Guide roller structure of bypass sliding door and cabinet body having same

Abstract

A guide roller structure of a bypass sliding door and a cabinet body having same. The guide roller structure comprises: a first guide roller mechanism (1), used for sliding along a first guide rail (61) provided on the inner side of a bypass sliding door body; a second guide roller mechanism (2), used for sliding along a second guide rail (51) provided on the upper inner side wall or the lower inner side wall of the cabinet body; a first support member (3), one end of the first support member (3) being connected to the first guide roller mechanism (1); and a second support member (4), one end of the second support member (4) being hinged to the other end of the first support member (3), and the other end of the second support member (4) being hinged to the second guide roller mechanism (2). The first support member (3) and / or the second support member (4) is provided with a limiting structure for limiting the angle of hinge rotation, thereby keeping a constant maximum angle when the first guide roller mechanism (1) slides and / or the second guide roller mechanism (2) slides.

Description

A flat sliding door guide wheel structure and cabinet with the same Technical Field

[0001] The present application relates to the technical field of guide wheels for sliding doors, and in particular to a guide wheel structure for sliding doors and a cabinet having the same. Background Art

[0002] Among various home cabinet door opening methods, sliding doors are a common and highly space-efficient option, making them highly popular. When closed, all door panels of a sliding door lie flat, ensuring a tight seal and a neat, aesthetically pleasing appearance. However, when opened, the panels stagger, requiring specific requirements for their trajectory.

[0003] For a sliding door, the sliding of the door requires pulleys installed at the upper and lower ends of the door. The pulley at one end guides the door, while the pulley at the other end weighs and pushes the door. In order to prevent jamming, the connection between the fixed box and the guide link of the existing guide pulley is movable. Therefore, when the door panel is opened, the end of the door panel where the guide wheel is set is prone to shaking, affecting the user experience and the stability of the structure. An existing solution is to use two support mechanisms for stable sliding, but the structure is complex and occupies a large space inside the cabinet, causing some discomfort to users when using the cabinet.

[0004] Summary of the Invention

[0005] To overcome at least one of the above-mentioned drawbacks of the prior art, the present application provides a guide wheel structure for a sliding door and a cabinet body having the same. This structure addresses the space occupied by the guide wheel within the cabinet and, at the same time, provides a limit structure at the hinge to restrict the hinge angle, thereby maintaining relative stability between the first support member and the second support member during sliding, thereby improving the stability of the sliding door body during movement.

[0006] The technical solution adopted by this application to solve the problem is:

[0007] A guide wheel structure for a sliding door comprises: a first guide wheel mechanism, the first guide wheel mechanism being used to slide along a first guide rail on the inner side of the sliding door body; a second guide wheel mechanism, the second guide wheel mechanism being used to slide along a second guide rail on the upper side wall or the lower side wall of a cabinet body; a first support member, one end of the first support member being connected to the first guide wheel mechanism; a second support member, one end of the second support member being hinged to the other end of the first support member, and the other end of the second support member being hinged to the second guide wheel mechanism; wherein the first support member and / or the second support member are provided with a limiting structure for limiting the hinge rotation angle, so that when the first guide wheel mechanism slides and / or when the second guide wheel mechanism slides, the maximum angle between the first support member and the second support member remains constant.

[0008] By adopting the above-mentioned scheme, when the first guide wheel mechanism and the second guide wheel mechanism slide in the same direction, the rotation between the first support member and the second support member can be limited by the limiting structure, thereby achieving a stable support effect, ensuring that the first guide wheel mechanism and the second guide wheel mechanism do not shake when sliding, and the overall structure is beautiful and occupies less space.

[0009] Furthermore, a flexible structure is provided at the connection between one end of the first support member and the first guide wheel mechanism, and the flexible structure includes a first extension edge and a second extension edge located on both sides of the hinge. One of the first extension edge and the second extension edge abuts against the first guide wheel mechanism, and a gap is left between the other and the first guide wheel mechanism, so that the first support member has space to rotate away from the first guide wheel mechanism.

[0010] By adopting the above solution, the gap can provide a certain rotation fine-tuning space between the first guide wheel mechanism and the first support member, so as to prevent the guide wheel from getting stuck and improve the smoothness of the guide wheel sliding.

[0011] Furthermore, the limiting structure includes a second limiting structure located at the other end of the first support member or one end of the second support member, the second limiting structure includes a third extension edge and a fourth extension edge located on both sides of the hinge, and / or the limiting structure includes a third limiting structure located at the other end of the second support member, the third limiting structure includes a fifth extension edge and a sixth extension edge located on both sides of the hinge.

[0012] By adopting the above solution, the rotation angle between the first support member and the second support member can be limited. Therefore, when the first guide wheel mechanism and the second guide wheel mechanism slide to one side, the relative stability between the first support member and the second support member can be maintained, thereby providing a stable support effect.

[0013] Furthermore, the third extension edge and the fourth extension edge control the maximum rotation angle between the second support member and the first support member to be 90°, and / or the fifth extension edge and the sixth extension edge control the maximum rotation angle between the second support member and the second guide wheel mechanism to be 90°.

[0014] By adopting the above solution, it is beneficial to control the maximum rotation range of the hinge between the second support member and the second guide wheel mechanism to 90°, thereby achieving rotation stability between the first support member and the second support member, and between the second support member and the second guide wheel mechanism, thereby completing the folding or stretching effect.

[0015] Furthermore, the second support member and the second guide wheel mechanism are provided with an elastic abutment, one end of the elastic abutment is rotatably connected to the second support member, and the other end is rotatably connected to the second guide wheel mechanism. The elastic abutment is used to provide a supporting force for one end of the second support member to prevent it from rotating in the sliding direction of the second guide wheel mechanism.

[0016] By adopting the above solution, a certain thrust can be provided to the second support member when the first guide wheel mechanism and the second guide wheel mechanism slide, thereby maintaining the hinge angle between the second support member and the second guide wheel mechanism.

[0017] Furthermore, the elastic abutment member includes: a kit shell, wherein one end of the first elastic kit is concave to form an accommodating cavity, and the other end is provided with a first bayonet, and the first bayonet is rotatably connected to the second guide wheel mechanism; a connector, wherein one end of the connector is inserted into the accommodating cavity, and the other end is provided with a second bayonet, and the second bayonet is rotatably connected to the second support member; and an elastic member, wherein the elastic member is located between the accommodating cavity and the connector, and is used to provide elastic force for both parties.

[0018] By adopting the above solution, stable elastic force can be provided on both sides.

[0019] Furthermore, an assembly clamping plate is provided between the second support member and the second guide wheel mechanism. The assembly clamping plate has an assembly cavity. The other end of the second support member and the elastic abutment member are located in the assembly cavity.

[0020] By adopting the above solution, the assembly splint is used to limit the elastic force direction of the elastic abutment and the hinge stability between the second support member and the second guide wheel mechanism, thereby avoiding excessive force during rotation and causing a force perpendicular to the elastic force direction of the elastic abutment.

[0021] Furthermore, the first guide wheel mechanism and the second guide wheel mechanism both include: a pulley base plate; at least two rollers, the rollers are mounted on the pulley base plate, and the wheel axles of the rollers are perpendicular to the pulley base plate, and the two or more rollers have relatively stable guide surfaces for rolling along the side walls of the first guide rail or the second guide rail.

[0022] By adopting the above solution, by designing the first guide wheel mechanism and the second guide wheel mechanism to have two guide surfaces, the first guide wheel mechanism and the second guide wheel mechanism can be made more stable and more evenly stressed when sliding in the first guide rail and the second guide rail, so that the sliding effect is smoother.

[0023] A cabinet with a sliding door guide wheel structure includes a cabinet body, a sliding door body, a first guide rail, a second guide rail, a load-bearing guide rail, a load-bearing pulley group and a sliding door guide wheel structure, wherein the load-bearing guide rail is assembled at the bottom of the cabinet body, the first guide rail is installed on the upper side wall inside the cabinet body, the second guide rail is installed above the inner side wall of the sliding door body, the bottom of the lying door body is connected to the load-bearing pulley group, the load-bearing pulley group slides along the load-bearing guide rail to drive the sliding door body to move, the first support member and the second support member maintain a certain angle and slide along the first guide rail and / or the second guide rail to provide sliding guidance for the upper part of the sliding door body.

[0024] By adopting the above solution, the angle between the first support member and the second support member can be controlled to remain stable when the sliding door body opens and moves horizontally, thereby providing a stable support and guiding effect for the sliding door body, greatly improving the stability of the sliding door body when opening, and reducing the shaking of the sliding door body itself.

[0025] Furthermore, an adjustable stop is provided near one end in the second guide rail, and a contraction space for accommodating the second support member is reserved between the adjustable stop and the end. The adjustable stop is used to control the maximum sliding distance of the second guide wheel mechanism in the second guide rail, so that the sliding distance of the sliding door body when opening or closing the door is equal to the sum of the sliding distance of the first guide wheel mechanism in the first guide rail, the sliding distance of the first guide wheel mechanism in the second guide rail and the arc length of the rotation between the second support member and the second guide wheel mechanism. When the load-bearing pulley group contracts the sliding door body, the sliding door body contracts into the cabinet so that the second support member rotates to the contraction space and is aligned with the second guide rail.

[0026] By adopting the above solution, the folding and shrinking effect of the second support member can be achieved.

[0027] In summary, the present application provides a guide wheel structure for a sliding door and a cabinet having the same, which has the following technical effects:

[0028] 1. By providing a limiting structure at the intersection of the ends of the first support member and / or the intersection of the ends of the second support member, the rotation angle between the first support member and the second support member can be kept constant when the first guide wheel mechanism and / or the second guide wheel mechanism slides, thereby improving the supporting stability of the first support member and the second support member on the sliding door body and reducing the shaking of the sliding door body during the opening process;

[0029] 2. By providing an elastic abutment between the second support member and the second guide wheel mechanism, a certain abutment force can be provided to the second support member to prevent the second support member from shrinking and rotating during the sliding process, thereby improving the support stability of the second support member when the sliding door is closed;

[0030] 3. The connection structure between the first support member and the second support member is simple, occupies little space in the cabinet, and is exposed to the user's field of vision in a small proportion, which greatly improves the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic diagram of a three-dimensional structure of a cabinet according to an embodiment of the present application;

[0032] FIG2 is a schematic diagram of the three-dimensional structure of the bottom of the cabinet according to an embodiment of the present application;

[0033] FIG3 is a schematic diagram of the three-dimensional structure of the guide wheel according to an embodiment of the present application;

[0034] Figure 4 is an enlarged view of area A in Figure 3;

[0035] FIG5 is a schematic diagram of the exploded structure of the guide wheel according to an embodiment of the present application;

[0036] Figure 6 is an enlarged view of area B in Figure 5;

[0037] Figure 7 is an enlarged view of area C in Figure 5;

[0038] Figure 8 is an enlarged view of area D in Figure 5;

[0039] FIG9 is a diagram of the guide wheel structure of the embodiment of the present application in the state after the door is opened;

[0040] FIG10 is a diagram of the guide wheel structure of the embodiment of the present application in the closed door state.

[0041] The meanings of the reference numerals are as follows: 1. first guide wheel mechanism; 11. pulley base plate; 12. roller; 13. first guide wheel hinge portion; 131. first guide wheel hinge axis; 14. blocking platform; 2. second guide wheel mechanism; 21. assembly clamp; 211. assembly cavity; 212. first hinge axis; 213. second hinge axis; 3. first support member; 31. first support member hinge portion; 32. flexible structure; 321. first extension edge; 322. second extension edge; 33. right-angle rotation groove; 34. first support member hinge axis; 4. Second support member; 41. Second support member hinge joint; 42. Second limiting structure; 421. Third extension edge; 422. Fourth extension edge; 43. Third limiting structure; 431. Fifth extension edge; 432. Sixth extension edge; 44. Third hinge axis; 5. Cabinet body; 51. Second guide rail; 511. Contraction space; 52. Load-bearing guide rail; 53. Load-bearing pulley set; 6. Sliding door body; 61. First guide rail; 7. Limit block; 8. Adjustable block; 9. Elastic abutment; 91. Kit housing; 911. First bayonet; 92. Connector; 921. Second bayonet; 93. Elastic member. DETAILED DESCRIPTION

[0042] For better understanding and implementation, the technical solutions in the embodiments of the present application will be clearly and completely described and discussed below in conjunction with the drawings of the present application. Obviously, what is described here is only a part of the examples of the present application, not all the examples. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0043] In order to facilitate the understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present application.

[0044] In the description of this application, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0046] 1 to 10 , the present application discloses a guide wheel structure for a sliding door, comprising a first guide wheel mechanism 1, a second guide wheel mechanism 2, a first support member 3 and a second support member 4. The first guide wheel mechanism 1 is used to slide along a first guide rail 61 on the inner side of a sliding door body 6, and the second guide wheel mechanism 2 is used to slide along a second guide rail 51 on the upper side wall or the lower side wall of a cabinet body 5. The installation directions of the first guide rail 61 and the second guide rail 51 are consistent. The height direction of the cabinet body 5 is set as the Z-axis direction. The direction in which the sliding door body 6 extends out of or enters the cabinet body 5 when opening or closing the door is the Y-axis direction. The direction in which the sliding door body 6 moves horizontally to fold with another sliding door body 6 is the X-axis direction. The first guide rail 61 and the second guide rail 51 are set along the Z-axis direction. One end of the first support member 3 is aligned with the first guide wheel mechanism 1. Connection; one end of the second support member 4 is hinged to the other end of the first support member 3, and the other end of the second support member 4 is hinged to the second guide wheel mechanism 2; wherein, the first support member 3 and / or the second support member 4 is provided with a limiting structure for limiting the hinge rotation angle, so that when the first guide wheel mechanism 1 slides and / or when the second guide wheel mechanism 2 slides, the maximum angle between the first support member 3 and the second support member 4 remains constant, and can enable the first guide wheel mechanism 1 and the second guide wheel mechanism 2 to slide in the same direction, specifically when the sliding door body 6 slides along the X-axis direction to open the door, the rotation between the first support member 3 and the second support member 4 can be limited by the limiting structure, thereby achieving a stable support effect, and can ensure that the first guide wheel mechanism 1 and the second guide wheel mechanism 2 do not shake when sliding, and the overall structure is beautiful and occupies less space.

[0047] The first guide wheel mechanism 1 and the second guide wheel mechanism 2 each include a pulley base plate 11 and at least two rollers 12. The rollers 12 are mounted on the pulley base plate 11, and the axles of the rollers 12 are perpendicular to the pulley base plate 11. The two or more rollers 12 have relatively stable guide surfaces for rolling along the side walls of the first guide rail 61 or the second guide rail 51. In this embodiment, three rollers 12 are provided. By designing the first guide wheel mechanism 1 and the second guide wheel mechanism 2 to have two guide surfaces, the first guide wheel mechanism 1 and the second guide wheel mechanism 2 can simultaneously contact the side walls on both sides when sliding in the first guide rail 61 and the second guide rail 51, making the sliding more stable and the force more uniform, thereby achieving a smoother sliding effect. Of course, in some embodiments, only one roller 12 can be provided on the pulley base plate 11, which can also meet the sliding effect.

[0048] A flexible structure 32 is provided at the connection between one end of the first support member 3 and the first guide wheel mechanism 1, and the flexible structure 32 includes a first extension edge 321 and a second extension edge 322 located on both sides of the hinge. One of the first extension edge 321 and the second extension edge 322 is in contact with the first guide wheel mechanism 1, and a gap is left between the other and the first guide wheel mechanism 1, so that the first support member 3 has space to rotate away from the first guide wheel mechanism 1. Since the sliding door body 6 always remains parallel to the cabinet body 5 when opening or closing the door, which may cause the door to get stuck, the gap can provide a certain rotation fine-tuning space between the first guide wheel mechanism 1 and the first support member 3 to prevent the guide wheel from getting stuck and improve the smoothness of the guide wheel sliding.

[0049] Specifically, in this embodiment, as shown in Figures 3-6, the track groove of the first guide rail 61 is arranged in the cabinet body 5 along the Y axis, and the first guide wheel mechanism 1 slides along the track groove of the first guide rail 61 in the X axis direction. Limited stoppers 7 are provided at both ends of the track groove of the first guide rail 61 to prevent the first guide wheel mechanism 1 from sliding out of the track groove of the first guide rail 61. A first guide wheel hinge portion 13 is provided on the back side of the pulley base plate 11 of the first guide wheel mechanism 1, and the first guide wheel hinge portion 13 is provided with a first guide wheel hinge shaft 131 along the Z axis direction. One end of the first support member 3 is provided with a first support member hinge portion 31 hinged to the first guide wheel hinge shaft 131. The smart structure 32 is located at one end of the first support member 3. The smart structure 32 extends along the first support member hinge portion 31 to the back side of the pulley base plate 11 of the first guide wheel mechanism 1 to form a first extension edge 321 and a second extension edge 322. The wheel hinge portion 13 has a stop platform 14 on both sides for abutting against the first extension edge 321 and the second extension edge 322, respectively. The first extension edge 321 of the first extension edge 321 and the second extension edge 322 is longer than the second extension edge 322. The first extension edge 321 can always abut against the stop platform 14 of the first guide wheel mechanism 1 when the sliding door body 6 is closed, so that the first support member 3 is always parallel to the first guide rail 61 when the sliding door body 6 is closed; the second extension edge 322 can leave a gap between the stop platform 14 of the first guide wheel mechanism 1, so that when the sliding door body 6 is opened, the other end of the first support member 3 can slightly rotate in the direction close to the first guide rail 61 until the second extension edge 322 abuts against the stop platform 14 of the first guide wheel mechanism 1. The first support member 3 can slightly rotate in the range of an angle of 10°-30° to ensure that the first support member 3 and the first guide rail 61 do not contact each other when the sliding door body 6 is opened.

[0050] The limiting structure includes a second limiting structure 42 located at the other end of the first support member 3 or one end of the second support member 4, and the second limiting structure 42 includes a third extension edge 421 and a fourth extension edge 422 located on both sides of the hinge. The third extension edge 421 and the fourth extension edge 422 control the maximum rotation angle between the second support member 4 and the first support member 3 to 90°, and can limit the rotation angle between the first support member 3 and the second support member 4 to within the range of 0° to 90°. Therefore, when the first guide wheel mechanism 1 and the second guide wheel mechanism 2 slide to one side, the relative stability between the first support member 3 and the second support member 4 can be maintained, thereby providing a stable support effect.

[0051] Specifically, in this embodiment, referring to Figures 3, 4, 7 and 8, the second limiting structure 42 is located at one end of the second support member 4, and the other end of the first support member 3 is provided with a concave right-angle rotation groove 33, in which the first support member hinge shaft 34 is provided, and one end of the second support member 4 is provided with a second support member hinge head 41 inserted into the right-angle rotation groove 33 and hinged with the first support member hinge shaft 34. The second limiting structure 42 includes a third extending edge 421 and a fourth extending edge 422 located on both sides of the second support member hinge head 41, which are used to abut against the edges on both sides of the right-angle rotation groove 33, so that the rotation angle between the first support member 3 and the second support member 4 is within the range of 0° to 90°. When the sliding door body 6 is opened, the first support member 3 and the second support member 4 are rotated to open to 90°. At this time, the sliding door body 6 moves in the opening direction, and the third extending edge 421 abuts against the edge on one side of the right-angle rotation groove 33, so that the rotation angle between the first support member 3 and the second support member 4 remains unchanged at 90°.

[0052] Furthermore, the limiting structure includes a third limiting structure 43 located at the other end of the second support member 4, and the third limiting structure 43 includes a fifth extension edge 431 and a sixth extension edge 432 located on both sides of the hinge. The fifth extension edge 431 and the sixth extension edge 432 control the maximum rotation angle between the second support member 4 and the second guide wheel mechanism 2 to be 90°, which is conducive to controlling the hinge rotation range between the second support member 4 and the second guide wheel mechanism 2, and realizing the rotation of the second support member 4 to be perpendicular or parallel to the sliding direction of the second guide wheel mechanism 2.

[0053] Specifically, in this embodiment, referring to Figures 3, 4, and 7-10, the track groove of the second guide rail 51 is arranged in the cabinet body 5 along the Z axis, and the second guide wheel mechanism 2 slides in the X axis direction along the track groove of the second guide rail 51. Limited stoppers 7 are provided at both ends of the track groove of the second guide rail 51 to prevent the second guide wheel mechanism 2 from sliding out of the track groove of the second guide rail 51. An adjustable stopper 8 is provided at one end of the track groove of the second guide rail 51 close to the door closing movement direction. The adjustable stopper 8 is in contact with the track groove of the second guide rail 51. A contraction space 511 is reserved between the ends for accommodating the second support member 4, which can enable the second support member 4 to achieve a contraction effect after the sliding door body 6 slides to the closed state, and the contracted second support member 4 is aligned with the second guide rail 51; the adjustable block 8 is used to control the maximum sliding distance of the second guide wheel mechanism 2 in the second guide rail 51, so that the sliding distance of the sliding door body 6 when opening or closing is equal to the sliding distance of the first guide wheel mechanism 1 in the first guide rail 61, the sliding distance of the first guide wheel mechanism 2 in the second guide rail (5), and the distance between the second support member 4 and the second guide wheel mechanism (2). The sum of the arc lengths of rotation between the two guide wheel mechanisms 2 is provided with an assembly splint 21 on the back side of the pulley base plate 11 of the second guide wheel mechanism 2, and the assembly splint 21 has an assembly cavity 211, and the assembly cavity 211 is provided with a first hinge shaft 212 and a second hinge shaft 213 that pass through the assembly cavity 211, and the first hinge shaft 212 is used to be hinged to the other end of the second support member 4, and the fifth extension edge 431 and the sixth extension edge 432 of the third limiting structure 43 are respectively located on both sides of the hinge connection between the second support member 4 and the first hinge shaft 212, and are used to respectively hinge with the assembly cavity 211 The side edge of the second support member 4 abuts against the side edge of the assembly splint 21 to control the hinge angle range between the second support member 4 and the assembly splint 21 to be 0°-90°. When the sliding door body 6 is opened, the second support member 4 rotates from the contraction space 511 to be perpendicular to the second guide rail 51. At this time, the fifth extension edge 431 abuts against the edge of the assembly splint 21; when the sliding door body 6 is closed, one end of the second support member 4 rotates into the contraction space 511 of the second guide rail 51 until the sixth extension edge 432 abuts against the edge of the assembly splint 21. At this time, the contraction effect of the second support member 4 is completed, and the door is closed.

[0054] It should be noted that, since the rotatable space between the first support member 3 and the first guide wheel mechanism 1 is not large, and the first guide rail 61 and the second guide rail 51 always remain parallel, the minimum angle between the first support member 3 and the second support rod cannot be 0°.

[0055] Since each hinge of the sliding door body 6 is blocked by a limiting structure when the door is open, a stable state can be achieved. When the door is closed, due to the opposite forces, a structure is also required to prevent the intersection from rotating easily. Therefore, an elastic abutment 9 is provided between the second support member 4 and the second guide wheel mechanism 2. One end of the elastic abutment 9 is rotatably connected to the second support member 4, and the other end is rotatably connected to the second guide wheel mechanism 2. The elastic abutment 9 is used to provide a supporting force for one end of the second support member 4 to prevent it from rotating in the sliding direction of the second guide wheel mechanism 2, and can provide a certain thrust to the second support member 4 when the first guide wheel mechanism 1 and the second guide wheel mechanism 2 slide, thereby maintaining the hinge angle between the second support member 4 and the second guide wheel mechanism 2.

[0056] Specifically, in this embodiment, referring to Figures 4, 7 and 8, a third hinge shaft 44 is provided at the other end of the second support member 4 in the direction of the second hinge shaft 213, and the elastic abutment member 9 includes a kit shell 91, a plug-in member 92 and an elastic member 93 located therebetween. One end of the first elastic kit is concave to form a accommodating cavity, and the other end is provided with a first bayonet 911. The first bayonet 911 is rotatably engaged with the third hinge shaft 44. One end of the plug-in member 92 is inserted into the accommodating cavity, and the other end is provided with a second bayonet 921. The second bayonet 921 is rotatably engaged with the third hinge shaft 44 of the second support member 4; the elastic member 93 is located between the accommodating cavity and the plug-in member 92, and is used to provide elastic force for both parties. In this embodiment, the elastic member 93 adopts two springs. The elastic abutment 9 is clamped in the assembly cavity 211 of the assembly splint 21, and is used to limit the elastic force direction of the elastic abutment 9, while improving the hinge stability between the second support member 4 and the second guide wheel mechanism 2, and avoiding excessive force during rotation, resulting in a force perpendicular to the elastic force direction of the elastic abutment 9. When the sliding door body 6 is closed, one end of the second support rod will be pushed in the door closing direction by the first support rod. At this time, the elastic abutment 9 at the other end of the second support rod can provide an elastic force for the second support rod to prevent one end of the second support rod from rotating toward the second guide rail 51, until the second guide wheel mechanism 2 slides to the adjustable stopper 8. At this time, the force of the one end of the second support rod rotating toward the second guide rail 51 is greater than the elastic force provided by the elastic abutment 9, so that the one end of the second support rod will rotate toward the contraction space 511 of the second guide rail 51 to complete the contraction effect.

[0057] 1-4 , the present application also relates to a cabinet with a guide wheel structure for a sliding door, comprising a cabinet body 5, a sliding door body 6, a first guide rail 61, a second guide rail 51, a load-bearing guide rail 52, a load-bearing pulley set 53 and a guide wheel structure for a sliding door, wherein the load-bearing guide rail 52 is assembled at the bottom of the cabinet body 5, the first guide rail 61 is mounted on the upper side wall inside the cabinet body 5, the second guide rail 51 is mounted above the inner side wall of the sliding door body 6, the lower part of the lying door body is connected to the load-bearing pulley set 53, the load-bearing pulley set 53 slides along the load-bearing guide rail 52, and is used to drive the sliding door body 6 to move. When the sliding door body 6 is pulled out when opening the door, it drives the first guide rail 61 to move in the direction of opening the door. At this time, the first guide wheel mechanism 1 is stopped by the limit block 7 at one end of the first guide rail 61. The first support member 3 and the second support member 4 are resisted and pulled, so that the first support member 3 and the second support member 4 are in a pulled-apart state. At this time, the first support member 3 and the second support member 4 maintain a certain angle to drive the second guide wheel mechanism 2 to slide along the second guide rail 51 until the sliding door body 6 is fully opened; when the sliding door body 6 is closed, it drives the first guide rail 61 to move in the closing direction. At this time, the first guide wheel mechanism 1 slides to the other end of the first guide rail 61 and is resisted and pulled by the limit block 7 at the other end. The first support member 3 and the second support member 4 are kept at an unchanged angle by the elastic force of the elastic abutment 9, and at the same time, the second guide wheel mechanism 2 is pushed to slide along the second guide rail 51 until they abut against the adjustable block 8. The first support member 3 and the second support member 4 begin to shrink, and the sliding door body 6 is pushed into the cabinet body 5 to complete the closing state. The first support member 3 and the second support member 4 maintain a certain angle and slide along the first guide rail 61 and / or the second guide rail 51, which is used to provide a sliding guide for the upper part of the sliding door body 6, so that the angle between the first support member 3 and the second support member 4 can be controlled to remain stable when the sliding door body 6 is opened and translated, thereby providing a stable supporting and guiding effect for the sliding door body 6, greatly improving the stability of the sliding door body 6 when opening the door, and reducing the shaking of the sliding door body 6 when opening and closing the door.

[0058] In summary, the present application provides a guide wheel structure for a sliding door and a cabinet having the same, which has the following technical effects:

[0059] 1. By providing a limiting structure at the intersection of the ends of the first support member 3 and / or the intersection of the ends of the second support member 4, it is possible to maintain the rotation angle between the first support member 3 and the second support member 4 when the first guide wheel mechanism 1 and / or the second guide wheel mechanism 2 slides, thereby improving the supporting stability of the first support member 3 and the second support member 4 on the sliding door body 6 and reducing the shaking of the sliding door body 6 during the opening process;

[0060] 2. By providing an elastic abutment member 9 between the second support member 4 and the second guide wheel mechanism 2, a certain abutment force can be provided to the second support member 4, preventing the second support member 4 from shrinking and rotating during the sliding process, thereby improving the support stability of the second support member 4 when the sliding door body 6 is in the closed state;

[0061] 3. The connection structure between the first support member 3 and the second support member 4 is simple, occupies little space in the cabinet, and is exposed to the user's field of vision in a small proportion, which greatly improves the user's experience.

[0062] The technical means disclosed in the present application are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present application, and such improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A guiding wheel structure for a sliding door, characterized in that, it includes: A first guiding wheel mechanism (1), which is used to slide along the first guiding rail (61) on the inner side of the sliding door body (6); A second guiding wheel mechanism (2), which is used to slide along the second guiding rail (51) on the upper or lower side wall inside the cabinet body (5); A first support member (3), one end of the first support member (3) is connected to the first guiding wheel mechanism (1); A second support member (4), one end of the second support member (4) is hinged to the other end of the first support member (3), and the other end of the second support member (4) is hinged to the second guiding wheel mechanism (2); Wherein, the first support member (3) and / or the second support member (4) is provided with a limiting structure for restricting the rotation angle of the hinge, so that when the first guiding wheel mechanism (1) slides and / or when the second guiding wheel mechanism (2) slides, the maximum angle between the first support member (3) and the second support member (4) remains constant.

2. A guiding wheel structure for a sliding door according to claim 1, characterized in that, A flexible structure (32) is provided at the connection between one end of the first support member (3) and the first guiding wheel mechanism (1), and the flexible structure (32) includes a first extension edge (321) and a second extension edge (322) located on both sides of the connection. Among the first extension edge (321) and the second extension edge (322), one abuts against the first guiding wheel mechanism (1), and the other has a gap with the first guiding wheel mechanism (1), so that the first support member (3) has a space to rotate away from the first guiding wheel mechanism (1).

3. A guiding wheel structure for a sliding door according to claim 2, characterized in that, The limiting structure includes a second limiting structure (42) located at the other end of the first support member (3) or one end of the second support member (4), and the second limiting structure (42) includes a third extension edge (421) and a fourth extension edge (422) located on both sides of the hinge, and / or, the limiting structure includes a third limiting structure (43) located at the other end of the second support member (4), and the third limiting structure (43) includes a fifth extension edge (431) and a sixth extension edge (432) located on both sides of the hinge.

4. A guiding wheel structure for a sliding door according to claim 3, characterized in that, The third extension edge (421) and the fourth extension edge (422) control the maximum rotation angle between the second support member (4) and the first support member (3) to be 90°, and / or, the fifth extension edge (431) and the sixth extension edge (432) control the maximum rotation angle between the second support member (4) and the second guiding wheel mechanism (2) to be 90°.

5. A guiding wheel structure for a sliding door according to claim 4, characterized in that, The second support member (4) and the second guide wheel mechanism (2) are provided with an elastic abutting member (9). One end of the elastic abutting member (9) is rotatably connected to the second support member (4), and the other end is rotatably connected to the second guide wheel mechanism (2). The elastic abutting member (9) is used to provide a supporting force for one end of the second support member (4) to prevent rotation in the sliding direction of the second guide wheel mechanism (2).

6. A flat sliding door guide wheel structure according to claim 5, wherein, the elastic abutting member (9) includes: a kit housing (91). One end of the first elastic kit is concavely formed with a receiving cavity, and the other end is provided with a first bayonet (911). The first bayonet (911) is rotatably connected to the second guide wheel mechanism (2); a plug-in member (92). One end of the plug-in member (92) is inserted into the receiving cavity, and the other end is provided with a second bayonet (921). The second bayonet (921) is rotatably connected to the second support member (4); an elastic member (93). The elastic member (93) is located between the receiving cavity and the plug-in member (92) and is used to provide elastic force for both sides.

7. A flat sliding door guide wheel structure according to claim 6, wherein, an assembly clamping plate (21) is further provided between the second support member (4) and the second guide wheel mechanism (2). The assembly clamping plate (21) has an assembly cavity (211). The other end of the second support member (4) and the elastic abutting member (9) are located in the assembly cavity (211).

8. A flat sliding door guide wheel structure according to claim 1, wherein, both the first guide wheel mechanism (1) and the second guide wheel mechanism (2) include: a pulley bottom plate (11); at least two rollers (12). The rollers (12) are assembled on the pulley bottom plate (11), and the axle of the roller (12) is perpendicular to the pulley bottom plate (11). Two or more rollers (12) have two opposite guiding surfaces for rolling along the two side walls of the first guide rail (61) or the second guide rail (51).

9. A cabinet with a flat sliding door guide wheel structure, including a cabinet body (5), a flat sliding door body (6), a first guide rail (61), a second guide rail (51), a load-bearing guide rail (52), a load-bearing pulley group (53), and a flat sliding door guide wheel structure according to any one of claims 1-8, wherein, the load-bearing guide rail (52) is assembled at the bottom of the cabinet body (5), the first guide rail (61) is installed on the upper side wall inside the cabinet body (5), the second guide rail (51) is installed above the inner side wall of the flat sliding door body (6). The lower part of the flat sliding door body is connected to the load-bearing pulley group (53). The load-bearing pulley group (53) slides along the load-bearing guide rail (52) to drive the flat sliding door body (6) to move. The first support member (3) and the second support member (4) slide along the first guide rail (61) and / or the second guide rail (51) at a certain angle to provide sliding guidance for the upper part of the flat sliding door body (6).

10. A cabinet with a flat sliding door guide wheel structure according to claim 9, It is characterized in that an adjustable stopper (8) is arranged near one end inside the second guide rail (51), a contraction space (511) for accommodating the second support member (4) is reserved between the adjustable stopper (8) and the end, the adjustable stopper (8) is used for controlling the maximum sliding distance of the second guide wheel mechanism (2) in the second guide rail (51), so that the sliding distance when the flat sliding door body (6) opens or closes the door is equal to the sum of the sliding distance of the first guide wheel mechanism (1) in the first guide rail (61), the sliding distance of the second guide wheel mechanism (2) in the second guide rail (51), and the arc length distance of the rotation between the second support member (4) and the second guide wheel mechanism (2). When the flat sliding door body (6) is contracted by the load-bearing pulley group (53), the flat sliding door body (6) contracts towards the inside of the cabinet, so that the second support member (4) rotates into the contraction space (511) and aligns with the second guide rail (51).

Images