A door and window frame and a door and window system

Abstract

The present invention discloses a door and window frame body and a door and window system. The door and window frame body includes a frame body main body, a movable plate capable of moving towards the outer frame body in the door and window system, and a lifting structure arranged on the frame body main body. The frame body main body is configured to be able to form at least part of the upper frame or at least part of the lower frame of the door and window in the door and window system; the movable plate is movably installed on the frame body main body; the lifting structure has an output end, the movable plate is connected to the output end, and the output end is configured to be able to drive at least part of the structure in the movable plate to move up and down relative to the frame body main body; by designing a lifting structure on the frame body main body that can drive the movable plate to move up and down, the movable plate can play a role in adjusting the height of the door and window, so as to achieve the purpose of adjusting the fitting gap between the door and window and the outer frame body, so as to achieve the purpose of improving the assembly sealing performance and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of doors and windows, and particularly to a door and window frame body and a door and window system. Background Art

[0002] For the installation structure of doors and windows, due to the differences in the construction site environment and the techniques among fitters, it is usually difficult for the door body or window body to perfectly cooperate with the outer frame body embedded in the wall in the door and window system. Therefore, during the production process, the door body or window body is usually made shorter to avoid the situation where the height of the door body or window body is higher than the height after the installation of the outer frame body, resulting in the inability of the door body or window body to cooperate with the outer door and window frame body.

[0003] However, this method of making the door body or window body shorter will increase the fitting gap with the outer frame body, affecting the assembly sealing performance and stability. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a door and window frame body and a door and window system to solve the following technical problems mentioned in the background art: The traditional method of making the door body or window body shorter will increase the fitting gap with the outer frame body, affecting the assembly sealing performance and stability.

[0005] The technical solution adopted by the present invention to solve its problems is:

[0006] A door and window frame body includes a frame body main body, a movable plate capable of moving towards the outer frame body in the door and window system, and a lifting structure arranged on the frame body main body. The frame body main body is configured to be able to form at least part of the upper frame or at least part of the lower frame of the door and window in the door and window system; the movable plate is movably installed on the frame body main body; the lifting structure has an output end, the movable plate is connected to the output end, and the output end is configured to be able to drive at least part of the structure in the movable plate to move up and down relative to the frame body main body.

[0007] In the door and window frame body disclosed by the present invention, by designing a lifting structure on the frame body main body that can drive the movable plate to move up and down, the movable plate can play a role in adjusting the height of the door and window, so as to achieve the purpose of being able to adjust the fitting gap between the door and window and the outer frame body, and to achieve the purpose of improving the assembly sealing performance and stability.

[0008] Further, the lifting structure includes a first screw rod as the output end; the first screw rod is rotatably installed on the frame body main body in the vertical direction, the first screw rod is connected to the movable plate, and the first screw rod is configured to be able to drive the movable plate to move up and down relative to the frame body main body when rotating.

[0009] Further, the lifting structure further includes a lifting plate capable of moving in the vertical direction. The lifting plate is installed on the movable plate and is threadedly connected to the first screw.

[0010] Further, the lifting structure further includes a second screw movably installed on the frame body. One end of the second screw is meshed and connected to the first screw, and the other end of the second screw is arranged towards the outer side of the door and window to serve as an operating end for driving the first screw to rotate.

[0011] Further, the frame body is provided with a slot along its length direction. The lifting structure is arranged in the slot. The movable plate is movably arranged in the slot through the lifting structure, and the plate surface of the movable plate is set to be parallel to the side wall of the slot.

[0012] Further, the door and window frame further includes a movable frame. The movable frame includes a top plate and side plates arranged at both ends in the width direction of the top plate. The side plates are formed into the movable plates. The length direction of the top plate is the same as the length direction of the frame body, and the width of the top plate is set to be less than or equal to the width of the slot. The side plates extend in the length direction of the slot to be formed into the movable plates.

[0013] Further, a limiting top block is arranged at the bottom of the top plate. The movable frame is supported by the lifting plate through the limiting top block. Side support blocks are arranged on the opposite wall surfaces of the two movable plates, and the end part in the width direction of the lifting plate is arranged between the side support blocks and the limiting top block.

[0014] Further, the lifting structure further includes a housing. The housing is installed at the end of the slot. The first screw and the second screw are both rotatably installed in the housing, and the part of the first screw in the housing is meshed and connected to the part of the second screw in the housing through gears.

[0015] Another object of the present invention is to disclose a door and window system, which includes a door and window body, an outer frame embedded in a wall, and the door and window frame as described above. The door and window frame is arranged at the top and / or bottom of the door and window body, and the door and window body is movably installed on the outer frame through the door and window frame.

[0016] In the door and window system disclosed by the present invention, by forming and arranging the door and window frame at the top or bottom of the door and window body, when assembling the door and window body on the outer frame, by adjusting the lifting structure in the door and window frame, the purpose of adjusting the height of the door and window body can be achieved, so that the door and window body can better adapt to the outer frame, which is beneficial to reducing the assembly gap of the door and window system and improving the assembly stability.

[0017] Further, the outer frame body is provided with a movable groove that cooperates with the top of the door and window body. The top of the movable frame located at the top of the door and window body is provided with a convex edge, and the movable groove is provided with a groove corresponding to the convex edge; when the top of the door and window body is located in the movable groove, the convex edge is configured to be capable of being received in the groove.

[0018] In summary, the door and window frame body and the door and window provided by the present invention have the following technical effects:

[0019] 1) The door and window frame body is designed with a lifting structure on the frame body main body that can drive the movable plate to move up and down, so that the movable plate can play a role in adjusting the height of the door and window, thereby achieving the purpose of adjusting the fitting gap between the door and window and the outer frame body, so as to achieve the purpose of improving the assembly sealing performance and stability;

[0020] 2) Adopting the form of combining the first screw rod, the lifting plate and the slotting can achieve the purpose of driving the lifting movement of the movable frame, which can help reduce the processing cost and can also play a role in improving the structural sealing performance of the frame body main body;

[0021] 3) Designing a groove in the movable groove of the outer frame body in the door and window system, and at the same time correspondingly designing a convex edge at the top of the movable frame. The cooperation between the groove and the convex edge can play a role in tortuousizing the gap space between the movable groove and the door and window body, so as to reduce the air circulation rate in the gap between the movable groove and the door and window body, thereby achieving the purpose of improving the sealing performance of the entire door and window system, and at the same time also playing a role in improving the assembly stability between the door and window body and the outer frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the assembly structure between the door and window frame body and the outer frame body of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the door and window system of the present invention;

[0024] Figure 3 It is an exploded schematic diagram of the door and window body of the present invention;

[0025] Figure 4 For Figure 3 The partial enlarged view of part A in

[0026] Figure 5 It is a schematic diagram of the internal structure of the housing of the present invention;

[0027] Figure 6 It is a schematic diagram of the assembly structure between the door and window frame body and the outer frame body when the movement form of the movable plate is swinging in other embodiments.

[0028] Among them, the meanings of the reference numerals are as follows:

[0029] 1. Frame body main body; 101. Groove; 103. Lateral groove; 2. Movable frame; 201. Movable plate; 2011. Side support block; 202. Top plate; 2021. Limit top block; 203. Convex edge; 3. Lifting structure; 301. First screw; 302. Lifting plate; 303. Second screw; 304. Housing; 305. Allen key; 306. First bevel gear; 307. Second bevel gear; 308. Convex block; 4. Door and window main body; 5. Outer frame body; 501. Movable groove; 5011. Groove; 6. Carry space. Detailed implementation manner

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] Among them, it should be understood that in this embodiment, the meaning of doors and windows can be understood as door categories or window categories, that is, at least including sliding door categories or sliding window categories. The door and window system can be understood as a door system or a window system, that is, at least including a sliding door system or a sliding window system.

[0034] Refer to Figure 1 , Figure 4 and Figure 5 , the present invention discloses a door and window frame body, which includes a frame body main body 1, a movable plate 201 that can move in the direction close to the outer frame body in the door and window system, and a lifting structure 3 provided on the frame body main body 1; the frame body main body 1 is configured to be able to form at least part of the upper frame or at least part of the lower frame of the door and window in the door and window system; the movable plate 201 is movably installed on the frame body main body 1; the lifting structure 3 has an output end, the movable plate 201 is connected to the output end, and the output end is configured to be able to drive at least part of the structure in the movable plate 201 to move up and down relative to the frame body main body 1.

[0035] The window and door frame disclosed in this embodiment is provided with a lifting structure 3 on the frame body 1 that can drive the movable plate 201 to move up and down, so that the movable plate 201 can adjust the structural height of the window and door, thereby achieving the purpose of adjusting the fitting gap between the window and door and the outer frame, and improving the assembly tightness and stability.

[0036] That is, in practical applications, if the window and door is made too short (i.e., the designed height of the door body or window body is lower than the assembly height of the outer frame), only by adjusting the lifting structure 3, the output end of the lifting structure 3 can be used to drive the movable plate 201 to move away from the window and door (i.e., drive the movable plate 201 to move upward). In this way, the movable plate 201 can make up for the designed height of the window and door, thereby reducing the assembly gap between the window and door and the outer frame, and further improving the assembly tightness and assembly stability.

[0037] Moreover, during the installation of the window and door into the outer frame, the lifting structure 3 can be adjusted to drive the output end to drive the movable plate 201 to move towards the window and door (i.e., drive the movable plate 201 to move downward). In this way, it can temporarily reduce the structural height of the window and door to avoid assembly interference with the outer frame and facilitate assembly. When the window and door is placed at the assembly position (i.e., the window and door is erected in the vertical space where the outer frame is located), the lifting structure 3 is adjusted so that the movable plate 201 can be fitted into the outer frame, thus completing the assembly of the window and door.

[0038] In some embodiments, referring to Figure 1 and Figure 5 , the lifting structure 3 includes a first screw rod 301 as the output end; the first screw rod 301 is rotatably installed on the frame body 1 in the vertical direction. The first screw rod 301 is connected to the movable plate 201, and the first screw rod 301 is configured to drive the movable plate 201 to move up and down relative to the frame body 1 when rotating. Rotating the first screw rod 301 vertically installed on the frame body 1, that is, rotating the first screw rod 301 in such a way that the axis line of its threaded rod section is parallel to the outer surface of the window and door. During adjustment, only by rotating the first screw rod 301 and restricting the rotation of the movable plate 201, the purpose of driving the movable plate 201 to move up and down relative to the frame body 1 can be achieved.

[0039] In some embodiments, referring to 1 and Figure 4, the lifting structure 3 further includes a lifting plate 302 capable of moving in the vertical direction. The lifting plate 302 is installed on the movable plate 201 and is threadedly connected to the first screw rod 301. The lifting plate 302 is threadedly connected to the first screw rod 301. In this way, when performing lifting adjustment, only by rotating the first screw rod 301 and simultaneously restricting the rotation of the lifting plate 302, the purpose of driving the lifting plate 302 to move up and down can be achieved. Also, since the lifting plate 302 is installed on the movable plate 201, in this way, the purpose of driving the movable frame 2 to move up and down by the first screw rod 301 can be achieved.

[0040] In some embodiments, the lifting structure 3 further includes a second screw rod 303 movably installed on the frame body 1; one end of the second screw rod 303 is meshed and connected to the first screw rod 301, and the other end of the second screw rod 303 is arranged towards the outer side of the door and window to serve as an operating end for driving the first screw rod 301 to rotate. Setting one end of the second screw rod 303 towards the outer side of the door and window facilitates the adjustment operation. Specifically, an internal hexagon 305 is provided at the end of the second screw rod 303 away from the door and window. When adjusting, only need to put an external hexagon tool into the internal hexagon 305 of the second screw rod 303, and then by rotating the external hexagon tool, the second screw rod 303 can be driven to rotate. And the second screw rod 303 is meshed and connected to the first screw rod 301 through gears. In this way, the second screw rod 303 can drive the first screw rod 301 to rotate, and further realize the lifting of the first screw rod 301 driving the lifting plate 302, and the purpose of driving the movable plate 201 to move up and down relative to the frame body 1 is achieved.

[0041] In some embodiments, refer to Figure 3 , the frame body 1 is provided with a slot 101 along its length direction, and the lifting structure 3 is arranged in the slot 101; by forming the slot 101 on the frame body 1 and arranging the lifting structure 3 therein, the effect of compact structure can be achieved. At least part of the structure in the movable plate 201 is movably arranged in the slot 101 through the lifting structure 3, and the plate surface of the movable plate 201 is set to be parallel to the side wall of the slot 101. Since the movable plate 201 is in the slot 101 and is parallel to the side wall of the slot 101, therefore, when the first screw rod 301 drives the movable plate 201 to move through the lifting plate 302, the side wall of the slot 101 will play a role in restricting the rotation of the movable plate 201, thus playing a role in cooperating with the first screw rod 301 to drive the movable frame 2 to move up and down, and further achieving the purpose of being able to adjust the height of the door and window.

[0042] In some embodiments, the door and window frame body further includes a movable frame 2 that can cooperate with the outer frame body in the door and window system. The movable frame 2 includes a top plate 202 and side plates provided at both ends in the width direction of the top plate 202, and the side plates are formed as the movable plates 201; the length direction of the top plate 202 is arranged in the same direction as the length direction of the frame body main body 1, and the width of the top plate 202 is set to be less than or equal to the width of the slot 101; the side plates extend in the length direction of the slot 101.

[0043] Since the length direction of the top plate 202 is arranged in the same direction as the length direction of the frame body main body 1, and the frame body main body 1 is formed at the top or bottom of the door and window, therefore, the main structure of the movable frame 2 will be arranged parallel to the main structure of the frame body main body 1, which is beneficial for the movable frame 2 to better replace the top frame of the door and window to better adapt to the outer frame body in the door and window system; the width of the top plate 202 is set to be less than or equal to the width of the slot 101, so that the movable frame 2 can be movably fitted into the slot 101, and the movable plate 201 therein can better adapt to the side wall of the slot 101. When adjustment is required, the first screw 301 rotates, driving the lifting plate 302 and the movable frame 2 to rotate together. When the movable frame 2 encounters the side wall of the slot 101, the rotation of the movable plate 201 and the lifting plate 302 will be blocked by the slot wall of the slot 101. Thus, the movable frame 2 will, under the continuous rotation of the first screw 301, move linearly along the axis line direction of the first screw 301 (i.e., the vertical direction), that is, the movable plates 201 are arranged at both ends in the width direction of the top plate 202 to form the movable frame 2, and the movable frame 2 is fitted into the slot 101. In this way, while the slot 101 plays a role in making the structure compact, it can also, in combination with the rotation of the first screw 301, achieve the purpose of driving the movable frame 2 to move up and down. Moreover, by arranging the lifting structure 3 in the slot 101 and combining the width of the movable frame 2 with the width of the slot 101 being adapted, it can also enhance the sealing performance of the frame body main body 1.

[0044] In some embodiments, refer to Figure 1, a limiting top block 2021 is provided at the bottom of the top plate 202. The movable frame 2 is supported by the lifting plate 302 through the limiting top block 2021. Side support blocks 2011 are provided on the opposite wall surfaces of the two movable plates 201. The end portions in the width direction of the lifting plate 302 are arranged between the side support blocks 2011 and the limiting top block 2021. In this way, the purpose of fitting the lifting plate 302 into the movable frame 2 can be achieved. At the same time, by providing the limiting top block 2021 at the bottom of the top plate 202, a carry space 6 can be formed between the top plate 202 and the lifting plate 302. Moreover, the lifting plate 302 is threadedly connected to the first screw rod 301. In this case, when the first screw rod 301 passes through the lifting plate 302 due to rotation, the carry space 6 can be used as the accommodation space for the rod section of the first screw rod 301 passing through the lifting plate 302, so as to meet the structural requirements of the driving space of the lifting structure 3.

[0045] And correspondingly, for the structure of the side support block 2011, in this embodiment, the screw hole structure used for threaded assembly with other fittings in the existing profile structure can be directly adopted. In this way, the cost of structural design can be reduced. During actual production and application, only the screw hole structure needs to be adjusted to the appropriate position of the movable plate 201 according to the actual design requirements.

[0046] In addition, in actual design, as an intermediate member for connecting and driving the movement of the movable frame 2, the lifting plate 302 can also reduce the design process of threading the movable frame 2. The lifting plate 302 and the first screw rod 301 can directly adopt commercially available standard parts. Therefore, in terms of the technical means of installing the lifting plate 302 on the movable frame 2, the difficulty is naturally much lower than that of opening mating threaded holes. Therefore, driving and connecting the movable frame 2 through the lifting plate 302 is beneficial to reducing the processing cost. And by designing the limiting top block 2021, while meeting the structural requirements of the driving space of the lifting structure 3, it can also play a role in hiding the lifting structure 3 to improve the aesthetics of the entire door and window frame.

[0047] Actually, in other embodiments, for the movement mode of the movable plate 201, in addition to the vertical reciprocating movement structure form, a swinging movement structure form can also be adopted. For example, see Figure 6, cancel the profile structure form of the movable frame 2 including the top plate 202, only retain the movable plate 201, and then hinge the bottom end of the movable plate 201 to the slot 101. The lifting plate 302 and the movable plate 201 are set in a movable connection structure form. When the height adjustment operation of the door and window is required, only need to drive the lifting plate 302 to push the movable plate 201 to swing. At this time, at least the structural part of the movable plate 201 far from the hinge point will swing away from the frame body 1 under the pushing action of the lifting plate 302, that is, move towards the outer frame in the door and window system. At this time, at least part of the structure in the movable plate 201 can move up and down relative to the frame body 1, that is, the movable plate 201 is equivalent to a swingable opening and closing plate at the top of the frame body 1. In this way, the purpose of adjusting the height of the door and window can also be achieved.

[0048] In some embodiments, the lifting structure 3 further includes a housing 304 whose outer shape is adapted to the cavity of the slot 101, and the housing 304 is installed at the end of the slot 101; the first screw 301 and the second screw 303 are both rotatably installed in the housing 304, and the part of the first screw 301 in the housing 304 is meshed and connected with the part of the second screw 303 in the housing 304. By combining and installing the first screw 301 and the second screw 303 in the housing 304, it is convenient to form an assembled structure, so as to play a role in facilitating mass production design; at the same time, the purpose of embedding the entire lifting structure 3 in the slot 101 can be achieved through the housing 304, that is, using the housing 304 to assemble the first and second screws can play a role in simplifying the structural design of assembling the first and second screws in the frame body 1, without separately designing the rotational assembly structure of the screws in the frame body 1, that is, the overall assembly of the lifting structure 3 can be completed only through the aforementioned slot 101, reducing the structural design cost of the frame body 1 as a profile part.

[0049] Specifically, refer to Figure 5 , and a first bevel gear 306 is provided on the rod section of the first screw 301 inside the housing 304, a second bevel gear 307 is provided on the rod section of the second screw 303 inside the housing 304, and the first bevel gear 306 is meshed and connected with the second bevel gear 307 to achieve the purpose of driving the first screw 301 to rotate by the second screw 303. Among them, the included angle between the first screw 301 and the second screw 303 is 90°, so as to facilitate the cooperative transmission between the first and second bevel gears, that is, when the housing 304 is installed in the slot 101, the second screw 303 is arranged horizontally.

[0050] Specifically, lateral grooves 103 are formed in the side walls of the slotted openings 101, and corresponding protrusions 308 are provided on the sides of the housing 304. When the housing 304 is fitted into the slotted opening 101, the protrusions 308 are located within the lateral grooves 103. The lateral grooves 103 and the protrusions 308 can serve to limit the fitting and lifting structure 3, thereby enhancing the stability of the fitting structure.

[0051] Another object of this embodiment is to disclose a door and window system. Refer to Figures 2 to 4 , which includes a door and window body 4, an outer frame 5 installed in a wall, and the door and window frame as described above. The door and window frame is disposed at the top and / or bottom of the door and window body 4, and the door and window body 4 is movably engaged with the outer frame 5 through the door and window frame.

[0052] In the door and window system of this embodiment, by forming and disposing the door and window frame at the top or bottom of the door and window body 4, when assembling the door and window body 4 on the outer frame 5, by adjusting the lifting structure 3 in the door and window frame, the height of the door and window body 4 can be adjusted, so that the door and window body 4 can better fit the outer frame 5, which is conducive to reducing the assembly gap of the door and window system and enhancing the assembly stability.

[0053] In some embodiments, refer to Figure 1 , the outer frame 5 is provided with an activity groove 501 that cooperates with the top of the door and window body 4. The top of the activity frame 2 at the top of the door and window body 4 is provided with a convex edge 203, and a groove 5011 corresponding to the convex edge 203 is provided on the activity groove 501; when the top of the door and window body 4 is located in the activity groove 501, that is, when the frame body main body 1 is located in the activity groove 501, the convex edge 203 is configured to be accommodated within the groove 5011. By providing the groove 5011 in the activity groove 501 and correspondingly providing the convex edge 203 at the top of the activity frame 2, when adjusting the lifting of the door and window body 4, the lifting structure 3 is driven so that the activity frame 2 on the frame body main body 1 at the top of the door and window body 4 is accommodated in the activity groove 501, and at the same time, the convex edge 203 is accommodated in the groove 5011. In this way, the convex edge 203 can serve to zigzag the gap space between the activity groove 501 and the door and window body 4, that is, to reduce the air circulation rate within the gap between the activity groove 501 and the door and window body 4, thereby enhancing the sealing performance of the entire door and window system; at the same time, when the door and window body 4 is tilted, the side wall of the groove 5011 can also support the convex edge 203, thereby enhancing the assembly stability between the door and window body 4 and the outer frame 5.

[0054] In summary, the door and window frame and the door and window disclosed in this embodiment can bring the following beneficial effects:

[0055] 1) By designing a lifting structure on the frame body that can drive the movable plate to move up and down, the movable plate can play a role in adjusting the height of the door and window, so as to achieve the purpose of adjusting the fitting gap between the door and window and the outer frame body, thereby achieving the purpose of improving the assembly sealing performance and stability;

[0056] 2) Adopting the form of combining the first screw rod, the lifting plate and the slot can achieve the purpose of driving the lifting movement of the movable frame, which can help reduce the processing cost and also play a role in improving the structural sealing performance of the frame body;

[0057] 3) Design a groove in the movable groove of the outer frame body in the door and window system, and at the same time design a convex edge at the top of the movable frame correspondingly. The cooperation between the groove and the convex edge can play a role in tortuousizing the gap space between the movable groove and the door and window body, so as to reduce the air flow rate in the gap between the movable groove and the door and window body, thereby achieving the purpose of improving the sealing performance of the entire door and window system and also playing a role in improving the assembly stability between the door and window body and the outer frame body.

[0058] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A door and window frame body, characterized in that, Comprising: A frame body main body (1), configured to be capable of being formed into at least a part of the upper frame or at least a part of the lower frame of a door or window in a door and window system; A movable plate (201), the movable plate (201) being movably installed on the frame body main body (1); and, A lifting structure (3) provided on the frame body main body (1), the lifting structure (3) having an output end, the movable plate (201) being connected to the output end, and the output end being configured to be capable of driving at least a part of the structure in the movable plate (201) to move up and down relative to the frame body main body (1); The lifting structure (3) includes a first screw rod (301) serving as an output end, a lifting plate (302) capable of moving in the vertical direction, and a second screw rod (303) movably installed on the frame body main body (1); the first screw rod (301) is rotatably installed in the vertical direction on the frame body main body (1), the lifting plate (302) is installed on the movable plate (201), the lifting plate (302) is threadedly connected to the first screw rod (301), and the first screw rod (301) is configured to be capable of driving the movable plate (201) to move up and down relative to the frame body main body (1) when rotating; one end of the second screw rod (303) is meshed and connected to the first screw rod (301), and the other end of the second screw rod (303) is arranged towards the outer side of the door or window to serve as an operating end for driving the first screw rod (301) to rotate; The frame body main body (1) is provided with a slot (101) along its length direction; the lifting structure (3) is arranged in the slot (101); the movable plate (201) is movably arranged in the slot (101) through the lifting structure (3), and the plate surface of the movable plate (201) is set to be parallel to the side wall of the slot (101); The door and window frame body further includes a movable frame (2), the movable frame (2) includes a top plate (202) and side plates provided at both ends in the width direction of the top plate (202), and the side plates are formed into the movable plate (201); the length direction of the top plate (202) is set to be the same as the length direction of the frame body main body (1), and the width of the top plate (202) is set to be less than or equal to the width of the slot (101); A limiting top block (2021) is provided at the bottom of the top plate (202), and the movable frame (2) is supported by the lifting plate (302) through the limiting top block (2021).

2. The window and door frame according to claim 1, characterized in that, The lifting structure (3) further includes a housing (304); The first screw rod (301) and the second screw rod (303) are both rotatably installed in the housing (304), and the part of the first screw rod (301) in the housing (304) is meshed and connected to the part of the second screw rod (303) in the housing (304) through gears.

3. A door and window system, characterized in that, Comprising a door and window body (4), an outer frame body (5) embedded in a wall, and the door and window frame body according to claim 1 or 2, the door and window frame body being disposed at the top and / or bottom of the door and window body (4), and the door and window body (4) being movably engaged with the outer frame body (5) through the door and window frame body.

4. The door and window system according to claim 3, wherein The outer frame body (5) is provided with a movable groove (501) that cooperates with the top of the door and window body (4). The top of the movable frame (2) at the top of the door and window body (4) is provided with a convex edge (203), and the movable groove (501) is provided with a groove (5011) corresponding to the convex edge (203). When the top of the door and window body (4) is located in the movable groove (501), the convex edge (203) is configured to be capable of being received in the groove (5011).

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