Locking connector

Abstract

The invention belongs to the technical field of cable connecting pieces, and particularly discloses a locking connector which comprises a cable, a connecting body, a connecting core and a connecting shell, the cable comprises a wire core and a wire core wrapper, the connecting body comprises a first connecting plate, a first electrode plate penetrates through the first connecting plate, the first connecting plate is connected with a first external thread sleeve and a second external thread sleeve, and the second external thread sleeve is connected with a second electrode plate. The connecting shell is connected to the first external thread sleeve, a through hole is formed in the connecting shell, the connecting core body is integrally formed by a wire core connecting block and a wrapping connecting sleeve, the wire core connecting block is inserted into the first external thread sleeve in a sliding mode, the bottom end and the top end of the wire core connecting block are provided with an electrode inserting groove and a wire core inserting groove respectively, and the electrode inserting groove is communicated with the wire core inserting groove. According to the cable connector, the cable core connecting block and the wrapping connecting sleeve are integrally formed, the connector can be mounted and dismounted through simple insertion and threaded connection, mounting and dismounting are more convenient, the overall stress of the connector is effectively improved, and cable connection is more reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of cable connectors, and in particular relates to a locking connector. Background Art

[0002] The main function of the cable locking connector is to ensure the reliability, safety, and long-term stability of cable connections. It prevents loosening of the threaded connection due to vibration or long-term use, avoids poor contact caused by wear, and reduces connection failure due to external forces through structural optimization in high-vibration scenarios (such as distribution cabinets, instruments and equipment) or outdoor environments.

[0003] Chinese invention patent CN1628400A discloses a cable connector for a cable on a housing or a wall panel, through which the cable is connected. The cable connector has a screw-in threaded sleeve with connection contacts arranged inside the threaded sleeve. The cable connector has a core wire receiving body, in which the core wires of the cable to be connected are fixed in the use position, and they contact the contacts arranged there after the core wire receiving body is inserted into the threaded sleeve. The cable connector also has a clamping insert that surrounds the cable axially close to the core wire receiving body and fixes the receiving body axially in the threaded sleeve, and has a locking nut for radially deforming the clamping insert and fixing the cable in the final use position when tightened onto the threaded sleeve, wherein the core wire receiving body and the locking nut can be separated and placed on the threaded sleeve one after another, and a snap connection is provided on the threaded sleeve for axially fixing the core wire receiving body in a contact position.

[0004] Although the above patent improves the reliability of cable connection to a certain extent, it is not convenient to install due to the large number of components and their independent settings. Moreover, the wire core container for fixing the wire core and the clamping insert for fixing the wire core sheath are set separately, and the overall force bearing capacity is poor, making the cable connection unreliable.

[0005] In order to solve the problems in the prior art that the connector is not convenient to install and disassemble, and is not reliable after connection, it is necessary to improve the structure of the connector, so as to solve the current technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a locking connector, which is formed by integrating the wire core connecting block and the sheath connecting sleeve, and can be installed and disassembled by simple plug-in and threaded connection. Not only is the installation and disassembly more convenient, but the overall force of the connector is also effectively improved, making the cable connection more reliable.

[0007] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a locking connector, comprising a cable, a connecting body, a connecting core and a connecting shell, the cable comprising a wire core and a wire core sheath wrapped around the outside of the wire core, the connecting body comprising a first connecting plate, the first connecting plate passing through a first electrode plate, a first external threaded sleeve and a second external threaded sleeve being respectively provided on both sides of the first connecting plate, the connecting shell being provided with an internal thread adapted for the first external threaded sleeve, the connecting shell being provided with a through hole for the cable to pass through, the connecting core being integrally formed by a wire core connecting block and an elastic sheath connecting sleeve, the wire core connecting block being slidably inserted into the first external threaded sleeve, the bottom end of the wire core connecting block being provided with an electrode slot for the first electrode plate to be inserted, the top end of the wire core connecting block being provided with a wire core slot for the wire core to be inserted, and the electrode slot being connected to the wire core slot.

[0008] By adopting the above technical solution, the wire core connection block and the sheath connection sleeve are set to be integrally formed, and after being directly plugged into the inside of the first externally threaded sleeve, the cable connection is completed by threading the connecting shell to the first externally threaded sleeve. Under the pressure of the first externally threaded sleeve on the sheath connection sleeve, the connection between the wire core and the connection between the wire core and the sheath are subjected to overall force, thereby improving the reliability and installation convenience of the connector. Specifically: Step 1: Connection Preparation First, neatly cut off the sheath of the core of the cable at one end to expose the core. The core must not be damaged during cutting. The specific cutting length is determined by the depth of the core slot.

[0009] Step 2: Thread the wires Remove the connecting shell and the connecting core from the connecting body, and pass the cable through the through-hole, so that the connecting shell is first connected to the cable, and then pass the wire core through the wire core slot until the end of the wire core is against the deepest part of the wire core slot, so that the elastic sheath connecting sleeve is wrapped around the outside of the cable.

[0010] Step 3: Connect the wire core and connector After aligning the electrode slot on the wire core connecting block with the first electrode plate, the wire core connecting block is embedded in the first external threaded sleeve. At the same time, the first electrode plate is inserted into the electrode slot and pressed against the wire core. Finally, the connecting shell is threadedly connected to the first external threaded sleeve. In the process of gradually screwing the connecting shell in, the connecting shell will continuously press against the elastic foreskin connecting sleeve so that it presses strongly against the wire core foreskin, thereby achieving the fixation of the cable and the connector.

[0011] Step 4: Connect the connector and the device The second external threaded sleeve is threadedly connected to the housing of the device or the wiring support structure, and then the wiring terminal of the device is electrically connected to the first electrode plate. In order to better implement the present invention, both the first connecting plate and the connecting shell are provided with polygonal ring structures.

[0012] In order to better implement the present invention, the longitudinal section of the wire core slot is a J-shaped structure, including a first vertical portion close to the center of the wire core connection block, a second vertical portion away from the center of the wire core connection block, and an arc-shaped portion connected to the first vertical portion and the second vertical portion. The top end of the first vertical portion is connected to the sheath connection sleeve, and the length of the first vertical portion is greater than the length of the second vertical portion. The electrode slot is connected to the side of the second vertical portion away from the first vertical portion.

[0013] To better implement 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 one side of the core slot close to the electrode slot.

[0014] To better implement the present invention, the first electrode plate is provided with a conductive end following the shape of the second electrode plate and a wiring terminal away from the conductive end. The conductive end is located in the first external threaded sleeve and can be movably inserted into the electrode slot; the wiring terminal is located in the second external threaded sleeve and is provided with a wiring hole.

[0015] To better implement the present invention, the second electrode plate is only fixedly connected to the inner wall of the first vertical portion, and the remaining portion is in sliding contact with the wire core slot.

[0016] To better implement the present invention, the inner surface of the electrode slot away from the center of the wire core connection block is coplanar with the inner surface of the second vertical portion away from the center of the wire core connection block.

[0017] In order to better implement the present invention, the foreskin connecting sleeve is formed by a plurality of wedge-shaped elastic blocks arranged at intervals along the circumferential direction, and the inner wall of the connecting shell is provided with a conical pressing surface.

[0018] In order to better implement the present invention, the entrance ends of the electrode slot and the wire core slot are both tapered expansion structures.

[0019] Beneficial effects: The present invention completes the cable connection by setting the wire core connecting block and the sheath connecting sleeve as an integral part, and directly inserting it into the inside of the first externally threaded sleeve, and then threading the connecting shell to the first externally threaded sleeve. Under the pressure of the first externally threaded sleeve on the sheath connecting sleeve, the connection between the wire core and the connection between the wire core and the sheath are subjected to overall force, thereby improving the reliability and installation convenience of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the connector after wiring of the present invention; Figure 2 This is an exploded structural diagram of the connector of the present invention; Figure 3 An exploded view of a partial structure of the present invention from one perspective; Figure 4 An exploded view of a portion of the structure of the present invention from another perspective; Figure 5 A longitudinal sectional view of the connecting body of the present invention; Figure 6 A longitudinal sectional view of the connecting core of the present invention; Figure 7 It is a longitudinal cross-sectional view of the connection housing and cable of the present invention.

[0021] In the figure: 1. cable; 101. core; 102. core sheath; 2. connecting body; 201. first connecting plate; 202. first electrode plate; 2021. conductive end; 2022. wiring end; 2023. wiring hole; 203. first external threaded sleeve; 204. second external threaded sleeve; 3. connecting core; 301. core connecting block; 302. sheath connecting sleeve; 3021. elastic block; 303. electrode slot; 304. core slot; 3041. first vertical portion; 3042. second vertical portion; 3043. arc-shaped portion; 305. second electrode plate; 4. connecting shell; 401. perforation; 402. pressing surface; 403. internal thread; 5. polygonal ring structure. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example like Figure 1 - Figure 7As shown, a locking connector includes a cable 1, a connecting body 2, a connecting core 3 and a connecting shell 4. The cable 1 includes a core 101 and a core sheath 102 wrapped around the outside of the core 101. The connecting body 2 includes a first connecting plate 201, the first connecting plate 201 is penetrated by a first electrode plate 202, and the first connecting plate 201 is provided with a first external thread sleeve 203 and a second external thread sleeve 204 on both sides. The connecting shell 4 is provided with an internal thread adapted to the first external thread sleeve 203. 403, the connecting shell 4 is provided with a through hole 401 for the cable 1 to pass through, the connecting core 3 is integrally formed by the core connection block 301 and the elastic foreskin connection sleeve 302, the core connection block 301 is slidably inserted into the first external threaded sleeve 203, the bottom end of the core connection block 301 is provided with an electrode slot 303 for the first electrode plate 202 to be inserted, the top end of the core connection block 301 is provided with a core slot 304 for the core 101 to be inserted, and the electrode slot 303 is connected to the core slot 304.

[0024] The working principle of the present invention is summarized as follows: Step 1: Connection Preparation First, neatly cut off one end of the core sheath 102 of the cable 1 to expose the core 101. The core 101 must not be damaged during cutting. The specific cutting length is determined according to the depth of the core slot 304.

[0025] Step 2: Connect the core 101 Remove the connecting shell 4 and the connecting core 3 from the connecting body 2, and pass the cable 1 through the through-hole 401, so that the connecting shell 4 is first connected to the cable 1, and then pass the core 101 through 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 is wrapped around the outside of the cable 1.

[0026] Step 3: Connect the wire core 101 and the locking connector After aligning the electrode slot 303 on the core connection block 301 with the first electrode plate 202, the core connection block 301 is embedded in the first external threaded sleeve 203. At the same time, the first electrode plate 202 is inserted into the electrode slot 303 and pressed against the core 101. Finally, the connecting shell 4 is threadedly connected to the first external threaded sleeve 203. In the process of gradually screwing in the connecting shell 4, the connecting shell 4 will continuously press against the elastic foreskin connecting sleeve 302 so that it presses strongly against the core foreskin 102, thereby achieving the fixation of the cable 1 and the locking connector.

[0027] Step 4: Connect the locking connector to the device The second external threaded sleeve 204 is threadedly connected to the housing of the device or the wiring support structure, and then the wiring terminal 2022 of the device is electrically connected to the first electrode plate 202.

[0028] This completes the wiring.

[0029] Preferably, the first connecting plate 201 and the connecting housing 4 are both provided with a polygonal ring structure 5. To facilitate installation by the operator, the polygonal ring structure 5 is provided on the first connecting plate 201 and the connecting housing 4, which is more conducive to exerting force. This polygonal ring structure can be designed to be a hexagonal shape similar to a nut, which is convenient for exerting force and can reduce material consumption to a certain extent.

[0030] Preferably, the longitudinal cross-section of the core slot 304 is J-shaped, comprising a first vertical portion 3041 near the center of the core connection block 301, a second vertical portion 3042 away from the center of the core connection block 301, and an arcuate portion 3043 connecting the first vertical portion 3041 and the second vertical portion 3042. The top of the first vertical portion 3041 is connected to the sheath connection 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 core slot 304 can form an upward bend after the core 101 is inserted, further improving the stability of the core 101 connection. After the core 101 is inserted, the first electrode plate 202 is inserted into the electrode slot 303, facilitating contact and electrical connection between the core 101 and the electrode.

[0031] Preferably, a second electrode plate 305 having 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 close to the electrode slot 303. Typically, the connecting core 3 is made of insulating materials such as plastic, and the ends of the cores 101 are usually sharp. Repeated pulling, pulling, and disassembling of the cores 101 inevitably causes wear and tear on the material of the connecting core 3, generating debris, which is very unsafe. Furthermore, the ends of the cores 101 are easily stuck 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 is usually made of a harder metal material that is less susceptible to wear, thereby improving the wear resistance of the core slot 304 and ensuring safe use.

[0032] Preferably, the first electrode plate 202 is provided with a conductive end 2021 that conforms to the second electrode plate 305 and a terminal 2022 that is distal to the conductive end 2021. The conductive end 2021 is located within the first externally threaded sleeve 203 and is removably inserted into the electrode slot 303. The terminal 2022 is located within the second externally threaded sleeve 204 and is provided with a wiring hole 2023. Because the conductive end 2021 of the first electrode plate 202 conforms to the second electrode plate 305, when the first electrode plate 202 is inserted into the electrode slot 303, it can fully contact the second electrode, thereby ensuring the stability of the power supply of the cable 1.

[0033] Preferably, the second electrode plate 305 is fixedly connected only to the inner wall of the first vertical portion 3041, with the remaining portion in sliding contact with the core slot 304. The inner surface of the electrode slot 303, away from the center of the core connection block 301, is coplanar with the inner surface of the second vertical portion 3042, away from the center of the core connection block 301. The fixed connection of 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 is in sliding contact with the core slot 304, and the inner surface of the electrode slot 303 away from the center of the core connection block 301 is coplanar with the inner surface of the second vertical portion 3042 away from the core connection block 301, so that after the first electrode plate 202 is inserted into the electrode slot 303, it will squeeze the second electrode plate 305, and then the first electrode plate 202, the second electrode plate 305 and the core 101 will be tightly squeezed in the second vertical portion 3042, so that after the connection core 3, the connection body 2 and the cable 1 are connected, the integrity is stronger, further enhancing the reliability of the connection of the cable 1 and the stability of the power supply.

[0034] Preferably, the sheath connector sleeve 302 is formed by a plurality of wedge-shaped elastic blocks 3021 arranged at intervals along the circumference, and the inner wall of the connecting housing 4 is provided with a tapered pressing surface 402. The arrangement of the plurality of wedge-shaped elastic blocks 3021 arranged at intervals along the circumference provides a certain amount of space for extrusion and deformation, allowing the connecting housing 4 to continuously press against the cable 1 during the screwing process, thereby ensuring a stable connection of the cable 1.

[0035] Preferably, the entrance ends of the electrode slot 303 and the core slot 304 are both tapered expansion structures. The expansion structure facilitates the rapid alignment and insertion of the first electrode plate 202 and the core 101, thereby improving the convenience of cable 1 installation.

[0036] Finally, it should be noted that the above description is only 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 shall be included in the scope of protection of the present invention.

Claims

1. A locking connector, characterized in that: The invention comprises a cable (1), a connecting body (2), a connecting core (3) and a connecting shell (4), wherein the cable (1) comprises a wire core (101) and a wire core sheath (102) wrapped around the outside of the wire core (101), the connecting body (2) comprises a first connecting plate (201), the first connecting plate (201) is penetrated by a first electrode plate (202), the first connecting plate (201) is provided with a first external thread sleeve (203) and a second external thread sleeve (204) on both sides, the connecting shell (4) is provided with an internal thread (403) adapted to the first external thread sleeve (203), and the connecting shell The body (4) is provided with a through hole (401) for the cable (1) to pass through, the connecting core body (3) is integrally formed by a wire core connection block (301) and an elastic sheath connection sleeve (302), the wire core connection block (301) is slidably inserted into the first external thread sleeve (203), the bottom end of the wire core connection 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 connection 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).

2. A locking connector according to claim 1, characterized in that: The first connecting plate (201) and the connecting shell (4) are both provided with a polygonal annular structure (5).

3. The locking connector according to claim 1, characterized in that: The longitudinal section of the core slot (304) is a J-shaped structure, comprising a first vertical portion (3041) close to the center of the core connection block (301), a second vertical portion (3042) away from the center of the core connection block (301), and an arcuate portion (3043) connected to the first vertical portion (3041) and the second vertical portion (3042), wherein the top end of the first vertical portion (3041) is connected to the sheath connection sleeve (302), and the length of the first vertical portion (3041) is greater than the length of the second vertical portion (3042), and the electrode slot (303) is connected to the side of the second vertical portion (3042) away from the first vertical portion (3041).

4. A locking connector according to claim 3, characterized in that: A second electrode plate (305) having 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 a side of the core slot (304) close to the electrode slot (303).

5. A locking connector according to claim 4, characterized in that: 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 in the first external threaded sleeve (203) and is movably inserted into the electrode slot (303); the wiring end (2022) is located in the second external threaded sleeve (204) and is provided with a wiring hole (2023).

6. The locking connector according to claim 4, characterized in that: The second electrode plate (305) is only fixedly connected to the inner wall of the first vertical portion (3041), and the remaining portion is in sliding contact with the wire core slot (304).

7. The locking connector according to claim 6, characterized in that: The inner surface of the electrode slot (303) away from the center of the wire core connection block (301) is coplanar with the inner surface of the second vertical portion (3042) away from the center of the wire core connection block (301).

8. The locking connector according to claim 1, characterized in that: The foreskin connecting sleeve (302) is formed by a plurality of wedge-shaped elastic blocks (3021) arranged at intervals along the circumferential direction, and the inner wall of the connecting shell (4) is provided with a conical pressing surface (402).

9. The locking connector according to claim 1, characterized in that: The entrance ends of the electrode slot (303) and the wire core slot (304) are both conical expansion structures.

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