阅读说明：本技术 一种螺纹锁紧防松机构及使用该机构的模块化矩形连接器 (Screw locking anti-loosening mechanism and modularized rectangular connector using same ) 是由 贺海洋 苏雯 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种螺纹锁紧防松机构及使用该机构的模块化矩形连接器,防松机构包括插头组件和插座组件,插头组件包括插头导销和固定套,插座组件包括壳体和固定在壳体内的固定件以及装配在固定件外的弹簧,插头导销通过限位机构固定在固定套内；固定套中部的多边形导套和插头导销上的多边形导杆配合使固定套能随插头导销旋转；固定套下部螺纹导套内壁设有螺纹Ⅰ用于和壳体插合端外壁的螺纹Ⅱ配合实现螺纹连接；插头组件与插座组件锁紧状态下弹簧压缩使螺纹Ⅰ和螺纹Ⅱ之间保持顶紧力实现螺纹防松。本发明可以应用于模块化矩形连接器中实现插头、插座连接器的连接及锁紧使模块化矩形连接器应用于高震动环境,实现产品有效锁紧防松脱。(The invention relates to a thread locking anti-loosening mechanism and a modularized rectangular connector using the same, wherein the anti-loosening mechanism comprises a plug assembly and a socket assembly, the plug assembly comprises a plug guide pin and a fixed sleeve, the socket assembly comprises a shell, a fixed piece fixed in the shell and a spring assembled outside the fixed piece, and the plug guide pin is fixed in the fixed sleeve through a limiting mechanism; the polygonal guide sleeve in the middle of the fixed sleeve is matched with the polygonal guide rod on the plug guide pin, so that the fixed sleeve can rotate along with the plug guide pin; the inner wall of the threaded guide sleeve at the lower part of the fixed sleeve is provided with threads I which are used for being matched with threads II on the outer wall of the insertion end of the shell to realize threaded connection; the spring compression makes and keeps the tight power of top between screw thread I and the screw thread II under plug subassembly and socket subassembly locking state and realizes that the screw thread is locking. The invention can be applied to the modularized rectangular connector to realize the connection and locking of the plug connector and the socket connector, so that the modularized rectangular connector is applied to a high-vibration environment, and the effective locking and anti-loosening of the product are realized.)

1. A kind of screw locking anti-loosening mechanism, including the plug assembly and socket assembly opposite-inserting with the plug assembly, characterized by that the plug assembly includes plug guide pin and fixed sleeve, the socket assembly includes the body and fixes the stationary part in the body and assembles the spring in the perimeteric of the stationary part, the middle part of the fixed sleeve is a polygonal guide bush used for cooperating with polygonal guide arm on the plug guide pin so as to the fixed sleeve can rotate along with the plug guide pin while rotating; the lower part of the fixed sleeve is provided with a threaded guide sleeve, and the inner wall of the threaded guide sleeve is provided with threads I which are used for being matched with threads II on the outer wall of the insertion end of the shell in the socket component so as to enable the socket component to be in threaded connection with the plug component; when a spring in the socket assembly is compressed or bounced, the lower end of the fixing piece can axially move in the center of the step I at the bottom of the shell; under plug subassembly and socket subassembly locking state, thereby the spring is in compression state all the time and keeps the tight power in top between messenger's screw thread I and the screw thread II and realize that the screw thread is locking.

2. The thread locking anti-loosening mechanism of claim 1, wherein the plug guide pin is secured within the fixed sleeve against axial displacement by a first stop mechanism and a second stop mechanism; the first limiting mechanism comprises a step II positioned on the plug guide pin and a step III positioned at the bottom of the polygonal guide sleeve, and the second limiting mechanism comprises a locking convex key and a step IV positioned at the upper end of the polygonal guide sleeve.

3. The thread locking anti-loosening mechanism as claimed in claim 2, wherein the upper portion of the fixing sleeve is further provided with a locking ring forming an inclined surface i for cooperating with an inclined surface ii on the locking convex key to further fix the plug guide pin.

4. The thread locking anti-loosening mechanism of claim 1, wherein the cross-sectional shape of the polygonal guide rod is the same as the cross-sectional shape of the inner wall of the polygonal guide sleeve.

5. The thread locking and anti-loosening mechanism as claimed in claim 1, wherein one end of the spring is retained by a fixed end at the upper end of the fixing member, and the other end is retained by a step i at the bottom of the housing.

6. The thread locking and anti-loosening mechanism of claim 5, wherein the fixed end has a hemispherical shape, a tetrahedral shape or a polyhedral shape.

7. The thread locking anti-loosening mechanism as claimed in claim 1, wherein the thread i is provided on an outer wall surface of the thread guide sleeve, and the thread ii is provided on an inner wall surface of the insertion end of the housing.

8. A modularized rectangular connector comprises a plug connector and a socket connector, and is characterized in that the modularized rectangular connector is connected and locked through a thread locking and anti-loosening mechanism, the thread locking and anti-loosening mechanism comprises a plug component and a socket component which is oppositely plugged with the plug component, the plug component is assembled and fixed on a plug connector shell, and the socket component is assembled and fixed on a socket connector shell; the plug assembly comprises a plug guide pin and a fixing sleeve, and the socket assembly comprises a shell, a fixing piece fixed in the shell and a spring assembled on the periphery of the fixing piece;

the middle part of the fixed sleeve is a polygonal guide sleeve which is matched with a polygonal guide rod on the plug guide pin, so that the fixed sleeve can rotate along with the plug guide pin when the plug guide pin rotates; the cross section of the polygonal guide rod is the same as that of the inner wall of the polygonal guide sleeve; the lower part of the fixed sleeve is provided with a threaded guide sleeve, and the inner wall of the threaded guide sleeve is provided with threads I which are used for being matched with threads II on the outer wall of the insertion end of the shell in the socket component so as to enable the socket component to be in threaded connection with the plug component; the plug guide pin is fixed in the fixed sleeve through a first limiting mechanism and a second limiting mechanism and does not generate axial displacement; the first limiting mechanism comprises a step II positioned on the plug guide pin and a step III positioned at the bottom of the polygonal guide sleeve, and the second limiting mechanism comprises a locking convex key and a step IV positioned at the upper end of the polygonal guide sleeve;

one end of a spring in the socket component shell is limited by a fixed end at the upper end of the fixing piece, the other end of the spring is limited by a step I at the bottom of the shell, and the lower end of the fixing piece can axially move in the center of the step I at the bottom of the shell when the spring is compressed or bounced; under plug subassembly and socket subassembly locking state, thereby the spring is in compression state all the time and keeps the tight power in top between messenger's screw thread I and the screw thread II and realize that the screw thread is locking.

9. A modular rectangular connector according to claim 8, wherein the fixed end is hemispherical, tetrahedral or polyhedral.

10. A modular rectangular connector as claimed in claim 8, wherein the screw thread i is provided on an outer wall surface of the screw guide and the screw thread ii is provided on an inner wall surface of the housing insertion end.

Technical Field

The invention relates to the technical field of connectors, in particular to a thread locking anti-loosening mechanism and a modular rectangular connector using the same.

Background

The existing modularized rectangular connector is locked by a thread locking part arranged on the plug connector and the socket connector after being oppositely plugged, and the plug connector and the socket connector are locked while being inserted. This mode only adopts threaded connection and fixed, and the connector only locks through screw thread moment, can lead to the screw thread pine to take off when the product uses under high vibration condition environment, makes product locking inefficacy.

Disclosure of Invention

In order to overcome the defects, the invention provides the thread locking and anti-loosening mechanism and the modular rectangular connector using the same, and the thread locking and anti-loosening mechanism can be applied to the modular rectangular connector to realize the connection and the locking of a plug connector and a socket connector, so that the modular rectangular connector can be applied to a high-vibration environment, and the effective locking and anti-loosening of a product are realized.

The invention solves the technical problem by adopting the following technical scheme, and the screw thread locking and anti-loosening mechanism comprises a plug assembly and a socket assembly which is oppositely inserted with the plug assembly, wherein the plug assembly comprises a plug guide pin and a fixed sleeve, the socket assembly comprises a shell, a fixed piece fixed in the shell and a spring assembled on the periphery of the fixed piece, and the middle part of the fixed sleeve is a polygonal guide sleeve which is matched with a polygonal guide rod on the plug guide pin, so that the fixed sleeve can rotate along with the plug guide pin when the plug guide pin rotates; the lower part of the fixed sleeve is provided with a threaded guide sleeve, and the inner wall of the threaded guide sleeve is provided with threads I which are used for being matched with threads II on the outer wall of the insertion end of the shell in the socket component so as to enable the socket component to be in threaded connection with the plug component; when a spring in the socket assembly is compressed or bounced, the lower end of the fixing piece can axially move in the center of the step I at the bottom of the shell; under plug subassembly and socket subassembly locking state, thereby the spring is in compression state all the time and keeps the tight power in top between messenger's screw thread I and the screw thread II and realize that the screw thread is locking.

Furthermore, the plug guide pin is fixed in the fixed sleeve through a first limiting mechanism and a second limiting mechanism without axial displacement; the first limiting mechanism comprises a step II positioned on the plug guide pin and a step III positioned at the bottom of the polygonal guide sleeve, and the second limiting mechanism comprises a locking convex key and a step IV positioned at the upper end of the polygonal guide sleeve.

Furthermore, the upper part of the fixed sleeve is also provided with a locking ring forming inclined plane I which is used for being matched with an inclined plane II on the locking convex key to further fix the plug guide pin.

Further, the cross section shape of the polygonal guide rod is the same as that of the inner wall of the polygonal guide sleeve.

Furthermore, spring one end is spacing by the stiff end of mounting upper end, and the other end is spacing by step I of casing bottom.

Further, the fixed end is hemispherical, tetrahedral or polyhedral.

Further, screw thread I sets up at screw thread guide pin bushing outer wall face, and screw thread II sets up at casing insertion end internal wall face.

A modularized rectangular connector comprises a plug connector and a socket connector, wherein the modularized rectangular connector is connected and locked through a thread locking and anti-loosening mechanism, the thread locking and anti-loosening mechanism comprises a plug component and a socket component which is oppositely plugged with the plug component, the plug component is assembled and fixed on a plug connector shell, and the socket component is assembled and fixed on a socket connector shell; the plug assembly comprises a plug guide pin and a fixing sleeve, and the socket assembly comprises a shell, a fixing piece fixed in the shell and a spring assembled on the periphery of the fixing piece;

the middle part of the fixed sleeve is a polygonal guide sleeve which is matched with a polygonal guide rod on the plug guide pin, so that the fixed sleeve can rotate along with the plug guide pin when the plug guide pin rotates; the cross section of the polygonal guide rod is the same as that of the inner wall of the polygonal guide sleeve; the lower part of the fixed sleeve is provided with a threaded guide sleeve, and the inner wall of the threaded guide sleeve is provided with threads I which are used for being matched with threads II on the outer wall of the insertion end of the shell in the socket component so as to enable the socket component to be in threaded connection with the plug component; the plug guide pin is fixed in the fixed sleeve through a first limiting mechanism and a second limiting mechanism and does not generate axial displacement; the first limiting mechanism comprises a step II positioned on the plug guide pin and a step III positioned at the bottom of the polygonal guide sleeve, and the second limiting mechanism comprises a locking convex key and a step IV positioned at the upper end of the polygonal guide sleeve;

one end of a spring in the socket component shell is limited by a fixed end at the upper end of the fixing piece, the other end of the spring is limited by a step I at the bottom of the shell, and the lower end of the fixing piece can axially move in the center of the step I at the bottom of the shell when the spring is compressed or bounced; under plug subassembly and socket subassembly locking state, thereby the spring is in compression state all the time and keeps the tight power in top between messenger's screw thread I and the screw thread II and realize that the screw thread is locking.

Further, the fixed end is hemispherical, tetrahedral or polyhedral.

Further, screw thread I sets up at screw thread guide pin bushing outer wall face, and screw thread II sets up at casing insertion end internal wall face.

Compared with the prior art, the invention has the following advantages:

the locking mechanism can realize thread anti-loosening while locking, the plug assembly is in threaded connection with the socket assembly through the locking mechanism after being oppositely inserted, and the spring in the socket assembly is always in a compressed state when the plug assembly and the socket assembly are oppositely inserted in place. Thereby being applied to the connection and the locking that realize plug connector and socket connector among the modularization rectangular connector with this screw locking mechanism and can making modularization rectangular connector be applied to high vibrations environment, realize the effective locking anti-loosening of product.

Drawings

Fig. 1 is a schematic view of the construction of the plug assembly of the present invention.

Fig. 2 is a schematic view of the construction of the receptacle assembly of the present invention.

Fig. 3 is a schematic view of the locked state of the threaded connection of the plug assembly and the receptacle assembly.

Fig. 4 is an enlarged view of a portion a in fig. 3.

FIG. 5 is an example of the application of the threaded anti-loosening mechanism of the present invention to a modular rectangular connector.

FIG. 6 is a cross-sectional view of a modular rectangular connector using the thread lock mechanism of the present invention.

Element and symbol description:

1: plug guide pin, 2: fixed cover, 3: a housing, 4: fixing piece, 5: spring, 6: polygonal guide sleeve, 7: polygonal guide rod, 8: screw thread guide sleeve, 9: thread i, 10: threads II, 11: fixed end, 12: step I, 13: locking tab, 14: bevel i, 15: bevel II, 16: plug guide pin bottom, 17: step II, 18: step iii, 19: step iv, 20: lower end of the fixing member, 21: plug connector, 22: a receptacle connector.

Detailed Description

In order to further illustrate the technical means and technical effects adopted by the present invention, the present invention is described in detail below with reference to the examples.

It should be noted that: the terms indicating the orientation of the upper end, the lower end, etc. described in the present invention are based on the illustrated orientation or positional relationship, and are only for convenience of describing the present invention, and thus, should not be construed as limiting the present invention.

The thread locking anti-loosening mechanism comprises a plug assembly and a socket assembly which is oppositely plugged with the plug assembly, wherein the plug assembly comprises a plug guide pin 1 and a fixing sleeve 2, and the socket assembly comprises a shell 3, a fixing piece 4 fixed in the shell and a spring 5 assembled on the periphery of the fixing piece. The middle part of the fixed sleeve is a polygonal guide sleeve 6, the cross section of the inner wall of the polygonal guide sleeve is polygonal and is matched with a polygonal guide rod 7 on the plug guide pin, and the fixed sleeve can also rotate along with the plug guide pin when a tool is used for rotating the plug guide pin; the cross section of the polygonal guide rod is the same as that of the inner wall of the polygonal guide sleeve. Fig. 1-6 show a hexagonal guide sleeve and a hexagonal guide rod, and the cross section of the inner wall of the guide sleeve and the cross section of the guide rod are hexagonal. The lower part of the fixed sleeve is provided with a thread guide sleeve 8, the inner wall of the thread guide sleeve is provided with a thread I9 which is used for being matched with a thread II 10 on the outer wall of the inserting end of the upper part of the shell in the socket component, so that the socket component is in threaded connection with the thread guide sleeve.

The upper end of the fixing piece is provided with a hemispherical or tetrahedral or other polyhedral fixing end 11 for limiting the upper end of the spring, and the lower end of the spring is limited by a step I12 at the bottom of the shell. The lower end of the fixing member can move axially (up and down) in the center of the step I at the bottom of the housing when the spring in the socket assembly is compressed or bounced open.

Furthermore, the plug guide pin is further provided with a locking convex key 13, the locking convex key is positioned at the upper part of the polygonal guide rod, the upper part of the fixing sleeve is also provided with a locking ring to form an inclined plane I14, and the inclined plane I is matched with an inclined plane II 15 on the locking convex key to further fix the plug guide pin.

The principle of the anti-loosening of the threads of the plug assembly and the socket assembly is as follows: the plug assembly and the socket assembly are oppositely inserted, the inserting end of the socket assembly shell is inserted into the threaded guide sleeve, the plug assembly is rotated to enable the threaded guide sleeve to be screwed with the inserting end on the upper portion of the socket assembly shell for threaded connection, and in the threaded connection process, the bottom 16 of the plug guide pin is close to and presses the fixed end on the fixing piece to enable the spring to be compressed. Under plug subassembly and socket subassembly are inserted and are closed in place and threaded connection locking state, the spring is in compression state all the time and makes the spring have reverse elasticity, because fixed cover and socket subassembly casing are threaded connection, make under the spring force effect in the screw thread guide cover screw thread I9 and casing upper portion insert between the screw thread II 10 of holding the end outer wall tightly all the time and keep great top tension force to realize that the screw thread is locking, difficult pine takes off under high vibrations environment.

Furthermore, the cross section of the inner wall of the polygonal guide sleeve in the middle of the fixed sleeve can also be a polygon such as a quadrangle, a pentagon and the like. The cross section of the polygonal guide rod is the same as that of the inner wall of the polygonal guide sleeve.

Furthermore, the screw thread I can be arranged on the outer wall surface of the screw thread guide sleeve, the screw thread II is arranged on the inner wall surface of the insertion end of the shell, the screw thread guide sleeve is inserted into the insertion end of the shell during locking, and the screw thread connection and locking of the plug assembly and the socket assembly are realized through the screw thread I and the screw thread II.

The plug guide pin of the plug assembly can be limited by a first limiting mechanism and a second limiting mechanism after being assembled in the fixed sleeve, the first limiting mechanism comprises a step II 17 positioned on the plug guide pin and a step III 18 positioned at the bottom of the polygonal guide sleeve, the second limiting mechanism comprises a locking convex key 13 and a step IV 19 positioned at the upper end of the polygonal guide sleeve, and the plug guide pin is fixed in the fixed sleeve through the first limiting mechanism and the second limiting mechanism without axial displacement. After the guide pin is assembled, the locking ring is buckled and pressed towards the inside of the fixing sleeve by using a tool, so that the locking ring forms an inner buckled inclined plane I14 and is matched with an inclined plane II 15 on the locking convex key to further fix the plug guide pin.

The thread locking anti-loosening mechanism of the present invention can be applied to a modular rectangular connector, as shown in fig. 5. The modular rectangular connector includes a plug connector and a receptacle connector. The plug assembly is assembled and fixed on the plug connector shell through the nut, the socket assembly is assembled and fixed on the socket connector shell through the nut, the specific structures of the plug assembly and the socket assembly and the principle of achieving thread looseness prevention are as described above, and repeated description is omitted here. The plug connector and the socket connector are connected and locked through the thread locking anti-loosening mechanism after being plugged, the sectional view of the plug connector and the socket connector is shown in figure 6, the modularized rectangular connector can be prevented from loosening under a high-vibration environment through the thread locking anti-loosening mechanism, and the locking force of a product is reliable.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical spirit of the present invention are still within the technical scope of the present invention without departing from the technical scope of the present invention.