Simple installation railing with 3D printing conversion piece structure
Patent Information
- Application Number
- CN202522647334.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-15
AI Technical Summary
传统的栏杆安装方法依赖于复杂的焊接、铆接等工艺,不仅耗费大量的时间与人力成本,而且对施工人员的专业技能要求较高
[0005]通过3D 打印转换件顶部设有 V 形槽,扣盖呈 V 字形结构且底部能嵌入 V 形槽,这种设计使得扣盖与转换件的安装较为便捷,只需将扣盖底部对准 V 形槽嵌入即可。同时,V 形槽与扣盖的斜面配合还能限制水平位移,在安装过程中无需复杂的定位操作就能保证扣盖在水平方向上的稳定性,减少了安装时的调整时间和难度。并通过扶手底部开口两侧延伸形成的第二内收凸缘,其内壁倾斜角度与扣盖的第一内收凸缘外壁适配,且第二内收凸缘顶部内侧壁能与扣盖的倒扣部挤压配合,促使两者弹性形变直至形成互锁。这种连接方式无需使用额外的工具或复杂的装配流程,只需将扶手对准扣盖放下,通过两者之间的弹性挤压和互锁就能实现紧密连接,大大提高了安装效率。竖向锁紧机构用于对扣盖竖向施加压力,使扣盖固定在 3D 打印转换件的顶部。
Smart Images

Figure CN224902611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction, specifically to a simple installation railing with a 3D printed conversion component structure. Background Technology
[0002] In the field of architecture and civil engineering, the installation of railings has long faced numerous challenges. Traditional railing installation methods rely on complex welding and riveting processes, which not only consume a lot of time and labor costs but also require a high level of professional skills from construction workers. At the same time, conventional installation structures lack sufficient flexibility and adaptability when faced with installation foundations of different shapes and materials. With the increasing maturity of 3D printing technology, its application in the construction field is gradually expanding. 3D printing technology can quickly and accurately manufacture components that are difficult or costly to process using existing methods, providing a new approach to solving railing installation problems. Applying 3D printing technology to railing conversion structures is expected to simplify railing installation, improve installation efficiency, and enhance the stability and adaptability of the railing structure. Summary of the Invention
[0003] The problem this utility model aims to solve is to provide a railing structure that can be installed quickly.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows: A simple installation railing with a 3D printed conversion component structure includes: A 3D printed conversion part with a V-shaped groove on its top; The cover has a V-shaped structure and the bottom is embedded in the V-shaped groove. Its two sides extend upward to form a pair of symmetrical first inward flanges. The first inward flanges continue to converge inward along the height direction, and the outer side wall is provided with an outward protruding inverted part. A vertical locking mechanism, which passes through the cover and is threadedly connected to the 3D-printed conversion part, is used to apply vertical clamping force; The handrail has an internal cavity, and the bottom opening extends on both sides to form a pair of symmetrical second inward flanges. The inclination angle of its inner wall is adapted to the outer wall of the first inward flange. The inner sidewall of the top of the second inner flange is pressed and engaged with the undercut part, causing both to elastically deform until they interlock. At the same time, the V-groove and the inclined surface of the cover engage to restrict horizontal displacement.
[0005] The 3D-printed adapter features a V-groove on its top, and the cover has a V-shaped structure with its bottom fitting into the V-groove. This design makes installation of the cover and adapter convenient; simply align the bottom of the cover with the V-groove and insert it. Simultaneously, the beveled surface of the V-groove and cover restricts horizontal displacement, ensuring the cover's horizontal stability without complex positioning operations during installation, reducing adjustment time and difficulty. A second inward-curving flange extending from both sides of the bottom opening of the armrest has an inner wall angle that matches the outer wall of the first inward-curving flange of the cover. The top inner wall of the second inward-curving flange presses against the undercut portion of the cover, causing elastic deformation until interlocking. This connection method requires no additional tools or complex assembly processes; simply align the armrest with the cover and lower it. The elastic compression and interlocking between the two achieve a tight connection, significantly improving installation efficiency. A vertical locking mechanism applies vertical pressure to the cover, securing it to the top of the 3D-printed adapter.
[0006] Furthermore, the slope angle of the V-groove is 90°-160°.
[0007] Furthermore, the undercut portion has a first undercut surface that gradually expands outward in an arc shape from the upper part of the outer wall of the first inward flange, and a second undercut surface that continuously recesses upward from the lower part of the outer wall of the first inward flange. An arc-shaped abutment surface is formed at the connecting edge of the first and second undercut surfaces. The point where the arc of the second undercut surface is tangent to the abutment surface forms a line contact with the upper end face of the second inward flange. The first undercut surface of the undercut portion expands outward in an arc shape from the upper part of the outer wall of the first inward flange. The outward expansion design of the first undercut surface guides the second inward flange to smoothly engage during armrest installation. The recessed design of the second undercut surface provides sufficient space for a good fit at the top of the second inward flange after engagement. The line contact between the arc of the second undercut surface and the abutment surface and the upper end face of the second inward flange ensures a stable fit and prevents unstable surface contact due to unevenness.
[0008] Furthermore, the vertical locking mechanism includes a screw, a spring washer, and a nut. The lower end of the screw passes through a through hole on the cover and is screwed into a threaded hole on the top of the 3D printed converter. The spring washer is positioned between the bolt head and the cover to provide continuous elastic clamping force. The vertical locking mechanism, composed of a screw, spring washer, and nut, has a simple structure and is easy to operate. The lower end of the screw passes through a through hole on the cover and is screwed into a threaded hole on the top of the 3D printed converter. This connection method only requires rotating the screw to achieve a secure connection between the cover and the 3D printed converter, eliminating the need for complex tools or special installation techniques and greatly improving installation efficiency.
[0009] Furthermore, the upper surface of the buckle cover is provided with a stainless steel connecting plate, the width of which is greater than the diameter of the spring washer, laterally covering the area between the two first inward-facing flanges to disperse the clamping stress. The stainless steel connecting plate, wider than the diameter of the spring washer, laterally covers the area between the two first inward-facing flanges. When the vertical locking mechanism applies pressure to the buckle cover through the spring washer, the stainless steel connecting plate can evenly distribute the pressure to various parts of the buckle cover, avoiding pressure concentration at the contact point between the spring washer and the buckle cover. This prevents the buckle cover from deforming or being damaged due to excessive local pressure, extends the service life of the buckle cover, and also ensures the stability of the overall railing structure.
[0010] Furthermore, the lower surface of the stainless steel connecting plate has at least two conical positioning protrusions facing the buckle protrusion, symmetrically distributed along the center line of the connecting plate. The buckle material has a lower hardness than the stainless steel connecting plate. The symmetrical distribution of the conical positioning protrusions along the center line of the connecting plate provides accurate positioning for the buckle installation. During installation, the conical positioning protrusions can be inserted into the corresponding positions of the buckle, ensuring the accurate relative position between the stainless steel connecting plate and the buckle, thereby guaranteeing the installation accuracy of the entire railing structure, enabling better cooperation between the various components, and improving the stability and reliability of the railing. Attached Figure Description
[0011] Figure 1 This is a cross-sectional view of the present invention; Figure 2 for Figure 1 A magnified view of the circled area.
[0012] Illustration: 1. 3D printed conversion part; 1.1. V-groove; 2. Cover; 2.1. First inward flange; 2.2. Inverted part; 2.2.1. First inverted surface; 2.2.2. Second inverted surface; 2.2.3. Abutting surface; 3. Vertical locking mechanism; 3.1. Screw; 3.2. Spring washer; 3.3. Nut; 4. Handrail; 4.1. Receiving cavity; 4.2. Second inward flange; 5. Stainless steel connecting plate; 5.1. Conical positioning protrusion. Detailed Implementation
[0013] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.
[0014] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 utility model 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, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.
[0015] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.
[0016] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0017] Please see Figures 1 to 2 A simple installation railing with a 3D-printed conversion component structure includes a 3D-printed conversion component, a buckle 2, a vertical locking mechanism 3, a handrail 4, and a stainless steel connecting plate 5.
[0018] The top of the 3D printed conversion part has a V-shaped groove with a bevel angle between 90° and 160°, and a V-shaped buckle 2 is embedded in the V-shaped groove.
[0019] The cover 2 has a pair of symmetrical first inward-curving flanges 2.1 extending upwards and gradually curving inwards on both sides. The undercut portion 2.2 on the outer wall of the flange is composed of a first undercut surface 2.2.1 that gradually curves outwards from the top to the bottom into an arc shape and a second undercut surface 2.2.2 that is concave upwards from the bottom into an arc shape. The connection line between the two is an arc-shaped abutment surface 2.2.3. The point where the arc of the second undercut surface 2.2.2 and the abutment surface 2.2.3 is tangent to the arc of the second undercut surface 2.2.2 and the upper end face of the second inward-curving flange 4.2 is in line contact.
[0020] The vertical locking mechanism 3 consists of a screw 3.1, a spring washer 3.2, and a nut 3.3. The lower end of the screw 3.1 passes through the hole on the cover 2 and is screwed into the threaded hole at the top of the 3D printed conversion part. The spring washer 3.2 is placed between the bolt head and the cover 2 to apply vertical pressure to the cover 2 and fix it to the top of the conversion part.
[0021] The handrail 4 has an empty cavity 4.1 inside. The inclination angle of the inner wall of the symmetrical second inward flange 4.2 on both sides of the bottom opening matches the outer wall of the first inward flange 2.1. Its top inner wall and the buckle 2 inverted part 2.2 are interlocked after being squeezed and elastically deformed. At the same time, the V-shaped groove cooperates with the inclined surface of the buckle 2 to restrict horizontal displacement.
[0022] The upper surface of the cover 2 is fitted with a stainless steel connecting plate 5, which is wider than the spring washer 3.2 and spans the area of the two first inward flanges 2.1 to disperse the compressive stress. The lower surface of the connecting plate protrudes at least two conical positioning protrusions 5.1 symmetrically distributed along the center line towards the cover 2, and the hardness of the material of the cover 2 is lower than that of the stainless steel connecting plate 5.
[0023] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.
Claims
1. A simple installation railing having a 3D printing conversion piece structure, characterized by, The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto.
2. A simple installation railing having a 3D printing conversion piece structure according to claim 1, characterized in that: The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto.
3. A simple installation railing having a 3D printing conversion piece structure according to claim 1, characterized in that: The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto.
4. A simple installation railing having a 3D printing conversion piece structure according to claim 1, characterized in that: The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto.
5. A simple installation railing having a 3D printing adapter structure according to claim 1, characterized in that: The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto.
6. A simple installation railing having a 3D printing conversion piece structure according to claim 5, characterized in that: The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece (1) and a handrail (4) connected thereto. The utility model relates to a 3D printing conversion piece