Sliding rail structure convenient to unfold
By cold-bending arc-shaped grooves and "S"-shaped side walls in the slide rail structure, adding auxiliary positioning points for the ball strips, and using aluminum alloy materials and limit sockets, the existing slide rails have solved the problem of insufficient rigidity and usage. The problem of short life is achieved by achieving higher overall rigidity and service life.
Patent Information
- Application Number
- CN202420698122.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-07
AI Technical Summary
After long-term use of existing slides, balls are prone to falling off and deforming, resulting in insufficient overall rigidity and affecting service life.
Design a sliding rail structure that is convenient for development. By formulating arc grooves and "S" side walls on the track, adding auxiliary positioning points to rolling bead strips, enhancing the overall rigidity, and through aluminum alloy materials and limit positions Site design and other design to improve the self -locking function and service life.
It effectively improves the overall rigidity of the slide rail, reduces the phenomenon of ball shedding and deformation, extends the service life, and improves the strength and use effect of the slide rail without adding additional costs.
Smart Images
Figure CN222382868U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drawer slide rails, in particular to a slide rail structure which is easy to unfold. Background Art
[0002] Slide rails are widely used in industrial, commercial and civil drawers, pull-out baskets and display cabinets. The commonly used three-section slide rails are mainly composed of outer rails, middle rails and core rail sliding components. They slide against each other and open and close freely under the action of pulling or pushing.
[0003] Current slide rails generally include ball bearing bars, which are used to facilitate overall deployment and sliding operations. The balls on the ball bearing bars are in contact with the track at two points, resulting in insufficient overall rigidity. After long-term use, the guide rail balls are prone to fall off, or even the entire rail may deform, affecting its use. Utility Model Content
[0004] The purpose of the utility model is to provide a slide rail structure that is easy to unfold in order to solve the above-mentioned problem.
[0005] The technical solution adopted by the utility model is as follows: a slide rail structure that is easy to unfold, comprising a slide rail body formed by splicing an outer rail, a middle rail and an inner rail, and ball bearing strips for guiding sliding are provided on both sides between the outer rail and the middle rail and between the middle rail and the inner rail;
[0006] The two side walls of the middle rail are cold-bent into an "S" shape, and the outer rail and the inner rail are cold-bent to form inward and outward arc grooves respectively.
[0007] In a preferred embodiment, the upper end surface of the outer rail is bent inwardly to form a flange.
[0008] In a preferred embodiment, a blocking plate is installed at the tail end of the outer rail, and positioning frames with accommodating cavities are installed at both ends of the inner wall of the blocking plate. Springs are installed inside the accommodating cavities of the positioning frames, and round balls are provided on opposite sides of the two springs.
[0009] In a preferred embodiment, the outer rail, the middle rail and the inner rail are all made of aluminum alloy.
[0010] In a preferred embodiment, a limit socket is installed at the tail end of the inner rail, the end face of the limit socket is spherical, and both sides of the connection between the limit socket and the inner rail are recessed inward to form a groove for inserting the ball.
[0011] In a preferred embodiment, a cavity for guiding and installing a ball bar is formed between the arc-shaped groove and the side wall of the middle rail.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0013] 1. In the utility model, a cavity is formed on the track by cold bending to assist the positioning of the ball bar. After the above design, the contact surface between the ball and the inner wall of the track is large and the ball bar can be moved and assisted in positioning, so that the overall rigidity is better, the ball is not easy to fall off and deform, and the overall service life is improved;
[0014] 2. In the present invention, the arc surface formed by overall cold pressing can also be used as the reinforcing rib of the track itself, with higher overall strength and less prone to deformation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the overall side plan structure of the utility model;
[0017] Figure 3 It is a schematic diagram of the overall cross-sectional plan structure of the utility model;
[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at a.
[0019] Markings in the figure: 1-inner rail, 2-ball bar, 3-outer rail, 301-arc groove, 4-middle rail, 5-cavity, 6-blocking plate, 7-positioning frame, 8-limiting socket, 9-groove, 10-round ball, 11-spring. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] Reference Figure 1-4 A slide rail structure that is easy to unfold, including a slide rail body formed by splicing an outer rail 3, a middle rail 4 and an inner rail 1. Ball bars 2 for guiding sliding are provided on both sides between the outer rail 3 and the middle rail 4 and between the middle rail 4 and the inner rail 1. The ball bars 2 can play an auxiliary guiding role for the mutual unfolding of the rails, which can facilitate the free unfolding and closing of the rails.
[0022] Furthermore, the two side walls of the middle rail 4 are cold-bent into an "S" shape, and the outer rail 3 and the inner rail 1 are cold-bent to form inward and outward arc grooves 301 respectively, and a cavity 5 for guiding the installation of the ball bar 2 is formed between the arc groove 301 and the side wall of the middle rail 4, and a cavity 5 for assisting the positioning of the ball bar 2 is cold-bent on the rail. After the above design, the ball has more contact surfaces with the inner wall of the rail, and can assist the movement and positioning of the ball bar 2, thereby making the overall rigidity better and preventing the ball from falling off and deforming.
[0023] In addition, the integrally formed arc groove 301 can also be used as a reinforcing rib of the track itself, which has a higher overall strength and a better overall use effect without increasing additional costs.
[0024] Furthermore, the upper end surface of the outer rail 3 is bent inwardly to form a flange, wherein the flange can also serve as an auxiliary reinforcement rib.
[0025] Furthermore, a blocking plate 6 is installed at the tail end of the outer rail 3, and a positioning frame 7 with a accommodating cavity is installed at both ends of the inner wall of the blocking plate 6. A spring 11 is installed inside the accommodating cavity of the positioning frame 7, and balls 10 are provided on opposite sides of the two springs 11. A limiting socket 8 is installed at the tail end of the inner rail 1. The end face of the limiting socket 8 is in the shape of a spherical ball, and the two sides of the connection between the limiting socket 8 and the inner rail 1 are recessed inward to form a groove 9 for the insertion of the ball 10. When the inner rail 1 is pushed into the outer rail 3, the limiting socket 8 applies pressure to the ball 10 during the pushing process, so that the ball 10 expands to both sides until the groove 9 is aligned with the ball 10. The ball 10 will reset outward due to lack of pressure and be stuck in the groove 9, so that the slide rail part can be positioned, so that the slide rail itself has a certain self-locking function.
[0026] Furthermore, the outer rail 3, the middle rail 4 and the inner rail 1 are all made of aluminum alloy material. The whole is made of aluminum alloy material, which has strong corrosion resistance and good strength. While ensuring the overall service life, the cost is relatively low.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A slide rail structure that is easy to deploy, comprising a slide rail body formed by splicing an outer rail, a middle rail and an inner rail, characterized in that: Ball bars for guiding sliding are provided on both sides between the outer rail and the middle rail and between the middle rail and the inner rail; The two side walls of the middle rail are cold-bent into an "S" shape, and the outer rail and the inner rail are cold-bent to form inward and inward arc grooves respectively; A blocking plate is installed at the tail end of the outer rail, and positioning frames with accommodating cavities are installed at both ends of the inner wall of the blocking plate. A spring is installed inside the accommodating cavity of the positioning frame, and balls are provided on opposite sides of the two springs. A limiting socket is installed at the tail end of the inner rail, and the end face of the limiting socket is in the shape of a spherical ball. The two sides of the connection between the limiting socket and the inner rail are recessed inward to form grooves that can accommodate the insertion of the balls.
2. The slide rail structure that is easy to deploy as claimed in claim 1, characterized in that: The upper end surface of the outer rail is bent inwardly to form a flange.
3. The slide rail structure that is easy to deploy as claimed in claim 1, characterized in that: The outer rail, the middle rail and the inner rail are all made of aluminum alloy.
4. The slide rail structure that is easy to deploy as claimed in claim 1, characterized in that: A cavity for guiding and installing a ball bar is formed between the arc groove and the side wall of the middle rail.