TWM623870U - Sliding door frame, sliding door group and sliding door structure - Google Patents

Abstract

A sliding door frame, a sliding door group and a sliding door structure, the sliding door frame is suitable for setting a plate body and can be slidably installed on a first surface, the sliding door frame includes an outer frame unit and an inner frame unit . The outer frame unit includes two first frame bars and two second frame bars. Each of the first frame bars has two extensions. Each of the second frame bars has two joint portions, and one of the joint portions of each of the second frame bars is inserted between the extension portions of one of the first frame bars. The length of each extension portion in the first direction is defined as L1, the minimum vertical distance between the extension portions of each first frame strip is L2, and the ratio of L2/L1 is between 0.7 and 1.3. The inner frame unit is disposed on the outer frame unit and moves along with the outer frame unit and defines an installation opening suitable for the plate body to be installed around.

Description

Sliding door frame, sliding door group and sliding door structure

The new model relates to a door, in particular to a sliding door frame, a sliding door group and a sliding door structure.

Existing sliding doors are often used to separate areas such as kitchens, living rooms, bedrooms and bathrooms. Compared with the problem that the side doors cannot be used due to the rotation radius of the side doors, the sliding doors can save space and give the space a more open vision. effect, and become a good choice.

Referring to FIG. 1, the sliding door is composed of a mouth-shaped outer frame 1, an inner frame (not shown) assembled to the outer frame 1, and a glass panel (not shown) embedded in the inner frame. Due to the transparent and light-transmitting properties of the glass panel, it can increase the lighting and have the effect of enlarging the space.

The outer frame 1 is formed by splicing two vertical rods 11 and two horizontal rods 12. When splicing, only the side of the horizontal rod 12 is pressed against the side of the vertical rod 11, and then a self-tapping screw is passed through. 13 penetrates the vertical rod 11 and is locked to the cross rod 12 to achieve a fixing effect, but because the joint surface of the cross rod 12 and the vertical rod 11 is actively small, the overall structure is unstable.

Therefore, the first objective of the present invention is to provide a sliding door frame which can improve the structural strength.

Therefore, the novel sliding door frame is suitable for a plate body to be installed on a first surface in a slidable manner, and the sliding door frame includes an outer frame unit and an inner frame unit. The outer frame unit is slidable relative to the first surface along a first direction, the outer frame unit includes two first frame bars spaced in parallel in the first direction, and two parallel in a second direction The second frame strips are spaced apart, and the second direction is substantially perpendicular to the first direction. Each of the second frame bars is connected to the first frame bars, and an insertion opening is defined by the first frame bars and the second frame bars. Each of the first frame strips has a base portion and two extending portions arranged at intervals, and the extending portions are respectively disposed on two opposite sides of the base portion in a third direction and extend in the same direction along the first direction. Each of the second frame strips has two joints disposed oppositely in the first direction, and one of the joints of each of the second frame strips is plugged into the extensions of one of the first frame strips between and adjacent to the corresponding base.

The length of each extension in the first direction is defined as L1, the minimum vertical distance between the extensions of each first frame strip is L2, and the ratio of L2/L1 is between 0.7 and 1.3 .

The inner frame unit is disposed on the outer frame unit and moves with the outer frame unit, the inner frame unit includes two first rods spaced in parallel in the first direction and two first rods spaced in parallel in the second direction Two rod bodies, the first rod bodies and the second rod bodies define an installation opening suitable for the plate body to be installed, and the first rod bodies are respectively accommodated in the first frame bars , the second rod bodies are respectively accommodated in the second frame bars, and two opposite ends of each of the first rod bodies are respectively abutted against the second rod bodies.

The second objective of the present invention is to provide a sliding door frame which can improve the structural strength.

Therefore, the sliding door frame of the present invention is suitable for two plates to be installed on a first surface in a slidable manner, and the sliding door frame includes an outer frame unit and two inner frame units.

The outer frame unit can slide relative to the first surface along a first direction, and the outer frame unit includes two first frame bars spaced in parallel in the first direction, and three parallel spaced apart in a second direction the second frame strip, the second direction is substantially perpendicular to the first direction. Each of the second frame bars is connected to the first frame bars, and two embedded openings spaced in the second direction are defined by the first frame bars and the second frame bars. Each of the first frame strips has a base portion and two extending portions arranged at intervals, and the extending portions are respectively disposed on two opposite sides of the base portion in a third direction and extend in the same direction along the first direction. Each of the second frame strips has two joints disposed oppositely in the first direction, and one of the joints of each of the second frame strips is plugged into the extensions of one of the first frame strips between and adjacent to the corresponding base.

The length of each extension in the first direction is defined as L1, the minimum vertical distance between the extensions of each first frame strip is L2, and the ratio of L2/L1 is between 0.7 and 1.3 .

The inner frame units are respectively disposed in the insertion openings of the outer frame unit and move with the outer frame unit, each of the inner frame units includes two first rods and two parallel and spaced apart first rods in the first direction The second rod bodies spaced in parallel in the second direction are surrounded by the first rod bodies and the second rod bodies to define an installation opening suitable for arranging one of the plate bodies. The second rods of each of the inner frame units are respectively accommodated in two adjacent second frame bars, and two opposite ends of each of the first rods of each of the inner frame units are respectively abutted against. the respective second rod bodies.

The third object of the present invention is to provide a sliding door group which can improve the structural strength.

Therefore, the novel sliding door assembly is suitable for being slidably installed on a first surface, and the sliding door assembly includes the aforementioned sliding door frame and a plate body.

The plate body is fixed on the inner frame unit of the sliding door frame and closes the installation opening.

The fourth object of the present invention is to provide a sliding door structure that can improve the structural strength.

Therefore, the novel sliding door structure is suitable for being slidably mounted on a first surface, and the sliding door structure includes a fixing unit and the aforementioned sliding door group.

The fixing unit includes a track extending along the first direction and disposed on the first surface. The sliding door group is slidably arranged on the track.

The effect of the present invention is that the joint portion of each second frame is inserted between the extension portions of the corresponding first frame, and the ratio of L2/L1 is between 0.7 and 1.3. The design increases the joint area of the second frame strips and the first frame strips, so as to improve the clamping force during jointing, thus improving the overall structural integrity.

Referring to FIG. 2 and FIG. 3 , the first embodiment of the sliding door structure of the present invention is suitable for being slidably mounted on a first surface S1 and a second surface S2 opposite to the first surface S1. The embodiment is a suspended sliding door structure, and the first surface S1 is a ceiling, and the second surface S2 is a floor. The sliding door structure includes a fixing unit 2 and two sliding door groups 300 that are opened and closed side by side.

Referring to FIGS. 3 and 4 , the fixing unit 2 includes a rail 21 extending along a first direction X and disposed on the first surface S1 , and two rails 21 installed on the second surface S2 in the first direction X at intervals the limiter 22. The rail 21 of the first embodiment is formed by bending a metal plate into an inverted U shape. Each of the limiters 22 corresponds to one of the sliding door groups 300 and is fixed on the second surface S2 , and each of the limiters 22 has a head 221 facing the respective sliding door group 300 .

Each of the sliding door groups 300 cooperates with one of the limiters 22 and is slidably disposed on the track 21 . Each of the sliding door groups 300 includes a sliding door frame 4 and a plate body 5 fixed on the sliding door frame 4. In the first embodiment, the plate body 5 is a transparent glass sheet. It can be understood that, In other variations, the plate body 5 can also be made of translucent or opaque materials, such as but not limited to colored glass, frosted glass, wood, plastic plate, composite plate, ceramic plate or metal plate, and the plate body 5 In addition to being a solid structure, it can also be a hollow structure or a fence structure, so the material and style of the plate body 5 are not limited by the present invention.

Referring to FIG. 3 to FIG. 5 , each of the sliding door frames 4 has an outer frame unit 401 generally in the shape of a mouth, and an inner frame unit 402 disposed on the outer frame unit 401 .

The outer frame unit 401 can slide relative to the first surface S1 and the second surface S2. Specifically, the outer frame unit 401 is slidably disposed on the rail 21 and can be relative to the first direction X along the first direction X. The corresponding limiter 22 moves.

The outer frame unit 401 includes two first frame bars 41 , two second frame bars 42 , two decorative covers 43 , several brushes 44 , and two sliding members 45 . The first frame bars 41 are extruded aluminum and extend along a second direction Y and are spaced parallel to the first direction X. The second direction Y is substantially perpendicular to the first direction X. In this first implementation In an example, the first direction X is a horizontal direction, and the second direction Y is a vertical direction. The second frame bars 42 extend along the first direction X and are spaced in parallel in the second direction Y, each second frame bar 42 is connected to one end of the first frame bars 41, The frame strips 41 and the second frame strips 42 define an insertion opening 403 around them. The decorative covers 43 extend in the same direction as the first frame bars 41 and are respectively mounted on the outer sides of the first frame bars 41 . The brushes 44 and the first frame strips 41 extend in the same direction and are installed on the first frame strips 41 and the decorative covers 43 respectively. It should be understood that the number and arrangement position of the brushes 44 can be adjusted or changed according to the actual situation, or can also be omitted. The sliding members 45 are located between the second frame strip 42 adjacent to the first surface S1 and the first surface S1 , the sliding members 45 are spaced apart in the first direction X and disposed on the second frame strip 42. The sliding door group 300 is moved relative to the first surface S1 and the second surface S2 by the sliding members 45 sliding along the rail 21 . In this first embodiment, each of the sliders 45 is a double row double roller hanger seat, but other types of rollers or hangers can also be used.

It should also be noted that, in the first embodiment, the head 221 of the restrictor 22 is accommodated in the second frame 42 adjacent to the second surface S2 and maintains a gap with the second frame 42, During the sliding of the outer frame unit 401 along the rail 21 , the bottom end of the sliding door group 300 can be restrained from being swayed and displaced, so that the sliding door group 300 can move stably along the rail 21 .

Referring to FIGS. 3 and 6 , each of the first frame bars 41 has a base portion 411 and two extending portions 412 arranged at intervals, and the base portion 411 of each of the first frame bars 41 has a base portion 411 extending along a third direction Z. The main wall 413, and two surrounding walls 414 spaced apart and extending from the main wall 413 in a direction opposite to the respective extension portions 412, the third direction is substantially perpendicular to the first direction X and the third direction Two directions Y. The extension portions 412 are respectively disposed on opposite sides of the base portion 411 in the third direction Z and extend in the same direction along the first direction X, and the length of each extension portion 412 in the first direction X is greater than that of each of the extension portions 412 The length of the surrounding wall 414 in the first direction X.

The length of each extension 412 in the first direction X is defined as L1, the minimum vertical distance between the extensions 412 is L2, and the ratio of L2/L1 is between 0.7 and 1.3. In this first In an embodiment, the ratio is 0.9. Each of the second frame bars 42 has two connecting portions 421 oppositely disposed in the first direction X, and a connecting portion 422 integrally connected to the connecting portions 421 . The second frame strip 42 has a uniform thickness in the third direction Z. One of the coupling portions 421 is inserted between the extending portions 412 of the corresponding first frame bars 41 and is adjacent to the corresponding base portion 411 , so that the second frame bars 42 are respectively positioned on the corresponding base portions 411 . Wait for the first frame bar 41. In the first embodiment, each of the joint portions 421 abuts against the corresponding base portion 411, but can also maintain a gap with the corresponding base portion 411, as long as each of the joint portions 421 is plugged into the extension portions 412 can be clamped by the extending portions 412 to achieve positioning.

Referring to FIG. 3 and FIG. 7 , the inner frame unit 402 is inserted into the first frame bars 41 and the second frame bars 42 of the outer frame unit 401 and moves with the outer frame unit 401 . The inner frame unit 402 includes two first rod bodies 46 , two second rod bodies 47 , and several locking pieces 48 . The first rod bodies 46 are extruded aluminum and extend along the second direction Y and are spaced parallel to the first direction X, and the first rod bodies 46 are respectively accommodated in the first frame bars 41 . The second rod bodies 47 are extruded aluminum and extend along the first direction X and are spaced in parallel in the second direction Y, and the second rod bodies 47 are respectively accommodated in the second frame bars 42 . The locking members 48 are used for screwing and fixing the first rod bodies 46 and the second rod bodies 47 . The first rod body 46 and the second rod body 47 define an installation opening 404 suitable for fixing the plate body 5 , and the installation opening 404 is closed by the plate body 5 . The size of the insertion opening 403 and the installation opening 404 in the first embodiment are substantially equal, that is, the inner side of the inner frame unit 402 and the inner side of the outer frame unit 401 are just aligned, so the appearance is more beautiful, but other In a variant, the size of the insertion opening 403 and the mounting opening 404 can also be unequal.

Referring to FIG. 4 , FIG. 7 and FIG. 8 , two opposite ends of each of the first rod bodies 46 abut against the second rod bodies 47 , respectively. Each of the first rods 46 has a fixing portion 461 extending from the top side to the bottom side along the second direction Y. In the first embodiment, the fixing portion 461 is a groove. Each of the second rod bodies 47 has a base wall 471 extending along the first direction X, and two spaced apart from the base wall 471 along the second direction Y toward the direction away from the first rod bodies 46 The extending hook wall 472 defines a recess 473 surrounded by the base wall 471 and the hook walls 472 . Each of the locking members 48 is fixed through one of the second rod bodies 47 to one of the first rod bodies 46 , and each of the locking members 48 has a recess 473 that sinks from the respective second rod body 47 and The head portion 481 abutting against the respective base wall 471, and a rod portion 482 extending from the head portion 481 to the corresponding fixing portion 461 of the first rod body 46. In the first embodiment, each The locks 48 are bolts, and the first rods 46 and the second rods 47 are fixed to each other by the locking of the locks 48 to form the inner frame unit 402 .

Referring to FIG. 7 , when assembling the sliding door assembly 300 , first assemble the first rod bodies 46 , the second rod bodies 47 and the board body 5 , and use adhesive to fix the board body 5 on the board body 5 . The inner frame unit 402, then, the second frame bars 42 are respectively installed into the second rod bodies 47, and then the first frame bars 41 are respectively installed into the inner frame unit 402 and the second frame bars 42 and locked by several screws 9. Finally, the decorative covers 43 are respectively inserted into the first frame bars 41 to complete the assembly. The screws 9 can be shielded by the decorative covers 43 to avoid being exposed, so the appearance is more beautiful.

Referring to FIG. 8 , it should be noted that, in the process of assembling the sliding door set 300 , since the locking pieces 48 sink into the recesses 473 of the second rod bodies 47 , the second frame bars are When the 42 is installed on the second rod bodies 47 , the locking members 48 will not interfere with the sliding of the second frame bars 42 , which has the advantage of being easy to assemble.

When in use, any one of the sliding door groups 300 can be pushed or pulled to move left and right, and the bottom end of each of the sliding door groups 300 can be restrained by each of the limiters 22 from being swayed and displaced, so that each of the sliding door groups 300 can move along the rail 21 stably.

The sliding door frame 4 of the present invention is inserted between the extending portions 412 of the corresponding first frame bar 41 by the joint portion 421 of each second frame bar 42, and uses the ratio of L2/L1 to be between The design between 0.7 and 1.3 increases the joint area of the second frame bars 42 and the first frame bars 41 to increase the clamping force during the joining process, thus improving the overall structural rigidity.

Referring to FIG. 9 and FIG. 10, it is a second embodiment of the novel sliding door structure. The second embodiment is similar to the first embodiment, and the main differences are:

The second embodiment is a floor-standing sliding door structure, and the first surface S1 is a floor, and the second surface S2 is a ceiling. The sliding door structure includes the fixing unit 2 ′ and the sliding door group 300 .

The fixing unit 2' includes the rail 21' and the limiter 22' mounted on the second surface S2. The track 21' is a flat track and is installed on the floor. The limiter 22 ′ is an inverted U-shaped guide rail extending along the first direction X and mounted on the ceiling, and the limiter 22 ′ has a receiving groove 222 extending along the first direction X.

Each of the sliders 45' of the outer frame unit 401 is an adjustable T-wheel and is used to roll relative to the track 21'. The outer frame unit 401 further includes two spaced-apart pulley bases 49 . The pulley bases 49 are slidably accommodated in the accommodating groove 222 of the limiter 22 ′ and move along the first direction X. As shown in FIG.

Referring to FIGS. 10 and 11 , each of the pulley bases 49 is a parallel wheel and is disposed on the second frame bar 42 adjacent to the second surface S2 , and also has the function of enabling the sliding door set 300 to stably along the track 21 'The role of movement.

Referring to FIG. 12 and FIG. 13, it is a third embodiment of the novel sliding door structure. The third embodiment is similar to the second embodiment, and the main differences are:

The sliding door set 300 includes the sliding door frame 4 ′ and the two boards 5 . The sliding door frame 4 ′ includes the outer frame unit 401 ′ and the two inner frame units 402 .

The outer frame unit 401 ′ includes two of the first frame bars 41 and three of the second frame bars 42 . The embedded openings 403 are spaced apart in the two directions Y.

The inner frame units 402 are respectively disposed in the insertion openings 403 of the outer frame unit 401 ′, and the second rods 47 of each inner frame unit 402 are respectively accommodated in two adjacent second frame bars 42 , two opposite ends of each of the first rod bodies 46 of each of the inner frame units 402 are respectively abutted against the respective second rod bodies 47 . The first rods 46 and the second rods 47 of each of the inner frame units 402 define a mounting opening 404 suitable for arranging one of the plates 5 .

The thickness of the upper plate body 5 is smaller than the thickness of the lower plate body 5 . With the design of the two installation openings 404 , two kinds of the plate body 5 with different thicknesses, materials or light transmittances can be installed according to actual needs. , so the third embodiment has various choices.

It should be noted that the new sliding door structure can be used not only in kitchens, living rooms, bedrooms and bathrooms, but also in display cabinets, cabinets, wardrobe doors or bathroom sliding doors.

However, the above are only examples of the present invention, which should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application for this new model and the contents of the patent specification are still within the scope of the present invention. within the scope of this new patent.

2,2': Fixed unit 21,21': track 22,22': Limiter 221: Head 222: Container 300: Sliding door group 4,4': Sliding door frame 401,401': Outer frame unit 402: Inner frame unit 403: Embedded opening 404: Mounting opening 41: First frame strip 411: Base 412: Extensions 413: Main Wall 414: Wall 42: Second frame 421: Joint 422: Connector 43: Decorative cover 44: Brush 45,45': Slider 46: The first rod body 461: Fixed part 47: Second rod body 471: Base Wall 472: Hook Wall 473: Recess 48: Lock firmware 481: Head 482: Rod 49: pulley seat 5: Board body L1: length L2: vertical distance X: first direction Y: the second direction Z: third direction S1: first surface S2: Second surface 9: Screws

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: Fig. 1 is an incomplete schematic diagram of an outer frame of a kind of existing sliding door; Fig. 2 is a front view of the first embodiment of the sliding door structure of the present invention; 3 is a front view of a sliding door group of the first embodiment; Fig. 4 is an incomplete cross-sectional view taken along the line IV-IV in Fig. 3; Fig. 5 is an incomplete cross-sectional view taken along the line V-V in Fig. 3; Fig. 6 is an incomplete cross-sectional view taken along the line VI-VI in Fig. 3; Fig. 7 is a partial exploded front view of the sliding door assembly, illustrating the assembling method of inserting two first frame strips and two decorative covers into an inner frame unit and two second frame strips, respectively; Figure 8 is a side view of the inner frame unit and the second frame bars in Figure 7 viewed from the side; Fig. 9 is an incomplete front view of the second embodiment of the sliding door structure of the present invention; Figure 10 is an incomplete cross-sectional view taken along line X-X in Figure 9; Figure 11 is an incomplete top view illustrating a pulley seat of the second embodiment mounted on one of the second frame bars; Figure 12 is a front view of the third embodiment of the sliding door structure of the present invention; and Fig. 13 is an incomplete sectional view illustrating the detailed structure of the third embodiment.

300: Sliding door group

401: Outer frame unit

41: First frame strip

411: Base

412: Extensions

413: Main Wall

414: Wall

42: Second frame

421: Joint

422: Connector

43: Decorative cover

44: Brush

L1: length

L2: vertical distance

X: first direction

Z: third direction

Claims (14)

A sliding door frame is suitable for a plate body to be installed on a first surface in a slidable manner, the sliding door frame comprises: an outer frame unit, which can slide relative to the first surface along a first direction, The outer frame unit includes two first frame bars spaced in parallel in the first direction, and two second frame bars spaced in parallel in a second direction, the second direction being substantially perpendicular to the first direction , each of the second frame bars is connected to the first frame bars, an insertion opening is defined by the first frame bars and the second frame bars, and each of the first frame bars has a base and two extension parts arranged at intervals, the extension parts are respectively disposed on two opposite sides of the base part in a third direction and extend in the same direction along the first direction, each of the second frame strips has opposite sides in the first direction Two joints provided in the direction, one of the joints of each of the second frame is inserted between the extensions of one of the first frame and adjacent to the corresponding base, defining each of the The length of the extension in the first direction is L1, the minimum vertical distance between the extensions of each of the first frame strips is L2, and the ratio of L2/L1 is between 0.7 and 1.3; and an inner The frame unit is arranged on the outer frame unit and moves with the outer frame unit, the inner frame unit includes two first rods spaced in parallel in the first direction and two second rods spaced in parallel in the second direction A rod body, which is surrounded by the first rod bodies and the second rod bodies to define an installation opening suitable for the plate body to be installed, and the first rod bodies are respectively accommodated in the first frame bars, The second rod bodies are respectively accommodated in the second frame bars, and two opposite ends of each of the first rod bodies are respectively abutted against the second rod bodies. The sliding door frame of claim 1, wherein each of the second rod bodies has a recessed portion extending along the first direction, and each of the first rod bodies has a fixing portion extending along the second direction, The inner frame unit further includes a plurality of locking pieces for fixing the first rod bodies and the second rod bodies respectively, and each of the locking pieces passes through one of the second rod bodies and sinks from the concave portion. extending to one of the fixing parts of the first rod body. The sliding door frame as claimed in claim 2, wherein each of the second rods has a base wall extending along the first direction and two spaced apart from the base wall along the second direction to move away from the The hook wall extending in the direction of the first rod body defines the recessed portion by the base wall and the hook walls, each of the locking pieces has a head for abutting against the respective base wall, and a The head extends to the corresponding rod portion of the fixing portion of the first rod body. The sliding door frame of claim 1, wherein the outer frame unit further comprises two decorative covers, the decorative covers extend along the second direction and are respectively installed on the first frame bars. The sliding door frame of claim 4, wherein the outer frame unit further comprises at least one brush extending along the second direction, and the brush is disposed on one of the decorative covers or one of the first frame strips. The sliding door frame of claim 4, wherein the base of each of the first frame strips has a main wall, and two spaced apart and extending from the main wall in a direction opposite to the respective extension parts The length of each of the extending portions in the first direction is greater than the length of each of the surrounding walls in the first direction, and each of the decorative covers is inserted between the surrounding walls of the respective first frame strips . The sliding door frame according to claim 1, wherein the outer frame unit further comprises two A sliding piece is arranged on one of the second frame strips at intervals, and the sliding pieces are located between the second frame strip and the first surface. The sliding door frame of claim 1, wherein the size of the insertion opening and the installation opening are substantially equal. A sliding door frame is suitable for two plates and can be slidably installed on a first surface. The sliding door frame includes: an outer frame unit, which can slide relative to the first surface along a first direction, The outer frame unit includes two first frame bars spaced in parallel in the first direction, and three second frame bars spaced in parallel in a second direction, the second direction being substantially perpendicular to the first direction, Each of the second frame bars is connected to the first frame bars, and two embedded openings spaced apart in the second direction are defined by the first frame bars and the second frame bars. The first frame strip has a base and two extension parts arranged at intervals. The extension parts are respectively arranged on two opposite sides of the base in a third direction and extend in the same direction along the first direction. Each of the second frame The strip has two joints disposed oppositely in the first direction, and one of the joints of each of the second frame strips is inserted between and adjacent to the extensions of one of the first frame strips. For the corresponding base, the length of each extension in the first direction is defined as L1, the minimum vertical distance between the extensions of each of the first frame bars is L2, and the ratio of L2/L1 is between between 0.7 and 1.3; and two inner frame units, respectively disposed in the insertion openings of the outer frame unit and moving with the outer frame unit, each of the inner frame units including two parallel intervals in the first direction The first rod body and two second rod bodies spaced in parallel in the second direction are surrounded and bounded by the first rod bodies and the second rod bodies An installation opening suitable for one of the plate bodies is provided, the second rods of each inner frame unit are respectively accommodated in the adjacent two second frame bars, and the Two opposite ends of each of the first rods are respectively abutted against the respective second rods. A sliding door group, suitable for being slidably installed on a first surface, the sliding door group comprising: a sliding door frame as described in claim 1; and a plate body fixed to the inner frame of the sliding door frame unit and close the mounting opening. A sliding door structure, suitable for being slidably mounted on a first surface, the sliding door structure comprising: a fixing unit including a track extending along a first direction and disposed on the first surface; and at least a The sliding door group according to claim 10, the sliding door group is slidably arranged on the track. The sliding door structure according to claim 11 is also suitable for being installed on a second surface opposite to the first surface, wherein the outer frame unit further comprises two sliding pieces slidably arranged on the rail , the fixing unit also includes at least one limiter suitable for being installed on the second surface, and the limiter is used to make the sliding door group move stably. The sliding door structure of claim 12, wherein the first surface is higher than the second surface in the second direction, and the limiter is provided for one of the second frame bars of the sliding door frame to be slidably pass through. The sliding door structure of claim 12, wherein the first surface is in the The second direction is lower than the second surface, the limiter has a groove extending along the first direction, and the outer frame unit of the sliding door frame further includes two pulley seats arranged on one of the second frame bars at intervals , the pulley seats are slidably accommodated in the accommodating groove and move along the first direction.

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