STAIR RAILING WITH ADJUSTABLE ANGLE

Abstract

A stair railing includes at least two vertical posts, at least one horizontal rail and a movable connecting mechanism. The horizontal rail is connected to the vertical post through the movable connecting mechanism, so that the horizontal rail is rotatable in relation to the vertical post. Wherein the movable connecting mechanism includes an insertion part with at least a portion of the insertion part being arc-shaped, and a receiving part that has a receiving space compatible with the insertion part.

Description

TECHNICAL FIELD

The invention relates to railings, and in particular to stair railings that are vertically adjustable to account for various stair pitches.

BACKGROUND

General safety and indeed most building codes require stairs to have railings, similar to FIG. 1. In many cases, such railings are made of wrought iron that is welded to a custom configuration especially suited to the staircase in question. This practice requires the skill and skill of a professional railing builder, making it expensive and time-consuming for home and business owners.

At present, most of the adjustable railings on the market are basically connected by screws or bolts. At the same time, certain cutting is required on the connecting part, and a certain gap will be formed after installation.

SUMMARY

The application discloses a stair railing. The stair railing includes at least two vertical posts and at least one horizontal rail connected to the vertical post through a movable connecting mechanism, so that the horizontal rail is rotatable in relation to the vertical post; wherein the movable connecting mechanism includes an insertion part with at least a portion of the insertion part being arc-shaped, and a receiving part that has a receiving space compatible with the insertion part.

Optionally, the insertion part includes an insertion body, which is cylindrical and extends along an axis direction, and a connector, wherein one end of the connector is rigidly connected to the insertion body, and the other end of the connector is rigidly connected to the horizontal rail.

Optionally, the cylindrical insertion body is provided with a gap extending along the axis direction and located opposite the connector.

Optionally, wherein the cylindrical insertion body is hollow and provided with a predefined thickness.

Optionally, wherein the connector extends along the axis direction and reaches both ends of the cylindrical insertion body.

Optionally, wherein the receiving part includes a receiving body rigidly connected to the top of the vertical post, wherein the receiving body is provided with a curved recess which is configured to form the receiving space and a connecting gap located on a surface of the receiving body, wherein the connecting gap is connecting with the curved recess and configured to allow the connector to pass through.

Optionally, the connecting gap has a predefined width, so that the connector is allowed to swing within a predetermined angular range.

Optionally, the receiving body is provided with a first surface rigidly connected to the vertical post and a second surface where the connecting gap is located.

Optionally, the receiving body is provided with a first lateral surface and a second lateral surface, and the curved recess traverses the receiving body along the axis direction to form two circular openings on the first lateral surface and second lateral surface.

Optionally, the receiving part further includes at least two cover plates detachably fixed to the first lateral surface and second lateral surface to cover the circular openings.

Optionally, the horizontal rail includes a horizontal rail body with a predefined length and a handrail portion positioned on an upper surface of the horizontal rail body; wherein the lower surface of the horizontal rail body is connected to the vertical post through the movable connecting mechanism.

Optionally, the stair railing is consisting of a single horizontal rail and two vertical posts, and the two vertical posts are connected to respective ends of the horizontal rail through the movable connecting mechanism.

At least one advantages of the stair railing of this application is that: the stair railing can be adjusted vertically for stairs of different slopes and customized on site. This will allow the manufacture of stair railing with adjustable angles, enabling them to be used on almost any pitch of stairs, resulting in significant cost savings and easy installation on fully custom railing.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described with corresponding reference to the accompanying drawings. These illustrative explanations do not limit the embodiments. Elements in the drawings with the same reference numerals represent similar elements, unless otherwise specified. The proportions of the elements in the drawings are not to scale, unless specifically stated.

FIG. 1 illustrates a schematic diagram of stairs with the railing according to an embodiment of the present application.

FIG. 2 illustrates the structure of the stair railing according to an embodiment of the present application.

FIG. 3 illustrates the structure of the stair railing according to an embodiment of the present application, showing the separation of the horizontal rail and the vertical post.

FIG. 4 illustrates a schematic diagram of the movable connecting mechanism according to an embodiment of the present application.

FIG. 5 illustrates a schematic diagram of the insertion part in FIG. 4.

FIG. 6 illustrates a schematic diagram of the receiving part in FIG. 4.

FIG. 7 illustrates an exploded view of the movable connecting mechanism according to an embodiment of the present application.

EXPLANATION OF THE REFERENCE NUMERALS IN THE DRAWINGS

• • Stairs 10; stair railing 20; vertical post 100; horizontal rail 200; movable connecting mechanism 300; handrail portion 400; insertion part 310; receiving part 320; insertion body 311; connector 312; gap 313; receiving body 321; connecting gap 322; cover plate 323.

DETAILED DESCRIPTION

The following detailed description is provided in conjunction with specific embodiments, but it should be emphasized that the description is merely exemplary and not intended to limit the scope and applications of the present application.

It should be noted that unless otherwise specified and limited, the terms used in this specification, such as “center,” “vertical,” “horizontal,” “up,” “down,” “vertical,” “horizontal,” “inner,” “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are used for the convenience of describing the present application and simplifying the description, and should not be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, they should not be interpreted as limiting the present application.

Terms such as “installation,” “connection,” “fixed,” etc., should be broadly interpreted. For example, they can refer to fixed connections, detachable connections, or integral connections. They can refer to mechanical connections or electrical connections. They can refer to direct connections or indirect connections through an intermediate medium. Additionally, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance or indicating the quantity of the indicated technical features. Therefore, features with “first” and “second” can explicitly or implicitly include one or more of that feature. The term “multiple” means two or more. The term “and/or” includes any and all combinations of the listed items. For those skilled in the art, the specific meanings of the above terms in the present application can be understood based on the specific circumstances.

FIG. 2 illustrates a schematic diagram of a stair railing according to an embodiment of the present application. As shown in FIG. 2, the stair railing includes horizontal rail 100, vertical post 200, and movable connecting mechanism 300.

The horizontal rail 100 is arranged horizontally and is a component with a predetermined length. The vertical post 200 is arranged vertically. One end of the vertical post 200 is fixed to the edge of the staircase, while the other end is connected to the horizontal rail 100 through the movable connecting mechanism 300, thus forming the stair railing.

To detailed illustrate the inventive concept of the present application, FIG. 1 in the accompanying specification exemplarily shows a stair railing composed of two vertical posts 200 and one horizontal rail 100. However, those skilled in the art will understand that the number of vertical posts and horizontal rails can be adjusted accordingly based on the actual installation situation of the staircase, and is not limited to what is shown in the accompanying specification.

FIG. 3 illustrates a schematic diagram of the movable connecting mechanism 300 according to an embodiment of the present application. As shown in FIG. 3, the movable connecting mechanism 300 can be composed of an insertion part 310 and a receiving part 320.

At least a portion of the insertion part 310 is arc-shaped and rigidly connected to the horizontal rail 100. The receiving part 320 has a receiving space that is compatible with the insertion part 310 and is rigidly connected to the vertical posts 200. As a result, the insertion part 310 assembled into the receiving part 320 has freedom of movement. The insertion part 310 can rotate relative to the receiving part 320 within a certain range of angles. In this context, “compatible” means that the receiving space has dimensions roughly equivalent to the insertion part so as to minimize any noticeable gap even after rotation. For example, as shown in FIG. 4, the cylindrical insertion part 310 has dimensions roughly equivalent to the receiving space. The cylindrical insertion part 310 is tightly enveloped within the receiving part 320.

By setting up the movable connecting mechanism 300, the horizontal rail 100 can rotate around the center of the cylindrical insertion part in relation to the vertical posts 200 within a certain range of angles. In other words, the stair railing has the functionality of angle adjustment, allowing for vertical adjustment according to stairs with different slopes.

At least one advantages of the stair railing according to the embodiment of the present application is that it can be customized directly at the installation site, making it suitable for almost any spacing of the staircase. This greatly saves costs and facilitates installation on fully customized railings.

Specifically, as shown in FIG. 5, the insertion part 310 can be roughly divided into two parts: the insertion body 311 and the connector 312.

The insertion body 311 is roughly cylindrical in shape. It extends along the axis direction X1 in a predetermined length. The connector 312 is the portion extending outward from the surface of the insertion body 311 and is rigidly connected to the horizontal rail 200. In other words, the insertion body 311 is a part which is receiving by the receiving space, and the connector 312 is the connecting portion located between the insertion body 311 and the horizontal rail 200.

In some embodiments, the insertion body 311 can be configured as a hollow ring structure with a predetermined thickness. In a position opposite to the connector 312, the insertion body 311 can also be provide with a gap 313 extending along the axis direction, forming the structure as shown in FIG. 5.

Complementing the insertion part, as shown in FIG. 6, the receiving part 320 can include a receiving body 321 and a connecting gap 322.

The receiving body 321 is rigidly connected to the top of the vertical post 200. The receiving body 321 is also provided with an arc-shaped recess to form the receiving space for the insertion part 310. The connecting gap 322 is opened on the surface of the receiving body 312 and is in communication with the arc-shaped recess, allowing the connector 312 to pass through and rigidly connect with the horizontal rail 100.

In some embodiments, the connector 312 can extend along the axis direction with a certain width. The connecting gap 322 can be set to have an appropriate width, d, to form a rotational angle range of the horizontal rail 100 relative to the vertical post 200.

Specifically, as shown in FIG. 4, when the horizontal rail 100 is rotated to the extreme left position, the connector 312 is restricted by the left edge of the connecting gap 322 and cannot continue to rotate. Similarly, when the horizontal rail 100 is rotated to the extreme right position, the connector 312 is restricted by the right edge of the connecting gap 322 and cannot continue to rotate.

Therefore, setting a larger width for the connecting gap 322 can provide a larger range of rotational angles. However, at the same time, an excessively large width for the connecting gap may not provide enough force to keep the insertion part 310 securely within the receiving part 320. Preferably, the width “d” for the connecting gap should not be larger than the diameter of the cylindrical insertion body.

Specifically, with the vertical direction of the vertical post as the reference, the receiving body 321 has opposing surfaces in the vertical direction and opposing surfaces in the horizontal direction. In this application, the opposing surfaces in the vertical direction can be referred to as “first surface” and “second surface.” The opposing surfaces in the horizontal direction can be referred to as the “first lateral surface” and the “second lateral surface.”

The first surface of the receiving body 321 is rigidly connected to the top of the vertical post 200. The connecting gap 322 is opened on the second surface of the receiving body 321. The arc-shaped recess extends along the axis direction and passes through the receiving body 321, thus forming a circular opening on the first lateral surface and the second lateral surface of the receiving body 321, respectively.

In some embodiments, as shown in FIG. 7, the receiving part 320 can also include at least two cover plates 323. These cover plates 323 can be detachably fixed on the first lateral surface and the second lateral surface of the receiving body to cover and seal the circular openings. The specific dimensions of the cover plates can be appropriately set based on the actual requirements, and suitable connection methods can be employed to secure them to the receiving body.

Specifically, as shown in FIG. 3, the cover plates 323 can have dimensions approximately matching the side surfaces of the receiving body, and they can be detachably fixed to the receiving body by screws. Alternatively, other methods such as adhesive or snap-on connections can also be used. This is not specifically limited.

During the actual installation process of the staircase, first, the vertical post 200 can be installed and fixed at the edges of the staircase according to the installation requirements.

Then, the horizontal rail 100 with the insertion part 310 can be inserted into the receiving part 320 located at the top of the vertical posts 200 along the axis direction. Specifically, the insertion body 311 of the insertion part 310 can be inserted along the axis direction through the circular openings on the two side surfaces of the receiving body 321.

Finally, the two cover plates 323 are fixed to the two side surfaces of the receiving body 321 with screws to cover and seal the circular openings, thereby confining the insertion part 310 within the receiving part 320.

It should be noted that the insertion part 310 and the receiving part 320 are structurally designed to be a pair. For descriptive purposes, this application describes the example where the insertion part is fixed on the horizontal rail and the receiving part is fixed on the vertical post. However, those skilled in the art will understand that the positions of the “insertion part” and “receiving part” can be interchanged, and they are not limited to the specific arrangement shown in the accompanying drawings of this application.

In summary, the movable connecting mechanism enables rotational functionality between the horizontal rail 100 and the vertical post 200, making it suitable for stairs with different inclinations. Additionally, the connection and surface of both the upper and lower parts of the entire stair handrail can remain flat, resulting in a more streamlined appearance. Furthermore, the absence of visible gaps at the connection point effectively prevents injury to individuals during the installation process by eliminating the risk of fingers unintentionally entering the rotational gap.

The stair railing disclosed in the above-mentioned embodiments can be modified or additional structures can be incorporated according to specific requirements to provide corresponding functionality or technical effects. For example, a wooden handrail portion 400 can be added to the upper surface of the horizontal rail 100 to enhance the user's grip and tactile experience.

The above content provides further detailed explanations in conjunction with specific/preferred embodiments and should not be considered as limiting the scope of this application to only these explanations. Those skilled in the art will recognize that various modifications and improvements can be made without departing from the essence of this application, all of which fall within the scope of protection of this application.

Claims

1. A stair railing, comprising: at least two vertical posts;at least one horizontal rail connected to the vertical post through a movable connecting mechanism, so that the horizontal rail is rotatable in relation to the vertical post;wherein the movable connecting mechanism comprises:an insertion part with at least a portion of the insertion part being arc-shaped, anda receiving part that has a receiving space compatible with the insertion part.

2. The stair railing according to claim 1, wherein the insertion part comprises: an insertion body, which is cylindrical and extends along an axis direction, anda connector, wherein one end of the connector is rigidly connected to the insertion body, and the other end of the connector is rigidly connected to the horizontal rail.

3. The stair railing according to claim 2, wherein the cylindrical insertion body is provided with a gap extending along the axis direction and located opposite the connector.

4. The stair railing according to claim 3, wherein the cylindrical insertion body is hollow and provided with a predefined thickness.

5. The stair railing according to claim 3, wherein the connector extends along the axis direction and reaches both ends of the cylindrical insertion body.

6. The stair railing according to claim 2, wherein the receiving part comprises: a receiving body rigidly connected to the top of the vertical post, wherein the receiving body is provided with a curved recess which is configured to form the receiving space anda connecting gap located on a surface of the receiving body, wherein the connecting gap is connecting with the curved recess and configured to allow the connector to pass through.

7. The stair railing according to claim 6, wherein the connecting gap has a predefined width, so that the connector is allowed to swing within a predetermined angular range.

8. The stair railing according to claim 6, wherein the receiving body is provided with a first surface rigidly connected to the vertical post and a second surface where the connecting gap is located.

9. The stair railing according to claim 6, wherein the receiving body is provided with a first lateral surface and a second lateral surface, and the curved recess traverses the receiving body along the axis direction to form two circular openings on the first lateral surface and second lateral surface.

10. The stair railing according to claim 8, wherein the receiving part further comprises at least two cover plates detachably fixed to the first lateral surface and second lateral surface to cover the circular openings.

11. The stair railing according to claim 1, wherein the horizontal rail comprises a horizontal rail body with a predefined length anda handrail portion positioned on an upper surface of the horizontal rail body; wherein the lower surface of the horizontal rail body is connected to the vertical post through the movable connecting mechanism.

12. The stair railing according to claim 1, wherein the stair railing is consisting of a single horizontal rail and two vertical posts, and the two vertical posts are connected to respective ends of the horizontal rail through the movable connecting mechanism.