CN215729134U

CN215729134U - Spring core structure

Info

Publication number: CN215729134U
Application number: CN202122135632.7U
Authority: CN
Inventors: 高克胡; 杨高连; 陈士法
Original assignee: Zhejiang Kanghua Glasses Co ltd
Current assignee: Zhejiang Kanghua Glasses Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-01
Anticipated expiration: 2031-09-06

Abstract

The utility model provides a spring core structure, and belongs to the technical field of glasses manufacturing. It has solved the short scheduling problem of current spring core life-span. This spring core structure includes mirror leg portion, the connecting rod, the spring and the core body that is the U-shaped, the end of buckling of core body is passed to the connecting rod, the spring is located between the bipartition fork portion of core body and overlaps on the connecting rod, the mounting hole has been seted up to the preceding terminal surface of mirror leg portion, the end of buckling is located the mounting hole, the mounting hole is stretched out to the tip of the bipartition fork portion of core body, the connecting rod is located the mounting hole and links firmly mutually with mirror leg portion, be equipped with on the connecting rod and supply the spring outer end to support the portion of supporting that leans on, the inner of spring is contradicted in the end of buckling, the spring provides elasticity and makes the core body keep the trend to the displacement of mounting hole inner end. The utility model has the advantages of convenient manufacture, wide application range and the like.

Description

Spring core structure

Technical Field

The utility model belongs to the technical field of glasses manufacturing, and particularly relates to a spring core structure.

Background

The glasses legs and the glasses frame are connected through the elastic hinges in most of the existing glasses, so that clamping force is good, the positions of the glasses legs and the glasses frame can be adjusted after the glasses legs are opened, and wearing is comfortable.

For example, chinese patent literature discloses a detachable spring case hinge structure [ application No.: 201210287290.3, respectively; authorization notice number: CN102778760B ], which comprises a hollow spring case, a U-shaped bifurcated core and a spring, wherein the core is located in the spring case, the core has a common core bending end and two core linear ends with two bifurcated ends, the two core linear ends extend out of the front end surface of the spring case and can be hinged with the front hinge of the spring case, a containing cavity matched with the core is arranged in the spring case, the core linear end is provided with a limit bulge, the containing cavity is a mounting hole formed by opening a hole on the front end surface and extending inwards, the spring is sleeved on a screw passing through the core and fixedly connected with the spring case, the inner wall of the spring case is provided with a threaded hole corresponding to the screw, the core bending end is provided with a through hole for passing through the screw, and the two ends of the spring respectively abut against the core bending end and the head of the screw.

The spring box hinge structure can be detached through the arrangement of the screws and the cores, the use cost is low, but the spring box needs to be welded with the glasses legs, the manufacture is inconvenient, the cores are easy to wear the spring box, the wearing comfort is affected, and the service life is shortened.

Currently, there are also elastic temples for spectacles on the market, which comprise an elastic hinge, a core insert, a leg sleeve and a metal block, wherein the elastic hinge comprises a spring box, a core and a spring. During manufacturing, the elastic hinge is assembled, the spring box is welded on the inserting core, the metal block is welded on the inserting core, the end part of the inserting core far away from the metal block is inserted into the leg sleeve, the metal block plays a role in decoration, the elastic glasses legs of the glasses are complex in structure, the manufacturing process is complex, welding precision is not ideal enough, the service life is short, the inserting core and the leg sleeve are required to be matched for use, the glasses legs are single in form, the existing adaptation of various glasses legs cannot be met, and the application range is small.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a spring core structure which is compact in structure, convenient to manufacture and wide in application range.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a spring core structure, includes shank, connecting rod, spring and the core body that is the U-shaped, the connecting rod pass the end of buckling of core body, the spring be located between the bipartition fork portion of core body and overlap on the connecting rod, its characterized in that, the preceding terminal surface of leg portion seted up the mounting hole, the end of buckling be located the mounting hole, the mounting hole is stretched out to the tip of the bipartition fork portion of core body, the connecting rod be located the mounting hole and link firmly with leg portion mutually, the connecting rod on be equipped with the support portion that supports and lean on of spring outer end, the inner of spring is contradicted in the end of buckling, the spring provides elasticity and makes the core body keep the trend to the displacement of mounting hole inner end.

In the above spring core structure, the abutting portion and the connecting rod are of an integral structure.

In foretell a spring core structure, support the boss that leans on the portion to have for the connecting rod outer end has the radial evagination, the outer terminal surface of boss has the recess, the connecting rod stretch out the inner of core body have the external screw thread and with mirror leg portion threaded connection.

In the above spring core structure, the outer diameter of the external thread in the connecting rod is larger than the aperture of the through hole for the bending end to pass through.

As another case, in the above-mentioned spring core structure, the abutting portion is a radially outward protruding boss provided at the outer end of the connecting rod, the outer end surface of the boss is provided with a groove, and the abutting portion is in threaded connection with the inner wall of the mounting hole. Directly rotating the connecting rod on the plastic or bamboo-wood material glasses leg part, and directly connecting the external thread on the abutting part with the inner wall of the mounting hole by screw thread; when the mirror leg part is made of metal, an internal thread is processed on the inner wall of the mounting hole, and the external thread of the head part is connected with the internal thread of the mounting hole.

In another aspect, in the spring core structure, the connecting rod is riveted to the temple portion. The connecting structure has good connection firmness, when in manufacturing, the outer wall of the connecting rod is provided with an annular groove or a groove, and the glasses leg part is riveted to form a riveting part embedded in the annular groove or the groove; during actual manufacturing, the inner end of the connecting rod is provided with a pier head protruding outwards in the radial direction, the glasses leg part is riveted to form a riveting part riveted to the connecting rod, the pier head prevents the connecting rod from being separated from the glasses leg part, and the connecting rod and the glasses leg part are firmly connected; there are other existing rivet structures, not to mention here.

In the above spring core structure, the front end face of the leg part is fixedly connected with a fixing piece, and the fixing piece is provided with a through hole for extending the two fork parts.

In the above spring core structure, the fixing piece has a limiting groove on the inner wall of the through hole for embedding two sides of the crotch.

In the above spring core structure, the fixing piece is fixedly connected with the front end face of the mirror leg part through insertion.

In the above spring core structure, the fixing piece is fixedly connected with the front end face of the temple portion by bonding. Through glue coating for the stationary blade bonds at the preceding terminal surface of mirror leg portion, connects convenient and firmly.

Compared with the prior art, the spring core structure has the advantages of compact structure, convenient manufacture, convenient assembly and disassembly, wide application range, beautiful appearance and long service life.

Drawings

Fig. 1 is a perspective view of the present spring core structure in embodiment 1.

FIG. 2 is a schematic sectional view of the structure of the longitudinal plane of the present spring core structure in example 1.

FIG. 3 is a schematic sectional view showing the structure of the lateral face of the present spring core structure in example 1.

Fig. 4 is a perspective view of a fixing piece in embodiment 1 of the spring core structure.

FIG. 5 is a structural sectional view of the present spring core structure in embodiment 2.

FIG. 6 is a structural sectional view of the present spring core structure in embodiment 3.

In the figure, 1, temple portion; 11. a convex column; 2. a connecting rod; 21. an abutting portion; 3. a spring; 4. a core body; 41. bending the end; 42. a crotch part; 5. a fixing sheet; 51. and a limiting groove.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, this spring core structure includes mirror leg portion 1, connecting rod 2, spring 3 and core 4 that is the U-shaped, connecting rod 2 passes bending end 41, spring 3 is located between two forks 42 of core 4 and overlaps on connecting rod 2, the mounting hole has been seted up to the preceding terminal surface of mirror leg portion 1, bending end 41 is located the mounting hole, the mounting hole is stretched out to the tip of two forks 42 of core 4, connecting rod 2 is located the mounting hole and links firmly mutually with mirror leg portion 1, be equipped with on the connecting rod 2 and supply the support portion 21 that supports to lean on in spring 3 outer end, the inner of spring 3 is contradicted in bending end 41, spring 3 provides elasticity and makes core 4 keep the trend of displacement to the mounting hole inner end.

Spring box in the past has been saved to this spring core structure, and the mirror leg portion 1 lug machining mounting hole, compact structure, and it is convenient to make, low in manufacturing cost, but core body 4, spring 3 and connecting rod 2 mass production and equipment moreover, can adapt to in various mirror leg portion 1 (mirror leg portion 1 can be made by metal material or plastics material or bamboo wood material according to customer's requirement), and application scope is wide.

In more detail, the abutting part 21 and the connecting rod 2 are of an integrated structure, so that the structure is compact and the manufacture is convenient. In the embodiment, the abutting part 21 is a boss which is arranged at the outer end of the connecting rod 2 and is protruded radially outwards, the outer end face of the boss is provided with a groove, the inner end of the connecting rod 2, which extends out of the core body 4, is provided with an external thread and is in threaded connection with the mirror leg part 1, the groove is a straight groove, a cross groove or a star-shaped groove, the groove is a cross groove in the embodiment, the connecting rod 2 is convenient to assemble and disassemble and is firm to connect by rotating the connecting rod 2 through a screwdriver; when the mirror leg part 1 is made of plastic or bamboo wood, the connecting rod 2 is directly rotated, so that the external thread at the inner end of the connecting rod 2 is directly screwed on the mirror leg part 1; when mirror leg portion 1 is the metal material, processing internal thread hole on mirror leg portion 1, the internal threaded connection of the inner of connecting rod 2 is in the internal thread hole.

The outer diameter of the external thread in the connecting rod 2 is larger than the aperture of the through hole for the bending end 41 to pass through, and the rod body in the middle of the connecting rod 2 is matched in the through hole of the bending end 41 to play a role in guiding. During the equipment, overlap spring 3 earlier on connecting rod 2, through rotating connecting rod 2 for the end 41 is buckled in the extrusion of the external screw thread of connecting rod 2 or rotatory the passing, and the end 41 is buckled in the conflict of the great external screw thread of external diameter, and connecting rod 2 can not break away from the core body 4, and core body 4, spring 3, connecting rod 2 form a module like this, can not be under spring 3's effect and loose the frame, the assembly and the transportation of being convenient for.

The front end face of the glasses leg part 1 is fixedly connected with a fixing piece 5, and the fixing piece 5 is provided with a through hole for the two forked parts 42 to extend out. The fixing piece 5 plays a role in blocking, the fixing piece 5 avoids the end part of the glasses leg part 1 from being worn, the service life is prolonged, when the appearance of the glasses leg part 1 is changed in various ways, only the fixing piece 5 needs to be made into a shape suitable for the front end face of the glasses leg part 1, and the other parts do not need to be reprocessed, so that the manufacturing cost is low, and the application range is wide; stationary blade 5 is made for current wear-resisting material, and stationary blade 5 is the sheetmetal in this embodiment, and shank 1 is the plastics material, and stationary blade 5 not only plays and blocks, wear-resisting effect, and stationary blade 5 has the decorative effect moreover, and the appearance is pleasing to the eye.

Stationary blade 5 has the spacing recess 51 that supplies the embedding of bifurcated portion 42 both sides in the inner wall of through-hole, and spacing recess 51 not only plays the guide effect for 4 simple to operate of core body play limiting displacement moreover, make core body 4 can not rock at the course of the work, wear the travelling comfort good.

The fixing piece 5 is fixedly connected with the front end face of the glasses leg part 1 through insertion. In this embodiment, the fixing plate 5 has a slot, the front end surface of the temple portion 1 has a protruding boss 11, and the boss 11 is inserted into the slot in an interference fit manner, so that the fixing plate 5 is fixedly connected to the front end surface of the temple portion 1; in actual manufacturing, the fixing sheet 5 is provided with two protruding connecting columns in an inverted tower shape on the basis of the slot, the connecting columns are inserted into the front end faces of the glasses leg parts 11, the fixing sheet 5 is connected with the front end faces of the glasses leg parts 1 more stably, and the service life is long; in addition, during actual manufacturing, a slot can be arranged on the front end face of the temple part 1, a convex column 11 is arranged on the fixed sheet 5, and the convex column 11 is inserted into the slot in an interference fit manner, so that the fixed connection of the fixed sheet 5 and the temple part 1 is completed; during actual manufacturing, still can set up open-ended spout in a side of mirror leg portion 1 preceding terminal surface, stationary blade 5 has the grafting portion of adaptation in the spout, inserts the spout through grafting portion for stationary blade 5 and mirror leg portion 1's preceding terminal surface link firmly mutually, and for the structure is firm, mirror leg portion 1 can set up the pit in the inner wall of spout, and grafting portion has the protrusion of protrusion in order to block into the bulge of pit.

Example 2

As shown in fig. 5, this spring core structure includes shank 1, connecting rod 2, spring 3 and the core 4 that is the U-shaped, connecting rod 2 passes end 41 of buckling, spring 3 is located between two forks 42 of core 4 and overlaps on connecting rod 2, the mounting hole has been seted up to the preceding terminal surface of shank 1, end 41 is located the mounting hole of buckling, the mounting hole is stretched out to the tip of two forks 42 of core 4, connecting rod 2 is located the mounting hole and links firmly mutually with shank 1, be equipped with on connecting rod 2 and supply the spring 3 outer end to support the portion 21 of supporting that leans on, spring 3's the inner is contradicted in end 41 of buckling, spring 3 provides elasticity and makes core 4 keep the trend to the displacement of mounting hole inner end.

The support part 21 in this embodiment is a boss which is radially outward protruded and is arranged at the outer end of the connecting rod 2, a groove is arranged on the outer end surface of the boss, an external thread is arranged at the inner end of the connecting rod 2 extending out of the core body 4 and is in threaded connection with the mirror leg part 1, the groove is a cross groove, the connecting rod 2 is rotated by a screwdriver, the connecting rod 2 is convenient to mount and dismount, and the connection is firm.

The outer diameter of the external thread in the connecting rod 2 is larger than the aperture of the through hole for the bending end 41 to pass through, and the rod body in the middle of the connecting rod 2 is matched in the through hole of the bending end 41 and can play a role in guiding; during the equipment, overlap spring 3 earlier on connecting rod 2, through rotating connecting rod 2 for the end 41 is buckled in the extrusion of the external screw thread of connecting rod 2 or rotatory the passing, and the end 41 is buckled in the conflict of the great external screw thread of external diameter, and connecting rod 2 can not break away from the core body 4, and core body 4, spring 3, connecting rod 2 form a module like this, can not be under spring 3's effect and loose the frame, the assembly and the transportation of being convenient for.

Example 3

As shown in fig. 6, the structure and principle of the present embodiment are substantially the same as those of embodiment 2, and there are differences that in the present embodiment, the number of the connecting rods 2 is two and the connecting rods are arranged in parallel, the radially outward protruding boss at the outer end of the connecting rod 2 is the abutting portion 21, the outer end surface of the abutting portion 21 is provided with a cross groove, the inner ends of the two connecting rods 2 extending out of the bending end 41 are both provided with external threads and are both in threaded connection with the temple portion 1, the middle portions of the two connecting rods 2 are adapted to the through hole of the bending end 41 for the through of the bending end 41, so that the guiding effect is achieved, and the displacement of the core body 4 is smooth and stable; during actual manufacturing, the external diameter of external screw thread in connecting rod 2 is greater than the aperture of the through-hole that end 41 supplied it to pass of buckling, through rotating connecting rod 2 like this for the external screw thread extrusion of connecting rod 2 or rotatory pass end 41 of buckling, the great external screw thread of external diameter is contradicted and is buckled end 41, and connecting rod 2 can not break away from core body 4, and core body 4, spring 3, connecting rod 2 form a module, can not be under spring 3's effect and scatter the frame, be convenient for assembly and transportation.

Certainly, in actual manufacturing, if the width of the temple portion 1 is wider, the sizes of the mounting hole and the core body 4 can be increased, more connecting rods 2 penetrate through the core body 4, and the number of the connecting rods 2 is determined according to actual conditions; or a plurality of groups of core bodies 4, springs 3 and connecting rods 2 are arranged in the mounting holes of the glasses leg parts 1, and the number of the groups is determined according to the actual situation; or the front end face of the mirror leg part 1 is provided with a plurality of mounting holes, the number of the mounting holes is determined according to the actual situation, and each mounting hole is internally provided with a core body 4, a spring 3 and a connecting rod 2.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A spring core structure comprises a mirror leg part (1), a connecting rod (2), a spring (3) and a U-shaped core body (4), the connecting rod (2) passes through the bending end (41) of the core body (4), the spring (3) is positioned between the two forked parts (42) of the core body (4) and sleeved on the connecting rod (2), it is characterized in that the front end surface of the mirror leg part (1) is provided with a mounting hole, the bending end (41) is positioned in the mounting hole, the end parts of the two fork parts (42) of the core body (4) extend out of the mounting hole, the connecting rod (2) is positioned in the mounting hole and fixedly connected with the mirror leg part (1), connecting rod (2) on be equipped with support portion (21) that supply spring (3) outer end to support to lean on, the inner of spring (3) is contradicted in end (41) of buckling, spring (3) provide elasticity and make core body (4) keep the trend to the displacement of mounting hole inner end.

2. A spring core construction according to claim 1, characterized in that said abutment (21) is of one-piece construction with the connecting rod (2).

3. A spring core structure according to claim 2, characterized in that the abutting part (21) is a radially outward convex boss provided at the outer end of the connecting rod (2), the outer end surface of the boss is provided with a groove, and the inner end of the connecting rod (2) extending out of the core body (4) is provided with an external thread and is in threaded connection with the mirror leg part (1).

4. A spring core structure according to claim 3, wherein the external thread of the connecting rod (2) has an outer diameter larger than the diameter of the through hole through which the bent end (41) passes.

5. A spring core structure according to claim 2, wherein said abutting portion (21) is a radially outwardly protruding boss provided at the outer end of the connecting rod (2), the outer end surface of the boss is provided with a groove, and said abutting portion (21) is screwed with the inner wall of the mounting hole.

6. A spring core construction according to claim 1, characterized in that the connecting rod (2) is riveted to the temple piece (1).

7. A spring core structure according to any one of claims 1 to 6, wherein the front end face of the mirror leg (1) is fixedly connected with a fixing plate (5), and the fixing plate (5) is provided with a through hole for the two fork parts (42) to extend.

8. A spring core structure according to claim 7, wherein the fixing piece (5) has a limiting recess (51) at the inner wall of the through hole for the insertion of both sides of the bifurcation (42).

9. A spring core structure according to claim 8, characterized in that the fixing plate (5) is fixedly connected with the front end face of the mirror leg (1) by plugging.

10. A spring core structure according to claim 8, characterized in that the fixing plate (5) is fixedly connected with the front end face of the mirror leg (1) by bonding.