Industrial cable connector

Abstract

The invention relates to the technical field of connectors, in particular to an industrial cable connector, which comprises an inner sleeve, an outer sleeve, a connecting terminal and a transmission mechanism, and is characterized in that all wire cores of the same industrial cable are sleeved with the inner sleeve; the outer sleeve is jointly sleeved on the two industrial cables and the inner sleeve; the inner end of the connecting terminal is inserted into the inner sleeve and is sleeved on the wire core at the same time; the outer end of the connecting terminal is sleeved on a wire core with different length of another industrial cable; a plurality of elastic clamping pieces which are arranged along the circumferential direction are inserted into the outer end of the connecting terminal and are used for elastically clamping a wire core; the outer part of the inner end of each connecting terminal is sleeved with a threaded sleeve, and the threaded sleeve and the inner sleeve are in threaded fit; the transmission mechanism is used for driving all the screw sleeves to rotate; a plurality of clamping pieces are inserted between each threaded sleeve and the inner end of the connecting terminal, and the clamping pieces and the threaded sleeves are in stop fit and can slide in the radial direction of the inner sleeve, so that all wire cores can be connected at a time, and the connecting efficiency is improved.

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 misaligned connection method is widely used. By arranging the ends of the cores in a misaligned manner, 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 misaligned arrangement helps to ensure sufficient spacing between each strand of core, prevent short circuits between cores due to too close distance, 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 existing in the current connection process of industrial cables.

[0006] The above object is achieved by the following technical solutions: An industrial cable connector, which is configured to be able to connect two industrial cables. When the industrial cables are connected, multiple stranded cores are exposed. The multiple stranded 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 at the same time are sleeved on the cores 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, and 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 members are inserted into the outer ends of the connection terminals, and the multiple elastic clamping members are arranged in the circumferential direction and are configured to be able to elastically clamp the cores; a screw sleeve is sleeved on the outside of 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 be able to drive all the screw sleeves located in the same inner sleeve to rotate synchronously; multiple clamping members are inserted between each screw sleeve and the inner end of the connection terminal, and the multiple clamping members are arranged in the circumferential direction. The clamping members can form a stop fit with the screw sleeve and can slide along the radial direction of the inner sleeve.

[0007] 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 arranged on the outer peripheral wall of each screw sleeve, and 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 meshed with the internal gear ring.

[0008] Further, the outer peripheral shape of the internal gear ring is polygonal.

[0009] Further, a positioning support disc is sleeved on all the longer cores of the two industrial cables together, and the positioning support disc is located between the two inner sleeves.

[0010] Further, the number of the positioning support discs is two.

[0011] Further, an elastic member is connected between each positioning support disc and the inner sleeve.

[0012] Further, the elastic member is a spring.

[0013] Further, 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.

[0014] Further, the outer sleeve is a heat-shrinkable structure.

[0015] Further, the elastic clamping member and / or the clamping member is a strip structure and extends in a direction parallel to the axis of the inner sleeve.

[0016] The beneficial effects of the present invention are as follows: 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 drives 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 thread 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 all the cores of the same industrial cable to be connected simultaneously. It 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 sleeve and the inner sleeve to ensure the connection strength; then, align the shorter cores of one industrial cable with the longer cores of the other industrial cable, and then drive the two industrial cables 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 all the cores of the two industrial cables to be connected together simultaneously, which is both time-saving and labor-saving, and can also improve the connection efficiency; then, the outer sleeve is commonly sleeved on the two industrial cables and the inner sleeve to realize the connection between the two industrial cables.

[0017] Further, by providing the positioning support disc, during the process of connecting the two industrial cables, the positioning support disc can not only limit the cores, make 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, ensure the heat dissipation effect, prevent mechanical stress concentration, and reduce electromagnetic interference; in addition, the positioning support disc can also support the cores in the circumferential and axial directions, thereby improving the bending strength of the cores.

[0018] 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 plates are 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

[0019] Figure 1 FIG. Figure 2 is a perspective structural view of the industrial cable connector provided by an embodiment of the present invention and two industrial cables during assembly; Figure 3 FIG. Figure 4 is Figure 3 a cross-sectional view taken along the line A-A in Figure 5 is Figure 3 a cross-sectional view taken along the line B-B in Figure 6 FIG. Figure 7 is a perspective structural view of the inner sleeve of the industrial cable connector provided by an embodiment of the present invention; Figure 1 ; Figure 8 is a sectional structural view of the inner sleeve of the industrial cable connector provided by an embodiment of the present invention; Figure 2 ; Figure 9 FIG. Figure 10 is a perspective structural view of the connection terminal and the elastic clamping member of the industrial cable connector provided by an embodiment of the present invention during assembly; Figure 11 FIG. Figure 12 is a sectional structural view of the screw sleeve of the industrial cable connector provided by an embodiment of the present invention; Figure 13 FIG. Figure 14 Schematic three-dimensional structure diagram of the industrial cable that can be connected by the industrial cable connector provided in the embodiment of the present invention.

[0020] Wherein: 1. Inner sleeve; 101. First mounting hole; 102. Second mounting hole; 103. Ring groove; 104. Mounting ring; 1041. Limit groove; 105. First limiting part; 106. Second limiting part; 2. Connection terminal; 201. Deformation hole; 202. Third mounting hole; 203. Fourth mounting hole; 301. Inner gear ring; 302. Tooth convex; 4. Elastic clamping member; 5. Sleeve; 501. Ring conical surface; 6. Clamping member; 601. Wedge block; 6011. Wedge surface; 7. Positioning support disc; 701. Fifth mounting hole; 8. Spring; 9. Industrial cable; 901. Core wire. Specific implementation mode

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, 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.

[0022] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any 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 the terms "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 accompanying 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 therefore should not be construed as a limitation to the present invention.

[0023] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0024] 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.

[0025] 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.

[0026] As Figures 1 to 13 shown, the industrial cable connector is provided to include an inner sleeve 1, an outer sleeve, connection terminals 2 and a transmission mechanism. An inner sleeve 1 is commonly sleeved on all the cores 901 of each industrial cable 9; the outer sleeve is commonly sleeved on the two industrial cables 9 and the inner sleeve 1; the connection terminals 2 are arranged on the inner sleeve 1, and the number is equal to the number of cores 901. The inner ends of the connection terminals 2 are inserted into the inner sleeve 1, and at the same time are sleeved on the cores 901 and can form an electrical connection with the cores 901. The inner ends of all the connection terminals 2 are sleeved on the cores 901 of the two industrial cables 9 that are different in the circumferential direction. The outer ends of the connection terminals 2 are sleeved on the cores 901 of different lengths of another industrial cable 9 and form an electrical connection with the cores 901; multiple elastic clamping members 4 are inserted into the outer ends of the connection terminals 2. The multiple elastic clamping members 4 are arranged in the circumferential direction and are configured to be able to elastically clamp the 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 be able to drive all the screw sleeves 5 located in the same inner sleeve 1 to rotate synchronously; multiple clamping members 6 are inserted between each screw sleeve 5 and the inner end of the connection terminal 2. The multiple clamping members 6 are arranged in the circumferential direction. 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.

[0027] Specifically in this embodiment, taking the example that the inner end of the connection terminal 2 is sleeved on the shorter wire core 901 during connection, that is, four connection terminals 2 are provided on each inner sleeve 1. Eight first mounting holes 101 are drilled through the inner end face of the inner sleeve 1. The cross-sectional shape of the first mounting holes 101 is circular, and the eight first mounting holes 101 are evenly arranged in the circumferential direction. When the inner sleeve 1 is installed, it is sleeved on the eight wire cores 901 of the same industrial cable 9 through the first mounting holes 101.

[0028] 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 face 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 that of the first mounting holes 101. The second mounting holes 102 are arranged alternately in the circumferential direction and are coaxially arranged with the first mounting holes 101. When the shorter wire core 901 is installed, it is inserted into the second mounting holes 102, and when the connection terminal 2 is connected, its small end is inserted into the second mounting holes 102.

[0029] 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 prevent it from falling off.

[0030] To facilitate sleeving on the wire core 901, a third mounting hole 202 is coaxially opened on the small end face of the connection terminal 2, and a fourth mounting hole 203 is coaxially opened on the large end face of the connection terminal 2. When the connection terminal 2 is installed, it is sleeved on the shorter wire core 901 through the third mounting hole 202 and sleeved on the longer wire core 901 through the fourth mounting hole 203. The elastic clamping members 4 are inserted into the fourth mounting holes 203 during installation and are arranged on the inner peripheral wall of the fourth mounting holes 203. The multiple elastic clamping members 4 are evenly arranged in the circumferential direction.

[0031] To facilitate the installation of the screw sleeve 5, a ring groove 103 is provided outside each second installation hole 102. The ring groove 103 and the second installation hole 102 are coaxially arranged. The arrangement of the ring groove 103 enables the inner sleeve 1 to form an installation ring 104. When installing, the screw sleeve 5 is inserted into the ring groove 103 and threadedly sleeved on the installation ring 104. To facilitate the installation of the clamping member 6, a plurality of limiting grooves 1041 are provided on the circumferential side wall of the installation ring 104. The plurality of limiting grooves 1041 are evenly arranged in the circumferential direction. When installing, the clamping member 6 is inserted into the limiting grooves 1041 and can only slide in the radial direction under the restriction of the side walls of the limiting grooves 1041. To facilitate the stop cooperation between the screw sleeve 5 and the clamping member 6, a wedge block 601 is provided on the outer side wall of each clamping member 6. A wedge surface 6011 is provided on the wedge block 601. The wedge surface 6011 faces outward and is inclined in a direction parallel to the axis of the inner sleeve 1. A ring conical surface 501 is provided on the inner circumferential wall of the screw sleeve 5. The flaring direction of the ring conical surface 501 is the same as the inclination direction of the wedge surface 6011. The ring conical surface 501 can form a stop cooperation with the wedge surface 6011.

[0032] Further, 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. The internal gear ring 301 can rotate around its own axis; a plurality of tooth projections 302 are provided on the outer circumferential wall of each screw sleeve 5. The plurality of tooth projections 302 are evenly arranged in the circumferential direction. The tooth projections 302 extend in a direction parallel to the axis of the screw sleeve 5. The tooth projections 302 are engaged with the internal gear ring 301.

[0033] Specifically in this embodiment, to facilitate the installation of the internal gear ring 301, a first limiting portion 105 and a second limiting portion 106 are respectively and perpendicularly provided 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 installing, the internal gear ring 301 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 partially through the circumferential side wall of the inner sleeve 1, so as to expose the screw sleeve 5 and ensure that the internal gear ring 301 can be engaged with the tooth projections 302.

[0034] During the use process, first, the two inner sleeves 1 are respectively sleeved on the eight-strand wire cores 901 of the two industrial cables 9 exposed by the first installation holes 101, and the small ends of the four connection terminals 2 on one of the inner sleeves 1 are respectively sleeved on the four shorter-strand wire cores 901 of one of the industrial cables 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 wire cores 901 of the other industrial cable 9.

[0035] Then rotate the inner gear ring 301, and the inner gear ring 301 drives all the screw sleeves 5 on the same inner sleeve 1 to rotate synchronously through the meshing transmission between the inner gear ring 301 and the tooth protrusion 302. When the screw sleeve 5 rotates, it moves axially through the threaded cooperation between it and the mounting ring 104; as the screw sleeve 5 moves axially, its internal annular cone surface 501 and the wedge surface 6011 of the wedge block 601 on the clamping member 6 gradually fit together, and under the push of the annular cone surface 501, the clamping member 6 slides radially inward under the limitation of the limiting groove 1041, and the small end of the connecting terminal 2 is tightly clamped on the wire core 901, so that all the wire cores 901 of the same industrial cable 9 can be connected at the same time, which is not only simple to operate, but also can improve the connection efficiency, and can achieve self-locking through the threaded cooperation between the screw sleeve 5 and the inner sleeve 1 to ensure the connection strength.

[0036] Then align the shorter core 901 of one industrial cable 9 with the longer core 901 of the other industrial cable 9, and then push the two industrial cables 9 closer to each other through external force. In the process of the two industrial cables 9 approaching each other, the core 901 not clamped by the small end of the connecting terminal 2 is inserted into the fourth mounting hole 203 of the corresponding large end of the connecting terminal 2, and squeezes the elastic clamp 4. The elastic clamp 4 uses the embracing force generated by its own elastic deformation to form an adaptive clamping for the inserted core 901 according to Hooke's law; thereby, all the cores 901 of the two industrial cables 9 can be connected together at the same time, which saves time and effort and improves the connection efficiency.

[0037] Then the outer sleeve is sleeved on the two industrial cables 9 and the inner sleeve 1 to achieve the connection between the two industrial cables 9 .

[0038] In a further embodiment, in order to improve the convenience of rotating the inner gear ring 301, the outer circumference of the inner gear ring 301 is configured to be a polygon.

[0039] Specifically in this embodiment, the outer peripheral shape of the inner gear ring 301 is a regular hexagon.

[0040] In actual operation, the regular hexagonal profile can be adapted to common hexagonal 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 inner gear ring 301 due to local stress concentration, and effectively extending the service life of the inner gear ring 301.

[0041] Optionally, the first limiting portion 105 can be set as a regular hexagonal plate-shaped structure, and the diameter of the inscribed circle of the first limiting portion 105 is larger than the diameter of the inner sleeve 1. The first limiting portion 105 and the inner sleeve 1 are coaxially arranged, thereby ensuring that a step-shaped structure can be formed with the inner sleeve 1 and the appearance is also ensured. The second mounting hole 102 is opened on the first limiting portion 105.

[0042] Optionally, the second limiting portion 106 may be set as a disc-shaped structure, and the diameter of the second limiting portion 106 is larger 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 the aesthetics. The first mounting hole 101 is opened on the second limiting portion 106.

[0043] In some other embodiments, it is set that a positioning support disc 7 is commonly sleeved on all the longer cores 901 of two industrial cables 9, and the positioning support disc 7 is located between two inner sleeves 1.

[0044] Specifically in this embodiment, for the convenience of positioning the core 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 hole 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 two industrial cables 9 through the fifth mounting holes 701.

[0045] During the use process, when two industrial cables 9 are connected, the core 901 passes through the fifth mounting hole 701. The rigid structure of the positioning support disc 7 forms a physical limit for the core 901, effectively inhibiting the bending and relaxation of the core 901, facilitating the improvement of the smoothness when connecting the cores 901, and also being able to ensure that 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 core 901 in the circumferential and axial directions, thereby being able to improve the bending strength of the core 901.

[0046] 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 core 901 can be further improved.

[0047] In a further embodiment, an elastic member is connected between each positioning support disc 7 and the inner sleeve 1.

[0048] Specifically in this embodiment, the elastic member is a spring 8. When connected, the spring 8 is sleeved on all the longer cores 901 of 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.

[0049] 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.

[0050] 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.

[0051] In some other embodiments, to improve the stability when the inner end of the connection terminal 2 deforms, 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.

[0052] Specifically in this embodiment, the deformation hole 201 communicates with the third installation hole 202. In this way, 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 action of the same external force. According to the principle of elastic mechanics, 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 electrical connection reliability.

[0053] 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 directly act 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 axisymmetric characteristics during the deformation process, with its geometric center highly coinciding with the force center, effectively suppressing the bending deformation caused by eccentric loads.

[0054] In some other embodiments, the outer sleeve is a heat-shrinkable structure.

[0055] 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 cross-linked structure is formed between the molecular chains, and this structure endows it with unique memory effects and physical properties.

[0056] From the perspective of the installation process, the outer sleeve of the heat-shrinkable structure has a certain flexibility at room temperature, facilitating it to be sleeved outside the two industrial cables 9 and the inner sleeve 1. Its initial inner diameter is designed with sufficient installation allowance to ensure smooth pre-installation; 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 cross-linked molecular chains inside the material are activated by heat and begin to return to the original shrinkage 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 gas-free sealed structure.

[0057] 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 relative permittivity of air, which is prone to cause partial discharge, thereby accelerating 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.

[0058] 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-shrinkable 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.

[0059] 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.

[0060] Specifically in this embodiment, the elastic clamping member 4 can be arranged as a wavy structure, and both ends of the elastic clamping member 4 are fixed on the connection terminal 2.

[0061] During use, both the strip-shaped elastic clamping member 4 and the clamping member 6 can axially clamp the wire core 901, thereby being able to provide continuous and uniform pressure, ensuring both the stability of clamping and the stability of electrical contact; a plurality of elastic clamping members 4 and a plurality of clamping members 6 can simultaneously clamp the wire core 901 circumferentially, thereby forming an encircling constraint 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 relatively small. This uniform circumferential clamping not only enhances the mechanical connection strength but also effectively reduces the contact resistance, ensuring the high efficiency of electrical connection.

[0062] In other embodiments, the elastic clamping member 4 can also be arranged as an arc-shaped structure and is arranged with the opening facing outwards.

[0063] 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 wedges 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.

[0064] 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 arranged 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.

[0065] 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 the combinations of these technical features do not conflict, they should all be considered as the scope described in this specification.

[0066] 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 be able 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. 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 commonly sleeved on all the cores of each industrial cable. The outer sleeve is commonly sleeved on the two industrial cables and the inner sleeve. The connection terminals are arranged on the inner sleeve, and the number of the connection terminals is equal to the number of the cores. The inner ends of the connection 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 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 that are different in length and form an electrical connection with the cores. A plurality of elastic clamping members are inserted into the outer ends of the connection terminals. The plurality of elastic clamping members are arranged in the circumferential direction and are configured to be able to elastically clamp the cores. A screw sleeve is sleeved on the outside of the inner end of each connection terminal. The screw sleeve forms a threaded fit with the inner sleeve. The transmission mechanism is configured to be able 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 connection terminal. The plurality of clamping members are arranged in the circumferential direction. The clamping members can form a stop fit with the screw sleeve and can slide in the radial direction of the inner sleeve.

2. The industrial cable connector according to claim 1, characterized in that, 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. A plurality of tooth protrusions are arranged on the outer peripheral wall of each screw sleeve. The plurality of tooth protrusions are evenly arranged in the circumferential direction. The tooth protrusions extend in the direction parallel to the axis of the screw sleeve. The tooth protrusions are engaged with the internal gear ring.

3. The industrial cable connector according to claim 2, characterized in that, The outer peripheral shape of the internal gear ring is polygonal.

4. The industrial cable connector according to claim 1, characterized in that, A positioning support disk is commonly sleeved on all the cores with longer lengths of the two industrial cables. The positioning support disk is located between the two inner sleeves.

5. The industrial cable connector according to claim 4, characterized in that, The number of the positioning support disks is two.

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

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

8. The industrial cable connector according to claim 1, characterized in that, A plurality of deformation holes are arranged on the inner end of each connection terminal. The plurality of deformation holes are arranged in the circumferential direction.

9. The industrial cable connector according to claim 1, wherein, The outer sleeve is a heat-shrinkable structure.

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

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