Five-core butt joint plug

By introducing a retaining ring and snap-fit ​​structure into the five-pin plug, as well as a cable fastener and locking nut, the problem of the five-pin plug coming off due to external pulling is solved, achieving quick and stable connection and convenient disassembly, ensuring the stability of power transmission.

CN223638697UActive Publication Date: 2025-12-05NINGBO JINSANHU TECH CO LTD
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Patent Information

Application Number
CN202423231753.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-05
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing five-pin plug is prone to detachment due to external force after the male is inserted into the female, which affects the stable transmission of power and is inconvenient to connect and disconnect.

Method used

A five-core connector was designed, employing a retaining ring and a snap-fit ​​structure. The snap-fit ​​rotates by contacting the beveled surface of the snap-fit ​​with the beveled surface of the retaining ring, enabling a quick and secure connection between the male and female connector assemblies. The use of a cable clamp and a locking nut ensures the cable is securely clamped.

Benefits of technology

It enables quick and secure connection between the male and female plug components, preventing them from coming apart due to external pulling, and is easy to disassemble, preventing breakage at the wire solder joints after prolonged use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a five-core butt joint plug, which comprises a male plug assembly and a female plug assembly plugged on the male plug assembly, the male plug assembly comprises a sleeve and a shell sleeved outside the sleeve, five conductive cores are arranged inside the sleeve, the female plug assembly comprises a female plug body, and the female plug body is sleeved outside the sleeve. A conductive core is arranged in the female plug body, a conductive hole corresponding to the conductive core is formed in the female plug body, the conductive core can be inserted into the conductive hole, a fixing ring is further arranged on the female plug body, and a plurality of fixing assemblies for fixing the fixing ring are arranged on the inner wall of the shell. When a plug is connected, the inclined surface of the buckle is firstly contacted with the inclined surface of the fixing ring. As the male plug assembly is gradually inserted into the female plug assembly, the buckle is gradually clamped on the fixing ring due to the guiding effect of the inclined plane. According to the utility model, the rapid connection of the male plug assembly and the female plug assembly is realized, and the stability of the connection is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, concretely to a five -core butt joint plug. BACKGROUND

[0002] Five -core plug as a kind of electric wire connector, it is composed of five metal pins and jack, widely used in electric power tools, machine equipment and household appliance and the current safety transmission of electric appliance equipment.Five -core plug structure is divided into female head and male head two parts, female head inside is equipped with five jacks, male head outside is equipped with five pins, plug and jack are designed with corresponding sealing device.When plug is inserted into jack, the connection of electric appliance equipment can be realized by plugging operation, and then effective signal or power transmission is completed.However, the existing five -core plug is inserted into female head after male head, it is easy to cause male head and female head to separate due to external force pulling, affect the stable transmission of electric power.

[0003] In the prior art, for example, Chinese utility model patent (authorized announcement number CN216818837U) proposes a kind of five -core waterproof butt joint plug, including male core and female core for the butt joint of two cables, male core and female core are inserted and matched to form butt joint piece.The two ends of butt joint piece are provided with terminal stud for being connected with cable, and male screw sleeve and female screw sleeve are further sleeved on butt joint piece, to axially hold male core and female core.Male screw sleeve is fixed on the outer periphery of male core, and the inner wall of female screw sleeve is provided with inner peripheral convex ring, which cooperates with the outer peripheral convex ring of the outer wall of female core.When male screw sleeve and female screw sleeve are threadedly connected, the axial relative motion of female core and male core can be limited, to avoid male head and female head from separating due to external force pulling.

[0004] Although the stability of electric signal transmission is improved by the thread cooperation of male screw sleeve and female screw sleeve in the prior art, when male head and female head are connected, staff needs to rotate screw sleeve, so that the connection process is time-consuming and laborious.At the same time, when male head and female head need to be separated, there is also the problem of inconvenient operation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of five -core butt joint plug, realize the quick connection of male plug assembly and female plug assembly, also ensure the stability of connection.

[0006] To solve the prior art problems, the utility model provides a kind of five -core butt joint plug, including male plug assembly and female plug assembly inserted on male plug assembly, the male plug assembly includes sleeve and the shell of sleeveing in the outside of sleeve, the inside of sleeve is provided with five conductive conductive core, the female plug assembly includes female plug body, female plug body is internally provided with the conductive hole corresponding with conductive core, and conductive core can be inserted into conductive hole, the female plug body is also provided with fixed ring, and the inner wall of shell is provided with a plurality of fixed components for fixing fixed ring.

[0007] Preferably, the fixing assembly comprises a connecting block arranged on the inner wall of the shell, and a clasp clamped on the fixing ring, and a connecting shaft rotatably arranged between the clasp and the connecting block.

[0008] Preferably, the fixing assembly comprises a torsion spring sleeved on the connecting shaft, one end of the torsion spring being connected with the inner wall of the shell, and the other end of the torsion spring being connected with the clasp.

[0009] Preferably, a through slot is arranged on the shell and matched with the clasp, one end of the clasp extending to the outside of the shell through the through slot.

[0010] Preferably, one side of the fixing ring is arranged as an inclined surface, and the other end of the clasp is arranged as an inclined surface, when the inclined surface of the clasp contacts with the inclined surface of the fixing ring, the clasp rotates around the connecting shaft, and the clasp is clamped on the fixing ring.

[0011] Preferably, one end of the sleeve away from the conductive core is connected with a first wire, one end of the shell close to the first wire is provided with a first wire fixing device, the end of the first wire fixing device away from the shell is provided with a first elastic claw, the first wire fixing device is connected with a first locking nut, one end of the first locking nut is arranged as a circular truncated cone, when the first locking nut is screwed into the first wire fixing device, the first locking nut makes the first elastic claw contract to the center of the first wire fixing device to fix the first wire.

[0012] Preferably, one end of the female plug body is connected with a second wire, the female plug body is fixed with a second wire fixing device at a position close to the second wire, the end of the second wire fixing device away from the female plug body is provided with a second elastic claw, the second wire fixing device is connected with a second locking nut, one end of the second locking nut is arranged as a circular truncated cone, when the second locking nut is screwed into the second wire fixing device, the second locking nut makes the second elastic claw contract to the center of the second wire fixing device to fix the second wire.

[0013] Preferably, a limiting slot is arranged on one end of the female plug body along the length direction of the female plug body, and the inner wall of the sleeve is provided with a limiting piece in sliding cooperation with the limiting slot.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The female plug body is provided with a fixing ring, and one side of the fixing ring is arranged as an inclined surface. Meanwhile, one end of the clasp is also arranged as an inclined surface. When the male plug assembly is connected with the female plug assembly, the inclined surface of the clasp contacts with the inclined surface of the fixing ring, and the clasp rotates. With the further insertion of the female plug body, the clasp is clamped on the fixing ring, thereby realizing the quick and stable connection of the male plug assembly and the female plug assembly. Even if the male plug assembly and the female plug assembly are pulled by external force, they will not easily separate.

[0016] 2. When the male plug assembly and the female plug assembly need to be separated, the other end of the buckle is separated from the fixed ring by pressing one end of the buckle according to the lever away, at this time, the male plug assembly and the female plug assembly can be separated, and the convenient disassembly effect is realized.

[0017] 3. The first wire fixing device and the first locking nut are matched, the first wire fixing device and the first locking nut make the first elastic claw clamp the cable, and the second wire fixing device and the second locking nut are matched, the second wire fixing device and the second locking nut make the second elastic claw clamp the cable, so that the fracture of the welding position of the wire and the male plug assembly and the female plug assembly caused by long-time use is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a first perspective structural schematic diagram of a five-core butt joint plug.

[0019] Figure 2 It is a second overhead structural schematic diagram of a five-core butt joint plug.

[0020] Figure 3 It is a first explosion structural schematic diagram of a five-core butt joint plug.

[0021] Figure 4 It is a second explosion structural schematic diagram of a five-core butt joint plug.

[0022] Figure 5 It is a perspective structural schematic diagram of a male plug assembly of a five-core butt joint plug.

[0023] Figure 6 It is a structural schematic diagram of a female plug assembly of a five-core butt joint plug.

[0024] Figure 7 It is a sectional structural schematic diagram of a five-core butt joint plug.

[0025] Figure 8 It is a male plug assembly of a five-core butt joint plug. Figure 7 It is an enlarged structural schematic diagram of position A in the male plug assembly.

[0026] The reference signs in the drawing are as follows: 1, male plug assembly; 11, shell; 12, sleeve; 121, limiting piece; 13, conductive core; 14, first wire; 15, first wire fixing device; 151, first elastic claw; 16, first locking nut; 17, fixed assembly; 171, buckle; 172, connecting block; 173, torsional spring; 174, connecting shaft; 2, female plug assembly; 21, female plug body; 211, conductive hole; 212, fixed ring; 22, limiting groove; 23, second wire; 24, second wire fixing device; 241, second elastic claw; 25, second locking nut. DETAILED DESCRIPTION

[0027] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0028] Referring to Figures 1-8 The utility model provides: a kind of five-core butt joint plug, including male plug assembly 1 and the female plug assembly 2 of insertion in male plug assembly 1, male plug assembly 1 includes sleeve 12 and the shell 11 of sleeve 12 external sleeve, five conductive conductive core 13 are provided in sleeve 12 inside, sleeve 12 is located in the inside of shell 11, the carrier of conductive core 13, it is made of insulating material, and the core part of conductive core 13 male plug assembly 1, a total of five, respectively for transmission different electric energy or signal.Conductive core 13 is usually made of metal with good conductivity, such as copper or copper alloy, female plug assembly 2 includes female plug body 21, female plug body 21 is internally provided with the conductive hole 211 corresponding with conductive core 13, and conductive core 13 can be inserted into the conductive hole 211, and the conductive hole 211 is matched with the conductive core 13 of male plug assembly 1, when the both are inserted, conductive core 13 will be inserted into the conductive hole 211, and form electrical connection.Female plug body 21 is also provided with fixing ring 212, and a plurality of fixing components 17 for fixing fixing ring 212 are arranged on the inner wall of shell 11.

[0029] The conductive hole 211 of female plug assembly 2 is aligned with the conductive core 13 of male plug assembly 1, and then the female plug body 21 is inserted into the sleeve 12.In the process of insertion, the conductive core 13 will enter the conductive hole 211, and form electrical connection.

[0030] Referring to Figure 7 And Figure 8 As shown in the figure, the fixing component 17 includes a connecting block 172 arranged on the inner wall of the shell 11, and further includes a buckle 171 clamped on the fixing ring 212, and a connecting shaft 174 is rotatably arranged between the buckle 171 and the connecting block 172, and the fixing component 17 further includes a torsional spring 173 sleeved on the connecting shaft 174, one end of the torsional spring 173 is connected with the inner wall of the shell 11, the other end of the torsional spring 173 is connected with the buckle 171, and a through slot is formed in the shell 11 and matched with the buckle 171, one end of the buckle 171 passes through the through slot and extends to the outside of the shell 11.

[0031] In the process of inserting the female plug assembly 2, the fixing ring 212 will contact the buckle 171. With further insertion of the female plug assembly 2, the buckle 171 rotates, and at the same time, the torsional spring 173 stores energy. When the fixing ring 212 reaches its locking position, the torsional spring 173 releases energy, pushes the buckle 171 back to its original position, and clamps on the fixing ring 212, thereby locking the connection between the male plug assembly 1 and the female plug assembly 2.

[0032] One side of the fixed ring 212 is provided with an inclined surface, and the other end of the buckle 171 is provided with an inclined surface. When the inclined surface of the buckle 171 contacts the inclined surface of the fixed ring 212, the buckle 171 rotates around the connecting shaft 174, facilitating the clamping of the buckle 171 on the fixed ring 212.

[0033] When the male plug assembly 1 is docked with the female plug assembly 2, the inclined surface of the buckle 171 will contact the inclined surface of the fixed ring 212, causing the buckle 171 to rotate. With the further insertion of the female plug body 21, the buckle 171 will be firmly clamped on the fixed ring 212, thereby achieving the quick and stable connection of the male plug assembly 1 and the female plug assembly 2. Even if the male plug assembly 1 and the female plug assembly 2 are pulled by external force, the male plug assembly 1 and the female plug assembly 2 will not easily separate.

[0034] Reference Figure 5 As shown, the sleeve 12 is connected with the first wire 14 at one end away from the conductive core 13. The housing 11 is provided with the first wire fixing device 15 at one end close to the first wire 14. The first wire fixing device 15 is provided with the first elastic claw 151 at one end away from the housing 11. The first wire fixing device 15 is connected with the first locking nut 16. One end of the first locking nut 16 is provided in a circular truncated cone shape. When the first locking nut 16 is screwed onto the first wire fixing device 15, the first locking nut 16 causes the first elastic claw 151 to tighten towards the center of the first wire fixing device 15 to fix the first wire 14.

[0035] The first locking nut 16 is screwed onto the threaded portion of the first wire fixing device 15. As the first locking nut 16 rotates, its circular truncated cone-shaped end gradually contacts and exerts pressure on the first elastic claw 151. Under the pressure of the first locking nut 16, the first elastic claw 151 tightens towards the center of the first wire fixing device 15. Due to the elastic properties of the first elastic claw 151, the first elastic claw 151 tightly clamps the first wire 14, preventing it from loosening or falling off.

[0036] Reference Figure 6 As shown, the female plug body 21 is connected with the second wire 23 at one end. The female plug body 21 is fixed with the second wire fixing device 24 at a position close to the second wire 23. The second wire fixing device 24 is provided with the second elastic claw 241 at one end away from the female plug body 21. The second wire fixing device 24 is connected with the second locking nut 25. One end of the second locking nut 25 is provided in a circular truncated cone shape. When the second locking nut 25 is screwed onto the second wire fixing device 24, the second locking nut 25 causes the second elastic claw 241 to tighten towards the center of the second wire fixing device 24 to fix the second wire 23.

[0037] The second locking nut 25 is screwed onto the threaded portion of the second wire holder 24. As the second locking nut 25 is rotated, its circular platform-shaped end gradually contacts and exerts pressure on the second elastic claw 241. Under the pressure of the second locking nut 25, the second elastic claw 241 tightens towards the center of the second wire holder 24. Due to the elastic properties of the second elastic claw 241, the second elastic claw 241 tightly grips the second wire 23, preventing it from loosening or falling off.

[0038] The first wire holder 15 and the first locking nut 16 cooperate, and their action causes the first elastic claw 151 to grip the cable. Similarly, the second wire holder 24 and the second locking nut 25 cooperate, and their action causes the second elastic claw 241 to grip the cable, preventing the wires from breaking at the welded joints on the male plug assembly 1 and the female plug assembly 2 after long-term use.

[0039] Reference Figure 3 As shown, one end of the female plug body 21 is provided with a limiting slot 22 along its length direction, and the inner wall of the sleeve 12 is provided with a limiting piece 121 that slidably cooperates with the limiting slot 22.

[0040] Working principle: In use, first, the conductive core 13 is accurately inserted into the conductive hole 211 of the female plug body 21, and at the same time, the limiting piece 121 is ensured to be smoothly inserted into the limiting slot 22, thereby preventing the conductive core 13 from being inserted into the wrong position. As the female plug body 21 is gradually inserted into the inside of the sleeve 12, the inclined surface of the buckle 171 will contact the corresponding inclined surface of the fixing assembly 17, thereby causing the rotation of the buckle 171. With the continuous deepening of the female plug body 21, the buckle 171 will finally be firmly clamped on the fixing assembly 17, thereby realizing the quick and stable connection of the male plug assembly 1 and the female plug assembly 2. This design ensures that even if the male plug assembly 1 and the female plug assembly 2 are pulled by external force, they will not easily separate. In order to enhance the stability of the cable connection, the design adopts the cooperation mode of the first wire holder 15 and the first locking nut 16. Through their synergistic effect, the first elastic claw 151 can tightly grip the cable. Similarly, the cooperation of the second wire holder 24 and the second locking nut 25 also ensures the clamping of the second elastic claw 241 to the cable, thereby effectively avoiding the possible breakage problem of the wires at the welded joints on the male plug assembly 1 and the female plug assembly 2 after long-term use. When it is necessary to separate the male plug assembly 1 and the female plug assembly 2, the user only needs to simply press one end of the buckle 171. According to the principle of leverage, the other end of the buckle 171 will be separated from the fixing ring 212. At this time, the user can easily pull out the male plug assembly 1, realizing the quick disassembly of the two, greatly improving the convenience of use.

[0041] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A five-lead mating plug, characterized by: The utility model provides a male plug assembly (1) and female plug assembly (2) of splicing on male plug assembly (1), male plug assembly (1) includes sleeve (12) and the shell (11) of sleeve (12) outside sleeve (12) inside is provided with five conductive conductive core (13), female plug assembly (2) includes female plug body (21), female plug body (21) inside is provided with the conductive hole (211) corresponding with conductive core (13), and the conductive core (13) can be inserted into the conductive hole (211), female plug body (21) is further provided with fixed ring (212), and the inner wall of shell (11) is provided with a plurality of fixed assembly (17) for fixing fixed ring (212).

2. A five-socket mating plug according to claim 1, characterized in that: The fixed assembly (17) includes a connecting block (172) disposed on the inner wall of the shell (11), and further includes a buckle (171) clamped on the fixed ring (212), and a connecting shaft (174) rotatably disposed between the buckle (171) and the connecting block (172).

3. A five-socket mating plug according to claim 2, characterized in that: The fixed assembly (17) includes a torsion spring (173) sleeved on the connecting shaft (174), one end of the torsion spring (173) is connected with the inner wall of the shell (11), and the other end of the torsion spring (173) is connected with the buckle (171).

4. A five-socket mating plug according to claim 3, characterized in that: The shell (11) is provided with a through slot matched with the buckle (171), one end of the buckle (171) passes through the through slot and extends to the outside of the shell (11).

5. A five-socket mating plug according to claim 2, characterized in that: One side of the fixed ring (212) is provided as an inclined surface, and the other end of the buckle (171) is provided as an inclined surface, when the inclined surface of the buckle (171) contacts the inclined surface of the fixed ring (212), the buckle (171) rotates around the connecting shaft (174), which facilitates the clamping of the buckle (171) on the fixed ring (212).

6. A five-socket mating plug according to claim 1, characterized in that: The sleeve (12) is connected with a first wire (14) at one end away from the conductive core (13), the shell (11) is provided with a first wire fixing device (15) at one end close to the first wire (14), the first wire fixing device (15) is provided with a first elastic claw (151) at one end away from the shell (11), the first wire fixing device (15) is connected with a first locking nut (16), one end of the first locking nut (16) is provided as a circular truncated cone, when the first locking nut (16) is screwed into the first wire fixing device (15), the first locking nut (16) tightens the first elastic claw (151) to the center of the first wire fixing device (15) to fix the first wire (14).

7. A five-socket mating plug according to claim 1, characterized in that: One end of the female plug body (21) is connected with a second wire (23), a second wire fixing device (24) is fixed on the female plug body (21) near the second wire (23), one end of the second wire fixing device (24) is provided with a second elastic claw (241) away from the female plug body (21), the second wire fixing device (24) is connected with a second locking nut (25), one end of the second locking nut (25) is provided in the shape of a circular truncated cone, when the second locking nut (25) is screwed into the second wire fixing device (24), the second locking nut (25) makes the second elastic claw (241) contract towards the center of the second wire fixing device (24) to fix the second wire (23).

8. A five-socket mating plug according to claim 1, characterized in that: One end of the female plug body (21) is provided with a limiting groove (22) along the length direction, and the inner wall of the sleeve (12) is provided with a limiting piece (121) in sliding fit with the limiting groove (22).