Sliding door with supporting anti-falling mechanism

Abstract

The utility model discloses a sliding door with a supporting anti-falling mechanism. The sliding door comprises a door body, a door body bottom beam and the supporting anti-falling mechanism. The door body bottom beam is installed at the bottom of the door body, the supporting anti-falling mechanism is installed on the door body bottom beam, the supporting anti-falling mechanism comprises a driving device and a supporting assembly, and the driving device drives the supporting assembly to be folded towards one side of the door body bottom beam or stretch out towards the ground to be supported on the ground. Through the design of the lifting type supporting anti-falling mechanism, dynamic supporting of the door body before and after operation is achieved, the load of the door body in the hovering stage is effectively reduced, therefore, the problems of door body deformation and drooping caused by too large load are solved, and the service life of the door body is prolonged. In addition, the lifting type supporting anti-falling mechanism can rise before the door body runs, running obstacles caused by uneven road surfaces or ice and snow weather are avoided, and the adaptability and stability of the door body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding doors, in particular to a sliding door with a supporting anti-falling mechanism. Background Art

[0002] With the continuous development of modern production and processing technology, the existing production process and technology of floating doors are becoming more and more mature, making the door clearance larger and larger. However, it is common for the door to pause during opening and closing. Because the door is too long and too heavy, the hovering stage when it is not fully opened or closed is the period when the front and rear mechanisms of the door are most heavily loaded. In addition, the interference of external natural gusts of wind can cause the door to swing back and forth, and even bend, deform, or sag more seriously, thereby reducing its service life. The existing practice is to add fixed directional wheels to the bottom of the front end of the floating door body as support. Because it is a fixed directional wheel, in actual use, it often encounters local raised points on the road surface or icy and snowy weather that requires clearance before operation, which is very cumbersome.

[0003] Therefore, it is urgent to develop a sliding door with a support and anti-fall mechanism to solve the technical problem of reducing the load-bearing problem of the sliding door body and avoiding the technical problem of not being able to operate normally due to uneven road surface. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a sliding door with a support and anti-fall mechanism.

[0005] The purpose of the present utility model is achieved by adopting the following technical solution: a sliding door with a support and anti-fall mechanism, comprising a door body, a door body bottom beam, and a support and anti-fall mechanism; the door body bottom beam is installed at the bottom of the door body, and the support and anti-fall mechanism is installed on the door body bottom beam, and the support and anti-fall mechanism includes a driving device and a support assembly, and the driving device drives the support assembly to be retracted upward or extended to the ground and then supported on the ground.

[0006] Optionally, the bottom of the door body bottom beam has a notch opening downward, and the support anti-falling mechanism is directly installed in the notch of the door body bottom beam;

[0007] Alternatively, the support and anti-falling mechanism is installed at the bottom of the door body bottom beam through a connecting piece, and the connecting piece has a slot opening downward, and the support and anti-falling mechanism is directly installed in the slot of the connecting piece.

[0008] Optionally, the support anti-falling mechanism is installed on the side of the door body bottom beam through a connecting piece.

[0009] Optionally, the support and anti-falling mechanism includes a first support and anti-falling mechanism, which includes a first push rod assembly, a first main swing arm, and a first pivot rod. The first push rod assembly is fixedly installed in the door body bottom beam or the connecting member, and the first push rod assembly has a telescopic push rod head, which is hinged to one end of the first main swing arm, and the other end of the first main swing arm is a movable support end. The middle part of the first main swing arm is installed on the inner wall of the door body bottom beam or the connecting member through the first pivot rod;

[0010] The first push rod assembly serves as a driving device, and the first main swing arm serves as a supporting assembly. The first push rod assembly drives the telescopic push rod head to perform linear telescopic motion, thereby driving the first main swing arm to be retracted upward or extended toward the ground with the first pivot rod as the swing fulcrum and then supported on the ground.

[0011] Optionally, at least one set of bearing wheels is provided on the movable support end of the first main swing arm; the bearing wheels are directly mounted on the movable support end, or are mounted on the movable support end through a pulley connecting rod.

[0012] Optionally, the support and anti-falling mechanism includes a second support and anti-falling mechanism, and the second support and anti-falling mechanism includes a worm gear reduction motor, a first connecting rod, a second connecting rod, a second main swing arm, and a second pivot rod; the worm gear reduction motor is fixedly mounted on the door body bottom beam or the inner wall of the connecting piece, the power output end of the worm gear reduction motor is transmission-connected with one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the second main swing arm, the other end of the second main swing arm is a movable support end, and the middle part of the second main swing arm is mounted on the door body bottom beam or the inner wall of the connecting piece through the second pivot rod;

[0013] The worm gear reduction motor serves as a driving device, and the second main swing arm serves as a supporting component. The worm gear reduction motor rotates forward and reverse, driving the first connecting rod and the second connecting rod to move, thereby driving the second main swing arm to retract upward or extend toward the ground with the second pivot rod as the swing fulcrum and then be supported on the ground.

[0014] Optionally, at least one set of bearing wheels is provided on the movable support end of the second main swing arm; the bearing wheels are directly mounted on the movable support end, or are mounted on the movable support end through a pulley connecting rod.

[0015] Optionally, the support anti-falling mechanism includes a third support anti-falling mechanism, and the third support anti-falling mechanism includes a second push rod assembly, a third connecting rod, and a fourth connecting rod; the second push rod assembly is horizontally fixedly installed in the door body bottom beam or connecting piece by a fixing pin, and the second push rod assembly has a telescopic push rod head; the middle parts of the third connecting rod and the fourth connecting rod are hingedly connected to form an "X"-shaped connecting rod assembly, the upper end of the third connecting rod is fixedly installed on the door body bottom beam or connecting piece by a fixing pin, and the upper end fixing pin of the fourth connecting rod is movably installed in the limiting groove on the door body bottom beam or connecting piece, and the lower ends of the third connecting rod and the fourth connecting rod are movable support ends; the telescopic push rod head is transmission-connected to the upper end of the fourth connecting rod or the fixing pin connected to the upper end of the fourth connecting rod,

[0016] The second push rod assembly serves as a driving device, and the "X"-shaped connecting rod assembly serves as a supporting assembly. The second push rod assembly drives the telescopic push rod head to perform horizontal linear telescopic movement, thereby driving the "X"-shaped connecting rod assembly to be retracted upward or extended toward the ground with the middle as the rotation fulcrum and then supported on the ground.

[0017] Optionally, at least one set of bearing wheels is provided on the movable supporting ends of the third connecting rod and the fourth connecting rod.

[0018] Optionally, the support anti-falling mechanism includes a fourth support anti-falling mechanism, and the fourth support anti-falling mechanism includes a third push rod assembly, a fifth connecting rod, a sixth connecting rod, a seventh connecting rod, and an eighth connecting rod; the third push rod assembly is fixedly installed in the door body bottom beam or the connecting member through a fixing pin, and the third push rod assembly has a telescopic push rod head; the fifth connecting rod, the sixth connecting rod, the seventh connecting rod, and the eighth connecting rod are hingedly connected at their ends to form a quadrilateral connecting rod assembly, and the middle parts of the fifth connecting rod and the seventh connecting rod are fixedly installed on the door body bottom beam or the connecting member respectively through fixing pins, and the ends of the fifth connecting rod and the seventh connecting rod are movable support ends; the telescopic push rod head is transmission-connected to the hanging ear portion protruding from the upper end of the fifth connecting rod,

[0019] The third push rod assembly serves as a driving device, and the quadrilateral connecting rod assembly serves as a supporting assembly. The third push rod assembly drives the telescopic push rod head to perform a linear telescopic motion, thereby driving the quadrilateral connecting rod assembly to fold toward the slot or unfold and extend toward the ground with the fixed pin connected in the middle of the fifth connecting rod and the seventh connecting rod as the telescopic fulcrum and then supported on the ground.

[0020] Optionally, at least one set of bearing wheels is provided on the movable supporting ends of the fifth connecting rod and the seventh connecting rod.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. Dynamic support system: This application realizes dynamic support of the door body before and after operation through the design of a lifting support anti-fall mechanism, effectively reducing the load of the door body during the hovering stage, thereby reducing the deformation and sagging of the door body caused by excessive load.

[0023] 2. Reduce the impact of environmental factors: The lifting support anti-fall mechanism can rise before the door body operates, avoiding operation obstacles caused by uneven road surface or icy and snowy weather, and improving the adaptability and stability of the door body.

[0024] 3. Flexible support method: The support design of the support component is not limited to rolling wheels. Different support methods can be selected according to actual needs, which increases the flexibility and practicality of the design.

[0025] 4. Diverse extension structures and drive transmission modes: There are multiple options for the extension structure and drive transmission mode of the anti-fall mechanism, which can be customized according to different application scenarios and needs, improving the applicability and innovation of the product.

[0026] 5. Improve service life: By reducing the load on the door body during the hovering stage, the wear and deformation of the door body is effectively reduced, thereby extending the service life of the door body.

[0027] 6. Easy to operate: The design of the lifting support anti-fall mechanism simplifies the operation process of the door body, reduces the tedious operations caused by road problems, and improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural diagram of a sliding door with a support anti-falling mechanism according to a preferred embodiment 1 of the present invention;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0030] Figure 3 This is a schematic diagram of the supporting state of the first supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 1 of the present utility model;

[0031] Figure 4 This is a schematic diagram of the supporting state of the first supporting anti-falling mechanism in the preferred embodiment 1 of the present utility model;

[0032] Figure 5 This is a schematic diagram of the stowed state of the first supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 1 of the present utility model;

[0033] Figure 6 This is a schematic diagram of the stowed state of the first supporting anti-falling mechanism in the preferred embodiment 1 of the present utility model;

[0034] Figure 7This is a schematic diagram of the supporting state of the second supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 2 of the present utility model;

[0035] Figure 8 This is a schematic diagram of the supporting state of the second supporting anti-falling mechanism in the preferred embodiment 2 of the present utility model;

[0036] Figure 9 This is a schematic diagram of the stowed state of the second supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 2 of the present utility model;

[0037] Figure 10 This is a schematic diagram of the stowed state of the second support anti-falling mechanism in the preferred embodiment 2 of the present utility model;

[0038] Figure 11 This is a schematic diagram of the supporting state of the third supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 3 of the present utility model;

[0039] Figure 12 This is a schematic diagram of the supporting state of the third supporting anti-falling mechanism in the preferred embodiment 3 of the present utility model;

[0040] Figure 13 This is a schematic diagram of the stowed state of the third support anti-falling mechanism on the door bottom beam in the preferred embodiment 3 of the present utility model;

[0041] Figure 14 This is a schematic diagram of the stowed state of the third support anti-falling mechanism in the preferred embodiment 3 of the present utility model;

[0042] Figure 15 This is a schematic diagram of the supporting state of the fourth supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 4 of the present utility model;

[0043] Figure 16 This is a schematic diagram of the supporting state of the fourth supporting anti-falling mechanism in the preferred embodiment 4 of the present utility model;

[0044] Figure 17 This is a schematic diagram of the stowed state of the fourth supporting anti-falling mechanism on the door bottom beam in the preferred embodiment 4 of the present utility model;

[0045] Figure 18 This is a schematic diagram of the stowed state of the fourth support anti-falling mechanism in the preferred embodiment 4 of the present utility model;

[0046] Figure 19 This is a three-dimensional schematic diagram of a sliding door with a support anti-falling mechanism according to a fifth preferred embodiment of the present invention;

[0047] Figure 20 for Figure 19 A magnified schematic diagram of point B in the middle;

[0048] Figure 21This is a schematic diagram of a sliding door in which the anti-falling mechanism is installed on both sides of the bottom in a preferred embodiment 5 of the present invention;

[0049] Figure 22 This is a schematic diagram of a sliding door in which the anti-falling mechanism is installed at the bottom and side of a preferred embodiment 5 of the present invention.

[0050] In the picture:

[0051] 1. Door body;

[0052] 2. Door bottom beam; 21. Notch;

[0053] 3. Support the anti-fall mechanism;

[0054] 31. First support anti-fall mechanism; 311. First push rod assembly; 3111. Telescopic push rod head; 312. First main swing arm; 313. First pivot rod; 314. Bearing wheel; 315. Fixing pin; 316. Pulley connecting rod;

[0055] 32. Second support anti-fall mechanism; 321. Worm gear reduction motor; 322. First connecting rod; 323. Second connecting rod; 324. Second main swing arm; 325. Second pivot rod; 326. Bearing wheel; 327. Pulley connecting rod;

[0056] 33. Third support anti-fall mechanism; 331. Second push rod assembly; 3311. Telescopic push rod head; 332. Third connecting rod; 333. Fourth connecting rod; 334. Fixing pin; 335. Fixing pin; 336. Fixing pin; 337. Bearing wheel;

[0057] 34. Fourth support anti-fall mechanism; 341. Third push rod assembly; 3411. Telescopic push rod head; 342. Fifth connecting rod; 3421. Ear hook; 343. Sixth connecting rod; 344. Seventh connecting rod; 345. Eighth connecting rod; 346. Fixing pin; 347. Fixing pin; 348. Fixing pin; 349. Bearing wheel;

[0058] 4. Connecting piece; 41. Notch; 42. Limiting groove. DETAILED DESCRIPTION

[0059] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0060] like Figure 1-22As shown, the sliding door with a support and anti-fall mechanism of the present application includes a door body 1, a door body bottom beam 2, and a support and anti-fall mechanism 3; the door body bottom beam 2 is installed at the bottom of the door body 1, and the support and anti-fall mechanism 3 is installed on the door body bottom beam 2. The support and anti-fall mechanism 3 includes a driving device 31 and a support assembly 32. The driving device 31 drives the support assembly 32 to be retracted upward or extended to the ground and then supported on the ground. The present application realizes dynamic support of the door body before and after operation through the design of a lifting support and anti-fall mechanism, effectively reducing the load of the door body during the hovering stage, thereby reducing the deformation and sagging of the door body caused by excessive load.

[0061] This application designs at least two different installation configurations for sliding doors by using different installation positions for the support and anti-fall mechanism. Specifically, in the first installation configuration, the support and anti-fall mechanism is directly installed at the bottom of the door bottom beam, or is installed at the bottom of the door bottom beam via a connector, as in Examples 1-4. In the second installation configuration, the support and anti-fall mechanism is installed at the side of the door bottom beam via a connector, as in Example 5.

[0062] Example 1

[0063] like Figure 1-6 As shown, a sliding door with a support and anti-falling mechanism includes a door body 1, a door body bottom beam 2, and a support and anti-falling mechanism 3; the door body bottom beam 2 is installed at the bottom of the door body 1, and the support and anti-falling mechanism 3 is installed at the bottom of the door body bottom beam through a connecting member 4, and the door body bottom beam 2 has a groove 21 opening downward for storing and hiding the support and anti-falling mechanism 3. In this example, the connecting member 4 is designed as a quick-installation structure, and the support and anti-falling mechanism 3 can be pre-installed on the connecting member 4, and then the two can be quickly installed in the groove of the door body bottom beam 2.

[0064] Specifically, the connecting member 4 has a downwardly opening notch 41 for pre-installing the support and anti-fall mechanism 3. The support and anti-fall mechanism 3 is installed in the notch 21 of the connecting member 4. The support and anti-fall mechanism 3 includes a drive device and a support assembly. The drive device drives the support assembly to retract into the notch 41 or extend toward the ground to support it on the ground.

[0065] The present application realizes dynamic support of the door body 1 before and after operation through the design of the lifting support and anti-falling mechanism 3, effectively reducing the load on the door body 1 during the hovering phase, thereby reducing the deformation and sagging of the door body 1 caused by excessive load, and extending the service life of the door body 1. In addition, the lifting support and anti-falling mechanism 3 can be raised before the door body 1 operates, avoiding operational obstacles caused by uneven roads or icy and snowy weather, and improving the adaptability and stability of the door body 1.

[0066] The support and anti-fall mechanism 3 of the present application has multiple options for its extension structure and drive transmission mode, which can be customized according to different application scenarios and needs, thereby improving the applicability and innovation of the product. The support and anti-fall mechanism 3 of the present application lists four different support and anti-fall structures to achieve the telescopic lifting and lowering of the support assembly, thereby achieving the support effect on the door body 1. When the support rod assembly is retracted, the sliding door can be opened or closed normally; when the support rod assembly is extended, its end contacts the ground, supporting the door body 1.

[0067] Next, a specific implementation of the first support anti-falling mechanism 3 is introduced, such as Figure 3-6 As shown, the first support anti-fall mechanism 31 includes a first push rod assembly 311, a first main swing arm 312, and a first pivot rod 313. The first push rod assembly 311 is fixedly installed in the connecting member 4 through a fixing pin 315. The first push rod assembly 311 has a telescopic push rod head 3111, which is hinged to one end of the first main swing arm 312. The other end of the first main swing arm 312 is a movable support end. The middle part of the first main swing arm 312 is installed on the inner wall of the connecting member 4 through the first pivot rod 313.

[0068] The first push rod assembly 311 serves as a driving device, and the first main swing arm 312 serves as a supporting assembly. The first push rod assembly 311 drives the telescopic push rod head 3111 to perform a linear telescopic motion, thereby driving the first main swing arm 312 to retract toward the slot 41 or extend toward the ground with the first pivot rod 313 as the swing fulcrum and then be supported on the ground.

[0069] As a further preferred embodiment, at least one set of bearing wheels 314 is provided on the movable support end of the first main swing arm 312. In the present application, the first support anti-fall mechanism 31 has a flexible support method. The design of the bearing wheels 314 includes but is not limited to rolling wheels. Different support methods can be selected according to actual needs, thereby increasing the flexibility and practicality of the design.

[0070] Example 2

[0071] Compared with Example 1, the difference of Example 2 lies in the specific implementation method of the support anti-fall mechanism, and the remaining structures are the same as the corresponding structures and implementation principles of Example 1.

[0072] Next, the specific implementation of the second support anti-falling mechanism is introduced, such as Figure 7-10As shown, the support and anti-falling mechanism 3 includes a second support and anti-falling mechanism 32, and the second support and anti-falling mechanism 32 includes a worm gear reduction motor 321, a first connecting rod 322, a second connecting rod 323, a second main swing arm 324, and a second pivot rod 325; the worm gear reduction motor 321 is fixedly mounted on the inner wall of the connecting member 4, the power output end of the worm gear reduction motor 321 is transmission-connected to one end of the first connecting rod 322, the other end of the first connecting rod 322 is hinged to one end of the second connecting rod 323, the other end of the second connecting rod 323 is hinged to one end of the second main swing arm 324, the other end of the second main swing arm 324 is a movable support end, and the middle part of the second main swing arm 324 is mounted on the inner wall of the connecting member 4 through the second pivot rod 325;

[0073] The worm gear reduction motor 321 serves as a driving device, and the second main swing arm 324 serves as a supporting component. The worm gear reduction motor 321 rotates forward and reverse, driving the first connecting rod 322 and the second connecting rod 323 to move, thereby driving the second main swing arm 324 to retract toward the slot 41 or extend toward the ground with the second pivot rod 325 as the swing fulcrum and then be supported on the ground.

[0074] As a further preferred embodiment, at least one set of bearing wheels 326 is provided on the movable support end of the second main swing arm 324. In the present application, the second support anti-fall mechanism 32 has a flexible support method. The design of the bearing wheels 326 includes but is not limited to rolling wheels. Different support methods can be selected according to actual needs, increasing the flexibility and practicality of the design.

[0075] As a further preferred solution, the bearing wheel 314 / 326 is directly mounted on the movable support end, or is mounted on the movable support end through a pulley connecting rod 316 / 327.

[0076] Example 3

[0077] Compared with Example 1, the difference of Example 3 lies in the specific implementation method of the support anti-fall mechanism, and the remaining structures are the same as the corresponding structures and implementation principles of Example 1.

[0078] Next, a specific implementation of the third support anti-falling mechanism is introduced, such as Figure 11-14When the cam 331 is in the unlock state, the locking cam 332 is in the unlock state, and the lock cam 333 is in the unlock state, so the cam 333 is unlocked.

[0079] The second push rod assembly 331 serves as a driving device, and the "X"-shaped connecting rod assembly serves as a supporting assembly. The second push rod assembly 331 drives the telescopic push rod head 3311 to perform horizontal linear telescopic movement, thereby driving the "X"-shaped connecting rod assembly to retract toward the slot 41 or extend toward the ground with the middle as the rotation fulcrum and then support on the ground.

[0080] As a further preferred embodiment, at least one set of bearing wheels 337 is provided on the movable support ends of the third connecting rod 332 and the fourth connecting rod 333. In the present application, the third support anti-fall mechanism 33 has a flexible support method. The design of the bearing wheels 337 includes but is not limited to rolling wheels. Different support methods can be selected according to actual needs, which increases the flexibility and practicality of the design.

[0081] Example 4

[0082] Compared with Example 1, the difference of Example 4 lies in the specific implementation method of the support anti-fall mechanism, and the remaining structures are the same as the corresponding structures and implementation principles of Example 1.

[0083] Next, a specific implementation of the fourth support anti-falling mechanism is introduced, such as Figure 15-18As shown, the support anti-falling mechanism 3 includes a fourth support anti-falling mechanism 34, and the fourth support anti-falling mechanism 34 includes a third push rod assembly 341, a fifth connecting rod 342, a sixth connecting rod 343, a seventh connecting rod 344, and an eighth connecting rod 345; the third push rod assembly 341 is fixedly installed in the connecting member 4 by a fixing pin 346, and the third push rod assembly 341 has a telescopic push rod head 3411; the fifth connecting rod 342, the sixth connecting rod 343, the seventh connecting rod 344, and the eighth connecting rod 345 are hingedly connected at the head and tail to enclose a quadrilateral connecting rod assembly, and the middle parts of the fifth connecting rod 342 and the seventh connecting rod 344 are fixedly installed on the connecting member 4 respectively by fixing pins 347 / 348, and the ends of the fifth connecting rod 342 and the seventh connecting rod 344 are movable support ends; the telescopic push rod head 3411 is transmission connected to the hanging ear portion 3421 protruding from the upper end of the fifth connecting rod 342,

[0084] The third push rod assembly 341 serves as a driving device, and the quadrilateral connecting rod assembly serves as a supporting assembly. The third push rod assembly 341 drives the telescopic push rod head 3411 to perform a linear telescopic motion, thereby driving the quadrilateral connecting rod assembly to fold and retract toward the slot 41 or unfold and extend toward the ground with the fixed pin connected in the middle of the fifth connecting rod 342 and the seventh connecting rod 344 as the telescopic fulcrum and then supported on the ground.

[0085] As a further preferred embodiment, at least one set of bearing wheels 349 is provided on the movable support ends of the fifth connecting rod 342 and the seventh connecting rod 344. In the present application, the fourth support anti-fall mechanism 34 has a flexible support method. The design of the bearing wheels 349 includes but is not limited to rolling wheels. Different support methods can be selected according to actual needs, which increases the flexibility and practicality of the design.

[0086] Example 5

[0087] Compared with Example 1, the difference of Example 5 is that the specific implementation of the support anti-falling mechanism is different. The support anti-falling mechanism is installed on the side of the door bottom beam through the connecting member 4. Figure 19-22 As shown, the support and anti-fall mechanism can adopt a combination of one or more of the support and anti-fall mechanisms described in Examples 1-4, which will not be repeated here. In this embodiment, the support and anti-fall mechanism is designed on the side of the door body mainly to solve the installation problem of insufficient longitudinal depth of the bottom beam and insufficient installation space for the support and anti-fall mechanism, which has positive significance in practical applications.

[0088] The sliding door operates as follows: before the door body 1 moves, the support and anti-fall mechanism 3 is first raised, so that the support and anti-fall mechanism 3 is stored in the door body bottom beam 2 and is off the ground, and the door body 1 then starts to move. After the door body 1 stops moving, the support and anti-fall mechanism 3 is then extended and lowered to the ground, and the bearing wheel slides so that the bearing wheel contacts the ground, thereby supporting the door body 1.

[0089] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A sliding door with a support and anti-fall mechanism, characterized in that: It includes a door body, a door body bottom beam, and a support and anti-falling mechanism; the door body bottom beam is installed at the bottom of the door body, and the support and anti-falling mechanism is installed on the door body bottom beam. The support and anti-falling mechanism includes a driving device and a support assembly, and the driving device drives the support assembly to be retracted upward or extended to the ground and then supported on the ground.

2. The sliding door with a support and anti-falling mechanism according to claim 1, characterized in that: The bottom of the door body bottom beam has a notch opening downward, and the support anti-falling mechanism is directly installed in the notch of the door body bottom beam; Alternatively, the support and anti-falling mechanism is installed at the bottom of the door body bottom beam through a connecting piece, and the connecting piece has a slot opening downward, and the support and anti-falling mechanism is directly installed in the slot of the connecting piece.

3. The sliding door with a support and anti-falling mechanism according to claim 1, characterized in that: The support anti-falling mechanism is installed on the side of the door body bottom beam through a connecting piece.

4. The sliding door with a support and anti-falling mechanism according to claim 2 or 3, characterized in that: The support and anti-falling mechanism includes a first support and anti-falling mechanism, which includes a first push rod assembly, a first main swing arm, and a first pivot rod. The first push rod assembly is fixedly installed in the door body bottom beam or the connecting member, and the first push rod assembly has a telescopic push rod head, which is hinged to one end of the first main swing arm, and the other end of the first main swing arm is a movable support end. The middle part of the first main swing arm is installed on the inner wall of the door body bottom beam or the connecting member through the first pivot rod; The first push rod assembly serves as a driving device, and the first main swing arm serves as a supporting assembly. The first push rod assembly drives the telescopic push rod head to perform linear telescopic motion, thereby driving the first main swing arm to be retracted upward or extended toward the ground with the first pivot rod as the swing fulcrum and then supported on the ground.

5. The sliding door with a support and anti-falling mechanism according to claim 4, characterized in that: At least one set of bearing wheels is provided on the movable support end of the first main swing arm; the bearing wheels are directly mounted on the movable support end, or are mounted on the movable support end through a pulley connecting rod.

6. The sliding door with a support and anti-falling mechanism according to claim 2 or 3, characterized in that: The support and anti-falling mechanism includes a second support and anti-falling mechanism, and the second support and anti-falling mechanism includes a worm gear reduction motor, a first connecting rod, a second connecting rod, a second main swing arm, and a second pivot rod; the worm gear reduction motor is fixedly mounted on the door body bottom beam or the inner wall of the connecting piece, the power output end of the worm gear reduction motor is transmission-connected with one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the second main swing arm, the other end of the second main swing arm is a movable support end, and the middle part of the second main swing arm is mounted on the door body bottom beam or the inner wall of the connecting piece through the second pivot rod; The worm gear reduction motor serves as a driving device, and the second main swing arm serves as a supporting component. The worm gear reduction motor rotates forward and reverse, driving the first connecting rod and the second connecting rod to move, thereby driving the second main swing arm to retract upward or extend toward the ground with the second pivot rod as the swing fulcrum and then be supported on the ground.

7. The sliding door with a support and anti-falling mechanism according to claim 6, characterized in that: At least one set of bearing wheels is provided on the movable support end of the second main swing arm; the bearing wheels are directly mounted on the movable support end, or are mounted on the movable support end through a pulley connecting rod.

8. The sliding door with a support and anti-falling mechanism according to claim 2 or 3, characterized in that: The support and anti-falling mechanism includes a third support and anti-falling mechanism, and the third support and anti-falling mechanism includes a second push rod assembly, a third connecting rod, and a fourth connecting rod; the second push rod assembly is horizontally fixedly installed in the door body bottom beam or connecting piece by a fixing pin, and the second push rod assembly has a telescopic push rod head; the middle parts of the third connecting rod and the fourth connecting rod are hingedly connected to form an "X"-shaped connecting rod assembly, the upper end of the third connecting rod is fixedly installed on the door body bottom beam or connecting piece by a fixing pin, and the upper end fixing pin of the fourth connecting rod is movably installed in the limiting groove on the door body bottom beam or connecting piece, and the lower ends of the third connecting rod and the fourth connecting rod are movable support ends; the telescopic push rod head is transmission-connected to the upper end of the fourth connecting rod or the fixing pin connected to the upper end of the fourth connecting rod, The second push rod assembly serves as a driving device, and the "X"-shaped connecting rod assembly serves as a supporting assembly. The second push rod assembly drives the telescopic push rod head to perform horizontal linear telescopic motion, thereby driving the "X"-shaped connecting rod assembly to be retracted upward or extended toward the ground with the middle as a rotation fulcrum and then supported on the ground.

9. The sliding door with a support and anti-falling mechanism according to claim 8, characterized in that: At least one set of bearing wheels is provided on the movable supporting ends of the third connecting rod and the fourth connecting rod.

10. The sliding door with a support and anti-falling mechanism according to claim 2 or 3, characterized in that: The support and anti-falling mechanism includes a fourth support and anti-falling mechanism, and the fourth support and anti-falling mechanism includes a third push rod assembly, a fifth connecting rod, a sixth connecting rod, a seventh connecting rod, and an eighth connecting rod; the third push rod assembly is fixedly installed in the door body bottom beam or the connecting piece by a fixing pin, and the third push rod assembly has a telescopic push rod head; the fifth connecting rod, the sixth connecting rod, the seventh connecting rod, and the eighth connecting rod are hingedly connected at their ends to form a quadrilateral connecting rod assembly, and the middle parts of the fifth connecting rod and the seventh connecting rod are fixedly installed on the door body bottom beam or the connecting piece respectively by fixing pins, and the ends of the fifth connecting rod and the seventh connecting rod are movable support ends; the telescopic push rod head is transmission-connected to the hanging ear portion protruding from the upper end of the fifth connecting rod, The third push rod assembly serves as a driving device, and the quadrilateral connecting rod assembly serves as a supporting assembly. The third push rod assembly drives the telescopic push rod head to perform a linear telescopic motion, thereby driving the quadrilateral connecting rod assembly to fold toward the slot or unfold and extend toward the ground with the fixed pin connected in the middle of the fifth connecting rod and the seventh connecting rod as the telescopic fulcrum and then supported on the ground.

11. The sliding door with a support and anti-falling mechanism according to claim 10, characterized in that: At least one set of bearing wheels is provided on the movable supporting ends of the fifth connecting rod and the seventh connecting rod.

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