CN211117290U

CN211117290U - Reducing wire coil spring steel wire

Info

Publication number: CN211117290U
Application number: CN201921265702.7U
Authority: CN
Inventors: 金永宝; 陈志强; 俞七斤; 戚可金
Original assignee: Zhuji Haina Special Steel Co ltd
Current assignee: Zhuji Haina Special Steel Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-07-28
Anticipated expiration: 2029-08-06

Abstract

The utility model provides a reducing coil of wire spring steel wire. It has solved current technical problem. This reducing line book spring steel wire, including the spring body that has big footpath end and path end, the external diameter of the spring body with from the path end to big footpath end crescent, and the line footpath of this spring body is held from the path end to big footpath and is held crescent, the top side of path end support and lean on there being last spring plate, the bottom side of big footpath end support and lean on there being lower spring plate, last spring plate and lower spring plate between be equipped with flexible locating component, just last spring plate and path between holding, still be equipped with circumference location structure between lower spring plate and the big footpath end respectively. The utility model has the advantages of good comfort, good structural stability and the like.

Description

Reducing wire coil spring steel wire

Technical Field

The utility model belongs to the technical field of the spring, especially, relate to a reducing coil of wire spring steel wire.

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. The springs can be divided into extension springs, compression springs, torsion springs and bending springs according to stress properties, disc springs, annular springs, plate springs, spiral springs, truncated cone volute springs, torsion bar springs and the like according to shapes, and can be divided into cold coil springs and hot coil springs according to manufacturing processes. The common cylindrical spring has simple manufacture, can be made into various types according to the loading condition, has simple structure and is most widely applied. The spring is generally made of a material having a high elastic limit, a high fatigue limit, a high impact toughness, a high heat treatment property, and the like, and carbon spring steel, alloy spring steel, stainless spring steel, copper alloy, nickel alloy, rubber, and the like are generally used. In the field of automobile seats, compression springs with the same spring diameter are generally used as cushion springs, but when the compression springs with the same spring diameter are stressed, the comfort after compression is poor due to the spring diameter, the structural stability is poor, and the use is influenced.

In response to this problem, research and study have been conducted in long-term production and life practice, for example, chinese utility model patent discloses an automobile seat spring [ application No.: 201720286442.6, the utility model comprises: seat spring and carry out the spring waist support main part that fixes a position with the seat spring, the spring waist holds in the palm the main part including the spring hook who locates both ends and with the taut spring coupling portion of two spring hooks, the spring hook that the spring waist held in the palm main part both ends passes through spring buckle and seat spring coupling, the both ends of spring buckle are the clamping part, the spring buckle passes through the clamping part card cover on seat spring and spring hook, still be equipped with on the spring buckle and carry out the locating hole that the chucking was fixed a position with seat spring and spring hook.

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 comfort is poor and the structural stability is poor.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a travelling comfort is good, the good reducing line of structural stability rolls up spring wire.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this reducing line book spring steel wire, including the spring body that has big footpath end and path end, the external diameter of the spring body with from the path end to big footpath end crescent, and the line footpath of this spring body is held from the path end to big footpath and is held crescent, the top side of path end support and lean on there being last spring plate, the bottom side of big footpath end support and lean on there being lower spring plate, last spring plate and lower spring plate between be equipped with flexible locating component, just last spring plate and path between holding, still be equipped with circumference location structure between lower spring plate and the big footpath end respectively. When the seat is packed into, the path end of the spring body is up, big footpath end sets up down, the external diameter of the spring body with from the path end to big footpath end crescent, and the line footpath of this spring body is from path end to big footpath end crescent, consequently when the atress on the spring body, the compression of spring body upper portion is very fast, the lower extreme compression is slow, can possess good travelling comfort when sitting and standing, and set up the stability when flexible locating component can improve the compression of the spring body between last spring board and the lower spring board, prevent that the spring body from producing the side direction distortion, structural stability is good.

In foretell reducing line book spring wire, flexible locating component can dismantle the first telescopic link of connecting spring plate one side under last spring plate orientation and can dismantle the second telescopic link of connecting spring plate one side under, the one end of first telescopic link towards the second telescopic link insert and establish in the second telescopic link, just the middle part of second telescopic link open and to have the flexible groove that supplies first telescopic link to stretch into, first telescopic link and second telescopic link between still be equipped with the flexible spacing subassembly that is located flexible inslot. First telescopic link and the setting of pegging graft of second telescopic link axial, the spring body is at flexible in-process, and first telescopic link is at flexible inslot axial reciprocating motion to this prevents that the spring body from producing the side direction distortion.

In foretell reducing coil of wire spring steel wire, flexible spacing subassembly including set up in flexible inslot and with the spacing platform of annular of second telescopic link integral type structure, the circumference outside of first telescopic link be equipped with the spacing seat of annular, just the spacing seat of annular be located the below of the spacing platform of annular in flexible inslot. When the spring body return, spacing platform of annular and the spacing seat of annular can block each other and die to this spacing of realizing the return prevents that first telescopic link and second telescopic link from breaking away from at the return in-process.

In the reducing wire coil spring steel wire, rotary inserting structures are respectively arranged between the first telescopic rod and the upper spring plate and between the second telescopic rod and the lower spring plate.

In foretell reducing coil of wire spring steel wire, rotation type grafting structure including offering the swivelling chute on last spring board and/or lower spring board, the swivelling chute in be equipped with a plurality of rotatory locating pieces that are circumference and arrange, one side of rotatory locating piece open and to have rotatory slot, the tip of first telescopic link and/or second telescopic link be equipped with a plurality of sockets of interval arrangement in the circumferential direction, adjacent rotatory slot interval forms and puts into the hole, and works as the socket stretch into and put into hole and circumferential direction after, the socket inlay in rotatory slot. The outer end of the first telescopic rod or the second telescopic rod is inserted into the bottom of the rotary groove through the insertion hole, then the first telescopic rod or the second telescopic rod is slightly rotated to enable the plug socket to be screwed into the rotary slot on the rotary positioning block, and then fixation and connection are achieved conveniently.

In the reducing coil spring steel wire, the circumferential positioning structure comprises a plurality of positioning grooves arranged on the bottom side of the large-diameter end and the top side of the small-diameter end, and positioning bodies arranged corresponding to the positioning grooves are arranged on the lower spring plate and the upper spring plate. Can realize the circumference location of the spring body through positioning groove and location body, prevent that the spring body from taking place to rotate between last spring board and the lower spring board, improve stability.

In the reducing coil spring steel wire, the circumferential outer side of the spring body is wrapped with a sheath body made of plastics. The sheath body can improve the rust-resistant anti-corrosion performance of the spring body, and the service life is prolonged.

Compared with the prior art, the spring steel wire is rolled up to this reducing line's advantage lies in: reasonable in design, the spring body is formed by the steel wire winding of reducing, and the external diameter of the spring body with from the path end to the path end crescent make spring body anterior segment in-process easily compress, improve the comfort level of seat, the positioning assembly that stretches out and draws back can improve the structural stability of the spring body moreover, prevents that the spring body from taking place the distortion.

Drawings

FIG. 1 is a cross-sectional view of the structure provided by the present invention;

FIG. 2 is an enlarged view of the point A provided by the present invention;

FIG. 3 is an enlarged view of the point B provided by the present invention;

fig. 4 is a schematic view of the upper spring plate and the first telescopic rod provided by the present invention before rotating and inserting;

in the figure, the large-diameter end 1, the small-diameter end 2, the spring body 3, the upper spring plate 4, the lower spring plate 5, the telescopic positioning assembly 6, the circumferential positioning structure 7, the first telescopic rod 8, the second telescopic rod 9, the telescopic groove 10, the telescopic limiting assembly 11, the annular limiting table 12, the annular limiting seat 13, the rotary inserting structure 14, the rotary groove 15, the rotary positioning block 16, the rotary inserting groove 17, the inserting hole 18, the inserting seat 19, the positioning groove 20, the positioning body 21 and the sheath body 22.

Detailed Description

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

As shown in fig. 1-4, the variable diameter wire coil spring steel wire includes a spring body 3 having a large diameter end 1 and a small diameter end 2, the outer diameter of the spring body 3 gradually increases from the small diameter end 2 to the large diameter end 1, the wire diameter of the spring body 3 gradually increases from the small diameter end 2 to the large diameter end 1, the top side of the small diameter end 2 abuts against an upper spring plate 4, the bottom side of the large diameter end 1 abuts against a lower spring plate 5, a telescopic positioning assembly 6 is arranged between the upper spring plate 4 and the lower spring plate 5, and a circumferential positioning structure 7 is respectively arranged between the upper spring plate 4 and the small diameter end 2 and between the lower spring plate 5 and the large diameter end 1.

When the seat is installed, the small diameter end 2 of the spring body 3 faces upwards, the large diameter end 1 faces downwards, the outer diameter of the spring body 3 is gradually increased from the small diameter end 2 to the large diameter end 1, and the wire diameter of the spring body 3 is gradually increased from the small diameter end 2 to the large diameter end 1, so that when the upper end of the spring body 3 is stressed, the upper portion of the spring body 3 is compressed quickly, the lower end is compressed slowly, the seat can have good comfort, and the telescopic positioning assembly 6 arranged between the upper spring plate 4 and the lower spring plate 5 can improve the stability of the spring body 3 in compression, so that the spring body 3 is prevented from generating lateral distortion, and the structural stability is good.

Preferably, flexible locating component 6 can dismantle the first telescopic link 8 of connecting in last spring plate 4 towards spring plate 5 one side down and can dismantle the second telescopic link 9 of connecting in spring plate 5 towards spring plate 4 one side down, first telescopic link 8 is inserted in establishing second telescopic link 9 towards the one end of second telescopic link 9, and the middle part of second telescopic link 9 is opened has the flexible groove 10 that supplies first telescopic link 8 to stretch into, still is equipped with the flexible spacing subassembly 11 that is located flexible groove 10 between first telescopic link 8 and the second telescopic link 9. First telescopic link 8 and the setting of pegging graft of second telescopic link 9 axial, spring body 3 is at flexible in-process, and first telescopic link 8 is in flexible groove 10 internal axial reciprocating motion to this prevents that spring body 3 from producing the side direction distortion.

The telescopic limiting component 11 comprises an annular limiting table 12 which is arranged in a telescopic groove 10 and has an integral structure with the second telescopic rod 9, an annular limiting seat 13 is arranged on the outer side of the circumference of the first telescopic rod 8, the annular limiting seat 13 is positioned below the annular limiting table 12 in the telescopic groove 10, and when the spring body 3 returns, the annular limiting table 12 and the annular limiting seat 13 can be clamped mutually, so that the return is limited, and the first telescopic rod 8 and the second telescopic rod 9 are prevented from being separated in the return process.

Furthermore, a rotary inserting structure 14 is respectively arranged between the first telescopic rod 8 and the upper spring plate 4, and between the second telescopic rod 9 and the lower spring plate 5, the rotary inserting structure 14 comprises a rotary groove 15 arranged on the upper spring plate 4 and/or the lower spring plate 5, a plurality of rotary positioning blocks 16 arranged in the circumferential direction are arranged in the rotary groove 15, one side of each rotary positioning block 16 is provided with a rotary slot 17, the end part of the first telescopic rod 8 and/or the second telescopic rod 9 is provided with a plurality of inserting seats 19 arranged at intervals in the circumferential direction, the adjacent rotary slots 17 are provided with inserting holes 18 at intervals, after the inserting seats 19 extend into the inserting holes 18 and rotate in the circumferential direction, the inserting seats 19 are embedded in the rotary slots 17, the outer ends of the first telescopic rod 8 or the second telescopic rod 9 are inserted into the bottoms of the rotary grooves 15 through the inserting holes 18, and then the first telescopic rod 8 or the second telescopic rod 9 is slightly rotated to enable the inserting seats 19 to be screwed into the rotary slots 17, then realize fixedly, connect conveniently.

Furthermore, the circumferential positioning structure 7 comprises a plurality of positioning grooves 20 arranged on the bottom side of the large-diameter end 1 and the top side of the small-diameter end 2, positioning bodies 21 arranged corresponding to the positioning grooves 20 are arranged on the lower spring plate 5 and the upper spring plate 4, the circumferential positioning of the spring body 3 can be realized through the positioning grooves 20 and the positioning bodies 21, the spring body 3 is prevented from rotating between the upper spring plate 4 and the lower spring plate 5, and the stability is improved.

In addition, the circumference outside parcel of spring body 3 has the sheath body 22 of being made by plastics, and sheath body 22 can improve the rust-resistant corrosion protection performance of spring body 3, increase of service life.

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 large-diameter end 1, the small-diameter end 2, the spring body 3, the upper spring plate 4, the lower spring plate 5, the telescopic positioning assembly 6, the circumferential positioning structure 7, the first telescopic rod 8, the second telescopic rod 9, the telescopic slot 10, the telescopic limiting assembly 11, the annular limiting table 12, the annular limiting seat 13, the rotary inserting structure 14, the rotary slot 15, the rotary positioning block 16, the rotary inserting slot 17, the inserting hole 18, the inserting seat 19, the positioning groove 20, the positioning body 21, the sheath body 22 and the like are used more frequently, 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

1. The utility model provides a reducing wire coil spring steel wire, its characterized in that, is including spring body (3) that have big footpath end (1) and path end (2), the external diameter of spring body (3) with from path end (2) to big footpath end (1) crescent, and the line footpath of this spring body (3) is from path end (2) to big footpath end (1) crescent, the top side of path end (2) support and have last spring plate (4), the bottom side of big footpath end (1) support and have lower spring plate (5), last spring plate (4) and lower spring plate (5) between be equipped with flexible locating component (6), just last spring plate (4) and path end (2) between, still be equipped with circumference location structure (7) between lower spring plate (5) and the big footpath end (1) respectively.

2. The reducing coil spring wire according to claim 1, wherein the telescopic positioning assembly (6) is detachably connected to a first telescopic rod (8) on one side of the upper spring plate (4) facing the lower spring plate (5) and detachably connected to a second telescopic rod (9) on one side of the lower spring plate (5) facing the upper spring plate (4), one end of the first telescopic rod (8) facing the second telescopic rod (9) is inserted into the second telescopic rod (9), a telescopic groove (10) for the first telescopic rod (8) to extend into is formed in the middle of the second telescopic rod (9), and a telescopic limiting assembly (11) located in the telescopic groove (10) is further arranged between the first telescopic rod (8) and the second telescopic rod (9).

3. The reducing coil spring wire according to claim 2, wherein the telescopic limiting assembly (11) comprises an annular limiting table (12) which is arranged in the telescopic groove (10) and is integrated with the second telescopic rod (9), an annular limiting seat (13) is arranged on the circumferential outer side of the first telescopic rod (8), and the annular limiting seat (13) is positioned below the annular limiting table (12) in the telescopic groove (10).

4. The reducing coil spring wire according to claim 2, wherein a rotary splicing structure (14) is respectively arranged between the first telescopic rod (8) and the upper spring plate (4) and between the second telescopic rod (9) and the lower spring plate (5).

5. The reducing coil spring steel wire according to claim 4, wherein the rotary insertion structure (14) comprises a rotary groove (15) formed in the upper spring plate (4) and/or the lower spring plate (5), a plurality of rotary positioning blocks (16) arranged circumferentially are arranged in the rotary groove (15), a rotary insertion slot (17) is formed in one side of each rotary positioning block (16), a plurality of insertion seats (19) arranged at intervals in the circumferential direction are arranged at the end of the first telescopic rod (8) and/or the second telescopic rod (9), insertion holes (18) are formed in adjacent rotary insertion slots (17) at intervals, and when the insertion seats (19) extend into the insertion holes (18) and rotate circumferentially, the insertion seats (19) are embedded in the rotary insertion slots (17).

6. The reducing coil spring wire according to claim 1, wherein the circumferential positioning structure (7) comprises a plurality of positioning grooves (20) formed on the bottom side of the large diameter end (1) and the top side of the small diameter end (2), and positioning bodies (21) corresponding to the positioning grooves (20) are formed on the lower spring plate (5) and the upper spring plate (4).

7. The reducing coil spring wire according to claim 1, wherein the spring body (3) is wrapped with a sheath body (22) made of plastic at the circumferential outer side.