Connecting line with plug

Abstract

The utility model discloses a connecting line with a plug, which comprises a cable and a plug body, the plug body is connected with the end part of the cable through a screwing mechanism, the screwing mechanism comprises a cylindrical fixed part with threads on the outer surface and a cap-shaped movable part with threads on the inner surface, the cap-shaped movable part is penetrated by the cable, one end of the cable is provided with a plugging structure, and the plugging structure is connected with the plug body. The plugging structure is composed of a large-diameter columnar plugging body and cutting planes on the two sides of the columnar plugging body, the cable is sleeved with a corrugated pipe sleeve, the inner side of the cylindrical fixing piece is provided with limiting planes attached to the cutting planes, two first contacts are installed at one end of the cable and electrically connected with a cable core in the cable, and the cable core is connected with the cylindrical fixing piece. A connecting plate is mounted on the inner side of the plug body, two second contacts are mounted in the connecting plate, and the second contacts are electrically connected with pins of the plug body; the utility model has the advantages of simple structure, strong stability, reasonable connection mode, good connection effect, long service life, modular design and low possibility of material fatigue.

Description

Technical Field

[0001] This utility model belongs to the field of plug and cable technology, and in particular relates to a connecting cable with a plug. Background Technology

[0002] Common plugs and connectors often use snap-fit ​​interfaces or integrated molding structures. Over long-term use, these are susceptible to damage from external pulling, leading to poor contact or even detachment. Damage necessitates complete replacement, resulting in high maintenance costs. Especially in scenarios with frequent plugging and unplugging, the connection between the plug and cable is prone to material fatigue. Repeated stress can cause micro-cracks, posing safety hazards. Furthermore, they are inconvenient to disassemble and reassemble, making it difficult to meet reliability requirements in various environments.

[0003] The existing plugs and connecting cables use a design where the metal wire core and the pins make direct contact. When plugged in and powered on, insufficient contact area can easily lead to localized overheating. After repeated plugging and unplugging, the metal wire may fatigue and break, causing fluctuations in contact resistance, which affects power transmission efficiency and equipment operation safety. At the same time, the existing cable sheaths are generally covered with fixed rubber or plastic. When bent, the stress is concentrated in the plug end area, which can easily cause the wire core to fatigue and break. Summary of the Invention

[0004] The purpose of this utility model is to provide a connector cable with a plug to solve the problems of poor connection effect, short service life, and metal fatigue and local overheating at the connection between the wire core and the plug in common plug and connector cable connection methods.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: it includes a cable and a plug body. The plug body is connected to the end of the cable through a tightening mechanism. The tightening mechanism includes a cylindrical fixing member with threads on the outer surface and a cap-shaped movable member with threads on the inner surface. The cap-shaped movable member is penetrated by the cable. One end of the cable is provided with a plug-in structure. The plug-in structure consists of a large-diameter cylindrical plug-in body and beveled surfaces on both sides of the cylindrical plug-in body. A corrugated sleeve is fitted on the outside of the cable. The diameter of the cylindrical plug-in body is larger than the diameter of the cable.

[0006] Furthermore, the inner side of the cylindrical fixing member is provided with a limiting plane that fits with the cut surface, and the outer surface of the cap-shaped movable member is fixed with several anti-slip strips.

[0007] Furthermore, one end of the cable is equipped with two first contacts, which are electrically connected to the wire core inside the cable.

[0008] Furthermore, a connecting plate is installed inside the plug body, and two second contacts are installed inside the connecting plate. The second contacts are electrically connected to the pins of the plug body.

[0009] Furthermore, the first contact protrudes from the end face of the columnar connector, and the second contact is recessed into the end face of the connecting plate. After the first contact and the second contact overlap, the circuit is connected. The connecting plate has a chamfered design on the outside of the second contact.

[0010] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:

[0011] 1. In this utility model, the screw engagement design of the tightening mechanism (the cylindrical fixing part and the cap-shaped moving part cooperate) achieves axial locking of the plug body and the cable, effectively preventing the plug from falling off due to external pulling. At the same time, the corrugated sleeve on the outside of the cable disperses bending stress through expansion and contraction deformation, significantly reducing the risk of wire breakage and greatly improving the service life compared with traditional connecting wires.

[0012] 2. In this utility model, a protruding first contact and a recessed second contact are interlocked, and the chamfered guide structure of the connecting plate is used to achieve quick and accurate alignment of the contacts, avoiding poor contact caused by misalignment; after the contacts overlap, axial pressure is applied by the tightening mechanism to form a tight electrical connection, ensuring the stability of high current transmission, while reducing insertion and removal wear.

[0013] 3. In this utility model, the chamfered surface of the plug-in structure cooperates with the limiting surface to limit the unique plug-in direction, avoiding contact misalignment or damage caused by user accidental rotation; the modular design allows for quick replacement of the plug body, which can be separated simply by loosening the cap-shaped movable part, without the need for special tools, adapting to multiple device scenarios and reducing user operating costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the tightening mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional view of the plug body structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the plug-in structure of this utility model.

[0018] In the diagram: 1-Cable, 2-Plug body, 3-Tightening mechanism, 4-Plug-in structure, 5-Corrugated sleeve;

[0019] 11-First contact, 21-Connecting plate, 22-Second contact, 31-Cylindrical fixing part, 32-Cap-shaped moving part, 33-Limiting plane, 41-Columnar plug-in body, 42-Cut plane. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Combination Figures 1 to 4 The connector cable shown includes a cable 1 and a plug body 2. The plug body 2 is connected to the end of the cable 1 through a tightening mechanism 3. The tightening mechanism 3 includes a cylindrical fixing member 31 with threads on the outer surface and a cap-shaped movable member 32 with threads on the inner surface. The cap-shaped movable member 32 is penetrated by the cable 1. One end of the cable 1 is provided with a plug-in structure 4. The plug-in structure 4 is composed of a large-diameter cylindrical plug body 41 and beveled surfaces 42 on both sides of the cylindrical plug body 41. A corrugated sleeve 5 is fitted on the outside of the cable 1. The diameter of the cylindrical plug body 41 is larger than the diameter of the cable 1.

[0022] The cylindrical fixing member 31 has a limiting plane 33 on its inner side that fits with the cut surface 42, and the cap-shaped movable member 32 has several anti-slip strips fixed on its outer surface.

[0023] Two first contacts 11 are installed at one end of the cable 1, and the first contacts 11 are electrically connected to the wire core inside the cable 1.

[0024] A connecting plate 21 is installed inside the plug body 2. Two second contacts 22 are installed inside the connecting plate 21. The second contacts 22 are electrically connected to the pins of the plug body 2.

[0025] The first contact 11 protrudes from the end face of the cylindrical plug body 41, and the second contact 22 is recessed into the end face of the connecting plate 21. After the first contact 11 and the second contact 22 are connected, the circuit is connected. The connecting plate 21 is designed with a chamfer on the outside of the second contact 22.

[0026] Working principle: During use, the cylindrical plug 41 at the end of the cable 1 is inserted into the cylindrical fixing member 31 of the plug body 2. The circumferential rotation is restricted by the fit between the beveled surface 42 and the limiting surface 33, ensuring that the insertion direction is unique. Then, the cap-shaped movable member 32 is rotated, and the plug body and the cable are gradually locked by the engagement of the internal and external threads, forming a stable physical connection. The corrugated sleeve 5 provides anti-bending protection. When the two first contacts 11 at the end of the cable are inserted into the connecting plate 21 of the plug body, they precisely overlap with the recessed second contacts 22. The chamfered design of the connecting plate 21 guides the plug body to be smoothly aligned and avoids contact offset. When the tightening mechanism is fully locked, the first contacts 11 and the second contacts 22 are in close contact, so that the circuit between the wire core inside the cable 1 and the plug pin is connected, realizing power transmission.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cord with plug, comprising a cable (1) and a plug body (2), characterized in that: The plug body (2) is connected with the cable (1) end through a screwing mechanism (3), the screwing mechanism (3) comprises a cylindrical fixed part (31) with threads on the outer surface and a cap-shaped movable part (32) with threads on the inner surface, the cap-shaped movable part (32) is penetrated by the cable (1), one end of the cable (1) is provided with a plug-in structure (4), the plug-in structure (4) is composed of a large-diameter columnar plug-in body (41) and the flat surfaces (42) on both sides of the columnar plug-in body (41), and a corrugated pipe sleeve (5) is arranged on the outer side of the cable (1).

2. The cord with plug of claim 1, wherein: The inner side of the cylindrical fixed part (31) is provided with a limiting plane (33) which is in close contact with the flat surface (42).

3. The cord with plug of claim 2, wherein: One end of the cable (1) is provided with two first contact points (11), and the first contact points (11) are electrically connected with the wire core inside the cable (1).

4. The cord with plug of claim 3, wherein: The inner side of the plug body (2) is provided with a connecting plate (21), the connecting plate (21) is provided with two second contact points (22) inside, and the second contact points (22) are electrically connected with the pins of the plug body (2).

5. The cord with plug of claim 4, wherein: The first contact points (11) protrude from the end face of the columnar plug-in body (41), the second contact points (22) are recessed from the end face of the connecting plate (21), the first contact points (11) and the second contact points (22) are electrically connected after being overlapped, and the connecting plate (21) is designed as an inverted bevel outside the second contact points (22).

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