A door and window structure with synchronous shaft and stepless locking function

Abstract

The present invention relates to the technical field of doors and windows, and in particular to a door and window structure with a synchronous shaft and a stepless locking function, comprising a first frame, a second frame, a coaxial mechanism and a locking mechanism, wherein the second frame is arranged on the first frame, two ends of the second frame are respectively movably connected to the first frame, the coaxial mechanism is arranged in the second frame, the locking mechanism is arranged on the second frame, and the locking mechanism is movably connected to the synchronous shaft; by arranging the coaxial mechanism and the locking mechanism on the second frame, the synchronous shaft is always in a vertical state during the process of pushing and pulling the second frame, ensuring that the upper and lower ends of the second frame move at the same distance, avoiding angular offset caused by inconsistent upper and lower ends of the second frame moving at the same distance, thereby avoiding the second frame from getting stuck or stalled during the process of pushing and pulling, and at the same time, the locking mechanism can steplessly control the opening and closing direction and degree of the second frame, eliminating safety hazards and improving safety in use.

Description

Technical Field

[0001] The invention relates to the technical field of doors and windows, and in particular to a door and window structure with a synchronous shaft and a stepless locking function. Background Art

[0002] Based on the current living needs of residents, most buildings have added ventilation screens to prevent mosquitoes or dust from entering the room while ventilating the entire room. At the same time, the color and pattern of the screens can be customized according to actual life needs to make it more beautiful and to a certain extent improve the privacy of the room during ventilation.

[0003] At present, most of the traditional screens on the market are installed on the original glass window frame through a metal frame (such as aluminum alloy, etc.), and are opened and closed by pushing and pulling. However, in order to facilitate installation, the height of the screen frame usually needs to be slightly smaller than the height of the glass window frame, which makes a gap between the screen frame and the glass window frame in the longitudinal direction. During the process of pushing and pulling the screen window, the gap may cause the screen window to deviate in angle up and down, resulting in jamming and setbacks during the pushing and pulling process. In severe cases, the screen frame may be completely stuck, affecting normal use.

[0004] It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes prior art already known to a person skilled in the art. Summary of the invention

[0005] In order to solve the technical problem that the conventional screen window is prone to jamming and stopping during the process of pushing and pulling, the present invention provides a door and window structure with a synchronous shaft and a stepless locking function, the door and window structure with a synchronous shaft and a stepless locking function comprises a first frame, a second frame, a coaxial mechanism and a locking mechanism;

[0006] The second frame is arranged on the first frame, and two ends of the second frame are movably connected to the first frame respectively;

[0007] The coaxial mechanism comprises a synchronization shaft and two coaxial racks, wherein the synchronization shaft is arranged in the second frame, and two ends of the synchronization shaft extend out of the second frame and are movably connected to the first frame, and the two coaxial racks are relatively arranged on the first frame, and the two ends of the synchronization shaft are movably connected to the two coaxial racks respectively;

[0008] The locking mechanism is arranged on the second frame body, and the locking mechanism is movably connected to the synchronization shaft.

[0009] Furthermore, a gauze box is connected to one side of the first frame, the gauze box has a gauze, and the gauze is connected to the second frame.

[0010] Furthermore, a first slide seat and a second slide seat are respectively provided at two ends of the second frame, and the first slide seat and the second slide seat are respectively slidably connected to the first frame;

[0011] A first coaxial gear is provided in the first slide, a second coaxial gear is provided in the second slide, two ends of the synchronization shaft extend out of the second frame and are respectively connected to the first coaxial gear and the second coaxial gear, and the first coaxial gear and the second coaxial gear are respectively meshed with the two coaxial racks.

[0012] Furthermore, the locking mechanism includes a switch assembly, a ratchet and a transmission assembly, the switch assembly is arranged on the second frame, the ratchet is sleeved on the synchronization shaft, the transmission assembly is located between the switch assembly and the ratchet, and the two ends of the transmission assembly are respectively connected to the switch assembly and the ratchet.

[0013] Furthermore, the switch assembly includes a handle, a switch member and an elastic member, the handle is arranged on the second frame, the switch member is movably arranged on the handle, one end of the elastic member abuts against the inner wall of the handle, and the other end of the elastic member abuts against the switch member.

[0014] Further, the transmission assembly includes a first transmission member, a second transmission member and a locking member, the first transmission member is provided with a first transmission groove, a second transmission groove and a third transmission groove, the first transmission groove is movably connected to the switch member, the second transmission groove is movably connected to the second transmission member, one end of the locking member is movably connected to the third transmission groove, and the other end of the locking member is movably connected to the ratchet.

[0015] Furthermore, a transmission through hole is formed on the second transmission member, a transmission part is formed in the transmission through hole, and the transmission part is movably connected to the second transmission groove.

[0016] Furthermore, the first transmission member is L-shaped.

[0017] Furthermore, the door and window structure with a synchronization shaft and a stepless locking function further comprises a third frame, wherein the third frame is movably arranged on the first frame, and the third frame and the second frame are arranged relative to each other.

[0018] Furthermore, the door and window structure with a synchronization shaft and a stepless locking function also includes a guardrail, and the guardrail is connected to the first frame.

[0019] In some embodiments, the locking mechanism comprises:

[0020] A synchronous member, arranged on the synchronous shaft and rotating synchronously with the synchronous shaft, wherein the synchronous member has a first matching portion;

[0021] A switch component is movably disposed on the second frame, the switch component has a second matching portion, and the first matching portion and the second matching portion are adapted to each other;

[0022] Wherein, when the first matching portion and the second matching portion match each other, the switch component restricts the synchronous member from rotating in the reverse direction;

[0023] When the first mating portion and the second mating portion are separated, the synchronizer can rotate freely relative to the switch component.

[0024] In some embodiments, the locking mechanism further comprises:

[0025] A spring, one end of which contacts the switch component and the other end of which contacts the second frame, to provide a force to enable the first matching portion and the second matching portion to match each other. When an external force pushes the switch component to move relative to the second frame, the first matching portion and the second matching portion are separated.

[0026] In some embodiments, the switch component comprises:

[0027] A first moving member, movable relative to the second frame;

[0028] The second moving member is connected to the first moving member and can move with the first moving member. The second matching portion is located on the second moving member and has a accommodating cavity. The spring is located in the accommodating cavity, and one end of the spring acts on the cavity wall of the accommodating cavity.

[0029] In some embodiments, the first moving member has an avoidance cavity, and the locking mechanism further comprises:

[0030] A first connecting member, disposed in the accommodating cavity, the other end of the spring acting on the first connecting member;

[0031] a second connecting member, disposed between the first moving member and the second moving member, having a limiting groove, wherein the limiting groove is used to limit the moving range of the first moving member;

[0032] A third connecting member is arranged on a side of the first moving member away from the second connecting member, and has a connecting groove, through which the first moving member passes, and can move relative to the third connecting member;

[0033] A fastener passes through the third connecting member, the avoidance cavity, the second connecting member, the second frame and the first connecting member to connect the third connecting member, the second connecting member, the second frame and the first connecting member.

[0034] Based on the above, the present invention provides a door and window structure with a synchronization axis and a stepless locking function. Compared with the prior art, a coaxial mechanism and a locking mechanism are arranged on the second frame, so that the synchronization axis is always in a vertical state during the process of pushing and pulling the second frame, ensuring that the upper and lower ends of the second frame move at the same distance, avoiding angular deviation caused by inconsistent movement distances of the upper and lower ends of the second frame, which in turn causes the second frame to become stuck or jerked during the pushing and pulling process. At the same time, the locking mechanism can steplessly control the opening and closing direction and degree of the second frame, thereby eliminating safety hazards and improving safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. The positional relationship described in the drawings in the following description is based on the direction of the components in the drawings unless otherwise specified.

[0036] Figure 1 A schematic structural diagram of a door and window structure with a synchronous shaft and a stepless locking function provided by an embodiment of the present invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0038] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at N in the middle;

[0039] Figure 4 A schematic diagram of the structure of a second frame provided by an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of an exploded structure of a locking mechanism provided in one embodiment of the present invention;

[0041] Figure 6 A schematic diagram of the structure of a transmission assembly provided by an embodiment of the present invention;

[0042] Figure 7 for Figure 3 Schematic diagram of the slope structure at the middle BB;

[0043] Figure 8 A schematic diagram of a second frame and a locking mechanism provided in one embodiment of the present invention;

[0044] Fig. 9 A partial schematic diagram of a second frame and a locking mechanism provided in one embodiment of the present invention;

[0045] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at C in the middle;

[0046] Fig.11 A schematic diagram of another partial mechanism of a second frame and a locking mechanism provided by an embodiment of the present invention;

[0047] Fig.12 A schematic diagram of a partial explosion mechanism of a second frame and a locking mechanism provided in one embodiment of the present invention;

[0048] Fig.13 A schematic structural diagram of a door and window structure with a synchronization shaft and a stepless locking function provided in another embodiment of the present invention.

[0049] Reference numerals:

[0050] 100-first frame 200-second frame

[0051] 400-locking mechanism 500-mesh box 600-first slide

[0052] 700- second slide 800- third frame 900- guardrail

[0053] 310-synchronous shaft 320-coaxial rack 410-switch assembly

[0054] 420-ratchet 430-transmission assembly 510-gauze

[0055] 610- first coaxial gear 710- second coaxial gear 411- handle

[0056] 412- switch member 413- elastic member 431- first transmission member

[0057] 432- second transmission member 433- locking member 4311- first transmission groove

[0058] 4312- second transmission groove 4313- third transmission groove 4321- transmission through hole

[0059] 4322-Transmission Department

[0060] 10-synchronizing part 20-switch component 30-spring

[0061] 11-first matching portion 21-second matching portion

[0062] 22-first moving member 24-second moving member 23-accommodating chamber

[0063] 41-first connecting piece 42-second connecting piece 43-third connecting piece

[0064] 44-Fasteners DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof all mean "at least including".

[0067] See also Figure 1 and Figure 2 , Figure 1 A schematic structural diagram of a door and window structure with a synchronous shaft and a stepless locking function provided by an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle.

[0068] In order to solve the technical problem that the conventional screen window mentioned above is prone to jamming and setbacks during the push-pull opening and closing process, or to achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a door and window structure with a synchronization shaft and a stepless locking function. As shown in the figure, the door and window structure with a synchronization shaft and a stepless locking function includes a first frame 100 and a second frame 200. The inner sides of the upper and lower ends of the first frame 100 are respectively provided with sliding grooves. The second frame 200 is arranged on the first frame 100, and the upper and lower ends of the second frame 200 are respectively slidably connected to the sliding grooves on the first frame 100.

[0069] Of course, the present invention does not limit the direction of opening and closing, that is, the second frame body 100 can be set to open and close up and down, in which case, the sliding grooves are opened on the inner sides of the left and right ends of the first frame body 100, and the second frame body 200 is horizontally arranged on the first frame body 100. The left and right ends of the second frame body 200 are respectively slidably connected to the sliding grooves on the first frame body 100.

[0070] The second frame 200 is provided with a coaxial mechanism. The coaxial mechanism comprises a synchronization shaft 310 and two coaxial racks 320. The synchronization shaft 310 is rotatably arranged in the second frame 200, and the two ends of the synchronization shaft 310 extend out of the second frame 200 and are movably connected to the first frame 100. The two coaxial racks 320 are arranged on the first frame 100 in a relative manner. Specifically, the two coaxial racks 320 are arranged on the side walls of the two sliding grooves. The two ends of the synchronization shaft 310 are movably connected to the two coaxial racks 320.

[0071] In specific implementation, when the user pushes and pulls the second frame body 200 to open and close, the two ends of the synchronization shaft 310 are respectively rollingly connected to the two coaxial racks 320, so that the synchronization shaft 310 is always in a vertical state, ensuring that the upper and lower ends of the second frame body 200 move at the same distance, avoiding angular deviation caused by inconsistent movement distances of the upper and lower ends of the second frame body 200, and thus causing the second frame body 200 to become stuck or stalled during the push-pull opening and closing process.

[0072] The second frame 200 is also provided with a locking mechanism 400. The locking mechanism 400 is movably connected to the synchronization shaft 310. In specific implementation, the locking mechanism 400 can control the synchronization shaft 310 to achieve unidirectional rotation. Under normal conditions, when the second frame 200 is pushed, pulled, opened and closed, the synchronization shaft 310 can rotate freely, so that the second frame 200 moves relative to the first frame 100. When the locking mechanism 400 suppresses the reverse rotation of the synchronization shaft 310, the second frame 200 cannot be pushed or pulled in the reverse direction, so that the user can steplessly control the opening and closing direction and degree of the second frame 200, eliminating safety hazards to a certain extent.

[0073] In some preferred embodiments, a screen box 500 is connected to one side of the first frame 100. Figure 3 As shown, the gauze box 500 is arranged on one side of the first frame 100, and the gauze box 500 is parallel to the second frame 200. The gauze box 500 has a gauze 510. The gauze 510 is connected to the second frame 200. Specifically, the gauze 510 is a rolling curtain gauze. One end of the gauze 510 is connected to the second frame 200. When the second frame 200 is pushed or pulled in a direction away from the gauze box 500, the gauze 510 can be pulled out of the gauze box 500 to form a screen window with ventilation function, which prevents mosquitoes or dust from entering the room while ventilating.

[0074] Of course, in some other embodiments, the gauze 510 can be replaced with other materials such as blackout curtains, privacy films, etc. according to actual needs to achieve different functions, all of which are within the scope of protection of the present application.

[0075] Please combine Figure 1 See also Figure 4 On the basis of the above, the first slide 600 and the second slide 700 are respectively provided at both ends of the second frame 200. The first slide 600 and the second slide 700 are respectively slidably connected to the sliding grooves at the upper and lower ends of the first frame 100. Further, a first coaxial gear 610 is provided in the first slide 600. A second coaxial gear 710 is provided in the second slide 700. Both ends of the synchronization shaft 310 extend out of the second frame 200, and are respectively connected to the first coaxial gear 610 and the second coaxial gear 710. In specific implementation, the first coaxial gear 610 and the second coaxial gear 710 are respectively meshed with the coaxial racks 320 in the two sliding grooves. When the user pushes and pulls the second frame body 200, the first coaxial gear 610 and the second coaxial gear 710 respectively mesh with the coaxial rack 320, so that the upper and lower ends of the second frame body 200 move at the same distance, thereby avoiding angular deviation caused by inconsistent movement distances of the upper and lower ends of the second frame body 200, which may cause the second frame body 200 to get stuck or stalled during the push-pull opening and closing process.

[0076] It should be noted that the coaxial racks 320 at the upper and lower ends of the first frame 100 should be arranged on the same side of the two sliding grooves to avoid the situation where the upper and lower ends of the synchronization shaft 310 rotate in opposite directions, resulting in the second frame 200 being unable to be pushed or pulled.

[0077] Please combine Figure 4 See also Figure 5In some preferred embodiments, the locking mechanism 400 includes a switch assembly 410, a ratchet 420 and a transmission assembly 430. The switch assembly 410 is disposed on the second frame 200. The ratchet 420 is sleeved on the synchronization shaft 310 and rotates with the rotation of the synchronization shaft 310. The transmission assembly 430 is located between the switch assembly 410 and the ratchet 420, and the two ends of the transmission assembly 430 are respectively connected to the switch assembly 410 and the ratchet 420. The user can control the rotation of the ratchet 420 through the switch assembly 410 and the transmission assembly 430, and then control the synchronization shaft 310 to achieve unidirectional rotation, so as to achieve the purpose of steplessly controlling the opening and closing direction and opening and closing degree of the second frame 200.

[0078] In a specific implementation, the switch assembly 410 includes a handle 411, a switch member 412 and an elastic member 413. The handle 411 is fixedly arranged on the second frame 200. The handle 411 has a cavity inside, and a hole is opened on one side wall. The switch member 412 is movably arranged in the handle 411 and extends out of the handle 411 through the hole. One end of the elastic member 413 abuts against the inner wall of the handle 411, and the other end abuts against the switch member 412, thereby pressing the switch member 412 against the handle 411. When the user presses the switch member 412, the elastic member 413 contracts. When the user does not press it, the elastic member 413 resets to push the switch member 412 to its original position and presses against the handle 411.

[0079] It is understandable that in order to prevent the switch member 412 from falling off, the switch member 412 has a side skirt on the side facing the elastic member 413, and the diameter of the side skirt is larger than the hole on the handle 411, so that the switch member 412 is stably and movably arranged in the handle 411.

[0080] The ratchet teeth on the ratchet wheel 420 are tilted to one side, so that the ratchet wheel 420 has a unidirectional rotation function (conventional technical means), so that the user can steplessly control the opening and closing direction and degree of the second frame 200, eliminating safety hazards to a certain extent. It should be noted that when designing the tilt direction of the ratchet teeth of the ratchet wheel 420, the rotation direction of the synchronous shaft 310 and the setting position of the coaxial rack 320 should be considered, so that the unidirectional rotation direction of the ratchet wheel 420 is the direction in which the second frame 200 pulls the screen 510 out to form a screen window, so that after the screen 510 is pulled out, the second frame 200 cannot be pushed in the opposite direction under normal conditions. At the same time, stepless control and adjustment of the opening and closing degree are achieved.

[0081] Please combine Figure 5 See also Figure 6 , Figure 7The transmission assembly 430 includes a first transmission member 431, a second transmission member 432 and a locking member 433. The first transmission member 431 is provided with a first transmission groove 4311, a second transmission groove 4312 and a third transmission groove 4313. The first transmission groove 4311 is movably connected to the switch member 412. The second transmission groove 4312 is movably connected to the second transmission member 432. The third transmission groove 4313 is movably connected to the locking member 433. One end of the locking member 433 away from the third transmission groove 4313 is movably connected to the ratchet 420.

[0082] Furthermore, a transmission through hole 4321 is formed on the second transmission member 432. A transmission portion 4322 is formed in the transmission through hole 4321. The transmission portion 4321 is movably connected to the second transmission groove 4312. Preferably, the first transmission member 431 is L-shaped, that is, the first transmission groove 4311 and the second transmission groove 4312 are on the same plane, and the third transmission operation 4313 is perpendicular to the first transmission groove 4311 and the second transmission groove 4312, thereby redirecting the force of the user pressing the switch member 412, controlling the locking member 433 to limit or release the ratchet 420, and achieving the purpose of controlling the opening and closing direction and opening and closing degree of the second frame 200.

[0083] In specific implementation, since the ratchet 420 has the function of unidirectional rotation (the direction of unidirectional rotation is clockwise in this embodiment), the user does not need to worry about the locking mechanism 400, and can directly push and pull the second frame 200, and then pull out the screen 510 to form a screen window. When the screen window needs to be closed, the user needs to press the switch member 412 to make the switch member 412 move horizontally to the left, and drive the first transmission member 431 to rotate with the first transmission groove 4312 and the transmission part 4322 as the fulcrum through the first transmission groove 4311, so that the third transmission groove 4313 rotates downward synchronously, and then drives the locking member 433 to move downward, releases the ratchet 420, so that the ratchet 420 can rotate counterclockwise, and then pushes the second frame 200 to retract the screen 510 into the screen box 500, and completes the closing of the screen window.

[0084] It is understandable that the transmission and rotation directions in the above embodiments are only combined with Figure 7 The structural function and action process of the locking mechanism 400 are described here, and cannot be interpreted as a restriction on the transmission and rotation direction.

[0085] like Figure 8-12 As shown, in some embodiments, the locking mechanism 400 includes:

[0086] A synchronous member 10 is disposed on the synchronous shaft 310 and rotates synchronously with the synchronous shaft 310. The synchronous member 10 has a first matching portion 11;

[0087] The switch component 20 is movably disposed on the second frame 200, and the switch component 20 has a second matching portion 21, and the first matching portion 11 and the second matching portion 21 are adapted to each other;

[0088] Wherein, when the first matching portion 11 and the second matching portion 21 match each other, the switch component 20 restricts the synchronous member 10 from rotating in the reverse direction;

[0089] When the first matching portion 11 and the second matching portion 21 are separated, the synchronizer 10 can rotate freely relative to the switch component 20 .

[0090] In this embodiment, the synchronizer 10 can be the same ratchet as the above embodiment, with unidirectional inclined teeth, allowing unidirectional rotation and preventing reverse rotation. In order to facilitate the adaptation of the synchronizer 10, limiters can also be respectively arranged on both sides of the synchronizer 10, and the limiters can rotate with the synchronization shaft 310 or not with the synchronization shaft 310. One side of the two limiters abuts against the synchronizer 10, forming the limiters on both sides abutting against the synchronizer 10 respectively. Two bearings are also provided, the outer ring of the bearing is installed on the second frame 200, the inner ring of the bearing is connected to the synchronization shaft 310, and the two bearings are respectively arranged on both sides of the synchronizer 10, forming a structure in which one side of a limiter abuts against one side of the synchronizer 10, and the other side of the limiter abuts against the bearing, and one side of the other limiter abuts against the other side of the synchronizer 10, and the other side of the limiter abuts against the bearing, so that the synchronizer 10 is restricted during use and cannot move along the axial direction of the synchronization shaft 310.

[0091] In some embodiments, a mounting box may be further configured, which may include an upper box body and a lower box body. The mounting box may be mounted on the second frame body 200, and the mounting method may be bolts or clamping. The mounting box has a receiving cavity and a longitudinally connected opening. The receiving cavity is used for arranging the synchronizer 10, the bearing and the stopper therein. The receiving cavity has a mounting groove, and the outer ring of the bearing is embedded and mounted in the mounting groove, so that the bearing will not move along the axial direction of the synchronizer shaft 310.

[0092] The first matching portion 11 on the synchronizer 10 may be a tooth on the ratchet wheel, or may be a groove on the ratchet wheel.

[0093] The switch component 20 can move relative to the second frame 200 along the axial direction of the synchronization shaft 310 , and during the movement, the second matching portion 21 thereon is driven to move. The second matching portion 21 can be a groove or a protrusion provided on the switch component 20 .

[0094] When the first mating piece is a ratchet tooth, the second mating portion 21 can be a groove, so that when the tooth of the first mating piece enters the groove of the second mating portion 21, the reversal of the synchronizer 10 is restricted, that is, the synchronization shaft 310 cannot be reversed, and the backward movement of the second frame 200 is restricted.

[0095] When the first mating piece is a ratchet groove, the second mating portion 21 can be a protrusion, so that when the protrusion of the second mating piece enters the groove of the first mating portion 11, the reversal of the synchronizer 10 is restricted, that is, the synchronization shaft 310 cannot be reversed, thereby restricting the movement of the second frame 200.

[0096] In this embodiment, when the switch component 20 is not pushed, the first mating portion 11 and the second mating portion 21 are in a mating state. In the mating state, the synchronizer 10 cannot rotate in the opposite direction, and the relative synchronizer shaft 310 can only rotate in the forward direction but not in the reverse direction, so that the second frame 200 can only move in a single direction during the pulling process, for example, to the left but not to the right.

[0097] In this embodiment, when the switch component 20 is pushed, the first matching portion 11 and the second matching portion 21 are in a separated state. In the separated state, the synchronizer 10 can rotate freely in both directions, and the relative synchronizer shaft 310 can also rotate freely in both directions, so that the second frame 200 can move forward or backward during the pulling process, thereby freely adjusting the position of the second frame 200 relative to the first frame 100, that is, adjusting the position of the screen window or retracting the screen window.

[0098] In this embodiment, a guide groove may be provided on the second frame body 200 , and the extension direction of the guide groove is the axial direction of the synchronization shaft 310 . The switch component 20 may be provided on the guide groove so as to move relative to the second frame body 200 .

[0099] In this embodiment, the switch component 20 is restricted to the position where the first matching portion 11 and the second matching portion 21 match each other. The switch component 20 restricts the synchronous member 10 and the synchronous shaft 310 from rotating in the opposite direction, so that in the process of pulling the second frame 200 to drive the screen to move, the synchronous shaft 310 cannot be reversed, thereby realizing the stepless locking function of the doors and windows. By pushing the switch component 20, the synchronous shaft 310 can be reversed, so that the position where the screen window will be pulled can be adjusted.

[0100] In some embodiments, the locking mechanism 400 further comprises:

[0101] The spring 30 has one end in contact with the switch component 20 and the other end in contact with the second frame body 200 to provide a force to enable the first matching portion 11 and the second matching portion 21 to match each other. When an external force pushes the switch component 20 to move relative to the second frame body 200, the first matching portion 11 and the second matching portion 21 are separated.

[0102] In this embodiment, one end of the spring 30 can be in contact with the switch component 20 by means of embedded installation, so that one end of the spring 30 is fixed on the switch component 20, or one end of the spring 30 can abut on the switch component 20; similarly, the other end of the spring 30 can be in contact with the second frame 200 by means of embedded installation, so that one end of the spring 30 is fixed on the second frame 200, or one end of the spring 30 can abut on the second frame 200; when the switch component 20 moves toward the compression side of the spring 30, the switch component 20 can act on the spring 30, so that the switch component 20 and the second frame 200 are in contact. The two frames 200 together compress the spring 30, and at the same time, the switch component 20 does not restrict the synchronous part 10 from rotating with the synchronous shaft 310. However, the compressed spring 30 will apply a force to the switch component 20, so that the switch component 20 has an outward force. Under this force, if the switch component 20 is released, the force of the spring 30 can drive the switch component 20 to move the second matching part 21 thereon, so that the switch component 20 moves to a position where the first matching part 11 and the second matching part 21 match each other, so that the switch component 20 restricts the synchronous part 10 and the synchronous shaft 310 from rotating in the opposite direction.

[0103] The external force in this embodiment may be artificial, or a steering gear or a motor may be provided to push the switch component 20 to move by outputting a force, so as to realize automatic adjustment of the switch component 20 and realize the function of controlling the switch component 20.

[0104] By means of the spring 30 of this embodiment, the switch component 20 can be restricted to the position where the first matching portion 11 and the second matching portion 21 match each other. The switch component 20 restricts the synchronous member 10 and the synchronous shaft 310 from rotating in the opposite direction. Thus, in the process of pulling the second frame 200 to drive the screen to move, the stepless locking function of the doors and windows is achieved because the synchronous shaft 310 cannot be reversed. By pushing the switch component 20, the synchronous shaft 310 can be reversed, so that the screen can be pulled back to the desired position.

[0105] In some embodiments, the switch component 20 comprises:

[0106] A first moving member 22, movable relative to the second frame body 200;

[0107] The second movable member 24 is connected to the first movable member 22 and can move with the first movable member 22. The second matching portion 21 is located on the second movable member 24 and has an accommodating cavity 23. The spring 30 is located in the accommodating cavity 23, and one end of the spring 30 acts on the cavity wall of the accommodating cavity 23.

[0108] In the present embodiment, the first moving member 22 can be installed on the second frame body 200 by being arranged on the groove or track etc. on the second frame body 200, so that the second moving member 24 can move relative to the second frame body 200. At least part of the first moving member 22 is located outside the second frame body 200, so that the operator can operate. Of course, the first moving member 22 can also be located in the second frame body 200, and the operator can reach out or push with a finger to realize the operation.

[0109] The second moving member 24 and the first moving member 22 can be connected by bolts or by clamping, specifically, a projection is provided on the first moving member 22, a groove is provided on the second moving member 24, and the projection is inserted into the groove, so that the second moving member 24 can move with the movement of the first moving member 22. At least part of the first moving member 22 is arranged outside the second frame 200, and the second moving member 24 can be completely hidden in the second frame 200.

[0110] The second moving member 24 can be arranged in parallel with the synchronization shaft 310 , and the second matching portion 21 is located at a position of the second moving member 24 close to the synchronization shaft 310 .

[0111] The second matching portion 21 is located on the second moving member 24. When the first moving member 22 moves and drives the second moving member 24 to move, the second matching portion 21 on the second moving member 24 is driven, thereby controlling whether the synchronizer 10 can be reversed.

[0112] The second moving member 24 has a receiving cavity 23 in the middle thereof, into which a spring 30 can be placed. One end of the spring 30 acts on the cavity wall of the receiving cavity 23, and the other end of the spring 30 acts on the second frame 200 extending into the receiving cavity 23.

[0113] In some embodiments, the first moving member 22 has an avoidance cavity, and the locking mechanism further comprises:

[0114] A first connecting member 41 is disposed in the accommodating cavity 23, and the other end of the spring 30 acts on the first connecting member 41;

[0115] The second connecting member 42 is disposed between the first moving member 22 and the second moving member 24 and has a limiting groove, and the limiting groove is used to limit the moving range of the first moving member 22;

[0116] The third connecting member 43 is disposed on a side of the first moving member 22 away from the second connecting member 42 and has a connecting groove. The first moving member 22 passes through the connecting groove and can move relative to the third connecting member 43.

[0117] The fastener 44 passes through the third connecting member 43 , the avoidance cavity, the second connecting member 42 , the second frame 200 , and the first connecting member 41 to connect the third connecting member 43 , the second connecting member 42 , the second frame 200 , and the first connecting member 41 .

[0118] In this embodiment, the fastener 44 can be a bolt or a screw, etc. The first connecting member 41 can move in the accommodating cavity 23, and the other end of the spring 30 abuts against the first connecting member 41. When the second movable member 24 moves, since the first connecting member 41 is fixed to the second frame 200 by the fastener 44, the second movable member 24 moves relative to the first connecting member 41, so that the spring 30 between the first connecting member 41 and the second movable member 24 is compressed.

[0119] The first connecting member 41, the second connecting member 42 and the third connecting member 43 can all be part of the second frame 200. The second connecting member 42 has a limiting groove, so that the first movable member 22 has a protrusion, and the protrusion passes through the limiting groove and is inserted into the groove of the second movable member 24. The limiting groove can limit the movement of the protrusion, so that the movement of the first movable member 22 is limited to a certain area.

[0120] The avoidance cavity is provided on the first movable member 22, so that the fastener 44 can move through the first avoidance cavity. Meanwhile, the first avoidance cavity can also play a role of limiting, so as to prevent the first movable member 22 from moving in an excessively large area.

[0121] The third connecting member 43 is provided with a connecting groove, which is arranged along the axial direction of the synchronization shaft 310 to form a track-like structure, so that the first movable member 22 can be configured on the connecting groove, and the left and right movement of the first movable member 22 is limited by the connecting groove.

[0122] like Fig.13As shown, in some other preferred embodiments, the door and window structure with a synchronous shaft and a stepless locking function further includes a third frame 800. The third frame 800 is movably arranged on the first frame 100, and the third frame 800 and the second frame 200 are arranged relative to each other. In specific implementation, the third frame 800 can be installed opposite to the second frame 200 according to actual installation needs, and the screen box 500 is designed to be two, and the second frame 200 and the third frame 800 are respectively connected with screens. The user can push and pull the second frame 200 and the third frame 800 toward the middle at the same time, so that the second frame 200 is connected to the third frame 800, forming a double-opening screen window, which is convenient for the use of doors and windows with a larger width, and improves the application scenario and adaptability.

[0123] In some preferred embodiments, the door and window structure with a synchronous shaft and a stepless locking function further includes a guardrail 900. The guardrail 900 is connected to the first frame 100. The guardrail 900 can improve strength and safety and eliminate potential safety hazards.

[0124] In summary, the door and window structure with a synchronization axis and a stepless locking function provided by the present invention, compared with the prior art, is configured such that a coaxial mechanism and a locking mechanism are arranged on the second frame body, so that the synchronization axis is always in a vertical state during the process of pushing and pulling the second frame body, thereby ensuring that the upper and lower ends of the second frame body move at the same distance, thereby avoiding angular deviation caused by inconsistent movement distances of the upper and lower ends of the second frame body, which may cause the second frame body 200 to become stuck or stalled during the pushing and pulling process. At the same time, the locking mechanism can steplessly control the opening and closing direction and degree of the second frame body, thereby eliminating safety hazards and improving safety of use.

[0125] Although the terms such as first frame, second frame, screen box etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

[0126] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the present invention can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door and window structure with a synchronous shaft and a stepless locking function, characterized in that: include: A first frame; a second frame body, the second frame body being arranged on the first frame body, and two ends of the second frame body being movably connected to the first frame body respectively; A coaxial mechanism, wherein the coaxial mechanism comprises a synchronization shaft and two coaxial racks, wherein the synchronization shaft is arranged in the second frame, and the two ends of the synchronization shaft extend out of the second frame and are movably connected to the first frame, and the two coaxial racks are relatively arranged on the first frame, and the two ends of the synchronization shaft are movably connected to the two coaxial racks respectively; A locking mechanism is provided on the second frame body and is movably connected to the synchronization shaft.

2. The door and window structure with a synchronous shaft and a stepless locking function according to claim 1, characterized in that: A gauze box is connected to one side of the first frame. The gauze box has a gauze therein, and the gauze is connected to the second frame.

3. The door and window structure with a synchronous shaft and a stepless locking function according to claim 1, characterized in that: A first slide seat and a second slide seat are respectively disposed at two ends of the second frame, and the first slide seat and the second slide seat are respectively slidably connected to the first frame; A first coaxial gear is provided in the first slide, a second coaxial gear is provided in the second slide, two ends of the synchronization shaft extend out of the second frame and are respectively connected to the first coaxial gear and the second coaxial gear, and the first coaxial gear and the second coaxial gear are respectively meshed with the two coaxial racks.

4. The door and window structure with a synchronous shaft and a stepless locking function according to claim 1, characterized in that: The locking mechanism comprises a switch assembly, a ratchet and a transmission assembly, wherein the switch assembly is arranged on the second frame, the ratchet is sleeved on the synchronization shaft, the transmission assembly is located between the switch assembly and the ratchet, and the two ends of the transmission assembly are respectively connected to the switch assembly and the ratchet.

5. The door and window structure with a synchronous shaft and a stepless locking function according to claim 4, characterized in that: The switch assembly comprises a handle, a switch member and an elastic member. The handle is arranged on the second frame body, the switch member is movably arranged on the handle, one end of the elastic member abuts against the inner wall of the handle, and the other end of the elastic member abuts against the switch member.

6. The door and window structure with a synchronous shaft and a stepless locking function according to claim 4, characterized in that: The transmission assembly includes a first transmission member, a second transmission member and a locking member, the first transmission member is provided with a first transmission groove, a second transmission groove and a third transmission groove, the first transmission groove is movably connected to the switch member, the second transmission groove is movably connected to the second transmission member, one end of the locking member is movably connected to the third transmission groove, and the other end of the locking member is movably connected to the ratchet.

7. The door and window structure with a synchronous shaft and a stepless locking function according to claim 1, characterized in that: The locking mechanism comprises: A synchronous member, arranged on the synchronous shaft and rotating synchronously with the synchronous shaft, wherein the synchronous member has a first matching portion; A switch component is movably disposed on the second frame, the switch component has a second matching portion, and the first matching portion and the second matching portion are adapted to each other; Wherein, when the first matching portion and the second matching portion match each other, the switch component restricts the synchronous member from rotating in the reverse direction; When the first mating portion and the second mating portion are separated, the synchronizer can rotate freely relative to the switch component.

8. The door and window structure with a synchronous shaft and a stepless locking function according to claim 7, characterized in that: The locking mechanism further comprises: A spring, one end of which contacts the switch component and the other end of which contacts the second frame, to provide a force to enable the first matching portion and the second matching portion to match each other. When an external force pushes the switch component to move relative to the second frame, the first matching portion and the second matching portion are separated.

9. The door and window structure with a synchronous shaft and a stepless locking function according to claim 8, characterized in that: The switch component comprises: A first moving member, movable relative to the second frame; The second moving member is connected to the first moving member and can move with the first moving member. The second matching portion is located on the second moving member and has a accommodating cavity. The spring is located in the accommodating cavity, and one end of the spring acts on the cavity wall of the accommodating cavity.

10. The door and window structure with a synchronous shaft and a stepless locking function according to claim 9, characterized in that: The first moving member has an avoidance cavity, and the locking mechanism further comprises: A first connecting member, disposed in the accommodating cavity, the other end of the spring acting on the first connecting member; a second connecting member, disposed between the first moving member and the second moving member, having a limiting groove, wherein the limiting groove is used to limit the moving range of the first moving member; A third connecting member is arranged on a side of the first moving member away from the second connecting member, and has a connecting groove, through which the first moving member passes, and can move relative to the third connecting member; A fastener passes through the third connecting member, the avoidance cavity, the second connecting member, the second frame and the first connecting member to connect the third connecting member, the second connecting member, the second frame and the first connecting member.

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