Full-drawing sliding rail with buffering and limiting structure
By adopting a simplified three-section track design in the slide rail, the buffer structure of the elastic protrusion and outer slope and the limiting mechanism of the elastic sheet are solved, and the problem of the existing slide rail buffer structure is achieved. The stability of the pull-out basket is achieved and Cost reduction effect.
Patent Information
- Application Number
- CN202420998878.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The buffer structure of existing slides is complex, which makes it cost high and difficult to achieve simplified design, affecting the stability and user experience of the product.
A fully extracted slide rail including three-section tracks is designed, using the elastic protrusion on track one and the outer slope on track two as the buffer structure, and an elastic piece and a notch are provided between track two and track three as the limit structure. , through the coordination between the elastic protrusions and the outer slope and the trapping mechanism of the elastic sheet, the buffering and limiting effects are achieved, simplifying the structural design.
The buffering effect of the pull-out basket during the pulling process is achieved, and it is stuck after reaching the maximum position, ensuring the stability of the pull-out basket, avoiding accidental closures, and reducing production costs.
Smart Images
Figure CN222237164U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of slide rails, in particular to a fully pull-out slide rail with a buffering and limiting structure. Background Art
[0002] Some existing slide rails used in drawers and cabinets usually have a buffer structure to reduce the impact force when closing and pulling, such as a new type of buffer slide rail in CN220800519U. The disadvantage of the current technology is that the buffer structure is complicated. Utility Model Content
[0003] In view of the above situation, the purpose of the present invention is to provide a fully-pull-out slide rail with a buffering and limiting structure, which is simpler in structure and can greatly reduce the cost.
[0004] The direct-insertion stepper motor specifically adopts the following scheme:
[0005] The utility model comprises three sections of tracks, namely, track one, track two and track three. Track one can be connected with the pull-out basket, track three can be connected with the cabinet body, track one and track two are slidably connected, track two and track three are slidably connected, and a buffer structure is arranged between track one and track two. The buffer structure comprises an elastic protrusion arranged on track one and an outer slope portion arranged on track two. Therefore, when the pull-out basket is pulled out of the cabinet body, track one will be driven to move outward relative to track two first. When the elastic protrusion in front of track one moves to the outer slope portion of track two, it will abut against it, thereby pulling track two to move outward relative to track three.
[0006] A limiting structure is provided between track 2 and track 3, and the limiting structure includes an elastic sheet provided on track 2 and a notch provided on track 3, so that when track 2 moves outward to a certain position, the elastic sheet of track 2 will be stuck in the notch, and track 2 is limited and cannot move;
[0007] However, the track will eventually go over the outer slope due to the tension and get stuck.
[0008] Compared with the prior art, the utility model provides a buffer when the pull-out basket is pulled to a near maximum through the above-mentioned design, and can be locked after being pulled to the maximum, so that the pull-out basket is sufficiently stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 , Figure 2 It is a state diagram of the three sections of the guide rails being put together at different viewing angles of the present invention;
[0010] Figure 3 , Figure 4 It is a schematic diagram of the structure of track 2 under different viewing angles of the utility model;
[0011] Figure 5 It is a schematic diagram of the state when the track 1 drives the track 2 of the utility model, and the circle in the figure shows the specific state diagram when the elastic protrusion and the outer slope part are against each other;
[0012] Figure 6 This is a schematic diagram of the state of the second track of the utility model when it is limited;
[0013] Figure 7 for Figure 6 A partial enlarged view of the
[0014] Figure 8 This is a schematic diagram of the structure of the utility model after the track 1 and track 2 are separated;
[0015] Fig. 9 A side view schematic diagram of the utility model is shown;
[0016] Fig.10 , Fig.11 It is a schematic diagram of the structure of a limiting structure on track 1 in different viewing angles of the utility model;
[0017] Fig.12 It is a structural schematic diagram of a limiting structure on track 2 of the utility model;
[0018] Fig.13 , Fig.14 It is a schematic diagram of the rolling body state when the three-section track is opened and folded; and the figure illustrates the position of the limiting structure on track one, track two, and track three and the matching state with the corresponding rolling body;
[0019] The reference numerals in the figure are: track one 1, track two 2, plum blossom guide rail 201, groove 202, track three 3, notch 301, elastic protrusion 4, outer slope 5, elastic sheet 6, rolling body 7, ball 701, retaining frame 702, limiting structure 8, limiting structure A8A, limiting structure B8B, limiting structure C8C, limiting structure D8D, limiting structure E8E, limiting structure F8F, limiting structure G8G, limiting structure H8H. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Reference Figure 1-Figure 7A fully pull-out slide rail with a buffer limit structure shown in the figure comprises three sections of rails, namely rail 1, rail 2, and rail 3. Rail 1 is connected to a movable part, such as a pull-out basket, and rail 3 is connected to a fixed part, such as a cabinet. Rail 1 is slidably connected to rail 2, and rail 22 is slidably connected to rail 3. A buffer structure is provided between rail 1 and rail 2. The buffer structure comprises an elastic protrusion 4 arranged on rail 1, which protrudes toward the direction of rail 2, and an outer slope 5 arranged on rail 2. Therefore, when the pull-out basket is pulled out of the cabinet, rail 1 will be driven to move outward relative to rail 2. When the elastic protrusion 4 in front of rail 1 moves to the outer slope 5 of rail 2, it will resist against it (refer to Figure 5 ) thereby pulling track 2 2 to move outward relative to track 3 3;
[0022] A limiting structure is provided between the track 2 2 and the track 3 3, and the limiting structure includes an elastic sheet 6 provided on the track 2 2 and a notch 301 provided on the track 3 3, so that when the track 2 2 moves outward to a certain position, the elastic sheet 6 of the track 2 2 will be stuck in the notch 301 (refer to Figure 6 , Figure 7 ), at this time, track 2 is limited and cannot move;
[0023] However, track 1 will go over the outer slope 5 under the action of tension and get stuck.
[0024] The above design ensures that there will be a buffer when the pull-out basket is pulled to a near maximum, and the buffer here refers to the buffer formed by the cooperation of the elastic protrusion 4 and the outer slope 5; and the pull-out basket can be stuck after being pulled to the maximum, so that the pull-out basket is sufficiently stable, and the stability here refers to the stability effect formed by the elastic protrusion 4 crossing the outer slope 5 and being stuck between the track 1 1 and the track 2 2, and the stability effect formed by the elastic sheet 6 stuck in the notch 301 between the track 2 2 and the track 3 3, that is, the stability of the three-section track makes the pull-out basket sufficiently stable when it is pulled open, and will not close automatically due to accidents or improper operation.
[0025] When closing, the elastic protrusion 4 of track 1 is reversely passed over the outer slope 5 under the action of thrust, so that track 1 moves inward, and then when the front end of track 1 contacts the elastic sheet 6 of track 2, it compresses the elastic sheet 6 to deform so that the elastic sheet 6 leaves the notch 301, thereby unlocking track 2, so that track 2 can move inward.
[0026] As a preferred example, Figure 8 , Fig. 9As shown, track 2 2 is composed of two groups of plum blossom-shaped guide rails 201 symmetrically arranged in the upper and lower parts, and the plum blossom-shaped guide rail 201 is provided with four grooves 202 distributed in a rectangular shape, that is, there is a groove 202 in each of the four directions of the upper left, upper right, lower left and lower right of the plum blossom-shaped track; a rolling body 7 is respectively provided between the two groups of plum blossom-shaped guide rails 201 of track 1 1, track 3 3 and track 2 2, and the rolling body 7 is used to reduce the friction force of track 1 1 and track 2 2 when sliding.
[0027] Preferably, the rolling element 7 includes three rows of balls 701 and a retaining frame 702. The retaining frame 702 wraps part of the balls 701. The three rows of balls 701 keep in contact with three of the four grooves 202 of the plum blossom-shaped guide rail 201. The retaining frame 702 is used to guide and drive the three rows of balls 701 to roll in the correct grooves 202. At the same time, the three rows of balls 701 are combined together so that the whole is equivalent to being clamped on the plum blossom-shaped guide rail 201, so as to prevent the balls 701 from falling off from the grooves 202. On this basis, refer to Fig. 9 The two rolling bodies 7 are respectively in an inverted L shape and a positive L shape, so that the two rolling bodies 7 can be arranged on the track 2 in a staggered position, which makes the structure more compact and the space utilization rate higher. Figure 8 , Fig. 9 Track 1 1 and track 3 3 are also surrounded by the outside of their respective corresponding rolling bodies 7 to be fixed.
[0028] Furthermore, track 1 1, track 2 2, and track 3 3 are all provided with a limiting structure 8, the function of which is to prevent the rolling body 7 from falling off; specifically, the limiting structure 8 of track 1 1 and track 3 3 is formed by a pressure device applying pressure to the set position of track 1 1 / track 3 3 to deform it and form a protrusion inward (such as Fig.10 , Fig.11 ), the limiting structure 8 of the existing structure of the track 2 2 is formed by applying pressure to the set position of the track 3 3 by a pressure device to deform and extend it into the groove 202 (such as Fig.12 ). In this way, the rolling body 7 can be prevented from falling off by being blocked by the limiting structure 8; at the same time, it is also used to prevent the track 1 1 and the track 2 2 from being separated, and to prevent the track 2 2 and the track 3 3 from being separated.
[0029] Specifically, Fig.13 , Fig.14, there are limiting structures A8A and B8B on track one 1, limiting structures C8C and D8D on the upper plum blossom guide rail 201 on track two 2, limiting structures E8E and F8F on the plum blossom guide rail 201 below track two 2, and limiting structures G8G and H8H on track three 3. When the three sections of the track are fully opened, the rolling body 7 between track one 1 and track two 2 is limited between the limiting structure B8B and the limiting structure C8C, and the rolling body 7 between track two 2 and track three 3 is limited between the limiting structure F8F and the limiting structure G8G; when the three sections of the track are fully folded together, the rolling body 7 between track two 2 and track three 3 is limited between the limiting structure E8E and the limiting structure H8H.
[0030] It is necessary to explain the state in which track 1 finally passes over the outer slope 5 and gets stuck under the action of tension. The sticking here means that the rolling body 7 between track 1 and track 2 is restricted between the limiting structure B8B and the limiting structure C8C and is in the maximum stretched state, and track 1 can no longer move outward. At the same time, because the elastic buckle passes over the outer slope 5 and is blocked by the outer slope 5, track 1 cannot move inward without the action of external force.
[0031] It is also necessary to explain the state in which the elastic sheet 6 of track 2 2 is stuck in the notch 301 and track 2 2 is limited and cannot move. The inability to move here means that the rolling body 7 between track 2 2 and track 3 3 is limited between the limiting structure F8F and the limiting structure G8G, and track 2 2 is in the maximum stretched state, and track 2 2 can no longer move. At the same time, the elastic sheet 6 is stuck behind the notch so that track 2 2 can no longer move backward.
[0032] Finally, it should be noted that 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fully retractable slide rail with a buffering limit structure, comprising a track 1 (1), a track 2 (2), and a track 3 (3), wherein the track 1 (1) is slidably connected to the track 2 (2), and the track 2 (2) is slidably connected to the track 3 (3), the track 1 (1) is connected to a movable part, and the track 3 (3) is connected to a fixed part, wherein the movable part is retracted in the fixed part, and wherein: A buffer structure is provided between the track one (1) and the track two (2), the buffer structure comprising an elastic protrusion (4) arranged on the track one (1) and an outer slope portion (5) arranged on the track two (2); when the movable part is pulled out from the fixed part, the track one (1) is driven to move outward relative to the track two (2); when the elastic protrusion (4) in front of the track one (1) moves to the outer slope portion (5) of the track two (2), it abuts against it, thereby pulling the track two (2) to move outward relative to the track three (3); A limiting structure is provided between the second track (2) and the third track (3), the limiting structure comprising an elastic sheet (6) arranged on the second track (2) and a notch (301) arranged on the third track (3); when the second track (2) moves outward to a certain position, the elastic sheet (6) of the second track (2) is stuck in the notch (301) so that the second track (2) is limited and cannot move; after the second track (2) cannot move, the first track (1) will pass over the outer slope (5) under the action of a pulling force and thus be stuck.
2. The fully-extractable slide rail with a buffering and limiting structure according to claim 1, characterized in that: Track 2 (2) is composed of two groups of plum blossom-shaped guide rails (201) symmetrically arranged in the upper and lower parts, and the plum blossom-shaped guide rails (201) are provided with four grooves (202) distributed in a rectangular shape. A rolling body (7) is respectively provided between the two groups of plum blossom-shaped guide rails (201) of track 1 (1), track 3 (3) and track 2 (2), and the rolling body (7) contacts the grooves (202) of the plum blossom-shaped guide rails (201) and the inner wall of track 1 (1) / track 3 (3).
3. The fully extendable slide rail with a buffering and limiting structure according to claim 2, characterized in that: The rolling body (7) comprises three rows of balls (701) and a retaining frame (702), wherein the retaining frame (702) wraps a portion of the balls (701), and the three rows of balls (701) maintain contact with three grooves (202) of the four grooves (202) of the plum blossom-shaped guide rail (201).
4. The fully extendable slide rail with a buffering and limiting structure according to claim 3, characterized in that: The two rolling bodies (7) are distributed in a staggered manner on the second track (2).