Door and window structure with synchronizing shaft and stepless locking function

Abstract

The utility model relates to the technical field of doors and windows, in particular to a door and window structure with a synchronizing shaft and a stepless locking function, which comprises a first frame body, a second frame body, a coaxial mechanism and a locking mechanism, the second frame body is arranged on the first frame body, two ends of the second frame body are respectively and movably connected with the first frame body, the coaxial mechanism is arranged in the second frame body, and the locking mechanism is arranged in the second frame body. The locking mechanism is arranged on the second frame body and is movably connected with the synchronizing shaft; the coaxial mechanism and the locking mechanism are arranged on the second frame body, so that the synchronizing shaft is always in a vertical state in the process of pushing and pulling the second frame body, the movement distances of the upper end and the lower end of the second frame body are consistent, and angle deviation caused by inconsistent movement distances of the upper end and the lower end of the second frame body is avoided; meanwhile, the locking mechanism can control the opening and closing direction and the opening and closing degree of the second frame body in a stepless mode, potential safety hazards are eliminated, and the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to a door and window structure with a synchronous shaft and stepless locking function. Background Technology

[0002] Based on the current living needs of residents, most buildings have added ventilation screens to facilitate indoor ventilation while preventing mosquitoes or dust from entering the room. At the same time, the color and pattern of the screens can be customized according to actual living needs, making them more aesthetically pleasing and improving indoor privacy to a certain extent during ventilation.

[0003] Most traditional window screens on the market are installed on existing glass window frames using metal frames (such as aluminum alloy), and are opened and closed by sliding. However, for ease of installation, the height of the screen frame is usually slightly less than the height of the glass window frame. This creates a gap between the screen frame and the glass window frame in the vertical direction. During the sliding process, this gap can cause the screen to shift at an angle, resulting in jamming or stuttering. In severe cases, the screen frame may completely jam, affecting normal use.

[0004] It should be noted that the information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] To solve the technical problem that conventional screen windows are prone to jamming and jerking during the sliding and opening process, this utility model provides a door and window structure with a synchronous shaft and stepless locking function. The door and window structure with a synchronous shaft and stepless locking function includes a first frame, a second frame, a coaxial mechanism and a locking mechanism.

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

[0007] The coaxial mechanism includes a synchronous shaft and two coaxial racks. The synchronous shaft is disposed in the second frame, and its two ends extend out of the second frame and are movably connected to the first frame. The two coaxial racks are disposed opposite to each other on the first frame, and the two ends of the synchronous shaft are movably connected to the two coaxial racks respectively.

[0008] The locking mechanism is mounted on the second frame and is movably connected to the synchronous shaft.

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

[0010] Furthermore, the second frame is provided with a first slide and a second slide at both ends, and the first slide and the second slide are slidably connected to the first frame.

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

[0012] Furthermore, the locking mechanism includes a switch assembly, a ratchet, and a transmission assembly. The switch assembly is disposed on the second frame, the ratchet is sleeved on the synchronous shaft, and the transmission assembly is located between the switch assembly and the ratchet. 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 element, and a resilient element. The handle is disposed on the second frame, the switch element is movably disposed on the handle, one end of the resilient element abuts against the inner wall of the handle, and the other end of the resilient element abuts against the switch element.

[0014] Furthermore, 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, the second transmission member has a transmission through hole, and the transmission through hole has a transmission part, which is movably connected to the second transmission groove.

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

[0017] Furthermore, the door and window structure with synchronous shaft and stepless locking function also includes a third frame, which is movably disposed on the first frame and is disposed opposite to the second frame.

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

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

[0020] A synchronizing element is disposed on the synchronizing shaft and rotates synchronously with the synchronizing shaft; the synchronizing element has a first mating part.

[0021] A switch component is movably disposed on the second frame, the switch component having a second mating part, and the first mating part and the second mating part being adapted to each other;

[0022] Wherein, when the first mating part and the second mating part are in mutual cooperation, the switching component restricts the synchronous member from rotating in the opposite direction;

[0023] When the first mating part and the second mating part are separated, the synchronizing member can rotate freely relative to the switching member.

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

[0025] A spring, with one end in contact with the switch component and the other end in contact with the second frame, provides a force to engage the first and second mating parts. When an external force pushes the switch component to move relative to the second frame, the first and second mating parts separate.

[0026] In some embodiments, the switching component includes:

[0027] The first movable component is movable relative to the second frame;

[0028] The second movable member is connected to the first movable member and can move with the first movable member. The second mating part is located on the second movable member and has a receiving cavity. The spring is located in the receiving cavity and one end acts on the cavity wall of the receiving cavity.

[0029] In some embodiments, the first movable member has a clearance cavity, and the locking mechanism further comprises:

[0030] A first connector is disposed within the receiving cavity, and the other end of the spring acts on the first connector;

[0031] The second connecting member is disposed between the first moving member and the second moving member, and has a limiting groove, which is used to limit the movement range of the first moving member;

[0032] The third connector is disposed on the side of the first movable member away from the second connector, and has a connecting groove through which the first movable member passes and is movable relative to the third connector.

[0033] Fasteners pass through the third connector, the clearance cavity, the second connector, the second frame, and the first connector to connect the third connector, the second connector, the second frame, and the first connector.

[0034] Based on the above, the present invention provides a door and window structure with a synchronous shaft and stepless locking function. Compared with the prior art, by setting a coaxial mechanism and a locking mechanism on the second frame, the synchronous shaft is always in a vertical state during the pushing and pulling of the second frame, ensuring that the upper and lower ends of the second frame move at the same distance. This avoids angular deviation caused by inconsistent movement distances between the upper and lower ends of the second frame, which could lead to jamming or jerking 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, eliminating safety hazards and improving safety in use. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships shown in the drawings in the following description are based on the direction in which the components are drawn in the figures.

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

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

[0038] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point N;

[0039] Figure 4 This is a schematic diagram of the mechanism of the second frame provided in an embodiment of the present utility model;

[0040] Figure 5 An exploded view of the locking mechanism provided in an embodiment of this utility model;

[0041] Figure 6 This is a schematic diagram of the structure of a transmission assembly provided in an embodiment of the present invention;

[0042] Figure 7 for Figure 4 Schematic diagram of the slope structure at point BB;

[0043] Figure 8 A schematic diagram of the second frame and locking mechanism provided in an embodiment of the present utility model;

[0044] Figure 9 A partial schematic diagram of the second frame and locking mechanism provided in an embodiment of the present utility model;

[0045] Figure 10 for Figure 9 Enlarged structural diagram at point C;

[0046] Figure 11 This is a schematic diagram of another part of the second frame and locking mechanism provided in one embodiment of the present utility model;

[0047] Figure 12 A schematic diagram of a partial explosion mechanism for the second frame and locking mechanism provided in an embodiment of the present utility model;

[0048] Figure 13 This is a schematic diagram of a door and window structure with a synchronous shaft and stepless locking function, provided for another embodiment of the present invention.

[0049] Figure label:

[0050] 100-First frame 200-Second Frame 400-Locking Mechanism 500-mesh box 600-First Slide 700-Second Slide 800-Third Frame 900-Guardrail 310-Synchronous Shaft 320-Coaxial rack 410-Switch Assembly 420-Ratchet 430-Transmission Components 510-Network 610 - First Coaxial Gear 710 - Second coaxial gear 411-Handle 412-Switch 413-Elastic Component 431-First transmission component 432-Second transmission component 433-Locking component 4311-First Transmission Groove 4312-Second Transmission Groove 4313-Third Transmission Channel 4321 - Transmission through hole 4322-Transmission Unit 10-Synchronizer 20-Switch Components 30-Spring 11-First Coordination Department 21-Second Coordination Unit 22-First Moving Component 24-Second Moving Part 23-Receiving cavity 41-First Connector 42-Second Connector 43-Third Connector 44-Fasteners Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof mean "at least comprising."

[0053] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of a door and window structure with a synchronous shaft and stepless locking function provided in an embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure at point AA.

[0054] To address the technical problems of jamming and jerking that commonly occur during the opening and closing of conventional screen windows, or to achieve at least one or more of the aforementioned advantages, an embodiment of this utility model provides a door and window structure with a synchronous shaft and stepless locking function. As shown in the figure, this door and window structure with a synchronous shaft and stepless locking function includes a first frame 100 and a second frame 200. Sliding grooves are respectively formed on the inner sides of the upper and lower ends of the first frame 100. The second frame 200 is disposed on the first frame 100, and the upper and lower ends of the second frame 200 are slidably connected to the sliding grooves on the first frame 100.

[0055] Of course, this case does not restrict the direction of opening and closing; that is, the second frame 100 can be configured to open and close vertically. In this case, the sliding groove is formed on the inner side of the left and right ends of the first frame 100, and the second frame 200 is horizontally arranged on the first frame 100. The left and right ends of the second frame 200 are slidably connected to the sliding groove on the first frame 100, respectively.

[0056] A coaxial mechanism is provided on the second frame 200. The coaxial mechanism includes a synchronous shaft 310 and two coaxial racks 320. The synchronous shaft 310 is rotatably disposed within the second frame 200, and both ends of the synchronous shaft 310 extend out of the second frame 200 and are movably connected to the first frame 100. The two coaxial racks 320 are disposed opposite to each other on the first frame 100. Specifically, the two coaxial racks 320 are disposed on the sidewalls of two sliding grooves. Both ends of the synchronous shaft 310 are movably connected to the two coaxial racks 320.

[0057] In practice, when the user pushes and pulls the second frame 200 to open and close, the two ends of the synchronous shaft 310 are respectively rolledly connected to the two coaxial racks 320, so that the synchronous shaft 310 is always in a vertical state, ensuring that the upper and lower ends of the second frame 200 move the same distance, avoiding the angle deviation caused by the inconsistent movement distance of the upper and lower ends of the second frame 200, which would lead to jamming or jerking of the second frame 200 during the pushing and pulling process.

[0058] The second frame 200 is also equipped with a locking mechanism 400. The locking mechanism 400 is movably connected to the synchronous shaft 310. In specific implementation, the locking mechanism 400 can control the synchronous shaft 310 to achieve unidirectional rotation. Under normal conditions, when the second frame 200 is pushed, pulled, opened, or closed, the synchronous shaft 310 can rotate freely, allowing the second frame 200 to move relative to the first frame 100. When the locking mechanism 400 inhibits the reverse rotation of the synchronous shaft 310, the second frame 200 cannot be pushed or pulled in the opposite direction, allowing the user to steplessly control the opening and closing direction and degree of the second frame 200, thus eliminating safety hazards to a certain extent.

[0059] In some preferred embodiments, a mesh box 500 is connected to one side of the first frame 100. Specifically, as shown in the following implementation... Figure 3 As shown, the screen box 500 is disposed on one side of the first frame 100, and is parallel to the second frame 200. The screen box 500 contains a screen 510. The screen 510 is connected to the second frame 200. Specifically, the screen 510 is a roller blind screen. One end of the screen 510 is connected to the second frame 200. When the second frame 200 is pushed or pulled away from the screen box 500, the screen 510 can be pulled out of the screen box 500, forming a breathable screen window that allows ventilation while preventing mosquitoes or dust from entering the room.

[0060] Of course, in other embodiments, the mesh 510 can be replaced with other materials such as blackout curtains or privacy films according to actual needs to achieve different functions, all of which are within the scope of protection of this application.

[0061] Please combine Figure 1 See Figure 4Based on the above, the second frame 200 has a first slide block 600 and a second slide block 700 at both ends. The first slide block 600 and the second slide block 700 are slidably connected to the sliding grooves at the upper and lower ends of the first frame 100, respectively. Further, the first slide block 600 has a first coaxial gear 610, and the second slide block 700 has a second coaxial gear 710. The two ends of the synchronous 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 mesh with the coaxial racks 320 in the two sliding grooves, respectively. When the user pushes or pulls the second frame 200, the first coaxial gear 610 and the second coaxial gear 710 mesh with the coaxial rack 320 respectively, so that the upper and lower ends of the second frame 200 move the same distance. This avoids the angular deviation caused by the inconsistent movement distance of the upper and lower ends of the second frame 200, which would lead to jamming or jerking of the second frame 200 during the pushing and pulling process.

[0062] It should be noted that the coaxial racks 320 at the upper and lower ends of the first frame 100 should be set on the same side of the two sliding grooves to avoid the rotation directions of the upper and lower ends of the synchronous shaft 310 being opposite, which would prevent the second frame 200 from being pushed or pulled.

[0063] Please combine Figure 4 See Figure 5 In 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 synchronous shaft 310 and rotates with the rotation of the synchronous shaft 310. The transmission assembly 430 is located between the switch assembly 410 and the ratchet 420, with its two ends connected to the switch assembly 410 and the ratchet 420, respectively. This allows the user to control the rotation of the ratchet 420 through the switch assembly 410 and the transmission assembly 430, thereby controlling the synchronous shaft 310 to achieve unidirectional rotation, achieving stepless control over the opening direction and degree of the second frame 200.

[0064] In a specific implementation, the switch assembly 410 includes a handle 411, a switch element 412, and a resilient element 413. The handle 411 is fixedly mounted on the second frame 200. The handle 411 has an internal cavity and a hole on one side wall. The switch element 412 is movably mounted inside the handle 411 and extends out of the handle 411 through the hole. One end of the resilient element 413 abuts against the inner wall of the handle 411, and the other end abuts against the switch element 412, thereby pressing the switch element 412 against the handle 411. When the user presses the switch element 412, the resilient element 413 contracts; when the user releases the pressure, the resilient element 413 returns to its original position, pushing the switch element 412 back to its original position and pressing it against the handle 411.

[0065] Understandably, in order to prevent the switch 412 from falling off, the side of the switch 412 facing the elastic member 413 has a side skirt, the diameter of which is larger than the hole on the handle 411, so that the switch 412 is securely and movably mounted in the handle 411.

[0066] The ratchet teeth on ratchet 420 are tilted to one side, giving it a unidirectional rotation function (a conventional technique). This allows the user to steplessly control the opening direction and degree of the second frame 200, eliminating potential safety hazards to some extent. It should be noted that the tilt direction of the ratchet teeth in ratchet 420 should be considered in conjunction with the rotation direction of the synchronous shaft 310 and the position of the coaxial rack 320. This ensures that the unidirectional rotation direction of ratchet 420 is the direction in which the second frame 200 pulls out the screen 510 to form a screen window, achieving the effect that after the screen 510 is pulled out, the second frame 200 cannot be pushed in the opposite direction under normal conditions. Simultaneously, stepless control and adjustment of the opening degree are achieved.

[0067] Please combine Figure 5 See Figure 6 , Figure 7 The transmission assembly 430 includes a first transmission member 431, a second transmission member 432, and a locking member 433. The first transmission member 431 has 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. The end of the locking member 433 away from the third transmission groove 4313 is movably connected to a ratchet 420.

[0068] Furthermore, the second transmission member 432 has a transmission through hole 4321. A transmission part 4322 is located within the transmission through hole 4321. The transmission part 4321 is movably connected to the second transmission groove 4312. Preferably, the first transmission member 431 is L-shaped, meaning the first transmission groove 4311 and the second transmission groove 4312 are on the same plane, and the third transmission member 4313 is perpendicular to the first transmission groove 4311 and the second transmission groove 4312. This redirects the force applied by the user to the switch member 412, controls the locking member 433 to restrict or release the ratchet 420, thereby controlling the opening direction and degree of the second frame 200.

[0069] In practice, since the ratchet 420 has a unidirectional rotation function (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 to pull out the screen 510 to form a screen window. When it is necessary to close the screen window, the user needs to press the switch 412 to move the switch 412 horizontally to the left. The first transmission groove 4311 drives the first transmission member 431 to rotate around the first transmission groove 4312 and the transmission part 4322 as fulcrums, so that the third transmission groove 4313 rotates downward synchronously, thereby driving the locking member 433 to move downward, releasing the ratchet 420, so that the ratchet 420 can rotate counterclockwise, thereby pushing the second frame 200 to retract the screen 510 into the screen box 500, completing the closing of the screen window.

[0070] It is understood that the transmission and rotation directions in the above embodiments are only for combination Figure 7 The explanation of the structure, function, and operation of the locking mechanism 400 should not be interpreted as a restriction on the direction of transmission or rotation.

[0071] like Figure 8-12 As shown, in some embodiments, the locking mechanism 400 includes:

[0072] Synchronizing element 10 is disposed on the synchronous shaft 310 and rotates synchronously with the synchronous shaft 310. The synchronizing element 10 has a first mating part 11.

[0073] A switch component 20 is movably disposed on the second frame 200. The switch component 20 has a second mating part 21, and the first mating part 11 and the second mating part 21 are adapted to each other.

[0074] Wherein, when the first mating part 11 and the second mating part 21 are in mutual cooperation, the switching component 20 restricts the synchronous member 10 from rotating in the opposite direction;

[0075] When the first mating part 11 and the second mating part 21 are separated, the synchronizing member 10 can rotate freely relative to the switching member 20.

[0076] In this embodiment, the synchronizing element 10 can be the same ratchet as in the above embodiment, with unidirectional inclined teeth, allowing unidirectional rotation and preventing reverse rotation. To facilitate adaptation of the synchronizing element 10, limiting elements can also be provided on both sides of the synchronizing element 10. The limiting elements can rotate with the synchronizing shaft 310 or not. One side of each limiting element abuts against the synchronizing element 10, forming a structure where the limiting elements on both sides abut against the synchronizing element 10. Two bearings are also provided. The outer ring of the bearing is mounted on the second frame 200, and the inner ring of the bearing is connected to the synchronizing shaft 310. The two bearings are respectively provided on both sides of the synchronizing element 10, forming a structure where one side of a limiting element abuts against one side of the synchronizing element 10, and the other side of the limiting element abuts against the bearing, and one side of the other limiting element abuts against the other side of the synchronizing element 10, and the other side of the limiting element abuts against the bearing. This structure restricts the synchronizing element 10 during use, preventing it from moving along the axial direction of the synchronizing shaft 310.

[0077] In some embodiments, a mounting box may also be configured, which may include an upper box and a lower box. The mounting box can be mounted on the second frame 200 by means of bolts or snap-fit. The mounting box has a receiving cavity and a longitudinally communicating opening. The receiving cavity is used to accommodate the synchronizing member 10, the bearing, and the limiting member. The receiving cavity has a mounting groove, in which the outer ring of the bearing is embedded and mounted to prevent the bearing from moving along the axial direction of the synchronizing shaft 310.

[0078] The first mating part 11 on the synchronizing element 10 can be a tooth on the ratchet or a groove on the ratchet.

[0079] The switch component 20 can move relative to the second frame 200 along the axial direction of the synchronous shaft 310. During the movement, it drives the second mating part 21 on it to move. The second mating part 21 can be a groove or a protrusion provided on the switch component 20.

[0080] When the first mating member is a ratchet tooth, the second mating part 21 can be a groove. When the tooth of the first mating member enters the groove of the second mating part 21, the reverse rotation of the synchronizing member 10 is restricted, and the synchronizing shaft 310 cannot be reversed, thus restricting the backward movement of the second frame 200.

[0081] When the first mating part is a ratchet groove, the second mating part 21 can be a protrusion. When the protrusion of the second mating part enters the groove of the first mating part 11, it restricts the reversal of the synchronizing member 10, so that the synchronizing shaft 310 cannot reverse, thus restricting the movement of the second frame 200.

[0082] In this embodiment, when the switch component 20 is not pushed, the first mating part 11 and the second mating part 21 are in a mating state. When mating, the synchronizing member 10 cannot rotate in the opposite direction, and the opposite synchronizing shaft 310 can only rotate in the forward direction and cannot rotate in the reverse direction, so that the second frame 200 can only move in a single direction during the pulling process, such as moving to the left, but cannot move to the right.

[0083] In this embodiment, when the switch component 20 is pushed, the first mating part 11 and the second mating part 21 are in a separated state. When separated, the synchronizing member 10 can rotate freely in both directions, and the corresponding synchronizing 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 allowing the position of the second frame 200 relative to the first frame 100 to be freely adjusted, that is, the position of the screen window can be adjusted or the screen window can be retracted.

[0084] In this embodiment, a guide groove may be provided on the second frame 200, and the extension direction of the guide groove is the axial direction of the synchronous shaft 310. The switch component 20 may be provided on the guide groove, thereby realizing movement relative to the second frame 200.

[0085] In this embodiment, the switch component 20 is restricted to the position where the first mating part 11 and the second mating part 21 are engaged with each other. The switch component 20 restricts the synchronous member 10 and the synchronous shaft 310 from rotating in the opposite direction. This allows the door and window to be continuously locked because the synchronous shaft 310 cannot be reversed when the second frame 200 is pulled to move the screen. By pushing the switch component 20, the synchronous shaft 310 can be reversed, thereby adjusting the position of the screen.

[0086] In some embodiments, the locking mechanism 400 further includes:

[0087] The spring 30 has one end in contact with the switch component 20 and the other end in contact with the second frame 200 to provide a force to make the first mating part 11 and the second mating part 21 cooperate with each other. When an external force pushes the switch component 20 to move relative to the second frame 200, the first mating part 11 and the second mating part 21 separate.

[0088] In this embodiment, one end of the spring 30 can be embedded into and contact the switch component 20, so that one end of the spring 30 is fixed to the switch component 20, or one end of the spring 30 can abut against the switch component 20; similarly, the other end of the spring 30 can be embedded into and contact the second frame 200, so that one end of the spring 30 is fixed to the second frame 200, or one end of the spring 30 can abut against the second frame 200; so that 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 20 can move together. The two frames 200 together compress the spring 30, while the switch component 20 does not restrict the synchronizing member 10 from rotating with the synchronizing shaft 310. However, the compressed spring 30 will exert a force on the switch component 20, giving it an outward force. Under this force, if the switch component 20 is released, the force of the spring 30 can move the second mating part 21 on the switch component 20, thereby moving the switch component 20 to a position where the first mating part 11 and the second mating part 21 are engaged, thus restricting the synchronizing member 10 and the synchronizing shaft 310 from rotating in the opposite direction.

[0089] In this embodiment, the external force can be manually applied, or it can be achieved by setting up a servo motor or motor, which outputs force to move the switch component 20, thereby automatically adjusting the switch component 20 and controlling its function.

[0090] The spring 30 in this embodiment can restrict the switch component 20 to the position where the first mating part 11 and the second mating part 21 are engaged. The switch component 20 restricts the synchronous member 10 and the synchronous shaft 310 from rotating in the opposite direction. As a result, when the second frame 200 is pulled to move the screen, the synchronous shaft 310 cannot be reversed, thus realizing the stepless locking function of the door and window. By pushing the switch component 20, the synchronous shaft 310 can be reversed, thereby pulling the screen back to the desired position.

[0091] In some embodiments, the switching component 20 includes:

[0092] The first movable component 22 is movable relative to the second frame 200;

[0093] The second moving part 24 is connected to the first moving part 22 and can move with the first moving part 22. The second mating part 21 is located on the second moving part 24 and has a receiving cavity 23. The spring 30 is located in the receiving cavity 23 and one end acts on the cavity wall of the receiving cavity 23.

[0094] In this embodiment, the first movable member 22 can be mounted on the second frame 200 via a slot or track, allowing the second movable member 24 to move relative to the second frame 200. At least a portion of the first movable member 22 is located outside the second frame 200 to facilitate operation by the operator. Alternatively, the first movable member 22 can be located inside the second frame 200, allowing the operator to push it with their hand or fingers.

[0095] The second movable member 24 and the first movable member 22 can be connected by bolts or by snap-fit. Specifically, the first movable member 22 has a protrusion, and the second movable member 24 has a groove. The protrusion is inserted into the groove so that the second movable member 24 can move as the first movable member 22 moves. At least a portion of the first movable member 22 is located outside the second frame 200, and the second movable member 24 can be completely hidden inside the second frame 200.

[0096] The second moving part 24 can be arranged in parallel with the synchronous shaft 310, and the second mating part 21 is located on the side of the second moving part 24 close to the synchronous shaft 310.

[0097] The second mating part 21 is located on the second moving part 24. During the process of the first moving part 22 moving and driving the second moving part 24 to move, the second mating part 21 located on the second moving part 24 is driven, thereby enabling control of whether the synchronizing part 10 can reverse.

[0098] The second movable member 24 has a receiving cavity 23 at its middle position, into which the spring 30 can be inserted. 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 that extends into the receiving cavity 23.

[0099] In some embodiments, the first movable member 22 has a clearance cavity, and the locking mechanism further comprises:

[0100] The first connector 41 is disposed in the receiving cavity 23, and the other end of the spring 30 acts on the first connector 41;

[0101] The second connecting member 42 is disposed between the first moving member 22 and the second moving member 24, and has a limiting groove, which is used to limit the movement range of the first moving member 22.

[0102] The third connector 43 is disposed on the side of the first movable member 22 away from the second connector 42, and has a connecting groove through which the first movable member 22 passes and can move relative to the third connector 43;

[0103] Fastener 44 passes through the third connector 43, the clearance cavity, the second connector 42, the second frame 200, and the first connector 41 to connect the third connector 43, the second connector 42, the second frame 200, and the first connector 41.

[0104] In this embodiment, the fastener 44 can be a bolt or screw, the first connector 41 can move within the receiving cavity 23, and the other end of the spring 30 abuts against the first connector 41. When the second moving member 24 moves, since the first connector 41 is fixed to the second frame 200 by the fastener 44, the second moving member 24 moves relative to the first connector 41, so that the spring 30 between the first connector 41 and the second moving member 24 is compressed.

[0105] The first connector 41, the second connector 42, and the third connector 43 can all be part of the second frame 200. The second connector 42 has a limiting groove, which makes the first moving member 22 have a protrusion. The protrusion passes through the limiting groove and inserts into the groove of the second moving member 24. The limiting groove can limit the movement of the protrusion, thereby limiting the movement of the first moving member 22 to a certain area.

[0106] The first moving part 22 is provided with a relief cavity, which allows the fastener 44 to move through the first relief cavity. At the same time, the first relief cavity can also play a limiting role to prevent the first moving part 22 from moving too much.

[0107] The third connector 43 is provided with a connecting groove, which is arranged along the axial direction of the synchronous shaft 310, forming a track-like structure, so that the first moving member 22 can be arranged on the connecting groove, and the left and right movement of the first moving member 22 is limited by the connecting groove.

[0108] like Figure 13 As shown, in some other preferred embodiments, the door and window structure with a synchronous shaft and stepless locking function also includes a third frame 800. The third frame 800 is movably mounted on the first frame 100, and the third frame 800 and the second frame 200 are arranged opposite each other. In specific implementation, the third frame 800 can be installed opposite the second frame 200 according to actual installation needs. At the same time, two screen boxes 500 are designed, with screens connected to the second frame 200 and the third frame 800 respectively. Users can push and pull the second frame 200 and the third frame 800 towards the middle at the same time, so that the second frame 200 connects to the third frame 800 to form a double-opening screen window, which is convenient for use with wider doors and windows, improving application scenarios and adaptability.

[0109] In some preferred embodiments, the door and window structure with a synchronous shaft and stepless locking function also includes a guardrail 900. The guardrail 900 is connected to the first frame 100. The guardrail 900 can improve strength and safety, and eliminate safety hazards.

[0110] In summary, the door and window structure with a synchronous shaft and stepless locking function provided by this utility model, compared with the prior art, ensures that the synchronous shaft is always in a vertical state during the pushing and pulling of the second frame by setting a coaxial mechanism and a locking mechanism on the second frame. This ensures that the upper and lower ends of the second frame move at the same distance, avoiding angular deviation caused by inconsistent movement distances between the upper and lower ends of the second frame, which could lead to jamming or jerking of the second frame 200 during pushing and pulling. 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.

[0111] Although this document frequently uses terms such as first frame, second frame, and mesh box, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0112] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this utility model can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A door and window structure with a synchronous shaft and stepless locking function, characterized in that, include: First frame; A second frame is disposed on the first frame, and both ends of the second frame are movably connected to the first frame; A coaxial mechanism comprising a synchronous shaft and two coaxial racks, wherein the synchronous shaft is disposed within a second frame, and both ends of the synchronous shaft extend out of the second frame and are movably connected to the first frame; the two coaxial racks are disposed opposite to each other on the first frame, and both ends of the synchronous shaft are movably connected to the two coaxial racks respectively. A locking mechanism is provided on the second frame and is movably connected to the synchronous shaft.

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

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

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

5. The door and window structure with synchronous shaft and stepless locking function according to claim 4, characterized in that, The switch assembly includes a handle, a switch element, and a resilient element. The handle is disposed on the second frame, the switch element is movably disposed on the handle, one end of the resilient element abuts against the inner wall of the handle, and the other end of the resilient element abuts against the switch element.

6. The door and window structure with synchronous shaft and stepless locking function according to claim 5, 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 synchronous shaft and stepless locking function according to claim 1, characterized in that, The locking mechanism includes: A synchronizing element is disposed on the synchronizing shaft and rotates synchronously with the synchronizing shaft; the synchronizing element has a first mating part. A switch component is movably disposed on the second frame, the switch component having a second mating part, and the first mating part and the second mating part being adapted to each other; Wherein, when the first mating part and the second mating part are in mutual cooperation, the switching component restricts the synchronous member from rotating in the opposite direction; When the first mating part and the second mating part are separated, the synchronizing member can rotate freely relative to the switching member.

8. The door and window structure with synchronous shaft and stepless locking function according to claim 7, characterized in that, The locking mechanism further includes: A spring, with one end in contact with the switch component and the other end in contact with the second frame, provides a force to engage the first and second mating parts. When an external force pushes the switch component to move relative to the second frame, the first and second mating parts separate.

9. The door and window structure with synchronous shaft and stepless locking function according to claim 8, characterized in that, The switching component includes: The first movable component is movable relative to the second frame; The second movable member is connected to the first movable member and can move with the first movable member. The second mating part is located on the second movable member and has a receiving cavity. The spring is located in the receiving cavity and one end acts on the cavity wall of the receiving cavity.

10. The door and window structure with synchronous shaft and stepless locking function according to claim 9, characterized in that, It also includes a locking mechanism, wherein the first moving member has a clearance cavity, and the locking mechanism further comprises: A first connector is disposed within the receiving cavity, and the other end of the spring acts on the first connector; The second connecting member is disposed between the first moving member and the second moving member, and has a limiting groove, which is used to limit the movement range of the first moving member; The third connector is disposed on the side of the first movable member away from the second connector, and has a connecting groove through which the first movable member passes and is movable relative to the third connector. Fasteners pass through the third connector, the clearance cavity, the second connector, the second frame, and the first connector to connect the third connector, the second connector, the second frame, and the first connector.

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