WO2012159229A1

WO2012159229A1 - Connector assembly having thread structure with hand feeling of positioning and plug thereof

Info

Publication number: WO2012159229A1
Application number: PCT/CN2011/001175
Authority: WO
Inventors: 王卫; 李森; 卢明胜; 乔东旭; 陈学永
Original assignee: 中航光电科技股份有限公司
Priority date: 2011-05-24
Filing date: 2011-07-18
Publication date: 2012-11-29

Abstract

A connector assembly having a thread structure with hand-feeling positioning and a mount thereof, wherein the front end of the mount housing (15) is rotationally sleeved with an internal connection nut (21) arranged in an axially-limited position on the mount housing (15); slidingly sleeved upon the periphery of the internal connection nut is an axially-oriented external connection nut (20) provided on the internal connection nut (21) so as to prevent loosening; drive keys (28) extending in the axial direction are circumferencially provided on the inner periphery of the external nut (20), matching keys (31) are circumferencially provided on the outer periphery of the internal connection nut (21) which toothedly engage with the drive keys during the screw-on process of the internal connection nut into the socket housing (40); the front end of the outer periphery of the socket housing (40) is provided with a top pressure step structure (39), which presses against the front end of the external connection nut (20) to ensure the forward movement of the internal connection nut (21) relative to said external connection nut (20) before the internal connection nut (21) screws into the socket housing (40) to the designated position; the outer periphery of the internal connection nut (21) is provided with annular grooves (32) which divide the matching keys (31) into two parts and accommodate the drive keys (28) after the internal connection nut screws into the socket housing (40) to the designated position while the external connection nut presses against the top pressure step structure (39).

Description

Connector assembly with screw structure connected to the sense of position and its plug

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a connector assembly for transmitting a current or a signal, and more particularly to a connector assembly that is locked by a connecting nut and has a sense of connection when placed in position, and the present invention also relates to the connector The plug of the component.

Background technique

In the field of connectors, when the connector components that are interposed are used in a vibrating environment, the plug is easily detached from the socket, causing interruption of current or signal, and in order to make the plug and the socket connection reliable, the existing one The circular connector assembly uses a connecting nut to lock the plug and the socket to prevent the plug and the socket from being disconnected, thereby ensuring the reliability of the connection, as shown in Figures 1 to 4, a connection with a connecting nut locking a plug of the device assembly, the plug includes a plug housing 5, the plug housing 5 has an inner hole penetrating through the front and rear of the housing, and the inner hole of the plug housing 5 is fixedly provided with the plug contact 1 through the insulating member 2, the plug and the socket are inserted One end of the joint is a front end, and the front rotating sleeve of the outer peripheral surface of the plug housing 5 is provided with a connecting nut 4 axially disposed on the plug housing, and the front section of the inner hole of the connecting nut 4 has a front face for the outer circumference of the socket The external thread of the external thread provided by the part. A threaded locking structure 3 is disposed between the connecting nut and the plug housing, and the threaded locking structure 3 includes a fixed ring gear 6 fixedly disposed on an outer circumferential surface of the plug housing 5, and an inner circumferential surface of the fixed ring gear 6 is disposed The inwardly projecting claw 11 , the claw 11 is snapped on the outer circumferential surface of the plug housing 5 and disposed in the annular groove to realize the axial fixing of the fixed ring gear 6 on the plug housing 5 to fix the inner side of the ring gear 6 The circumferential surface is further provided with a rotation stop key groove 12 which is coupled with the rotation stop key provided on the outer circumferential surface of the plug housing 5, and the front end surface of the fixed ring gear 6 and the inner hole wall of the connection nut 4 are protruded inward. The rear side of the positioning ring is press-fitted to achieve the rear end of the connecting nut 4 on the plug housing 5, and the front side of the positioning ring is press-fitted with the raised collar provided on the outer peripheral surface of the plug housing. The connecting nut 4 is disposed on the plug housing 5 by its positioning ring and the axial fit between the collar on the plug housing 5 and the fixed ring gear 6 in the axial direction. The rear side of the inner hole of the connecting nut 4 is slidably provided with a movable ring gear 7 provided on the outer peripheral surface of the movable ring gear 7 with a sliding key 9 slidably engaged with a key groove provided on the inner hole wall of the connecting nut 4, Positioning of the front end face of the movable ring gear 7 and the connecting nut The rear side of the ring is resiliently press-fitted by a corrugated spring 8. The rear end surface of the movable ring gear 7 is provided with triangular end teeth, and the rear end of the fixed ring gear 6 is provided with an everted flip 13 , and the front end surface of the flip 13 is provided with the end teeth 10 on the movable ring gear. The end teeth, when the connecting nut 4 is rotated, the connecting nut drives the movable ring gear to rotate. Since the end teeth of the movable ring gear and the fixed ring gear are triangular, the end teeth of the fixed ring gear push the movable ring gear to make the movement The ring gear compression corrugated spring 8 moves forward, and the end teeth 10 of the movable ring gear are misaligned with the end teeth of the fixed ring gear, so that the connecting nut can be rotated, and the anti-loose structure can make the connecting nut rotate under a certain torque, Prevent the threaded connection between the connecting nut and the socket from loosening in a vibrating environment. When the plug and the socket are inserted, the connecting nut 4 is screwed, and the thread of the connecting nut 4 is engaged with the thread of the socket housing. Under the pushing of the connecting nut, the plug moves to the socket and is engaged with the socket, in order to ensure the plug The socket is inserted into place, and the ribbon is provided on the outer peripheral surface of the socket. When the connector nut completely covers the ribbon, the plug and the socket are already inserted into place, but when the connector assembly is used in a dark place or the connection cannot be observed. When the device is in a small space, it is impossible to judge whether the connector is in place by eye observation. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connector assembly having a threaded structure that is connected to a sense of position to solve the problem in the prior art when a connector assembly that is locked with a connecting nut is used in a dark environment or a small connector cannot be observed. In the space, it is impossible to judge whether the plug and the socket have been connected in place, and at the same time, it is an object of the present invention to provide a plug of the connector assembly.

In order to achieve the above object, the connector assembly of the present invention having a threaded structure connected to the sense of hand adopts the following technical solution: a connector assembly having a threaded structure connected to a positional feel, including a plug and a socket, the plug and the socket passing through respective front ends The plug includes a plug housing, and the socket includes a socket housing, and the front rotating sleeve of the plug housing is provided with an inner connecting nut axially disposed on the plug housing, and the inner hole of the inner connecting nut is connected to the front end The utility model has an internal thread which is screwed to the external thread provided in the front part of the socket housing, and an outer circumferential axial sliding sleeve of the inner connecting nut is provided with an outer connecting cap which is disposed on the inner connecting nut, and the inner peripheral surface of the outer connecting cap An axially extending transmission key is disposed in the circumferential direction, and an outer peripheral surface of the inner connecting nut is circumferentially disposed with a mating key of the inner connecting nut being engaged with the transmission key during the screwing of the socket housing, the socket shell The front part of the outer circumference of the body is provided with the inner connecting nut and the socket housing before and after being screwed into place The top end of the connecting cap is pressed to ensure the inner connecting nut moves forward relative to the outer connecting cap. The outer peripheral surface of the inner connecting nut has an inner connecting nut and a socket which divide the engaging key into two parts. After the housing is screwed into place, the outer connecting cap and the pressing step structure are pressed to receive the receiving ring groove of the transmission key.

The outer connecting cap is disposed on the inner connecting nut through the front retaining structure and the rear retaining structure, and the front retaining structure comprises a front limiting step surface disposed on the outer peripheral surface of the inner connecting nut and facing the front end. a rear limit step surface disposed on the inner circumferential surface of the outer connecting cap toward the rear end, the front limit step surface and the rear limit step surface are elastically press-fitted by the elastic pushing member disposed between the two, and the rear anti-off structure The limit retaining edge is assembled on the rear end of the inner hole of the outer connecting cap, and the limiting retaining edge is press-fitted with the rear end surface of the inner connecting nut.

The front end portion of the outer connecting cap has an end edge that is engaged with the front end surface of the inner connecting nut to prevent the elastic pressing member from being excessively compressed.

The transmission keys are more than one and are evenly distributed on the inner peripheral surface of the outer connecting cap in the circumferential direction, and the rear end of the transmission key is extended with an extension extending to the rear end surface of the outer connecting cap, and the inner circumference of the outer connecting cap The surface is provided with a relief ring groove for separating the extension of the transmission key from the transmission key and accommodating the rear portion of the engagement key when the transmission key is located in the accommodation ring groove, and the limit stop edge is a circlip for the hole, and the hole is used for the hole The circlips are fixedly disposed in the fixing ring grooves provided on the extensions of the respective transmission keys.

A threaded anti-slipping structure is disposed between the inner connecting nut and the plug housing.

The plug of the connector assembly of the present invention having a threaded structure connected to the bit feel adopts the following technical solution:

A plug having a threaded structure connected to a position, the front end of the plug is for mating with an adapted socket, the plug comprises a plug housing, and the front rotating sleeve of the plug housing is provided with an axial limit at the plug housing The inner connecting nut of the upper connecting nut has an internal thread for screwing the external thread provided on the front part of the socket housing, and the outer peripheral axial sliding sleeve of the inner connecting nut is provided with the anti-off setting An outer connecting cap on the connecting nut, the inner peripheral surface of the outer connecting cap is provided with an axially extending transmission key in the circumferential direction, and the outer peripheral surface of the inner connecting nut is circumferentially provided with the inner connecting nut screwed at In the process of the socket housing, the engaging key of the transmission key is engaged with the transmission key, and the outer peripheral surface of the inner connecting nut has the inner connecting nut divided into the front and rear parts by the matching key, and the inner connecting nut is forwarded relative to the outer connecting cap and the socket housing is rotated. Screw in place to accommodate the drive key Accommodate the ring groove.

The front part of the plug housing of the present invention has an inner connecting nut, and the inner connecting nut is axially disposed on the plug housing, and the sliding sleeve on the outer peripheral surface of the inner connecting nut is provided with an anti-off setting. The outer connecting cap on the nut rotates the outer connecting cap when the plug is connected to the socket, and the outer connecting cap is driven by the cooperation between the driving key on the inner peripheral surface and the mating key on the outer peripheral surface of the inner connecting nut The inner connecting nut rotates and cooperates with the external thread of the socket housing, and the inner connecting nut drives the plug and the socket to be inserted, and pushes the outer connecting cap forward, and the front end of the outer connecting cap cooperates with the top pressing structure of the socket housing The rear outer connecting cap is no longer moved to the socket. Due to the snapping of the thread, when the outer connecting cap is screwed, the inner connecting nut will continue to move to the socket. When the plug and the socket are inserted into position, the inner connecting nut is matched. The front part of the key moves to the front of the drive key, the drive key is in the accommodating ring groove, the drive key is no longer engaged with the mating key, even if the outer connecting cap continues to rotate, the inner connecting nut will not continue to move to the socket, the plug is inserted The insertion movement ends, at this time, due to the end of the insertion movement, the insertion force due to the insertion between the plug and the contact of the socket and the relative movement between the plug housing and the socket housing disappears, and the outer connecting cap is rotated. The force required is suddenly reduced, The operator can therefore determine that the plug and socket have been inserted into place. Even if the connector assembly is not visible, it is known that the connector assembly is already in place. When the connector assembly is disengaged, moving the outer connecting cap backward causes the transmission key of the outer connecting cap to engage with the rear portion of the mating key of the inner connecting nut, and the outer connecting cap is reversely rotated to move the inner connecting nut back a certain distance and then Push the outer connecting cap forward all the way to make the drive key and the front part of the mating key bite and rotate the outer connecting cap in reverse until the plug and the socket are completely separated.

The outer connecting cap of the present invention is disposed on the inner connecting nut through the front retaining structure and the rear retaining structure, and the front retaining structure comprises a front limiting step surface disposed on the outer peripheral surface of the inner connecting nut and facing the front end. a rear limit step surface disposed on the inner circumferential surface of the outer connecting cap toward the rear end, the front limit step surface and the rear limit step surface are elastically press-fitted by the elastic pushing member disposed between the two, and the rear anti-off structure The limit retaining edge is assembled on the rear end of the inner hole of the outer connecting cap, and the limiting retaining edge is press-fitted with the rear end surface of the inner connecting nut. Due to the action of the elastic pushing member, the outer connecting cap does not move backward relative to the inner connecting nut without external force, that is, the outer connecting cap is not subjected to the backward pushing enough to overcome the elastic force of the elastic pushing member. In the case of pressure, when the connector assembly is not inserted into place, the transmission key will always engage with the front part of the mating key. Therefore, it is not necessary to push the outer connecting cap forward all the time during the insertion of the plug and the socket, and the operation is convenient. It can also better ensure the reliable insertion of the plug and the socket.

DRAWINGS

Figure 1 is a plug in the prior art;

Figure 2 is a partial enlarged view of A in Figure 1;

Figure 3 is a schematic structural view of the movable ring gear of Figure 1;

Figure 4 is a schematic structural view of the fixed ring gear of Figure 1;

Figure 5 is a schematic structural view of a plug of the present invention;

6 is a schematic structural view of the plug of the present invention with the outer connecting cap and the inner connecting nut removed; FIG. 7 is a schematic perspective view of the plug of the present invention;

Figure 8 is a schematic structural view of the outer connecting cap of Figure 5

Figure 9 is a schematic structural view of the inner connecting nut of Figure 5; Figure 10 is a schematic structural view of the fixed ring gear of Figure 5;

Figure 11 is a schematic structural view of the movable ring gear of Figure 5;

Figure 12 is a schematic view showing the structure of the connector of the connector assembly of the present invention after removing the contact member; Figure 13 is a schematic view showing the operation of the inner connecting nut and the outer connecting cap of the plug of the present invention;

Figure 14 is a schematic view showing the structure of the connector assembly of the present invention after the plug and the socket are inserted.

detailed description

An embodiment of a connector assembly having a threaded structure connected to a positional feel, in Figs. 5 to 14, includes a plug and a socket that can be inserted into each other, and a plug end into which the plug and the socket are inserted is a front end. The socket includes a socket housing 40 in which a socket contact member is fixedly disposed through an insulating member, and a front portion of the outer peripheral surface of the socket housing 40 has an external thread. The plug includes a plug housing 15, the front portion of the plug housing 15 is rotatably fitted with an inner connecting nut 21, and the front portion of the inner bore of the inner connecting nut 21 has an internal thread that is fitted with an external thread of the front end of the socket housing 40. A threaded anti-slipping structure is disposed between the inner connecting nut 21 and the plug housing 15, and the thread securing structure includes a fixed ring gear 16 fixedly disposed on the outer peripheral surface of the plug housing 15, and the inner peripheral surface of the fixed ring gear 16 is disposed. The claw 36 is inwardly suspended, and the claw 36 is engaged in the annular groove 24 provided on the outer circumferential surface of the plug housing 15 to realize the axial fixing of the fixed ring gear 16 on the plug housing 15 to fix the ring gear 16 The inner peripheral surface is further provided with a rotation stop key groove 37 that cooperates with the rotation stop key 25 provided on the outer circumferential surface of the plug housing 15, and the front end surface of the fixed ring gear 16 and the inner hole wall of the inner connecting nut 21 are provided. The rear side of the inwardly projecting positioning ring 34 is press-fitted to achieve a rear end limit of the inner connecting nut 21 on the plug housing 15, and the front side of the positioning ring 34 and the outer peripheral surface of the plug housing 15 are convex. The top ring of the collar 26 is press-fitted, and the inner connecting nut 21 is disposed on the plug housing 15 by axially limiting the positioning ring between the retaining ring and the collar on the plug housing 15 and the fixed ring gear 16 . The rear side of the inner hole of the inner connecting nut 21 is slidably provided with a movable ring gear 18, and the outer peripheral surface of the movable ring gear 18 is provided with a sliding engagement with a guide key groove 33 provided on the inner wall of the inner connecting nut 21. The guide key 38, the front end face of the movable ring gear 18 and the rear side of the positioning ring 34 of the inner connecting nut 21 are elastically press-fitted by the corrugated spring 19. The rear end surface of the movable ring gear 18 is provided with triangular end teeth, and the rear end of the fixed ring gear 16 is provided with an everted flip 35, and the front end surface of the flip 35 is provided with the end teeth on the movable ring gear. End teeth, when connecting the nut 21 in the rotation, the inner connection The nut drives the movable ring gear to rotate. Since the end teeth of the movable ring gear and the fixed ring gear are triangular, the end teeth of the fixed ring gear push the movable ring gear so that the movable ring gear compression corrugated spring 19 moves forward, and the movable ring gear moves forward. The end teeth are misaligned with the end teeth of the fixed ring gear, so that the inner connecting nut can be rotated. The anti-loose structure allows the inner connecting nut to rotate under a certain torque, thereby preventing the threaded connection between the inner connecting nut and the socket. Loosen in a vibrating environment.

The outer connecting nut 21 is axially slidably sleeved with an outer connecting cap 20, and the outer connecting cap 20 is disposed on the inner connecting nut 21, and the outer peripheral surface of the inner connecting nut 21 is provided with a front limit toward the front end. The step surface, the inner peripheral surface of the outer connecting cap 20 is provided with a rear limiting step surface facing the rear end, and the front limiting step surface and the rear limiting step surface are limitedly engaged to prevent the outer connecting cap 20 from being connected by the inner connecting nut 21 The rear end of the outer connecting cap 20 is mounted with a hole retaining spring 17 at the rear end of the outer connecting cap 20, and the hole retaining cap 17 is engaged with the rear end surface of the inner connecting nut 21 to prevent the outer connecting cap 20 from being connected by the inner connecting nut. The front end of 21 is taken off. When the plug and the socket are inserted, the outer connecting cap 20 is moved by the cooperation between the retaining cap and the rear end surface of the inner connecting nut 21 to drive the inner connecting screw forward and the socket.

A transmission key 28 is disposed on the circumferential surface of the inner hole of the outer connecting cap 20 in the circumferential direction, and the transmission key 28 extends in the axial direction. The outer peripheral surface of the inner connecting nut 21 is provided with a mating key 31 engaged with the transmission key 28, and the matching key The accommodated ring groove 32 is divided into front and rear portions, and the accommodation ring groove 32 can accommodate the lower drive key 28.

The front portion of the socket housing 40 is provided with a pressing step structure formed by a pressing step surface 39 toward the front end. The pressing step surface 39 is press-fitted with the front end portion of the outer connecting cap 20 during the insertion of the plug and the socket. . When the plug is inserted into the socket, the outer connecting cap 20 is held so that the plug is close to the socket and pushes the outer connecting cap 20 forward while screwing the outer connecting cap 20, and the outer connecting cap 20 passes the transmission key 28 and the mating key 31. The cooperation between the front portions drives the inner connecting nut 21 to rotate, and pushes the inner connecting nut forward through the rear retaining structure between the front connecting nut 21 and the inner connecting nut 21 so that the inner connecting nut 21 is screwed to the socket housing. In the body, the plug and the socket enter the mating state under the pushing of the inner connecting nut, and the front end of the outer connecting cap is pressed against the pressing step surface 39 of the socket housing 40, and the outer connecting is performed as the insertion movement is deepened. The cap is no longer moved forward, only rotates. When the outer connecting cap is pressed against the top pressing step, the inner connecting nut will move forward relative to the outer connecting cap and continue to tighten with the socket housing. The relative movement distance between the cap and the outer connecting cap reaches one When quantifying, the drive key is separated from the front part of the mating key, and the drive key enters the accommodating ring groove. Even if the outer connecting cap continues to rotate, the inner connecting nut will not continue to rotate, and the plug and the socket are inserted into position.

As a modification of the above embodiment, the rear end of the transmission key 28 has an extending extension, and the extension of the transmission key 28 and the transmission key 28 is divided into two parts by the avoidance ring groove 29, and the escape ring groove 29 can accommodate the lower engagement key 31. The latter part. At the beginning of the insertion movement of the plug and socket, the extension of the drive key engages with the rear portion of the mating key, which together with the drive key causes the inner connecting nut to rotate. When the plug and the socket are inserted into position, the transmission key is in the receiving ring groove, the rear part of the matching key is in the escape ring groove, and the rear part of the transmission key is also separated from the rear part of the matching key, and the outer connecting cap no longer drives the inner connection. The nut rotates. The fixing ring groove 30 of the hole circlip 17 is provided on the extension of the transmission key, so that the radial size of the hole circlip can be reduced, and at the same time, since the fixing ring groove is provided on the extension of the transmission key, the outer connecting cap is not required. The thickness is thickened to provide a fixed ring groove, which reduces the radial dimension of the entire plug.

As an improvement of the above embodiment, between the front limiting step surface and the rear limiting step surface, an elastic pressing member 22 is provided on the outer circumferential surface of the inner connecting nut 21, and the front limiting step surface and the rear limiting step step are provided. The surface is elastically press-fitted by the elastic pressing member. Under the action of the elastic pressing member, the hole of the rear end of the inner hole of the outer connecting cap is also press-fitted with the rear end surface of the inner connecting nut by the retaining spring 17 . Thus, the outer connecting cap of the plug does not move backwards relative to the inner connecting nut, and the outer connecting cap is not pushed forward when the plug is inserted into the socket.

The elastic pusher 22 has one or more corrugated springs, and a spacer is disposed between the adjacent two corrugated springs.

The elastic pushing member in the above embodiment may also be a common spring.

As a modification of the above embodiment, the front end portion of the outer connecting cap 20 has an inturned end edge 23, and the end edge 23 is rearwardly connected to the inner connecting nut when the outer connecting cap compressing the corrugated spring is moved rearward relative to the inner connecting nut The face fit prevents the end edge 23 from being excessively compressed to protect the corrugated spring from failure due to excessive compression.

The limit stop in the above embodiment is a circlip for the hole, and may also be a stop screwed to the rear end of the inner hole of the outer connecting cap. In this case, the extension of the transmission key may not be provided.

When the plug and the socket have a plurality of contacts, in order to protect the plug and the socket contact, the plug The front end portion of the outer peripheral surface of the casing 15 is provided with an anti-missing key 27, and five anti-missing keys 27 are disposed on the outer peripheral surface of the plug housing, and the anti-missing key 27 is inserted into the socket and the socket. The anti-missing keyway provided on the inner wall of the body cooperates.

When the preferred embodiment of the above technical solution is inserted, the plug is inserted into the socket, and the outer connecting cap is rotated. The hole of the outer connecting cap is pushed by the circlip to push the inner connecting nut to move the plug forward, and the outer connecting cap is rotated at the same time. The connecting cap drives the inner connecting nut to rotate by the matching drive of the transmission key and the mating key, so that the screw is rotated on the socket housing, and the front end of the outer connecting cap is pressed against the pressing step surface no longer before the insertion is deepened. Move, the inner connecting nut continues to move forward relative to the outer connecting cap. When the plug is in place, the transmission key moves into the receiving ring groove, and the rear part of the matching key moves into the avoiding ring groove, the front part of the transmission key and the mating key Separating, the extension of the drive key is separated from the rear portion of the mating key, and the inner connecting nut no longer rotates with the outer connecting cap. In actual engineering, since the parts of the plug are not rigid bodies, when the plug and the socket are inserted into position, the inner connecting nut does not move forward with respect to the outer connecting cap as the outer connecting cap rotates, but when the outer connecting cap is reversed When the inner connecting nut rotates with the outer connecting cap and is separated from the socket housing, in order to prevent this, the inner connecting nut does not rotate with the outer connecting cap and moves forward relative to the outer connecting cap, Pushing the outer connecting cap to move back against the elastic force of the elastic pushing member and causing the driving key to engage with the rear portion of the mating key, while rotating the outer connecting cap to move the inner connecting nut forward by a smaller distance, and then placing When the outer cap is opened, the drive button and the mating button are completely disengaged. The inner connecting nut will not rotate with the outer connecting cap. When the plug and the socket need to be separated, the outer connecting cap can be pulled back. Engage the transmission key with the rear part of the mating key, rotate the outer connecting cap, and make the inner connecting nut retreat a certain distance, and release the outer connecting cap, under the action of the elastic pushing member, the external connection The cap nut with respect to the forward connection, the front portion of the drive key engages with a mating key nature, continued rotation of the outer cap is connected to the plug and the receptacle separated. Here, the front end of the outer connecting cap is in contact with the pressing step surface after the thread is engaged with a part, or it can be matched with the pressing step surface at the beginning, but only after the plug and the socket are completely inserted, the inner connecting The distance between the rear end of the nut and the circlip of the hole is larger, and the compression amount of the corresponding elastic urging member is also larger.

An embodiment of a plug having a threaded structure connected to a positional feel, in Figures 5-11, in conjunction with Figures 12, 13, and 14, the plug is inserted through the front end with an adapted socket. The socket includes a socket housing 40, a socket housing A socket contact is fixed to the inner hole of the body 40 before and after the through hole, and the front end of the outer peripheral surface of the socket housing 40 has an external thread. The plug includes a plug housing 15, the front portion of the plug housing 15 is rotatably fitted with an inner connecting nut 21, and the front portion of the inner bore of the inner connecting nut 21 has an internal thread that is fitted with an external thread of the front end of the socket housing 40. A threaded anti-slipping structure is disposed between the inner connecting nut 21 and the plug housing 15, and the thread securing structure includes a fixed ring gear 16 fixedly disposed on the outer peripheral surface of the plug housing 15, and the inner peripheral surface of the fixed ring gear 16 is disposed. The claw 36 is inwardly suspended, and the claw 36 is engaged in the annular groove 24 provided on the outer circumferential surface of the plug housing 15 to realize the axial fixing of the fixed ring gear 16 on the plug housing 15, and the ring gear 16 is fixed. The inner peripheral surface is further provided with a rotation stop key groove 37 that cooperates with the rotation stop key 25 provided on the outer circumferential surface of the plug housing 15, and the front end surface of the fixed ring gear 16 and the inner hole wall of the inner connecting nut 21 are provided. The rear side of the inwardly projecting positioning ring 34 is press-fitted to achieve a rear end limit of the inner connecting nut 21 on the plug housing 15, and the front side of the positioning ring 34 and the outer peripheral surface of the plug housing 15 are convex. The top ring of the collar 26 is press-fitted, and the inner connecting nut 21 is disposed on the plug housing 15 by axially limiting the positioning ring between the retaining ring and the collar on the plug housing 15 and the fixed ring gear 16 . The rear side of the inner hole of the inner connecting nut 21 is slidably provided with a movable ring gear 18, and the outer peripheral surface of the movable ring gear 18 is provided with a sliding engagement with a guide key groove 33 provided on the inner wall of the inner connecting nut 21. The guide key 38, the front end face of the movable ring gear 18 and the rear side of the positioning ring 34 of the inner connecting nut 21 are elastically press-fitted by the corrugated spring 19. The rear end surface of the movable ring gear 18 is provided with triangular end teeth, and the rear end of the fixed ring gear 16 is provided with an everted turning edge 35, and the front end surface of the turning edge 35 is provided with the end teeth on the movable ring gear. The end teeth, when the inner connecting nut 21 is rotated, the inner connecting nut drives the movable ring gear to rotate. Since the end teeth of the movable ring gear and the fixed ring gear are triangular, the end teeth of the fixed ring gear push the movable ring gear. The movable ring gear compression corrugated spring 19 moves forward, and the end teeth of the movable ring gear are misaligned with the end teeth of the fixed ring gear, so that the inner connecting nut can be rotated, and the anti-loose structure enables the inner connecting nut to rotate under a certain torque. The threaded connection between the inner connecting nut and the socket can be prevented from coming loose in a vibrating environment.

The outer connecting nut 21 is axially slidably sleeved with an outer connecting cap 20, and the outer connecting cap 20 is disposed on the inner connecting nut 21, and the outer peripheral surface of the inner connecting nut 21 is provided with a front limit toward the front end. The step surface, the inner peripheral surface of the outer connecting cap 20 is provided with a rear limiting step surface facing the rear end, and the front limiting step surface and the rear limiting step surface are limitedly engaged to prevent the outer connecting cap 20 from being connected by the inner connecting nut 21 The rear end is removed; the outer connecting cap 20 A hole retaining spring 17 is attached to the rear end of the inner hole, and the hole retaining cap 17 is restrained from being engaged with the rear end surface of the inner connecting nut 21 to prevent the outer connecting cap 20 from being removed from the front end of the inner connecting nut 21. When the plug and the socket are inserted, the outer connecting cap 20 drives the inner connecting nut to advance to the socket through the cooperation between the retaining spring and the rear end surface of the inner connecting nut 21.

The front portion of the socket housing 40 is provided with a pressing step structure formed by a pressing step surface 39 toward the front end. The pressing step surface 39 is press-fitted with the front end portion of the outer connecting cap 20 during the insertion of the plug and the socket. . When the plug is inserted into the socket, the outer connecting cap 20 is held so that the plug is close to the socket and pushes the outer connecting cap 20 forward while screwing the outer connecting cap 20, and the outer connecting cap 20 passes the transmission key 28 and the mating key 31. The cooperation between the front portions drives the inner connecting nut 21 to rotate, and pushes the inner connecting nut forward through the rear retaining structure between the inner connecting nut 21 and the inner connecting nut 21 to screw the inner connecting nut 21 to the socket. On the housing, the plug and the socket enter the mating state under the pushing of the inner connecting nut, and the front end of the outer connecting cap is pressed against the pressing step surface 39 of the socket housing 40 as the insertion movement is deepened. The connecting cap is no longer moved forward and only rotates. When the outer connecting cap is pressed against the pressing step surface, the inner connecting nut will move forward relative to the outer connecting cap and continue to be screwed tightly with the socket housing. When the relative movement distance between the nut and the outer connecting cap reaches a certain amount, the transmission key is separated from the front part of the mating key, and the transmission key enters the receiving ring groove, and the inner connecting nut does not continue even if the outer connecting cap continues to rotate. Turned, When the plug and the socket is inserted into place.

As a modification of the above embodiment, the rear end of the transmission key 28 has an extending extension, and the extension of the transmission key 28 and the transmission key 28 is divided into two parts by the avoidance ring groove 29, and the escape ring groove 29 can accommodate the lower engagement key 31. The latter part. At the beginning of the insertion movement of the plug and socket, the extension of the transmission key will engage with the rear portion of the mating key, and together with the transmission key, the inner connecting nut will rotate. When the plug and the socket are inserted into position, the transmission key is in the receiving ring groove, the rear part of the matching key is in the escape ring groove, and the rear part of the transmission key is also separated from the rear part of the matching key, and the outer connecting cap no longer drives the inner connection. The nut rotates. The fixing ring groove 30 of the hole circlip 17 is provided on the extension of the transmission key, so that the radial size of the hole circlip can be reduced, and On the extension of the fixed ring groove setting drive key, it is not necessary to thicken the thickness of the outer connecting cap to set the fixing ring groove, and the radial dimension of the entire plug is reduced.

The elastic pushing member in the above embodiment may also be a common spring.

As a modification of the above embodiment, the front end portion of the outer connecting cap 20 has an inturned end edge 23, and the end edge 23 is opposite to the inner connecting nut when the outer connecting cap compressing the corrugated spring is moved rearward relative to the inner connecting nut In conjunction with the prevention, the end edge 23 prevents the corrugated spring from being over-compressed and serves to protect the corrugated spring from failure due to excessive compression.

When there are a plurality of contacts of the plug and the socket, in order to protect the contacts of the plug and the socket, an anti-missing key 27 is provided at the front end portion of the outer peripheral surface of the plug housing 15, and five anti-missing keys 27 are disposed. On the outer peripheral surface of the plug housing, the mis-insertion preventing key 27 is engaged with the anti-missing key groove provided on the inner wall of the socket housing when the plug is inserted into the socket.

Claims

Claim

A connector assembly having a threaded structure connected to a sense of position, comprising a plug and a socket, the plug and the socket being inserted through respective front ends, the plug comprising a plug housing, the socket comprising a socket housing, characterized in that: the plug housing The front rotating sleeve of the body is provided with an inner connecting nut axially disposed on the plug housing, and the front end of the inner hole of the inner connecting nut has an internal thread screwed to the external thread provided at the front part of the socket housing, and the inner connecting The outer circumferential axial sliding sleeve of the nut is provided with an outer connecting cap which is disposed on the inner connecting nut, and the inner peripheral surface of the outer connecting cap is provided with an axially extending transmission key in the circumferential direction, and the outer circumference of the inner connecting nut The surface is provided with a mating key for engaging the transmission key in the process of screwing the socket nut to the socket housing in the circumferential direction, and the front portion of the outer circumference of the socket housing is provided with the inner connecting nut and the socket housing. The top end of the inner connecting nut and the outer connecting cap are pressed to ensure the inner connecting nut advances relative to the outer connecting cap, and the outer peripheral surface of the inner connecting nut has the matching key divided into the front and rear portions. Then receiving annular groove receiving the drive nut and the bond socket housing when screwed cap and pressed against the outer connector pressed against the stepped structure in place.

2. The connector assembly according to claim 1, wherein the outer connecting cap is disposed on the inner connecting nut through the front retaining structure and the rear retaining structure. The front retaining structure includes a front limiting step surface disposed toward the front end of the outer peripheral surface of the inner connecting nut and a rear limiting step surface disposed toward the rear end of the inner connecting surface of the outer connecting cap, the front limiting step surface and the rear The limiting step surface is elastically press-fitted by the elastic pushing member disposed between the two, and the rear retaining structure comprises a limiting end edge fitted at the rear end of the inner connecting hole of the outer connecting cap, and the limiting retaining edge is connected with the inner connecting nut End face press fit.

3. The connector assembly according to claim 2, wherein the front end portion of the outer connecting cap has a front end surface engagement with the inner connecting nut to prevent elastic pushing. Over-compressed end edges.

4. The connector assembly according to claim 2, wherein the transmission key is more than one and is circumferentially distributed on the inner peripheral surface of the outer connecting cap, and is driven. The rear end of the key is extended with an extension extending to the rear end surface of the outer connecting cap, the outer connecting cap The inner peripheral surface is provided with a relief ring groove for dividing the extension of the transmission key and the transmission key and accommodating the rear portion of the engagement key when the transmission key is located in the accommodation ring groove, and the limit stop edge is a hole card The spring is fixed in the fixing ring groove provided on the extension of each transmission key by a circlip.

The connector assembly with a threaded structure connected to a sense of hand according to any one of claims 1 to 4, wherein: the inner connecting nut and the plug housing are provided with a thread anti-loose structure.

6. A plug having a threaded structure connected to a hand, the front end of the plug for mating with an adapted socket, the plug comprising a plug housing, characterized in that: the front rotating sleeve of the plug housing is provided with an axial limit An inner connecting nut disposed on the plug housing, the front end of the inner hole of the inner connecting nut has an internal thread for screwing the external thread provided at the front portion of the socket housing, and the outer peripheral axial sliding sleeve of the inner connecting nut The outer connecting cap is provided on the inner connecting nut of the inner connecting nut, and the inner peripheral surface of the outer connecting cap is provided with an axially extending transmission key in the circumferential direction, and the outer peripheral surface of the inner connecting nut is disposed in the circumferential direction The connecting nut is screwed into the socket housing and engages with the transmission key of the transmission key. The outer peripheral surface of the inner connecting nut has a connecting key which is divided into two parts before and after the inner connecting nut is opposite to the outer connecting cap. After the shifting and socket housing is screwed into place, the receiving ring groove of the transmission key is accommodated.

7. The plug according to claim 6, wherein the outer connecting cap is disposed on the inner connecting nut through the front retaining structure and the rear retaining structure. The detachment prevention structure includes a front limit step surface disposed toward the front end of the outer peripheral surface of the inner connecting nut and a rear limit step surface disposed at the inner circumferential surface of the outer connecting cap, the front limit step surface and the rear limit position The step surface is elastically press-fitted by the elastic pushing member disposed between the two, and the rear anti-drop structure comprises a limiting end edge assembled at the rear end of the inner connecting hole of the outer connecting cap, and the limiting end edge and the rear end surface of the inner connecting nut are topped Press fit.

8. The plug according to claim 7, wherein the front end portion of the outer connecting cap has a limit engagement with a front end surface of the inner connecting nut to prevent the elastic pushing member from being excessively Compressed end edge.

9. The plug having a threaded structure connected to a positional feel according to claim 7, wherein: said transmission key is one or more and is circumferentially distributed on the inner peripheral surface of the outer connecting cap. The rear end of the transmission key is extended with an extension extending to the rear end surface of the outer connecting cap, and the inner peripheral surface of the outer connecting cap is provided with a separating drive key from the extension of the transmission key and the transmission key is located in the receiving ring groove The retaining ring groove for accommodating the rear portion of the engaging key, the limiting retaining edge is a circlip for the hole, and the hole is fixedly disposed in the fixing ring groove provided on the extension of each of the transmission keys by a circlip.

The plug having a threaded structure connected to the sense of hand according to any one of claims 6-9, wherein: the inner connecting nut and the plug housing are provided with a threaded anti-loos structure .