Door device and folding door

Abstract

The application provides a door body device and a folding door. The door body device comprises a door row, a walking mechanism, a resilient member and a fixed object. The walking mechanism is arranged at the bottom of the door row and is rotationally connected with the door row. The walking mechanism is arranged movably on the fixed object and is connected with a guide rail arranged on the fixed object, so that the walking mechanism can drive the door row to move along the extension direction of the guide rail. The resilient member is elastically connected with the door row and the walking mechanism. When the walking mechanism drives the door row to move along the extension direction of the guide rail, the walking mechanism can move relative to the door row along a first direction under the action of an external force or along a second direction under the action of the resilient member. The first direction is the direction of the guide rail towards the door row, and the second direction is the opposite direction of the first direction. When the door body device is applied to the folding door, the problem of interference between the walking mechanism and the guide rail and the problem of jamming can be avoided or weakened.

Description

Technical Field

[0001] This application relates to the field of folding door technology, specifically to a door assembly and a folding door. Background Technology

[0002] A folding door is a door device that can be folded or unfolded. A folding door includes a guide rail, a traveling mechanism, multiple door panels, and a drive unit. The traveling mechanism is mounted on a fixed object (the ground or a fixed object laid on the ground) and is movable. The traveling mechanism works in conjunction with the guide rail to ensure that the direction of movement of the traveling mechanism is the extension direction of the guide rail. The door panels are rotatably connected above the traveling mechanism, and adjacent door panels are hinged together. The drive unit drives the door panels, causing multiple door panels to move along the extension direction of the guide rail, folding or unfolding during movement. It is understandable that the fixed object may not be completely flat, and may have large or small undulations, such as uphill or downhill sections. Since the guide rail is mounted on the fixed object, it will also follow the corresponding undulations, resulting in inconsistent distances between the guide rail and the door panels.

[0003] In related technologies, the traveling mechanism cannot move relative to the gate in the direction perpendicular to the fixed object (hereinafter referred to as the vertical direction), and the traveling mechanism is constrained by the guide rail in the vertical direction to ensure that the traveling mechanism and the guide rail always maintain cooperation and avoid separation. When the traveling mechanism reaches the undulating part of the guide rail (uphill or downhill section), the traveling mechanism and the guide rail move relative to each other in the vertical direction but are not synchronized. The two then come into contact with each other in the vertical direction and rub against each other, which increases the movement resistance of the traveling mechanism, thus causing a jamming problem, that is, the folding or unfolding process of multiple gates is not smooth. Utility Model Content

[0004] This application provides a door device and a folding door. When the door device is applied to a folding door, it can avoid or reduce the problem of jamming caused by interference between the walking mechanism and the guide rail.

[0005] In a first aspect, this application provides a door device, the door device comprising: Gate; A traveling mechanism, disposed at the bottom of the gate and rotatably connected to it, is movably mounted on a fixed object and engages with a guide rail mounted on the fixed object, thereby enabling the traveling mechanism to drive the gate to move along the extension direction of the guide rail; and An elastic element is elastically connected to the gate and the traveling mechanism. When the traveling mechanism drives the gate to move along the extension direction of the guide rail, the traveling mechanism can move relative to the gate in a first direction under the action of an external force, or move relative to the gate in a second direction under the action of the elastic element; wherein, the first direction is the direction of the guide rail toward the gate, and the second direction is the opposite direction of the first direction.

[0006] In some embodiments, the walking mechanism includes a walking body, a connecting shaft, and a limiting guide wheel. The connecting shaft is fixed to the walking body and rotatably connected to the gate, and the connecting shaft can move relative to the gate along the first direction or the second direction. The limiting guide wheel is rotatably connected to the walking body and can move along the extension direction of the guide rail.

[0007] In some embodiments, the opposite ends of the elastic element elastically abut against the gate and the walking body, respectively; Alternatively, the opposite ends of the elastic element may elastically abut against the gate and the connecting shaft, respectively.

[0008] In some embodiments, the opposite ends of the elastic element are respectively connected to the gate and the connecting shaft; The gate includes a crossbeam and abutment members. The connecting shaft passes through the crossbeam and can rotate relative to the crossbeam. The connecting shaft can move relative to the crossbeam in a first direction or a second direction. The abutment members are connected to the crossbeam and are located on the side of the crossbeam opposite to the walking body, corresponding to the connecting shaft. The elastic members are located inside the abutment members, and the opposite ends of the elastic members abut against the abutment members and the connecting shaft, respectively.

[0009] In some embodiments, the abutting member includes a skirt portion, an annular portion, and an abutting portion, wherein the abutting portion is connected to the inner peripheral wall of the annular portion, the skirt portion is connected to the outer peripheral wall of the annular portion, and the skirt portion is connected to the crossbeam; The elastic element is disposed within the annular portion, with one end of the elastic element abutting against the abutting portion and the other end abutting against the connecting shaft.

[0010] In some embodiments, the abutment further includes a columnar portion located within the annular portion and connected to the abutment portion, and the elastic member is sleeved on the outer periphery of the columnar portion or the columnar portion is sleeved on the outer periphery of the elastic member.

[0011] In some embodiments, the connecting shaft includes a first shaft segment and a second shaft segment. The first shaft segment is rotatably connected to the crossbeam, and the second shaft segment is connected to the end of the first shaft segment away from the walking body. The diameter of the second shaft segment is smaller than the diameter of the first shaft segment. The elastic element is sleeved on the outer periphery of the second shaft segment and abuts against the first shaft segment.

[0012] In some embodiments, the gate further includes a bearing assembly comprising a bearing housing, a first radial bearing, and a second radial bearing. The bearing housing is mounted on the crossbeam, and the first and second radial bearings are mounted within the bearing housing. The first and second radial bearings are sleeved on the outer periphery of the connecting shaft and are clearance-fitted with the connecting shaft, so that the connecting shaft can move relative to the gate along the first or second direction.

[0013] In some embodiments, the walking body includes a housing assembly, a third radial bearing, and a fourth radial bearing. The housing assembly is connected to the connecting shaft. The third and fourth radial bearings are mounted on the housing assembly and sleeved on the outer periphery of the limiting guide wheel. The limiting guide wheel is clearance-fitted with the third and fourth radial bearings so that the limiting guide wheel can move relative to the walking body in the first or second direction.

[0014] Secondly, this application also provides a folding door, the folding door comprising: a door body device.

[0015] In the door device provided in this application, the walking mechanism is configured to move relative to the door panel in either a first or second direction. An elastic element applies an elastic force in the second direction to the walking mechanism. If this door device is applied to a folding door, the problem of interference and jamming between the walking mechanism and the guide rail can be overcome. Specifically, when the walking mechanism moves to an uphill section of a fixed object, the fixed object will "lift" the walking mechanism, forcing it to move relative to the door panel in the first direction. At this time, the guide rail will also gradually approach the door panel in the first direction, following the fixed object. Therefore, there is no relative movement or only minimal relative movement between the walking mechanism and the guide rail in the first direction. This avoids or reduces the problem of interference and jamming between the walking mechanism and the guide rail when moving to an uphill section. Similarly, when the traveling mechanism moves to the downhill section of the fixed object, the elastic element will "press down" on the traveling mechanism, that is, the elastic element will force the traveling mechanism to move relative to the gate in the second direction. At this time, the guide rail will also gradually move away from the gate in the second direction along with the fixed object. Therefore, there is no relative movement or only a small relative movement between the traveling mechanism and the guide rail in the second direction. This can avoid or reduce the problem of interference and jamming between the traveling mechanism and the guide rail when moving to the downhill section. In summary, the gate device provided in this application can ensure that the traveling mechanism is as synchronized as possible with the guide rail in the first and second directions, thereby avoiding or reducing the problem of interference and jamming between the two. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the door device and guide rail provided in the embodiments of this application.

[0018] Figure 2 for Figure 1 A magnified view of a portion of the structure shown.

[0019] Figure 3 for Figure 2 The diagram shows the structure after some components have been hidden.

[0020] Figure 4 In order to be in Figure 3 A schematic diagram of the traveling mechanism descending relative to the gate in the second direction.

[0021] Figure 5 for Figure 1 A schematic diagram of the traveling mechanism and guide rail in the structure shown.

[0022] Figure 6 for Figure 5 A magnified view of a portion of the structure shown.

[0023] Figure 7 This is a schematic diagram showing the elastic element provided in the embodiment of this application disposed between the gate and the walking body.

[0024] Figure 8 for Figure 3 A magnified view of a portion of the structure shown.

[0025] Figure 9 for Figure 8 A schematic diagram of the abutment component in the structure shown.

[0026] Figure 10 for Figure 8 A schematic diagram of the connecting shaft in the structure shown.

[0027] Figure 11 This is a cross-sectional view of the walking mechanism provided in an embodiment of this application at the limiting guide wheel.

[0028] Figure 12 This is a schematic diagram of a folding door in an unfolded state, as provided in an embodiment of this application.

[0029] Figure 13 for Figure 12 The diagram shows a folding door from another perspective.

[0030] Figure 14 This is a schematic diagram of a folding door in a half-open state, as provided in an embodiment of this application.

[0031] Figure 15 This is a schematic diagram of a folding door in its fully open state, as provided in an embodiment of this application.

[0032] Explanation of icon numbers: Folding door - 1; Door body assembly - 10; Door panel - 110; Crossbeam - 111; Abutting part - 112; Skirt - 1121; Ring part - 1122; Abutting part - 1123; Column part - 1124; Bearing assembly - 113; Bearing seat - 1131; Second radial bearing - 1132; First radial bearing - 1133; Thrust bearing - 1134; Snap ring - 1135; Traveling mechanism - 120; Traveling body - 121; Housing assembly - 1211; Roller - 1212; Third radial... Radial bearing-1213; Fourth radial bearing-1214; Connecting shaft-122; First shaft segment-1221; Second shaft segment-1222; Third shaft segment-1223; Limiting guide wheel-123; Shaft segment part-1231; Wheel body part-1232; Limiting groove-1232a; Elastic element-130; Guide rail 20; Extension part-210; Drive device-30; First door body-40; Tail door body-50; Fixing device-60; Fixed door body-70; First direction-F1; Second direction-F2. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] Please refer to Figures 1 to 4This application provides a door device 10, which includes a door panel 110, a traveling mechanism 120, and an elastic element 130. The traveling mechanism 120 is disposed at the bottom of the door panel 110 and rotatably connected to it. The traveling mechanism 120 is movably mounted on a fixed object and is connected to a guide rail 20 mounted on the fixed object, allowing the traveling mechanism 120 to drive the door panel 110 to move along the extension direction of the guide rail 20. The elastic element 130 is elastically connected to the door panel 110 and the traveling mechanism 120. When the traveling mechanism 120 drives the door panel 110 to move along the extension direction of the guide rail 20, the traveling mechanism 120 can move relative to the door panel 110 in a first direction F1 under the action of an external force, or move relative to the door panel 110 in a second direction F2 under the action of the elastic element 130. Wherein, the first direction F1 is the direction from which the guide rail 20 faces the door panel 110, and the second direction F2 is the opposite direction of the first direction F1.

[0036] The following description, in conjunction with the accompanying drawings, elaborates on the topic.

[0037] The traveling mechanism 120 is movably mounted on a fixed object and is connected to a guide rail 20 mounted on the fixed object, allowing the traveling mechanism 120 to move along the extension direction of the guide rail 20. In other words, the traveling mechanism 120 is mounted on the fixed object and can move on it. The traveling mechanism 120 cooperates with and is constrained by the guide rail 20, thereby ensuring that the direction of movement of the traveling mechanism 120 on the fixed object is consistent with the extension direction of the guide rail 20. The movement of the traveling mechanism 120 can be, but is not limited to, rolling or sliding. The fixed object can be the ground or a fixed object laid on the ground.

[0038] The traveling mechanism 120 is rotatably connected to the gate 110, and this rotatable connection can be, but is not limited to, achieved through bearings. The traveling mechanism 120 can move relative to the gate 110 along a first direction F1 or a second direction F2. The first direction F1 is the direction from the guide rail 20 toward the gate 110, and the second direction F2 is the opposite direction of the first direction F1. In other words, the traveling mechanism 120 can move vertically upwards or vertically downwards relative to the gate 110.

[0039] The elastic element 130 is elastically connected to the gate 110 and the walking mechanism 120. Under the action of the gate 110, the elastic element 130 always applies an elastic force of the second direction F2 to the walking mechanism 120. That is, the gate 110 applies an elastic force of the second direction F2 to the walking mechanism 120 through the elastic element 130. It can be understood that the elastic force along the second direction F2 will force the walking mechanism 120 to always be in contact with the fixed object. The elastic element 130 can be a helical spring or other elastic objects, such as an elastic structure similar to a bellows. This application only illustrates a helical spring.

[0040] In the door device 10 provided in this application, the walking mechanism 120 is configured to move relative to the door panel 110 in either a first direction F1 or a second direction F2. An elastic element 130 applies an elastic force of the second direction F2 to the walking mechanism 120. If this door device 10 is applied to a folding door 1, the problem of interference and jamming between the walking mechanism 120 and the guide rail 20 can be overcome. Specifically, when the walking mechanism 120 moves to an uphill section of a fixed object, the fixed object will "lift" the walking mechanism 120, that is, the fixed object forces the walking mechanism 120 to move relative to the door panel 110 in the first direction F1 (e.g., ...). Figures 4 to 3 During the movement process, the elastic potential energy of the elastic element 130 increases. At this time, the guide rail 20 will also gradually approach the gate 110 along the first direction F1, following the fixed object. Therefore, there is no relative movement or only a small relative movement between the walking mechanism 120 and the guide rail 20 in the first direction F1. This can avoid or reduce the problem of interference and jamming between the walking mechanism 120 and the guide rail 20 when it moves to the uphill section. Similarly, when the walking mechanism 120 moves to the downhill section of the fixed object, the elastic element 130 will "press down" the walking mechanism 120, that is, the elastic element 130 will force the walking mechanism 120 to move relative to the gate 110 in the second direction F2 (e.g., Figures 3 to 4 During the movement process, the elastic potential energy of the elastic element 130 decreases. At this time, the guide rail 20 will also gradually move away from the door panel 110 along the fixed object in the second direction F2. Therefore, there is no relative movement or only a small relative movement between the walking mechanism 120 and the guide rail 20 in the second direction F2. This can avoid or reduce the problem of interference and jamming between the walking mechanism 120 and the guide rail 20 when moving to the downhill section. In summary, the door device 10 provided by this application can ensure that the walking mechanism 120 is as synchronized as possible with the guide rail 20 in the first direction F1 and the second direction F2, thereby avoiding or reducing the problem of interference and jamming between the two.

[0041] It should be noted that, Figure 3 The walking mechanism 120 shown has risen to its highest point relative to the gate 110 in the first direction F1.

[0042] Please refer to Figure 5The walking mechanism 120 includes a walking body 121, a connecting shaft 122, and a limiting guide wheel 123.

[0043] The walking body 121 may include a housing assembly 1211 and rollers 1212. The rollers 1212 are rotatably mounted on the housing assembly 1211. The rollers 1212 are placed on a fixed object and can roll on the fixed object. Under the action of the elastic member 130, the rollers 1212 are always in contact with the fixed object. The number of rollers 1212 is preferably an even number and symmetrically arranged. The number can be, but is not limited to, 2, 4, 6, etc.

[0044] The connecting shaft 122 is columnar and fixed to the walking body 121. The connection between the two can be detachable (e.g., via bolts or other threaded connections) or non-detachable (e.g., by welding or bonding). The connecting shaft 122 is rotatably connected to the door panel 110, meaning the door panel 110 can rotate relative to the connecting shaft 122. This rotatable connection can be achieved, but is not limited to, via bearings. Furthermore, the connecting shaft 122 can move relative to the door panel 110 along either the first direction F1 or the second direction F2.

[0045] The limiting guide wheel 123 is rotatably connected to the walking body 121 and can move along the extension direction of the guide rail 20. When the walking mechanism 120 moves along the extension direction of the guide rail 20, the limiting guide wheel 123 can roll on the side of the guide rail 20, which can reduce the friction between the limiting guide wheel 123 and the rail. The number of limiting guide wheels 123 can be at least two, preferably an even number and symmetrically arranged, such as two or four. A portion of the limiting guide wheels 123 (hereinafter referred to as the first limiting member) is located on one side of the guide rail 20, and another portion of the limiting guide wheels 123 (hereinafter referred to as the second limiting member) is symmetrically located on the other side of the guide rail 20, so that the guide rail 20 is located between the first limiting member and the second limiting member (e.g., Figure 5 As shown, the guide rail 20 can thus limit the travel mechanism 120 in the relative direction of the first and second limiting members, so as to prevent the movement direction of the travel mechanism 120 from deviating from the extension direction of the guide rail 20.

[0046] Optionally, there are two limiting guide wheels 123, located on opposite sides of the guide rail 20, with a gap between the two limiting guide wheels 123 and the guide rail 20. It is understood that in actual operation, the traveling body 121 does not move linearly, causing one of the limiting guide wheels 123 to roll along the side of the guide rail 20.

[0047] Please refer to Figure 6The limiting guide wheel 123 may include a shaft segment 1231 and a wheel body 1232. The wheel body 1232 is connected to one end of the shaft segment 1231 and is roll-fitted with the guide rail 20. In a first embodiment, the shaft segment 1231 is rotatably connected to the housing assembly 1211, and the wheel body 1232 is fixedly connected to the shaft segment 1231 and cannot rotate relative to the shaft segment 1231. When the traveling mechanism 120 moves along the guide rail 20, the shaft segment 1231 and the wheel body 1232 rotate synchronously. In a second embodiment, the shaft segment 1231 is fixedly connected to the housing assembly 1211 and cannot rotate relative to the housing, and the wheel body 1232 is rotatably connected to the shaft segment 1231. When the traveling mechanism 120 moves along the guide rail 20, the wheel body 1232 rotates relative to the shaft segment 1231. Subsequent embodiments in this application are based solely on the first embodiment for illustrative purposes.

[0048] Please refer to Figure 6 The outer periphery of the wheel body 1232 may be provided with an annular limiting groove 1232a, which surrounds the central axis of the wheel body 1232. The guide rail 20 may be provided with an extension 210, which is disposed within the limiting groove 1232a. With this configuration, the guide rail 20 can limit the travel mechanism 120 in the first direction F1 and the second direction F2, so as to prevent the travel mechanism 120 from disengaging from the guide rail 20 in these two directions.

[0049] When the walking mechanism 120 moves to the uphill section of the fixed object, the fixed object will force the walking body 121 to move relative to the gate 110 in the first direction F1. The limiting guide wheel 123 will follow the walking body 121 to approach the gate 110 in the first direction F1. Since the guide rail 20 located on the uphill section will gradually approach the gate 110 in the first direction F1, there is no relative movement or only a small relative movement between the wheel body 1232 of the limiting guide wheel 123 and the guide rail 20 in the first direction F1. This can avoid or reduce the problem of the walking body 121 interfering with the guide rail 20 and getting stuck when it moves to the uphill section.

[0050] When the walking mechanism 120 moves to the downhill section of the fixed object, the elastic element 130 will force the walking body 121 to move relative to the gate 110 in the second direction F2. The limiting guide wheel 123 will follow the walking body 121 away from the gate 110 in the second direction F2. Since the guide rail 20 located on the downhill section will gradually move away from the gate 110 in the second direction F2 along with the fixed object, there is no relative movement or the relative movement is small between the wheel body 1232 of the limiting guide wheel 123 and the guide rail 20 in the second direction F2. This can avoid or reduce the problem of the walking body 121 interfering with the guide rail 20 and getting stuck when it moves to the downhill section.

[0051] Furthermore, the elastic element 130 can achieve "the elastic element 130 applying a second direction F2 elastic action to the walking mechanism 120 under the action of the gate 110" by acting on the connecting shaft 122 and / or the walking body 121, as follows in three embodiments.

[0052] In the first embodiment, the opposite ends of the elastic member 130 elastically abut against the gate 110 and the connecting shaft 122, respectively. Under the action of the gate 110, the elastic member 130 applies an elastic force in the second direction F2 to the connecting shaft 122. In short, the elastic member 130 applies an elastic force to the connecting shaft 122, such as... Figures 2 to 5 As shown.

[0053] In the second embodiment, the opposite ends of the elastic member 130 elastically abut against the gate 110 and the walking body 121, respectively. Under the action of the gate 110, the elastic member 130 applies an elastic force in the second direction F2 to the walking body 121. In short, the elastic member 130 applies an elastic force to the walking body 121, such as... Figure 7 As shown.

[0054] In the third embodiment, the door device 10 includes two elastic members 130. The opposite ends of one elastic member 130 elastically abut against the door panel 110 and the walking body 121, respectively. The opposite ends of the other elastic member 130 elastically abut against the door panel 110 and the connecting shaft 122, respectively. In short, one elastic member 130 applies an elastic force to the connecting shaft 122, and the other elastic member 130 applies an elastic force to the connecting shaft 122.

[0055] It should be noted that the subsequent embodiments of this application are only based on the first implementation method described above, but should not be regarded as limiting this application.

[0056] Please combine Figure 5 Reference Figure 8 The gate 110 includes a crossbeam 111 and an abutment 112. A connecting shaft 122 passes through the crossbeam 111 and is rotatable relative to the crossbeam 111. The connecting shaft 122 is movable relative to the crossbeam 111 in a first direction F1 or a second direction F2. The abutment 112 is connected to the crossbeam 111 and is located on the side of the crossbeam 111 opposite to the walking body 121, corresponding to the connecting shaft 122. An elastic member 130 is disposed within the abutment 112, and the opposite ends of the elastic member 130 abut against the abutment 112 and the connecting shaft 122, respectively, thus realizing that "the opposite ends of the elastic member 130 are respectively connected to the gate 110 and the connecting shaft 122".

[0057] Generally, to avoid excessive gaps between the gate 110 and the fixed object, the gap between the walking body 121 and the gate 110 is set to be relatively small. Therefore, compared to placing the elastic element 130 between the walking body 121 and the gate 110, this embodiment uses an abutment member 112 on the side of the crossbeam 111 away from the walking body 121 to abut the elastic element 130. This makes it easier to assemble, disassemble, and select the specifications of the elastic element 130. Furthermore, placing the elastic element 130 inside the abutment member 112 hides the elastic element 130, improving its aesthetics and providing protection. The connection between the abutment member 112 and the crossbeam 111 can be a detachable connection (e.g., connected by bolts or other threaded parts), which facilitates later disassembly and replacement. Alternatively, the connection between the abutment member 112 and the crossbeam 111 can be a non-detachable connection (e.g., welding, bonding). A non-detachable connection improves the integrity of the abutment member 112 and the crossbeam 111, resulting in a more secure connection.

[0058] Please refer to Figure 9 The abutment member 112 includes a skirt portion 1121, an annular portion 1122, and an abutment portion 1123. The annular portion 1122 is a hollow cylindrical structure, which can be, but is not limited to, a cylinder or a square tube. The skirt portion 1121 and the abutment portion 1123 are respectively connected to both ends of the annular portion 1122 along its length. The abutment portion 1123 is connected to the inner peripheral wall of the annular portion 1122, and the abutment portion 1123 and the annular portion 1122 together form a receiving space. The skirt portion 1121 is connected to the outer peripheral wall of the annular portion 1122, that is, the skirt portion 1121 is connected to the side of the annular portion 1122 away from the receiving space, and the skirt portion 1121 is connected to the crossbeam 111, for example, by bolts. The elastic element 130 is disposed within the annular portion 1122, with one end of the elastic element 130 abutting against the abutting portion 1123 and the other end abutting against the connecting shaft 122. In other words, the elastic element 130 is disposed within the receiving space, and after assembly, its opposite ends in the length direction abut against the abutting portion 1123 and the connecting shaft 122 respectively. Thus, the elastic element 130, under the action of the gate 110, applies the second direction F2 elastic force to the walking mechanism 120.

[0059] Please refer to Figure 9The abutment member 112 further includes a columnar portion 1124, which may be, but is not limited to, a cylinder, a triangular prism, or a square prism. The columnar portion 1124 is located within the annular portion 1122 and connected to the abutment portion 1123; that is, the columnar portion 1124 protrudes from the abutment portion 1123 on the side facing the connecting shaft 122. In one embodiment, the elastic member 130 is sleeved on the outer periphery of the columnar portion 1124, or in other words, the columnar portion 1124 passes through the elastic member 130 to limit the elastic member 130. In another embodiment, the columnar portion 1124 is sleeved on the outer periphery of the elastic member 13, or in other words, the elastic member 13 passes through the columnar portion 1124 to limit the elastic member 130.

[0060] It is understandable that the traveling mechanism 120 may vibrate during its movement along the guide rail 20. This vibration may cause the elastic element 130 to become misaligned, resulting in the force exerted by the elastic element 130 on the connecting shaft 122 deviating from the second direction F2. This would be detrimental to the movement of the connecting shaft 122 in the first direction F1 or the second direction F2. In this embodiment, the elastic element 130 is sleeved on the columnar portion 1124, which can position the elastic element 130, thereby preventing the elastic force exerted by the elastic element 130 on the connecting shaft 122 from deviating from the second direction F2.

[0061] Please refer to Figure 8 and Figure 10 The connecting shaft 122 includes a first shaft segment 1221 and a second shaft segment 1222. The first shaft segment 1221 is directly or indirectly connected to the walking body 121 and rotatably connected to the crossbeam 111. The second shaft segment 1222 is connected to the end of the first shaft segment 1221 away from the walking body 121. The diameter of the second shaft segment 1222 is smaller than the diameter of the first shaft segment 1221. The elastic member 130 is sleeved on the outer periphery of the second shaft segment 1222 and abuts against the first shaft segment 1221. That is, the second shaft segment 1222 protrudes from the end face of the first shaft segment 1221 away from the walking body 121. Since the diameter of the second shaft segment 1222 is smaller than that of the first shaft segment 1221, the elastic member 130 sleeved on the second shaft segment 1222 will abut against the end face of the first shaft segment 1221. Thus, the opposite ends of the elastic member 130 elastically abut against the abutment portion 1123 of the abutment member 112 and the end face of the first shaft segment 1221, respectively, and the elastic member 130 is always in a compressed state. It can be understood that in this embodiment, the elastic member 130 is sleeved on the second shaft segment 1222, which can also play a positioning role for the elastic member 130, thereby preventing the elastic action of the elastic member 130 on the connecting shaft 122 from deviating from the second direction F2.

[0062] Please refer to Figure 8 and Figure 10 The gate 110 also includes a bearing assembly 113 (such as...). Figure 8 As shown), the first shaft segment 1221 of the connecting shaft 122 is rotatably connected to the crossbeam 111 via a bearing assembly 113. The bearing assembly 113 includes a bearing housing 1131, a first radial bearing 1133, and a second radial bearing 1132 (as shown). Figure 8 (As shown). The bearing housing 1131 is fixedly installed on the crossbeam 111. The fixing method can be, but is not limited to, threaded connection, welding, bonding, etc. The first radial bearing 1133 and the second radial bearing 1132 are installed in the bearing housing 1131, and the first radial bearing 1133 and the second radial bearing 1132 are sleeved on the outer periphery of the connecting shaft 122, and are clearance-fitted with the connecting shaft 122, so that the connecting shaft 122 can move relative to the gate 110 in the first direction F1 or the second direction F2.

[0063] Specifically, the first shaft segment 1221 of the connecting shaft 122 is rotatably connected to the bearing housing 1131 via a first radial bearing 1133 and a second radial bearing 1132. The first radial bearing 1133 and the second radial bearing 1132 can be ball bearings or cylindrical roller bearings. The outer rings of both the first radial bearing 1133 and the second radial bearing 1132 are fixed to the bearing housing 1131, and both can be transition-fitted or interference-fitted to the bearing housing 1131. The bearing assembly 113 may also include two snap rings 1135 (e.g., Figure 8 As shown, two retaining rings 1135 are embedded in the bearing housing 1131. One retaining ring 1135 abuts against the outer ring of the first radial bearing 1133, and the other retaining ring 1135 abuts against the outer ring of the second radial bearing 1132. This arrangement prevents axial movement of the outer rings of the first radial bearing 1133 and the second radial bearing 1132. The inner rings of both the first radial bearing 1133 and the second radial bearing 1132 are fitted around the outer circumference of the first shaft segment 1221 of the connecting shaft 122, with a clearance fit. This clearance fit allows the first shaft segment 1221 to move relative to the first radial bearing 1133 and the second radial bearing 1132 in either the first direction F1 or the second direction F2.

[0064] It is understandable that the walking mechanism 120 may sway during its movement along the guide rail 20. After prolonged swaying, the connecting shaft 122 may become misaligned relative to the crossbeam 111, resulting in uneven rotation of the gate 110 relative to the connecting shaft 122. In this embodiment, two bearings, a first radial bearing 1133 and a second radial bearing 1132, are fitted onto the connecting shaft 122. This ensures the perpendicularity of the connecting shaft 122 relative to the crossbeam 111, preventing excessive swaying and misalignment of the connecting shaft 122, thereby ensuring that the gate 110 can always rotate smoothly.

[0065] Please refer to Figure 8 and Figure 10 The connecting shaft 122 may further include a third shaft segment 1223 (e.g., Figure 10 As shown), the third shaft segment 1223 is connected to the end of the first shaft segment 1221 that is away from the second shaft segment 1222, and the diameter of the third shaft segment 1223 is larger than the diameter of the first shaft segment 1221. The third shaft segment 1223 is used to connect the walking body 121. The bearing assembly 113 may also include a thrust bearing 1134 (e.g., Figure 8 As shown, the thrust bearing 1134 is sleeved on the outer periphery of the first shaft segment 1221 and fits against the end face of the third shaft segment 1223. When the traveling mechanism 120 has risen to its highest point relative to the gate 110 in the first direction F1, the thrust bearing 1134 can withstand the axial force from the gate 110 in the second direction F2, so that the gate 110 can rotate smoothly relative to the traveling mechanism 120.

[0066] When the traveling mechanism 120 moves to the uphill section of the fixed object, the traveling body 121 moves closer to the crossbeam 111 along the first direction F1, and the thrust bearing 1134 moves closer to the second radial bearing 1132 along the first direction F1.

[0067] When the traveling mechanism 120 moves to the downhill section of the fixed object, the traveling body 121 moves away from the crossbeam 111 along the second direction F2, and the thrust bearing 1134 moves away from the second radial bearing 1132 along the second direction F2.

[0068] Please refer to Figure 11The walking body 121 includes a housing assembly 1211, a third radial bearing 1213, and a fourth radial bearing 1214. The housing assembly 1211 is connected to the third shaft segment 1223 of the connecting shaft 122. The outer rings of both the third radial bearing 1213 and the fourth radial bearing 1214 are mounted on the housing assembly 1211, and their inner rings are sleeved on the outer circumference of the shaft segment 1231 of the limiting guide wheel 123. Thus, the limiting guide wheel 123 is rotatably connected to the housing assembly 1211 through the third radial bearing 1213 and the fourth radial bearing 1214. The inner rings of both the third radial bearing 1213 and the fourth radial bearing 1214 are clearance-fitted with the shaft segment 1231 of the limiting guide wheel 123, so that the limiting guide wheel 123 can move relative to the walking body 121 in the first direction F1 or the second direction F2.

[0069] Understandably, by configuring the limiting guide wheel 123 to move relative to the walking body 121 along the first direction F1 or the second direction F2, the maximum range of motion of the limiting guide wheel 123 in the first direction F1 and the second direction F2 can be increased. This can further avoid or reduce the problem of interference and jamming between the wheel body 1232 of the limiting guide wheel 123 and the guide rail 20. For example, when the walking mechanism 120 moves to an uphill section, the entire walking mechanism 120 moves along the first direction F1. The total displacement of the limiting guide wheel 123 in the first direction F1 is equal to the displacement of the walking body 121 along the first direction F1 plus the displacement of the limiting guide wheel 123 relative to the walking body 121 along the first direction F1. For example, when the walking mechanism 120 moves to a downhill section, the walking mechanism 120 moves as a whole along the second direction F2. The total displacement of the limiting guide wheel 123 in the second direction F2 is equal to the displacement of the walking body 121 along the second direction F2 plus the displacement of the limiting guide wheel 123 relative to the walking body 121 along the second direction F2.

[0070] In addition, two bearings, a third radial bearing 1213 and a fourth radial bearing 1214, are fitted on the shaft section 1231 of the limiting guide wheel 123. This ensures the perpendicularity of the limiting guide wheel 123 relative to the housing assembly 1211, prevents the limiting guide wheel 123 from shaking too much and becoming skewed, and ensures that the limiting guide wheel 123 can always roll smoothly on the guide rail 20.

[0071] Please refer to Figures 12 to 15 This application also provides a folding door 1, which includes the door device 10 described in any of the above embodiments.

[0072] The folding door 1 provided in this application is described below with reference to the accompanying drawings.

[0073] The folding door 1 includes a guide rail 20 and a door assembly 10. The door assembly 10 includes a door panel 110 and a traveling mechanism 120, with the door panel 110 rotatably connected to the traveling mechanism 120. The guide rail 20 is a strip-shaped structure used for fixed installation on a fixed object. The guide rail 20 is connected to the traveling mechanism 120 of the door assembly 10 and guides the traveling mechanism 120 to move along the extending direction of the guide rail 20.

[0074] For a folding door 1, the number of door body devices 10 can be one or more (such as 2, 3, 4, 5, 6, etc.). This application will only use multiple door body devices 10 as examples in the following description.

[0075] The door panels 110 of two adjacent door body devices 10 are rotatably connected. During the movement of the door body device 10 along the walking mechanism 120, the door panels 110 rotate relative to the walking mechanism 120, and the adjacent door panels 110 rotate relative to each other. Overall, this manifests as each door panel 110 folding or unfolding.

[0076] Please refer to Figure 12 and Figure 13 The folding door 1 may further include a drive device 30, a first door body 40, a rear door body 50, and a fixing device 60. The first door body 40 is rotatably connected to the first door row 110 among the plurality of door rows 110, and the rear door body 50 is rotatably connected to the last door row 110 among the plurality of door rows 110. The drive device 30 is rotatably connected to the first door body 40, and the fixing device 60 is rotatably connected to the rear door body 50. In short, the drive device 30, the first door body 40, the door rows 110, the rear door body 50, and the fixing device 60 are rotatably connected in sequence. It should be noted that both the first door body 40 and the rear door body 50 may or may not be rotatably connected to a traveling mechanism 120; this is not limited here.

[0077] Please refer to Figure 12 and Figure 13 The driving device 30 is movably mounted on a fixed object, and the fixing device 60 is fixedly installed on the fixed object. The folding door 1 may further include a fixed door body 70, which is spaced apart from the fixing device 60 and is fixedly installed on the fixed object. The driving device 30, the first door body 40, the door body device 10, and the rear door body 50 are located between the fixed door body 70 and the fixing device 60. The guide rail 20 can extend from the fixed door body 70 to the fixing device 60. Of course, in other embodiments, the folding door 1 may not include the aforementioned fixed door body 70.

[0078] The drive unit 30 can provide power to the first door body 40 to drive the first door body 40, multiple door panels 110, and tail door body 50 to fold or unfold. The first door body 40, multiple door panels 110, and tail door body 50 are collectively referred to as the door panel assembly below. When the drive unit 30 moves towards the fixing device 60, the door panel assembly, pushed by the drive unit 30, folds along the extension direction of the guide rail 20 towards the fixing device 60. Figure 14 and Figure 15 As shown). Furthermore, the folding state of folding door 1 can also be divided into a half-open state (as shown). Figure 14 (as shown) and fully open state (as shown) Figure 15 As shown), the so-called half-open state means not fully folded, and the so-called fully open state means fully folded. When the drive device 30 moves away from the fixing device 60, the door assembly unfolds away from the fixing device 60 along the extension direction of the guide rail 20 under the traction of the drive device 30 (as shown). Figure 12 and Figure 13 (As shown).

[0079] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. A door device, characterized in that, The door assembly includes: Gate; A traveling mechanism, disposed at the bottom of the gate and rotatably connected to it, is movably mounted on a fixed object and engages with a guide rail mounted on the fixed object, thereby enabling the traveling mechanism to drive the gate to move along the extension direction of the guide rail; and An elastic element is elastically connected to the gate and the traveling mechanism. When the traveling mechanism drives the gate to move along the extension direction of the guide rail, the traveling mechanism can move relative to the gate in a first direction under the action of an external force, or move relative to the gate in a second direction under the action of the elastic element; wherein, the first direction is the direction of the guide rail toward the gate, and the second direction is the opposite direction of the first direction.

2. The door device as described in claim 1, characterized in that, The walking mechanism includes a walking body, a connecting shaft, and a limiting guide wheel. The connecting shaft is fixed to the walking body and rotatably connected to the gate. The connecting shaft can move relative to the gate in the first direction or the second direction. The limiting guide wheel is rotatably connected to the walking body and can move along the extension direction of the guide rail.

3. The door device as described in claim 2, characterized in that, The opposite ends of the elastic element elastically abut against the gate and the walking body, respectively; Alternatively, the opposite ends of the elastic element may elastically abut against the gate and the connecting shaft, respectively.

4. The door device as described in claim 3, characterized in that, The opposite ends of the elastic element are respectively connected to the gate and the connecting shaft; The gate includes a crossbeam and abutment members. The connecting shaft passes through the crossbeam and can rotate relative to the crossbeam. The connecting shaft can move relative to the crossbeam in a first direction or a second direction. The abutment members are connected to the crossbeam and are located on the side of the crossbeam opposite to the walking body, corresponding to the connecting shaft. The elastic members are located inside the abutment members, and the opposite ends of the elastic members abut against the abutment members and the connecting shaft, respectively.

5. The door device as described in claim 4, characterized in that, The abutting member includes a skirt portion, an annular portion, and an abutting portion. The abutting portion is connected to the inner peripheral wall of the annular portion, the skirt portion is connected to the outer peripheral wall of the annular portion, and the skirt portion is connected to the crossbeam. The elastic element is disposed within the annular portion, with one end of the elastic element abutting against the abutting portion and the other end abutting against the connecting shaft.

6. The door device as described in claim 5, characterized in that, The abutting member further includes a columnar portion, which is located inside the annular portion and connected to the abutting portion. The elastic member is sleeved on the outer periphery of the columnar portion or the columnar portion is sleeved on the outer periphery of the elastic member.

7. The door device as described in claim 4, characterized in that, The connecting shaft includes a first shaft segment and a second shaft segment. The first shaft segment is rotatably connected to the crossbeam. The second shaft segment is connected to the end of the first shaft segment away from the walking body, and the diameter of the second shaft segment is smaller than the diameter of the first shaft segment. The elastic element is sleeved on the outer periphery of the second shaft segment and abuts against the first shaft segment.

8. The door device as described in claim 4, characterized in that, The gate also includes a bearing assembly, which includes a bearing housing, a first radial bearing, and a second radial bearing. The bearing housing is mounted on the crossbeam, and the first and second radial bearings are mounted inside the bearing housing. The first and second radial bearings are sleeved on the outer periphery of the connecting shaft and are clearance-fitted with the connecting shaft, so that the connecting shaft can move relative to the gate in the first or second direction.

9. The door device as described in any one of claims 2 to 8, characterized in that, The walking body includes a housing assembly, a third radial bearing, and a fourth radial bearing. The housing assembly is connected to the connecting shaft. The third and fourth radial bearings are mounted on the housing assembly and sleeved on the outer periphery of the limiting guide wheel. The limiting guide wheel is clearance-fitted with the third and fourth radial bearings so that the limiting guide wheel can move relative to the walking body in the first or second direction.

10. A folding door, characterized in that, The folding door includes: the door assembly as described in any one of claims 1 to 9.

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