阅读说明：本技术 快插接头机构 (Quick connector mechanism ) 是由 张育诚 于 2019-10-24 设计创作，主要内容包括：本发明公开了一种快插接头机构,包括插头上盖、插头下盖、香蕉接头组件、固定组件和限位组件,所述香蕉接头组件包括香蕉插头,所述香蕉插头包括插头部、焊杯部,所述焊杯部上开设有第一缺口；所述固定组件包括固定架、弹性卡扣部和固定块,所述弹性卡扣部能够穿过所述第一缺口与所述香蕉插头的内壁抵接；所述限位组件包括设置在所述插头上盖内壁上的第一抵接部、设置在所述插头下盖内壁上的第二抵接部,所述第一抵接部和第二抵接部分别与所述固定块的相对两个侧面抵接。本发明至少包括以下优点：采用机械压紧配合力学的自由度约束的结构设计,较好地保证了组装位置的精准性,且有效避免香蕉头部错位的弊端。(The invention discloses a quick connector mechanism which comprises an upper plug cover, a lower plug cover, a banana connector assembly, a fixing assembly and a limiting assembly, wherein the banana connector assembly comprises a banana plug, the banana plug comprises a plug part and a cup welding part, and a first notch is formed in the cup welding part; the fixing component comprises a fixing frame, an elastic clamping part and a fixing block, and the elastic clamping part can penetrate through the first notch to be abutted against the inner wall of the banana plug; the limiting assembly comprises a first abutting part and a second abutting part, the first abutting part is arranged on the inner wall of the upper plug cover, the second abutting part is arranged on the inner wall of the lower plug cover, and the first abutting part and the second abutting part are abutted to two opposite side faces of the fixed block respectively. The invention at least comprises the following advantages: the structural design of freedom degree constraint of mechanical pressing fit mechanics is adopted, the accuracy of an assembling position is better guaranteed, and the defect of head dislocation of bananas is effectively overcome.)

1. A quick connector mechanism comprises an upper plug cover and a lower plug cover which can be buckled with the upper plug cover and form a sealed cavity, and is characterized by also comprising a banana connector component, a fixing component and a limiting component,

the banana joint assembly comprises at least one banana plug capable of being inserted into the sealed cavity, the banana plug comprises a plug part positioned outside the sealed cavity and a welding cup part positioned inside the sealed cavity, and a first notch is formed in the welding cup part;

the fixing component comprises a fixing frame, an elastic buckling part and a fixing block, the elastic buckling part is arranged on one side of the fixing frame, the fixing block is arranged on the other side of the fixing frame, and the elastic buckling part can penetrate through the first notch to be abutted against the inner wall of the banana plug;

the limiting assembly comprises a first abutting part and a second abutting part, the first abutting part is arranged on the inner wall of the upper plug cover, the second abutting part is arranged on the inner wall of the lower plug cover, and the first abutting part and the second abutting part are abutted to two opposite side faces of the fixed block respectively.

2. The quick connector mechanism as claimed in claim 1, wherein the welding cup portion has a second notch, and the second notch is capable of being embedded in the fixing frame.

3. The quick connector mechanism as claimed in claim 1, wherein a first positioning hole is formed at a tail portion of the welding cup portion, and a first positioning post capable of being inserted into the first positioning hole is formed on an inner wall of the plug upper cover.

4. The quick connector mechanism as claimed in claim 3, wherein the resilient locking portion has a slot formed therein, and the side wall of the first positioning post has a locking member insertable into the slot.

5. The quick connector mechanism as claimed in claim 1, wherein the fixing block has a second positioning hole, the inner wall of the upper plug cover has a second positioning post capable of being inserted into the second positioning hole, and the free end of the second positioning post abuts against the inner wall of the lower plug cover.

6. The quick-insertion mechanism according to claim 1, wherein the first abutting portion comprises a plurality of ribs arranged at intervals, and a surface of each rib facing the fixed block abuts against and abuts against a surface of the fixed block.

7. The quick connector mechanism according to claim 5, wherein the second abutting portion includes a plurality of arc-shaped blocks arranged at intervals, an end surface of each arc-shaped block facing the fixed block abuts against and abuts against a surface of the fixed block, and a side wall of the second positioning column can abut against a side wall of the arc-shaped block.

8. The quick connector mechanism as claimed in claim 1, wherein the resilient catch has an outer diameter dimension greater than an inner wall dimension of the banana connector.

9. The quick-connect mechanism as claimed in claim 1, wherein the inner wall of the upper cover of the plug is provided with an inclined curved surface, and the surface of the inclined curved surface abuts against the outer side wall of the banana plug.

Technical Field

The invention relates to the technical field of plugs, in particular to a quick connector mechanism.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The banana connector is gradually applied to the fields of industrial instruments, teaching instruments, electric power tests, radio models, medical instruments, automobile tests, sound equipment and the like due to excellent electrical performance and low price cost.

The banana connector has better use advantages as an expression form of the quick connector. Especially, for the welding cup type banana connector without the screw tooth structure, the structure is simple, and the banana connector is widely applied. At present, the conventional banana connectors are assembled in the plugs in a dispensing and fixing mode, the positions are difficult to control, and the process is troublesome; in addition, in the use process of the plug, if the pulling force is too large, the banana head is easily misplaced, and the plug dispensing position cracks.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a quick connector mechanism which adopts a structural design of freedom degree constraint of mechanical pressing and matching mechanics, so that the accuracy of an assembling position is better ensured, and the defect of head dislocation of bananas is effectively overcome.

The embodiment of the application discloses: a quick connector mechanism comprises an upper plug cover, a lower plug cover which can be buckled with the upper plug cover and forms a sealed cavity, a banana connector component, a fixing component and a limiting component,

the banana joint assembly comprises at least one banana plug capable of being inserted into the sealed cavity, the banana plug comprises a plug part positioned outside the sealed cavity and a welding cup part positioned inside the sealed cavity, and a first notch is formed in the welding cup part;

the fixing component comprises a fixing frame, an elastic buckling part and a fixing block, the elastic buckling part is arranged on one side of the fixing frame, the fixing block is arranged on the other side of the fixing frame, and the elastic buckling part can penetrate through the first notch to be abutted against the inner wall of the banana plug;

the limiting assembly comprises a first abutting part and a second abutting part, the first abutting part is arranged on the inner wall of the upper plug cover, the second abutting part is arranged on the inner wall of the lower plug cover, and the first abutting part and the second abutting part are abutted to two opposite side faces of the fixed block respectively.

Furthermore, a second notch is arranged on the welding cup part, and the second notch can be embedded on the fixing frame.

Furthermore, a first positioning hole is formed in the tail of the welding cup portion, and a first positioning column capable of being inserted into the first positioning hole is arranged on the inner wall of the plug upper cover.

Furthermore, a clamping groove is formed in the elastic clamping part, and a clamping buckle capable of being inserted into the clamping groove is arranged on the side wall of the first positioning column.

Furthermore, a second positioning hole is formed in the fixing block, a second positioning column capable of being inserted into the second positioning hole is arranged on the inner wall of the plug upper cover, and the free end of the second positioning column is abutted to the inner wall of the plug lower cover.

Further, first butt portion includes a plurality of ribs that the interval set up, every the rib orientation the surface of fixed block all with the surface butt laminating of fixed block.

Further, second butt portion includes a plurality of arc pieces that the interval set up, every the arc piece orientation the terminal surface of fixed block all with the laminating of the surperficial butt of fixed block, the lateral wall of second reference column can with the lateral wall butt of arc piece.

Further, the outer diameter of the elastic buckle is larger than the inner wall of the banana joint.

Furthermore, an inclined curved surface part is arranged on the inner wall of the plug upper cover, and the surface of the inclined curved surface part is abutted to the outer side wall of the banana plug.

By means of the technical scheme, the invention has the following beneficial effects: the plug upper cover, the plug lower cover, the banana joint component, the fixing component and the limiting component are buckled with each other in a ring manner, so that the defects caused by the traditional process are effectively overcome; the banana joint assembly is convenient to assemble and position, and the mechanical limiting and clamping structures have stable impact resistance. The problem that axial rotation, angle deflection, plug break away from can effectually be prevented to the finished product that installs at the plug in-process, and simultaneously, a plurality of banana connectors are fixed on same banana connector mount, can concentrate on a module with the combination tolerance, reduce the combination tolerance of the accumulation during the assembly, improve positioning accuracy.

In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of the overall device structure in an embodiment of the present invention;

FIG. 2 is a schematic view of a banana joint in an embodiment of the present invention;

FIG. 3 is a schematic view of the structure at the fixing frame in the embodiment of the present invention;

FIG. 4 is a schematic view of a part of the apparatus in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another part of the device in the embodiment of the invention;

fig. 6 is a schematic structural diagram of an upper cover of the plug in the embodiment of the invention.

Reference numerals of the above figures: 1. the plug is covered; 2. a plug lower cover; 3. banana plugs; 4. a fixed mount; 5. an elastic buckling part; 6. a fixed block; 7. a first abutting portion; 8. a second abutting portion; 9. a second notch; 10. a first positioning hole; 11. a first positioning post; 12. a card slot; 13. a second positioning hole; 14. a second positioning column; 15. an inclined curved surface portion; 31. a plug portion; 32. and welding the cup part.

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.

It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

With reference to fig. 1 to 6, the present embodiment discloses a quick connector mechanism, which includes a plug upper cover, a plug lower cover 2 capable of being fastened to the plug upper cover and forming a sealed cavity, and further includes a banana connector assembly, a fixing assembly, and a limiting assembly. The fixing component and the limiting component are respectively positioned in the sealed cavity and are used for mechanically fixing and limiting the part of the banana connector component inserted into the sealed cavity, the original installation realized by the dispensing process is replaced, and the phenomena of cracking, dislocation and the like of the fixed position of the banana connector component are effectively avoided.

As shown in fig. 1 and 6, the plug upper cover and the plug lower cover 2 are rectangular, and the joints of the two side walls of the tail part are in arc transition, so that the aesthetic property of the shape is increased, the overall hardness can be enhanced, and the structure is optimized. Preferably, the middle of the tail parts of the plug upper cover and the plug lower cover 2 is correspondingly provided with a notch, so that a wire rod positioned in the sealed cavity subsequently penetrates through the sealed cavity to the outside. The edge portion equipartition of plug upper cover is provided with a plurality of lugs, the edge portion equipartition of plug lower cover 2 be provided with to individual with the recess that the lug corresponds the plug upper cover with when the 2 lock of plug lower cover, the lug can insert in the recess, form buckle locking.

Referring to fig. 1 and 2, the banana joint assembly includes at least one banana plug 3 that can be inserted into the sealed cavity, and preferably, three banana plugs 3 are provided. Preferably, three rubber plug equipartition parallel arrangement, and every the banana joint all extends along left right direction. Each banana plug 3 comprises a plug part 31 positioned outside the sealed cavity and a welding cup part 32 positioned inside the sealed cavity, and a first notch is formed in the welding cup part 32. Specifically, the plug portion 31 has a cylindrical shape for plugging an external device. The welding cup portion 32 and the plug portion 31 are integrally formed, the welding structure of the welding cup portion 32 is arc-shaped, and the connecting structure of the welding cup portion 32 close to the plug portion 31 is hollow cylindrical. The first notch is located at the joint of the plug portion 31 and the welding cup portion 32, i.e. at the connecting structure of the welding cup portion 32.

Referring to fig. 1 and 3, the fixing assembly includes a fixing frame 4, an elastic fastening portion 5 disposed on one side of the fixing frame 4, and a fixing block 6 disposed on the other side of the fixing frame 4. Specifically, the fixing frame 4 is long and extends in the front-rear direction, and the size and the material thereof can be adaptively selected according to the needs. The number of the elastic buckling parts 5 is three, preferably, each buckling part is in a circular truncated cone shape with a head part away from the fixed frame 4. The fixing block 6 is provided with two, and every the upper surface of fixing block 6 is relative the inside wall parallel arrangement of plug upper cover, every the lower surface of fixing block 6 is relative the inside wall parallel arrangement of plug lower cover 2.

As shown in fig. 1 to 5, in assembly, three banana plugs 3 are first embedded in the plug lower cover 2, and the mounting positions are preliminarily fixed. The fixing frame 4 is pushed manually or mechanically, so that the three elastic buckling parts 5 are obliquely clamped into the inner cavity of the connecting structure of the welding cup part 32 sequentially through the cup welding mechanism and the first notch of the welding cup part 32, and preferably, the outer diameter of each elastic buckling part is larger than the inner cavity of the connecting structure, so that the banana connector is in interference fit with the elastic buckling parts 5, namely, the elastic buckling parts 5 limit all freedom degrees of the banana connector in mechanical fit, and the banana connector assembly is fixed relative to the fixing assembly.

Referring to fig. 1, 4-6, the limiting assembly includes a first abutting portion 7 disposed on the inner wall of the plug upper cover, and a second abutting portion 8 disposed on the inner wall of the plug lower cover 2. In particular, said first abutment 7 comprises a plurality of ribs arranged at intervals; the second abutting portion 8 includes a plurality of arc-shaped blocks arranged at intervals. Preferably, the rib with plug upper cover integrated into one piece sets up, the arc piece with plug lower cover 2 integrated into one piece sets up, the plug upper cover with plug lower cover 2 can adopt injection moulding, simple process, and is with low costs. Plug upper cover with behind the 2 locks of plug lower cover, every the rib orientation the surface of fixed block 6 all with the laminating of the surface butt of fixed block 6, and every arc piece orientation the terminal surface of fixed block 6 all with the laminating of the surface butt of fixed block 6. Through the arrangement mode, after buckling, the ribs and the arc-shaped blocks apply pressing force on the fixed block 6, so that the fixed block 6 is fixedly arranged relative to the ribs and the arc-shaped blocks, namely the degree of freedom of the fixed block 6 in each direction is restrained; the fixing block 6 and the elastic buckling piece are respectively fixedly arranged on the fixing frame 4, so that the whole fixing assembly is opposite to the plug upper cover and the plug lower cover 2, and the fixing assembly is opposite to the banana plug 3 assembly, so that the banana plug 3 assembly is opposite to the plug upper cover and the plug lower cover 2, and the fixing installation of the integral joint mechanism is better realized by utilizing the principle of mechanical freedom degree constraint and buckle fixation.

Through the foretell the rib with the setting of arc piece, when the quick connector mechanism of this application is receiving the exogenic action, can decompose power betterly to reduce vibrations and the deformation phenomenon because stress concentration produces effectively.

In another alternative embodiment, as shown in fig. 2, a second notch 9 is provided on the welding cup portion 32, and the second notch 9 can be embedded in the fixing frame 4. Preferably, the second notch 9 is provided at a connection of the welding structure and the connection structure of the welding cup portion 32, and the second notch 9 extends in a radial direction of the welding cup portion 32. The banana joint can be established through the second breach 9 inlays on mount 4 to can guarantee at the in-process of installation the mounted position of banana joint Assembly is comparatively accurate.

In another embodiment, as shown in fig. 1 to 4 and 6, a first positioning hole 10 is provided at a tail portion of the welding cup portion 32, and a first positioning column 11 capable of being inserted into the first positioning hole 10 is provided on an inner wall of the plug upper cover. Specifically, the connecting structure of the welding cup portion 32 is provided with a first positioning hole 10 penetrating through the inner and outer side walls thereof, and the first positioning column 11 and the plug upper cover are integrally formed and extend in the vertical direction, so that after the plug upper cover and the plug lower cover 2 are fastened, the first positioning column 11 can be inserted into the first positioning hole 10, and further, the degree of freedom of the banana plug 3 relative to the plug upper cover in the front, rear, left and right directions is limited. Preferably, a slot 12 is formed on the elastic buckling part 5, and a buckle capable of being inserted into the slot 12 is arranged on the side wall of the first positioning column 11. Preferably, the first positioning column 11 may be a cross-shaped column. Through the setting of above-mentioned draw-in groove 12 the cross post is inserted in first locating hole 10, can be right the cross post plays the guide effect, also restricts in the horizontal plane simultaneously the rotation of cross post.

As shown in fig. 1 and fig. 3 to fig. 6, a second positioning hole 13 is formed in the fixing block 6, a second positioning column 14 capable of being inserted into the second positioning hole 13 is disposed on the inner wall of the plug upper cover, and a free end of the second positioning column 14 abuts against the inner wall of the plug lower cover 2. Specifically, the second positioning hole 13 penetrates through the upper and lower surfaces of the fixing block 6. The second positioning column 14 and the plug upper cover are integrally formed and extend in the vertical direction, so that after the plug upper cover and the plug lower cover 2 are buckled, the second positioning column 14 can be inserted into the second positioning hole 13, and further the degree of freedom of the banana plug 3 relative to the plug upper cover in the front direction, the rear direction, the left direction and the right direction is limited. Preferably, the side wall of the second positioning column 14 can abut against the side wall of the arc-shaped block, so that the movement of the second positioning column 14 is guided, and the structure is optimized.

In another embodiment, as shown in fig. 6, an inclined curved surface portion 15 is formed on an inner wall of the plug upper cover, and a surface of the inclined curved surface portion 15 abuts against an outer side wall of the banana plug 3. In the above arrangement, after the plug upper cover and the plug lower cover 2 are fastened, the inclined curved surface portion 15 is attached to the outer side wall of the banana plug 3, so that the banana plug 3 can rotate in a horizontal plane in an effective manner through a mechanical limiting manner.

In the above embodiment, the plug upper cover, the plug lower cover 2, the banana joint component, the fixing component and the limiting component are buckled with each other in a ring manner, so that the defects caused by the traditional process are effectively overcome; the banana joint assembly is convenient to assemble and position, and the mechanical limiting and clamping structures have stable impact resistance. The problem that axial rotation, angle deflection, plug break away from can effectually be prevented to the finished product that installs at the plug in-process, and simultaneously, a plurality of banana connectors are fixed on same banana connector mount 4, can concentrate on a module with the combination tolerance, reduce the combination tolerance of the accumulation during the assembly, improve positioning accuracy.

The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.