An industrial cable connector

Abstract

The present invention relates to the technical field of connectors, and particularly relates to an industrial cable connector. The industrial cable connector includes an inner sleeve, an outer sleeve, connection terminals and a transmission mechanism. The inner sleeve is commonly sleeved on all the cores of the same industrial cable; the outer sleeve is commonly sleeved on two industrial cables and the inner sleeve; the inner ends of the connection terminals are inserted into the inner sleeve and are simultaneously sleeved on the cores; the outer ends of the connection terminals are sleeved on the cores with different lengths of another industrial cable; a plurality of circumferentially arranged elastic clamping members are inserted into the outer ends of the connection terminals and are used for elastically clamping the cores; a screw sleeve is sleeved on the outside of the inner end of each connection terminal, and the screw sleeve and the inner sleeve form a threaded fit; the transmission mechanism is used to drive all the screw sleeves to rotate; a plurality of clamping members are inserted between each screw sleeve and the inner end of the connection terminal, and the clamping members and the screw sleeve form a stop fit and can slide along the radial direction of the inner sleeve, so that all the cores can be connected at one time, improving the connection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to an industrial cable connector. Background Art

[0002] Industrial cables are designed to meet the stringent conditions in industrial environments. Their design fully considers the electrical and mechanical properties under complex working conditions, and has significant characteristics such as durability, reliability, and safety. They are an important part of modern industrial infrastructure.

[0003] Industrial cables usually adopt a multi-strand core structure. This design can not only improve the flexibility of the cable, facilitate installation and laying, but also enhance the current-carrying capacity and mechanical strength of the cable. In the connection method of multi-strand cores, the staggered connection method is widely used. By staggering the ends of the cores, the connection points of adjacent cores are staggered, which can effectively reduce the volume of the connection section and avoid local volume expansion caused by too concentrated connection points, affecting the overall layout and installation of the cable. At the same time, reasonable staggering helps to ensure sufficient spacing between each strand of the core, prevent short circuits due to too close distance between the cores, ensure that the insulation resistance value meets the electrical safety standards, and improve the electrical performance and safety of the connection part.

[0004] However, there are also some problems in the actual connection process of existing industrial cables: Currently, the connection method of industrial cable cores is mostly to connect them one by one. This operation mode not only takes time and effort, but also seriously reduces the connection efficiency. Summary of the Invention

[0005] Based on this, it is necessary to provide an industrial cable connector to address the problems of time-consuming, laborious, and low connection efficiency in the connection process of current industrial cables.

[0006] The above object is achieved by the following technical solutions:

[0007] An industrial cable connector configured to connect two industrial cables. When the industrial cables are connected, multiple strands of cores are exposed. The multiple strands of cores are evenly divided into two groups, and the two groups of cores are arranged alternately in the circumferential direction, and the lengths of the two groups of cores are not equal. The industrial cable connector includes an inner sleeve, an outer sleeve, connection terminals and a transmission mechanism. The inner sleeve is sleeved on all the cores of each industrial cable; the outer sleeve is sleeved on the two industrial cables and the inner sleeve together; the connection terminals are arranged on the inner sleeve, and the number is equal to the number of the cores. The inner ends of the connection terminals are inserted into the inner sleeve and sleeved on the cores at the same time, and can form an electrical connection with the cores. The inner ends of all the connection terminals are sleeved on the cores of the two industrial cables that are different in the circumferential direction. The outer ends of the connection terminals are sleeved on the cores of the other industrial cable with different lengths and form an electrical connection with the cores; multiple elastic clamping pieces are inserted into the outer ends of the connection terminals. The multiple elastic clamping pieces are arranged in the circumferential direction and are configured to elastically clamp the cores; a screw sleeve is sleeved outside the inner end of each connection terminal, and the screw sleeve forms a threaded fit with the inner sleeve; the transmission mechanism is configured to drive all the screw sleeves located in the same inner sleeve to rotate synchronously; multiple clamping pieces are inserted between each screw sleeve and the inner end of the connection terminal. The multiple clamping pieces are arranged in the circumferential direction. The clamping pieces can form a stop fit with the screw sleeve and can slide along the radial direction of the inner sleeve.

[0008] Further, the transmission mechanism includes an internal gear ring and tooth protrusions. The internal gear ring is sleeved on each inner sleeve, and the internal gear ring can rotate around its own axis; multiple tooth protrusions are provided on the outer peripheral wall of each screw sleeve. The multiple tooth protrusions are evenly arranged in the circumferential direction. The tooth protrusions extend in the direction parallel to the axis of the screw sleeve, and the tooth protrusions are engaged with the internal gear ring.

[0009] Further, the outer peripheral shape of the internal gear ring is polygonal.

[0010] Further, a positioning support disc is sleeved on all the longer cores of the two industrial cables together. The positioning support disc is located between the two inner sleeves.

[0011] Further, the number of the positioning support discs is two.

[0012] Further, an elastic member is connected between each positioning support disc and the inner sleeve.

[0013] Further, the elastic member is a spring.

[0014] Furthermore, a plurality of deformation holes are provided on the inner end of each of the connection terminals, and the plurality of deformation holes are arranged circumferentially.

[0015] Furthermore, the outer sleeve is of a heat-shrinkable structure.

[0016] Furthermore, the elastic clamping member and / or the clamping member is of a strip structure and extends in a direction parallel to the axis of the inner sleeve.

[0017] The beneficial effects of the present invention are as follows:

[0018] During the use of the industrial cable connector provided by the present invention, first, the two inner sleeves are respectively sleeved on all the cores of the two industrial cables, and the inner ends of all the connection terminals are respectively sleeved on the cores of the two industrial cables that are different circumferentially; then, the transmission mechanism is used to drive all the screw sleeves located on the same inner sleeve to rotate synchronously. The screw sleeve moves axially along the edge while rotating through the threaded fit with the inner sleeve, and then drives the clamping member to move inward in the radial direction of the inner sleeve through the stop fit with the clamping member, so that the clamping member clamps the inner end of the connection terminal on the core, thereby enabling the connection of all the cores of the same industrial cable at the same time. This not only has a simple operation, but also can improve the connection efficiency, and can achieve self-locking through the threaded fit between the screw sleeve and the inner sleeve to ensure the connection strength; then, the cores with shorter lengths of one of the industrial cables are aligned with the cores with longer lengths of the other industrial cable, and then the two industrial cables are driven to approach each other, so that the cores not clamped by the inner ends of the connection terminals are inserted into the outer ends of the connection terminals and are clamped by the elastic clamping members, thereby enabling the connection of all the cores of the two industrial cables together at the same time, which is both time-saving and labor-saving and can also improve the connection efficiency; then, the outer sleeves are jointly sleeved on the two industrial cables and the inner sleeves to achieve the connection between the two industrial cables.

[0019] Further, by providing the positioning support disk, during the process of connecting the two industrial cables, the positioning support disk can not only limit the cores, making the cores as straight as possible, which is beneficial to improving the smoothness when connecting the cores, but also ensure that the adjacent cores are arranged at intervals, ensuring the heat dissipation effect, preventing mechanical stress concentration, and reducing electromagnetic interference; in addition, the positioning support disk can also support the cores in the circumferential and axial directions, thereby improving the bending strength of the cores.

[0020] Further, by providing an elastic member, when the inner sleeve is sleeved on the industrial cable, under the elastic action of the elastic member, the positioning support plate can move to the end of the wire core to straighten the wire core, so that the whole wire core is in a straightened state as much as possible, ensuring that each wire core can be accurately butted when two industrial cables are butted; after the two industrial cables are butted, under the elastic action of the elastic member, the positioning support plate is located in the middle, and the two positioning support plates abut against each other, further improving the support effect on the circumferential and axial directions of the wire core and further enhancing the bending strength of the wire core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG.

[0022] Figure 2 is a three-dimensional structural schematic diagram of an industrial cable connector provided by an embodiment of the present invention and an industrial cable during assembly;

[0023] Figure 3 is a side view structural schematic diagram of an industrial cable connector provided by an embodiment of the present invention and an industrial cable during assembly;

[0024] Figure 4 is Figure 3 a sectional view taken along the line A-A in

[0025] Figure 5 is Figure 3 a sectional view taken along the line B-B in

[0026] Figure 6 is a three-dimensional structural schematic diagram of an inner sleeve of an industrial cable connector provided by an embodiment of the present invention;

[0027] Figure 7 is a sectional structural schematic Figure 1 ;

[0028] Figure 8 is a sectional structural schematic Figure 2 ;

[0029] Figure 9 is a three-dimensional structural schematic diagram of a connection terminal and an elastic clamping member of an industrial cable connector provided by an embodiment of the present invention during assembly;

[0030] Figure 10 is a sectional structural schematic diagram of a connection terminal and an elastic clamping member of an industrial cable connector provided by an embodiment of the present invention during assembly;

[0031] Figure 11 is a three-dimensional structural schematic diagram of a screw sleeve of an industrial cable connector provided by an embodiment of the present invention;

[0032] Figure 12 Schematic cross-sectional structure diagram of the screw sleeve of the industrial cable connector provided by the embodiment of the present invention;

[0033] Figure 13 Schematic three-dimensional structure diagram of the clamping member of the industrial cable connector provided by the embodiment of the present invention;

[0034] Figure 14 Schematic three-dimensional structure diagram of the industrial cable that can be connected by the industrial cable connector provided by the embodiment of the present invention.

[0035] Where:

[0036] 1. Inner sleeve; 101. First mounting hole; 102. Second mounting hole; 103. Ring groove; 104. Mounting ring; 1041. Limit groove; 105. First limiting portion; 106. Second limiting portion;

[0037] 2. Connection terminal; 201. Deformation hole; 202. Third mounting hole; 203. Fourth mounting hole;

[0038] 301. Inner tooth ring; 302. Tooth protrusion;

[0039] 4. Elastic clamping member;

[0040] 5. Screw sleeve; 501. Ring conical surface;

[0041] 6. Clamping member; 601. Wedge block; 601l. Wedge surface;

[0042] 7. Positioning support disc; 701. Fifth mounting hole;

[0043] 8. Spring;

[0044] 9. Industrial cable; 901. Core wire. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The serial numbers assigned to the components in this text, such as "first", "second", etc., are only used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "coupling" as used herein, unless otherwise specified, both include direct and indirect connection (coupling). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0047] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0048] An industrial cable connector provided by an embodiment of the present invention is configured to be able to connect two industrial cables 9. When the industrial cables 9 are connected, multiple strands of cores 901 are exposed. The multiple strands of cores 901 are evenly divided into two groups, and the two groups of cores 901 are arranged alternately in the circumferential direction, and the lengths of the two groups of cores 901 are not equal.

[0049] Taking the industrial cable 9 having eight strands of cores 901 as an example, as Figure 14 shown, the eight strands of cores 901 are evenly divided into two groups, and the two groups of cores 901 are arranged alternately in the circumferential direction, and the lengths of the two groups of cores 901 are not equal.

[0050] As Figures 1 to 13As shown in the figure, the industrial cable connector is provided with an inner sleeve 1, an outer sleeve, connection terminals 2 and a transmission mechanism. An inner sleeve 1 is sleeved on all the wire cores 901 of each industrial cable 9; the outer sleeve is sleeved on two industrial cables 9 and the inner sleeve 1 together; the connection terminals 2 are arranged on the inner sleeve 1, and the number of the connection terminals 2 is equal to the number of the wire cores 901. The inner ends of the connection terminals 2 are inserted into the inner sleeve 1, and at the same time, they are sleeved on the wire cores 901 and can form an electrical connection with the wire cores 901. The inner ends of all the connection terminals 2 are sleeved on the wire cores 901 of two industrial cables 9 with different circumferential positions, and the outer ends of the connection terminals 2 are sleeved on the wire cores 901 with different lengths of another industrial cable 9 and form an electrical connection with the wire cores 901; a plurality of elastic clamping members 4 are inserted into the outer ends of the connection terminals 2. The plurality of elastic clamping members 4 are arranged circumferentially and are configured to elastically clamp the wire cores 901; a screw sleeve 5 is sleeved on the outside of the inner end of each connection terminal 2, and the screw sleeve 5 forms a threaded fit with the inner sleeve 1; the transmission mechanism is configured to drive all the screw sleeves 5 located in the same inner sleeve 1 to rotate synchronously; a plurality of clamping members 6 are inserted between each screw sleeve 5 and the inner end of the connection terminal 2. The plurality of clamping members 6 are arranged circumferentially. The clamping members 6 can form a stop fit with the screw sleeve 5 and can slide along the radial direction of the inner sleeve 1.

[0051] Specifically, in this embodiment, taking the example that the inner end of the connection terminal 2 is sleeved on the wire core 901 with a shorter length during connection, that is, four connection terminals 2 are arranged on each inner sleeve 1. Eight first mounting holes 101 are penetrated on the inner end surface of the inner sleeve 1. The cross-sectional shape of the first mounting holes 101 is circular. The eight first mounting holes 101 are evenly arranged circumferentially. When the inner sleeve 1 is installed, it is sleeved on the eight-strand wire cores 901 of the same industrial cable 9 through the first mounting holes 101.

[0052] The connection terminal 2 is a T-shaped columnar structure. To facilitate the installation of the connection terminal 2, four second mounting holes 102 are opened on the outer end surface of the inner sleeve 1. The cross-sectional shape of the second mounting holes 102 is circular, and the hole diameter of the second mounting holes 102 is larger than the hole diameter of the first mounting holes 101. The second mounting holes 102 are arranged alternately circumferentially and are coaxially arranged with the first mounting holes 101. When installed, the wire core 901 with a shorter length is inserted into the second mounting holes 102, and the small end of the connection terminal 2 is inserted into the second mounting holes 102 during connection.

[0053] Optionally, the connection terminal 2 can be fixed on the inner sleeve 1 by friction during installation, or can be fixed on the inner sleeve 1 by glue bonding to avoid falling off.

[0054] For the convenience of sleeving on the wire core 901, a third mounting hole 202 is coaxially formed on the small end face of the connection terminal 2, and a fourth mounting hole 203 is coaxially formed on the large end face of the connection terminal 2. When the connection terminal 2 is installed, it is sleeved on the wire core 901 with a shorter length through the third mounting hole 202, and sleeved on the wire core 901 with a longer length through the fourth mounting hole 203. When the elastic clamping member 4 is installed, it is inserted into the fourth mounting hole 203 and arranged on the inner peripheral wall of the fourth mounting hole 203, and multiple elastic clamping members 4 are uniformly arranged along the circumferential direction.

[0055] For the convenience of installing the screw sleeve 5, a ring groove 103 is formed outside each second mounting hole 102, and the ring groove 103 and the second mounting hole 102 are coaxially arranged. The arrangement of the ring groove 103 makes the inner sleeve 1 form a mounting ring 104. When the screw sleeve 5 is installed, it is inserted into the ring groove 103 and threadedly sleeved on the mounting ring 104. For the convenience of installing the clamping member 6, multiple limiting grooves 1041 are formed on the circumferential side wall of the mounting ring 104, and multiple limiting grooves 1041 are uniformly arranged along the circumferential direction. When the clamping member 6 is installed, it is inserted into the limiting groove 1041 and can only slide along the radial direction under the restriction of the side wall of the limiting groove 1041. For the convenience of realizing the stop fit between the screw sleeve 5 and the clamping member 6, a wedge block 601 is arranged on the outer side wall of each clamping member 6, a wedge surface 6011 is arranged on the wedge block 601, the wedge surface 6011 faces outward and is inclined in the direction parallel to the axis of the inner sleeve 1. A ring conical surface 501 is arranged on the inner peripheral wall of the screw sleeve 5, the flaring direction of the ring conical surface 501 is consistent with the inclination direction of the wedge surface 6011, and the ring conical surface 501 can form a stop fit with the wedge surface 6011.

[0056] Furthermore, the transmission mechanism is arranged to include an internal gear ring 301 and a tooth projection 302. An internal gear ring 301 is sleeved on each inner sleeve 1, and the internal gear ring 301 can rotate around its own axis; multiple tooth projections 302 are arranged on the outer peripheral wall of each screw sleeve 5, and multiple tooth projections 302 are uniformly arranged along the circumferential direction. The tooth projections 302 extend in the direction parallel to the axis of the screw sleeve 5, and the tooth projections 302 are meshed with the internal gear ring 301.

[0057] Specifically in this embodiment, for the convenience of installing the internal gear ring 301, a first limiting portion 105 and a second limiting portion 106 are respectively vertically arranged on the two end faces of the inner sleeve 1. Step structures are formed between the first limiting portion 105, the second limiting portion 106 and the inner sleeve 1. When the internal gear ring 301 is installed, it is sleeved on the inner sleeve 1 and is simultaneously limited by the first limiting portion 105 and the second limiting portion 106, ensuring that the internal gear ring 301 can only rotate around its own axis. The ring groove 103 radially penetrates through a part of the circumferential side wall of the inner sleeve 1, so that the screw sleeve 5 can be exposed, ensuring that the internal gear ring 301 can be meshed with the tooth projection 302.

[0058] During use, first, the two inner sleeves 1 are respectively sleeved on the eight-strand cores 901 of the two industrial cables 9 exposed through the first mounting holes 101, and the small ends of the four connection terminals 2 on one inner sleeve 1 are respectively sleeved on the four shorter-strand cores 901 of one industrial cable 9, and the small ends of the four connection terminals 2 on the other inner sleeve 1 are respectively sleeved on the four shorter-strand cores 901 of the other industrial cable 9.

[0059] Then, rotate the internal gear ring 301. The internal gear ring 301 drives all the screw sleeves 5 on the same inner sleeve 1 to rotate synchronously through the meshing transmission with the tooth protrusions 302. When the screw sleeves 5 rotate, they move axially through the thread fit with the mounting ring 104; as the screw sleeves 5 move axially, the annular conical surface 501 inside them and the wedge surfaces 6011 of the wedges 601 on the clamping members 6 gradually fit together. Under the pushing of the annular conical surface 501, the clamping members 6 slide radially inward under the limitation of the limiting groove 1041, tightly clamping the small ends of the connection terminals 2 on the cores 901. Thus, all the cores 901 of the same industrial cable 9 can be connected simultaneously, which is not only simple to operate but also can improve the connection efficiency, and can achieve self-locking through the thread fit between the screw sleeves 5 and the inner sleeves 1, ensuring the connection strength.

[0060] Then, align the shorter-strand cores 901 of one industrial cable 9 with the longer-strand cores 901 of the other industrial cable 9, and then push the two industrial cables 9 closer to each other by an external force. During the process of the two industrial cables 9 approaching each other, the cores 901 not clamped by the small ends of the connection terminals 2 are inserted into the fourth mounting holes 203 at the large ends of the corresponding connection terminals 2, and squeeze the elastic clamping members 4. The elastic clamping members 4 use the clamping force generated by their own elastic deformation to form an adaptive clamping force on the inserted cores 901 according to Hooke's law; thus, all the cores 901 of the two industrial cables 9 can be connected together simultaneously, which is both time-saving and labor-saving and can also improve the connection efficiency.

[0061] Then, the outer sleeve is sleeved on the two industrial cables 9 and the inner sleeves 1 together to complete the connection between the two industrial cables 9.

[0062] In a further embodiment, to improve the simplicity of rotating the internal gear ring 301, the outer peripheral shape of the internal gear ring 301 is set to be polygonal.

[0063] Specifically in this embodiment, the outer peripheral shape of the internal gear ring 301 is a regular hexagon.

[0064] In actual operation, the regular hexagon profile can be adapted to common hex wrench tools to achieve standardized operation; at the same time, the regular distribution of its six equal-length sides and angles can ensure uniform force in the circumferential direction, avoiding deformation or damage of the internal gear ring 301 caused by local stress concentration, and effectively extending the service life of the internal gear ring 301.

[0065] Optionally, the first limiting portion 105 can be set as a regular hexagonal plate-like structure, and the diameter of the inscribed circle of the first limiting portion 105 is greater than the diameter of the inner sleeve 1. The first limiting portion 105 and the inner sleeve 1 are coaxially arranged, so as to ensure both the formation of a stepped structure with the inner sleeve 1 and good aesthetics. The second mounting hole 102 is opened on the first limiting portion 105.

[0066] Optionally, the second limiting portion 106 can be set as a disc-like structure, and the diameter of the second limiting portion 106 is greater than the diameter of the inner sleeve 1. The second limiting portion 106 and the inner sleeve 1 are coaxially arranged, so as to ensure both the formation of a stepped structure with the inner sleeve 1 and good aesthetics. The first mounting hole 101 is opened on the second limiting portion 106.

[0067] In some other embodiments, it is set that a positioning support disc 7 is sleeved on all the longer cores 901 of the two industrial cables 9, and the positioning support disc 7 is located between the two inner sleeves 1.

[0068] Specifically in this embodiment, for the convenience of positioning the cores 901, eight fifth mounting holes 701 are penetrated through the disc surface of the positioning support disc 7. The cross-sectional shape of the fifth mounting holes 701 is circular, and the eight fifth mounting holes 701 are evenly arranged along the circumferential direction. When the positioning support disc 7 is installed, it is sleeved on all the longer cores 901 of the two industrial cables 9 through the fifth mounting holes 701.

[0069] During the use process, when the two industrial cables 9 are connected, the cores 901 pass through the fifth mounting holes 701. The rigid structure of the positioning support disc 7 forms a physical limit on the cores 901, effectively suppressing the bending and relaxation of the cores 901, facilitating the smoothness when connecting the cores 901, and also ensuring that the adjacent cores 901 are arranged at intervals, ensuring the heat dissipation effect, preventing mechanical stress concentration, and reducing electromagnetic interference; in addition, the positioning support disc 7 can also support the cores 901 in the circumferential and axial directions, thereby improving the bending strength of the cores 901.

[0070] In a further embodiment, it is set that the number of the positioning support discs 7 is two. In this way, the effect of the positioning support disc 7 on the cores 901 can be further improved.

[0071] In a further embodiment, an elastic member is connected between each positioning support disc 7 and the inner sleeve 1.

[0072] Specifically in this embodiment, the elastic member is a spring 8. When connecting, the spring 8 is sleeved on all the longer cores 901 of the two industrial cables 9, and the outer end is fixedly arranged on the inner disc surface of the positioning support disc 7, and the inner end is fixedly arranged on the outer end surface of the first limiting portion 105.

[0073] During use, before the two industrial cables 9 are butted, the spring 8 is in an initial pre-compressed state, and the elastic restoring force generated by it pushes the positioning support disc 7 to move axially along the industrial cable 9 to the end of the wire core 901; this process follows Hooke's law (F = kx). By reasonably designing the elastic coefficient k and the pre-compression amount x of the spring 8, it is ensured that the generated thrust is sufficient to overcome the frictional force between the wire core 901 and the positioning support disc 7, so as to straighten the wire core 901, making the whole wire core 901 as straight as possible, ensuring that each wire core 901 can be accurately butted when the two industrial cables 9 are butted; after the two industrial cables 9 are butted, under the elastic action of the spring 8, the positioning support disc 7 is located in the middle, and the two positioning support discs 7 are in contact with each other, further improving the circumferential and axial support effects on the wire core 901 and further enhancing the bending strength of the wire core 901.

[0074] In addition, the dynamic adjustment characteristic of the spring 8 also has an adaptive compensation function: when the industrial cable 9 expands and contracts due to temperature changes, the spring 8 can automatically adjust the position of the positioning support disc 7 through elastic deformation, continuously maintaining the effective support for the wire core 901, avoiding connection loosening or insulation layer damage caused by mechanical stress concentration, and providing reliable mechanical guarantee for the connection system of the industrial cable 9.

[0075] In some other embodiments, in order to improve the stability when the inner end of the connection terminal 2 is deformed, a plurality of deformation holes 201 are provided on the inner end of each connection terminal 2, and the plurality of deformation holes 201 are arranged circumferentially.

[0076] Specifically in this embodiment, the deformation hole 201 is communicated with the third installation hole 202. Thus, when the clamping member 6 squeezes the inner end of the connection terminal 2, the material around the deformation hole 201 has a reduced cross-sectional area, and a local stress concentration effect is generated under the same external force. According to the principle of elasticity, this stress concentration prompts the material at the inner end of the connection terminal 2 to preferentially undergo controllable plastic deformation in the area of the deformation hole 201, avoiding structural failure caused by the disorderly diffusion of stress in other parts. At the same time, the communication structure forms an elastic deformation area between the deformation hole 201 and the third installation hole 202. When the wire core 901 is inserted into the third installation hole 202, this area can generate adaptive deformation, closely fitting the surface of the wire core 901, effectively filling the microscopic gap between the wire core 901 and the connection terminal 2, increasing the contact area, and thus significantly reducing the contact resistance and improving the reliability of the electrical connection.

[0077] In a further embodiment, the deformation hole 201 and the clamping member 6 are on the same straight line, and this straight line is parallel to the axis of the connecting terminal 2. In this way, when the clamping member 6 applies radial pressure, the pressure can act directly on the area of the deformation hole 201 along the shortest path, reducing the loss of force transmission. According to the principle of vector decomposition of force, the axially aligned layout ensures that the clamping force is evenly distributed on the inner end circumference of the connecting terminal 2, avoiding local excessive deformation or distortion caused by uneven force. In addition, this layout enables the connecting terminal 2 to maintain axial symmetry during the deformation process, with its geometric center highly coinciding with the force center, effectively suppressing the bending deformation caused by eccentric loads.

[0078] In some other embodiments, the outer sleeve is a heat-shrinkable structure.

[0079] Specifically in this embodiment, the outer sleeve of the heat-shrinkable structure is usually made of high molecular materials such as radiation-crosslinked polyolefins. After being irradiated with electron beams or γ-rays, a three-dimensional network crosslinked structure is formed between the molecular chains, and this structure endows it with unique memory effects and physical properties.

[0080] From the perspective of the installation process, the outer sleeve of the heat-shrinkable structure has a certain flexibility at room temperature, which is convenient for sleeving on the outside of the two industrial cables 9 and the inner sleeve 1. Its initial inner diameter is designed with sufficient installation allowance to ensure that the pre-installation can be successfully completed; when an external heat source (such as a hot air gun, a heating furnace, etc., with the heating temperature controlled between 120°C and 50°C) is applied to the outer sleeve of the heat-shrinkable structure, the crosslinked molecular chains inside the material are activated by heat and begin to return to the original contracted state, and then closely adhere to the surfaces of the industrial cable 9 and the inner sleeve 1. This shrinkage characteristic can effectively fill the tiny gaps between the industrial cable 9 and the outer sleeve, forming a gap-free sealing structure.

[0081] In terms of electrical performance, the close adhesion of the outer sleeve of the heat-shrinkable structure significantly reduces the partial discharge phenomenon caused by the existence of air gaps; according to the gas discharge theory, the electric field intensity in the air gap will be distorted due to the low dielectric constant of air, which is likely to cause partial discharge and thus accelerate the insulation aging; while the outer sleeve of the heat-shrinkable structure eliminates the air gap, making the electric field distribution more uniform, and its dielectric strength can reach 25 to 35 kV / mm, effectively improving the electrical insulation performance of the connection part of the industrial cable 9 and reducing the risk of insulation failure.

[0082] On the mechanical protection level, the tough protective layer formed after the outer sleeve of the heat-shrinkable structure shrinks can provide reliable mechanical buffering for the internal connection structure. When the industrial cable 9 is subjected to external mechanical impact or vibration, the elastic modulus of the heat-shrink outer sleeve (usually 100 to 300 MPa) enables it to absorb energy and evenly disperse the stress to the whole industrial cable 9, avoiding damage to the connection point caused by stress concentration.

[0083] In some other embodiments, the elastic clamping member 4 and / or the clamping member 6 are strip-shaped structures and extend in a direction parallel to the axis of the inner sleeve 1.

[0084] Specifically in this embodiment, the elastic clamping member 4 can be set as a wavy structure, and both ends of the elastic clamping member 4 are fixed on the connection terminal 2.

[0085] During use, both the strip-shaped elastic clamping member 4 and the clamping member 6 can axially clamp the wire core 901, thereby providing continuous and uniform pressure, ensuring both the stability of clamping and the stability of electrical contact; multiple elastic clamping members 4 and multiple clamping members 6 can simultaneously clamp the wire core 901 circumferentially, thereby forming an encircling restraint structure. When the screw sleeve 5 drives the clamping member 6 to radially contract or the elastic clamping member 4 generates an elastic restoring force due to the insertion of the wire core 901, each strip-shaped component acts synergistically to tightly wrap the wire core 901; according to the principle of force synthesis, the circumferentially distributed clamping forces form a resultant force at the center of the circle, causing the wire core 901 to be subjected to uniform radial pressure, ensuring that the deviation of the contact pressure distribution between the wire core 901 and the inner wall of the connection terminal 2 is small. This uniform circumferential clamping not only enhances the mechanical connection strength but also effectively reduces the contact resistance, ensuring the efficiency of the electrical connection.

[0086] In other embodiments, the elastic clamping member 4 can also be set as an arc-shaped structure and is arranged with the opening facing outward.

[0087] In other embodiments, to improve the stability when the screw sleeve 5 drives the clamping member 6 to move radially, the number of annular conical surfaces 501 is set to be multiple and is arranged at intervals in a direction parallel to the axis of the screw sleeve 5; the number of wedge blocks 601 is equal to the number of annular conical surfaces 501 and is arranged at intervals along the extending direction of the clamping member 6.

[0088] In other embodiments, to improve the clamping effect of the clamping member 6 on the wire core 901, the inner side wall of the clamping member 6 can be set as an arc surface. In this way, by reducing the contact area between the clamping member 6 and the connection terminal 2 and increasing the contact pressure between the clamping member 6 and the connection terminal 2, this high-pressure contact state can effectively prevent the clamping member 6 from sliding during the force application process, ensuring the stability and reliability of the clamping action.

[0089] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0090] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. An industrial cable connector, characterized in that: The industrial cable connector is configured to connect two industrial cables. When connected, the industrial cables are stripped of multiple cores, and the multiple cores are divided into two groups. The two groups of cores are alternately arranged along the circumference, and the lengths of the cores in the two groups are different. The industrial cable connector includes an inner sleeve, an outer sleeve, a connecting terminal and a transmission mechanism. All the cores of each industrial cable are commonly sleeved with the inner sleeve; the outer sleeve is commonly sleeved on the two industrial cables and the inner sleeve; the connecting terminals are provided on the inner sleeve, and the number is equal to the number of the cores. The inner ends of the connecting terminals are inserted into the inner sleeve and are simultaneously sleeved on the cores and can form an electrical connection with the cores. The inner ends of all the connecting terminals are sleeved on the two industrial cables. The outer end of the connecting terminal is sleeved on the wire cores of different lengths of another industrial cable along the circumferential direction, and forms an electrical connection with the wire cores; a plurality of elastic clamping members are inserted into the outer end of the connecting terminal, and the plurality of elastic clamping members are arranged along the circumferential direction and are configured to elastically clamp the wire cores; a screw sleeve is sleeved on the outer end of the inner end of each connecting terminal, and the screw sleeve and the inner sleeve form a threaded fit; the transmission mechanism is configured to drive all the screw sleeves located in the same inner sleeve to rotate synchronously; a plurality of clamping members are inserted between each screw sleeve and the inner end of the connecting terminal, and the plurality of clamping members are arranged along the circumferential direction, and the clamping members can form a stop fit with the screw sleeve and can slide along the radial direction of the inner sleeve; The transmission mechanism includes an inner gear ring and tooth protrusions. The inner gear ring is sleeved on each inner sleeve and can rotate around its own axis. A plurality of tooth protrusions are provided on the outer peripheral wall of each screw sleeve. The plurality of tooth protrusions are evenly arranged along the circumferential direction. The tooth protrusions extend in a direction parallel to the axial direction of the screw sleeve, and the tooth protrusions are meshed with the inner gear ring.

2. The industrial cable connector according to claim 1, characterized in that: The outer periphery of the inner gear ring is in a polygonal shape.

3. The industrial cable connector according to claim 1, characterized in that: All the longer cores of the two industrial cables are commonly sleeved with a positioning support plate, and the positioning support plate is located between the two inner sleeves.

4. The industrial cable connector according to claim 3, characterized in that: There are two positioning support plates.

5. The industrial cable connector according to claim 4, characterized in that: An elastic member is connected between each positioning support plate and the inner sleeve.

6. The industrial cable connector according to claim 5, characterized in that: The elastic member is a spring.

7. The industrial cable connector according to claim 1, characterized in that: A plurality of deformation holes are provided on the inner end of each connecting terminal, and the plurality of deformation holes are arranged along the circumferential direction.

8. The industrial cable connector according to claim 1, characterized in that: The outer shell is a heat shrinkable structure.

9. The industrial cable connector according to claim 1, characterized in that: The elastic clamping member and / or the clamping member is a strip-shaped structure and extends in a direction parallel to the axial direction of the inner sleeve.

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