Stair handrail structure

The mortise and tenon structure design solves the problems of unstable installation and poor aesthetics of wooden stair handrails, achieving rapid and sturdy splicing and improved safety.

CN223753625UActive Publication Date: 2026-01-02WUYI HENGYUAN TIANKANG IND & TRADE CO LTD
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Patent Information

Application Number
CN202423081171.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2026-01-02
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

The existing wooden stair railing structure is cumbersome and unstable during installation, has poor aesthetics, and the metal connectors have limited ability to withstand external forces.

Method used

The mortise and tenon structure, through the combination of top blocks, wedge blocks, longitudinal brackets and transverse brackets, enables the quick and firm splicing of the support beam and the vertical rod, avoiding the use of metal connectors.

Benefits of technology

It improves the installation efficiency and connection stability of wooden stair railings, enhances their aesthetics, and improves children's safety and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a stair handrail structure which comprises a wooden stair, vertical rods are fixedly connected to the front side and the rear side of the top of each step of the wooden stair, two cross rods are evenly and obliquely clamped to the opposite sides of every two adjacent vertical rods from top to bottom, a top block is arranged at the top end of each vertical rod, and the top block is fixedly connected with the top of each vertical rod. A supporting beam is embedded between the top ends of the vertical rods on the same side of the top of the wooden stair through a top block, and a transverse clamping base penetrates through the front face of the supporting beam and is located over each vertical rod. According to the wood stair handrail structure, the handrail beam is rapidly installed between the top ends of the multiple vertical rods, the wood stair handrail structure can be rapidly and firmly spliced and installed without the help of metal connecting pieces, the installation efficiency and the connection stability of the wood stair handrail structure are effectively improved, and the attractiveness of a wood stair is also improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a stair handrail structure belongs to wooden stair field. BACKGROUND

[0002] Stair handrail is a kind of guardrail or support structure for beside stair, for providing stability and security, it is located stair side, for people to use when going up and down stairs, wooden stair handrail is a kind of common stair handrail design, it uses wood as main material, wooden handrail can provide additional support and security for stair, and is used in conjunction with wooden stair, can add a kind of natural, warm feeling.

[0003] In prior art, wooden stair handrail structure is pre-drilled on wooden handrail structure in assembling process, then fixed and installed by metal piece such as screw, it is tedious to operate, and the contact area between metal piece and wood is small, so that the external force that can be borne by the connecting place of wooden stair handrail structure part after installation is limited, wooden stair installed by metal connecting piece is not stable, and also reduces the overall appearance of wooden stair.

[0004] Therefore, the utility model provides a stair handrail structure to solve the above problems. CONTENT OF UTILITY MODEL

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a stair handrail structure to solve the problems that the wooden stair handrail structure installed by metal connecting mode is not stable and not beautiful in the background art.

[0006] In order to achieve the above object, the utility model is realized by the following technical scheme: a stair handrail structure, including wooden stair, the front side and the rear side of the top of each step of the wooden stair are fixedly connected with vertical rods, the opposite side of every two adjacent vertical rods is uniformly inclined and clamped with two horizontal rods from top to bottom, the top end of each vertical rod is provided with a top block, the vertical rods on the same side of the top of the wooden stair are embedded with a handrail through the top block, the front of the handrail and above each vertical rod is penetrated with a horizontal clamping seat, one side of the horizontal clamping seat penetrates the front of the top block and extends to the back of the top block, the top of the handrail and above the top block is embedded with a wedge block, the bottom of the wedge block is fixedly connected with a longitudinal clamping seat, and the bottom end of the longitudinal clamping seat penetrates the top of the top block and the horizontal clamping seat in sequence and extends to the lower part inside the top block.

[0007] Further, the two ends of the horizontal rod are provided with protruding clamping blocks, and the two sides of the vertical rod are provided with clamping grooves matched with the clamping blocks.

[0008] Further, the bottom of the support beam and above each vertical rod is provided with a square recess matching the top block, and the top end of each vertical rod is in contact with the bottom of the support beam.

[0009] Further, the longitudinal card holder is in contact with the top block, and the longitudinal card holder is in contact with the transverse card holder.

[0010] Further, the front surface of the transverse card holder is flush with the front surface of the support beam, and the front surface of the support beam and the two sides of the top block are provided with a square card slot matching the transverse card holder.

[0011] Further, the top of the wedge block is flush with the top of the support beam, and the top of the support beam is provided with a recess matching the wedge block.

[0012] Further, the top and bottom of the wedge block are inclined, and the top and bottom of the wedge block are parallel to each other.

[0013] The beneficial effects of the utility model are:

[0014] The mortise and tenon structure formed by the top block, the wedge block, the longitudinal card holder and the transverse card holder quickly installs the support beam between the top ends of the plurality of vertical rods, and the wooden stair handrail structure can be quickly and firmly spliced and installed without the help of metal connecting pieces, effectively improving the installation efficiency and connection stability of the wooden stair handrail structure, and improving the appearance of the wooden stair.

[0015] The space between the two adjacent vertical rods is separated by the inclined transverse rod fixed between the opposite sides of every two vertical rods, so that children can hold the low-height transverse rod when walking on the wooden stair, and the space between the two vertical rods cannot be directly passed through by children with small body shapes, effectively improving the stair use safety.

[0016] Since the wedge block and the transverse card holder are completely embedded in the interior of the support beam and the side surface is flush with the surface of the support beam, the stair handrail structure does not have the phenomenon of uneven surface and uncomfortable hand feeling during use, and the use experience of the wooden stair handrail is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 It is a structural schematic perspective view of the stair handrail structure of the utility model;

[0019] Figure 2 It is Figure 1 It is a structural schematic main sectional view of the support beam shown in the figure;

[0020] Figure 3 For Figure 2 The structural schematic perspective view of the vertical rod is shown in the figure;

[0021] Figure 4 For Figure 2 The structural schematic enlarged view of the part A is shown in the figure;

[0022] Figure 5 For Figure 1 The structural schematic perspective view of the horizontal rod is shown in the figure.

[0023] In the figure: 1, wooden stairs; 2, vertical rod; 3, horizontal rod; 4, handrail; 5, top block; 6, wedge block; 7, horizontal clamping seat; 8, longitudinal clamping seat; 9, clamping block. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0025] Please refer to Figures 1-5 The utility model provides a technical scheme: a stair handrail structure, including wooden stairs 1, the front side and rear side of the top of each step of wooden stairs 1 are fixedly connected with vertical rod 2, the opposite side of every two adjacent vertical rod 2 is evenly inclined and is clamped from top to bottom with two horizontal rods 3, the top of each vertical rod 2 is provided with top block 5, and the top of the vertical rod 2 of the same side of the top of wooden stairs 1 is embedded with handrail 4 through top block 5, the front of handrail 4 and located above each vertical rod 2 is penetrated with horizontal clamping seat 7, one side of horizontal clamping seat 7 is penetrated with the front of top block 5 and extends to the back of top block 5, and the top of handrail 4 and located above top block 5 is embedded with wedge block 6, the bottom of wedge block 6 is fixedly connected with longitudinal clamping seat 8, and the bottom end of longitudinal clamping seat 8 is sequentially penetrated with the top of top block 5 and horizontal clamping seat 7 and extends to the below inside top block 5, the space between the adjacent two vertical rod 2 is separated through the inclined clamping fixed horizontal rod 3 between the opposite side of every two vertical rod 2, so that children can conveniently hold the lower horizontal rod 3 when walking on wooden stairs 1 and go upstairs and downstairs, and the space between the two vertical rod 2 is separated and cannot be directly passed through the children with smaller body shape, which effectively improves the stair use safety.

[0026] Please refer to Figure 1 , Figure 2 and Figure 5The two ends of the horizontal rod 3 are provided with protruding clamping blocks 9, the two sides of the vertical rod 2 are provided with clamping grooves matched with the clamping blocks 9, the bottom of the handrail 4 and above each vertical rod 2 are provided with square grooves matched with the top blocks 5, the top end of each vertical rod 2 is in contact with the bottom of the handrail 4, the longitudinal clamping seat 8 is in contact with the top block 5, the longitudinal clamping seat 8 is in contact with the horizontal clamping seat 7, the horizontal clamping seat 7, the top block 5 and the handrail 4 form a mortise and tenon structure through the top block 5 and the handrail 4, so that the clamping connection between the handrail 4 and the top block 5 can be reinforced, and then the quick installation of the handrail 4 can be completed without metal tools such as screws, the longitudinal clamping seat 8 is embedded into the top of the handrail 4, and the bottom end of the longitudinal clamping seat 8 penetrates the top block 5 and the horizontal clamping seat 7 in turn, so that the wedge block 6 is embedded into the top of the handrail 4, the clamping connection between the top block 5 and the horizontal clamping seat 7 can be reinforced through the mortise and tenon structure between the wedge block 6, the longitudinal clamping seat 8 and the handrail 4, and the connection stability between the handrail 4 and the top end of the vertical rod 2 is improved.

[0027] Please refer to Figures 2-4 The front surface of the horizontal clamping seat 7 is flush with the front surface of the handrail 4, square clamping grooves matched with the horizontal clamping seat 7 are provided between the front surface of the handrail 4 and the two sides of the top block 5, the top of the wedge block 6 is flush with the top of the handrail 4, a recess matched with the wedge block 6 is provided in the top of the handrail 4, the top and the bottom of the wedge block 6 are inclined, and the top and the bottom of the wedge block 6 are parallel to each other, because the wedge block 6 and the horizontal clamping seat 7 are completely embedded into the inside of the handrail 4 and the side surface is flush with the surface of the handrail 4, the surface of the handrail does not appear uneven and uncomfortable during use of the stair handrail structure, and the use experience of the wooden stair 1 handrail is improved.

[0028] Specific implementation: the space between the two adjacent vertical rods 2 is separated by the horizontal rod 3 fixed by the inclined clamping between the opposite sides of every two vertical rods 2, so that children can hold the low-height horizontal rod 3 when walking on the wooden stair 1, and the space between the two vertical rods 2 cannot be directly passed through by children with small body shapes, effectively improving the stair use safety.

[0029] The transverse clamping sleeve 7 penetrates the top block 5 and the handrail 4, so that the transverse clamping sleeve 7, the top block 5 and the handrail 4 form a mortise and tenon structure, thereby reinforcing the clamping connection between the handrail 4 and the top block 5, and then the quick installation of the handrail 4 can be completed without the use of metal tools such as screws. By embedding the longitudinal clamping sleeve 8 into the top of the handrail 4 and making the bottom end of the longitudinal clamping sleeve 8 penetrate the top block 5 and the transverse clamping sleeve 7 in turn, the wedge block 6 is embedded into the top of the handrail 4. Through the mortise and tenon structure between the wedge block 6, the longitudinal clamping sleeve 8 and the handrail 4, the clamping connection between the top block 5 and the transverse clamping sleeve 7 can be reinforced, thereby improving the connection stability between the handrail 4 and the top end of the vertical rod 2. Without the aid of metal connecting pieces, the wooden stair 1 handrail structure can be quickly and firmly spliced and installed, effectively improving the installation efficiency of the wooden stair 1 handrail structure.

[0030] Because the wedge block 6 and the transverse clamping sleeve 7 are completely embedded into the inside of the handrail 4 and the side surface is flush with the surface of the handrail 4, the stair handrail structure will not have a concave-convex phenomenon during use, thereby improving the use experience of the wooden stair 1 handrail.

[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A stair handrail structure comprising a wooden stair (1), characterized in that: The vertical rod (2) is fixedly connected to the front side and the rear side of the top of each step of the wooden stair (1), two horizontal rods (3) are uniformly and downwardly inclined and clamped to the opposite side of every two adjacent vertical rods (2) from top to bottom, the top end of each vertical rod (2) is provided with a top block (5), the top ends of the vertical rods (2) on the same side of the top of the wooden stair (1) are embedded with a handrail (4) through the top block (5), the front surface of the handrail (4) and above each vertical rod (2) is penetrated by a horizontal clamping seat (7), one side of the horizontal clamping seat (7) penetrates the front surface of the top block (5) and extends to the back surface of the top block (5), the top of the handrail (4) and above the top block (5) is embedded with a wedge block (6), the bottom of the wedge block (6) is fixedly connected with a longitudinal clamping seat (8), the bottom end of the longitudinal clamping seat (8) penetrates the top of the top block (5) and the horizontal clamping seat (7) in sequence and extends to below the inside of the top block (5).

2. A stair railing structure according to claim 1, wherein: The both ends of the horizontal rod (3) are provided with protruding clamping blocks (9), the both sides of the vertical rod (2) are provided with clamping grooves embedded with the clamping blocks (9).

3. A stair railing structure according to claim 1, wherein: The bottom of the handrail (4) and above each vertical rod (2) is provided with a square recess embedded with the top block (5), and the top end of each vertical rod (2) is in contact with the bottom of the handrail (4).

4. A stair railing structure according to claim 1, wherein: The longitudinal clamping seat (8) is in contact with the top block (5), and the longitudinal clamping seat (8) is in contact with the horizontal clamping seat (7).

5. A stair railing structure according to claim 1, wherein: The front surface of the horizontal clamping seat (7) is flush with the front surface of the handrail (4), and square clamping grooves are provided between the front surface of the handrail (4) and the both sides of the top block (5) and embedded with the horizontal clamping seat (7).

6. A stair railing structure according to claim 1, wherein: The top of the wedge block (6) is flush with the top of the handrail (4), and the top of the handrail (4) is provided with a recess embedded with the wedge block (6).

7. A stair railing structure according to claim 1, wherein: The top and the bottom of the wedge block (6) are inclined, and the top and the bottom of the wedge block (6) are parallel to each other.