CN216534498U

CN216534498U - Three-section heavy-load telescopic sliding rail with reinforced limiting block

Info

Publication number: CN216534498U
Application number: CN202122923663.9U
Authority: CN
Inventors: 王孝保
Original assignee: Luolong Robot Shanghai Co ltd
Current assignee: Luolong Robot Shanghai Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-17
Anticipated expiration: 2031-11-26

Abstract

The utility model relates to a three-section heavy-load telescopic sliding rail with a reinforced limiting block, which comprises two C-shaped rails, wherein the bottom surfaces of the two C-shaped rails are connected and then are in an I shape, a solid slide block is arranged in each C-shaped track, a retainer is arranged between each solid slide block and the C-shaped track, steel balls are embedded on the retainer and roll in a cylindrical track formed between the solid slide blocks and the C-shaped track, the end that stretches out at every C type track bottom surface is equipped with first track stopper, is equipped with second track stopper at every C type track bottom surface stroke end, and the end at every solid slider back is equipped with the slider stopper, and the height of first track stopper is greater than the shortest distance of slider stopper apart from C type track bottom surface, and the height of first track stopper is less than the distance of solid slider back distance C type track bottom surface, and the height of second track stopper is greater than the distance of solid slider back distance C type track bottom surface. The device has the characteristics of compact structure, high load capacity, high safety factor and the like.

Description

Three-section heavy-load telescopic sliding rail with reinforced limiting block

Technical Field

The utility model relates to a sliding rail, in particular to a three-section heavy-load telescopic sliding rail with a reinforced limiting block.

Background

The telescopic sliding rail is also called a drawer sliding rail and a drawer guide rail, and refers to a metal rail with one end installed on a fixed surface and the other end installed on a drawer type structural member needing to perform linear translation, so as to achieve sliding guide and bear load. Generally, the anti-falling device comprises an inner side fixed rail and an outer side fixed rail which are formed by bending steel sheets with smaller thickness, a metal or nonmetal ball retainer, metal balls, a plastic anti-falling limiting device, a damping device and the like. The drawer is widely applied to the drawing-out and withdrawing parts of wooden and steel drawers or cabinet plates of furniture, office supplies, document cabinets and the like.

The slide rail has the following defects due to the limitation of the characteristics of raw materials and the production and processing technology:

a. the steel sheets for manufacturing the inner and outer fixed rails have small thickness, poor rigidity and low load capacity, cannot bear axial (horizontal) load, and can generate large swinging amount under the action of axial impact force during complete stretching, so that the deformation and damage of a rail structure are easily caused, and the stability and the reliability of the whole drawer system are influenced.

b. Because of the thickness of the inner and outer fixed rails, in the case of larger load bearing, the requirement can only be met by increasing the section of the rail, which results in that the installation size of the rail becomes larger, and thus more installation space is required.

c. Also, the raceway surface (rolling contact surface of the ball) cannot be hardened due to the thickness of the inner and outer fixed rails, which results in low hardness of the raceway surface and poor wear resistance, and local deformation when subjected to a large external force, thereby reducing the safety factor and the service life of the entire slide rail.

d. The non-metallic cage cannot withstand frequent movement due to the characteristics of the material itself, and is easily deformed and damaged in a high-temperature environment.

e. Conventional metal/nonmetal stopper because the size is less and fixed mode, only can bear very little impact force, when the slide rail bears the load and stretches or close, can produce very big impact force to the stopper, if do not have outside safeguard measure, lead to the stopper to warp and damage very easily, lose normal function, bring the potential safety hazard.

In conclusion, the drawer-type slide rail can only be used for wooden and steel drawer structures of civil furniture products such as furniture, office supplies, document cabinets and the like with lower load and shorter service life. With the development of mechanical technology, the automation degree is deepened, and industries such as industrial automation, rail transit, intelligent logistics, medical instruments, special vehicles and the like also increasingly use mechanical structures similar to drawer type to realize various functions. The specifications and standards of the industries are more strict, the conventional drawer type sliding rail cannot meet the requirements, and a stronger, safe and reliable sliding rail is urgently needed to meet the requirements of the industries.

Disclosure of Invention

The utility model aims to provide a three-section heavy-load telescopic sliding rail with a reinforced limiting block, which has the advantages of compact structure, high load capacity, capability of bearing great impact force, high safety factor and long service life.

In order to achieve the aim, the three-section heavy-load telescopic sliding rail with the reinforced limiting block comprises two C-shaped rails, the bottom surfaces of the two C-shaped rails are connected and then are in an I shape, a solid slide block is arranged in each C-shaped track, a retainer is arranged between each solid slide block and the C-shaped track, steel balls are embedded on the retainer and roll in a cylindrical track formed between the solid slide blocks and the C-shaped track, the end that stretches out at every C type track bottom surface is equipped with first track stopper, is equipped with second track stopper at every C type track bottom surface stroke end, and the end at every solid slider back is equipped with the slider stopper, and the height of first track stopper is greater than the shortest distance of slider stopper apart from C type track bottom surface, and the height of first track stopper is less than the distance of solid slider back distance C type track bottom surface, and the height of second track stopper is greater than the distance of solid slider back distance C type track bottom surface.

The width of the first track limiting block and the width of the second track limiting block are smaller than the width of the bottom surface of the C-shaped track, and the width of the first track limiting block and the width of the second track limiting block are larger than half of the width of the bottom surface of the C-shaped track.

The length of the first track limiting block is half of that of the second track limiting block.

The first track limiting block is 2-3cm away from the end face of the C-shaped track, and the end face of the second track limiting block is aligned with the end face of the C-shaped track.

The width of the sliding block limiting block is smaller than that of the first track limiting block, and the width of the sliding block limiting block is larger than half of the width of the bottom surface of the C-shaped track.

The shapes of the sliding block limiting block, the first track limiting block and the second track limiting block are cuboids.

The length of the slide block limiting block is larger than that of the second track limiting block.

The utility model has the advantages and effects that: due to the adoption of the cuboid-shaped slider limiting block, the first track limiting block and the second track limiting block, the safe operation of the sliding rail is ensured when the solid slider generates huge impact force.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

FIG. 3 is a schematic view of the C-shaped track of the present invention.

Fig. 4 is a schematic view of the solid slide rail of the present invention.

FIG. 5 is a schematic view of the retainer and the steel balls of the present invention.

In the figure: 1. a C-shaped track; 2. a threaded mounting hole; 3. a solid slider; 4. a guide groove; 5. a holder; 6. steel balls; 11. a first rail stopper; 12. a second rail stopper; 31. a slide block limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the figure, the three-section heavy-load telescopic slide rail with the reinforced limit blocks comprises two C-shaped rails 1, the bottom surfaces of the two C-shaped rails 1 are I-shaped after being connected, a solid slider 3 is arranged in each C-shaped rail 1, a retainer 5 is arranged between each solid slider 3 and the C-shaped rail 1, steel balls 6 are embedded on the retainer 5, the steel balls 6 roll in a cylindrical runway formed between the solid sliders 3 and the C-shaped rails 1, a first rail limit block 11 is arranged at the extending end of the bottom surface of each C-shaped rail 1, a second rail limit block 12 is arranged at the tail end of the bottom surface stroke of each C-shaped rail 1, a slider limit block 31 is arranged at the tail end of the back surface of each solid slider 3, the height of the first rail limit block 11 is larger than the shortest distance from the slider limit block 31 to the bottom surface of the C-shaped rail 1, the height of the first rail limit block 11 is smaller than the distance from the back surface of the solid slider 3 to the bottom surface of the C-shaped rail 1, the height of the second track limiting block 12 is larger than the distance from the back of the solid sliding block 3 to the bottom surface of the C-shaped track 1.

The width of the first track limiting block 11 and the second track limiting block 12 is smaller than the width of the bottom surface of the C-shaped track 1, and the width of the first track limiting block 11 and the width of the second track limiting block 12 are larger than half of the width of the bottom surface of the C-shaped track 1.

The length of the first rail limiting block 11 is half of the length of the second rail limiting block 12.

The first track limiting block 11 is 2-3cm away from the end face of the C-shaped track 1, and the end face of the second track limiting block 12 is aligned with the end face of the C-shaped track.

The width of the slider limiting block 31 is smaller than that of the first track limiting block 11, and the width of the slider limiting block 31 is larger than half of the width of the bottom surface of the C-shaped track 1.

The slider limiting blocks 31, the first track limiting blocks 11 and the second track limiting blocks 12 are cuboid.

The length of the slider stopper 31 is greater than that of the second rail stopper 12.

Two C-shaped rails are connected back to back in a riveting mode to form an I-shaped middle connecting part for connecting two solid sliding blocks; and two sides of each C-shaped track are respectively provided with a limiting block mounting hole for fixing the steel cuboid limiting block. The solid slider is located orbital inboard, and a plurality of standard screw thread mounting holes 2 of evenly distributed on the geometric centre line of solid slider for with installation face and moving part's fixed, the bottom surface has set up one and has run through whole track guide way 4 in the C type track, both can be used for confirming the installation direction when the installation track, also can regard as the guiding gutter to use.

Claims

1. The three-section heavy load telescopic slide rail with the reinforced limit block is characterized by comprising two C-shaped rails, the bottom surfaces of the two C-shaped rails are connected and then are in an I shape, a solid slide block is arranged in each C-shaped track, a retainer is arranged between each solid slide block and the C-shaped track, steel balls are embedded on the retainer and roll in a cylindrical track formed between the solid slide blocks and the C-shaped track, the end that stretches out at every C type track bottom surface is equipped with first track stopper, is equipped with second track stopper at every C type track bottom surface stroke end, and the end at every solid slider back is equipped with the slider stopper, and the height of first track stopper is greater than the shortest distance of slider stopper apart from C type track bottom surface, and the height of first track stopper is less than the distance of solid slider back distance C type track bottom surface, and the height of second track stopper is greater than the distance of solid slider back distance C type track bottom surface.

2. The three-section heavy load telescopic sliding rail with the reinforced limiting block as claimed in claim 1, wherein the width of the first rail limiting block and the second rail limiting block is smaller than the width of the bottom surface of the C-shaped rail, and the width of the first rail limiting block and the second rail limiting block is greater than half of the width of the bottom surface of the C-shaped rail.

3. The three-section heavy load telescopic sliding rail with the reinforced limiting stopper as claimed in claim 2, wherein the length of the first rail limiting stopper is half of the length of the second rail limiting stopper.

4. The three-section heavy load telescopic sliding rail with the reinforced limit block as claimed in claim 3, wherein the distance between the first rail limit block and the end face of the C-shaped rail is 2-3cm, and the end face of the second rail limit block is aligned with the end face of the C-shaped rail.

5. The three-section heavy load telescopic sliding rail with the reinforced limit block as claimed in claim 1, wherein the width of the slider limit block is smaller than that of the first rail limit block, and the width of the slider limit block is greater than half of the width of the bottom surface of the C-shaped rail.

6. The three-section heavy-duty telescopic sliding rail with the reinforced limiting stopper as claimed in claim 1, wherein the slider limiting stopper, the first rail limiting stopper and the second rail limiting stopper are rectangular parallelepiped in shape.

7. The three-section heavy load telescopic sliding rail with the reinforced limit block according to claim 6, wherein the length of the slider limit block is greater than the length of the second rail limit block.