A kitchen sliding door with good sealing effect

By incorporating a combination of a top rod, air box, air pipe, and airbag into the kitchen sliding door, the problem of poor sealing performance of the kitchen sliding door is solved, achieving a good seal between the sliding door and the door frame, thus improving sealing performance and service life.

CN224282375UActive Publication Date: 2026-05-26SHANGHAI JINGHONG STAINLESS STEEL KITCHEN UTENSIL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JINGHONG STAINLESS STEEL KITCHEN UTENSIL CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-26

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    Figure CN224282375U_ABST
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Abstract

This utility model relates to the field of sliding door technology and discloses a kitchen sliding door with good sealing effect. It includes an upper hanging rail, a sliding door at the bottom end of the upper hanging rail, a hanging rail pulley fixedly installed on the top tube of the sliding door, a support rod fixedly installed on the top of the sliding door, an air box fixedly installed on the top of the support rod, a movable plate slidably connected to the inner cavity of the air box, a top rod fixedly installed on the surface of the movable plate, and a spring fixedly installed on the other end of the movable plate. By setting the top rod, when the sliding door slides closed, the top rod first contacts the door frame. At this time, the top rod is obstructed by the door frame and cannot continue to move, but the sliding door can still continue to move. Therefore, the top rod will drive the movable plate to slide relative to the air box, thereby squeezing the air in the air box into the air pipe, and then sending it into the air bladder through the air pipe. After the sliding door is completely closed, the air bladder inflates and fills the gap between the sliding door and the door frame, improving the sealing performance.
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Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, and more specifically, to a kitchen sliding door with good sealing effect. Background Technology

[0002] Kitchen sliding doors typically consist of two sliding doors. Due to their aesthetic appeal and ease of use, sliding doors are widely popular. However, compared to traditional hinged doors, the sealing performance of sliding doors is inferior. The sliding motion creates gaps between the two doors, the door frame, the upper track, and the floor. However, for the gaps between the two doors, the floor, and the upper cabinets, a matching sealing strip can be applied to the door frame during installation to cover these gaps. This will allow for a relatively good seal when both doors are closed. A good seal can be achieved because the sliding door's sliding operation does not compress or apply pressure to the sealing strips in these areas. However, for the parts where the sliding door contacts the door frame, even though existing technologies often use aligned sealing strips for sealing, if the sealing strips are tightly fitted to ensure the normal sliding of the door, the sliding door will apply pressure to the sealing strips when opening and closing. Over time, the sealing strips may fall off. Therefore, felt sealing strips are often used to seal this area, but the sealing effect here is poor. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a kitchen sliding door with good sealing effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a kitchen sliding door with good sealing effect, including an upper hanging rail, a sliding door at the bottom end of the upper hanging rail, a hanging rail pulley fixedly installed on the top tube of the sliding door, a support rod fixedly installed on the top end of the sliding door, an air box fixedly installed on the top end of the support rod, a movable plate slidably connected to the inner cavity of the air box, a top rod fixedly installed on the surface of the movable plate, a spring fixedly installed on the other end of the movable plate, an air pipe fixedly installed at the end of the air box near the center of the upper hanging rail, and an air bladder fixedly installed at the end of the sliding door away from the center of the upper hanging rail.

[0005] As a preferred embodiment of this utility model, one end of the top rod away from the center of the upper hanging rail passes through and extends to the outside of the air box, and the end of the top rod extending out of the air box is located on the outside of the sliding door.

[0006] As a preferred embodiment of this utility model, the bottom end of the air tube is located below the air box, and the end of the air tube located in the air box away from the center of the upper rail is located above the rail pulley and does not contact the rail pulley.

[0007] As a preferred embodiment of this utility model, the hanging rail pulley is slidably connected to the upper hanging rail, and there are two sliding doors. Rubber sealing strips are affixed to the connection between the two sliding doors and to the upper and lower ends of the sliding doors.

[0008] As a preferred embodiment of this utility model, a placement frame is fixedly installed at the end of the sliding door away from the center of the upper rail, and the airbag is attached inside the placement frame.

[0009] As a preferred embodiment of this utility model, a connecting shaft is fixedly installed at the end of the sliding door away from the center of the upper rail, and a handle is rotatably connected to the middle of the connecting shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting a top rod, will first contact the door frame when the sliding door is closed. At this time, the top rod is blocked by the door frame and cannot continue to move, but the sliding door can still continue to move. Therefore, the top rod will drive the moving plate to slide relative to each other in the air box, thereby squeezing the air in the air box into the air pipe, and sending it into the airbag through the air pipe. After the sliding door is completely closed, the airbag inflates and fills the gap between the sliding door and the door frame, improving the sealing performance.

[0012] 2. This utility model adjusts the fixed connection between the handle and the sliding door to a rotating connection using a connecting shaft. When the sliding door needs to be cleaned, the handle can be rotated to remove it from the sliding door, avoiding the situation in the prior art where the handle blocks the area of ​​the sliding door, making cleaning inconvenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;

[0016] Figure 4 This is a schematic diagram of the connection structure between the sliding door and the hanging rail pulley of this utility model;

[0017] Figure 5 This utility model Figure 4 Enlarged view of point C in the middle;

[0018] Figure 6 This utility model Figure 4 Enlarged diagram of point D in the middle.

[0019] In the diagram: 1. Upper hanging rail; 2. Sliding door; 3. Hanging rail pulley; 4. Support rod; 5. Air box; 6. Moving plate; 7. Spring; 8. Air pipe; 9. Airbag; 10. Top rod; 11. Placement frame; 12. Connecting shaft; 13. Handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 6 As shown, this utility model provides a kitchen sliding door with good sealing effect, including an upper rail 1, a sliding door 2 at the bottom of the upper rail 1, a rail pulley 3 fixedly installed on the top tube of the sliding door 2, a support rod 4 fixedly installed on the top of the sliding door 2, an air box 5 fixedly installed on the top of the support rod 4, a movable plate 6 slidably connected to the inner cavity of the air box 5, a top rod 10 fixedly installed on the surface of the movable plate 6, a spring 7 fixedly installed on the other end of the movable plate 6, an air pipe 8 fixedly installed on the end of the air box 5 near the center of the upper rail 1, and an air bladder 9 fixedly installed on the end of the sliding door 2 away from the center of the upper rail 1.

[0022] By setting the top rod 10, when the sliding door 2 slides closed, the top rod 10 will first contact the door frame. At this time, the top rod 10 is blocked by the door frame and cannot continue to move, but the sliding door 2 can still continue to move. Therefore, the top rod 10 will drive the moving plate 6 to slide relative to the air box 5, thereby squeezing the air in the air box 5 into the air pipe 8, and sending it into the airbag 9 through the air pipe 8. After the sliding door 2 is completely closed, the airbag 9 inflates and fills the gap between the sliding door 2 and the door frame. When the door is opened, the moving plate 6 will draw the gas out of the airbag 9, so it will not affect the normal opening and closing of the sliding door 2 and improve the sealing performance.

[0023] Among them, the end of the top rod 10 away from the center of the upper hanging rail 1 passes through and extends to the outside of the air box 5, and the end of the top rod 10 extending out of the air box 5 is located on the outside of the sliding door 2.

[0024] When the sliding door 2 is closed, as the sliding door 2 moves toward the door frame, the top rod 10 will first contact the door frame, thereby causing the moving plate 6 to slide relative to the air box 5.

[0025] The bottom end of the air tube 8 is located below the air box 5, and the end of the air tube 8 located in the air box 5 away from the center of the upper hanging rail 1 is located above the hanging rail pulley 3 and does not contact the hanging rail pulley 3.

[0026] To prevent the air pipe 8 from being squeezed when the sliding door 2 moves, the stable operation of the device is ensured.

[0027] Among them, the hanging rail pulley 3 is slidably connected in the upper hanging rail 1, there are two sliding doors 2, and rubber sealing strips are pasted at the connection between the two sliding doors 2 and at the upper and lower ends of the sliding doors 2.

[0028] The sliding door 2 can slide below the upper rail 1 via the hanging rail pulley 3, thereby opening and closing. Both the hanging rail pulley 3 and the upper rail 1 are equipped with magnetic blocks. When the sliding door 2 is completely closed, the magnetic blocks on both attract each other, positioning the sliding door 2 and ensuring that the sliding door 2 will not open together after closing. The sealing strip set on the sliding door 2 is used to seal the contact points between the sliding door 2 and the upper rail 1, the ground, and the two sliding doors 2.

[0029] Among them, the sliding door 2 is fixedly installed with a placement frame 11 at the end away from the center of the upper rail 1, and the airbag 9 is pasted inside the placement frame 11.

[0030] The airbag 9 is supported and protected by the placement frame 11. After the sliding door 2 is opened, the airbag 9 retracts into the placement frame 11 to store the airbag 9 and maintain its protection and aesthetics.

[0031] Among them, a connecting shaft 12 is fixedly installed at the end of the sliding door 2 away from the center of the upper rail 1, and a handle 13 is rotatably connected to the middle of the connecting shaft 12.

[0032] By adjusting the fixed connection between the handle 13 and the sliding door 2 to a rotating connection using the connecting shaft 12, when the sliding door 2 needs to be cleaned, the handle 13 can be rotated to move away from the sliding door 2, thus avoiding the situation in the prior art where the handle 13 blocks the area of ​​the sliding door 2, making cleaning inconvenient.

[0033] Working principle and usage process of this utility model:

[0034] When closing the sliding door 2, push the sliding door 2 so that the hanging rail pulley 3 slides in the upper hanging rail 1. When the top rod 10 contacts the door frame, the door frame obstructs the movement of the top rod 10, but the sliding door 2 can still continue to move. At this time, the top rod 10 and the moving plate 6 stop moving, so that the moving plate 6 squeezes the air in the air box 5 into the air pipe 8, and enters the air bag 9 through the air pipe 8 to inflate the air bag 9. When the sliding door 2 is completely closed, the magnetic blocks between the hanging rail pulley 3 and the upper hanging rail 1 attract each other and fix the position of the sliding door 2. At this time, the air bag 9 expands to fill the gap between the door frame and the sliding door 2.

[0035] When the sliding door 2 is opened, the spring 7 is in a compressed state. When the sliding door 2 moves, the elastic force of the spring 7 will apply pressure to the top rod 10. At this time, the moving plate 6 will draw the air out of the airbag 9, causing the airbag 9 to contract and return to its original position.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kitchen sliding door with good sealing effect, including an upper track (1), characterized in that: The bottom end of the upper hanging rail (1) is provided with a sliding door (2). The top tube of the sliding door (2) is fixedly installed with a hanging rail pulley (3). The top end of the sliding door (2) is fixedly installed with a support rod (4). The top end of the support rod (4) is fixedly installed with an air box (5). The inner cavity of the air box (5) is slidably connected with a moving plate (6). The surface of the moving plate (6) is fixedly installed with a top rod (10). The other end of the moving plate (6) is fixedly installed with a spring (7). The end of the air box (5) near the center of the upper hanging rail (1) is fixedly installed with an air pipe (8). The end of the sliding door (2) away from the center of the upper hanging rail (1) is fixedly installed with an airbag (9).

2. The kitchen sliding door with good sealing effect according to claim 1, characterized in that: The top rod (10) extends from the center of the upper rail (1) through and to the outside of the air box (5), and the end of the top rod (10) extending out of the air box (5) is located outside the sliding door (2).

3. A kitchen sliding door with good sealing effect according to claim 1, characterized in that: The bottom end of the air tube (8) is located below the air box (5), and the end of the air tube (8) located away from the center of the upper rail (1) of the air box (5) is located above the rail pulley (3) and does not contact the rail pulley (3).

4. A kitchen sliding door with good sealing effect according to claim 1, characterized in that: The hanging rail pulley (3) is slidably connected in the upper hanging rail (1). There are two sliding doors (2). Rubber sealing strips are pasted at the connection between the two sliding doors (2) and at the upper and lower ends of the sliding doors (2).

5. A kitchen sliding door with good sealing effect according to claim 1, characterized in that: The sliding door (2) is fixedly installed with a placement frame (11) at one end away from the center of the upper rail (1), and the airbag (9) is pasted inside the placement frame (11).

6. A kitchen sliding door with good sealing effect according to claim 1, characterized in that: A connecting shaft (12) is fixedly installed at one end of the sliding door (2) away from the center of the upper rail (1), and a handle (13) is rotatably connected to the middle of the connecting shaft (12).