Sliding door capable of reducing friction of sliding rail
By installing a storage compartment and airbag system inside the upper track of the sliding door, and a soft brush inside the lower track, the problem of door damage caused by high friction between the slider and the track is solved, achieving reduced friction and improved cleaning effect.
Patent Information
- Application Number
- CN202422095870.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing sliding door has a large friction between the slider and the track, which can easily lead to damage to the top of the door after prolonged use.
A storage compartment and an air bladder are installed inside the upper rail. The air bladder is squeezed by rollers to allow lubricating oil to flow into the slide groove to reduce friction. A soft brush is installed inside the lower rail to clean dust.
It effectively reduces friction in the sliding rails, extends the lifespan of the door, and keeps the sliding rails clean.
Smart Images

Figure CN223767339U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door technology, and more specifically, to a sliding door that reduces friction in the slide rail. Background Technology
[0002] Sliding doors are doors that can be pushed and pulled. They are quite common in home spaces. They can maximize space saving, facilitate the functional division and utilization of rooms, and also have significant advantages in terms of lighting, sound insulation, blocking views, and enhancing decoration, meeting different spatial needs. However, most existing sliding doors use a slider at the top of the door that slides and a track to connect, allowing the door to be pushed. When the door is pushed and pulled, the friction between the slider and the track is relatively large, and after a long time of pushing, the top of the door is easily damaged. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a sliding door that reduces the friction of the slide rail, which has the advantage of reducing friction.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a sliding door with reduced track friction, comprising an upper rail, a sliding groove inside the upper rail, a baffle fixedly installed inside the sliding groove, an installation groove inside the upper rail, a storage compartment inside the installation groove, an airbag and an oil outlet fixedly installed at the bottom of the storage compartment, a positioning plate fixedly installed at the bottom of the installation groove, the airbag located inside the positioning plate, a guide groove inside the sliding groove, the oil outlet located inside the guide groove, and the storage compartment located above the airbag.
[0005] As a preferred technical solution of this utility model, the bottom of the upper hanging rail is provided with a sliding door, a fixing block is fixedly installed above the sliding door, a connecting shaft is fixedly installed inside the fixing block, and rollers are rotatably connected to both the front and rear ends of the connecting shaft, with the rollers located inside the connecting shaft.
[0006] As a preferred technical solution of this utility model, there are two sliding doors, both of which are located at the bottom of the upper rail and are distributed in a front-to-back position. A first sealing strip is fixedly installed at the left front position of the sliding door located at the rear, and a second sealing strip is fixedly installed at the right rear position of the sliding door located at the front. The first sealing strip and the second sealing strip are in a fitted shape.
[0007] As a preferred technical solution of this utility model, the bottom of the sliding door is provided with a lower slide rail, the bottom of the lower slide rail is provided with a second slide groove, and a slider is slidably connected inside the second slide groove. There are two second slide grooves, which are respectively located at the bottom of the two sliding doors. There are two sliders, which are respectively fixedly connected to the two sliding doors.
[0008] As a preferred embodiment of this utility model, a connecting plate is fixedly installed at the bottom of each of the two sliders, and a soft brush is fixedly installed at the bottom of the connecting plate. The soft brush is located inside the lower slide rail and contacts the inner cavity of the lower slide rail.
[0009] As a preferred embodiment of this utility model, there are two connecting plates, which are respectively located at the bottom of the two sliders. There are multiple soft brushes, which are respectively located at the bottom of the two connecting plates. A cleaning hole is provided inside the sliding rail.
[0010] As a preferred embodiment of this utility model, there are multiple mounting slots and multiple storage compartments, all of which are located above the slide groove one. There are multiple guide slots, all of which are located inside the slide groove one.
[0011] In a preferred embodiment of this invention, there are four fixing blocks and four connecting shafts, each located above one of the two sliding doors. There are also multiple rollers, all located inside the upper hanging rail.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model features an installation groove inside the upper hanging rail, with a storage compartment inside the installation groove. An air bladder and an oil outlet are fixedly installed at the bottom of the storage compartment, with the oil outlet located inside the guide groove. When the roller rolls inside the first slide groove, it causes the sliding door to move. Due to the weight of the sliding door, the roller is pulled downwards, increasing the friction between the roller and the first slide groove. As the roller rolls inside the first slide groove, it compresses the air bladder, causing it to deform and compress the inside of the storage compartment. At this time, the lubricating oil inside the storage compartment flows into the first slide groove through the oil outlet along the guide groove, thus lubricating the surface of the roller and reducing friction.
[0014] 2. This utility model features a second sliding groove inside the lower sliding rail, with a slider slidably connected inside the second sliding groove. The slider is fixedly installed at the bottom of the sliding door, and a connecting plate is fixedly installed at the bottom of the slider. A soft brush is fixedly installed at the bottom of the connecting plate. When the sliding door is moved by the rolling action of the rollers and the first sliding groove, the slider will slide with the second sliding groove and move with the sliding door. At the same time, the soft brush at the bottom will brush inside the lower sliding rail, sweeping the dust inside the lower sliding rail on both sides, and then removing it through the cleaning hole, thereby achieving a certain dust removal effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is an exploded view of the overall structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the door panel structure of this utility model;
[0018] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A;
[0019] Figure 5 This is a partial structural cross-sectional view of the present invention;
[0020] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B;
[0021] Figure 7 This utility model Figure 5 A magnified schematic diagram of the structure at point C.
[0022] In the diagram: 1. Upper hanging rail; 2. Slide 1; 3. Baffle; 4. Mounting groove; 5. Storage compartment; 6. Positioning plate; 7. Airbag; 8. Guide groove; 9. Oil outlet; 10. Sliding door; 11. Fixing block; 12. Connecting shaft; 13. Roller; 14. First sealing strip; 15. Second sealing strip; 16. Lower sliding rail; 17. Slide 2; 18. Slider; 19. Connecting plate; 20. Soft brush; 21. Cleaning hole. Detailed Implementation
[0023] 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.
[0024] like Figures 1 to 7 As shown, this utility model provides a sliding door that reduces friction of the sliding rail, including an upper rail 1, an inner groove 2, a baffle 3 fixedly installed inside the inner groove 2, an inner mounting groove 4, a storage compartment 5 inside the inner mounting groove 4, an airbag 7 and an oil outlet 9 fixedly installed at the bottom of the storage compartment 5, a positioning plate 6 fixedly installed at the bottom of the mounting groove 4, the airbag 7 being located inside the positioning plate 6, a guide groove 8 being provided inside the inner groove 2, the oil outlet 9 being located inside the guide groove 8, and the storage compartment 5 being located above the airbag 7.
[0025] The storage compartment 5 is a cylinder with a hollow interior. Its main function is to inject a large amount of lubricating oil inside. When the roller 13 rolls, it can slightly squeeze the air bladder 7, causing the air bladder 7 to compress the interior of the storage compartment 5. This allows the lubricating oil inside the storage compartment 5 to flow from the inside of the guide groove 8 through the oil outlet 9 into the inside of the slide groove 2. After contacting the roller 13, it increases the lubrication between the roller 13 and the slide groove 2, reduces friction, and makes the sliding door 10 quiet when pushed.
[0026] Among them, the bottom of the upper rail 1 is provided with a sliding door 10, and a fixing block 11 is fixedly installed above the sliding door 10. A connecting shaft 12 is fixedly installed inside the fixing block 11. Rollers 13 are rotatably connected to both the front and rear ends of the connecting shaft 12, and the rollers 13 are located inside the connecting shaft 12.
[0027] The main function of the roller 13 is to facilitate the installation of the sliding door 10, and to drive the sliding door 10 to move by rotating it with the slide rail 2, so that the sliding door 10 can close and open.
[0028] There are two sliding doors 10. Both sliding doors 10 are located at the bottom of the upper rail 1 and are distributed in a front-to-back position. The first sealing strip 14 is fixedly installed at the left front position of the sliding door 10 located at the rear, and the second sealing strip 15 is fixedly installed at the right rear position of the sliding door 10 located at the front. The first sealing strip 14 and the second sealing strip 15 are in a close fit.
[0029] The main function of the first sealing strip 14 and the second sealing strip 15 is to seal the junction of the two sliding doors 10 when they are stretched in opposite directions, thereby improving wind and water resistance and sound insulation, and enhancing the overall sealing performance.
[0030] The bottom of the sliding door 10 is provided with a lower slide rail 16, and the bottom of the lower slide rail 16 is provided with a second slide groove 17. A slider 18 is slidably connected inside the second slide groove 17. There are two second slide grooves 17, which are located at the bottom of the two sliding doors 10 respectively. There are two sliders 18, which are fixedly connected to the two sliding doors 10 respectively.
[0031] The main function of the two slide grooves 17 is to allow the two sliders 18 to slide inside, so that the two sliding doors 10 can slide easily while providing a certain degree of support and limiting effect, thus ensuring the overall stability of the sliding doors 10.
[0032] Each of the two sliders 18 has a connecting plate 19 fixedly installed at its bottom. A soft brush 20 is fixedly installed at the bottom of the connecting plate 19. The soft brush 20 is located inside the lower slide rail 16 and contacts the inner cavity of the lower slide rail 16.
[0033] When the two sliding doors 10 slide inside the two slide grooves 17 via the two sliders 18, the soft brush 20 comes into contact with the inside of the slide rail 16, thereby cleaning the dust inside the slide rail 16 and preventing the dust accumulation from affecting the sliding of the two sliders 18 inside the two slide grooves 17.
[0034] There are two connecting plates 19, which are located at the bottom of the two sliders 18 respectively. There are multiple soft brushes 20, which are located at the bottom of the two connecting plates 19 respectively. The sliding rail 16 has cleaning holes 21 inside.
[0035] Multiple soft brushes 20 are distributed inside the lower slide rail 16. After cleaning the dust inside the lower slide rail 16, the dust will accumulate on the left and right sides of the lower slide rail 16. At this time, the dust can be swept out from the inside of the cleaning hole 21 by using a tool, so as to keep the inside of the lower slide rail 16 clean.
[0036] There are multiple mounting slots 4 and multiple storage compartments 5, all of which are located above slide 2. There are multiple guide slots 8, all of which are located inside slide 2.
[0037] The main function of the multiple mounting slots 4 and multiple storage compartments 5 is to facilitate the lubrication of the rollers 13 inside the slide 12 at multiple angles, thereby reducing the rolling friction between the rollers 13 and the slide 12.
[0038] There are four fixing blocks 11 and four connecting shafts 12. The four fixing blocks 11 and four connecting shafts 12 are located above the two sliding doors 10 respectively. There are multiple rollers 13, and the multiple rollers 13 are located inside the upper rail 1.
[0039] There are multiple airbags 7, all located below multiple storage chambers 5. The interior of each airbag 7 is hollow. When multiple rollers 13 roll, they will compress the airbags 7, causing the airbags 7 to compress the interior of the storage chambers 5. This facilitates the flow of lubricating oil from the oil outlet 9 into the guide groove 8, and then to the bottom of the slide groove 2, achieving the lubrication effect.
[0040] Working principle and usage process of this utility model:
[0041] First, the sliding door 10 is installed below the upper hanging rail 1 by the rolling action of the roller 13 and the slide rail 2, and the left and right sides of the upper hanging rail 1 are sealed at the same time.
[0042] At this time, since a storage chamber 5 is provided inside the mounting groove 4, and an airbag 7 and an oil outlet 9 are fixedly installed at the bottom of the storage chamber 5, and the oil outlet 9 is located inside the guide groove 8, when the roller 13 rolls inside the slide groove 2, it will drive the sliding door 10 to move. Since the sliding door 10 is heavy, it will exert a downward pulling force on the roller 13. At this time, the friction between the roller 13 and the slide groove 2 will increase. When the roller 13 rolls inside the slide groove 2, it will squeeze the airbag 7, causing the airbag 7 to deform and squeeze the inside of the storage chamber 5. At this time, the lubricating oil inside the storage chamber 5 will flow into the inside of the slide groove 2 through the oil outlet 9 along the guide groove 8, thereby lubricating the surface of the roller 13. At the same time, since a baffle 3 is fixedly installed inside the slide groove 2, the baffle 3 seals the inside of the slide groove 2, thereby achieving the effect of storing the lubricating oil inside the upper rail 1, which reduces the friction.
[0043] Finally, after the sliding door 10 is installed, a lot of dust will enter the interior of the lower slide rail 16. When the sliding door 10 is moved by the rolling action of the roller 13 and the first slide rail 2, the slider 18 will move with the sliding action of the second slide rail 17. At the same time, the soft brush 20 at the bottom will brush inside the lower slide rail 16, sweeping the dust inside the lower slide rail 16 to the left and right sides, and then removing it through the cleaning hole 21, thereby achieving a certain dust removal effect.
[0044] 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.
[0045] 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 sliding door with reduced friction of the sliding rails, comprising an upper hanging rail (1), characterized in that: The inside of the upper hanging rail (1) is provided with a sliding groove one (2), the inside of the sliding groove one (2) is fixedly provided with a baffle (3), the inside of the upper hanging rail (1) is provided with a mounting groove (4), the inside of the mounting groove (4) is provided with a storage bin (5), the bottom of the storage bin (5) is fixedly provided with an air bag (7) and an oil outlet hole (9), the bottom of the mounting groove (4) is fixedly provided with a positioning plate (6), the air bag (7) is located in the inside of the positioning plate (6), the inside of the sliding groove one (2) is provided with a guide groove (8), the oil outlet hole (9) is located in the inside of the guide groove (8), and the storage bin (5) is located above the air bag (7).
2. A sliding door according to claim 1, characterized in that: The bottom of the upper hanging rail (1) is provided with a sliding rail (10), the top of the sliding rail (10) is fixedly provided with a fixed block (11), the inside of the fixed block (11) is fixedly provided with a connecting shaft (12), and the front and rear ends of the connecting shaft (12) are rotatably connected with rollers (13).
3. A sliding door according to claim 2, characterized in that: The sliding rail (10) has two, and the two sliding rails (10) are located at the bottom of the upper hanging rail (1) and are distributed in front and back positions, the left front position of the sliding rail (10) located at the rear is fixedly provided with a first sealing strip (14), the right rear position of the sliding rail (10) located at the front is fixedly provided with a second sealing strip (15), and the first sealing strip (14) and the second sealing strip (15) are in a form of adhesion.
4. A sliding door according to claim 2, wherein: The bottom of the sliding rail (10) is provided with a lower sliding rail (16), the bottom of the lower sliding rail (16) is provided with a sliding groove two (17), the inside of the sliding groove two (17) is slidably connected with a sliding block (18), the sliding groove two (17) has two, and the two sliding grooves two (17) are located at the bottom of the two sliding rails (10), respectively, the sliding block (18) has two, and the two sliding blocks (18) are fixedly connected with the two sliding rails (10), respectively.
5. A sliding door according to claim 4, characterized in that: The bottom of the sliding block (18) is fixedly provided with a connecting plate (19), the bottom of the connecting plate (19) is fixedly provided with a soft brush (20), and the soft brush (20) is located in the inside of the lower sliding rail (16) and contacts the inner cavity of the lower sliding rail (16).
6. A sliding door according to claim 5, characterized in that: The connecting plate (19) has two, and the two connecting plates (19) are located at the bottom of the two sliding blocks (18), respectively, the soft brush (20) has a plurality of, and the plurality of soft brushes (20) are located at the bottom of the two connecting plates (19), respectively, and the inside of the lower sliding rail (16) is provided with a cleaning hole (21).
7. A sliding door according to claim 1, characterized in that: The mounting groove (4) and the storage bin (5) have a plurality of, the plurality of mounting grooves (4) and the plurality of storage bins (5) are located above the sliding groove one (2), the guide groove (8) has a plurality of, and the plurality of guide grooves (8) are located in the inside of the sliding groove one (2).
8. A sliding door according to claim 2, wherein: Said fixed block (11) and connecting shaft (12) are four, four said fixed block (11) and four said connecting shaft (12) are located above two said sliding door (10), said roller (13) has a plurality of, a plurality of said roller (13) are located inside the upper hanging rail (1).