Plug-pull self-detection connector

Abstract

The invention relates to the technical field of connecting devices with built-in switches, in particular to a plugging self-detection connector. The plugging self-detection connector is improved on the basis of an existing connector, and when the purpose of plugging self-detection needs to be achieved, the travel switch assembly is integrated on the shell of the connector, and the driving part of the travel switch assembly is arranged on the radial outer side of the locking sleeve; the driving part is provided with a driven end which extends to the front side of the shell and the radial outer side of the locking sleeve, when the adaptive connector is inserted, the driven end is pushed back, the trigger end retreats along with the driven end and changes the on-off state of the travel switch, and when the adaptive connector is pulled out, the reset spring pushes the driving part to return forwards and changes the on-off state of the travel switch again, so that the locking sleeve is locked. Therefore, the plugging self-detection of the connector can be realized, and the realization mode is completely different from the structure form of the existing connector for realizing the plugging self-detection, the electrical interface of the connector is not changed, and the size requirement of the electrical interface can be met.

Description

Technical Field

[0001] The invention relates to the technical field of connection devices with built-in switches, in particular to a plug-in self-detecting connector. Background Art

[0002] At present, many occasions require connectors that can self-detect the plug-in and unplug status. These connectors often have a travel switch integrated inside the socket. When the plug is inserted into the matching socket, the contact of the travel switch is triggered, so that the signal of the socket and the plug being plugged in can be obtained. After the plug is pulled out of the socket, the contact of the travel switch is de-triggered, so that the signal of the socket and the plug being separated can be obtained. For example, a socket and an industrial connector disclosed in the Chinese utility model patent with the authorization announcement number CN214280355U, in which a guide rod is movably installed in the plug-in direction in the internal body of the socket (i.e., an insulator installed inside the shell and a plug-in component installed in the insulator), a travel switch is arranged on the rear side of the internal body in the socket shell, the front end of the guide rod is a free end, and the rear end cooperates with the contact of the travel switch. When the plug is inserted into the socket, the guide rod is pushed back by the plug and triggers the travel switch, thereby obtaining the plug-in status information of the socket.

[0003] At present, the connector between the aircraft and the suspended object is also required to be able to self-detect the plug-in and unplug status. However, the connector between the aircraft and the suspended object often includes an outer shell and an internal body installed in the inner cavity of the outer shell. The internal body includes an insulator and an electrical connector installed in the insulator. The front end of the internal body is protruding to form a columnar plug section. The front end of the outer shell of the adapter plug has a cylindrical plug-in cavity, and the internal body of the plug is in the plug-in cavity. When the plug and the socket are plugged in, the cylindrical plug-in cavity is inserted into the socket plug-in section, and the internal body of the plug and the socket are plugged in and electrically conductive. The socket housing has a locking sleeve extending forward and backward to cooperate with the locking nut thread on the adapter plug. The plug and the socket are kept in a locked state by locking the locking nut and the locking sleeve.

[0004] In order to make the connector universal for different hanging objects, the electrical interface of the socket needs to comply with the GJB1188 standard. In this way, when implementing the plug-in self-detection of the socket, if the guide rod that cooperates with the travel switch is integrated into the internal body of the socket in the manner disclosed in the above-mentioned prior art, the size of the internal body will increase, which cannot meet the design standards and user needs. Therefore, how to realize the plug-in self-detection function without affecting the size standard of the internal body of the socket is an urgent need at present. Summary of the invention

[0005] The object of the present invention is to provide a plug-in self-detecting connector to solve the problem that in order to realize plug-in self-detection, a structural component for realizing plug-in self-detection is added to the internal body of a type of connector whose electrical interface such as a connector between an existing aircraft and a hanging object needs to meet certain size requirements, which will cause the internal body size to exceed the standard.

[0006] The plug-in self-detecting connector of the present invention comprises an outer shell and an internal body, and the connector also comprises a travel switch assembly installed in the outer shell, and the travel switch assembly comprises a travel switch and a driving component, wherein the driving component is located radially outside the locking sleeve, and has a driven end extending to the front side of the outer shell and radially outside the locking sleeve, and a trigger end located at the rear side of the driven end for cooperating with the travel switch, the driving component is provided with a reset spring providing elastic force toward the front side, and the outer shell is provided with an anti-detachment stop structure for stopping the driving component, the driven end of the driving component is used to be pushed back when the adapter connector is inserted, and the trigger end retreats with the driven end and changes the on-off state of the travel switch, and when the adapter connector is pulled out, the reset spring pushes the driving component forward to the limit position and changes the on-off state of the travel switch again.

[0007] Furthermore, the driving component includes a driven ring body and a mounting rod connected to the rear side of the driven ring body, the driven ring body is arranged around the internal main body and its front end constitutes the driven end, the outer shell is provided with a mounting rod through hole for the mounting rod to pass through from front to rear, the outer shell is provided with a mounting rod stopping structure for stopping the mounting rod, the mounting rod stopping structure constitutes the anti-detachment stopping structure, and the rear end of at least part of the mounting rod is provided with the trigger end.

[0008] Furthermore, the return spring is a compression spring acting between the rear end of the mounting rod and the housing.

[0009] Furthermore, the through hole of the mounting rod is a stepped hole that is smaller in the front and larger in the rear, and the mounting rod has an outer flange at the rear. The mounting rod stopping structure is the step surface of the stepped hole and is used to cooperate with the outer flange.

[0010] Furthermore, the driven ring body includes a connecting ring body and a rotating ring body. The rotating ring body is arranged on the front side of the connecting ring body and rotates around its own axis. The connecting ring body is connected to the mounting rod, and the front end surface of the rotating ring body constitutes the driven end.

[0011] Furthermore, the driven ring body includes a thrust bearing, of which the two thrust washers on the front side constitute the rotating ring body, and the two thrust washers on the rear side constitute the connecting ring body, and the driven ring body also includes a retaining member for maintaining a certain front-to-rear distance between the two thrust washers.

[0012] Furthermore, the connecting ring body is provided with a radially penetrating screw hole and a connecting hole extending backward from the screw hole to the rear end surface of the connecting ring body. The front end of the mounting rod extends into the screw hole from the connecting hole, and a locking nut is connected to the end extending into the screw hole.

[0013] Furthermore, the outer shell includes a main shell component and a tail shell component connected to the rear side of the main shell component, the main shell component includes an annular main shell surrounded by the outside of the internal body, the locking sleeve is connected to the main shell, the tail shell component is connected to the rear side of the main shell to cover the internal body inside, and the mounting rod and the travel switch are both installed on the main shell.

[0014] Furthermore, the travel switch includes a switch body and a short-circuit component, the switch body is fixed on the main housing, the short-circuit component is connected to the trigger end or movably installed on the switch body, the switch body has a pair of wiring members, and the short-circuit component is used to contact the wiring members or disengage from the wiring members when driven by the trigger end to achieve switching of the on-off state of the paired wiring members, and the switch body and the mounting rod are spaced apart in the front-to-back direction.

[0015] Furthermore, a housing cavity for accommodating the travel switch is provided on the annular main housing, and the travel switch is located in the housing cavity.

[0016] Furthermore, the accommodating chamber is radially connected to the inner space of the annular main shell.

[0017] Furthermore, the switch body is a plate-shaped body, and a guide structure is provided on the plate-shaped body at a position corresponding to the front and rear of the mounting rod. The paired wiring members are arranged on the side of the guide structure on the plate-shaped body. The trigger end includes a short-circuit mounting plate fixed to the rear end of the mounting rod, and the short-circuit is fixed on the short-circuit mounting plate. The short-circuit is a U-shaped pin with an opening facing backward. The two ends of the U-shaped pin respectively correspond to the front and rear of the two paired wiring members. When the mounting rod moves backward to the extreme position, the U-shaped pin short-circuits the paired wiring members. When the mounting rod moves forward to the extreme position, the U-shaped pin is disengaged from the paired wiring members.

[0018] Furthermore, the paired wiring members are arranged on the radial inner side of the guide structure on the plate-like body, and the two parallel sides of the U-shaped pins are spaced side by side in the circumferential direction.

[0019] Furthermore, a blind hole is provided at the rear end of the mounting rod, the guide structure is a guide column matched with the blind hole, and a corresponding return spring is sleeved on the guide column.

[0020] Furthermore, the switch body is a columnar body, the rear end of the mounting rod extends into the columnar body and constitutes a trigger end, the rear end of the corresponding reset spring rests on the columnar body, and the columnar body has a floating inner cavity just behind the mounting rod. The short-circuit is movably installed in the floating inner cavity in the front-to-back direction, and the short-circuit moves with the trigger end in at least part of the moving stroke of the trigger end. The paired wiring members are arranged in the cavity wall of the floating inner cavity and have a portion leaking into the floating inner cavity.

[0021] Furthermore, the paired wiring members are exposed at the front wall of the floating inner cavity. A retaining spring is installed in the floating inner cavity to provide elastic force for the short-circuit member to move forward. When the trigger end moves backward to drive the short-circuit member to move, the short-circuit member is separated from the paired wiring members.

[0022] Furthermore, after the trigger end moves backward a certain distance, the short-circuit member is driven to move and separate from the paired wiring members.

[0023] Furthermore, an insulating transmission rod is installed in the cavity wall of the floating inner cavity in a guided and movable manner in the front-to-back direction. The insulating transmission rod is fixedly connected to the short-circuit piece. The installation rod is located in front of the insulating transmission rod and drives the short-circuit piece to move by pushing the insulating transmission rod.

[0024] Furthermore, the short-circuit is a stepped shaft structure, and a connecting hole is provided on the end face of the large diameter section. One end of the insulating transmission rod extends into the connecting hole and is connected to the short-circuit. The retaining spring is sleeved outside the small diameter section and pressed against the step surface. The paired wiring members are respectively located on opposite sides of the insulating transmission rod, and the end face of the large diameter section is in contact with the paired wiring members.

[0025] Furthermore, the wiring member includes an elastic contact member extending forward and backward, and a rear end of the elastic contact member is exposed from the front cavity wall of the floating inner cavity.

[0026] Furthermore, the wiring member is a U-shaped folded structure. Among the two parallel sections of the U-shaped folded structure, the end of the first parallel section passes through the radial outer side of the floating inner cavity and is exposed from the rear end of the columnar body for wiring, and the end of the second parallel section is exposed from the front wall of the floating inner cavity.

[0027] Furthermore, the travel switch includes a switch body and a short-circuit member, the switch body is fixed on the main housing component, the short-circuit member is connected to the trigger end or movably installed on the switch body, the switch body has a pair of wiring members, and the short-circuit member is used to contact the wiring members or disengage from the wiring members when driven by the trigger end to achieve switching of the on-off state of the paired wiring members, and the switch body and the mounting rod are spaced apart in the radial direction or circumferential direction.

[0028] Furthermore, the switch body is a block-shaped body, the rear end of the mounting rod extends to the side of the block-shaped body and constitutes a trigger end, the paired wiring members extend from the side of the block-shaped body corresponding to the mounting rod, the short-circuit member is installed on the trigger end and has a contact surface facing the paired wiring members, when the mounting rod moves backward to the extreme position, the contact surface short-circuits the paired wiring members, and when the mounting rod moves forward to the extreme position, the contact surface disengages from the paired wiring members.

[0029] Furthermore, the switch body is located radially inward of the mounting rod.

[0030] Furthermore, the rear end of the mounting rod is a half-round rod structure with a D-shaped cross section, the block body is located on the side corresponding to the plane of the half-round rod, the paired wiring members are exposed toward the plane of the half-round rod, and the contact surface of the short-circuit member is on the plane of the half-round rod.

[0031] Furthermore, the short-circuit piece is a collar structure with a D-shaped cross section, and the short-circuit piece is sleeved on the semicircular rod.

[0032] Furthermore, the switch body is an arc-shaped strip extending in the circumferential direction and is located on the radial inner side of the mounting rod. The paired wiring members are fixed in the switch body at intervals in the circumferential direction. The trigger end includes a short-circuit mounting plate fixed to the rear end of the mounting rod. The short-circuit is fixed on the short-circuit mounting plate. The short-circuit is a U-shaped contact with an opening facing forward. The two ends of the U-shaped contact correspond to the two paired wiring members front and back respectively. When the mounting rod moves forward to the extreme position, the U-shaped contact short-circuits the paired wiring members. When the mounting rod moves backward to the extreme position, the U-shaped contact disengages from the paired wiring members.

[0033] Furthermore, the wiring member is a U-shaped folded structure. Among the two parallel sections of the U-shaped folded structure, the end of the first parallel section is exposed from the rear end of the arc-shaped strip body for wiring, and the second parallel section corresponds to one end of the U-shaped contact member front and back. The two parallel sections are spaced apart in the circumferential direction of the arc-shaped strip body.

[0034] Furthermore, the U-shaped contact piece is a U-shaped pin, and the parallel section of the terminal piece corresponding to one end of the U-shaped pin is a socket structure for inserting one end of the U-shaped pin.

[0035] Furthermore, the tail shell component includes a tail shell ring body portion for connecting to the rear end of the main shell body, and a rear extension wall extending backward from the tail shell ring body portion, the rear end of the rear extension wall is connected to a tail sealing plate, the travel switch is located on the front side of the tail sealing plate, and the rear extension wall is provided with a radially through tail wire outlet channel for radially passing through the cables connected to the rear end of the internal main body.

[0036] Furthermore, the annular surface of the tail shell ring body part extends radially and is closely connected with the rear end surface of the main shell body. The tail shell ring body part has an avoidance gap at a position corresponding to the accommodating cavity. The extended surrounding wall includes an avoidance wrapping part that wraps around the avoidance gap from the outside, and an inner arc wrapping part extending along the inner circumferential surface of the tail shell ring body part. The avoidance wrapping part includes an outer arc wrapping part extending along the outer circumferential surface of the tail shell ring body part and a radial wrapping part connecting the outer arc wrapping part and the inner arc wrapping part. The tail outlet channel is arranged on the inner arc wrapping part.

[0037] Furthermore, a restraining frame for restraining the wire harness is installed on the rear end surface of the tail shell ring body portion at a radially outer position corresponding to the tail outlet channel.

[0038] Furthermore, the tail shell component includes a tail plugging plate extending perpendicular to the axis of the main shell, the tail plugging plate is fitted and connected to the rear end surface of the main shell, and the rear end of the main shell is provided with a radially through tail wire outlet channel for radially passing the cables connected to the rear end of the internal body.

[0039] Furthermore, the tail plugging plate is provided with an extension section extending radially outward at a position corresponding to the tail wire outlet channel, and a restraining channel for restraining the wire harness is provided at the front side of the outer end of the extension section.

[0040] Furthermore, there are two travel switches.

[0041] The plug-in self-detecting connector of the present invention is improved on the basis of the existing connector. When the purpose of plug-in self-detection needs to be achieved, a travel switch assembly is integrated on the outer shell of the connector, and the driving component of the travel switch assembly is arranged on the radial outside of the locking sleeve. The driving component has a driven end extending to the front side of the outer shell and the radial outside of the locking sleeve. When the adapter connector is inserted, the driven end is pushed back, and the trigger end retreats with the driven end and changes the on-off state of the travel switch. When the adapter connector is unplugged, the reset spring pushes the driving component back to its position and changes the on-off state of the travel switch again, thereby realizing the plug-in self-detection of the connector. Moreover, this implementation method is completely different from the existing connector structure for realizing plug-in self-detection, does not change the electrical interface of the connector, increases the size of the electrical interface, and can meet the electrical interface size requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a plug-in self-detecting connector according to a first embodiment of the present invention from a first viewing angle; Figure 2 It is a structural schematic diagram of a plug-in self-detecting connector according to a first embodiment of the present invention from a second viewing angle; Figure 3 It is a structural schematic diagram of a third viewing angle of a first embodiment of a plug-in self-detecting connector of the present invention; Figure 4This is a schematic diagram of the structure of the plug-in self-detecting connector after removing the internal body; Figure 5 for Figure 4 The structure shown is a schematic diagram of the structure after removing the tail shell component; Figure 6 for Figure 5 The schematic diagram of the structure shown is a schematic diagram of the structure after the connecting flange is removed; Figure 7 for Figure 6 The structure shown is a schematic diagram of the structure after removing the travel switch assembly; Figure 8 for Figure 7 a rear view of the structure; Fig. 9 for Figure 4 The structure shown is a schematic diagram of the structure after the main shell components are removed; Fig.10 for Fig. 9 The schematic diagram of the structure shown is a schematic diagram of the structure after the connecting flange is removed; Fig.11 for Figure 4 The structural diagram of the mid-travel switch assembly; Fig.12 for Fig.11 A structural schematic diagram of the travel switch assembly from another perspective; Fig.13 It is a cross-sectional view of the driving component; Fig.14 for Fig.11 The structural schematic diagram showing the assembly relationship between the mounting rod and the travel switch in the travel switch assembly shown; Fig.15 for Fig.14 A schematic diagram of the structure from another perspective of the structure shown; Fig.16 for Fig.15 Schematic diagram of the internal structure of the switch body; Fig.17 It is a structural schematic diagram of a travel switch assembly in another embodiment; Fig.18 for Fig.17 A schematic diagram of the structure from another perspective of the structure shown; Fig.19 for Fig.17 A cross-sectional view of the matching portion of the travel switch and the mounting rod shown; Fig. 20 It is a structural schematic diagram of a travel switch assembly in another embodiment; Fig.21 for Fig. 20 Schematic diagram of the structure of the mid-travel switch; Fig. 22 It is a structural schematic diagram of the tail shell component; Fig.23 for Fig. 22 A schematic diagram of the structure from another perspective of the structure shown; Fig.24 for Fig.23 Schematic diagram of the structure of removing the constraint framework; Fig.25 It is a structural schematic diagram of a plug-in self-detecting connector from a first viewing angle in a second embodiment; Fig.26 It is a structural schematic diagram of a second perspective of a plug-in self-detecting connector according to a second embodiment; Fig. 27 for Fig.25 The schematic diagram of the structure after removing the internal body of the structure shown; Fig.28 for Fig. 27 The structure shown is a schematic diagram of the structure after removing the tail shell component; Fig.29 for Fig.28 The structure shown is a schematic diagram of the structure after removing the travel switch assembly; Fig.30 for Fig. 27 The structural diagram of the mid-travel switch assembly; Fig.31 for Fig.30 The schematic diagram of the structure of the switch body; Fig.32 for Fig.31 The structural diagram of the middle connecting piece; Fig.33 for Fig.30 A schematic diagram of the structure of the middle mounting rod and the trigger end; Fig.34 for Fig. 27 Schematic diagram of the structure of the tail shell components.

[0043] In the figure: 1, internal body; 20, main housing; 21, locking sleeve; 22, connecting flange; 200, mounting rod through hole; 24, accommodating chamber; 3, driving component; 30, driven ring body; 31, mounting rod; 32, return spring; 301, connecting ring body; 302, rotating ring body; 303, retaining member; 310, outer flange; 311, trigger end; 34, guide column; 4, travel switch; 40, switch body; 41, wiring member; 43, short-circuit member; 44, gap; 401, rear shell Body; 402, front shell; 403, front end plate; 410, first parallel section; 411, second parallel section; 430, retaining spring; 431, insulating transmission rod; 80, tail plugging plate; 81, U-shaped wire clamp; 801, connecting flange; 802, extension section; 90, tail shell component; 91, restraint frame; 901, tail shell ring body part; 902, outer arc wrapping part; 903, radial wrapping part; 904, inner arc wrapping part; 905, tail sealing plate; 900, tail outlet channel. DETAILED DESCRIPTION

[0044] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0045] The plug-in self-detecting connector of the present invention is improved for the existing connectors that have requirements for the size specifications of the internal body, so that it can realize the plug-in self-detecting function. By arranging a travel switch assembly in its outer shell, that is, on the radial outside of the internal body, when the adapter connector is plugged in, the driven end of the travel switch assembly can be pushed by the adapter connector to make the trigger end switch the state of the travel switch, thereby obtaining a plug-in signal. When the adapter connector is unplugged, the trigger end is reset by the reset spring, and the travel switch switches the state again, thereby obtaining a pull-out signal. At the same time, the travel switch assembly does not occupy the internal space of the internal body, and there is no need to make structural changes to the internal body, thereby meeting the size requirements of the internal body.

[0046] Based on the above concept, the embodiment of the plug-in self-detecting connector of the present invention is as follows Figure 1-24 shown.

[0047] The plug-in self-detecting connector of this embodiment includes an outer shell and an internal body 1, wherein the structure of the internal body 1 is the same as the internal structure of the existing connector, and the outer shell is different from the prior art. The outer shell includes a main shell component and a tail shell component 90 connected to the rear side of the main shell component, and the main shell component includes an annular main shell 20 surrounded by the outside of the internal body 1, and the main shell 20 has a forward extending locking connection with the connecting nut threadedly matched with the adapter connector, or a locking connection with the locking connection sleeve of the adapter connector through a staple curved groove structure, or a locking sleeve 21 for locking connection with the locking connection sleeve of the adapter connector through a snap groove structure, and the tail shell component 90 is connected to the rear side of the main shell 20 to cover the internal body 1 inside, and the travel switch assembly is installed on the main shell 20 and is in the internal space surrounded by the main shell 20 and the tail shell component 90. In some embodiments, the limit switch 4 can be located on the rear side of the main housing 20 and the front side of the tail housing component 90, that is, in the space enclosed by the main housing 20 and the tail housing component 90. In other embodiments, a accommodating cavity 24 can be provided on the main housing 20, and at least part of the limit switch 4 is located in the accommodating cavity 24.

[0048] Specifically, the travel switch assembly includes a travel switch 4 and a driving component 3, the driving component 3 is located on the radial outside of the locking sleeve 21, and has a driven end extending to the front side of the shell and the radial outside of the locking sleeve 21, and a trigger end 311 located on the rear side of the driven end for cooperating with the travel switch 4, the driving component 3 is provided with a reset spring 32 that provides it with an elastic force toward the front side, and the shell has an anti-detachment stop structure for stopping the driving component 3, which can stop it at the front limit position when the reset spring 32 provides an elastic force to push the driving component 3 forward, the driven end of the driving component 3 is used to be pushed back when the adapter connector is inserted, and the trigger end 311 retreats with the driven end and changes the on-off state of the travel switch 4, such as changing from a circuit-on state to a circuit-off state, or from a circuit-off state to a circuit-on state, and when the adapter connector is pulled out, the reset spring 32 pushes the driving component 3 forward to the front limit position and changes the on-off state of the travel switch 4 again.

[0049] The driving component 3 in one embodiment can be a linear rod-shaped structure, i.e., a driving rod, like the guide rod in a socket and an industrial connector disclosed in the Chinese utility model patent with authorization announcement number CN214280355U cited in the background technology. The driving rod is installed in the shell in a guiding manner in the front and rear directions. The front end of the guide rod extends to the front side of the shell and the side of the plug-in section, which is the driven end. The rear end of the guide rod extends into the shell. The rear end of the guide rod is provided with a trigger end 311, which corresponds to the contact of the travel switch 4 arranged in the shell. The guide rod is provided with an outer convex ring. A reset spring 32 is installed in the shell and is sleeved on the outside of the guide rod. The front end of the reset spring 32 presses against the outer convex ring, and the rear end presses against the shell.

[0050] The driving component 3 in another embodiment described herein is as follows: Figure 9-12 As shown, the driving component 3 includes a driven ring body 30 and a mounting rod 31 connected to the rear side of the driven ring body 30. As the name implies, the driven ring body 30 is an annular structure driven by the adapter connector. The driven ring body 30 is arranged around the internal main body 1 and its front end constitutes the driven end. That is to say, when the adapter connector is plugged in, the adapter connector can push the front end annular surface of the driven ring body 30 and push it to move backward. The housing is provided with a mounting rod through hole 200 for the mounting rod 31 to pass through from front to back. The entire driving component 3 is installed on the housing by means of the mounting rod 31. The housing is provided with a mounting rod stopping structure for stopping the mounting rod 31. The driving component 3 is prevented from falling off in the forward direction by the mounting rod stopping structure, that is, the mounting rod stopping structure constitutes the above-mentioned anti-falling stopping structure. Of course, with regard to the design of the anti-disengagement stopping structure for stopping the driving component 3 provided on the outer shell, in one embodiment, a radially outwardly protruding component can also be installed on the outer peripheral surface of the plug-in tube 21 of the outer shell, so as to stop the driven ring body 30. These components can be C-shaped retaining rings installed on the outer periphery of the plug-in tube 21, or retaining pins inserted on the wall of the plug-in tube 21. However, it should be noted that the protruding dimensions of these components in the radial direction cannot affect the pushing of the driven ring body 30 by the adapter connector.

[0051] Based on the driving component 3 of the above structure, the function of the driving component 3 can be simply realized by using the mounting rod 31 to trigger the travel switch 4. In this way, the number of travel switches 4 is not greater than the number of mounting rods 31, and the rear ends of at least some of the mounting rods 31 are provided with the trigger end 311. When the adapter connector is inserted, the entire front end annular surface of the driven ring body 30 is pushed, and the driving component 3 is uniformly stressed in the circumferential direction. The adapter connector will not be subjected to the reverse force of the local position in the circumferential direction when inserted, and it is easier to ensure the accurate plugging and unplugging direction. The backward movement of the driving component 3 will drive all the mounting rods 31 on the rear side to move backward synchronously, and the trigger end 311 at the rear end of the mounting rods 31 corresponding to the travel switch 4 will change the on-off state of the corresponding travel switch 4, thereby obtaining the corresponding signal. Theoretically, setting one travel switch 4 can meet the plug-in self-detection. In order to ensure the accuracy of the detection result, such as Figure 9-12 In the embodiment shown, two travel switches 4 are provided, so that the accuracy can be improved by mutual verification of the two travel switches 4, and when one travel switch 4 fails, the other can also ensure the plug-in self-detection function. Of course, it can be understood that in some other embodiments, the number of travel switches 4 can be more.

[0052] When the limit switch 4 is set to two, such as Figure 9-12In the illustrated embodiment, the two travel switches 4 are disposed opposite to each other in the circumferential direction of the driven ring body 30 . Of course, depending on the structural design of the housing, in some embodiments, the two travel switches 4 may also be disposed close to each other in the circumferential direction.

[0053] The function of the return spring 32 is mainly to keep the driving component 3 at the front limit position in the natural state. After the adapter connector is pulled out, the return spring 32 pushes the driving component 3 back to the front limit position. In some embodiments, the return spring 32 can be arranged between the housing and the driven ring body 30 to directly provide the driven ring body 30 with a forward elastic force. Figure 9-12 In the illustrated embodiment, the number of the return springs 32 is equal to the number of the mounting rods 31, one end of the return spring 32 abuts against the mounting rod 31, and the other end directly abuts against the housing, or the other end abuts against other components fixedly connected to the housing to maintain relative fixation with the housing. In this way, the return spring 32 can be placed inside the housing, and a better protective effect can be obtained. Of course, in some embodiments, the number of the return springs 32 can also be less than the mounting rods 31, such as four or three, and the return springs can be dispersedly arranged circumferentially and can provide a stable forward elastic force to the driving component, and the adjustment of the number and position can be routinely adjusted by those skilled in the art according to needs.

[0054] like Figure 5-13 As shown, the housing achieves an embodiment of stopping and preventing the driving component 3 from falling off at the front side by stopping the mounting rod 31. Specifically, the mounting rod through hole 200 is a stepped hole that is smaller in the front and larger in the back, and the mounting rod 31 has an outer flange 310 at the rear. The mounting rod stopping structure is the step surface of the stepped hole and is used to stop and cooperate with the outer flange 310. Such an anti-falling stopping structure is arranged on the rear side of the driven ring body 30, so that the front end face of the driven ring body 30 can be completely exposed to the front side, and can be pushed back more reliably when the adapter connector is inserted.

[0055] When the adapter connector is locked and connected with the connector of the present invention, the locking nut of the adapter connector gradually pushes the driven ring body 30 during the process of being screwed onto the locking sleeve 21. At this time, since the locking nut is performing a rotational forward motion, in order to reduce the friction resistance of the locking nut during the rotation process and prevent the driven ring body 30 from being worn, Figure 9-12As shown, in one embodiment of the present invention, the driven ring body 30 includes a connecting ring body 301 and a rotating ring body 302. The rotating ring body 302 is arranged on the front side of the connecting ring body 301 and rotates around its own axis. The connecting ring body 301 is connected to the mounting rod 31, and the front end surface of the rotating ring body 302 constitutes the driven end. In this way, when the locking nut presses against the rotating ring body 302 and pushes it to move backward, the rotating ring body 302 itself can rotate, which reduces the friction between the locking nut and the driven ring body 30 to a certain extent.

[0056] There is no limitation on the relative rotational assembly method between the swivel ring body 302 and the connecting ring body 301. For example, the connecting ring body 301 is a circular ring with a square cross section, and the swivel ring body 302 is a ring structure formed by bending a thin wall, and the cross section is a C-shaped opening facing backwards. The C-shaped opening avoids the connection between the mounting rod 31 and the connecting ring body 301. The swivel ring body 302 is wrapped outside the connecting ring body 301 and can freely rotate relative to the swivel ring body 302. Fig.13 In one embodiment shown, the driven ring body 30 includes a thrust bearing, and the two thrust washers of the thrust bearing, the one on the front side, constitutes the rotating ring body 302, and the one on the rear side constitutes the connecting ring body 301. The existing mature thrust bearing is used to form the rotating ring body 302 and the connecting ring body 301, which is convenient to obtain materials and simple to manufacture. Of course, in the use environment of the connector of the present invention, when there is no adapter connector plugged in, the thrust bearing is located outside the locking sleeve 21 as a whole. In order to prevent the two thrust washers from freely spreading, the driven ring body 30 in this embodiment also includes a retaining member 303 that maintains a certain front-to-back distance between the two thrust washers. It can be seen from the figure that the retaining member 303 used in this embodiment is a retaining sleeve, the rear end of the retaining sleeve is forcibly connected to the outer peripheral surface of the connecting ring body 301, and the front end forms an inverted edge inwardly and blocks the rotating ring body 302. It can also be seen from the figure that a ring groove is provided on the outer edge of the front end face of the rotating ring body 302, the inverted edge is located in the ring groove and the front side surface is not higher than the front end face of the rotating ring body 302 to avoid interference with the locking nut of the adapter connector.

[0057] There are many ways to connect the connecting ring body 301 and the mounting rod 31, such as welding, or setting a threaded hole on the rear end surface of the connecting ring body 301, setting a threaded section on the front end of the mounting rod 31, and connecting the mounting rod 31 to the connecting ring body 301 through threads. Fig.13In the embodiment shown, the connecting ring body 301 is provided with a radially penetrating screw hole, and a connecting hole extending backward from the screw hole to the rear end face of the connecting ring body 301 is provided, and the front end of the mounting rod 31 has a small diameter section, which extends from the connecting hole into the screw hole, and a locking nut is connected to the end extending into the screw hole. The stop between the annular end face at the rear end of the small diameter section of the mounting rod 31 and the rear end face of the connecting ring body 301 can achieve positioning in the front-to-back direction, thereby ensuring the position accuracy of each mounting rod 31 when it is installed on the connecting ring body 301.

[0058] The travel switch 4 in the embodiment of the connector of the present invention is a direct-acting travel switch 4. The travel switch 4 includes a switch body 40 and a short-circuit 43. The switch body 40 is fixed on the main housing 20. The switch body 40 and the mounting rod 31 are spaced apart in the front-to-back direction. The short-circuit 43 is connected to the trigger end 311 or movably mounted on the switch body 40. The switch body 40 also has a pair of wiring members 41. When the short-circuit 43 is connected to the trigger end 311, the trigger end 311 moves backward when the driven end is pushed, and the short-circuit 43 moves backward synchronously. When the short-circuit 43 moves backward from the front extreme position to the rear extreme position, it switches from the state of simultaneous contact with the paired wiring members 41 to the state of separation from the paired wiring members 41, or switches from the state of separation from the paired wiring members 41 to the state of simultaneous contact with the paired wiring members 41, so as to realize the switching of the on-off state of the paired wiring members 41. When the short-circuit component 43 is movably installed on the switch body 40, the trigger end 311 at the rear end of the mounting rod 31 can push the short-circuit component 43 to move during the backward movement, so that when the short-circuit component 43 moves from the front extreme position to the rear extreme position, the relative position between the short-circuit component 43 and the paired wiring components 41 is changed, thereby realizing the switching of the on and off states of the paired wiring components 41.

[0059] In the embodiments of the multiple connectors in this document, travel switches 4 of different structural forms are respectively provided.

[0060] like Figure 11-16In the illustrated embodiment, the switch body 40 of the travel switch 4 is a plate-shaped body, which is fixedly connected to the rear end surface of the main housing 20 by connecting screws. A guide structure is provided on the plate-shaped body at a position corresponding to the front and rear of the mounting rod 31. A guiding matching relationship is established between the guide structure and the mounting rod 31 to ensure that when the mounting rod 31 moves forward and backward, the trigger end 311 can move relative to the paired wiring members 41 along an accurate path to achieve disengagement and contact. The paired wiring members 41 are arranged on the side of the guide structure on the plate-like body, and the trigger end 311 includes a short-circuit mounting plate fixed on the rear end surface of the outer flange 310 at the rear end of the mounting rod 31. The short-circuit mounting plate is an L-shaped plate, one side of the L-shaped plate is fitted and fixed to the rear end surface of the outer flange 310 at the rear end of the mounting rod 31, and the other side of the L-shaped plate extends backward. The short-circuit 43 is fixed on the short-circuit mounting plate, and the short-circuit 43 is a U-shaped pin with an opening facing backward. The two ends of the U-shaped pin correspond to the two paired wiring members 41 front and back respectively. The two wiring members 41 have a socket structure. When the mounting rod 31 moves backward to the extreme position, the U-shaped pin is inserted into the socket structure of the two wiring members 41 to short-circuit the paired wiring members 41. When the mounting rod 31 moves forward to the extreme position, the U-shaped pin is separated from the paired wiring members 41. The wiring member 41 is L-shaped as a whole, and the socket structure constitutes one side of the L-shaped wiring member 41. The other side of the L-shaped wiring member 41 is connected to the rear end of the socket structure and extends radially inward. In this way, the wiring is radial and the axial length can be reduced.

[0061] In the above embodiment, the paired wiring members 41 are arranged on the radial inner side of the guide structure on the plate-like body, so that the internal space of the main shell 20 between the mounting rod 31 and the internal body 1 can be fully utilized, and at the same time, the paired wiring members 41 are closer to the internal body 1, which is convenient for the wiring on the internal body 1 and the wiring on the wiring members 41 to be bundled and led out. Of course, in other embodiments, the paired wiring members 41 can also be arranged on the circumferential side of the guide structure on the plate-like body, and the position of the paired wiring members 41 is changed accordingly, so that the radial size of the main shell 20 can be reduced.

[0062] In order to avoid interference with the normal relative movement between the short-circuit 43 and the paired wiring members 41 arranged beside the guide structure, the guide structure arranged on the switch body 40 is a guide column 34, and a blind hole is opened at the rear end of the mounting rod 31. The guide column 34 cooperates with the blind hole guide, and the return spring 32 corresponding to the mounting rod 31 is sleeved on the outside of the guide column 34, and one end is against the short-circuit mounting plate, and the other end is against the plate-like body.

[0063] The structural form of the travel switch 4 described above arranges the guide structure and the short-circuit member 43 in parallel in a direction perpendicular to the axis of the connector, thereby shortening the space occupied in the axial direction and reducing the axial length of the connector.

[0064] like Figure 17-19 In the embodiment shown, the switch body 40 is a columnar body, which extends forward and backward and corresponds to the front and back of the mounting rod 31. The rear end of the mounting rod 31 constitutes a trigger end 311 and extends into the columnar body. The rear end of the return spring 32 corresponding to the mounting rod 31 abuts against the columnar body, and the front end abuts against the outer flange 310 provided on the outer peripheral surface of the mounting rod 31 near the rear end. The columnar body has a floating inner cavity just behind the mounting rod 31. The short-circuit 43 is movably installed in the floating inner cavity in the front-to-back direction. In the movement stroke of the trigger end 311 moving backward, the short-circuit 43 moves with the trigger end 311. The paired wiring members 41 are arranged in the cavity wall of the floating inner cavity and have a part leaking in the floating inner cavity. In the process of the short-circuit 43 moving forward and backward, it can simultaneously contact the paired wiring members 41 and simultaneously detach from the paired wiring members 41.

[0065] The travel switch 4 of this structural form has a columnar body disposed on the rear side of the mounting rod 31, a short-circuit 43 disposed on the rear side of the mounting rod 31, and the short-circuit 43 is pushed by the rear end of the mounting rod 31, thereby reducing the space occupied by the travel switch 4 in the radial direction as a whole.

[0066] In one embodiment, the pair of wiring members 41 are relatively installed in the two side walls of the floating inner cavity and exposed from the two opposite inner walls of the floating inner cavity. When the short-circuit member 43 is at the extreme position on the front side, it contacts the pair of wiring members 41 through its two opposite side surfaces respectively. When the short-circuit member 43 is at the extreme position on the rear side, its two opposite side surfaces are axially offset from the pair of wiring members 41 and are respectively disengaged.

[0067] In such Fig.19 In the illustrated embodiment, the paired wiring members 41 are exposed at the front wall of the floating inner cavity. A retaining spring 430 is installed in the floating inner cavity to provide elastic force for the short-circuit member 43 to move forward. When the trigger end 311 moves backward to drive the short-circuit member 43 to operate, the short-circuit member 43 is separated from the paired wiring members 41. When the short-circuit member 43 is at the extreme position on the front side, the short-circuit member 43 contacts the paired wiring members 41 exposed at the front wall at the same time. Of course, another variant implementation method can be easily made, in which the paired wiring components 41 are exposed at the rear wall of the floating inner cavity, and a retaining spring 430 is installed in the floating inner cavity to provide elastic force for the short-circuit component 43 to move forward. The wiring components 41 are in a position avoiding the retaining spring 430. When the trigger end 311 moves backward and drives the short-circuit component 43 to move until it reaches the extreme position on the rear side, the short-circuit component 43 contacts the paired wiring components 41. When the short-circuit component 43 is at the extreme position on the front side, the short-circuit component 43 is separated from the paired wiring components 41 exposed at the rear wall.

[0068] When the paired wiring members 41 are exposed at the front wall of the floating inner cavity, the wiring members 41 may include rigid wiring members 41 extending forward and backward, and when the short-circuit member 43 is at the front extreme position, the front side surface of the short-circuit member 43 is in close contact with the rear end of the rigid wiring member 41; or in another embodiment, the wiring members 41 include elastic wiring members 41 extending forward and backward, such as wool buttons or spring pins, and one end of the wiring member 41 exposed from the floating inner cavity is in elastic contact and conduction with the short-circuit member 43, with a certain contact margin, so that the entire travel switch 4 has an elastic contact and conduction function, the product life is significantly improved, and the vibration resistance performance is more excellent.

[0069] Based on the two different structural forms in the previous paragraph, in one embodiment, the front end of the wiring member 41 exposes a columnar body, which forms a wiring terminal, but wiring from the front side will cause wiring difficulties. In another embodiment, as Fig.19 As shown, the connection piece 41 is a U-shaped folded structure. Of the two parallel sections of the U-shaped folded structure, the end of the second parallel section 411 is exposed from the front wall of the floating cavity, and the end of the first parallel section 410 passes through the radial outer side of the floating cavity and is exposed from the rear end of the columnar body for connection. The front ends of the two parallel sections are connected by a connecting section. Fig.19As shown, in order to facilitate the above-mentioned structural arrangement, the columnar body includes a front housing 402 and a rear housing 401. The front housing 402 is in the shape of a pancake and is provided with two groups of mounting holes, which are respectively used to mount the paired wiring members 41. The two groups of mounting holes respectively include two through holes extending forward and backward, and the two through holes are respectively used to mount two parallel sections of the wiring member 41 of the U-shaped folded structure. The rear housing 401 is in the shape of a cylinder with an opening facing forward. After the front housing 402 and the rear housing 401 are docked, a closed inner cavity is formed, which is a floating inner cavity. The short-circuit 43 is installed in the inner cavity, and the front end of the retaining spring 430 is pressed against the short-circuit 43, and the rear end is pressed against the rear housing 401. Of the two through holes provided on the front shell 402, one is connected to the floating inner cavity, wherein the installed parallel section is exposed from the front wall of the floating inner cavity, and the other through hole is corresponding to the cylinder wall of the rear shell 401. The cylinder wall of the rear shell 401 is provided with a front-to-back through hole at a position corresponding to the through hole. The first parallel section 410 of the wiring member 41 passes backwards through the through hole on the front shell 402 and the through hole on the rear shell 401 for wiring. A sink groove is provided on the front end surface of the front shell 402 for accommodating the connecting section connecting the two parallel sections. A main body sealing plate is fixedly installed on the front side of the front shell 402 for limiting the wiring member 41 in the front shell 402. A central through hole is provided at the center of the main body cover plate, and a guide hole is provided at the center of the front housing 402, which is through from front to back. The rear end of the mounting rod 31 corresponding to the switch body extends into the guide hole, and an insulating transmission rod 431 is installed in the guide hole for guiding and sliding. The insulating transmission rod 431 is fixedly connected to the short-circuit 43, and the mounting rod 31 is located in front of the insulating transmission rod 431 and drives the short-circuit 43 to move by pushing the insulating transmission rod 431. In this way, the transmission between the mounting rod 31 and the short-circuit 43 is realized by the insulating transmission rod 431 that is guided and matched with the cavity wall of the floating inner cavity in the front-to-back direction. This structural form can be at the rear side of the switch body 40.

[0070] In one embodiment, the trigger end 311 at the rear end of the mounting rod 31 can contact the short-circuit 43 which is also at the front limit position when it is at the front limit position. When the trigger end 311 moves backward with the mounting rod 31, it pushes the short-circuit 43 to move backward, thereby quickly realizing the separation between the short-circuit 43 and the connecting member 41. In another embodiment, the trigger end 311 at the rear end of the mounting rod 31 can drive the short-circuit 43 which is at the front limit position to move backward only after it moves backward a certain distance, so as to avoid the travel switch 4 from sending an erroneous signal due to a small vibration or a small displacement of the mounting rod 31.

[0071] In one embodiment, the rear end of the mounting rod 31 extending into the columnar body can directly push the short-circuit 43 during the backward movement. However, since the movement of the mounting rod 31 is affected by the push of the adapter connector and the mounting rod 31 is installed in the mounting rod through hole 200, the accuracy of its linear movement is limited. Fig.19 In the embodiment shown, an insulating transmission rod 431 is installed in the cavity wall of the floating inner cavity in a guided and movable manner in the front-to-back direction. The insulating transmission rod 431 is fixedly connected to the short-circuit 43. The mounting rod 31 is located in front of the insulating transmission rod 431 and has a gap 44 between the mounting rod 31 and the insulating transmission rod 431. The mounting rod 31 drives the short-circuit 43 to move by pushing the insulating transmission rod 431. In this way, the transmission between the mounting rod 31 and the short-circuit 43 is realized by the insulating transmission rod 431 that is guided and matched with the cavity wall of the floating inner cavity in the front-to-back direction. It can ensure that the short-circuit 43 can accurately move in the front-to-back direction during the backward movement of the mounting rod 31, prevent the movement from being stuck due to skewing, and further improve the reliability of the product during use.

[0072] To facilitate the structure setting, such as Fig.19 In the embodiment shown, the short-circuit 43 is a stepped shaft structure, a connection hole is provided on the end surface of the large diameter section, the rear end of the insulating transmission rod 431 extends into the connection hole and is connected to the short-circuit 43, the retaining spring 430 is sleeved outside the small diameter section and the front end is pressed against the step surface, and the rear end is pressed against the rear wall of the floating inner cavity, the paired wiring members 41 are respectively located on opposite sides of the insulating transmission rod 431, and the end surface of the large diameter section is in contact with the paired wiring members 41. In this way, the other structures are radially symmetrically arranged with the coaxially arranged structural members such as the mounting rod 31, the insulating transmission shaft and the short-circuit 43 as the center, which can reduce the radial occupied space as much as possible.

[0073] like Figure 20-21 In the embodiment shown, the switch body 40 is a block-shaped body, the rear end of the mounting rod 31 extends to the side of the block-shaped body and forms a trigger end 311, the paired wiring members 41 extend from the side of the block-shaped body corresponding to the mounting rod 31, and the short-circuit member 43 is installed on the trigger end 311 and has a contact surface facing the paired wiring members 41. When the mounting rod 31 moves backward to the limit position, the contact surface short-circuits the paired wiring members 41, and when the mounting rod 31 moves forward to the limit position, the contact surface is separated from the paired wiring members 41. In the embodiment shown in the figure, the block-shaped body is located radially inside the mounting rod 31, and the wiring member 41 includes a contact spring exposed from the outer side of the block-shaped body and a wiring terminal extending from the inner side, and the contact spring is used to cooperate with the short-circuit member 43. The short-circuit 43 is a metal piece fixedly mounted on the rear end of the mounting rod 31. The metal piece has a contact surface facing the side of the block body. The contact surface is used to cooperate with the contact spring. The state change of contact or separation with the contact spring is achieved by the position change of the mounting rod 31 moving forward and backward.

[0074] In one embodiment, the cross-sectional shape of the rear end of the mounting rod 31 is circular, and the metal part can be a metal block or metal sheet embedded in the mounting rod 31. In the embodiment shown in the figure, the rear end of the mounting rod 31 is a round rod cut-in-half structure with a D-shaped cross section, the block-shaped body is on the side corresponding to the plane of the cut-in-half round rod, the paired wiring members 41 are exposed toward the plane of the cut-in-half round rod, and the short-circuit member 43 is a D-shaped metal ring sleeved on the cut-in-half round rod, and the plane of the D-shaped metal ring is the contact surface. By forming a cut-in-half round rod structure at the rear end of the mounting rod 31, the radial dimension occupied by the mounting rod 31 can be reduced, thereby reducing the radial dimension of the connector as a whole. Of course, in other embodiments, the mounting rod 31 can also be arranged side by side with the block-shaped body in the circumferential direction. These methods can all reduce the axial length of the connector.

[0075] The above embodiments are all different modified embodiments based on the same shell structure, and their consistent feature is that the main shell component of the shell includes an annular main shell 20, and a locking sleeve 21 extends forward from the front end of the main shell 20, and a connecting flange 22 is sleeved on the outer peripheral surface of the main shell 20. The connecting flange 22 includes an annular sleeve part and a flange plate located outside the annular sleeve part, and the annular sleeve part is fixedly connected to the main shell 20 by screws passing through its sleeve wall, and the rear end face of the main shell 20 is fixedly connected to the tail shell component 90.

[0076] Tail housing component 90 such as Figure 22-24 As shown, it includes a tail shell ring part 901 for connecting to the rear end of the main shell 20, and a rear extension wall extending backward from the tail shell ring part 901, the rear end of the rear extension wall is connected to a tail sealing plate 905, the travel switch 4 is located in front of the tail sealing plate 905, and a radially through tail outlet channel 900 is provided on the rear extension wall for the cables connected to the rear end of the internal main body 1 to radially pass through. In the embodiment shown in the figure, the annular surface of the tail shell ring part 901 extends radially and is closely connected with the rear end surface of the main shell 20. The tail shell ring part 901 has an avoidance gap at a position corresponding to the accommodating chamber 24. The rear end of the travel switch 4 in the accommodating chamber 24 can be exposed from the avoidance gap and extend into the space surrounded by the rear extension wall. The rear extension wall includes an avoidance wrapping part that wraps around the avoidance gap from the outside, and an inner arc wrapping part 904 extending along the inner circumferential surface of the tail shell ring part 901. The avoidance wrapping part includes an outer arc wrapping part 902 extending along the outer circumferential surface of the tail shell ring part 901 and a radial wrapping part 903 connecting the outer arc wrapping part 902 and the inner arc wrapping part 904. The tail outlet channel 900 is arranged on the inner arc wrapping part 904.

[0077] Based on the above-mentioned tail shell component 90, in a more preferred embodiment, a constraint frame 91 for constraining the wiring harness is installed on the rear end surface of the tail shell ring body part 901 at a radially outer position corresponding to the tail outlet channel 900. The constraint frame 91 can better constrain the tail cables to ensure that they extend radially outward. Specifically, the wiring harness frame includes an arc-shaped sheet body, and both ends of the arc-shaped sheet body are connected with L-shaped connecting legs, one side of the connecting leg extends forward and backward, and the other side is in contact with the rear side surface of the tail shell ring body part 901, and is fixedly connected by screws. The constraint frame 91 of this structural form is simple in structure, can be detachably connected to the tail shell ring body part 901, can be removed when wiring, and can be fixedly connected after the tail cables are passed through and laid, so as to facilitate wiring operations.

[0078] In another embodiment, a tail shell component 90 which is simpler but occupies a slightly larger space is a cylindrical tail shell with an open front end. The cylindrical tail shell is inserted into the main shell 20 through a front port and is fixedly connected to the main shell 20 by threads or radially arranged screws. A radial through opening is provided on the wall of the cylindrical tail shell, which constitutes a tail outlet channel 900.

[0079] Embodiment 2 of the plug-in self-detecting connector of the present invention is as follows Figure 25-34 shown.

[0080] The plug-in self-detecting connector of this embodiment is significantly different from the plug-in self-detecting connectors in the various embodiments described above in terms of the shell structure. The shell structure of the plug-in self-detecting connector of this embodiment is combined with a travel switch assembly of a different structural form to further reduce the axial size of the connector.

[0081] The housing includes a main housing component and a tail housing component 90 connected to the rear side of the main housing component, wherein the main housing component includes an annular main housing 20 and a locking sleeve 21 integrally formed at the front end of the main housing 20 and extending forward, and a connecting flange 22 is integrally formed on the outer circumference of the annular main housing 20. The structure of the driving component 3 can be the same as the structure of the driving component 3 in the above-mentioned various embodiments.

[0082] Travel switch 4 Figure 28-33As shown, the switch body 40 is an arc-shaped strip extending in the circumferential direction and is located on the radial inner side of the mounting rod 31. The paired wiring members 41 are fixed in the switch body 40 at intervals in the circumferential direction. The trigger end 311 includes a short-circuit mounting plate fixed to the rear end of the mounting rod 31. The short-circuit 43 is fixed on the short-circuit mounting plate. The short-circuit 43 is a U-shaped contact with an opening facing forward. The two ends of the U-shaped contact correspond to the two paired wiring members 41 in front and back. When the mounting rod 31 moves forward to the extreme position, the U-shaped contact short-circuits the paired wiring members 41. When the mounting rod 31 moves backward to the extreme position, the U-shaped contact is separated from the paired wiring members 41. In the above structure, the switch body 40 and the mounting rod 31 jointly utilize a part of the axial space, and the switch body 40 is located in front of the short-circuit 43. Compared with the above different embodiments, this structure and layout has a smaller axial dimension.

[0083] The rear end face of the main housing 20 is provided with a receiving cavity 24 for receiving the travel switch 4. In the embodiment shown in the figure, the receiving cavity 24 is connected to the middle annulus of the main housing 20 on the radial inner side, that is, connected to the middle annulus of the main housing 20 for installing the inner body 1, so that the radial dimension of the connector can be reduced as much as possible. Fig.28 The travel switch 4 is shown as being entirely in the accommodating cavity 24 , and the switch body 40 and the short-circuit mounting plate are entirely sunken in the accommodating cavity 24 without protruding from the rear end surface of the main housing 20 , and the axial occupied space is also relatively small.

[0084] The switch body 40 is located at the front side of the short-circuit 43, which means that the paired wiring members 41 are located at the front side of the short-circuit 43. If the lead wires are led out at the front side of the switch body 40, it is necessary to reserve a lead wire space at the position corresponding to the front side of the switch body 40 on the main housing 20. Although this embodiment is feasible, it is not convenient for the processing of the main housing 20 and the lead wire operation, because in a preferred embodiment, as Figure 31-33 As shown, the terminal block 41 is a U-shaped folded structure. Among the two parallel sections of the U-shaped folded structure, the end of the first parallel section 410 is exposed from the rear end of the arc-shaped strip body for wiring. It should be noted that the "exposed" here can be extended from the rear end of the arc-shaped strip body, or it can be sunken into the rear end surface of the arc-shaped strip body but can be exposed from the rear side, with the main purpose of being able to connect. The second parallel section 411 corresponds to one end of the U-shaped contact piece front and back, and the two parallel sections are spaced apart in the circumferential direction of the arc-shaped strip body. In one embodiment, the U-shaped contact piece and the paired terminal blocks 41 can achieve conduction by end face abutment. In another embodiment, in order to ensure reliable contact and conduction without increasing the axial size, the U-shaped contact piece is a U-shaped pin, and the parallel section of the terminal block 41 corresponding to one end of the U-shaped pin is a socket structure for inserting one end of the U-shaped pin.

[0085] Based on the structure described above, since the travel switch 4 is entirely in the accommodating cavity 24 and does not protrude in the rearward direction from the rear end face of the main housing 20, based on the above embodiment, in order to reduce the axial size of the connector, the tail housing component 90 includes a tail plugging plate 80 extending perpendicular to the axis of the main housing 20, and the tail plugging plate 80 is closely connected to the rear end face of the main housing 20. The rear end of the main housing 20 is provided with a radially penetrating tail outlet channel 900 for the cables connected to the rear end of the internal body 1 to pass radially out. Fig.34 As shown, a connection flange 801 is provided at the edge of the front side of the tail plugging plate 80, and the tail plugging plate 80 is fixedly connected to the main shell 20 at the connection flange 801 by connecting screws.

[0086] In a more preferred embodiment, in order to better restrict the direction of the tail cables, the tail plugging plate 80 is provided with an extension section 802 extending radially outward at a position corresponding to the tail outlet channel 900, and a restraining channel for restraining the wire harness is provided at the front side of the outer end of the extension section 802. Specifically, a U-shaped wire clamp 81 is detachably connected to the front side of the outer end of the extension section 802, and the restraining channel is formed by the U-shaped wire clamp 81 and the extension section 802.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A plug-in self-detecting connector, comprising a housing and an internal body (1), characterized in that: The connector further comprises a travel switch assembly mounted in the housing, the travel switch assembly comprising a travel switch (4) and a driving component (3), the driving component (3) being located radially outside the locking sleeve (21) and having a driven end extending to the front side of the housing and radially outside the locking sleeve (21), and a trigger end (311) located at the rear side of the driven end and used to cooperate with the travel switch (4), the driving component (3) being provided with a return spring (32) providing elastic force to the driving component (3) toward the front side, the housing being provided with an anti-slip stop structure for stopping the driving component (3), the driven end of the driving component (3) being used to be pushed back when the adapter connector is inserted, the trigger end (311) retreating with the driven end and changing the on-off state of the travel switch (4), and when the adapter connector is removed, the return spring (32) pushes the driving component (3) back to the limit position and changes the on-off state of the travel switch (4) again.

2. The plug-in self-detecting connector according to claim 1, characterized in that: The driving component (3) comprises a driven ring body (30) and a mounting rod (31) connected to the rear side of the driven ring body (30); the driven ring body (30) is arranged around the inner main body (1) and its front end constitutes a driven end; the outer shell is provided with a mounting rod through hole (200) for the mounting rod (31) to pass through from front to rear; the outer shell is provided with a mounting rod stopping structure for stopping the mounting rod (31); the mounting rod stopping structure constitutes the anti-slip stopping structure; and the rear end of at least part of the mounting rod (31) is provided with the trigger end (311).

3. The plug-in self-detecting connector according to claim 2, characterized in that: The return spring (32) is a compression spring acting between the rear end of the mounting rod (31) and the housing.

4. The plug-in self-detecting connector according to claim 2, characterized in that: The mounting rod through hole (200) is a stepped hole that is smaller at the front and larger at the rear, the mounting rod (31) has an outer flange (310) at the rear, and the mounting rod stop structure is a step surface of the stepped hole and is used to stop and cooperate with the outer flange (310).

5. The plug-in self-detecting connector according to any one of claims 2 to 4, characterized in that: The driven ring body (30) comprises a connecting ring body (301) and a rotating ring body (302); the rotating ring body (302) is arranged to rotate around its own axis on the front side of the connecting ring body (301); the connecting ring body (301) is connected to the mounting rod (31); and the front end surface of the rotating ring body (302) constitutes the driven end.

6. The plug-in self-detecting connector according to claim 5, characterized in that: The driven ring body (30) comprises a thrust bearing, wherein the two thrust washers of the thrust bearing, the one located at the front side constitutes a rotating ring body (302), and the one located at the rear side constitutes the connecting ring body (301), and the driven ring body (30) further comprises a retaining member (303) for maintaining a certain front-to-rear distance between the two thrust washers.

7. The plug-in self-detecting connector according to claim 6, characterized in that: The connecting ring body (301) is provided with a radially penetrating screw hole and a connecting hole extending backwards from the screw hole and penetrating to the rear end surface of the connecting ring body (301); the front end of the mounting rod (31) extends from the connecting hole into the screw hole, and a locking nut is connected to the end extending into the screw hole.

8. The plug-in self-detecting connector according to any one of claims 2 to 4, characterized in that: The housing comprises a main housing component and a tail housing component (90) connected to the rear side of the main housing component. The main housing component comprises an annular main housing (20) arranged outside an internal body (1). A locking sleeve (21) is connected to the main housing (20). The tail housing component (90) is connected to the rear side of the main housing (20) to cover the internal body (1). The mounting rod (31) and the travel switch (4) are both mounted on the main housing (20).

9. The plug-in self-detecting connector according to claim 8, characterized in that: The travel switch (4) comprises a switch body (40) and a short-circuit member (43). The switch body (40) is fixed to the main housing (20). The short-circuit member (43) is connected to the trigger end (311) or is movably mounted on the switch body (40). The switch body (40) has a pair of connecting members (41). The short-circuit member (43) is used to contact the connecting members (41) or to be separated from the connecting members (41) when driven by the trigger end (311) to switch the on and off states of the pair of connecting members (41). The switch body (40) and the mounting rod (31) are arranged at intervals in the front-to-back direction.

10. The plug-in self-detecting connector according to claim 8, characterized in that: The annular main housing (20) is provided with a receiving chamber (24) for receiving the travel switch (4), and the travel switch (4) is located in the receiving chamber (24).

11. The plug-in self-detecting connector according to claim 10, characterized in that: The accommodating chamber (24) is radially connected to the inner space of the annular main housing (20).

12. The plug-in self-detecting connector according to claim 9, 10 or 11, characterized in that: The switch body (40) is a plate-shaped body, and a guide structure is provided on the plate-shaped body at a position corresponding to the front and rear of the mounting rod (31). The paired wiring members (41) are arranged beside the guide structure on the plate-shaped body. The trigger end (311) includes a short-circuit member mounting plate fixed to the rear end of the mounting rod (31). The short-circuit member (43) is fixed to the short-circuit member mounting plate. The short-circuit member (43) is a U-shaped plug with an opening facing backwards. The two ends of the U-shaped plug correspond to the front and rear of the paired wiring members (41). When the mounting rod (31) moves backward to the extreme position, the U-shaped plug short-circuit the paired wiring members (41). When the mounting rod (31) moves forward to the extreme position, the U-shaped plug is separated from the paired wiring members (41).

13. The plug-in self-detecting connector according to claim 12, characterized in that: The paired wiring members (41) are arranged on the radial inner side of the guide structure on the plate-shaped body, and the two parallel sides of the U-shaped pins are spaced in parallel in the circumferential direction.

14. The plug-in self-detecting connector according to claim 12, characterized in that: A blind hole is formed at the rear end of the mounting rod (31); the guide structure is a guide column (34) matched with the blind hole; and a corresponding return spring (32) is sleeved on the guide column (34).

15. The plug-in self-detecting connector according to claim 9, 10 or 11, characterized in that: The switch body (40) is a columnar body, the rear end of the mounting rod (31) extends into the columnar body and forms a trigger end (311), the rear end of the corresponding return spring (32) abuts against the columnar body, the columnar body has a floating inner cavity just behind the mounting rod (31), the short-circuit member (43) is movably mounted in the floating inner cavity in the front-rear direction, the short-circuit member (43) moves with the trigger end (311) at least in a part of the moving stroke of the trigger end (311), and the paired wiring members (41) are arranged in the cavity wall of the floating inner cavity and have a part leaking in the floating inner cavity.

16. The plug-in self-detecting connector according to claim 15, characterized in that the pair The connecting piece (41) is exposed at the front wall of the floating inner cavity. A retaining spring (430) is installed in the floating inner cavity to provide elastic force for the short-circuit piece (43) to move forward. When the trigger end (311) moves backward to drive the short-circuit piece (43) to operate, the short-circuit piece (43) is separated from the paired connecting piece (41).

17. The plug-in self-detecting connector according to claim 16, characterized in that: After the trigger end (311) moves backwards a certain distance, it drives the short-circuit member (43) to move and separate from the paired connecting members (41).

18. The plug-in self-detecting connector according to claim 17, characterized in that: An insulating transmission rod (431) is installed in the cavity wall of the floating inner cavity in a guided and movable manner in the front-to-back direction. The insulating transmission rod (431) is fixedly connected to the short-circuit piece (43). The installation rod (31) is located at the front side of the insulating transmission rod (431) and drives the short-circuit piece (43) to move by pushing the insulating transmission rod (431).

19. The plug-in self-detecting connector according to claim 18, characterized in that: The short-circuit (43) is a stepped shaft structure, and a connection hole is provided on the end surface of the large diameter section. One end of the insulating transmission rod (431) extends into the connection hole and is connected to the short-circuit (43). The retaining spring (430) is sleeved outside the small diameter section and pressed against the step surface. The paired wiring members (41) are respectively located on opposite sides of the insulating transmission rod (431), and the end surface of the large diameter section is in contact with the paired wiring members (41).

20. The plug-in self-detecting connector according to any one of claims 16 to 18, characterized in that: The wiring member (41) comprises an elastic contact member extending forward and backward, and the rear end of the elastic contact member is exposed from the front side cavity wall of the floating inner cavity.

21. The plug-in self-detecting connector according to any one of claims 16 to 18, characterized in that: The wiring member (41) is a U-shaped folded structure. Of the two parallel sections of the U-shaped folded structure, the end of the first parallel section (410) passes through the radial outer side of the floating inner cavity and is exposed from the rear end of the columnar body for wiring, and the end of the second parallel section (411) is exposed from the front side wall of the floating inner cavity.

22. The plug-in self-detecting connector according to claim 9, 10 or 11, characterized in that: The travel switch (4) comprises a switch body (40) and a short-circuit member (43); the switch body (40) is fixed to a main housing component; the short-circuit member (43) is connected to a trigger end (311) or is movably mounted on the switch body (40); the switch body (40) has a pair of wiring members (41); the short-circuit member (43) is used to contact the wiring members (41) or to be separated from the wiring members (41) when driven by the trigger end (311) to switch the on and off states of the pair of wiring members (41); the switch body (40) and the mounting rod (31) are spaced apart in a radial direction or a circumferential direction.

23. The plug-in self-detecting connector according to claim 22, characterized in that: The switch body (40) is a block-shaped body, the rear end of the mounting rod (31) extends to the side of the block-shaped body and forms a trigger end (311), the paired wiring members (41) extend from the side of the block-shaped body corresponding to the mounting rod (31), the short-circuit member (43) is mounted on the trigger end (311) and has a contact surface facing the paired wiring members (41), when the mounting rod (31) moves backward to the extreme position, the contact surface short-circuits the paired wiring members (41), and when the mounting rod (31) moves forward to the extreme position, the contact surface is separated from the paired wiring members (41).

24. The plug-in self-detecting connector according to claim 23, characterized in that: The switch body (40) is located radially inside the mounting rod (31).

25. The plug-in self-detecting connector according to claim 23 or 24, characterized in that: The rear end of the mounting rod (31) is a half-round rod structure with a D-shaped cross section, the block-shaped body is located on the side corresponding to the plane of the half-round rod, the paired connecting pieces (41) are exposed toward the plane of the half-round rod, and the contact surface of the short-circuit piece (43) is located on the plane of the half-round rod.

26. The plug-in self-detecting connector according to claim 25, characterized in that: The short-circuit piece (43) is a sleeve structure with a D-shaped cross section, and the short-circuit piece (43) is sleeved on the semicircular rod.

27. The plug-in self-detecting connector according to claim 22, characterized in that: The switch body (40) is in the shape of an arc strip extending in the circumferential direction and is located radially inside the mounting rod (31). The paired wiring members (41) are fixed in the switch body (40) at intervals in the circumferential direction. The trigger end (311) comprises a short-circuit member mounting plate fixed to the rear end of the mounting rod (31). The short-circuit member (43) is fixed to the short-circuit member mounting plate. The short-circuit member (43) is a U-shaped contact member with an opening facing forward. The two ends of the U-shaped contact member correspond to the front and rear of the paired wiring members (41). When the mounting rod (31) moves forward to the extreme position, the U-shaped contact member short-circuits the paired wiring members (41). When the mounting rod (31) moves backward to the extreme position, the U-shaped contact member is separated from the paired wiring members (41).

28. The plug-in self-detecting connector according to claim 27, characterized in that: The wiring member (41) is a U-shaped folded structure. Of the two parallel sections of the U-shaped folded structure, the end of the first parallel section (410) is exposed from the rear end of the arc-shaped strip body for wiring, and the second parallel section (411) corresponds to one end of the U-shaped contact member in the front and rear direction. The two parallel sections are arranged at intervals in the circumferential direction of the arc-shaped strip body.

29. The plug-in self-detecting connector according to claim 28, characterized in that: The U-shaped contact piece is a U-shaped plug pin, and the parallel section of the terminal piece (41) corresponding to one end of the U-shaped plug pin is a plug hole structure for inserting one end of the U-shaped plug pin.

30. The plug-in self-detecting connector according to claim 10 or 11, characterized in that: The tail shell component (90) comprises a tail shell ring body portion (901) for connecting to the rear end of the main shell (20), and a rear extension wall extending rearwardly from the tail shell ring body portion (901), the rear end of the rear extension wall being connected to a tail sealing plate (905), the travel switch (4) being located in front of the tail sealing plate (905), and a radially penetrating tail outlet channel (900) being provided on the rear extension wall for radially passing cables connected to the rear end of the internal main body (1).

31. The pluggable self-detecting connector according to claim 30, characterized in that: The annular surface of the tail shell ring body part (901) extends radially and is closely connected to the rear end surface of the main shell body (20); the tail shell ring body part (901) has an avoidance notch at a position corresponding to the accommodating cavity (24); the rearwardly extended surrounding wall comprises an avoidance wrapping portion that wraps around the avoidance notch from the outside, and an inner arc wrapping portion (904) extending along the inner circumferential surface of the tail shell ring body part (901); the avoidance wrapping portion comprises an outer arc wrapping portion (902) extending along the outer circumferential surface of the tail shell ring body part (901) and a radial wrapping portion (903) connecting the outer arc wrapping portion (902) and the inner arc wrapping portion (904); and the tail outlet channel (900) is arranged on the inner arc wrapping portion (904).

32. The pluggable self-detecting connector according to claim 31, characterized in that: A restraining frame (91) for restraining the wire harness is installed on the rear end surface of the tail shell ring body part (901) at a radially outer position corresponding to the tail outlet channel (900).

33. The plug-in self-detecting connector according to claim 10 or 11, characterized in that: The tail housing component comprises a tail plugging plate (80) extending perpendicularly to the axis of the main housing (20); the tail plugging plate (80) is fitted and connected to the rear end surface of the main housing (20); and the rear end of the main housing (20) is provided with a radially penetrating tail outlet channel for radially passing cables connected to the rear end of the internal body (1).

34. The plug-in self-detecting connector according to claim 33, characterized in that: The tail blocking plate (80) is provided with an extension section (802) extending radially outward at a position corresponding to the tail outlet channel, and a restraining channel for restraining the wire harness is provided at the front side of the outer end of the extension section (802).

35. The plug-in self-detecting connector according to any one of claims 1 to 4, characterized in that: There are two travel switches (4).

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