Door body obstacle avoidance guide rail and automatic lifting door

Abstract

The embodiment of the invention provides a door body obstacle avoidance guide rail and an automatic lifting door. The door body obstacle avoidance guide rail comprises a vertical rail, a corner bent rail, an inclined rail, a door body and a connecting assembly. The ends of the vertical rail, the corner bent rail and the inclined rail are sequentially connected to form an obstacle avoidance guide rail, the vertical rail is connected to a wall and perpendicular to the horizontal plane, the bottom of the vertical rail is connected to the horizontal ground through a connecting assembly, and the top of the vertical rail is connected to one end of the corner bent rail through a connecting assembly. The inclined rail is located above the vertical rail, and the end of one side of the inclined rail is connected to the other end of the corner bent rail. The obstacle avoidance guide rails are arranged on the two opposite sides of the door body in the vertical direction, and the two opposite sides of the door body in the vertical direction are slidably connected to the obstacle avoidance guide rails. In the embodiment, the obstacle avoidance guide rail is jointly composed of the vertical rail, the corner bent rail and the inclined rail, the door body slides in the length direction of the obstacle avoidance guide rail to avoid obstacles such as a steel beam above the door body, and the space utilization rate above the door body is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial lifting doors, in particular to a door body obstacle avoidance guide rail and an automatic lifting door. Background Art

[0002] With the continuous development of automation and intelligent technology, automatic lifting doors have been widely used in various types of building facilities such as industrial plants, logistics warehouses, commercial buildings, etc. due to their easy opening, high safety performance and good appearance.

[0003] However, the lifting doors in the prior art generally adopt a vertical linear slide rail structure, that is, the lifting door is lifted upward or lowered downward along a preset vertical track. In this type of structure, when the lifting door rises to the top of the track, the top of the lifting door often causes spatial interference or direct collision with the original structure of the building (such as a canopy, steel beams, horizontal supports, etc.). In order to avoid obstacles, the prior art usually sets a reel under the obstacle. When the lifting door rises to the reeled state, it is wound onto the reel via the guide rail and reeled as a whole into the space area below the obstacle (such as a canopy beam, steel structure beam). Although the risk of the lifting door colliding with obstacles is reduced, the concentrated stacking state of the lifting doors seriously hinders the effective use of the space above the lifting door. Summary of the Invention

[0004] The embodiments of the present invention provide a door obstacle avoidance guide rail and an automatic lifting door, aiming to solve the problem in the prior art that the lifting door cannot effectively avoid obstacles above the door body, resulting in low utilization of the space above the door body.

[0005] In the first aspect, an embodiment of the present invention provides a door obstacle avoidance rail, which includes a vertical track, a corner curved rail, an inclined track, a door body and a connecting assembly; the ends of the vertical track, the corner curved rail and the inclined track are connected in sequence to form an obstacle avoidance rail, wherein the vertical track is connected to the wall and is perpendicular to the horizontal plane, the bottom of the vertical track is connected to the horizontal ground through the connecting assembly, the top of the vertical track is connected to one end of the corner curved rail through the connecting assembly, the inclined track is located above the vertical track and one end thereof is connected to the other end of the corner curved rail; the obstacle avoidance rail is arranged on two opposite sides of the door body in the vertical direction, and the two opposite sides of the door body are slidably connected to the obstacle avoidance rail.

[0006] In some embodiments, a fixing assembly is further included, and the end surface of the corner curved track facing the wall is connected to the wall through the fixing assembly; the fixing assembly includes a vertical pole and a plurality of horizontal poles; the vertical pole is connected to the wall, and the vertical pole is located directly above the vertical track and perpendicular to the horizontal plane; a plurality of the horizontal poles are spaced between the vertical poles and the inclined track, and the ends of the plurality of the horizontal poles are respectively connected to the vertical poles and the end surface of the inclined track facing the wall.

[0007] In some embodiments, the vertical track includes a vertical track body, a first connector through hole and a positioning pin through hole; a spacer ring between the positioning pin through hole and the first connector through hole is provided at the bottom of the vertical track body.

[0008] In some embodiments, the connecting assembly includes a first connecting member, a positioning pin and a reinforcing rib; the first connecting member is passed through the through hole of the first connecting member and is adapted to the embedded part on the horizontal ground; the positioning pin is adapted to the positioning pin through hole; the reinforcing rib is provided at the connection between the vertical track and the corner curved track.

[0009] In some embodiments, the connection assembly includes a C-shaped steel; the top of the vertical track and the connection point of the corner curved track are connected through the C-shaped steel.

[0010] In some embodiments, the first distance L between the bottom and the top of the vertical track is 2.5-5 m.

[0011] In some embodiments, the central angle a of the corner curved track is 45°-60°, and the arc length M of the corner curved track is 1.5-2.2 m.

[0012] In some embodiments, a second distance N between the bottom and the top of the inclined track is 1.8-3 m, and an angle b between the inclined track and the wall is 25°-40°.

[0013] In some embodiments, a buffer device is further included; the buffer device is connected to an end portion of the inclined track away from the corner curved track.

[0014] In the second aspect, an embodiment of the present invention also provides an automatic lifting door, which is like the door body obstacle avoidance guide rail in any of the aforementioned embodiments, and also includes a driving device; the driving device is arranged on the wall in the top area of the vertical track, and the driving device is connected to the door body to drive the door body to slide along the length direction of the obstacle avoidance guide rail.

[0015] An embodiment of the present invention provides a door body obstacle avoidance guide rail, which includes a vertical track, a corner curved track, an inclined track, a door body, and a connecting assembly; the ends of the vertical track, the corner curved track, and the inclined track are connected in sequence to form an obstacle avoidance guide rail, wherein the vertical track is connected to the wall and is perpendicular to the horizontal plane, the bottom of the vertical track is connected to the horizontal ground through the connecting assembly, the top of the vertical track is connected to one end of the corner curved track through the connecting assembly, the inclined track is located above the vertical track and one end thereof is connected to the other end of the corner curved track; the obstacle avoidance guide rail is provided on two opposite sides of the door body in the vertical direction, and the two opposite sides of the door body are slidably connected to the obstacle avoidance guide rail. In this embodiment, the obstacle avoidance guide rail is composed of a vertical track, a corner curved track, and an inclined track. The door body slides along the length direction of the obstacle avoidance guide rail to avoid obstacles such as steel beams above the door body, while improving the space utilization rate above the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of a door obstacle avoidance guide rail provided in an embodiment of the present invention;

[0018] Figure 2 A schematic side view of the structure of an obstacle avoidance guide rail in a door body obstacle avoidance guide rail provided in an embodiment of the present invention;

[0019] Figure 3 A side view structural diagram of a corner curved track in a door obstacle avoidance guide rail provided in an embodiment of the present invention.

[0020] The accompanying figures are as follows:

[0021] 100, vertical track; 200, corner curved track; 300, inclined track; 400, fixing assembly; 410, vertical pole; 420, horizontal bar; 500, wall. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0026] See also Figures 1 to 3 , Figure 1 A schematic diagram of the structure of a door obstacle avoidance guide rail provided in an embodiment of the present invention; Figure 2 A schematic side view of the structure of an obstacle avoidance guide rail in a door body obstacle avoidance guide rail provided in an embodiment of the present invention; Figure 3 A side view structural diagram of a corner curved track in a door obstacle avoidance guide rail provided in an embodiment of the present invention.

[0027] See again Figure 1 as well as Figure 2 , the door obstacle avoidance guide rail provided by an embodiment of the present invention includes a vertical track 100, a corner curved track 200, an inclined track 300, a door body and a connecting assembly; the ends of the vertical track 100, the corner curved track 200 and the inclined track 300 are connected in sequence to form an obstacle avoidance guide rail, wherein the vertical track 100 is connected to the wall 500 and is perpendicular to the horizontal plane, the bottom of the vertical track 100 is connected to the horizontal ground through the connecting assembly, the top of the vertical track 100 is connected to one end of the corner curved track 200 through the connecting assembly, the inclined track 300 is located above the vertical track 100 and one end thereof is connected to the other end of the corner curved track 200; the obstacle avoidance guide rail is arranged on two opposite sides of the door body in the vertical direction, and the two opposite sides of the door body are slidably connected to the obstacle avoidance guide rail.

[0028] In this embodiment, unlike traditional lifting doors that can only perform reciprocating linear motion along a fixed track to rise or fall vertically, this embodiment uses an obstacle avoidance guide rail composed of a vertical track 100, a corner curved track 200, and an inclined track 300 as a moving guide mechanism for the door body (not shown in the figure). The obstacle avoidance guide rail is designed with a preset nonlinear trajectory, so that the door body can avoid fixed structures such as steel beams and awnings set above the door body during the rising or falling process, thereby effectively avoiding collisions. In addition, during the rising stage of the door body, when it rises to the top of the vertical track 100, the door body can transition along the corner curved track 200 to the inclined track 300 section to continue moving, thereby preventing the door body from accumulating in the area below the obstacle, effectively improving the utilization rate of the space above the door body, and improving the rationality of the overall structural layout and operational safety.

[0029] In addition, special treatment can be performed on the surface of the obstacle avoidance rail to prevent the door body from sliding or deflecting during movement. Special treatments include anti-corrosion treatment, wear-resistant treatment, and lubrication treatment. Among them, for anti-corrosion treatment, such as hot-dip galvanizing, chrome plating or spraying anti-corrosion coating, the durability of the track in humid or corrosive environments can be enhanced; for wear-resistant treatment, surface quenching, carburizing or hard chrome plating can be used to increase the surface hardness of the track and reduce the friction loss of the door roller; for lubrication treatment, electroplating anti-friction alloys (such as babbitt alloys) or opening lubricating oil grooves can reduce running resistance and ensure smooth movement of the door body.

[0030] Specifically, the vertical track 100, serving as the foundational support structure for the entire obstacle avoidance guide rail, is typically constructed of high-strength low-alloy structural steel (e.g., Q355B) with high yield strength and excellent toughness, capable of withstanding the substantial loads generated during door operation. Its surface can be hot-dip galvanized, for example, to form a zinc layer with a thickness of no less than 85 μm. This effectively resists acid and alkali corrosion, extending its service life and ensuring stable operation even in humid industrial plants or coastal areas.

[0031] The vertical track 100 is fixed vertically to the wall 500, with its bottom perpendicular to the horizontal ground. The bottom of the vertical track 100 is fixed to the horizontal ground via a connecting assembly, and its top is precisely connected to one end of the corner curved track 200 via a connecting assembly, ensuring the stability and reliability of the door body during vertical operation and providing a solid guiding foundation for the door body to be raised and lowered.

[0032] The curved corner track 200 is a key component for achieving obstacle avoidance. Its curved design, optimized using ANSYS Finite Element Analysis Software (ANSYS), ensures smooth and seamless transitions between the vertical track 100 and the inclined track 300. Manufactured using a high-precision cold-bend forming process, the curved corner track 200 features a U-shaped guide groove that mates with the rollers on the door (not shown). This allows the door to transition naturally along the pre-set curved path when it reaches the top of the vertical track 100 during its ascent, cleverly avoiding obstacles such as overhead steel beams and awnings, minimizing collision risks and ensuring the door's safety.

[0033] The inclined track 300 is located obliquely above the vertical track 100 and is connected to the other end of the corner curved track 200. Its inclination angle is optimized and designed by three-dimensional modeling using mechanical design software (SolidWorks Mechanical Design Software, SolidWorks) based on the actual usage scenario and space requirements. The inclined track 300 is also made of high-strength steel (for example, Q345D). The surface of the inclined track 300 can be sprayed with epoxy zinc-rich primer and polyurethane topcoat to form an anti-slip and wear-resistant coating, which enhances the stability of the door body when it is running in the inclined section. After the door body rises along the corner curved track 200 to the inclined track 300 section, it can continue to move upward, thereby avoiding accumulation in the area under the obstacle, making full use of the space above the door body, and freeing up the space originally restricted by the obstacle, greatly improving space utilization. Whether in industrial plants, warehouses or large commercial facilities, this design can effectively improve the utilization efficiency of the site and optimize the overall layout. In addition, the connection between the corner curved track 200 and the inclined track 300 must ensure a smooth transition of the curve, and the curvature radius deviation at the connection should be ≤±0.5mm, which can be verified through three-dimensional modeling.

[0034] Rollers (not shown) are installed on opposite vertical sides of the door. These rollers mate closely with the U-shaped guide grooves of the obstacle avoidance rail (the vertical track, corner curved track 200, and inclined track 300 have identical U-shaped guide grooves on the door-facing sides), creating a smooth sliding connection. This sliding connection allows the door to move flexibly along the nonlinear trajectory of the obstacle avoidance rail. During ascent or descent, it precisely avoids obstacles along a pre-set path (along the length of the obstacle avoidance rail) while ensuring the door's stability during operation.

[0035] In one embodiment, if Figure 1As shown, it also includes a fixing component 400, and the end surface of the corner curved track 200 facing the wall 500 is connected to the wall 500 through the fixing component 400; the fixing component 400 includes a vertical pole 410 and a plurality of horizontal poles 420; the vertical pole 410 is connected to the wall 500, and the vertical pole 410 is located directly above the vertical track 100 and perpendicular to the horizontal plane; a plurality of the horizontal poles 420 are spaced between the vertical pole 410 and the inclined track 300, and the two ends of the plurality of the horizontal poles 420 are respectively connected to the vertical pole 410 and the end surface of the inclined track 300 facing the wall 500.

[0036] In this embodiment, the vertical rods 410 can be fixed to the wall 500 using anchor bolts, ensuring that the vertical rods 410 will not loosen or shift under long-term stress, thereby improving the stability and safety of the fixed structure as a whole. The vertical rods 410 are located directly above the vertical track 100 and are vertically coaxial with the vertical track 100. Therefore, they are perpendicular to the horizontal ground and provide a stable vertical support foundation for the crossbars 420 and the inclined track 300. A plurality of crossbars 420 are spaced between the vertical rods 410 and the inclined track 300. The crossbars 420 serve as connecting components between the vertical rods 410 and the inclined track 300, with their ends connected to the vertical rods 410 and the end surface of the inclined track 300 facing the wall 500, respectively. The crossbars 420 have different lengths. The closer the crossbars 420 are to the corner curved track 200 in the vertical direction, the shorter they are. Conversely, the farther the crossbars 420 are from the corner curved track 200, the longer they are. In addition, the present embodiment does not limit the number of cross bars 420, which can be provided according to actual construction needs.

[0037] Specifically, the vertical pole 410, as the core supporting component of the fixing assembly 400, can adopt hot-dip galvanized steel pipe (for example, Q235B). Hot-dip galvanized steel pipe has good strength and economy, can effectively prevent rust, and is suitable for a variety of indoor and outdoor environments.

[0038] Crossbar 420 can be constructed from Q345B square steel tubes, effectively bearing horizontal loads and bending moments, enhancing the overall structure's load-bearing capacity and deformation resistance. Crossbar 420 can be welded to the vertical support 410, creating a rigid connection between them. This effectively enhances the tensile strength of the overall fixing assembly 400 and significantly improves its reliability.

[0039] A customized U-shaped clamp combined with welding can be used to fix the crossbar 420 and the inclined track 300. On the end face of the inclined track 300 facing the wall 500, a fixing seat is welded at predetermined intervals (for example, 500 mm), and a mounting hole is provided on the fixing seat. The U-shaped clamp is formed by bending Q235B steel plate, and its opening size is adapted to the crossbar 420. The U-shaped clamp is fastened with M10 bolts to firmly fix the crossbar 420 on the inclined track 300. At the same time, spot welding is performed on the contact part between the U-shaped clamp and the crossbar 420 to further prevent the crossbar 420 from sliding. This fixing method is not only convenient for installation and disassembly, but also can adjust the position of the crossbar 420 according to actual installation requirements, and can withstand large horizontal loads, ensuring that the inclined track 300 remains stable during the operation of the door body.

[0040] In one embodiment, the vertical track 100 includes a vertical track 100 body, a first connector through-hole, and a positioning pin through-hole; a spacer ring between the positioning pin through-hole and the first connector through-hole is provided at the bottom of the vertical track 100 body.

[0041] Specifically, the connecting assembly includes a first connecting member, a positioning pin and a reinforcing rib; the first connecting member is passed through the through hole of the first connecting member and is adapted to the embedded part on the horizontal ground; the positioning pin is adapted to the positioning pin through hole; the reinforcing rib is arranged at the connection between the vertical rail 100 and the corner curved rail 200.

[0042] In this embodiment, the first connector (not shown) is preferably a high-strength expansion bolt, which is inserted through the through hole of the first connector and connects with the embedded parts preset on the horizontal ground to achieve the primary fixation of the vertical track 100. A positioning pin (not shown) is inserted through the positioning pin through hole and is used to assist in positioning the bottom of the vertical track 100 to prevent rotation or displacement caused by unbalanced loading or vibration. Reinforcement ribs (not shown) are welded or integrally formed between the connection between the vertical track 100 body and the corner curved track 200 to strengthen the rigidity of the connection node and improve the bending stiffness and fatigue strength of the track connection.

[0043] The diameter of the through-hole in the first connector is designed to accommodate standard high-strength expansion bolts, such as M12 or M16, ensuring connection strength while ensuring easy installation. Embedded components can be steel anchor plates or chemical anchors, selected based on the actual floor material and load requirements, ensuring the structural reliability and safety of the obstacle avoidance rail's overall fixation.

[0044] Specifically, the main body of the vertical track 100 can be made of Q355B low-alloy high-strength structural steel (or higher strength steel can be selected according to load requirements), which is hot-dip galvanized to prevent rust. The cross-section can be H-shaped steel, square steel pipe or I-shaped steel to ensure bending strength and stability under vertical load. Among them, if the main body of the vertical track 100 is made of square steel pipe, a square steel pipe with a rectangular cross-section of 100mm×50mm, a wall thickness of ≥5mm, and a load-bearing capacity of ≥500kg can be used, so as to control the deformation of the door body within the range of 0-1mm / m. The main body of the vertical track 100 is fixed to the wall 500 by a first connecting member, and its verticality deviation is controlled within the range of 0-1mm / m. Its bottom is fixed to the ground, and the top is tangentially connected to the corner curved track 200.

[0045] A connecting portion is provided at the bottom of the vertical track 100. This portion is either welded perpendicularly to the bottom of the vertical track 100 (i.e., it is connected to the bottom of the vertical track 100 and parallel to the horizontal ground) or integrally molded with the bottom of the track body. The connecting portion, which mates with the connecting assembly to secure the vertical track 100 to the horizontal ground, is rectangular or circular in shape and can be made of high-strength steel sheet.

[0046] The first connector through-hole is provided on the connecting portion at the bottom of the vertical rail 100 body, and is used to match with the high-strength fastener (i.e., the first connector) to achieve the main fixed connection between the vertical rail 100 and the horizontal ground. The positioning pin through-hole is provided on the connecting portion at the bottom of the vertical rail 100 body, and is arranged around the first connector through-hole, and is arranged in a ring with intervals from the first connector through-hole, and is used to insert the positioning pin to improve the structural positioning accuracy and anti-rotation stability. The bottom of the vertical rail 100 body is provided with a combination of a plurality of first connector through-holes and positioning pin through-holes according to the force requirements and construction process. The first connector through-holes are symmetrically or equidistantly distributed along the width direction of the vertical rail 100 to optimize the connection strength distribution and installation convenience.

[0047] The shape of the locating pin hole is compatible with the locating pin, so that the locating pin and the locating pin hole have an interference fit. For example, if the locating pin is a cylindrical pin, the locating pin hole is circular. During installation, a lubricant (e.g., butter) may be applied to the locating pin to facilitate removal.

[0048] The reinforcing ribs are triangular or L-shaped ribs with a thickness of 1.5 times the thickness of the track wall. The setting of 1.5 times the wall thickness allows the reinforcing ribs to form a reasonable strength gradient with the track body, which not only avoids insufficient support due to too thin thickness (such as the track sagging under the weight of the door body for a long time), but also prevents excessive thickness from increasing material costs and installation weight. The material of the reinforcing ribs is consistent with that of the track, and is welded to the inner side of the connection between the vertical track 100 and the corner curved track 200 (for example, welded along the web and flange of the track) so as not to affect the operation of the door body. When the door body slides along the guide rail to the inclined track 300, the reinforcing ribs can resist the lateral force generated by the door body due to the inclination angle and prevent the track from bending laterally; at the corner curved track 200, the reinforcing ribs can support the centrifugal force when the door body turns and avoid cracking at the track interface. In addition, in this embodiment, the side length of the ribs and the height of the weld feet are not limited, and can be set according to actual construction needs.

[0049] In one embodiment, the connection assembly includes a C-shaped steel; the top of the vertical track 100 and the connection point of the corner curved track 200 are connected through the C-shaped steel.

[0050] In this embodiment, the cross-section of the C-steel (not shown in the figure) is "C"-shaped, consisting of a web, an upper flange, and a lower flange, and the upper flange and the lower flange are perpendicular to the same end face of the web. During construction, after the top of the vertical track 100 is aligned with the end of the corner curved rail 200, the vertical track 100 and the corner curved rail 200 are both clamped into the groove of the C-steel to form a clamping structure. The connection between the upper flange and the lower flange of the C-steel and the vertical track 100 and the corner curved rail 200 can be welded or bolted. The material of the C-steel can be carbon structural steel (for example, Q235B or Q355B), which has high tensile strength and can meet the tensile force required between the vertical track 100 and the corner curved rail 200. When the C-steel is processed in the factory, its surface can be hot-dip galvanized (zinc layer thickness ≥ 85μm) or spray-painted for rust prevention to adapt to indoor and outdoor environments.

[0051] In one embodiment, if Figure 2 As shown, the first distance L between the bottom and the top of the vertical track 100 is 2.5-5m.

[0052] In this embodiment, the length of the vertical track 100 (that is, the first distance between the bottom of the vertical track 100 and the top thereof) is determined based on the height of the door body and the height of the obstacle to be avoided from the ground. According to practice, the first distance L between the bottom of the vertical track 100 and the top thereof is usually set within the range of 2.5-5m, and can be customized in design and installation according to different door body sizes, lifting heights, and steel beam positions. It has strong versatility and is suitable for a variety of different building structures and usage scenarios. It is a preferred solution that takes into account both technical indicators and engineering practice. For example, if the length is less than 2.5m, obstacle avoidance may not be achieved due to insufficient door body height or obstacle height; if the length exceeds 5m, the weight of the track increases, which is prone to sagging and deformation, and the installation cost (such as material consumption and the number of fixings) increases significantly.

[0053] In one embodiment, if Figure 2 as well as Figure 3 As shown, the central angle a of the corner curved track 200 is 45°-60°, and the arc length M of the corner curved track 200 is 1.5-2.2 m.

[0054] In this embodiment, the cross-section of the corner curved rail 200 is made of the same material as the vertical rail 100 (for example, Q355B), is hot-dip galvanized, and the arc segment is formed by cold bending to avoid the steel material from cold working and hardening, which leads to a decrease in strength. The corner curved rail 200 is an arc-shaped guide rail, and its central angle α is preferably set to between 45° and 60°, and the corresponding arc length M is set to between 1.5m and 2.2m, so that the transition of the door body from vertical guide operation to inclined guide operation is smooth and smooth, and at the same time, it is satisfied that the door body does not collide with obstacles such as steel beams when the lifting height is ≥2.5m. Under the premise of achieving a door body turning time of ≤3s, the central angle a and arc length M can be set according to actual needs within the preset range (central angle a is 45°-60°, and arc length M is 1.5-2.2m).

[0055] Specifically, the curved corner track 200 is constructed from high-strength, low-friction alloy steel or galvanized steel. Its cross-section aligns with the joint structure of the vertical track 100 and the inclined track 300, ensuring a continuous trajectory. The central angle α is determined based on the actual installation height and the angle of the inclined track 300. When α = 45°, it is suitable for scenarios requiring lower door sliding speeds; when α = 60°, it is suitable for scenarios requiring a shorter vertical sliding distance and improved sliding efficiency.

[0056] In one embodiment, if Figure 2 As shown, the second distance N between the bottom and the top of the inclined track 300 is 1.8-3 m, and the angle b between the inclined track 300 and the wall 500 is 25°-40°.

[0057] In this embodiment, the second distance between the bottom and top of the inclined track 300 is also the length of the inclined track 300. This range is designed to cover most door heights or the vertical height difference required for the door to avoid obstacles (such as roofs, beams, and pipes). A height of 1.8m is suitable for avoiding lower obstacles or smaller doors, while a height of 3.0m is suitable for avoiding higher spaces or large doors.

[0058] Specifically, when the length is less than 1.8m, the inclined section is too short, making the transition ineffective or requiring an excessively steep angle. When the length is greater than 3.0m, the guide rail structure becomes bulky, significantly increasing costs and requiring more installation space. Within the second distance N of 1.8-3m, a standard drive device (motor, chain, or belt) can provide sufficient thrust or pull while ensuring smooth operation of the door during the inclined section.

[0059] In addition, 25° to 40° is an optimized slope range. Although a too gentle slope (<25°) will run more smoothly, it will cause the horizontal projection length of the inclined track 300 to increase significantly, occupying more limited space in front of or behind the door (whether indoors or outdoors). A too steep slope (>40°) will cause the center of gravity of the door to shift more, and higher requirements will be placed on the strength, rigidity and installation accuracy of the guide rails, rollers and connecting components, which will easily lead to the risk of shaking, jamming and even derailment. In addition, the driving force required for the door body increases significantly with the increase of the slope, and higher requirements will be placed on the motor power and transmission system strength, which will easily lead to increased energy consumption, accelerated component wear and increased costs. In summary, the angle b between the inclined track 300 and the wall 500 is 25°-40°. Under the premise of ensuring that the door body runs basically smoothly and the burden on the drive system is reasonable, the horizontal space occupied by the inclined track 300 is minimized to the greatest extent, which is the best balance between space efficiency and operating performance.

[0060] When designing the second distance N and angle b based on actual construction requirements, the distance between the plane projection of the inclined track 300 on the wall 500 and obstacles such as steel beams should be controlled to be greater than or equal to 200 mm to avoid mechanical stress concentration due to excessive bending of the track or proximity to obstacles, thereby improving the overall operation stability and fatigue resistance.

[0061] In one embodiment, a buffer device is further included; the buffer device is connected to an end portion of the inclined track 300 away from the corner curved track 200 .

[0062] In this embodiment, a buffer device (not shown in the figure) is provided at one end of the inclined track 300 away from the corner curved track 200, and is used to absorb the impact energy generated when the door body runs to the end of the inclined track 300 (that is, the end of one side of the inclined track 300 away from the corner curved track 200), thereby achieving a flexible stop of the door body. The buffer device can be firmly fixed to the end of the inclined track 300 by means of a bracket, bolts or clips, and the impact surface or piston rod of the buffer device must face the direction of movement of the door body to ensure accurate contact with the door body. The type of the buffer device can be a hydraulic buffer, an elastic buffer (for example, rubber, polyurethane block, spring), or a composite buffer.

[0063] Specifically, the hydraulic buffer uses the principle of liquid damping to absorb impact energy and provide a smooth and adjustable buffering effect. It is suitable for heavier doors or scenarios that require precise control of the stopping speed. Its advantages are linear and stable buffering force, low noise and long life. The elastic buffer uses the elastic deformation of the material itself to absorb impact. It has a simple structure, low cost and easy installation. It is suitable for small and medium-sized doors or occasions with small impact energy. The composite buffer combines the advantages of elastomers and dampers (for example, hydraulic or pneumatic). The elastomer first absorbs most of the impact, and then the damper consumes the remaining energy, providing better buffering effect and resetability.

[0064] The buffer absorbs and disperses impact forces, significantly reducing peak stress on the door or inclined track 300, effectively extending the door's service life and reducing maintenance frequency and costs. The appropriate buffer can be selected based on the door's intended use, flexibly adapting to doors of varying weights and speeds, ensuring optimal buffering in a variety of applications.

[0065] An embodiment of the present invention also provides an automatic lifting door, which includes a door body obstacle avoidance guide rail as in any of the aforementioned embodiments, and also includes a driving device; the driving device is arranged on the wall 500 in the top area of the vertical track 100, and the driving device is connected to the door body to drive the door body to slide along the length direction of the obstacle avoidance guide rail.

[0066] In this embodiment, the driving device (not shown in the figure) includes a motor (for example, a permanent magnet synchronous servo motor or a variable frequency speed regulating motor), a chain or a steel wire rope, etc. The motor is fixed to the wall 500 corresponding to the area above the top of the door body when it is closed. The chain or steel wire rope is connected to the motor and the door body, so that the door body is driven by the chain or steel wire rope to move up or down along the length direction of the obstacle avoidance guide rail under the drive of the motor. When the motor is working, the motor torque can be automatically adjusted according to the weight of the door body and the operating conditions. Even if the weight of the door body changes (for example, accessories are installed on the door body), stable drive can still be maintained to reduce the risk of failure.

[0067] Through the design of the drive device and obstacle avoidance guide rail, the door body can not only achieve reliable automated movement, but also meet high standards in safety and versatility, providing users with an efficient, safe and convenient user experience.

[0068] In addition, during the specific construction, the installation process of each component is as follows:

[0069] S1. On-site measurement and parameter determination. First, the installation site is precisely measured to determine the key structural parameters of the door, including the door's actual dimensions (width and height); the maximum vertical travel required for lifting the door; and the spatial position and height of obstacles such as steel beams and canopies. Based on these measurements and in conjunction with the on-site spatial layout requirements, the vertical track 100, corner curved track 200, and inclined track 300 are custom-made to suit the required dimensions to avoid obstacles and provide guidance during door operation.

[0070] S2. Installation of obstacle avoidance guide rails. First, the vertical track 100 is vertically set on the two opposite sides of the door body in the vertical direction, and it is firmly fixed to the ground and / or the wall 500 structure through connecting components such as expansion bolts to ensure that its verticality and stability after installation meet the door body movement accuracy requirements. Secondly, the corner curved track 200 is installed on the top of the vertical track 100. The first end of the corner curved track 200 is precisely connected to the top of the vertical track 100, and the second end (that is, the outlet end of the corner curved track 200) extends toward the preset inclined direction in the upper space. During the installation process, the curvature radius, inclination angle and position accuracy of the corner curved track 200 need to be controlled to ensure that the movement trajectory of the door body is smooth and interference-free when it transitions from the vertical section to the inclined section. Finally, a seamless docking installation is performed between the outlet end of the corner curved track 200 and the inlet end of the inclined track 300. The inclined track 300 extends in an obstacle avoidance direction, and its angle and length are customized according to the position of the obstacle (such as a steel beam) to ensure that the door body avoids the obstacle during the lifting process and eventually reaches the target lifting height.

[0071] S3. Installation and operation debugging of the door body. The rollers or sliders on both sides of the door body are placed in the guide grooves of the obstacle avoidance guide rail (the obstacle avoidance guide rail consists of a vertical track 100, a corner curved track 200 and an inclined track 300). A drive system is provided for driving the door body to move up and down along the obstacle avoidance guide rail, such as a motor, a chain transmission mechanism or a steel rope, and the output end of the drive device is connected to the door body. Start the drive device and make the door body perform multiple reciprocating motion tests along the track to observe its operating status in the process of passing the corner curved track 200 and entering the inclined track 300. During the debugging process, focus on checking whether there are problems such as jamming, offset, vibration or interference with obstacles such as steel beams. If any abnormality is found, the installation position and angle of the track, or the matching parts of the door body and the track can be fine-tuned or repositioned until the door body can run smoothly and smoothly along the track system and achieve effective obstacle avoidance.

[0072] An embodiment of the present invention provides a door obstacle avoidance guide rail, which includes a vertical track 100, a corner curved rail 200, an inclined track 300, a door body and a connecting assembly; the ends of the vertical track 100, the corner curved rail 200 and the inclined track 300 are connected in sequence to form an obstacle avoidance guide rail, wherein the vertical track 100 is connected to the wall 500 and is perpendicular to the horizontal plane, the bottom of the vertical track 100 is connected to the horizontal ground through the connecting assembly, the top of the vertical track 100 is connected to one end of the corner curved rail 200 through the connecting assembly, the inclined track 300 is located above the vertical track 100 and one end thereof is connected to the other end of the corner curved rail 200; the obstacle avoidance guide rail is arranged on two opposite sides of the door body in the vertical direction, and the two opposite sides of the door body are slidably connected to the obstacle avoidance guide rail. In this embodiment, the obstacle avoidance guide rail is composed of a vertical track 100, a corner curved track 200 and an inclined track 300. The door body slides along the length direction of the obstacle avoidance guide rail to avoid obstacles such as steel beams above the door body, while improving the space utilization above the door body.

[0073] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A door obstacle avoidance guide rail, characterized in that: The invention comprises a vertical track, a corner curved track, an inclined track, a door body and a connecting assembly; the ends of the vertical track, the corner curved track and the inclined track are connected in sequence to form an obstacle avoidance guide rail, wherein the vertical track is connected to the wall and is perpendicular to the horizontal plane, the bottom of the vertical track is connected to the horizontal ground through the connecting assembly, the top of the vertical track is connected to one end of the corner curved track through the connecting assembly, and the inclined track is located above the vertical track and one end of the inclined track is connected to the other end of the corner curved track; The obstacle avoidance guide rails are arranged on two opposite sides of the door body in a vertical direction, and the two opposite sides of the door body in a vertical direction are slidably connected to the obstacle avoidance guide rails.

2. The door obstacle avoidance guide rail according to claim 1, characterized in that: It also includes a fixing component, and the end surface of the corner curved track facing the wall is connected to the wall through the fixing component; the fixing component includes a vertical pole and a plurality of horizontal poles; the vertical pole is connected to the wall, and the vertical pole is located directly above the vertical track and perpendicular to the horizontal plane; a plurality of the horizontal poles are spaced between the vertical poles and the inclined track, and the ends of the plurality of the horizontal poles are respectively connected to the vertical poles and the end surface of the inclined track facing the wall.

3. The door obstacle avoidance guide rail according to claim 1, characterized in that: The vertical track includes a vertical track body, a first connecting member through hole and a positioning pin through hole; a spacer ring between the positioning pin through hole and the first connecting member through hole is arranged at the bottom of the vertical track body.

4. The door obstacle avoidance guide rail according to claim 3, characterized in that: The connecting assembly includes a first connecting member, a positioning pin and a reinforcing rib; the first connecting member is passed through the first connecting member through hole and is adapted to the embedded part on the horizontal ground; the positioning pin is adapted to the positioning pin through hole; the reinforcing rib is provided at the connection between the vertical track and the corner curved track.

5. The door obstacle avoidance guide rail according to claim 1, characterized in that: The connecting assembly includes a C-shaped steel; the top of the vertical track and the connection point of the corner curved track are connected through the C-shaped steel.

6. The door obstacle avoidance guide rail according to claim 1, characterized in that: A first distance L between the bottom of the vertical track and the top thereof is 2.5-5 m.

7. The door obstacle avoidance guide rail according to claim 1, characterized in that: The central angle a of the corner curved track is 45°-60°, and the arc length M of the corner curved track is 1.5-2.2m.

8. The door obstacle avoidance guide rail according to claim 1, characterized in that: A second distance N between the bottom of the inclined track and the top thereof is 1.8-3 m, and an angle b between the inclined track and the wall is 25°-40°.

9. The door obstacle avoidance guide rail according to claim 1, characterized in that: It also includes a buffer device; the buffer device is connected to the end of one side of the inclined track away from the corner curved track.

10. An automatic lifting door, characterized in that: It comprises the door obstacle avoidance guide rail according to any one of claims 1 to 9, and further comprises a driving device; The driving device is arranged on the wall in the top area of the vertical track, and the driving device is connected to the door body to drive the door body to slide along the length direction of the obstacle avoidance guide rail.

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