Headstock assembly and socket thereof

Abstract

The invention provides a headstock assembly and a socket thereof, a rotating shaft is rotatably installed in the socket, a hook groove is installed or formed in the rotating shaft, a lock pin is fixed on the plug of the headstock assembly, the rotating shaft rotates to drive the hook groove to hook and pull the lock pin towards the socket, and an elastic piece is arranged between the opposite surfaces of the plug and the socket. The elastic piece provides acting force in opposite directions for the plug and the socket when the hook groove hooks and pulls the lock pin towards the socket, so that when the lock pin and the hook groove are hooked and locked, the plug and the socket are always mutually supported tightly, relative fixation of the plug and the socket is realized by hooking and pulling and supporting, and the locking is relatively reliable. And the size error of the headstock in the insertion direction is compensated through the elastic deformation of the elastic piece, so that the machining precision and the assembly precision of the headstock are reduced.

Description

[0001] This application is a divisional application of the Chinese patent application with the application date of December 15, 2017, application number 201711350486.1, and invention name “A head seat assembly and its socket”. Technical Field

[0002] The invention relates to the field of conductive connection, and in particular to a header assembly and a socket, wherein the header assembly comprises an auxiliary structure which can facilitate the combination of a plug and a socket. Background Art

[0003] With the continuous development of communication information technology, the number of power transmission circuits in electrical connectors is increasing. For header assemblies that achieve conductive connection by contact and deformation of conductive contacts of plugs and sockets, the insertion resistance of the plugs and sockets during mutual insertion is also increasing.

[0004] The prior art also provides different solutions for how to reduce or eliminate such insertion resistance. For example, the Chinese invention patent with application number 01145694.9 discloses a low insertion force type connector, which is actually a socket, including a shell and a contact group arranged in the shell, that is, a conductive contact group. A shaft is also rotatably installed in the shell, and the outer peripheral surface contour line of the shaft is in the shape of a cam contour, so when the shaft rotates, it can push the contact group to deflect through its outer peripheral surface. There is an insertion space for the plug's matching conductive contact group to be inserted in the shell, and the insertion space is located on one side of the conductive contact group on the socket. When the shaft rotates and pushes the conductive contact group of the socket to deflect, the conductive contact group of the socket can contact the conductive contact group of the plug extending into the insertion space. That is to say, during the insertion process, the conductive contacts of the plug and the socket do not come into contact, and of course there is no insertion resistance, or even if there is insertion resistance, the insertion resistance is very small, thereby solving the above-mentioned problem.

[0005] Furthermore, this connector is also provided with a hook-shaped element, i.e., a hook groove, on the shaft, and correspondingly, a protrusion, i.e., a locking pin, on the plug. During the plugging process, the plug is first inserted into the socket, and then the conductive contact of the conductive contact piece is achieved by rotating the shaft, and the rotation of the shaft drives the hook-shaped element to rotate and hook and press down the protrusion, and the protrusion is pressed to further achieve the mutual insertion of the plug and the socket. The shell end faces of the header are abutted, and the hook-shaped element hooks the protrusion to force the headers to insert into each other. Under the action of these two factors, the locking of the header is achieved. In other words, for the convenience of use, this connector achieves both the conductive contact and the mutual locking of the headers by rotating the shaft.

[0006] However, due to the existence of processing errors and assembly errors, in actual use, it is very likely that when the hook-shaped element hooks the protrusion and presses it down to the bottom of the hook-shaped element, the head seat shell has not yet abutted against it, so that the head seat can still move relatively in the plug-in direction; or when the hook-shaped element hooks the protrusion but has not yet pressed it down to the bottom of the hook-shaped element, the head seat shell has already abutted against it, so that the hook-shaped element fails to hook the protrusion through its bottom, which can easily cause the protrusion and the hook-shaped element to slide relative to each other in a vibration environment, and the head seat moves relative to each other, causing the locking to fail. At the same time, the poor contact between the head seat shell and the head seat assembly also seriously affects the shielding effect of the head seat assembly. Even if the precision of the precision work and the assembly accuracy are improved so that the head seat shell just abuts against each other when the hook-shaped element presses the protrusion down to its bottom position, this will also cause the locking structure to be over-positioned with the end face of the head seat. Therefore, it can be seen that this type of connector has poor reliability and poor practicality when in use. Summary of the invention

[0007] The object of the present invention is to provide a head seat assembly with reliable locking, and at the same time, also provides a socket included in the assembly.

[0008] To achieve the above purpose, a rotating shaft is rotatably installed in the socket of the head seat assembly of the present invention, a hook groove is installed or provided on the rotating shaft, a locking pin is fixed on the plug of the head seat assembly, the rotation of the rotating shaft can drive the hook groove to hook and pull the locking pin toward the socket, and an elastic member is provided between the opposite surfaces of the plug and the socket, and the elastic member provides a force in opposite directions to the plug and the socket when the hook groove hooks and pulls the locking pin toward the socket, so that when the locking pin and the hook groove are hooked and locked, the two are always tightly supported against each other, so that one hook pulls and one support realizes the relative fixation of the plug and the socket, and the locking is more reliable. Moreover, the dimensional error of the head seat in the plugging direction is compensated by the elastic deformation of the elastic member, which reduces the processing accuracy and assembly accuracy of the head seat.

[0009] Specifically, the header assembly of the present invention is a low insertion force or zero insertion force type connector. One side of the conductive contact installed in the socket has an insertion space for the matching contact on the plug to extend into, and the rotating shaft has or is relatively fixed with an eccentric pushing surface for pushing the conductive contact in the socket, and when the rotating shaft rotates, the conductive contact can be pushed into the insertion space by the eccentric pushing surface to contact the matching contact, or the conductive contact can be pushed out of the insertion space by the eccentric pushing surface to overcome the elasticity of the conductive contact and make way for the insertion space. That is to say, the conductive contact in the socket is naturally located on one side of the plugging space. As the plug is plugged in, the adapter contact on it extends into the plugging space, and then the conductive contact is pressed onto the adapter contact by rotating the shaft through the eccentric push surface on it to achieve the conduction of the contact in the header; or, the conductive contact in the socket can also be naturally located in the plugging space. Before inserting the plug, the eccentric push surface on it is rotated to push the conductive contact out of the plugging space and make way for the plugging space. At this time, as the plug is inserted, the adapter contact on it extends into the plugging space, and then the shaft is rotated so that the eccentric push surface no longer pushes the conductive contact. At this time, the conductive contact returns to its natural state under its own elasticity and contacts with the adapter contact in the plugging space. These two methods make the insertion force of the adapter contact on the plug low or even zero during the insertion of the plugging space.

[0010] More specifically, when setting the internal structure of the socket, the conductive contacts are arranged in groups along the rotating shaft and there are even groups, the number of rotating shafts is half the number of the conductive contact groups, and one rotating shaft is arranged between two adjacent groups of conductive contacts, and there are two eccentric pushing surfaces corresponding to the same rotating shaft, which are respectively used to push the two groups of conductive contacts corresponding to the same rotating shaft. In this way, the two groups of conductive contacts can be pushed by one rotating shaft, and the structure is compact and simple.

[0011] There are many forms of eccentric push surface. In specific settings, a camshaft can be mounted on the rotating shaft or the outer peripheral surface of the rotating shaft can be the cam surface. In this way, the eccentric push surface can be set as the outer contour surface at the maximum diameter of the cam, and the structure is relatively simple.

[0012] Of course, when a large number of signal transmission circuits are required, the conductive contacts can have four, six, eight or more even groups, and the number of rotating shafts will be more than two. In order to make the rotation of more rotating shafts more convenient, the rotating shafts can be linked.

[0013] In addition, the above solutions do not limit or explain the connection relationship of the elastic member. Specifically, considering the versatility and interchangeability of the plug and the socket, the elastic member can be fixedly installed on the socket housing to constitute a part of the socket.

[0014] On this basis, more specifically, the elastic member can be set at the bottom of the socket's plug-in cavity, and elastically pressed against the front end surface of the plug-in end. In this way, after the head seat is inserted, the elastic member is located inside the head seat, and the surface structure of the head seat is neat, which is conducive to sealing.

[0015] Considering that a rotating shaft is installed in the socket, it is preferred to set the socket as a rectangular socket, and the conductive contact piece is more reasonably set in the middle position inside the rectangular socket. There can be more than two elastic members and they are set at both ends of the length direction of the socket cavity.

[0016] The various solutions above do not limit or explain the structural form of the elastic member. In this solution, it can be specifically limited to a spring-type structure, which is simpler and more space-saving than a cylindrical spring, a conical spring or a torsion spring.

[0017] As described in the background technology, if the head seat shell cannot be in good contact, it will seriously affect the shielding effect of the head seat assembly. In this solution, the elastic member is limited to a metal member, so that when the head seat shell adopts a metal shell, the good electrical contact of the head seat is guaranteed, which is conducive to improving the shielding effect. Of course, in this solution, the elastic member is not limited to a spring-type structure, but can also be in the form of the above-mentioned cylindrical spring, conical spring or torsion spring.

[0018] As described in the above scheme, there can be multiple rotating shafts. Here, it can be specifically limited that when there are two rotating shafts, the structure of the elastic member can be set as follows: the elastic member includes a fixed section fixedly connected to the socket and an arm section elastically pressed against the plug, there are two arm sections and they are located on both sides of the fixed section, and the lower side of the arm section forms an escape space for avoiding two adjacent rotating shafts. The elastic member of this structural form is combined with the spatial structure setting in the socket, and basically only occupies the gap space between the two when the header is plugged in, thereby greatly saving the volume of the socket and the space occupied by the header assembly.

[0019] On the basis of the previous technical solution, the arm section can be optimally set to be an arc-shaped tilt around the rotation axis, which can further improve the shape coupling between the elastic member and the rotation axis and reduce the occupied space.

[0020] Specifically, the socket includes a socket housing and an insulator for press-fitting the rotating shaft into the socket housing, and the fixing section of the elastic member is pressed between the insulator and the socket housing. This not only makes the structure more compact, but also makes little change to the socket structure compared to the existing connector, and the design and manufacturing costs are low.

[0021] Of course, in order to facilitate the mutual positioning between the elastic member and the insulator, a positioning structure that matches the fixing section in a concave-convex manner may be provided on the side of the insulator facing the socket housing.

[0022] The technical solution of the socket of the present invention is substantially the same as the technical solution of the socket in the above-mentioned header assembly, and the beneficial effects are also substantially the same. The solution of the socket will be briefly described below to distinguish it from the solution of the header assembly.

[0023] That is, the socket comprises a socket housing, a rotating shaft is rotatably installed in the socket housing, a hook groove for hooking and locking with a lock pin on the plug is installed or opened on the rotating shaft, and an elastic member is also installed in the socket housing. When the socket is in use, when the elastic member hooks the hook groove and pulls the lock pin on the plug toward the socket, it provides a force in opposite directions to the plug and the socket, so that when the lock pin is hooked and locked with the hook groove, the two are always tightly supported against each other, so that the relative fixation of the plug and the socket is achieved by one hook, one pull and one support, and the locking is more reliable.

[0024] Furthermore, a conductive contact is installed in the socket housing, and one side of the conductive contact has an insertion space for the matching contact on the plug to extend into. The rotating shaft has or is relatively fixed with an eccentric pushing surface for pushing the conductive contact in the socket, and when the rotating shaft rotates, the conductive contact can be pushed into the insertion space by the eccentric pushing surface to contact the matching contact, or the eccentric pushing surface can overcome the elasticity of the conductive contact to push it out of the insertion space to make way for the insertion space.

[0025] More preferably, the conductive contacts are arranged in groups along the rotating shaft and there are an even number of groups, the number of rotating shafts is half the number of groups of conductive contacts, and one rotating shaft is arranged between two adjacent groups of conductive contacts, and there are two eccentric pushing surfaces corresponding to the same rotating shaft and they are respectively used to push the two groups of conductive contacts corresponding to the same rotating shaft.

[0026] On the basis of the above solution, the eccentric push surface can be set as the outer contour surface at the maximum diameter of the cam; or, more than two rotating shafts can be set, and each rotating shaft can be linked.

[0027] On the basis of the above-mentioned various schemes, a variety of parallel or continuous optimization and improvements can be carried out.

[0028] For example, the socket housing is provided with a plug-in cavity for inserting the plug-in end of the plug, and the elastic member is arranged at the bottom of the plug-in cavity; it can also be further defined that the socket is a rectangular socket, and there are more than two elastic members and they are arranged at both ends of the length direction of the socket plug-in cavity.

[0029] For another example, the elastic member adopts a spring-type structure; for further optimization, the socket shell is a metal shell, and the elastic member adopts a metal contact electrically connected to the socket shell; or it is further limited that there are two rotating shafts, the elastic member includes a fixed section fixedly connected to the socket and a tilting arm section elastically pressed against the plug, there are two tilting arm sections and they are located on both sides of the fixed section, and the lower side of the tilting arm section forms an avoidance space for avoiding two adjacent rotating shafts; it can even be further limited that the tilting arm section is tilted in an arc shape around the rotating shaft.

[0030] In addition, the socket also includes an insulator for press-fitting the rotating shaft into the socket housing, and a positioning structure that matches the fixing section in a concave-convex manner is provided on the side of the insulator facing the socket housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the embodiment 1 of the head seat assembly of the present invention in the plugged-in state; Figure 2 for Figure 1 The structural diagram of the plug; Figure 3 for Figure 1 A schematic diagram of the structure of the middle socket; Figure 4 It is a three-dimensional exploded diagram of the socket; Figure 5 for Figure 4 A schematic diagram of the structure of the rotating shaft assembly; Figure 6 for Figure 4 Schematic diagram of the structure of the middle insulating pressure plate; Figure 7 for Figure 4 A schematic diagram of the structure of the elastic member; Figure 8~Figure 10 Several cross-sectional views showing the plug of the header assembly just inserted into the socket and not yet locked in connection; Figure 11~Figure 13 Several cross-sectional views showing the plug and socket of the header assembly in a locked connection state; in, Figure 8 , 11 A cross-sectional view showing the relationship between the conductive contacts of a plug and a socket; Fig. 9 , 12 A cross-sectional view showing the relationship between the elastic member and the plug housing and the socket housing; Fig.10 , 13 A cross-sectional view showing the relationship between the hook groove on the socket and the locking pin on the plug.

[0032] In the figure: 1. plug housing; 10. plug contact; 11. locking pin; 2. socket housing; 20. socket contact; 21. rotating shaft; 22. camshaft; 23. insulator; 230. connecting screw; 231. contact accommodating cavity; 232. screw through hole; 233. pressing surface; 234. positioning boss; 235. lock hook avoidance hole; 239. spring piece avoidance hole; 24. transmission gear; 25. lock hook; 26. rotating rod; 260. rotating handle; 28. insertion space; 29. ​​elastic member; 290. fixing section; 291. positioning hole; 292. screw through hole; 293. tilting arm section. DETAILED DESCRIPTION

[0033] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] The header assembly of the present invention is exemplified by a low insertion force or zero insertion force connection assembly, such as Figure 1 As shown, it includes a plug and a socket. Both the plug and the socket are rectangular connectors. The plug is provided with plug contacts in groups, and the socket is provided with socket contacts in groups. The plug contacts correspond to the socket contacts. The contacts constituting the same plug contact group and the same socket contact group are arranged in the length direction of the connector, and multiple contact groups are arranged side by side in the width direction of the connector. The contact groups in the plug and the socket can be only one group, or two groups, three groups, four groups, six groups, etc. The specific number is determined by the actual required power transmission circuit and the volume of the connector. In this embodiment, there are four groups of contact groups in the plug and the socket.

[0035] For the specific structure of the plug, see Figure 2 The plug contact 10 is installed in the rectangular plug housing 1, and the two ends are exposed from the two side surfaces of the plug housing. One end of the plug contact 10 is a wiring terminal, and the other end is a contact end for conductive contact with the socket contact, and the plug part corresponding to this end is called a plug-in end. The two ends of the plug-in end in the length direction are respectively provided with locking pins 11 cantilevered along the length direction of the plug. There are two locking pins 11 at each end, and they are spaced apart in the width direction of the plug.

[0036] For the specific structure of the socket, see Figures 3 to 7 .in, Figure 3 The three-dimensional structure of the socket is fully displayed. Figure 4 The three-dimensional exploded view of the socket is shown more clearly. Figures 5 to 7 It is a structural diagram of some of the main components that make up the socket.

[0037] The socket contacts 20 are installed in groups in the rectangular socket housing 2. In the four groups of socket contacts, every two groups of socket contacts are fixed by an insulating fixing plate. A rotating shaft assembly is also rotatably installed in the rectangular socket housing 2. The rotating shaft assembly is as shown in FIG. Figure 5As shown, it mainly includes two rotating shafts 21 arranged in parallel, and transmission gears 24 are respectively provided at both ends of the two rotating shafts. The two rotating shafts are meshed and transmitted through the transmission gears 24, and when one of them rotates, the other rotates synchronously and oppositely. Lock hooks 25 are respectively installed on the inner side of the transmission gear 24 on the two rotating shafts, that is, on the side away from the shaft end. The lock hook 25 is in the shape of the number "6", and its circular part is mounted on the rotating shaft 21, and the hook-shaped part forms a hook groove. The hook groove openings of the lock hooks 25 arranged on the corresponding ends of the two rotating shafts 21 are opposite to each other. Of course, in other embodiments, a radially extending disc body can be integrally provided on the rotating shaft, and the disc body is provided with a hook groove, and the lock pin is hooked through the hook groove.

[0038] like Figure 8-13 As shown, a hollow camshaft 22 is mounted on the shaft section between the two locking hooks on the two rotating shafts 21. The camshaft 22 can rotate synchronously with the rotating shaft 21 by matching with the corresponding shaft section through profile fit. The outer periphery of the camshaft 22 has two symmetrical large-diameter outer contour surfaces.

[0039] One end of a rotating shaft 21 is connected to a rotating rod 26, and a rotating handle 260 is mounted on the rotating rod 26. The rotating handle 260 can be rotated to drive the two rotating shafts to rotate. When the rotating shaft assembly is installed in the socket housing 2, the rotating rod 26 and the rotating handle 260 extend out of the socket housing. The result is that by setting a height direction ( Figure 4 This is achieved by an open slot extending in the up and down directions (as shown) for the rotating rod to pass through.

[0040] The socket also includes Figure 6 The insulator 23 is shown. One of the functions of the insulator 23 is to clamp the shaft assembly into the socket housing 2 and keep it fixed in other directions except for rotation around the axis. The insulator 23 is connected to the socket housing 2 by a connecting screw 230, and the connecting screw 230 passes between the two shafts.

[0041] After the socket contacts 20, the shaft assembly and the insulator 23 are accurately installed in the socket housing 2, the camshafts 22 on the two shafts 21 are respectively located between two adjacent socket contacts. The outer contour surface of the camshaft 22 at the maximum diameter constitutes an eccentric push surface eccentrically arranged relative to the shaft axis, and when the shaft 21 rotates and drives the camshaft 22 to rotate, the corresponding two socket contacts can be pushed away from each other through the eccentric push surface.

[0042] The insulator 23 is also provided with a contact accommodating cavity 231. After the socket is assembled, the socket contact 20 is located in the contact accommodating cavity 231 of the insulator 23. The side of the end of the socket contact 20 located in the contact accommodating cavity 231 away from its corresponding rotating shaft is a contact portion for conductive contact with the plug contact 10. The socket housing 1 is provided with a plug-in cavity for plug insertion on the side corresponding to the contact end of the socket contact 20. There is an insertion space 24 connected to the insertion cavity between the contact portion of the socket contact 20 and the socket housing 1. When the plug end of the plug is inserted into the insertion cavity, the plug contact 10 extends into the insertion space 24. In this way, the rotating shaft 21 can be rotated to push the socket contact 20 through the cam shaft 22 to make its plug-in portion conductively contact with the plug contact 10.

[0043] The matching relationship and action principle of the above-mentioned plug contacts, socket contacts and rotating shaft are basically consistent with the matching relationship in the prior art cited in the background technology, and the main purpose is to achieve the reduction or elimination of the insertion force. Moreover, similar to the low insertion force type connector of the prior art cited in the background technology, when the rotating shaft 21 of this embodiment rotates, it not only realizes the conductive connection between the socket contacts and the plug contacts as described above, but also hooks and further pulls the lock pin 11 on the plug through the hook groove on the lock hook 25 of the anti-rotation assembly thereon. The main improvement of the present invention has little structural connection with how the contacts of the head seat realize conductive connection and how the head seat is hooked and tightened through the hook groove and the lock pin. Therefore, the present invention only briefly introduces these two parts and does not describe them in detail.

[0044] To explain in more detail and importance, the headstock assembly of the present invention further includes an elastic member 29 .

[0045] In this embodiment, the elastic member 29 is fixedly mounted on the socket housing 2 and constitutes a part of the socket. The elastic member 29 is arranged between the opposite surfaces of the plug and the socket, so that when the plug and the socket are plugged into each other, it can provide forces in opposite directions to both, so that when the hook groove hooks and pulls the lock pin, the plug and the socket are always in an elastically tightened state, which can ensure that the plug and the socket are relatively fixed more reliably than the prior art.

[0046] Specifically, the elastic member 29 is arranged at the bottom of the plug-in cavity of the socket housing, and in order to avoid the contact piece, it is best to arrange the elastic member at both ends of the length direction of the plug-in cavity. Of course, the header assembly of the present invention does not exclude the implementation method of arranging the elastic member at other positions. For example, the elastic member is arranged on both sides of the width direction of the socket, that is, on both sides of the width direction of the contact piece group. In this case, the elastic member can be an elastic piece arranged on the cavity wall of the plug-in cavity and extending along the cavity wall of the plug-in cavity in the length direction. However, this will increase the thickness of the cavity wall of the plug-in cavity, resulting in an increase in the width dimension of the socket.

[0047] The elastic member 29 is a spring-type structure. Figure 4 , 7 As shown in FIGS. 9 and 12, the elastic member 29 includes a fixed section 290 and an arm section 293. The fixed section 290 is in the form of a sheet, and the arm sections 293 have two segments that arc up from both sides of the fixed section 290, forming a wing shape. Of course, the arm sections can also tilt upward in a straight line, in which case the elastic member is V-shaped as a whole. The fixed section 290 is pressed against the socket housing 2 by the insulator 23. Preferably, the insulator 23 is also provided with two spring escape holes 239 for the arm sections 293 to pass through from bottom to top and abut against the plug-in end of the plug housing 1. The fixed section 290 is provided with a screw through hole 292 for the connecting screw 230 to pass through, that is, when the connecting screw 230 connects the insulator and the socket housing, it passes through the fixed section 290, so that the fixed section 290 can also be limited in a plane perpendicular to the plug-in direction.

[0048] In addition, the pressing surface 233 of the insulator 23 corresponding to the fixing section 290 for pressing the fixing section 290 against the socket housing is also provided with a positioning protrusion 234, and correspondingly, the fixing section 290 is also provided with a positioning hole 291 that matches the positioning protrusion 234. In this way, when the elastic member 29 is installed between the insulator and the socket housing, it can be accurately positioned. Of course, it is not excluded that a positioning groove can be provided on the insulator, and a positioning protrusion can be provided on the fixing section accordingly.

[0049] After assembly, the two arc-shaped arm segments 293 of the elastic member 29 just surround the two adjacent rotating shafts 21. When the plug end of the plug is inserted into the plug cavity of the socket, the plug end abuts against the outer arc surface of the arm segment 293. When the plug is in this position, the lock pin 11 is located within the coverage range of the hook groove when the lock hook rotates, so that the rotating shaft 21 can be hooked on the lock pin 11 on the plug through the lock hook 25 while the cam shaft 22 pushes the corresponding socket contact to contact the plug contact, and pulls the lock pin 11 further toward the inside of the plug cavity during the rotation process. When the rotating shaft 21 rotates to the point where the lock pin 11 slides along the lock groove to the bottom position of the lock groove, the plug and the socket are in the locked position, and the compression deformation of the two arm segments of the elastic member 29 reaches the maximum, and the elastic force provided to the plug and the socket to tighten reaches the maximum, which can reliably ensure the locking of the plug and the socket. Of course, when the locking pin is located at the bottom of the hook groove, the direction of the force between the two is preferably in the direction of the connecting line between the rotating shaft and the locking pin, or a recess can be set at the bottom of the hook groove to prevent the locking pin from slipping out of the hook groove during use of the head seat assembly.

[0050] In addition, it should be specially noted that in the head seat assembly of the present invention, the elastic member 29 is a metal member, the socket shell and the plug shell are both metal members, and when the head seat is in the plugged state, the elastic member 29 is electrically connected to the socket shell and the plug shell respectively, thereby ensuring a good shielding effect of the head seat assembly.

[0051] The headstock assembly adopting the technical solution of the present invention also includes other implementations.

[0052] For example, the elastic member of the spring-type structure is fixedly connected to the side surface of the insulator away from the rotation axis through the fixing section, and is not sandwiched between the insulator and the socket housing.

[0053] For example, the elastic member may be a cylindrical spring or a disc spring extending in the axial direction in the plugging direction, in which case the spring is a compression spring. When the elastic member is a cylindrical spring, a mounting blind hole for accommodating the cylindrical spring may be provided on the socket housing, one end of the cylindrical spring is bonded or screwed into the blind hole, and the other end outside the blind hole may abut against the plug.

[0054] For example, when the shaft rotates, the eccentric pushing surface can also push the socket contacts out of the accommodating space. At this time, when the plug and the socket are plugged in, it is necessary to first rotate the shaft to spread the socket contacts, and then insert the plug into the plug cavity of the socket, and the plug contacts extend into the accommodating space. Then reverse the shaft, and the socket contacts return to the accommodating space and contact with the plug contacts under the action of their own elastic recovery ability.

[0055] When the eccentric pushing surface is the outer contour surface of the cam, the eccentric pushing surface has a smooth transition and will not produce impact on the contact piece when pushing the contact piece. In other embodiments, a push rod extending along the rotating shaft in the length direction and extending radially in the width direction can also be fixed on the rotating shaft, and the contact piece can be pushed through the outer side of the push rod that is away from the axis of the rotating shaft.

[0056] In the above-mentioned embodiment, the shaft linkage can ensure that multiple groups of socket contacts in the socket move synchronously and the locking hooks and locking pins are locked synchronously during the plugging process. In other embodiments, the shaft can be driven to rotate alone, which is more troublesome to operate; or, in other embodiments, the two adjacent shafts can be linked by other transmission structures, such as the utility model patent with application number 201020187250.8, which discloses that pin-groove matching structures are respectively provided on the driving wheel and the driven wheel, that is, on the two locking hooks in the above-mentioned embodiment to achieve linkage.

[0057] In the above embodiment, there are four groups of contact pieces and two rotating shafts. The number of contact piece groups and rotating shafts is in a two-to-one correspondence relationship, and the rotating shaft is located between the two corresponding groups of contact pieces. In other embodiments, the number of contact piece groups and rotating shafts can be in a one-to-one correspondence relationship. In this case, the rotating shaft is located on one side of the corresponding contact piece group.

[0058] In the various embodiments listed above, the elastic member is located on the socket and is a part of the socket. In other embodiments, the elastic member can also be installed on the plug and be a part of the plug. The present invention takes into account the versatility and interchangeability of the plug and the socket, and relatively installs the elastic member on the socket, but does not exclude the embodiment where the elastic member is located on the plug.

[0059] The present invention further provides an embodiment of a socket, the specific structure of the socket is the same as the structure of the socket including the elastic member in the above-mentioned header assembly, and will not be described again here.

Claims

1. A headstock assembly, comprising a plug and a socket, wherein a rotating shaft (21) is rotatably mounted in the socket, a hook groove is mounted or provided on the rotating shaft (21), a locking pin (11) is fixed on the plug, and the rotating shaft (21) can drive the hook groove to hook and pull the locking pin (11) toward the socket when rotating, wherein: An elastic member (29) is also provided between the opposite surfaces of the plug and the socket for providing the plug and the socket with a force in opposite directions when the hook groove hooks and pulls the locking pin (11).

2. The headstock assembly according to claim 1, characterized in that: A conductive contact is installed in the socket, and one side of the conductive contact has an insertion space (28) for a matching contact on the plug to extend into. The rotating shaft (21) has or is relatively fixed with an eccentric pushing surface for pushing the conductive contact in the socket, and when the rotating shaft (21) rotates, the conductive contact can be pushed into the insertion space (28) by the eccentric pushing surface to contact the matching contact, or the conductive contact can be pushed out of the insertion space (28) by the eccentric pushing surface to overcome the elasticity of the conductive contact and thus clear the insertion space (28).

3. The headstock assembly according to claim 2, characterized in that: The conductive contact pieces are arranged in groups along the rotating shaft (21) and have an even number of groups. The number of rotating shafts (21) is half the number of groups of conductive contact pieces, and one rotating shaft (21) is arranged between two adjacent groups of conductive contact pieces. There are two eccentric pushing surfaces corresponding to the same rotating shaft (21) and are respectively used to push the two groups of conductive contact pieces corresponding to the same rotating shaft (21).

4. The headstock assembly according to claim 3, characterized in that: The eccentric thrust surface is the outer contour surface at the maximum diameter of the cam.

5. The headstock assembly according to claim 3, characterized in that: There are more than two rotating shafts (21), and the rotating shafts (21) are linked together.

6. The headstock assembly according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The elastic member (29) is fixedly mounted on the socket housing (2).

7. The headstock assembly according to claim 6, characterized in that: The socket has an inserting cavity for inserting the inserting end of the plug, and the elastic member (29) is arranged at the bottom of the inserting cavity.

8. The headstock assembly according to claim 7, characterized in that: The plug and the socket are both rectangular, and there are more than two elastic members (29) arranged at both ends of the socket in the length direction.

9. The headstock assembly according to claim 8, characterized in that: The elastic member (29) is a spring-type structure.

10. The headstock assembly according to claim 9, characterized in that: There are two rotating shafts (21), and the elastic member (29) comprises a fixed section (290) fixedly connected to the socket and a tilting arm section (293) elastically pressed against the plug. There are two tilting arm sections (293) located on both sides of the fixed section (290), and the lower side of the tilting arm section (293) forms an escape space for escaping two adjacent rotating shafts (21).

11. The headstock assembly according to claim 10, characterized in that: The tilting arm section (293) tilts in an arc shape around the rotation axis (21).

12. The headstock assembly according to claim 10, wherein: The socket comprises a socket housing (2) and an insulator (23) for pressing a rotating shaft (21) into the socket housing (2), and a fixing section (290) of an elastic member (29) is pressed between the insulator (23) and the socket housing (2).

13. The headstock assembly according to claim 12, wherein: A positioning structure that matches the fixing section (290) in a concave-convex manner is provided on the side of the insulating body (23) facing the socket housing (2).

14. The headstock assembly according to claim 9, wherein: The plug housing (1) and the socket housing (2) are both metal housings, and the elastic member (29) is a metal contact piece and is electrically connected to the plug housing (1) and the socket housing (2).

15. The headstock assembly according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The plug housing (1) and the socket housing (2) are both metal housings, and the elastic member (29) is a metal member and is electrically connected to the plug and the socket.

16. A socket, comprising a socket housing (2), a rotating shaft (21) rotatably mounted in the socket housing (2), a hook groove for hooking and locking with a locking pin (11) on a plug mounted on or provided on the rotating shaft (21), wherein: An elastic member (29) is also installed in the socket housing (2) for providing a force in opposite directions to the plug and the socket when the hook groove hooks and pulls the locking pin (11).

17. The socket according to claim 16, characterized in that: A conductive contact is installed in the socket housing (2), and one side of the conductive contact has an insertion space (28) for a matching contact on the plug to extend into. The rotating shaft (21) has or is relatively fixed with an eccentric pushing surface for pushing the conductive contact in the socket, and when the rotating shaft (21) rotates, the conductive contact can be pushed into the insertion space (28) by the eccentric pushing surface to contact the matching contact, or the conductive contact can be pushed out of the insertion space (28) by the eccentric pushing surface to clear the insertion space (28) by overcoming its elasticity.

18. The socket according to claim 17, characterized in that: The conductive contact pieces are arranged in groups along the rotating shaft (21) and have an even number of groups. The number of rotating shafts (21) is half the number of groups of conductive contact pieces, and one rotating shaft (21) is arranged between two adjacent groups of conductive contact pieces. There are two eccentric pushing surfaces corresponding to the same rotating shaft (21) and are respectively used to push the two groups of conductive contact pieces corresponding to the same rotating shaft (21).

19. The socket according to claim 18, characterized in that: The eccentric thrust surface is the outer contour surface at the maximum diameter of the cam.

20. The socket according to claim 18, characterized in that: There are more than two rotating shafts (21), and the rotating shafts (21) are linked together.

21. The socket according to claim 16 or 17 or 18 or 19 or 20, characterized in that: The socket housing (2) is provided with an inserting cavity for inserting the inserting end of the plug, and the elastic member (29) is arranged at the bottom of the inserting cavity.

22. The socket according to claim 21, characterized in that: The socket is a rectangular socket, and there are more than two elastic members (29) arranged at both ends of the socket in the length direction.

23. The socket according to claim 22, characterized in that: The elastic member (29) is a spring-type structure.

24. The socket according to claim 23, characterized in that: The socket housing (2) is a metal housing, and the elastic member (29) is a metal contact sheet electrically connected to the socket housing (2).

25. The socket according to claim 23, characterized in that: There are two rotating shafts (21), and the elastic member (29) comprises a fixed section (290) fixedly connected to the socket and a tilting arm section (293) elastically pressed against the plug. There are two tilting arm sections (293) located on both sides of the fixed section (290), and the lower side of the tilting arm section (293) forms an escape space for escaping two adjacent rotating shafts (21).

26. The socket according to claim 25, characterized in that: The tilting arm section (293) tilts in an arc shape around the rotation axis (21).

27. The socket according to claim 25, characterized in that: The socket further comprises an insulator (23) for press-fitting the rotating shaft (21) into the socket housing (2); a positioning structure which is concave-convexly matched with the fixing section (290) is provided on the side of the insulator (23) facing the socket housing (2).

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