Transmission box and overhead sliding door and window

Abstract

The application provides a transmission box and a lifting sliding door and window, which comprises a shell, a driving mechanism, a lifting frame and a triggering mechanism, the lifting frame is in sliding connection with the shell, the driving mechanism is connected with the shell, the driving mechanism is in transmission connection with the lifting frame, the triggering mechanism is connected with the shell, the triggering mechanism is in transmission connection with the lifting frame, the driving mechanism is used for driving the lifting frame to move along the axial direction of the shell, after the lifting frame moves to a preset position relative to the shell, the triggering mechanism makes the lifting frame be in a locked state relative to the shell, and the triggering mechanism is in a waiting triggering state, after the triggering mechanism is triggered by external force, the triggering mechanism releases the locked state of the lifting frame relative to the shell; the transmission box has the advantages of reasonable structure and improved use convenience of the lifting sliding door and window.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hardware, and particularly relates to a transmission box and a lifting type sliding door and window. BACKGROUND

[0002] A door or a window is a basic component of a modern building, and is classified according to the opening mode of the door or window. The door or window is mainly divided into a flat opening type door or window and a sliding type door or window. Among them, the sliding type door or window is mainly composed of a door or window leaf and a rail, that is, the door or window leaf moves back and forth along the rail to realize the opening or closing of the door or window. At the same time, since it is flexible to open, it can form a partition in space and will not occupy extra space when it is opened, so the sliding type door or window is a relatively more commonly used type of door or window, for example, used between a balcony and a living room to form a partition, and for example, used between a kitchen and a dining room.

[0003] However, the sliding type door or window in the prior art has certain inconvenience in use. Specifically, in order to facilitate the sliding door to be fixed or positioned on the rail at any time as needed during use, for example, to prevent young children in the home from entering and leaving the balcony at will under the condition of ensuring basic ventilation, a lifting type hardware appears on the market, and the main working principle thereof is that the pulley block on the door or window can be extended or retracted by a certain distance relative to the leaf body of the door or window, that is, the leaf body of the door or window can be lifted or lowered by a certain distance relative to the rail, thereby forming a lifting type sliding door or window. Further, when the pulley block is retracted relative to the rail or the sliding groove, that is, the leaf body of the door or window falls (descends) on the rail, so that the leaf body of the door or window forms static friction with the rail, thereby positioning the leaf body of the door or window on the fixed rail or on the rail, for example, a European standard C-slot lifting sliding door and window hardware disclosed in application No. 201720561394.7. However, during the closing process of the door or window, especially during the closing process of a heavy lifting type sliding door or window with relatively large inertia, since the lifting and lowering timing of the pulley block cannot be accurately controlled, or the moving speed of the door or window leaf body cannot be accurately controlled, the door or window leaf body often collides with the outer frame and rebounds, thereby failing to be smoothly closed, and thus the lifting type sliding door or window in the prior art has the above-mentioned problem of inconvenience in use. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a transmission box with a reasonable structure, which can improve the convenience of use of a lifting type sliding door or window.

[0005] In order to solve the above technical problems, the technical solution used by the present application is:

[0006] A transmission box comprises a housing, a driving mechanism, a lifting frame and a trigger mechanism, the lifting frame is in sliding connection with the housing, the driving mechanism is connected with the housing, and the driving mechanism is in transmission connection with the lifting frame, the trigger mechanism is connected with the housing, and the trigger mechanism is in transmission connection with the lifting frame, the driving mechanism is used to drive the lifting frame to move along the axial direction of the housing, after the lifting frame moves from a first position to a second position relative to the housing, the trigger mechanism makes the lifting frame be in a locked state relative to the housing, and the trigger mechanism is in a state of being ready to be triggered, after the trigger mechanism is triggered by an external force, the trigger mechanism releases the locking state of the lifting frame relative to the housing, and the lifting frame moves from the second position to the first position relative to the housing.

[0007] As a further improvement of the transmission box, the driving mechanism comprises a pull rod and a driving wheel, the driving wheel is in rotational connection with the housing, the first end of the pull rod is connected with the lifting frame, the second end of the pull rod is hinged with the driving wheel, and the second end of the pull rod deviates from the axis of the driving wheel.

[0008] As a further improvement of the transmission box, the driving mechanism further comprises a power assisting mechanism, and the power assisting mechanism is in transmission connection with the lifting frame, the power assisting mechanism is used to reduce the initial input torque of the driving mechanism.

[0009] As a further improvement of the transmission box, the power assisting mechanism comprises a guide wheel and a first protrusion, one end of the first protrusion is connected with the driving wheel, the other end of the first protrusion is a lifting end, the end face of the lifting end is a bevel or an arc face, one end of the bevel or the arc face in the length direction forms a smooth transition with the peripheral surface of the driving wheel, the other end of the bevel or the arc face deviates from the axis of the driving wheel, and the bevel gradually rises relative to the radial direction of the driving wheel;

[0010] The guide wheel is in rotational connection with the lifting frame, and the guide wheel abuts against the end face of the lifting end;

[0011] The height from the axis of the guide wheel to the axis of the driving wheel is less than the height from the axis of the driving wheel to the first end of the pull rod.

[0012] As a further improvement of the transmission box, after the driving wheel rotates relative to the housing by more than a preset angle, the guide wheel and the lifting end are separated from each other.

[0013] As a further improvement of the transmission box, the trigger mechanism comprises a locking assembly and an unlocking assembly, the locking assembly is connected with the housing, and the locking assembly cooperates with the lifting frame to make the lifting frame be in a locked state relative to the housing;

[0014] The unlocking assembly is connected with the lifting frame, and the unlocking assembly is in transmission connection with the locking assembly, and the unlocking assembly is used for canceling the locking state of the locking assembly on the lifting frame.

[0015] As a further improvement of the transmission box, the locking assembly comprises a first guide column, a first sliding block, a first return spring, a limiting block, a first protruding block, a first guide groove and a second guide groove.

[0016] The first guide column is fixedly connected with the shell, the first sliding block is connected with the first guide column, and the first sliding block can reciprocate along the axial direction of the first guide column, one end of the first return spring is in abutment with the first sliding block, and the other end is in abutment with the shell, the limiting block is fixedly connected with the first sliding block, the first protruding block is located at one end of the first sliding block, one end of the first protruding block is fixed with the first sliding block, and the other end is a free end, and the first protruding block drives the first sliding block to move along the axial direction of the first guide column after being subjected to an external force.

[0017] The first guide groove and the second guide groove are both formed in the lifting frame, the first guide groove and the second guide groove form an included angle, and one end of the first guide groove and the second guide groove is in communication, the limiting block can move along the first guide groove or the second guide groove, when the lifting frame is locked with the shell, the limiting block moves from the second guide groove into the first guide groove, and after the lifting frame is unlocked with the shell, the limiting block moves from the first guide groove into the second guide groove.

[0018] As a further improvement of the transmission box, the unlocking assembly comprises a second guide column, a second sliding block, a trigger block, a second return spring, a third return spring and a first shifting block.

[0019] The second guide column is fixedly connected with the lifting frame, the second sliding block is connected with the second guide column, and the second sliding block can reciprocate along the axial direction of the second guide column, one end of the second return spring is in abutment with the second sliding block, and the other end is in abutment with the lifting frame, one end of the trigger block is fixedly connected with the second sliding block, and the other end is a free end, and the second return spring is used for pushing the second sliding block and making the free end of the trigger block protrude out of the shell.

[0020] The first dial block is located at one end of the second sliding block, the first dial block is in sliding connection with the second sliding block, one end of the third reset spring is in abutment with the first dial block, and the other end is in abutment with the second sliding block, the third reset spring is used for making the end of the first dial block extend out of the second sliding block, and the first dial block is used for dialing the first convex block and driving the first sliding block to move along the axial direction of the first guide column.

[0021] As a further improvement of the transmission box, when the lifting frame is in the locked state relative to the shell, the end of the first dial block is in abutment with the free end of the first convex block, and the trigger block is located in the shell;

[0022] Alternatively, the trigger block extends out of the shell, the end of the first dial block sweeps across the free end of the first convex block relative to the radial direction of the first dial block, the end of the first dial block extends out of the second sliding block, and one side of the first dial block corresponds to one side of the first convex block.

[0023] As a further improvement of the transmission box, the driving mechanism is further provided with a reset assembly, the reset assembly is installed on the lifting frame, and the reset assembly is in transmission connection with the driving mechanism, the driving mechanism is used for driving and resetting the driving mechanism after the lifting frame is in the locked state relative to the shell.

[0024] As a further improvement of the transmission box, the reset assembly comprises a rack and a fourth reset spring, the rack is in sliding connection with the shell, and the rack can move along the axial direction of the lifting frame and / or the shell, one end of the fourth reset spring is in abutment with the lifting frame, and the other end is in abutment with the rack, the driving wheel of the driving mechanism is further provided with a gear ring, and the gear ring is in engagement with the rack;

[0025] The lifting frame is further provided with a third guide groove, the first end of the pull rod of the driving mechanism is further provided with a pull rod shaft, the pull rod shaft is arranged in the third guide groove, and after the driving mechanism is reset, the pull rod shaft moves from the first end of the third guide groove to the second end of the third guide groove.

[0026] As a further improvement of the transmission box, the driving mechanism is further provided with a driving wheel locking mechanism, the driving mechanism drives the lifting frame to move along the axial direction of the shell, makes the lifting frame be in the locked state relative to the shell (through the trigger mechanism), and the reset assembly resets the driving mechanism, the driving wheel locking mechanism locks the driving wheel, and after the trigger mechanism releases the locking of the lifting frame, the driving wheel locking mechanism releases the rotational locking of the driving wheel.

[0027] As a further improvement of the transmission box, the driving wheel locking mechanism comprises a rocker, a fifth return spring and a guide, the rocker is hinged to the lifting frame, one end of the fifth return spring is in abutment with the rocker and the other end is in abutment with the lifting frame, and the guide is located at the first end of the rocker and the end surface of the first end of the rocker is inclinedly arranged;

[0028] When the lifting frame is in the locked state relative to the housing, the fifth return spring pushes the rocker to deflect relative to the housing, so that the second end of the rocker corresponds to the end of the rack, the rack is in the locked state relative to the housing, and the end surface of the first end of the rocker corresponds to the guide;

[0029] When the lifting frame is triggered and unlocked relative to the housing and the lifting frame is reset relative to the housing, the guide pushes and deflects the rocker relative to the housing, so that the second end of the rocker is separated from the end of the rack.

[0030] A lifting type sliding door and window comprises a frame, a sash, a pulley assembly and a transmission box as described above, the sash is installed in the frame, the transmission box and the pulley assembly are both installed on the sash, and the transmission box is in transmission connection with the pulley assembly, the frame is further provided with a track, the pulley assembly is connected with the track and can move along the track, and the transmission box is used to drive the pulley assembly to extend relative to the sash, so that the sash is lifted from the track and the sash can move relative to the track;

[0031] Alternatively, the triggering mechanism of the transmission box releases the lifting state of the pulley assembly relative to the sash, so that the sash falls onto the track and the sash forms static friction with the track.

[0032] The beneficial effects of the present application relative to the prior art mainly lie in that: by arranging a triggering mechanism on the transmission box, further, when the transmission box is installed on the sash of the door and window and in the process of closing the door and window, the edge of the sash of the door and window touches the edge of the outer frame to press the triggering mechanism, or the triggering mechanism is manually pressed, that is, the triggering mechanism is started, and when the triggering mechanism is started, the extension state of the pulley assembly relative to the sash of the door and window is released, so that the sash of the door and window forms static friction with the outer frame or the track arranged in the outer frame, that is, the rebound of the sash relative to the edge of the outer frame due to the impact of the sash with the outer frame is avoided, and the convenience of using the transmission box and the sliding door and window is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] The above and other objects, features and advantages of the present application will become more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: Like reference numerals in the figures denote like elements, and the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the present application.

[0034] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the transmission box in the present application;

[0035] Figure 2 Fig. 2 is a schematic diagram of the state in which the trigger block of the transmission box in the present application extends outside the housing;

[0036] Figure 3 Fig. 3 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed, the lifting frame is in the locked state relative to the housing, and the trigger block is in the state of being ready to be triggered;

[0037] Figure 4 Fig. 4 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed, the lifting frame is in the unlocked state relative to the housing;

[0038] Figure 5 Fig. 5 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed and the lifting frame is removed, the lifting frame is in the locked state;

[0039] Figure 6 Fig. 6 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed and the lifting frame is removed, the driving mechanism is reset, and the trigger block is in the state of being triggered;

[0040] Figure 7 Fig. 7 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed and the lifting frame is removed, the driving mechanism is reset, and the trigger block is in the state of being ready to be triggered;

[0041] Figure 8 Fig. 8 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed and the lifting frame is removed, the lifting frame is in the unlocked state, and the power assisting mechanism is in the state of being triggered;

[0042] Figure 9 Fig. 9 is a schematic diagram of the state in which, after the housing of the transmission box in the present application is removed and the lifting frame is removed, the lifting frame is in the unlocked state, and the trigger block is in the state of being contracted. DETAILED DESCRIPTION

[0043] The technical solutions of the present application will be described in further detail below in combination with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it. However, the embodiments are not intended to limit the present application. In the embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated as a whole, or a middle element can exist at the same time. The terms "mount", "one end", "the other end" and the like used in the present application are only for the purpose of illustration.

[0045] As Figures 1-9As shown, the embodiment provides a transmission box, which comprises a shell 22, a driving mechanism, a lifting frame 23 and a trigger mechanism; the lifting frame 23 is in sliding connection with the shell 22, the driving mechanism is connected with the shell 22, and the driving mechanism is in transmission connection with the lifting frame 23, the trigger mechanism is connected with the shell 22, and the trigger mechanism is in transmission connection with the lifting frame 23, the driving mechanism is used to drive the lifting frame 23 to move along the axial direction or the length direction of the shell 22, or in other words, the lifting frame 23 moves up and down relative to the shell 22. Of course, the driving mechanism is also connected with a square shaft and a handle matched with the square shaft, that is, the user applies a torque to the square shaft through the handle, and then the driving mechanism finally drives the lifting frame 23 to move relative to the shell 22; according to the viewing angle of the views in the embodiment, the lifting frame 23 moves upward relative to the shell 22. Further, after the lifting frame 23 moves to a preset position relative to the shell 22, or in other words, moves from a first position to a second position, that is, the lifting frame 23 moves to the upper dead point relative to the shell 22, the trigger mechanism is activated and the lifting frame 23 is in a locked state relative to the shell 22, that is, the lifting frame 23 is locked by the trigger mechanism so that it cannot move downward relative to the shell 22; further, the purpose of the upward movement of the lifting frame 23 is to drive the pulley assembly installed at the bottom of the fan body to work, so that the pulley in the pulley assembly extends relative to the fan body (the fan body is in a lifted state relative to the frame body) and forms a walking part of the fan body in the frame, that is, the fan body can move freely along the frame. Further, when the trigger mechanism is activated, it is in a state of being triggered, and when the trigger mechanism is triggered by external force, the trigger mechanism releases the locking state of the lifting frame 23 relative to the shell 22, and at this time the lifting frame 23 moves downward along the shell 22, or in other words, the lifting frame 23 moves from the second position to the first position along the shell 22, that is, the lifting frame 23 is reset.

[0046] Specifically, when the transmission box is installed on the lifting sliding door and window, the door and window panel is in the process of closing, the side of the door and window panel touches or collides with the frame, and then the trigger mechanism is started and the locking state of the lifting frame 23 is released; further, the gravity of the door and window itself will be conducted in the opposite direction to the lifting frame 23 through the pulley, that is, the lifting frame 23 will move downward along the shell 22 at this time, or the lifting frame 23 is reset relative to the shell 22 at this time. Further, since the lifting frame 23 loses control of the pulley assembly, it will fall back to the bottom of the frame or the track at the bottom of the frame under the action of its own gravity, so that the panel and the frame or the track form a static friction, that is, it avoids the rebound of the panel relative to the frame caused by the impact of the panel on the outer frame, that is, it makes the door and window cannot be closed smoothly, thereby improving the convenience of using the sliding door and window. Further, when the panel of the door and window needs to be positioned at a specific position of the frame, the trigger mechanism can be directly pressed and started by hand at this time, so that the panel falls on the frame and the panel cannot move freely along the frame; for example, when there is a child in the room, the opening of the door and window needs to be maintained for safety consideration, at this time the above operation can be performed.

[0047] As Figure 5 , Figure 8 , Figure 9As shown in the preferred embodiment, the driving mechanism comprises a pull rod 24 and a driving wheel 25, the driving wheel 25 penetrates through and is rotationally connected with the shell 22, that is, the driving wheel 25 can rotate relative to the shell 22. Further, the driving wheel 25 is also provided with a square shaft hole for connecting a square shaft, and the handle is connected to the square shaft, that is, a torque is applied to the square shaft through the handle to drive the transmission box to perform corresponding actions through the driving mechanism; of course, in addition to the square shaft (the cross section of the shaft is rectangular), other types of shafts such as spline shafts and triangular shafts can also be used as long as the torque of the handle can be transmitted to the transmission box. The first end of the pull rod 24 is connected with the lifting frame 23, and the pull rod 24 is used to transmit the power of the driving wheel 25 and pull the lifting frame 23 to move relative to the shell 22; the second end of the pull rod 24 is hingedly connected with the driving wheel 25 through a pin shaft, and the second end of the pull rod 24 deviates from the axis of the driving wheel 25 or the hinge point of the pull rod 24 and the driving wheel 25 deviates from the rotation axis of the driving wheel. When the driving wheel 25 rotates, the hinge point of the pull rod 24 and the driving wheel 25 revolves relative to the rotation axis point of the driving wheel 25, thereby driving the lifting frame 23 to move upward relative to the shell 22. Further, the lifting frame 23 is also provided with one or more limiting holes 49, and the shell 22 is provided with a second limiting piece 50 which penetrates through the lifting frame 23 and is fixed with the shell 22 by riveting or welding or bolt fastening. The limiting hole 49 is strip-shaped, and the axis of the limiting hole 49 is parallel to the axis of the lifting frame 23. The limiting hole 49 and the second limiting piece 50 which cooperates therewith are used to limit the up-down movement stroke of the lifting frame 23 relative to the shell 22.

[0048] As Figure 5 、 Figure 8 、 Figure 9 As shown in the preferred embodiment, the driving mechanism further comprises a power assisting mechanism, and the power assisting mechanism is in transmission connection with the lifting frame 23. The power assisting mechanism is used to reduce the initial input torque of the driving mechanism. Specifically, the power assisting mechanism comprises a guide wheel 26 and a first protrusion 27. One end of the first protrusion 27 is integrally formed with the driving wheel 25, and the other end of the first protrusion 27 is a lifting end. The end face of the lifting end is a bevel or an arc face. One end of the bevel or the arc face in the length direction forms a smooth transition with the peripheral surface of the driving wheel 25. The peripheral surface refers to the circumferential surface of the driving wheel 25. The other end of the bevel or the arc face extends away from the axis of the driving wheel 25. The bevel or the arc face gradually rises relative to the radial direction (the longitudinal direction in the figure) of the driving wheel 25. Further, the guide wheel 26 is rotationally connected with the lifting frame 23 through a pin shaft, and the guide wheel 26 abuts against the end face of the lifting end of the first protrusion 27.

[0049] Further, in the axial direction relative to the housing 22, the lateral or horizontal distance from the shaft center of the guide wheel 26 to the shaft center of the drive wheel 25 is less than the lateral or horizontal distance from the shaft center of the drive wheel 25 to the second end of the pull rod 24; the transmission box is mainly used to control the movement of the pulley assembly relative to the fan body during use, that is, to control and enable the fan body to be lifted to a certain height relative to the track of the frame (for example, the fan body is lifted to a height of about 5MM relative to the track), so that the friction between the fan body and the track is converted from static friction (when the fan body falls on the track) to rolling friction (the pulley assembly as a walking part of the fan body). Since the transmission box needs to control and enable the fan body to be lifted or lifted to a certain distance relative to the track, the pull rod 24 needs to have a certain length base, and the weight base of the door and window fan body is often relatively large, especially for window bodies using double-layer glass; therefore, in the initial state of the door and window, it is relatively laborious to control the lifting of the fan body by the handle (a large force or torque is required), at this time, simply increasing the length of the handle (equivalent to increasing the length of the lever) to achieve labor saving when the door and window is opened, will make the length of the handle and the proportion of the door and window fan body very uncoordinated. Further, in the setting of the power assisting mechanism, the lateral distance or horizontal distance (length) from the shaft center of the guide wheel 26 to the shaft center of the drive wheel 25 is less than the lateral distance or horizontal distance (length) from the shaft center of the drive wheel 25 to the second end of the pull rod 24, that is, the cooperation of the guide wheel 26 and the first protrusion 27 is equivalent to shortening the length of the resistance arm from the shaft center of the drive wheel 25 to the second end of the pull rod 24, in other words, it is to increase the length of the power arm on the basis of the unchanged length of the handle, and further realize the labor saving operation of the transmission box.

[0050] As Figure 5 , Figure 8 , Figure 9As shown, in the preferred embodiment, the driving wheel 25 rotates relative to the housing 22 beyond a preset angle, such as 35 degrees, and the specific angle can be adjusted according to different actual needs. The guide wheel 26 and the lifting end are separated from each other. Specifically, when the driving wheel 25 rotates to a certain angle (such as 35 degrees), the height (length) from the axis of the guide wheel 26 to the axis of the driving wheel 25 is less than the distance from the axis of the driving wheel 25 to the second end of the pull rod 24, which is almost equal. That is, at this time, the lifting moment of the power-assisted mechanism (through the first protrusion 27) acting on the lifting frame 23 is almost the same as the lifting moment of the driving wheel 25 (through the pull rod 24) acting on the lifting frame 23, or reaches a balance point. That is, at this time, the power-assisted mechanism has completed its purpose of labor-saving operation. Further, with the view angle as the reference benchmark, when the lifting moment of the power-saving mechanism and the driving mechanism acting on the lifting frame 23 reaches a relative balance point, if the first protrusion 27 still needs to participate in power assistance at this time, the width of the first protrusion 27 needs to be increased to maintain the extension of the end face of the lifting end (the length of the inclined surface or arc surface), which will increase the volume of the driving wheel 25. In order to accommodate the driving wheel 25, the volume of the lifting frame 23 and the housing 22 will also be increased accordingly (the lifting frame 23 and the housing 22 need to be matched in the width direction).

[0051] As Figures 5-9 shown, in the preferred embodiment, the trigger mechanism includes a locking assembly and an unlocking assembly. The locking assembly is connected with the housing 22, and the locking assembly and the lifting frame 23 cooperate with each other to make the lifting frame 23 in a locked state relative to the housing 22. The unlocking assembly is connected with the lifting frame 23, and the unlocking assembly is in transmission connection with the locking assembly. The unlocking assembly is used to release the locking state of the lifting frame 23 by the locking assembly.

[0052] Specifically, the locking assembly comprises a first guide column 28, a first sliding block 29, a first return spring 30, a limiting block 31, a first guide slot 32, a second guide slot 33 and a second protrusion 34 arranged on the first sliding block 29, of course, the second protrusion 34 can also be directly regarded as the first sliding block 29. The first guide column 28 is fixed with the shell 22 by riveting, welding or screwing, the first sliding block 29 is in sliding connection with the first guide column 28, and the first sliding block 29 can reciprocate along the axial direction or the length direction (the transverse direction) of the first guide column 28. In the embodiment, the first guide column 28 is provided with two, and the first guide column 28 penetrates the first sliding block 29 in the transverse direction. One end of the first return spring 30 abuts against the first sliding block 29, and the other end of the first return spring 30 abuts against the shell 22. The limiting block 31 is fixed with the first sliding block 29 by welding, screwing or interference fit. The second protrusion 34 is located at the bottom end of the first sliding block 29, one end of the second protrusion 34 is fixed with the first sliding block 29, and in the embodiment, the second protrusion 34 is integrally formed with the first sliding block 29. The other end of the second protrusion 34 is a free end. After the second protrusion 34 is subjected to an external force, the first sliding block 29 is driven to move along the axial direction (the transverse direction) of the first guide column 28.

[0053] Further, the first guide slot 32 and the second guide slot 33 are both arranged on the lifting frame 23, the first guide slot 32 and the second guide slot 33 form an included angle of 90 degrees, or the axis of the first guide slot 32 and the axis of the lifting frame 23 form an included angle of 90 degrees. In the embodiment, the first guide slot 32 is arranged transversely relative to the lifting frame 23, the second guide slot 33 is arranged longitudinally relative to the lifting frame 23, and one end of the first guide slot 32 and the second guide slot 33 is communicated, that is, the first guide slot 32 and the second guide slot 33 form a straight angle shaped hole on the lifting frame 23. The limiting block 31 can move along the first guide slot 32 or the second guide slot 33. When the lifting frame 23 is locked with the shell 22, the limiting block 31 moves from the second guide slot 33 to the first guide slot 32. After the lifting frame 23 is unlocked with the shell 22, the limiting block 31 moves from the first guide slot 32 to the second guide slot 33. Specifically, since the lifting frame 23 can only move along the axial direction (up and down) of the shell 22, when the first sliding block 29 drives the limiting block 31 to move (transversely) into the first guide slot 32 of the lifting frame 23, and since the axis of the first guide slot 32 and the axis of the lifting frame 23 form an included angle of 90 degrees, at this time in the longitudinal direction, the limiting block 31 prevents and makes the lifting frame 23 unable to move downward relative to the shell 22, that is, it is locked. Further, when the first sliding block 29 drives the limiting block 31 to move (transversely) into the first guide slot 32 and the second guide slot 33 of the lifting frame 23, at this time the axis of the second guide slot 33 is parallel to the lifting frame 23 relative to the shell 22, so that the lifting frame 23 can move downward along the shell 22, that is, the lifting frame 23 is unlocked.

[0054] like Figures 5-9 As shown, in a preferred embodiment, the unlocking assembly includes a second guide post 35, a second slider 36, a trigger block 37, a second reset spring 38, a third reset spring 39, and a first lever 40. Further, the second guide post 35 is fixed to the lifting frame 23 by riveting, bolting, or welding. The second slider 36 is slidably connected to the second guide post 35, and the second slider 36 can reciprocate along the axial direction of the second guide post 35. In this embodiment, two first guide posts 28 are provided, and the second guide post 35 penetrates the second slider 36 in the transverse direction. Further, one end of the second reset spring 38 abuts against the second slider 36, and the other end abuts against the lifting frame 23. One end of the trigger block 37 is fixedly connected to the second slider 36. In this embodiment, the trigger block 37 and the second slider 36 are integrally formed, and the other end of the trigger block 37 is a free end or trigger end. The second reset spring 38 is used to push the second slider 36 and cause the free end of the trigger block 37 to extend outside the housing 22. Furthermore, the first lever 40 is located at the top of the second slider 36. Relative to the axial direction of the second slider 36, the first lever 40 is slidably connected to the second slider 36. One end of the third return spring 39 abuts against the first lever 40, and the other end abuts against the second slider 36. The third return spring 39 is used to make the end of the first lever 40 extend out of the second slider 36. The first lever 40 is used to move the first protrusion 27 and drive the first slider 29 to move along the axial or length direction of the first guide post 28.

[0055] Specifically, when the lifting frame 23 is in the locked state relative to the housing 22, the end of the first block 40 abuts against the free end of the first protrusion 27, and the trigger block 37 is located in the housing 22; when the transmission box is installed on the lifting sliding door and window, when the sash is in the closed state relative to the frame, that is, at this time, the trigger block 37 is pressed by the frame and is retracted in the housing 22; further, when the sash needs to be opened, at this time, the sash falls on the frame, that is, at this time, the sash cannot be freely moved left and right along the frame, that is, at this time, the torque needs to be input to the transmission box through the handle and finally can be lifted by the pulley assembly so that the frame is lifted relative to the sash, when the lifting state of the sash is completed, that is, the lifting frame 23 of the transmission box is locked with the housing 22, at this time, the sash can be moved through the pulley assembly. Further, with the movement of the sash (one side of the sash away from one side of the frame), at this time, the trigger block 37 is no longer pressed by the frame, and the trigger block 37 is extended out of the housing 22 under the pushing of the second return spring 38 (the second return spring 38 pushes the second sliding block 36 and drives the trigger block 37 to move). With the movement of the second sliding block 36 in the radial direction of the first block 40, the end of the first block 40 sweeps the free end of the first protrusion 27, and the end of the first block 40 is in a suspended state, at this time, under the pushing of the elastic force of the third return spring 39, the end of the first block 40 is extended upward out of the second sliding block 36, and then one side of the first block 40 corresponds to one side of the first protrusion 27; that is, at this time, the trigger block 37 is in an activated state, that is, when the trigger block 37 is pressed, the locked state of the lifting frame 23 and the housing 22 can be released, the control of the pulley assembly is released, and then the sash falls on the frame or the track of the frame.

[0056] As Figures 8-9 shown, in the preferred embodiment, a reset assembly is further arranged on the driving mechanism, the reset assembly is installed on the lifting frame 23, and the reset assembly is in transmission connection with the driving mechanism, and the reset assembly pushes the driving mechanism to reset after the driving mechanism drives the lifting frame 23 to be in the locked state relative to the housing 22. The reset assembly arranged can reset the handle that completes the door and window opening and closing operation, so as to avoid the problem that after the trigger block 37 of the transmission box is triggered and unlocked, the sash of the door and window performs reverse power output to the handle under the action of gravity, that is, drives the handle to rotate reversely, and then possibly causes the handle to hit or sprain the user's hand.

[0057] Specifically, the reset assembly comprises a rack 41 and a fourth reset spring 42, the rack 41 is in sliding connection with the shell 22, and the rack 41 can move along the axial direction or the length direction or the up-down direction of the lifting frame 23 and / or the shell 22, one end of the fourth reset spring 42 is in abutment with the lifting frame 23, and the other end is in abutment with the rack 41, the driving wheel 25 of the driving mechanism is further provided with a gear ring 43, the gear ring 43 is in engagement with the rack 41, because the rotation angle of the driving wheel 25 does not exceed 360 degrees, therefore, the gear ring 43 in the embodiment only covers part of the area (minor arc) in the circumferential direction of the driving wheel 25. Further, the lifting frame 23 is further provided with a third guide slot 45, the third guide slot 45 is arranged in the longitudinal direction, or the axis of the third guide slot 45 is consistent with the arrangement direction of the axis of the lifting frame 23; the first end of the pull rod 24 of the driving mechanism is further provided with a pull rod shaft 44, the pull rod shaft 44 is arranged in the third guide slot 45; after the driving mechanism is reset, the pull rod shaft 44 moves from the first end of the third guide slot 45 to the second end of the third guide slot 45, that is, when the locking of the lifting frame 23 is released, the lifting frame 23 moves downward along the shell 22, or, when the lifting frame 23 moves downward along the shell, the pull rod shaft 44 relative to the third guide slot 45 is a sliding process, that is, at this time, the lifting frame 23 does not drive the pull rod shaft 44 to move synchronously, that is, the rotation of the handle driven synchronously by the lifting frame 23 moving downward is avoided.

[0058] As Figures 8-9As shown, in the preferred embodiment, the driving mechanism is further provided with a driving wheel locking mechanism, when the driving mechanism drives the lifting frame 23 to move along the axial direction or length direction or up-down direction of the housing 22, (by the trigger mechanism) the lifting frame 23 is in a locked state relative to the housing 22, or the lifting frame 23 is in an unlocked state relative to the housing 22, and (after the torque applied on the handle is removed) the reset assembly pushes the driving mechanism to reset, the driving wheel locking mechanism locks the driving wheel 25; further, after the trigger mechanism releases the locking of the lifting frame 23, the driving wheel locking mechanism releases the rotational locking of the driving wheel 25. The driving wheel locking mechanism can further improve the safety of the transmission box; assuming that in the locked state of the lifting frame 23 relative to the housing 22, the handle can still be rotated, that is, the driving wheel 25 on the transmission box rotates; further, in the state of rotating the handle by a certain angle, if the lifting frame 23 is unlocked again by the trigger block 37 at this time, under the action of the gravity of the door and window leaf body, the handle will be inevitably driven to rotate in the opposite direction, which may cause the user's hand to be sprained or the handle to hit the user's body. Further, assuming that in the state of rotating the handle by a certain angle, the pull rod shaft 44 at this time will move between the two ends of the third guide groove 45, that is, the height of the pull rod shaft 44 in the longitudinal direction is increased, thereby interfering with the movement stroke of the third guide groove 45, that is, when the lifting frame 23 moves downward, it will drag the pull rod shaft 44 to move downward until the stop point, and the pull rod shaft 44 will drag the driving wheel 25 to rotate in the opposite direction through the pull rod 24.

[0059] Specifically, the driving wheel locking mechanism comprises a rocker arm 46, a fifth reset spring 47 and a guide 48. The guide 48 in this embodiment is a rotatable wheel body. The rocker arm 46 is hinged to the lifting frame 23. The fifth reset spring 47 is located on one side of the lifting frame 23. One end of the fifth reset spring 47 abuts against the rocker arm 46, and the other end abuts against the lifting frame 23. The guide 46 is located at the first end of the rocker arm 46, and the end surface of the first end of the rocker arm 46 is obliquely arranged. Further, when the lifting frame 23 is in the locked state relative to the housing 22, the fifth reset spring 47 pushes the rocker arm 46 to deflect relative to the housing 22, so that the second end of the rocker arm 46 corresponds to the end of the rack 41 (in the axial direction), and the rack 41 is in the locked state relative to the housing 22, and the end surface of the first end of the rocker arm 46 corresponds to the guide 48. At this time, if the handle is rotated, the handle will drive the driving wheel 25 and the gear ring 43 on the driving wheel 25 to rotate. Further, the gear ring 43 on the driving wheel 25 will drive the rack 41 to move downward along the housing 22. Since the second end of the rocker arm 46 corresponds to the end of the rack 41 at this time, the rack 41 moves downward, i.e., the handle connected to the driving wheel cannot be rotated, thereby improving the safety of the lifting sliding door and window during use. Further, the trigger releases the locked state of the lifting frame 23 relative to the housing 22, and during the falling reset of the lifting frame 23 relative to the housing 22, since the end surface of the first end of the rocker arm 46 is inclined, the rocker arm 46 will be forced to deflect relative to the guide 48, or in other words, the guide 48 will push and make the rocker arm 46 deflect relative to the housing 22, so that the second end of the rocker arm 46 is separated from the end of the rack 41, i.e., at this time, the second end of the rocker arm 46 will not limit the upward and downward movement of the rack 41.

[0060] The embodiment also provides a lifting sliding door and window, which comprises a frame, a fan, a pulley assembly and a transmission box as described above. The fan is installed in the frame. The transmission box and the pulley assembly are both installed on the fan, and the transmission box is in transmission connection with the pulley assembly. The frame is also provided with a track. The pulley assembly is connected with the track and can move along the track. The transmission box is used to drive the pulley assembly to extend relative to the fan, so that the fan rises from the track and can move relative to the track. Alternatively, the trigger mechanism of the transmission box releases the lifting state of the pulley assembly relative to the fan, so that the fan falls onto the track, and the fan and the track form static friction.

[0061] The beneficial effects of the present application relative to the prior art mainly lie in: by setting the triggering mechanism on the transmission box, further, when the transmission box is installed on the sash of the door and window and in the process of closing the door and window, the edges of the sash of the door and window and the edges of the outer frame touch each other to form extrusion on the triggering mechanism, or the triggering mechanism is manually pressed, that is, the triggering mechanism is started, when the triggering mechanism is started, the extrusion state of the pulley assembly relative to the sash of the door and window is released, and then the sash of the door and window and the outer frame or the track arranged in the outer frame form static friction, that is, the rebound of the sash relative to the edges of the outer frame due to the impact of the sash on the outer frame is avoided, and the convenience of using the transmission box and the sliding door and window is improved.

[0062] In this specification, unless otherwise expressly specified and limited, a first feature being "on", "above", or "under" a second feature can mean that the first and second features are directly in contact with each other, or that the first and second features are indirectly in contact with each other through an intermediate medium. Also, a first feature being "above", "over", and "on top of" a second feature can mean that the first feature is directly above or obliquely above the second feature, or that the first feature is merely horizontally higher than the second feature. A first feature being "under", "below", and "underneath" a second feature can mean that the first feature is directly below or obliquely below the second feature, or that the first feature is merely horizontally lower than the second feature.

[0063] In the description of the specification, the description of the terms "preferred embodiment", "still another embodiment", "other embodiments", or "specific examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0064] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A transmission cassette, characterized by: The device comprises a shell, a driving mechanism, a lifting frame and a trigger mechanism, the lifting frame is in sliding connection with the shell, the driving mechanism is connected with the shell, and the driving mechanism is in transmission connection with the lifting frame, the trigger mechanism is connected with the shell, and the trigger mechanism is in transmission connection with the lifting frame, the driving mechanism is used to drive the lifting frame to move along the length direction of the shell, after the lifting frame moves from a first position to a second position relative to the shell, the trigger mechanism makes the lifting frame be in a locked state relative to the shell, and the trigger mechanism is in a state of being ready to be triggered, after the trigger mechanism is triggered by an external force, the trigger mechanism releases the locked state of the lifting frame relative to the shell, and the lifting frame moves from the second position to the first position relative to the shell. The driving mechanism comprises a pull rod, a driving wheel and a power assisting mechanism, the power assisting mechanism is in transmission connection with the lifting frame, and the power assisting mechanism is used to reduce the initial input torque of the driving mechanism. The power assisting mechanism comprises a guide wheel and a first protrusion, one end of the first protrusion is connected with the driving wheel, the other end of the first protrusion is a lifting end, the end face of the lifting end is in a slope or arc shape, one end of the length direction of the slope or arc shape forms a smooth transition with the peripheral surface of the driving wheel, the other end extends away from the axis of the driving wheel, and the slope gradually rises relative to the length direction of the shell. The guide wheel is in rotational connection with the lifting frame, and the guide wheel abuts against the end face of the lifting end. The transverse distance from the axis of the guide wheel to the axis of the driving wheel is smaller than the transverse distance from the axis of the driving wheel to the second end of the pull rod.

2. The transmission cassette of claim 1, wherein: The driving wheel is in rotational connection with the shell, the first end of the pull rod is connected with the lifting frame, the second end of the pull rod is hinged with the driving wheel, and the second end of the pull rod deviates from the axis of the driving wheel.

3. The transmission box according to claim 1, characterized in that: After the driving wheel rotates relative to the shell by more than a preset angle, the guide wheel and the lifting end are separated from each other.

4. The transmission box according to any one of claims 1-3, characterized in that: The trigger mechanism comprises a locking assembly and an unlocking assembly, the locking assembly is connected with the shell, and the locking assembly cooperates with the lifting frame to make the lifting frame be in a locked state relative to the shell. The unlocking assembly is connected with the lifting frame, the unlocking assembly is in transmission connection with the locking assembly, and the unlocking assembly is used to release the locked state of the locking assembly on the lifting frame.

5. The transmission box according to claim 4, characterized in that: The locking assembly comprises a first guide column, a first sliding block, a first return spring, a limiting block, a first guide slot and a second guide slot. The first guide column is fixedly connected with the shell, the first sliding block is connected with the first guide column, and the first sliding block can reciprocate along the length direction of the first guide column, one end of the first return spring abuts against the first sliding block, the other end of the first return spring abuts against the shell, and the limiting block is fixedly connected with the first sliding block. The first guide groove and the second guide groove are both formed in the lifting frame, the first guide groove and the second guide groove form an angle, and one end of the first guide groove and the second guide groove are communicated, the limiting block can move along the first guide groove or the second guide groove, when the lifting frame is locked with the shell, the limiting block moves from the second guide groove into the first guide groove, after the lifting frame is unlocked with the shell, the limiting block moves from the first guide groove into the second guide groove.

6. The transmission cassette of claim 5, wherein: The unlocking assembly comprises a second guide column, a second sliding block, a trigger block, a second reset spring, a third reset spring and a first shifting block. The second guide column is fixedly connected with the lifting frame, the second sliding block is connected with the second guide column, and the second sliding block can reciprocate along the axial direction of the second guide column, one end of the second reset spring is abutted with the second sliding block, and the other end is abutted with the lifting frame, one end of the trigger block is fixedly connected with the second sliding block, and the other end is a free end, and the second reset spring is used for pushing the second sliding block and making the free end of the trigger block extend out of the shell. The first shifting block is located at one end of the second sliding block, the first shifting block is slidingly connected with the second sliding block, one end of the third reset spring is abutted with the first shifting block, and the other end is abutted with the second sliding block, the third reset spring is used for making the end of the first shifting block extend out of the second sliding block, and the first shifting block is used for shifting the first sliding block to move along the length direction of the first guide column.

7. The transmission box according to claim 6, characterized in that: When the lifting frame is in the locked state relative to the shell, the end of the first shifting block is abutted with the first sliding block, and the trigger block is located in the shell; Alternatively, the trigger block extends out of the shell, in the radial direction of the first shifting block, the end of the first shifting block sweeps the end of the first sliding block, the end of the first shifting block extends out of the second sliding block, and one side of the first shifting block corresponds to one side of the first sliding block.

8. The transmission box according to any one of claims 2-3, 5-7, characterized in that: The driving mechanism is further provided with a reset assembly, the reset assembly is installed on the lifting frame, and the reset assembly is in transmission connection with the driving mechanism, after the driving mechanism drives the lifting frame to be in the locked state relative to the shell, the reset assembly pushes the driving mechanism to reset.

9. The transmission cassette of claim 8, wherein: The reset assembly comprises a rack and a fourth reset spring, the rack is slidingly connected with the shell, and the rack can move along the axial direction of the lifting frame and / or the shell, one end of the fourth reset spring is abutted with the lifting frame, and the other end is abutted with the rack, a gear ring is further arranged on the driving wheel of the driving mechanism, and the gear ring is in mesh with the rack; A third guide groove is further formed in the lifting frame, a pull rod shaft is further arranged on the first end of the pull rod of the driving mechanism, the pull rod shaft is arranged in the third guide groove, and after the driving mechanism resets, the pull rod shaft moves from the first end of the third guide groove to the second end of the third guide groove.

10. The transmission cassette of claim 9, wherein: The driving mechanism is further provided with a driving wheel locking mechanism. The driving mechanism drives the lifting frame to move along the axial length direction of the shell, so that the lifting frame is in a locked state relative to the shell, or after the lifting frame is in an unlocked state relative to the shell and the reset assembly resets the driving mechanism, the driving wheel locking mechanism locks the driving wheel. After the trigger mechanism releases the locking of the lifting frame, the driving wheel locking mechanism releases the rotation locking of the driving wheel.

11. The transmission cassette of claim 10, wherein: The driving wheel locking mechanism comprises a rocker, a fifth reset spring and a guide. The rocker is hinged to the lifting frame. The fifth reset spring is located on one side of the lifting frame, and one end of the fifth reset spring abuts against the rocker, and the other end abuts against the lifting frame. The guide is located at the first end of the rocker, and the end surface of the first end of the rocker is obliquely arranged. When the lifting frame is in a locked state relative to the shell, the fifth reset spring pushes the rocker to deflect relative to the shell, so that the second end of the rocker corresponds to the end of the rack, so that the rack is in a locked state relative to the shell, and the end surface of the first end of the rocker corresponds to the guide. When the lifting frame is triggered and the locked state of the lifting frame relative to the shell is released and the lifting frame is reset relative to the shell, the guide pushes and deflects the rocker relative to the shell, so that the second end of the rocker is separated from the end of the rack.

Images