Linkage mechanism of multi-leaf sliding door without lower rail

Abstract

The utility model discloses a linkage mechanism of a multi-leaf sliding door without a lower rail, which comprises a door frame section bar, guide blocks, pulley blocks, an L-shaped connecting piece and a Z-shaped connecting piece, the door frame section bar is provided with guide grooves and a roller mounting groove, and the two groups of guide grooves are positioned on two sides of the roller mounting groove; each guide block comprises an upper adjusting plate, a bottom positioning plate, guide wheels and adjusting grooves, locking holes are formed in the upper adjusting plates, protrusions are arranged above the bottom positioning plates, the upper adjusting plates are adjusted in the protrusions, and the two sets of guide wheels correspond to the side ends of the upper adjusting plates and the side ends of the bottom positioning plates respectively and slide in the guide grooves of the adjacent door frame profiles. Graduated scales are arranged on the surfaces of the upper adjusting plate and the bottom positioning plate, the pulley blocks are mounted in the roller mounting grooves, and the door frame profiles are combined and connected through the L-shaped connecting pieces and the Z-shaped connecting pieces. The sliding door has the beneficial effects that the synchronism of a plurality of sliding doors in the sliding process can be effectively guaranteed, and the use convenience and stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sliding door, concretely relates to the improvement of the linkage mechanism of the multi-leaf sliding door without lower rail. BACKGROUND

[0002] The conventional sliding door mostly relies on the lower rail to guide the sliding and keep stable, the lower rail is easy to accumulate dust and deform, which influences the normal use of the sliding door and is more troublesome to clean. The sliding door without lower rail emerges as the times require, however, the existing sliding door without lower rail has the problem of poor synchronism between the multi-leaf doors, easy to shake in the process of sliding, and difficult to realize stable and convenient linkage operation, which not only influences the use experience, but also reduces the service life of the sliding door. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the defects of the prior art, the utility model provides a linkage mechanism of the multi-leaf sliding door without lower rail, which can effectively ensure the synchronism of the multi-leaf sliding door in the process of sliding, improve the convenience and stability of use, and solve the problem of easy to shake in the process of sliding and difficult to realize stable and convenient linkage operation.

[0005] (II) Technical scheme

[0006] In order to realize the above-mentioned advantages of effectively ensuring the synchronism of the multi-leaf sliding door in the process of sliding and improving the convenience and stability of use, the utility model adopts the following specific technical scheme:

[0007] A linkage mechanism of the multi-leaf sliding door without lower rail, which comprises a door frame profile, a guide block, a pulley set, an L-shaped connecting piece and a Z-shaped connecting piece, the door frame profile is provided with a guide groove and a roller mounting groove, two groups of guide grooves are located on both sides of the roller mounting groove, the guide block comprises an upper adjusting plate, a bottom positioning plate, a guide wheel and an adjusting groove, the upper adjusting plate is provided with a locking hole, the bottom positioning plate is provided with a protrusion above, the upper adjusting plate is adjusted in the protrusion, the adjusting groove is arranged on the surface of the bottom positioning plate, two groups of guide wheels are respectively arranged at the side ends of the upper adjusting plate and the bottom positioning plate and slide in the guide grooves of the adjacent door frame profiles, the surfaces of the upper adjusting plate and the bottom positioning plate are provided with a scale, the door frame profile is provided with a plurality of groups, two groups of door frame profiles are connected through the guide block, the pulley set is installed in the roller mounting groove, and a plurality of groups of door frame profiles are combined and connected through the L-shaped connecting piece and the Z-shaped connecting piece.

[0008] Further, the door frame profile is provided with at least three groups, the guide block is connected between the first group and the second group, and the L-shaped connecting piece and the Z-shaped connecting piece are connected between the second group and the third group.

[0009] Further, the length of the guide slot is shorter than the length of the roller mounting slot.

[0010] Further, a fastener is arranged in the locking hole, and the fastener is fastened with the adjusting slot on the ground through the locking hole.

[0011] Further, the pulley in the pulley block is a height-adjustable pulley.

[0012] Further, a first adjusting hole and a roller are arranged on the L-shaped connecting piece, the first adjusting hole is connected to the outer side of the door frame profile through a screw, the first adjusting hole is located on the longitudinal block surface of the L-shaped connecting piece, the roller is arranged on the lower side of the L-shaped connecting piece, and the roller is slidably connected to the guide slot of the third set of door frame profiles.

[0013] Further, the Z-shaped connecting piece is provided with a mounting hole and a second roller, the mounting hole is located at the top of the Z-shaped connecting piece and is fixed in the roller mounting slot of the third set of door frame profiles through a screw, and the second roller is located below the Z-shaped connecting piece and extends into the guide slot of the second set of door frame profiles.

[0014] Further, the mounting height of the L-shaped connecting piece is higher than that of the Z-shaped connecting piece, and a spacing is left below the Z-shaped connecting piece and the L-shaped connecting piece.

[0015] Further, limit blocks are arranged on the front and rear sides of the upper adjusting plate, and the limit blocks are clamped on the bottom positioning plate.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the linkage mechanism of the multi-leaf sliding door without a lower rail has the following beneficial effects:

[0018] By canceling the lower rail, the problems of dust accumulation and deformation of the lower rail are avoided, cleaning is facilitated, the appearance of the entire sliding door system is improved, and the synchronism of the multi-leaf sliding door during sliding is effectively ensured by the combination connection of the multiple door frame profiles through the L-shaped connecting piece and the Z-shaped connecting piece, the convenience and stability of use are improved, the shaking of the sliding door in the sliding and stationary states is greatly reduced, and the service life of the sliding door is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0020] Figure 1Is the structure schematic view of the utility model;

[0021] Figure 2 Is the structure schematic view of the utility model guide block 2;

[0022] Figure 3 Corresponding Figure 2 The bottom view of the utility model is shown in the figure.

[0023] Figure 4 Is the structure schematic view two of the utility model.

[0024] Figure 5 Is the structure schematic view of the utility model L-shaped connecting piece 4.

[0025] Figure 6 Is the structure schematic view of the utility model Z-shaped connecting piece 5.

[0026] Figure 7 Is the structure schematic view of the utility model embodiment 2.

[0027] Figure 8 Is the structure schematic view two of the utility model embodiment 2.

[0028] In the figure: door frame section bar 1, guide block 2, pulley set 3, L-shaped connecting piece 4, first adjusting hole 41, roller 42, Z-shaped connecting piece 5, scale 6, mounting hole 51, second roller 52, guide groove 11, roller mounting groove 12, upper adjusting plate 21, locking hole 211, limit block 212, bottom positioning plate 22, protrusion 221, guide wheel 23, adjusting groove 24. Specific implementation

[0029] To further illustrate each embodiment, the utility model provides with the drawing, these drawings are the part of the utility model disclosure, it is mainly used to illustrate the embodiment, and can cooperate the relevant description of the specification to explain the operating principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the figure are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0030] According to the embodiment of the utility model, a linkage mechanism of a multi-leaf sliding door without lower rail is provided.

[0031] Embodiment 1

[0032] As Figures 1-6As shown, according to the utility model embodiment of a kind of no lower rail multi-leaf sliding door linkage mechanism, it includes door frame section bar 1, guide block 2, pulley set 3, L-shaped connecting piece 4 and Z-shaped connecting piece 5, the door frame section bar 1 is provided with guide groove 11 and gyro wheel installation groove 12, two groups of guide groove 11 are located the two sides of gyro wheel installation groove 12, the guide block 2 includes upper adjusting plate 21, bottom positioning plate 22, guide wheel 23 and adjusting groove 24, the upper adjusting plate 21 is provided with locking hole 211, the top of bottom positioning plate 22 is equipped with protrusion 221, upper adjusting plate 21 is adjusted in protrusion 221, adjusting groove 24 is arranged on the surface of bottom positioning plate 22, two groups of guide wheels 23 are correspondingly in the side end of upper adjusting plate 21 and bottom positioning plate 22, and slide in the guide groove 11 of adjacent door frame section bar 1, the surface of upper adjusting plate 21 and bottom positioning plate 22 is equipped with scale 6, the door frame section bar 1 is provided with array, two groups of door frame section bar 1 are connected by guide block 2, pulley set 3 is installed in gyro wheel installation groove 12, and multiple door frame section bars 1 are connected by L-shaped connecting piece 4 and Z-shaped connecting piece 5 combination connection.Upper adjusting plate 21 is clamped in the protrusion 221 of bottom positioning plate 22, and slides in adjusting groove 24 by locking hole 211, according to the distance of door frame section bar 1, adjust upper adjusting plate 21 and bottom positioning plate 22, according to scale 6, so that the specification of profile is matched quickly and accurately.

[0033] As Figure 1 Shown, the door frame section bar 1 is provided with at least three groups, guide block 2 is connected between first group and second group, and L-shaped connecting piece 4 and Z-shaped connecting piece 5 are connected between second group and third group.In this way, it can be connected in turn.Even if the two adjacent doors are pulled to the far end, the problem of pulley deviation of sliding door is reduced.

[0034] As Figure 1 Shown, the length of guide groove 11 is shorter than the length of gyro wheel installation groove 12.The problem that guide block 2, L-shaped connecting piece 4 and Z-shaped connecting piece 5 knock when sliding is solved.

[0035] As Figure 3 Shown, fastener is arranged in locking hole 211, and the fastener is fastened to the ground through locking hole 211 and adjusting groove 24.Through fastener and ground fixation, upper adjusting plate 21 and bottom positioning plate 22 are fixed, cooperate the protrusion 221 of bottom positioning plate 22, so that upper adjusting plate 21 will not displace.

[0036] As Figure 1 And 4 Shown, the pulley in pulley set 3 is height-adjustable pulley.The height of pulley of pulley set 3 can be adjusted, so that Z-shaped connecting piece 5 can be connected in gyro wheel installation groove 12, so that the height of sliding door is consistent.

[0037] As Figure 5As shown, the L-shaped connector 4 is provided with a first adjusting hole 41 and a roller 42, the first adjusting hole 41 is connected to the outer side of the door frame profile 1 by a screw, the first adjusting hole 41 is located on the longitudinal block surface of the L-shaped connector 4, the roller 42 is arranged on the lower side of the L-shaped connector 4, and the roller 42 is slidably connected to the guide groove 11 of the third group of door frame profiles 1. Make the door frame profiles 1 move smoothly. Thus, the moving of multiple groups of sliding doors is realized.

[0038] As shown in Figure 6 , the Z-shaped connector 5 is provided with a mounting hole 51 and a second roller 52, the mounting hole 51 is located at the top of the Z-shaped connector 5 and is fixed in the roller mounting groove 12 of the third group of door frame profiles 1 by a screw, the second roller 52 is located below the Z-shaped connector 5, and the second roller 52 extends into the guide groove 11 of the second group of door frame profiles 1. Solve the problem of shaking, make the door frame profiles 1 move smoothly. Through the second roller 52 extending into the guide groove 11 of the second group of door frame profiles 1, the moving of multiple groups of sliding doors is realized.

[0039] As shown in Figure 1 , the mounting height of the L-shaped connector 4 is higher than that of the Z-shaped connector 5, and the Z-shaped connector 5 is spaced below the L-shaped connector 4. Solve the problem of knocking between L-shaped connector 4 and Z-shaped connector 5 when sliding.

[0040] Example 2

[0041] As shown in Figure 7 and 8 , the difference between this embodiment and example 1 is that the front and rear sides of the upper adjusting plate 21 are provided with limiting blocks 212, and the limiting blocks 212 are clamped on the bottom positioning plate 22. The cooperation of the limiting blocks 212 and the bottom positioning plate 22 makes the upper adjusting plate 21 and the bottom positioning plate 22 more stable and less likely to shift.

[0042] Working principle: according to the installation requirements, the door frame profiles 1 have a plurality of groups, two groups of door frame profiles 1 are connected through the guide block 2, the pulley block 3 is installed in the roller mounting groove 12, a plurality of groups of door frame profiles 1 are connected through the combination of the L-shaped connector 4 and the Z-shaped connector 5, the upper adjusting plate 21 is clamped in the protrusion 221 of the bottom positioning plate 22, (the front and rear sides of the upper adjusting plate 21 are provided with limiting blocks 212, and the limiting blocks 212 are clamped on the bottom positioning plate 22. The cooperation of the limiting blocks 212 and the bottom positioning plate 22 makes the upper adjusting plate 21 and the bottom positioning plate 22 more stable) through the locking hole 211 sliding in the adjusting groove 24, according to the distance of the door frame profiles 1, adjust the distance between the upper adjusting plate 21 and the bottom positioning plate 22, according to the scale 6, in order to quickly and accurately match the specifications of the profiles, the guide block 2 is connected between the first group and the second group, the L-shaped connector 4 and the Z-shaped connector 5 are connected between the second group and the third group. In this way, it can be connected in turn.

[0043] In the utility model, unless another explicit provision and limitation, the terms "mount", "set", "connect", "fix", "screw" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can indirectly connect through the intermediate medium, can be two element internal communication or two element's mutual action relation, unless another explicit limitation, for the ordinary skill in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0044] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A linkage mechanism for multiple sliding doors without a lower rail, comprising a door frame profile (1) and a pulley assembly (3), characterized in that: The invention also includes a guide block (2), an L-shaped connecting piece (4) and a Z-shaped connecting piece (5); the door frame profile (1) is provided with a guide groove (11) and a roller installation groove (12); the two groups of guide grooves (11) are located on both sides of the roller installation groove (12); the guide block (2) includes an upper adjustment plate (21), a bottom positioning plate (22), a guide wheel (23) and an adjustment groove (24); the upper adjustment plate (21) is provided with a locking hole (211); a protrusion (221) is provided above the bottom positioning plate (22); the upper adjustment plate (21) is adjusted in the protrusion (221); the adjustment groove (24) is provided in the upper adjustment plate (21); 4) is arranged on the surface of the bottom positioning plate (22), two groups of guide wheels (23) are respectively corresponding to the side ends of the upper adjustment plate (21) and the bottom positioning plate (22), and slide in the guide groove (11) of the adjacent door frame profile (1), the surfaces of the upper adjustment plate (21) and the bottom positioning plate (22) are provided with a scale (6), the door frame profile (1) is provided with an array, the two groups of door frame profiles (1) are connected by a guide block (2), the pulley group (3) is installed in the roller installation groove (12), and multiple groups of door frame profiles (1) are connected by an L-shaped connector (4) and a Z-shaped connector (5).

2. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The door frame profile (1) is provided with at least three groups, the guide block (2) is connected between the first group and the second group, and the L-shaped connecting piece (4) and the Z-shaped connecting piece (5) are connected between the second group and the third group.

3. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The length of the guide groove (11) is shorter than the length of the roller mounting groove (12).

4. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: A fastener is provided in the locking hole (211), and the fastener passes through the locking hole (211) and the adjustment slot (24) and is fastened to the ground.

5. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The inner pulley of the pulley group (3) is a height-adjustable pulley.

6. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The L-shaped connecting member (4) is provided with a first adjustment hole (41) and a roller (42), the first adjustment hole (41) is connected to the outer side of the door frame profile (1) by means of screws, the first adjustment hole (41) is located on the longitudinal block surface of the L-shaped connecting member (4), the roller (42) is provided on the lower side of the L-shaped connecting member (4), and the roller (42) is slidably connected to the guide groove (11) of the third group of door frame profiles (1) away from the guide block (2).

7. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The Z-shaped connecting member (5) is provided with a mounting hole (51) and a second roller (52); the mounting hole (51) is located at the top of the Z-shaped connecting member (5) and is fixed in the roller mounting groove (12) of the third group of door frame profiles (1) by screws; the second roller (52) is located below the Z-shaped connecting member (5) and extends into the guide groove (11) of the second group of door frame profiles (1).

8. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The installation height of the L-shaped connecting piece (4) is higher than that of the Z-shaped connecting piece (5), and a distance is left below the Z-shaped connecting piece (5) and the L-shaped connecting piece (4).

9. The linkage mechanism for multiple sliding doors without a lower track according to claim 1, characterized in that: The front and rear sides of the upper adjustment plate (21) may also be provided with limit blocks (212), and the limit blocks (212) are clamped on the bottom positioning plate (22).

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