Synchronous door pulling device

Abstract

The invention relates to a synchronous door pulling device which is provided with a plurality of pulley rope lock sets, a plurality of rope locking pieces, a first movable door, a second movable door, a third movable door and a fixed door. The pulley rope lock set is provided with two pulleys and a rope. The pulley rope lock set is arranged on the second movable door and the third movable door. And the fourth rope locking piece locks the rope on the third movable door. And the rope on the second movable door is locked by the rope locking piece on the third movable door. And the rope on the third movable door is locked by the rope locking piece on the second movable door. And the rope on the second movable door is locked by the rope locking piece on the first movable door. Therefore, the whole sliding door can be opened and closed by moving any one of the movable doors. And the maximum communication doorway can be created by only one pulling step. And due to the arrangement of the pulley rope group, no noise is generated in the pulling process.

Description

Technical Field

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

[0002] Doors are commonly used in interior design to separate spaces. Sliding doors are doors that are set on tracks. Sliding doors usually have a fixed door and a movable door. The movable door is moved relative to the fixed door on the track by the user, achieving the effect of opening and closing the door.

[0003] The linked sliding door is a type of sliding door. The linked sliding door has two moving doors and a linkage device. The two moving doors can be linked by the linkage device. That is, when one of the moving doors is pulled, the other moving door can be driven to slide together.

[0004] Specifically, the linkage device has a gear and a rack. The two movable doors include a first movable door and a second movable door. The gear on the fixed door is meshed with the rack on the first movable door and the rack on the second movable door at the same time, so when one of the movable doors is pulled, the other movable door can be linked.

[0005] However, the linkage device of the prior art cannot make the fixed door linked. When all the door panels are concentrated on the same side to create a maximum connected doorway, even if the fixed door is a movable door, a step of moving the fixed door is required.

[0006] The gear and rack are locked on the door. After long-term use, the locking point will wear out, resulting in reduced linkage effect. In addition, the gear and rack will make noise during the pulling process. Summary of the invention

[0007] The present invention provides a synchronous sliding door device, which is mainly used to make all sliding doors move synchronously to open and close in one pulling step and create a doorway with maximum connectivity, and can reduce noise and structural wear during the pulling process.

[0008] To achieve the above purpose, a synchronous door sliding device is provided, which is arranged on a plurality of slide rails; the plurality of slide rails include a first slide rail, a second slide rail, and a third slide rail; the first slide rail, the second slide rail, and the third slide rail are parallel to each other and arranged in sequence; the synchronous door sliding device has:

[0009] A plurality of pulley rope groups, wherein the pulley rope groups include a first pulley rope group and a second pulley rope group; each pulley rope group has:

[0010] Two pulleys;

[0011] a rope, which is sleeved on the two pulleys; a direction from one of the two pulleys to the other pulley is a rope direction;

[0012] A plurality of rope locking members capable of locking the rope; the plurality of rope locking members include a first rope locking member, a second rope locking member, a third rope locking member, and a fourth rope locking member; each of the rope locking members has:

[0013] At least one rope placement hole, which penetrates the rope locking member in the direction of the rope; the rope is passed through at least one of the rope placement holes;

[0014] At least one rope locking hole, which is respectively arranged on the rope locking member and communicates with at least one rope placing hole;

[0015] At least one locking member, which is respectively passed through at least one of the rope locking holes and abuts against the rope;

[0016] a fixed door locked to the slide rail;

[0017] A first movable door, which is movably connected to the first slide rail and has:

[0018] A first groove is disposed on the upper side of the first movable door and extends along the direction of the rope, and the first groove has:

[0019] Two first side walls, which are parallel to the rope direction;

[0020] A first bottom side wall connecting the two first side walls;

[0021] Two first extension portions, which are disposed on the two first side walls and extend toward each other;

[0022] A first extension piece is disposed in the first groove and is located at an end of the upper side of the first movable door adjacent to the fixed door; the first extension piece has:

[0023] Two first protrusions, which protrude toward the two first side walls respectively;

[0024] at least one first locking hole, which respectively penetrates through the first extension piece;

[0025] A second movable door is movably connected to the second slide rail, and the first pulley rope set is arranged on the second movable door; the second movable door has:

[0026] A second groove is disposed on the upper side of the second movable door and extends along the direction of the rope, and the second groove has:

[0027] Two second side walls, which are parallel to the rope direction;

[0028] A second bottom side wall connecting the two second side walls;

[0029] Two second extension portions, which are disposed on the two second side walls and extend toward each other;

[0030] Two second extension members are respectively arranged in the second groove and located at two ends of the upper side surface of the second movable door along the direction of the rope; the two pulleys of the first pulley rope group are respectively arranged on the two second extension members; each second extension member has:

[0031] Two second protrusions, which protrude toward the two second side walls respectively;

[0032] at least one second locking hole, each of which passes through the second extension piece;

[0033] A third movable door is movably connected to the third slide rail, and the second pulley rope set is arranged on the third movable door; the third movable door has:

[0034] A third groove is provided on the upper side of the third movable door and extends along the direction of the rope, and the third groove has:

[0035] two third side walls, which are parallel to the rope direction;

[0036] a third bottom side wall connecting the two third side walls;

[0037] Two third extension portions, which are disposed on the two third side walls and extend toward each other;

[0038] Two third extension members are respectively arranged in the third groove and located at two ends of the upper side surface of the third movable door along the direction of the rope; the two pulleys of the second pulley rope group are respectively arranged on the two third extension members; each of the third extension members has:

[0039] Two third protrusions, which protrude toward the two third side walls respectively;

[0040] at least one third locking hole respectively passing through the third extension piece;

[0041] A plurality of support members, at least one of the support members is disposed in at least one of the first locking holes of the first extension member and contacts the first bottom side wall, so that the two first protrusions of the first extension member are in contact with the two first extensions respectively; at least one of the support members is disposed in at least one of the second locking holes of each of the second extension members and contacts the second bottom side wall, so that the two second protrusions of the two second extension members are in contact with the two second extensions respectively; at least one of the support members is disposed in at least one of the third locking holes of the two third extension members and contacts the third bottom side wall, so that the two protrusions of the two third extension members are in contact with the two third extensions respectively;

[0042] The fourth rope locking member is locked beside the third slide rail close to the fixed door, and locks the rope of the second pulley rope group on the third movable door; the third rope locking member is locked to one of the third extension members on the third movable door away from the fixed door, and locks the rope of the first pulley rope group on the second movable door; the second rope locking member is locked to one of the second extension members on the second movable door adjacent to the fixed door, and locks the rope of the second pulley rope group on the third movable door; the first rope locking member is locked to the first extension member, and locks the rope of the first pulley rope group on the second movable door.

[0043] Furthermore, each of the support members has:

[0044] A non-slip portion is disposed at the end of the support member and contacts the first bottom side wall, the second bottom side wall or the third bottom side wall.

[0045] Furthermore, one of the second extension pieces is away from the fixed door, and one of the second extension pieces extends in the direction of the rope to protrude from the upper side of the second movable door; one of the third extension pieces is away from the fixed door, and one of the third extension pieces extends in the direction of the rope to protrude from the upper side of the third movable door.

[0046] Furthermore, at least one of the second extension members has:

[0047] A long hole;

[0048] a movable locking member, which is disposed in the long hole and can selectively move in the long hole and lock on the extension member; wherein one of the pulleys is locked on the movable locking member;

[0049] An adjusting piece is passed through the extending piece and connected to the movable locking piece.

[0050] Furthermore,

[0051] At least one of the second extensions has:

[0052] A fourth locking hole extending in the direction of the rope and disposed on the second extension member and connected to the long hole;

[0053] The movable locking member has:

[0054] A movable locking hole is extended in the direction of the rope and penetrates the movable locking piece; the adjusting piece is penetrated in the fourth locking hole and the movable locking hole.

[0055] The present invention can be further extended to a synchronous sliding door device having more than four movable doors, which is arranged on a plurality of slide rails; the plurality of slide rails include a first slide rail, a second slide rail, at least a fourth slide rail, and a third slide rail; the slide rails are parallel to each other and arranged in sequence; the synchronous sliding door device has:

[0056] A plurality of pulley rope groups, wherein the pulley rope groups include a first pulley rope group, a second pulley rope group, and at least a third pulley rope group; each pulley rope group has:

[0057] Two pulleys;

[0058] a rope, which is sleeved on the two pulleys; a direction from one of the two pulleys to the other pulley is a rope direction;

[0059] A plurality of rope locking members capable of locking the rope; the plurality of rope locking members include a first rope locking member, a second rope locking member, a third rope locking member, a fourth rope locking member, and a plurality of fifth rope locking members; each of the rope locking members has:

[0060] At least one rope placement hole, which penetrates the rope locking member in the direction of the rope; the rope is passed through at least one of the rope placement holes;

[0061] At least one rope locking hole, which is respectively arranged on the rope locking member and communicates with at least one rope placing hole;

[0062] At least one locking member, which is respectively passed through at least one of the rope locking holes and abuts against the rope;

[0063] a fixed door locked to the slide rail;

[0064] A first movable door, which is movably connected to the first slide rail and has:

[0065] A first groove is disposed on the upper side of the first movable door and extends along the direction of the rope, and the first groove has:

[0066] Two first side walls, which are parallel to the rope direction;

[0067] A first bottom side wall connecting the two first side walls;

[0068] Two first extension portions, which are disposed on the two first side walls and extend toward each other;

[0069] A first extension piece is disposed in the first groove and is located at an end of the upper side of the first movable door adjacent to the fixed door; the first extension piece has:

[0070] Two first protrusions, which protrude toward the two first side walls respectively;

[0071] at least one first locking hole, which respectively penetrates through the first extension piece;

[0072] A second movable door is movably connected to the second slide rail, and the first pulley rope set is arranged on the second movable door; the second movable door has:

[0073] A second groove is disposed on the upper side of the second movable door and extends along the direction of the rope, and the second groove has:

[0074] Two second side walls, which are parallel to the rope direction;

[0075] A second bottom side wall connecting the two second side walls;

[0076] Two second extension portions, which are disposed on the two second side walls and extend toward each other;

[0077] Two second extension members are respectively arranged in the second groove and located at two ends of the upper side surface of the second movable door along the direction of the rope; the two pulleys of the first pulley rope group are respectively arranged on the two second extension members; each second extension member has:

[0078] Two second protrusions, which protrude toward the two second side walls respectively;

[0079] at least one second locking hole, each of which passes through the second extension piece;

[0080] A third movable door is movably connected to the third slide rail, and the second pulley rope set is arranged on the third movable door; the third movable door has:

[0081] A third groove is provided on the upper side of the third movable door and extends along the direction of the rope, and the third groove has:

[0082] two third side walls, which are parallel to the rope direction;

[0083] a third bottom side wall connecting the two third side walls;

[0084] Two third extension portions, which are disposed on the two third side walls and extend toward each other;

[0085] Two third extension members are respectively arranged in the third groove and located at two ends of the upper side surface of the third movable door along the direction of the rope; the two pulleys of the second pulley rope group are respectively arranged on the two third extension members; each of the third extension members has:

[0086] Two third protrusions, which protrude toward the two third side walls respectively;

[0087] at least one third locking hole respectively passing through the third extension piece;

[0088] At least one fourth moving door; each of the fourth moving doors is movably connected to each of the fourth slide rails, and each of the third pulley rope sets is respectively arranged on each of the fourth moving doors; each of the fourth moving doors is located between the third moving door and the second moving door, and each has:

[0089] A fourth groove is provided on the upper side of the fourth movable door and extends along the direction of the rope and has:

[0090] two fourth side walls, which are parallel to the rope direction;

[0091] a fourth bottom side wall connecting the two fourth side walls;

[0092] Two fourth extension portions, which are disposed on the two fourth side walls and extend toward each other;

[0093] Two fourth extension members are respectively arranged in the fourth groove and located at two ends of the upper side surface of the fourth movable door along the direction of the rope; the two pulleys of one of the third pulley rope sets are respectively arranged on the two fourth extension members; each of the fourth extension members has:

[0094] Two fourth protrusions, which protrude toward the two fourth side walls respectively;

[0095] at least one fourth locking hole, each of which passes through the fourth extension piece;

[0096] A plurality of support members, at least one of the support members is disposed in at least one of the first locking holes of the first extension member and contacts the first bottom side wall, so that the two first protrusions of the first extension member are in contact with the two first extensions respectively; at least one of the support members is disposed in at least one of the second locking holes of each of the second extension members and contacts the second bottom side wall, so that the two second protrusions of the two second extension members are in contact with the two second extensions respectively; at least one of the support members is disposed in at least one of the third locking holes of the two third extension members and contacts the third bottom side wall, so that the two protrusions of the two third extension members are in contact with the two third extensions respectively; at least one of the support members is disposed in at least one of the fourth locking holes of the two fourth extension members and contacts the fourth bottom side wall, so that the two protrusions of the two fourth extension members are in contact with the two fourth extensions respectively;

[0097] Each of the fifth rope lock members is respectively locked on the two fourth extension members of each of the fourth movable doors; wherein each of the fourth movable doors which is not adjacent to the third movable door or the second movable door respectively uses one of the fifth rope lock members which is far away from the fixed door to lock the rope of the third pulley rope group on the fourth movable door which is adjacent to itself and far away from the fixed door, and respectively uses one of the fifth rope lock members which is close to the fixed door to lock the rope of the third pulley rope group on the fourth movable door which is adjacent to itself and far away from the fixed door;

[0098] The fourth rope locking member is locked to the sliding rail close to the fixed door, and locks the rope of the second pulley rope group on the third moving door; the third rope locking member is locked to one of the third extension members on the third moving door away from the fixed door, and locks the rope of the third pulley rope group adjacent to the third moving door; one of the fifth rope locking members on the fourth moving door adjacent to the third moving door and close to the fixed door locks the rope of the second pulley rope group; one of the fifth rope locking members on the fourth moving door adjacent to the third moving door and away from the fixed door locks the rope of the third pulley rope group of an adjacent fourth moving door; the second rope locking member is locked to one of the second extension members on the second moving door adjacent to the fixed door, and locks the rope of the third pulley rope group on the adjacent fourth moving door; the first rope locking member is locked to the first extension member, and locks the rope of the first pulley rope group on the second moving door.

[0099] Through the above structure, the advantage of the present invention is that the entire sliding door can be opened and closed by moving any of the movable doors. And only one pulling step is required to create the largest connecting door. The setting of the pulley rope group makes it possible to avoid noise during the pulling process. And the lock rope member and the pulley are both fixed on the extension member, and the extension member is fixed to the door with a support member. If the lock rope member and the pulley and the extension member are worn out due to long-term use, only the extension member needs to be replaced without damaging the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0100] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0101] Figure 2 It is a schematic top view of the sliding door of the present invention.

[0102] Figure 3 It is a three-dimensional schematic diagram of the rope locking member of the present invention.

[0103] Figure 4 It is a cross-sectional schematic diagram of the rope locking member of the present invention.

[0104] Figure 5 It is another stereoscopic schematic diagram of the rope locking member of the present invention.

[0105] Figure 6 It is a cross-sectional schematic diagram of the extension piece of the present invention being tightly fixed in the groove.

[0106] Figure 7 It is a top view schematically showing an extension member protruding from a movable door according to the present invention.

[0107] Figure 8 It is a top view schematically showing the extension member of the present invention that does not protrude from the movable door.

[0108] Fig. 9 It is a three-dimensional schematic diagram of four movable doors of the present invention.

[0109] In the figure:

[0110] C: slide rail; C1: first slide rail; C2: second slide rail; C3: third slide rail; C4: fourth slide rail; D: rope direction;

[0111] 10: pulley rope group; 10a: first pulley rope group; 10b: second pulley rope group; 10c: third pulley rope group; 11: pulley; 12: rope;

[0112] 20: rope locking member; 20a: first rope locking member; 20b: second rope locking member; 20c: third rope locking member; 20d: fourth rope locking member; 20e: fifth rope locking member; 21: rope placement hole; 22: rope locking hole; 23: locking member;

[0113] 30: Fixed door;

[0114] 40a: first movable door; 41a: first groove; 411a: first side wall; 412a: first bottom side wall; 413a: first extension; 42a: first extension piece; 421a: first protrusion; 422a: first locking hole; 40b: second movable door; 41b: second groove; 411b: second side wall; 412b: second bottom side wall; 413b: second extension; 421b: second protrusion; 422b: second locking hole; 423: long hole; 4 24: movable locking member; 425: adjusting member; 426: fourth locking hole; 427: movable locking hole; 40c: third movable door; 41c: third groove; 411c: third side wall; 412c: third bottom side wall; 413c: third extension portion; 42c: third extension member; 421c: third protrusion; 422c: third locking hole; 40d: fourth movable door; 41d: fourth groove; 42d: fourth extension member; 43: supporting member; 431: anti-slip portion. DETAILED DESCRIPTION

[0115] The following is a further description of the technical means adopted by the present invention to achieve the predetermined purpose of the invention with reference to the accompanying drawings and preferred embodiments of the present invention.

[0116] First, please refer to Figure 1 and Figure 2 The present invention provides a synchronous sliding door device, which is disposed on a plurality of slide rails C. The plurality of slide rails C include a first slide rail C1, a second slide rail C2, and a third slide rail C3; the first slide rail C1, the second slide rail C2, and the third slide rail C3 are parallel to each other and arranged in sequence.

[0117] The synchronous sliding door device comprises a plurality of pulley rope groups 10, a plurality of rope locking members 20, a fixed door 30, a first movable door 40a, a second movable door 40b, and a third movable door 40c.

[0118] The plurality of pulley rope groups 10 include a first pulley rope group 10a and a second pulley rope group 10b. The pulley rope group 10 has two pulleys 11 and a rope 12. The rope 12 is sleeved on the two pulleys 11. The direction from one of the two pulleys 11 to the other pulley 11 is a rope direction D.

[0119] Please refer to Figure 3 , Figure 4 and Figure 5 . The rope locking member 20 can lock the rope 12. The plurality of rope locking members 20 include a first rope locking member 20a, a second rope locking member 20b, a third rope locking member 20c, and a fourth rope locking member 20d. Each rope locking member 20 has at least one rope placement hole 21, at least one rope locking hole 22, and at least one locking member 23. Each rope placement hole 21 penetrates the rope locking member 20 in the rope direction D. The rope 12 is also penetrated through the rope placement hole 21. Each rope locking hole 22 is respectively arranged on the rope locking member 20 and connected to each rope placement hole 21. Each locking member 23 is respectively penetrated through each rope locking hole 22 and abuts against the rope 12. In this embodiment, each rope locking member 20 has two rope placement holes 21, two rope locking holes 22, and two locking members 23. The locking member 23 is a screw, which is screwed into the rope locking hole 22. The locking member 23 and the inner wall surface of the rope placement hole 21 tightly clamp the rope 12 so that the clamped rope 12 cannot move relative to the rope locking member 20 .

[0120] Please refer to Figure 1 , Figure 2 ,and Figures 6 to 8 The fixed door 30 is locked on the slide rail C.

[0121] The first movable door 40a is movably connected to the first slide rail C1 and has a first groove 41 and a first extending member 42a.

[0122] The first groove 41a is disposed on the upper side of the first movable door 40a and extends along the rope direction D. The first groove 41a has two first side walls 411a, a first bottom side wall 412a, and two first extensions 413a. The first side wall 411a is parallel to the rope direction D. The first bottom side wall 412a connects the two first side walls 411a. The two first extensions 413a are disposed on the two first side walls 411a and extend toward each other.

[0123] The first extension member 42a is respectively disposed in the first groove 41a and is located at an end of the upper side surface of the first movable door 40a adjacent to the fixed door 30. The first rope locking member 20a is locked on the first extension member 42a. The first extension member 42a has two first protruding portions 421a and at least one first locking hole 422a. The two first protruding portions 421a protrude toward the two first side walls 411a respectively. Each first locking hole 422a passes through the first extension member 42a.

[0124] The second movable door 40b is movably connected to the second slide rail C2. The first pulley rope set 10a is disposed on the second movable door 40b. The second movable door 40b has a second groove 41b and a second extension member 42b.

[0125] The second groove 41b is disposed on the upper side of the second movable door 40b and extends along the rope direction D. The second groove 41b has two second side walls 411b, a second bottom side wall 412b, and two second extensions 413b. The second side wall 411b is parallel to the rope direction D. The second bottom side wall 412b connects the two second side walls 411b. The two second extensions 413b are disposed on the two second side walls 411b and extend toward each other.

[0126] The two second extension members 42b are respectively arranged in the second groove 41b, and are located at the two ends of the upper side surface of the second movable door 40b along the rope direction D. The two pulleys 11 of the first pulley rope assembly 10a are respectively arranged on the two second extension members 42b. The second extension member 42b has two second protrusions 421b and at least one second locking hole 422b. The two second protrusions 421b protrude toward the two second side walls 411b respectively. Each second locking hole 422b passes through the second extension member 42b.

[0127] At least one second extension member 42b has a long hole 423, a movable locking member 424, an adjusting member 425, and a fourth locking hole 426. The movable locking member 424 is disposed in the long hole 423, and can selectively move and lock on the second extension member 42b in the long hole 423. The movable locking member 424 has a movable locking hole 427. The movable locking hole 427 extends and penetrates the movable locking member 424 in the rope direction D. One of the pulleys 11 of the first pulley rope group 10a is locked on the movable locking member 424, and the adjusting member 425 penetrates the fourth locking hole 426 and the movable locking hole 427. Through the above structure, the pulley 11 on the movable locking member 424 can adjust the fixed position along the rope direction D, thereby adjusting the tightness of the rope 12. In this embodiment, the second extension member 42b far away from the fixed door 30 has the above structure, and in other embodiments, the second extension member 42b adjacent to the fixed door 30 can also be provided with the above structure.

[0128] The third movable door 40c is movably connected to the third slide rail C3. The second pulley rope set 10b is disposed on the third movable door 40c. The third movable door 40c has a third groove 41c and a third extension member 42c.

[0129] The third groove 41c is disposed on the upper side of the third movable door 40c and extends along the rope direction D. The third groove 41c has two third side walls 411c, a third bottom side wall 412c, and two third extensions 413c. The third side wall 411c is parallel to the rope direction D. The third bottom side wall 412c connects the two third side walls 411c. The two third extensions 413c are disposed on the two third side walls 411c and extend toward each other.

[0130] The two third extension members 42c are respectively arranged in the third groove 41c, and are located at the two ends of the upper side surface of the third movable door 40c along the rope direction D. The two pulleys 11 of the second pulley rope assembly 10b are respectively arranged on the two third extension members 42c. The third extension member 42c has two third protrusions 421c and at least one third locking hole 422c. The two third protrusions 421c protrude toward the two third side walls 411c respectively. Each third locking hole 422c passes through the third extension member 42c.

[0131] At least one third extension member 42c has a long hole 423, a movable locking member 424, an adjusting member 425, and a fourth locking hole 426. The movable locking member 424 is disposed in the long hole 423, and can selectively move in the long hole 423 and be locked on the extension member. The movable locking member 424 has a movable locking hole 427. The movable locking hole 427 extends and penetrates the movable locking member 424 in the rope direction D. One of the pulleys 11 is locked on the movable locking member 424, and the adjusting member 425 is penetrated in the fourth locking hole 426 and the movable locking hole 427.

[0132] Each support member 43 is respectively inserted into the first locking hole 422a of the first extension member 42a, the second locking holes 422b of the second extension member 42b, and the third locking holes 422c of the third extension member 42c. Each support member 43 has a non-slip portion 431. The non-slip portion 431 is located at the end of the support member 43. The support member 43 makes the two protrusions 421a, 421b, 421c of each extension member 42a, 42b, 42c contact with the two extensions 413a, 413b, 413c of the grooves 41a, 41b, 41c on each movable door 40a, 40b, 40c. The non-slip portion 431 on the support member 43 contacts with each bottom side wall 412a, 412b, 412c. Therefore, the support member 43 tightly fixes each extension member 42a, 42b, 42c in the groove 41a, 41b, 41c on each movable door 40a, 40b, 40c.

[0133] In this embodiment, one of the second extension pieces 42b is away from the fixed door 30 and extends in the rope direction D to protrude from the upper side of the second movable door 40b. One of the third extension pieces 42c is away from the fixed door 30 and extends in the rope direction D to protrude from the upper side of the third movable door 40c. In other embodiments, the extension pieces 42b, 42c adjacent to the fixed door 30 or the extension pieces 42b, 42c at both ends may extend to protrude from the upper side of the movable doors 40b, 40c. Thus, the distance between the two pulleys 11 of each pulley rope assembly 10 and the length of the rope 12 are extended, so that the movable range of the movable door is more complete.

[0134] The fourth rope lock member 20d is locked to the slide rail C and close to the fixed door 30. The fourth rope lock member 20d locks the rope 12 on the third movable door 40c. The third rope lock member 20c is locked to one of the third extension members 42c on the third movable door 40c away from the fixed door 30. The third rope lock member 20c locks the rope 12 on the second movable door 40b. The second rope lock member 20b is locked to one of the second extension members 42b on the second movable door 40b adjacent to the fixed door 30. The second rope lock member 20b locks the rope 12 on the third movable door 40c. The first rope lock member 20a locks the rope 12 on the second movable door 40b.

[0135] When the synchronous sliding door device is to be opened, the following takes pulling the first sliding door 40a as an example. Figure 2The words such as clockwise and counterclockwise are used for reference only and do not refer to absolute directions. In addition, the ropes of the pulley rope group installed on the moving door will be directly called ropes on the moving door, such as the rope 12 of the first pulley rope group 10a on the second moving door 40b will be directly called rope 12 on the second moving door 40b. When the first moving door 40a is pulled toward the fixed door 30, the first rope lock member 20a will drive the rope 12 on the clamped second moving door 40b, so that the rope 12 on the second moving door 40b moves clockwise, and the first moving door 40a will be relatively close to the second moving door 40b. At this time, the third rope lock member 20c clamping the rope 12 on the second moving door 40b will make the third moving door 40c relatively close to the second moving door 40b because the rope 12 on the second moving door 40b moves clockwise. Since the third moving door 40c is relatively close to the second moving door 40b, the second rope lock member 20b pulls the rope 12 on the third moving door 40c to make the third moving door 40c move clockwise, and the rope 12 on the third moving door 40c clamped by the fourth rope lock member 20d fixed to the slide rail C will be relatively away from the pulley 11 on the third moving door 40c that is away from the fixed door 30. Then the third moving door 40c will be relatively close to the fixed door 30. Through the above action, the first moving door 40a, the second moving door 40b, and the third moving door 40c will be synchronously close to each other until they are completely overlapped on the fixed door 30. On the contrary, when the synchronous sliding door device is closed, the first moving door 40a is pulled away from the fixed door 30, and each rope 12 moves counterclockwise, and all the moving doors will be synchronously away from each other. In addition, the present invention can pull any moving door to pull the ropes 12 on all moving doors to achieve the opening and closing of the synchronous sliding door device.

[0136] Please refer to Fig. 9 . In other embodiments, the synchronous sliding door device further has at least one fourth sliding door 40d. The slide rail C further includes at least one fourth sliding rail C4. Each fourth sliding rail C4 is arranged between the second sliding rail C2 and the third sliding rail C3. The fourth sliding door 40d is similar in structure to the aforementioned second sliding door 40b, having a similar fourth groove 41d and similar two fourth extension members 42d. The locking rope member further includes a plurality of fifth locking rope members 20e. Each fifth locking rope member 20e is respectively locked to the two fourth extension members 42d of each fourth sliding door 40d. The pulley rope group 10 further includes more than one third pulley rope group 10c. The two pulleys 11 of the third pulley rope group 10c are respectively arranged on the two fourth extension members 42d of each fourth sliding door 40d.

[0137] In order to reduce the complexity of the following description, some simplified descriptions are adopted. For example, the fifth rope locking member 20e locks the rope 12 of the adjacent third pulley rope group 10c, which means locking the rope 12 of the third pulley rope group 10c on the other adjacent fourth movable door 40d, and there is absolutely no meaning that the fifth rope locking member 20e locks the rope on the same movable door as itself.

[0138] Among them, each fourth movable door 40d that is not adjacent to the third movable door 40c or the second movable door 40b respectively locks the rope 12 of the third pulley rope group 10c adjacent to itself and away from the fixed door 30 with the fifth rope locking member 20e away from the fixed door 30, and respectively locks the rope 12 of the third pulley rope group 10c adjacent to itself and away from the fixed door 30 with the fifth rope locking member 20e close to the fixed door 30.

[0139] The fourth rope locking member 20d is locked to the slide rail C and locks the rope 12 of the second pulley rope group 10b on the third movable door 40c; the third rope locking member 20c is locked to one of the third extension members 42c on the third movable door 40c away from the fixed door 30 and locks the rope 12 of the third pulley rope group 10c adjacent to the third movable door 40c; the fifth rope locking member 20e adjacent to the third movable door 40c and close to the fixed door 30 locks the rope 12 of the second pulley rope group 10b; The fifth rope lock member 20e adjacent to the third movable door 40c and away from the fixed door 30 locks the rope 12 of the adjacent third pulley rope group 10c; the second rope lock member 20b is locked on one of the second extension members 42b adjacent to the fixed door 30 on the second movable door 40b, and locks the rope 12 of the adjacent third pulley rope group 10c; the first rope lock member 20a is locked on the first extension member 42a, and locks the rope 12 of the first pulley rope group 10a on the second movable door 40b. Therefore, the present invention can set the number of fourth movable doors 40d according to space requirements.

[0140] The advantage of the present invention is that the entire sliding door can be opened and closed by moving any of the movable doors. And only one pulling step is required to create the largest connecting door. The arrangement of the pulley rope group makes it possible to avoid noise during the pulling process. The lock rope member and the pulley are both fixed to the extension member, and the extension member is fixed to the door by a support member. If the lock rope member and the pulley wear out from the extension member due to long-term use, only the extension member needs to be replaced without damaging the door.

[0141] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A synchronous sliding door device, characterized in that: The synchronous door sliding device is arranged on a plurality of slide rails; the plurality of slide rails include a first slide rail, a second slide rail, and a third slide rail; the first slide rail, the second slide rail, and the third slide rail are parallel to each other and arranged in sequence; the synchronous door sliding device has: A plurality of pulley rope groups, wherein the pulley rope groups include a first pulley rope group and a second pulley rope group; each pulley rope group has: Two pulleys; a rope, which is sleeved on the two pulleys; a direction from one of the two pulleys to the other pulley is a rope direction; A plurality of rope locking members capable of locking the rope; the plurality of rope locking members include a first rope locking member, a second rope locking member, a third rope locking member, and a fourth rope locking member; each of the rope locking members has: At least one rope placement hole, which penetrates the rope locking member in the direction of the rope; the rope is passed through at least one of the rope placement holes; At least one rope locking hole, which is respectively arranged on the rope locking member and communicates with at least one rope placing hole; At least one locking member, which is respectively passed through at least one of the rope locking holes and abuts against the rope; a fixed door locked to the slide rail; A first movable door, which is movably connected to the first slide rail and has: A first groove is disposed on the upper side of the first movable door and extends along the direction of the rope, and the first groove has: Two first side walls, which are parallel to the rope direction; A first bottom side wall connecting the two first side walls; Two first extension portions, which are disposed on the two first side walls and extend toward each other; A first extension piece is disposed in the first groove and is located at an end of the upper side of the first movable door adjacent to the fixed door; the first extension piece has: Two first protrusions, which protrude toward the two first side walls respectively; at least one first locking hole, which respectively penetrates through the first extension piece; A second movable door is movably connected to the second slide rail, and the first pulley rope set is arranged on the second movable door; the second movable door has: A second groove is disposed on the upper side of the second movable door and extends along the direction of the rope, and the second groove has: Two second side walls, which are parallel to the rope direction; A second bottom side wall connecting the two second side walls; Two second extension portions, which are disposed on the two second side walls and extend toward each other; Two second extension members are respectively arranged in the second groove and located at two ends of the upper side surface of the second movable door along the direction of the rope; the two pulleys of the first pulley rope group are respectively arranged on the two second extension members; each second extension member has: Two second protrusions, which protrude toward the two second side walls respectively; at least one second locking hole, each of which passes through the second extension piece; A third movable door is movably connected to the third slide rail, and the second pulley rope set is arranged on the third movable door; the third movable door has: A third groove is provided on the upper side of the third movable door and extends along the direction of the rope, and the third groove has: two third side walls, which are parallel to the rope direction; a third bottom side wall connecting the two third side walls; Two third extension portions, which are disposed on the two third side walls and extend toward each other; Two third extension members are respectively arranged in the third groove and located at two ends of the upper side surface of the third movable door along the direction of the rope; the two pulleys of the second pulley rope group are respectively arranged on the two third extension members; each of the third extension members has: Two third protrusions, which protrude toward the two third side walls respectively; at least one third locking hole respectively passing through the third extension piece; A plurality of support members, at least one of the support members is disposed in at least one of the first locking holes of the first extension member and contacts the first bottom side wall, so that the two first protrusions of the first extension member are in contact with the two first extensions respectively; at least one of the support members is disposed in at least one of the second locking holes of each of the second extension members and contacts the second bottom side wall, so that the two second protrusions of the two second extension members are in contact with the two second extensions respectively; at least one of the support members is disposed in at least one of the third locking holes of the two third extension members and contacts the third bottom side wall, so that the two protrusions of the two third extension members are in contact with the two third extensions respectively; The fourth rope locking member is locked beside the third slide rail close to the fixed door, and locks the rope of the second pulley rope group on the third movable door; the third rope locking member is locked to one of the third extension members on the third movable door away from the fixed door, and locks the rope of the first pulley rope group on the second movable door; the second rope locking member is locked to one of the second extension members on the second movable door adjacent to the fixed door, and locks the rope of the second pulley rope group on the third movable door; the first rope locking member is locked to the first extension member, and locks the rope of the first pulley rope group on the second movable door.

2. The synchronous sliding door device according to claim 1, characterized in that: Each of the support members has: A non-slip portion is disposed at the end of the support member and contacts the first bottom side wall, the second bottom side wall or the third bottom side wall.

3. The synchronous sliding door device according to claim 1, characterized in that: One of the second extension pieces is away from the fixed door, and one of the second extension pieces extends in the direction of the rope to protrude from the upper side of the second movable door; one of the third extension pieces is away from the fixed door, and one of the third extension pieces extends in the direction of the rope to protrude from the upper side of the third movable door.

4. The synchronous sliding door device according to claim 1, characterized in that: At least one of the second extensions has: A long hole; a movable locking member, which is disposed in the long hole and can selectively move in the long hole and lock on the extension member; wherein one of the pulleys is locked on the movable locking member; An adjusting piece is passed through the extending piece and connected to the movable locking piece.

5. The synchronous sliding door device according to claim 4, characterized in that: At least one of the second extensions has: A fourth locking hole extending in the direction of the rope and disposed on the second extension member and connected to the long hole; The movable locking member has: A movable locking hole is extended in the direction of the rope and penetrates the movable locking piece; the adjusting piece is penetrated in the fourth locking hole and the movable locking hole.

6. A synchronous sliding door device, characterized in that: The synchronous door sliding device is arranged on a plurality of slide rails; the plurality of slide rails include a first slide rail, a second slide rail, at least a fourth slide rail, and a third slide rail; the slide rails are parallel to each other and arranged in sequence; the synchronous door sliding device has: A plurality of pulley rope groups, wherein the pulley rope groups include a first pulley rope group, a second pulley rope group, and at least a third pulley rope group; each pulley rope group has: Two pulleys; a rope, which is sleeved on the two pulleys; a direction from one of the two pulleys to the other pulley is a rope direction; A plurality of rope locking members capable of locking the rope; the plurality of rope locking members include a first rope locking member, a second rope locking member, a third rope locking member, a fourth rope locking member, and a plurality of fifth rope locking members; each of the rope locking members has: At least one rope placement hole, which penetrates the rope locking member in the direction of the rope; the rope is passed through at least one of the rope placement holes; At least one rope locking hole, which is respectively arranged on the rope locking member and communicates with at least one rope placing hole; At least one locking member, which is respectively passed through at least one of the rope locking holes and abuts against the rope; a fixed door locked to the slide rail; A first movable door, which is movably connected to the first slide rail and has: A first groove is disposed on the upper side of the first movable door and extends along the direction of the rope, and the first groove has: Two first side walls, which are parallel to the rope direction; A first bottom side wall connecting the two first side walls; Two first extension portions, which are disposed on the two first side walls and extend toward each other; A first extension piece is disposed in the first groove and is located at an end of the upper side of the first movable door adjacent to the fixed door; the first extension piece has: Two first protrusions, which protrude toward the two first side walls respectively; at least one first locking hole, which respectively penetrates through the first extension piece; A second movable door is movably connected to the second slide rail, and the first pulley rope set is arranged on the second movable door; the second movable door has: A second groove is disposed on the upper side of the second movable door and extends along the direction of the rope, and the second groove has: Two second side walls, which are parallel to the rope direction; A second bottom side wall connecting the two second side walls; Two second extension portions, which are disposed on the two second side walls and extend toward each other; Two second extension members are respectively arranged in the second groove and located at two ends of the upper side surface of the second movable door along the direction of the rope; the two pulleys of the first pulley rope group are respectively arranged on the two second extension members; each second extension member has: Two second protrusions, which protrude toward the two second side walls respectively; at least one second locking hole, each of which passes through the second extension piece; A third movable door is movably connected to the third slide rail, and the second pulley rope set is arranged on the third movable door; the third movable door has: A third groove is provided on the upper side of the third movable door and extends along the direction of the rope, and the third groove has: two third side walls, which are parallel to the rope direction; a third bottom side wall connecting the two third side walls; Two third extension portions, which are disposed on the two third side walls and extend toward each other; Two third extension members are respectively arranged in the third groove and located at two ends of the upper side surface of the third movable door along the direction of the rope; the two pulleys of the second pulley rope group are respectively arranged on the two third extension members; each of the third extension members has: Two third protrusions, which protrude toward the two third side walls respectively; at least one third locking hole respectively passing through the third extension piece; At least one fourth moving door; each of the fourth moving doors is movably connected to each of the fourth slide rails, and each of the third pulley rope sets is respectively arranged on each of the fourth moving doors; each of the fourth moving doors is located between the third moving door and the second moving door, and each has: A fourth groove is provided on the upper side of the fourth movable door and extends along the direction of the rope and has: two fourth side walls, which are parallel to the rope direction; a fourth bottom side wall connecting the two fourth side walls; Two fourth extension portions, which are disposed on the two fourth side walls and extend toward each other; Two fourth extension members are respectively disposed in the fourth groove and located at two ends of the upper side surface of the fourth movable door along the direction of the rope; the two pulleys of one of the third pulley rope sets are respectively disposed on the two fourth extension members; each of the fourth extension members has: Two fourth protrusions, which protrude toward the two fourth side walls respectively; at least one fourth locking hole, each of which passes through the fourth extension piece; A plurality of support members, at least one of the support members is disposed in at least one of the first locking holes of the first extension member and contacts the first bottom side wall, so that the two first protrusions of the first extension member are in contact with the two first extensions respectively; at least one of the support members is disposed in at least one of the second locking holes of each of the second extension members and contacts the second bottom side wall, so that the two second protrusions of the two second extension members are in contact with the two second extensions respectively; at least one of the support members is disposed in at least one of the third locking holes of the two third extension members and contacts the third bottom side wall, so that the two protrusions of the two third extension members are in contact with the two third extensions respectively; at least one of the support members is disposed in at least one of the fourth locking holes of the two fourth extension members and contacts the fourth bottom side wall, so that the two protrusions of the two fourth extension members are in contact with the two fourth extensions respectively; Each of the fifth rope lock members is respectively locked on the two fourth extension members of each of the fourth movable doors; wherein each of the fourth movable doors which is not adjacent to the third movable door or the second movable door respectively uses one of the fifth rope lock members which is far away from the fixed door to lock the rope of the third pulley rope group on the fourth movable door which is adjacent to itself and far away from the fixed door, and respectively uses one of the fifth rope lock members which is close to the fixed door to lock the rope of the third pulley rope group on the fourth movable door which is adjacent to itself and far away from the fixed door; The fourth rope locking member is locked to the sliding rail close to the fixed door, and locks the rope of the second pulley rope group on the third moving door; the third rope locking member is locked to one of the third extension members on the third moving door away from the fixed door, and locks the rope of the third pulley rope group adjacent to the third moving door; one of the fifth rope locking members on the fourth moving door adjacent to the third moving door and close to the fixed door locks the rope of the second pulley rope group; one of the fifth rope locking members on the fourth moving door adjacent to the third moving door and away from the fixed door locks the rope of the third pulley rope group of an adjacent fourth moving door; the second rope locking member is locked to one of the second extension members on the second moving door adjacent to the fixed door, and locks the rope of the third pulley rope group on the adjacent fourth moving door; the first rope locking member is locked to the first extension member, and locks the rope of the first pulley rope group on the second moving door.

Images