CN209762083U - Rigidity-increasing return brake spring - Google Patents

Abstract

The utility model provides an increase rigidity return brake spring. It has solved current technical problem. The rigidity-enhanced return brake spring comprises a spring body, wherein a first positioning barrel and a second positioning barrel are inserted in the spring body, the second positioning barrel of the first positioning barrel is sleeved with the second positioning barrel of the second positioning barrel, the diameter of the first positioning barrel is larger than that of the second positioning barrel, the first positioning barrel and the second positioning barrel move relatively in the axial direction, a first positioning sliding seat is arranged in the first positioning barrel, a second positioning sliding seat is arranged in the second positioning barrel, a plurality of connecting rod bodies are further arranged between the inner sides of the first positioning barrel, the second positioning barrel and the spring body, one end of each connecting rod body is hinged to the first positioning barrel or the second positioning barrel, and the other end of each connecting rod body is embedded in an embedding groove formed in the inner side of the spring body. The utility model has the advantages of good stability, difficult lateral deformation and the like.

Description

Rigidity-increasing return brake spring

Technical Field

The utility model belongs to the technical field of the spring, especially, relate to an increase rigidity return brake spring.

Background

A spring is a mechanical part that works by elasticity. The part made of elastic material deforms under the action of external force and restores to the original shape after the external force is removed. Also used as a "spring". Typically made of spring steel. The types of springs are complex and various, and mainly include spiral springs, volute springs, plate springs, special springs and the like according to the shapes. However, the existing brake spring has the technical problems of poor stability, easy lateral deformation and the like, and the use safety is seriously influenced.

In response to this problem, research and study have been conducted in long-term production and living practices, for example, chinese utility model patent discloses a brake spring [ application No.: 201820126618.6], comprising two spring bodies arranged in parallel and two handles arranged at the ends of the spring bodies, wherein the spring bodies comprise elastic units arranged in the middle of the spring bodies and arc-shaped hooks arranged at the two ends of the elastic units, each handle comprises a cross beam and two vertical beams, the two ends of the cross beam are respectively connected with one end of each vertical beam, and the other ends of the two vertical beams are respectively connected with the same end of each spring body.

The solution described above improves to some extent some of the problems of the prior art, but it also has at least the following drawbacks: the spring has poor stability and is easy to generate lateral deformation.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a stability is good, is difficult for producing the increase rigidity return brake spring of side direction deformation.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this increase rigidity return brake spring, including the spring body, the interpolation of spring body connect with first location barrel and second location barrel, first location barrel second location barrel cup joint mutually, just the diameter size of first location barrel be greater than the diameter size of second location barrel, just first location barrel and second location barrel move relatively at axial direction, first location barrel in be equipped with first location slide, second location barrel in be equipped with second location slide, the inboard of first location barrel and second location barrel and spring body between still be equipped with a plurality of connecting rod bodies, connecting rod body one end and first location barrel or second location barrel articulated, the other end of connecting rod body inlay to establish and set up in the caulking groove of spring body inboard.

The first positioning cylinder and the second positioning cylinder are sleeved and arranged and can move axially relative to each other, the interior of the spring body can be filled and positioned under the condition that the extension and retraction of the spring body are not influenced, the lateral displacement of the spring body during extension and retraction is effectively prevented, and the stability of the spring body is improved; and the connecting rod body and the caulking groove can improve the stability of the connection of the first positioning cylinder body and the second positioning cylinder body with the spring body, so that the spring body can be axially displaced through the connecting rod body and the first positioning cylinder body or the second positioning cylinder body during compression.

In foretell increase rigidity return brake spring, first positioning slide and relative first positioning barrel slide, the lateral part of first positioning slide be equipped with a plurality of first location protruding muscle, the inboard of first positioning barrel be equipped with a plurality of first spouts that set up with first location protruding muscle is corresponding.

In the rigidity-enhanced return brake spring, the second positioning sliding seat and the second positioning cylinder body slide relatively, a plurality of second positioning convex ribs are arranged on the side portion of the second positioning sliding seat, and a plurality of second sliding grooves corresponding to the second positioning convex ribs are arranged on the inner side of the second positioning cylinder body. The first positioning sliding seat realizes sliding in the first sliding groove through the first positioning convex rib, the second positioning sliding seat realizes sliding in the second sliding groove through the second positioning convex rib, and the length of axial displacement of the first positioning barrel and the second positioning barrel can be increased, so that the spring body can stretch more smoothly.

In the rigidity-enhanced return brake spring, the end part of the first positioning sliding seat is also provided with a first positioning boss, and the upper end of the spring body is abutted against the first positioning boss.

In the rigidity-enhanced return brake spring, a second positioning boss is further arranged at the end part of the second positioning sliding seat, and the upper end of the spring body abuts against the second positioning boss. Realize the axial of spring body spacing through first location boss and second location boss, can prevent that spring body transition is tensile to lead to damaging to increase of service life.

In the above-mentioned rigidity-enhanced return brake spring, one end of the connecting rod body facing the caulking groove is hemispherical, and the caulking groove is a hemispherical groove. The tip and the caulking groove of the connecting rod body all are the hemisphere, can improve the wobbling smoothness nature of the connecting rod body.

Compared with the prior art, this increase rigidity return brake spring's advantage lies in: reasonable in design, simple structure through first location barrel and second location barrel can fill the location to the inside of spring body under the flexible condition of not influencing the spring body, takes place lateral displacement when effectively preventing the spring body from stretching out and drawing back, improves the stability of spring.

Drawings

FIG. 1 is a schematic structural view provided by the present invention;

In the figure, a spring body 1, a first positioning cylinder 2, a second positioning cylinder 3, a first positioning slide 4, a second positioning slide 5, a connecting rod body 6, an embedding groove 7, a first positioning convex rib 8, a first sliding groove 9, a second positioning convex rib 10, a second sliding groove 11, a first positioning boss 12 and a second positioning boss 13.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the rigidity-enhanced return brake spring comprises a spring body 1, a first positioning cylinder 2 and a second positioning cylinder 3 are inserted in the spring body 1, the first positioning cylinder 2 and the second positioning cylinder 3 are sleeved, the diameter of the first positioning cylinder 2 is larger than that of the second positioning cylinder 3, the first positioning cylinder 2 and the second positioning cylinder 3 move relatively in the axial direction, a first positioning slide seat 4 is arranged in the first positioning cylinder 2, a second positioning slide seat 5 is arranged in the second positioning cylinder 3, a plurality of connecting rod bodies 6 are further arranged between the first positioning cylinder 2 and the second positioning cylinder 3 and the inner side of the spring body 1, one end of each connecting rod body 6 is hinged to the first positioning cylinder 2 or the second positioning cylinder 3, and the other end of each connecting rod body 6 is embedded in an embedding groove 7 formed in the inner side of the spring body 1.

The first positioning cylinder 2 and the second positioning cylinder 3 are sleeved, the first positioning cylinder 2 and the second positioning cylinder 3 are sleeved and can move axially relative to each other, the interior of the spring body 1 can be filled and positioned under the condition that the extension and retraction of the spring body 1 are not influenced, the lateral displacement of the spring body 1 during extension and retraction is effectively prevented, and the stability of the spring body 1 is improved; and the connecting rod body 6 and the caulking groove 7 can improve the stability that first location barrel 2 and second location barrel 3 are connected with spring body 1 for can take first location barrel 2 or the axial displacement of second location barrel 3 through connecting rod body 6 when spring body 1 compresses.

Preferably, the first positioning sliding seat 4 slides relative to the first positioning cylinder 2, a plurality of first positioning convex ribs 8 are arranged on the side part of the first positioning sliding seat 4, and a plurality of first sliding grooves 9 arranged corresponding to the first positioning convex ribs 8 are arranged on the inner side of the first positioning cylinder 2; second location slide 5 slides with relative second location barrel 3, the lateral part of second location slide 5 is equipped with the protruding muscle 10 of a plurality of second location, the inboard of second location barrel 3 is equipped with a plurality of second spouts 11 with the corresponding setting of the protruding muscle 10 of second location, first location slide 4 realizes the slip in first spout 9 through the protruding muscle 8 of first location, the second location slide 5 realizes the slip in second spout 11 through the protruding muscle 10 of second location, can improve the length of first location barrel 2 and the 3 axial displacement of second location barrel, thereby make spring body 1 flexible more smooth and easy.

Further, the tip of first location slide 4 still is equipped with first location boss 12, the upper end of spring body 1 supports and leans on in first location boss 12, the tip of second location slide 5 still is equipped with second location boss 13, the upper end of spring body 1 supports and leans on in second location boss 13, it is spacing to realize the axial of spring body 1 through first location boss 12 and second location boss 13, can prevent that spring body 1 from passing through the tensile damage that leads to, thereby increase of service life.

Furthermore, the end of the connecting rod body 6 facing the caulking groove 7 is hemispherical, the caulking groove 7 is a hemispherical groove, and the end of the connecting rod body 6 and the caulking groove 7 are hemispherical, so that the swinging fluency of the connecting rod body 6 can be improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the spring body 1, the first positioning cylinder 2, the second positioning cylinder 3, the first positioning slide 4, the second positioning slide 5, the link body 6, the caulking groove 7, the first positioning rib 8, the first sliding groove 9, the second positioning rib 10, the second sliding groove 11, the first positioning boss 12, the second positioning boss 13, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (6)

1. The utility model provides an increase rigidity return brake spring, includes spring body (1), its characterized in that, the interpolation of spring body (1) have first location barrel (2) and second location barrel (3), first location barrel (2) second location barrel (3) cup joint mutually, just the diameter size of first location barrel (2) be greater than the diameter size of second location barrel (3), just first location barrel (2) and second location barrel (3) move about relatively in the axial direction, first location barrel (2) in be equipped with first location slide (4), second location barrel (3) in be equipped with second location slide (5), the inboard of first location barrel (2) and second location barrel (3) and spring body (1) between still be equipped with a plurality of connecting rod bodies (6), connecting rod body (6) one end and first location barrel (2) or second location barrel (3) looks hinge And the other end of the connecting rod body (6) is embedded in an embedding groove (7) formed in the inner side of the spring body (1).

2. A stiffness-increased return brake spring as claimed in claim 1, wherein the first positioning slide (4) slides relative to the first positioning cylinder (2), a plurality of first positioning ribs (8) are provided on a side portion of the first positioning slide (4), and a plurality of first sliding grooves (9) corresponding to the first positioning ribs (8) are provided on an inner side of the first positioning cylinder (2).

3. A stiffness-increased return brake spring as claimed in claim 2, wherein the second positioning slide (5) slides relative to the second positioning cylinder (3), a plurality of second positioning ribs (10) are provided on the side of the second positioning slide (5), and a plurality of second sliding grooves (11) corresponding to the second positioning ribs (10) are provided on the inner side of the second positioning cylinder (3).

4. A rigidified return brake spring as claimed in claim 2, wherein said first positioning slider (4) is further provided with a first positioning boss (12) at its end, and said spring body (1) abuts against said first positioning boss (12) at its upper end.

5. A rigidifying return brake spring as claimed in claim 3, wherein said second positioning slide (5) is further provided at its end with a second positioning boss (13), said spring body (1) having its upper end abutting against said second positioning boss (13).

6. a stiffness-enhanced return brake spring as claimed in claim 1, wherein the end of the link body (6) facing the insertion groove (7) is formed in a hemispherical shape, and the insertion groove (7) is formed in a hemispherical shape.