WO2020015106A1 - 一种自锁插头 - Google Patents

一种自锁插头 Download PDF

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Publication number
WO2020015106A1
WO2020015106A1 PCT/CN2018/105344 CN2018105344W WO2020015106A1 WO 2020015106 A1 WO2020015106 A1 WO 2020015106A1 CN 2018105344 W CN2018105344 W CN 2018105344W WO 2020015106 A1 WO2020015106 A1 WO 2020015106A1
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WO
WIPO (PCT)
Prior art keywords
main body
self
groove
connecting rod
locking
Prior art date
Application number
PCT/CN2018/105344
Other languages
English (en)
French (fr)
Inventor
林海青
余强
张悦
Original Assignee
北京突破电气有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京突破电气有限公司 filed Critical 北京突破电气有限公司
Publication of WO2020015106A1 publication Critical patent/WO2020015106A1/zh
Priority to US16/920,447 priority Critical patent/US11349258B2/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H01R13/6392—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap for extension cord
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6275—Latching arms not integral with the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • H01R24/22—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable with additional earth or shield contacts

Definitions

  • the invention belongs to the technical field of electrical devices, and particularly relates to a self-locking plug.
  • the recently introduced PCU type is characterized by an additional metal fin or handle near the joint for easy removal from the server. Due to the compact design of the device, the release tabs provided on many types of lockable electrical connectors impede insertion, while in other cases, the limited space envelope near the connector prevents when it may be required to remove the connector Reaching the release control.
  • the reduction of the space envelope around the connector is limited to the area extending from the device by a distance not greater than the length of the connector. Accordingly, it is possible to overcome the problems caused by the reduced space by providing a joint having a longer length body. In this way, for example, at a position where any metal flap or handle is swept away, the release control may be further spaced from the interface end of the joint.
  • this solution has the disadvantage that it essentially eliminates the advantages of more compactly designed devices seeking to achieve a reduction in space. This is because more space will be required between the device and the front wall or other surface on which the device is located to accommodate the longer length of the connector.
  • Cigar patent CN202949090U discloses a locking electrical connector including a main body, the main body having a first end region, the first end region including one or more electrical contacts, the electrical contacts being used with complementary connector assemblies In contact, the main body also has a second end region facing the first end region, from which the elastic guide can extend through the protective guide, and the main body of the joint includes a locking mechanism so that when in use The joint can be selectively releasably secured to the complementary joint assembly, and the joint includes a release control operable to act on the locking mechanism and allow the joint to be released from the complementary joint assembly, Wherein, when considered in the length direction of the joint, the release control is operable at a position of the first end of the joint farther than the second end.
  • the above patented product avoids the problem of interference with other parts to a certain extent, it still has the following disadvantages: the hardness of the locking piece is large, it is easy to scratch the pin, and the copper scraps are dropped. Therefore, it is recommended that users lock the lock first. Unlock the clip, insert the plug, and release the clip. This will prevent scratching of the latch.
  • the existing pull ring product form when the plug is inserted, simultaneously operating the pull ring to release the locking piece is not in accordance with operating habits and is relatively inconvenient.
  • the purpose of the present invention is to overcome the shortcomings of the prior art and provide a self-locking plug.
  • the self-locking plug conforms to the operating habits and effectively reduces the wear of the latch by the locking piece.
  • a self-locking plug includes a main body, an insert sleeve seat provided in the main body for positioning the insert sleeve, at least one locking piece, and a reciprocating movement driven in an axial direction of the main body to realize the locking piece.
  • the two keys are symmetrically arranged, and the connecting rod and the two keys are connected and driven simultaneously.
  • a sliding groove is provided on the connecting rod, a driving pin is correspondingly provided on the driving portion, or a driving pin is correspondingly provided on the connecting rod, and a sliding groove is correspondingly provided on the driving portion.
  • the driving pin is a convex pin provided on both sides of the tail end of the connecting rod, a rear end surface of the convex pin is formed with a circular arc lead angle, and the sliding groove is a rectangular groove.
  • the main body includes a bottom case and an upper cover that are fixedly connected, the bottom case includes a bottom plate, a head cavity integrally disposed at the front end of the bottom plate, and a cable outlet slot disposed at the bottom end of the bottom plate, and the front end of the socket is deep into the A positioning table in the head cavity and the rear end of the head cavity is limited.
  • a guide groove for positioning and guiding the connecting rod is formed at the bottom of the socket, and a spring positioning platform is provided in the guide groove, and the connecting rod is provided for positioning the return spring and Spring slot with open rear end.
  • the key is a groove structure in which the side of the main body is embedded.
  • the chute or driving pin is correspondingly provided on the inner side wall of the driving part.
  • the main body is formed corresponding to the driving part and the linkage part. Avoid dents.
  • the bottom part of the bottom plate is formed with a groove with an open end, and the tail end of the connecting rod protrudes from the main body and is embedded in the groove.
  • a convex guide portion matching the groove is formed on the connecting rod, and the guide portion is flush with or lower than the bottom surface of the bottom plate.
  • At least a terminal portion of the groove is a T-shaped groove, and the connecting rod is formed with a guide fin corresponding to the T-shaped groove.
  • the pressing of the key is converted into the driving of the locking piece through the connecting rod.
  • the key itself is a lever-type structure, and the action of the pressing part to rotate around the shaft when the force is applied and the insertion of the self-locking plug of the present invention Or the pull-out action is well integrated, the action of pinching the plug and the action of inserting are in one go, which conforms to the operating habits, largely avoids the scratch of the pin, improves the safety and life of the use, and the key movement is small, and the surrounding parts Small interference, suitable for any small operating space.
  • FIG. 1 is a schematic diagram of a shaft side structure of the self-locking plug of the present invention
  • FIG. 2 is a schematic diagram of the self-locking plug of the present invention from another perspective
  • FIG. 3 is a schematic exploded structure diagram of the self-locking plug of the present invention.
  • FIG. 4 is a schematic cross-sectional structure diagram of a self-locking plug of the present invention.
  • FIG. 5 is a schematic structural diagram of a bottom case of an assembly link
  • FIG. 6 is a schematic diagram showing a fitting relationship between a link and a button
  • Figure 7 shows the structure of a free-state self-locking plug
  • FIG. 8 is a schematic view showing a released structure of the locking piece when inserted
  • FIG. 9 is a schematic diagram showing a locking structure of a locking piece.
  • FIG. 10 is a schematic diagram showing the structure of the socket.
  • FIG. 11 is a schematic structural diagram of an upper cover
  • FIG. 12 is a schematic structural diagram of a bottom case.
  • a self-locking plug includes a main body 1, an insert sleeve seat 2, at least one insert sleeve 20 fixedly disposed thereon, at least one locking piece 3, and a main body driven along the main body.
  • the driving part is drivingly connected with the connecting rod 4 to realize the axial reciprocating movement.
  • the plug insertion end is used as the head end or the front end
  • the connection end with the power cord is used as the tail end or the back end. This definition is only for convenience of description and does not constitute any limitation on the protection scope.
  • three plug sockets are generally provided in the main body, such as the specifications required by C14 and C13 specifications, and a locking piece is correspondingly provided.
  • the present invention can also be applied to one socket or two sockets, or In the case of more insert sleeves, and for the locking piece, two or more can be simultaneously driven by the keys through the connecting rod, which can be easily realized based on the design idea of the present invention, such as three insert sleeves and The fit of one lock piece, the fit of three insert sleeves and two lock pieces, the fit of two insert sleeves and one lock piece, the fit of two insert sleeves and two lock pieces, one insert sleeve and one The fit of the locking piece.
  • the present invention is exemplarily described with the cooperation of three insert sleeves and one locking piece.
  • the position and function of the locking piece are similar to the prior art, and will not be described in detail here.
  • the rotary pressing of the button is converted into the driving of the locking piece through the connecting rod.
  • the key itself is a lever-type structure, and the action of the pressing part to rotate around the shaft when the pressing part is stressed and the self-locking plug of the present invention
  • the insertion or extraction action is well integrated. During the action, you only need to hold the pressing part and apply force to ensure that the locking piece is in the released state when it is inserted or pulled out, avoiding the wear of the locking piece on the pin. , Improve the use safety and life, moreover, the button movement is small, and interference with surrounding parts is small, suitable for any small operating space.
  • a reset spring is provided between the key and the main body so that the connecting rod is extended forward to maintain the locking piece in a locked state, that is, the locking piece is biased toward the locking direction.
  • a manner of providing a reset spring between the link and the main body or between the link and the insert sleeve can take various forms such as torsion springs.
  • a reset spring can be set at the same time between the button and the main body and between the connecting rod and the main body or the insert sleeve to ensure the effectiveness of the locking state of the locking piece.
  • the main body 1 includes a bottom case 11 and an upper cover 12 that are fixedly connected.
  • the bottom case 11 includes a bottom plate 13, a head cavity 10 integrally provided at the front end of the bottom plate 13, and a cable outlet slot 14 at the tail end.
  • the front end of the socket seat penetrates into the head cavity and the rear end is limited by the positioning table 15 provided on the bottom plate.
  • a plurality of clamping tables 19 are provided on the bottom surface of the socket cover to correspond to the bottom plate.
  • the card hole fits securely.
  • the front end of the upper cover 12 is provided with a stopper 121 that can be matchedly inserted into the head cavity.
  • the head cavity is provided with a guide plate 101.
  • the stopper is provided with a corresponding guide gap. .
  • stopper design ensures the insertion depth, achieves a stable connection and sealing effect, and the matching setting of the guide notch and the guide plate enhances the connection strength, and the setting of the guide plate also enhances the strength of the upper cavity of the bottom shell.
  • a guide groove 21 for positioning and guiding the connecting rod is formed at the bottom of the socket, and a spring positioning table 22 is provided in the guide groove.
  • the connecting rod 4 is provided for positioning the The spring insertion groove 41 of the return spring 40 and the rear end is opened, and the spring insertion groove and the guide groove constitute the accommodating space of the reset spring.
  • a locking piece positioning groove is formed at the front end of the insert sleeve seat, and the locking piece positioning groove and the locking piece positioning table in the head cavity cooperate to complete the positioning of the upper end of the locking piece.
  • the front end of the connecting rod is provided with a slot for positioning and interlocking the lower end of the locking piece, and the length direction of the locking hole provided on the locking piece is perpendicular to the connecting rod, that is, locking on the non-contact side of the bolt is achieved.
  • the bottom case extends in the direction of the entire plug, and the auxiliary connection of the upper cover forms a closed cavity, which is strong and easy to install.
  • the head cavity and rear positioning table are used for easy assembly, and the socket guides the link.
  • the arrangement of the spring and the return spring improves the space utilization rate, and the spring is confined in a relatively closed cavity, its stability is improved, and the overall insulation effect is high.
  • the two keys are symmetrically arranged, and the connecting rod is preferably connected at the same time with the two keys at the tail.
  • the synchronous action of the two keys exerts an even force on the connecting rod to ensure its smooth movement in the axial direction and realize the smooth switching of the state of the locking plate.
  • the bottom case and the upper cover are respectively correspondingly formed with a rotation hole 19 at the tail end, and two ends of the rotation shaft of the key are matchedly inserted into the rotation hole and clamped and positioned. It adopts clamp-type positioning, the keys will not fall off, and the assembly is simple.
  • the driving part is provided with a driving pin, and a sliding groove is provided at the tail of the connecting rod, or the driving portion is provided with a sliding groove and the tail of the connecting rod is provided.
  • a driving pin is provided.
  • the sliding groove is of a circular arc design.
  • the key 5 is a groove structure in which a side portion of the main body is embedded, and the sliding groove or the driving pin is correspondingly disposed on an inner side wall of the driving portion.
  • the main body is formed with an avoidance depression corresponding to the driving part and the linkage part. That is, the longitudinal section of the key is a U-shaped or C-shaped structure.
  • a corresponding card-embedded structure is provided on the main body, and the movement of the key is avoided, and effective positioning and guidance are formed.
  • a snap-fit connection structure can also be provided between the driving part of the key and the pressing part and the main body, that is, a buckling mechanism, which can maintain the locking of the position state, so in some cases, the pressing part and the pressing part can be used first.
  • the locking of the main body keeps the plug in the release state of the locking piece, and then switches to the locking state of the locking piece after the insertion is completed. It can be completely inserted without pressing the pressing part when inserted.
  • the state of the button can be switched to further meet the installation in harsh environments.
  • the double locking of the lock spring and the button and the main body further improves the locking effect.
  • the contact surface of the pressing part is provided with multiple convex edges or bumps to increase friction.
  • the middle part of the key is axially connected to the main body, the driving part and the pressing part are arranged at an included angle, and the included angle is preferably a right angle, of course, it can also be any other angle, or the driving part and pressing Design in a straight line.
  • the two keys are symmetrically disposed at the tail portion of the main body and are located on both sides in the width direction.
  • a rectangular groove 51 is formed on an inner side wall of the driving portion, and a tail portion of the link
  • a rectangular convex pin 42 that can be inserted into the rectangular groove is formed perpendicularly to the rear end of the convex pin, and a circular arc angle is formed.
  • the circular arc angle can realize the rectangular groove to capture the convex pin. The overall linkage effect is guaranteed.
  • a similar dead point design is formed. In the free state, the convex pin is completely in the rectangular groove. At this time, the locking piece maintains the maximum tilting state.
  • a groove 18 is formed at the rear end of the bottom plate and the front end and the rear end are respectively opened, and a protrusion matching the groove is formed on the connecting rod.
  • Type guide 43 such as an inner circular guide, which is flush with or lower than the bottom surface of the bottom plate, so that the bottom surface of the plug is a flat design, which meets the requirements for plugging in different occasions and reduces the number of components Interference.
  • the head section of the connecting rod extends into the inner cavity of the main body and is linked with the locking piece.
  • the rear end of the connecting rod adopts an exposed design and is guided by a groove, and the overall volume and overall appearance remain unchanged. Can be applied to a variety of existing applications.
  • At least the end portion of the groove is a T-shaped groove, and the T-shaped groove of the connecting rod is correspondingly formed with a guide fin 44.
  • the cooperation of the laterally extending guide fins at the tail of the link with the T-slot prevents the tail of the link from tilting and ensures that the key and the link are effectively and smoothly driven.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

一种自锁插头，包括主体(1)，设置在主体(1)内用以定位插套(20)的插套座(2)，至少一个锁紧片(3)，以及受驱动沿所述的主体(1)的轴向往复移动以实现所述的锁紧片(3)在释放和锁紧状态间切换的连杆(4)，以及设置在所述的主体(1)上的杠杆式按键(5)，所述的按键(5)一端为按压部另一端为与所述的连杆(4)传动连接以实现所述的轴向往复移动的驱动部。该自锁插头，对按键(5)的按压通过连杆(4)转化为对锁紧片(3)的驱动，按键(5)本身为杠杆式结构，其按压部受力时绕轴转动的动作与自锁插头的插入或拔出动作很好的融合，捏紧插头的动作和插入的动作一气呵成，符合操作习惯，很大程度避免了插销的划伤，提高使用安全性和寿命，而且，按键(5)动作小，与周围部件干涉小，适于任何小操作空间。

Description

一种自锁插头 技术领域
本发明属于电器器件技术领域，具体涉及一种自锁插头。
背景技术
一些现有技术的接头，不管是插销还是插孔的形式，已经设计用于减小接头从配对的插孔或插销上移除或不小心掉落的容易性。计算机设备中通常采用的已知的方案是在接头的任一侧上提供螺栓或夹子，以使接头保持附接到设备上。然而，将接头螺纹连接或夹持到设备上是费力的，在许多情形下由于空间限制而变得困难。
为解决该问题，已知的是，为接头提供锁定机构，但是用户需要操作以将接头从配对的接头组件上分开。熟知并成功的锁定接头的例子描述在英国专利GB2383202中。
然而，尤其是对于计算机和类似这样的电器设备，对结构紧凑度的持续驱动导致传统上包围可移除接头的空间包面本质上的缩小。
这样，例如，最近引入的PCU型的特征在于靠近接头位置的额外的金属翼片或把手，用于容易地从服务器移除。由于设备设计的紧凑型，提供在许多类型的可锁定电气接头上的松开翼片阻碍了插入，而在其他情形下，靠近接头的有限的空间包面阻碍了在可能要求移除接头的时候够及所述松开控制。
典型地，当在连接到电气设备配对的插销或插孔的情形下时，在接头周围的空间包面的减小限制于从设备延伸出的不大于接头长度的距离的区域。相应地，可能的是，通过提供具有更长长度体的接头以克服减小的空间所引起的问题。这样，例如在扫除任何金属翼片或把手的位置处，松开控制可以进一步从接头的接口端间隔开。然而，该方案具有这样的缺点，其基本上取消了更紧凑设计的设备寻求实现的空间减小的优点。这是因为在设备和该设备所处的前面的壁或其他表面之间将需要更大的空间，以容纳更长长度的接头。
中国专利CN 202949090 U公开了一种锁定电气接头，包括主体，该主体具有第一端区域，该第一端区域包括一个或多个电气触点，所述电气触点用于与互补的接头组件接触，该主体还具有对着所述第一端区域的第二端区域，从其依靠着保护引导， 弹性导体能够通过该保护引导延伸，该接头的所述主体包括锁定机构，从而在使用时，所述接头能够可选择性松开地稳固到互补的接头组件上，且该接头包括松开控制，其可操作以作用于锁定机构上并允许将该接头从互补的接头组件上松开，其中，当在该接头的长度方向上考虑时，所述松开控制在比所述第二端更远的该接头的第一端的位置处可操作。
虽然上述专利产品在一定程度上避免了与其他部件干涉的问题，但是，其仍具有以下不足：锁紧片的硬度较大，容易将插销划伤，掉落铜屑，因此推荐用户先将锁紧片解锁，再将插头插入，然后释放锁紧片。这样即可避免插销的划伤。但是现有的拉环产品形式，在插入插头的时候，同时操作拉环释放锁紧片不符合操作习惯，比较不方便。
发明内容
本发明的目的在于克服现有技术的不足，提供一种自锁插头，该自锁插头符合操作习惯，有效减少锁紧片对插销的磨损。
本发明是通过以下技术方案实现的：
一种自锁插头，包括主体，设置在主体内用以定位插套的插套座，至少一个锁紧片，以及受驱动沿所述的主体的轴向往复移动以实现所述的锁紧片在释放和锁紧状态间切换的连杆，以及设置在所述的主体上的杠杆式按键，所述的按键一端为按压部另一端为与所述的连杆传动连接以实现所述的轴向往复移动的驱动部。
所述的按键为对称设置的两个，所述的连杆与两个按键同时传动连接。
在所述的连杆上设置有滑槽，所述的驱动部对应设置有驱动销，或者，所述的连杆上对应设置有驱动销，所述的驱动部对应设置有滑槽。
驱动销为设置在所述的连杆尾端两侧的凸销，所述的凸销的尾端面形成有圆弧导角，所述的滑槽为矩形槽。
所述的主体包括固定连接的底壳和上盖，所述的底壳包括底板，一体设置在底板前端的头腔以及设置于底板尾端的出线槽，所述的插套座前端深入所述的头腔内且后端被设置在所述的底板上的定位台限位。
所述的插套座的底部形成用以将所述的连杆定位导向的导槽，所述的导槽内设置有弹簧定位台，所述的连杆设置有用以定位所述的复位弹簧且后端开口的弹簧嵌槽。
所述的按键为可将主体侧部嵌含其中的槽式结构，所述的滑槽或驱动销对应设置在驱动部的内侧壁上，所述的主体上与驱动部和联动部对应形成有避让凹陷。
所述的底板上尾部形成有尾端开口的凹槽，所述的连杆尾端自主体内伸出并被嵌含在所述的凹槽中。
所述的连杆上形成有与所述的凹槽匹配的凸起式导向部，所述的导向部齐平于或低于底板底面。
所述的凹槽至少末端部分为T型槽，所述的连杆与所述的T型槽对应的形成有导向翅片。
本发明的优点和有益效果为：
本发明的自锁插头，对按键的按压通过连杆转化为对锁紧片的驱动，按键本身为杠杆式结构，其按压部受力时绕轴转动的动作与本发明的自锁插头的插入或拔出动作很好的融合，捏紧插头的动作和插入的动作一气呵成，符合操作习惯，很大程度避免了插销的划伤，提高使用安全性和寿命，而且，按键动作小，与周围部件干涉小，适于任何小操作空间。
附图说明
图1所示为本发明自锁插头的轴侧结构示意图；
图2所示为本发明自锁插头的另一视角示意图；
图3所示为本发明的自锁插头的分解结构示意图；
图4所示为本发明的自锁插头截面结构示意图；
图5所示为装配连杆的底壳结构示意图；
图6所示为连杆及按键配合关系示意图；
图7所示为自由态自锁插头结构示意图；
图8所示为插入时锁紧片释放态结构示意图；
图9所示为锁紧片锁紧态结构示意图。
图10所示为插套座结构示意图。
图11为上盖的结构示意图；
图12为底壳的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面结合附图1-12和具体实施例进一步说明本发明的技术方案。
实施例1
如图所示，一种自锁插头，包括主体1、设置在主体内且其上固定设置有至少一个插套20的插套座2、至少一个锁紧片3、受驱动沿所述的主体的轴向往复移动以实现所述的锁紧片在释放和锁紧状态间切换的连杆4以及设置在所述的主体上杠杆式按键5，所述按键的一端为按压部，另一端为与所述的连杆4传动连接以实现所述的轴向往复移动的驱动部。需要说明的是，本发明中以插销插入端为头端或前端，以与电源线连接端为尾端或后端，此定义仅为了便于描述说明，并不对保护范围构成任何的限定。
其中，所述的主体内一般设置有三个插套，如C14和C13等规格要求的样式，同时对应设置一个锁紧片，但是，本发明同样可以适用于一个插套或者两个插套，或者更多插套的情况，而且，对于锁紧片来说，也可以由按键通过连杆同步驱动两个甚至更多个，这都可以基于本发明的设计思想轻易实现，如三个插套和一个锁紧片的配合、三个插套和两个锁紧片的配合，两个插套与一个锁紧片的配合，两个插套与两个锁紧片的配合，一个插套与一个锁紧片的配合等情况。本发明以三个插套和一个锁紧片的配合进行示范性说明，锁紧片的位置和功能与现有技术类似，在此不做过多描述。
本发明的自锁插头，对按键的转动式按压通过连杆转化为对锁紧片的驱动，按键本身为杠杆式结构，其按压部受力时绕轴转动的动作与本发明的自锁插头的插入或拔出动作很好的融合，在动作时仅需拿持按压部并施力即可保证无论是插入还是拔出时锁紧片都处于释放状态，避免了锁紧片对插销的磨损，提高了使用安全性和寿命，而且，按键动作小，与周围部件干涉小，适于任何小操作空间。
其中，所述的按键与主体间设置有复位弹簧以使连杆向前伸出以维持锁紧片处于锁紧状态，即将所述的锁紧片向锁紧方向偏置。当然，还可采用所述的连杆与主体间或者连杆与插套间设置复位弹簧的方式。按键上复位弹簧的设置可采用扭簧等多种形式，当然，可以同时在按键和主体间以及连杆与主体或插套间同时设置复位弹簧以保证锁紧片的锁紧态的有效性。
其中，所述的主体1包括固定连接的底壳11和上盖12，所述的底壳11包括底板13、一体设置在底板13前端的头腔10以及尾端的出线槽14，所述的插套座前端 深入所述的头腔内且后端被设置在所述的底板上的定位台15限位，同时在所述的插座套的底面上设置有多个卡台19以与底板上对应的卡孔配合固定。其中，所述的上盖12的前端设置有可匹配地插入所述的头腔内的止口121，所述的头腔内设置有导向板101，所述的止口上设置有对应的导向缺口。利用止口设计保证了插入深度，实现连接稳定和密封效果，导向缺口和导向板的匹配设置，增强了连接强度，而且导向板的设置也增强了底壳上腔的强度。
所述的插套座的底部形成用以将所述的连杆定位导向的导槽21，所述的导槽内设置有弹簧定位台22，所述的连杆4设置有用以定位所述的复位弹簧40且后端开口的弹簧嵌槽41，弹簧嵌槽和导槽即构成所述的复位弹簧的容纳空间。
同时，所述的插套座的前端形成有锁紧片定位槽，所述的锁紧片定位槽和头腔内的锁紧片定位台相配合完成了锁紧片上端的定位，所述的连杆前端设置有用以对所述的锁紧片下端进行定位联动的嵌槽，所述的锁紧片上设置的锁紧孔的长度方向与连杆垂直，即实现对插销非接触侧的锁紧，避免插销的变形，而且借助非接触侧的糙面提高锁紧效果。
底壳在整个插头方向上延伸，辅以上盖的固定连接构成封闭腔，整体性强且安装便利，采用头腔和后部定位台的设置方式，装配便捷，而且利用插座套进行连杆的导向和复位弹簧的设置，提高了空间利用率，而且弹簧被限定在一个相对封闭的腔内，其稳定性提高，而且整体绝缘效果高。
实施例2
其中，具体来说，为提高操作感，所述的按键为对称设置的两个，所述的连杆，优选其尾部与两个按键同时传动连接。两个按键的同步动作，对连杆施力均匀，保证其平稳沿轴向运动，实现锁紧片的状态平稳切换。所述的底壳和上盖于尾端分别对应地形成有转孔19，所述的按键的转轴两端匹配地插入所述的转孔中并被夹持定位。采用夹持式定位，按键不会脱落，装配简单。
为实现所述的传动连接，所述的驱动部设置有驱动销，在所述的连杆的尾部设置有滑槽，或者，所述的驱动部设置有滑槽，所述的连杆的尾部对应设置有驱动销，需要指出的是，为实现转动与平动的转换，所述的滑槽为圆弧式设计，通过驱动销在滑槽内相对移动，即可实现按键对连杆的轴向平动驱动。
为提高整体性以及减少整体体积，所述的按键5为可将主体侧部嵌含其中的槽式结构，所述的滑槽或驱动销对应设置在驱动部的内侧壁上。所述的主体上与驱动部和 联动部对应形成有避让凹陷。即所述的按键的纵截面为U型或C型结构，同时在主体上设置对应的卡嵌式结构，对按键实现运动避让的同时，构成有效的限位和导向。而且，在按键的驱动部和按压部与主体间还可设置卡嵌连接结构，即扣合机构，其能保持位置状态的锁紧，这样在某些场合，可先通过按下的按压部与主体的锁合将插头保持在锁紧片的释放状态，完成插入后再切换到锁紧片的锁紧状态，插入时能完全不需对按压部的挤压，插后入用手或工具将按键状态切换即可，进一步满足对苛刻环境的安装，而且，锁紧式弹簧和按键与主体的扣合的双重锁定，进一步提升锁紧效果。同时，为提高操作感受，所述的按压部的接触面上设置有多道凸棱或凸点以增加摩擦。
其中，所述的按键中部与所述的主体轴接，所述的驱动部与按压部呈夹角设置，所述的夹角优选为直角，当然也可是其他任意角度，或者采用驱动部和按压部在一条直线的设计。
作为其中一个较佳实施方式，两个所述的按键对称地设置在主体的尾部并位于宽度方向的两侧，所述的驱动部的内侧壁上形成有矩形槽51，所述的连杆尾部与之垂直地形成有可匹配插入所述的矩形槽的矩形凸销42，所述的凸销的尾端面形成有圆弧导角，圆弧导角可实现矩形槽对凸销的擒入，保证整体联动效果，圆弧倒角之后构成类似死点设计，在自由态凸销完全在矩形槽内，此时锁紧片保持最大倾斜态，当需要插入时，按压按键，实锁紧片处于直立态即释放态，当释放按键后，复位弹簧促使按键复位并使锁紧片与插销锁紧，此时凸销的圆弧倒角末端与矩形槽整体接触，相抵接触保证了按键和连杆稳定性，而且，将按键设置在插头的尾部，这就避免了和其他的结构发生干涉。
实施例3
为实现连杆相对主体的轴向往复平稳运动，所述的底板的尾部形成有前端和尾端分别开口的凹槽18，所述的连杆上形成有与所述的凹槽匹配的凸起式导向部43，如内空的圆环形导向部，所述的导向部齐平于或低于底板底面，这样使得插头的底面为平面设计，满足不同场合的插接要求，减少与其他部件的干涉。所述的连杆的头段伸入所述的主体的内腔中并与锁紧片联动，所述的连杆的尾端采用外露设计并由凹槽导向，整体体积和整体外观并未变化，可适用于各种现有的应用场合。
进一步地，为提高对连杆尾部的约束，所述的凹槽至少末端部分为T型槽，所述的连杆所述的T型槽对应的形成有导向翅片44。连杆尾部侧向延伸的导向翅片与T型槽的配合，防止连杆尾端翘起，保证按键与连杆传动有效平稳。

Claims (10)

  1. 一种自锁插头，其特征在于：包括主体、设置在主体内用以定位插套的插套座、至少一个锁紧片、受驱动沿所述主体的轴向往复移动以实现所述的锁紧片在释放和锁紧状态间切换的连杆以及设置在所述主体上的杠杆式按键，所述按键的一端为按压部，另一端为与所述的连杆传动连接以实现所述的轴向往复移动的驱动部。
  2. 根据权利要求1所述的自锁插头，其特征在于：所述的按键为对称设置的两个，所述的连杆与两个按键同时传动连接。
  3. 根据权利要求1或2所述的自锁插头，其特征在于：在所述的连杆上设置有滑槽，所述的驱动部对应设置有驱动销，或者，所述的连杆上对应设置有驱动销，所述的驱动部对应设置有滑槽。
  4. 根据权利要求3所述的自锁插头，其特征在于：所述的驱动销为设置在所述的连杆尾端两侧的凸销，所述的凸销的尾端面形成有圆弧导角，所述的滑槽为矩形槽。
  5. 根据权利要求1所述的自锁插头，其特征在于：所述的主体包括固定连接的底壳和上盖，所述的底壳包括底板、一体设置在底板前端的头腔以及设置于底板尾端的出线槽，所述的插套座前端深入所述的头腔内且后端被设置在所述底板上的定位台限位。
  6. 根据权利要求5所述的自锁插头，其特征在于：所述的插套座的底部形成用以将所述的连杆定位导向的导槽，所述的导槽内设置有弹簧定位台，所述的连杆设置有用以定位所述的复位弹簧且后端开口的弹簧嵌槽。
  7. 根据权利要求3所述的自锁插头，其特征在于：所述的按键为能将主体侧部嵌含其中的槽式结构，所述的滑槽或驱动销对应设置在驱动部的内侧壁上，所述的主体上与驱动部和联动部对应形成有避让凹陷。
  8. 根据权利要求6所述的自锁插头，其特征在于：所述底板的尾部形成有尾端开口的凹槽，所述的连杆尾端自主体内伸出并被嵌含在所述的凹槽中。
  9. 根据权利要求8所述的自锁插头，其特征在于：所述的连杆上形成有与所述的凹槽匹配的凸起式导向部，所述的导向部齐平于或低于所述底板的底面。
  10. 根据权利要求9所述的自锁插头，其特征在于：所述的凹槽至少末端部分为T型槽，所述的连杆与所述的T型槽对应的形成有导向翅片。
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