A front drive support structure for a framed retractable door

By introducing a front-drive support structure into the segmented electric sliding gate and utilizing the slide rail roller and sprocket transmission group, the problems of high friction and complex transmission between the active and passive gates are solved, achieving a more stable transmission and guiding effect.

CN224363870UActive Publication Date: 2026-06-16SHIJIAZHUANG LINRONG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIJIAZHUANG LINRONG TECH CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing segmented electric sliding gate has high friction in the sliding connection between the active and passive gates and has a complex transmission method, resulting in insufficient stability.

Method used

It adopts a front-drive support structure, including left and right side brackets, top connecting rod, slide rail rod, slide rail roller, power platform and drive motor. The stable transmission and guidance of the active door and the driven door are realized through the sprocket transmission group, and the stability is improved by using casters and anti-slip texture.

Benefits of technology

It improves the stability and transmission efficiency of segmented electric gates, simplifies the transmission method, and enhances the stability and guiding effect of sliding connections.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224363870U_ABST
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Abstract

The utility model discloses a kind of front drive support structures for frame type retractable door, for sectional frame electric door, sectional frame electric door structure includes fixed end door frame, middle movable door frame, front end drive door frame;Front end drive door frame includes: left side support and right side support, both are fixedly connected by top connecting rod;First slide rail rod and second slide rail rod, parallelly arranged below top connecting rod, and the distance between its two is the distance of slide rail roller, for installing slide rail roller;Power platform is set in the front end of the bottom of front drive support, and the bottom of power platform is front drive ground wheel;Bottom connecting piece is set in the bottom of left side support, for supporting stable door body;The utility model discloses a kind of front drive support structures for frame type retractable door, realize the transmission and orientation between active door and driven door, improve the stability of sectional electric door.
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Description

Technical Field

[0001] This utility model belongs to the field of electric retractable gate technology, specifically relating to a front support structure for a frame-type retractable gate. Background Technology

[0002] Electric retractable gates, also known as "electric gates" or "electric folding gates," mainly consist of a gate body, a drive unit, and a control system. The gate body is made of high-quality aluminum alloy or ordinary square tubing and is mainly divided into two types: hinged and segmented. Among them, segmented electric retractable gates are more stable during use.

[0003] Existing segmented electric retractable gates are mainly formed by the sliding cooperation between the active gate and the driven gate. However, the sliding connection between the active gate and the driven gate is assisted by simple slide rails and sliders for limiting and guiding, which results in relatively large friction. Moreover, the existing structure uses chains or racks and pinions and steel cables to drive each segmented gate, making the transmission method complex.

[0004] In order to provide a better transmission and guidance between the active and passive doors and improve the stability of the segmented electric gate, it is urgent to design a segmented electric telescopic gate to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the above problems by providing a front-drive support structure for frame-type telescopic gates, enabling transmission and guidance between the active and passive gates, and improving the stability of segmented electric gates.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a front-drive support structure for a frame-type telescopic gate, used for a segmented frame electric gate, the segmented frame electric gate further includes a fixed end door frame that is stationary, a middle movable door frame that can extend or retract in length, and a front-end drive door frame that provides power to the telescopic gate; the front-end drive door frame includes: a left side bracket (101) and a right side bracket (102), which are fixedly connected by a top connecting rod (2); a first slide rail rod (21) and a second slide rail rod (22), which are parallel to each other below the top connecting rod (2), and are spaced apart by a slide rail roller, for installing slide rail rollers (3). 1) A power platform (4) is set at the front end of the bottom of the front drive bracket, and the bottom of the power platform (4) is a front drive ground wheel (5); the bottom connector (32) is set at the bottom of the left support (101) to support and stabilize the door body; a fixing piece (3) for supporting the sliding groove of the sliding roller is also welded between the first slide rail rod (21) and the second slide rail rod (22), which is welded to the outer area of ​​the slide rail rod; the slide roller (31) is fixed at the lower end of the left support (101) and is located in the sliding groove between the first slide rail rod (21) and the second slide rail rod (22); there are two slide rollers (31), which are respectively set on the two symmetrical sides of the left support (101).

[0007] Furthermore, the surface of the first slide rail (21) in the upper position is equipped with a snap fastener (33) for linkage with other segmented door components.

[0008] Furthermore, the sprocket drive assembly (7) on the power platform (4) is connected to the front drive ground wheel (5) below, and the sprocket drive assembly (7) is connected in sequence to the gearbox (6), bevel gear assembly (8), and drive motor (9), and is electrically connected to the control circuit board (10), which is electrically connected to the power supply; the bevel gear assembly (8) includes an input gear and an output gear that mesh perpendicularly with each other, the input gear is connected to the output shaft of the drive motor (9), and the output gear drives the sprocket drive assembly (7).

[0009] Furthermore, the front-drive ground wheel (5) is a swivel wheel with anti-slip texture on the bottom.

[0010] Furthermore, the length of the bottom connector (32) of the fixed end door frame is greater than the length of the bottom connector (32) of the middle movable door frame, and the length of the bottom connector (32) of the middle movable door frame is greater than the length of the bottom connector (32) of the front drive door frame.

[0011] However, the right-side brackets of each fixed end door frame, intermediate movable door frame, and front drive door frame have the same external length and width; that is, the front drive bracket 102, intermediate bracket 103, and right-side bracket of the fixed section door frame have the same length and width.

[0012] However, the width of the door frame material gradually decreases from the very end of the door frame inwards, which can be seen as the fixed door frame enclosing the middle movable door frame and the front drive door frame.

[0013] Furthermore, the middle movable door frame has symmetrically arranged middle ground wheels (104) on both sides below the middle support (103).

[0014] Furthermore, the intermediate support (103) is a telescopic sleeve structure with a telescopic adjustment range of ±200mm, and is fixed by a wing bolt.

[0015] Furthermore, the V-groove angle of the slide rail roller (31) is 90°±2°, and the flange hardness of the first slide rail rod (21) and the second slide rail rod (22) is ≥HRC55.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a front-drive support structure for frame-type telescopic gates, realizing the transmission and guidance between the active gate and the driven gate, and improving the stability of segmented electric gates.

[0017] The frame of the power system of this utility model is made of welded steel structure, which is sturdy and reliable; the power drive is at the front end, which is simple and efficient for transmission.

[0018] The segmented doors are connected by sliding rail rollers. The sliding rail rollers are located in the sliding rail groove of the previous segmented door (formed by the gap between the first and second sliding rail rods). Furthermore, the fixing plate further stabilizes the sliding rail groove, preventing deformation from affecting the sliding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front drive support structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the segmented combination and disassembly structure of this utility model.

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at point C.

[0022] Figure 4 for Figure 2 Schematic diagram of the structure at point D.

[0023] Figure 5 This is the electrical schematic diagram of the power system of this utility model.

[0024] The text labels in the diagram are as follows: 101, left side bracket; 102, front drive bracket; 103, middle bracket; 104, middle ground wheel;

[0025] 2. Top connecting rod; 21. First slide rail rod; 22. Second slide rail rod;

[0026] 3. Fixing plate; 31. Slide rail roller; 32. Bottom connector; 33. Buckle;

[0027] 4. Power unit; 5. Front-drive wheels; 6. Gearbox; 7. Sprocket drive assembly; 8. Bevel gear assembly; 9. Drive motor; 10. Control circuit board;

[0028] A is a fixed-end door frame; B and C are intermediate movable door frames; D is a front-end driven door frame. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0030] See Figure 1-5 This utility model discloses a front-drive support structure for a frame-type telescopic gate, specifically for a segmented frame electric gate. The segmented frame electric gate structure includes a fixed end door frame, a middle movable door frame capable of telescopic extension, and a front-end drive door frame that provides power to the telescopic gate. The front-end drive door frame includes a left-side bracket 101 and a right-side bracket 102, which are fixedly connected by a top connecting rod 2. A first slide rail rod 21 and a second slide rail rod 22 are parallel to each other below the top connecting rod 2, spaced apart by a slide rail roller, for mounting slide rail rollers. 31; A power platform 4 is set at the front end of the bottom of the front drive bracket, and the bottom of the power platform 4 is a front drive ground wheel 5; The bottom connector 32 is set at the bottom of the left bracket 101 to support and stabilize the door body; A fixing piece 3 for supporting the sliding groove of the sliding rail roller is also welded between the first slide rail rod 21 and the second slide rail rod 22, which is welded to the outer area of ​​the slide rail rod; The slide rail roller 31 is fixed at the lower end of the left bracket 101 and is located in the sliding groove between the first slide rail rod 21 and the second slide rail rod 22; There are two slide rail rollers 31, which are respectively set on the two symmetrical sides of the left bracket 101.

[0031] Preferably, the surface of the first slide rail 21 in the upper position is equipped with a fastener 33 for linkage and cooperation with other segmented door components.

[0032] Preferably, the sprocket drive assembly 7 on the power platform 4 is connected to the front drive ground wheel 5 below, and the sprocket drive assembly 7 is sequentially connected to the gearbox 6, the bevel gear set 8, and the drive motor 9, and is electrically connected to the control circuit board 10, which is electrically connected to the power supply; the bevel gear set 8 includes an input gear and an output gear that mesh perpendicularly with each other, the input gear is connected to the output shaft of the drive motor 9, and the output gear drives the sprocket drive assembly 7.

[0033] Preferably, the front-drive ground wheel 5 is a swivel wheel with anti-slip texture on the bottom.

[0034] Preferably, the length of the bottom connector 32 of the fixed end door frame is greater than the length of the bottom connector 32 of the middle movable door frame, and the length of the bottom connector 32 of the middle movable door frame is greater than the length of the bottom connector 32 of the front drive door frame.

[0035] However, the right-side brackets of each fixed end door frame, intermediate movable door frame, and front drive door frame have the same external length and width; that is, the front drive bracket 102, intermediate bracket 103, and right-side bracket of the fixed section door frame have the same length and width.

[0036] However, the width of the door frame material gradually decreases from the very end of the door frame inwards, which can be seen as the fixed door frame enclosing the middle movable door frame and the front drive door frame.

[0037] At the same time, through Figures 2-4 It can be seen that the brackets on the right side of the middle movable door frame and the front drive door frame, namely the middle bracket 103 and the front drive bracket 102, are vertically equipped with fixing rods, which are used to fix the top connecting rods, the first slide rail rod 21, and the second slide rail rod 22, respectively. Meanwhile, the distance from the outermost rod to the left and right sides of these fixing rods increases sequentially from the fixed end door frame, the middle movable door frame, and the front drive door frame. In other words, the length of the bottom connecting piece 32 decreases, thus facilitating wrapping.

[0038] Preferably, the middle movable door frame has symmetrically arranged middle ground wheels 104 on both sides below the middle support 103.

[0039] Preferably, the intermediate support 103 is a telescopic sleeve structure with a telescopic adjustment range of ±200mm, and is fixed by a wing bolt.

[0040] Preferably, the V-groove angle of the slide rail roller 31 is 90°±2°, and the flange hardness of the first slide rail rod 21 and the second slide rail rod 22 is ≥HRC55.

[0041] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A front-drive support structure for a frame-type telescopic gate, used in a segmented frame electric gate, characterized in that, The segmented frame electric gate also includes a fixed end door frame that is stationary, a middle movable door frame that can extend or retract in length, and a front drive door frame that provides power to the telescopic gate. The front drive door frame includes a left support (101) and a right support (102), which are fixedly connected by a top connecting rod (2); The first slide rail rod (21) and the second slide rail rod (22) are arranged parallel to each other below the top connecting rod (2), and there is a distance of one slide rail roller between them, for installing the slide rail roller (31). The power platform (4) is located at the front end of the bottom of the front drive bracket, and the bottom of the power platform (4) is the front drive ground wheel (5). The bottom connector (32) is located at the bottom of the left bracket (101) to support and stabilize the door body; A fixing piece (3) for supporting the sliding groove of the slide rail roller is also welded between the first slide rail rod (21) and the second slide rail rod (22), which is welded to the outer area of ​​the slide rail rod; The slide rail roller (31) is fixed at the lower end of the left side bracket (101) and is located in the groove between the first slide rail rod (21) and the second slide rail rod (22); there are two slide rail rollers (31), which are respectively located on the two symmetrical sides of the left side bracket (101).

2. The front support structure for a frame-type telescopic gate according to claim 1, characterized in that, The surface of the first slide rail (21) located at the top is equipped with a snap fastener (33) for linkage with other segmented door components.

3. The front support structure for a frame-type telescopic gate according to claim 1, characterized in that, The power platform (4) has a sprocket drive assembly (7) connected to the front drive ground wheel (5) below. The sprocket drive assembly (7) is connected in sequence to the gearbox (6), bevel gear assembly (8), and drive motor (9), and is electrically connected to the control circuit board (10). The control circuit board (10) is electrically connected to the power supply. The bevel gear assembly (8) includes an input gear and an output gear that mesh perpendicularly with each other. The input gear is connected to the output shaft of the drive motor (9), and the output gear drives the sprocket drive assembly (7).

4. The front support structure for a frame-type telescopic gate according to claim 1, characterized in that, The front-drive ground wheel (5) is a swivel wheel with anti-slip texture on the bottom.

5. A front-drive support structure for a frame-type telescopic gate according to claim 1, characterized in that, The length of the bottom connector (32) of the fixed end door frame is greater than the length of the bottom connector (32) of the middle movable door frame, and the length of the bottom connector (32) of the middle movable door frame is greater than the length of the bottom connector (32) of the front drive door frame.

6. The front support structure for a frame-type telescopic gate according to claim 1, characterized in that, The middle movable door frame has symmetrically arranged middle ground wheels (104) on both sides below the middle support (103).

7. A front-drive support structure for a frame-type telescopic gate according to claim 6, characterized in that, The intermediate support (103) is a telescopic sleeve structure with a telescopic adjustment range of ±200mm, and is fixed by a wing bolt.

8. The front support structure for a frame-type telescopic gate according to claim 1, characterized in that, The V-groove angle of the slide rail roller (31) is 90°±2°, and the flange hardness of the first slide rail rod (21) and the second slide rail rod (22) is ≥HRC55.