CN111472652A

CN111472652A - Translation door structure

Info

Publication number: CN111472652A
Application number: CN202010296460.9A
Authority: CN
Inventors: 陈金柱; 陈建山
Original assignee: Shanghai Zhengru Enterprise Development Co ltd
Current assignee: Shanghai Zhengru Enterprise Development Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-07-31
Anticipated expiration: 2040-04-15
Also published as: CN111472652B

Abstract

The invention discloses a translation door structure, which relates to the technical field of translation doors and comprises a door frame, a fixed door body and a movable door body, wherein the fixed door body and the movable door body are arranged in the door frame; a second sliding chute is formed in the bottom surface of the movable door body along the length direction; one side of the first sliding chute, which is close to the fixed door body, penetrates through the side wall of the movable door body; a first sliding assembly in sliding fit with the first sliding chute is arranged on the inner top surface of the door frame; a second sliding component is arranged in the second sliding groove along the length direction; the top surface of the door frame is provided with a switching device for switching the moving position of the movable door body; the first sliding assembly comprises a plurality of friction reducing wheels which are arranged on the inner top surface of the door frame at intervals; the plurality of friction reducing wheels are arranged along the length direction of the fixed door body and are positioned on one side of the fixed door body in the width direction. The invention has the effects that the movable door body is convenient to move and saves more labor.

Description

Translation door structure

Technical Field

The invention relates to the technical field of sliding doors, in particular to a sliding door structure.

Background

At present, the translation door is one of the door body structure, and the translation through the door body realizes the switch operation, compares with the push-and-pull door, and the translation door can reduce the shared space to outside when the door body switch.

The general large-scale building can adopt the copper door body, because the copper door matter is heavy, and the size is great, when carrying out switch operation to the door body, the not convenient for remove the door body, waste time and energy.

Disclosure of Invention

The invention aims to provide a translation door structure, wherein a movable door body of the translation door structure is convenient to move and saves more labor.

The technical purpose of the invention is realized by the following technical scheme:

a sliding door structure comprises a door frame, a fixed door body and a movable door body, wherein the fixed door body and the movable door body are arranged in the door frame; a second sliding chute is formed in the bottom surface of the movable door body along the length direction; one side of the first sliding chute, which is close to the fixed door body, penetrates through the side wall of the movable door body; a first sliding assembly in sliding fit with the first sliding chute is arranged on the inner top surface of the door frame; a second sliding assembly is arranged in the second sliding groove along the length direction; the top surface of the door frame is provided with a switching device for switching the moving position of the movable door body; the first sliding assembly comprises a plurality of friction reducing wheels which are arranged on the inner top surface of the door frame at intervals; the plurality of friction reducing wheels are arranged along the length direction of the fixed door body and are positioned on one side of the fixed door body in the width direction.

Through adopting above-mentioned technical scheme, set up first slip subassembly and second slip subassembly respectively about the dodge gate body, can conveniently remove the dodge gate body for can be light laborsaving more when the switch door. The switching device is arranged, the moving position of the movable door body can be switched, and when the door is closed, the movable door body is pulled to move, so that the movable door body moves from the position attached to the inner side wall of the door frame to the position attached to one side, away from the inner side wall of the door frame, of the movable door body and the fixed door body; when the door is opened, the movable door body is pulled to enable one side of the movable door body to be attached to the inner side wall of the door frame, the movable door body is overlapped with the fixed door body, the movable door body can be closely attached to the fixed door body after moving, occupied space can be saved, and after the door is closed, the whole smoothness is good.

The present invention in a preferred example may be further configured to: the top surface of the door frame is provided with a first guide rail and a second guide rail which is parallel to the first guide rail and is arranged at intervals; inclined rails are arranged at the ends, away from the door frame, of the first guide rail and the second guide rail; the other end of the inclined rail is obliquely arranged towards one side close to the fixed door body; the switching device comprises a fixed seat fixed on the inner top surface of the door frame, a gear rotatably arranged on the fixed seat, a rack meshed with the gear, and two steering assemblies respectively arranged in the first guide rail and the second guide rail in a sliding manner; the tooth width of the gear is larger than that of the rack; the length direction of the rack is consistent with that of the door frame; a connecting block is fixed at one end of the rack, and the length direction of the connecting block is perpendicular to that of the rack; the connecting block is rotationally connected with a steering assembly which is arranged in the first guide rail in a sliding manner; the lower end face of the rack is positioned at the position of the rack, which is far away from the connecting block, and is rotationally connected with a steering assembly which is arranged in the second guide rail in a sliding manner; when the two steering assemblies are positioned at the end parts of the corresponding inclined rails, the movable door body and the fixed door body are positioned on the same vertical plane; and a connecting piece is fixed at one side of the movable door body and close to the top of the movable door body, and the two steering assemblies are rotationally connected with the connecting piece.

Through adopting above-mentioned technical scheme, set up first guide rail and second guide rail, can conveniently switch the state of the activity door body. When closing the door, two turn to the subassembly and remove along first guide rail and second guide rail, when two turned to the subassembly and removed the ramp respectively in for the rack that is connected with two steering assembly is close to the one side of the fixed door body, thereby drives one side of the movable door body and the one side laminating that the fixed door body deviates from the door frame inside wall. The arrangement of the rack and the gear can improve the connection between the movable door body and the door frame, so that the movable door body cannot easily slide. The tooth width of the gear is set to be larger than that of the rack, so that the gear can be always meshed with the rack in the moving process of the movable door body. The connecting block is arranged, so that the parallel state of the rack with the fixed door body can be always kept in the process that the movable door body moves, and the movable door body can move more smoothly.

The present invention in a preferred example may be further configured to: the connecting piece comprises a first right-angle plate and a second right-angle plate arranged at intervals with the first right-angle plate; one side of the first straight angle plate is fixedly connected with one side of the movable door body, and the other side of the first straight angle plate is rotatably connected with the bottom of a steering assembly arranged in the first guide rail in a sliding manner; one edge of the second right-angle plate is fixedly connected with one side of the movable door body, and the other edge of the second right-angle plate is rotatably connected with the bottom of a steering assembly which is slidably arranged in the second guide rail; the length of one side of the first right-angle plate connected with the steering assembly is smaller than that of one side of the second right-angle plate connected with the steering assembly.

Through adopting above-mentioned technical scheme, set up first right-angle board and second right-angle board, can make the activity door body slide along first slip subassembly, can not take place to interfere with auto-change over device's activity.

The present invention in a preferred example may be further configured to: the steering assembly comprises a sliding seat positioned above the first guide rail and the second guide rail, a sliding wheel which is rotatably arranged below the sliding seat and is in rolling fit with the first guide rail and the second guide rail, two fixed rods which are arranged on the lower end face of the sliding seat and are close to the two ends of the sliding seat, a guide wheel which is rotatably arranged on the fixed rods and is in rolling fit with the outer side walls of the first guide rail and the second guide rail, and a limiting plate which is fixed at the lower end of the fixed rods and is attached to the outer side walls of the first guide rail and the second; avoidance grooves are formed in the inner sides of the joints of the inclined rails and the first guide rail and the inner sides of the joints of the inclined rails and the second guide rail; the length of the avoiding groove is greater than that of the limiting plate; the lower end face of the sliding seat is provided with a connecting rod; the lower end of the connecting rod is rotatably connected with the first right-angle plate and the second right-angle plate.

Through adopting above-mentioned technical scheme, the slide overlap joint in the up end of first guide rail and second guide rail, can make the movable pulley all the time with first guide rail or second guide rail roll cooperation, frictional force when reducing the removal activity door body is favorable to guaranteeing the rack all the time with gear engagement transmission for it is more smooth and easy to move the door action. Set up the limiting plate, produce when can effectively reducing the removal activity door body and rock for the activity door body removes more steadily. The avoidance groove is formed, so that the guide wheel (544) can smoothly rotate when passing through the joint of the inclined rail and the first guide rail or the second guide rail, and the sliding wheel moves into the inclined rail.

The present invention in a preferred example may be further configured to: the outer side walls of the first guide rail and the second guide rail are provided with guide grooves along the length direction; the circumferential direction of the guide wheel (544) protrudes outwards to form a limiting ring matched with the guide groove.

Through adopting above-mentioned technical scheme, set up guide way and spacing ring, can further improve and turn to being connected of subassembly and first guide rail and second guide rail, conveniently guide the activity door body and turn to.

The present invention in a preferred example may be further configured to: and one side of the fixed door body, which is attached to the movable door body, is provided with inclined planes which are matched with each other.

Through adopting above-mentioned technical scheme, the one side that contacts at the fixed door body and the activity door body sets up the inclined plane, is favorable to increasing area of contact between them for the activity door body is closing the back, and the structural seal nature of whole door is good. In addition, the inclined surface can ensure that the movable door body can be smoothly switched when the movable door body is closed, so that the movable door body can be flush with the fixed door body.

The present invention in a preferred example may be further configured to: a handle is arranged on one side of the movable door body; the handle comprises a fixed seat fixed on the movable door body and a decorative plate arranged on the fixed seat; the fixed seat comprises a first panel fixed on the movable door body, a second panel vertically arranged on one side of the first panel, which is away from the edge of the movable door body, and a third panel vertically arranged on the second panel and parallel to the first panel; the length of the third panel is less than the length of the first panel; the decorative board is arranged on one side, away from the first panel, of the third panel, and the length of the decorative board is the same as that of the first panel.

Through adopting above-mentioned technical scheme, set up the handle, conveniently push-and-pull the activity door body. Through setting up the fixing base, can the decorative board of easy to assemble, not only have pleasing to the eye comfortable effect, can also conveniently carry out the switching action to the dodge gate body.

The present invention in a preferred example may be further configured to: one side of the decorative plate close to the third panel is provided with a horizontally arranged dovetail strip; a dovetail groove matched with the dovetail strip is formed in the third panel; the groove wall of the dovetail groove penetrates through one side, away from the second panel, of the third panel; the dovetail strips are arranged in a plurality at intervals along the height direction of the decorative plate.

Through adopting above-mentioned technical scheme, set up dovetail and dovetail, can further improve the joint strength of decorative board and fixing base, and dovetail that the level set up can guarantee that the decorative board is difficult for breaking away from with the fixing base emergence when opening and shutting the door through the decorative board.

The present invention in a preferred example may be further configured to: the second sliding assembly comprises a mounting plate fixed on the upper groove wall of the second sliding groove, a base arranged in the second sliding groove and a universal roller rotatably arranged on the base; the base is provided with a telescopic rod; the top of the telescopic rod is fixed with the mounting plate.

Through adopting above-mentioned technical scheme, set up universal gyro wheel, can freely switch when the dodge gate body switches the position, can not form by the motion of the dodge gate body and interfere, set up the telescopic link, produced vibrations have certain shock attenuation effect when moving the dodge gate body, when the dodge gate body meets the barrier, can carry out certain flexible.

In conclusion, the invention has the following beneficial effects:

1. the switching device is arranged, the moving position of the movable door body can be switched, when the door is closed, the movable door body is pulled to move, so that the movable door body moves from the position attached to the inner side wall of the door frame to the position where the movable door body is attached to one side, away from the inner side wall of the door frame, of the fixed door body, when the door is opened, one side of the movable door body is attached to the inner side wall of the door frame by pulling the movable door body, the movable door body is overlapped with the fixed door body, and occupied space;

2. the sliding seat is lapped on the upper end surfaces of the first guide rail and the second guide rail, so that the sliding wheel can be always in rolling fit with the first guide rail or the second guide rail, the friction force when the movable door body is moved is reduced, the rack is always in meshing transmission with the gear, and the door moving action is smoother;

3. set up dovetail and dovetail, can further improve the joint strength of decorative board and fixing base, and dovetail and the dovetail that the level set up can guarantee that the decorative board is difficult for taking place to break away from with the fixing base when opening and shutting the door through the decorative board.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic structural diagram of a switching device according to an embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the closing of the movable door body of the embodiment;

FIG. 5 is a schematic view of a bottom structure of the moveable door body of the embodiment;

fig. 6 is an enlarged schematic view of a portion B in fig. 1.

Reference numerals: 1. a door frame; 11. a first guide rail; 111. a guide groove; 112. an avoidance groove; 12. a second guide rail; 13. a ramp; 2. fixing the door body; 3. a movable door body; 31. a first chute; 32. a second chute; 4. a first slide assembly; 41. a friction reducing wheel; 5. a switching device; 51. a fixed seat; 52. a gear; 53. a rack; 531. connecting blocks; 54. a steering assembly; 541. a slide base; 542. a sliding wheel; 543. fixing the rod; 544. a guide wheel; 545. a limiting plate; 546. a limiting ring; 547. a connecting rod; 6. a connecting member; 61. a first gusset; 62. a second rectangular plate; 7. a second slide assembly; 71. mounting a plate; 72. a telescopic rod; 73. a base; 74. a universal roller; 8. a handle; 81. a mounting seat; 811. a first panel; 812. a second panel; 813. a third panel; 814. a dovetail groove; 82. a decorative plate; 821. a dovetail strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the sliding door structure disclosed by the invention comprises a movable door body 3 arranged in a door frame 1. One side of the fixed door body 2 and one side of the movable door body 3 which are attached to each other are provided with inclined planes which are matched with each other.

Referring to fig. 2, a first chute 31 is formed in the top surface of the movable door body 3 along the length direction, and one side of the first chute 31, which is close to the fixed door body 2, penetrates through the side wall of the movable door body 3.

Referring to fig. 2, a first sliding assembly 4 is installed on an inner top surface of the doorframe 1. The first sliding unit 4 includes a plurality of friction reducing wheels 41 engaged with the first sliding groove 31, and in order to prevent the friction reducing wheels 41 from interfering with the movement of the movable door 3, two friction reducing wheels 41 are preferably used, and the two friction reducing wheels 41 are spaced apart from each other in the longitudinal direction of the door frame 1. The friction reducing wheels 41 extend to one side of the fixed door body 2 in the width direction through mounting frames mounted on the door frame 1, and the two friction reducing wheels 41 are close to the side wall of the door frame 1. When the door is closed, the upper end of the movable door body 3 can move along the friction reducing wheel 41, so that the friction force generated when the movable door body 3 moves is reduced, and the door opening and closing action is convenient.

Referring to fig. 2, a first guide rail 11 and a second guide rail 12 are fixedly installed on an inner top surface of the doorframe 1. One end of each of the first guide rail 11 and the second guide rail 12 is fixed on the upper end surface of the upright post of the door frame 1. Inclined rails 13 are formed at the ends, away from the fixed door body 2, of the first guide rail 11 and the second guide rail 12. The other end of the inclined rail 13 is inclined toward the side close to the fixed door body 2.

Referring to fig. 2, in order to facilitate switching of the moving position of the movable door body 3, the switching device 5 is installed on the inner top surface of the door frame 1, so that the movable door body 3 can be located on the same vertical plane with the fixed door body 2 after being closed, the overall smoothness is better when the door is closed, and the sealing performance is strong. The switching device 5 includes a fixed base 51, a gear 52, a rack 53, and a steering assembly 54.

Referring to fig. 2 and 3, the fixing base 51 is fixedly installed on the top surface of the door frame 1, and two fixing bases 51 are arranged at intervals along the width direction of the door frame 1. The gear 52 is rotatably disposed between the two fixed seats 51. The longitudinal direction of the rack 53 coincides with the longitudinal direction of the door frame 1. The rack 53 is engaged with the gear 52 and is located below the gear 52. In order to ensure that the gear 52 and the rack 53 are always meshed, the tooth width of the gear 52 is larger than that of the rack 53. Two steering assemblies 54 are provided, and the two steering assemblies 54 are slidably disposed in the first guide rail 11 and the second guide rail 12, respectively. One end of the rack 53 is fixed with a connecting block 531, and the length direction of the connecting block 531 is perpendicular to the length direction of the rack 53. One end of the connecting block 531 is rotatably connected to a steering assembly 54 slidably disposed in the first guide rail 11. The lower end surface of the rack 53 and the position of the rack 53 departing from the connecting block 531 are rotatably connected with a steering component 54 which is slidably arranged in the second guide rail 12.

Referring to fig. 3, the steering assembly 54 includes a slider 541, a sliding wheel 542, a fixing lever 543, a guide wheel 544, and a position-limiting plate 545. The slider 541 overlaps the first rail 11 and the second rail 12 and is slidably engaged with the upper portions of the first rail 11 and the second rail 12. A connecting rod 547 is vertically fixed on the lower end surface of the sliding base 541 and located on one side of the first rail 11 and the second rail 12. The sliding wheel 542 is rotatably disposed under the sliding seat 541 and is in rolling engagement with the first rail 11 and the second rail 12. The fixing rods 543 are vertically fixed to the lower end surface of the sliding seat 541, and two fixing rods 543 are arranged, and the two fixing rods 543 are respectively close to two ends of the sliding seat 541. The guide wheel 544 is rotatably disposed on the fixing rod 543 and is in rolling fit with the outer side walls of the first guide rail 11 and the second guide rail 12. The outer side walls of the first guide rail 11 and the second guide rail 12 are both provided with a guide groove 111 along the length direction, and the circumferential direction of the guide wheel 544 protrudes outwards to form a limit ring 547 matched with the guide groove 111. The limiting plate 545 is fixed in the lower end of the fixing rod 543, and one side of the limiting plate 545 is in sliding fit with the outer side walls of the first guide rail 11 and the second guide rail 12. Avoidance grooves 112 are formed in the inner sides of the joints of the inclined rails 13 and the first guide rail 11 and the inner sides of the joints of the inclined rails 13 and the second guide rail 12. The length of the escape groove 112 is greater than that of the limit plate 545.

Referring to fig. 2 and 3, the two steering assemblies 54 are connected to one side of the movable door body 3 through a connecting piece 6. The connector 6 comprises a first gusset 61 and a second gusset 62. One side of the first straight angle plate 61 is fixedly connected with one side of the movable door body 3, and the other side of the first straight angle plate 61 is rotatably connected with the lower end of a connecting rod 547 of the steering assembly 54 which is slidably arranged in the first guide rail 11. The second right-angle plate 62 and the first right-angle plate 61 are arranged at intervals, one edge of the second right-angle plate 62 is fixedly connected with one side of the movable door body 3, and the other edge of the second right-angle plate 62 is rotatably connected with the lower end of a connecting rod 547 of the steering assembly 54 arranged in the second guide rail 12 in a sliding manner. The length of one edge of the first gusset 61 connected to the steering assembly 54 is less than the length of one edge of the second gusset 62 connected to the steering assembly 54.

Referring to fig. 3 and 4, when the door is opened, the two steering assemblies 54 are respectively located at the end portions of the first guide rail 11 and the second guide rail 12, which are away from the inclined rail 13, the movable door body 3 and the fixed door body 2 are arranged in parallel, and one side of the movable door body 3 is attached to the inner side wall of the door frame 1. When the door is closed, the two steering assemblies 54 are both located at the end portions of the corresponding inclined rails 13, the movable door body 3 and the fixed door body 2 are located on the same vertical plane, and two sides of the movable door body 3 are flush with two sides of the fixed door body 2.

Referring to fig. 5, a second chute 32 is formed on the bottom surface of the movable door 3 along the longitudinal direction. A plurality of second sliding members 7 are fixed in the second sliding groove 32 along the longitudinal direction. The second sliding assembly 7 comprises a mounting plate 71, a telescopic rod 72, a base 73 and a universal roller 74. The mounting plate 71 is fixedly mounted to the inner top surface of the second chute 32 by bolts. One end of the telescopic rod 72 is fixedly connected with the lower end face of the mounting plate 71, and the other end of the telescopic rod 72 is fixedly connected with the upper end face of the base 73. The plurality of telescopic rods 72 are uniformly arranged along the lower end face of the mounting plate 71, so that the universal rollers 74 are uniformly stressed when being vibrated. The universal roller 74 is rotatably disposed on the lower end surface of the base 73.

Referring to fig. 6, a handle 8 is fixedly installed at one side of the movable door body 3. The handle 8 includes a mount 81 and a decorative plate 82. The mount 81 is fixed to the movable door 3 by bolts. The mount 81 includes a first panel 811, a second panel 812, and a third panel 813. The first panel 811 is fixed to the movable door 3 by bolts. The second panel 812 is perpendicularly welded to the side of the first panel 811 facing away from the edge of the movable door body 3. The third panel 813 is vertically disposed on the second panel 812, and the third panel 813 is parallel to the first panel 811. The length of the third panel 813 is smaller than that of the first panel 811. The third panel 813 is provided with a dovetail groove 814 along the length direction, and a groove wall of the dovetail groove 814 penetrates through a side of the third panel 813 away from the second panel 812. The dovetail grooves 814 are provided two at an interval in the height direction of the third panel 813. The length of the decorative plate 82 is the same as that of the first panel 811. A dovetail 821 matched with the dovetail groove 814 is fixed on one side of the decorative plate 82 close to the third panel 813. Glue is applied to one side of the decorative plate 82, and the dovetail strip 821 is inserted into the dovetail groove 814 from one side of the third panel 813, so that the decorative plate 82 and the third panel 813 are fixed.

The implementation principle of the embodiment is as follows: when closing the door, at first pull the movable door body 3 through handle 8, make the movable door body 3 remove from the position with the laminating of door frame 1 inside wall, the auto-change over device 5 that the upper end of the movable door body 3 set up can guide the movable door body 3 to carry out horizontal migration, two turn to subassembly 54 and remove along first guide rail 11 and second guide rail 12, when two turn to subassembly 54 and remove respectively in the inclined rail 13, make and turn to the rack 53 that subassembly 54 is connected to two and be close to one side of the fixed door body 2, thereby drive one side of the movable door body 3 and the laminating of one side that the fixed door body 2 deviates from the door frame 1 inside wall.

When the door is opened, the two steering assemblies 54 enter the first guide rail 11 and the second guide rail 12 along the inclined rails 13, so that the movable door body 3 and the fixed door body 2 are not located on the same horizontal plane, the movable door body 3 is continuously pulled, the movable door body 3 moves to the position attached to the inner side wall of the door frame 1 along the first guide rail 11 and the second guide rail 12, the movable door body 3 coincides with the fixed door body 2, and the door opening action is completed.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a translation door structure, includes door frame (1) and sets up fixed door body (2) and the activity door body (3) in door frame (1), its characterized in that: a first sliding chute (31) is formed in the top surface of the movable door body (3) along the length direction; a second sliding chute (32) is formed in the bottom surface of the movable door body (3) along the length direction; one side of the first sliding chute (31) close to the fixed door body (2) penetrates through the side wall of the movable door body (3); a first sliding component (4) in sliding fit with the first sliding chute (31) is arranged on the inner top surface of the door frame (1); a second sliding component (7) is arranged in the second sliding groove (32) along the length direction; the top surface of the door frame (1) is provided with a switching device (5) for switching the moving position of the movable door body (3); the first sliding assembly (4) comprises a plurality of friction reducing wheels (41) which are arranged on the inner top surface of the door frame (1) at intervals; the plurality of the friction reducing wheels (41) are arranged along the length direction of the fixed door body (2) and are positioned on one side of the fixed door body (2) in the width direction.

2. A sliding door structure according to claim 1, characterized in that: the top surface of the door frame (1) is provided with a first guide rail (11) and second guide rails (12) which are parallel to the first guide rail (11) and are arranged at intervals; inclined rails (13) are arranged at the ends, departing from the door frame (1), of the first guide rail (11) and the second guide rail (12); the other end of the inclined rail (13) is obliquely arranged towards one side close to the fixed door body (2); the switching device (5) comprises a fixed seat (51) fixed on the top surface of the door frame (1), a gear (52) rotatably arranged on the fixed seat (51), a rack (53) meshed with the gear (52) and two steering assemblies (54) respectively arranged in the first guide rail (11) and the second guide rail (12) in a sliding manner; the tooth width of the gear (52) is larger than that of the rack (53); the length direction of the rack (53) is consistent with that of the door frame (1); one end of the rack (53) is fixed with a connecting block (531), and the length direction of the connecting block (531) is perpendicular to the length direction of the rack (53); the connecting block (531) is rotatably connected with a steering assembly (54) which is arranged in the first guide rail (11) in a sliding manner; the lower end face of the rack (53) is positioned at the position, deviating from the connecting block (531), of the rack (53) and is rotationally connected with a steering assembly (54) arranged in the second guide rail (12) in a sliding manner; when the two steering assemblies (54) are positioned at the end parts of the corresponding inclined rails (13), the movable door body (3) and the fixed door body (2) are positioned on the same vertical plane; and a connecting piece (6) is fixed at a position on one side of the movable door body (3) and close to the top of the movable door body (3), and the two steering assemblies (54) are rotatably connected with the connecting piece (6).

3. A sliding door structure according to claim 2, characterized in that: the connecting piece (6) comprises a first right-angle plate (61) and a second right-angle plate (62) arranged at intervals with the first right-angle plate (61); one side of the first straight angle plate (61) is fixedly connected with one side of the movable door body (3), and the other side of the first straight angle plate (61) is rotatably connected with the bottom of a steering assembly (54) which is arranged in the first guide rail (11) in a sliding manner; one edge of the second right-angle plate (62) is fixedly connected with one side of the movable door body (3), and the other edge of the second right-angle plate (62) is rotatably connected with the bottom of a steering assembly (54) which is arranged in the second guide rail (12) in a sliding manner; the length of one side of the first right-angle plate (61) connected with the steering assembly (54) is smaller than that of one side of the second right-angle plate (62) connected with the steering assembly (54).

4. A sliding door structure according to claim 2, characterized in that: the steering assembly (54) comprises a sliding seat (541) positioned above the first guide rail (11) and the second guide rail (12), a sliding wheel (542) which is rotatably arranged below the sliding seat (541) and is in rolling fit with the first guide rail (11) and the second guide rail (12), two fixing rods (543) which are arranged on the lower end face of the sliding seat (541) and are close to the two ends of the sliding seat (541), a guide wheel (544) which is rotatably arranged on the fixing rods (543) and is in rolling fit with the outer side walls of the first guide rail (11) and the second guide rail (12), and a limiting plate (545) which is fixed at the lower end of the fixing rods (543) and is attached to the outer side walls of the first guide rail (11) and the second guide rail (; avoidance grooves (112) are formed in the inner sides of the joints of the inclined rails (13) and the first guide rail (11) and the inner sides of the joints of the inclined rails (13) and the second guide rail (12); the length of the avoiding groove (112) is greater than that of the limiting plate (545); a connecting rod (547) is arranged on the lower end face of the sliding seat (541); the lower end of the connecting rod (547) is rotatably connected with the first right-angle plate (61) and the second right-angle plate (62).

5. A sliding door structure according to claim 4, characterized in that: the outer side walls of the first guide rail (11) and the second guide rail (12) are provided with guide grooves (111) along the length direction; the circumferential direction of the guide wheel (544) protrudes outwards to form a limiting ring (546) matched with the guide groove (111).

6. A sliding door structure according to claim 1, characterized in that: and inclined planes matched with each other are arranged on one side of the fixed door body (2) and one side of the movable door body (3) which are attached to each other.

7. A sliding door structure according to claim 1, characterized in that: a handle (8) is arranged on one side of the movable door body (3); the handle (8) comprises a fixed seat (51) fixed on the movable door body (3) and a decorative plate (82) arranged on the fixed seat (51); the fixed seat (51) comprises a first panel (811) fixed on the movable door body (3), a second panel (812) vertically arranged on one side of the first panel (811) departing from the edge of the movable door body (3), and a third panel (813) vertically arranged on the second panel (812) and parallel to the first panel (811); the length of the third panel (813) is less than the length of the first panel (811); the decorative plate (82) is arranged on one side, away from the first panel (811), of the third panel (813), and the length of the decorative plate (82) is the same as that of the first panel (811).

8. A sliding door structure according to claim 7, characterized in that: one side of the decorative plate (82) close to the third panel (813) is provided with a horizontally arranged dovetail strip (821); a dovetail groove (814) matched with the dovetail strip (821) is formed in the third panel (813); the groove wall of the dovetail groove (814) penetrates through one side, away from the second panel (812), of the third panel (813); the dovetail strips (821) are arranged at intervals along the height direction of the decorative plate (82).

9. A sliding door structure according to claim 1, characterized in that: the second sliding assembly (7) comprises a mounting plate (71) fixed on the upper groove wall of the second sliding groove (32), a base (73) arranged in the second sliding groove (32) and a universal roller (74) rotatably arranged on the base (73); the base (73) is provided with a telescopic rod (72); the top of the telescopic rod (72) is fixed with the mounting plate (71).