Sound insulation type lifting sliding door
By installing sealing components and moving wheels at the top and bottom of the sliding door leaf, the gap problem caused by the "lift-up" installation method is solved, improving the sound insulation effect and extending the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ZHANXIN GLASS PRODUCTS CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-08
AI Technical Summary
Existing sliding doors require an "uplift" installation method, which inevitably creates a gap between the top of the door leaf and the door frame, affecting sound insulation.
Sealing components, including sealing strips and pull ropes, are installed on the upper and lower surfaces of the door leaf. The rotation of the lock cylinder drives the pull rope to make the sealing strip elastically abut against the door frame. The sealing strip is tightened when the door leaf is not closed and loosened when it is closed to ensure a sealing effect. At the same time, movable wheels are used to reduce sliding friction.
It effectively improves the gap problem caused by the installation method, enhances the sound insulation effect, and extends the service life of the sliding door.
Smart Images

Figure CN224214040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door technology, specifically a soundproof lift-up sliding door. Background Technology
[0002] Sliding doors are a type of door that opens and closes by sliding along a horizontal track. They mainly consist of a door frame, door panels, pulleys, and a track. Door panels can be used individually or in multiples in tandem, sliding without taking up extra space and offering flexible and convenient opening.
[0003] In the prior art, utility model patent CN201520683149.4 discloses a sliding door, which includes a door leaf, rollers, and a frame. The rollers include an upper roller and a lower roller. An upper slide rail is provided on the top wall of the frame near the door leaf, and the upper roller is located on the side of the door leaf corresponding to the upper slide rail, matching the upper slide rail. The bottom wall of the frame is opposite to the top wall, and a lower slide rail is provided on the bottom wall. The lower slide rail includes a slide rail protrusion extending along the moving direction of the door leaf, and the lower roller has a concave wheel body to match the slide rail protrusion of the lower slide rail. This sliding door's slide rail protrusion makes the sliding door more stable during sliding, less prone to detaching from the frame, and more wear-resistant and less prone to fading compared to existing technologies.
[0004] The aforementioned patent describes a sliding door that can be opened and closed by sliding. This sliding door uses sliding rail protrusions to make it more stable during the sliding process. However, this type of sliding door requires an "uplift" installation method, which involves embedding the upper part of the door leaf into the door frame mounting groove, aligning the lower part with the track, and then lowering it for fixation. The reserved installation space will inevitably create a gap between the upper part of the door leaf and the door frame, resulting in poor sound insulation. Utility Model Content
[0005] The purpose of this utility model is to provide a soundproof lift-up sliding door, which aims to improve the problem that existing sliding doors require an "uplift" installation method during installation. The reserved installation space will inevitably lead to a gap between the upper part of the door leaf and the door frame, resulting in poor sound insulation.
[0006] This utility model is implemented as follows: A soundproof lift-and-slide door includes a door frame and door leaves. A pair of door leaves are slidably disposed in the door frame. A sealing assembly is also included. A door lock is provided at the closed end of the pair of door frames, and a lock cylinder is rotatably disposed in the door lock. Sealing assemblies are provided on both the upper and lower end faces of the pair of door leaves. Each sealing assembly includes a mounting base, a sealing strip, and a pull rope. Mounting bases are provided on both the upper and lower end faces of the door leaves. A sealing strip is elastically disposed on the end face of the mounting base facing the door frame. One end of the pull rope is wound around the lock cylinder, and the other end passes through the door frame and connects to the mounting base. The sealing strip can elastically abut against the door frame.
[0007] Preferably, the door leaf has movable grooves on three end faces that abut against the door frame, the inner side of the door frame has an installation groove that matches the door leaf, the installation groove has a boss that matches the movable groove, the door leaf is slidably disposed in the installation groove, and the movable groove is slidably seated on the boss; sealing components are embedded on the upper and lower end faces of the door leaf located on both sides of the movable groove.
[0008] Preferably, the door frame includes a drainage hole, and the drainage hole is provided transversely through the mounting groove.
[0009] Preferably, the door panel also includes movable wheels. Multiple movable wheels are arranged sequentially along the length of the movable groove at the lower end of the door panel, and the door panel is slidably mounted on the boss via the movable wheels.
[0010] Preferably, each of the pair of door panels is provided with a lock sleeve at the closed end, and the pair of lock sleeves are coaxially arranged; a lock cylinder is rotatably installed in each of the pair of lock sleeves, and a positioning spring ball is provided on the side of the lock cylinder with elastic contraction; a limiting hole adapted to the positioning spring ball is provided on the lock sleeve, and the positioning spring ball is engaged in the limiting hole.
[0011] Preferably, the door lock further includes a locking rod, one of the lock cylinders is elastically slidably provided with the locking rod, and the other is provided with a lock groove; one end of the locking rod facing the lock groove is provided with a polygonal lock head, and the other end is provided with a lock handle; the polygonal lock head is slidably inserted into the lock groove; a check rod is provided on the locking rod next to the lock handle, and a catch is provided on the door leaf that is adapted to the check rod.
[0012] Preferably, the door lock further includes a return spring; the lock cylinder is provided with a return spring, and the lock rod is elastically installed in the lock cylinder through the return spring.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model provides a sealing strip that can elastically abut against the door frame at the top and bottom of the door leaf. When the door leaf is not closed, the sealing strip is tightened by the lock cylinder. When the door leaf is closed, the lock cylinder rotates and drives the pull rope to loosen, so that the sealing strip can elastically abut against the door frame. This effectively improves the problem that the installation space reserved by the "lift-up" installation method will inevitably lead to a gap between the top of the door leaf and the door frame.
[0015] 2. By setting movable wheels, the door leaf is mounted on the door frame, which can reduce the sliding friction between the door leaf and the door frame and improve the service life of the sliding door. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 This is a structural schematic diagram of the door frame of this utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the door leaf of this utility model;
[0019] Figure 4 This is a side view of the door leaf structure of this utility model;
[0020] Figure 5 This is a structural schematic diagram of the door lock of this utility model;
[0021] Figure 6 This is a schematic diagram of the sealing assembly of this utility model;
[0022] Figure 7 This is a utility model Figure 6 A schematic diagram of the structure at point A in the middle.
[0023] In the diagram: 1. Door frame; 101. Mounting groove; 102. Drain hole; 2. Door leaf; 201. Moving groove; 202. Lock sleeve; 203. Lock catch; 3. Door lock; 301. Lock cylinder; 302. Lock rod; 303. Lock handle; 304. Return spring; 305. Polygonal lock head; 306. Lock groove; 307. Positioning spring ball; 308. Check rod; 4. Sealing assembly; 401. Mounting base; 402. Support spring; 403. Sealing strip; 404. Rope hole; 405. Pull rope; 406. Directional wheel; 5. Moving wheel. Detailed implementation method:
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:
[0026] Example 1
[0027] like Figure 1 and Figures 3-5As shown, a soundproof lift-and-slide door includes a door frame 1 and door panels 2. A pair of door panels 2 are slidably disposed in the door frame 1, so that the two door panels 2 can completely cover the door frame 1. It also includes movable wheels 5. Multiple movable wheels 5 are arranged sequentially along the length direction in the movable groove 201 at the lower end of the door panel 2. The door panel 2 is slidably mounted on the boss through the movable wheels 5. The door panel 2 is slidably mounted on the door frame 1 through the movable wheels 5. The movable wheels 5 can reduce the sliding friction and prevent damage to the sliding contact point between the door frame and the door panel. Meanwhile, a limiting groove is also provided on the end face where the door frame 2 and the moving wheel 5 abut. When the door leaf 2 is closed, a limiting groove is provided at the lower end face of the door frame 2 corresponding to the moving wheel 5. The transition between the limiting groove and the lower end face of the door frame 2 is achieved through an arc surface, ensuring that when the moving wheel 5 moves into the limiting groove, a certain amount of moving resistance is generated, ensuring that the door leaf 2 will not automatically slide open when closed. At the same time, the arc surface transition between the limiting groove and the lower end face of the door frame 2 makes it easy to open the door leaf 2 without requiring too much effort from the user. Sealing gaskets are provided on both sides of the door frame 1 and at the abutment point of the door leaf 2, thereby ensuring a sealing effect between the sides of the door leaf 2 and the door frame 1. The system also includes a sealing assembly 4. A door lock 3 is installed at the closed end of a pair of door frames 1, with a lock cylinder 301 rotatably mounted within the lock 3. A lock sleeve 202 is installed at the closed end of a pair of door leaves 2, and the lock sleeves 202 are coaxially arranged. A lock cylinder 301 is rotatably mounted within each lock sleeve 202. A positioning spring ball 307 is elastically contractible on the side of the lock cylinder 301. The positioning spring ball 307 is a retractable limiting ball head structure. A limiting hole is provided on the lock sleeve 202 that matches the positioning spring ball 307, and the positioning spring ball 307 is engaged in the limiting hole. This prevents the lock cylinder 301 from rotating independently. The door lock 3 also includes a lock rod 302, with one lock cylinder 301 having a lock rod 302 elastically slidably mounted thereon, and the other having a lock groove 306. The door lock 3 also includes a return spring 304. The lock cylinder 301 has a return spring 304, and the lock rod 302 is elastically mounted within the lock cylinder 301 via the return spring 304. A polygonal lock head 305 is provided at one end of the locking rod 302 facing the lock groove 306, and a lock handle 303 is provided at the other end; the polygonal lock head 305 can be slidably inserted into the lock groove 306; a check rod 308 is provided on the locking rod 302 next to the lock handle 303, and a stop latch 203 adapted to the check rod 308 is provided on the door leaf 2.By pressing the lock handle 303, the lock rod 302 can be moved elastically toward the lock groove 306, thereby inserting the polygonal lock head 305 into the lock groove 306. Then, rotating the lock handle 303 can simultaneously drive the lock cylinders 301 on both door leaves to rotate synchronously. The positioning spring ball 307 can be automatically compressed into itself by applying a certain force, thereby achieving rotation. Then, as the lock rod 302 rotates, the check rod 308 can be rotated into the stop 203. The stop 203 has a certain inner curvature, which can prevent the lock rod 302 from rotating back. At the same time, it can also restrict the lock rod 302 from springing back through the return spring 304, causing the polygonal lock head 305 to disengage from the lock groove 306, thereby closing the door leaf 2.
[0028] like Figures 1-4 , Figure 6 and Figure 7As shown, the door leaf 2 has movable grooves 201 on three end faces that abut against the door frame 1. The inner side of the door frame 1 has a mounting groove 101 adapted to the door leaf 2. The mounting groove 101 has a protrusion adapted to the movable groove 201. The door leaf 2 is slidably disposed in the mounting groove 101, and the movable groove 201 slidably rests on the protrusion. The movable groove 201 can completely cover the edge of the door leaf 2, thus achieving a better sealing effect. Sealing components 4 are embedded in the upper and lower end faces of the door leaf 2 on both sides of the movable groove 201. The door frame 1 includes a drain hole 102, which is transversely disposed in the mounting groove 101. A pair of door leaves 2 are provided with sealing components 4 on both the upper and lower ends. The sealing components 4 include mounting bases 401, sealing strips 403 and pull ropes 405. Mounting bases 401 are provided on both the upper and lower ends of the door leaves 2. The sealing strips 403 are elastically provided on the end face of the mounting bases 401 facing the door frame 1. One end of the pull rope 405 is wrapped around the lock cylinder 301, and the other end passes through the door frame 1 and the mounting bases 401 to connect the mounting bases 401. The sealing strips 403 can elastically abut against the door frame 1. The mounting base 401 has a rope hole 404 extending along its length. The closed ends of the two door panels 2 also have corresponding rope grooves. The pull rope 405 can connect the lock cylinder 301 and the sealing strip 403 through the rope hole 404 and the rope groove on the door panel. Thus, the sealing strip 403 can be pulled by the pull rope 405 to compress the support spring 402 and disengage from the door frame 1, or the pull rope can be released so that the sealing strip 403 elastically abuts against the door frame 1 through the support spring 402, thereby achieving a seal between the upper and lower ends of the door panel and the door frame. At the same time, a deflector wheel 406 is provided at the position where the pulling direction of the pull rope 405 changes, thereby preventing friction between the pull rope 405 and the door frame at the deflection position. Meanwhile, by setting a positioning spring ball 307 on the lock cylinder 301, when the lock cylinder 301 is locked onto the lock sleeve 202 by the positioning spring ball 307, the sealing strip 403 is pulled away from the door frame 1 by the pull rope. When the door is closed and the lock handle 303 is turned to drive the lock cylinder to turn and close the door, the pull rope 405 will be released, so that the sealing strip 403 will automatically abut against the door frame 1. Thus, when the door is open, the sealing strip 403 will not abut against the door frame 1 and will not affect the sliding of the door 2 and the door frame 1. When the door 2 is closed, the sealing strip 403 will automatically abut against the door frame 1 to seal as the door lock turns. Furthermore, through multiple experiments, it has been verified that a suitable positioning spring ball 307 is selected, so that the lock cylinder 301 can stably pull the pull rope 405 and restrict the rotation by the positioning spring ball 307, ensuring that the sealing strip 403 is always pulled taut by the pull rope when the sliding door is not closed, without affecting the normal pushing of the door 2.
[0029] Example 2
[0030] like Figure 1 and Figures 3-5As shown, a soundproof sliding door includes a door frame 1 and door panels 2. A pair of door panels 2 are slidably disposed in the door frame 1. The door frame 1 also includes casters 5. Multiple casters 5 are sequentially disposed along the length of the lower end of the door panel 2 within a movable groove 201. The door panel 2 is slidably mounted on a boss via the casters 5. A sealing assembly 4 is also included. A door lock 3 is disposed at the closed end of the pair of door frames 1, and a lock cylinder 301 is rotatably disposed within the door lock 3. A lock sleeve 202 is disposed at the closed end of each pair of door panels 2, and the lock sleeves 202 are coaxially disposed. A lock cylinder 301 is rotatably mounted within each pair of lock sleeves 202. A positioning spring ball 307 is elastically contracted on the side of the lock cylinder 301. A limiting hole adapted to the positioning spring ball 307 is provided on the lock sleeve 202, and the positioning spring ball 307 is engaged in the limiting hole. The door lock 3 also includes a locking rod 302, with one lock cylinder 301 having the locking rod 302 slidably mounted on it, and the other having a lock groove 306. The door lock 3 also includes a return spring 304. The lock cylinder 301 has a return spring 304, and the locking rod 302 is elastically mounted in the lock cylinder 301 via the return spring 304. One end of the locking rod 302 facing the lock groove 306 has a polygonal lock head 305, and the other end has a lock handle 303. The polygonal lock head 305 is slidably inserted into the lock groove 306. A check rod 308 is provided next to the lock handle 303 on the locking rod 302, and a catch 203 adapted to the check rod 308 is provided on the door leaf 2.
[0031] like Figures 1-4 , Figure 6 and Figure 7 As shown, the door leaf 2 has movable grooves 201 on all three end faces of the door frame 1. The inner side of the door frame 1 has an installation groove 101 adapted to the door leaf 2. The installation groove 101 has a boss adapted to the movable groove 201. The door leaf 2 is slidably disposed in the installation groove 101, and the movable groove 201 slidably rests on the boss. Sealing components 4 are embedded in the upper and lower end faces of the door leaf 2 on both sides of the movable groove 201. The door frame 1 includes a drain hole 102, which is transversely disposed in the installation groove 101. A pair of door leaves 2 are provided with sealing components 4 on both the upper and lower ends. The sealing components 4 include mounting bases 401, sealing strips 403 and pull ropes 405. Mounting bases 401 are provided on both the upper and lower ends of the door leaves 2. The sealing strips 403 are elastically provided on the end face of the mounting bases 401 facing the door frame 1. One end of the pull rope 405 is wrapped around the lock cylinder 301, and the other end passes through the door frame 1 and the mounting bases 401 to connect the mounting bases 401. The sealing strips 403 can elastically abut against the door frame 1.
[0032] The working principle of this utility model is as follows: When the door leaf 2 is pushed to close the sliding door, pressing the lock handle 303 causes the lock rod 302 to move elastically toward the lock groove 306, thereby inserting the polygonal lock head 305 into the lock groove 306. Then, rotating the lock handle 303 can simultaneously drive the lock cylinders 301 on both door leaves to rotate synchronously. The positioning spring ball 307 can be automatically compressed into place by applying a certain force, thereby realizing the rotation. When the lock rod 302 rotates, the check rod 308 rotates into the stop 203, restricting the lock rod 302 from springing back through the return spring 304, causing the polygonal lock head 305 to disengage from the lock groove 306, thereby closing the door leaf 2. Meanwhile, when the lock cylinder 301 is locked onto the lock sleeve 202 by the positioning spring ball 307, the sealing strip 403 is pulled away from the door frame 1 by the pull rope. When the door is closed and the lock handle 303 is turned to drive the lock cylinder to turn and close the door, the pull rope 405 will be released, so that the sealing strip 403 will automatically abut against the door frame 1. Thus, when the door is open, the sealing strip will not abut against the door frame 1 and will not affect the sliding of the door 2 and the door frame 1. When the door 2 is closed, the sealing strip 403 will automatically abut against the door frame 1 to seal as the door lock is turned.
[0033] In summary, this utility model provides sealing strips 403 that can elastically abut against the door frame 1 at the top and bottom of the door leaf 2. When the door leaf 2 is not closed, the sealing strip 403 is tightened by the lock cylinder 301. When the door leaf 2 is closed, the lock cylinder rotates to release the pull rope 405, thus allowing the sealing strip 403 to elastically abut against the door frame 1. This effectively improves the problem of unavoidable gaps between the top of the door leaf and the door frame caused by the reserved installation space in the "lift-up" installation method. By providing moving wheels 5, the door leaf 2 is mounted on the door frame 1 via the moving wheels 5, which can reduce the sliding friction between the door leaf 2 and the door frame 1 and improve the service life of the sliding door.
[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A soundproof lift-and-slide door, comprising a door frame (1) and door panels (2), wherein a pair of door panels (2) are slidably disposed in the door frame (1), characterized in that, It also includes a sealing assembly (4), a door lock (3) is provided at the closed end of a pair of door frames (1), and a lock cylinder (301) is rotatably provided in the door lock (3); a sealing assembly (4) is provided on both the upper and lower end faces of a pair of door leaves (2), the sealing assembly (4) includes a mounting base (401), a sealing strip (403) and a pull rope (405), a mounting base (401) is provided on both the upper and lower end faces of the door leaves (2), and a sealing strip (403) is elastically provided on the end face of the mounting base (401) facing the door frame (1); one end of the pull rope (405) is wrapped around the lock cylinder (301), and the other end passes through the door frame (1) and the mounting base (401) to connect the mounting base (401); the sealing strip (403) can elastically abut against the door frame (1).
2. The soundproof lift-and-slide door according to claim 1, characterized in that, The door leaf (2) abuts against the three end faces of the door frame (1) and is provided with movable grooves (201). The inner side of the door frame (1) is provided with an installation groove (101) that matches the door leaf (2). The installation groove (101) is provided with a boss that matches the movable groove (201). The door leaf (2) is slidably disposed in the installation groove (101), and the movable groove (201) is slidably seated on the boss. Sealing components (4) are embedded on the upper and lower ends of the door leaf (2) on both sides of the movable groove (201).
3. A soundproof lift-and-slide door according to claim 2, characterized in that, The door frame (1) includes a drain hole (102), and the drain hole (102) is provided horizontally through the mounting groove (101).
4. A soundproof lift-and-slide door according to claim 2, characterized in that, In addition, it also includes movable wheels (5). Multiple movable wheels (5) are arranged sequentially along the length direction in the movable groove (201) at the lower end of the door leaf (2). The door leaf (2) is slidably mounted on the boss through the movable wheels (5).
5. A soundproof lift-and-slide door according to claim 1, characterized in that, A lock sleeve (202) is provided at the closed end of each pair of door leaves (2), and the pair of lock sleeves (202) are coaxially arranged; a lock cylinder (301) is rotatably installed in each pair of lock sleeves (202), and a positioning spring ball (307) is elastically contracted on the side of the lock cylinder (301). A limiting hole adapted to the positioning spring ball (307) is provided on the lock sleeve (202), and the positioning spring ball (307) is locked in the limiting hole.
6. A soundproof lift-and-slide door according to claim 5, characterized in that, The door lock (3) also includes a lock bar (302), one of the lock cylinders (301) is elastically slidably provided with the lock bar (302), and the other is provided with a lock groove (306); one end of the lock bar (302) facing the lock groove (306) is provided with a polygonal lock head (305), and the other end is provided with a lock handle (303); the polygonal lock head (305) can be slidably inserted into the lock groove (306); a check rod (308) is provided next to the lock handle (303) on the lock bar (302), and a catch (203) adapted to the check rod (308) is provided on the door leaf (2).
7. A soundproof lift-and-slide door according to claim 6, characterized in that, The door lock (3) also includes a return spring (304); the lock cylinder (301) is provided with a return spring (304), and the lock rod (302) is elastically installed in the lock cylinder (301) through the return spring (304).
Citation Information
Patent Citations
Sliding door
CN205012864U