Lower-rail-free sliding door lower wheel limiting mechanism

Abstract

The utility model discloses a lower-rail-free sliding door lower wheel limiting mechanism which comprises a movable sash profile, a limiting wheel, a roller assembly, a positioning plate and a cleaning brush, a limiting groove is formed in the movable sash profile, one end of the positioning plate is connected to the upper portion of the roller assembly, the other end of the positioning plate is arranged along the edge side of the roller assembly, and the cleaning brush is arranged in the limiting groove. The positioning plate extends into the limiting groove of the adjacent movable sash sectional material, the limiting wheel is arranged on the plane below the positioning plate, the limiting wheel is connected into the limiting groove in a sliding mode, a column rod is arranged in the rolling wheel assembly, and a plurality of sets of cleaning bristles are clamped to the column rod. The window has the advantages that the window is simple in structure and capable of making direct contact with the ground, a traditional ground rail bar is not needed any more, the function of cleaning the ground is achieved, and the effects of stable movement between the movable sash profiles and swing prevention are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slide rails, and specifically relates to an improvement of a lower wheel limit mechanism for a sliding door. Background Art

[0002] Traditional sliding doors usually need to be installed on a lower track to achieve smooth movement and positioning. However, the lower track is prone to accumulating dust and debris, resulting in unsmooth movement of the door body and generation of noise, making the ground at the door passage uneven, which is easy to trip pedestrians. The uneven ground is also prone to hiding dirt and is not easy to clean, and it is inconvenient for cleaning and maintenance. In addition, the existence of the lower track also affects the overall aesthetics and traffic convenience of the ground. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a lower wheel limit mechanism for a sliding door without a lower track, which has the advantages of simple structure, can directly contact the ground, no longer uses traditional ground track strips, realizes a clean ground and is easy to clean, thereby solving the problems of unsmooth movement of the door body and generation of noise, making the ground at the door passage uneven, which is easy to trip pedestrians. The uneven ground is also prone to hiding dirt and is not easy to clean, and it is inconvenient for cleaning and maintenance. In addition, the existence of the lower track also affects the overall aesthetics and traffic convenience of the ground.

[0005] (2) Technical Solutions

[0006] To achieve the above-mentioned advantages of simple structure, directly contacting the ground, no longer using traditional ground track strips, realizing a clean ground and being easy to clean, the specific technical solutions adopted by the utility model are as follows:

[0007] A lower wheel limit mechanism for a sliding door without a lower track, which includes a movable fan profile, a limit wheel, a roller assembly, a positioning plate and a cleaning brush. A limit groove is provided in the movable fan profile. One end of the positioning plate is connected above the roller assembly, and the other end of the positioning plate extends along the side of the roller assembly into the limit groove of the adjacent movable fan profile. The limit wheel is arranged on the lower plane of the positioning plate, and the limit wheel is slidably connected in the limit groove. A column rod is arranged in the roller assembly, and several groups of cleaning brushes are clamped on the column rod.

[0008] Further, a positioning groove is opened above the movable fan profile, and metal or wooden doors and windows can be installed in the positioning groove.

[0009] Further, the guide rail strip is an F-shaped rail strip, which is applicable to movable fan profiles of different widths, and the length of the guide rail strip is equal to that of the movable fan profile.

[0010] Further, the limit wheel cooperates with the limit groove, and the limit wheel slides in the limit groove.

[0011] Further, the roller assembly includes a slide rail bracket, a load-bearing wheel set, a ring groove, a positioning strip, and a protrusion. The positioning strip is arranged inside the slide rail bracket, and a positioning pin is connected to the middle of the positioning strip. The positioning pin is inserted into the ring groove, and the ring groove is arranged on the slide rail bracket. The protrusion is fixedly connected to the inner side of the array of positioning strips, and an adjusting block is clamped inside the protrusion. The array of load-bearing wheel sets are respectively installed at both ends of the positioning strip.

[0012] Further, the load-bearing wheel set is provided with at least two load-bearing wheels, and the number of load-bearing wheels is determined by the width of the chute of the movable fan profile. A connecting rod is arranged between the load-bearing wheels.

[0013] Further, the cleaning brush is provided with a buckle and a brush body. The brush body is clamped on the buckle, and the buckle is clamped on the column rod. The buckle is provided with a T-shaped groove and a clamping groove. The T-shaped groove is located below the clamping groove, and a clamping block that is clamped with the T-shaped groove is arranged on the brush body.

[0014] Further, the positioning plate is a Z-shaped member and is provided with a first adjusting hole and a second adjusting hole. The first adjusting hole is perpendicular above the second adjusting hole, and an array of the first adjusting holes and the second adjusting holes are provided. The limiting wheel is installed on the bottom surface of the positioning plate.

[0015] Further, the number of the first adjusting holes and the second adjusting holes is freely set according to the actual installation conditions and the distance between the door leaves.

[0016] The guide rail strip can also be set as an L-shaped guide rail. The clamping groove between the roller assembly and the L-shaped guide rail is a second limiting groove. A guiding block is arranged on the side of the roller assembly, and a guiding angle is arranged on the guiding block. The limiting wheel is corrected into the second limiting groove through the guiding angle.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present utility model provides a lower-wheel limiting mechanism for a bottomless sliding door, which has the following beneficial effects:

[0019] It has a simple structure and can be directly in contact with the ground without using a traditional ground rail strip, achieving the advantages of a clean ground and easy cleaning. By installing the positioning plate between the movable fan profile and the guide rail strip, the positioning plate is used in combination with guide rail strips of different widths. The limiting wheel is slidably connected in the limiting groove. By installing the limiting wheel on the side of the roller assembly, the movable fan profiles are driven to move smoothly. The cleaning brush can move as the roller assembly rotates, thereby realizing the cleaning function of the ground, and also having the effects of smooth movement and anti-swing between the movable fan profiles. Description of the drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the structural schematic diagram of the present invention;

[0022] Figure 2 is the corresponding Figure 1 bottom view;

[0023] Figure 3 is the structural schematic diagram of the positioning plate 4 in the present invention;

[0024] Figure 4 is one of the structural schematic diagrams of the roller assembly 3 in the present invention;

[0025] Figure 5 is another structural schematic diagram of the roller assembly 3 in the present invention;

[0026] Figure 6 is the structural schematic diagram of the cleaning brush 5 in the present invention;

[0027] Figure 7 is one of the structural schematic diagrams of Embodiment 2 of the present invention;

[0028] Figure 8 is another structural schematic diagram of Embodiment 2 of the present invention;

[0029] Figure 9 is the third structural schematic diagram of Embodiment 2 of the present invention.

[0030] In the figure: movable fan profile 1, limit wheel 2, roller assembly 3, positioning plate 4, cleaning brush 5, guide rail bar 6, limit groove 61, slide rail bracket 31, load-bearing wheel group 32, ring groove 33, positioning bar 34, protrusion 36, adjusting block 37, column rod 38, guide block 39, buckle 51, brush body 52, T-shaped groove 511, card slot 512, card block 521, first adjustment hole 41, second adjustment hole 42, second limit groove 62. Detailed implementation manners

[0031] To further illustrate each embodiment, the present utility model provides accompanying drawings, which are a part of the disclosure of the present utility model. These drawings mainly serve to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0032] Embodiment 1

[0033] As Figure 1-6 shown, the technical solution adopted in this specific implementation manner is as follows: A lower-wheel limit mechanism for a trackless sliding door according to an embodiment of the present utility model includes a movable sash profile 1, a limit wheel 2, a roller assembly 3, a positioning plate 4, and a cleaning brush 5. A guide rail bar 6 is provided inside the movable sash profile 1, and a limit groove 61 is opened on the guide rail bar 6. One end of the positioning plate 4 is connected above the roller assembly 3, and the other end of the positioning plate 4 extends along the side of the roller assembly 3 to the limit groove 61 of the adjacent movable sash profile 1. The limit wheel 2 is arranged on the lower plane of the positioning plate 4, and the limit wheel 2 is slidably connected in the limit groove 61. A column rod 38 is provided inside the roller assembly 3, and several groups of cleaning brushes 5 are clamped on the column rod 38. By installing the limit wheel 2 on the side of the roller assembly 3, the movable sash profiles 1 are driven to move smoothly. The cleaning brush 5 can move along with the rotation of the roller assembly 3, thereby realizing the function of cleaning the ground.

[0034] As Figure 1-6 shown, a positioning groove 11 is opened above the movable sash profile 1, and metal or wooden doors and windows can be installed in the positioning groove 11. It is applicable to U-shaped profiles of metal or wooden doors and windows below.

[0035] As Figure 1-6 shown, the guide rail bar 6 is an F-shaped rail bar. This facilitates the sliding of the limit wheel 2 in the F-shaped groove and solves the problem of shaking. The guide rail bar 6 is applicable to movable sash profiles 1 of different widths, and the length of the guide rail bar 6 is equal to that of the movable sash profile 1. The limit groove 61 runs through both ends of the guide rail bar 6.

[0036] As Figure 1-6 shown, the limit wheel 2 cooperates with the limit groove 61, and the limit wheel 2 slides in the limit groove 61. This solves the problem of shaking and enables the movable sash profiles 1 to move smoothly.

[0037] As FigureAs shown in the figure, the roller assembly 3 includes a slide rail bracket 31, a load-bearing wheel set 32, an annular groove 33, a positioning strip 34, and a protrusion 36. The positioning strip 34 is arranged inside the slide rail bracket 31, and a positioning pin 35 is connected to the middle of the positioning strip 34. The positioning pin 35 is inserted into the annular groove 33, and the annular groove 33 is arranged on the slide rail bracket 31. The protrusion 36 is fixedly connected to the inner side of the array of positioning strips 34, and an adjusting block 37 is clamped inside the protrusion 36. The array of load-bearing wheel sets 32 are respectively installed at both ends of the positioning strip 34. Thus, the problem that the door body is not easy to sag is solved, and the height of the load-bearing wheel set 32 can be adjusted, realizing the adjustment of the height and angle of the door body.

[0038] As ​ shown in the figure, the load-bearing wheel set 32 is provided with at least two load-bearing wheels, and the number of load-bearing wheels is determined by the width of the chute of the movable fan profile 1. A connecting rod is arranged between the load-bearing wheels. The load-bearing wheels are connected by the connecting rod, thereby improving the stability of the sliding door.

[0039] As ​ shown in the figure, the cleaning brush 5 is provided with a buckle 51 and a brush body 52. The brush body 52 is clamped on the buckle 51, and the buckle 51 is clamped on the column rod 38. The buckle 51 is provided with a T-shaped groove 511 and a clamping groove 512. The T-shaped groove 511 is located below the clamping groove 512, and a clamping block 521 engaged with the T-shaped groove 511 is arranged on the brush body 52. The cleaning brush 5 can move along with the rotation of the roller assembly 3, thereby realizing the cleaning function of the ground.

[0040] As ​ shown in the figure, the positioning plate 4 is a Z-shaped member and is provided with a first adjustment hole 41 and a second adjustment hole 42. The first adjustment hole 41 is perpendicular above the second adjustment hole 42, and an array of the first adjustment holes 41 and the second adjustment holes 42 are provided. The limit wheel 2 is installed on the bottom surface of the positioning plate 4. The arrangement of the first adjustment hole 41 and the second adjustment hole 42 can adjust the distance between the roller assembly 3 and the guide rail strip 6. The limit wheel 2 slides in the limit groove 61, solving the problem of shaking and enabling the smooth movement between the movable fan profiles 1.

[0041] As ​ shown in the figure, the number of the first adjustment holes 41 and the second adjustment holes 42 is freely set according to the actual installation conditions and the distance between the door leaves.

[0042] The guide rail strip 6 can also be set as an L-shaped guide rail. The clamping groove between the roller assembly 3 and the L-shaped guide rail is a second limit groove 62. A guide block 39 is arranged on the side of the roller assembly 3, and a guide angle is arranged on the guide block 39. The limit wheel 2 is deflected into the second limit groove 62 through the guide angle.

[0043] Embodiment 2

[0044] Refer to ​ As shown, the difference between this embodiment and Embodiment 1 is that the guide rail strip 6 can also be set as an L-shaped rail strip. The clamping groove between the roller assembly 3 and the L-shaped rail strip is the second limiting groove 62. A guiding block 39 is arranged on the side of the roller assembly 3, and a guiding angle is arranged on the guiding block 39. The limiting wheel 2 is corrected into the second limiting groove 62 through the guiding angle. When using the L-shaped track, it is convenient for the limiting wheel 2 to smoothly enter the second limiting groove 62, correcting the phenomenon of deviation, so as to achieve the effect of preventing swing.

[0045] Working principle: By installing the positioning plate 4 between the movable fan profile 1 and the guide rail strip 6, the positioning plate 4 is used in combination with guide rail strips 6 of different widths. The limiting wheel 2 is slidably connected in the limiting groove 61. A column rod 38 is arranged in the roller assembly 3, and a plurality of cleaning brushes 5 are clamped on the column rod 38. By installing the limiting wheel 2 on the side of the roller assembly 3, the movable fan profiles 1 are driven to move smoothly. The cleaning brush 5 can move along with the rotation of the roller assembly 3, so as to realize the function of cleaning the ground. The positioning plate 4 is a Z-shaped component. The settings of the first adjustment hole 41 and the second adjustment hole 42 can adjust the distance between the roller assembly 3 and the guide rail strip 6. The limiting wheel 2 slides in the limiting groove 61, solving the problem of shaking, enabling the movable fan profiles 1 to move smoothly. The guide rail strip 6 is any one of an F-shaped rail strip or an L-shaped rail strip. When the guide rail strip 6 is an L-shaped rail strip, the clamping groove between the roller assembly 3 and the L-shaped rail strip is the second limiting groove 62. A guiding block 39 is arranged on the side of the roller assembly 3, and a guiding angle is arranged on the guiding block 39. The limiting wheel 2 is corrected into the second limiting groove 62 through the guiding angle, which is convenient for the limiting wheel 2 to smoothly enter the second limiting groove 62, correcting the phenomenon of deviation, so as to achieve the effect of preventing swing.

[0046] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "rotation connection" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A lower-wheel limiting mechanism for a push-pull door without a lower track, characterized in that: It includes a movable fan profile (1), a limit wheel (2), a roller assembly (3), a positioning plate (4) and a cleaning brush (5). A guide rail bar (6) is arranged inside the movable fan profile (1), and a limit groove (61) is opened on the guide rail bar (6). One end of the positioning plate (4) is connected above the roller assembly (3), and the other end of the positioning plate (4) extends along the side of the roller assembly (3) into the limit groove (61) of the adjacent movable fan profile (1). The limit wheel (2) is arranged on the lower plane of the positioning plate (4), and the limit wheel (2) is slidably connected in the limit groove (61). A column rod (38) is arranged inside the roller assembly (3), and a plurality of groups of cleaning brushes (5) are clamped on the column rod (38).

2. The lower wheel limiting mechanism of a push-pull door without a lower track according to claim 1, characterized in that: A positioning groove (11) is opened above the movable fan profile (1), and metal or wooden doors and windows can be installed in the positioning groove (11).

3. The lower wheel limiting mechanism of the push-pull door without a lower track according to claim 1, characterized in that: The guide rail bar (6) is an F-shaped rail bar, the guide rail bar (6) is applicable to movable fan profiles (1) of different widths, and the guide rail bar (6) is equal in length to the movable fan profile (1).

4. The lower wheel limit mechanism of a push-pull door without a lower track according to claim 1, characterized in that: The limit wheel (2) is matched with the limit groove (61), and the limit wheel (2) slides in the limit groove (61).

5. The lower wheel limit mechanism of a push-pull door without a lower track according to claim 1, characterized in that: The roller assembly (3) includes a slide rail bracket (31), a load-bearing wheel group (32), an annular groove (33), a positioning strip (34), and a protrusion (36). The positioning strip (34) is arranged inside the slide rail bracket (31), a positioning pin (35) is connected to the middle of the positioning strip (34), the positioning pin (35) is inserted into the annular groove (33), the annular groove (33) is arranged on the slide rail bracket (31), the protrusion (36) is fixedly connected to the inner side of a plurality of groups of positioning strips (34), an adjusting block (37) is clamped in the protrusion (36), and a plurality of groups of load-bearing wheel groups (32) are respectively installed at both ends of the positioning strip (34).

6. The lower wheel limit mechanism of a push-pull door without a lower track according to claim 5, characterized in that: The load-bearing wheel group (32) is provided with at least two load-bearing wheels, and the number of load-bearing wheels is determined by the width of the chute of the movable fan profile (1). A connecting rod is arranged between the load-bearing wheels.

7. The lower wheel limit mechanism of a push-pull door without a lower track according to claim 1, characterized in that: The cleaning brush (5) is provided with a buckle (51) and a brush body (52). The brush body (52) is clamped on the buckle (51), the buckle (51) is clamped on the column rod (38), the buckle (51) is provided with a T-shaped groove (511) and a clamping groove (512), the T-shaped groove (511) is located below the clamping groove (512), and a clamping block (521) is arranged on the brush body (52) and is clamped with the T-shaped groove (511).

8. The lower wheel limit mechanism of the push-pull door without a lower track according to claim 1, characterized in that: The positioning plate (4) is a Z-shaped member and is provided with a first adjusting hole (41) and a second adjusting hole (42). The first adjusting hole (41) is perpendicular above the second adjusting hole (42), and a plurality of groups of the first adjusting hole (41) and the second adjusting hole (42) are provided. The limit wheel (2) is installed on the bottom surface of the positioning plate (4).

9. The lower wheel limit mechanism of a bottomless sliding door according to claim 8, characterized in that: The number of the first adjusting holes (41) and the second adjusting holes (42) is freely set according to the actual installation conditions and the distance between the door leaves.

10. The lower wheel limit mechanism of a push-pull door without a lower track according to claim 1, characterized in that: The guide rail bar (6) can also be set as an L-shaped guide rail, the clamping groove between the roller assembly (3) and the L-shaped guide rail is the second limiting groove (62), a guide block (39) is arranged on the side of the roller assembly (3), a guiding angle is arranged on the guide block (39), and the limiting wheel (2) is corrected to the second limiting groove (62) through the guiding angle.

Images