Sliding door for construction

The modular design of the construction sliding door, with its adjustable connectors and angled steel structure, solves the problem of inconsistent door sizes on construction sites, enabling efficient and low-cost use of the sliding door and improving construction efficiency and safety.

CN224064265UActive Publication Date: 2026-03-31CHINA HUASHI ENTERPRISES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The customized design of existing temporary construction gates results in poor versatility and inflexible adjustments. Furthermore, finished electric retractable gates are expensive and complex to operate, making them unsuitable for the economical and reasonable needs of construction sites.

Method used

A sliding door comprising a support unit, wheel frame, wheels, and connectors was designed. The modular frame is formed by adjustable length connectors and diagonal angle steel structure to adapt to different door width requirements. The bolt and nut connection facilitates disassembly and installation.

Benefits of technology

It enables flexible adjustment and efficient installation of sliding doors, reduces costs, improves construction efficiency and safety, and enhances structural stability and versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sliding doors, in particular to a sliding door for construction, which comprises at least two vertical rod units, wheel frames, wheels and connecting pieces, the vertical rod units are formed by steel tubes which are vertically assembled and welded to each other, and a frame foundation of the sliding door is formed; the two sides of each vertical rod unit are welded with angle steel which is inclined downwards, and lug rings used for being fixedly connected with the connecting pieces are welded to the lower portions of the angle steel. The wheel frame is of an inverted-U-shaped structure, is fixed to the two ends of a transverse steel tube at the bottom of the vertical rod unit through self-tapping screws and is used for supporting and guiding the door body to move. The wheels are mounted on the wheel frames and are fixed through bolts and nuts, so that the sliding door can stably slide on the rails; the connecting pieces are used for connecting and fixing the vertical rod units according to the width requirement of the gate, and the number of the vertical rod units and the number of the connecting pieces are increased or decreased to adapt to openings of different sizes.
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Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, specifically to a sliding door for construction. Background Technology

[0002] In the construction industry, the installation of temporary construction gates has always been a crucial aspect. Currently, most temporary construction gates are either double-leaf gates or prefabricated electric retractable gates. While these two methods meet the basic needs of construction sites to some extent, they still have many shortcomings and limitations.

[0003] Specifically, if double-leaf doors are used to enclose a gate, their design and manufacturing must be customized according to the actual width of the gate. Once the gate width is determined and the door panels are manufactured, these panels are only suitable for gates of that width and cannot be flexibly adjusted to accommodate different gate widths. This customized design results in poor versatility of the door panels; if the gate size changes or needs to be replaced, the original door panels are often unusable, leading to a waste of resources. Furthermore, double-leaf doors are usually a single, integral structure, making disassembly and transportation difficult, which inconveniences the flexible layout of the construction site and subsequent maintenance.

[0004] On the other hand, while purchasing ready-made electric sliding gates offers flexibility and convenience, the cost is relatively high. As a complete structure, the handling and installation of an electric sliding gate is relatively complex, requiring specialized equipment and personnel. Furthermore, temporary gates typically have short closing times, making the use of expensive electric sliding gates economically unfeasible. This is especially true for projects with short deadlines and limited budgets, where using electric sliding gates as a temporary gate solution is clearly not economically viable. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this application provides a sliding door for construction, which aims to improve construction efficiency, reduce usage costs, and better meet the actual needs of construction sites.

[0006] The technical means adopted by this utility model to solve its technical problem is: a sliding door for construction, the improvement of which is that it includes at least two upright units, a wheel frame, wheels, and connecting parts, wherein...

[0007] The upright unit is composed of steel tubes assembled and welded perpendicularly to each other, forming the frame foundation of the sliding door; angle steel is welded downward on both sides of the upright unit, and lugs for fixing and connecting the connectors are welded below the angle steel;

[0008] The wheel frame is an inverted "U" shaped structure, which is fixed to both ends of the horizontal steel tube at the bottom of the upright unit with self-tapping screws, and is used to support and guide the movement of the door; the wheel is installed on the wheel frame and fixed with bolts and nuts, so that the sliding door can slide smoothly on the track;

[0009] The connector is used to connect and fix multiple upright units according to the width requirements of the gate, and to increase or decrease the number of upright units and connectors to accommodate openings of different sizes.

[0010] In the above technical solution, the connector has two arc-shaped ends and is fixed to the ear ring by bolts and nuts to form the unfolding part of the sliding door.

[0011] In the above technical solution, the hypotenuse of the angle steel forms an inclination angle of 15-45° with the horizontal plane, and the earring is located at the end of the hypotenuse of the angle steel.

[0012] The radius of curvature of the arc-shaped connector described in the above technical solution matches the opening and closing trajectory of the sliding door, and its two ends are provided with assembly holes corresponding to the ear ring connection holes.

[0013] The connector described in the above technical solution adopts an adjustable length design.

[0014] The beneficial effects of this utility model are:

[0015] Sliding doors are formed by welding and fixing together steel tubes, wheels, connectors, etc. Most of the components are fixed by bolts and can be disassembled. The sliding door can be lengthened or shortened according to the width of the door, so as to close the door. Angle steel is welded downward on the connector of the uprights to ensure that the connectors of the two uprights do not become a straight line when the door is stretched. When the sliding door is retracted, the connectors retract downwards, thus avoiding space occupation. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a sliding door for construction, as shown in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the pole unit shown in an embodiment of the present utility model;

[0018] Figure 3 This is another structural schematic diagram of the pole unit shown in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the connector shown in an embodiment of the present utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0022] like Figure 1 As shown, this utility model provides a sliding door for construction, comprising: at least two upright units 1, a wheel frame 2, wheels 3, and connecting parts 4, wherein,

[0023] The upright unit 1 is composed of steel tubes 11 that are assembled and welded perpendicularly to each other, forming the frame foundation of the sliding door; angle steel 12 is welded to both sides of the upright unit 1, and ear rings 13 for fixing and connecting the connector 4 are welded below the angle steel 12.

[0024] The wheel frame 2 is an inverted "U" shaped structure, which is fixed to both ends of the horizontal steel tube 11 at the bottom of the upright unit 1 by self-tapping screws, and is used to support and guide the movement of the door; the wheel 3 is installed on the wheel frame 2 and fixed by bolts and nuts, so that the sliding door can slide smoothly on the track;

[0025] The connector 4 is used to connect and fix multiple upright units 1 according to the width requirements of the gate, and to increase or decrease the number of upright units 1 and connector 4 to accommodate openings of different sizes.

[0026] In an exemplary embodiment, when the construction sliding door is opened, the upright units on the left and right sides can be fixed to the doorpost A by bolts. Specifically, the upright unit is provided with standardized connection holes with a spacing distribution, and is fixed to the doorpost A by bolts through the holes.

[0027] The modular design of the sliding door is achieved through the combination of the upright unit and the connector, which allows the sliding door to be flexibly adjusted according to the opening size, enhancing its adaptability and versatility. The upright unit is composed of steel tubes that are assembled and welded perpendicularly to each other, forming a stable frame foundation. At the same time, the design of the downward angle steel and the ear ring further enhances the stability and strength of the structure, ensuring the safety of the sliding door during use.

[0028] The design of the wheel frame and wheels allows the sliding door to slide smoothly on the track, improving the smoothness of the door's movement and ease of operation. The various components of the sliding door use simple and effective connection methods, such as self-tapping screws and bolts and nuts. This design makes the installation and maintenance of the sliding door more convenient and faster, reducing construction costs and time costs.

[0029] In one possible implementation, the connector 4 has rounded ends and is fixed to the ear ring by bolts and nuts to form the unfolded part of the sliding door.

[0030] The rounded design helps increase the contact area with the earring, thereby improving the stability and durability of the connection. It also reduces stress concentration under stress, helps to distribute force, and prevents the connection from being damaged due to long-term stress.

[0031] Optionally, the connector can be a steel bar commonly found on construction sites, or it can be designed with an adjustable length. Using steel bars commonly found on construction sites as the connector material reduces costs and improves economic efficiency. At the same time, this design also takes practicality into account, ensuring that the connector meets functional requirements while being easy to maintain and replace; the adjustable length design further increases the flexibility of the connector, allowing it to adapt to the needs of sliding doors of different sizes and configurations.

[0032] In one possible implementation, the hypotenuse of the angle steel 12 forms an inclination angle of 15-45° with the horizontal plane, which helps to reduce the swaying of the sliding door during movement and improves safety; the ear ring 13 is located at the end of the hypotenuse of the angle steel 12. This layout facilitates the fixing and installation of the connector 4 while maintaining the compactness and aesthetics of the structure.

[0033] In one possible implementation, the radius of curvature of the arc-shaped connector 4 matches the opening and closing trajectory of the sliding door. The connector 4 smoothly guides the sliding door along the predetermined trajectory, reducing jamming or wobbling caused by trajectory mismatch, thereby improving the smoothness of the sliding door's operation. Its two ends are provided with mounting holes corresponding to the lug connection holes, making the installation process simpler and faster. Workers can easily fix the connector to the lug using bolts, nuts, or other fasteners without complex adjustments or calibrations. Furthermore, this standardized connection method also helps improve the consistency and accuracy of installation.

[0034] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A sliding door for construction, characterized in that, The utility model relates to a kind of sliding door frame, including: At least two vertical rod units, wheel frame, wheel and connecting piece, wherein, The vertical rod unit is made of mutually perpendicular assembly welding steel channel, forms the frame basis of sliding door;The angle steel of the vertical rod unit two sides is welded with downward, and the ear ring for fixing the connecting piece is welded below the angle steel, and the ear ring is used for fixing the connecting piece; The wheel frame is inverted "U type structure, is fixed in the bottom transverse steel channel of the vertical rod unit by self-tapping screw, is used to support and guide the movement of door body;The wheel is installed on wheel frame, is fixed by bolt nut, so that sliding door can smoothly slide on track; The connecting piece is used to connect and fix multiple vertical rod units according to the width requirement of gate, increase or reduce the number of vertical rod unit and connecting piece to adapt to different size opening.

2. A sliding door for construction according to claim 1, characterized in that The connecting piece is circular arc shape at both ends, is fixed on the ear ring by bolt nut, forms the unfolding part of sliding door.

3. A sliding door for construction according to claim 1, characterized in that The inclined edge of the angle steel forms 15-45 ° inclination angle with horizontal plane, and the ear ring is located at the end of the inclined edge of angle steel.

4. A sliding door for construction according to claim 2, characterized in that The curvature radius of the circular arc connecting piece matches the opening and closing track of sliding door, and both ends are provided with assembly hole corresponding to ear ring connection hole.

5. A sliding door for construction according to claim 1, characterized in that The connecting piece adopts adjustable length design.