Lower-rail-free sliding door linkage device with telescopic limiting wheels

Abstract

The utility model discloses a lower rail-free sliding door linkage device of a telescopic limiting wheel, which comprises at least three groups of bottom section bars, a guide block, a pulley block and the limiting wheel, the bottom section bars are provided with guide grooves and roller mounting grooves, the guide grooves are positioned on the sides of the roller mounting grooves, breakable ribs are arranged in the roller mounting grooves, and the roller mounting grooves are provided with the pulley block and the limiting wheel. The pulley block is of a single-wheel structure, the pulley block is mounted in the roller mounting groove and located on the inner side of the breakable rib, the guide block is slidably connected in the guide grooves of the bottom profiles of the first sash and the second sash, the limiting wheel comprises a fixing piece, a gasket and a connecting piece, and the connecting piece penetrates through the gasket through a bolt to be connected with the fixing piece in a fastened mode. A telescopic pulley is arranged at the other end of the connecting piece and extends into the guide groove of the third group of bottom section bars; the sliding door has the beneficial effects that the synchronism of the multiple sliding doors in the sliding process can be effectively guaranteed, the distance between the multiple sliding doors is adjustable, and the using convenience and stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sliding door accessories, in particular to the improvement of the linkage device of the sliding door without lower rail. BACKGROUND

[0002] The conventional sliding door mostly relies on the lower rail to guide the sliding and keep stable of the door, the lower rail is easy to accumulate dust and deform, which affects 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 deficiency in the linkage of multiple doors, the synchronization between the multiple doors is poor, the multiple doors are easy to shake during the sliding, and the distance between the doors cannot be adjusted, which not only affects the use experience, but also reduces the service life of the sliding door. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the deficiency of the prior art, the utility model provides a linkage device of the sliding door without lower rail with telescopic limiting wheel, which can effectively ensure the synchronization of the multiple sliding doors during the sliding, the distance between the multiple sliding doors is adjustable, the convenience and stability of use are improved, and the problems of poor synchronization between the multiple doors, easy shaking during the sliding, and unadjustable distance between the doors, which not only affect the use experience, but also reduce the service life of the sliding door, are solved.

[0005] (II) Technical scheme

[0006] In order to realize the above-mentioned advantages of effectively ensuring the synchronization of the multiple sliding doors during the sliding, the distance between the multiple sliding doors is adjustable, and the convenience and stability of use are improved, the utility model adopts the specific technical scheme as follows: it includes bottom profile, guide block, pulley set and limiting wheel, the bottom profile is provided with at least three groups, the bottom profile is provided with guide groove and roller installation groove, the guide groove is located at the side of the roller installation groove, the roller installation groove is provided with breakable rib inside, the pulley set is single-wheel structure, the pulley set is installed in the roller installation groove and located at the inside of the breakable rib, the guide block is slidingly connected in the guide groove of the first and second bottom profiles, the limiting wheel includes fixed sheet, gasket and connecting piece, the fixed sheet is vertical component, the upper part is installed above the breakable rib, the gasket is attached to the longitudinal surface of the fixed sheet, the connecting piece is fastened and connected through the bolt penetrating the gasket and the fixed sheet, the other end of the connecting piece is provided with telescopic pulley, the telescopic pulley extends into the guide groove of the third bottom profile;

[0007] The guide block comprises an upper adjusting plate, a bottom positioning plate, guide wheels and an adjusting groove, the upper adjusting plate is provided with locking holes, 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 correspondingly arranged at the side ends of the upper adjusting plate and the bottom positioning plate and slide in the guide grooves of adjacent bottom profiles, and the surfaces of the upper adjusting plate and the bottom positioning plate are provided with scales.

[0008] Further, the length of the guide groove is shorter than the length of the roller mounting groove.

[0009] Further, the locking hole is provided with a fastener, and the fastener is fastened to the ground through the locking hole and the adjusting groove.

[0010] Further, the upper surface of the fixing sheet can be installed in the breakable rib in the positive and reverse directions.

[0011] (Three) beneficial effects

[0012] Compared with the prior art, the utility model provides a no lower rail sliding door linkage device of telescopic limit wheel, has the following beneficial effects:

[0013] It can adjust the spacing between door bodies, ensures that multiple doors can realize accurate linkage under different installation conditions, improves the convenience and stability of use, is always in good working condition in the running process, and realizes reliable linkage effect. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is one of the structural schematic diagram of the utility model limit wheel 4;

[0017] Figure 3 It is the second structural schematic diagram of the utility model limit wheel 4;

[0018] Figure 4 It is the structural schematic diagram of the utility model guide block 2;

[0019] Figure 5 It is the plan view corresponding to Figure 4 ;

[0020] Figure 6 is a structural schematic diagram of embodiment 2;

[0021] Figure 7 is one of the structural schematic diagrams of guide block 2 in embodiment 2;

[0022] Figure 8 is one of the structural schematic diagrams of guide block 2 in embodiment 2;

[0023] Figure 9 is a structural schematic diagram of limit wheel 4 in embodiment 2;

[0024] Figure 10 is a structural schematic diagram of limit wheel 4 in embodiment 2.

[0025] In the figure: bottom profile 1, guide block 2, pulley set 3, limit wheel 4, scale 6, guide groove 11, roller mounting groove 12, breakable rib 121, fixing plate 41, gasket 42, connecting piece 43, upper adjusting plate 21, telescopic pulley 431, bottom positioning plate 22, guide wheel 23, adjusting groove 24, locking hole 211, protrusion 221, limiting block 212, adjusting seat 432, second pulley 433, adjusting piece 434. DETAILED DESCRIPTION

[0026] To further illustrate the embodiments, the utility model provides the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate the relevant description of the specification to explain the operation 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 indicate similar components.

[0027] According to the embodiment of the utility model, a lower railless sliding door linkage device with telescopic limit wheel is provided.

[0028] Embodiment 1

[0029] As Figures 1-5As shown, according to the utility model embodiment, a telescopic limit wheel's no lower rail sliding door linkage device, it includes bottom section bar 1, guide block 2, pulley group 3 and limit wheel 4, bottom section bar 1 is provided with at least three groups, bottom section bar 1 is provided with guide slot 11 and gyro wheel installation slot 12, guide slot 11 is located the side of gyro wheel installation slot 12, gyro wheel installation slot 12 is provided with the breakable rib 121 in, pulley group 3 is single wheel structure, pulley group 3 is installed in gyro wheel installation slot 12, and is located the inside of breakable rib 121, guide block 2 is slidably connected in the guide slot 11 of first and second bottom section bar 1, limit wheel 4 includes fixed sheet 41, gasket 42 and connecting piece 43, fixed sheet 41 is vertical component, its upper portion is installed above breakable rib 121, gasket 42 is attached to the longitudinal face of fixed sheet 41, connecting piece 43 is fastened by bolt through gasket 42 and fixed sheet 41, another end of connecting piece 43 is provided with telescopic pulley 431, telescopic pulley 431 extends to the guide slot 11 of third bottom section bar 1;

[0030] The guide block 2 includes an upper adjusting plate 21, a bottom positioning plate 22, a guide wheel 23 and an adjusting groove 24. The upper adjusting plate 21 is provided with a locking hole 211. The bottom positioning plate 22 is provided with a protrusion 221 above. The upper adjusting plate 21 is adjusted in the protrusion 221. The adjusting groove 24 is arranged on the surface of the bottom positioning plate 22. Two guide wheels 23 are correspondingly arranged at the side ends of the upper adjusting plate 21 and the bottom positioning plate 22 and slidably arranged in the guide slot 11 of the adjacent bottom section bar 1. The surfaces of the upper adjusting plate 21 and the bottom positioning plate 22 are provided with a scale 6.

[0031] As shown in Figure 1 The length of the guide slot 11 is shorter than the length of the gyro wheel installation slot 12. The problem of knocking between the guide block 2 and the limit wheel 4 and the side of the bottom section bar 1 during sliding is prevented.

[0032] As shown in Figures 4-5 The locking hole 211 is provided with a fastener. The fastener is fastened to the ground through the locking hole 211 and the adjusting groove 24. The upper adjusting plate 21 and the bottom positioning plate 22 are fixed by the fastener and the ground. The upper adjusting plate 21 will not be displaced by cooperating with the protrusion 221 of the bottom positioning plate 22.

[0033] As shown in Figure 1 The upper part of the fixed sheet 41 can be installed in the breakable rib 121 in both directions. The breakable rib 121 is single-row and narrow. The rib can be broken without tearing the double-row.

[0034] Embodiment 2

[0035] As shown in Figures 6-10As shown, the difference between this embodiment and Embodiment 1 is that the upper adjusting plate 21 has limiting blocks 212 on its front and rear sides. The limiting blocks 212 are engaged with the bottom positioning plate 22, allowing the rib 121 to be cut off. The pulley group 3 is a double-wheel structure, installed in the roller mounting groove 12. The other end of the connecting member 43 is provided with an adjusting seat 432, which is provided with a second pulley 433 and an adjusting plate 434. The adjusting plate 434 is movably connected to the connecting member 43 and the adjusting seat 432. The second pulley 433 extends into the guide groove 11 of the third group of bottom profiles 1. By aligning the second pulley 433 on the adjusting seat 432 with the guide groove 11, the connection between the third group of bottom profiles 1 and the second group is achieved, and the distance between them is adjusted by the adjusting plate 434.

[0036] Working principle: According to installation requirements, the door frame profile 1 is equipped with at least three sets of guide blocks 2. The guide blocks 2 are fixed to the ground and are slidably connected in the guide grooves 11 of the bottom profiles 1 of the first and second doors. The pulley assembly 3 is installed in the roller mounting groove 12. The ribs are cut off by the breakable rib strip 121. The pulley assembly 3 can be equipped with single or double pulleys as needed. The connecting piece 43 is fastened to the fixing piece 41 by bolts passing through the washer 42. The other end of the connecting piece 43 is equipped with a telescopic pulley 431. Extending into the guide groove 11 of the bottom profile 1 of the third group; the fixing plate 41 can be arranged at two angles. In order to adapt to different construction scenarios, when it is necessary to fine-tune the lateral position of the limiting wheel 43, a shim 42 is added. The function is to make a lateral adjustment of the limiting wheel 43. This can be done in turn to realize the connection between multiple sliding doors. Alternatively, the second pulley 433 on the adjusting seat 432 can be aligned with the guide groove 11 to realize the connection between the bottom profile 1 of the third group and the second group. The distance between them is adjusted by the adjusting plate 434.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lower rail-free sliding door linkage device with telescopic limit wheel, comprising a bottom profile (1), a guide block (2), a pulley set (3) and a limit wheel (4), characterized in that: The bottom profile (1) is provided with at least three groups, the bottom profile (1) is provided with a guide groove (11) and a roller mounting groove (12), the guide groove (11) is located on the side of the roller mounting groove (12), the roller mounting groove (12) is provided with a breakable rib (121), the pulley set (3) is a single wheel structure, the pulley set (3) is installed in the roller mounting groove (12) and located on the inner side of the breakable rib (121), the guide block (2) is slidingly connected in the guide groove (11) of the first and second group of bottom profiles (1), the limiting wheel (4) includes a fixed sheet (41), a gasket (42) and a connecting piece (43), the fixed sheet (41) is a vertical component, the upper part of which is installed above the breakable rib (121), the gasket (42) is attached to the longitudinal surface of the fixed sheet (41), the connecting piece (43) is tightly connected through the bolt passing through the gasket (42) and the fixed sheet (41), the other end of the connecting piece (43) is provided with a telescopic pulley (431), the telescopic pulley (431) extends into the guide groove (11) of the third group of bottom profiles (1); The guide block (2) includes an upper adjusting plate (21), a bottom positioning plate (22), a guide wheel (23) and an adjusting groove (24), the upper adjusting plate (21) is provided with a locking hole (211), the upper part of the bottom positioning plate (22) is provided with a protrusion (221), the upper adjusting plate (21) is adjusted in the protrusion (221), the adjusting groove (24) is arranged on the surface of the bottom positioning plate (22), two groups of guide wheels (23) are respectively arranged on the side ends of the upper adjusting plate (21) and the bottom positioning plate (22) and slide in the guide groove (11) of the adjacent bottom profile (1), the surface of the upper adjusting plate (21) and the bottom positioning plate (22) is provided with a scale (6).

2. The lower rail-free sliding door linkage device with telescopic limit wheel 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).

3. The lower rail-free sliding door linkage device with telescopic limit wheel according to claim 2, characterized in that: The locking hole (211) is provided with a fastener, which is fastened to the ground through the locking hole (211) and the adjusting groove (24).

4. The lower rail-free sliding door linkage device with telescopic limit wheel according to claim 1, characterized in that: The upper part of the fixed sheet (41) can be installed in the breakable rib (121) in both directions.

5. The lower rail-free sliding door linkage device with telescopic limit wheel according to claim 1, characterized in that: The front and rear sides of the upper adjusting plate (21) are provided with limiting blocks (212), the limiting blocks (212) are clamped on the bottom positioning plate (22), the breakable rib (121) is broken, the pulley set (3) is a double wheel structure, the pulley set (3) is installed in the roller mounting groove (12), the other end of the connecting piece (43) is provided with an adjusting seat (432), the adjusting seat (432) is provided with a second pulley (433) and an adjusting sheet (434), the adjusting sheet (434) is movably connected in the connecting piece (43) and the adjusting seat (432), the second pulley (433) extends into the guide groove (11) of the third group of bottom profiles (1).

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