Dustproof sliding door
By installing a buffer component on the bottom track of the sliding door, using semicircular blocks and springs to slow down the sliding door's movement speed, the problem of impact and noise caused by inertia in traditional sliding doors is solved, improving the door's stability and quietness, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING FEIKE SMART HOME CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional sliding doors move too fast due to inertia when opening or closing, generating significant impact and noise, which affects the user experience and shortens their lifespan, especially in environments with high requirements for stability and quietness, such as cleanrooms, laboratories, hospitals, or food processing workshops.
A buffer assembly is installed on the bottom track of the sliding door, including a component base, a semicircular block, a guide rail, and a spring. The semicircular block presses against the component base to slow down the sliding door, and the spring rebounds to clamp and fix it, reducing impact and noise.
It effectively alleviates the impact and noise problems when sliding doors are opened or closed, improves the stability and quietness of the door, and extends the service life of the door.
Smart Images

Figure CN224244703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furniture dust prevention technology, and more specifically, to a dustproof sliding door. Background Technology
[0002] Dustproof sliding doors are sliding doors designed with a multi-layered sealing structure and specialized sealing materials. They feature high sealing performance, dustproof, waterproof, and windproof functions. The door frame and door leaf are usually made of sturdy and durable aluminum alloy or tempered glass. The track system is specially designed to be enclosed to prevent dust from entering, and the pulley and bearing system ensures smooth sliding and reduces dust accumulation. At the same time, they emphasize aesthetic design and are suitable for various home and commercial spaces, effectively maintaining indoor cleanliness and improving the overall environmental quality.
[0003] For example, Chinese patent disclosure: A sliding door with dustproof function, application number: CN202220485096.5, includes: a bottom track, a sliding door, and a dustproof strip. The bottom track is provided with a groove, and the sliding door is slidably disposed in the groove. The dustproof strip passes through the bottom of the sliding door, and both ends of the dustproof strip are fixed to the two ends of the bottom track. With this structure, when the sliding door is pushed in one direction, the part of the dustproof strip at the front end of the sliding door in the pushing direction gradually slides into the interior of the sliding door, and the part at the rear end of the sliding door in the pushing direction slides out from the interior of the sliding door and lies on the bottom track, thereby covering the groove on the bottom track, so as to prevent dust from entering the groove and affecting the normal use of the sliding door.
[0004] However, among the aforementioned technical solutions, sliding doors are widely used in daily life and industrial applications due to their space-saving and convenient operation. However, when traditional sliding doors are opened or closed, the door leaf often moves too fast due to inertia, which can easily generate a large impact force and noise. This not only affects the user experience but may also damage the door structure and shorten its service life. This is especially true in the application scenarios of dustproof sliding doors, such as clean rooms, laboratories, hospitals, or food processing workshops, where the requirements for door stability and quietness are even higher. Utility Model Content
[0005] The main purpose of this utility model is to provide a dustproof sliding door, which can effectively solve the problem in the background art. Sliding doors are widely used in daily life and industrial applications because of their space-saving and convenient operation. However, when traditional sliding doors are opened or closed, the door leaf often moves too fast due to inertia, which can easily generate a large impact force and noise. This not only affects the user experience, but may also damage the door structure and shorten its service life. This is especially true in the application scenarios of dustproof sliding doors, such as clean rooms, laboratories, hospitals or food processing workshops, where the requirements for door stability and quietness are even higher.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dustproof sliding door, including a bottom horizontal rail, a first sliding groove provided on the bottom horizontal rail, a plurality of second sliding grooves provided on both sides of the first sliding groove, a buffer component provided in the second sliding groove, a sliding door slidably provided in the first sliding groove, a groove provided on one side of the bottom surface of the sliding door, a plurality of rolling wheels rotatably provided in the groove, and a dustproof strip provided on one side of the bottom horizontal rail.
[0007] Preferably, the dustproof strip is fixed at both ends to the two ends of the first slide groove, and a portion of the dustproof strip passes through the bottom of the sliding door.
[0008] Preferably, the buffer assembly includes a component base, a semi-circular block is provided on one side of the component base, and a plurality of guide grooves are provided on the component base, with guide sliders slidably disposed in the guide grooves.
[0009] Preferably, a spring is fixedly installed on the side of the component base away from the semicircular block.
[0010] Preferably, the component base slides in the second groove.
[0011] Preferably, the guide slider and spring are fixedly installed in the second slide groove.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] (1) When the sliding door is pushed to one side, the sliding door is opened or closed. Then, the bottom surface of the sliding door presses against the semi-circular block, the semi-circular block presses against the component base, the component base moves into the second slide groove, the spring deforms, and the semi-circular block slows down the movement speed generated when the sliding door is opened or closed. Thus, the sliding door is slowly decelerated when it is opened or closed by several buffer components, reducing impact and noise, and preventing the sliding door from being violently impacted. At the same time, when some buffer components are located below the groove due to the continuous movement of the sliding door, the spring rebounds, so that the semi-circular block is located in the groove. Thus, the sliding door is clamped and fixed to a certain extent by several buffer components, preventing the sliding door from easily moving unexpectedly after it is opened or closed. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a dustproof sliding door according to the present invention;
[0015] Figure 2 This is a schematic diagram of the internal structure of a dustproof sliding door according to the present invention;
[0016] Figure 3 This is a schematic diagram of the buffer assembly in a dustproof sliding door according to the present invention.
[0017] In the diagram: 1. Bottom rail; 2. First slide rail; 3. Second slide rail; 4. Buffer assembly; 401. Component base; 402. Semicircular block; 403. Guide slide rail; 404. Guide slider; 405. Spring; 5. Sliding door; 6. Groove; 7. Rolling wheel; 8. Dustproof belt. Detailed Implementation
[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0019] like Figure 1 and Figure 2 As shown, a dustproof sliding door includes a bottom rail 1, a first groove 2 on the bottom rail 1, several second grooves 3 on both sides of the first groove 2, a buffer assembly 4 in the second groove 3, a sliding door 5 slidably disposed in the first groove 2, a groove 6 on one side of the bottom surface of the sliding door 5, several rolling wheels 7 rotatably disposed in the groove 6, and a dustproof strip 8 on one side of the bottom rail 1.
[0020] like Figure 3 As shown, in another embodiment of the present invention, the buffer component 4 includes a component base 401, a semi-circular block 402 is provided on one side of the component base 401, and a plurality of guide grooves 403 are provided on the component base 401, and a guide slider 404 is slidably disposed in the guide grooves 403.
[0021] A spring 405 is fixedly installed on the side of the component base 401 away from the semicircular block 402;
[0022] When the sliding door 5 is opened or closed, if it needs to move to one side, the bottom surface of the sliding door 5 presses against the semicircular block 402, which in turn presses against the component base 401. The component base 401 moves into the second slide groove 3, and the spring 405 deforms. The semicircular block 402 slows down the movement speed of the sliding door 5 when it is opened or closed. This, along with several buffer components 4, slows down the sliding door 5 when it is opened or closed, reducing impact and noise and preventing the sliding door 5 from violently impacting. At the same time, when some of the buffer components 4 are located below the groove 6 due to the continuous movement of the sliding door 5, the spring 405 rebounds, causing the semicircular block 402 to be located in the groove 6. This, along with several buffer components 4, clamps and fixes the sliding door 5 to a certain extent, preventing the sliding door 5 from easily moving unexpectedly after it is opened or closed.
[0023] The working principle of this type of dustproof sliding door:
[0024] In use, the dustproof strip 8 is used to cover the first slide groove 2 on the bottom horizontal rail 1 to prevent dust from entering the first slide groove 2. When the sliding door 5 is pushed to one side to open or close, the bottom surface of the sliding door 5 presses against the semi-circular block 402, which in turn presses against the component base 401. The component base 401 moves into the second slide groove 3, and the spring 405 deforms. The semi-circular block 402 slows down the movement speed of the sliding door 5 when it is opened or closed. Thus, the sliding door 5 is slowly decelerated when it is opened or closed by several buffer components 4, reducing impact and noise and preventing the sliding door 5 from being violently impacted. At the same time, when some of the buffer components 4 are located below the groove 6 due to the continuous movement of the sliding door 5, the spring 405 rebounds, so that the semi-circular block 402 is located in the groove 6. Thus, the sliding door 5 is clamped and fixed to a certain extent by several buffer components 4, preventing the sliding door 5 from easily moving unexpectedly after it is opened or closed.
[0025] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims
1. A dustproof sliding door, comprising a bottom track (1), characterized in that: The bottom horizontal rail (1) is provided with a first sliding groove (2), and a number of second sliding grooves (3) are provided on both sides of the first sliding groove (2). A buffer component (4) is provided in the second sliding groove (3). A sliding door (5) is slidably provided in the first sliding groove (2). A groove (6) is provided on one side of the bottom surface of the sliding door (5). A number of rolling wheels (7) are rotatably provided in the groove (6). A dustproof belt (8) is provided on one side of the bottom horizontal rail (1).
2. A dustproof sliding door according to claim 1, characterized in that: The dustproof strip (8) is fixed at both ends of the first slide groove (2), and a portion of the dustproof strip (8) passes through the bottom of the sliding door (5).
3. A dustproof sliding door according to claim 2, characterized in that: The buffer assembly (4) includes a component base (401), a semi-circular block (402) is provided on one side of the component base (401), and a plurality of guide grooves (403) are provided on the component base (401), and a guide slider (404) is slidably arranged in the guide grooves (403).
4. A dustproof sliding door according to claim 3, characterized in that: A spring (405) is fixedly installed on the side of the component base (401) away from the semicircular block (402).
5. A dustproof sliding door according to claim 4, characterized in that: The component base (401) slides in the second groove (3).
6. A dustproof sliding door according to claim 5, characterized in that: The guide slider (404) and spring (405) are fixedly installed in the second slide groove (3).