A tight-lock connector

Abstract

The application belongs to the technical field of cable connectors, and specifically discloses a locking connector, which comprises a cable, a connecting body, a connecting core body and a connecting shell, the cable comprises a wire core and a wire core sheath, the connecting body comprises a first connecting plate, the first connecting plate is penetrated by a first electrode plate, the first connecting plate is connected with a first outer threaded sleeve and a second outer threaded sleeve, the connecting shell is connected with the first outer threaded sleeve, the connecting shell is provided with a through hole, the connecting core body is integrally formed by a wire core connecting block and a sheath connecting sleeve, the wire core connecting block is slidingly inserted into the first outer threaded sleeve, the bottom end and the top end of the wire core connecting block are respectively provided with an electrode insertion slot and a wire core insertion slot, and the electrode insertion slot is communicated with the wire core insertion slot. The wire core connecting block and the sheath connecting sleeve are integrally formed, and the installation and dismounting of the connector can be completed through simple insertion and threaded connection, so that the installation and dismounting are more convenient, the overall stress of the connector is effectively improved, and the cable connection is more reliable.

Description

Technical Field

[0001] This invention belongs to the technical field of cable connectors, and specifically relates to a locking connector. Background Technology

[0002] The main function of cable locking connectors is to ensure the reliability, safety and long-term stability of cable connections, prevent the threaded connection of cables from loosening during vibration or long-term use, avoid poor contact due to wear, and reduce connection failures caused by external forces in high-vibration scenarios (such as power distribution cabinets, instruments and equipment) or outdoor environments through structural optimization.

[0003] Chinese invention patent CN1628400A discloses a cable connector for cables on a housing or panel, which connects cables. The cable connector has a screw-in threaded sleeve with a contact point inside the threaded sleeve. The cable connector has a core wire receptacle in which the core wires of the cable to be connected are fixed in the use position. After the core wire receptacle is inserted into the threaded sleeve, it contacts the contact point therein. The cable connector also has a clamping insert that surrounds the cable axially close to the core wire receptacle and axially fixes the receptacle in the threaded sleeve, and has a locking nut for simultaneously deforming the clamping insert radially and fixing the cable in the final use position when tightened onto the threaded sleeve. The core wire receptacle and the locking nut are separable and can be placed sequentially on the threaded sleeve, and a snap-fit ​​connection is provided on the threaded sleeve for axially fixing the core wire receptacle in a contact position.

[0004] While the aforementioned patents improve the reliability of cable connections to some extent, the numerous and independently designed components make installation inconvenient. Furthermore, the separate design of the core holder for securing the core and the clamping insert for securing the core sheath results in poor overall stress resistance, making the cable connection less reliable.

[0005] To address the issues of inconvenient installation and disassembly, and unreliable connection in existing connector technologies, it is necessary to improve the connector structure to resolve these problems. Summary of the Invention

[0006] The purpose of this invention is to provide a locking connector that integrates the core connector block and the sheath connector into a single unit, allowing for easy installation and disassembly via simple plug-in and threaded connections. This not only makes installation and disassembly more convenient but also effectively improves the overall stress resistance of the connector, making cable connections more reliable.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a locking connector, comprising a cable, a connecting body, a connecting core, and a connecting housing. The cable includes a wire core and a wire core sheath wrapped around the outside of the wire core. The connecting body includes a first connecting plate, through which a first electrode plate passes. A first external threaded sleeve and a second external threaded sleeve are respectively provided on both sides of the first connecting plate. The connecting housing has an internal thread adapted to the first external threaded sleeve and a through hole for the cable to pass through. The connecting core is integrally formed by a wire core connecting block and an elastic sheath connecting sleeve. The wire core connecting block is slidably inserted into the first external threaded sleeve. The bottom end of the wire core connecting block has an electrode slot for the first electrode plate to be inserted into, and the top end of the wire core connecting block has a wire core slot for the wire core to be inserted into. The electrode slot communicates with the wire core slot.

[0008] By adopting the above technical solution, the core connector and the sheath connector are integrally formed and directly inserted into the first external threaded sleeve. The cable connection is completed by connecting the housing to the first external threaded sleeve through a threaded connection. Under the pressure applied by the first external threaded sleeve to the sheath connector, the connection of the core and the connection of the core sheath are subjected to overall force, improving the reliability and ease of installation of the connector. Specifically:

[0009] Step 1, Connection Preparation

[0010] First, neatly cut off one end of the cable's core sheath to expose the core. Be careful not to damage the core during the cut. The specific cutting length should be determined based on the depth of the core slot.

[0011] The second step is to thread the wire cores together.

[0012] Remove the connector housing and connector core from the connector body, and pass the cable through the through hole. First, thread the connector housing onto the cable, and then insert the core into the core slot until the end of the core is against the deepest part of the core slot, so that the elastic sheathing sleeve wraps around the outside of the cable.

[0013] The third step is to connect the wire cores and the connector.

[0014] After aligning the electrode slot on the core connector with the first electrode plate, insert the core connector into the first external threaded sleeve. At the same time, insert the first electrode plate into the electrode slot and abut against the core. Finally, thread the connector housing onto the first external threaded sleeve. As the connector housing is gradually screwed in, it will continuously press against the elastic sheath connector, causing it to press against the core sheath, thereby fixing the cable and connector.

[0015] Step 4: Connect the connectors and equipment

[0016] The device is connected to the housing or wiring support structure via a second external thread, and then the device's wiring terminals are electrically connected to the first electrode plate.

[0017] To better realize the present invention, both the first connecting plate and the connecting housing are provided with a polygonal ring structure.

[0018] To better realize the present invention, the longitudinal section of the core slot is a J-shaped structure, including a first vertical part near the center of the core connecting block, a second vertical part away from the center of the core connecting block, and an arc-shaped part connecting the first vertical part and the second vertical part. The top end of the first vertical part is connected to the sheath connecting sleeve, and the length of the first vertical part is greater than the length of the second vertical part. The electrode slot is connected to the side of the second vertical part away from the first vertical part.

[0019] To better realize the present invention, a second electrode plate with a J-shaped longitudinal section and a C-shaped cross section is embedded in the core slot, and the second electrode plate is embedded on the side of the core slot close to the electrode slot.

[0020] To better realize the present invention, the first electrode plate is provided with a conductive end conforming to the second electrode plate and a wiring end away from the conductive end. The conductive end is located inside the first external threaded sleeve and is movably inserted into the electrode slot; the wiring end is located inside the second external threaded sleeve and is provided with a wiring hole.

[0021] To better realize the present invention, the second electrode plate is fixedly connected only to the inner wall of the first vertical part, and the rest of the plate is in sliding contact with the wire core slot.

[0022] To better realize the present invention, the inner surface of the electrode slot away from the center of the wire core connecting block is coplanar with the inner surface of the second vertical part away from the wire core connecting block.

[0023] To better realize the present invention, the foreskin connecting sleeve is composed of multiple wedge-shaped elastic blocks arranged at intervals along the circumference, and the inner wall of the connecting shell is provided with a conical pressing surface.

[0024] To better realize the present invention, the entrance ends of the electrode slot and the wire core slot are both tapered enlarged hole structures.

[0025] Beneficial effects:

[0026] This invention integrates the core connector and the sheath connector into a single unit, inserts it directly into the first external threaded sleeve, and then connects the cable to the first external threaded sleeve via a connecting shell thread. Under the pressure applied by the first external threaded sleeve to the sheath connector, the connection of the core and the connection of the core sheath are subjected to force as a whole, thereby improving the reliability and ease of installation of the connector. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the connector structure after wiring according to the present invention;

[0028] Figure 2 This is an exploded view of the connector of the present invention;

[0029] Figure 3 This is an exploded view of a portion of the structure of the present invention from one perspective;

[0030] Figure 4 This is an exploded view of a portion of the structure of the present invention from another perspective;

[0031] Figure 5 This is a longitudinal section view of the connecting body of the present invention;

[0032] Figure 6 This is a longitudinal section view of the connecting core of the present invention;

[0033] Figure 7 This is a longitudinal section view of the connecting housing and cable of the present invention.

[0034] In the diagram: 1. Cable; 101. Core wire; 102. Core wire sheath; 2. Connecting body; 201. First connecting plate; 202. First electrode plate; 2021. Conductive end; 2022. Terminal; 2023. Terminal hole; 203. First external threaded sleeve; 204. Second external threaded sleeve; 3. Connecting core body; 301. Core wire connecting block; 302. Sheathed connecting sleeve; 3021. Elastic block; 303. Electrode slot; 304. Core wire slot; 3041. First vertical part; 3042. Second vertical part; 3043. Arc-shaped part; 305. Second electrode plate; 4. Connecting housing; 401. Perforation; 402. Pressing surface; 403. Internal thread; 5. Polygonal ring structure. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example

[0037] like Figure 1 - Figure 7As shown, a locking connector includes a cable 1, a connecting body 2, a connecting core 3, and a connecting housing 4. The cable 1 includes a wire core 101 and a wire core sheath 102 wrapped around the outside of the wire core 101. The connecting body 2 includes a first connecting plate 201 through which a first electrode plate 202 passes. A first external threaded sleeve 203 and a second external threaded sleeve 204 are respectively provided on both sides of the first connecting plate 201. The connecting housing 4 is provided with an internal thread adapted to the first external threaded sleeve 203. 403, the connecting housing 4 is provided with a through hole 401 for the cable 1 to pass through, the connecting core 3 is integrally formed by the wire core connecting block 301 and the elastic sheath connecting sleeve 302, the wire core connecting block 301 is slidably inserted into the first external thread sleeve 203, the bottom end of the wire core connecting block 301 is provided with an electrode slot 303 for the first electrode plate 202 to be inserted, the top end of the wire core connecting block 301 is provided with a wire core slot 304 for the wire core 101 to be inserted, and the electrode slot 303 is connected to the wire core slot 304.

[0038] The working principle of this invention can be summarized as follows:

[0039] Step 1, Connection Preparation

[0040] First, neatly cut off one end of the wire core sheath 102 at one end of the cable 1 to expose the wire core 101. Do not damage the wire core 101 during the cutting process. The specific cutting length is determined according to the depth of the wire core slot 304.

[0041] The second step is to thread wire core 101 through.

[0042] Remove the connecting housing 4 and connecting core 3 from the connecting body 2, and pass the cable 1 through the through hole 401. First, connect the connecting housing 4 to the cable 1, and then insert the core 101 into the core slot 304 until the end of the core 101 is against the deepest part of the core slot 304, so that the elastic sheath connecting sleeve 302 wraps around the outside of the cable 1.

[0043] The third step is to connect wire core 101 and the locking connector.

[0044] After aligning the electrode slot 303 on the core connector 301 with the first electrode plate 202, the core connector 301 is inserted into the first external threaded sleeve 203. At the same time, the first electrode plate 202 is inserted into the electrode slot 303 and abuts against the core 101. Finally, the connecting housing 4 is threaded onto the first external threaded sleeve 203. As the connecting housing 4 is gradually screwed in, it will continuously press against the elastic sheath connecting sleeve 302, making it press against the core sheath 102, thereby fixing the cable 1 and the locking connector.

[0045] Fourth step, connect and tighten the connector and equipment.

[0046] The device is connected to the housing or wiring support structure via the second external threaded sleeve 204, and then the device's wiring terminal 2022 is electrically connected to the first electrode plate 202.

[0047] The wiring is now complete.

[0048] Preferably, both the first connecting plate 201 and the connecting housing 4 are provided with polygonal ring structures 5. To facilitate installation by operators, polygonal ring structures 5 are provided on the first connecting plate 201 and the connecting housing 4, which is more conducive to applying force. This polygonal ring structure can be designed as a hexagon similar to a nut, which is convenient for applying force and can reduce the amount of material used to a certain extent.

[0049] Preferably, the longitudinal section of the wire core slot 304 is J-shaped, including a first vertical portion 3041 near the center of the wire core connecting block 301, a second vertical portion 3042 away from the center of the wire core connecting block 301, and an arc-shaped portion 3043 connecting the first vertical portion 3041 and the second vertical portion 3042. The top end of the first vertical portion 3041 is connected to the sheath connecting sleeve 302, and the length of the first vertical portion 3041 is greater than the length of the second vertical portion 3042. The electrode slot 303 is connected to the side of the second vertical portion 3042 away from the first vertical portion 3041. The J-shaped wire core slot 304 can form an upward hook after the wire core 101 is inserted, further improving the stability of the connection of the wire core 101. After the wire core 101 is inserted, the first electrode plate 202 is inserted into the electrode slot 303, which facilitates the contact of the wire core 101 to achieve energization.

[0050] Preferably, a second electrode plate 305 with a J-shaped longitudinal section and a C-shaped cross section is embedded in the core slot 304, and the second electrode plate 305 is embedded on the side of the core slot 304 near the electrode slot 303. Normally, the material connecting the core 3 is made of insulating materials such as plastic. However, the end of the core 101 usually has a certain degree of sharpness. During repeated pulling and disassembly of the core 101, wear and tear on the material connecting the core 3 is inevitable, generating debris, which is very unsafe. Moreover, the end of the core 101 is easily jammed and cannot be smoothly inserted. Therefore, by embedding the second electrode plate 305 on the main wear surface of the core slot 304, the electrode plate, which is usually made of metal, is hard and not easily worn, thus improving the wear resistance of the core slot 304 and ensuring safe use.

[0051] Preferably, the first electrode plate 202 has a conductive end 2021 conforming to the second electrode plate 305 and a wiring end 2022 away from the conductive end 2021. The conductive end 2021 is located inside the first external threaded sleeve 203 and is movably inserted into the electrode slot 303; the wiring end 2022 is located inside the second external threaded sleeve 204 and has a wiring hole 2023. Since the conductive end 2021 of the first electrode plate 202 conforms to the second electrode plate 305, it can make full contact with the second electrode after the first electrode plate 202 is inserted into the electrode slot 303, ensuring the stability of the power supply of the cable 1.

[0052] Preferably, the second electrode plate 305 is fixedly connected only to the inner wall of the first vertical portion 3041, while the remaining portion slides in contact with the core slot 304. The inner surface of the electrode slot 303 away from the center of the core connecting block 301 is coplanar with the inner surface of the second vertical portion 3042 away from the core connecting block 301. Fixing the second electrode plate 305 to the first vertical portion 3041 ensures that the second electrode plate 305 remains stable during the insertion or removal of the core 101, thereby enhancing the reliability of the cable 1 connection. The remaining part slides in contact with the wire core slot 304, and the inner surface of the electrode slot 303 away from the center of the wire core connecting block 301 is coplanar with the inner surface of the second vertical part 3042 away from the wire core connecting block 301. This causes the first electrode plate 202 to be inserted into the electrode slot 303 and then press against the second electrode plate 305. The first electrode plate 202, the second electrode plate 305 and the wire core 101 will be tightly pressed into the second vertical part 3042, making the connection of the connecting core 3, the connecting body 2 and the cable 1 more integrated, and further enhancing the reliability of the cable 1 connection and the stability of the power supply.

[0053] Preferably, the sheath connecting sleeve 302 is formed by multiple wedge-shaped elastic blocks 3021 arranged circumferentially at intervals, and the inner wall of the connecting housing 4 is provided with a conical pressing surface 402. By setting multiple wedge-shaped elastic blocks 3021 arranged circumferentially at intervals, a certain amount of compression deformation space is provided, so that it can continuously press against the cable 1 during the screwing process of the connecting housing 4, thereby making the cable 1 stably connected.

[0054] Preferably, the inlet ends of both the electrode slot 303 and the wire core slot 304 are tapered enlarged hole structures. By setting the enlarged hole structure, it is beneficial to quickly align and insert the first electrode plate 202 and the wire core 101, thereby improving the ease of installation of the cable 1.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A locking connector, characterized in that, The cable (1) includes a cable (1), a connecting body (2), a connecting core (3), and a connecting housing (4). The cable (1) includes a wire core (101) and a wire core sheath (102) wrapped around the outside of the wire core (101). The connecting body (2) includes a first connecting plate (201) through which a first electrode plate (202) passes. A first external threaded sleeve (203) and a second external threaded sleeve (204) are respectively provided on both sides of the first connecting plate (201). The connecting housing (4) is provided with an inner sleeve adapted to the first external threaded sleeve (203). The connecting housing (4) is provided with a through hole (401) for the cable (1) to pass through. The connecting core (3) is integrally formed by a core connecting block (301) and an elastic sheath connecting sleeve (302). The core connecting block (301) is slidably inserted into the first external thread sleeve (203). The bottom end of the core connecting block (301) is provided with an electrode slot (303) for the first electrode plate (202) to be inserted. The top end of the core connecting block (301) is provided with a core slot (304) for the core (101) to be inserted. The longitudinal section of the wire core slot (304) is a J-shaped structure, including a first vertical part (3041) near the center of the wire core connecting block (301), a second vertical part (3042) away from the center of the wire core connecting block (301), and an arc-shaped part (3043) connecting the first vertical part (3041) and the second vertical part (3042). The top end of the first vertical part (3041) is connected to the sheath connecting sleeve (302), and the length of the first vertical part (3041) is greater than the length of the second vertical part (3042). The electrode slot (303) is connected to the side of the second vertical part (3042) away from the first vertical part (3041). The core slot (304) is embedded with a second electrode plate (305) having a J-shaped longitudinal section and a C-shaped cross section, and the second electrode plate (305) is embedded on the side of the core slot (304) near the electrode slot (303); The first electrode plate (202) is provided with a conductive end (2021) conforming to the second electrode plate (305) and a wiring end (2022) away from the conductive end (2021). The conductive end (2021) is located inside the first external threaded sleeve (203) and is movably inserted into the electrode slot (303). The wiring end (2022) is located inside the second external threaded sleeve (204) and is provided with a wiring hole (2023). The second electrode plate (305) is fixedly connected only to the inner wall of the first vertical part (3041), and the rest of the part is in sliding contact with the wire core slot (304); The inner surface of the electrode slot (303) away from the center of the wire core connecting block (301) is coplanar with the inner surface of the second vertical part (3042) away from the center of the wire core connecting block (301).

2. A locking connector according to claim 1, characterized in that, Both the first connecting plate (201) and the connecting housing (4) are provided with a polygonal ring structure (5).

3. A locking connector according to claim 1, characterized in that, The foreskin connecting sleeve (302) is composed of multiple wedge-shaped elastic blocks (3021) arranged circumferentially, and the inner wall of the connecting shell (4) is provided with a conical pressing surface (402).

4. A locking connector according to claim 1, characterized in that, The entrance ends of both the electrode slot (303) and the wire core slot (304) are tapered enlarged hole structures.

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