Adjustable sliding device for doors and windows and door and window

Abstract

The utility model provides a kind of adjustable sliding device for door and window and door and window, comprising: sliding mechanism, for being installed on the lower frame of the fixed frame of door and window and can move;Support pedestal, it is installed on the sliding mechanism, and can be moved in height direction and X direction relative to the sliding mechanism, and the X direction is along the moving direction of the sliding mechanism, the support pedestal is equipped with adjusting sliding slot, the adjusting sliding slot is inclinedly arranged in the X direction, the support pedestal is used to be connected with the door and window leaf of door and window and support the door and window leaf;Adjusting mechanism, including sliding shaft and drive locking assembly, the sliding shaft is installed in the sliding mechanism and is arranged in the adjusting sliding slot, the drive locking assembly connects the support pedestal and the sliding mechanism, for driving the support pedestal relative to the sliding mechanism in the X direction moves, and the relative position of the support pedestal and the sliding mechanism can be locked.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, specifically to an adjustable sliding device for doors and windows, and doors and windows themselves. Background Technology

[0002] Currently, doors and windows can be classified according to their opening method into casement doors and windows, sliding doors and windows, inward-opening tilt-and-turn (tilt-and-turn) doors and windows, and sliding tilt-and-turn (tilt-and-turn) doors and windows. Among them, sliding tilt-and-turn (tilt-and-turn) doors and windows mainly consist of a fixed frame and a door / window sash that can be opened and closed and installed on the fixed frame. In order to facilitate the smooth sliding of the door / window sash, a pulley mechanism is set at the bottom of the door / window sash. The pulley mechanism moves on a slide rail on the bottom edge of the fixed frame, and the door / window sash moves linearly on the slide rail through the pulley mechanism to perform the opening and closing actions.

[0003] The conventional pulley mechanism used in existing door and window designs primarily serves to support and move the door and window sashes. For example, the pulley device and door / window profile disclosed in Chinese Utility Model Patent Application No. 201821390427.7, where the pulley body moves on a guide rail of a fixed frame, thereby supporting and driving the window to move and achieve push-pull operation. It also features anti-theft components that engage with the guide rail, making it difficult to remove the window frame from the profile frame, thus ensuring the anti-theft and anti-detachment effect of the door and window. However, during the installation of doors and windows, it is necessary to fine-tune the height of the door and window sashes to ensure accurate installation and smooth sliding. Furthermore, during long-term use, deformation and other issues may cause the door and window sashes to require further height adjustments to ensure smooth sliding without jamming. Existing door and window designs often require readjustment during installation, which is cumbersome, has high maintenance costs, and affects the long-term use of the door and window products. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an adjustable sliding device for doors and windows, and doors and windows, which can realize simple and quick adjustment of the height position of door and window sashes.

[0005] To achieve the above objectives, this utility model provides an adjustable sliding device for doors and windows, comprising:

[0006] A sliding mechanism, used to be installed on the lower frame of a fixed frame of a door or window and capable of movement;

[0007] A support base is mounted on the sliding mechanism and is movable relative to the sliding mechanism in the height direction and the X direction, with the X direction along the moving direction of the sliding mechanism. The support base is provided with an adjusting groove, which is inclined in the X direction. The support base is used to connect with and support the door and window sashes of doors and windows.

[0008] The adjustment mechanism includes a sliding shaft and a drive locking assembly. The sliding shaft is mounted on the sliding mechanism and disposed in the adjustment groove. The drive locking assembly connects the support base and the sliding mechanism, and is used to drive the support base to move relative to the sliding mechanism in the X direction, and is capable of locking the relative position of the support base and the sliding mechanism.

[0009] The adjustable sliding device is installed on the lower frame of the fixed frame via a sliding mechanism. A support base supports the door / window sash, and under gravity, the upper wall of the adjusting groove presses against the sliding shaft. During normal use, the drive locking component is locked, securing the relative positions of the support base and the sliding mechanism. The adjustable sliding device can slide as a whole on the lower frame, thus smoothly opening and closing the door / window sash. If the height of the door / window sash needs fine-tuning during installation and use, the height at the corresponding position can be adjusted using the adjustable sliding device. The drive locking component moves the sliding mechanism a certain distance to the left relative to the support base in the X direction. At this time, the sliding shaft installed on the sliding mechanism also moves a certain distance to the left. Simultaneously, under the pressure of gravity, the adjusting groove exerts a downward pressure on the sliding shaft, causing the sliding shaft to move a certain distance towards the higher end of the adjusting groove. This causes the adjusting groove and the support base to move a certain distance downwards, lowering the height of the door / window sash installed on the support base. Once the appropriate height is achieved, the drive locking component can be used to lock the support base and the sliding mechanism again. Conversely, when it is necessary to raise the door or window sash, the sliding mechanism is moved a certain distance to the right relative to the support base in the X direction by driving the locking component. In this way, the sliding shaft moves a certain distance to the lower end in the adjusting groove. Through the cooperation with the adjusting groove, the support base is lifted a certain distance, thereby raising the door or window sash installed on the support base to a certain height.

[0010] Furthermore, the support base includes a reinforcing liner plate disposed on the upper side wall of the adjusting slide. The reinforcing liner plate withstands the pressure between the adjusting slide and the sliding shaft, reducing wear and preventing deformation or other aging phenomena under pressure, thus extending the service life of the adjusting slide.

[0011] Furthermore, the reinforcing liner is made of stainless steel. Stainless steel has excellent hardness and wear resistance, which ensures the reinforcing liner's load-bearing capacity and reduces wear.

[0012] Furthermore, the reinforcing liner is fixedly installed in the support base by an inlay method, which can reduce material costs.

[0013] Furthermore, the sliding shaft includes an intermediate shaft core mounted on the sliding mechanism and a bushing fitted on the intermediate shaft core. The bushing is located in the adjusting groove and is rotatable relative to the intermediate shaft core. The sliding shaft employs a combination of an intermediate shaft core and a bushing. When it slides in the adjusting groove, the bushing can roll relative to the intermediate shaft core, thereby reducing friction and further reducing the adjusting force.

[0014] Furthermore, the drive locking assembly includes a slider, a connecting rod, and a drive locking structure. The slider is mounted on the support base and can move relative to the support base in the X direction. The connecting rod is hinged at both ends to the sliding mechanism and the slider, respectively. The drive locking structure connects the slider and the support base, driving the slider to move in the X direction and locking the relative position of the slider and the support base. When the slider moves, it drives the sliding mechanism to move via the connecting rod. The connecting rod ensures the transmission of driving force while allowing the slider and support base to move smoothly up and down relative to the sliding mechanism. Furthermore, under the weight of the door / window sash, the right and left ends of the support base remain balanced, allowing the support base to move in a balanced posture during adjustment, thus ensuring uniform support for the door / window sash.

[0015] Furthermore, the drive locking structure includes a drive bolt, the axial direction of which is along the X direction, and it is screwed into both the slider and the support base. The drive bolt enables locking while simultaneously allowing relative movement between the slider and the support base, resulting in a simple structure and convenient operation.

[0016] Furthermore, the slider is provided with a guide pin, the connecting rod is hinged to the guide pin, and the support base is also provided with a guide groove extending linearly in the X direction, with the guide pin located in the guide groove. When the slider moves relative to the support base in the X direction, the guide pin moves in the guide groove, playing a role in stabilizing and guiding.

[0017] Furthermore, the adjustment mechanism also includes a return spring disposed between the slider and the support base. The spring force of the return spring drives the slider to move along the X direction from the lower end to the higher end of the adjustment groove. Before the adjustable sliding device is installed in the door or window, the spring force of the return spring ensures that the support base is in its lowest position relative to the sliding mechanism, maintaining a stable pre-installation state. Simultaneously, during adjustment, the spring force provided by the return spring assists in lowering the support base.

[0018] This utility model also provides a door and window, including a fixed frame and a door / window sash, and further including the aforementioned adjustable sliding device. The sliding mechanism of the adjustable sliding device is installed on the lower frame of the fixed frame, and the support base is fixedly supported on the bottom of the door / window sash. The door / window sash can move smoothly within the fixed frame via the adjustable sliding device to achieve opening and closing actions, and the height of the door / window sash can be adjusted via the adjustable sliding device.

[0019] As described above, the adjustable sliding device and the doors and windows involved in this utility model have the following beneficial effects:

[0020] The adjustable sliding device comprises a sliding mechanism, a support base, and an adjustment mechanism. The adjustment mechanism allows for the adjustment and locking of the relative positions of the sliding mechanism and the support base. Through the cooperation of the sliding shaft and the adjusting groove, the height of the support base can be adjusted. This allows for flexible adjustment of the door and window sash height as needed during installation and use. The entire operation is convenient, flexible, and quick, with low maintenance costs, effectively ensuring the longevity of the doors and windows. Furthermore, the use of a stainless steel reinforcing plate enhances the load-bearing capacity and durability of the support base, thereby extending its service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation of the adjustable sliding device in a door or window according to this application, where only the lower frame of the fixed frame is shown.

[0022] Figure 2 for Figure 1 Enlarged view of circle A.

[0023] Figure 3 This is a schematic diagram of the adjustable sliding device in this application.

[0024] Figure 4 This is a schematic diagram of the adjustable sliding device in this application.

[0025] Figure 5 This is a front view of the adjustable sliding device in this application.

[0026] Figure 6 This is a top view of the adjustable sliding device in this application.

[0027] Figure 7 for Figure 6 Sectional view along the EE direction.

[0028] Figure 8 This is a schematic diagram of the bottom side of the adjustable sliding device in this application.

[0029] Figure 9 This is a schematic diagram of the supporting base in this application.

[0030] Figure 10 This is a schematic diagram of the installation of the sliding shaft in the adjusting groove in this application.

[0031] Figure 11 This is a schematic diagram of the pulley assembly in this application.

[0032] Figure 12 This is a schematic diagram of the sliding limit block in this application.

[0033] Explanation of icon numbers:

[0034] 1-Fixed frame, 11-Slide rail, 2-Door / window sash, 3-Adjustable sliding device, 4-Support base, 41-Adjustable slide groove, 411-High end, 412-Low end, 42-Reinforcing liner, 43-Fixing bolt, 44-Guide groove, 45-Supporting plane, 5-Adjusting mechanism, 51-Sliding shaft, 511-Intermediate shaft core, 512-Busset, 52-Slider, 521-Guide pin, 53-Connecting rod, 54-Drive bolt, 55-Reset spring, 6-Sliding mechanism, 61-Sliding seat, 611-Large side plate, 62-Pulley assembly, 621-Wheel body, 622-Pulley side plate, 623-Wheel axle, 624-Connecting pin, 63-Sliding limit block, 631-T-shaped limit groove, 7-Brush. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0036] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0038] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0039] See Figures 1 to 12 This application provides an adjustable sliding device 3 for doors and windows, and a door and window including the adjustable sliding device 3. For ease of description, in this application, each direction is defined as follows: the width direction of the door and window is defined as the left-right direction, the height direction of the door and window is defined as the up-down direction, and the thickness direction of the door and window is defined as the front-back direction. The thickness direction of the door and window is also the indoor-outdoor direction.

[0040] The adjustable sliding device 3 of this application includes:

[0041] The sliding mechanism 6 is installed on the lower frame of the fixed frame 1 of the door and window and can move along the length of the lower frame, that is, along the left and right direction.

[0042] The support base 4 is installed on the sliding mechanism 6 and can move relative to the sliding mechanism 6 in the height direction and the X direction, with the X direction along the moving direction of the sliding mechanism 6. That is, after the adjustable sliding device 3 is installed in the door or window, the X direction is along the left and right direction. The support base 4 is provided with an adjusting groove 41, which is inclined in the X direction. That is, one end of the adjusting groove 41 in the X direction is higher than the other end, referred to as the high end 411 and the low end 412, respectively. The height of the adjusting groove 41 smoothly transitions from the high end 411 to the low end 412. The support base 4 is used to connect with and support the door and window sash 2 of the door and window.

[0043] The adjustment mechanism 5 includes a sliding shaft 51 and a drive locking assembly. The sliding shaft 51 is mounted on the sliding mechanism 6 and disposed in the adjustment groove 41, wherein the adjustment groove 41 has an appropriate length so that the sliding shaft 51 can have a certain sliding range in the adjustment groove 41. The drive locking assembly connects the support base 4 and the sliding mechanism 6, and is used to drive the support base 4 to move relative to the sliding mechanism 6 in the X direction, and can lock the relative position of the support base 4 and the sliding mechanism 6.

[0044] The main working principle of the adjustable sliding device 3 of this application is as follows: For use, please refer to... Figure 1 and Figure 2An adjustable sliding device 3 is installed between the bottom side of the door / window sash 2 and the lower frame of the fixed frame 1. Multiple adjustable sliding devices 3 can be installed on the bottom side of each door / window sash 2. The adjustable sliding device 3 is mounted on the lower frame of the fixed frame 1 via a sliding mechanism 6. A support base 4 supports the door / window sash 2, and the two are preferably fixedly connected. Under gravity, the upper wall of the adjusting groove 41 presses against the sliding shaft 51. After installation, the adjustable sliding device 3 moves along the length of the lower frame in the X direction, which is also along the direction of movement of the sliding mechanism 6. During normal use, the drive locking component is in a locked state, locking the relative positions of the support base 4 and the sliding mechanism 6. The support base 4 and the sliding mechanism 6 will not shift relative to each other, allowing the adjustable sliding device 3 to slide as a whole on the lower frame. When opening or closing the door / window sash 2, pushing the door / window sash 2 causes it to slide upwards along the lower frame via the adjustable sliding device 3, thus smoothly achieving the opening and closing action of the door / window sash 2. During the installation and use of door / window sash 2, if it is found that the height of door / window sash 2 needs to be finely adjusted, the height at the corresponding position can be adjusted through the adjustable sliding device 3. The working principle of each adjustable sliding device 3 is the same, so one of them will be used as an example for explanation below. See Figure 1 , Figure 2 and Figure 3 Taking the adjustable sliding device 3 located near the right side of the door / window sash 2 as an example, the high end 411 and the low end 412 of the adjusting groove 41 in this adjustable sliding device 3 are located on the left and right sides, respectively. When it is necessary to lower the door / window sash 2, see... Figure 5 and Figure 7 By driving the locking assembly, the sliding mechanism 6 moves a certain distance to the left relative to the support base 4 in the X direction. At this time, the sliding shaft 51 installed on the sliding mechanism 6 also moves a certain distance to the left. Simultaneously, under the pressure of gravity, the adjusting groove 41 exerts a downward pressure on the sliding shaft 51. The sliding shaft 51 moves a certain distance towards the higher end 411 in the adjusting groove 41, thereby causing the adjusting groove 41 and the support base 4 to move a certain distance downward relative to each other, thus lowering the door / window sash 2 installed on the support base 4 by a certain height. When the appropriate height is reached, the supporting base 4 and the sliding mechanism 6 are locked again by driving the locking assembly. Conversely, when it is necessary to raise the door / window sash 2, the sliding mechanism 6 moves a certain distance to the right relative to the support base 4 in the X direction by driving the locking assembly. This causes the sliding shaft 51 to move a certain distance towards the lower end 412 in the adjusting groove 41. Through cooperation with the adjusting groove 41, the support base 4 is lifted a certain distance upward, thereby raising the door / window sash 2 installed on the support base 4 by a certain height.

[0045] The adjustable sliding device 3 of this application, by setting a sliding mechanism 6, a support base 4 and an adjustment mechanism 5, uses the adjustment mechanism 5 to adjust and lock the relative position of the sliding mechanism 6 and the support base 4, and realizes the adjustment of the height of the support base 4 through the cooperation of the sliding shaft 51 and the adjustment groove 41. The height of the door and window sash 2 can be flexibly adjusted as needed during the installation and use of doors and windows. The whole operation is convenient, flexible and quick, with low maintenance cost, and can effectively ensure the long-term use of doors and windows.

[0046] See Figures 3 to 12 The adjustable sliding device 3 of this application will be described below with reference to several specific embodiments.

[0047] See Figure 5 , Figure 7 and Figure 9 As a preferred design, the adjusting groove 41 in the support base 4 is a straight groove. Its length and inclination angle can be determined according to the actual adjustment needs, so that the sliding shaft 51 has a suitable height stroke and left and right stroke in the adjusting groove 41, thereby giving the support base 4 a suitable height stroke. Preferably, the inclination angle between the adjusting groove 41 and the horizontal plane is 20-30°, with 25° being preferred. In other embodiments, the adjusting groove 41 can also be arc-shaped or other shapes, as long as its upper groove wall changes smoothly to ensure that the sliding shaft 51 can slide smoothly in the adjusting groove 41.

[0048] See Figure 5 , Figure 7 and Figure 9 As a preferred design, the support base 4 is made of ZDC2 zinc alloy. The support base 4 includes a reinforcing liner 42 located on the upper side wall of the adjusting slide 41. The reinforcing liner 42 has higher structural strength and hardness than the support base 4, enabling it to withstand greater pressure and providing better wear resistance. The reinforcing liner 42 bears the pressure between the adjusting slide 41 and the sliding shaft 51, reducing wear and preventing deformation and aging of the adjusting slide 41 under pressure, thus extending its service life. The reinforcing liner 42 is preferably made of stainless steel, but other materials with similar or better structural strength and hardness can also be used. Furthermore, the reinforcing liner 42 is fixedly installed in the support base 4 using an inlay method. Specifically, the support base 4 has an inlay groove located on the upper side of the adjusting slide 41. The reinforcing liner 42 is inlaid in the inlay groove and is fixedly connected to the support base 4 by a fixing bolt 43 passing through the reinforcing liner 42. This installation method facilitates the replacement of the reinforcing liner 42. When wear occurs after long-term use, the reinforcing liner 42 can be replaced.

[0049] See Figure 3 and Figure 5As a preferred design, the top of the support base 4 is provided with a support plane 45 for contacting the bottom surface of the door and window sash 2. The bottom surface of the door and window sash 2 presses on the support plane 45 and remains in contact, thereby providing good support for the door and window sash 2.

[0050] See Figure 5 , Figure 7 and Figure 10 As a preferred design, the sliding shaft 51 of the adjusting mechanism 5 includes an intermediate shaft core 511 mounted on the sliding mechanism 6 and a bushing 512 fitted on the intermediate shaft core 511. The bushing 512 is located in the adjusting groove 41 and can rotate relative to the intermediate shaft core 511. Both ends of the intermediate shaft core 511 can be fixedly mounted in the sliding mechanism 6 to ensure stability. The sliding shaft 51 uses a combination of the intermediate shaft core 511 and the bushing 512. When it slides in the adjusting groove 41, the bushing 512 can roll relative to the intermediate shaft core 511, thereby reducing friction and further reducing the adjusting force. In other embodiments, the sliding shaft 51 can also be a single shaft with both ends rotatably mounted in the sliding mechanism 6, and can also rotate in the adjusting groove 41.

[0051] See Figure 3 , Figure 7 and Figure 8 As a preferred design, the drive locking component in the adjustment mechanism 5 includes a slider 52, a connecting rod 53, and a drive locking structure. The slider 52 is mounted on the support base 4 and can move relative to the support base 4 in the X direction. The connecting rod 53 is hinged at both ends to the sliding mechanism 6 and the slider 52, respectively. Preferably, there are two connecting rods 53, located on the front and rear sides of the slider 52 and the sliding mechanism 6, resulting in a more stable structure. The drive locking structure connects the slider 52 and the support base 4, driving the slider 52 to move in the X direction and locking the relative position of the slider 52 and the support base 4. With this design, during height adjustment, the drive locking structure drives the slider 52 to move relative to the support base 4. The slider 52, through the connecting rod 53, drives the sliding mechanism 6 to move upwards relative to the support base 4 in the X direction. Simultaneously, the support base 4 and the slider 52 also move vertically relative to the sliding mechanism 6. The linkage 53 ensures the transmission of driving force while allowing the slider 52 and the support base 4 to move smoothly up and down relative to the sliding mechanism 6. Furthermore, under the weight of the door / window sash 2, the right and left ends of the support base 4 remain balanced. This allows the support base 4 to move in a balanced posture during adjustment, meaning the support plane 45 remains horizontal, thus ensuring uniform support for the door / window sash 2. In this embodiment, the height difference between the highest and lowest positions the support base 4 can reach during adjustment is 5mm, meaning the height adjustment range of the support base 4 is 0-5mm.

[0052] See Figure 3 , Figure 4 and Figure 7 Furthermore, the drive locking structure includes a drive bolt 54, whose axial direction is along the X direction, and which is simultaneously screwed into the slider 52 and the support base 4. When the drive bolt 54 is not rotated, it locks the relative position of the slider 52 and the support base 4. Rotating the drive bolt 54 causes the slider 52 to move relative to the support base 4 in the X direction. Specifically, when the drive bolt 54 is rotated counterclockwise, the slider 52 and the sliding mechanism 6 move to the left relative to the support base 4, causing the support base 4 to descend; when the drive bolt 54 is rotated clockwise, the slider 52 and the sliding mechanism 6 move to the right relative to the support base 4, causing the support base 4 to rise. This drive locking structure is simple and easy to operate. In other embodiments, the drive locking structure can also employ other suitable existing designs.

[0053] See Figure 3 , Figure 4 and Figure 7 Furthermore, the slider 52 is provided with a guide pin 521, which passes through the slider 52. A connecting rod 53 is hinged to the guide pin 521 through a shaft hole, and the connecting rods 53 on both sides are respectively connected to the two ends of the guide pin 521. The support base 4 is also provided with a guide groove 44 extending linearly in the X direction. The guide pin 521 is located in the guide groove 44 and is in clearance fit with the upper and lower groove walls of the guide groove 44. When the slider 52 moves relative to the support base 4 in the X direction, the guide pin 521 moves in the guide groove 44, providing stable guidance. Other suitable guiding structures can also be provided between the support base 4 and the slider 52.

[0054] See Figure 3 , Figure 4 and Figure 7 Furthermore, the adjustment mechanism 5 also includes a return spring 55 disposed between the slider 52 and the support base 4. The return spring 55 is fitted onto the drive bolt 54, and its two ends abut against the slider 52 and the support base 4 respectively, ensuring stable installation. When the return spring 55 is in a compressed state, its elastic force drives the slider 52 to move along the X direction from the side of the lower end 412 of the adjustment groove 41 to the side of the higher end 411, i.e., drives the slider 52 to move to the left. Before the adjustable sliding device 3 is installed on the door or window, the elastic force of the return spring 55 ensures that the support base 4 is in its lowest position relative to the sliding mechanism 6, maintaining a stable pre-installation state. Simultaneously, during adjustment, the elastic force provided by the return spring 55 assists in lowering the support base 4, i.e., assists in the adjustment operation when the door or window sash 2 is lowered.

[0055] See Figure 3 , Figure 7 and Figure 8As a preferred design, the sliding mechanism 6 includes a sliding seat 61 and a pulley assembly 62. The sliding seat 61 serves as the mounting base for other structures and mainly consists of two large side plates 611 arranged opposite each other, which are fixedly connected by multiple pins in the middle. The pulley assembly 62 is installed between the two large side plates 611. The adjusting groove 41 of the support base 4 is located between the two large side plates 611, the two ends of the sliding shaft 51 are installed in the two large side plates 611, and the two connecting rods 53 are located on the outer sides of the two large side plates 611 respectively. The adjusting mechanism 5 is used to adjust or lock the relative position of the support base 4 and the sliding seat 61. The pulley assembly 62 moves on the lower frame of the fixed frame 1 by rolling motion to reduce friction.

[0056] See Figure 3 , Figure 7 and Figure 11 Furthermore, the pulley assembly 62 includes a wheel body 62, pulley side plates 622, axle 623, and connecting pin 624. There are two pulley side plates 622, arranged opposite each other and parallel to each other. The wheel body 62 can be multiple or a single wheel body, positioned between two pulley side plates 622. An axle 623 is installed in the middle of the wheel body 62, with both ends of the axle 623 mounted on the two pulley side plates 622. The two pulley side plates 622 stabilize the axial position of the wheel body 62. The two pulley side plates 622 are connected by a connecting pin 624 and mounted on the sliding seat 61. Both ends of the connecting pin 624 are respectively mounted on two large side plates 611. The two pulley side plates 622 abut against the inner surfaces of the two large side plates 611, stabilizing the position of the pulley assembly 62 within the sliding seat 61. The sliding mechanism 6 has two pulley assemblies 62, located near the left and right ends of the sliding seat 61 respectively. The number of pulley assemblies 62 can also be set according to actual needs. The lower frame of the fixed frame 1 is provided with a linear slide rail 11, and the wheel body 62 of the pulley assembly 62 is mounted on the slide rail 11.

[0057] See Figure 7 , Figure 8 and Figure 12Furthermore, the sliding mechanism 6 also includes a sliding limiting block 63 fixedly installed on the sliding seat 61, which is fixedly disposed between the two large side plates 611. There are two sliding limiting blocks 63, located near the left and right ends of the sliding seat 61 respectively. The slide rail 11 on the lower frame of the fixed frame 1 has a T-shaped cross-section. The sliding limiting block 63 has a T-shaped limiting groove 631, the shape of which matches the cross-sectional shape of the slide rail 11. When the sliding mechanism 6 is installed on the lower frame of the fixed frame 1, the T-shaped limiting groove 631 of the sliding limiting block 63 engages with the slide rail 11, providing limiting and guiding functions to prevent the sliding mechanism 6 from detaching from the slide rail 11. The contact surface between the T-shaped limiting groove 631 and the slide rail 11 should be smooth to reduce friction. The sliding limiting block 63 is preferably made of resin or plastic with a certain degree of elasticity, allowing for some deformation, facilitating the T-shaped limiting groove 631 to be engaged with the slide rail 11 by pressing down, thus simplifying installation. In other embodiments, the cross-section of the slide rail 11 and the T-shaped limiting groove 631 in the sliding limiting block 63 can also be set to other shapes, as long as they cooperate to provide a constraint force to prevent the sliding mechanism 6 from disengaging from the slide rail 11.

[0058] See Figure 7 Furthermore, it also includes a brush 7 installed on the sliding mechanism 6. Specifically, the brush 7 can be fixed on the sliding limit block 63 or the sliding seat 61. When the sliding mechanism 6 is installed on the slide rail 11, the brush 7 contacts the slide rail 11. When the adjustable sliding device 3 moves normally on the lower frame of the fixed frame 1, the brush 7 can clean up the dust or debris that falls on the slide rail 11 to avoid affecting the movement of the pulley assembly 62 on the slide rail 11.

[0059] The sliding mechanism 6 in this application is not limited to the specific example described above. In other embodiments, other suitable existing structures can also be used. For example, the slider 52 can move directly on the slide rail 11, or a straight slide groove can be provided in the lower frame of the fixed frame 1, and the sliding mechanism 6 can be fitted into the slide groove and slide by means of a sliding block. The sliding mechanism 6 only needs to move smoothly in the lower frame of the fixed frame 1 and stably serve as the mounting and bearing foundation for the support base 4.

[0060] This application also provides a door and window, see [link]. Figure 1 and Figure 2 The system includes a fixed frame 1 and a door / window sash 2, as well as the aforementioned adjustable sliding device 3. The sliding mechanism 6 of the adjustable sliding device 3 is installed on the lower frame of the fixed frame 1, the wheel 62 presses against the slide rail 11, the sliding limit block 63 is engaged with the slide rail 11, and the brush 7 contacts the slide rail 11. The support base 4 is fixedly supported at the bottom of the door / window sash 2, and provides stable support by fitting the support plane 45 against the bottom surface of the door / window sash 2. Two or more adjustable sliding devices 3 are provided between the fixed frame 1 and the door / window sash 2.

[0061] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0062] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An adjustable sliding device for doors and windows, characterized in that, include: A sliding mechanism (6) is used to be installed on the lower frame of the fixed frame (1) of the door and window and is movable; A support base (4) is mounted on the sliding mechanism (6) and can move relative to the sliding mechanism (6) in the height direction and the X direction, with the X direction along the moving direction of the sliding mechanism (6). The support base (4) is provided with an adjusting groove (41), which is inclined in the X direction. The support base (4) is used to connect with and support the door and window sash (2). The adjustment mechanism (5) includes a sliding shaft (51) and a drive locking assembly. The sliding shaft (51) is mounted on the sliding mechanism (6) and disposed in the adjustment groove (41). The drive locking assembly connects the support base (4) and the sliding mechanism (6) and is used to drive the support base (4) to move relative to the sliding mechanism (6) in the X direction and to lock the relative position of the support base (4) and the sliding mechanism (6).

2. The adjustable sliding device according to claim 1, characterized in that: The support base (4) includes a reinforcing liner (42) disposed on the upper side wall of the adjusting slide (41).

3. The adjustable sliding device according to claim 2, characterized in that: The reinforcing liner (42) is made of stainless steel.

4. The adjustable sliding device according to claim 2, characterized in that: The reinforcing liner (42) is fixedly installed in the support base (4) by means of inlay.

5. The adjustable sliding device according to claim 1, characterized in that: The sliding shaft (51) includes an intermediate shaft core (511) mounted on the sliding mechanism (6) and a bushing (512) fitted on the intermediate shaft core (511). The bushing (512) is located in the adjusting groove (41) and can rotate relative to the intermediate shaft core (511).

6. The adjustable sliding device according to claim 1, characterized in that: The drive locking assembly includes a slider (52), a connecting rod (53), and a drive locking structure. The slider (52) is mounted on the support base (4) and can move relative to the support base (4) in the X direction. The two ends of the connecting rod (53) are respectively hinged to the sliding mechanism (6) and the slider (52). The drive locking structure connects the slider (52) and the support base (4) and is used to drive the slider (52) to move in the X direction and lock the relative position of the slider (52) and the support base (4).

7. The adjustable sliding device according to claim 6, characterized in that: The drive locking structure includes a drive bolt (54) whose axial direction is along the X direction and is screwed into both the slider (52) and the support base (4).

8. The adjustable sliding device according to claim 6, characterized in that: The slider (52) is provided with a guide pin (521), the connecting rod (53) is hinged to the guide pin (521), and the support base (4) is also provided with a guide groove (44) extending linearly in the X direction, and the guide pin (521) is located in the guide groove (44).

9. The adjustable sliding device according to claim 6, characterized in that: The adjustment mechanism (5) further includes a reset spring (55) disposed between the slider (52) and the support base (4). The elastic force of the reset spring (55) is used to drive the slider (52) to move along the X direction from the side where the lower end (412) of the adjustment groove (41) is located to the side where the higher end (411) is located.

10. A door or window, comprising a fixed frame (1) and a door or window sash (2), characterized in that: It also includes an adjustable sliding device (3) as described in any one of claims 1 to 9, wherein the sliding mechanism (6) of the adjustable sliding device (3) is installed on the lower frame of the fixed frame (1), and the support base (4) is fixedly supported at the bottom of the door and window sash (2).

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