Coplanar door track changing sliding mechanism and coplanar door system

Abstract

The invention discloses a coplanar door track-changing sliding mechanism and a coplanar door system. The coplanar door track-changing sliding mechanism comprises a door panel fixing seat, a sliding mechanism for realizing displacement of the door panel fixing seat, a limiting mechanism for realizing track-changing of the door panel fixing seat, and a limiting toggle member for triggering the limiting mechanism to generate displacement; the limiting mechanism is connected between the sliding mechanism and the door panel fixing seat; the limiting toggle member is arranged at a moving path terminal of the sliding mechanism for closing the door panel fixing seat; when the sliding mechanism drives the door panel fixing seat to reach the moving path terminal, the limiting toggle member is connected with the limiting mechanism, so that the limiting mechanism drives the door panel fixing seat to move, and the door panel fixing seat generates track-changing displacement relative to the sliding mechanism. The mechanism can realize track-changing of the door panel fixing seat on a straight track, can realize straight track cutting according to the actual size of furniture, has flexible application, convenient stocking, mass production, and low application cost.

Description

Technical Field

[0001] The invention relates to the field of furniture, and in particular to a coplanar door track-changing sliding mechanism and a coplanar door system. Background Art

[0002] Due to the limitation of space utilization, furniture with sliding doors, such as wardrobes or room doors, is increasingly widely used. To open one of the door leaves of a coplanar door, it is necessary to disengage the door leaf from the adjacent door leaf. When closing the door leaf, it is necessary to use an arc-shaped curved track to change the running track of the door leaf so that the closed door leaves can be coplanar. However, the setting of the arc-shaped curved track means that the coplanar door cannot be cut according to the size of the furniture during installation and use. The application is inflexible, the stocking is inconvenient, the production is difficult, and the application cost is too high. Summary of the invention

[0003] In view of the defects of the prior art, the present invention provides a coplanar door track-changing sliding mechanism and a coplanar door system.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] A coplanar door track-changing sliding mechanism comprises a door panel fixing seat, a sliding mechanism for realizing displacement of the door panel fixing seat, a limiting mechanism for realizing track-changing of the door panel fixing seat, and a limiting toggle member for triggering the limiting mechanism to generate displacement;

[0006] The limiting mechanism is connected between the sliding mechanism and the door panel fixing seat;

[0007] The limit toggle member is arranged at the terminal end of the moving path of the sliding mechanism for closing the door panel fixing seat (that is, for achieving the closure of the coplanar door);

[0008] When the sliding mechanism drives the door panel fixing seat to reach the end of the moving path, the limit toggle member is connected to the limit mechanism, so that the limit mechanism drives the door panel fixing seat to move and generate displacement relative to the sliding mechanism to achieve coplanar closure of the door panel fixing seat.

[0009] The coplanar door track-changing sliding mechanism provided by the present invention changes the state of the limit mechanism by contacting the limit toggle piece with the limit mechanism, and the limit mechanism drives the door panel fixing seat to move and generate displacement relative to the sliding mechanism to achieve coplanar closure of the door panel fixing seat. The mechanism can achieve track change of the door panel fixing seat on a straight track, can cut the track according to the actual size of the furniture, is flexible in application, convenient in stocking, and can be mass-produced with low application cost.

[0010] Furthermore, the limiting mechanism comprises a limiting base fixedly connected to the sliding mechanism, a movable limiting member movably connected to the limiting base, and a fixing member fixed relatively to the door panel fixing seat;

[0011] The limit base is arranged between the movable limit member and the fixed member, and the movable limit member is rotatably connected to the fixed member. When the movable limit member contacts the limit toggle member, the movable limit member rotates relative to the fixed member to cause the movable limit member to be displaced relative to the limit base.

[0012] Furthermore, the position-limiting toggle member includes a base arranged on the track of the sliding mechanism and a toggle member arranged on the base.

[0013] Furthermore, the shifting member is a rotating wheel.

[0014] Furthermore, the movable stopper is provided with a clamping piece for clamping the movable stopper; the fixing piece is provided with a connecting column;

[0015] The connecting column is rotatably connected to the movable limiting member, and the connecting column is rotatably connected to the elastic member; the elastic member is elastically connected to the locking member.

[0016] Furthermore, the limiting base is provided with a limiting hole for guiding the displacement of the movable limiting member, and the limiting hole is provided with a clamping groove for clamping the movable limiting member;

[0017] The connecting column and the locking piece are respectively slidably connected to the limiting hole.

[0018] Furthermore, the movable limiting member is provided with a first arc-shaped groove, and a groove surface of the first arc-shaped groove is tangent to a wheel surface of the toggle member.

[0019] Furthermore, the limiting mechanism also includes a fixed limiting member fixed relative to the fixing member and a guide hole provided on the limiting base for guiding the displacement of the fixed limiting member.

[0020] Furthermore, the fixed limiting member is provided with a straight groove and a second arc groove connected to the straight groove, and when the toggle member contacts the movable limiting member, the movable limiting member is driven to rotate so that the groove surface of the first arc groove is correspondingly connected with the groove surface of the second arc groove.

[0021] Furthermore, an isolating member is provided between the fixing member and the movable limiting member, and the isolating member and the movable limiting member are relatively fixed.

[0022] Thus, by connecting the toggle member with the movable limiting member, the locking member on the movable limiting member overcomes the elasticity of the elastic member and slides out of the locking groove. At this time, the movable limiting member slides relative to the limiting base, so that the limiting mechanism drives the door panel fixing seat to move along the groove surface of the first arc groove and generate displacement relative to the sliding mechanism to achieve coplanar closure of the door panel fixing seat.

[0023] Therefore, the movable limiting member will be in active contact with the toggle member and the fixed limiting member during use, and the movable limiting member made of plastic material can reduce the impact force of the collision during contact and reduce the noise.

[0024] Furthermore, the limiting mechanism also includes an elastic reset member, and the elastic reset member is connected between the sliding mechanism and the door panel fixing seat.

[0025] Furthermore, the elastic return member is a spring.

[0026] Furthermore, a roller is provided on the door panel fixing seat, and the roller is in sliding contact with the spring so that the spring forms an "L"-shaped structure.

[0027] Furthermore, the elastic reset member is a reset spring.

[0028] Therefore, under the action of the elastic reset member, the limiting mechanism is conducive to driving the door panel fixing seat to change track smoothly.

[0029] Furthermore, the sliding mechanism includes a sliding base for realizing the displacement of the door panel fixed seat.

[0030] Furthermore, the sliding base is provided with a pulley for realizing the displacement of the sliding mechanism.

[0031] Furthermore, the sliding mechanism also includes a guiding device for realizing the displacement of the door panel fixing seat relative to the sliding base.

[0032] Furthermore, the guide device includes a guide member arranged on the sliding base and a guide seat slidably connected to the guide member, and the guide seat is fixedly connected to the door panel fixing seat.

[0033] Therefore, through the guide device on the sliding mechanism, the door panel fixing seat can achieve directional displacement relative to the sliding base.

[0034] Furthermore, it also includes a synchronization mechanism, which is arranged between the door panel fixing seat and the sliding mechanism to guide the displacement of the door panel fixing seat relative to the sliding mechanism.

[0035] Furthermore, the synchronization mechanism includes a first connecting member having a first rotating end and a first moving end, and a second connecting member having a second rotating end and a second moving end, and the first connecting member is movably connected to the second connecting member.

[0036] Furthermore, the first rotating end is movably connected to the sliding base, and the first moving end is slidably connected to the door panel fixing seat; the second rotating end is movably connected to the door panel fixing seat, and the second moving end is slidably connected to the sliding base.

[0037] Furthermore, the door panel fixing seat is provided with a first sliding groove, the first movable end is provided with a first sliding member, and the first sliding member is slidably connected to the first sliding groove;

[0038] The sliding base is provided with a second sliding groove, the second movable end is provided with a second sliding member, and the second sliding member is slidably connected to the second sliding groove.

[0039] Alternatively, the door panel fixing seat is provided with a first sliding member, the first movable end is provided with a first sliding groove, and the first sliding member is slidably connected to the first sliding groove;

[0040] The sliding base is provided with a second sliding member, the second movable end is provided with a second sliding groove, and the second sliding member is slidably connected to the second sliding groove.

[0041] Therefore, when the door panel fixing seat is displaced relative to the sliding mechanism, the synchronization mechanism guides the displacement of the door panel fixing seat relative to the sliding mechanism, so that the door leaves are always in a parallel state. In summary, the coplanar door track-changing sliding mechanism provided by the present invention has the following beneficial effects:

[0042] (1) The limit toggle member contacts the limit mechanism to change the state of the limit mechanism, and the limit mechanism drives the door panel fixing seat to move and generate displacement relative to the sliding mechanism to achieve coplanar closure of the door panel fixing seat. The mechanism can change the track of the door panel fixing seat on a straight track and can cut the track according to the actual size of the furniture. It is flexible in application, easy to stock, and can be mass-produced with low application cost.

[0043] (2) The toggle member is connected to the movable limiting member, so that the locking member on the movable limiting member overcomes the elasticity of the elastic member and slides out of the locking groove. At this time, the movable limiting member slides relative to the limiting base, so that the limiting mechanism drives the door panel fixing seat to move along the groove surface of the first arc groove and generate displacement relative to the sliding mechanism, so as to realize the coplanar closure of the door panel fixing seat.

[0044] (3) Through the guide device on the sliding mechanism, the door panel fixing seat can achieve directional displacement relative to the sliding base.

[0045] (4) When the door panel fixing seat is displaced relative to the sliding mechanism, the synchronization mechanism guides the displacement of the door panel fixing seat relative to the sliding mechanism so that the door leaves are always in a parallel state.

[0046] The present invention also provides a coplanar door system, comprising the coplanar door track-changing sliding mechanism.

[0047] Furthermore, it also includes a track supporting the displacement of the sliding mechanism, and the limit toggle member is arranged at the track terminal of the sliding mechanism for closing the coplanar doors; when the sliding mechanism drives the door panel fixing seat to reach the track terminal, the limit toggle member is connected to the limit mechanism, so that the limit mechanism drives the door panel fixing seat to move and generate displacement relative to the sliding mechanism to achieve coplanar closure of the coplanar doors.

[0048] In summary, the present invention provides a coplanar door system, the rails can be cut according to the actual size of the furniture, the application is flexible, the stocking is convenient, the batch production is convenient, and the application cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the structural decomposition of the coplanar door track-changing sliding mechanism of the present invention;

[0050] Figure 2 It is a structural schematic diagram of the limiting mechanism of the present invention;

[0051] Figure 3 It is a schematic diagram of the structural decomposition of the limiting mechanism of the present invention;

[0052] Figure 4 It is a schematic structural diagram of the position-limiting toggle member of the present invention;

[0053] Figure 5 It is a structural schematic diagram of the door panel fixing seat of the present invention;

[0054] Figure 6 It is a structural schematic diagram of the coplanar door system of the present invention when it is closed;

[0055] Figure 7 It is a schematic structural diagram of the coplanar door system of the present invention when it is opened.

[0056] Description of reference numerals:

[0057] 1. Sliding mechanism; 11. Sliding base; 111. Pulley; 12. Guide device; 121. Guide member; 122. Guide seat; 2. Door panel fixing seat; 21. Connecting hole; 22. Connecting port; 23. Roller; 3. Limiting mechanism; 31. Movable limiting member; 311. First arc groove; 32. Fixed limiting member; 321. Straight groove; 322. Second arc groove; 33. Limiting base; 331. Limiting hole; 3311. Slot; 332, guide hole; 34, fixing member; 35, connecting column; 36, locking member; 37, elastic member; 38, isolating member; 39, elastic reset member; 4, synchronization mechanism; 41, first connecting member; 42, second connecting member; 43, first sliding member; 44, second sliding member; 45, first sliding groove; 46, second sliding groove; 5, limit toggle member; 51, base; 52, toggle member; 6, door leaf; 7, track. DETAILED DESCRIPTION

[0058] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0059] like Figure 1-5 As shown, the coplanar door track-changing sliding mechanism provided by the present invention is used to realize the coplanar door track-changing, and includes a door panel fixing seat 2, a sliding mechanism 1 for realizing the displacement of the door panel fixing seat 2, a limiting mechanism 3 for realizing the track-changing of the door panel fixing seat 2, and a limiting toggle member 5 for triggering the displacement of the limiting mechanism 3; the limiting mechanism 3 is connected between the sliding mechanism 1 and the door panel fixing seat 2; the limiting toggle member 5 is arranged at the terminal of the moving path of the sliding mechanism 1 for closing the door panel fixing seat 2; when the sliding mechanism 1 drives the door panel fixing seat 2 to reach the terminal of the moving path, the limiting toggle member 5 contacts the limiting mechanism 3, so that the limiting mechanism 3 drives the door panel fixing seat 2 to move and generate displacement relative to the sliding mechanism 1, so as to realize the coplanar closing of the door panel fixing seat 2.

[0060] like Figure 2-3 As shown, the limiting mechanism 3 includes a limiting base 33 fixedly connected to the sliding mechanism 1, a movable limiting member 31 movably connected to the limiting base 33, and a fixing member 34 fixed relatively to the door panel fixing base 2; the limiting base 33 is arranged between the movable limiting member 31 and the fixing member 34, and the movable limiting member 31 is rotatably connected to the fixing member 34. When the movable limiting member 31 contacts the toggle member 52, the movable limiting member 31 rotates relative to the fixing member 34, so that the movable limiting member 31 is displaced relative to the limiting base 33. The limiting toggle member 5 includes a base 51 and a toggle member 52 arranged on the base 51. The toggle member 52 is a rotating wheel. The movable stopper 31 is provided with a clamping piece 36 for clamping the movable stopper 31; the fixing piece 34 is provided with a connecting column 35; the connecting column 35 is rotatably connected to the movable stopper 31, and the connecting column 35 is rotatably connected to the elastic piece 37; the elastic piece 37 is elastically connected to the clamping piece 36. The limit base 33 is provided with a limit hole 331 for guiding the displacement of the movable stopper 31, and the limit hole 331 is provided with a clamping groove 3311 for clamping the movable stopper 31; the connecting column 35 and the clamping piece 36 are slidably connected to the limit hole 331 respectively. The movable stopper 31 is provided with a first arc groove 311, and the groove surface of the first arc groove 311 is tangent to the wheel surface of the toggle member 52.

[0061] When the coplanar door is opened, the elastic member 37 clamps the locking member 36 in the slot 3311; when the coplanar door is closed, the toggle member 52 is connected to the movable limiting member 31, and the locking member 36 overcomes the elastic force of the elastic member 37 and slides out of the slot 3311, so that the limiting mechanism 3 drives the door panel fixing seat 2 to move along the groove surface of the first arc groove 311 and generate displacement relative to the sliding mechanism 1 to achieve the coplanar closing of the coplanar door.

[0062] In this embodiment, the limiting mechanism 3 further includes a fixed limiting member 32 fixed relative to the fixing member 34 and a guide hole 332 provided on the limiting base 33 for guiding the displacement of the fixed limiting member 32. The fixed limiting member 32 is provided with a straight groove 321 and a second arc groove 322 connected with the straight groove 321. When the toggle member 52 contacts the movable limiting member 31, it drives the movable limiting member 31 to rotate, so that the groove surface of the first arc groove 311 is correspondingly connected with the groove surface of the second arc groove 322. The movable limiting member 31 is provided with a sharp corner, and the sharp corner moves in the second arc groove 322 during the rotation of the movable limiting member 31, and will not collide with the fixed limiting member 32. When the locking member 36 contacts the hole wall of the limiting hole 331, the movable limiting member 31 stops rotating. At this time, the groove surface of the first arc groove 311 and the groove surface of the second arc groove 322 are correspondingly connected, so that the first arc groove 311 and the second arc groove 322 are connected to form a complete arc groove passing through the toggle member 52. An isolation member 38 is provided between the fixing member 34 and the movable limiting member 31 to prevent the elastic member 37 from being stuck in the limiting hole 331. The isolation member 38 is relatively fixed to the movable limiting member 31.

[0063] The movable stopper 31 will be in active contact with the toggle member 52 and the fixed stopper 32 during use. The movable stopper 31 made of plastic can reduce the impact force of the collision during contact and reduce noise.

[0064] Thus, the toggle member 52 contacts the movable limit member 31, prompting the locking member 36 on the movable limit member 31 to overcome the elasticity of the elastic member 37 and slide out of the locking groove 3311. At this time, the movable limit member 31 slides relative to the limit base 33, so that the limit mechanism 3 drives the door panel fixing seat 2 to move along the groove surface of the first arc groove 311, and produces displacement relative to the sliding mechanism 3, so as to realize the coplanar closure of the coplanar doors.

[0065] participate Figure 5, the limit mechanism 3 further includes an elastic reset member 39, which is connected between the sliding mechanism 1 and the door panel fixing seat 2. The elastic reset member 39 is a spring. The door panel fixing seat 2 is provided with a roller 23, and the roller 23 is in sliding contact with the spring so that the spring forms an "L"-shaped structure. In another case, the elastic reset member 39 is a reset spring, and the two ends of the reset spring are respectively connected to the door panel fixing seat 2 and the sliding base 11.

[0066] Therefore, under the action of the elastic reset member 39, the limiting mechanism 3 is conducive to driving the door panel fixing seat 2 to change track smoothly.

[0067] In the present invention, the sliding mechanism 1 includes a sliding base 11 for realizing the displacement of the door panel fixing base 2 and a pulley 111 arranged on the sliding base 11 .

[0068] In addition, the sliding mechanism 1 also includes a guide device 12 for realizing the displacement of the door panel fixing seat 2 relative to the sliding base 11; the guide device 12 includes a guide member 121 arranged on the sliding base 11 and a guide seat 122 slidably connected to the guide member 121, and the guide seat 122 is fixedly connected to the door panel fixing seat 2.

[0069] Therefore, the door panel fixing seat 2 can achieve directional displacement relative to the sliding base 11 through the guide device 12 on the sliding mechanism 1.

[0070] like Figure 1 As shown, in the present invention, a synchronization mechanism 4 is further included. The synchronization mechanism 4 is arranged between the door panel fixing seat 2 and the sliding mechanism 1 to guide the displacement of the door panel fixing seat 2 relative to the sliding mechanism 1.

[0071] In this embodiment, the synchronization mechanism 4 includes a first connecting member 41 having a first rotating end and a first moving end, and a second connecting member 42 having a second rotating end and a second moving end, and the first connecting member 41 is movably connected to the second connecting member 42. The first rotating end is movably connected to the sliding base 11, and the first moving end is slidably connected to the door panel fixing base 2; the second rotating end is movably connected to the door panel fixing base 2, and the second moving end is slidably connected to the sliding base 11.

[0072] Specifically, a first sliding groove 45 is provided on the door panel fixing seat 2, a first sliding member 43 is provided on the first movable end, and the first sliding member 43 is slidably connected to the first sliding groove 45; a second sliding groove 46 is provided on the sliding base 11, a second sliding member 44 is provided on the second movable end, and the second sliding member 44 is slidably connected to the second sliding groove 46.

[0073] Alternatively, a first sliding member 43 is provided on the door panel fixing seat 2, a first sliding groove 45 is provided on the first movable end, and the first sliding member 43 is slidably connected to the first sliding groove 45; a second sliding member 44 is provided on the sliding base 11, a second sliding groove 46 is provided on the second movable end, and the second sliding member 44 is slidably connected to the second sliding groove 46.

[0074] Therefore, when the door panel fixing seat 2 is displaced relative to the sliding mechanism 1, the synchronization mechanism 4 guides the displacement of the door panel fixing seat 2 relative to the sliding mechanism 1, so that the door leaves 6 are always in a parallel state.

[0075] In the present invention, the door panel fixing seat 2 is provided with a connecting hole 21 and a connecting port 22 for connecting the door leaf 6 .

[0076] In summary, the coplanar door track-changing sliding mechanism provided by the present invention has the following beneficial effects:

[0077] (i) By contacting the limit toggle member 5 with the limit mechanism 3, the state of the limit mechanism 3 is changed, and the limit mechanism 3 drives the door panel fixing seat 2 to move and generate displacement relative to the sliding mechanism 1 to achieve the coplanar closure of the door panel fixing seat 2. The mechanism can achieve the track change of the door panel fixing seat 2 on the straight track, and can cut the track according to the actual size of the furniture. It is flexible in application, easy to stock, mass-produced, and has low application cost.

[0078] (ii) The toggle member 52 contacts the movable limiting member 31, prompting the locking member 36 on the movable limiting member 31 to overcome the elasticity of the elastic member 37 and slide out of the locking groove 3311. At this time, the movable limiting member 31 slides relative to the limiting base 33, so that the limiting mechanism 3 drives the door panel fixing seat 2 to move along the groove surface of the first arc groove 311 and generate displacement relative to the sliding mechanism 1 to achieve coplanar closure of the door panel fixing seat 2.

[0079] (iii) Through the guide device 12 on the sliding mechanism 1, the door panel fixing seat 2 can achieve directional displacement relative to the sliding base 11.

[0080] (iv) When the door panel fixing seat 2 is displaced relative to the sliding mechanism 1, the synchronization mechanism 4 guides the displacement of the door panel fixing seat 2 relative to the sliding mechanism 1 so that the door leaves 6 are always in a parallel state.

[0081] participate Figure 6-7 The present invention also provides a coplanar door system, including the coplanar door track-changing sliding mechanism.

[0082] In the present invention, a track 7 for supporting the displacement of the sliding mechanism 1 is also included. Since the coplanar door track-changing sliding mechanism itself can realize track change, that is, the door panel fixing seat 2 produces relative displacement relative to the sliding mechanism 1, so that the track 7 does not need to be provided with a curved track for the coplanar door track-changing sliding mechanism to change the track, therefore, the track 7 can be freely cut according to the actual length requirements when applied to the coplanar door system. The limit toggle member 5 is provided at the terminal of the track 7 of the sliding mechanism 1 for closing the coplanar door; when the sliding mechanism 1 drives the door panel fixing seat 2 to reach the terminal of the track 7, the limit toggle member 5 contacts the limit mechanism 3, so that the limit mechanism 3 drives the door panel fixing seat 2 to move and produce displacement relative to the sliding mechanism 1, so as to realize the coplanar closing of the coplanar door.

[0083] In summary, the present invention provides a coplanar door system, the rails can be cut according to the actual size of the furniture, the application is flexible, the stocking is convenient, the batch production is convenient, and the application cost is low.

[0084] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A coplanar door track changing sliding mechanism, characterized in that: The invention comprises a door panel fixing seat (2), a sliding mechanism (1) for realizing displacement of the door panel fixing seat (2), a limiting mechanism (3) for realizing track change of the door panel fixing seat (2), and a limiting toggle member (5) for triggering the limiting mechanism (3) to generate displacement; the limiting mechanism (3) is connected between the sliding mechanism (1) and the door panel fixing seat (2); the limiting toggle member (5) is arranged at the end of the moving path of the sliding mechanism (1) for closing the coplanar door; The limiting mechanism (3) comprises a limiting base (33) fixedly connected to the sliding mechanism (1), a movable limiting member (31) movably connected to the limiting base (33), and a fixing member (34) fixed relatively to the door panel fixing base (2); the limiting base (33) is arranged between the movable limiting member (31) and the fixing member (34), and the movable limiting member (31) and the fixing member (34) are rotatably connected; when the movable limiting member (31) contacts the limiting toggle member (5), the movable limiting member (31) rotates relative to the fixing member (34), so that the movable limiting member (31) is displaced relative to the limiting base (33); the limiting toggle member (5) comprises a base (51) and a toggle member (52) arranged on the base (51); The movable limiting member (31) is provided with a clamping member (36) for clamping the movable limiting member (31); the fixing member (34) is provided with a connecting column (35); the connecting column (35) is rotatably connected to the movable limiting member (31), and the connecting column (35) is rotatably connected to the elastic member (37); the elastic member (37) is elastically connected to the clamping member (36); the limiting base (33) is provided with a limiting hole (331) for guiding the displacement of the movable limiting member (31), and the limiting hole (331) is provided with a clamping groove (3311) for clamping the movable limiting member (31); the connecting column (35) and the clamping member (36) are respectively slidably connected to the limiting hole (331); When the coplanar door is opened, the elastic member (37) clamps the locking member (36) in the locking groove (3311); when the coplanar door is closed, the toggle member (52) is connected to the movable limiting member (31), and the locking member (36) overcomes the elastic force of the elastic member (37) and slides out of the locking groove (3311), so that the limiting mechanism (3) drives the door panel fixing seat (2) to move, and causes the door panel fixing seat (2) to produce a track change displacement relative to the sliding mechanism (1).

2. According to the coplanar door track-changing sliding mechanism according to claim 1, the shifting member (52) is a rotating wheel.

3. The coplanar door track-changing sliding mechanism according to claim 1, characterized in that: The movable stopper (31) is provided with a first arc-shaped groove (311), and the groove surface of the first arc-shaped groove (311) is tangent to the wheel surface of the shifting member (52).

4. The coplanar door track-changing sliding mechanism according to claim 3, characterized in that: The limiting mechanism (3) further comprises a fixed limiting member (32) fixed relative to the fixing member (34) and a guide hole (332) provided on the limiting base (33) for guiding the displacement of the fixed limiting member (32).

5. The coplanar door track-changing sliding mechanism according to claim 4, characterized in that: The fixed limiting member (32) is provided with a straight groove (321) and a second arc groove (322) connected to the straight groove (321); when the toggle member (52) contacts the movable limiting member (31), the movable limiting member (31) is driven to rotate, so that the groove surface of the first arc groove (311) and the groove surface of the second arc groove (322) are correspondingly connected.

6. The coplanar door track-changing sliding mechanism according to claim 5, characterized in that: An isolation piece (38) is provided between the fixing piece (34) and the movable limiting piece (31), and the isolation piece (38) and the movable limiting piece (31) are relatively fixed.

7. The coplanar door track-changing sliding mechanism according to any one of claims 1 to 6, characterized in that: The limiting mechanism (3) also includes an elastic reset member (39), and the elastic reset member (39) is connected between the sliding mechanism (1) and the door panel fixing seat (2).

8. The coplanar door track-changing sliding mechanism according to claim 7, characterized in that: The elastic reset member (39) is a spring.

9. The coplanar door track-changing sliding mechanism according to claim 8, characterized in that: The door panel fixing seat (2) is provided with a roller (23), and the roller (23) is in sliding contact with the spring so that the spring forms an "L"-shaped structure.

10. The coplanar door track-changing sliding mechanism according to claim 9, characterized in that: The elastic reset member (39) is a reset spring.

11. The coplanar door track-changing sliding mechanism according to any one of claims 9 to 10, characterized in that: The sliding mechanism (1) comprises a sliding base (11) for achieving displacement of a door panel fixing seat (2) and a pulley (111) arranged on the sliding base (11).

12. The coplanar door track-changing sliding mechanism according to claim 11, characterized in that: The sliding mechanism (1) also includes a guiding device (12) for realizing relative displacement of the door panel fixing seat (2).

13. The coplanar door track-changing sliding mechanism according to claim 12, characterized in that: The guide device (12) comprises a guide member (121) disposed on the sliding base (11) and a guide seat (122) slidably connected to the guide member (121); the guide seat (122) is fixedly connected to the door panel fixing seat (2).

14. The coplanar door track-changing sliding mechanism according to claim 12 or 13, characterized in that: It also comprises a synchronization mechanism (4), which is arranged between the door panel fixing seat (2) and the sliding mechanism (1) to guide the displacement of the door panel fixing seat (2) relative to the sliding mechanism (1).

15. The coplanar door track-changing sliding mechanism according to claim 14, characterized in that: The synchronization mechanism (4) comprises a first connecting member (41) having a first rotating end and a first moving end, and a second connecting member (42) having a second rotating end and a second moving end, wherein the first connecting member (41) and the second connecting member (42) are movably connected.

16. The coplanar door track-changing sliding mechanism according to claim 15, characterized in that: The first rotating end is movably connected to the sliding base (11), and the first movable end is slidably connected to the door panel fixing base (2); the second rotating end is movably connected to the door panel fixing base (2), and the second movable end is slidably connected to the sliding base (11).

17. The coplanar door track-changing sliding mechanism according to claim 16, characterized in that: The door panel fixing seat (2) is provided with a first sliding groove (45), the first movable end is provided with a first sliding member (43), and the first sliding member (43) is slidably connected to the first sliding groove (45); The sliding base (11) is provided with a second sliding groove (46), the second movable end is provided with a second sliding member (44), and the second sliding member (44) is slidably connected to the second sliding groove (46); Alternatively, the door panel fixing seat (2) is provided with a first sliding member (43), the first movable end is provided with a first sliding groove (45), and the first sliding member (43) is slidably connected to the first sliding groove (45); The sliding base (11) is provided with a second sliding member (44), the second movable end is provided with a second sliding groove (46), and the second sliding member (44) is slidably connected to the second sliding groove (46).

18. A coplanar door system, characterized in that: It comprises the coplanar door track changing sliding mechanism as described in any one of claims 1-17.

19. The coplanar door system according to claim 18, characterized in that: It also includes a track (7) for supporting the displacement of the sliding mechanism (1), and the limit-shifting member (5) is arranged at the end of the track (7) of the sliding mechanism (1) for closing the coplanar door; when the sliding mechanism (1) drives the door panel fixing seat (2) to reach the end of the track (7), the limit-shifting member (5) is connected to the limit mechanism (3), so that the limit mechanism (3) drives the door panel fixing seat (2) to move and generate displacement relative to the sliding mechanism (1), so as to realize the coplanar closing of the coplanar door.

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