CN217787528U - Inner clamping type spectacle frame slingshot - Google Patents

Abstract

The utility model discloses an inside callipers formula spectacle frame catapult, including fixing the catapult box on the spectacle frame and setting up the pull rod at catapult box inside, the pull rod is including consecutive ear, intermediate lever and spacing head of drawing, spacing head through the anti-process integrated into one piece of riveting on the intermediate lever, under the effect of spring, the position sleeve is contradicted with the ear of drawing and is connected, catapult in be equipped with the mounting hole that supplies the pull rod installation, the profile of drawing the ear is square form, the inside angle groove that is equipped with a plurality of and draws ear surface adaptation of mounting hole drill way inner wall, make and draw ear radial positioning, the position sleeve on be equipped with the shell fragment, the ear of drawing on be equipped with the spacing groove of hidden shell fragment when the shell fragment compression, the inner wall of mounting hole is equipped with the recess with the shell fragment adaptation, after the installation, the shell fragment resets and contradicts and forms spacingly on the recess, the utility model discloses simple structure, the practicality is strong.

Description

Inner clamping type spectacle frame slingshot

Technical Field

The utility model relates to a glasses accessory field especially, relates to inside callipers formula spectacle frame catapult.

Background

Spectacle frame catapult includes catapult box and pull rod, the pull rod includes the intermediate lever and draws the ear, the inside installation cavity that is equipped with of catapult box, a spring for making on the pull rod, the position sleeve is settled in the installation cavity, the installation cavity include with the locating hole of position sleeve adaptation and with draw the spacing hole of ear adaptation, spacing hole in traditional spectacle frame catapult is more big than the locating hole, on the one hand, lead to drawing the great of the size design of ear, it is not pleasing to the eye harmonious, on the other hand, lead to the spring, the size of position sleeve is less, and then lead to the elasticity of spring not enough, the elasticity of spectacle frame catapult is not enough.

Meanwhile, the traditional spectacle frame slingshot needs to be provided with a groove in the inner wall of a mounting hole of a slingshot box, the pull rod is provided with the elastic sheet, so that the installed elastic sheet is limited in the groove, a fixing effect is achieved, and the elastic sheet is easily broken when being compressed and reset.

Disclosure of Invention

An object of the utility model is to prior art's weak point, solve the technical problem among the correlation technique at least to a certain extent, provide a new inside callipers formula spectacle frame catapult in order to reach the purpose of solving current spacing hole than the locating hole big many, shell fragment easily by the scheduling problem of rupture.

In order to solve the technical problem, the technical scheme of the utility model is that: inside callipers formula spectacle frame catapult, including fixing the catapult box on the spectacle frame and setting up the pull rod in catapult box inside, the pull rod is including consecutive ear of drawing, intermediate lever and spacing head, spacing head through anti-riveting technology integrated into one piece on the intermediate lever, the intermediate lever on overlap in proper order and be equipped with position sleeve, spring, the one end and the spacing head of spring are contradicted and are connected, the other end is contradicted with the position sleeve and is connected, under the effect of spring, the position sleeve is contradicted with the ear of drawing and is connected, the catapult box in be equipped with the mounting hole that supplies the pull rod installation, the profile of ear of drawing is square form, and mounting hole drill way inner wall inwards is equipped with the angular groove of a plurality of and ear of drawing surface adaptation, makes ear of drawing radial positioning, the position sleeve on be equipped with the shell fragment, the ear of drawing on be equipped with the spacing groove of hiding the shell fragment when the shell fragment compression, the inner wall of mounting hole is equipped with the recess with the shell fragment adaptation, and after the installation, the shell fragment resets and contradicts and forms spacingly on the recess.

Furthermore, the pull lug is provided with a positioning wedge block, and the slingshot box is provided with a positioning groove matched with the positioning wedge block.

Furthermore, the both sides of position sleeve tip all be equipped with the shell fragment, the both sides inner wall of mounting hole all is equipped with the recess.

Furthermore, the elastic sheet is arc-shaped and strip-shaped, and the groove is arc-shaped.

Furthermore, four angle grooves matched with four corners on the surface of the pull lug are inwards arranged at the hole opening of the mounting hole.

The technical effects of the utility model are mainly embodied in the following aspects: the mounting hole drill way inwards is equipped with four and draws the angular groove of four corner adaptations in ear surface, draws four corners of ear just to insert to four angular grooves in, and then makes and draw ear radial positioning, through the aforesaid design for the location draws spacing hole (the hole that forms between four angular grooves promptly) design of ear little as possible, spacing hole and mounting hole sharing, and then makes the shape of drawing the ear little as possible, material saving on the one hand, on the other hand is more pleasing to the eye. 2: the cover is equipped with the position sleeve in proper order on the intermediate lever, a spring, the one end and the spacing head of spring are contradicted and are connected, the other end is contradicted with the position sleeve and is connected, under the effect of spring, the position sleeve is contradicted with the ear of drawing and is connected, be equipped with the shell fragment on the position sleeve, the inner wall of mounting hole is equipped with the recess with the shell fragment adaptation, through the aforesaid design, make the pull rod after going deep into the mounting hole, the shell fragment resets, the conflict is in the recess, through the spring, a spring, the position sleeve, the ear of drawing is contradicted by the atress in proper order, guarantee pull rod axial positioning, cooperate foretell radial positioning, and then make the pull rod fixed with the catapult box. 3: the pull lug is provided with a limiting groove for hiding the elastic sheet when the elastic sheet is compressed, and the elastic sheet is hidden in the limiting groove when the pull rod stretches into the installation back through the design of the limiting groove, so that the aperture of the installation hole is not required to be opened to be large, and the elastic sheet is compressed in a sufficient space without blocking.

Drawings

Fig. 1 is a schematic structural view of a pull rod.

Fig. 2 is a schematic structural view of the protruding groove of the slingshot box.

Fig. 3 is a schematic structural view of a protruding angular groove of the slingshot box.

Fig. 4 is a schematic view of the combination of the draw bar and the slingshot box of the present invention.

Fig. 5 is a schematic structural view of the positioning sleeve.

Detailed Description

The embodiments of the present invention are described in detail below, and are intended to explain the present invention so as to make the technical solutions of the present invention easier to understand and grasp, but not to be construed as limitations of the present invention.

As shown in fig. 1, 2, 3, 4 and 5: inner clip formula spectacle frame catapult, including fixing catapult box 1 on the spectacle frame and setting up at the inside pull rod 2 of catapult box 1, pull rod 2 is including consecutive ear 21, intermediate lever 22 and spacing head 23, spacing head 23 through turn over rivet technology integrated into one piece on intermediate lever 22, position sleeve 3 and spring 4 overlap in proper order on intermediate lever 22 after, again with spacing head 23 the tip turn over rivet become spacing head 23, intermediate lever 22 on overlap in proper order and be equipped with position sleeve 3, spring 4, the one end and the spacing head 23 conflict of spring 4 are connected, the other end contradict with position sleeve 3 and be connected, under spring 4's effect, position sleeve 3 contradicts with ear 21 and is connected, catapult box 1 in be equipped with the mounting hole 11 that supplies the installation of pull rod 2, mounting hole 11 is used for supplying spacing head 23, spring 4, the installation of position sleeve 3 on the intermediate lever 22, the profile of ear 21 is square, mounting hole 11 drill way inner wall inwards is equipped with a plurality of and draws ear 21 surface adaptation 12, makes draw ear 21 radial 31, the elastic sheet 31, the elastic piece 31 is equipped with the elastic piece 31 after the installation of elastic piece 31, the elastic piece 31 that the elastic piece that compresses the installation hole that compresses and the elastic piece that compresses when mounting hole that the elastic piece that compresses.

The mounting hole 11 drill way inwards be equipped with four with draw the angular groove 12 of ear 21 surface four corners 01 adaptations, draw four corners 01 of ear 21 just insert to four angular grooves 12 in, and then make and draw ear 21 radial positioning, through the above-mentioned design for the spacing hole (the hole that forms between four angular grooves 12) design of locating draw ear 21 is as little as possible, and then makes the shape of drawing ear 21 as little as possible, material saving on the one hand, on the other hand is more pleasing to the eye.

Middle rod 22 on overlap in proper order and be equipped with position sleeve 3, spring 4, the one end of spring 4 is contradicted with spacing head 23 and is connected, the other end is contradicted with position sleeve 3 and is connected, under spring 4's effect, position sleeve 3 with draw ear 21 to contradict and be connected, position sleeve 3 on be equipped with shell fragment 31, the inner wall of mounting hole 11 be equipped with the recess 111 of shell fragment 31 adaptation for pull rod 2 is after deepening mounting hole 11 through above-mentioned design, shell fragment 31 resets, contradicts in recess 111, through spring 4, position sleeve 3, draw ear 21 atress in proper order and contradict, guarantees 2 axial positioning of pull rod, cooperates foretell radial positioning, and then makes pull rod 2 fixed with catapult box 1.

The draw lug 21 on be equipped with location wedge piece 212, the catapult box 1 on be equipped with the constant head tank 112 of location wedge piece 212 adaptation, through the above-mentioned design, draw lug 21 and catapult box 1 when pegging graft, have the effect of direction, still have radial positioning's effect simultaneously, let draw lug 21 can not rotate in mounting hole 11.

The pull lug 21 is provided with a limit groove 211 for hiding the elastic sheet 31 when the elastic sheet 31 is compressed, and through the design of the limit groove 211, when the pull rod 2 extends into the installation position, the elastic sheet 31 is hidden in the limit groove 211, so that the aperture of the installation hole 11 is not required to be larger, and on the other hand, the elastic sheet 31 has enough space to be compressed without blocking.

3 tip both sides of position sleeve all be equipped with shell fragment 31, the both sides inner wall of mounting hole 11 all is equipped with recess 111, positioning effect is more, balanced atress.

The elastic sheet 31 is arc-shaped and long-strip-shaped, so that the installation is convenient, the groove 111 is arc-shaped, and the elastic sheet is convenient to limit.

Of course, the above is only the typical example of the present invention, in addition, the present invention can also have other multiple specific embodiments, and all the technical solutions formed by adopting equivalent replacement or equivalent transformation all fall within the scope of the present invention.

Claims (5)

1. Inside callipers formula spectacle frame catapult, including fixing the catapult box on the spectacle frame and setting up the pull rod in catapult box inside, the pull rod is including consecutive ear, intermediate lever and spacing head of drawing, its characterized in that: spacing head through the anti-technology integrated into one piece of riveting on the intermediate lever, the intermediate lever on the cover in proper order be equipped with position sleeve, spring, the one end and the spacing head of spring are contradicted and are connected, the other end is contradicted with the position sleeve and is connected, under the effect of spring, the position sleeve is contradicted with the lug and is connected, the catapult box in be equipped with the mounting hole that supplies the pull rod installation, the profile of lug is square form, the mounting hole drill way inner wall inwards is equipped with the angular form groove of a plurality of and lug surface adaptation, makes the lug radial positioning, the position sleeve on be equipped with the shell fragment, the lug on be equipped with the spacing groove of hiding the shell fragment when the shell fragment compression, the inner wall of mounting hole be equipped with the recess with the shell fragment adaptation, the installation back shell fragment resets and contradicts and forms spacingly on the recess.

2. The internally-captured spectacle frame slingshot of claim 1, wherein: the draw ear is provided with a positioning wedge block, and the slingshot box is provided with a positioning groove matched with the positioning wedge block.

3. The internally-captured spectacle frame slingshot of claim 1, wherein: the locating sleeve end portions are provided with elastic pieces on two sides, and grooves are formed in the inner walls of two sides of the mounting hole.

4. The internally-captured spectacle frame slingshot of claim 1, wherein: the elastic sheet is arc-shaped and long-strip-shaped, and the groove is arc-shaped.

5. The internally-captured spectacle frame slingshot of claim 1, wherein: the hole opening of the mounting hole is inwards provided with four angular grooves matched with four corners on the surface of the pull lug.

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