Trackless underhung overhead door

Abstract

The application discloses a trackless bottom bearing sliding door, which comprises a door leaf, a lower pulley, a hidden guiding mechanism and the like. The lower pulley is installed at the bottom of the door leaf and is used for supporting the door leaf and providing sliding of the door leaf. The hidden guiding mechanism is used for providing guidance of the bottom of the door leaf and is always hidden by the door leaf. Firstly, the hidden guiding mechanism plays a guiding and linkage role on the door leaf to replace the lower track, and then solves problems such as dust accumulation and cleaning obstruction of the lower track. Secondly, the hidden guiding mechanism is always hidden at the bottom of the door leaf in all states of the door leaf, enhances compactness of the overall structure of the sliding door and improves the aesthetic property of the sliding door.

Description

Technical Field

[0001] This invention relates to the field of door and window accessories, and more particularly to trackless load-bearing sliding doors. Background Technology

[0002] Sliding doors are generally classified into top-load-bearing sliding doors, bottom-load-bearing sliding doors, and double-load-bearing sliding doors. Each of these three types of sliding doors has its own advantages and disadvantages.

[0003] In existing sliding doors:

[0004] Top-load-bearing sliding doors have the advantages of no bottom track, a clean overall space, and smooth sliding over time as the hanging track generally doesn't get cluttered. The disadvantages are that the hanging rollers are prone to damage over time, the door leaf may sag, and repairs are more difficult once problems occur.

[0005] Bottom-supported sliding doors (such as) Figure 10 The advantages and disadvantages of the sliding door are the opposite of those of the top-load-bearing sliding door. The advantages are that the lower rollers are supported by the ground, making them less prone to damage, and the door leaf generally does not sag. The lower rollers are also easier to repair if they malfunction. The disadvantages are that a lower track is required to guide the door leaf, making the overall space less neat. The lower track is prone to accumulating dust and debris, which can make the door leaf difficult to push over time. In addition, the presence of the lower track also prevents intelligent cleaning robots from passing through the door.

[0006] Double-load-bearing sliding doors overcome the disadvantages of top-load-bearing and bottom-load-bearing sliding doors. They do not require a bottom track, the hanging rollers are less prone to damage, and the door leaf will not sag. However, there are also new disadvantages. Due to the double constraints at the top and bottom, the precision of the parts and installation is relatively high. Furthermore, if the parts deform over a long period of time, the door leaf may become unable to be pushed. Also, if the lower rollers come into contact with debris, the door leaf may jump up, and there is a possibility that the hanging rollers may derail. Summary of the Invention

[0007] In order to overcome at least one of the defects of the prior art, the present invention provides a trackless bottom-load-bearing sliding door. While retaining the advantages of the original sliding door, it can still provide door leaf guidance without setting a bottom track, resulting in a simple overall space. It also solves the problems caused by dust accumulation and debris jamming due to the bottom track, and can be adapted to intelligent cleaning robots even without a bottom track.

[0008] The technical solution adopted by this invention to solve its problem is:

[0009] Door leaf;

[0010] A sliding wheel is installed at the bottom of the door leaf to support the door leaf and provide sliding for the door leaf;

[0011] A concealed guide mechanism is provided to guide the bottom of the door leaf and is always concealed by the door leaf.

[0012] Furthermore, the concealed guide mechanism includes a fixed-point guide component;

[0013] The fixed-point guide assembly includes an adjustment part that can change its position on the horizontal plane and is engaged with the door leaf to guide the movement of the door leaf.

[0014] Furthermore, the positioning and guiding component also includes a body;

[0015] The adjustment unit includes a guide post;

[0016] The guide post is disposed on the body and is not coaxial with the body; the guide post can rotate around the body to change the relative position of the guide post with respect to the center of the body.

[0017] Furthermore, the adjustment unit also includes an eccentric stage;

[0018] The eccentric platform is disposed on the main body, and the guide post is disposed on the eccentric platform.

[0019] Furthermore, the fixed-point guiding assembly also includes a guiding buffer, which includes a guide wheel;

[0020] The guide wheel is rotatably mounted on the guide post and is used to engage with the door leaf to limit the movement trajectory of the door leaf.

[0021] Furthermore, the guiding buffer also includes a buffer element;

[0022] The buffer acts on the guide wheel to cushion the guide wheel when it is subjected to the impact of the door leaf.

[0023] Furthermore, the concealed guide mechanism also includes a motion guide component;

[0024] The number of doors is at least two;

[0025] The motion guiding assembly includes a fixing part and a guiding part, the fixing part being connected to one of its door panels and the guiding part being movably connected to another adjacent door panel.

[0026] Furthermore, the fixing part is provided with a wedge groove, which is used to install a clamping component.

[0027] Furthermore, the wedge-tightening groove is an inclined groove.

[0028] Furthermore, the motion guiding assembly also includes a base.

[0029] The fixing part and the guide part are respectively disposed at both ends of the base.

[0030] Furthermore, the fixing part includes a clamping seat;

[0031] The clamping seat is located at one end of the base, and the wedge groove is located on the clamping seat.

[0032] Furthermore, the fixing part also includes an adjusting seat, and the clamping seat is disposed on the adjusting seat;

[0033] The adjusting seat is provided with an adjusting hole, and the fixing member passes through the adjusting hole to fix or move the adjusting seat relative to the base.

[0034] Furthermore, when the adjusting seat is in the active state, the adjusting seat can move along the axial direction of the guide portion.

[0035] Furthermore, the base is a U-shaped base.

[0036] Furthermore, the guide section includes guide wheels;

[0037] The guide wheel is rotatably mounted on the base.

[0038] In summary, the trackless, load-bearing sliding door provided by this invention has the following technical advantages:

[0039] First, the concealed guide mechanism limits the movement trajectory of the fixed door leaf, thus limiting and guiding it when the door leaf is pulled, preventing the door leaf from deviating from its trajectory or swinging. Second, regardless of whether the door is open or closed, the concealed guide mechanism is always hidden at the bottom of the door leaf, preventing the concealed guide mechanism from being exposed and avoiding obstruction of cleaning the external space, while improving the overall simplicity and aesthetics of the sliding door.

[0040] In summary, the hidden guide mechanism guides the bottom of the door panel, replacing the lower track and thus solving the problems of dust accumulation, obstruction of cleaning, and aesthetic impact associated with the lower track. Attached Figure Description

[0041] Figure 1 This is a diagram showing the usage state of the hidden guide mechanism of the present invention;

[0042] Figure 2 for Figure 1 Enlarged view at point D;

[0043] Figure 3 for Figure 1 Enlarged view at point E in the middle;

[0044] Figure 4 This is a schematic diagram of the motion guiding component of the present invention;

[0045] Figure 5 This is a diagram showing the usage state of the motion guide component of the present invention.

[0046] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0047] Figure 7 This is a schematic diagram of the point-guided component of the present invention;

[0048] Figure 8 This is a diagram showing the usage state of the positioning and guiding component of the present invention;

[0049] Figure 9 for Figure 8 Enlarged view of point B in the middle;

[0050] Figure 10 This is a schematic diagram of an existing sliding door.

[0051] The meanings of the reference numerals in the attached figures are as follows:

[0052] 1. Fixed-point guide assembly; 11. Adjustment part; 111. Eccentric platform; 112. Guide column; 12. Body; 13. Guide buffer part; 131. Guide wheel; 132. Buffer component; 14. Isolation platform; 15. Limiting component; 2. Motion guide assembly; 21. Fixing part; 211. Pressing seat; 212. Adjusting seat; 2121. Adjusting hole; 22. Guide part; 221. Guide wheel; 222. Locking component; 23. Base; 3. Fixed fan; 4. Movable fan; 5. Clamping component; 6. Wedge groove; 7. Fixing component; 8. Upper pulley; 9. Lower pulley; 10. Connecting groove; 16. Upper mounting space; 17. Lower mounting space; 18. Upper rail; 19. Pressing protrusion; 20. Baffle plate; 201. Snap-fit ​​protrusion; 202. Snap-fit ​​groove; 24. Lower rail. Detailed Implementation

[0053] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0054] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0056] Example 1

[0057] See Figure 7 This invention discloses a trackless, load-bearing sliding door, which includes:

[0058] The fixed-point guide component 1 includes an adjustment part 11 and a body 12.

[0059] Specifically, the adjustment unit 11 includes an eccentric platform 111 and a guide post 112. The eccentric platform 111 is located at the top of the main body 12, and the guide post 112 is located at the top of the eccentric platform 111. In particular, the central axis of the guide post 112 is not collinear with the central axis of the main body 12, but both are perpendicular to the eccentric platform 111.

[0060] Preferably, the eccentric platform 111 in this embodiment is a polygonal platform. More preferably, the polygonal platform has six sides, and more preferably a regular hexagon. The purpose is that after the body 12 is nailed into the fixing object, the structure of the regular hexagonal eccentric platform 111, which is the same as the screw head, makes it easier for tools such as pliers to clamp and rotate. In this embodiment, the central axis of the body 12 is aligned with the center of the bottom surface of the hexagonal eccentric platform 111.

[0061] In addition, the eccentric platform 111 can also be, but is not limited to, a circle, a rectangle or a square.

[0062] In addition, to improve the fixing effect between the body 12 and the fixed object, the outer periphery of the body 12 is provided with threads. Therefore, it can be understood that the body 12 and the fixed object are connected by threads.

[0063] Furthermore, it also includes a guide buffer 13, which includes a guide wheel 131 and a buffer member 132. The guide wheel 131 is rotatably mounted on the guide post 112. Since the guide wheel 131 is used to engage with the external moving part to limit its trajectory when the external moving part moves, the guide wheel 131 will be impacted by the external moving part. Therefore, one end of the buffer member 132 is connected to the guide wheel 131 and the other end is connected to the eccentric table 111.

[0064] Preferably, the buffer 132 is a spring, which is sleeved on the guide post 112 and located between the guide wheel 131 and the eccentric platform 111. In this embodiment, the guide wheel 131 has a structure with a larger upper end and a smaller lower end.

[0065] In other embodiments, the buffer 132 may also be, but is not limited to, a spring sheet. Similarly, one end of the spring sheet is connected to the guide wheel 131, and the other end is connected to the eccentric platform 111.

[0066] In particular, to prevent the open-end pliers from clamping the bottom end of the buffer 132 when it is engaged with the eccentric platform 111, thereby causing damage to the buffer 132, in this embodiment, a cylindrical isolation platform 14 is provided around the bottom of the guide post 112, and the end of the buffer 132 away from the guide wheel 131 abuts against the top surface of the isolation platform 14.

[0067] Furthermore, the guide wheel 131 is engaged with the external moving part. Under the condition of long-term movement of the external moving part, the friction between the external moving part and the guide wheel 131 makes the wear of the guide wheel 131 inevitable, so the guide wheel 131 needs to be replaced. To address this issue, the fixed-point guide assembly 1 also includes a limiting member 15. Specifically, the limiting member 15 is a limiting frustum. A stud is provided at the bottom of the limiting frustum. The stud is screwed to the top of the guide post 112 to limit the guide wheel 131 to the guide post 112. It should be noted that, in order to avoid interference of the limiting member 15 with the guide wheel 131, the maximum diameter of the limiting frustum is smaller than the minimum diameter of the guide wheel 131.

[0068] Example 2

[0069] See Figure 8 and Figure 9 The fixed-point guide component 1 of Embodiment 1 is applied to a door and window system. This embodiment takes a double-stroke sliding door as an example. It can be seen that the sliding door includes two door leaves and a lower roller 9 set at the bottom of the door leaves. An upper roller 8 is set on the top wall of the door leaves. The upper roller 8 is inserted into the upper track 18 to hide itself in the upper track 18. At the same time, the upper roller 8 slides in the upper track 18 to guide the top of the door leaves. More preferably, in order to cover and hide the gap between the upper track 18 and the door leaves, a baffle plate 20 is set on both sides of the gap. Specifically, the baffle plate 20 is provided with multiple snap-fit ​​protrusions 201. The upper track 18 is provided on both sides with snap-fit ​​grooves 202 corresponding to the snap-fit ​​protrusions 201. The snap-fit ​​protrusions 201 snap into the snap-fit ​​grooves 202, that is, the baffle plate 20 is installed on the side of the gap to cover the gap.

[0070] At least one connecting groove 10 for engaging the guide wheel 131 is provided at the bottom of the door leaf, and pressing protrusions 19 are provided on both sides of the connecting groove 10. It should be noted that the width of the connecting groove 10 is slightly larger than the maximum diameter of the guide wheel 131. Preferably, in this embodiment, the minimum distance between the two pressing protrusions 19 is smaller than the maximum diameter of the guide wheel 131 and larger than the diameter of the limiting frustum.

[0071] The following is the installation process of the fixed-point guide component 1: First, the installation position of the door leaf is calculated to determine the position of the moving path of the connecting groove 10. A screw hole is opened below the position near the midpoint of the moving path. Combined with the eccentric structure of the fixed-point guide component 1, the guide post 112 of the fixed-point guide component 1 is located at the midpoint of the moving path. Specifically, two door leaves correspond to two fixed-point guide components 1, and therefore correspond to two screw holes. The position of the two screw holes is as follows: when the two door leaves are unfolded to close the sliding door, screw holes are opened below the connecting groove 10 of the overlapping part of the two door leaves respectively. The bodies 12 of the two fixed-point guide components 1 are screwed into the two screw holes.

[0072] Next, the top of the door leaf slides into the upper track 18 via the upper wheel. At this time, the lower wheel 9 contacts the ground. Simultaneously, the connecting groove 10 of the door leaf is fitted onto the guide wheel 131. If the connecting groove 10 cannot be fitted onto the guide wheel 131 due to the previous screw hole positioning deviation, the open-end pliers are clamped onto the eccentric table 111. The open-end pliers are rotated to rotate the guide post 112 and the guide wheel 131 directly below the center line of the connecting groove 10 of the door leaf. In this way, the connecting groove 10 of the door leaf can be fitted onto the guide wheel 131 below it. Thus, the fixed-point guide component 1 guides the lower part of the door leaf and can always be hidden under the door leaf, eliminating the need for the lower track and facilitating floor cleaning.

[0073] Both of the aforementioned door panels are movable. In other embodiments, one of the door panels can be fixed. In this case, it is only necessary to set the fixed-point guide component 1 for the movable door panel. However, the fixed-point guide component 1 is still set below the connecting groove 10 of the overlapping part of the two door panels when the two door panels are opened and the door is closed, so as to ensure that the fixed-point guide component 1 can always be covered by the movable door panel.

[0074] Example 3

[0075] Regarding the rotation of the guide post 112 around the body 12, another embodiment can rotatably mount the eccentric platform 111 on the body 12. That is, when it is necessary to change the position of the guide post 112, the position of the guide post 112 can be changed by rotating the eccentric platform 111, without rotating the body 12, so as to prevent the body 12 from loosening with the fixed object.

[0076] Specifically, the top of the body 12 is provided with a fastening thread and a limiting protrusion. The limiting protrusion is located below the fastening thread. The eccentric platform 111 is provided with a connecting hole. The connecting hole is sleeved on the body 12, and the eccentric platform 111 is finally located between the limiting protrusion and the fastening thread. The eccentric platform 111 is fixed on the body 12 by fastening the fastening thread with a fastening nut.

[0077] If it is necessary to rotate the eccentric table 111 to change the relative position of the guide post 112 and the body 12, the fastening nut can be loosened, then the eccentric table 111 can be rotated, and the fastening nut can be tightened again after the guide post 112 reaches the designated position.

[0078] Example 4

[0079] See Figure 4 It also includes motion guide component 2, which includes:

[0080] Specifically, in this embodiment, the base 23 is U-shaped.

[0081] The guide part 22 includes a guide wheel 221, which is rotatably disposed at one end of the base 23. Specifically, the rotation axis of the guide wheel 221 is parallel to the opening direction of the U-shaped base 23.

[0082] The fixing part 21 is provided at the other end of the base 23 and includes a clamping seat 211. The two ends of the clamping seat 211 protrude from two sides of one end of the base 23, which are perpendicular to the width direction of the opening of the base 23. A wedge groove 6 is provided on the side of the clamping seat 211 away from the base 23. The wedge groove 6 is a groove with a side opening.

[0083] Example 5

[0084] See Figure 5 and Figure 6 The motion guide component 2 is applied to the sliding door and window system. This embodiment takes the sliding door system as an example. The sliding door system of this embodiment includes three door panels. Similarly, the bottom of the door panel is provided with an upper pulley 8, an upper track 18 and a cover plate 20, as in embodiment two. These will not be described again here.

[0085] Specifically, one door leaf is a fixed leaf 3, and the other door leaves are movable leaves 4. The two movable leaves 4 are arranged adjacent to each other. These two movable leaves 4 are named the middle movable leaf and the side movable leaf, respectively. The end of the fixed leaf 3 that is attached to the side of the sliding door frame is the rear end of the fixed leaf 3, and the other end is the front end of the fixed leaf 3. When the sliding door is in the open state, the ends of the middle movable leaf and the side movable leaf that are close to the side of the sliding door frame are the rear end of the middle movable leaf and the rear end of the side movable leaf, respectively. The other ends of the middle movable leaf and the side movable leaf are the front end of the middle movable leaf and the front end of the side movable leaf, respectively.

[0086] The bottom sides of the aforementioned door leaf are respectively provided with connecting grooves 10 for installing motion guide components 2. In particular, these connecting grooves 10 can be used to connect the fixing part 21 or the guide part 22. Specifically, the two side walls of the connecting groove 10 are provided with pressing protrusions 19 facing each other. The upper part of the pressing protrusions 19 and the inner wall of the connecting groove 10 form an upper mounting space 16 for installing the fixing part 21, that is, the mounting position of the fixing part 21. The lower part of the pressing protrusions 19 and the side wall of the connecting groove 10 form a lower mounting space 17 for installing the guide part 22.

[0087] In this embodiment, the three door panels use two motion guide components 2.

[0088] For ease of description, the following names are used for each connection slot 10:

[0089] The connecting slots 10 at the bottom of the fixed fan 3, which are far from and near the middle movable fan, are the first connecting slot and the second connecting slot, respectively.

[0090] The connecting slots 10 at the bottom of the middle movable fan near the fixed fan 3 and near the side movable fan are respectively the third connecting slot and the fourth connecting slot.

[0091] The connecting slots 10 at the bottom of the side movable fan, near and far from the middle movable fan, are the fifth connecting slot and the sixth connecting slot, respectively.

[0092] First, the motion guide assembly 2, which connects the fixed fan 3 and the intermediate movable fan, has its guide wheel 221 inserted into the lower mounting space 17 of the third connecting groove of the intermediate movable fan; the fixing part 21 is connected to the upper mounting space 16 of the second connecting groove at the bottom of the fixed fan 3. In particular, the fixing part 21 is fixed to the front end of the connecting groove 10 of the fixed fan 3.

[0093] Specifically, the clamping seat 211 is fixed to the fixed fan 3 as follows: the clamping seat 211 is inserted into one end of the second connecting groove of the fixed fan 3. At this time, the two ends of the bottom surface of the clamping seat 211 abut against the top surface of the clamping protrusion 19 in the two second connecting grooves respectively. Then, the clamping member 5 is pushed into the wedge clamping groove 6 from the outer end of the wedge clamping groove 6. It should be noted that the distance from the lowest point of the wedge clamping groove 6 to the highest point of the upper mounting space 16 of the second connecting groove is less than the height of the clamping member 5. Therefore, when the clamping member 5 enters the wedge clamping groove 6, it pushes the clamping seat 211 downward. The bottom surface of the clamping seat 211 is pressed and tightened with the top surface of the clamping protrusion 19. Finally, the clamping seat 211 is tightened to the front end of the second connecting groove. Specifically, the wedge clamping groove 6 in this embodiment can be a semi-circular groove, and the corresponding clamping member 5 is a pin.

[0094] Alternatively, if the guide wheel 221 of the motion guide assembly 2 connecting the fixed fan 3 and the intermediate movable fan is inserted into the lower mounting space 17 of the second connecting groove of the fixed fan 3, then conversely, the clamping seat 211 of the motion guide assembly 2 is installed in the upper mounting space 16 of the third connecting groove of the intermediate movable fan, and the clamping seat 211 is located at the rear end of the third connecting groove.

[0095] Secondly, regarding the motion guide components 2 for the side movable fan and the middle movable fan, in this embodiment,

[0096] Its guide wheel 221 is inserted into the lower mounting space 17 of the fourth connecting groove of the middle movable door; the fixing part 21 is connected to the upper mounting space 16 of the fifth connecting groove of the side movable door. In particular, the fixing part 21 is fixed to the rear end of the connecting groove 10 of the side movable door. The fixing method of the fixing part 21 and the side movable door is the same as that of the fixing part 21 connected to the fixed door 3, which will not be described again here.

[0097] If the guide wheel 221 of the motion guide assembly 2 between the side movable fan and the middle movable fan is inserted into the lower mounting space 17 of the fifth connecting groove of the side movable fan, then conversely, the clamping seat 211 of the motion guide assembly 2 is installed in the upper mounting space 16 of the fourth connecting groove of the middle movable fan, and the clamping seat 211 is located at the front end of the connecting groove 10.

[0098] In other embodiments, the wedge groove 6 can be provided on the outer wall of the clamping seat 211 (that is, the side wall away from the guide wheel 221 and away from the center of the base 23 at that end). Correspondingly, the clamping seat 211 protrudes from the body 12 on the side away from the wedge groove 6. Similarly, when the clamping member 5 is pushed into the wedge groove 6, the part of the clamping seat 211 protruding from the body 12 is pressed against the side wall of the corresponding mounting space 16.

[0099] Specifically, the end of the connecting groove 10 with the guide wheel 221 will be closed after the motion guide assembly 2 is installed.

[0100] The following example illustrates the movement process of the sliding door system using an embodiment where the guide wheels 221 of both motion guide components 2 are located in the middle movable leaf: In the initial state, the sliding door is in the open state, that is, the rear ends of the three door leaves are aligned and closely attached to the side of the door frame where the rear end of the fixed leaf 3 is closely attached.

[0101] Pulling the side sliding door in the closing direction causes the motion guide component 2 at the rear end of the side sliding door to move forward with it. The guide wheel 221 of the motion guide component 2 moves in the lower mounting space 17 of the fourth connecting groove of the middle sliding door. If the guide wheel 221 contacts the rear side wall of the lower mounting space 17, it will rotate. When the guide wheel 221 of the motion guide component 2 abuts against the front end of the fourth connecting groove of the middle sliding door, the middle sliding door also moves forward due to the pulling of the side sliding door. However, the position of the motion guide component 2 between the middle sliding door and the fixed door 3 remains unchanged. When the rear end of the third connecting groove of the middle sliding door abuts against the guide wheel 221 of the motion guide component 2, the side door and the middle door stop moving, which means that the sliding door is closed at this moment.

[0102] Opening a sliding door is the reverse operation of closing it; the principles are the same, so I won't go into detail here.

[0103] In other embodiments, the fixed fan 3 can be replaced with a movable fan 4, that is, all three door panels are movable fans 4; if more movable fans 4 need to be added, they can be added sequentially on the side of the movable fan away from the middle movable fan, and then the newly added movable fan 4 can be connected to the previous movable fan 4 through the motion guide component 2. The connection principle is the same as before, and will not be repeated here.

[0104] In summary, it should be noted that the number of door panels must be at least two. All door panels can be movable panels 4, or one of them can be a fixed panel 3, and the others can be movable panels 4.

[0105] Example 6

[0106] See Figure 4 and Figure 6 Based on Embodiments 4 and 5, the assembly of the clamping member 5 and the wedge groove 6 is a compression wedge clamping. To further improve the wedge clamping effect, in this embodiment, the wedge groove 6 is an inclined groove, which is inclined from the outer end to the inner end, and the depth of the wedge groove 6 gradually decreases from the outer end to the inner end.

[0107] As can be understood from the above, after the clamping seat 211 is installed into the corresponding upper mounting space 16, its deepest end faces outward. At this time, the maximum distance from the inclined hole to the top wall of the upper mounting space 16 is less than or equal to the nominal diameter of the screw. The screw is screwed into the inclined hole from the deepest end. Similarly, the top of the screw abuts against the top wall of the corresponding upper mounting space 16. As the screw is screwed in and the depth of the inclined hole decreases, the screw pushes the clamping seat 211 more strongly. Therefore, the clamping effect of the clamping seat 211 on the clamping protrusion 19 or the inner wall of the upper mounting space 16 is more obvious.

[0108] Furthermore, to enhance the compatibility between the inclined groove and the screw, the width of the inclined hole gradually decreases from the outer end to the inner end to form a tapered groove. The tapered groove and the screw have a tighter fit, thereby improving the fixation of the clamping seat 211 in the corresponding mounting space 16.

[0109] Example 7

[0110] See Figure 4 and Figure 6 Based on Embodiments 4 and 5, it is known that the clamping seat 211 of the motion guide component 2 needs to be set in the corresponding upper mounting space 16. Therefore, in order to ensure that the clamping seat 211 fits the upper mounting space 16 when it is installed, in this embodiment, the fixing part 21 also includes an adjusting seat 212. Specifically, preferably, the clamping seat 211 is set at one end of the adjusting seat 212. The adjusting seat 212 is provided with at least one adjusting hole 2121. Preferably, there are two adjusting holes 2121. The adjusting holes 2121 are elongated holes set along the length direction of the adjusting seat 212. The fixing member 7 passes through the adjusting hole 2121 to lock the adjusting seat 212 onto the base 23. Preferably, the fixing member 7 is a fixing bolt.

[0111] The purpose of setting the adjustment seat 212 is to flexibly adjust the position of the clamping seat 211 along the axis of the guide wheel 221. The specific adjustment process is as follows: loosen the fixing bolts to fix the adjustment seat 212. At this time, the adjustment seat 212 is in the movable state. Adjust the position of the adjustment seat 212 along the axis of the guide wheel 221 according to the installation needs. The clamping seat 211 on the adjustment seat 212 also moves accordingly. After completion, tighten the fixing bolts.

[0112] As can be seen from the above, in order to further improve the applicability of the motion guide assembly 2, the width of the adjustment hole 2121 can be increased on the basis of the above, so that the adjustment seat 212 can be adjusted in the direction perpendicular to the axis of the guide wheel 221, that is, to adjust the distance between the adjustment seat 212 and the guide wheel 221.

[0113] Example 8

[0114] See Figure 4 and Figure 6 Based on Embodiments 4 and 5, it is known that the guide wheel 221 will have rolling friction with the side wall of the connecting groove 10, so the guide wheel 221 will be worn. In order to facilitate the replacement of the guide wheel 221, the guide part 22 also includes a locking member 222. Preferably, the locking member 222 is a limiting bolt. The limiting bolt passes through the guide wheel 221 to detachably connect the guide wheel 221 to the end of the base 23. When the guide wheel 221 is worn, the limiting bolt can be removed to replace the guide wheel 221.

[0115] Example 9

[0116] See Figure 1 , Figure 2 and Figure 3 Based on Embodiment 1 and Embodiment 4, the fixed-point guide component 1 and the motion guide component 2 are applied to the sliding door. In this embodiment, the sliding door includes three door panels, one of which is an outer door panel 3, and the other two door panels are movable panels 4. The two movable panels 4 are adjacent to each other and are located on the same side of the fixed door panel 3. Specifically, the movable panel 4 is provided with an upper pulley 8 at the top and a lower pulley 9 at the bottom. The two movable panels 4 are named as the middle movable panel and the side movable panel, respectively.

[0117] The end of the fixed fan 3 that is attached to the side of the sliding door frame is the rear end of the fixed fan 3, and the other end is the front end of the fixed fan 3. When the sliding door is in the open state, the ends of the side movable fan, the middle movable fan, and the side movable fan that are attached to the side of the sliding door frame are the rear end of the middle movable fan and the rear end of the side movable fan, respectively. The other ends of the middle movable fan and the side movable fan are the front end of the middle movable fan and the front end of the side movable fan, respectively.

[0118] The bottom sides of the door leaf are respectively provided with connecting grooves 10 for installing the fixed guide component 1 and the motion guide component 2. Specifically, the two side walls of the connecting groove 10 are provided with pressing protrusions 19. The upper part of the pressing protrusion 19 and the inner wall of the connecting groove 10 form an upper mounting space 16 for installing the fixing part 21, that is, the mounting position of the fixing part 21. The lower part of the pressing protrusion 19 and the side wall of the connecting groove 10 form a lower mounting space 17 for installing the guide part 22.

[0119] For ease of description, the connecting slots 10 at the bottom of the fixed fan 3 that are far from and near the middle movable fan are respectively: the first connecting slot and the second connecting slot.

[0120] The connecting slots 10 at the bottom of the middle movable fan near the fixed fan 3 and near the side movable fan are respectively the third connecting slot and the fourth connecting slot.

[0121] The connecting slots 10 at the bottom of the side movable fan, near and away from the middle movable fan, are: the fifth connecting slot and the sixth connecting slot.

[0122] The fixed-point guide assembly 1 is used in the first connecting slot near the middle movable fan. Specifically, the installation process of the fixed-point guide assembly 1 is as follows:

[0123] First, the installation position of the middle movable fan is determined by measuring the installation position of the middle movable fan. A screw hole is opened below the center line of the third connecting slot. The screw hole is located as follows: when the middle movable fan is opened to close the sliding door, screw holes are opened below the third connecting slot of the overlapping part of the middle movable fan and the fixed fan 3. At this time, the center of the body 12 and the guide column 112 are both below the center line of the same connecting slot 10. It can be understood that the projection of the fixed point guide component 1 perpendicular to the fixed fan 3 coincides with the fixed fan 3.

[0124] Next, the top of the middle movable fan slides to the upper track via the upper pulley 8, while the lower pulley 9 contacts the ground. Simultaneously, the third connecting groove of the middle movable fan is fitted onto the guide wheel 131. If the corresponding connecting groove 10 cannot be fitted onto the guide wheel 131 due to previous screw hole positioning deviation, the open-end clamps are engaged with the eccentric table 111. Rotating the open-end clamps will rotate the guide post 112 and the guide wheel 131 directly below the centerline of the third connecting groove of the middle movable fan. Then, the connecting groove 10 of the middle movable fan can be fitted onto the guide wheel below it. On wheel 131, it should be noted that at this time, the guide wheel 131 is located below the two pressing protrusions 19 of the third connecting groove, that is, the lower installation space 17 of the connecting groove 10. Thus, the fixed-point guide component 1 guides the middle movable fan at the bottom. When the middle movable fan is open and closed, the fixed-point guide component 1 is located at the front end and rear end of the connecting groove 10 of the middle movable fan near the fixed fan 3, respectively. The fixed-point guide component 1 is hidden under the middle movable fan, which not only achieves an aesthetic effect but also eliminates the need for a lower track, making it easier to clean the floor.

[0125] The connection between the middle movable fan and the side movable fan is made through the motion guide assembly 2.

[0126] Its guide wheel 221 is inserted into the lower mounting space 17 of the fourth connecting groove of the middle movable fan.

[0127] The fixing part 21 is connected to the upper mounting space 16 of the fifth connecting groove of the side movable door leaf. The fixing part 21 is fixed to the side movable door leaf in the following way:

[0128] The clamping seat 211 is inserted into the fifth connecting groove of the side movable fan from one end. At this time, the two ends of the bottom surface of the clamping seat 211 abut against the top surfaces of the two clamping protrusions 19 respectively. Then, the clamping member 5 is pushed into the wedge clamping groove 6 from the outer end of the wedge clamping groove 6. It should be noted that the distance from the lowest point of the wedge clamping groove 6 to the highest point of the upper mounting space 16 is less than the height of the clamping member 5. Therefore, when the clamping member 5 enters the wedge clamping groove 6, it pushes the clamping seat 211 downward, and the bottom surface of the clamping seat 211 is pressed and fastened to the top surface of the clamping protrusion 19. Specifically, the wedge clamping groove 6 in this embodiment can be a semi-circular groove, and the corresponding clamping member 5 is a pin. In addition, in this embodiment, the fixing part 21 is fixed to the rear end of the fifth connecting groove of the side movable fan.

[0129] If the guide wheel 221 of the motion guide assembly 2 between the side movable fan and the middle movable fan is inserted into the lower mounting space 17 of the fifth connecting groove of the side movable fan, then conversely, the clamping seat 211 of the motion guide assembly 2 is installed in the upper mounting space 16 of the fourth connecting groove of the middle movable fan, and the clamping seat 211 is located at the front end of the fourth connecting groove.

[0130] Specifically, the end of the connecting groove 10 with the guide wheel 221 will be closed after the motion guide assembly 2 is installed.

[0131] The following example illustrates the movement process of the sliding door system using a motion guide component 2 with the guide wheel 221 of the motion guide component 2 set in the middle movable leaf: In the initial state, the sliding door is in the open state, that is, the rear ends of the three door leaves are aligned and closely attached to the side of the door frame where the rear end of the fixed leaf 3 is closely attached.

[0132] Pull the side sliding door in the closing direction. At this time, the motion guide component 2 at the rear end of the side sliding door moves forward with the side sliding door. The guide wheel 221 of the motion guide component 2 moves in the lower mounting space 17 of the fourth connecting groove of the middle sliding door. During this process, if the guide wheel 221 contacts the side wall of the lower mounting space 17, the guide wheel 221 will rotate. When the guide wheel 221 of the motion guide component 2 abuts against the front end of the fourth connecting groove corresponding to the middle sliding door, the middle sliding door also moves forward due to the pulling of the side sliding door. However, at this time, the position of the fixed-point guide component 1 below the middle sliding door remains unchanged. When the rear end of the third connecting groove of the middle sliding door abuts against the guide wheel 131 of the fixed-point guide component 1, the side door and the middle door stop moving, that is, at this moment the sliding door is closed.

[0133] Opening a sliding door is the reverse operation of closing it; the principles are the same, so I won't go into detail here.

[0134] If more movable fans 4 are needed, they can be added sequentially on the side of the movable fans that are away from the middle movable fan. Then, the newly added movable fans 4 can be connected to the previous movable fans 4 through the quick-connect connection structure. The connection principle is the same as before, and will not be repeated here.

[0135] Alternatively, based on the above, a new movable fan 4 can be installed on the side of the fixed fan 3 where the movable fan 4 is not installed, and the movable fans 4 on both sides of the fixed fan 3 can be used to realize the bidirectional opening and closing of the sliding door.

[0136] In conclusion, compared to... Figure 10 In the case of a sliding door equipped with a lower roller 9 for lower load bearing and a lower track 24, the fixed-point guide component 1 of this embodiment can position and guide the middle movable fan, and the fixed-point guide component 1 is always hidden below the middle movable fan; the middle movable fan and the side movable fan are mutually restrained and guided by the motion guide component 2, and the motion guide component 2 is also hidden below the middle movable fan and the side movable fan, so the middle movable fan and the side movable fan better replace the lower track.

[0137] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A trackless, load-bearing sliding door, characterized in that: include: Door leaf; A sliding wheel (9) is installed at the bottom of the door leaf to support the door leaf and provide sliding for the door leaf; A concealed guide mechanism is provided to guide the bottom of the door leaf and is always concealed by the door leaf; The hidden guide mechanism includes a fixed-point guide component (1); the fixed-point guide component (1) includes an adjustment part (11), the adjustment part (11) can change its position on the horizontal plane, and it is engaged with the door leaf to guide the movement of the door leaf. The fixed-point guide assembly (1) further includes a body (12), the outer periphery of which is provided with threads, and the body (12) is used for threaded connection with a fixed object; the adjustment part (11) includes a guide post (112); the guide post (112) is disposed on the body (12) and is not coaxial with the body (12); the guide post (112) can rotate around the body (12) to change the relative position of the guide post (112) with respect to the center of the body (12); The adjustment unit (11) further includes an eccentric stage (111); the eccentric stage (111) is disposed on the body (12), and the guide column (112) is disposed on the eccentric stage (111); The fixed-point guiding component (1) further includes a guiding buffer part (13), which includes a guide wheel (131); the guide wheel (131) is rotatably disposed on the guide post (112) and is used to engage with the door leaf to limit the travel trajectory of the door leaf.

2. The trackless, load-bearing sliding door according to claim 1, characterized in that, The guiding buffer section (13) also includes a buffer element (132); The buffer (132) acts on the guide wheel (131) to buffer the guide wheel (131) when it is subjected to the impact of the door leaf.

3. The trackless, load-bearing sliding door according to any one of claims 1-2, characterized in that, The concealed guide mechanism also includes a motion guide component (2); The number of doors is at least two; The motion guide assembly (2) includes a fixing part (21) and a guide part (22), wherein the fixing part (21) is connected to one of its door panels, and the guide part (22) is movably connected to another adjacent door panel; Base (23); The fixing part (21) and the guide part (22) are respectively disposed at both ends of the base (23).

4. The trackless load-bearing sliding door according to claim 3, characterized in that, The fixing part (21) is provided with a wedge groove (6), which is used to install the clamping member (5).

5. The trackless load-bearing sliding door according to claim 4, characterized in that, The wedge groove (6) is an inclined groove.

6. The trackless, load-bearing sliding door according to claim 4, characterized in that, The fixing part (21) includes a clamping seat (211); The clamping seat (211) is located at one end of the base (23), and the wedge groove (6) is located on the clamping seat (211).

7. The trackless load-bearing sliding door according to claim 6, characterized in that, The fixing part (21) further includes an adjusting seat (212), and the pressing seat (211) is disposed on the adjusting seat (212); The adjusting seat (212) is provided with an adjusting hole (2121), and the fixing member (7) passes through the adjusting hole (2121) to fix or move the adjusting seat (212) relative to the base (23); When the adjusting seat (212) is in the active state, the adjusting seat (212) can move along the axial direction of the guide (22).

8. The trackless load-bearing sliding door according to claim 3, characterized in that, The base (23) is a U-shaped base.

9. The trackless load-bearing sliding door according to claim 3, characterized in that, The guide section (22) includes a guide wheel (221); The guide wheel (221) is rotatably mounted on the base (23).

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