Search

CN-224229717-U - Anti-fatigue metal spring plate structure with long reinforcing ribs

CN224229717UCN 224229717 UCN224229717 UCN 224229717UCN-224229717-U

Abstract

The utility model discloses an anti-fatigue metal spring plate structure with a long reinforcing rib, which comprises a metal spring plate main body, wherein the metal spring plate main body is provided with a fixed end and a free end, at least one long reinforcing rib is arranged on the surface of the metal spring plate main body along the length direction of the metal spring plate main body in an extending way, two ends of the long reinforcing rib are respectively connected with the fixed end and the free end, and the length of the long reinforcing rib is more than two thirds of the length of the metal spring plate main body. Stress concentration is reduced through the dispersion of long reinforcing ribs and the transition fillet, and the fatigue resistance is obviously improved and the service life is prolonged by matching with the force unloading hole and the corrugated structure. The reinforcing ribs and the main body are integrally formed and reasonably designed in cross section, so that the overall strength is enhanced, and the symmetrical layout and thickness parameters balance the strength and elasticity. The nickel-phosphorus alloy coating of the contact part improves wear resistance and conductivity, and the mounting hole reinforcing boss ensures stable mounting.

Inventors

  • LI HENGYUAN
  • ZHANG GUANGJIN
  • YANG QINGJIE

Assignees

  • 东莞市春科五金电子有限公司

Dates

Publication Date
20260512
Application Date
20250716

Claims (8)

  1. 1. The anti-fatigue metal spring plate structure with the long reinforcing ribs is characterized by comprising a metal spring plate main body, wherein the metal spring plate main body is provided with a fixed end and a free end, at least one long reinforcing rib is arranged on the surface of the metal spring plate main body along the length direction of the metal spring plate main body in an extending mode, two ends of the long reinforcing rib are respectively connected with the fixed end and the free end, and the length of the long reinforcing rib is larger than two thirds of the length of the metal spring plate main body; the long reinforcing ribs are symmetrically arranged along the longitudinal central axis of the metal elastic sheet main body, and the width of the long reinforcing ribs gradually narrows from the fixed end to the free end.
  2. 2. The anti-fatigue metal dome structure with long reinforcing ribs of claim 1, wherein the cross section of the long reinforcing ribs is rectangular, trapezoidal or inverted T-shaped, and the height of the long reinforcing ribs is 1.5-3 times the thickness of the metal dome main body.
  3. 3. The anti-fatigue metal dome structure with the long reinforcing ribs is characterized in that the long reinforcing ribs and the metal dome main body are integrally formed, transition fillets are formed between the two side edges of the long reinforcing ribs and the metal dome main body, and the radius of each transition fillet is 0.5-2mm.
  4. 4. The anti-fatigue metal dome structure with the long reinforcing ribs of claim 1, wherein a plurality of force discharging holes are symmetrically formed in the metal dome main body and located on two sides of the long reinforcing ribs, and the force discharging holes are uniformly distributed along the length direction of the metal dome main body.
  5. 5. The fatigue-resistant metal dome structure with long reinforcing ribs according to claim 1, wherein at least one corrugated structure extending along the length direction of the long reinforcing ribs is arranged on the surface of the long reinforcing ribs, the peak height of the corrugated structure is 0.2-0.8mm, and the wavelength is 1-3mm.
  6. 6. The anti-fatigue metal dome structure with long reinforcing ribs of claim 1, wherein the free end of the metal dome body is provided with a contact part, the surface of the contact part is covered with a nickel-phosphorus alloy coating, and the thickness of the nickel-phosphorus alloy coating is 5-15 μm.
  7. 7. The anti-fatigue metal dome structure with the long reinforcing ribs of claim 1, wherein the fixed end of the metal dome main body is provided with a mounting hole, the edge of the mounting hole is provided with a reinforcing boss, and the height of the reinforcing boss is 0.3-1mm.
  8. 8. The anti-fatigue metal dome structure with long reinforcing ribs of claim 1, wherein the thickness of the metal dome main body is 0.1-0.5mm, and the thickness of the long reinforcing ribs is 0.2-0.8mm.

Description

Anti-fatigue metal spring plate structure with long reinforcing ribs Technical Field The utility model relates to the technical field of metal shrapnel, in particular to an anti-fatigue metal shrapnel structure with long reinforcing ribs. Background The metal spring plate is used as a key part in the fields of electronics, machinery and the like, needs to bear alternating loads such as repeated bending, extrusion and the like for a long time, and the fatigue resistance and the structural stability of the metal spring plate directly influence the reliability of equipment. In the prior art, the traditional elastic sheet is of a single flat plate structure, stress concentration phenomenon is easy to occur when the elastic sheet is stressed, particularly fatigue fracture is easy to occur in a transition region of a fixed end and a free end after long-term use, and the service life is short. Meanwhile, the conventional elastic sheet is difficult to achieve both strength and elasticity, if the thickness is simply increased, the elasticity is reduced, the deformation requirement of precision equipment cannot be met, and if the thickness is reduced due to pursuing high elasticity, the structural strength is insufficient, and permanent deformation is easy to occur. Disclosure of utility model In order to overcome the defects of the prior art, the utility model provides an anti-fatigue metal shrapnel structure with long reinforcing ribs, which can effectively solve the problems of the background technology. The technical scheme adopted for solving the technical problems is as follows: the anti-fatigue metal spring plate structure with the long reinforcing ribs comprises a metal spring plate main body, wherein the metal spring plate main body is provided with a fixed end and a free end, at least one long reinforcing rib is arranged on the surface of the metal spring plate main body along the length direction of the metal spring plate main body in an extending mode, two ends of the long reinforcing rib are respectively connected with the fixed end and the free end, and the length of the long reinforcing rib is larger than two thirds of the length of the metal spring plate main body; the long reinforcing ribs are symmetrically arranged along the longitudinal central axis of the metal elastic sheet main body, and the width of the long reinforcing ribs gradually narrows from the fixed end to the free end. As further description of the technical scheme, the section shape of the long reinforcing rib is rectangular, trapezoidal or inverted T-shaped, and the height of the long reinforcing rib is 1.5-3 times of the thickness of the metal elastic sheet main body. As further description of the technical scheme, the long reinforcing ribs and the metal elastic sheet main body are integrally formed, transition fillets are formed between the edges of the two sides of the long reinforcing ribs and the metal elastic sheet main body, and the radius of each transition fillet is 0.5-2mm. As further description of the technical scheme, the metal elastic sheet main body is symmetrically provided with a plurality of force unloading holes on two sides of the long reinforcing rib, and the force unloading holes are uniformly distributed along the length direction of the metal elastic sheet main body. As a further description of the above technical solution, the surface of the elongated reinforcing rib is provided with at least one corrugated structure extending along the length direction thereof, and the peak height of the corrugated structure is 0.2-0.8mm, and the wavelength is 1-3mm. As a further description of the technical scheme, the free end of the metal spring plate main body is provided with a contact part, the surface of the contact part is covered with a nickel-phosphorus alloy coating, and the thickness of the nickel-phosphorus alloy coating is 5-15 μm. As further description of the technical scheme, the fixed end of the metal elastic sheet main body is provided with a mounting hole, the edge of the mounting hole is provided with a reinforcing boss, and the height of the reinforcing boss is 0.3-1mm. As a further description of the above technical solution, the thickness of the metal spring body is 0.1-0.5mm, and the thickness of the long reinforcing rib is 0.2-0.8mm. Compared with the prior art, the utility model has the beneficial effects that: The anti-fatigue metal shrapnel structure with the long reinforcing ribs has at least one of the following beneficial effects in the use process: Stress concentration is reduced through the dispersion of long reinforcing ribs and the transition fillet, and the fatigue resistance is obviously improved and the service life is prolonged by matching with the force unloading hole and the corrugated structure. The reinforcing ribs and the main body are integrally formed and reasonably designed in cross section, so that the overall strength is enhanced, and the symmetrical layout and thickness para