Folding hangar door

Abstract

The invention discloses a folding hangar door which is in an upward folding form and comprises at least two groups of rail supporting mechanisms, and a first door body, a second door body, a third door body and a fourth door body which are sequentially arranged between the rail supporting mechanisms from top to bottom and are connected through hinges. The driving mechanism is connected with the rail supporting mechanism and used for driving the first door body, the second door body, the third door body and the fourth door body to be opened or closed. According to the upward-folding hangar door, the upward-folding hangar door is folded backwards towards the interior of the hangar after the door plate is opened and lifted upwards to the door frame, the upward-folding hangar door is stored on the door frame along the inner side of the hangar after being opened, the occupied size in the depth direction of the hangar is about one fourth of the height of an opening of the hangar door, and the depth space in the hangar is saved. And the single door plate is of a box-shaped structure, so that the overall strength and rigidity can be considered, and meanwhile, the longitudinal storage space of the door body during opening is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hangar doors, and in particular to a folding hangar door. Background Art

[0002] The main function of the ship hangar door is to protect the equipment in the hangar from wind and waves and ensure the daily passage of equipment and personnel in the hangar. At present, the domestic field basically adopts the flat door form, which is composed of multiple door panels, has many hinge points, many seals, and is difficult to maintain. It is stored flat on the top of the cabin, and the space occupied is basically the same as the size of the door body. Because there are many door panels and not enough fulcrums, the overall elasticity is relatively large, and the overall shaking and noise are relatively large in windy weather.

[0003] In addition, the existing flat doors used in China are mainly composed of door panel assembly, pulley track, transmission shaft device, transmission unit, electrical control system, etc. The door panel assembly is generally formed by hinged narrow door panels with a width of about 300mm, and rubber seals are used between the door panels. Due to the large number of sealing positions, the sealing performance of wind and rain is generally not very good. When the door is open, it is stored flat at the top of the cabin, and the space occupied is basically the same as the height of the door body, which affects the operating space of other equipment on the top of the hangar. Summary of the invention

[0004] The object of the present invention is to solve one of the above-mentioned technical problems at least to a certain extent.

[0005] In order to solve the above problems, the present invention proposes a folding hangar door, specifically an upper folding hangar door, which is equipped with four door panels in total, which are connected by hinges and have a mounting groove for a sealing rubber strip in the middle. The door panel is opened and lifted upward to the upper edge of the door frame, and then folded toward the inside of the hangar. After opening, it is stored on the inner side of the hangar at the upper edge of the door frame. The size occupied in the depth direction of the hangar is about one-fourth of the height of the hangar door opening, saving the depth space in the hangar. In addition, the single door panel is a box-type structure, which can take into account the overall strength and rigidity, while reducing the longitudinal storage space of the door body when it is opened.

[0006] In order to achieve the above-mentioned object, an embodiment of the present invention provides a folding hangar door, wherein the folding hangar door is in an upward folding form; the folding hangar door comprises:

[0007] At least two sets of track support mechanisms, and

[0008] The first door body, the second door body, the third door body and the fourth door body are sequentially arranged between the track support mechanism from top to bottom, and the first door body, the second door body, the third door body and the fourth door body are all hinged by a connecting piece; HDP240124CN Page 2 / 9

[0009] A driving mechanism is connected to the track supporting mechanism and is used to drive the first door body, the second door body, the third door body and the fourth door body to open or close.

[0010] According to one embodiment of the present invention, the connecting member is a hinge.

[0011] According to one embodiment of the present invention, the track support mechanism comprises: a track mounting frame, a first side reinforcement bracket, a second side reinforcement bracket, a first track and a second track;

[0012] The track installation frame includes at least two, which are respectively connected to the two groups of track support mechanisms;

[0013] There are a plurality of first side reinforcement brackets, which are fixedly connected to the two track mounting frames in sequence; there are a plurality of second side reinforcement brackets, which are fixedly connected to the two track mounting frames in sequence and are located at the upper ends of the first side reinforcement brackets;

[0014] The first rail and the second rail are respectively connected to each rail mounting frame.

[0015] According to one embodiment of the present invention, the first track is a straight track, and the second track is a curved track.

[0016] According to one embodiment of the present invention, the track support mechanism further comprises: a door opening limit plate and a rubber seal;

[0017] The upper end notch of the door opening limit plate overlaps the first door panel, and the lower end notch of the door opening limit plate overlaps the third door panel; the rubber seal is installed between the door frame and the first door body, the second door body, the third door body and the fourth door body.

[0018] According to one embodiment of the present invention, the track mounting frame comprises: a sealing mounting plate;

[0019] The sealing mounting plate is arranged on the track mounting frame.

[0020] According to one embodiment of the present invention, the driving mechanism includes: a motor, a reducer, a transmission chain, a second lifting chain, and a transmission shaft mechanism;

[0021] The driving mechanism drives the reducer through the motor, and transmits the driving torque to the transmission shaft mechanism at the top of the hangar door through the transmission chain. The second lifting chain is connected to the lifting shaft at the bottom of the fourth door body, and the fourth door body is lifted by the second lifting chain to open or close the fourth door body.

[0022] According to one embodiment of the present invention, the transmission shaft mechanism comprises: a transmission shaft, a driving sprocket, a lifting sprocket and a seat bearing;

[0023] The driving sprocket is installed on the outer side of the transmission shaft and is connected to the output shaft of the reducer through a chain to transmit the output torque of the reducer to the transmission shaft. The transmission shaft transmits the torque to the lifting sprockets on the left and right sides respectively. The lifting sprocket is connected to the driven sprocket at the bottom through a chain. A lifting assembly is installed on the side of the lifting sprocket, and the lifting assembly is connected to the roller shaft at the bottom of the fourth door body.

[0024] According to one embodiment of the present invention, the first door body comprises: a first sealing baffle, a first top roller, a first middle roller and a first T-slot transition plate;

[0025] HDP240124CNPage 3 / 9

[0026] The first sealing baffle is installed at the bottom of the first door body and is sealed with the door body at the top of the second door body, the first top roller runs in the first track, the first middle roller runs in the second track, and the first middle roller includes: a first middle roller mounting frame, and the first T-slot transition plate is arranged between the first middle roller mounting frame and the door body;

[0027] The second door body comprises: a second sealing baffle and a roller shaft seat;

[0028] The second sealing baffle is installed at the bottom of the second door body and is sealed with the door body at the top of the third door body; the roller shaft seat is installed at at least one end of the second sealing baffle;

[0029] The third door body comprises: a third sealing baffle, a third top roller, a third middle roller and a third T-slot transition plate;

[0030] The third sealing baffle is installed at the bottom of the third door body and is sealed with the door body at the top of the fourth door body. The third top roller runs in the first track, and the third intermediate roller runs in the second track. The third intermediate roller includes: a third intermediate roller mounting frame, and the third T-slot transition plate is arranged between the third intermediate roller mounting frame and the door body;

[0031] The fourth door body comprises: a bottom seal, a first lifting chain and a fourth bottom roller;

[0032] The bottom seal is arranged at the bottom of the fourth door body, a lifting assembly is installed on the side of the first lifting chain, and the lifting assembly is connected to the fourth bottom roller.

[0033] According to one embodiment of the present invention, it further includes: an electric control mechanism; the electric control mechanism is connected to the track support mechanism and is located at the upper end of the driving mechanism.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.

[0035] Compared with the prior art, the beneficial effects of the embodiments of the present application are:

[0036] The present invention provides a folding hangar door, specifically an upper folding hangar door, which is equipped with four door panels in total, which are connected by hinges and have installation grooves for sealing rubber strips in the middle. The door panel is opened and lifted upward to the upper edge of the door frame, and then folded toward the inside of the hangar. After opening, it is stored on the inner side of the hangar at the upper edge of the door frame. The size occupied in the depth direction of the hangar is about one-fourth of the height of the hangar door opening, saving the depth space in the hangar. In addition, the single door panel is a box-type structure, which can take into account the overall strength and rigidity, while reducing the longitudinal storage space of the door body when it is opened.

[0037] The present invention provides a folding hangar door, wherein a plurality of first side reinforcement brackets and second side reinforcement brackets are arranged in order to increase the lateral rigidity of a track support mechanism.

[0038] The present invention provides a folding hangar door. By making a first top roller, a third top roller and a fourth bottom roller run in a straight track and making a first middle roller and a third middle roller run in the curved track, a door body can be folded during opening, and the pulleys at both ends of the hangar door panel need to move according to a specific track.

[0039] The present invention provides a folding hangar door, in which a first T-slot transition plate is arranged between a door body structure and a first intermediate roller mounting frame to ensure that a first door body and a third door body can be lifted and folded according to a preset trajectory. It is necessary to adjust the relative position size between a first top roller and a first intermediate roller of the first door body to achieve the relative position size between the first top roller and the first intermediate roller.

[0040] In order to more clearly understand the technical means of the present invention, which can be implemented according to the contents of the specification, and to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. Other features and advantages of the present invention will be explained in the subsequent description, and part of them will become obvious from the description, or be reflected by implementing the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1A is a schematic diagram of the structure of a folding hangar door provided according to an embodiment of the present invention;

[0043] Figure 1B is another structural schematic diagram of a folding hangar door provided according to an embodiment of the present invention;

[0044] Figure 2 is a schematic diagram of a closed state of a folding hangar door provided according to an embodiment of the present invention;

[0045] Figure 3 is a schematic diagram of an open state of a folding hangar door provided according to an embodiment of the present invention;

[0046] Figure 4A is a structural schematic diagram of a track support mechanism provided according to an embodiment of the present invention;

[0047] Figure 4B is another structural schematic diagram of a track support mechanism provided according to an embodiment of the present invention;

[0048] Figure 4C is another structural schematic diagram of a track support mechanism provided according to an embodiment of the present invention;

[0049] Figure 5 is a schematic structural diagram of a first track provided according to an embodiment of the present invention;

[0050] Figure 6 is a schematic structural diagram of a second track provided according to an embodiment of the present invention;

[0051] Figure 7 is a schematic structural diagram of a door opening stop plate provided according to an embodiment of the present invention;

[0052] Figure 8 is a schematic structural diagram of a first door body provided according to an embodiment of the present invention;

[0053] Fig. 9 is a schematic structural diagram of a second door body provided according to an embodiment of the present invention;

[0054] Fig.10 is a schematic structural diagram of a third door body provided according to an embodiment of the present invention;

[0055] Fig.11 is a schematic structural diagram of a fourth door body provided according to an embodiment of the present invention;

[0056] HDP240124CNPage 5 / 9

[0057] Fig.12 is a schematic structural diagram of a first top roller and a first middle roller provided according to an embodiment of the present invention;

[0058] Fig.13 is a schematic structural diagram of a third top roller and a third middle roller provided according to an embodiment of the present invention;

[0059] Fig.14A is a schematic structural diagram of a driving mechanism provided according to an embodiment of the present invention;

[0060] Fig. 14B is another structural schematic diagram of a driving mechanism provided according to an embodiment of the present invention;

[0061] Fig.15 is a structural schematic diagram of a transmission shaft mechanism provided according to an embodiment of the present invention;

[0062] Reference numerals:

[0063] 1-Track support mechanism;

[0064] 11-track mounting frame; 111-sealed mounting plate; 12-first side reinforcement bracket; 13-second side reinforcement bracket; 14-first track; 15-second track; 16-door opening limit plate; 17-rubber seal;

[0065] 2-first door body; 21-first sealing baffle; 22-first top roller; 23-first middle roller; 231-first middle roller mounting frame; 24-first T-slot transition plate;

[0066] 3-second door body; 31-second sealing baffle; 32-roller shaft seat;

[0067] 4-third door body; 41-third sealing baffle; 42-third top roller; 43-third middle roller; 431-third middle roller mounting frame; 44-third T-slot transition plate;

[0068] 5-fourth door body; 51-bottom seal; 52-fourth bottom roller; 53-first lifting chain;

[0069] 6-driving mechanism; 61-motor; 62-reducer; 63-transmission chain; 64-second lifting chain; 65-transmission shaft mechanism; 651-transmission shaft; 652-driving sprocket; 653-lifting sprocket; 654-seat bearing;

[0070] 7-Electronic control mechanism. DETAILED DESCRIPTION

[0071] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention. To this end, the present invention provides a folding hangar door.

[0072] Specifically, a folding hangar door according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0073] Please refer to Figure 1A-Figure 15 The present embodiment provides a folding hangar door, wherein the folding hangar door is in an upward folding form; it comprises:

[0074] At least two sets of track support mechanisms 1, and

[0075] A first door body 2, a second door body 3, a third door body 4 and a fourth door body 5 are sequentially arranged between the track support mechanism 1 from top to bottom, and the first door body 2, the second door body 3, the third door body 4 and the fourth door body 5 are all hinged by a connecting piece;

[0076] HDP240124CNPage 6 / 9

[0077] A driving mechanism 6 , which is connected to the track supporting mechanism 1 , and is used to drive the first door body 2 , the second door body 3 , the third door body 4 and the fourth door body 5 to open or close.

[0078] A folding hangar door provided in an embodiment of the present invention is specifically an upper folding hangar door, which is equipped with four door panels in total, which are connected by hinges, and a mounting groove for a sealing rubber strip is set in the middle. The door panel is opened and lifted upward to the upper edge of the door frame, and then folded toward the inside of the hangar. After opening, it is stored on the inner side of the hangar at the upper edge of the door frame. The size occupied in the depth direction of the hangar is about one-fourth of the height of the hangar door opening, saving the depth space in the hangar. In addition, the single door panel is a box-type structure, which can take into account the overall strength and rigidity, while reducing the longitudinal storage space of the door body when it is opened.

[0079] In one embodiment of the present invention, the connecting member is a hinge.

[0080] In one embodiment of the present invention, the track support mechanism 1 comprises: a track mounting frame 11, a first side reinforcement bracket 12, a second side reinforcement bracket 13, a first track 14 and a second track 15;

[0081] The track installation frame 11 includes at least two rails, that is, a double-track form, which are respectively connected to the two groups of the track support mechanisms 1, and are specifically arranged on the inner side of the track support mechanisms 1;

[0082] There are multiple first side reinforcement brackets 12, which are fixedly connected to the two track mounting frames 11 in sequence; there are multiple second side reinforcement brackets 13, which are fixedly connected to the two track mounting frames 11 in sequence and are located at the upper ends of the first side reinforcement brackets 12;

[0083] It can be understood that the purpose of arranging a plurality of first side reinforcement brackets 12 and second side reinforcement brackets 13 is to increase the lateral rigidity of the track support mechanism 1 .

[0084] The first rail 14 and the second rail 15 are respectively connected to each of the rail mounting frames 11 .

[0085] In one embodiment of the present invention, the first track 14 is a straight track, and the second track 15 is a curved track.

[0086] It should be noted that the tracks of the hangar door (the first track 14 and the second track 15) must not only provide specific running track constraints for the pulleys, but also provide strong support for the door panels when the door panels are stored. Round steel is provided on the first track 14 (straight track) on the left side, which is used in conjunction with the limit pulleys on the side of the door panels to provide lateral movement constraints for the door panels.

[0087] In one embodiment of the present invention, the track support mechanism 1 further comprises: a door opening stop plate 16 and a rubber seal 17;

[0088] The upper end notch of the door opening limit plate 16 overlaps the first door panel 2, and the lower end notch of the door opening limit plate 16 overlaps the third door panel 4; the rubber seal 17 is installed between the door frame and the first door body 2, the second door body 3, the third door body 4 and the fourth door body 5.

[0089] HDP240124CNPage 7 / 9

[0090] Specifically, when the hangar door is open, the upper notch of the door opening limit plate 16 can overlap with the roller limit block of the first door body 2 to prevent the top roller of the first door body 2 from sliding down; the lower notch of the door opening limit plate 16 can overlap with the roller limit block of the third door body 4 to prevent the top roller of the third door body 4 from sliding down.

[0091] In one embodiment of the present invention, the track mounting frame 11 comprises: a sealing mounting plate 111 (not shown in the figure);

[0092] The sealing mounting plate 111 is disposed on the track mounting frame 11 .

[0093] In one embodiment of the present invention, the driving mechanism 6 includes: a motor 61, a reducer 62, a transmission chain 63, a second lifting chain 64, and a transmission shaft mechanism 65;

[0094] The driving mechanism 6 drives the reducer 62 through the motor 61, and transmits the driving torque to the transmission shaft mechanism 65 at the top of the hangar door through the transmission chain 63. The second lifting chain 64 is connected to the lifting shaft at the bottom of the fourth door body 5. The fourth door body 5 is lifted by the second lifting chain 64 to open or close the fourth door body 5.

[0095] In one embodiment of the present invention, the transmission shaft mechanism 65 includes: a transmission shaft 651, a driving sprocket 652, a lifting sprocket 653 and a seat bearing 654;

[0096] The driving sprocket 652 is installed on the outer side of the transmission shaft 651, and is connected to the output shaft of the reducer 62 through a chain, so that the output torque of the reducer 62 is transmitted to the transmission shaft 651. The transmission shaft 651 transmits the torque to the lifting sprockets 653 on the left and right sides respectively. The lifting sprocket 653 is connected to the driven sprocket at the bottom through a chain. A lifting assembly is installed on the side of the lifting sprocket 653, and the lifting assembly is connected to the bottom roller shaft of the fourth door body 5, so as to transmit the lifting force to the door body and realize the action of lifting the door body.

[0097] In one embodiment of the present invention, the first door body 2 comprises: a first sealing baffle 21, a first top roller 22, a first middle roller 23 and a first T-slot transition plate 24;

[0098] The first sealing baffle 21 is installed at the bottom of the first door body 2, and cooperates with the door body seal at the top of the second door body 3 to compress the seal to achieve sealing. The first top roller 22 runs in the first track 14, and the first intermediate roller 23 runs in the second track 15. The first intermediate roller 23 includes: a first intermediate roller mounting frame 231, and the first T-slot transition plate 24 is arranged between the first intermediate roller mounting frame 231 and the door body;

[0099] It can be understood that in order to ensure that the first door body 2 and the third door body 4 can be lifted and folded according to the preset trajectory, it is necessary to adjust the relative position size between the first top roller 22 and the first middle roller 23 of the first door body 2, and a first T-slot transition plate 24 is arranged between the door body structure and the first middle roller mounting frame 231 to realize the relative position size between the first top roller 22 and the first middle roller 23.

[0100] HDP240124CNPage 8 / 9

[0101] It should be noted that the first top roller 22, the third top roller 42 and the fourth bottom roller 52 run in the straight track (first track 14), and the first middle roller 23 and the third middle roller 43 run in the curved track (second track 15).

[0102] Through the above, the door body can be folded during the opening process, so that the pulleys at both ends of the hangar door panel need to move along a specific track.

[0103] The second door body 3 includes: a second sealing baffle 31 and a roller shaft seat 32;

[0104] The second sealing baffle 31 is installed at the bottom of the second door body 3, and cooperates with the door body seal at the top of the third door body 4 to compress the seal to achieve sealing; the roller shaft seat 32 is installed at least one end of the second sealing baffle 31;

[0105] The third door body 4 includes: a third sealing baffle 41, a third top roller 42, a third middle roller 43 and a third T-slot transition plate 44;

[0106] The third sealing baffle 41 is installed at the bottom of the third door body 4, and cooperates with the door body seal at the top of the fourth door body 5 to compress the seal to achieve sealing. The third top roller 42 runs in the first track 14, and the third intermediate roller 43 runs in the second track 15. The third intermediate roller 43 includes: a third intermediate roller mounting frame 431, and the third T-slot transition plate 44 is arranged between the third intermediate roller mounting frame 431 and the door body;

[0107] Similarly, the purpose of providing the third T-slot transition plate 44 is the same as the purpose of providing the first T-slot transition plate 24, which will not be described in detail here.

[0108] The fourth door body 5 includes: a bottom seal 51, a first lifting chain 53 and a fourth bottom roller 52;

[0109] The bottom seal 51 is arranged at the bottom of the fourth door body 5 and is used to install the door body bottom seal. When the hangar door is closed, the door body bottom seal contacts the ground (deck surface) to compress the door body bottom seal to achieve sealing. A lifting component is installed on the side of the first lifting chain 53, and the lifting component is connected to the fourth bottom roller 52.

[0110] It should be noted that the bottom seal of the door body adopts a hollow section form, and there are three ribs at the bottom in contact with the ground (deck surface) to achieve multi-layer sealing.

[0111] In one embodiment of the present invention, it further includes: an electric control mechanism 7 ; the electric control mechanism 7 is connected to the track support mechanism 1 and is located at the upper end of the driving mechanism 6 .

[0112] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0114] The orientation or position relationship shown, or the orientation or position relationship in which the invention product is usually placed when in use, is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0115] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0116] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0117] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the disclosure scope involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) by each other.

[0118] In addition, although each operation is described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present invention. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0119] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A folding hangar door, characterized in that: The folding hangar door is in an upward folding form; It includes: At least two sets of track support mechanisms, and A first door body, a second door body, a third door body and a fourth door body are sequentially arranged between the track support mechanism from top to bottom, and the first door body, the second door body, the third door body and the fourth door body are all hinged by a connecting piece; A driving mechanism is connected to the track supporting mechanism and is used to drive the first door body, the second door body, the third door body and the fourth door body to open or close.

2. The folding hangar door according to claim 1, characterized in that: The connecting piece is a hinge.

3. The folding hangar door according to claim 1, characterized in that: The track support mechanism comprises: a track installation frame, a first side reinforcement bracket, a second side reinforcement bracket, a first track and a second track; The track installation frame includes at least two, which are respectively connected to the two groups of track support mechanisms; There are a plurality of first side reinforcement brackets, which are fixedly connected to the two track mounting frames in sequence; there are a plurality of second side reinforcement brackets, which are fixedly connected to the two track mounting frames in sequence and are located at the upper ends of the first side reinforcement brackets; The first rail and the second rail are respectively connected to each rail mounting frame.

4. The folding hangar door according to claim 3, characterized in that: The first track is a straight track, and the second track is a curved track.

5. The folding hangar door according to claim 3, characterized in that: The track support mechanism also includes: a door opening limit plate and a rubber seal; The upper end notch of the door opening limit plate overlaps the first door panel, and the lower end notch of the door opening limit plate overlaps the third door panel; the rubber seal is installed between the door frame and the first door body, the second door body, the third door body and the fourth door body.

6. The folding hangar door according to claim 5, characterized in that: The track mounting frame comprises: a sealing mounting plate; The sealing mounting plate is arranged on the track mounting frame.

7. The folding hangar door according to claim 1, characterized in that: The driving mechanism includes: a motor, a reducer, a transmission chain, a second lifting chain, and a transmission shaft mechanism; The driving mechanism drives the reducer through the motor, and transmits the driving torque to the transmission shaft mechanism at the top of the hangar door through the transmission chain. The second lifting chain is connected to the lifting shaft at the bottom of the fourth door body, and the fourth door body is lifted by the second lifting chain to open or close the fourth door body.

8. The folding hangar door according to claim 7, characterized in that: The transmission shaft mechanism comprises: a transmission shaft, a driving sprocket, a lifting sprocket and a seat bearing; The driving sprocket is installed on the outer side of the transmission shaft and is connected to the output shaft of the reducer through a chain to transmit the output torque of the reducer to the transmission shaft. The transmission shaft transmits the torque to the lifting sprockets on the left and right sides respectively. The lifting sprocket is connected to the driven sprocket at the bottom through a chain. A lifting assembly is installed on the side of the lifting sprocket, and the lifting assembly is connected to the roller shaft at the bottom of the fourth door body.

9. The folding hangar door according to claim 8, characterized in that: The first door body comprises: a first sealing baffle, a first top roller, a first middle roller and a first T-slot transition plate; The first sealing baffle is installed at the bottom of the first door body and is sealed with the door body at the top of the second door body, the first top roller runs in the first track, the first middle roller runs in the second track, and the first middle roller includes: a first middle roller mounting frame, and the first T-slot transition plate is arranged between the first middle roller mounting frame and the door body; The second door body comprises: a second sealing baffle and a roller shaft seat; The second sealing baffle is installed at the bottom of the second door body and is sealed with the door body at the top of the third door body; the roller shaft seat is installed at at least one end of the second sealing baffle; The third door body comprises: a third sealing baffle, a third top roller, a third middle roller and a third T-slot transition plate; The third sealing baffle is installed at the bottom of the third door body and is sealed with the door body at the top of the fourth door body. The third top roller runs in the first track, and the third intermediate roller runs in the second track. The third intermediate roller includes: a third intermediate roller mounting frame, and the third T-slot transition plate is arranged between the third intermediate roller mounting frame and the door body; The fourth door body comprises: a bottom seal, a first lifting chain and a fourth bottom roller; The bottom seal is arranged at the bottom of the fourth door body, a lifting assembly is installed on the side of the first lifting chain, and the lifting assembly is connected to the fourth bottom roller.

10. The folding hangar door according to claim 1, characterized in that: Also includes: Electric control mechanism; The electric control mechanism is connected to the track support mechanism and is located at the upper end of the driving mechanism.

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