A socket and head assembly using the same

Abstract

The application relates to a connector of low insertion force or zero insertion force type, in particular to a socket and a head socket assembly using the socket. The socket comprises a socket shell, a rotating shaft provided with a hook groove, an insulator matched with the socket shell to limit the rotating shaft, and a fixing assembly used for fixing the insulator on the socket shell. The fixing assembly comprises two pulling structures arranged along the radial direction of the rotating shaft, the interval arrangement direction of the two pulling structures is perpendicular to the plug-in and pull-out direction of the plug and the socket, and the pulling structures correspond to the corresponding side edges of the insulator. The pulling structure comprises one or at least two pulling pieces arranged along the axial direction of the rotating shaft, and the pulling piece is used for matching with the socket shell and the insulator to apply a pulling force to the corresponding side edge of the insulator towards the socket shell. The pulling piece can apply a reverse force to the insulator towards the socket shell, and the unidirectional stress of the edge of the insulator is reduced.

Description

Technical Field

[0001] The present invention relates to a low insertion force or zero insertion force type connector, in particular to a socket and a header assembly using the socket. Background Art

[0002] As the number of contacts in a connector increases, and a single-pole connector becomes a multi-pole connector, the insertion force required for mating the plug and the socket increases, making mating of the plug and the socket difficult or impossible.

[0003] In order to solve the problem of plugging and fitting of multi-pole plugs and sockets, a Chinese invention patent application with application publication number CN108429033A has designed a headstock assembly and a socket thereof, wherein the structure of the socket is as follows: Figure 1 As shown, the socket includes a socket housing 1, within which multiple sets of socket contacts 2 are disposed. The socket also includes a rotating shaft assembly that can drive the socket contacts 2 to deflect to ensure contact between the socket contacts 2 and the plug contacts in the plug, thereby achieving electrical and / or signal conduction. The rotating shaft assembly specifically includes two rotating shafts 9 arranged side by side. A camshaft 10 is fixedly mounted on the exterior of each rotating shaft 9. Drive gears 3 are also fixedly mounted on both ends of each rotating shaft 9, and the drive gears 3 on the two rotating shafts 9 mesh with each other. A locking hook 6 is also fixedly mounted on each end of each rotating shaft 9. A rotating rod 5 is connected to one of the rotating shafts 9, and a handle 4 is mounted on the rotating rod 5. In order to press-fit the rotating shaft 9 onto the socket housing 1, an insulator 7 is also installed in the socket housing 1. The insulator 7 has an arc-shaped groove at the end opposite to the socket housing 1, which is adapted to the rotating shaft 9. During assembly, the insulator 7 and the socket housing 1 cooperate to press-fit the rotating shaft 9 to limit the rotating shaft 9. The insulator 7 is fixed to the socket housing 1 by screws 8 located in the middle of both ends. The two rotating shafts 9 are located on both sides of the screws 8, and the socket contact 2 and the lock hook 6 pass through the insulator 7.

[0004] During use, the plug and socket are mated, with the plug contacts inserted into the socket. Then, the rotating shaft 9 is rotated, causing the camshaft 10 to deflect the socket contacts 2 into contact with the plug contacts. Simultaneously, the locking hook 6 is actuated to engage the locking pin on the plug and lock. Prior art has enabled plug-and-socket mating with low or zero insertion force. However, it has been found that, after prolonged use, the insulators can become easily damaged, and the contact between the plug contacts and the socket contacts can become unstable, leading to unstable signal and / or electrical transmission. Summary of the Invention

[0005] The purpose of the present invention is to provide a socket to solve the technical problems in the prior art that the insulator of the socket is easily damaged and the signal and / or electrical transmission is unstable; and also to provide a header assembly using the socket to solve the technical problems in the prior art that the insulator of the socket in the header assembly is easily damaged and the signal and / or electrical transmission is unstable.

[0006] To achieve the above-mentioned purpose, the technical solution of the socket of the present invention is: a socket comprising:

[0007] socket housing;

[0008] The rotating shaft is provided with or has a hook groove, and the hook groove is used to cooperate with the locking pin on the plug to lock the plug and the socket;

[0009] An insulator cooperates with the socket housing to limit the rotation shaft;

[0010] A fixing assembly, used for fixing the insulator to the socket housing;

[0011] The fixing assembly includes a pulling structure. Two pulling structures are arranged correspondingly along the radial direction of the rotating shaft. The spacing arrangement direction of the two pulling structures is perpendicular to the plugging and unplugging direction of the plug and the socket. The pulling structures correspond to the corresponding side edges of the insulator.

[0012] The pulling structure includes one or at least two pulling members arranged axially along the rotating shaft at intervals. The pulling members are used to cooperate with the socket housing and the insulator to apply a pulling force toward the socket housing to the corresponding side edges of the insulator.

[0013] The beneficial effects of the present invention are as follows: After analysis, it was found that in the prior art, the reason for the damage to the insulator and the instability of signal and / or electrical transmission is that the end of the insulator is fixed by a single screw, and when the plug is pulled, the plug applies a force to the edges of the insulator on both sides through the locking pin and the rotating shaft, so that the force direction on the two sides of the insulator is opposite to the force direction in the middle, generating an overturning torque, causing the edges of the insulator to be easily damaged. In the present invention, there are two pulling structures arranged and located on both sides of the insulator. When in use, when the plug pulls the two sides of the insulator, the pulling member can apply a reverse force to the insulator toward the socket shell, which offsets the force applied by the plug on the insulator toward the plug, reducing the unidirectional force on the edge of the insulator, reducing the degree of warping and deformation of the edge of the insulator, and even avoiding the warping and deformation of the edge of the insulator. After reducing the degree of warping and deformation of the edge of the insulator, it is less likely for the plug and the socket to loosen, and the contact position between the plug contact and the socket contact remains unchanged, ensuring more stable signal and / or electrical transmission.

[0014] Further, the fixing assembly comprises at least two screws arranged along the axial direction of the rotating shaft, the screws are used to threadedly mount the insulator on the socket shell, the screws are arranged at the middle position between the two pulling structures in the interval arrangement direction, the pulling structures are the same in number as the screws and correspond to the screws in the radial direction of the rotating shaft. The pulling structures are arranged at the positions corresponding to the screws in the radial direction, and in use, the space on both sides of the screws on the insulator can be used to arrange the pulling structures, so that the limited space of the insulator is effectively utilized.

[0015] Further, the pulling structure comprises a barb arranged on one of the socket shell and the insulator, and further comprises a barb locking groove or a locking rod arranged on the other one of the socket shell and the insulator. The barb and the barb locking groove (or the locking rod) are used to cooperate as the pulling structure, so that the assembly is more convenient.

[0016] Further, the socket shell comprises a shell body and a supporting wall arranged in the shell body, the supporting wall is used to cooperate with the insulator to press-mount the rotating shaft, the supporting wall and the inner wall of the shell body are arranged in an interval to form an insertion channel for the barb, and the barb locking groove is arranged on the supporting wall. The insertion channel is formed by the interval arrangement between the supporting wall and the shell body, and the barb locking groove is arranged on the supporting wall, so that the structure is simpler, and the insertion channel is closer to the edge position of the insulator, the pulling force is closer to the edge of the insulator, and the pulling effect is better.

[0017] Further, a boss is arranged on the side surface of the insulator, and the boss is used to be mounted in an interference fit with the inner wall of the socket shell.

[0018] The technical scheme of the head seat assembly is as follows:

[0019] The plug comprises a plug shell, and a locking pin is arranged on the plug shell;

[0020] The socket comprises:

[0021] The socket shell;

[0022] The rotating shaft is provided with or is arranged with a hook groove, and the hook groove is used to cooperate with the locking pin to lock the plug and the socket;

[0023] The insulator is used to cooperate with the socket shell to limit the rotating shaft;

[0024] The fixing assembly is used to fix the insulator on the socket shell;

[0025] The fixing assembly comprises two pulling structures arranged in the radial direction of the rotating shaft, the interval arrangement direction of the two pulling structures is perpendicular to the plug-in and plug-out direction of the plug and the socket, and the pulling structures correspond to the corresponding side edges of the insulator;

[0026] The pulling structure includes one or at least two pulling members arranged axially along the rotating shaft at intervals. The pulling members are used to cooperate with the socket housing and the insulator to apply a pulling force toward the socket housing to the corresponding side edges of the insulator.

[0027] The beneficial effects of the present invention are as follows: After analysis, it was found that in the prior art, the reason for the damage to the insulator and the instability of signal and / or electrical transmission is that the end of the insulator is fixed by a single screw, and when the plug is pulled, the plug applies a force to the edges of the insulator on both sides through the locking pin and the rotating shaft, so that the force direction on the two sides of the insulator is opposite to the force direction in the middle, generating an overturning torque, causing the edges of the insulator to be easily damaged. In the present invention, there are two pulling structures arranged and located on both sides of the insulator. When in use, when the plug pulls the two sides of the insulator, the pulling member can apply a reverse force to the insulator toward the socket shell, which offsets the force applied by the plug on the insulator toward the plug, reducing the unidirectional force on the edge of the insulator, reducing the degree of warping and deformation of the edge of the insulator, and even avoiding the warping and deformation of the edge of the insulator. After reducing the degree of warping and deformation of the edge of the insulator, it is less likely for the plug and the socket to loosen, and the contact position between the plug contact and the socket contact remains unchanged, ensuring more stable signal and / or electrical transmission.

[0028] Furthermore, the fixing assembly includes at least two screws spaced axially along the rotating shaft, which threadably press-fit the insulator onto the socket housing. The screws are located midway between the spacing of the two pulling structures. The pulling members are equal in number to the screws and correspond radially to the screws along the rotating shaft. The pulling members are arranged at radially corresponding positions to the screws. During use, the space on either side of the screws on the insulator can be used to accommodate the pulling members, effectively utilizing the limited space on the insulator.

[0029] Furthermore, the pull member includes a barb provided on one of the socket housing and the insulator, and also includes a barb locking groove or a locking rod provided on the other of the socket housing and the insulator. The combination of the barb and the barb locking groove (or the locking rod) as the pull member makes assembly more convenient.

[0030] Furthermore, the socket housing includes a housing body and a support wall disposed within the housing body. The support wall cooperates with the insulator to press-fit the rotating shaft. The support wall and the inner wall of the housing body are spaced apart to form an insertion channel for the barb to be inserted. The barb locking groove is provided on the support wall. The insertion channel is formed by the spacing between the support wall and the housing body, and the barb locking groove is provided on the support wall. This simplifies the structure, and the insertion channel is closer to the edge of the insulator, so the pulling force is closer to the edge of the insulator, resulting in a better pulling effect.

[0031] Furthermore, a boss is provided on the side surface of the insulator, and the boss is used for interference fit installation with the inner wall of the socket housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional exploded view of a socket in the prior art;

[0033] Figure 2 This is a force analysis diagram of a plug and a socket in the prior art when they are plugged in and used;

[0034] Figure 3 This is a force analysis diagram of the socket in use in the prior art;

[0035] Figure 4 This is a schematic diagram of the overall assembly of a headstock assembly embodiment of the present invention;

[0036] Figure 5 A schematic diagram of a plug and a socket separated in an embodiment of a header assembly of the present invention;

[0037] Figure 6 This is a general appearance diagram of the socket in the embodiment of the header assembly of the present invention;

[0038] Figure 7 for Figure 6 Schematic diagram of the AA section;

[0039] Figure 8 A perspective view of a socket housing of a socket in an embodiment of a header assembly of the present invention;

[0040] Figure 9 A top view of a socket housing of a socket in an embodiment of a header assembly of the present invention;

[0041] Figure 10 for Figure 9 Schematic diagram of the middle BB section;

[0042] Figure 11 This is a schematic diagram of the assembly of the insulator and the barb in the socket in the embodiment of the header assembly of the present invention;

[0043] Figure 12 It is a schematic diagram of the assembly of the insulator and the socket housing of the socket in an embodiment of the header assembly of the present invention;

[0044] Explanation of the reference numerals: 100-plug; 200-socket; 1-socket housing; 2-socket contact; 3-transmission gear; 4-handle; 5-rotating rod; 6-locking hook; 7-insulator; 8-screw; 9-rotating shaft; 10-camshaft; 11-plug housing; 12-locking pin; 300-socket; 31-housing body; 32-supporting wall; 33-insulator; 34-barb; 35-locking hook; 36-rotating shaft; 37-screw; 38-screw through-hole; 39-socket housing; 310-threaded hole; 311-insertion channel; 312-barb locking groove; 313-socket contact; 314-boss.

[0045] In the accompanying figure, F n It represents the force exerted on the lock hook during locking in the prior art, F n ' represents the force exerted on the lock pin during locking in the prior art; F x F represents the force on the shaft after the plug is pulled in the prior art; x ' represents the tightening force of the screw on the insulator in the prior art; M represents the torque applied to the edge of the insulator; F1 represents the force applied to the insulator after the plug is pulled in the present invention; F2 represents the pulling force provided by the plug housing to the insulator after the plug is pulled in the present invention. DETAILED DESCRIPTION

[0046] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0047] like Figure 2 and Figure 3 As shown, firstly, the stress condition of the plug 100 and the socket 200 after being plugged in in the prior art is analyzed. Figure 2 As shown, after the plug housing 11 moves toward the socket 200 with the locking pin 12, the rotating shaft 9 drives the locking hook 6 to rotate, and the hook groove in the locking hook 6 cooperates with the locking pin 12 to achieve the locking of the plug 100 and the socket 200. After locking, the locking pin 12 is subjected to the force F provided by the locking hook 6 toward the plug 100. n The lock hook 6 is subjected to the reverse force F provided by the lock pin 12 towards the socket 200. n ´.

[0048] When in use, the plug 100 is usually connected to a probe, and the socket 200 is usually connected to a host. The probe is held by a person for operation. At this time, it is inevitable that the probe will exert a pulling force on the plug 100. After the plug 100 is pulled, the force will be transmitted to the lock pin 12, and the lock pin 12 will be transmitted to the lock hook 6. The lock hook 6 is a rotation-proof sleeve on the shaft 9. The shaft 9 will be subjected to the force F x The shaft 9 is pressed on the socket housing 1 by the insulator 7, so that the two edges of the insulator 7 are subjected to F x As can be seen from the description in the background art, in the prior art, the insulator 7 is fastened to the socket housing 1 by the middle screw 8, and the fastening force exerted by the screw 8 on the insulator 7 is F x', it can be seen that during use, when the plug 100 is pulled, the insulator 7 will be subjected to a torque M. After prolonged use, the two edges of the insulator 7 will be significantly deformed. The deformation of the insulator 7 will prevent the shaft 9 from being tightened, which can easily lead to a loose fit between the plug and the socket. In addition, after the plug and the socket are loose, the plug contacts on the plug will actually move with the plug, causing the contact points between the plug contacts and the socket contacts to change, which can easily lead to unstable signal and / or electrical transmission. After prolonged use, the insulator will also be damaged, making the header assembly unusable and shortening the mechanical life of the product.

[0049] The socket and header assembly of the present invention are improvements made to the above-mentioned problems.

[0050] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0052] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0053] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0054] Specific embodiments of the headstock assembly of the present invention:

[0055] like Figures 4 to 12 As shown, the header assembly includes a plug 400 and a socket 300, wherein the structure of the plug 400 is consistent with that in the prior art, and the plug 400 includes a plug housing and a plug contact 41. The socket 300 includes a socket housing 39, wherein Figure 7 and Figure 8 As shown, the socket housing 39 includes a housing body 31 and a supporting wall 32. The housing body 31 is a box-shaped structure. The supporting wall 32 is integrally formed with the housing body 31. Two supporting walls 32 are arranged at intervals along the length direction of the housing body 31. The structure of the supporting wall 32 is as follows: Figure 8 、 Figure 9 and Figure 10 As shown, the support wall 32 has two arc-shaped grooves for receiving the rotating shaft 36 and limiting the rotating shaft 36. The two arc-shaped grooves are arranged at intervals along the radial direction of the rotating shaft 36, and a threaded hole 310 is opened between the two.

[0056] like Figure 5 and Figure 6 As shown, the socket 300 further includes a socket contact 313 arranged in the socket housing 39 , the specific structure of which is consistent with that in the prior art and will not be described in detail herein.

[0057] Socket 300 also includes a shaft assembly capable of driving the socket contacts 313 to deflect and locking the socket 300 to the plug. The shaft assembly is a conventional structure. Specifically, the shaft assembly includes two parallel shafts 36, which are meshed with gears for transmission. A camshaft is mounted on the exterior of the shafts 36 for fixed rotation. The camshaft, when rotated, drives the socket contacts 313 to deflect. A locking hook 35 is also mounted on the exterior of the shafts 36 for fixed rotation. The hook 35 has a hook groove that engages with a locking pin on the plug to lock the plug and socket.

[0058] like Figure 7 and Figure 11 As shown, socket 300 also includes an insulator 33. The overall structure of insulator 33 is consistent with that described in the prior art and will not be further described here. Two arcuate grooves are formed at one end of insulator 33 to engage with socket housing 39 and thereby position shaft 36. A screw hole 38 is provided midway between the two grooves to allow screw 37 to pass through.

[0059] During assembly, after placing the shaft assembly on the support wall 32 of the socket housing 39, press the insulator 33 onto the support wall 32, and then use the screw 37 to pass through the screw hole 38 and the threaded hole 310 to fix the insulator 33 on the socket housing 39 to limit the shaft 36.

[0060] In the present invention, in order to reduce the degree of warping of the edge of the insulator 33 or even to avoid the warping of the edge of the insulator 33, thereby affecting the stability of signal and / or electrical transmission and causing looseness between the plug and the socket. Figure 11 As shown, four barbs 34 are provided on the side surface of the insulator 33 facing the socket housing 39. The barbs 34 are integrally formed on the side surface of the insulator 33, and the barbs 34 are cantilevered to a certain length, so that the barbs 34 can swing elastically. Figure 11 As shown, the end of the barb 34 has a hook head with an inclined surface, which facilitates the barb 34 to swing automatically after contacting the support wall 32 and to extend into the barb locking groove 312 when swinging back.

[0061] like Figure 11 As shown, the four barbs 34 are arranged in a rectangular shape, and the positions of the barbs 34 correspond to the positions of the screw holes 38. Two barbs 34 are arranged on both sides of the screw holes 38. The two barbs 34 are located in the radial direction of the screw holes 38 and are arranged in a straight line between the screw holes 38 and the screws 37 that are subsequently installed. Figure 11 It can be seen that the barbs 34 are located at the edge of the insulator 33. The two barbs 34 on the same side edge can form a pulling structure to pull the edge on that side to prevent warping and deformation.

[0062] In order to cooperate with the barb 34, in this embodiment, when the shell body 31 and the supporting wall 32 are integrally formed, an insertion channel 311 is left between the two for the insertion of the barb 34. At the same time, a barb locking groove 312 is opened on the side of the supporting wall 32 facing the shell body 31 to cooperate with the hook head of the barb 34.

[0063] When in use, the barb 34 is inserted into the insertion channel 311 together with the insulator 33, and is snapped into the barb locking groove 312 after elastic recovery. Figure 7 As shown by Figure 7 It can be seen that in actual use, when the plug is pulled, a force F1 toward the plug will still be applied to the edge of the insulator 33 through the locking pin, the locking hook 35, and the rotating shaft 36. At this time, due to the cooperation between the barb 34 and the barb locking groove 312, the insulator 33 will drive the barb 34 to move toward the direction of the plug after being pulled, and the barb locking groove 312 applies a reverse force F2 to the barb 34, and F2 is used to offset the force applied to the insulator 33 toward the plug, thereby avoiding the edge of the insulator 33 being easily deformed due to excessive unidirectional force.

[0064] In this embodiment, in order to ensure that the insulator 33 can be stably supported in the socket housing 39, Figure 11 and Figure 12As shown, a boss 314 is provided on the outside of the insulator 33 , and the boss 314 can be interference-fitted with the inner wall of the socket housing 39 to straighten and prevent the insulator 33 from deflecting.

[0065] In this embodiment, the support wall 32 and the housing body 31 are spaced apart to form an insertion channel 311, and a barb locking groove 312 is provided on the support wall 32. In other embodiments, the barb locking groove and the insertion channel can be provided in the following manners, for example, by providing the insertion channel on the inner wall of the support wall 32 and forming the barb locking groove on the wall surface. Alternatively, the barb locking groove can be provided on the housing body. Specifically, the wall thickness of the housing body can be increased and the barb locking groove can be provided on the inner wall of the housing body. Correspondingly, the direction of the hook head in the lock hook needs to be reversed.

[0066] In this embodiment, the barb 34 is arranged on the insulator, and the barb locking groove 312 is provided on the socket housing. The barb locking groove 312 cooperates with the barb 34 to apply a reaction force to the insulator. Based on this concept, in other embodiments, the barb can be provided on the socket housing, and the barb locking groove can be provided on the insulator. Specifically, the barb is arranged on the supporting wall, the barb extends toward the insulator, and a groove is provided at one end of the insulator facing the socket housing to form an insertion channel, and a barb locking groove is opened on the groove wall of the groove. During installation, the insulator is placed on the supporting wall, and the barb is locked into the barb locking groove.

[0067] In this embodiment, the barb locking groove cooperates with the barb, and in fact, the barb in the barb locking groove cooperates with the barb of the barb locking groove, relying on the blocking relationship between the barb and the groove wall. Based on this principle, as long as a structure of a blocking surface that cooperates with the barb can be provided, it can cooperate with the barb to apply a reaction force to the insulator. In other embodiments, the outer peripheral surface of the locking rod can be used to provide the blocking surface.

[0068] In this embodiment, the barbs correspond radially to the screws, facilitating installation and utilizing the space on either side of the screw holes in the insulator. In this embodiment, the screws 37 still primarily secure the insulator to the socket housing, while the barbs serve only to provide a counterforce when the insulator is subjected to the pull of the plug, thereby reducing deformation. The barbs and corresponding barb locking grooves or locking rods form a pulling member that pulls the insulator. There are four pulling members, and the two pulling members located on the same side of the screw 37 form a pulling structure, which pulls the two side edges of the insulator. Together, the two pulling structures and the two screws form a fixing assembly.

[0069] In other embodiments, the pulling member can be fastened with screws. Specifically, four screw holes are provided on the insulator, and threaded holes are provided on the support wall. The edges of the insulator are fixed to the support wall with four screws. After fastening with screws, the screws at the edges can pull the insulator, thereby forming the pulling member. It should be noted that if screws are used as the pulling member, the screws in the middle of the insulator can be eliminated, and only the four screws at the edges are used for fastening. In this case, the four screws form a fixing assembly.

[0070] In this embodiment, there are two screws in the middle of the insulator. In other embodiments, if the socket contact is divided into two places along the middle position of the rotating shaft, then another screw can be added in the middle position of the insulator. After adding the screw, the number of pulling parts increases along with the screw.

[0071] In this embodiment, the position and number of the pulling members change with the screws. In other embodiments, the pulling members can be staggered with the screws in the radial direction. At the same time, if it is only to prevent the edge of the insulator from being pulled and deformed, then only one pulling member can be set at the middle position.

[0072] In this embodiment, a locking hook is mounted on the rotating shaft, and a hook groove is formed on the locking hook. In other embodiments, the radial dimension of the rotating shaft can be increased, and the hook groove can be directly formed on the rotating shaft. In this embodiment, the two rotating shafts are meshed and driven by transmission gears to achieve synchronous rotation. In other embodiments, the two rotating shafts can be synchronized by using the method of Chinese Utility Model Patent No. CN201708375U.

[0073] In the specific embodiment of the socket of the present invention, the structure of the socket is consistent with that in the above embodiment and will not be described in detail here.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A socket, comprising: socket housing; a socket contact disposed in the socket housing; The rotating shafts are arranged in parallel, and the external rotation stop sleeves of the rotating shafts are provided with camshafts. After the camshafts rotate, they drive the socket contacts to deviate so that the socket contacts and the plug contacts are in contact and conductive after the socket and the plug are plugged in. The rotating shafts are installed with or have hook grooves, which are used to cooperate with the locking pins on the plug to lock the plug and the socket. The insulator cooperates with the socket housing to limit the rotating shafts. The socket housing includes a housing body and a supporting wall arranged in the housing body. The supporting wall is provided with two arc-shaped grooves arranged along the spacing direction of the two rotating shafts. The same end of the insulator is provided with two arc-shaped grooves for respectively receiving the two rotating shafts to position the rotating shafts. A fixing assembly comprising at least two screws spaced apart along the axial direction of a rotating shaft for fixing an insulator to a socket housing; the screws are located between the two rotating shafts and press-fit the insulator onto the socket housing so that the supporting wall cooperates with the insulator to press-fit the rotating shaft; and the fixing assembly is characterized in that: The fixing assembly also includes a pulling structure, which is arranged in two corresponding directions along the radial direction of the rotating shaft. The spacing of the two pulling structures is perpendicular to the plugging and unplugging direction of the plug and the socket. The two pulling structures are located on opposite sides of the two rotating shafts, and the screw is located in the middle of the spacing of the two pulling structures. The pulling structures correspond to the corresponding side edges of the insulator. The pulling structure includes one or at least two pulling members arranged axially along the rotating shaft. The pulling members are used to cooperate with the socket housing and the insulator to apply a pulling force toward the corresponding side edge of the insulator toward the socket housing to prevent the edge of the insulator from warping.

2. The socket according to claim 1, wherein: The pulling members are the same in number as the screws and correspond to the screws along the radial direction of the rotating shaft.

3. The socket according to claim 1 or 2, characterized in that: The pulling member includes a barb arranged on one of the socket housing and the insulator, and also includes a barb locking groove or a locking rod arranged on the other of the socket housing and the insulator.

4. The socket according to claim 3, wherein: The supporting wall and the inner wall of the shell body are arranged at intervals to form an insertion channel for the barb to be inserted. The supporting wall is provided with the barb locking groove, and the barb is integrally formed on the side surface of the insulator.

5. The socket according to claim 1 or 2, characterized in that: A boss is provided on the side surface of the insulator, and the boss is used for interference fitting with the inner wall of the socket housing.

6. A headstock assembly comprising: The plug comprises a plug housing and a plug contact, wherein the plug housing is provided with a locking pin; Socket, including: socket housing; a socket contact disposed in the socket housing; The rotating shafts are arranged in parallel with two of them. The rotating shafts are provided with a camshaft on the outer anti-rotation sleeve. The camshaft drives the socket contacts to deflect after rotation so that the socket contacts and the plug contacts are in contact and conductive after the socket and the plug are plugged in. The rotating shafts are provided with or have hook grooves, which are used to cooperate with the locking pin to lock the plug and the socket. The insulator cooperates with the socket housing to limit the rotation shaft; the socket housing includes a housing body and a support wall arranged in the housing body, the support wall is provided with two arc-shaped grooves arranged along the spacing direction of the two rotation shafts, and the same end of the insulator is provided with two corresponding arc-shaped grooves for respectively receiving the two rotation shafts to position the rotation shafts; A fixing assembly includes at least two screws spaced apart along the axial direction of the rotating shaft for fixing the insulator to the socket housing; the screws are located between the two rotating shafts and press the insulator thread onto the socket housing so that the supporting wall cooperates with the insulator to press the rotating shaft; Its characteristics are: The fixing assembly also includes a pulling structure, which is arranged in two corresponding directions along the radial direction of the rotating shaft. The spacing of the two pulling structures is perpendicular to the plugging and unplugging direction of the plug and the socket. The two pulling structures are located on opposite sides of the two rotating shafts, and the screw is located in the middle of the spacing of the two pulling structures. The pulling structures correspond to the corresponding side edges of the insulator. The pulling structure includes one or at least two pulling members arranged axially along the rotating shaft. The pulling members are used to cooperate with the socket housing and the insulator to apply a pulling force toward the corresponding side edge of the insulator toward the socket housing to prevent the edge of the insulator from warping.

7. The headstock assembly according to claim 6, wherein: The pulling members are the same in number as the screws and correspond to the screws along the radial direction of the rotating shaft.

8. The headstock assembly according to claim 6 or 7, characterized in that: The pulling member includes a barb arranged on one of the socket housing and the insulator, and also includes a barb locking groove or a locking rod arranged on the other of the socket housing and the insulator.

9. The headstock assembly according to claim 8, wherein: The supporting wall and the inner wall of the shell body are arranged at intervals to form an insertion channel for the barb to be inserted. The supporting wall is provided with the barb locking groove, and the barb is integrally formed on the side surface of the insulator.

10. The headstock assembly according to claim 6 or 7, characterized in that: A boss is provided on the side surface of the insulator, and the boss is used for interference fitting with the inner wall of the socket housing.

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