Metal push-pull self-locking connector

Abstract

The application relates to a metal push-pull self-locking connector, a plug comprising a plug main body and a first pair of plug structure members, and a socket comprising a socket main body and a second pair of plug structure members; a metal sleeve of the plug main body is inserted with a metal shell of the socket main body, and a spring sheet claw at the end of the metal sleeve is elastically accommodated in a key position slot of the metal shell; the first pair of plug structure members are inserted in the metal sleeve, the second pair of plug structure members are inserted in the metal shell, and the first pair of plug structure members are inserted with the second pair of plug structure members to form a plug-in connection structure. On one hand, the metal sleeve and the metal shell are pushed and pulled to be self-locked through the cooperation of the spring sheet claw and the key position slot; on the other hand, the design of the plug-in connection structure makes the key connection part also form an integral plug-in structure, and a close plug-in relationship is formed; on the other hand, the structure is simple, mass production is facilitated, the fixing mode is simple and firm, and the metal push-pull self-locking connector is suitable for use in harsh environments, small spaces, standard air pressure or low air pressure environments lower than the standard air pressure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of connectors, in particular to a metal push-pull self-locking connector. BACKGROUND

[0002] The conventional metal push-pull self-locking connector only has a simple plug-in function. After the metal push-pull self-locking connector plug and the socket are plugged in under the standard air pressure or the standard air pressure, the signal transmission is performed. Specifically, the conventional metal push-pull self-locking connector uses the male and female end key position to plug in and perform the signal transmission. In this case, there is a problem of insufficient connection stability. In addition, when the pressure needs to be reduced in a special harsh situation, the conventional metal push-pull self-locking connector cannot be used in a harsh environment, a small space, or a low air pressure environment less than the standard air pressure. SUMMARY

[0003] Therefore, it is necessary to provide a metal push-pull self-locking connector.

[0004] In one embodiment, a metal push-pull self-locking connector includes a plug and a socket.

[0005] The plug includes a plug main body and a first plug-in structure, and the socket includes a socket main body and a second plug-in structure.

[0006] The metal sleeve of the plug main body is inserted into the metal shell of the socket main body, and the elastic sheet claw at the end of the metal sleeve is elastically accommodated in the key position slot of the metal shell.

[0007] The first plug-in structure is inserted into the metal sleeve, the second plug-in structure is inserted into the metal shell, and the first plug-in structure and the second plug-in structure are inserted to form a plug-in connection structure.

[0008] The metal push-pull self-locking connector, on the one hand, realizes the push-pull self-locking through the cooperation of the elastic sheet claw and the key position slot of the metal sleeve and the metal shell. On the other hand, the design of the plug-in connection structure makes the key connection part of the metal push-pull self-locking connector also constitute the whole plug-in structure, forming a tight plug-in relationship. On the other hand, the metal push-pull self-locking connector has a simple structure, is convenient for mass production, has a simple and firm fixing mode, and is suitable for use in harsh environments, small spaces, standard air pressures, or low air pressure environments less than the standard air pressure.

[0009] Further, in one of the embodiments, the elastic sheet claw is provided with a front inclined surface at one end facing the metal shell, for guiding the metal sleeve to be inserted into the metal shell; and / or,

[0010] The elastic sheet claw is provided with a rear inclined surface at one end away from the metal shell, for guiding the metal sleeve to be separated from the metal shell.

[0011] In one of the embodiments, the metal sleeve is provided with a first pair of keying position markers, the metal housing is provided with a second pair of keying position markers corresponding to the first pair of keying position markers, and the first pair of keying position markers and the second pair of keying position markers are used to identify the plug-in position of the plug and the socket; and / or,

[0012] The metal sleeve is provided with an opening adjacent to the metal housing, which is used to expose the first positioning ring of the first pair of plug-in components or the plug body.

[0013] In one of the embodiments, the plug is further provided with a first positioning ring, and the socket is further provided with a second positioning ring.

[0014] The first positioning ring is sleeved outside the first pair of plug-in components, the second positioning ring is sleeved outside the second pair of plug-in components, and the first positioning ring and the second positioning ring cooperate to define the plug-in position of the first pair of plug-in components and the second pair of plug-in components.

[0015] In one of the embodiments, the socket is further provided with a limiting stop ring, which is sleeved outside the second positioning ring and is used to limit the assembly of the second pair of plug-in components and the second positioning ring as a whole in the metal housing.

[0016] In one of the embodiments, the plug body is further provided with an inner sleeve, a wire clamp, a tail screw cap, a sheath cap and a sheath.

[0017] The metal sleeve and the tail screw cap are respectively sleeved outside the inner sleeve, and the wire clamp, the first pair of plug-in components and the sheath cap are respectively inserted into the inner sleeve.

[0018] The sheath cap cooperates with the inner sleeve to fixedly connect the sheath, the wire clamp is adjacent to the sheath cap and is used to limit the position of the wire, and the wire is used to electrically connect the first soldering plug-in component of the first pair of plug-in components.

[0019] The inner sleeve, the wire clamp, the sheath cap and the sheath form a cavity through the wire.

[0020] In one of the embodiments, the plug body is further provided with an opening stop ring, which is sleeved outside the inner sleeve and is used to be compressed and deformed during the sleeving of the inner sleeve on the metal sleeve, and to be restored and deformed in the assembly groove of the metal sleeve in the sleeving state of the inner sleeve on the metal sleeve, so that the inner sleeve is limited in the metal sleeve.

[0021] In one of the embodiments, the first plug structure comprises a first insulator and first soldered plug pins, the first soldered plug pins passing through the first insulator, the first insulator being inserted into the metal sleeve;

[0022] The second plug structure comprises a second insulator and second soldered plug pins, the second soldered plug pins passing through the second insulator, the second insulator being inserted into the metal shell;

[0023] The first insulator is connected to the second insulator, and the first soldered plug pins are connected to the second soldered plug pins to electrically connect the plug to the socket.

[0024] In one of the embodiments, the first plug structure is provided with a first partition plate at an end of the first insulator away from the second plug structure, the first partition plate being used to separate the first soldered plug pins;

[0025] The second plug structure is provided with a second partition plate at an end of the second insulator away from the first plug structure, the second partition plate being used to separate the second soldered plug pins;

[0026] And / or,

[0027] The first plug structure is provided with a first guide step outside the first insulator, the first guide step being used to position the first plug structure to be inserted into the metal sleeve or a first positioning ring of the plug;

[0028] The second plug structure is provided with a second guide step outside the second insulator, the second guide step being used to position the second plug structure to be inserted into the metal shell or a second positioning ring of the socket.

[0029] In one of the embodiments, the socket body is further provided with a first gasket, a second gasket and a fastener, the first gasket, the second gasket and the fastener being sequentially sleeved outside the metal shell, the fastener being screwed with the metal shell to lock the metal shell on the metal sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0031] Figure 1This is a structural diagram of an embodiment of the metal push-pull self-locking connector described in this application.

[0032] Figure 2 for Figure 1 Schematic diagram of the structural decomposition of the embodiment shown.

[0033] Figure 3 for Figure 2 A schematic diagram of another direction of the embodiment shown.

[0034] Figure 4 for Figure 1 Another schematic diagram of the structural decomposition of the embodiment shown.

[0035] Figure 5 for Figure 1 A schematic cross-sectional view of the embodiment in one direction is shown.

[0036] Figure 6 for Figure 5 Schematic diagram of the plug of the illustrated embodiment.

[0037] Figure 7 for Figure 5 Schematic diagram of the socket of the illustrated embodiment.

[0038] Figure 8 for Figure 5 A partial structural diagram of the embodiment shown.

[0039] Figure 9 for Figure 8 A partial structural diagram of the embodiment shown.

[0040] Figure 10 for Figure 1 Another schematic diagram of the structural decomposition of the embodiment shown.

[0041] Figure 11 for Figure 10 A schematic diagram of another direction of the embodiment shown.

[0042] Figure 12 for Figure 4 A schematic diagram of the exploded structure of the plug-in connection structure of the illustrated embodiment.

[0043] Figure 13 for Figure 12 A schematic diagram of another direction of the embodiment shown.

[0044] Figure 14 for Figure 4 A schematic structural diagram of the plug-in connection structure of the illustrated embodiment.

[0045] Figure 15 for Figure 14 A schematic diagram of another direction of the embodiment shown.

[0046] Figure 16 Another direction view of the embodiment shown. Figure 14 Another direction view of the embodiment shown.

[0047] Figure 17 Another direction view of the embodiment shown. Figure 16 Another direction view of the embodiment shown.

[0048] Figure 18 Another direction view of the embodiment shown. Figure 16 Another direction view of the embodiment shown.

[0049] Figure 19 Another direction view of the embodiment shown. Figure 18 Another direction view of the embodiment shown.

[0050] Metallic push-pull self-locking connector 100, plug 200, socket 300, plug-in connection structure 400, metal sleeve 210, elastic sheet clamping jaw 211, front inclined surface 212, rear inclined surface 213, first plug-in key position mark 214, opening 215, assembly groove 216, inner sleeve 220, wire clamp 230, tail screw nut 240, opening stop ring 250, first plug-in structure 260, first insulator 261, first welded plug-in element 262, first guide step 263, first partition plate 264, first positioning ring 270, sheath cap 280, sheath 281, cavity 282, plug main body 290, first gasket 310, second gasket 320, metal shell 330, key position groove 331, second plug-in key position mark 332, fastener 340, second plug-in structure 360, second insulator 361, second welded plug-in element 362, second guide step 363, second partition plate 364, second positioning ring 370, limiting stop ring 380, socket main body 390. DETAILED DESCRIPTION

[0051] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details. In other instances, well-known process steps have not been described in detail in order to avoid obscuring the present application.

[0052] It should be noted that when an element is referred to as being "on" or "fixed to" another element, it can be directly on or fixed to the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions as used herein are for the purpose of illustration only and do not indicate the only orientation of the present application.

[0053] Furthermore, the terms "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or a quantity of indicated features. Thus, a feature defined with "first", "second" can include at least one of the feature implicitly or explicitly. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise specifically defined and limited.

[0054] In the present application, unless otherwise explicitly specified and limited, "on", "under", "above", and "over" of a first feature to a second feature can be that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "on", "above", and "over" of a first feature to a second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. "Under", "below", and "underneath" of a first feature to a second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0055] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0056] The present application discloses a metal push-pull self-locking connector, which includes some or all of the technical features of the following embodiments; that is, the metal push-pull self-locking connector includes some or all of the following structures. In one embodiment of the present application, a metal push-pull self-locking connector includes a plug and a socket; the plug includes a plug body and a first pair of plug-in structures, and the socket includes a socket body and a second pair of plug-in structures; the metal sleeve of the plug body is plugged into the metal shell of the socket body, and the spring claw at the end of the metal sleeve is elastically accommodated in the key slot of the metal shell; the first pair of plug-in structures is inserted into the metal sleeve, and the second pair of plug-in structures is inserted into the metal shell, and the first pair of plug-in structures and the second pair of plug-in structures are plugged into each other to form a plug-in connection structure. The above-mentioned metal push-pull self-locking connector, on the one hand, realizes push-pull self-locking through the cooperation of the metal sleeve and the metal shell through the spring claw and the key slot; on the other hand, the design of the plug-in connection structure makes the key connection part of the metal push-pull self-locking connector also constitute an overall plug-in structure, forming a tight plug-in relationship; on the other hand, the metal push-pull self-locking connector has a simple structure, is easy to mass produce, and has a simple and firm fixing method, which is suitable for use in harsh environments, small spaces, standard air pressure or low air pressure environments below standard air pressure. Figures 1 to 19 , the metal push-pull self-locking connector is described in detail.

[0057] In one embodiment, a metal push-pull self-locking connector 100 is Figure 1 As shown, it includes a plug 200 and a socket 300; combined Figure 2 and Figure 3 The plug 200 is detachably connected to the socket 300. Figure 4 As shown, in the metal push-pull self-locking connector 100, the plug 200 includes a plug body 290, and the socket 300 includes a socket body 390. The remaining structure of the plug 200 except the plug body 290 and the remaining structure of the socket 300 except the socket body 390 together constitute a plug-in connection structure 400.

[0058] In one embodiment, Figure 5 As shown, the plug 200 is plugged into the socket 300, and the Figure 6 and Figure 7 The metal sleeve 210 of the plug body 290 is plugged into the metal shell 330 of the socket body 390, and the metal sleeve 210 of the plug body 290 is plugged into the metal shell 330 of the socket body 390. Figure 8, the first pair of plug-in structure 260 is inserted into the metal sleeve 210, the second pair of plug-in structure 360 is inserted into the metal shell 330, and the first pair of plug-in structure 260 and the second pair of plug-in structure 360 are inserted to form a plug-in connection structure 400. Further, the first pair of plug-in structure 260 and the second pair of plug-in structure 360 are inserted in an interference fit to form a plug-in connection structure 400. Such a structure design, through the design of the plug-in connection structure 400, makes the key connection part of the metal push-pull self-locking connector 100 also constitute the overall plug-in structure, forming a tight plug-in relationship, easy to assemble separately, easy to facilitate the realization of automatic production process; and the metal push-pull self-locking connector 100 has the advantages of simple structure, easy to mass produce, and the fixing method of the metal push-pull self-locking connector 100 is simple and firm, suitable for use in harsh environment, small space, standard atmospheric pressure or low atmospheric pressure environment.

[0059] In combination Figure 6 And Figure 9 Further, in one embodiment, the elastic sheet claw 211 at the end of the metal sleeve 210 is elastically accommodated in the key slot 331 of the metal shell 330; in one embodiment, the elastic sheet claw 211 is provided with a front inclined surface 212 towards one end of the metal shell 330, for guiding the metal sleeve 210 to be inserted into the metal shell 330; and / or the elastic sheet claw 211 is provided with a rear inclined surface 213 away from one end of the metal shell 330, for guiding the metal sleeve 210 to be separated from the metal shell 330. Further, the front inclined surface 212 and the rear inclined surface 213 are both towards the inner wall of the metal shell 330, for the front inclined surface 212 and the rear inclined surface 213 to contact the inner wall of the metal shell 330 when the plug 200 and the socket 300 are assembled and disassembled. Such a structure design is beneficial to improve the push-pull assembly and disassembly effect of the metal push-pull self-locking connector 100. On the one hand, the metal sleeve 210 and the metal shell 330 realize push-pull self-locking through the cooperation of the elastic sheet claw 211 and the key slot 331; on the other hand, the design of the front inclined surface 212 is beneficial to guide the metal sleeve 210 to be inserted into the metal shell 330; and on the other hand, the design of the rear inclined surface 213 is beneficial to make the metal sleeve 210 easily separate from the metal shell 330 when the plug 200 and the socket 300 are pulled apart, which not only meets the requirements of simple and firm fixing method of push-pull self-locking, but also achieves easy assembly and disassembly of the plug 200 and the socket 300, thus improving the stability of use in harsh environment, small space, standard atmospheric pressure or low atmospheric pressure environment.

[0060] In one embodiment, as Figure 2As shown, the metal sleeve 210 is provided with a first pair of keying position markers 214, and the metal housing 330 is provided with a second pair of keying position markers 332 corresponding to the first pair of keying position markers 214, the first pair of keying position markers 214 and the second pair of keying position markers 332 are used to identify the plug-in position of the plug 200 and the socket 300; and / or, the metal sleeve 210 is provided with an opening 215 adjacent to the metal housing 330, for exposing the first positioning ring 270 of the first pair of plug structure members 260 or the plug body 290. Such a structural design is conducive to quickly and accurately plugging the plug 200 and the socket 300, and is also conducive to cooperating with an automatic device to achieve automatic plugging.

[0061] In combination Figure 6 and Figure 9 In one embodiment, the plug body 290 is further provided with an inner sleeve 220, a wire clamp 230, a tail nut 240, a sheath cap 280, and a sheath 281; in combination with Figure 10 and Figure 11 The metal sleeve 210 and the tail nut 240 are respectively sleeved outside the inner sleeve 220, and the wire clamp 230, the first pair of plug structure members 260, and the sheath cap 280 are respectively inserted into the inner sleeve 220; the sheath cap 280 cooperates with the inner sleeve 220 to fixedly sleeve the sheath 281, the wire clamp 230 is adjacent to the sheath cap 280 and is used to limit the position of a wire used for electrically connecting the first soldering plug member 262 of the first pair of plug structure members 260; the inner sleeve 220, the wire clamp 230, the sheath cap 280, and the sheath 281 form a cavity 282 through the wire. Such a structural design is conducive to protecting the wire, and on the other hand, is conducive to pre-soldering the wire on the first pair of plug structure members 260 or the first soldering plug member 262, and then quickly passing through the inner sleeve 220, the wire clamp 230, the sheath cap 280, and the sheath 281 to complete the assembly.

[0062] In one embodiment, as shown in Figure 10 the plug body 290 is further provided with an opening blocking ring 250, in combination with Figure 9 and Figure 11The open blocking ring 250 is sleeved outside the inner sleeve 220, is compressed and deformed during the sleeving of the inner sleeve 220 on the metal sleeve 210, and is restored and deformed in the assembly groove 216 of the metal sleeve 210 when the inner sleeve 220 is sleeved on the metal sleeve 210, so that the inner sleeve 220 is limited in the metal sleeve 210. Such a structure design greatly improves the convenience of assembly and the structural stability after assembly of the inner sleeve 220 and the metal sleeve 210, and is especially suitable for use in harsh environments, narrow spaces, standard atmospheric pressure or low atmospheric pressure environments.

[0063] In combination Figure 7 and Figure 11 In one embodiment, the socket body 390 is further provided with a first gasket 310, a second gasket 320 and a fastener 340, which are sequentially sleeved outside the metal shell 330, and the fastener 340 is screwed with the metal shell 330 to lock the metal shell 330 on the metal sleeve 210; for example, the fastener 340 locks the metal shell 330, so that the metal shell 330 is slightly deformed to tightly abut the plug body 290 or the metal sleeve 210 thereof. Further, in one embodiment, the first gasket 310 is a shock-absorbing gasket; and / or, the second gasket 320 is a flat gasket; and / or, the fastener 340 is a hexagonal nut. Such a structure design is beneficial to ensure the stability of the plug 200 and the socket 300.

[0064] In combination Figure 12 and Figure 13 The plug 200 includes a plug body 290 and a first plug structure 260, and the socket 300 includes a socket body 390 and a second plug structure 360; in combination Figure 14 and Figure 15In the embodiment, the plug 200 is further provided with a first positioning ring 270, and the socket 300 is further provided with a second positioning ring 370. The first positioning ring 270 is sleeved on the first pair of plug structure 260, and the second positioning ring 370 is sleeved on the second pair of plug structure 360. The first positioning ring 270 cooperates with the second positioning ring 370 to limit the plug-in position of the first pair of plug structure 260 and the second pair of plug structure 360. In the embodiment, the first positioning ring 270 and the second positioning ring 370 can also be considered as part of the plug connection structure 400. For other embodiments with a limiting ring 380, the limiting ring 380 can also be considered as part of the plug connection structure 400. That is, in one of the embodiments, the plug connection structure 400 includes the first pair of plug structure 260, the second pair of plug structure 360, the first positioning ring 270, the second positioning ring 370, and the limiting ring 380. That is, for embodiments without the first positioning ring 270, the second positioning ring 370, and the limiting ring 380, the first pair of plug structure 260 and the second pair of plug structure 360 are plugged together to constitute the entire plug connection structure 400. For embodiments with the first positioning ring 270, the second positioning ring 370, and the limiting ring 380, the first pair of plug structure 260 and the second pair of plug structure 360 are plugged together to constitute part of the plug connection structure 400.

[0065] Further, in one of the embodiments, the first positioning ring 270 and the second positioning ring 370 are integrally formed as a cylindrical shape. In combination with Figure 18 and Figure 19 Further, in one of the embodiments, the first positioning ring 270 and the second positioning ring 370 each have a semicircular cross-section for forming a cylindrical shape in the cooperating state. Alternatively, the first positioning ring 270 and the second positioning ring 370 each have an arc-shaped cross-section for forming a cylindrical shape in the cooperating state. In this form, the first positioning ring 270 and the second positioning ring 370 can be referred to as a half-moon positioning ring. Such a structure design is beneficial to ensure that the plug 200 and the socket 300 can be positioned by the first positioning ring 270 and the second positioning ring 370 in the plugged state, and to ensure the accurate plug-in direction of the plug 200 and the socket 300.

[0066] In combination with Figure 16 and Figure 17In this embodiment, the socket 300 is further provided with a retaining ring 380. This retaining ring 380 is disposed outside the second positioning ring 370 and is used to positionally retain the second plug-in structure 360 ​​and the second positioning ring 370 within the socket body 390, such as the metal housing 330 of the socket body 390. In other embodiments, the retaining ring 380 can also be provided on the plug 200, disposed outside the first positioning ring 270, and assembled within the socket 300 or its metal housing 330. This structural design helps ensure the stability of the second plug-in structure 360 ​​inserted into the metal housing 330.

[0067] In one embodiment, Figure 18 and Figure 19 As shown, the first pair of plug-in components 260 includes a first insulator 261 and a first welding plug-in 262. The first welding plug-in 262 passes through the first insulator 261 and is combined with the first welding plug-in 262. Figure 6 The first insulator 261 is inserted into the metal sleeve 210; the second pair of plug-in components 360 includes a second insulator 361 and a second welding plug-in 362, the second welding plug-in 362 passes through the second insulator 361, combined with Figure 7 , the second insulator 361 is inserted into the metal shell 330; Figure 17 , the first insulator 261 is plugged into the second insulator 361, and the first welding plug-in 262 is plugged into the second welding plug-in 362 to make the plug 200 and the socket 300 conductively connected. Furthermore, the first welding plug-in 262 and the second welding plug-in 362 are plugged into each other in an interference fit manner to make the plug 200 and the socket 300 conductively connected. In this embodiment, the first welding plug-in 262 is a plug-in tube, and the second welding plug-in 362 is a pin, and the plugging of the two is conductively connected; in other embodiments, the opposite is also possible, that is, the first welding plug-in 262 is a pin, and the second welding plug-in 362 is a plug-in tube. Such a structural design, on the one hand, is conducive to ensuring the accuracy of fast plug-in while improving the efficiency of plug-in, and on the other hand, is conducive to cooperating to achieve automated assembly.

[0068] Furthermore, in one embodiment, the first insulator 261 is fixed to the metal sleeve 210, the inner sleeve 220 or the wire clamp 230 by means of glue filling, and the second insulator 361 is fixed to the metal shell 330 by means of key fixing. Figure 15In this embodiment, the first pair of plug members 260 have a first guide step 263 protruding from the outside of the first insulator 261. This first guide step 263 is used to position the first pair of plug members 260 within the metal sleeve 210 or the first positioning ring 270 of the plug 200. The second pair of plug members 360 have a second guide step 363 protruding from the outside of the second insulator 361. This second guide step 363 is used to position the second pair of plug members 360 within the metal housing 330 or the second positioning ring 370 of the receptacle 300. This structural design facilitates quick alignment and installation of the first and second pair of plug members 260, 360, improving assembly efficiency and preventing assembly defects.

[0069] Combine Figure 16 In this embodiment, a first partition 264 is provided on the end of the first insulator 261 facing away from the second plug-in structure 360. The first partition 264 is used to separate the first welding plug-in pairs 262. A second partition 364 is provided on the end of the second insulator 361 facing away from the first plug-in structure 260. The second partition 364 is used to separate the second welding plug-in pairs 362. Furthermore, for the four first welding plug-in pairs 262 and four second welding plug-in pairs 362 shown in the illustrated embodiment, both the first partition 264 and the second partition 364 are cross-shaped partitions to separate the first welding plug-in pairs 262 and the second welding plug-in pairs 362. This structural design helps increase creepage distance and improve electrical safety.

[0070] Next, continue to combine Figures 1 to 19 , the metal push-pull self-locking connector 100 is illustrated as an example. In one embodiment, the metal push-pull self-locking connector 100 has a circular cross-section, and thus can be called a circular metal push-pull self-locking high-voltage resistant connector.

[0071] Exemplarily, the metal sleeve 210, the tail nut 240, the open retaining ring 250 and the first gasket 310 are all made of stainless steel. The stainless steel material is resistant to high temperatures, resistant to corrosive media, high strength or rust-proof. At the same time, passivation treatment is performed to further improve the corrosion resistance of the material, further improving the corrosion resistance of the material.

[0072] The sheath 281 is made of silica gel or rubber. The sheath cap 280, the wire clamp 230, the inner sleeve 220, the first positioning ring 270, the second gasket 320, the metal shell 330, the fastener 340, the second positioning ring 370, and the limiting ring 380 are made of copper plated nickel, copper plated gold, or copper plated chromium. For example, the sheath cap 280, the wire clamp 230, the inner sleeve 220, the first positioning ring 270, the second gasket 320, the metal shell 330, the fastener 340, and the second positioning ring 370 are made of copper plated nickel, and the limiting ring 380 is made of copper plated chromium. Such a structure design uses brass material with high strength, hardness, and easy processing, can well withstand force in a hot state, and uses nickel plating to improve passivation ability to prevent brass metal from being corroded by the medium.

[0073] The first soldering plug 262 and the second soldering plug 362 are made of copper or copper plated gold, use brass as a dielectric material, and have low cost, good electrical conductivity, excellent electrical resistance, and easy processing. The outer plating layer is treated by gold plating to further strengthen the electrical conductivity of the material and reduce the electrical resistance. The first insulator 261 and the second insulator 361 are made of thermoplastic material such as polysulfone (PSU), which has excellent torsional resistance, electrical insulation, good heat resistance, and mechanical strength.

[0074] The cooperation of the plug 200 and the socket 300 is self-locked, mainly through the cooperation of the metal sleeve 210 and the metal shell 330. The end of the metal sleeve 210 is designed with elastic spring claws 211 as key position springs. The material is stainless steel, which has excellent elasticity and good wear resistance. In a high-frequency use environment, it can still maintain excellent performance and mechanical life. When the plug 200 and the socket 300 are plugged, the plug 200 is partially inserted into the socket 300, the spring claws 211 of the metal sleeve 210 are extruded by the inner wall of the metal shell 330 of the socket 300, the metal shell 330 is provided with a key slot 331 corresponding to the spring claws 211, the extruded spring is released, self-locking is formed, and plugging is completed, thereby achieving the effect of push-pull self-locking.

[0075] When unlocked, the plug 200 and the socket 300 are subjected to relative separation tension. The rear inclined surface 213 on the spring claw 211 guides the metal sleeve 210 to separate from the metal shell 330, so that the force can complete the unlocking. Therefore, there is no need to worry about the plug 200 being pulled out after being inserted into the socket 300.

[0076] In addition, the plug 200 and the socket 300 are respectively provided with first and second plugging key position marks 214 and 332 for guiding plugging. The metal sleeve 210 and / or the metal shell 330 can be provided with anti-slip lines to facilitate unlocking.

[0077] In assembly, the first positioning ring 270 and the second positioning ring 370 of the half moon positioning ring can be inserted blindly, which is convenient for insertion and ensures safety. The first insertion structure 260 and the second insertion structure 360 are assembled with interference, and the first welding insertion part 262 and the second welding insertion part 362 are respectively connected to the conductive wire such as a welding wire, so that the stability during insertion is higher. The welding of the first welding insertion part 262 and the second welding insertion part 362 can adopt a wire welding form, which can be operated in a small working space, thereby improving the work efficiency during operation and reducing the cost.

[0078] In assembly, the existence of the first guide step 263 and the second guide step 363 can enable the operator or the automatic process to quickly distinguish the front and back ends in the needle pressing and hole pressing process, thereby facilitating accurate assembly. The second insulator 361 adopts key fixing, and the concave-convex key position is matched to fix the second insertion structure 360; the first insulator 261 adopts glue filling to achieve fixing effect, which is simple to assemble and not easy to loosen; the first welding insertion part 262 and the second welding insertion part 362 themselves or in cooperation with the first insulator 261 and the second insulator 361 control the direction through the key position, which is simple and reliable as a whole, greatly improving the assembly efficiency.

[0079] Exemplarily, the first insulator 261 and the second insulator 361 adopt polysulfone as the insulating material, so that the product realizes high insulation and high voltage resistance, and the hole spacing and wall thickness of the insulator can be thickened, further strengthening the voltage breakdown voltage resistance performance; the design of the first partition plate 264 and the second partition plate 364, such as cross type, further strengthens the creepage distance, better seals the contact piece, and achieves the design use effect.

[0080] The fixed connection of the metal sleeve 210 and the inner sleeve 220 of the plug 200 can be achieved by using an open retaining ring 250, and can also be combined with interference fit or buckle fit, etc. The open retaining ring 250 is sleeved into the groove of the inner sleeve 220, and is sleeved into the metal sleeve 210 after compression of the open retaining ring 250. The metal sleeve 210 can also be called an outer sleeve. When the metal sleeve 210 is inserted into the bottom of the inner sleeve 220, the open retaining ring 250 is bounced in the key groove of the metal sleeve 210, such as the assembly groove 216, to form a fixed connection. The open retaining ring 250 can be made of stainless steel.

[0081] The lower half of the plug 200 mainly comprises a wire clamp 230, a tail screw cap 240, a sheath cap 280, and a sheath 281, etc., and has the functions of fixing the wire harness and sealing the connector after assembly. The sheath 281 is sleeved in the mounting groove of the sheath cap 280, and then is assembled into the tail screw cap 240. The tail screw cap 240 is screwed with the inner sleeve 220. Exemplarily, the tail screw cap 240 is sleeved outside the inner sleeve 220 and is screwed with the inner sleeve 220. The assembly of the lower half of the plug 200 is completed by tightening the tail screw cap 240. The tail screw cap 240 itself is made of brass plated with nickel and has certain electrical conductivity, which can protect the wire harness from working normally under high temperature and high pressure. After the first welding plug-in part 262 is welded with the wire, the wire harness is tightened and fixed by the wire clamp 230, and then the wire harness is locked and wrapped by the parts in the tail screw cap 240, such as the sheath cap 280, so as to be sealed as a whole. The tail contains a sheath, such as a silica gel sleeve, which can further protect the wire harness head from being damaged. The sheath can be a silica gel sleeve or not. Such structure makes the parts of the lower half of the plug 200 simple, convenient to use, fast to install, maintainable, and reusable.

[0082] Such structure design solves the problem of inconvenient operation and difficulty in working in a small space of the traditional metal push-pull self-locking connector. The metal push-pull self-locking connector 100 has excellent environmental resistance, strong vibration resistance and impact resistance, meets the use requirements of a small space environment, and has the comprehensive performance of small size, light weight, and high reliability.

[0083] It should be noted that other embodiments of the present application also include the metal push-pull self-locking connector formed by the combination of the technical features of the above embodiments.

[0084] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0085] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A metal push-pull self-locking connector (100), characterized in that, The plug (200) and the socket (300) are included; The plug (200) includes a plug body (290) and a first pair of plug structure (260), and the socket (300) includes a socket body (390) and a second pair of plug structure (360); The metal sleeve (210) of the plug body (290) is inserted with the metal shell (330) of the socket body (390), and the elastic sheet claw (211) at the end of the metal sleeve (210) is elastically accommodated in the key slot (331) of the metal shell (330); The first pair of plug structure (260) is inserted in the metal sleeve (210), the second pair of plug structure (360) is inserted in the metal shell (330), and the first pair of plug structure (260) is inserted with the second pair of plug structure (360) to constitute a plug connection structure (400); The plug (200) is further provided with a first positioning ring (270), and the socket (300) is further provided with a second positioning ring (370); the first positioning ring (270) is sleeved outside the first pair of plug structure (260), the second positioning ring (370) is sleeved outside the second pair of plug structure (360), and the first positioning ring (270) is matched with the second positioning ring (370) to limit the insertion position of the first pair of plug structure (260) and the second pair of plug structure (360); The socket (300) is further provided with a limiting stop ring (380), the limiting stop ring (380) is sleeved outside the second positioning ring (370), and the second pair of plug structure (360) and the second positioning ring (370) are integrally limited and assembled in the metal shell (330).

2. The metal push-pull self-locking connector (100) according to claim 1, characterized in that, The metal sleeve (210) is provided with a first pair of plug key position mark (214), the metal shell (330) is provided with a second pair of plug key position mark (332) corresponding to the first pair of plug key position mark (214), and the first pair of plug key position mark (214) and the second pair of plug key position mark (332) are used for identifying the insertion position of the plug (200) and the socket (300).

3. The metal push-pull self-locking connector (100) according to claim 2, characterized in that, The metal sleeve (210) is provided with an opening (215) adjacent to the metal shell (330), and the first pair of plug structure (260) or the first positioning ring (270) of the plug body (290) is exposed through the opening (215).

4. The metal push-pull self-locking connector (100) according to claim 1, characterized in that, The metal sleeve (210) is provided with an opening (215) adjacent to the metal shell (330), and the first pair of plug structure (260) or the first positioning ring (270) of the plug body (290) is exposed through the opening (215).

5. The metal push-pull self-locking connector (100) according to claim 1, characterized in that, The plug body (290) is further provided with an inner sleeve (220), a wire clamp (230), a tail nut (240), a sheath cap (280) and a sheath (281); The metal sleeve (210) and the tail nut (240) are sleeved outside the inner sleeve (220), and the wire clamp (230), the first pair of plug structure (260) and the sheath cap (280) are inserted into the inner sleeve (220) respectively. The sheath cap (280) cooperates with the inner sleeve (220) to fixedly sleeve the sheath (281), and the wire clamp (230) is adjacent to the sheath cap (280) and is used for limiting the position of the wire, and the wire is used for electrically connecting the first welding plug (262) of the first pair of plug structure (260). The inner sleeve (220), the wire clamp (230), the sheath cap (280) and the sheath (281) form a cavity (282) through the wire inside.

6. The metal push-pull self-locking connector (100) according to claim 5, characterized in that, The plug body (290) is further provided with an open check ring (250), the open check ring (250) is sleeved outside the inner sleeve (220), is compressed and deformed during the sleeving of the inner sleeve (220) on the metal sleeve (210), and is restored and deformed in the assembly groove (216) of the metal sleeve (210) in the state that the inner sleeve (220) is sleeved on the metal sleeve (210), so that the inner sleeve (220) is limited in the metal sleeve (210).

7. The metal push-pull self-locking connector (100) according to claim 1, characterized in that, The first pair of plug structure (260) includes a first insulator (261) and a first welding plug (262), the first welding plug (262) passes through the first insulator (261), and the first insulator (261) is inserted into the metal sleeve (210); The second pair of plug structure (360) includes a second insulator (361) and a second welding plug (362), the second welding plug (362) passes through the second insulator (361), and the second insulator (361) is inserted into the metal shell (330); The first insulator (261) and the second insulator (361) are inserted, and the first welding plug (262) and the second welding plug (362) are inserted to electrically connect the plug (200) and the socket (300).

8. The metal push-pull self-locking connector (100) according to claim 7, characterized in that, The first pair of plug structure (260) is provided with a first partition plate (264) at one end of the first insulator (261) away from the second pair of plug structure (360), and the first partition plate (264) is used for spacing each first welding plug (262).

9. The metal push-pull self-locking connector (100) according to claim 8, characterized in that, The second pair of plug structure (360) is provided with a second partition plate (364) at one end of the second insulator (361) away from the first pair of plug structure (260), and the second partition plate (364) is used for spacing each second welding plug (362).

10. The metal push-pull self-locking connector (100) according to claim 7, characterized in that, The second pair of plug structure (360) is provided with a second partition plate (364) at one end of the second insulator (361) away from the first pair of plug structure (260), and the second partition plate (364) is used for spacing each second welding plug (362).

11. The metal push-pull self-locking connector (100) according to claim 7, characterized in that, The first pair of plug structure (260) is provided with a first guide step (263) outside the first insulator (261), which is used for positioning the first pair of plug structure (260) to be inserted into the first positioning ring (270) of the metal sleeve (210) or the plug (200).

12. The metal push-pull self-locking connector (100) according to claim 11, characterized in that, The second pair of plug structure (360) is provided with a second guide step (363) outside the second insulator (361), which is used for positioning the second pair of plug structure (360) to be inserted into the second positioning ring (370) of the metal shell (330) or the socket (300).

13. The metal push-pull self-locking connector (100) according to claim 7, characterized in that, The second pair of plug structure (360) is provided with a second guide step (363) outside the second insulator (361), which is used for positioning the second pair of plug structure (360) to be inserted into the second positioning ring (370) of the metal shell (330) or the socket (300).

14. The metal push-pull self-locking connector (100) according to any one of claims 1 to 13, characterized in that, The socket body (390) is further provided with a first gasket (310), a second gasket (320) and a fastener (340), which are sequentially sleeved outside the metal shell (330), and the fastener (340) is screwed with the metal shell (330) to lock the metal shell (330) on the metal sleeve (210).

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