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CN-224214573-U - Telescopic adjusting guide rail

CN224214573UCN 224214573 UCN224214573 UCN 224214573UCN-224214573-U

Abstract

The utility model provides a telescopic adjusting guide rail which comprises an outer rail, a middle rail and an inner rail, wherein a first retainer and a second retainer are respectively arranged between three layers of rails, so that stability in sliding is ensured, and shaking is reduced. The middle rail elastic limiting device arranged at one end of the outer rail and the inner rail elastic limiting device on the middle rail are combined to act together, so that excessive stretching is prevented, buffering is provided, and impact force and abrasion are reduced. The first retainer and the second retainer are composed of a retainer, a retainer ring and balls, so that low-friction smooth movement is realized. The first restraining device and the second restraining device at the two ends of the retainer further enhance the stability and the safety of the system and avoid derailment caused by misoperation or external impact. The stability, the safety and the durability of the guide rail are effectively improved.

Inventors

  • DING YU
  • LIU SANXIA

Assignees

  • 南京锐亦兢自动化设备有限公司

Dates

Publication Date
20260508
Application Date
20250714

Claims (7)

  1. 1. The utility model provides a telescopic guide rail of adjusting, includes outer rail (1), slides and set up well rail (2) in outer rail (1), slides and sets up interior rail (3) in well rail (2), its characterized in that: A first retainer (4) is arranged between the outer rail (1) and the middle rail (2), and a second retainer (5) is arranged between the middle rail (2) and the inner rail (3); One end of the outer rail (1) is provided with a middle rail (2) elastic limiting device, and one end of the middle rail (2) close to the middle rail (2) limiting device is provided with an inner rail (3) elastic limiting device; the two ends of the first retainer (4) are provided with first restraining devices, and the two ends of the second retainer (5) are provided with second restraining devices.
  2. 2. A telescopic adjusting guide rail according to claim 1, characterized in that a protrusion (6) is arranged in the middle of the middle rail (2), double-layer curled edges (7) are symmetrically formed on two sides of the protrusion (6), and grooves (8) for placing the first retainer (4) or the second retainer (5) are formed on two sides of the double-layer curled edges (7).
  3. 3. A telescopic adjusting guide rail according to claim 1, wherein the elastic limiting device of the middle rail (2) comprises an abutting edge (9) which is arranged at one end of the outer rail (1) and is warped upwards, an abutting groove (10) which is fixed on the abutting edge (9), an abutting block (11) which slides in the abutting groove (10), and a spring (12) which is fixed on the abutting groove (10) at one end and is fixed on the abutting block (11) at the other end.
  4. 4. A telescopic adjusting guide according to claim 1, wherein the first restraining means comprises a first inner restraining block (13) arranged on the outer rail (1) and far from one end of the elastic limiting means of the middle rail (2), and a first outer restraining block (14) arranged on the middle rail (2) and near one end of the elastic limiting means of the middle rail (2).
  5. 5. A telescopic adjustment rail according to claim 1, characterized in that the second restraining means comprises a second inner restraining block (15) arranged on the middle rail (2) and remote from one end of the inner rail (3) elastic limiting means, and a second outer restraining block (16) arranged on the inner rail (3) and close to one end of the inner rail (3) elastic limiting means.
  6. 6. A telescopic adjustment rail according to claim 1, characterized in that the inner rail (3) elastic limit means comprise an elastic limit block (17), a locking bolt (18) for locking the elastic limit block (17) on the middle rail (2).
  7. 7. A telescopic adjustment rail according to claim 1, characterized in that the first holder (4) and the second holder (5) each comprise a holder (19), a number of holding rings (20) uniformly embedded on the holder (19), balls (21) embedded in the holding rings (20).

Description

Telescopic adjusting guide rail Technical Field The utility model relates to the technical field of guide rails, in particular to a telescopic adjusting guide rail. Background In various types of equipment and scenes involving linear motion, the guide rail serves as a key component, playing an important role in guiding and supporting the moving component. From common furniture drawers and curtain rails to automatic equipment in industrial production, sliding platforms of precise instruments and the like, the performance of the guide rail directly influences the use experience and the working efficiency of the equipment. Although the telescopic guide rail has a length adjusting function, the stability of the telescopic guide rail in the telescopic process is poor. Taking some simple curtain guide rails as an example, after the length of the curtain guide rails is adjusted to be longer, the simple clamping device is only used for maintaining the stable structure, the supporting strength is obviously weakened, the problems of shaking, shifting, even derailment and the like are easy to occur in daily use, and the service life and the use safety of the curtain guide rails are seriously influenced. Disclosure of utility model In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a telescopic adjusting rail for solving the problem of poor stability of the rail in the prior art. To achieve the above and other related objects, the present utility model provides the following technical solutions: A telescopic adjusting guide rail comprises an outer rail, a middle rail and an inner rail, wherein the middle rail is arranged in the outer rail in a sliding mode, the inner rail is arranged in the middle rail in a sliding mode, a first retainer is arranged between the outer rail and the middle rail, a second retainer is arranged between the middle rail and the inner rail, a middle rail elastic limiting device is arranged at one end of the outer rail, an inner rail elastic limiting device is arranged at one end, close to the middle rail limiting device, of the middle rail, a first restraining device is arranged at two ends of the first retainer, and a second restraining device is arranged at two ends of the second retainer. According to the technical scheme, the inner rail can slide in the middle rail, and the middle rail can slide in the outer rail, so that the whole telescopic function of the guide rail is realized. The first retainers are arranged between the outer rail and the middle rail, the second retainers are arranged between the middle rail and the inner rail, and the first retainers play a role in keeping the relative positions of the guide rails stable and avoid shaking or shifting in the sliding process. The first restraining means at both ends of the first holder and the second restraining means at both ends of the second holder can restrict excessive sliding of the respective guide rails. The middle rail elastic limiting device at one end of the outer rail can provide elastic resistance for the middle rail, and the inner rail elastic limiting device at one end of the middle rail, which is close to the middle rail limiting device, plays an elastic limiting role on the inner rail, so that the stability of the guide rail in various telescopic states is greatly improved through the arrangement of the retainer and the constraint device, and shaking and noise during operation are reduced. In an embodiment of the present utility model, a protrusion is disposed in the middle of the middle rail, two sides of the protrusion are symmetrically formed into a double-layer curled edge, and two sides of the double-layer curled edge are formed into a groove for placing the first retainer or the second retainer. According to the technical scheme, the middle part of the middle rail is provided with the bulge, so that the structural strength of the middle rail can be improved, double-layer curled edges are symmetrically formed on two sides of the bulge, the rigidity and the bending resistance of the edge of the middle rail are improved, the risk of deformation or damage possibly occurring in the extending process is reduced, and the grooves for placing the first retainer or the second retainer are formed on two sides of the double-layer curled edges, so that the retainer can be firmly fixed on the position of the retainer, and the assembly precision of the whole guide rail system assembly is improved. In an embodiment of the utility model, the middle rail elastic limiting device comprises an abutting edge, an abutting groove, an abutting block and a spring, wherein the abutting edge is arranged at one end of the outer rail and is warped upwards, the abutting groove is fixed on the abutting edge, the abutting block slides in the abutting groove, and one end of the spring is fixed on the abutting groove, and the other end of the spring is fixed on the abutting block. By mea