Sectional type buffer ball slide rail structure for sliding door
By adopting a segmented buffer ball bearing slide rail structure made of metal, the problems of noise and wear of the hanging rollers are solved, the safety and wear resistance are improved, and the doors and windows can be opened normally in a fire environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-06
- Publication Date
- 2026-03-31
AI Technical Summary
The existing rollers generate noise and are prone to wear when moving on the track, and may make it difficult to open doors and windows in a fire, posing a safety hazard.
It adopts a segmented buffer ball slide rail structure, including slide rail, limiting component, ball, connecting component and derailleur. All components are made of metal. The ball is installed in the slide rail and is limited by the limiting component. The lug of the connecting component is in close contact with the ball. The access position is used to connect the buffer damper. The derailleur is used to connect the buffer damper.
It improves safety and wear resistance in high-temperature environments, avoids wear and noise problems of the hanging rollers, and ensures that doors and windows can be opened normally in a fire.
Smart Images

Figure CN116677269B_ABST
Abstract
Description
[Technical Field]
[0001] This invention mainly relates to a segmented buffer ball bearing slide rail structure for sliding doors. [Background Technology]
[0002] In products such as cabinets, wardrobes, and sliding doors, the sliding mechanism with hanging rollers has become a growing trend. The function of hanging rollers is to support the weight of doors and windows while allowing them to move easily along a track for opening and closing. Currently used hanging rollers generally consist of an outer shell, an inner shell, and pulleys. Hanging rollers generate noise when moving along the track. To ensure quiet and smooth operation, the wheel body is typically made of materials such as nylon, PC, or rubber. However, with frequent use, the wheel body is prone to wear under the weight of the window. Furthermore, the environment in which hanging rollers are used may pose a fire hazard. If, in a fire, a problem with the hanging rollers prevents doors and windows from opening, it could lead to a serious safety accident. Therefore, we propose a novel sliding structure to replace the hanging roller drive method, improving safety and slip resistance. [Summary of the Invention]
[0003] To address at least one of the aforementioned problems, this invention proposes a novel structural solution. The segmented buffer ball bearing slide rail structure of this sliding door adopts the following technical solution:
[0004] A segmented buffer ball bearing slide rail structure for sliding doors includes a slide rail, a limiting member, balls, a connecting member, and a deflector; the slide rail is provided with a guide groove, and the balls are placed in the guide groove and restricted to the slide rail by the limiting member;
[0005] The connector includes a lug and an access position. The connector is connected to a guide groove so that the lug contacts the ball. A pusher is installed in the access position so that the pusher moves together with the connector. The limiting member has a through hole. The ball is installed in the through hole and rolls freely in the through hole. The ball assists the connector in moving along the guide groove by rolling and contacting the connector.
[0006] There are several connecting parts, which are arranged in sections along the guide groove.
[0007] Preferably, the slide rail is equipped with a buffer damper, which has a bayonet. The lever is movably engaged with the bayonet along with the connecting member to drive the movable end of the buffer damper to move.
[0008] Preferably, the dialing component includes a base block and a dialing block, the dialing block being an integral structure, the dialing block being bent relative to the base block so that the dialing block of the dialing component extends out of the access position.
[0009] Preferably, the two sides of the limiting member are folded up to form a pressing edge, and the through hole is provided on the pressing edge and arranged along the pressing edge; the limiting member is placed on the slide rail so that the pressing edge abuts against the guide groove, and the ball is framed by the through hole of the pressing edge to limit the position of the ball in the guide groove.
[0010] Preferably, the slide rail includes a track and a guide groove. The track has a slot, the guide groove is inserted into the slot to be assembled on the track, and guide grooves are provided on both sides of the guide groove.
[0011] Preferably, the slot is vertically arranged, and the guide groove is inserted into the slot so that the slide rail forms upper and lower guide grooves.
[0012] Preferably, the connector includes a sliding block and a mating seat. The two sides of the sliding block are folded up to form the lugs. The connector is connected to the ball in the guide groove through the lugs. The lugs have an arc to accommodate the rolling of the ball.
[0013] Preferably, the access position extends out a stop bar to limit the toggle switch within the access position.
[0014] Preferably, the bottom end face of the access position is provided with a groove, the dial is provided with a hole, and the dial is equipped with a locking member. The locking member passes through the hole of the dial and is connected to the groove to fix the position of the dial within the access position.
[0015] The beneficial effects of this invention compared to the prior art are as follows:
[0016] This invention provides a segmented buffer ball bearing slide rail structure for sliding doors, comprising a slide rail, a limiting member, balls, a connecting member, and a lever. All components are made of metal, which, due to its extremely high melting point, is resistant to deformation even in high-temperature environments, significantly improving safety. Simultaneously, the metal balls possess high hardness, replacing traditional nylon, rubber, and PC pulleys and greatly improving wear resistance. The balls are installed within the slide rail and confined thereby by the limiting member. The connecting member's lugs are used to press against the balls, maintaining tight contact with them due to the metal's elasticity, thus preventing swaying. The connection point is used to connect to the buffer damper. The sliding block and the docking seat back box are connected so that the connection point and lugs face opposite directions, facilitating the connection of the connecting member to both the slide rail and the buffer damper. Furthermore, a lever is inserted into the docking point to connect the buffer damper. [Attached Image Description]
[0017] Figure 1 A first-view schematic diagram of the segmented buffer ball slide rail structure for sliding doors in a preferred embodiment of the present invention;
[0018] Figure 2 This is a second-view schematic diagram of the segmented buffer ball slide rail structure for sliding doors in a preferred embodiment of the present invention.
[0019] Figure 3 An exploded view of the segmented buffer ball bearing slide rail structure for sliding doors in a preferred embodiment of the present invention;
[0020] Figure 4This is a schematic diagram of the installation of the segmented buffer ball slide rail structure for sliding doors in a preferred embodiment of the present invention;
[0021] Figure 5 This is an exploded view of the connector in a preferred embodiment of the present invention;
[0022] Figure 6 A schematic diagram of the limiting element in a preferred embodiment of the present invention;
[0023] Figure 7 This is a schematic diagram of the connector in a preferred embodiment of the present invention.
Detailed Implementation Methods
[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0025] In the description of this invention, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this invention, "a number" means two or more, unless otherwise explicitly specified.
[0027] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0028] In this invention, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention.
[0030] The preferred embodiments provided by the present invention are as follows: Figures 1 to 7 As shown, a segmented buffer ball bearing slide rail structure for sliding doors includes a slide rail 1, a limiting member 3, a ball bearing 4, a connecting member 5, and a lever member 6; the slide rail 1 is provided with a guide groove 11, the ball bearing 4 is placed in the guide groove 11 and is restricted to the slide rail 1 by the limiting member 3; the number of connecting members 5 is several, and the connecting members 5 are arranged in segments along the guide groove 11.
[0031] The connector 5 includes a lug 51 and an access position 52. The connector 5 is connected to the guide groove 11 so that the lug 51 contacts the ball 4. The lever 6 is installed in the access position 52 so that the lever 6 moves together with the connector 5. The limiting member 3 is provided with a through hole 31. The ball 4 is installed in the through hole 31 and rolls freely in the through hole 31. The ball 4 rolls and contacts the connector 5 to assist the connector 5 in moving along the guide groove 11. The connector 5 includes a sliding block 53 and a docking seat 54. The sliding block 53 and the docking seat 54 are locked together by screws. The two sides of the sliding block 53 are folded up to form the lug 51. The connector 5 is connected to the ball 4 in the guide groove 11 through the lug 51. The lug 51 has an arc to adapt to the rolling of the ball 4. The lug 51 is inserted into the limiting member 3.
[0032] The toggle piece 6 includes a base block 61 and a toggle block 62. The toggle block 62 is an integral structure and is bent relative to the base block 61 so that the toggle block 62 of the toggle piece 6 extends out of the access position 52. The access position 52 extends a stop bar 55 to limit the toggle piece 6 within the access position 52. There is a gap between the stop bar 55 and the bottom end face of the access position 52. The toggle piece 6 is inserted into this gap, thereby using the stop bar 55 to limit the range of motion of the toggle piece 6, allowing the toggle piece 6 to slide along the stop bar 55. The bottom end face of the access position 52 is provided with a groove 56, and the toggle piece 6 is provided with a receiving hole 63. The toggle piece 6 is equipped with a locking member 64, which is a set screw. The locking member 64 passes through the receiving hole 63 of the toggle piece 6 and is connected to the groove 56 to fix the position of the toggle piece 6 within the access position 52.
[0033] The slide rail 1 includes a track 12 and a guide groove 13. The track 12 has a slot 14, and the guide groove 13 is inserted into the slot 14 to be assembled on the track 12. Guide grooves 11 are provided on both sides of the guide groove 13. The slot 14 is vertically arranged, and the guide groove 13 is inserted into the slot 14 so that the slide rail 1 forms upper and lower guide grooves 11. The slide rail 1 is equipped with a buffer damper 7. The buffer damper 7 adopts a conventional sliding door damper. Since sliding door dampers are widely used in door bodies, the damper structure will not be described in detail. The buffer damper 7 has a bayonet 71. The lever 6 is movably engaged with the bayonet 71 along with the connecting piece 5 to drive the movable end of the buffer damper 7 to move. The track 12 has an accessory groove 15. The accessory groove is used for sliding engagement of the buffer damper. The accessory groove is located near the slot, which facilitates the lever block of the lever to engage with the bayonet of the buffer damper.
[0034] The two sides of the limiting member 3 are folded up to form a pressing edge 32. The through hole 31 is provided on the pressing edge 32 and arranged along the pressing edge 32. The limiting member 3 is placed on the slide rail 1 so that the pressing edge 32 abuts against the guide groove 11, and the ball 4 is framed through the through hole 31 of the pressing edge 32 to limit the ball 4 in the guide groove 11. The limiting member is a metal sheet with elasticity. The two sides of the pressing edge 32 abut against the two sides of the guide groove 11 so that a gap 33 is formed between the end face of the pressing edge 32 and the guide groove 11. Part of the ball 4 in the through hole 31 is located in the guide groove 11, and the other part is exposed in the through hole 31 so as to contact the sliding member. The diameter of the ball 4 should be slightly smaller than the diameter of the through hole 31 so that the ball 4 can rotate freely. The through hole should be higher than the center of the ball to prevent the ball from falling out of the through hole.
[0035] In products such as cabinets, wardrobes, and sliding doors, the sliding mechanism with hanging rollers has become a growing trend. The function of hanging rollers is to support the weight of doors and windows while allowing them to move easily along a track for opening and closing. Currently used hanging rollers generally consist of an outer shell, an inner shell, and pulleys. Hanging rollers generate noise when moving along the track. To ensure quiet and smooth operation, the wheel body is typically made of materials such as nylon, PC, or rubber. However, with frequent use, the wheel body is prone to wear under the weight of the window. Furthermore, the environment in which hanging rollers are used may pose a fire hazard. If, in a fire, a problem with the hanging rollers prevents doors and windows from opening, it could lead to a serious safety accident.
[0036] To address the aforementioned issues, we propose a segmented ball bearing sliding rail structure for sliding doors. This structure includes a rail 1, a limiting member 3, balls 4, a connecting member 5, and a lever 6. All components are made of metal, which, due to its extremely high melting point, is resistant to deformation even in high-temperature environments, significantly improving safety. Simultaneously, the metal balls possess high hardness, replacing traditional nylon, rubber, and PC pulleys and greatly enhancing wear resistance. The balls are installed within the rail and confined within it by the limiting member. The lugs of the connecting member are used to press against the balls, maintaining tight contact with them due to the elasticity of the metal, thus preventing swaying. The connection point is used to connect to the damper. The sliding block and the docking seat back box are connected so that the connection point and lugs face opposite directions, facilitating the connection of the connecting member to both the rail and the damper. Furthermore, a lever is inserted into the docking point to connect the damper.
[0037] The limiting member is embedded in the guide groove, so that the two sides of the limiting member's lugs are pressed against the guide groove to fix the limiting member. A ball bearing is placed in the through hole of the lug, with part of the ball bearing in the empty position and the other part exposed to connect with the connecting member. The ball bearing rotates freely in the through hole of the fixed limiting member. The connecting member, as the main component for suspending the door and window, is arranged along the guide groove. Several connecting members are arranged to evenly distribute the weight of the door and window and disperse the force. In this embodiment, there are two connecting members. The opposite sides of the connecting member are respectively provided with lugs and access positions. The lugs that connect with the ball bearings have an arc to adapt to the shape of the ball bearings, facilitating sliding. When the connecting member moves, the lugs move along the guide groove and continuously press against the ball bearings in the guide groove. The ball bearings in contact with the lugs assist the moving of the connecting member by rolling, thereby achieving the sliding effect. The lever is locked in the access position by a set screw. The lever slides with the connecting member, causing the lever to engage in a locking position. A damping buffer is used to reduce the impact of movement and prevent damage to the door and window. During installation, the guide rail is mounted upside down. The end face of the connector 5 is screwed with a screw 8. The screw 8 of the connector 5 extends out of the slide rail to facilitate connection to the door and window body. The end face of the connector 8 is provided with a first lock hole 81 and a second lock hole 82. The first lock hole and the second lock hole are connected and perpendicular to each other. The second lock hole passes through both ends of the connector. The screw 83 extending out of the connector is connected to the first lock hole 81. The screw 84 connected to the second lock hole 82 is screwed in and tightens the screw 83 of the first lock hole, preventing the screw 83 from loosening.
[0038] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0039] Based on the above description of the structure and principle, those skilled in the art should understand that the present invention is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on the present invention all fall within the protection scope of the present invention and should be defined by the claims.
Claims
1. A sectional type buffer ball sliding rail structure for a sliding door, characterized by: It includes slide rail, limiting piece, ball, coupling piece and dial piece; the slide rail is provided with guide groove, the ball is placed in the guide groove and is limited in the slide rail through the limiting piece; The coupling piece includes lug and access site, the coupling piece accesses the guide groove to make the lug contact with the ball, and the dial piece is installed in the access site to make the dial piece move with the coupling piece; the limiting piece is provided with through hole, the ball is installed in the through hole and freely rolls in the through hole, and the ball contacts the coupling piece through rolling to assist the coupling piece to move along the guide groove; The number of coupling pieces is several, and the coupling pieces are arranged in sections along the guide groove; The coupling piece includes sliding block and butt joint seat, the two sides of the sliding block are folded to form the lug, the coupling piece is connected to the ball of the guide groove through the lug, and the lug has curvature to adapt to the rolling of the ball.
2. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 1, characterized in that: The slide rail is provided with buffer damper, the buffer damper has bayonet, and the dial piece is buckled in the bayonet with the coupling piece to drive the movable end of the buffer damper to move.
3. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 1, characterized in that: The dial piece includes bottom block and dial block, the dial block is of one-piece structure, and the dial block is bent relative to the bottom block to make the dial block of the dial piece extend into the access site.
4. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 1, characterized in that: The two sides of the limiting piece are folded to form the pressing edge, the through hole is arranged in the pressing edge, and the through holes are arranged along the pressing edge; the limiting piece is placed in the slide rail to make the pressing edge abut against the guide groove, and the ball in the guide groove is framed through the through hole of the pressing edge to limit the position of the ball in the guide groove.
5. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 1, characterized in that: The slide rail includes track and guide groove piece, the track is provided with clamping groove, the guide groove piece is inserted into the clamping groove to be assembled in the track, and the guide groove is arranged on the two sides of the guide groove piece.
6. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 5, wherein: The clamping groove is vertically arranged, the guide groove piece is inserted into the clamping groove to make the slide rail form upper and lower guide grooves.
7. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 1, characterized in that: The access site extends the blocking strip to limit the dial piece in the access site.
8. The sectional buffer ball bearing sliding rail structure for a sliding door according to claim 1, characterized in that: The bottom end surface of the access site is provided with groove, the dial piece is provided with access hole, the dial piece is provided with lock piece, the lock piece passes through the access hole of the dial piece and is connected to the groove to fix the position of the dial piece in the access site.
Citation Information
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Anti-derailing and anti-bouncing device
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