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CN-122014729-A - Flexible unit and flexible member

CN122014729ACN 122014729 ACN122014729 ACN 122014729ACN-122014729-A

Abstract

The invention provides a flexible unit and a flexible component, wherein an elastic piece and a connecting piece are arranged between two adjacent structural pieces, a space is formed between the two adjacent structural pieces, and when relative displacement is generated between the two adjacent structural pieces or external acting force is applied, the elastic piece and the connecting piece can be elastically deformed preferentially so as to absorb, release or buffer the external force, thereby reducing stress concentration. On the basis of keeping the mutual connection of two adjacent structural members, the deformation capacity of the integral member is improved by enabling the two structural members to have elastic transition, displacement compensation and buffer release capacity, the conditions of fracture, cracking, fatigue failure and the like caused by stress concentration at the deformation position are avoided, and the use stability and reliability of the integral member are improved.

Inventors

  • LI HAORAN
  • XIE PENGCHEN
  • SUN WEI
  • Dai Zuda
  • YANG WANHU

Assignees

  • 铂力特(深圳)增材制造有限公司

Dates

Publication Date
20260512
Application Date
20260401

Claims (10)

  1. 1. A flexible unit, the flexible unit comprising: An elastic member; A connecting piece; And the two adjacent structural members are connected through the elastic piece and the connecting piece, so that a space is formed between the two adjacent structural members.
  2. 2. The flexible unit according to claim 1, characterized in that the flexible unit further comprises: And the limiting piece is matched with the connecting piece to limit the displacement and deformation of the connecting piece and/or the elastic piece.
  3. 3. The flexible unit of claim 1, wherein the elastic member has a fixing portion and a connecting portion; One end of the connecting piece is fixedly connected with the connecting part of the elastic piece, one end of the fixing part of the elastic piece is fixed on one structural piece, and one end of the connecting piece, which is far away from the elastic piece, is fixed on the other structural piece, so that a space is formed between two adjacent structural pieces.
  4. 4. A flexible unit according to claim 1, wherein each of said structural members is provided with said connecting members, and wherein said elastic members are connected at each end thereof to two adjacent ones of said connecting members so as to form a space therebetween.
  5. 5. The flexible unit of claim 1, wherein the resilient member is a compliant geometry of non-linear stiffness.
  6. 6. The flexible unit of claim 5, wherein the resilient member is one of arcuate, S-shaped, bent, arcuate, oval, or diamond-shaped.
  7. 7. The flexible unit of claim 2, wherein the displacement of the connecting member is denoted as a and the yield limit displacement of the elastic member is denoted as b, satisfying the relationship an < b, where n is a safety factor and 1.5 n 2.
  8. 8. The flexible unit of claim 2, wherein the stop is disposed on the structural member between the connector and the structural member.
  9. 9. A flexible unit according to claim 1, wherein two adjacent structural members are connected by a plurality of sets of said connecting members and said elastic members.
  10. 10. A flexible member comprising at least one flexible unit as claimed in claim 1-8, said flexible member being integrally formed.

Description

Flexible unit and flexible member Technical Field The invention relates to the technical field of flexible units, in particular to a flexible unit and a flexible member. Background In the existing structural member, a metal material is often adopted to form a whole member in the processing and manufacturing processes. Metallic materials generally have high strength, hardness, and load-bearing capacity, and are therefore widely used in mechanical connectors, supports, force-transmitting members, and other fields where high demands are placed on structural stability and service life. However, in practical applications, not only a portion of the structural member needs to have a certain strength and bearing capacity, but also needs to generate a large bending deformation during use, or be able to withstand repeated bending. For this type of structure, although the metal material can provide better overall strength, because the metal material has larger rigidity and limited elastic range, when bending at a larger angle, obvious stress concentration is easy to form at the bending part. Especially, under the condition of smaller bending radius, larger bending angle or repeated bending requirement for multiple times, local overstrain is more likely to occur in a bending region, so that the problems of cracking, fracture, plastic deformation or fatigue failure and the like are caused, and the use requirement of higher bearing capacity and larger bending deformation capacity is difficult to meet. Disclosure of Invention In view of the above, it is necessary to provide a flexible unit and a flexible member for solving the problem of weak bending deformation capability of the structural member. In one aspect, a flexible unit is presented, the flexible unit comprising: An elastic member; A connecting piece; And the two adjacent structural members are connected through the elastic piece and the connecting piece, so that a space is formed between the two adjacent structural members. In at least one embodiment of the application, the flexible unit further comprises: And the limiting piece is matched with the connecting piece to limit the displacement and deformation of the connecting piece and/or the elastic piece. In at least one embodiment of the application, the elastic member has a fixing portion and a connecting portion; One end of the connecting piece is fixedly connected with the connecting part, one end of the fixing part of the elastic piece is fixed on one structural part, and one end of the connecting piece far away from the elastic piece is fixed on the other structural part, so that a space is formed between two adjacent structural parts. In at least one embodiment of the present application, each of the structural members is provided with a connecting member, and two ends of the elastic member are respectively connected with two adjacent connecting members, so that a space is formed between the two adjacent structural members. In at least one embodiment of the application, the resilient member is a compliant geometry of non-linear stiffness. In at least one embodiment of the present application, the elastic member is one of arcuate, S-shaped, bent, arcuate, elliptical, or diamond-shaped. In at least one embodiment of the application, the displacement of the connecting piece is denoted as a, the yield limit displacement of the elastic piece is denoted as b, and the relation of an < b is satisfied, wherein n is a safety coefficient, and n is 1.5-2. In at least one embodiment of the present application, the limiting member is disposed on the structural member and is located between the connecting member and the structural member. In at least one embodiment of the present application, two adjacent structural members are connected by a plurality of sets of the connecting members and the elastic members. A flexible member comprising at least one flexible unit as described in the foregoing, the flexible member being integrally manufactured. Implementing the flexible unit and flexible member of the present embodiment will have at least the following beneficial effects: According to the flexible unit and the flexible member, the elastic piece and the connecting piece are arranged between the two adjacent structural pieces, the space is formed between the two adjacent structural pieces, and when relative displacement is generated between the two adjacent structural pieces or external acting force is applied, the elastic piece and the connecting piece can be elastically deformed preferentially so as to absorb, release or buffer the external force, so that stress concentration is reduced. On the basis of keeping the mutual connection of two adjacent structural members, the deformation capacity of the integral member is improved by enabling the two structural members to have elastic transition, displacement compensation and buffer release capacity, the conditions of fracture, cracking, fatigue failure and the like caused