A mating structure of a quick plug-in connector

Abstract

The application discloses a matching structure of a quick plug-in connector and relates to the technical field of aviation connectors, which comprises a connector plug and a connector socket, characterized in that the matching structure further comprises a coupling jack assembly installed in the connector plug, the coupling jack assembly comprises a front-end jack and a rear-end jack, the front-end jack is in a conical barrel type structure, the diameter of the front-end jack gradually decreases from an inlet end to an outlet end, a plurality of first notches are formed in the side wall of the outlet end of the front-end jack, the inlet end of the rear-end jack is in a conical barrel type structure, the diameter of the rear-end jack gradually increases from the inlet end to the other end, and a plurality of second notches are formed in the side wall of the inlet end of the rear-end jack. The application solves the problem that the existing aviation jack design is unreasonable, the aviation jack and the plug pin are easy to collide with each other when being coupled, damage is caused, and the automatic equipment is affected.

Description

Technical Field

[0001] This invention relates to the field of aviation connector technology, and more specifically, to a mating structure for a quick-release connector. Background Technology

[0002] A connector is a metric / imperial circular connector used in industrial automation and other harsh environments where tight, robust, and reliable switching power supplies, data signals, and data connections are required. Its applications are very wide. In the field of aerospace connectors, quick-connect fittings enable rapid coupling and disconnection of the plug and socket. Existing quick-connect fittings have solved the problem of tight, secure, and reliable connections for power supplies and signals in industrial automation; however, in actual use, existing aerospace connectors have significant problems with user experience and assembly processes.

[0003] Existing aviation connectors contain built-in contactors, such as crown spring contact rings in crown spring connectors. Under the influence of gravity, these built-in contactors may sag, meaning they may contact the lower surface of the mounting hole but separate from the upper surface. This results in misalignment with the mounting hole. When inserting a pin, the pin tip may collide with the end of the built-in contactor. This collision is more severe with older built-in contactors, leading to difficulties in pin insertion, damage to the pin or the built-in contactor, and difficulty in tightening. Consequently, the connection between the aviation connector and the pin is unreliable. Summary of the Invention

[0004] This invention provides a mating structure for a quick-release connector to solve the problem that the existing aviation connector design is unreasonable, which easily leads to unreliable connection between the aviation connector and the pin, causing damage to automated equipment.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A mating structure for a quick-release connector includes a connector plug and a connector socket, and further includes a coupling socket assembly installed within the connector plug. The coupling socket assembly includes a front socket and a rear socket. The front socket has a conical barrel shape, and its diameter gradually decreases from the inlet end to the outlet end. A plurality of first notches are formed on the side wall of the outlet end of the front socket. The inlet of the rear socket has a conical barrel shape, and its diameter gradually increases from the inlet end to the other end. A plurality of second notches are formed on the side wall of the inlet end of the rear socket.

[0007] Existing aviation connectors require a tight fit between the connector and the pin to enhance transmission capability. However, the built-in contactor of existing aviation connectors is located inside the mounting panel. Due to gravity and other factors, the built-in contactor is prone to misalignment with the mounting hole, causing eccentricity. This leads to the aviation connector pin easily hitting the built-in contactor during coupling, resulting in damage. Therefore, this invention sets the coupling connector assembly as a front connector and a rear connector, with the front connector having a conical barrel shape to guide the pin in, avoiding the aforementioned problems from the inlet end. By matching the outlet end of the conical barrel structure of the front connector with the inlet end of the conical barrel structure of the rear connector, when the pin is inserted, the pin first... The exit end of the front socket is expanded, and then the exit end of the front socket expands the inlet end of the rear socket, making the front and rear sockets fit tightly to ensure the reliability of the connection. The reaction force of the front and rear sockets also secures the pins. At the same time, since the coupling socket assembly is installed in the mounting hole inside the connector plug, the rear socket, after being expanded, fits against the inner wall of the mounting hole and cannot be expanded further, so that the mounting hole of the connector plug limits the rear socket. In this invention, the "inlet end" and "exit end" are both related to the insertion direction of the pins. The direction in which the pins are inserted is the "inlet end", and the other end is the "exit end".

[0008] The cone-shaped front socket guides the pins, preventing misalignment. The first and second notches allow the front and rear sockets to open and close properly, respectively. Simultaneously, the first and second notches adapt to the cone-shaped structure, pre-tightening the front and rear sockets to ensure reliable connection with the pins during coupling. Furthermore, the first and second notches allow gas to escape from the sockets, preventing the insertion of the pins from creating an adhesive force that could hinder normal pin removal.

[0009] Furthermore, the outer diameter of the outlet end of the front socket is smaller than the inner diameter of the inlet end of the rear socket, and the outlet end of the front socket is set with a first rounded corner.

[0010] The outer diameter of the outlet end of the front socket is smaller than the inner diameter of the inlet end of the rear socket, which facilitates the mating and installation of the front and rear sockets. The first rounded corner set at the outlet end of the front socket can reduce the resistance of the front socket end to the pin when the pin is pulled out, so that the pin can be pulled out smoothly, while avoiding damage to the pin.

[0011] Furthermore, the front-end socket is provided with an anti-detachment structure in the middle to prevent the coupling socket assembly from falling off. The anti-detachment structure is made of elastic material, and the maximum diameter of the anti-detachment structure is greater than the diameter of the inlet end of the front-end socket.

[0012] When installing the coupling socket assembly, first install the rear socket, and then push the front socket into the mounting hole. Since the maximum diameter of the anti-detachment structure is larger than the inlet diameter of the front socket, the anti-detachment structure made of elastic material is compressed and deformed. When the anti-detachment structure enters the mounting hole, the elastic material releases its elastic deformation, causing the anti-detachment structure to open and cooperate with the limiting device on the side wall of the mounting hole to limit it, preventing the coupling socket assembly from being pulled out of the mounting hole when the pin is pulled out. The maximum diameter of the anti-detachment structure refers to the maximum diameter of the anti-detachment structure when it is in the relaxed state.

[0013] Furthermore, a first protrusion is provided on the outer side of the inlet end of the front socket, and there is a gap between the first protrusion and the anti-detachment structure.

[0014] The first protrusion, together with the anti-detachment structure, provides bidirectional limiting for the front-end socket, ensuring that the front-end socket is fixedly installed in the mounting hole and preventing it from falling out or penetrating into the mounting hole when inserting or removing the pins, thus preventing damage to the equipment.

[0015] Furthermore, the inner side of the inlet end of the front socket is provided with a second rounded corner. The second rounded corner makes the inlet end of the front socket "trumpet-shaped", allowing the pin to be inserted into the front socket more easily.

[0016] Furthermore, the rear end socket is provided with a limiting structure to prevent the rear end socket from moving toward the outlet end side of the rear end socket.

[0017] The limiting structure matches the limiting block on the mounting hole to limit the rear insertion hole and prevent radial displacement of the rear insertion hole. At the same time, the limiting structure is cut from the cylindrical surface of the rear insertion hole, which can limit the rear insertion hole axially and circumferentially. The specific cutting method and cutting shape are not specifically limited here.

[0018] Furthermore, the connector plug has several mounting holes for mounting the coupling socket assembly, and the inner diameter of the mounting holes is smaller than the maximum outer diameter of the anti-disengagement structure.

[0019] The inner diameter of the mounting hole is smaller than the maximum outer diameter of the anti-detachment structure, which makes it easier to insert the coupling socket assembly. When the mounting hole is inserted, it can squeeze the anti-detachment structure, causing the anti-detachment structure to undergo elastic deformation, thus facilitating the anti-detachment structure to prevent it from falling off.

[0020] Furthermore, a limiting ring and a limiting block are provided on the inner sidewall of the mounting hole. The limiting ring is located between the first protrusion on the installed coupling socket assembly and the anti-detachment structure, and the limiting block matches the limiting structure.

[0021] When the coupling socket assembly is installed into the mounting hole, the first protrusion is located at the entrance of the mounting hole. Therefore, the limiting ring is located near the entrance of the mounting hole, and the distance between the limiting ring and the entrance of the mounting hole is equal to the radial thickness of the first protrusion. This allows the limiting ring to be embedded between the first protrusion and the anti-detachment structure, thus limiting the coupling socket assembly in both directions. The limiting block is the opposite structure to the limiting structure, and together they form a cylindrical structure, allowing the limiting block to limit the coupling socket assembly axially and circumferentially.

[0022] Furthermore, it also includes a connecting end cap rotatably connected to the connector plug. The connecting end cap is coaxial with the connector plug. The inner surface of the connecting end cap has several second protrusions, and the outer diameter surface of the connector socket has several spiral grooves, which match and correspond one-to-one with the second protrusions. The inner diameter of the connecting end cap is larger than the outer diameter of the connector socket, and the inner diameter of the connector socket is larger than the outer diameter of the connector plug.

[0023] When mating the connector plug and connector socket, align the socket on the connector plug with the pin on the connector socket, push the connector plug and connector socket to mate and match, and screw the connector end cap so that the second protrusion on the inner side of the connector end cap matches the spiral groove on the outer diameter surface of the connector socket. Rotate the connector end cap so that the second protrusion enters along the spiral groove to complete the mating and fastening. Compared with the existing threaded connection method, this structure is easier to mate, and the mating and disassembly speeds are faster, which can save a lot of time and facilitate dealing with emergency situations.

[0024] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0025] (1) This invention sets the coupling socket assembly into two parts: a front socket and a rear socket. The contact part of the two parts is set into a cone-shaped structure with a notch. When the pin is inserted, the outlet end of the front socket and the inlet end of the rear socket are expanded in sequence to ensure the reliability of the connection between the two parts. At the same time, the reaction force of the front socket and the rear socket is used to tighten the pin. The structure is ingenious. The cone-shaped structure is tightly integrated with the mounting hole, and there will be no misalignment. The opening on the end face of the connector plug is in contact with the inlet end of the coupling socket assembly. The eccentricity problem is solved from the inlet end of the cone-shaped structure. This avoids the problem of pin collision caused by misalignment of internal components when the socket and the pin are connected, which could damage the pin or the socket.

[0026] (2) The first and second notches can be adapted to the cone-shaped structure, so that the front and rear sockets are in a pre-tight state, ensuring reliable connection with the pin during coupling. At the same time, the first and second notches can discharge the gas in the socket, avoiding the formation of an adsorption force between the inserted pin and the socket, which would affect the normal pull-out of the pin and cause damage to the pin or the socket.

[0027] (3) By setting the outlet end of the front socket to a first rounded corner, the resistance of the end of the front socket to the pin is reduced when the pin is pulled out, so that the pin can be pulled out smoothly and at the same time, the pin is not worn.

[0028] (4) By setting the inner side of the inlet end of the front socket to a second rounded corner, the inlet end of the front socket is made into a "trumpet shape", which guides the pin to be smoothly inserted into the front socket.

[0029] (5) The connector plug and connector socket are connected by the second protrusion on the inner side of the connecting end cover and the spiral groove on the outer diameter surface of the connector socket, so as to realize the quick docking or separation operation, save a lot of time, and improve work efficiency and user experience. Attached Figure Description

[0030] The accompanying drawings, which are provided to further illustrate embodiments of the invention and constitute a part of this invention, are not intended to limit the scope of the invention.

[0031] Figure 1 This is a schematic diagram of the connector plug and socket structure in this invention;

[0032] Figure 2 This is a schematic diagram of the coupling socket assembly structure in this invention;

[0033] Figure 3 This is a cross-sectional view of the coupling socket assembly in this invention;

[0034] Figure 4 This is a cross-sectional view of the connector plug in this invention;

[0035] Figure 5 This is a cross-sectional view of the connector plug structure after the coupling socket assembly is installed in this invention;

[0036] Figure 6 This is a schematic diagram of the connecting end cap structure in this invention;

[0037] Among them, 1-connector plug, 2-connector socket, 3-coupling socket assembly, 301-front socket, 302-rear socket, 303-first notch, 304-second notch, 4-first rounded corner, 5-anti-detachment structure, 6-first protrusion, 7-second rounded corner, 8-limiting structure, 9-mounting hole, 10-limiting ring, 11-limiting block, 12-connecting end cap, 13-second protrusion, 14-spiral groove. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0040] Please refer to Figure 1-5 As shown, the present invention provides a mating structure for a quick-connect connector, including a connector plug 1 and a connector socket 2. The invention is characterized by further including a coupling socket assembly 3 installed within the connector plug 1. The coupling socket assembly 3 includes a front socket 301 and a rear socket 302. The front socket 301 has a conical barrel shape, and its diameter gradually decreases from the inlet end to the outlet end. A plurality of first notches 303 are provided on the side wall of the outlet end of the front socket 301. The inlet of the rear socket 302 has a conical barrel shape, and its diameter gradually increases from the inlet end to the other end. A plurality of second notches 304 are provided on the side wall of the inlet end of the rear socket 302.

[0041] Since this invention uses pins to open the outlet end of the front socket 301 and the inlet end of the rear socket 302, in order to ensure the elasticity of the outlet end of the front socket 301 and the inlet end of the rear socket 302, it is preferable to use an elastic material. At the same time, this device transmits data or energy through the contact between the front socket 301 and the rear socket 302. Therefore, the front socket 301 and the rear socket 302 are made of an elastic metal material. The specific type of metal is determined according to actual needs, and this embodiment does not make a specific limitation. At the same time, since both the front socket 301 and the rear socket 302 are cylindrical structures, if the number of the first notch 303 and the second notch 304 is too small (one or two notches), they will not be opened by the pins or will be difficult to open, which will easily cause damage. Therefore, at least three of the first notches 303 and the second notches 304 are provided, preferably four notches, which are evenly distributed in a "cross shape".

[0042] In a more preferred embodiment, the front mounting panel of the connector plug is appropriately thickened, that is, there is a certain distance between the outlet end of the front socket 301 and the end face of the connector plug, which extends the inlet end of the mounting hole 9, and the side wall of the front socket 301 fits tightly with the side wall of the mounting hole 9, so that there will be no eccentricity. At the same time, the guiding distance of the front socket 301 to the pin is increased, which facilitates the insertion of the pin.

[0043] In a more preferred embodiment, the outer diameter of the outlet end of the front socket 301 is smaller than the inner diameter of the inlet end of the rear socket 302, and the outlet end of the front socket 301 is set with a first fillet 4.

[0044] In a more preferred embodiment, the front end socket 301 is provided with an anti-detachment structure 5 in the middle to prevent the coupling socket assembly 3 from falling off. The anti-detachment structure 5 is made of elastic material and the maximum diameter of the anti-detachment structure 5 is greater than the diameter of the inlet end of the front end socket 301.

[0045] Among them, the anti-detachment structure 5 is a spring clip, which can be a straight spring clip or an arched spring clip. The straight spring clip is as follows: Figure 2 and 3 As shown, one end of the straight spring is fixedly connected to the front socket 301, and the other end is suspended. The whole spring is set at an angle. Both ends of the arched spring are fixedly connected to the front socket 301, and the middle protrudes outward. In addition, three or more anti-detachment structures 5 are provided and are evenly distributed along the outer circumference of the front socket 301.

[0046] In a more preferred embodiment, a first protrusion 6 is provided on the outer side of the inlet end of the front end socket 301, and there is a gap between the first protrusion 6 and the anti-detachment structure 5. The first protrusion 6 is a ring-shaped strip structure.

[0047] In a more preferred embodiment, the inner side of the inlet end of the front socket 301 is provided with a second rounded corner 7.

[0048] In the prior art, the head of the pin is mostly hemispherical or conical. The size of the hemispherical shape, the inclination angle of the side of the conical head, and the size of the head all correspond to the socket. This embodiment does not make specific limitations. At the same time, the second rounded corner 7 makes the entrance end of the front socket 301 "trumpet-shaped" to guide the pin into the socket. The head of the pin is set to a smooth surface to reduce friction with the socket.

[0049] In a more preferred embodiment, the rear end socket 302 is provided with a limiting structure 8 for preventing the rear end socket 302 from moving toward the outlet end side of the rear end socket 302.

[0050] The limiting structure 8 is a boss structure that matches the structure of the limiting block 11 in the mounting hole 9. It is formed by cutting a plane, one or more grooves, etc. on the outer surface of the rear insertion hole 302. Preferably, a plane is cut so that the cross section of the rear insertion hole 302 is "D" shaped. The corresponding limiting block matches the "D" shaped structure, which can not only prevent the rear insertion hole from radially displacing, but also prevent the rear insertion hole from radially rotating.

[0051] In a more preferred embodiment, the connector plug 1 has a plurality of mounting holes 9 for mounting the coupling socket assembly 3, and the inner diameter of the mounting holes 9 is smaller than the maximum outer diameter of the anti-detachment structure 5.

[0052] The number of mounting holes 9 is determined according to actual needs, and this embodiment does not impose a specific limit; at the same time, the sum of the radius of the front insertion hole 301 and the thickness of the anti-detachment structure 5 is less than or equal to the radius of the mounting hole 9, that is, when the anti-detachment structure 5 is compressed, the front insertion hole 301 can be inserted into the mounting hole 9.

[0053] In a more preferred embodiment, a limiting ring 10 and a limiting block 11 are provided on the inner sidewall of the mounting hole 9. The limiting ring 10 is located between the first protrusion 6 and the anti-detachment structure 5 on the installed coupling socket assembly 3, and the limiting block 11 matches the limiting structure 8.

[0054] The limiting ring 10 is a circular strip structure that is fixedly connected to the inner wall of the mounting hole 9. The inner diameter of the limiting ring 10 is smaller than the outer diameter of the first protrusion 6 and the maximum diameter of the anti-detachment structure 5. At the same time, the radius of the limiting ring 10 is greater than or equal to the sum of the radius of the front insertion hole 301 and the thickness of the anti-detachment structure 5, so that the compressed anti-detachment structure 5 can pass through and the uncompressed anti-detachment structure 5 is limited. The size and shape of the limiting block 11 match the size and shape of the limiting structure 8. Therefore, the limiting block 11 is also set as a "D" shaped structure, which mutually restricts the limiting structure 8 to form radial and circumferential limiting.

[0055] In a more preferred embodiment, a connecting end cover 12 is rotatably connected to the connector plug 1. The connecting end cover 12 is coaxial with the connector plug 1. The inner surface of the connecting end cover 12 is provided with a plurality of second protrusions 13. The outer diameter surface of the connector socket 2 is provided with a plurality of spiral grooves 14. The spiral grooves 14 match and correspond one-to-one with the second protrusions 13.

[0056] The connection between the connecting end cap 12 and the connector plug 1 can be either threaded or swivel-shaped, with a swivel-shaped connection being preferred. This means the connecting end cap 12 is fitted onto the connector plug 1, and a limiting structure secures the connecting end cap 12 to the connector plug 1, preventing it from falling off. Simultaneously, the connecting end cap 12 can rotate freely in the circumferential direction, accelerating the docking speed. The number of second protrusions 13 is equal to the number of spiral grooves 14, preferably greater than or equal to three, ensuring connection stability. The depth of the spiral groove 14 is equal to the height of the second protrusion 13, ensuring no radial wobbling occurs when the connecting end cap 12 is tightened with the connector socket 2. The second protrusion 13 can be cylindrical or hemispherical, reducing friction with the sidewalls of the spiral groove 14. The two sides of the entrance to the spiral groove 14 are rounded, allowing the second protrusion 13 to more easily enter the spiral groove 14.

[0057] In a more preferred embodiment, the inner diameter of the connecting end cap 12 is larger than the outer diameter of the connector socket 2, and the inner diameter of the connector socket 2 is larger than the outer diameter of the connector plug 1.

[0058] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0059] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A mating structure of a quick plug-in connector, comprising a connector plug (1) and a connector socket (2), characterized in that, The connector plug (1) further comprises a coupling jack assembly (3) installed in the connector plug (1), the coupling jack assembly (3) comprises a front-end jack (301) and a rear-end jack (302), the front-end jack (301) is in a barrel type structure, and the diameter of the front-end jack (301) gradually decreases from the inlet end to the outlet end, a plurality of first notches (303) are formed on the side wall of the outlet end of the front-end jack (301), the inlet end of the rear-end jack (302) is in a barrel type structure, the diameter of the rear-end jack (302) gradually increases from the inlet end to the other end, a plurality of second notches (304) are formed on the side wall of the inlet end of the rear-end jack (302), the outer diameter of the outlet end of the front-end jack (301) is smaller than the inner diameter of the inlet end of the rear-end jack (302), and the inlet end of the rear-end jack (302) is sleeved outside the outlet end of the front-end jack (301).

2. The mating structure of a push-pull connector according to claim 1, wherein The corner of the outlet end of the front-end jack (301) is provided with a first round corner (4).

3. The mating structure of a push-pull connector according to claim 1, wherein The middle part of the front-end jack (301) is provided with an anti-falling structure (5) for preventing the coupling jack assembly (3) from falling off, the anti-falling structure (5) is made of an elastic material, and the maximum diameter of the anti-falling structure (5) is greater than the diameter of the inlet end of the front-end jack (301).

4. The mating structure of the quick plug-and-socket connector according to claim 3, wherein The outside of the inlet end of the front-end jack (301) is provided with a first protrusion (6), and there is a spacing between the first protrusion (6) and the anti-falling structure (5).

5. The mating structure of a push-pull connector according to claim 1, wherein The inside of the inlet end of the front-end jack (301) is provided with a second round corner (7).

6. The mating structure of a push-pull connector according to claim 4, wherein The rear-end jack (302) is provided with a limiting structure (8) for preventing the rear-end jack (302) from moving towards the outlet end of the rear-end jack (302).

7. The mating structure of a push-pull connector according to claim 6, wherein A plurality of mounting holes (9) for mounting the coupling jack assembly (3) are formed in the connector plug (1), and the inner diameter of the mounting hole (9) is smaller than the maximum outer diameter of the anti-falling structure (5).

8. The mating structure of a push-pull connector according to claim 7, wherein The inner side wall of the mounting hole (9) is provided with a limiting ring (10) and a limiting block (11), the limiting ring (10) is located between the first protrusion (6) and the anti-falling structure (5) on the coupling jack assembly (3) after installation, and the limiting block (11) is matched with the limiting structure (8).

9. The mating structure of a push-pull connector according to claim 1, wherein The connector plug (1) is further provided with a connecting end cover (12) rotationally connected with the connector plug (1), the connecting end cover (12) is coaxial with the connector plug (1), the inner side surface of the connecting end cover (12) is provided with a plurality of second protrusions (13), the outer diameter surface of the connector socket (2) is provided with a plurality of spiral grooves (14), the spiral grooves (14) are matched with and one-to-one correspond to the second protrusions (13).

10. The mating structure of a push-pull connector according to claim 9, wherein The inner diameter of the connecting end cover (12) is greater than the outer diameter of the connector socket (2), and the inner diameter of the connector socket (2) is greater than the outer diameter of the connector plug (1).

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