Trackless multi-section telescopic linear door

Abstract

The utility model discloses a trackless multistage telescopic straight line door, including telescopic door body still include: guide card piece and guide rail, guide card piece and guide rail form sliding guide cooperation, guide card piece sets up at telescopic door body back side, and guide card piece includes the mounting panel of fixed in telescopic door body back side, a group of gyro wheel is rotatably connected to the mounting panel lower end surface through the pivot, and a group of gyro wheel respectively symmetrical distribution in the both sides of guide rail, guide rail is telescopic design, including fixed track and the extension track of sliding sleeve in fixed track outside, and the one end outside wall of extension track away from fixed track is integrally formed with a group of arc blocks, and the profile of arc block is adapted with the outer periphery of gyro wheel, the utility model discloses when using, the whole structure does not need ground burying magnet or exposing long guide rail, both guarantees the demand of guiding, and the damage of maximum degree to the flatness of ground is reduced, keeps the integrity and the aesthetic degree of entrance and exit ground.

Description

Technical Field

[0001] This utility model relates to the technical field of telescopic linear gates, and in particular to a trackless multi-segment telescopic linear gate. Background Technology

[0002] Telescopic linear gates, as a type of entrance and exit control device that can automatically extend and retract, are widely used in industrial parks, residential communities, large parking lots, logistics parks, and other places. Their core function is to open and close entrances and exits through the telescopic movement of multiple gate sections, while simultaneously ensuring safety and traffic efficiency. Currently, telescopic linear gates on the market are mainly divided into two categories: "tracked" and "trackless." Trackless telescopic linear gates, because they do not require digging trenches in the ground to lay fixed long guide rails, offer greater ease of installation and are gradually becoming the mainstream choice. However, key technical bottlenecks still exist in practical use.

[0003] Traditional tracked telescopic linear gates can ensure straight-line operation, but the guide rails must be exposed on the ground throughout, which not only damages the flatness of the ground but also obstructs the passage of vehicles and goods handling equipment. In addition, the surface of the guide rails is prone to dust and water accumulation, and long-term use can lead to rust and jamming. Furthermore, the exposed guide rails also affect the overall aesthetics of the entrance and exit. Trackless magnetic positioning uses magnets embedded in the ground at intervals, and sensors at the front of the gate detect the position of the magnets and adjust their direction. However, this method depends on the precision of the magnet intervals, and the gate is prone to "snake-like" movement during operation due to sensor response delays and interference from ground debris, making it impossible to maintain a straight-line trajectory.

[0004] To address these issues, we propose a trackless multi-segment telescopic linear gate. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a trackless multi-segment telescopic linear door.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A trackless multi-segment telescopic linear gate includes a telescopic gate body and also includes: The guide clip and guide rail form a sliding guide engagement to guide the telescopic gate body. The guide clip is located on the rear side of the telescopic gate body and includes a mounting plate fixed to the rear side of the telescopic gate body. A set of rollers is rotatably connected to the lower end face of the mounting plate through a rotating shaft, and the set of rollers are symmetrically distributed on both sides of the guide rail. The guide rail is designed to be telescopic, including a fixed rail and an extension rail that slides outside the fixed rail. The outer wall of the extension rail away from the fixed rail has a set of arc-shaped blocks integrally formed. The outline of the arc-shaped blocks is adapted to the outer circumference of the roller. The two work together to change the telescopic state of the guide rail.

[0007] Preferably, the outer surface of the guide rail is coated with a smooth polytetrafluoroethylene coating.

[0008] Preferably, the mounting plate is detachably connected to the telescopic gate body by bolts.

[0009] Preferably, the guide clip has 2-4 rollers, which are evenly spaced along the length of the guide rail.

[0010] Preferably, the extended track has a C-shaped design and is arranged to surround the fixed track on the outside.

[0011] Preferably, the outer wall of the fixed track is provided with a long strip-shaped guide groove, and the inner wall of the extended track is integrally formed with a guide strip adapted to the guide groove, and the guide strip is slidably embedded in the guide groove.

[0012] Preferably, magnetic blocks are embedded on the side of the arc-shaped block facing the roller and on the outer circumference of the roller, and the two magnetic blocks have opposite magnetism. The magnetic blocks are neodymium iron boron permanent magnets, and the magnetic blocks are glued and fixed in the preset grooves of the arc-shaped block and the roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model's guide rail adopts a telescopic structure of a fixed track and an extension track. When the door is retracted, the extension track is housed within the fixed track. The overall length of the guide rail is short, and it is partially hidden under the telescopic door, avoiding the ground protrusion caused by the exposure of traditional fixed guide rails. When the door extends, rollers push the extension track out through arc-shaped blocks, providing guidance for the far end of the door. This allows one section of the straight door to move forward along the guide rail, while the other straight doors move straight due to inertia, ensuring the straight doors travel in a straight line. This method prevents the straight doors from tilting during operation. The overall structure eliminates the need for buried magnets or exposed long guide rails, ensuring guidance while minimizing damage to the ground's flatness, maintaining the integrity and aesthetics of the entrance / exit floor. Meanwhile, the matching design of the curved block and the roller ensures that the extension track can be extended and retracted naturally and smoothly; the magnetic blocks with opposite magnetism not only prevent the roller and the curved block from falling off when they are in contact, but also drive the extension track to automatically retract when the door retracts through magnetic attraction, improving the convenience of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the guide clip and guide rail of this utility model; Figure 3 This is a schematic diagram of the structure of the guide card of this utility model when it pushes the extension track to move; Figure 4This is a schematic diagram of the guide rail and its auxiliary structures of this utility model.

[0015] In the diagram: 1- Retractable gate body, 2- Guide clip, 3- Guide rail, 4- Mounting plate, 5- Roller, 6- Fixed track, 7- Extension track, 701- Guide groove, 702- Guide strip, 8- Arc block, 801- Magnetic block. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-2 A trackless multi-segment telescopic linear gate includes a telescopic gate body 1, which is typically driven by a DC geared motor at the rear end. The motor output shaft drives the telescopic linkage assembly of the gate body through gear transmission, causing the multiple gate segments to extend along a preset direction (away from the fixed end). The gate body is characterized by further comprising: Guide clip 2 and guide rail 3 form a sliding guide engagement to guide the telescopic gate body 1. Guide clip 2 is located on the rear side of telescopic gate body 1. Guide clip 2 includes a mounting plate 4 fixed to the rear side of telescopic gate body 1. The mounting plate 4 is detachably connected to telescopic gate body 1 by bolts. Mounting holes for bolt engagement are provided on both sides. The mounting plate 4 can be quickly disassembled and assembled, thereby disassembling the entire guide clip 2. Repair or replacement can be performed if the rollers are damaged. A set of rollers 5 is rotatably connected to the lower end face of the mounting plate 4 through a rotating shaft. The set of rollers 5 is symmetrically distributed on both sides of the guide rail 3. The number of rollers 5 in the guide clip 2 is 2-4. The number of rollers 5 can be increased according to actual needs to ensure the stability of the fit with the guide rail 3 and to ensure that they are evenly distributed along the length of the guide rail 3. Reference Figure 3-4 The guide rail 3 is a telescopic design, which allows it to be "hidden" when the door is retracted. It includes a fixed track 6 and an extension track 7 that slides outside the fixed track 6. The fixed track 6 is made of extruded aluminum alloy profile and is fixed to the ground or a groove in the ground using expansion bolts. The extension track 7 is a C-shaped aluminum alloy profile with an inner wall dimension adapted to the outer wall of the fixed track 6. It slides along the length of the fixed track 6. The outer surface of the guide rail 3 (including the fixed track 6 and the extension track 7) is coated with... The rollers are coated with a smooth polytetrafluoroethylene coating, which greatly reduces the frictional resistance between the rollers and the guide rail, thus reducing the energy consumption of the door operation. The outer wall of the fixed track 6 is provided with a long strip-shaped guide groove 701. The inner wall of the extension track 7 is integrally formed with a guide strip 702 that matches the guide groove. The guide strip 702 is slidably embedded in the guide groove 701. Both ends of the guide groove 701 are closed. The guide strip 702 and the guide groove 701 cooperate to ensure that the extension track 7 always stably surrounds the outside of the fixed track 6, preventing it from shaking and falling off during the extension and retraction process. Reference Figure 4An arc-shaped block 8 is integrally formed on the outer wall of the end of the extended track 7 away from the fixed track 6. The outline of the arc-shaped block 8 is adapted to the outer peripheral surface of the roller 5. The two work together to change the extension and retraction state of the guide rail 3. Magnetic blocks 801 are embedded on the side of the arc-shaped block 8 facing the roller 5 and on the outer peripheral surface of the roller 5. The two magnetic blocks 801 have opposite magnetic properties. When the roller 5 moves to the arc-shaped block 8, the two are temporarily fixed by magnetic attraction. The magnetic blocks 801 are neodymium iron boron permanent magnets and are fixed to the arc-shaped block 8 and the roller 5 by adhesive. Within the pre-set groove, the surface after pasting is flush with the surface of the curved block / roller without any protrusions. During the door's extension process, when the roller 5 moves to the position of the curved block 8, the magnetic adhesion ensures that the roller 5 and the curved block 5 move synchronously, preventing slippage that would prevent the extension track from extending. When the door retracts, the magnetic pull drives the extension track 7 to automatically retract to the outside of the fixed track 6, requiring no additional power drive, simplifying the structure and saving energy. Furthermore, when the extension track 7 is fully reset to the upper side of the fixed track 6, the magnetic force is broken by the resistance, allowing the roller 5 to continue moving to complete the reset.

[0021] Based on the above structure, the present invention has the following embodiments: Before use, the telescopic gate body 1 is in a fully retracted state. The roller 5 of the guide clip 2 is located above the fixed track 6 of the guide rail 3, and at the end furthest from the extension track 7. The extension track 7 is completely fitted over the fixed track 6, and the two are completely flush. When the telescopic gate body 1 is extended, the guide clip 2 on the rear side of the gate moves synchronously with the gate body. The roller 5 rolls along the upper surface of the fixed track 6. The guide rail 3 is limited by the rollers 5 on both sides, ensuring that the gate body always extends in a straight line. When the gate body extends more than halfway, the roller 5 moves to the end of the fixed track 6 and contacts the arc-shaped block 8. The two are attracted by the magnetic block 801. As the roller 5 continues to move with the door, it applies a horizontal thrust to the extension track 7 via the arc block 8, gradually extending outward along the fixed track 6, providing guidance and support for the subsequent extension of the door. When the extension track 7 is fully extended, the straight door where the roller 5 is located stops, while the other straight doors move straight in the direction of inertia, allowing the straight doors to move in a straight line, thus completing the closing process. When opening, the telescopic door body 1 retracts. During this process, the roller 5, in conjunction with the arc block, can drive the extension track 7 to reset. After resetting, the magnetic force is broken by the resistance, allowing the roller 5 to still move and return to its original position, thus completing the opening process.

[0022] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A trackless multi-segment telescopic linear gate, comprising a telescopic gate body (1), characterized in that, Also includes: The guide clip (2) and the guide rail (3) form a sliding guide engagement to guide the telescopic gate body (1). The guide clip (2) is located on the rear side of the telescopic gate body (1). The guide clip (2) includes a mounting plate (4) fixed to the rear side of the telescopic gate body (1). The lower end face of the mounting plate (4) is rotatably connected to a set of rollers (5) through a rotating shaft. The set of rollers (5) are symmetrically distributed on both sides of the guide rail (3). The guide rail (3) is designed to be telescopic, including a fixed rail (6) and an extension rail (7) that is slidably fitted outside the fixed rail (6). The outer side wall of the extension rail (7) away from the fixed rail (6) is integrally formed with a set of arc blocks (8). The outline of the arc blocks (8) is adapted to the outer peripheral surface of the roller (5). The two work together to change the telescopic state of the guide rail (3).

2. The trackless multi-segment telescopic linear gate according to claim 1, characterized in that, The outer surface of the guide rail (3) is coated with a smooth polytetrafluoroethylene coating.

3. A trackless multi-segment telescopic linear gate according to claim 1, characterized in that, The mounting plate (4) is detachably connected to the telescopic gate body (1) by bolts.

4. A trackless multi-segment telescopic linear gate according to claim 1, characterized in that, The guide clip (2) has 2-4 rollers (5) that are evenly spaced along the length of the guide rail (3).

5. A trackless multi-segment telescopic linear gate according to claim 1, characterized in that, The extended track (7) is C-shaped and surrounds the fixed track (6) on the outside.

6. A trackless multi-segment telescopic linear gate according to claim 1, characterized in that, The outer wall of the fixed track (6) is provided with a long guide groove (701), and the inner wall of the extended track (7) is integrally formed with a guide strip (702) that is adapted to the guide groove, and the guide strip (702) is slidably embedded in the guide groove (701).

7. A trackless multi-segment telescopic linear gate according to claim 1, characterized in that, The arc-shaped block (8) facing the roller (5) and the outer peripheral surface of the roller (5) are both equipped with magnetic blocks (801), and the two magnetic blocks (801) have opposite magnetism. The magnetic blocks (801) are neodymium iron boron permanent magnets, and the magnetic blocks (801) are glued and fixed in the preset grooves of the arc-shaped block (8) and the roller (5).

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