A dynamic sealing device suitable for lifting a sliding door

Abstract

The application relates to a dynamic sealing device suitable for lifting a sliding door, belonging to the technical field of sliding door sealing, which comprises a base installed on the upper side of a sliding door leaf, a movable piece installed on the base, a sealing cotton assembly installed on the movable piece and used for being attached to a door frame to form a sealing state, a sealing elastic assembly installed on the movable piece and used for always attaching the sealing cotton assembly to the door frame, and a cover installed on the base and used for covering the movable piece. The application has the beneficial effect of improving the sealing effect of the door leaf and the door frame under the condition of ensuring the sliding smoothness.

Description

Technical Field

[0001] This application relates to the technical field of sliding door sealing, and in particular to a dynamic sealing device suitable for lifting sliding doors. Background Technology

[0002] Sliding doors, especially lift-type sliding doors, are widely used in daily life due to their significant advantages such as not occupying indoor space when open and excellent transparency. Their unique working principle lies in this: when opening, the door leaf is lifted upwards, thus disengaging from the track and allowing for easy sliding; when closing, the door leaf descends and falls back into the track, achieving a sealing effect. This ingenious design not only effectively reduces the sliding resistance common in ordinary sliding doors but also significantly reduces track wear and extends service life.

[0003] Improving the sealing performance of sliding doors largely depends on the precise adjustment of the pulley system. Ensuring the door leaf remains parallel to the frame guarantees a basic seal on the sides. Therefore, the design of the sealing structure for the gap between the door leaf and the frame directly affects the overall sealing effect of the entire door.

[0004] Reference Figure 1 In existing technologies, the sealing structure design for this gap is often quite simple. Most solutions simply involve installing a device on the upper side of the door leaf, consisting of a rubber sheet 001 and a cover base 002, fixedly installed through a positioning hole 003. Although the rubber sheet itself has a certain sealing capability, it generates significant pushing and pulling resistance when in contact with the door frame during the pushing and pulling process, accompanied by noise from friction, which greatly affects the smoothness of the door leaf's pushing and pulling. To alleviate this problem and ensure smooth pushing and pulling without excessive obstruction, existing designs typically leave a gap of more than 10mm between the cover base 002 and the door frame. However, while such a gap improves smoothness, it also directly results in the inability to form an effective tight seal between the door leaf and the door frame, significantly reducing the overall sealing effect. Utility Model Content

[0005] To improve the sealing effect between the door leaf and the door frame while ensuring smooth sliding, this application provides a dynamic sealing device suitable for lifting sliding doors, adopting the following technical solution: A dynamic sealing device suitable for lifting sliding doors, comprising: The base is installed on the upper side of the sliding door. The movable component is installed on the base; The sealing cotton assembly is installed on the movable part and is used to fit against the door frame to form a sealed state. A sealing elastic component, installed on the movable part, is used to ensure that the sealing cotton component is always in contact with the door frame; A cover, installed on the base, is used to cover the movable part.

[0006] By adopting the above technical solution, when the sliding door is lowered and closed, the sealing elastic component releases its elasticity, ensuring that the sealing cotton component remains in close contact with the door frame to form a seal. When the door is raised, the sealing elastic component is compressed. Due to the low friction of the sealing cotton component, the sliding door will not lag, thus not affecting the smoothness of the sliding motion. Because the sealing cotton component and the sealing elastic component achieve dynamic self-adaptation of the seal as the sliding door moves, the smoothness of the sliding motion is ensured, and the sealing effect between the door and the door frame is improved.

[0007] Preferably, the sealing cotton assembly includes: The first sealing cotton, including GR cotton or PU cotton, is installed on the movable part; The second sealing cotton, installed on the first sealing cotton, includes absorbent sealing cotton.

[0008] By adopting the above technical solution, the adsorption sealing cotton has a low friction effect and a certain compression ratio, and directly contacts the door frame; GR cotton or PU cotton has good compressibility and sealing performance; the two sealing cottons work together to achieve a balance between low friction sliding and high sealing performance.

[0009] Preferably, the sealing elastic component includes: Two fixed support pillars are provided, both of which are fixedly connected to the movable component; A spring is provided corresponding to the fixed support post, and one end of the spring is sleeved on the corresponding fixed support post. The base has a sliding groove and two positioning grooves. The movable part is installed on the base through the sliding groove; the other end of the spring is inserted into the corresponding positioning groove.

[0010] By adopting the above technical solution, the spring is fixed to the base through the positioning groove, ensuring that the elastic force can be continuously transmitted to the moving parts, providing a stable power source for the dynamic sealing of the sealing cotton assembly, and ensuring the reliability of the sealing effect.

[0011] Preferably, the movable component is fixedly connected to both sides with mating clips, and the end of the mating clip has a first protrusion; the base is fixedly connected to a second protrusion, and the first protrusion and the second protrusion cooperate to limit the horizontal movement of the movable component.

[0012] By adopting the above technical solution, during the process of the movable part being installed on the base through the slide groove, after the first protrusion and the second protrusion come into contact, the first protrusion and the second protrusion deform. When the movable part is installed on the base, the first protrusion and the second protrusion spring back and hook together in opposite directions, thereby achieving the positioning of the movable part.

[0013] Preferably, the cover has guide grooves on both sides, and the base has slides fixedly connected to both sides of the base. The slides cooperate with the guide grooves to achieve a sliding connection between the cover and the base. The base also has a cover positioning groove, and a positioning block is fixedly connected to the inside of the cover. The positioning block cooperates with the cover positioning groove to achieve the positioning of the cover.

[0014] By adopting the above technical solution, the cover slides onto the base through the guide groove and the base slide; when the positioning block is engaged in the positioning groove of the cover, the installation of the cover is completed. The cover covers the moving parts to prevent external foreign objects from affecting the normal operation of the sealing device.

[0015] Preferably, the base is U-shaped and engages with the sliding door frame.

[0016] By adopting the above technical solution, the base is engaged with the sliding door frame through the U-shaped structure on both sides, achieving initial positioning and installation.

[0017] Preferably, the base has fixing holes on both sides of its bottom, and the base is installed on the sliding door through the fixing holes.

[0018] By adopting the above technical solution, the base is firmly fixed to the sliding door frame by passing screws through the fixing holes at the bottom of the base, forming a stable installation foundation.

[0019] In summary, this application has at least the following beneficial effects: 1. The purpose of setting up the sealing elastic component and the sealing cotton component is that when the sliding door is lowered and closed, the sealing elastic component releases its elasticity, ensuring that the sealing cotton component always adheres to the door frame to form a seal; when the door is raised, the sealing elastic component is compressed, and due to the low friction of the sealing cotton component, the sliding door will not lag, thus not affecting the smoothness of sliding. Because the sealing cotton component and the sealing elastic component achieve dynamic self-adaptation of the seal as the sliding door moves, the smoothness of sliding is ensured and the sealing effect between the door and the door frame is improved.

[0020] 2. The purpose of using GR cotton or PU cotton and absorbent sealing cotton in the sealing cotton assembly is that absorbent sealing cotton has a low friction effect and a certain compression ratio, and it comes into direct contact with the door frame; GR cotton or PU cotton has good compressibility and sealing performance; the two types of sealing cotton work together to achieve a balance between low friction sliding and high sealing performance.

[0021] 3. The purpose of setting a matching clip to form a first protrusion and setting a second protrusion on the base is that when the movable part is installed on the base through the slide groove, after the first protrusion and the second protrusion come into contact, the first protrusion and the second protrusion deform. When the movable part is installed on the base, the first protrusion and the second protrusion spring back and hook together in opposite directions, thereby realizing the positioning of the movable part. Attached Figure Description

[0022] Figure 1 These are existing technical drawings; Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the moving part and the base under compressed conditions in the embodiments of this application; Figure 4 This is a schematic diagram of the base structure in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the movable component in the embodiments of this application; Figure 6 This is a schematic diagram of the connection method between the movable component and the base in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 001, rubber sheet; 002, cover base; 003, positioning hole; 100, base; 110, slide groove; 120, positioning groove; 130, slide track; 140, cover positioning groove; 150, fixing hole; 160, second protrusion; 200, moving part; 210, sealing cotton assembly; 211, first sealing cotton; 212, second sealing cotton; 220, sealing elastic assembly; 221, fixing support; 222, spring; 230, mating clip; 231, first protrusion; 300, cover. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 2-6 This application will be described in further detail.

[0025] This application discloses a dynamic sealing device suitable for lifting sliding doors.

[0026] Reference Figure 2 and Figure 3 A dynamic sealing device suitable for lifting sliding doors includes a base 100, a movable part 200, a sealing cotton assembly 210, a sealing elastic assembly 220, and a cover 300.

[0027] The base 100 has fixing holes 150 on both sides. Fastening screws are passed through the fixing holes 150 to install the base 100 onto the sliding door frame. A movable component 200 is installed on the base 100; in this application, the movable component 200 refers to a slider. A sealing cotton assembly 210 is installed on the movable component 200 to fit snugly against the door frame, forming a seal. A sealing elastic component 220 is installed on the movable component 200 to ensure that the sealing cotton assembly 210 remains in contact with the door frame. A cover 300 is installed on the base 100 to cover the movable component 200.

[0028] Reference Figure 4The base 100 has a U-shaped structure on both sides, which is engaged with the sliding door frame to connect the base 100 to the sliding door frame.

[0029] Reference Figure 4 and Figure 5 A sliding groove 110 is provided on the base 100, and the movable part 200 is slidably installed on the base 100 through the sliding groove 110. In addition, a mating clip 230 is fixedly connected to both sides of the movable part 200, and a first protrusion 231 is formed at the end of the mating clip 230; a second protrusion 160 is fixedly connected to the base 100. During the process of the movable part 200 being installed on the base 100 through the sliding groove 110, after the first protrusion 231 and the second protrusion 160 come into contact, the first protrusion 231 and the second protrusion 160 deform. When the movable part 200 is installed on the base 100, the first protrusion 231 and the second protrusion 160 spring back and hook together in opposite directions, thereby realizing the positioning of the movable part 200.

[0030] Furthermore, referring to Figure 2 and Figure 4 Slide rails 130 are fixedly connected to both sides of the base 100, and guide grooves (not shown in the figure) are provided on both sides of the cover 300. During installation, the guide grooves of the cover 300 are aligned with the slide rails 130 of the base 100 and slid to achieve initial engagement between the cover 300 and the base 100. To further ensure the positioning of the cover 300, a positioning block is fixedly connected to the inside of the cover 300. Correspondingly, a cover positioning groove 140 is provided on the base 100. When the positioning block is engaged with the cover positioning groove 140, the installation of the cover 300 is completed.

[0031] In this embodiment, refer to Figure 5 and Figure 6 The sealing cotton assembly 210 adopts a double-layer composite structure, including a first sealing cotton 211 and a second sealing cotton 212.

[0032] The first sealing cotton 211 is installed on the movable part 200 as the main sealing layer. It has good compressibility and sealing performance. It is made of GR cotton or PU cotton with high compressibility, high sealing and high resilience. It can produce large deformation when under pressure, fully fill the gap between the sliding door leaf and the door frame, provide the main sealing force, and at the same time provide flexible elastic support for the entire component.

[0033] The second sealing cotton 212 is installed on the first sealing cotton 211. It is an absorbent sealing cotton with a good low coefficient of friction and compression ratio. It directly contacts the sliding door frame, and its low coefficient of friction ensures the smooth movement of the sliding door. The absorbent sealing cotton can be felt.

[0034] The sealing elastic component 220 includes a fixed support post 221 and a spring 222. Two fixed supports post 221 are provided, each fixedly connected to the end of the movable component 200 away from the sealing cotton component 210. The spring 222 is correspondingly provided with the fixed supports post 221, with one end sleeved on the corresponding fixed support post 221. Two positioning grooves 120 are provided on the base 100. After the movable component 200 is installed on the base 100, the other end of the spring 222 passes through the corresponding positioning groove 120.

[0035] The implementation principle of this embodiment is as follows: A movable component 200 supported by a sealing elastic component 220 is set up, and a sealing cotton component 210 is installed on the movable component 200. When the sliding door is lowered and closed, the sealing elastic component 220 releases its elasticity, ensuring that the sealing cotton component 210 remains in contact with the door frame to form a seal. When the door is raised, the sealing elastic component 220 is compressed. Due to the low friction of the sealing cotton component 210, the sliding door will not lag, thus not affecting the smoothness of the sliding. Since the sealing cotton component 210 and the sealing elastic component 220 achieve dynamic self-adaptation of the seal as the sliding door moves, the smoothness of the sliding is ensured, and the sealing effect between the door and the door frame is improved.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dynamic sealing device suitable for lifting sliding doors, characterized in that, include: The base (100) is installed on the upper side of the sliding door leaf; The movable part (200) is mounted on the base (100); The sealing cotton assembly (210) is installed on the movable part (200) and is used to fit against the door frame to form a sealed state; A sealing elastic component (220) is installed on the movable part (200) to keep the sealing cotton component (210) in contact with the door frame at all times; A cover (300) is mounted on the base (100) to cover the movable part (200).

2. The dynamic sealing device for a sliding door according to claim 1, characterized in that, The sealing cotton assembly (210) includes: The first sealing cotton (211) is installed on the movable part (200) and includes GR cotton or PU cotton; The second sealing cotton (212) is installed on the first sealing cotton (211) and includes absorbent sealing cotton.

3. A dynamic sealing device suitable for lifting sliding doors according to claim 1, characterized in that, The sealing elastic component (220) includes: There are two fixed support pillars (221), both of which are fixedly connected to the movable part (200); A spring (222) is provided corresponding to the fixed support (221), and one end is sleeved on the corresponding fixed support (221); The base (100) is provided with a sliding groove (110) and two positioning grooves (120). The movable part (200) is installed on the base (100) through the sliding groove (110). The other end of the spring (222) is inserted into the corresponding positioning groove (120).

4. A dynamic sealing device suitable for lifting sliding doors according to claim 3, characterized in that, The movable part (200) is fixedly connected to two sides with a mating clip (230), and the end of the mating clip (230) is formed with a first protrusion (231); the base (100) is fixedly connected to a second protrusion (160), and the first protrusion (231) and the second protrusion (160) cooperate to limit the horizontal movement of the movable part (200).

5. A dynamic sealing device suitable for lifting sliding doors according to claim 1, characterized in that, The cover (300) has guide grooves on both sides, and the base (100) has slides (130) fixedly connected to both sides of the edge. The slides (130) cooperate with the guide grooves to make the cover (300) and the base (100) slide together. The base (100) has a cover positioning groove (140), and a positioning block is fixedly connected to the inside of the cover (300). The positioning block cooperates with the cover positioning groove (140) to position the cover (300).

6. A dynamic sealing device suitable for lifting sliding doors according to claim 1, characterized in that, The base (100) is U-shaped and engages with the sliding door frame.

7. A dynamic sealing device suitable for lifting sliding doors according to claim 1, characterized in that, The base (100) has fixing holes (150) on both sides of its bottom, and the base (100) is installed on the sliding door through the fixing holes (150).

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