Derailing-preventing sliding structure of sliding door

Abstract

The utility model discloses an anti-derailment sliding structure of a sliding door, which comprises a first base, a roller is rotatably connected onto the first base, a guide rail matched with the roller is arranged below the roller, a strip-shaped rail protruding upwards is arranged at the top of the guide rail, the cross section of the roller is I-shaped, a rolling groove is arranged at the end part of the roller, and the roller is provided with a sliding groove. The rolling grooves are inserted into the strip-shaped rails from top to bottom and can roll on the strip-shaped rails, anti-disengaging grooves are formed in the side faces of the guide rails, anti-disengaging hooks extending into the anti-disengaging grooves are fixedly connected to the first bases, and the anti-disengaging hooks and the anti-disengaging grooves are matched with each other to limit the rollers to move upwards. The push-pull device has the advantages of being not prone to derailing and stable in push-pull.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding doors and windows, in particular to an anti-derailment sliding structure for a sliding door. Background Art

[0002] Traditional sliding doors generally use rollers and guide rails to realize the door's opening and closing functions. The rollers are installed under the door and roll on the guide rails placed on the ground or under the door frame. This structural design allows the door to slide along a fixed track, saving the space required for opening inward and outward, while also providing a smooth opening and closing experience.

[0003] However, this structure often has some problems during long-term use. One of the most common problems is that the rollers are easy to fall off the guide rails. Since the rollers continue to bear the weight of the door panels and the dynamic pressure during pushing and pulling, they may cause wear or deformation over time. Even under severe or improper pushing and pulling, the rollers may completely fall off the guide rails, causing the doors and windows to fall suddenly, which not only affects the user experience, but also poses a threat to the safety of users.

[0004] In addition, the unevenness of the building wall is another factor that affects the stability of sliding doors. During installation, if the unevenness of the wall is not properly handled, the doors and windows may be installed in a tilted state. This not only affects the appearance, but also increases the friction between the rollers and the guide rails, resulting in uneven sliding and accelerated wear of the rollers and guide rails. Furthermore, uneven installation can also cause the door to wobble during use, and in some cases may even cause it to get stuck or derail.

[0005] Therefore, it is necessary to further improve and perfect the prior art to overcome these deficiencies, and the present invention is made based on this situation. Utility Model Content

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a sliding door anti-derailing sliding structure which is not easy to derail and has stable pushing and pulling.

[0007] The utility model is realized through the following technical solutions:

[0008] In order to solve the above technical problems, the utility model provides an anti-derailment sliding structure for a sliding door, comprising a first base, a roller rotatably connected to the first base, a guide rail matching the roller is provided below the roller, a strip track protruding upward is provided on the top of the guide rail, the cross-section of the roller is I-shaped and a rolling groove is provided at the end thereof, the rolling groove is inserted into the strip track from top to bottom and can roll thereon, an anti-derailment groove is provided on the side of the guide rail, an anti-derailment hook extending into the anti-derailment groove is fixedly connected to the first base, and the anti-derailment hook and the anti-derailment groove cooperate with each other to limit the upward movement of the roller.

[0009] In order to further solve the technical problem to be solved by the utility model, the utility model provides a sliding door anti-derailment sliding structure, wherein the anti-derailment groove is provided with an upper side wall, and the anti-derailment hook is provided with a hook body extending under the upper side wall, and a gap is provided between the hook body and the upper side wall.

[0010] In order to further solve the technical problem to be solved by the utility model, in a sliding door anti-derailment sliding structure provided by the utility model, the upper side wall is inclined outwardly and downwardly.

[0011] In order to further solve the technical problem to be solved by the utility model, the utility model provides a sliding structure for preventing derailment of a sliding door, wherein a second base is movably connected to the first base, the second base is provided with a plurality of fasteners for fixing the door panel and simultaneously fixing the first base and the second base, and a fine-tuning structure for fine-tuning the height of the second base and the door panel is provided between the first base and the second base.

[0012] In order to further solve the technical problem to be solved by the utility model, the utility model provides a sliding door anti-derailment sliding structure, in which the fine-tuning structure includes a first threaded hole arranged on the second base, and a top screw fitted in the first threaded hole, and the lower end of the top screw extends downward from the first threaded hole and can press the first base downward.

[0013] In order to further solve the technical problem to be solved by the utility model, the utility model provides a sliding structure for preventing derailment of a sliding door, wherein the second base includes an inner plate and an outer plate respectively located on the inner and outer sides of the first base, the outer plate is provided with a through hole, the first base is provided with a strip hole for a fastener to pass through and move up and down therein, the inner plate is provided with a second threaded hole, the fastener passes through the door panel, the through hole on the outer plate, the strip hole on the first base from the outside to the inside in sequence and is threadedly engaged in the second threaded hole on the inner plate.

[0014] In order to further solve the technical problem to be solved by the utility model, in a sliding door anti-derailment sliding structure provided by the utility model, the end of the upper side wall of the anti-derailment groove is rounded.

[0015] In order to further solve the technical problem to be solved by the utility model, in a sliding structure for preventing derailment of a sliding door provided by the utility model, the roller is equipped with a bearing, and the bearing is detachably connected to the first base.

[0016] In order to further solve the technical problem to be solved by the utility model, in a sliding structure for preventing derailment of a sliding door provided by the utility model, a buffer sleeve is provided on the fastener and passes through the corresponding mounting hole of the door panel, and a buffer pad is provided between the second base and the door panel.

[0017] In order to further solve the technical problem to be solved by the utility model, in a sliding structure for preventing derailment of a sliding door provided by the utility model, a shell is detachably connected to the second base.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The roller is designed with an I-shaped cross section and a rolling groove at the end. This design is intended to provide the roller with a larger contact area and stronger load-bearing capacity, thereby ensuring that the door panel is more stable during the sliding process. The guide rail is the part used in conjunction with the roller, and the top of the guide rail is designed with an upward protruding strip track that matches the I-shaped cross section of the roller. The rolling groove of the roller is sleeved on the strip track from top to bottom and can roll freely on the track. This interlocking design ensures that the roller can roll smoothly on the guide rail while limiting the lateral movement of the roller, thereby improving the sliding smoothness while reducing shaking and noise.

[0020] 2. In order to further ensure this stable state, the utility model is provided with an anti-slip groove on the side of the guide rail, and an anti-slip hook extending into the anti-slip groove is fixedly connected to the first base. The anti-slip hook extends into the anti-slip groove, forming a simple but effective anti-slip structure with it. When an external force may cause the roller to move upward, the anti-slip hook immediately contacts the anti-slip groove to prevent further displacement, thus fundamentally eliminating the possibility of derailment.

[0021] 3. By rotating the top screw, the height of the door panel can be precisely adjusted. The top pressure at the bottom of the top screw can slightly lift or lower the second base, thereby compensating for the unevenness of the ground or wall during installation. This fine-tuning mechanism not only ensures the stability and service life of the doors and windows, but also greatly facilitates the installers to carry out precise installation and subsequent adjustment and maintenance work. Through this design, even in a more complex installation environment, it can ensure the stability and smoothness of the doors and windows when they are pushed and pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is an exploded schematic diagram of the utility model (the guide rail is not shown);

[0025] Figure 3 It is a top view of the utility model;

[0026] Figure 4 yes Figure 3 Sectional view at AA;

[0027] Figure 5 yes Figure 3 Cross-sectional view at BB in the middle. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figures 1 to 5 The anti-derailment sliding structure of a sliding door shown in the figure comprises a first base 1, on which a roller 2 is rotatably connected, and a guide rail 3 adapted thereto is provided below the roller 2. Specifically, the roller 2 is designed to have an I-shaped cross section, and a rolling groove 21 is provided at its end, and this design is intended to provide the roller with a larger contact area and a stronger bearing capacity, thereby ensuring that the door panel is more stable during the sliding process. The guide rail 3 is a part used in conjunction with the roller 2, and a strip track 31 protruding upwards and adapted to the I-shaped cross section of the roller 2 is designed at its top. The rolling groove 21 of the roller 2 is sleeved on the strip track 31 from top to bottom and can roll freely on the track. This interlocking design ensures that the roller can roll smoothly on the guide rail, while limiting the lateral movement of the roller, thereby reducing shaking and noise while improving the sliding smoothness.

[0030] The design of the roller 2 is to make its rolling groove 21 perfectly fit with the strip track 31 on the guide rail 3. The uniqueness of this design is that as long as the roller 2 does not move upward, the rolling groove 21 will not be separated from the strip track 31, and the problem of derailment will not occur.

[0031] In order to further ensure this stable state, the utility model is provided with an anti-slip groove 32 on the side of the guide rail 3, and an anti-slip hook 11 extending into the anti-slip groove 32 is fixedly connected to the first base 1. The original intention of the design of the anti-slip hook 11 is to provide a safety guarantee without interfering with the normal sliding of the roller 2. It extends into the anti-slip groove 32, forming a simple but effective anti-slip structure with it. During the normal use of the door, this combination has no interference and can immediately prevent accidents; when external force may cause the roller 2 to move upward, the anti-slip hook 11 immediately contacts the anti-slip groove 32 to prevent further displacement, thus fundamentally eliminating the possibility of derailment.

[0032] Of course, during normal sliding, the anti-slip hook 11 does not directly contact the anti-slip groove 32, but has a certain gap, which can ensure smooth sliding and provide protection when necessary.

[0033] In summary, the design of the sliding door anti-derailment sliding structure combines stability, smoothness and safety. This structure not only reliably prevents the occurrence of derailment, but also ensures the stability of the sliding door when sliding.

[0034] More specifically, the anti-slip groove 32 is provided with an upper side wall 321 , and the anti-slip hook 11 is provided with a hook body 111 extending below the upper side wall 321 , and the hook body 111 is generally L-shaped.

[0035] Of course, there is a gap between the hook body 111 and the upper side wall 321. This gap ensures that the anti-slip hook 11 will not generate unnecessary friction with the anti-slip groove 32 during normal use of the sliding door, ensuring the smooth movement of the door. At the same time, when encountering abnormal situations, such as when the door body may be lifted upward due to external force, the hook body 111 can immediately contact the upper side wall 321 to play an anti-slip effect.

[0036] More specifically, the upper side wall 321 is inclined outward and downward. Specifically, the outward and downward inclined structure of the upper side wall 321 reduces the contact area between the hook body 111 of the anti-off hook 11 and the upper side wall 321, thereby reducing the friction coefficient. The cleverness of this design is that it allows the sliding door to maintain smooth and easy movement during normal use, minimizing the probability of jamming.

[0037] At the same time, this structure can react quickly to ensure safety when facing an upward force, even in the case of a sudden impact or external force. When the door body is lifted upward by force and tries to get out of the guide rail, the hook body 111 moves upward to contact the upper side wall 321. In addition to being unable to move upward, it is also difficult to move outward, thereby effectively preventing the door body from moving further upward and preventing derailment.

[0038] In addition, the end of the upper side wall 321 is designed with rounded corners. This detail not only beautifies the appearance of the entire anti-slip structure, but also reduces the risk of damage caused by sharp angles. At the same time, it also allows the anti-slip hook 11 to interact with it more smoothly, reducing the jamming phenomenon caused by angle problems.

[0039] The unevenness of the wall or the ground may cause the unevenness of the doors and windows, thereby affecting the stability of the doors and windows when they are pushed and pulled. Therefore, the present invention also designs a fine-tuning structure for fine-tuning the height of the second base 4 and the door panel, as follows:

[0040] More specifically, the first base 1 is movably connected to the second base 4, the second base 4 is provided with a plurality of fasteners 5 (the fasteners 5 are preferably screws) for fixing the door panel and the first base 1 and the second base 4 at the same time, and a fine-tuning structure is provided between the first base 1 and the second base 4 for fine-tuning the height of the second base 4 and the door panel.

[0041] Furthermore, the fine-tuning structure includes a first threaded hole 41 provided on the second base 4, and a top screw 42 fitted in the first threaded hole 41, and the lower end of the top screw 42 extends downward from the first threaded hole 41 and can press downward on the first base 1. This simple and ingenious design allows the height of the second base 4 to be finely adjusted by rotating the top screw 42, thereby adjusting the flatness and height of the door panel.

[0042] By rotating the top screw 42, the height of the door panel can be precisely fine-tuned. The top pressure of the lower end of the top screw can slightly lift or lower the second base 4, thereby compensating for the unevenness of the ground or wall during installation. This fine-tuning mechanism not only ensures the stability and service life of the doors and windows, but also greatly facilitates the installers to perform precise installation and subsequent adjustment and maintenance work. Through this design, even in a more complex installation environment, it can ensure the stability and smoothness of the doors and windows when they are pushed and pulled.

[0043] More specifically, the second base 4 includes an inner plate 4a and an outer plate 4b respectively located on the inner and outer sides of the first base 1, the outer plate 4b is provided with a through hole 4b1, the first base 1 is provided with a strip hole 12 for the fastener 5 to pass through and move up and down therein, the inner plate 4a is provided with a second threaded hole 4a1, the fastener 5 passes through the door panel, the through hole 4b1 on the outer plate 4b, the strip hole 12 on the first base 1 from the outside to the inside in sequence and is threadedly engaged in the second threaded hole 4a1 on the inner plate 4a.

[0044] More specifically, for easy installation, the first base 1 and the anti-disconnection hook 11 are preferably connected as one piece, and the roller 2 and the first base 1 are detachably connected. The roller 2 is equipped with a bearing 22, and the bearing 22 is detachably connected to the first base 1. The detachable connection here is preferably a threaded connection.

[0045] More specifically, a buffer sleeve 51 is sleeved on the fastener 5 and inserted into the corresponding mounting hole of the door panel, and a buffer pad 4c is provided between the second base 4 and the door panel. The door panel is mostly a glass panel, and the buffer sleeve 51 and the buffer pad 4c are both used to buffer the door panel to avoid hard contact.

[0046] More specifically, the second base 4 is detachably connected to a housing 4d. The housing 4d mainly serves as a protective function and a dustproof function. Since the housing 4d is detachable, it makes future maintenance work easier. When the second base 4 needs to be inspected or adjusted, the maintenance personnel can easily remove the housing 4d, perform the necessary operations, and then install it back after completion, which greatly simplifies the maintenance process.

Claims

1. A sliding door anti-derailment sliding structure, characterized in that: The invention comprises a first base (1), a roller (2) being rotatably connected to the first base (1), a guide rail (3) matching the roller (2) being provided below the roller (2), a strip track (31) protruding upward being provided on the top of the guide rail (3), the roller (2) having an I-shaped cross section and a rolling groove (21) being provided at the end thereof, the rolling groove (21) being inserted into the strip track (31) from top to bottom and being able to roll thereon, an anti-slip groove (32) being provided on the side of the guide rail (3), an anti-slip hook (11) extending into the anti-slip groove (32) being fixedly connected to the first base (1), the anti-slip hook (11) and extending into the anti-slip groove (32) cooperating with each other to limit the upward movement of the roller (2).

2. The anti-derailment sliding structure for sliding door according to claim 1, characterized in that: The anti-slip groove (32) is provided with an upper side wall (321), and the anti-slip hook (11) is provided with a hook body (111) extending below the upper side wall (321), and a gap is provided between the hook body (111) and the upper side wall (321).

3. The anti-derailment sliding structure for sliding door according to claim 2, characterized in that: The upper side wall (321) is in an inclined shape that slopes outward and downward.

4. The anti-derailment sliding structure for sliding door according to claim 1, characterized in that: The first base (1) is movably connected to a second base (4); the second base (4) is provided with a plurality of fasteners (5) for fixing the door panel and simultaneously fixing the first base (1) and the second base (4); and a fine-tuning structure for fine-tuning the height of the second base (4) and the door panel is provided between the first base (1) and the second base (4).

5. The anti-derailment sliding structure for sliding door according to claim 4, characterized in that: The fine-tuning structure comprises a first threaded hole (41) provided on the second base (4), and a top screw (42) fitted in the first threaded hole (41), wherein the lower end of the top screw (42) extends downwardly out of the first threaded hole (41) and can press the first base (1) downwardly.

6. The anti-derailment sliding structure for sliding door according to claim 4, characterized in that: The second base (4) comprises an inner plate (4a) and an outer plate (4b) respectively located on the inner and outer sides of the first base (1); the outer plate (4b) is provided with a through hole (4b1); the first base (1) is provided with a strip hole (12) for the fastener (5) to pass through and move up and down therein; the inner plate (4a) is provided with a second threaded hole (4a1); the fastener (5) passes through the door panel, the through hole (4b1) on the outer plate (4b), the strip hole (12) on the first base (1) in sequence from the outside to the inside, and is threadedly engaged in the second threaded hole (4a1) on the inner plate (4a).

7. The anti-derailment sliding structure for sliding door according to claim 3, characterized in that: The end of the upper side wall (321) of the anti-slip groove (32) has a rounded corner.

8. The anti-derailment sliding structure for sliding door according to claim 1, characterized in that: The roller (2) is fitted with a bearing (22), and the bearing (22) is detachably connected to the first base (1).

9. The anti-derailment sliding structure for sliding door according to claim 4, characterized in that: The fastener (5) is sleeved with a buffer sleeve (51) which is inserted into a corresponding mounting hole of the door panel, and a buffer pad (4c) is provided between the second base (4) and the door panel.

10. The anti-derailment sliding structure for sliding door according to claim 4, characterized in that: The second base (4) is detachably connected to a housing (4d).

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