阅读说明：本技术 一种便于装配的稳定型弹弓壳及其组装工艺 (Stable slingshot shell convenient to assemble and assembling process thereof ) 是由 黄洪志 于 2021-09-02 设计创作，主要内容包括：本发明公开了一种便于装配的稳定型弹弓壳及其组装工艺,其主要有连接底座、铰链块和弹弓壳体组成,所述连接底座的顶部固定连接有铰链块,且铰链块的内部贯穿有定位柱,并且铰链块的内侧连接有连接芯子,同时定位柱与连接芯子之间为活动连接,所述连接芯子的外侧连接有弹弓壳体；包括：保护层。该便于装配的稳定型弹弓壳及其组装工艺利用连接芯子、定位饰片、伸缩弹簧和导柱机构相互配合,来让组装更为的便捷,且利用定位饰片和弹弓壳体相卡合,来减少芯子摆动的同时,可以有效避免连接芯子意外脱落的情况,并利用弹弓壳体独特的构成,避免打直孔及冲方孔工序,尺寸公差更加稳定,让后续装配更为的便捷。(The invention discloses a stable slingshot shell convenient to assemble and an assembling process thereof, which mainly comprise a connecting base, a hinge block and a slingshot shell, wherein the top of the connecting base is fixedly connected with the hinge block, a positioning column penetrates through the inside of the hinge block, the inner side of the hinge block is connected with a connecting core, meanwhile, the positioning column is movably connected with the connecting core, and the outer side of the connecting core is connected with the slingshot shell; the method comprises the following steps: and a protective layer. This stable form catapult shell convenient to assembly and assembly process utilize and connect core, location plaque, expanding spring and guide pillar mechanism to mutually support, let the equipment more convenient, and utilize location plaque and catapult casing looks block, when reducing the core wobbling, can effectively avoid connecting the unexpected condition that drops of core, and utilize the unique constitution of catapult casing, avoid beating straight hole and towards square hole process, dimensional tolerance is more stable, lets follow-up assembly more convenient.)

1. A stable slingshot shell convenient to assemble mainly comprises a connecting base, a hinge block and a slingshot shell, wherein the hinge block is fixedly connected to the top of the connecting base, a positioning column penetrates through the inside of the hinge block, a connecting core is connected to the inner side of the hinge block, the positioning column is movably connected with the connecting core, and the slingshot shell is connected to the outer side of the connecting core;

it is characterized by comprising:

the protective layer is arranged on the inner wall of the slingshot shell, the bottom of the slingshot shell is connected with a limiting bulge, the bottom of the limiting bulge is connected with a connecting plate in a welding mode, the bottom of the connecting plate is fixedly connected with a connecting lens leg, and the outer wall of the top of the slingshot shell is provided with a connecting groove body;

the first limiting block is fixedly connected to the outer wall of the connecting core, the right side of the connecting core is connected with a connecting block, and the outer side of the connecting block is fixedly connected with a second limiting block;

the positioning decorative sheet is arranged on the right side of the connecting core, the outer wall of the positioning decorative sheet is connected with a telescopic spring, and a guide pillar mechanism is arranged in the telescopic spring;

a process for assembling a stable slingshot shell for ease of assembly, comprising the steps of:

s1: processing the components;

a. firstly, cutting the special-shaped material into a whole with the length of 12mm, the width of 3mm and the height of 3.4mm by using a cutting tool, returning a 45-degree inclination at a position of 10mm at the top right end of the cut special-shaped material, reserving the height of 1mm between the bottom end of an inclined plane and the bottommost part of the special-shaped material, and slotting the bottom of the special-shaped material to finish the processing of the slingshot shell;

b. cutting the connecting core, the connecting block and the positioning decorative sheet according to corresponding sizes by using a laser cutting tool, installing the hinge block with the corresponding size by using a turning tool for processing, and integrally forming the connecting core and the connecting block;

s2, performing primary assembly;

a. nesting the guide post mechanism into the telescopic spring, clamping the right end of the whole formed by the guide post mechanism and the telescopic spring into the left side of the connecting block, and connecting the right end part of the guide post mechanism with the connecting block;

b. then, the left end of the positioning decorative sheet is clamped into a right reserved groove of the connecting core, the left end of the whole body formed by the guide post mechanism and the telescopic spring is abutted against the positioning decorative sheet, and the left end of the guide post mechanism is connected with the positioning decorative sheet to form a stable whole body;

s3, assembling;

a. the assembled stable whole is plugged into the slingshot shell from the bottom opening surface, and the first limiting block and the second limiting block which are arranged on the outer wall of the connecting core and the connecting block are used for limiting installation;

b. when the catapult cannot be pushed, the stable whole body is pushed leftwards, so that the first limiting block and the second limiting block are clamped into the designated positions, the top of the positioning decorative sheet is clamped and fixed with the catapult shell, and the bottom of the catapult shell is packaged by using the connecting plate and the screws;

c. and fixedly connecting the connecting core at the left end of the packaged slingshot shell with the hinge block through the positioning column to finish a finished product.

2. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the connecting core and the connecting block are of a casting integrated structure, the connecting core and the first limiting block are connected with the connecting block and the second limiting block in a welding mode, and the welding height of the first limiting block is higher than that of the second limiting block.

3. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the connecting core and the connecting block form a sliding structure with the slingshot shell through the first limiting block and the second limiting block, and the first limiting block and the second limiting block are symmetrically arranged about the central axis of the connecting core.

4. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the slingshot shell is connected with the protective layer in an adhesive mode, and the protective layer is made of rubber.

5. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the limiting bulges are arranged inside the slingshot shell in a nested mode, and the two limiting bulges are symmetrically arranged about the central axis of the connecting plate.

6. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the guide post mechanism penetrates through the inside of the telescopic spring, and the left end surface of the telescopic spring is mutually attached to the outer surface of the positioning decorative sheet.

7. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the guide pillar mechanism comprises a positioning block, a sliding block, a connecting spring and a hollow block, the sliding block is fixedly connected to the right side of the positioning block, the end portion of the sliding block is connected with the connecting spring, and the hollow block is connected to the outer side of the connecting spring.

8. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 7 wherein: the positioning block forms an elastic telescopic structure with the hollow block through the sliding block and the connecting spring, and the positioning block is connected with the positioning decorative sheet in a clamping manner.

9. A stable slingshot shell for easy assembly and process of assembly as claimed in claim 1 wherein: the locating piece all sets up with connecting spring about the axis symmetry of hollow block, and the left end of connecting spring and the right-hand member of sliding block laminate each other to be integrated setting between locating piece and the sliding block.

Technical Field

The invention relates to the technical field of slingshot shells, in particular to a stable slingshot shell convenient to assemble and an assembling process thereof.

Background

Glasses are the optical device of now commonly used, and glasses can divide into from the usage and decorate glasses and correction glasses, and along with electronic product's popularization, children's myopia probability also increases thereupon, need use myopia glasses to correct, to the glasses course of working, need use the catapult shell, the quality of catapult shell produces the influence to later stage glasses's the experience of wearing.

An antifriction structure of glasses hinge with publication number CN202794745U belongs to glasses manufacturing technical field. It has solved big and can not use laser welding scheduling problem … … of current glasses hinge frictional force this glasses hinge's antifriction structure has advantages such as long service life, product are pleasing to the eye and can laser welding.

This antifriction structure of glasses hinge need beat the straight hole to the catapult shell in the course of working, and need control the precision of punching, when the precision of punching the deviation appears, appears easily in follow-up use, and the condition that the core popped out in the catapult shell, and causes the damage, needs higher machining precision simultaneously, has increased the processing degree of difficulty.

Aiming at the existing problems, innovation is urgently needed on the basis of the original slingshot shell.

Disclosure of Invention

The invention aims to provide a stable slingshot shell convenient to assemble and an assembling process thereof, and aims to solve the problems that in the background art, a slingshot shell needs to be drilled with straight holes in the machining process, the drilling precision needs to be controlled, when the drilling precision is deviated, a core is easy to pop out of the slingshot shell in the subsequent use process, so that the damage is caused, high machining precision is needed, and the machining difficulty is increased.

In order to achieve the purpose, the invention provides the following technical scheme: a stable slingshot shell convenient to assemble and an assembling process thereof are disclosed, wherein the stable slingshot shell is mainly composed of a connecting base, a hinge block and a slingshot shell, the top of the connecting base is fixedly connected with the hinge block, a positioning column penetrates through the inside of the hinge block, the inner side of the hinge block is connected with a connecting core, the positioning column is movably connected with the connecting core, and the outer side of the connecting core is connected with the slingshot shell;

the method comprises the following steps:

the protective layer is arranged on the inner wall of the slingshot shell, the bottom of the slingshot shell is connected with a limiting bulge, the bottom of the limiting bulge is connected with a connecting plate in a welding mode, the bottom of the connecting plate is fixedly connected with a connecting lens leg, and the outer wall of the top of the slingshot shell is provided with a connecting groove body;

the first limiting block is fixedly connected to the outer wall of the connecting core, the right side of the connecting core is connected with a connecting block, and the outer side of the connecting block is fixedly connected with a second limiting block;

the positioning decorative sheet is arranged on the right side of the connecting core, the outer wall of the positioning decorative sheet is connected with a telescopic spring, and a guide pillar mechanism is arranged in the telescopic spring;

a process for assembling a stable slingshot shell for ease of assembly, comprising the steps of:

s1: processing the components;

a. firstly, cutting the special-shaped material into a whole with the length of 12mm, the width of 3mm and the height of 3.4mm by using a cutting tool, returning a 45-degree inclination at a position of 10mm at the top right end of the cut special-shaped material, reserving the height of 1mm between the bottom end of an inclined plane and the bottommost part of the special-shaped material, and slotting the bottom of the special-shaped material to finish the processing of the slingshot shell;

b. cutting the connecting core, the connecting block and the positioning decorative sheet according to corresponding sizes by using a laser cutting tool, installing the hinge block with the corresponding size by using a turning tool for processing, and integrally forming the connecting core and the connecting block;

s2, performing primary assembly;

a. nesting the guide post mechanism into the telescopic spring, clamping the right end of the whole formed by the guide post mechanism and the telescopic spring into the left side of the connecting block, and connecting the right end part of the guide post mechanism with the connecting block;

b. then, the left end of the positioning decorative sheet is clamped into a right reserved groove of the connecting core, the left end of the whole body formed by the guide post mechanism and the telescopic spring is abutted against the positioning decorative sheet, and the left end of the guide post mechanism is connected with the positioning decorative sheet to form a stable whole body;

s3, assembling;

a. the assembled stable whole is plugged into the slingshot shell from the bottom opening surface, and the first limiting block and the second limiting block which are arranged on the outer wall of the connecting core and the connecting block are used for limiting installation;

b. when the catapult cannot be pushed, the stable whole body is pushed leftwards, so that the first limiting block and the second limiting block are clamped into the designated positions, the top of the positioning decorative sheet is clamped and fixed with the catapult shell, and the bottom of the catapult shell is packaged by using the connecting plate and the screws;

c. and fixedly connecting the connecting core at the left end of the packaged slingshot shell with the hinge block through the positioning column to finish a finished product.

Preferably, the connecting core and the connecting block are of a casting integrated structure, the connecting core and the first limiting block as well as the connecting block and the second limiting block are connected in a welding mode, the welding height of the first limiting block is higher than that of the second limiting block, and the first limiting block and the second limiting block are welded on the two sides of the connecting core and the connecting block to limit installation of the connecting core and the connecting block.

Preferably, the connecting core and the connecting block form a sliding structure with the catapult shell through the first limiting block and the second limiting block, the first limiting block and the second limiting block are symmetrically arranged about a central axis of the connecting core, the first limiting block and the second limiting block are utilized to match with the catapult shell, the connecting core and the connecting block are stably positioned, the installation stability is improved, and subsequent assembly is facilitated.

Preferably, the slingshot shell is in adhesive connection with the protective layer, the protective layer is made of rubber, and the protective layer arranged in the slingshot shell is utilized to reduce abrasion of internal devices on the slingshot shell during movement and reduce sound generated during movement.

Preferably, the limiting bulges are arranged inside the slingshot shell in a nested mode, the two limiting bulges are symmetrically arranged about the central axis of the connecting plate, the slingshot shell and the connecting plate are stably assembled by means of the arrangement of the limiting bulges, and assembling stability is improved.

Preferably, the guide post mechanism penetrates through the inside of the telescopic spring, the surface of the left end of the telescopic spring is mutually attached to the outer surface of the positioning decorative sheet, the telescopic spring is supported by the guide post mechanism nested in the telescopic spring, the telescopic spring is prevented from being bent by external force, and the diameter of the guide post mechanism is smaller than that of an inner ring of the telescopic spring, so that the telescopic spring is not influenced in normal extension and retraction when the support is achieved.

Preferably, the guide pillar mechanism includes locating piece, sliding block, coupling spring and hollow block, and the right side fixedly connected with sliding block of locating piece, and the end connection of sliding block has coupling spring to coupling spring's the outside is connected with hollow block.

Preferably, the locating piece passes through the sliding block and the connecting spring constitutes elastic telescopic structure with hollow block, and is connected for the block between locating piece and the location decorative sheet, and through promoting the locating piece, the locating piece drives sliding block and expanding spring and slides in hollow block, and then lets the length of guide pillar mechanism adjust, is convenient for assemble guide pillar mechanism and connecting core and location decorative sheet.

Preferably, the locating piece all sets up with the axis symmetry of connecting spring about hollow block, and the left end of connecting spring and the right-hand member of sliding block laminate each other to for the integration sets up between locating piece and the sliding block, utilize the locating piece of both sides, come to fix a position with first core and location ornament respectively, let the connection of connecting core, connecting block and location ornament more stable.

Compared with the prior art, the invention has the beneficial effects that: the stable slingshot shell convenient to assemble and the assembly process thereof;

1. the telescopic spring and the guide post mechanism which are arranged among the connecting core, the connecting block and the positioning decorative sheet are used for providing stable support for the connecting core, the connecting block and the positioning decorative sheet, the guide post mechanism which penetrates through the telescopic spring is used for playing a supporting effect for the telescopic spring, the telescopic spring is prevented from being bent by external force, and the diameter of the guide post mechanism is smaller than that of an inner ring of the telescopic spring, so that the support is played without influencing the normal extension and retraction of the telescopic spring;

2. the guide post mechanism is convenient to assemble with the guide post mechanism, the connecting core and the positioning decorative sheet, and the assembly difficulty is reduced;

3. the first limiting block and the second limiting block are adopted, the first limiting block and the second limiting block which are arranged on the outer wall of the connecting core and the outer wall of the connecting block are utilized to match the first limiting block and the second limiting block with the slingshot shell, the assembly of the connecting core and the connecting block is simply positioned, and the connecting core is prevented from being separated from the positioning decorative sheet and popping out of the slingshot shell, so that the subsequent assembly is influenced.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the slingshot shell of the present invention;

FIG. 3 is a side view of the connecting structure of the slingshot shell of the present invention;

FIG. 4 is a schematic view of the hinge block and slingshot shell top-down connection of the present invention;

FIG. 5 is a schematic view of the bottom connection structure of the connecting core and the slingshot shell of the present invention;

FIG. 6 is a schematic view of the connection structure of the slingshot shell and the connecting groove body

FIG. 7 is a schematic view of a connecting structure of the connecting core and the first limiting block of the present invention;

FIG. 8 is a schematic view of the positioning decoration plate of the present invention;

fig. 9 is a schematic structural diagram of the guide post mechanism of the present invention.

In the figure: 1. connecting a base; 2. a hinge block; 3. a positioning column; 4. connecting the cores; 5. a slingshot housing; 6. a protective layer; 7. a limiting bulge; 8. a connecting plate; 9. connecting the glasses legs; 10. a first stopper; 11. connecting blocks; 12. a second limiting block; 13. positioning the decorative sheet; 14. a tension spring; 15. a guide post mechanism; 1501. positioning blocks; 1502. a slider; 1503. a connecting spring; 1504. a hollow block; 16. is connected with the groove body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a stable type catapult shell convenient to assemble and an assembling process thereof are mainly composed of a connecting base 1, a hinge block 2 and a catapult shell 5, wherein the top of the connecting base 1 is fixedly connected with the hinge block 2, a positioning column 3 penetrates through the inside of the hinge block 2, the inner side of the hinge block 2 is connected with a connecting core 4, the positioning column 3 is movably connected with the connecting core 4, and the outer side of the connecting core 4 is connected with the catapult shell 5;

the method comprises the following steps:

the protective layer 6 is arranged on the inner wall of the slingshot shell 5, the bottom of the slingshot shell 5 is connected with a limiting bulge 7, the bottom of the limiting bulge 7 is connected with a connecting plate 8 in a welding mode, the bottom of the connecting plate 8 is fixedly connected with a connecting glasses leg 9, and the outer wall of the top of the slingshot shell 5 is provided with a connecting groove body 16;

the first limiting block 10 is fixedly connected to the outer wall of the connecting core 4, the right side of the connecting core 4 is connected with a connecting block 11, and the outer side of the connecting block 11 is fixedly connected with a second limiting block 12;

a positioning ornamental piece 13 which is arranged on the right side of the connecting core 4, the outer wall of the positioning ornamental piece 13 is connected with a telescopic spring 14, and a guide post mechanism 15 is arranged inside the telescopic spring 14;

the connecting core 4 and the connecting block 11 are of a casting integrated structure, the connecting core 4 and the first limiting block 10 are connected in a welding mode, the connecting block 11 and the second limiting block 12 are connected in a welding mode, and the welding height of the first limiting block 10 is higher than that of the second limiting block 12; the connecting core 4 and the connecting block 11 form a sliding structure with the slingshot shell 5 through a first limiting block 10 and a second limiting block 12, and the first limiting block 10 and the second limiting block 12 are symmetrically arranged about a central axis of the connecting core 4;

the first limiting block 10 and the second limiting block 12 arranged on the outer walls of the connecting core 4 and the connecting block 11 are utilized to match the first limiting block 10 and the second limiting block 12 with the slingshot shell 5, so that the connecting core 4 and the connecting block 11 are simply positioned, and the connecting core 4 is prevented from being separated from the positioning decorative sheet 13 and popping up from the slingshot shell 5, and subsequent assembly is prevented from being influenced.

The slingshot shell 5 is connected with the protective layer 6 in an adhesive manner, and the protective layer 6 is made of rubber; the limiting bulges 7 are nested in the slingshot shell 5, and two limiting bulges 7 are symmetrically arranged about the central axis of the connecting plate 8;

utilize the setting of spacing arch 7, let catapult casing 5 and connecting plate 8 stabilize the equipment, increase the equipment stability, protective layer 6 that sets up in catapult casing 5 comes to reduce the wearing and tearing of inside device when moving catapult casing 5, reduces the sound that produces when moving simultaneously.

The guide post mechanism 15 penetrates through the inside of the telescopic spring 14, and the left end surface of the telescopic spring 14 is mutually attached to the outer surface of the positioning decorative sheet 13; the guide post mechanism 15 comprises a positioning block 1501, a sliding block 1502, a connecting spring 1503 and a hollow block 1504, wherein the sliding block 1502 is fixedly connected to the right side of the positioning block 1501, the connecting spring 1503 is connected to the end part of the sliding block 1502, and the hollow block 1504 is connected to the outer side of the connecting spring 1503; the positioning block 1501 and the hollow block 1504 form an elastic telescopic structure through the sliding block 1502 and the connecting spring 1503, and the positioning block 1501 is in clamping connection with the positioning decorative sheet 13; the positioning block 1501 and the connecting spring 1503 are symmetrically arranged about the central axis of the hollow block 1504, the left end of the connecting spring 1503 is attached to the right end of the sliding block 1502, and the positioning block 1501 and the sliding block 1502 are integrally arranged;

utilize the telescopic spring 14 and the guide post mechanism 15 that set up at the connection core 4, between connecting block 11 and the location sequin 13, come to connect the core 4, connecting block 11 and location sequin 13 provide stable support, utilize guide post mechanism 15 that runs through in telescopic spring 14 inside, come to play a supporting effect to telescopic spring 14, avoid telescopic spring 14 to receive the condition that external force appears buckling, and the diameter of guide post mechanism 15 is less than the diameter of telescopic spring 14 inner circle, can not exert an influence to telescopic spring 14's normal flexible when coming to support, through promoting locating piece 1501, locating piece 1501 drives sliding block 1502 and connecting spring 1503 and slides in hollow piece 1504, and then let the length of guide post mechanism 15 adjust, be convenient for assemble guide post mechanism 15 and connection core 4 and location sequin 13, reduce the assembly degree of difficulty.

A process for assembling a stable slingshot shell for ease of assembly, comprising the steps of:

s1: processing the components;

a. firstly, cutting the special-shaped material into a whole with the length of 12mm, the width of 3mm and the height of 3.4mm by using a cutting tool, returning a 45-degree inclination at a position of 10mm at the top right end of the cut special-shaped material, reserving the height of 1mm between the bottom end of an inclined plane and the bottommost part of the special-shaped material, and slotting the bottom of the special-shaped material to finish the processing of the slingshot shell 5;

b. the connecting core 4, the connecting block 11 and the positioning decorative sheet 13 are cut according to corresponding sizes by using a laser cutting tool, the hinge block 2 is installed by using a turning tool according to corresponding sizes for processing, and the connecting core 4 and the connecting block 11 are integrally formed;

s2, performing primary assembly;

a. nesting the guide post mechanism 15 into the telescopic spring 14, clamping the right end of the whole formed by the guide post mechanism 15 and the telescopic spring 14 into the left side of the connecting block 11, and connecting the right end of the guide post mechanism 15 with the connecting block 11;

b. then, the left end of the positioning decorative sheet 13 is clamped into a right reserved groove of the connecting core 4, the left end of the whole formed by the guide post mechanism 15 and the telescopic spring 14 is abutted against the positioning decorative sheet 13, and the left end of the guide post mechanism 15 is connected with the positioning decorative sheet 13 to form a stable whole;

s3, assembling;

a. the assembled stable whole is plugged into the slingshot shell 5 from the bottom opening surface, and the installation is limited by using a first limiting block 10 and a second limiting block 12 which are arranged on the outer walls of the connecting core 4 and the connecting block 11;

b. when the catapult cannot be pushed, the stable whole body is pushed leftwards, so that the first limiting block 10 and the second limiting block 12 are clamped into the designated positions, the top of the positioning decorative sheet 13 is clamped and fixed with the catapult shell 5, and the bottom of the catapult shell 5 is encapsulated by the connecting plate 8 and the screws;

c. and fixedly connecting the connecting core 4 at the left end of the packaged slingshot shell 5 with the hinge block 2 through the positioning column 3 to finish a finished product.

Example (b):

according to fig. 1-9, the connecting core 4 and one end of the connecting block 11 are connected to the telescopic spring 14, and the telescopic spring 14 is connected to the inside of the guide post mechanism 15, so that the positioning block 1501 at one end of the guide post mechanism 15 is engaged with the connecting block 11, and the guide post mechanism 15 and the telescopic spring 14 are pressed, the positioning block 1501 drives the sliding block 1502 and the connecting spring 1503 to slide in the hollow block 1504, so as to adjust the length of the guide post mechanism 15, and simultaneously the positioning tab 13 is engaged into the connecting core 4, and the pressing on the telescopic spring 14 and the guide post mechanism 15 is released, so that the telescopic spring 14 is connected to the positioning tab 13, and simultaneously the left positioning block 1501 of the guide post mechanism 15 is engaged with the positioning tab 13, so as to stabilize the assembly mechanism, the assembly mechanism is inserted from the bottom of the catapult housing 5, and the first stopper 10 and the second stopper 12 are used, the connecting core 4 and the connecting block 11 are limited, when the connecting core is pushed upwards and is not moved, the connecting core is pushed leftwards, the first limiting block 10 and the second limiting block 12 are clamped in the slingshot shell 5, the top of the right side of the positioning decorative sheet 13 is clamped with the slingshot shell 5, the connecting core 4 is stably fixed, and the situation that the connecting core 4 is accidentally popped out in the future use process is effectively avoided;

the inner wall of catapult casing 5 is connected with protective layer 6, reduce between the part and the wearing and tearing between the catapult casing 5, the bottom of catapult casing 5 is connected through spacing arch 7 and connecting plate 8 simultaneously, come to encapsulate catapult casing 5, further fix a position 5 internals of catapult casing, let the internals connect more firm, let simultaneously connect core 4 and hinge block 2 to fix through reference column 3, and hinge block 2 is fixed with connection base 1, connecting plate 8 is fixed with connection mirror foot 9, accomplish the assembly.

Those not described in detail in this specification are within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.