Lower track structure of hangar door

Abstract

The utility model discloses a lower track structure of a hangar door, which comprises a support steel frame, a bottom plate mounted in a track groove B reserved on the ground, support rods mounted on two sides of the surface of the bottom plate, and a cross beam with two ends respectively connected with the support rods, the abutting assembly comprises an anti-deflection column vertically installed on the bottom plate, a compression spring with the bottom end arranged on the outer side of the anti-deflection column in a sleeving mode, and a compression round block connected with the top end of the compression spring; a guide rail assembly; when the lower rail is installed, the design that the lower rail is convenient to assemble and the damaged part is replaced is adopted, the guide rail plate is assembled in the limiting plate, the clamping column penetrates through the limiting plate and the cross beam, the clamping column is limited, the split type guide rail plate is accurately assembled in the limiting plate, the limiting column limits the guide rail plate, and the limiting block is limited by the cross beam; according to the guide rail plate convenient to disassemble, assemble and assemble, the damaged guide rail plate can be disassembled and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hangar doors, and particularly relates to a lower track structure of a hangar door. Background Art

[0002] The hangar door, abbreviated as the aircraft hangar, refers to the large-span single-story building door for repairing aircraft. The door opening and door body of the hangar door are relatively large. The hangar door is mainly divided into a push-pull hangar door, an upper-folded hangar door, and a side-rotating hangar door. The push-pull hangar door mainly consists of components such as a large door frame, a decorative surface, a panel, a lower track, a walking wheel, an upper guide, an upper guide wheel, a sealing system, a driving system, a transmission system, an electrical control system, and a safety protection device. The door leaf is supported on the lower track by the lower walking wheel, and the door opener drives the lower load-bearing wheel to rotate through the transmission component, thereby realizing the opening and closing of the door leaf.

[0003] The lower track of the push-pull hangar door is generally assembled on the steel beam frame in the track groove reserved on the ground through welding or fixing parts fixed by multiple bolts. The lower track and the steel beam frame form an integral structure. During long-term use, the surface of the lower track guide rail may rust and be damaged due to dust accumulation and wear, which may cause the hangar door to not move normally or operate smoothly, and it is necessary to clean or replace it. In addition, if a certain part of the long lower track is damaged, the damaged part cannot be replaced, and the fixing method of the lower track is relatively cumbersome, making it inconvenient to disassemble the lower track; when installing the lower track, there is a problem that there is no design for conveniently assembling the lower track and replacing the damaged part. Therefore, this application proposes a lower track structure of a hangar door. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lower track structure of a hangar door to solve the problem in the above background art that there is no design for conveniently assembling the lower track and replacing the damaged part when installing the lower track.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A lower track structure of a hangar door, comprising

[0006] A support steel frame, including a bottom plate installed in the reserved track groove B on the ground, support rods installed on both sides of the surface of the bottom plate, and cross beams respectively connected to the two ends of the support rods;

[0007] An abutting component, including an anti-deviation column vertically installed on the bottom plate, a compression spring sleeved on the outside of the anti-deviation column at the bottom end, and a compression round block connected to the top end of the compression spring;

[0008] The guide rail assembly includes a limit plate that fits against the ground, a guide rail plate that is detachably combined with the limit plate, a fixed guide rail installed at the center position on the inner surface of the guide rail plate, a clamping post installed on the bottom surface of the guide rail plate, and a limiting post that penetrates through the limit plate and the guide rail plate. A limiting block is provided at the bottom end of the limiting post.

[0009] Preferably, rubber discs are attached to the surface of the guide rail plate. Rectangular through holes are provided in the guide rail plate and the rubber discs, and the limiting block is matched with the through holes.

[0010] Preferably, a flip cover is connected to the position on the surface of the guide rail plate close to the rubber disc through a hinge. An observation port covered by the flip cover is provided on the guide rail plate.

[0011] Preferably, the limiting post is perpendicular to the limiting block. The top end of the limiting post is a "T" - shaped structure, and a square groove is provided at the center position on the surface of the top end of the limiting post.

[0012] Preferably, the cross - section of the cross - beam is a "U" - shaped structure, and a square limiting hole for the clamping post to penetrate through is provided at the center position of the cross - beam.

[0013] Preferably, rectangular through - holes for the limiting block to penetrate through are provided at the positions on both sides of the limiting hole on the cross - beam.

[0014] Preferably, a first circular groove for the limiting block to rotate is provided at the center position on the top surface of the compression round block, and a second circular groove for the compression spring to be embedded is provided at the center position on the bottom surface of the compression round block.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, there is a design for convenient assembly of the lower track during installation and replacement of damaged parts. The guide rail plate is assembled inside the limit plate. The clamping post penetrates through the limit plate and the cross - beam, and the clamping post is restricted, enabling the detachable guide rail plate to be accurately assembled inside the limit plate. The limiting post limits the guide rail plate, and the limiting block is restricted by the cross - beam, facilitating the disassembly and assembly of the guide rail plate and allowing the damaged guide rail plate to be detached and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a top - view structural diagram of the bottom plate of the present utility model;

[0019] Figure 3 is of the present utility model Figure 1 partial enlarged structural diagram at part A;

[0020] Figure 4It is a top view structural schematic diagram of the guide rail plate of the present utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the limiting column of the present utility model;

[0022] In the figure: 3, limit plate; 4, guide rail plate; 5, limiting column; 11, bottom plate; 12, cross beam; 21, anti-deviation column; 22, compression spring; 23, compression round block; 41, fixed guide rail; 42, rubber round piece; 43, flip cover; 44, clamping column; 51, limit block; 111, support rod; 121, limiting hole; 122, through hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a lower track structure of an aircraft hangar door, including a support steel frame, including a bottom plate 11 installed in a reserved track groove B on the ground, support rods 111 installed on both sides of the surface of the bottom plate 11, and a cross beam 12 connected to the support rods 111 at both ends. The bottom plate 11 and the support rods 111 are combined by conventional methods, and the cross beam 12 and the support rods 111 are combined by conventional methods. The support steel frame supports the guide rail plate 4; a butt joint assembly, including an anti-deviation column 21 vertically installed on the bottom plate 11, a compression spring 22 sleeved on the outside of the anti-deviation column 21 at the bottom end, and a compression round block 23 connected to the top end of the compression spring 22. The anti-deviation column 21 and the bottom plate 11 are combined by conventional methods. The anti-deviation column 21 plays a role in limiting the position of the compression spring 22, and the compression round block 23 abuts against the cross beam 12; a guide rail assembly, including a limit plate 3 attached to the ground, a guide rail plate 4 assembled separately from the limit plate 3, a fixed guide rail 41 installed at the center position of the inner surface of the guide rail plate 4, a clamping column 44 installed on the bottom surface of the guide rail plate 4, and a limiting column 5 penetrating the limit plate 3 and the guide rail plate 4. A limit block 51 is provided at the bottom end of the limiting column 5. The limit plate 3 is placed at the position of the reserved track groove B on the ground, the guide rail plate 4 is assembled inside the limit plate 3, the clamping column 44 penetrates the limit plate 3 and the cross beam 12, and the clamping column 44 is restricted, so that the separately assembled guide rail plate 4 is accurately assembled inside the limit plate 3. After the limiting column 5 penetrates the limit plate 3, the guide rail plate 4 and the cross beam 12, the limit block 51 is limited by the cross beam 12, and the limiting column 5 limits the guide rail plate 4.

[0026] In this embodiment, a rubber disc 42 is attached to the surface of the guide rail plate 4. The rubber disc 42 increases the friction and damping performance, making the installation of the limiting column 5 stable. Rectangular through holes are provided on the guide rail plate 4 and the rubber disc 42, and the limiting block 51 is matched with the through holes, which is beneficial to the penetration of the limiting block 51 and the limiting column 5.

[0027] In this embodiment, a flip cover 43 is hinged to the position of the guide rail plate 4 close to the rubber disc 42. An observation port covered by the flip cover 43 is provided on the guide rail plate 4. By opening the flip cover 43, the position of the limiting block 51 can be observed through the observation port.

[0028] In this embodiment, the limiting column 5 is perpendicular to the limiting block 51. The top end of the limiting column 5 is of a "T" - shaped structure, and a square groove is provided at the center position of the surface of the top end of the limiting column 5. One end of a wrench is inserted into the square groove on the limiting column 5, and the limiting column 5 can be rotated.

[0029] In this embodiment, the cross - section of the cross - beam 12 is of a "U" - shaped structure. A square limiting hole 121 for the penetration of the clamping column 44 is provided at the center position of the cross - beam 12, which can realize the limitation of the clamping column 44. Rectangular through holes 122 for the penetration of the limiting block 51 are provided at the positions on both sides of the limiting hole 121 on the cross - beam 12. A first circular groove for the rotation of the limiting block 51 is provided at the center position of the top surface of the compression round block 23, which is beneficial to the rotation of the limiting block 51. Under the elastic force of the compression spring 22, the compression round block 23 presses against the limiting block 51 to prevent it from loosening significantly. A second circular groove for the embedding of the compression spring 22 is provided at the center position of the bottom surface of the compression round block 23, which can realize the limitation of the top end of the compression spring 22.

[0030] The working principle and usage process of the present utility model are as follows:

[0031] During the installation of the lower track, the bottom plate 11, the support rod 111, and the cross - beam 12 form a support steel frame by conventional methods, and the support steel frame is installed inside the rail groove B reserved on the ground;

[0032] The limiting plate 3 is placed at the position of the rail groove B reserved on the ground, the guide rail plate 4 is assembled inside the limiting plate 3, the clamping column 44 penetrates through the limiting plate 3 and the cross - beam 12, and the clamping column 44 is limited, so that the split - type guide rail plate 4 is accurately assembled inside the limiting plate 3;

[0033] After the limiting column 5 penetrates through the limiting plate 3, the guide rail plate 4 and the cross - beam 12, the limiting block 51 presses against the compression round block 23, and the compression round block 23 compresses the compression spring 22;

[0034] The limiting column 5 rotates by a certain angle. Under the elastic force of the compression spring 22, the compression round block 23 presses against the limiting block 51 to prevent it from loosening significantly. A second circular groove for the compression spring 22 to be embedded is provided at the center position of the bottom surface of the compression round block 23, which can limit the top end of the compression spring 22. The limiting block 51 is limited by the cross beam 12, and the limiting column 5 limits the guide rail plate 4, so that the assembled guide rail plate 4 can be assembled, which is convenient for disassembling and assembling the assembled guide rail plate 4, and the damaged guide rail plate 4 can be disassembled and replaced;

[0035] In summary: The lower track has a design that facilitates the assembly of the lower track and the replacement of damaged parts during installation. The guide rail plate 4 is assembled inside the limiting plate 3, and the clamping column 44 passes through the limiting plate 3 and the cross beam 12. The clamping column 44 is limited, so that the split guide rail plate 4 is accurately assembled inside the limiting plate 3. The limiting column 5 limits the guide rail plate 4, and the limiting block 51 is limited by the cross beam 12, which is convenient for disassembling and assembling the assembled guide rail plate 4, and the damaged guide rail plate 4 can be disassembled and replaced.

[0036] Although the embodiments of the present invention have been shown and described (see the above detailed description), those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lower track structure of a hangar door, characterized in that: include The supporting steel frame comprises a bottom plate (11) installed in a rail groove B reserved on the ground, support rods (111) installed on both sides of the bottom plate (11), and a crossbeam (12) with two ends respectively connected to the support rods (111); The abutment assembly comprises an anti-deflection column (21) vertically mounted on the bottom plate (11), a compression spring (22) with its bottom end sleeved on the outside of the anti-deflection column (21), and a compression round block (23) connected to the top end of the compression spring (22); The guide rail assembly comprises a limit plate (3) which is in contact with the ground, a guide rail plate (4) which is assembled in a split manner with the limit plate (3), a fixed guide rail (41) which is installed at the center position of the inner surface of the guide rail plate (4), a clamping column (44) which is installed on the bottom surface of the guide rail plate (4), and a limit column (5) which passes through the limit plate (3) and the guide rail plate (4), wherein a limit block (51) is provided at the bottom end of the limit column (5).

2. The lower track structure of a hangar door according to claim 1, characterized in that: A rubber disc (42) is mounted on the surface of the guide rail plate (4), and rectangular through holes are provided on the guide rail plate (4) and the rubber disc (42), and the limit block (51) cooperates with the through holes.

3. The lower track structure of a hangar door according to claim 2, characterized in that: A flip cover (43) is connected to the surface of the guide rail plate (4) at a position close to the rubber disc (42) via a hinge, and an observation port covered by the flip cover (43) is provided on the guide rail plate (4).

4. The lower track structure of a hangar door according to claim 1, characterized in that: The limiting column (5) is vertically connected to the limiting block (51); the top end of the limiting column (5) is a "T"-shaped structure; a square groove is provided at the center of the circle on the top end surface of the limiting column (5).

5. The lower track structure of a hangar door according to claim 1, characterized in that: The cross section of the cross beam (12) is a "U"-shaped structure, and a square limiting hole (121) for the clamping column (44) to pass through is provided at the center of the cross beam (12).

6. The lower track structure of a hangar door according to claim 5, characterized in that: Rectangular through holes (122) for the limit blocks (51) to pass through are provided on the crossbeam (12) at positions on both sides of the limiting hole (121).

7. The lower track structure of a hangar door according to claim 1, characterized in that: A first circular groove for the limit block (51) to rotate is provided at the center of the top surface of the compression circular block (23), and a second circular groove for the compression spring (22) to be embedded is provided at the center of the bottom surface of the compression circular block (23).

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