阅读说明：本技术 一种交互嵌套式推拉结构 (Interactive nested formula push-and-pull structure ) 是由 张广宇 杜晓兰 赵光甫 于 2021-07-20 设计创作，主要内容包括：一种交互嵌套式推拉结构,包括插头壳体、安装体、连接帽,安装体的头部嵌套在连接帽的内腔、尾部套设在连接帽的外壁,插头壳体头部嵌套在安装体的内腔、尾部嵌套在连接帽的内腔,连接帽上开设有滑槽,安装体头部与尾部的连接部穿设滑动设置在滑槽中。与现有技术相比,该发明的有益之处在于：1、连接帽与安装体交互嵌套式设计,与插头壳体共同形成一个径向稳定结构；2、通过对中间需位移的零件的部分外露设计,提供可施加力的位置,无需增加额外零件和固定结构。(The utility model provides an interactive nested formula push-and-pull structure, includes plug housing, the installation body, connects the cap, and the outer wall of connecting the cap is established to head nestification at the inner chamber of connecting the cap, afterbody cover of installation body, and plug housing head nestification is at the inner chamber of the installation body, afterbody nestification at the inner chamber of connecting the cap, connects and has seted up the spout on the cap, and the installation body head is worn to establish with the connecting portion of afterbody and is slided the setting in the spout. Compared with the prior art, the invention has the advantages that: 1. the connecting cap and the mounting body are designed in an interactive nested manner, and form a radial stable structure together with the plug shell; 2. through the design of partially exposing the part needing to be displaced in the middle, the position where the force can be applied is provided, and no additional part or fixed structure is required to be added.)

1. The utility model provides an interactive nested formula push-and-pull structure, includes plug housing (5), installation body (4), connects cap (2), its characterized in that: the head of the installation body (4) is nested in the inner cavity of the connection cap (2), the tail is nested in the outer wall of the connection cap (2), the head of the plug shell (5) is nested in the inner cavity of the installation body (4), the tail is nested in the inner cavity of the connection cap (2), a sliding groove (202) is formed in the connection cap (2), and the head of the installation body (4) and the connecting portion of the tail are arranged in the sliding groove (202) in a penetrating mode.

2. An interactively nested push-pull configuration according to claim 1 wherein: the mounting body (4) comprises a sliding part (401) and a push-pull part (402), the outer diameter of the sliding part (401) is smaller than the inner diameter of the push-pull part (402), the tail part of the sliding part (401) is located in the inner cavity of the head part of the push-pull part (402), and the sliding part (401) and the push-pull part are connected through a plurality of rib plates (403).

3. An interactively nested push-pull configuration according to claim 2 wherein: the tail of the connecting cap (2) is provided with a plurality of sliding grooves (202), the number of the rib plates (403) is matched with that of the sliding grooves (202), and each rib plate (403) penetrates through the corresponding sliding groove (202) in a sliding mode.

4. An interactively nested push-pull configuration according to claim 2 wherein: the inner wall of the sliding part (401) is provided with a plurality of convex blocks (405) close to the head part, the head part of the plug shell (5) is provided with a plurality of convex block grooves (502) which are in one-to-one correspondence with the convex blocks (405), and the convex blocks (405) are axially arranged in the corresponding convex block grooves (502) in a sliding manner.

5. An interactively nested push-pull configuration according to claim 4 wherein: each lug (405) is provided with a mounting hole (406), and a locking member capable of sliding in the radial direction is nested in each mounting hole (406).

6. An interactively nested push-pull configuration according to claim 2 wherein: the head of the sliding part (401) is a transition part (404), the outer diameter of the transition part (404) is gradually increased from the head to the tail, and the inner cavity of the head of the connecting cap (2) is a transition cavity (203) matched with the transition part (404).

7. An interactively nested push-pull configuration according to claim 2 wherein: the outer wall of the push-pull part (402) is annularly provided with an anti-slip groove (407).

8. An interactively nested push-pull configuration according to claim 2 wherein: the inner wall of the tail portion of the connecting cap (2) is annularly provided with a clamping groove (204), a clamping spring (7) is nested in the clamping groove (204), an annular convex block (503) is annularly arranged on the outer wall, close to the middle position, of the plug shell (5), and the clamping spring (7) is clamped on the outer side face of the annular convex block (503).

9. An interactively nested push-pull configuration according to claim 8 wherein: and an elastic component for applying axial elastic force to the sliding part (401) is sleeved on the outer side of the plug shell (5) between the annular convex block (503) and the tail end face of the sliding part (401).

10. An interactively nested push-pull configuration according to any one of claims 1-9, wherein: the plug-in connector is characterized in that a plug-in hole (201) for inserting the socket shell (1) is formed in the head of the connecting cap (2), an inclined plane groove (101) is formed in the circumferential direction of the outer circumference of the head of the socket shell (1), the plug-in hole (201) is communicated with an inner cavity of the plug shell (5), and the head of the plug shell (5) abuts against the inner end face where the plug-in hole (201) is located.

Technical Field

The invention relates to a push-pull structure, in particular to an interactive nested push-pull structure.

Background

In the nested structure of triple parts, when needs remove the intermediate part, need increase fourth layer ring part to fluting on third layer casing part adopts the screw to fix fourth layer ring part and intermediate level part as an organic whole, just can realize the axial displacement of intermediate level part through the application of force to fourth layer ring part. In order to guarantee axial movement of the middle layer part, the fourth layer part needs to be additionally added, meanwhile, fixing between the fourth layer part and the middle layer part needs to be considered, the structure is relatively complex, and in a small-size structure, the size of a screw and the number of effective thread turns need to be considered.

Disclosure of Invention

Aiming at the technical problem that the middle layer in the triple push-pull structure is inconvenient to push and pull, the invention provides an interactive nested push-pull structure.

The invention provides an interactive nested push-pull structure which comprises a plug shell, an installation body and a connecting cap, wherein the head of the installation body is nested in the inner cavity of the connecting cap, the tail of the installation body is nested on the outer wall of the connecting cap, the head of the plug shell is nested in the inner cavity of the installation body, the tail of the plug shell is nested in the inner cavity of the connecting cap, a sliding groove is formed in the connecting cap, and a connecting part of the head and the tail of the installation body is arranged in the sliding groove in a penetrating and sliding mode.

Furthermore, the installation body comprises a sliding part and a push-pull part, the outer diameter of the sliding part is smaller than the inner diameter of the push-pull part, the tail part of the sliding part is positioned in the inner cavity of the head part of the push-pull part, and the sliding part and the push-pull part are connected through a plurality of rib plates.

Furthermore, a plurality of sliding grooves are formed in the tail portion of the connecting cap, the number of the rib plates is matched with the number of the sliding grooves 202, and each rib plate penetrates through the corresponding sliding groove to slide in the corresponding sliding groove.

Furthermore, a plurality of convex blocks are arranged on the inner wall of the sliding part close to the head part, a plurality of convex block grooves corresponding to the convex blocks one to one are arranged on the head part of the plug shell, and the convex blocks are axially and slidably arranged in the corresponding convex block grooves.

Furthermore, each lug is provided with a mounting hole, and a locking piece which slides in the radial direction is nested in each mounting hole in a sliding manner.

Furthermore, the head of the sliding part is a transition part, the outer diameter of the transition part is gradually increased from the head to the tail, and the inner cavity of the head of the connecting cap is a transition cavity matched with the transition part.

Furthermore, the outer wall of the push-pull part is annularly provided with an anti-slip groove.

Furthermore, a clamping groove is formed in the circumferential direction of the inner wall of the tail portion of the connecting cap, a clamp spring is nested in the clamping groove, an annular convex block is arranged on the circumferential direction of the outer wall, close to the middle position, of the plug shell, and the clamp spring is clamped on the outer side face of the annular convex block.

Furthermore, an elastic component for applying axial elasticity to the sliding part is sleeved on the outer side of the plug shell between the annular convex block and the tail end face of the sliding part.

Furthermore, the head of the connecting cap is provided with a plug-in hole for inserting the socket shell, an inclined plane groove is annularly formed in the outer circumference of the head of the socket shell, the plug-in hole is communicated with the inner cavity of the plug shell, and the head of the plug shell abuts against the inner end face where the plug-in hole is formed.

The purpose of the invention is realized by adopting the following technical scheme. According to the invention, the interactive nested push-pull structure is provided,

compared with the prior art, the invention has the advantages that:

1. the connecting cap and the mounting body are designed in an interactive nested manner, and form a radial stable structure together with the plug shell, so that the plug shell is prevented from deforming;

2. through the design that the part of the part needing to be displaced in the middle is exposed, the position where force can be applied is provided, additional parts and fixing structures are not required to be added, the design of a small shell is realized, and the space limitation of a structural part is avoided.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of an interactive nested push-pull structure according to an embodiment of the present invention in a combined state;

FIG. 2 is a cross-sectional view of FIG. 1 in a separated state;

FIG. 3 is a cross-sectional view of FIG. 1 during insertion;

FIG. 4 is a cross-sectional view of FIG. 1 after insertion into place;

FIG. 5 is a perspective view of the interposer of FIG. 1;

FIG. 6 is an exploded view of the coupling cap and mounting body of FIG. 1;

FIG. 7 is a cross-sectional view of the coupling cap of FIG. 1 assembled with a mounting body;

FIG. 8 is a perspective view of the hub portion of FIG. 1;

FIG. 9 is a cross-sectional view of FIG. 8;

FIG. 10 is a perspective view of the connector cap of FIG. 1;

FIG. 11 is a cross-sectional view of FIG. 10;

FIG. 12 is a perspective view of the mounting body of FIG. 1;

FIG. 13 is a cross-sectional view of FIG. 12;

FIG. 14 is a perspective view of the plug housing of FIG. 1;

FIG. 15 is a cross-sectional view of FIG. 14;

figure 16 shows a triple push-pull configuration with the addition of a fourth layer element.

[ reference numerals ]

1-socket shell, 101-inclined plane groove, 102-positioning key, 103-round angle, 2-connecting cap, 201-inserting hole, 202-sliding groove, 203-transition cavity, 204-clamping groove, 205-annular bulge, 206-positioning groove I, 3-steel ball, 4-installation body, 401-sliding part, 402-push-pull part, 403-rib plate, 404-transition part, 405-lug, 406-installation hole, 407-anti-sliding groove, 5-plug shell, 501-positioning groove II, 502-lug groove, 503-annular lug, 6-ripple spring, 7-circlip, 8-first layer part, 9-middle layer part, 10-third layer part, 11-fourth layer part and 12-screw.

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.

One embodiment of an interactively nested push-pull configuration of the present invention is shown in figures 1 through 15. This embodiment includes socket portion, plug portion, and socket portion includes socket casing 1, and plug portion is including connecting cap 2, steel ball 3, installation body 4, plug casing 5, ripple spring 6, jump ring 7. The socket part and the plug part comprise parts, wherein one end close to the mutual insertion is defined as a head part, and the other end far away from the mutual insertion is defined as a tail part.

The socket housing 1 is provided with an inclined plane groove 101 in the circumferential direction near the head, and the side wall of the inclined plane groove 101 is gentle, so that the steel ball 3 can slide into or out of the inclined plane groove 101 with small force. The positioning key 102 is arranged on the outer circumference between the inclined plane groove 101 and the head, when the socket shell 1 is inserted with the plug part, the positioning key 102 is matched with the positioning groove I206 and the positioning groove II501 on the plug part, so that the relative positions of the plug part and the socket part are uniquely determined. The edge of the outer circumference of the head of the socket housing 1 is provided with a round corner 103

The end face of the connecting cap 2 close to the head is provided with an insertion hole 201 for inserting the socket housing 1, and when the socket housing 1 is inserted, the connecting cap passes through the insertion hole 201 and then enters the inner cavity of the connecting cap. The wall body of the tail part of the connecting cap 2 is provided with sliding grooves 202 along the axial direction, the sliding grooves 202 penetrate through the wall body of the connecting cap 2, in the embodiment, the connecting cap 2 is provided with three sliding grooves 202, the three sliding grooves 202 are uniformly distributed along the circumferential direction, and in other embodiments, the number of the sliding grooves 202 can be determined according to factors such as the size of the structure. The section of the inner cavity of the connecting cap 2 near the insertion hole 201 is a transition cavity 203, the inner diameter of the transition cavity 203 gradually increases from the head to the tail, in this embodiment, the contour line of the transition cavity 203 is a slant line, and in other embodiments, the contour line thereof may also be an arc line. The inner wall of the connecting cap 2 close to the tail part is provided with a clamping groove 204 in the circumferential direction for mounting the clamp spring 7. An annular bulge 205 is arranged on the outer wall corresponding to the inner wall of the position of the clamping groove 204. The inner hole wall of the insertion hole 201 is provided with a positioning groove I206.

The mounting body 4 includes a sliding portion 401 and a push-pull portion 402, both the sliding portion 401 and the push-pull portion 402 are hollow rotators, the inner diameter of the push-pull portion 402 is larger than the outer diameter of the sliding portion 401, and the tail portion of the sliding portion 401 is located in the inner cavity of the head portion of the push-pull portion 402. The outer wall of the tail of the sliding part 401 is fixedly connected with the inner wall of the head of the push-pull part 402 through rib plates 403, in the embodiment, three rib plates 403 are uniformly distributed between the sliding part 401 and the push-pull part 402 and are matched with the sliding grooves 202 in number, the rib plates 403 are not limited to a right-angle structure, and forms such as oblique angle or arc transition can be used. The connecting cap 2 is matched with the mounting body 4, each rib plate 403 is clamped into the corresponding clamping groove 204, the rib plates 403 vertically slide in the clamping grooves 204, the annular protrusions 205 are arranged on the inner wall of the push-pull portion 402 in a sliding mode, the sliding portion 401 is arranged on the inner wall, close to the head, of the connecting cap 2 in a sliding mode, and the mounting body 4 and the connecting cap 2 are nested with each other. The part of the sliding part 401 close to the head is a transition part 404, the transition part 404 is matched with the transition cavity 203, and the outer diameter of the transition part 404 is gradually increased from the head to the tail. The inner wall of the sliding part 401 close to the head is provided with a convex block 405, one end face of the convex block 405 is flush with the end face of the head of the sliding part 401, in this embodiment, three convex blocks 405 are circumferentially distributed along the inner wall, and in other embodiments, the number of the convex blocks 405 can be set as required. Each of the bumps 405 is provided with a mounting hole 406, and the mounting hole 406 penetrates through a wall of the sliding portion 401. The mounting hole 406 is used for mounting a locking member, in this embodiment, the locking member is a steel ball 3, the steel ball 3 can slide in the mounting hole 406, the inner diameter of the opening at the end of the mounting hole 406 is smaller than the inner diameter of the middle part of the mounting hole 406, the steel ball 3 cannot fall from the mounting hole 406 while sliding in the mounting hole 406, and a part of the steel ball 3 can extend out of the opening of the mounting hole 406. The outer contour of the push-pull portion 402 is circumferentially provided with an anti-slip groove 407, which prevents the push-pull portion 402 from slipping when operated.

Plug housing 5 is the hollow solid of revolution in inside, lug groove 502 has been seted up along the axial on the wall body of its head, lug groove 502 runs through plug housing 5's wall body, in this embodiment, plug housing 5 is last to be equipped with three lug groove 502 altogether, match with the quantity of lug 405, plug housing 5 and installation body 4 cooperation, every lug 405 slides and sets up in the lug groove 502 that corresponds, the inner wall of lug 408 and plug housing 5's inner wall parallel and level, be convenient for the socket portion insert in the inner chamber that plug housing 5 and installation body 4 constitute after passing cartridge hole 201. Constant head tank II501 has still been seted up on the wall body of 5 heads of plug casing, when lug 405 slides and sets up in lug groove 502, constant head tank II501 aligns with constant head tank I206, splices into a constant head tank for positioning key 102 inserts the back, realizes the circumference location of plug portion and socket portion, and when socket casing 1 pegged graft with plug portion, positioning key 102 passed constant head tank I206, constant head tank II501 in proper order. An annular convex block 503 is arranged on the outer circumference of the plug housing 5 close to the middle position, the head of the plug housing 5 is matched with the head of the mounting body 4, the outer contour of the tail of the plug housing 5 is matched with the inner wall of the tail of the connecting cap 2, the annular convex block 503 is clamped on one side of the clamping spring 7 close to the head, and meanwhile, the head of the plug housing 5 abuts against the inner end face of the insertion hole 201 in the connecting cap 2, so that the plug housing 5 and the connecting cap 2 are relatively fixed. The corrugated spring 6 is sleeved on the outer contour of the plug housing 5 between the end face of the tail of the sliding part 401 and the end face of one side, close to the head, of the annular convex block 503, the push-pull part 402 is pulled towards the tail, the corrugated spring 6 is compressed, the push-pull part 402 is released, and the mounting body 4 is reset under the elastic force action of the corrugated spring 6. In other embodiments, the wave spring 6 may employ other elastic members, such as a spring.

The number of the grooves for the interactive matching of the parts is not limited to three in the embodiment, and can be adjusted according to the requirement; the rib plates 403 are matched with the slots 204 to realize the sliding between the mounting body 4 and the connecting cap 2, in the embodiment, the number is three to realize the matching, and in other embodiments, the number can be adjusted to other numbers as required; the protrusions 405 and the protrusion slots 502 are mutually matched to realize the sliding between the installation body 4 and the plug housing 1, in this embodiment, the number is three to realize the matching, and in other embodiments, the number can be adjusted to other numbers as required.

In the plug portion of this structure, each component constitutes a multilayer structure, the plug housing 5 is a first layer structure, the mounting body 4 is an intermediate layer structure, and the connection cap 2 is a third layer structure. At the head of the plug part, the mounting body 4 is arranged inside, the connecting cap 2 is arranged outside, at the tail of the plug part, the mounting body 4 is arranged outside, and the connecting cap 2 is arranged inside, so that the mutual nesting is realized. When the socket housing 1 is inserted into the plug portion, the mounting body 4 needs to be retracted to realize insertion, and after the insertion is in place, the mounting body 4 is reset to the original position. When the socket housing 1 and the plug portion need to be separated, a backward pulling force needs to be applied to the push-pull portion 402 of the attachment body 4 to bring the steel ball 3 out of the inclined groove 101, so that the socket housing 1 can be separated from the plug portion. At the afterbody of plug portion, the afterbody of connecting cap 2 is located between plug housing 5 and installation body 4, and plug housing 5 and installation body 4 carry on spacingly to the afterbody of connecting cap 2, guarantee that connecting cap 2 can not take place to warp. In the structure, the connecting cap 2 and the mounting body 4 are in an interactive nested design, and form a radial stable structure together with the plug shell 5, so that the number of parts is reduced, and fasteners are not required to be added; the structure can also realize the design of a small shell without the space limitation of structural parts; the partially exposed design of the middle layer requiring displacement parts, i.e. the push-pull part 402 of the mounting body 4, provides a position where a force can be applied without adding additional parts and fixing structures.

In the natural state of the plug portion, the head of the mounting body 4 abuts against the inner end surface of the insertion hole 201 of the connection cap 2. When the socket housing 1 is inserted into the plug portion, the head of the socket housing 1 is inserted into the insertion hole 201 and then contacts with the steel balls 3, at this time, the radial space between the three steel balls 3 is insufficient, and the steel balls 3 can block the socket housing 1 from advancing. When the axial force applied to the socket housing 1 is gradually increased, the steel ball 3 drives the mounting body 4 to overcome the elastic force of the corrugated spring 6 and slide backwards, the socket housing 1 continues to be plugged, the distance between the transition part 404 and the transition cavity 203 is increased, the steel ball 3 slides to the outer contour of the socket housing 1 along the fillet 103, and meanwhile, the steel ball 3 slides outwards in the radial direction to gradually give way of the space where the socket housing 1 enters. When the steel ball 3 moves to the inclined plane groove 101 of the socket shell 1, the gap between the transition cavity 203 of the connecting cap 2 and the inclined plane groove 101 is enough to accommodate the steel ball 3, the mounting body 4 and the steel ball 3 are not subjected to axial force, the mounting body 4 is reset under the elastic force of the ripple spring 6, and the socket shell 1 is inserted in place at the moment. After the socket shell 1 and the plug part are inserted in place, the installation body 4 is pushed by the corrugated spring 6, so that the backspacing cannot occur, the steel ball 3 is clamped in the inclined plane groove 101 of the socket shell 1, the socket shell 1 is blocked by the steel ball 3 and cannot backspace, and the locking function of the connector using the structure can be ensured through the structure. When the socket housing 1 is separated from the plug portion, the push-pull portion 402 of the mounting body 4 is firstly pinched to move back and drive the steel ball 3 to move back, and when the steel ball 3 moves to the round corner 103 of the socket housing 1, the socket housing 1 is separated from the plug portion. The structure drives the steel ball 3 to move back and forth through the mounting body 4, and the inserting and locking functions of the connector using the structure are realized. The force when the socket shell 1 is inserted into the plug part can be adjusted by adjusting the inclination angle of the transition cavity 203 and the elastic force of the corrugated spring 6; by adjusting the elastic force of the corrugated spring 6, the tensile force for pulling the mounting body 4 when the structure is separated can be adjusted.

The structure does not need a single spring to be matched with a single steel ball, and locking force is provided by a corrugated spring 6; the fixing structure of the steel ball 3 is simple, after the mounting body 4 is provided with the mounting hole 406, the steel ball 3 is prevented from falling off by continuously processing tapered holes at two end parts of the mounting hole 406 on the basis of the mounting hole 406 and limiting the moving space of the steel ball 3 on the inner wall of the shell; the steel ball 3 and the ripple spring 6 are on the same side, so that the steel ball 3 is prevented from being exposed outside. The distance between the transition cavity 203 and the bottom of the inclined plane groove 101 is larger than or equal to the diameter of the steel ball 3, so that the steel ball 3 is inserted in place, and after falling into the inclined plane groove 101, the connecting cap 2 and the socket shell 1 are clamped simultaneously, and the function of automatic locking is realized.

In other embodiments of the present invention, the structures of the plug portion and the socket portion may be interchanged as needed. The plug end of the connector may be configured as a plug portion, or may be configured as a socket end, and the socket end of the corresponding connector may be configured as a socket end or a plug end.

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.