Sealed sliding door and vehicle

Abstract

The present invention relates to a sealed sliding door, comprising: a door body, which includes opposite first and second sides and can be fitted into an opening of a partition member to close the opening; a seal, which is disposed around the periphery of the door body on the side of the door body facing the partition member; and a slide rail, which carries the door body and is used to guide the door body to move between an open position and a closed position. Wherein, the slide rail includes a first guide rail and a second guide rail. The first guide rail is provided with a first step portion, and the second guide rail is provided with a second step portion. Moreover, the first step portion and the second step portion are configured such that the first side and the second side of the door body are displaced non-synchronously in the normal direction relative to the partition member. This sealed sliding door has strong designability, can avoid wear of the seal, and at the same time ensure the sealing effect. It can not only save space on the carrier, but also have the characteristics of good sealing effect of a rotary door body. In addition, the present invention also relates to a carrier including such a sealed sliding door.

Description

Technical Field

[0001] The present invention belongs to the field of integrated design of the body structure functions of vehicles such as aircraft, mainly relates to a sealed sliding door, and more specifically relates to a sealed sliding door structure designed with double sliding rails (such as channel sliding rails), which can be used for the design of channel doors with sealing requirements (such as anti-smoke penetration requirements, etc.) between adjacent cabins inside the vehicle. Background Art

[0002] Due to different usage requirements and environments, the interior of a cabin (such as a fuselage pressurized cabin) of a vehicle such as an aircraft is physically separated into multiple relatively independent cabin spaces. For example, the cockpit, passenger cabin, and lower cargo hold of a passenger aircraft, the cockpit, escort cabin, main cargo hold, and lower cargo hold of a cargo aircraft, etc. Due to functional differences between cabins, there may be a design requirement to prevent smoke from moving between cabins. Therefore, at this time, a channel door with the ability to prevent smoke penetration needs to be installed between cabins. Considering the space limitations on the vehicle, especially the very tight space resources on an aircraft for example, conventional doors may not be able to meet all usage scenario requirements.

[0003] Existing door design solutions generally can include the following methods:

[0004] a) As Figure 1 and 2 schematically shown, the hinge (pivot) type door design. This kind of door belongs to the design of an ordinary internal partition cabin door, connecting the door body 10 to the partition member 200 / wall body at the opening edge through a hinge (or pivot) 300, with the seal 20 installed around the door body 10. The door body 10 can rotate around the pivot axis of the hinge (or pivot) 300 to achieve the opening, closing / sealing functions of the door body 10.

[0005] b) As Figure 3 、 Figure 4 and Figure 5 schematically shown, the single-channel sliding rail type sliding door design. This kind of sliding door realizes the sliding of the door body 10 through a single-channel sliding rail, with the seal 20 installed around the door body 10. During the sliding process of the door body 10, the compression amount between the seal 20 and the partition member / wall body 200 remains unchanged. When the door body 10 slides to the closed position, the seal 201 seals with the opening 201 / aisle perimeter through extrusion.

[0006] Regarding installing a channel door with the ability to prevent smoke penetration between the internal cabins of a vehicle such as an aircraft, there are some technical points worthy of improvement in the existing technical solutions.

[0007] For example, for the above combination with Figure 1 and 2The described Solution A (i.e., the hinge-type door design) is not conducive to the layout of the cabin space. For areas with limited space, adopting this solution will result in excessive occupation of effective space. For the combination Figure 3 , Figure 4 and Figure 5 The described Solution B (i.e., the single-groove slide rail type sliding door design) may be difficult to achieve the desired sealing effect. If good sealing needs to be achieved, it is necessary to keep the seal 20 in a compressed state between the partition member 200 / wall. At this time, during the movement of the door body 10, the seal 20 is subjected to tangential friction, resulting in a shorter service life of the seal 20, and it is even possible that the seal 20 is "rubbed" out of the seal installation slot during the movement of the door body 10.

[0008] Therefore, there is an urgent need to optimize the structure of the sealed sliding door in order to provide an improved sealed sliding door that can overcome one or more drawbacks existing in the prior art. Summary of the Invention

[0009] The object of the present invention is to provide a technical solution of a sealed sliding door structure with a double-slide rail design that has excellent sealing performance, the compression ratio of the seal can be adjusted as required, the structure is easy to implement, and is convenient for disassembly, based on the prior art and in combination with the design requirements of carriers such as airplanes.

[0010] According to one aspect of the present invention, a sealed sliding door is proposed, which may include:

[0011] A door body, the door body may include opposite first and second sides and be capable of fitting into an opening of a partition member to close the opening;

[0012] A seal, the seal may be disposed around the periphery of the door body on the side of the door body facing the partition member; and

[0013] Slide rails, the slide rails may carry the door body and be used to guide the door body to move between an open position and a closed position,

[0014] wherein the slide rails may include a first guide rail and a second guide rail, the first guide rail is provided with a first step portion, and the second guide rail is provided with a second step portion, and

[0015] wherein the first step portion and the second step portion may be configured such that the first and second sides of the door body are displaced non-synchronously in the normal direction relative to the partition member.

[0016] This kind of sealed sliding door has strong designability, can avoid wear of the seal, and ensure the sealing effect at the same time. It can not only save space on the carrier, but also has the good sealing effect of the rotary door body. In addition, by realizing asynchronous or non-synchronous deflection of the door body, there is no need for the (non-metallic) seal to be in a squeezed state with the wall all the time. At the same time, during the movement process, adverse effects such as the short service life of the seal due to long-term tangential friction and even being scratched out of the installation groove are avoided.

[0017] According to the above aspect of the present invention, preferably, it may further include a guide wheel assembly fixed to the door body. The guide wheel assembly may include a first guide wheel cooperating with a first guide rail and a second guide wheel cooperating with a second guide rail. Among them, the first guide wheel and the second guide wheel are arranged at intervals in the sliding direction of the door body.

[0018] In this way, the spaced guide wheels can more stably support the door body and reduce the friction when the door body slides to close / close and open.

[0019] According to the above aspect of the present invention, preferably, the sealed sliding door may further include a normal direction adjusting device. The normal direction adjusting device is fixed to the door body and is used to adjust the initial distance between the door body and the partition member in the normal direction.

[0020] Through this normal direction adjusting device, on the one hand, the adjustable function of the compression pre-tightening force of the sliding door can be realized to meet the sealing level requirements between the cabins of the carrier; on the other hand, the sustainable adjustment ability of the sliding door can be realized during maintenance and repair, that is, when the compression rate index of the seal decreases, compensation can be made through this design without immediately replacing components such as seals.

[0021] According to the above aspect of the present invention, preferably, the guide wheel assembly can be fixed to the door body via a fixing bracket. Among them, the fixing bracket includes a protrusion extending from the door body in the normal direction. The protrusion is provided with an oblong hole extending in the normal direction. The guide wheel assembly is fixed to the fixing bracket via a fastener cooperating with the oblong hole. Through this oblong hole design, an easily implemented normal direction adjusting device is realized, which reduces the manufacturing, installation and maintenance costs and has high reliability.

[0022] According to the above aspect of the present invention, preferably, the first guide rail and the second guide rail can be arranged parallel to each other, and in the sliding direction, the first distance between the first step portion and the second step portion can be greater than the second distance between the first guide wheel and the second guide wheel.

[0023] In this way, it can be ensured that when the sliding door is closed, one side of the sliding door (for example, the first side) first moves towards the partition member and contacts the partition member, and then the other side moves towards the partition member and contacts the partition member, so as to achieve a fan-shaped door closing action (or instantaneous deflection), and press the seal. In this way, while protecting the seal from wear and damage, the sealing effect is ensured.

[0024] According to the above aspect of the present invention, preferably, the first guide rail can be arranged between the second guide rail and the partition member, and wherein, the first step portion is arranged behind the second step portion in the closing direction.

[0025] With this arrangement, the first side (or the rear side / or the open side) of the door body can first contact the partition member, and a desired gap can be maintained between the second side (or the closed side) of the door and the partition member, so as to form an opening with a predetermined angle towards the second side between the mutually facing surfaces of the door body and the partition member. In this way, as the sliding door continues to slide and close, a fan-shaped door closing action is formed by means of the second step portion, and the seal is pressed between the door body and the partition member, so that wear or rubbing of the seal can be reduced, and the service life of the seal is prolonged.

[0026] According to the above aspect of the present invention, preferably, the first guide rail can include a first guide rail section and a second guide rail section connected via the first step portion, and the second guide rail can include a third guide rail section and a fourth guide rail section connected via the second step portion, wherein, when the first guide wheel is in the second guide rail section and the second guide wheel is in the fourth guide rail section, there is a gap between the seal and the partition member, and when the first guide wheel is in the first guide rail section and the second guide wheel is in the third guide rail section, the seal is compressed between the door body and the partition member.

[0027] This arrangement allows the (non-metallic) seal to not always be in a squeezed state between the partition member or the wall body, and at the same time, during the movement of the door body, adverse effects such as the short service life of the seal caused by long-term tangential friction and even the seal being scratched out of the installation groove are avoided.

[0028] According to the above aspect of the present invention, preferably, the first step portion and the second step portion each form a smooth arc transition portion. In this way, on the one hand, it is convenient for the processing and manufacturing of the slide rail, and it is easy to push and pull to close or open.

[0029] According to the above aspect of the present invention, preferably, the door body can include a seal slot arranged around the periphery of the door body, and the seal can be at least partially arranged in the seal slot and protrude from the seal slot to form a flat sealing surface facing the partition member.

[0030] This setting can, on the one hand, facilitate the installation, positioning and replacement of the seal, and on the other hand, can improve the sealing effect between the door body and the partition member.

[0031] According to the above aspects of the present invention, preferably, slide rails can be provided at both the upper and lower parts of the door body. Thus, the movement track of the door body can be ensured from the upper and lower ends, and the sealing effect when the door body is closed can be ensured, without the need for additional sealing retention or locking devices.

[0032] According to another aspect of the present invention, a carrier is proposed, which includes a sealed sliding door according to the above aspects, and the sealed sliding door cooperates with a partition member to selectively connect or seal and isolate adjacent cabins of the carrier.

[0033] In summary, the sealed sliding door according to the present invention allows for the realization of a sealed sliding door structure solution with excellent sealing performance, adjustable seal compression ratio as required, easy-to-implement structure, and convenient disassembly.

[0034] Therefore, the sealed sliding door according to the present invention can meet the usage requirements, overcome the disadvantages of the prior art, and achieve the predetermined invention purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to further clearly describe the sealed sliding door according to the present invention, the present invention will be described in detail below in conjunction with the drawings and specific embodiments. In the drawings:

[0036] Figure 1 A schematic diagram of a sealed door with hinges or pivots in the prior art is shown, where the sealed door is in the closed state;

[0037] Figure 2 A schematic diagram of a sealed door with hinges or pivots in the prior art is shown, where the sealed door is in the open state;

[0038] Figure 3 A schematic diagram of a sealed sliding door with a slide rail in the prior art is shown;

[0039] Figure 4 is Figure 3 An enlarged view of the bottom of the sealed sliding door shown, showing the sealed sliding door in the closed state;

[0040] Figure 5 is Figure 3 Another enlarged view of the bottom of the sealed sliding door shown, showing the sealed sliding door in the open state;

[0041] Figure 6 A schematic diagram of a sealed sliding door according to a non-limiting embodiment of the present invention is shown, where the sealed sliding door is in the closed state;

[0042] Figure 7 is Figure 6 An enlarged view of the bottom of the sealed sliding door shown;

[0043] Figure 8 is a schematic diagram of an exemplary slide rail structure of a sealed sliding door according to a non - restrictive embodiment of the present invention; and

[0044] Figure 9 is a schematic diagram when one side of the sealed sliding door is closed according to a non - restrictive embodiment of the present invention; and

[0045] Figure 10 shows an embodiment of a normal adjustment device of a sealed sliding door according to a non - restrictive embodiment of the present invention.

[0046] The above - mentioned drawings are merely schematic and are not drawn strictly to scale.

[0047] List of reference numerals in the drawings and embodiments:

[0048] 100 - sealed sliding door, including:

[0049] 10 - door body, including:

[0050] 11 - first side;

[0051] 12 - second side;

[0052] 20 - seal;

[0053] 30 - slide rail;

[0054] 31 - first guide rail, including:

[0055] 31a - first step - difference part;

[0056] 311 - first guide rail section;

[0057] 312 - second guide rail section;

[0058] 32 - second guide rail, including:

[0059] 32a - second step - difference part;

[0060] 321 - third guide rail section;

[0061] 322 - fourth guide rail section;

[0062] 40 - guide wheel assembly, including:

[0063] 41 - first guide wheel;

[0064] 42 - second guide wheel;

[0065] 50 - fixed bracket, including:

[0066] 51 - first bracket;

[0067] 52 - Second bracket, including:

[0068] 521 - Protrusion, including:

[0069] 521a - Elongated circular hole;

[0070] 200 - Partition member, including:

[0071] 201 - Opening;

[0072] 300 - Hinge;

[0073] 400 - Coordinate system;

[0074] L1 - First distance;

[0075] L2 - Second distance;

[0076] S - Sliding direction;

[0077] x - Closing direction;

[0078] y - Normal direction;

[0079] z - Vertical direction;

[0080] α - Closing angle. Detailed implementation mode

[0081] It should be understood that unless explicitly stated to the contrary, the present invention may adopt various alternative orientations and step sequences. It should also be understood that the specific devices shown in the drawings and described in the specification are only exemplary embodiments of the inventive concept disclosed and defined herein. Thus, unless otherwise explicitly stated, the specific orientations, directions, or other physical characteristics involved in the various disclosed embodiments should not be considered limiting.

[0082] Figure 6 is a schematic diagram of the sealed sliding door 100 according to a non - restrictive embodiment of the present invention, wherein the sealed sliding door 100 is in a closed state; and Figure 7 is Figure 6 an enlarged view of the bottom of the sealed sliding door 100 shown.

[0083] In the drawings of the present invention, Figure 6 - 8 a coordinate system 400 is provided for reference. In one example, the z - axis may represent the vertical direction or the vertical axis (e.g., parallel to the gravity axis), the x - axis may be the horizontal axis, and the positive direction of the x - axis represents the closing direction or the door - closing direction, and / or the y - axis may represent the normal direction perpendicular to the x - axis and the z - axis.

[0084] As shown and according to the non - restrictive embodiment, the sealed sliding door 100 may mainly include: a door body 10, a seal 20, and a slide rail 30.

[0085] The door body 10 can be the same as the door bodies of the prior art shown in the reference Figure 1 - 5 and is used to fit into the opening 201 of the partition member 200 or the wall or the compartment wall to close the opening 201, so as to selectively connect or seal and isolate adjacent compartments of a vehicle such as an aircraft by means of corresponding seals (for example, the seal 20 described below).

[0086] As shown in the figure, the door body 10 can have a generally cuboid structure and includes opposite first side 11 (the right side in the drawing) and second side 12 (the left side in the drawing).

[0087] The seal 20 can be arranged on the side of the door body 10 facing the partition member 200 around the periphery of the door body 10. As shown in the figure, the seal 20 can extend beyond the periphery of the door body 10 in the circumferential direction. The seal 20 can be made of various types of sealing materials known in the art, such as various non-metallic materials, such as various rubbers (natural rubber or synthetic rubber), various polymers, copolymers, and their combinations, etc., and can be made into various desired shapes to meet the required sealing effect. Those skilled in the art can make selections based on the sealing requirements, and these materials are known, so they will not be described in detail herein.

[0088] As a preferred embodiment, the door body 10 can include a seal groove arranged around the periphery of the door body. The seal 20 can be at least partially arranged in the seal groove and protrude from the seal groove to form a flat sealing surface facing the partition member. In this way, the seal 20 is arranged between the door body 10 and the partition member 200, thereby allowing a seal to be formed between them.

[0089] As Figure 7 shown in detail, the slide rail 30 is arranged below the door body 10 in the z-axis direction to carry the door body 10. For example, the slide rail 30 is rigidly connected to the partition member 200 / wall or other rigid bodies inside the vehicle, such as by threaded fasteners, welding, riveting, etc.

[0090] The slide rail 30 can be used to guide the door body 10 to move between the open position and the closed position, for example, reciprocally move along the Figure 7 sliding direction S shown. As shown in the figure, the sliding direction S is the two directions indicated by the double arrow, that is, the door body 10 can move left or right in the embodiment of the drawing.

[0091] Although in the embodiments of the drawings, the slide rail 30 is provided below the door body 10, in alternative embodiments, the slide rail 30 can be arranged both above and below the door body 10, and can also be arranged only above the door body 10 without departing from the scope of the present invention. In embodiments where the slide rail 30 is arranged both above and below the door body 10, the upper slide rail 30 can be symmetrically arranged with the lower 30 and have the same structure, and thus will not be described in detail herein.

[0092] In the embodiments of the drawings, when the door body 10 moves towards the left, it is defined as moving towards the closed position, and conversely, when the door body 10 moves towards the right, it is defined as moving towards the open position.

[0093] As shown in the figure, the slide rail 30 can be formed in the form of a double sliding groove and can include a first guide rail 31 and a second guide rail 32, each guide rail being formed as a separate sliding groove.

[0094] The first guide rail 31 and the second guide rail 32 are arranged at intervals in the normal direction y. For example, the first guide rail 31 can be arranged between the second guide rail 32 and the partition member 200 and are arranged substantially parallel to each other.

[0095] Specifically, the first guide rail 31 and the second guide rail 32 can each be of a segmented structure. For example, the first guide rail 31 can include a first guide rail section 311, a second guide rail section 312, and a first step portion 31a connected therebetween, while the second guide rail 32 can include a third guide rail section 321, a fourth guide rail section 322, and a second step portion 32a connected therebetween.

[0096] The first guide rail section 311 is arranged closer to the partition member 200 than the second guide rail section 312, and the third guide rail section 321 is arranged closer to the partition member 200 than the fourth guide rail section 322. In addition, the first guide rail section 311 and the third guide rail section 321 can be arranged near the left side (i.e., the closed side) of the opening 201 of the partition member 200, while the second guide rail section 312 and the fourth guide rail section 322 can be arranged near the right side of the opening 201 of the partition member 200.

[0097] The first guide rail section 311, the second guide rail section 312, the third guide rail section 321, and the fourth guide rail section 322 can each be parallel, and the distance between the first guide rail section 311 and the third guide rail section 321 can be equal to the distance between the second guide rail section 312 and the fourth guide rail section 322.

[0098] In the example shown in the drawings, the first step-difference portion 31a and the second step-difference portion 32a each form a smooth arc-shaped transition portion. For example, the first step-difference portion 31a can allow a smooth connection between the first guide rail segment 311 and the second guide rail segment 312, while the second step-difference portion 32a can allow a smooth connection between the third guide rail segment 321 and the fourth guide rail segment 322.

[0099] As described herein, the first guide rail 31 and the second guide rail 32 are arranged substantially parallel or essentially parallel, which means the parallel arrangement between the corresponding segments of the first guide rail 31 and the second guide rail 32, rather than the complete parallelism of all parts. For example, the first step-difference portion 31a and the second step-difference portion 32a are arranged substantially parallel to each other, and the first guide rail segment 311 and the third guide rail segment 321, as well as the second guide rail segment 312 and the fourth guide rail segment 322 are respectively arranged parallel to each other.

[0100] In addition, although not shown in the drawings, a corresponding stop mechanism or limit structure can be provided on the partition member 200 or the slide rail 30 to restrict the extreme positions of the door body 10 moving on the slide rail 30. Such a structure is known in the art, and therefore, for the sake of brevity, it is not shown herein and will not be described in detail.

[0101] In the example shown in the drawings, the sealed sliding door 100 can further include a guide wheel assembly 40 fixed to the door body 10. For example, the guide wheel assembly 40 can include two guide wheels, namely the first guide wheel 41 and the second guide wheel 42.

[0102] The first guide wheel 41 can cooperate with the first guide rail 31, while the second guide wheel 42 can cooperate with the second guide rail 32. As shown in the figure, the first guide wheel 41 and the second guide wheel 42 are spaced apart in the sliding direction S of the door body 10 to support the door body 10 and guide the door body 10 to slide in the first guide rail 31 and the second guide rail 32.

[0103] As a preferred embodiment, both the first guide wheel 41 and the second guide wheel 42 are universal wheels, and the universal wheels allow rolling movement in various directions, thereby allowing the first guide wheel 41 and the second guide wheel 42 to translate along the paths of the first guide rail 31 and the second guide rail 32. The guide wheel assembly 40 can be fixed to the door body 10 via a fixing bracket 50, and the details of the fixing bracket 50 will be described in more detail below with reference to Figure 9 and 10 described in more detail.

[0104] In the embodiment shown in the drawings, the first guide rail 31 and the second guide rail 32 are formed in the form of sliding grooves and cooperate with the guide wheel assembly 40 to achieve the reciprocating movement of the sliding door. However, the present invention is not limited thereto, and the first guide rail 31 and the second guide rail 32 can also have other recessed shapes or alternative protruding rail forms.

[0105] For example, the first guide rail 31 and the second guide rail 32 can be rod-shaped or strip-shaped guide rails, and the first guide wheel 41 and the second guide wheel 42 can include recessed structures on the surface of the wheels to cooperate with the rod-shaped or strip-shaped guide rails. These structures are well-known in the art, so they are not shown in the present invention and will not be described in detail either.

[0106] Figure 8 is a schematic diagram of an example slide rail 30 of a sealed sliding door 100 according to a non-limiting embodiment of the present invention.

[0107] As Figure 8 shown in detail, the first guide rail 31 and the second guide rail 32 are arranged substantially parallel to each other, and in the sliding direction S, the first distance L1 between the first step portion 31a and the second step portion 32a is greater than the second distance L2 between the first guide wheel 41 and the second guide wheel 42.

[0108] In addition, in this embodiment, the first step portion 31a and the second step portion 32a are respectively arranged at different positions in the first guide rail 31 and the second guide rail 32. As shown in the figure, the first step portion 31a is arranged behind the second step portion 32a in the closing direction x, that is, the first step portion 31a is arranged on the right side of the second step portion 32a.

[0109] In this way, by controlling the relative magnitudes of the distance L1 between the positions of the two step portions and the distance L2 between the two sets of guide wheels, the rail change and turning of the door body 10 during the sliding process are achieved.

[0110] When L1 > L2, during the process of the door body 10 sliding and closing from the fully open position, the first guide wheel 41 located in the first guide rail 31 reaches the step position (i.e., the first step portion 31a) first and changes the rail. At this time, a surface angle is formed between the door body 10 and the partition member / wall, and the seal 20 (arranged along the circumferential direction of the door) does not contact or mostly does not contact the partition member 200 / wall; immediately afterwards, the second guide wheel 42 located in the second guide rail 32 reaches the step position (i.e., the second step portion 32a) and changes the rail, and the door body 10 and the partition member 200 / wall are again relatively parallel. At this time, the seal 20 (arranged along the circumferential direction of the door) realizes extrusion sealing in the normal direction by abutting against the wall surface of the partition member 200 / wall.

[0111] Specifically, referring to the drawings and according to this embodiment of the present invention, when the first guide wheel 41 is in the second guide rail section 312 and the second guide wheel 42 is in the fourth guide rail section 322, there is a gap between the seal 20 and the partition member 200. For example, when the door body 10 is opened (i.e., the door body 10 is on the right side of the opening 201 in the drawing), or during the movement from the fully open position to the closed position, that is, during the movement from the right side to the left side.

[0112] As the door body 10 continues to move towards the closed or shut position, that is, along the x-axis from the right side to the left side in the drawing, the first guide wheel 41 will enter the second guide rail section 312 via the first step portion 31a, so that the first side 11 of the door body 10 moves towards the partition member 200, while at this time the second guide wheel 42 still remains in the fourth guide rail section 322. This allows a gap to exist between the second side 12 of the door body 10 and the partition member 200. At this time, the state of the door body 10 is Figure 9 schematically shown in.

[0113] As Figure 9 shown, at this time, a closing angle α is formed between the surface of the door body 10 facing the partition member 200 and the surface of the partition member 200 facing the door body 10.

[0114] As the door body 10 continues to move towards the closed or shut position, that is, along the x-axis from the right side to the left side in the drawing, the first guide wheel 41 remains in the first guide rail section 311, while the second guide wheel 42 enters the third guide rail section 321 from the fourth guide rail section 322 via the second step portion 32a, so that the second side 12 of the door body 10 moves towards the partition member 200. This movement allows an instantaneous deflection of the door body 10, or a so-called fan-shaped movement, so that the seal 20 at the second side 12 abuts against the partition member 200. In this way, the seal 20 is compressed between the door body 10 and the partition member 200, and during this closing and shutting process, no tangential friction will be generated between the seal 20 and the partition member 200.

[0115] Through this arrangement of the first step portion 31a and the second step portion 32a, the first side 11 and the second side 12 of the door body 10 achieve non-synchronous displacement in the normal direction y with respect to the partition member 200. This arrangement realizes the instantaneous deflection of the door body 10, so that the non-metallic seal does not need to be in a squeezed state with the partition member 200 or the wall all the time.

[0116] It should be understood that the displacement in the normal direction y as described herein does not narrowly refer to a movement strictly along the normal direction, but rather follows the movement paths of the first-order difference portion 31a and the second-order difference portion 32a, such that the displacement direction of the door body 10 generally occurs in the normal direction, that is, the distance between the door body 10 and the partition member 200 changes, and this change is a change in the normal direction y and is caused by the displacement in the normal direction y as described herein.

[0117] The above describes the operation process of the door body 10 from the open position to the closed position, that is, during door closing. The operation process during door opening is the opposite, that is, the second side 12 of the door body 10 first instantaneously deflects to disengage the seal 20 here from the partition member 200. As the door body 10 continues to open, the seal 20 at the first side 11 of the door body 10 also disengages from the partition member 200. In this way, during the opening or closing movement of the door body, the seal is prevented from having a shortened service life due to long-term tangential friction.

[0118] According to a preferred embodiment of the present invention, the sealing sliding door 100 may further include a normal adjustment device that is fixed to the door body 10 and is used to adjust the initial distance between the door body 10 and the partition member 200 in the normal direction y.

[0119] Figure 10 An embodiment of the normal adjustment device of the sealing sliding door 100 according to a non-limiting embodiment of the present invention is shown.

[0120] As Figure 10 shown and with reference to Figure 9 , according to a non-limiting embodiment of the present invention, the fixing bracket 50 may include a first bracket 51 and a second bracket 52. The first bracket 51 and the second bracket 52 may each have a substantially L-shaped cross-section so as to be fixed to the door body 10 (e.g., by means of a substantially vertical portion) and the guide wheel assembly 40 (e.g., by means of a substantially horizontal portion) respectively at both sides of the L-shaped structure.

[0121] In Figure 9 the embodiment, the substantially L-shaped first bracket 51 and second bracket 52 are arranged in opposite directions in the normal direction y. For example, the substantially horizontal portion of the first bracket 51 may extend towards the partition member 200, while the substantially horizontal portion of the second bracket 52 may extend away from the partition member 200. In this way, the position step difference between the first guide wheel 41 and the second guide wheel 42 and the first guide rail 31 and the second guide rail 32 can be compensated, that is, the position offset in the normal direction y. In this way, it is allowed that the door body 10 and the partition member 200 / wall are relatively parallel in the fully closed or fully open state.

[0122] In Figure 10In the embodiments, only the detailed structure of the second bracket 52 is shown. However, the structure of the first bracket 51 may be the same as or similar to that of the second bracket 52, except that their orientations are different.

[0123] As Figure 10 shown, for example, the fixing bracket 50 of the second bracket 52 may include a protrusion 521 extending from the door body 10 in the normal direction y, i.e., a substantially horizontal portion. The protrusion 521 may be provided with oblong holes 521a extending in the normal direction y, such as 4 oblong holes provided in the drawings. The guide wheel assembly 40 is fixed to the fixing bracket 50 via fasteners that cooperate with the oblong holes 521a.

[0124] According to a non-limiting embodiment of the present invention, the corresponding sealed sliding door 100 for a vehicle can be customized via the following design steps.

[0125] a) By pre-calculating and analyzing or querying existing information, the compression rate parameter of the seal 20 (arranged circumferentially around the door body 10) is obtained. Based on information such as the geometric dimensions of the opening 201 / aisle, the spacing between the first guide wheel 41 and the second guide wheel 42 and the step difference position of the first guide rail 31 and the second guide rail 32 are defined, such as the relative positioning in the closing direction x and the normal direction y;

[0126] b) By performing a motion simulation to analyze the sliding state of the first guide wheel 41 and the second guide wheel 42 in the first guide rail 31 and the second guide rail 32 (when the door body 10 moves from the fully open state to the fully closed state), relevant design parameters are adjusted and optimized according to the analysis results;

[0127] c) The seal 20 (arranged circumferentially around the door body 10) can be fixed around the door body 10 through a seal slot, and the slide rail 30 is rigidly connected to the partition 200 / wall or other rigid bodies through fasteners. The guide wheel assembly 40 can be connected to the fixing bracket 50 through adjusting screws, and the fixing bracket 50 is connected to the door body 10 through fixing screws; and

[0128] Optionally, d) The real-time adjustment of the compression rate of the seal 200 during use is achieved through the oblong holes 521a for installing the adjusting screws.

[0129] The sealed sliding door 100 according to the present invention includes but is not limited to the following advantages:

[0130] a) The instantaneous deflection of the sliding door is achieved by controlling the relative sizes of the step difference spacing between the first guide rail 31 and the second guide rail 32 (inner and outer rails) and the spacing between the two sets of guide wheels. This solution has strong designability. Compared with existing solutions, it can save space and has the characteristics of good sealing effect of the rotary door body. Moreover, by realizing the instantaneous deflection of the door body, it is not necessary for the seal (such as a non-metallic seal) to be continuously in a squeezed state with the wall. At the same time, during the movement process, it also avoids the adverse effects that the seal has a short service life or even is scratched out of the installation groove due to long-term tangential friction.

[0131] b) By using an oval screw hole connection design on the fixed bracket, on the one hand, the adjustable function of the compression pre-tightening force of the sliding door can be realized to meet the sealing level requirements between compartments. On the other hand, it can enable the sustainable adjustment ability of the sliding door during maintenance and repair. That is, when the compression rate index of the seal decreases, compensation can be made through this design without immediately replacing parts.

[0132] The sealed sliding door 100 according to the present invention has a relatively wide application scenario in the field of integrated structural function design of transportation tools such as aircraft fuselages, and can be used for the design of passage doors between adjacent compartments inside transportation tools with requirements for preventing smoke penetration.

[0133] As used herein, the terms "closing direction" and "opening direction" indicating orientation or direction, and the terms "first", "second", etc. used to indicate sequence are only for enabling those of ordinary skill in the art to better understand the concept of the present invention shown in the preferred embodiments, rather than for limiting the present invention. Unless otherwise specified, all sequences, orientations or directions are only for the purpose of distinguishing one element / component / structure from another element / component / structure, and do not represent any specific sequence, operating sequence, direction or orientation unless otherwise specified. For example, in an alternative embodiment, the "first side portion" may be the "second side portion".

[0134] In summary, the sealed sliding door 100 according to the embodiments of the present invention overcomes the disadvantages in the prior art and achieves the intended invention purpose.

[0135] Although the sealed sliding door of the present invention has been described above in combination with preferred embodiments, those of ordinary skill in the art should recognize that the above examples are only for illustration and cannot be used to limit the present invention. Therefore, various modifications and variations can be made to the present invention within the scope of the spirit of the claims, and these modifications and variations will all fall within the scope required by the claims of the present invention.

Claims

1. A sealed sliding door (100), comprising: A door body (10), the door body including opposite first and second sides (11, 12) and being adapted to fit into an opening (201) of a partition member (200) to close the opening (201); A seal (20), the seal being disposed around the periphery of the door body (10) on the side of the door body (10) facing the partition member (200); A slide rail (30), the slide rail carrying the door body (10) and being adapted to guide the door body (10) to move between an open position and a closed position, Wherein, the slide rail (30) includes a first guide rail (31) and a second guide rail (32), the first guide rail (31) being provided with a first step portion (31a), and the second guide rail (32) being provided with a second step portion (32a); and A guide wheel assembly (40) fixed to the door body (10), the guide wheel assembly including a first guide wheel (41) cooperating with the first guide rail (31) and a second guide wheel (42) cooperating with the second guide rail (32), wherein, the first guide wheel (41) and the second guide wheel (42) are spaced apart in the sliding direction (S) of the door body (10), The first guide rail (31) and the second guide rail (32) are arranged parallel to each other, and in the sliding direction (S), a first distance (L1) between the first step portion (31a) and the second step portion (32a) is greater than a second distance (L2) between the first guide wheel (41) and the second guide wheel (42), Wherein, the first step portion (31a) and the second step portion (32a) are configured such that the first side (11) and the second side (12) of the door body (10) are displaced non-synchronously in the normal direction (y) relative to the partition member (200).

2. The sealed sliding door (100) according to claim 1, characterized in that, The sealed sliding door further includes a normal adjustment device, the normal adjustment device being fixed to the door body (10) for adjusting an initial distance between the door body (10) and the partition member (200) in the normal direction (y).

3. The sealed sliding door (100) according to claim 2, wherein, The guide wheel assembly (40) is fixed to the door body (10) via a fixing bracket (50), wherein, the fixing bracket (50) includes a protrusion (521) extending from the door body (10) in the normal direction (y), the protrusion being provided with an oblong hole (521a) extending in the normal direction (y), and the guide wheel assembly (40) is fixed to the fixing bracket (50) via a fastener cooperating with the oblong hole (521a).

4. The sealed sliding door (100) according to claim 1, characterized in that, The first guide rail (31) is arranged between the second guide rail (32) and the partition member (200), and wherein, the first step portion (31a) is arranged behind the second step portion (32a) in the closing direction (x).

5. The sealed sliding door (100) according to any one of claims 1-4, characterized in that, The first guide rail (31) includes a first guide rail section (311) and a second guide rail section (312) connected via the first step portion (31a), and the second guide rail (32) includes a third guide rail section (321) and a fourth guide rail section (322) connected via the second step portion (32a). Wherein, when the first guide wheel (41) is on the second guide rail section (312) and the second guide wheel (42) is on the fourth guide rail section (322), there is a gap between the seal (20) and the partition member (200), and when the first guide wheel (41) is on the first guide rail section (311) and the second guide wheel (42) is on the third guide rail section (321), the seal (20) is compressed between the door body (10) and the partition member (200).

6. The sealed sliding door (100) according to any one of claims 1-4, characterized in that, The first step portion (31a) and the second step portion (32a) each form a smooth arc-shaped transition portion.

7. The sealed sliding door (100) according to any one of claims 1-4, characterized in that, The door body (10) includes a seal groove provided around the periphery of the door body (10), and the seal (20) is at least partially disposed in the seal groove and protrudes from the seal groove to form a flat seal surface facing the partition member (200).

8. A vehicle including a sealed sliding door (100) according to any one of claims 1-7, the sealed sliding door (100) cooperating with the partition member (200) to selectively communicate or hermetically isolate adjacent compartments of the vehicle.

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