Sliding rail structure of pull basket

Abstract

The utility model relates to the technical field of sliding rails, in particular to a pull basket sliding rail structure, which comprises a lower rail, a middle rail and an upper rail which are sequentially arranged from bottom to top, and is characterized by further comprising a first ball frame, a second ball frame, a first sliding rail, a second sliding rail, a third ball frame and a fourth ball frame, and the first ball frame is arranged between the upper rail and the middle rail and is in sliding connection with the upper rail; the second ball frame is arranged between the middle rail and the lower rail and is in sliding connection with the lower rail; the lock catch is fixedly arranged on the middle rail and connected with the first bead frame and the second bead frame in a clamped mode. And the gear part is rotatably arranged between the lock catch and the middle rail and is in meshed connection with the first bead frame and the second bead frame. The pull basket sliding rail structure has the advantages of being stable in operation, firm and durable.

Description

Technical Field

[0001] The utility model relates to the technical field of slide rails, and more particularly to a pull-out basket slide rail structure. Background Art

[0002] A pull-out basket, a storage device that can be pulled out and pushed in, is used to store items such as food, tableware, and clothing. It provides ample storage space, improving living efficiency and space utilization. The pull-out basket is connected to the home cabinet via rails, which bear the basket's weight and guide its movement. The quality of these rails directly impacts the user experience and lifespan of the basket.

[0003] Pull-out basket slides come in a variety of structures, including roller-type, steel ball-type, saddle-type, and damping slides. Saddle-type slides are widely used due to their stealth, aesthetics, and smooth sliding. However, they still suffer from several drawbacks: a lack of a stable and effective connection between the two bead rails, and a large gap between the upper and lower rails. During operation, the two bead rails can become disconnected, and even break and damage during vigorous pushing and pulling, impacting the stability and durability of the slide. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a pull-out basket slide rail structure that has the advantages of stable operation, firmness and durability.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a pull-out basket slide rail structure, comprising a lower rail, a middle rail and an upper rail arranged in sequence from bottom to top, and further comprising:

[0006] a first bead rack, disposed between the upper rail and the middle rail, and slidably connected to the upper rail;

[0007] a second bead rack, disposed between the middle rail and the lower rail, and slidably connected to the lower rail;

[0008] The lock buckle is fixed on the middle rail and is engaged with the first bead rack and the second bead rack.

[0009] The gear part is rotatably arranged between the lock buckle and the middle rail, and is meshed and connected with the first bead rack and the second bead rack.

[0010] In one embodiment, the first bead frame is provided with a first card slot, the lock buckle is provided with a corresponding first card buckle, and the first card slot is engaged with the first card buckle;

[0011] The second bead frame is provided with a second card slot, the lock buckle is provided with a corresponding second card buckle, and the second card slot is engaged with the second card buckle.

[0012] In one embodiment, the first bead rack is provided with a first sliding rack, and the first sliding rack is meshedly connected with the gear portion;

[0013] The second bead rack is provided with a second sliding rack, and the second sliding rack is meshedly connected with the gear portion.

[0014] In one embodiment, a first rack is provided on the upper rail, a first gear is rotatably provided on the top of the first bead rack, and the first gear is meshed and connected with the first rack;

[0015] A second rack is provided on the lower rail, and a second gear is rotatably provided on the bottom of the second bead rack. The second gear is meshed and connected with the second rack.

[0016] In one embodiment, a first clamping member is provided on the first rack, a corresponding first buckle position is provided on the upper rail, and the first clamping member is engaged with the first buckle position;

[0017] The second rack is provided with a second clamping piece, the lower rail is provided with a corresponding second buckle position, and the second clamping piece is clamped with the second buckle position.

[0018] In one embodiment, the first bead rack is provided with a first meshing wheel, and the first meshing wheel is provided on both sides of the first gear, and the two first meshing wheels abut against the side wall of the upper rail;

[0019] The second bead rack is provided with a second meshing wheel, and the second meshing wheel is provided on both sides of the second gear, and the two second meshing wheels are in contact with the side wall of the lower rail.

[0020] In one embodiment, the first bead rack is provided with a first side roller and a first upper roller, the first upper roller abuts against the upper rail and the middle rail, and the first side roller abuts against the upper rail and the middle rail;

[0021] The second bead rack is provided with a second side roller and a second upper roller, the second side roller abuts against the lower rail and the middle rail, and the second upper roller abuts against the lower rail and the middle rail.

[0022] In one embodiment, a damping and buffering device is further included, which is connected to the upper rail through a connecting piece. An installation buckle is provided on the outer side of the lower rail, and the damping and buffering device is provided with a corresponding installation buckle. The installation buckle is engaged with the installation buckle to install the damping and buffering device.

[0023] In one embodiment, the first angle code, the second angle code and the third angle code are welded to the bottom of the lower rail, and the first angle code and the second angle code are both engaged with the damping and buffering device.

[0024] In one embodiment, the gear portion is riveted to the middle rail by rivets.

[0025] The above pull-out basket slide rail structure has the following beneficial effects:

[0026] First, by providing a lock and a gear part, a stable sliding connection relationship is maintained between the first bead rack and the second bead rack, and the first bead rack and the second bead rack are prevented from breaking when pushed and pulled vigorously, thereby improving the stability and durability of the pull-out basket slide rail.

[0027] Secondly, by arranging the first rack, the first gear, the second rack and the second gear, the upper rail and the first bead rack, and the lower rail and the second bead rack can be stably slidably connected, further improving the stability of the pull-out basket slide rail operation.

[0028] Thirdly, by providing the first and second meshing wheels, the stability of the sliding connection between the upper rail and the first bead rack and between the lower rail and the second bead rack is enhanced, thereby further improving the stability of the operation of the pull-out basket slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of this embodiment;

[0030] Figure 2 Schematic diagram of the explosion structure of this embodiment;

[0031] Figure 3 Schematic diagram of the assembly structure of the middle rail, gear portion, rivets and lock buckle of this embodiment;

[0032] Figure 4 Schematic diagram of the structure of the lock in this embodiment;

[0033] Figure 5 This is a schematic diagram of the connection structure of the first bead rack, gear part, and second bead rack of this embodiment. Figure 1 ;

[0034] Figure 6 This is a schematic diagram of the connection structure of the first bead rack, gear part, and second bead rack of this embodiment. Figure 2 ;

[0035] Figure 7 Schematic diagram of the connection structure between the first bead rack and the first rack of this embodiment;

[0036] Figure 8 2 is a schematic diagram of the connection structure between the second bead rack and the second rack of this embodiment;

[0037] Figure 9 Schematic diagram of the connection structure between the upper rail and the damping buffer device of this embodiment;

[0038] Figure 10 Schematic diagram of the structure of the damping and buffering device of this embodiment.

[0039] In the figure: 1, lower rail; 11, second rack; 111, second clamping piece; 12, second buckle position; 13, mounting buckle; 2, middle rail; 3, upper rail; 31, first rack; 311, first clamping piece; 32, first buckle position; 4, first bead rack; 41, first slot; 42, first sliding rack; 43, first gear; 44, first meshing wheel; 45, first side roller; 46, first upper roller; 5, second bead rack; 51, second slot; 52, Second sliding rack; 53. Second gear; 54. Second meshing wheel; 55. Second side roller; 56. Second upper roller; 6. Lock; 61. First clip; 62. Second clip; 7. Gear portion; 71. Rivet; 8. Damping and buffering device; 81. Connecting piece; 82. Mounting buckle; 83. Damping main frame; 84. Damper; 85. Tension spring; 86. Sliding block; 87. Connecting block; 9. First angle code; 91. Second angle code; 92. Third angle code. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] 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 being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, unless otherwise specifically defined.

[0043] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0045] A pull-out basket slide rail structure, such as Figure 1 、 Figure 2 and Figure 3 As shown, it includes a lower rail 1, a middle rail 2 and an upper rail 3 arranged in sequence from bottom to top, and also includes: a first bead rack 4, which is arranged between the upper rail 3 and the middle rail 2, and is slidably connected to the upper rail 3; a second bead rack 5, which is arranged between the middle rail 2 and the lower rail 1, and is slidably connected to the lower rail 1; a lock 6, which is fixed on the middle rail 2, and is engaged with the first bead rack 4 and the second bead rack 5; a gear part 7, which is rotatably arranged between the lock 6 and the middle rail 2, and is meshed with the first bead rack 4 and the second bead rack 5.

[0046] The lower rail 1, middle rail 2 and upper rail 3 are arranged from bottom to top, and the lower rail 1 and the upper rail 3 are similar in shape and size, and the two are mirror-imaged above and below the middle rail 2; the lock buckle 6 is arranged in the center of the middle rail 2, and is fixedly connected to the middle rail 2 through a connecting part by screws, welding, pressing, etc., and the connecting part is symmetrically arranged at the left and right ends of the lock buckle 6; the size of the gear part 7 is smaller than the lock buckle 6 and is rotatably arranged between the middle rail 2 and the lock buckle 6; the first bead rack 4 is arranged between the upper rail 3 and the middle rail 2, and is in contact with the side wall of the upper rail 3 and the side wall of the middle rail 2, and the second bead rack 5 is arranged between the lower rail 1 and the middle rail 2, and is in contact with the side wall of the lower rail 1 and the side wall of the middle rail 2. The first bead rack 4 and the second bead rack 5 are similar in size and shape, and are mirror-imaged above and below the gear part 7, and are both meshed with the gear part 7 and clamped with the lock buckle 6.

[0047] The materials of the components mentioned above and below can be cold-rolled steel, stainless steel, aluminum, iron, etc., as long as they are strong, durable, and have strong pressure resistance. The shape of the lock buckle 6 is not limited here and can be an axisymmetric shape such as a cross or X shape, preferably a Z shape. The Z-shaped lock buckle 6 has better force balance. The lock buckle 6 can be solid or hollow inside. Solid lock buckles 6 are stronger and more durable, while hollow lock buckles 6 are lighter.

[0048] The utility model provides a lock buckle 6 and a gear portion 7 to maintain a stable sliding connection between the first bead rack 4 and the second bead rack 5, and can prevent the first bead rack 4 and the second bead rack 5 from breaking when pushed or pulled vigorously, thereby improving the stability and durability of the pull-out basket slide rail.

[0049] Specifically, such as Figure 4 and Figure 5 As shown, the first bead holder 4 has a first latch 41, and the lock catch 6 has a corresponding first latch 61. The first latch 41 engages with the first latch 61. The second bead holder 5 has a second latch 51, and the lock catch 6 has a corresponding second latch 62. The second latch 51 engages with the second latch 62. The first latch 41 is located at the end of the first bead holder 4 facing the center rail 2, and the second latch 51 is located at the end of the second bead holder 5 facing the center rail 2. The first latch 41 and the second latch 51 are identical in shape and size, and are spaced the same distance from the lock catch 6. The first latch 61 and the second latch 62 are symmetrically located at the upper and lower ends of the lock catch 6 and have identical shape and size. The depth and width of the first and second latches 41 and 51 should be appropriate and consistent with the shape and size of the first and second latches 61 and 62. The contact surfaces of the first latch 61, the first latch 41, the second latch 62, and the second latch 51 require proper lubrication and surface treatment to reduce friction during operation.

[0050] By providing the first card slot 41, the second card slot 51, the first clip 61 and the second clip 62, the connection between the lock buckle 6 and the first bead rack 4 and the second bead rack 5 is made more stable, and the engagement between the first bead rack 4 and the second bead rack 5 and the gear part 7 is made more stable, thereby improving the stability and durability of the operation of the pull-out basket slide rail.

[0051] Specifically, such as Figure 5 As shown, the first bead rack 4 is provided with a first sliding rack 42, which is meshed with the gear portion 7; the second bead rack 5 is provided with a second sliding rack 52, which is meshed with the gear portion 7. In this embodiment, the first sliding rack 42 is provided at the bottom of the first engaging groove 41, and the second sliding rack 52 is provided at the top of the second engaging groove 51. The first sliding rack 42 and the second sliding rack 52 are of the same size and correspond to the size of the gear portion 7, and are both tightly meshed with the gear portion 7.

[0052] Specifically, such as Figure 5 and Figure 8As shown, the upper rail 3 is provided with a first rack 31, and the top of the first bead rack 4 is rotatably provided with a first gear 43, which meshes with the first rack 31. The lower rail 1 is provided with a second rack 11, and the bottom of the second bead rack 5 is rotatably provided with a second gear 53, which meshes with the second rack 11. The first gear 43 and the first bead rack 4, and the second gear 53 and the second bead rack 5 can be connected by riveting, pinning, screwing, keying, or other methods, as long as they are not easily loosened and facilitate gear rotation. The first rack 31 is located at the upper end of the side wall of the upper rail 3, and the second rack 11 is located at the lower end of the bottom side wall of the lower rail 1. The first rack 31 and the first gear 43, the second rack 11, and the second gear 53 are all positioned and sized to correspond, and they are all tightly meshed.

[0053] By providing the first rack 31, the first gear 43, the second rack 11 and the second gear 53, the upper rail 3 and the first bead rack 4, the lower rail 1 and the second bead rack 5 can be smoothly slidably connected, and the pull-out basket slide rail can thus operate successfully.

[0054] Furthermore, if Figure 1 and Figure 5 As shown, the first rack 31 is provided with a first clip 311, and a corresponding first buckle 32 is provided on the upper rail 3, and the first clip 311 is engaged with the first buckle 32; the second rack 11 is provided with a second clip 111, and a corresponding second buckle 12 is provided on the lower rail 1, and the second clip 111 is engaged with the second buckle 12. The first clip 311 and the second clip 111 are snap-fit ​​structures. The upper rail 3 is provided with a first buckle 32 that penetrates the side wall, and the lower rail 1 is provided with a second buckle 12 that penetrates the side wall. The positions of the first buckle 32, the first clip 311, the second buckle 12, and the second clip 111 should take into account the force balance when the first rack 31 is engaged on the upper rail 3 and the second rack 11 is engaged on the lower rail 1. The number of each of the four is the same, and the specific number is not limited here. Preferably, there are three, one at each end of the length direction of the first rack 31 and the second rack 11, and one in the middle of the length direction.

[0055] Specifically, such as Figure 7 and Figure 8As shown, the first bead rack 4 is equipped with first meshing wheels 44, which are located on either side of the first gear 43. The two first meshing wheels 44 abut the side walls of the upper rail 3. The second bead rack 5 is equipped with second meshing wheels 54, which are located on either side of the second gear 53. The two second meshing wheels 54 abut the side walls of the lower rail 1. The first and second meshing wheels 44, 54 are of the same size and extend the same appropriate distance from their respective bead racks. This prevents the first rack 31 from maintaining a stable meshing connection with the first gear 43, the second rack 11, and the second gear 53 due to improper distances. It also ensures smoother sliding connections between the upper rail 3, the first bead rack 4, the lower rail 1, and the second bead rack 5. The number of first and second meshing wheels 44, 54 is even, and they are symmetrically arranged on either side of the first gear 43 and the second gear 53 along the length of their respective bead racks.

[0056] Specifically, such as Figures 5 to 8 As shown, the first bead rack 4 is equipped with a first side roller 45 and a first upper roller 46. The first upper roller 46 abuts the upper rail 3 and the middle rail 2, while the first side roller 45 abuts the upper rail 3 and the middle rail 2. The second bead rack 5 is equipped with a second side roller 55 and a second upper roller 56. The second side roller 55 abuts the lower rail 1 and the middle rail 2, while the second upper roller 56 abuts the lower rail 1 and the middle rail 2. In this embodiment, the first upper roller 46 is located at the top of the first bead rack 4, and the second upper roller 56 is located at the bottom of the second bead rack 5. The first side roller 45 and the second side roller 55 are respectively located on one side of the bead rack. The first side roller 45 and the second side roller 55 are both composed of multiple pulleys of the same shape and size arranged adjacently. The first upper roller 46 and the second upper roller 56 are also composed of multiple pulleys of the same shape and size arranged adjacently. The first side roller 45 abuts against the side walls of the upper rail 3 and the side walls of the middle rail 2, and the second side roller 55 abuts against the side walls of the lower rail 1 and the side walls of the middle rail 2. The first upper roller 46 abuts against the side walls of the upper rail 3 and the top of the middle rail 2, and the second upper roller 56 abuts against the side walls of the lower rail 1 and the bottom of the middle rail 2.

[0057] Specifically, such as Figure 2As shown, it also includes a damping and buffering device 8, which is connected to the upper rail 3 through a connecting member 81. The outer side of the lower rail 1 is provided with a mounting buckle 13, and the damping and buffering device 8 is provided with a corresponding mounting clip 82. The mounting clip 82 is engaged with the mounting buckle 13 to install the damping and buffering device 8. The connection method between the connecting member 81 and the damping and buffering device 8 and the upper rail 3 can be welding, screw fixing, clamping, etc., as long as it can be firmly connected. The connecting member 81 can also be integrally formed with the damping and buffering device 8 or the upper rail 3. The mounting buckle 82 is provided at the end of the length direction of the damping and buffering device 8, and the mounting buckle 13 is correspondingly provided at the end of the length direction of the lower rail 1. In this embodiment, the damping and buffering device 8 is a hydraulic damping and buffering device 8, which includes a damping main frame 83, a damper 84, a tension spring 85, a sliding block 86 and a connecting block 87. The connecting block 87 is connected to the above four components. When the basket is pulled out, upper rail 3 drives sliding block 86 along damping main frame 83, causing connecting block 87 to move accordingly. Connecting block 86 then drives the piston in damper 84, causing oil to flow through damper 84 and out through the damping hole, generating a damping force that absorbs the force of the pushback, thereby slowing the basket's closing speed when pushed back. During the basket closing process, connecting block 87, with the assistance of tension spring 85, drives the piston back to its initial position, preparing for the next movement.

[0058] Furthermore, if Figure 2 As shown, it also includes a first angle code 9, a second angle code 91 and a third angle code 92 welded to the bottom of the lower rail 1, and the first angle code 9 and the second angle code 91 are both engaged with the damping and buffering device 8.

[0059] Second angle bracket 91 is located between first and third angle brackets 92. These brackets securely connect the other components of the pull-out basket rail to the external furniture. They must be thick and rigid enough to withstand long-term loads, and each bracket features multiple mounting holes for screw fastening and snap-in fastening. Damping and buffering device 8 has a recessed groove, and first angle bracket 9 has a clip that mates with the recess, securing first angle bracket 9 and damping and buffering device 8. Damping and buffering device 8 also has a raised groove, and second angle bracket 91 has an opening that mates with the raised groove, securing second angle bracket 91 and damping and buffering device 8.

[0060] Specifically, such as Figure 3 As shown, the gear portion 7 is riveted to the middle rail 2 through rivets 71 so as to engage with the first sliding rack 42 and the second sliding rack 52 , and the sizes and shapes of the three correspond to each other.

[0061] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A pull-out basket slide rail structure, comprising a lower rail, a middle rail and an upper rail arranged in sequence from bottom to top, characterized in that: Also includes: a first bead rack, disposed between the upper rail and the middle rail, and slidably connected to the upper rail; a second bead rack, disposed between the middle rail and the lower rail, and slidably connected to the lower rail; A lock buckle is fixed on the middle rail and is engaged with the first bead rack and the second bead rack; The gear part is rotatably arranged between the lock buckle and the middle rail, and is meshed and connected with the first bead rack and the second bead rack.

2. The pull-out basket slide rail structure according to claim 1, characterized in that: The first bead frame is provided with a first card slot, the lock buckle is provided with a corresponding first card buckle, and the first card slot is engaged with the first card buckle; The second bead frame is provided with a second card slot, the lock buckle is provided with a corresponding second card buckle, and the second card slot is engaged with the second card buckle.

3. The pull-out basket slide rail structure according to claim 1, characterized in that: The first bead rack is provided with a first sliding rack, and the first sliding rack is meshedly connected with the gear portion; The second bead rack is provided with a second sliding rack, and the second sliding rack is meshedly connected with the gear portion.

4. The pull-out basket slide rail structure according to claim 1, characterized in that: A first rack is provided on the upper rail, and a first gear is rotatably provided on the top of the first bead rack, and the first gear is meshed and connected with the first rack; A second rack is provided on the lower rail, and a second gear is rotatably provided on the bottom of the second bead rack. The second gear is meshed and connected with the second rack.

5. The pull-out basket slide rail structure according to claim 4, characterized in that: The first rack is provided with a first clamping piece, the upper rail is provided with a corresponding first buckle position, and the first clamping piece is clamped with the first buckle position; The second rack is provided with a second clamping piece, the lower rail is provided with a corresponding second buckle position, and the second clamping piece is clamped with the second buckle position.

6. The pull-out basket slide rail structure according to claim 4, characterized in that: The first bead rack is provided with a first meshing wheel, and the first meshing wheel is provided on both sides of the first gear, and the two first meshing wheels are in contact with the side wall of the upper rail; The second bead rack is provided with a second meshing wheel, and the second meshing wheel is provided on both sides of the second gear, and the two second meshing wheels are in contact with the side wall of the lower rail.

7. The pull-out basket slide rail structure according to claim 1, characterized in that: The first bead rack is provided with a first side roller and a first upper roller, the first upper roller abuts against the upper rail and the middle rail, and the first side roller abuts against the upper rail and the middle rail; The second bead rack is provided with a second side roller and a second upper roller, the second side roller abuts against the lower rail and the middle rail, and the second upper roller abuts against the lower rail and the middle rail.

8. The pull-out basket slide rail structure according to claim 1, characterized in that: It also includes a damping and buffering device, which is connected to the upper rail through a connecting piece. The outer side of the lower rail is provided with an installation buckle. The damping and buffering device is provided with a corresponding installation buckle, and the installation buckle is engaged with the installation buckle to install the damping and buffering device.

9. The pull-out basket slide rail structure according to claim 8, characterized in that: It also includes a first angle code, a second angle code and a third angle code welded to the bottom of the lower rail, and the first angle code and the second angle code are both engaged with the damping and buffering device.

10. The pull-out basket slide rail structure according to claim 1, characterized in that: The gear portion is riveted to the middle rail through rivets.

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