Sliding door mechanism

By using wall-mounted pulley components and floor-mounted rollers, the sliding door mechanism solves the problems of cleaning difficulties and safety hazards caused by traditional sliding doors relying on ground tracks, achieving stable, quiet, and safe sliding of trackless sliding doors.

CN223562702UActive Publication Date: 2025-11-18QINGDAO DEER DOORS & WINDOW TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423131083.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-11-18
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Traditional sliding doors rely on floor tracks, which makes cleaning difficult and poses safety hazards.

Method used

The door frame is designed with wall-mounted rollers and ground wheels. The wall-mounted rollers slide along the wall, while the auxiliary rollers and ground wheels provide support and guidance. Nylon rollers reduce wear and noise, and positioning rollers ensure stability.

Benefits of technology

It enables the opening and closing of sliding doors without the need for ground tracks, improving the convenience and safety of cleaning and reducing shaking and noise.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223562702U_ABST
    Figure CN223562702U_ABST
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Abstract

The utility model relates to a sliding door mechanism, and belongs to the technical field of building structures. Comprising a door frame, a wall-mounted pulley assembly is arranged at the top of the door frame, a first sliding groove corresponding to the wall-mounted pulley assembly is formed in the top of the door frame, the wall-mounted pulley assembly is embedded in the first sliding groove, the door frame is installed on a wall through the wall-mounted pulley assembly and slides along the wall, and a plurality of land wheels are embedded in the bottom end of the door frame; the wall-hung pulley assembly comprises an L-shaped connecting plate, a homocentric-square-shaped connecting plate, a plurality of main pulleys and a plurality of auxiliary pulleys, the main pulleys are embedded into the first sliding grooves, the L-shaped connecting plate comprises a horizontal plate and a vertical plate, the homocentric-square-shaped connecting plate is connected to the horizontal plate in a sleeving mode, the main pulleys are installed on the horizontal plate through the homocentric-square-shaped connecting plate, and the vertical plate is fixedly connected with a wall; the auxiliary pulley is installed on the side, close to the door frame, of the vertical plate, a second sliding groove corresponding to the auxiliary pulley is formed in the door frame, and the auxiliary pulley is embedded into the second sliding groove. According to the utility model, the installation of a track on the ground is avoided, the difficulty of cleaning is reduced, and the safety is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a sliding door mechanism and belongs to the technical field of building structures. BACKGROUND

[0002] A sliding door is a common type of door that opens and closes by sliding along a track, rather than rotating around a hinge like a traditional swing door. Sliding doors are often used to save space because they do not require additional space to open like swing doors. The design of this door makes it not occupy the space of the other side of the door when it is opened, so it is very suitable for areas with limited space.

[0003] However, traditional sliding doors usually rely on visible track systems, especially tracks on the ground, which are easy to accumulate dirt and are very difficult to clean. In addition, the ground track is also a safety hazard for children and the elderly, and is prone to falling.

[0004] Therefore, a new sliding door mechanism is needed that can achieve the opening and closing of the sliding door without installing tracks on the ground. SUMMARY

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a sliding door mechanism that avoids installing tracks on the ground, reduces the difficulty of cleaning, and improves safety.

[0006] The sliding door mechanism comprises a door frame and a glass door, the glass door is embedded in the door frame, a wall-mounted pulley assembly is arranged at the top of the door frame, a first sliding groove is arranged at the top of the door frame corresponding to the wall-mounted pulley assembly, the wall-mounted pulley assembly is embedded in the first sliding groove, the door frame is installed on the wall body through the wall-mounted pulley assembly and slides along the wall, and a plurality of ground wheels are embedded in the bottom end of the door frame.

[0007] The wall-mounted pulley assembly comprises an L-shaped connecting plate, a back-to-back connecting plate, a plurality of main pulleys and a plurality of auxiliary pulleys, the main pulleys are embedded in the first sliding groove, the L-shaped connecting plate comprises a horizontal plate and a vertical plate, the back-to-back connecting plate is sleeved on the horizontal plate, the main pulleys are installed on the horizontal plate through the back-to-back connecting plate, the vertical plate is fixedly connected with the wall body, the auxiliary pulleys are installed on the side close to the door frame of the vertical plate, a second sliding groove is arranged on the door frame corresponding to the auxiliary pulleys, and the auxiliary pulleys are embedded in the second sliding groove.

[0008] When the sliding door is pushed, the main pulleys rotate in the first sliding groove, the auxiliary pulleys rotate in the second sliding groove, and the ground wheels roll on the ground, so that the door frame is smoothly moved by the main pulleys, the auxiliary pulleys and the ground wheels.

[0009] The wall body is provided with a plurality of positioning pulleys which can be embedded in the second sliding groove. The embedding of the positioning pulleys in the sliding groove can ensure the stability of the door frame during sliding and reduce shaking. Through the cooperation of the positioning pulleys and the sliding groove, the risk of derailment of the door frame can be effectively reduced, and smooth sliding of the sliding door can be ensured.

[0010] The materials of the ground wheels, the main pulley, the auxiliary pulley and the positioning pulley are all nylon. Nylon has excellent wear resistance and can maintain stability for a long time under high-speed rotation and high friction, thereby prolonging the service life of the pulley. In addition, the nylon pulley has the characteristics of self-lubrication, which reduces the need for additional lubrication, reduces noise, and eliminates wear.

[0011] The number of auxiliary pulleys is two. Two auxiliary pulleys can provide more stable support to ensure that the door frame shakes less during sliding and improve overall stability. Two auxiliary pulleys can better guide the door frame to slide along the predetermined track, reducing the possibility of deviating from the track.

[0012] The number of ground wheels is two, which are respectively arranged at the two sides of the bottom end of the door frame. Two ground wheels are respectively arranged at the two sides of the bottom end of the door frame, which can provide balanced support to ensure that the door frame remains horizontal during sliding and reduces tilting or imbalance.

[0013] The damping pad is arranged between the H-shaped connecting plate and the horizontal plate. The damping pad can reduce the vibration and noise of the sliding door during sliding.

[0014] The sealing strip is arranged between the vertical plate and the wall body. The sealing strip can improve the sealing between the door frame and the wall body to prevent air and moisture from leaking.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] By arranging the wall-hung pulley assembly and the ground wheel, the sliding door can be opened and closed without the need for a ground track. By arranging the main pulley and the first sliding groove, the sliding door can move along the wall. The design of the auxiliary pulley embedded in the second sliding groove provides additional support and guidance, enhances the stability of the door frame during sliding, and reduces shaking. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the wall body of the embodiment 1 of the present application;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the embodiment 1 of the present application;

[0019] Figure 3 is Figure 2 an enlarged schematic diagram of position A in FIG. 4;

[0020] Figure 4 yes Figure 2 Enlarged diagram of point B in the middle.

[0021] In the diagram: 1. Wall; 2. Ground wheel; 3. Door frame; 4. Wall-mounted pulley assembly; 41. Vertical plate; 42. Horizontal plate; 43. Bolt; 44. U-shaped connecting plate; 45. Main pulley; 46. Auxiliary pulley; 5. Second slide groove; 6. First slide groove; 7. Positioning pulley. Detailed Implementation

[0022] The present invention will be further described below with reference to embodiments:

[0023] Example 1

[0024] like Figures 1-4 As shown, the sliding door mechanism of this utility model includes a door frame 3 and a glass door. The glass door is embedded in the door frame 3. A wall-mounted pulley assembly 4 is provided at the top of the door frame 3. A first sliding groove 6 is provided at the top of the door frame 3 corresponding to the wall-mounted pulley assembly 4. Stops are provided at both ends of the first sliding groove 6 to prevent the main pulley 45 from passing through the first sliding groove 6. The wall-mounted pulley assembly 4 is embedded in the first sliding groove 6. The door frame 3 is installed on the wall 1 through the wall-mounted pulley assembly 4 and slides along the wall. Several ground wheels 2 are embedded in the bottom of the door frame 3.

[0025] The wall-mounted pulley assembly 4 includes an L-shaped connecting plate, a U-shaped connecting plate 44, several main pulleys 45, and several auxiliary pulleys 46. The main pulleys 45 are embedded in the first sliding groove 6. The L-shaped connecting plate includes a horizontal plate 42 and a vertical plate 41, which are integrated to reduce connection points and lower safety hazards caused by improper connections. The U-shaped connecting plate 44 is fitted onto the horizontal plate 42 and fixed to the horizontal plate 42 with bolts 43. The top of the main pulleys 45 is welded to the U-shaped connecting plate 44. The vertical plate 41 is fixed to the wall 1 with bolts 43. The auxiliary pulleys 46 are installed on the side of the vertical plate 41 closest to the door frame 3 and are welded to the vertical plate 41. A second sliding groove 5 is provided on the door frame 3 corresponding to the auxiliary pulleys 46, with both ends of the second sliding groove 5 penetrating the door frame 3. The auxiliary pulleys 46 are embedded in the second sliding groove 5. Figure 3 As shown.

[0026] Two positioning pulleys 7 are installed on the wall 1. The positioning pulleys 7 can be embedded in the second sliding groove 5, such as... Figure 4 .

[0027] The ground wheel 2, main pulley 45, auxiliary pulley 46 and positioning pulley 7 are all made of nylon.

[0028] There are two auxiliary pulleys 46.

[0029] There are two ground wheels 2, which are placed on both sides of the bottom end of the door frame 3.

[0030] A shock pad is arranged between the back-shaped connecting plate 44 and the horizontal plate 42.

[0031] A sealing strip is arranged between the vertical plate 41 and the wall body 1.

[0032] Working process: during installation, firstly, the ground wheel 2 is installed at the bottom end of the door frame 3, then the L-shaped connecting plate is installed according to the height of the door frame 3, then the top of the main pulley 45 is welded with the back-shaped connecting plate 44, and the welded combination is installed in the first sliding groove 6 on the door frame 3, then the door frame 3 is erected, the back-shaped connecting plate 44 is sleeved on the outer periphery of the horizontal plate 42, the back-shaped connecting plate 44 is fixed with the horizontal plate 42 through the bolt 43, the auxiliary pulley 46 is embedded in the second sliding groove 5 and welded with the vertical plate 41, and finally the positioning pulley 7 is installed.

[0033] In the utility model, the description of the direction and relative position relation of the structure, such as the description of front, back, left, right, up and down, does not constitute the limitation of the utility model, and is only convenient for description.

Claims

1. A sliding door mechanism, characterized in that The door frame (3) and the glass door are embedded in the door frame (3), the hanging wall pulley assembly (4) is arranged on the top of the door frame (3), the first sliding groove (6) is arranged on the top of the door frame (3) corresponding to the hanging wall pulley assembly (4), the hanging wall pulley assembly (4) is embedded in the first sliding groove (6), the door frame (3) is installed on the wall (1) through the hanging wall pulley assembly (4) and slides along the wall, and the ground wheels (2) are embedded in the bottom end of the door frame (3). The hanging wall pulley assembly (4) comprises an L-shaped connecting plate, a back-shaped connecting plate (44), a plurality of main pulleys (45) and a plurality of auxiliary pulleys (46), the main pulleys (45) are embedded in the first sliding groove (6), the L-shaped connecting plate comprises a horizontal plate (42) and a vertical plate (41), the back-shaped connecting plate (44) is sleeved on the horizontal plate (42), the main pulleys (45) are installed on the horizontal plate (42) through the back-shaped connecting plate (44), the vertical plate (41) is fixedly connected with the wall (1), the auxiliary pulleys (46) are installed on the side close to the door frame (3) of the vertical plate (41), the second sliding groove (5) is arranged on the door frame (3) corresponding to the auxiliary pulleys (46), and the auxiliary pulleys (46) are embedded in the second sliding groove (5).

2. A sliding door mechanism according to claim 1, characterised in that A plurality of positioning pulleys (7) are installed on the wall (1), and the positioning pulleys (7) can be embedded in the second sliding groove (5).

3. A sliding door mechanism according to claim 2, wherein The materials of the ground wheels (2), the main pulleys (45), the auxiliary pulleys (46) and the positioning pulleys (7) are nylon.

4. A sliding door mechanism according to claim 3, wherein The number of the auxiliary pulleys (46) is two.

5. A sliding door mechanism according to claim 4, wherein The number of the ground wheels (2) is two, and the ground wheels (2) are arranged on both sides of the bottom end of the door frame (3).

6. A sliding door mechanism according to any one of claims 1-5, characterized in that, A damping pad is arranged between the back-shaped connecting plate (44) and the horizontal plate (42).

7. A sliding door mechanism according to claim 6, wherein A sealing strip is arranged between the vertical plate (41) and the wall (1).