Sliding door

Abstract

The utility model relates to the technical field of door products, in particular to a sliding door which comprises a door frame, a hanger rail mechanism installed through the door frame, a door leaf installed through the hanger rail mechanism and a ground guide mechanism, the ground guide mechanism comprises at least two horizontal guide wheels, and wheel shafts of the horizontal guide wheels are fixed to the ground; a guide groove is formed in the bottom face of a lower stile of the door leaf, the guide groove has a certain length in the moving direction of the door leaf, and the inner wall faces of the two side walls of the guide groove abut against the two horizontal guide wheels respectively. According to the sliding door adopting the technical scheme, on the premise that the advantages of the hanger rail type sliding door are not affected, the problem that the door leaf is prone to shaking in the moving process of the hanger rail type sliding door is solved, the hanger rail mechanism keeps working smoothly, the problems of jamming, noise, loosening and the like are solved, and the hanger rail mechanism is simple in structure, light in self weight, convenient to use and high in practicability. And the sinking problem is avoided.

Description

Technical Field

[0001] This application relates to the technical field of door products, and more specifically, to a sliding door. Background Technology

[0002] Sliding doors are a common building material used to divide interior spaces, generally including floor-mounted sliding doors and hanging sliding doors. Hanging sliding doors do not require an additional track on the ground during installation, thus not affecting walking and being easier to clean, making them more popular.

[0003] However, hanging-track sliding doors also have some technical problems. For example, the door panels move via a roller assembly at the top, and the weight of the door panels is borne by the roller assembly and the hanging track. After long-term wear and tear, problems such as jamming and noise can easily occur. Also, door panels often have a certain width, but in hanging-track sliding doors, the door panels are only mounted on the top of the roller assembly, while other parts are unrestricted. This can easily lead to door panel wobbling after prolonged use.

[0004] Chinese invention patent application CN115405181A, entitled "A Detachable Silent Hanging Rail Ultra-Narrow Sliding Door," describes a hanging rail sliding door that overcomes the problems of difficult roller assembly replacement and door leaf wobbling by improving the hanging rail mechanism. Specifically, a first screw is threaded through the center of the hanging rail base, and a fixing sleeve is threaded onto the bottom of the first screw, located below the hanging rail base. A second screw is threaded through the bottom of the fixing sleeve, and a sliding door fixing component is threaded onto the bottom of the second screw. The sliding door is fixed to the bottom of the fixing component. However, this structure actually increases the load on the hanging rail, easily causing the hanging rail to shift or sink. Meanwhile, the aforementioned invention patent application solves the problem of excessive door leaf movement speed through the magnetic attraction between the iron rotor (iron ball) in the roller and the first magnetic piece at the bottom of the positioning plate, and achieves door leaf stability through the repulsive force between the first magnetic piece and a pair of second magnetic pieces. However, the rotation of the iron rotor generates considerable noise, and the iron balls in the rollers actually create magnetic interference with the first magnetic plate, which, while slowing down the door, also makes the door unstable. Furthermore, the repulsive force between the first magnetic plate and the pair of second magnetic plates can only maintain the door's stability from the top, and cannot solve the problem of door swaying caused by external factors such as movement or wind.

[0005] In summary, existing technologies lack a way to improve the problem of jamming and shaking during the movement of sliding doors. Utility Model Content

[0006] The purpose of this application is to provide a sliding door to solve the problem of jamming and wobbling in existing hanging-track sliding doors after prolonged use. The specific technical solution adopted is as follows:

[0007] A sliding door includes a door frame, a hanging rail mechanism mounted through the door frame, a door leaf mounted through the hanging rail mechanism, and a ground guide mechanism. The ground guide mechanism includes at least two horizontal guide wheels, the axles of which are fixed to the ground. A guide groove is formed on the bottom surface of the lower sill of the door leaf. The guide groove has a certain length along the moving direction of the door leaf, and the inner walls of the two side walls of the guide groove abut against the two horizontal guide wheels respectively.

[0008] Preferably, the guide groove has end plates at both ends that connect to the two side walls.

[0009] Preferably, when the door leaf moves to the end position, the end plate abuts against the horizontal guide wheel, or there is a distance between the end plate and the horizontal guide wheel.

[0010] Preferably, the line connecting the axes of the two horizontal guide wheels can be obliquely intersecting the direction of movement of the door leaf, and the rims of the two horizontal guide wheels abut against each other.

[0011] Preferably, the horizontal guide wheel includes an upper wheel and a lower wheel that are spaced apart on the wheel axle. The inner wall of the guide groove has a limiting component that can be engaged between the upper wheel and the lower wheel. The limiting component has a certain length along the moving direction of the door leaf.

[0012] Preferably, the upper wheel and the lower wheel are connected by multiple columns, which are arranged in an array around the wheel axle; the limiting component is a rack, and the protruding teeth on the rack can mesh with the gaps between the columns.

[0013] Preferably, the limiting component is a resin rack.

[0014] Preferably, the deceleration bar is rotatably mounted on the bottom surface of the lower wheel, and when the horizontal guide wheel is stationary, the deceleration bar is vertically mounted and its bottom surface is grounded.

[0015] Preferably, the ground guiding mechanism includes three horizontal guide wheels. The first horizontal guide wheel abuts against the inner wall surface of the inner sidewall, and the second and third horizontal guide wheels abut against the inner wall surface of the outer sidewall. The first horizontal guide wheel abuts against the second and third horizontal guide wheels respectively, and the second and third horizontal guide wheels are spaced apart from each other.

[0016] Preferably, brush strips are provided on the edge of the guide groove.

[0017] A sliding door using the technical solution of this application does not require a track on the ground, and the ground guide mechanism itself is not exposed. Therefore, without affecting the advantages of the hanging-track sliding door, the movement of the door leaf can be limited from the bottom, solving the problem of door leaf wobbling during the movement of the hanging-track sliding door. As feedback, the stable movement of the door leaf allows the hanging track mechanism to maintain its smooth operation, avoiding problems such as jamming, noise, and loosening. In particular, due to the limiting effect of the ground guide mechanism, the hanging track mechanism can use a simpler structure, reducing its weight and preventing it from sagging. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of a sliding door provided in Embodiment 1 of this application.

[0020] Figure 2 This is a schematic diagram of the ground guidance mechanism provided in Embodiment 1 of this application.

[0021] Figure 3 This is a schematic diagram of the layout of the horizontal guide wheel provided in Embodiment 2 of this application.

[0022] Figure 4 This is a schematic diagram of a sliding door provided in Embodiment 3 of this application.

[0023] Figure 5 This is a schematic diagram of the ground guidance mechanism provided in Embodiment 4 of this application.

[0024] Figure 6 This is a schematic diagram of the structure of the horizontal guide wheel provided in Embodiment 5 of this application.

[0025] Figure 7 This is a schematic diagram showing the cooperation relationship between the limiting component and the horizontal guide wheel provided in Embodiment 5 of this application.

[0026] Among them, 1. door frame, 2. hanging rail mechanism, 3. door leaf, 4. ground guide mechanism, 5. speed reduction bar, 31. lower stile, 32. guide groove, 33. side wall, 33a. inner side wall, 33b. outer side wall, 34. end plate, 35. limiting component, 36. brush strip, 41. horizontal guide wheel, 411. upper wheel, 412. lower wheel, 413. column, 41a. first horizontal guide wheel, 41b. second horizontal guide wheel, 41c. third horizontal guide wheel, 42. wheel axle. Detailed Implementation

[0027] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] Example 1

[0029] Reference Figure 1 , 2 The sliding door shown includes a door frame 1, a hanging rail mechanism 2 installed through the door frame 1, a door leaf 3 installed through the hanging rail mechanism 2, and a ground guide mechanism 4 installed on the ground G.

[0030] The door frame 1 is fixedly installed inside the door opening, and it can be made of wood, resin or alloy.

[0031] The hanging rail mechanism 2 can be any of the existing technologies, such as including a hanging rail, multiple sets of roller assemblies (or sliders) that cooperate with the hanging rail, a mounting bracket installed on the roller assembly (or slider) for installing the door leaf, and damping components, etc. In particular, by means of the ground guide mechanism 4, the hanging rail mechanism 2 can use the most basic components.

[0032] Door leaf 3 is a prior art material, screwed and mounted on a fixed base. The door leaf has the basic structure of a door, such as a top stile, a cross stile, and a bottom stile 31. In this embodiment, the bottom surface of the bottom stile 31 of the door leaf 3 has a guide groove 32. Along the moving directions x1, x2 of the door leaf 3, the guide groove 32 has a certain length. For example, the guide groove 32 extends through the width of the door leaf 3. Preferably, the guide groove 32 is a blind groove, opening only on the side facing the ground; in other words, the guide groove 32 is formed by two side walls 33 and an end plate 34 connecting the two side walls.

[0033] A brush strip 36 is attached to the edge of the guide groove 32 to prevent dust and reduce noise.

[0034] The ground guiding mechanism 4 includes two horizontal guide wheels 41, with their axles 42 fixed to the ground. Those skilled in the art will understand that, to keep the door leaf vertical, when installing the two horizontal guide wheels 41, the midpoint of the line connecting the axes of the two horizontal guide wheels 41 should be vertically coplanar with the axis of the hanging rail. In use, the inner walls of the two side walls 33 of the guide groove 32 need to abut against the two horizontal guide wheels 41 respectively; therefore, the width of the two horizontal guide wheels 41 should be equal to the width of the guide groove 32. Simultaneously, when the door leaf 3 moves to its final position, such as at the side frame of the door frame, the end plate 34 abuts against the horizontal guide wheels 41, or maintains a distance from them.

[0035] In this embodiment, the line connecting the axes of the two horizontal guide wheels 41 is perpendicular to the moving directions x1 and x2 of the door leaf 3. At this time, the sum of the diameters of the two horizontal guide wheels 41 is equal to the width of the guide groove 32. Simultaneously, the sum of the distance from the horizontal guide wheel 41 to the side frame of the door frame and the diameter of the horizontal guide wheel 41 is equal to the length of the guide groove 32.

[0036] By utilizing the ground guide mechanism 4 in this embodiment, there is no need to install a track on the ground, and the ground guide mechanism 4 itself is not exposed. Therefore, it is possible to limit the movement of the door leaf 3 from the bottom without affecting the advantages of the sliding door, thus solving the problem of the door leaf 3 easily wobbling during the movement of the sliding door. As feedback, the stable movement of the door leaf 3 allows the sliding door mechanism to maintain its smooth operation, avoiding problems such as jamming, noise, and loosening. In particular, due to the limiting effect of the ground guide mechanism 4, the sliding door mechanism 2 can use a simpler structure, reducing its weight and preventing it from sinking.

[0037] Example 2

[0038] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 3 As shown, the two horizontal guide wheels 41 are staggered. In other words, the line connecting the axes of the two horizontal guide wheels 41 can intersect the moving directions x1 and x2 of the door leaf 3 at an oblique angle, and the rims of the two horizontal guide wheels 41 abut against each other. This design can improve the structural strength of the two horizontal guide wheels 41 as a whole, making the guidance they provide to the door leaf 3 more stable.

[0039] Example 3

[0040] Example 1 or 2 uses a door leaf 3 as an example. The difference between this example and Example 1 or 2 is that, referring to... Figure 4As shown, the system includes two door panels 3, and correspondingly, two sets of hanging rail mechanisms 2 and a ground guide mechanism 4. The ground guide mechanism 4 includes three horizontal guide wheels 41. The first horizontal guide wheel 41a abuts against the inner wall surface of the inner side wall 33a, while the second horizontal guide wheel 41b and the third horizontal guide wheel 41c abut against the inner wall surface of the outer side wall 33b. The first horizontal guide wheel 41a abuts against the second horizontal guide wheel 41b and the third horizontal guide wheel 41c respectively, and the second horizontal guide wheel 41b and the third horizontal guide wheel 41c are spaced apart.

[0041] In this embodiment, of the four side walls 33 of the two door panels 3, the two side walls 33 that are closer together are defined as inner side walls 33a, and the two side walls 33 that are farther apart are defined as outer side walls 33b. When the two door panels move simultaneously and in opposite directions, the movement of the airflow causes them to have a temporary tendency to move closer together and adhere to each other. Therefore, adding a horizontal guide wheel 41 to one side of the inner wall surface 33a can make the movement of the door panels 3 more stable.

[0042] Example 4

[0043] The difference between this embodiment and embodiments 1, 2, or 3 is that, referring to... Figure 5 As shown, the horizontal guide wheel 41 includes an upper wheel disc 411 and a lower wheel disc 412 spaced apart on the wheel axle 42. The inner wall of the sidewall of the guide groove 32 has a limiting member 35 that can engage between the upper wheel disc and the lower wheel disc 411 and 412. Along the moving direction of the door leaf 3, the limiting member 35 has a certain length. For example, the limiting member 35 is a rigid resin strip, glued or screwed onto the inner wall of the sidewall of the guide groove 32, and the length of the limiting member 35 is equal to the groove length of the guide groove 32.

[0044] When in use, the limiting component 35 is engaged between the upper wheel and the lower wheel 412, thereby making the guidance provided by the two horizontal guide wheels 41 to the door leaf 3 more stable on the one hand, and making the horizontal guide wheels 41 simultaneously play the role of assisting in supporting the weight of the door leaf 3 on the other hand, reducing the load on the hanging rail mechanism 2.

[0045] Example 5

[0046] The difference between this embodiment and embodiment 4 is that, referring to... Figure 6 , Figure 7 As shown, the upper wheel 411 and the lower wheel 412 are connected by multiple columns 413, which are arranged in an array around the axle 42. The limiting component 35 is a rack, and the protruding teeth on the rack can mesh with the gaps between the columns 413. At the same time, in order to avoid noise, the limiting component 35 is a resin rack.

[0047] Meanwhile, multiple mounting slots are formed on the bottom surface of the lower wheel 412, arranged in an array around the wheel axle 42. A rotating shaft is fixedly installed within each mounting slot, parallel to the chord direction of the lower wheel 412. The deceleration strip 5 is a strip-shaped component with a certain weight, such as a resin strip. One end of the deceleration strip 5 has a mounting ring or hook, and the deceleration strip 5 is connected to the rotating shaft pin via the mounting ring or hook at the end, allowing the connection to rotate. When the door leaf 3 moves, the horizontal guide wheel 41 rotates, and the deceleration strip 5 disengages from the ground G under centrifugal force; when the door leaf 3 stops, the horizontal guide wheel 41 also stops, and the bottom surface of the deceleration strip 5 touches the ground under its own weight. Thus, the deceleration strip 5 restricts the autonomous rotation of the horizontal guide wheel 41, and the horizontal guide wheel 41, to a certain extent, restricts the autonomous movement of the door leaf 3, serving a positioning function.

[0048] Because door leaf 3 has a relatively large weight, under normal circumstances, only a slight friction is needed to restrict its independent movement. When door leaf 3 is pushed, some of the pushing force is dispersed to overcome the friction between the deceleration bar 5 and the ground G, thereby preventing door leaf 3 from moving rapidly.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this application.

Claims

1. A sliding door, comprising a door frame, a hanging rail mechanism mounted via the door frame, and a door leaf mounted via the hanging rail mechanism, characterized in that, It also includes a ground guiding mechanism, which includes at least two horizontal guide wheels, the axles of which are fixed to the ground; a guide groove is provided on the bottom surface of the lower sill of the door leaf, and the guide groove has a certain length along the moving direction of the door leaf, and the inner wall surfaces of the two side walls of the guide groove respectively abut against the two horizontal guide wheels.

2. A sliding door according to claim 1, characterized in that, The guide groove has end plates at both ends that connect to the two side walls.

3. A sliding door according to claim 2, characterized in that, When the door panel moves to the end position, the end plate abuts against the horizontal guide wheel, or there is a distance between the end plate and the horizontal guide wheel.

4. A sliding door according to claim 1, characterized in that, The line connecting the axes of the two horizontal guide wheels can be obliquely intersecting the direction of movement of the door leaf, and the rims of the two horizontal guide wheels abut against each other.

5. A sliding door according to claim 4, characterized in that, The horizontal guide wheel includes an upper wheel and a lower wheel that are spaced apart on the wheel axle. The inner wall of the guide groove has a limiting component that can be engaged between the upper wheel and the lower wheel. The limiting component has a certain length along the moving direction of the door leaf.

6. A sliding door according to claim 5, characterized in that, The upper wheel and the lower wheel are connected by multiple columns, which are arranged in an array around the wheel axle; the limiting component is a rack, and the protruding teeth on the rack can mesh with the gaps between the columns.

7. A sliding door according to claim 6, characterized in that, The limiting component is a resin rack.

8. A sliding door according to claim 6 or 7, characterized in that, The deceleration bar is rotatably mounted on the bottom surface of the lower wheel. When the horizontal guide wheel is stationary, the deceleration bar is vertically mounted and its bottom surface is grounded.

9. A sliding door according to claim 1, characterized in that, The ground guiding mechanism includes three horizontal guide wheels. The first horizontal guide wheel abuts against the inner wall surface of the inner side wall, and the second and third horizontal guide wheels abut against the inner wall surface of the outer side wall. The first horizontal guide wheel abuts against the second and third horizontal guide wheels respectively, and the second and third horizontal guide wheels are spaced apart.

10. A sliding door according to claim 1, characterized in that, Brush strips are provided on the edge of the guide groove.

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