CN213487857U - Three-section heavy-load telescopic sliding rail - Google Patents
Three-section heavy-load telescopic sliding rail Download PDFInfo
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- CN213487857U CN213487857U CN202022233445.8U CN202022233445U CN213487857U CN 213487857 U CN213487857 U CN 213487857U CN 202022233445 U CN202022233445 U CN 202022233445U CN 213487857 U CN213487857 U CN 213487857U
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Abstract
The utility model relates to a three section heavy load retractable slide rail, it includes: the two C-shaped rails are used for being fixed with the mounting surface and the movable drawer part; the S-shaped connecting piece is used for fixing the two solid sliding blocks; two solid slide blocks for connecting and fixing the S-shaped connecting piece with the C-shaped track; two U-shaped ball retainers are positioned between the C-shaped track and the solid slide block; the plurality of groups of balls are positioned inside the cylindrical runway; twelve limit blocks are respectively positioned on two sides of the C-shaped track, two sides of the solid slide block and two sides of the S-shaped connecting piece. The utility model has the characteristics of compact structure, slip smoothly, the load capacity is big, terminal deflection is low, factor of safety is high, longe-lived etc. The double stroke direction and any stroke value in a certain range can be realized by simple modification. The method can be widely applied to industries such as industrial automation, aerospace, rail transit, medical instruments, new energy, special vehicles, smart homes and the like.
Description
Technical Field
The utility model relates to a slide rail especially relates to a three section heavy load retractable slide rail.
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 tables, 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: 1. 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 reliability of the whole drawer system are influenced; 2. because of the influence of the thicknesses of the inner and outer fixed rails, under the condition of needing larger bearing, the requirement can be met only by a method of increasing the section of the rail, which can cause the installation size of the rail to be increased, thereby needing more installation space; 3. similarly, the runway surface, namely the rolling contact surface of the ball cannot be hardened due to the influence of the thicknesses of the inner and outer fixed rails, so that the runway surface has low hardness and poor wear resistance, and is locally deformed under the action of a large external force, thereby reducing the safety factor and the service life of the whole sliding rail; 4. the non-metal retainer and the plastic anti-drop limiting device cannot bear high inertia impact load due to the characteristics of the material and are easy to damage in a high-temperature environment.
In conclusion, the drawer-type slide rail can only be used for wooden and steel drawer structures of civil furniture products with lower loads and lower technical requirements, such as furniture, office tables, document cabinets and the like. 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
In order to solve the technical problem the utility model provides a compact structure, load capacity are big, factor of safety is high, long service life's three section heavy load retractable slide rail.
The utility model discloses an it can realize through following technical scheme to reach above-mentioned purpose: the three-section heavy-load telescopic slide rail is characterized by comprising an S-shaped connecting piece, two groove bottom surfaces of the S-shaped connecting piece are respectively provided with a solid slider, each solid slider is externally provided with a C-shaped track, a retainer is arranged between each C-shaped track and each solid slider, balls are embedded on two sides of each retainer, outer walls of two sides of each solid slider and inner walls of two sides of each C-shaped track form cylindrical runways respectively, and the balls roll in the cylindrical runways.
The solid slider is provided with a thread mounting hole fixedly connected with the bottom surface of the groove of the S-shaped connecting piece, and two sides of the top surface of the solid slider are respectively provided with a slider limiting block.
Two slider limiting blocks on one solid slider are respectively arranged on two sides of the central line of the solid slider in the length direction, and the number of the thread mounting holes is at least 2.
Each C-shaped rail bottom surface is provided with a countersunk head fixing hole, two ends of the top surface of the upper C-shaped rail are respectively provided with a rail limiting block, and two ends of the bottom surface of the lower C-shaped rail are respectively provided with a rail limiting block.
The inner contact surface of the inner walls of the two sides of each C-shaped rail and the balls is arc-shaped, and a hardness layer is arranged on the inner contact surface; the outer walls of the two sides of each solid slide block and the outer contact surface of the ball are arc-shaped, and a hardness layer is arranged on the outer contact surface.
The inner side of the top of the upper groove of the S-shaped connecting piece is provided with two upper limiting blocks, and the inner side of the bottom of the lower groove of the S-shaped connecting piece is provided with two lower limiting blocks; one upper limiting block is arranged at the end part of the extending end, and the other upper limiting block is arranged at the middle front part of the extending end; one lower limiting block is arranged at the end part of the extending end, and the other lower limiting block is arranged at the middle front part of the extending end.
And the bottom surfaces of the two grooves of the S-shaped connecting piece are respectively provided with a mounting through hole, and the mounting through holes are arranged at the retraction termination ends of the C-shaped rails.
Each C-shaped track and each solid sliding block are processed by bearing steel by adopting a cold drawing process.
The retainer is a U-shaped retainer, a plurality of pairs of steel ball limiting holes are uniformly distributed on two sides of the retainer, and the balls are embedded in the steel ball limiting holes.
The two ends of the bottom surface of the retainer are U-shaped grooves.
The utility model has the advantages of effect: the utility model has the characteristics of compact structure, slip smoothly, the loading capacity is big, the amount of deflection deformation is low, factor of safety is high, longe-lived etc. The system can be widely applied to industries such as industrial automation, rail transit, intelligent logistics, medical instruments, new energy, special vehicles, intelligent home and the like.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a plan view of the present invention.
Fig. 5 is a front view of a C-shaped track.
FIG. 6 is a front view of a solid slider.
Fig. 7 is a front view of the S-shaped connector.
FIG. 8 is a schematic view of the retainer and the steel balls.
In the figure: 1. a C-shaped track; 11. countersunk fixing holes; 12. a rail stopper; 2. a solid slider; 21. a threaded mounting hole; 22. a slider stopper; 3. a holder; 4. a ball bearing; 5. an S-shaped connecting piece; 51. mounting a through hole; 52. an upper limit block; 53. a lower limit block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in the figure, the utility model discloses three section heavy load retractable slide rail, including S type connecting piece 5, be equipped with a solid slider 2 on two grooved underside of S type connecting piece 5 respectively, every solid slider 2 is equipped with a C type track 1 outward, is equipped with holder 3 between C type track 1 and the solid slider 2, and ball 4 inlays in the both sides of holder 3, and the outer wall of 2 both sides of solid slider forms cylindrical runway respectively with the inner wall of 1 both sides of C type track, and ball 4 rolls in cylindrical runway.
The solid slider 2 is provided with a thread mounting hole 21 fixedly connected with the bottom surface of the groove of the S-shaped connecting piece 5, and two sides of the top surface of the solid slider 2 are respectively provided with a slider limiting block 22.
Two slider stopper 22 on solid slider 2 set up respectively in the both sides of solid slider 2 length direction central line for prevent that the holder from shifting, screw thread mounting hole 21 is 2 at least, and this embodiment is 3.
Each C-shaped track 1 bottom surface on be equipped with countersunk head fixed orifices 11, countersunk head fixed orifices 11 are used for the fixed of installation face and moving part, and the C-shaped track 1 top surface both ends of top are equipped with a track stopper 12 respectively, and the C-shaped track 1 bottom surface both ends of below are equipped with a track stopper 12 respectively. The two-way stroke can be realized by disassembling the track limiting block 12 so as to adapt to different technical requirements.
The inner contact surface of the inner walls of the two sides of each C-shaped track 1 and the balls 4 is arc-shaped, and a hardness layer is arranged on the inner contact surface; the outer walls of the two sides of each solid slide block 2 and the outer contact surface of the ball 4 are arc-shaped, and a hardness layer is arranged on the outer contact surface. The hardness layer can improve the hardness and the wear resistance of the surface of the track, reduce the deformation and the wear loss of the balls during passing, improve the safety factor of the slide rail and prolong the service life of the slide rail.
The inner side of the top of the upper groove of the S-shaped connecting piece 5 is provided with two upper limiting blocks 52, and the inner side of the bottom of the lower groove of the S-shaped connecting piece 5 is provided with two lower limiting blocks 53; one upper stopper 52 is provided at the end of the protruding end, and the other upper stopper 52 is provided at the middle front portion of the protruding end; one lower stopper 53 is provided at the end of the protruding end, and the other lower stopper 53 is provided at the middle front portion of the protruding end. Go up spacing piece 52 and spacing piece 53 down and the orbital track stopper cooperation of C type ensures the utility model discloses the stroke is accurate.
Two recess bottom surfaces of S type connecting piece 5 on be equipped with installation through-hole 51 respectively, installation through-hole 51 is established at C type track 1 withdrawal termination end, installation through-hole 51 makes things convenient for the installation of C type slide rail.
Each C-shaped track 1 and each solid sliding block 2 are processed by bearing steel by adopting a cold drawing process. The body thickness and the strength of the C-shaped track 1 and the solid slide block 2 can be increased, so that the C-shaped track and the solid slide block have larger radial (vertical direction) load capacity and axial (horizontal direction) load capacity under the same cross-sectional dimension. The deformation amount of the drawer under the action of axial (horizontal) impact force can be reduced, and the stability and the reliability of the whole drawer system are improved.
The retainer 3 is a U-shaped steel retainer, a plurality of pairs of steel ball limiting holes are uniformly distributed on two sides of the U-shaped steel retainer, and the balls 4 are embedded in the steel ball limiting holes to play a supporting and guiding role. The U-shaped steel holder can improve the strength of the part, so that the part can bear larger impact load and higher environmental temperature.
And two ends of the bottom surface of the retainer 3 are U-shaped grooves.
Claims (10)
1. The three-section heavy-load telescopic slide rail is characterized by comprising an S-shaped connecting piece, two groove bottom surfaces of the S-shaped connecting piece are respectively provided with a solid slider, each solid slider is externally provided with a C-shaped track, a retainer is arranged between each C-shaped track and each solid slider, balls are embedded on two sides of each retainer, outer walls of two sides of each solid slider and inner walls of two sides of each C-shaped track form cylindrical runways respectively, and the balls roll in the cylindrical runways.
2. The three-section heavy-duty telescopic sliding rail according to claim 1, wherein the solid sliding block is provided with a threaded mounting hole for fixedly connecting with the bottom surface of the groove of the S-shaped connecting member, and two sides of the top surface of the solid sliding block are respectively provided with a sliding block limiting block.
3. The three-heavy-duty telescopic sliding rail according to claim 2, wherein the two slider limiting blocks on one solid slider are respectively disposed on two sides of the central line of the solid slider in the length direction, and the number of the threaded mounting holes is at least 2.
4. The three-section heavy-duty telescopic rail according to claim 1, wherein each C-shaped rail has a countersunk hole on the bottom surface, a rail stopper is respectively disposed at two ends of the top surface of the upper C-shaped rail, and a rail stopper is respectively disposed at two ends of the bottom surface of the lower C-shaped rail.
5. The three-section heavy-duty telescopic sliding rail according to claim 4, wherein the inner contact surface between the inner wall of each C-shaped rail and the ball is arc-shaped, and a hardness layer is arranged on the inner contact surface; the outer walls of the two sides of each solid slide block and the outer contact surface of the ball are arc-shaped, and a hardness layer is arranged on the outer contact surface.
6. The three-section heavy-duty telescopic sliding rail according to claim 1, wherein the inner side of the top of the upper groove of the S-shaped connecting member is provided with two upper limiting blocks, and the inner side of the bottom of the lower groove of the S-shaped connecting member is provided with two lower limiting blocks; one upper limiting block is arranged at the end part of the extending end, and the other upper limiting block is arranged at the middle front part of the extending end; one lower limiting block is arranged at the end part of the extending end, and the other lower limiting block is arranged at the middle front part of the extending end.
7. The three-section heavy-duty telescopic rail of claim 6, wherein the bottom surfaces of the two grooves of the S-shaped connecting member are respectively provided with a mounting through hole, and the mounting through holes are provided at the retraction end of the C-shaped rail.
8. The three-section heavy-duty telescopic rail according to claim 1, wherein each of the C-shaped rails and the solid blocks is made of bearing steel by a cold drawing process.
9. The three-section heavy-duty telescopic sliding rail according to claim 1, wherein the retainer is a U-shaped retainer, a plurality of pairs of steel ball limiting holes are uniformly distributed on both sides of the retainer, and the balls are embedded in the steel ball limiting holes.
10. The three-section heavy-duty telescopic sliding rail according to claim 9, wherein the two ends of the bottom surface of the retainer are U-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022233445.8U CN213487857U (en) | 2020-10-10 | 2020-10-10 | Three-section heavy-load telescopic sliding rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022233445.8U CN213487857U (en) | 2020-10-10 | 2020-10-10 | Three-section heavy-load telescopic sliding rail |
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| Publication Number | Publication Date |
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| CN213487857U true CN213487857U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022233445.8U Active CN213487857U (en) | 2020-10-10 | 2020-10-10 | Three-section heavy-load telescopic sliding rail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341725A (en) * | 2022-09-20 | 2022-11-15 | 苏州金螳螂建筑装饰股份有限公司 | Public space GRG kaleidoscope molding background wall assembled design structure |
| RU214845U1 (en) * | 2022-10-08 | 2022-11-16 | Павел Юрьевич Ваганов | FULL EXTENSION LINEAR ROLLER |
-
2020
- 2020-10-10 CN CN202022233445.8U patent/CN213487857U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341725A (en) * | 2022-09-20 | 2022-11-15 | 苏州金螳螂建筑装饰股份有限公司 | Public space GRG kaleidoscope molding background wall assembled design structure |
| RU214845U1 (en) * | 2022-10-08 | 2022-11-16 | Павел Юрьевич Ваганов | FULL EXTENSION LINEAR ROLLER |
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