Limiting mechanism for sliding door

Abstract

The utility model discloses a limit mechanism for a sliding door, which comprises a bottom section bar, a guide block, a pulley block and a limit wheel, the bottom section bar is provided with a single and double glass mounting cavity, a pulley mounting groove and a guide wall, the single and double glass mounting cavity is vertically arranged at the top of the bottom section bar, the pulley mounting groove is arranged below the single and double glass mounting cavity, and the guide wall is arranged below the pulley mounting groove. The two sets of guide walls are arranged on the two sides of the pulley mounting groove respectively, the guide blocks are slidably connected to the side ends of the guide walls of the bottom profiles of the first sash and the second sash, the pulley blocks are arranged in the pulley mounting groove, and the two sets of limiting wheels are away from the guide blocks and correspondingly arranged on the outer sides of the guide arms on the other sides respectively. The device has the advantages of being accurate in guiding, smooth in sliding, adjustable in height and reliable in limiting.

Description

Technical Field

[0001] This utility model relates to the technical field of sliding door accessories, specifically to an improvement of the limiting mechanism of a sliding door. Background Technology

[0002] In modern architecture, the smoothness and stability of opening and closing doors and windows have a significant impact on user experience and the overall performance of the building. Traditional bottom sliding structures for doors and windows often suffer from inaccurate guidance, non-adjustable pulley height, and poor limiting effect, which can easily lead to jamming, shaking, or even derailment during use, affecting the lifespan of the doors and windows. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a limiting mechanism for sliding doors, which has the advantages of precise guidance, smooth sliding, adjustable height, and reliable limiting, thereby solving the problems of jamming, shaking, or even derailment of doors and windows during use.

[0005] (II) Technical Solution

[0006] To achieve the advantages of precise guidance, smooth sliding, adjustable height, and reliable positioning, the specific technical solution adopted by this utility model is as follows: It includes a bottom profile, a guide block, a pulley assembly, and limiting wheels. The bottom profile is provided with single and double glass mounting cavities, pulley mounting grooves, and guide walls. The single and double glass mounting cavities are vertically located at the top of the bottom profile. The pulley mounting grooves are located below the single and double glass mounting cavities. Two sets of guide walls are respectively located on both sides of the pulley mounting grooves. The guide block is slidably connected to the side ends of the guide walls of the first and second bottom profiles. The pulley assembly is located in the pulley mounting grooves. The two sets of limiting wheels are located away from the guide block and are respectively located on the outer side of the other guide wall.

[0007] Furthermore, the inner side of the single and double glass mounting cavity is provided with a breakable rib.

[0008] Furthermore, the guide block includes an upper adjusting plate, a bottom positioning plate, guide wheels, and an adjusting groove. The upper adjusting plate is provided with a locking hole, and the bottom positioning plate is provided with a protrusion on its upper side. The upper adjusting plate is adjusted within the protrusion, and the adjusting groove is provided on the surface of the bottom positioning plate. Two sets of guide wheels are respectively located at the side ends of the guide walls of the bottom profiles of the first and second panels. The surfaces of the upper adjusting plate and the bottom positioning plate are provided with scales.

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

[0010] Furthermore, the limiting wheel is provided in one or two sets, and the two sets of limiting wheels slide longitudinally on the side of the guide wall. The limiting wheel and the guide wheel are set at the same horizontal height. The bottom of the limiting wheel is connected to a fixing plate, and the fixing plate is fastened to the ground by screws.

[0011] Furthermore, the pulley block is a height-adjustable pulley structure.

[0012] Furthermore, the upper adjustment plate may also be provided with limiting blocks on the front and rear sides, and the limiting blocks are engaged with the bottom positioning plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a limiting mechanism for sliding doors, which has the following advantages:

[0015] The guide walls on both sides of the bottom profile and the guide wheels on the guide blocks that fit closely with them provide precise guidance for the doors and windows, ensuring that the doors and windows always move in a straight line along the predetermined trajectory during the opening and closing process. This effectively avoids instability such as door and window deviation, shaking, or even derailment, greatly improving the safety and stability of the doors and windows. At the same time, it also reduces the noise caused by door and window shaking and improves the comfort of the indoor environment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the limiting wheel 4 in this utility model;

[0019] Figure 3 This is the second schematic diagram of the structure of the limiting wheel 4 in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the guide block 2 of this utility model;

[0021] Figure 5 It corresponds Figure 4 Top view;

[0022] Figure 6 This is the second structural schematic diagram of the guide block 2 in this utility model;

[0023] Figure 7 Yes, it corresponds. Figure 6 Top view;

[0024] In the figure: bottom profile 1, guide block 2, pulley block 3, limit wheel 4, scale 6, single and double glass mounting cavity 11, pulley mounting groove 12, guide wall 13, breakable rib 111, upper adjustment plate 21, bottom positioning plate 22, guide wheel 23, adjustment groove 24, locking hole 211, limit block 212, protrusion 221, fixing plate 41. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used 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 skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a limiting mechanism for a sliding door is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-7 As shown, a limiting mechanism for a sliding door according to an embodiment of this utility model includes a bottom profile 1, a guide block 2, a pulley assembly 3, and limiting wheels 4. The bottom profile 1 is provided with a single / double glass mounting cavity 11, a pulley mounting groove 12, and a guide wall 13. The single / double glass mounting cavity 11 is vertically located at the top of the bottom profile 1, facilitating the installation of single or double-layer glass to meet different heat insulation and sound insulation requirements. The pulley mounting groove 12 is located below the single / double glass mounting cavity 11. Two sets of guide walls 13 are respectively located on both sides of the pulley mounting groove 12. The guide block 2 is slidably connected to the side ends of the guide walls 13 of the first and second bottom profiles 1. The pulley assembly 3 is located inside the pulley mounting groove 12. The two sets of limiting wheels 4 are located away from the guide block 2 and correspond to the outer side of the other guide wall 13. This mechanism guides the sliding direction of the door and window, ensuring that the door and window maintain stable linear movement during opening and closing, reducing shaking and deviation.

[0028] In one embodiment, the inner side of the single / double glass mounting cavity 11 is provided with a breakable rib 111. During glass installation, some of the ribs can be broken off according to the actual situation to accommodate the installation of glass of different thicknesses, thereby improving versatility and installation convenience.

[0029] In one embodiment, the guide block 2 includes an upper adjusting plate 21, a bottom positioning plate 22, guide wheels 23, and an adjusting groove 24. The upper adjusting plate 21 has a locking hole 211, and the bottom positioning plate 22 has a protrusion 221 on its upper surface. The upper adjusting plate 21 is adjusted within the protrusion 221, allowing for relative vertical position adjustment to accommodate different installation height requirements. The adjusting groove 24 is located on the surface of the bottom positioning plate 22 and is used to adjust the horizontal position of the guide block 2 in conjunction with fasteners. Two sets of guide wheels 23 correspond to the side ends of the guide walls 13 of the bottom profiles 1 of the first and second doors, respectively, ensuring that the doors and windows always move along the guide walls 13 during sliding, preventing deviation. The surfaces of the upper adjusting plate 21 and the bottom positioning plate 22 are provided with scales 6, facilitating precise adjustment of the guide block 2's position during installation and debugging, improving installation efficiency and accuracy.

[0030] In one embodiment, a fastener is provided inside the locking hole 211, and the fastener passes through the locking hole 211 and is fastened to the ground with the adjusting groove 24. This ensures that the guide block 2 can be stably fixed after being adjusted to the appropriate position, preventing it from shifting during use.

[0031] In one embodiment, the limiting wheels 4 are provided in one or two sets. Two sets of limiting wheels 4 slide longitudinally along the side of the guide wall 13 to limit the horizontal movement range of the door and window, preventing excessive offset or derailment during opening and closing, and ensuring the safety of the door and window. The limiting wheels 4 and guide wheels 23 are set at the same horizontal level, and their positions can be adjusted according to actual needs. This ensures that the limiting wheels 4 and guide wheels 23 can work simultaneously during the sliding of the door and window, jointly maintaining the stable sliding of the door and window to adapt to the limiting requirements of different specifications of doors and windows. A fixing plate 41 is connected to the bottom of the limiting wheels 4, and the fixing plate 41 is fastened to the ground with screws. This ensures the secure installation of the limiting wheels 4, enabling them to effectively perform their limiting function.

[0032] In one embodiment, the pulley block 3 is a height-adjustable pulley structure.

[0033] In one embodiment, the upper adjustment plate 21 may also be provided with limiting blocks 212 on the front and rear sides, and the limiting blocks 212 are snapped onto the bottom positioning plate 22.

[0034] Working principle: First, select a suitable bottom profile 1 according to the size of the door / window and the type of glass, and install it in the predetermined position at the bottom of the door / window. For single and double glass installation cavities 11, breakable reinforcing bars 111 are appropriately broken according to the thickness of the glass, and then the glass is installed in the cavity, ensuring a firm installation. Next, install the guide block 2, place the bottom positioning plate 22 in the appropriate position, so that the guide wheel 23 is in close contact with the guide wall 13, and then adjust the position of the upper adjusting plate 21 within the protrusion 221 of the bottom positioning plate 22, and precisely adjust the position of the adjusting groove 24 using the scale 6. Finally, fix the upper adjusting plate 21 to the ground with fasteners, while ensuring that the limiting block 212 and the bottom positioning plate 22 are well engaged. Install the pulley block 3 in the pulley mounting groove 12, and adjust the height of the pulley according to the actual situation of the door and window so that it can smoothly support the sliding of the door and window. Finally, install the limit wheel 4, fix the fixing plate 41 to the ground with screws, and adjust the position of the limit wheel 4 so that it works in conjunction with the guide wheel 23 to limit the range of movement of the door and window in the horizontal direction.

[0035] 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.

[0036] 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 limiting mechanism for a sliding door, comprising a bottom profile (1), a guide block (2), a pulley block (3), and a limiting wheel (4), characterized in that: The bottom profile (1) is provided with a single and double glass mounting cavity (11), a pulley mounting groove (12), and a guide wall (13). The single and double glass mounting cavity (11) is vertically located at the top of the bottom profile (1). The pulley mounting groove (12) is located below the single and double glass mounting cavity (11). Two sets of guide walls (13) are respectively located on both sides of the pulley mounting groove (12). The guide block (2) is slidably connected to the side end of the guide wall (13) of the first and second bottom profiles (1). The pulley group (3) is located in the pulley mounting groove (12). Two sets of limiting wheels (4) are located away from the guide block (2) and are respectively located on the outside of the other guide wall (13).

2. The limiting mechanism for a sliding door according to claim 1, characterized in that: The inner side of the single and double glass mounting cavity (11) is provided with a breakable rib (111).

3. The limiting mechanism for a sliding door according to claim 1, characterized in that: The guide block (2) includes an upper adjustment plate (21), a bottom positioning plate (22), guide wheels (23) and an adjustment groove (24). The upper adjustment plate (21) is provided with a locking hole (211), and the bottom positioning plate (22) is provided with a protrusion (221) above it. The upper adjustment plate (21) is adjusted in the protrusion (221). The adjustment groove (24) is provided on the surface of the bottom positioning plate (22). Two sets of guide wheels (23) are respectively located on the side of the guide wall (13) of the bottom profile (1) of the first and second panels. The surfaces of the upper adjustment plate (21) and the bottom positioning plate (22) are provided with a scale (6).

4. The limiting mechanism for a sliding door according to claim 3, characterized in that: The locking hole (211) is provided with a fastener, which passes through the locking hole (211) and is fastened to the ground by the adjusting groove (24).

5. The limiting mechanism for a sliding door according to claim 1, characterized in that: The limiting wheel (4) is provided in one or two sets. The two sets of limiting wheels (4) slide longitudinally on the side of the guide wall (13). The limiting wheel (4) and the guide wheel (23) are set at the same horizontal level. The bottom of the limiting wheel (4) is connected to a fixing plate (41), which is fastened to the ground by screws.

6. The limiting mechanism for a sliding door according to claim 1, characterized in that: The pulley block (3) is a height-adjustable pulley structure.

7. The limiting mechanism for a sliding door according to claim 3, characterized in that: The upper adjustment plate (21) may also be provided with a limiting block (212) on the front and rear sides, and the limiting block (212) is snapped onto the bottom positioning plate (22).

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