Bottom guide structure and guide wheel assembly of sliding door

Abstract

This utility model relates to a bottom guide structure and guide wheel assembly for a sliding door, used to solve the problem of bottom wobbling in existing sliding doors. It includes: a top plate with a connecting portion; and two side plates connected to the two sides of the top plate. The side plates are separated by a distance, and each side plate has a shaft hole. A shaft is fixed to the two shaft holes to support the positioning and rotation of a wheel. Each of the opposite inner surfaces of the side plates has a protruding protrusion, and the two protrusions are spaced apart. The guide wheel assembly can be attached to the bottom of the sliding door, allowing it to travel along the guide rail of the lower frame.

Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, specifically to a bottom guide structure for a sliding door and its guide wheel assembly. Background Technology

[0002] Please see Figure 1 As shown, this is a conventional sliding door structure. A series of hinged sliding flaps 91 are topped with suspension wheel assemblies 92. Each suspension wheel assembly 92 has two rotatable wheels 93, which slide on two guide plates 95 of an upper frame rod 94. The hinged flaps 91 can be unfolded to divide an open space into two independent spaces, or they can be folded back to merge the two separated independent spaces into one open space.

[0003] In existing sliding doors, the bottom of the door tends to wobble and tilt because the sliding mechanism consists only of two rollers 93 at the top of the flap 91 sliding on two guide plates 95. Furthermore, when the flap 91 is unfolded, its bottom is not fixed, so if it is struck, the entire sliding door will tilt into another separate space, potentially causing unpredictable damage to people or objects in that space.

[0004] Therefore, the existing sliding door structure does indeed need to be improved. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a bottom guide structure and guide wheel assembly for a sliding door, which can be combined with the bottom of the sliding door to guide the bottom of the sliding door to move in a straight line on the lower frame bar; the bottom of the sliding door is kept on the lower frame bar, so that the sliding door will not deflect due to collision and to avoid unpredictable accidents.

[0006] The directions or similar terms used throughout this work, such as "front," "back," "left," "right," "top," "bottom," "inside," "outside," and "side," are primarily for reference to the directions in the accompanying diagrams. These directions or similar terms are only used to assist in explaining and understanding the various embodiments of this work and are not intended to limit this work.

[0007] The terms "combination," "combination," or "connection" used throughout this work mainly refer to types of connections that allow for separation without damaging the components, or connections that make the components inseparable. These are choices that those with ordinary knowledge in the art can make based on the material of the components to be connected or the assembly requirements.

[0008] The use of the quantifiers “one” or “a” for the elements and components described throughout this work is for convenience and to provide the general meaning within the scope of this work; in this work, it should be interpreted as including one or at least one, and the concept of a single element also includes plural cases, unless it clearly means otherwise.

[0009] The terms "first," "second," ... and "Nth" used throughout this work are primarily used to distinguish different elements or features (such as components, directions, or steps, etc.) and do not indicate the maximum or minimum number of such elements or features possessed by a corresponding subject or method, nor do they imply any order of precedence.

[0010] The purpose of this utility model is achieved as follows:

[0011] A guide wheel assembly includes: a top plate having a connecting portion; and two side plates connected to the two sides of the top plate, the two side plates being separated by a distance, and each of the two side plates having a shaft hole, a shaft being fixed in the two shaft holes to support the positioning and rotation of a wheel, and each of the opposite inner surfaces of the two side plates having a protruding protrusion, the two protrusions being spaced apart.

[0012] A bottom guide structure for a sliding door includes: an upper frame rod having two separate guide plates; a lower frame rod having a guide rail with a T-shaped cross-section, the top of the guide rail having wings protruding to both sides, the guide rail itself having a first thickness, and the two wings having a second thickness; a sliding door having at least one suspension wheel assembly at the top, the suspension wheel assembly having two rotatable wheels, the two wheels sliding on the two guide plates of the upper frame rod respectively; and a guide wheel assembly as described above, the guide wheel assembly being connected to the bottom of the sliding door by the connecting part, the wheels being located at the top of the guide rail, and each of the opposing inner surfaces of the two side plates having a protruding protrusion, the two protrusions being located below the two wings respectively.

[0013] Preferably, the device may further include a connector, which comprises an upper connecting portion and a lower connecting portion, the lower connecting portion being engaged with the connecting portion of the guide wheel assembly. Thus, the connector can be used to first fix the bottom of the sliding door, allowing the guide wheel assembly to be then engaged with the connector, making it easy to fix the guide wheel assembly to the bottom of the sliding door.

[0014] Preferably, the connecting portion is a non-circular hole. This allows the guide wheel assembly to be easily attached to the bottom of the sliding door or the connector.

[0015] Preferably, the lower connecting portion has a circular diameter portion and a locking portion. One end of the circular diameter portion is connected to the lower surface of the connector. The locking portion protrudes radially from the open end of the circular diameter portion. The cross-section of the locking portion is non-circular. The locking portion has a first dimension of a short axis and a second dimension of a long axis. This allows the guide wheel assembly to be easily fixed to the bottom of the sliding door.

[0016] Preferably, the connecting portion is a non-circular hole with a third dimension of a short axis and a fourth dimension of a long axis. The first dimension is smaller than the third dimension, the second dimension is smaller than the fourth dimension, and the second dimension is larger than the third dimension. In this way, the guide wheel assembly can rotate relative to the connecting member, allowing the engaging portion to engage with the connecting portion in a staggered manner without disengaging.

[0017] The beneficial effects of this utility model are:

[0018] This utility model utilizes the guide wheel assembly, which can be attached to the bottom of the sliding door, allowing the guide wheel assembly to move along the guide rail of the lower frame rod. In this way, the sliding door can be smoothly pulled open to divide an open space into two independent spaces. Thus, when one side of the sliding door is hit, the sliding door will not tilt due to the impact, and unpredictable accidents can be avoided on the other side of the sliding door. Attached Figure Description

[0019] Figure 1 This is a 3D view of a sliding door in the existing technology.

[0020] Figure 2 This is a perspective view of the bottom guide structure of a sliding door according to the present invention.

[0021] Figure 3 for Figure 2 A partial exploded 3D view of point A in the middle.

[0022] Figure 4 This diagram shows the situation where the connector and the guide wheel assembly are separated.

[0023] Figure 5 This diagram shows the situation where the connector and guide wheel assembly are combined.

[0024] Figure 6 for Figure 5 AA sectional view.

[0025] Wherein: 1. Upper frame rod; 11. Guide plate; 2. Lower frame rod; 21. Guide rail; 22. Wing; 3. Sliding door; 31. Suspension wheel assembly; 32. Rotating wheel; 4. Guide wheel assembly; 41. Joint; 42. Top plate; 43. Side plate; 44. Shaft hole; 45. Shaft rod; 46. Wheel; 47. Protrusion; 5. Connecting piece; 5a. Upper connecting part; 5b. Lower connecting part; 51. Through hole; 52. Fixing piece; 53. Diameter part; 54. Engaging part; 91. Folding piece; 92. Suspension wheel assembly; 93. Rotating wheel; 94. Upper frame rod; 95. Guide plate; D. Distance; S1. First dimension; S2. Second dimension; S3. Third dimension; S4. Fourth dimension; T1. First thickness; T2. Second thickness. Detailed Implementation

[0026] Please see Figure 2 and Figure 3 As shown, this utility model relates to a sliding door, which includes an upper frame rod 1, a lower frame rod 2, a sliding door 3, and a guide wheel assembly 4. The guide wheel assembly 4 can be attached to the bottom of the sliding door 3 and move along the lower frame rod 2.

[0027] The upper frame rod 1 can be located at the top of a door frame or a window frame, and the upper frame rod 1 has two separate guide plates 11.

[0028] The lower frame rod 2 can be located at the bottom of a door frame or a window frame. The lower frame rod 2 has a guide rail 21. The cross-section of the guide rail 21 can form a T-shape, so that the top of the guide rail 21 can have wings 22 protruding to both sides, so that the guide rail 21 itself has a first thickness T1, and the two wings 22 have a second thickness T2.

[0029] The horizontal sliding door 3 can be an existing folding panel or a horizontal sliding door panel, which is not limited in this application. In this embodiment, the horizontal sliding door 3 is described using a folding panel as an example. A suspension wheel assembly 31 is provided at the top of one part of the folding panel in the horizontal sliding door 3. Each of the suspension wheel assemblies 31 has two rotatable wheels 32. The two wheels 32 slide on the two guide plates 11 of the upper frame rod 1, so that the horizontal sliding door 3 can move smoothly.

[0030] The guide wheel assembly 4 has a connecting part 41, allowing it to be connected to the bottom of one portion of the folding flap in the sliding door 3. Preferably, the guide wheel assembly 4 and the suspension wheel assembly 31 are located at the bottom and top of the same folding flap in the sliding door 3, respectively. In this embodiment, the guide wheel assembly 4 can be U-shaped with a top plate 42 and two side plates 43. The connecting part 41 is located on the top plate 42. The two side plates 43 are separated by a gap, and each side plate 43 has a shaft hole 44. A shaft 45 is fixed to the two shaft holes 44 to support a wheel 46 rotating on the top of the guide rail 21. The opposing inner surfaces of the two side plates 43 each have a protruding protrusion 47 (e.g., ...). Figure 4 As shown, there is a distance D between the two protrusions 47, which is greater than the first thickness T1 and less than the second thickness T2, so that the two protrusions 47 can be located below the two wings 22 respectively, so that the guide wheel assembly 4 can move along the guide rail 21 without detaching from the guide rail 21.

[0031] Please see Figure 3 and Figure 5As shown, preferably, the guide wheel assembly 4 can also be combined with a connector 5 by the connecting part 41. The connector 5 includes an upper connecting part 5a and a lower connecting part 5b. The upper connecting part 5a can be combined with the bottom of the sliding door piece 3, and the lower connecting part 5b can be combined with the connecting part 41 of the guide wheel assembly 4. In this embodiment, the connector 5 has a through hole 51 that passes through the upper surface of the upper connecting part 5a and the lower surface of the lower connecting part 5b. A fixing member 52 passes through the through hole 51 at the lower surface end of the lower connecting part 5b, so that the fixing member 52 can attach the upper connecting part 5a to the bottom of the sliding door piece 3. The lower connecting part 5b has a circular diameter part 53 and a locking part 54. One end of the circular diameter part 53 is connected to the lower surface of the connector 5. The locking part 54 protrudes radially from the open end of the circular diameter part 53. The cross-section of the locking part 54 is non-circular. The locking part 54 has a first dimension S1 of the short axis and a second dimension S2 of the long axis. The connecting portion 41 can be a non-circular hole with a third dimension S3 of the short axis and a fourth dimension S4 of the long axis. The first dimension S1 is smaller than the third dimension S3, the second dimension S2 is smaller than the fourth dimension S4, and the second dimension S2 is larger than the third dimension S3. Thus, the engaging portion 54 and the connecting portion 41 can be aligned with the diameter portion 53 when the first dimension S1 is aligned with the third dimension S3 and the second dimension S2 is aligned with the fourth dimension S4. This allows the hole-shaped connecting portion 41 to pass through the engaging portion 54 and align with the diameter portion 53, enabling the guide wheel assembly 4 to rotate relative to the connecting member 5. Even when the first dimension S1 is aligned with the fourth dimension S4 and the second dimension S2 is aligned with the third dimension S3, the engaging portion 54 and the connecting portion 41 are engaged in a staggered manner and will not disengage (e.g., Figure 6 (As shown).

[0032] In summary, the bottom guide structure and guide wheel assembly of the sliding door of this application, by means of the guide wheel assembly being connected to the bottom of the sliding door, allows the guide wheel assembly to move along the guide rail of the lower frame rod. In this way, the sliding door can be smoothly pulled open to divide an open space into two independent spaces. Thus, when one side of the sliding door is hit, the sliding door will not tilt due to the impact, and unpredictable accidents can be avoided on the other side of the sliding door.

[0033] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A guide wheel assembly, characterized in that: Include: A top plate, having a joint; and Two side plates are connected to the two sides of the top plate. The two side plates are separated by a distance, and each side plate has a shaft hole. A shaft is fixed in the two shaft holes to support a wheel for positioning and rotation. Each of the two side plates has a protruding protrusion on its opposite inner surface, and there is a distance between the two protrusions.

2. The guide wheel assembly according to claim 1, characterized in that: The joint is a non-circular hole.

3. The guide wheel assembly according to claim 2, characterized in that: It also includes a connector, which comprises an upper connecting portion and a lower connecting portion, the lower connecting portion being engaged with the connecting portion of the guide wheel assembly.

4. A guide wheel assembly according to claim 3, characterized in that: The lower connecting portion has a circular diameter portion and a locking portion. One end of the circular diameter portion is connected to the lower surface of the connector. The locking portion protrudes radially from the open end of the circular diameter portion. The cross-section of the locking portion is non-circular. The locking portion has a first dimension of a short axis and a second dimension of a long axis.

5. A guide wheel assembly according to claim 4, characterized in that: The joint is a non-circular hole with a third dimension of a short axis and a fourth dimension of a long axis. The first dimension is smaller than the third dimension, the second dimension is smaller than the fourth dimension, and the second dimension is larger than the third dimension.

6. A bottom guide structure for a sliding door, characterized in that: Include: The upper frame has two separate guide plates; A frame rod has a guide rail with a T-shaped cross-section. The top of the guide rail has wings that protrude to both sides. The guide rail itself has a first thickness, and the two wings have a second thickness. A horizontal sliding door has at least one suspension wheel assembly at the top, the suspension wheel assembly having two rotatable wheels, the two wheels sliding on the two guide plates of the upper frame rod respectively; and The guide wheel assembly according to claim 1 or 2 is used, wherein the guide wheel assembly is connected to the bottom of the sliding door by the connecting part, the wheel is located at the top of the guide rail, and each of the opposite inner surfaces of the two side plates has a protruding protrusion, the two protrusions being located below the two wings respectively.

7. The bottom guide structure of a sliding door according to claim 6, characterized in that: It also includes a connector, which comprises an upper connecting portion and a lower connecting portion, the lower connecting portion being engaged with the connecting portion of the guide wheel assembly.

8. The bottom guide structure of a sliding door according to claim 7, characterized in that: The lower connecting portion has a circular diameter portion and a locking portion. One end of the circular diameter portion is connected to the lower surface of the connector. The locking portion protrudes radially from the open end of the circular diameter portion. The cross-section of the locking portion is non-circular. The locking portion has a first dimension of a short axis and a second dimension of a long axis.

9. The bottom guide structure of a sliding door according to claim 8, characterized in that: The joint is a non-circular hole with a third dimension of a short axis and a fourth dimension of a long axis. The first dimension is smaller than the third dimension, the second dimension is smaller than the fourth dimension, and the second dimension is larger than the third dimension.

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