Connector self-protection cable

Abstract

The invention discloses a connector self-protection cable, and relates to the technical field of cable protection, and the connector self-protection cable comprises a cable unit which comprises a first cable and a second cable, and the first cable and the second cable are in butt joint through a connector assembly; the protection unit comprises a first sleeve piece, a second sleeve piece, an adjusting sleeve ring and a locking sleeve ring, the first sleeve piece and the second sleeve piece are respectively sleeved outside the first cable and the second cable, the adjusting sleeve ring is connected with the first sleeve piece and the second sleeve piece, and the locking sleeve ring is movably installed outside the first sleeve piece and is movably clamped with the adjusting sleeve ring; the clamping unit comprises a first clamping ring, a second clamping ring and supporting wheels, the first clamping ring and the second clamping ring are connected outside the first sleeve piece and the second sleeve piece in a sleeving mode respectively, the supporting wheels are installed at the ends of the first sleeve piece and the second sleeve piece, and the first clamping ring and the second clamping ring control the supporting wheels on the two sides to clamp the outer wall of the cable respectively. The problem that a cable joint of an existing cable usually needs to bear repeated mechanical stress and is often loosened is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable protection, and in particular to a joint self-protecting cable. Background Art

[0002] Cable joint protection is a key technology to ensure stable operation in power systems and communication systems. With the development of science and technology, the design and manufacturing standards of cable joints are constantly improving to adapt to more complex and changing environmental conditions. Nevertheless, cable joints still face some challenges in practical applications, especially in the case of frequent bending, the problem of loose joints is particularly prominent.

[0003] In power and communication systems, cable connectors are often subject to repeated mechanical stress, especially in dynamic environments. Frequent bending may cause the mechanical fixtures at the connector connection to loosen, affecting the stability and electrical performance of the connector. This loosening may be caused by a variety of reasons, including incorrect installation, vibration and shock, insufficient or excessive torque, frequent plugging and unplugging, harsh environmental conditions, improper cable bending radius, connector quality issues, locking device failure, cable contraction and expansion, and aging and wear. Summary of the invention

[0004] In view of the problem that the cable joints of the above-mentioned existing cables usually need to withstand repeated mechanical stress and often become loose, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a self-protecting cable connector, which aims to maintain the stability of the cable connection at both ends and to ensure that the connector portion is protected from damage by external impact.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a joint self-protecting cable, comprising a cable unit, comprising a first cable and a second cable, wherein the first cable and the second cable are connected to each other through a joint assembly; a protection unit, comprising a first kit, a second kit, an adjustment ring and a locking ring, wherein the first kit and the second kit are respectively movably sleeved on the outside of the first cable and the second cable, the adjustment ring connects the first kit and the second kit, the locking ring is movably installed on the outside of the first kit and is movably engaged with the adjustment ring, and; a clamping unit, comprising a first clamping ring, a second clamping ring and a supporting wheel, wherein the first clamping ring and the second clamping ring are respectively sleeved on the outside of the first kit and the second kit, the supporting wheel is installed at the ends of the first kit and the second kit, and the first clamping ring and the second clamping ring respectively control the supporting wheels on both sides to clamp the outer walls of the first cable and the second cable.

[0007] As a preferred solution of the joint self-protecting cable of the present invention, wherein: the first kit includes a protective sleeve and end rings and an adjustment ring coaxially fixed at both ends thereof, the outer wall of the protective sleeve is provided with at least one group of perforation grooves equidistantly arranged, and docking grooves are also arranged between adjacent perforation grooves, and the docking grooves divide the adjustment ring in equal proportion.

[0008] As a preferred solution of the connector self-protecting cable of the present invention, wherein: the two side walls of the perforated groove parallel to the axis of the protective sleeve are symmetrically provided with embedded grooves, a snap-in tooth plate is embedded in the embedded groove, and a first spring is fixed between the snap-in tooth plate and the bottom of the embedded groove; the embedded groove is opened at one end of the perforated groove away from the adjusting ring.

[0009] As a preferred solution of the joint self-protecting cable of the present invention, wherein: a positioning groove is provided on the outer wall of the adjusting ring; retaining rings are fixedly connected to the outer walls at both ends of the adjusting ring, and a plug-in hole is provided in the retaining ring close to the end ring; at least one group of mounting blocks are equidistantly fixed on the inner wall of the end ring, and each group of mounting blocks is symmetrically arranged.

[0010] As a preferred solution of the joint self-protecting cable of the present invention, wherein: the second kit includes a connecting ring and a protective plug plate, the protective plug plate is vertically and equidistantly fixedly connected to one side of the connecting ring, the protective plug plate is arranged in a circle, and the protective plug plate can be plugged into the docking slide groove; at least one group of oblique push slide grooves are equidistantly provided on the outer wall of the protective plug plate, and a threaded ring is coaxially fixed on the side of the connecting ring away from the protective plug plate, and at least one group of mounting blocks are also equidistantly fixed on the inner wall of the threaded ring.

[0011] As a preferred solution of the joint self-protecting cable of the present invention, wherein: the oblique push slide includes a starting end and a terminating end, and the angle between the plane where the starting end and the terminating end are located and the plane where the connecting ring is located is an acute angle; the distance from the starting end to the connecting ring in the same group of the oblique push slides is greater than the distance from the terminating end to the connecting ring; the oblique push slides extend from the end of the protective plug plate to an end fixed to the connecting ring, wherein the terminating end in the previous group is always aligned with the starting end position of the next adjacent group.

[0012] As a preferred solution of the connector self-protecting cable of the present invention, wherein: the adjusting collar is equidistantly fixed with push columns on the circumferential inner wall, the adjusting collar is rotatably sleeved on the outside of the adjusting collar, and the push columns can slide in the positioning slide groove and the oblique push slide groove; the inner wall of the adjusting collar close to the end ring is provided with an internal plug-in lock groove, and at least one group of locking teeth are equidistantly fixed on the plug-in lock groove; the locking collar includes a ring body and an auxiliary block equidistantly fixed on its inner wall, the auxiliary block is slidably inserted into the perforated groove, and a second spring is fixedly connected between the auxiliary block and the retaining ring; the ring body is also equidistantly fixed with a plug-in tooth plate on one end close to the retaining ring, the plug-in tooth plate slides through the plug-in hole and engages with the locking tooth.

[0013] As a preferred solution of the joint self-protecting cable of the present invention, wherein: the first clamping ring includes an outer ring and an inner ring, and a fan-shaped block is connected between the outer ring and the inner ring; at least one group of beveled tooth blocks are fixedly connected to the radial side walls on both sides of the fan-shaped block, and the beveled tooth blocks are movably engaged with the engaging tooth plates; a slope ring is coaxially fixed on one end of the inner ring close to the end ring, the connecting surface between the inner ring and the slope ring is a slope, and the inner diameter of the slope ring is larger than the inner diameter of the inner ring.

[0014] As a preferred solution of the joint self-protecting cable of the present invention, wherein: the second clamping ring includes an outer rotating ring and an inner moving ring, the outer rotating ring is threadedly sleeved on the outside of the threaded ring, and the inner wall of the outer rotating ring away from the first set is fixed with a first mounting ring and a second mounting ring; the inner diameter of the first mounting ring is larger than the inner diameter of the second mounting ring, and a mounting groove is formed between the first mounting ring and the second mounting ring, and a ball groove is also provided at the bottom of the mounting groove; the inner moving ring can be placed in the mounting groove in cooperation with rotation, and a support sleeve is connected to the side end thereof, and balls are equidistantly rolled and embedded in the outer wall of the inner moving ring, and the balls roll in the ball groove; the inner wall of the inner moving ring is also equidistantly fixed with at least one group of control angle blocks, and each group of control angle blocks is symmetrically arranged.

[0015] As a preferred solution of the joint self-protecting cable of the present invention, wherein: the support wheel includes a support frame and a clamping roller, the clamping roller is rotatably connected to one end of the clamping roller, and the other end of the support frame is hinged to a symmetrically arranged mounting block; a hinge hole and an embedded hole are also opened in the middle of the support frame, and a control rod is also connected to the support frame connected to the mounting block on the threaded ring, one end of the control rod is hinged to the hinge hole, and the other end is hinged to the control angle block.

[0016] Beneficial effects of the present invention:

[0017] The first cable and the second cable at both ends are stably connected through the connector assembly, and the adjusting collar can control the protection range of the first and second collars to adapt to connectors of different lengths. The locking collar and the adjusting collar are quickly engaged, so the adjustment work can be completed quickly, thereby improving work efficiency.

[0018] The first clamping ring and the second clamping ring can respectively control the clamping force and clamping size of the support wheels at both ends, so as to facilitate the clamping and fixing of cables of different thicknesses; through the protection of the internal connector assembly by the protection unit, it can prevent the connector from loosening during the shaking and bending of the cable, thereby preventing connection failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the joint self-protecting cable of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the first set of parts of the connector self-protecting cable of the present invention.

[0022] Figure 3 This is a schematic diagram of the remaining structure of the first kit of the connector self-protecting cable of the present invention.

[0023] Figure 4 It is a schematic diagram of the second kit structure of the connector self-protecting cable of the present invention.

[0024] Figure 5 It is a schematic diagram of the oblique push slide structure of the joint self-protecting cable of the present invention.

[0025] Figure 6 It is a schematic diagram of the connection between the adjusting collar and the locking collar of the joint self-protecting cable of the present invention.

[0026] Figure 7 It is a schematic diagram of the first clamping ring structure of the self-protecting cable connector of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the second clamping ring of the self-protecting cable connector of the present invention.

[0028] Fig. 9 It is a schematic diagram of the support wheel structure of the joint self-protecting cable of the present invention.

[0029] Fig.10 It is a schematic diagram of the adjustment process of the joint self-protecting cable of the present invention. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0034] Example 1

[0035] Reference Figure 1 and Fig.10 , which is the first embodiment of the present invention, provides a connector self-protecting cable, which includes a cable unit 100, including a first cable 101 and a second cable 102, and the first cable 101 and the second cable 102 are connected through a connector assembly 103.

[0036] Among them, the connector assembly 103 can adopt existing technology, and the connector type can be a crimping connector, a bolted connector, a plug-in connector, etc. This embodiment preferably adopts a bolted connector.

[0037] The protection unit 200 includes a first kit 201, a second kit 202, an adjusting collar 203 and a locking collar 204. The first kit 201 and the second kit 202 are movably sleeved outside the first cable 101 and the second cable 102 respectively. The adjusting collar 203 connects the first kit 201 and the second kit 202. The locking collar 204 is movably installed outside the first kit 201 and movably engaged with the adjusting collar 203.

[0038] The first set 201 is movably sleeved on the outside of the first cable 101 , and the second set 202 is movably sleeved on the outside of the second cable 102 . The first set 201 and the second set 202 cooperate to form a protective cover to protect the connector assembly 103 .

[0039] During use, the first kit 201 and the second kit 202 can further adjust the coverage protection range according to the length of the selected protected joint. By rotating the adjustment ring 203, it can drive the second kit 202 to move and slide the second kit 202. When reaching the appropriate position, the locking ring 204 locks the adjustment ring 203, thereby fixing the protective cover formed by the first kit 201 and the second kit 202.

[0040] The clamping unit 300 includes a first clamping ring 301, a second clamping ring 302 and a support wheel 303. The first clamping ring 301 and the second clamping ring 302 are respectively sleeved on the outside of the first kit 201 and the second kit 202. The support wheel 303 is installed at the ends of the first kit 201 and the second kit 202. The first clamping ring 301 and the second clamping ring 302 respectively control the support wheels 303 on both sides to clamp the outer walls of the first cable 101 and the second cable 102.

[0041] The first clamping ring 301 and the second clamping ring 302 are respectively fixed to the two ends of the first set 201 and the second set 202. By adjusting the first clamping ring 301 and the second clamping ring 302, the support wheel 303 can be driven to clamp the first cable 101 and the second cable 102 inside.

[0042] During use, after the first kit 201 and the second kit 202 are fixedly clamped on the outside of the cable unit 100, the clamping points of the support wheels 303 on both sides are fixed end points. When the first cable 101 and the second cable 102 are twisted and bent due to shaking, the connector assembly 103 within the protection range of the first kit 201 and the second kit 202 remains in a straight state, and only the cables outside the protection unit 200 will bend, which can ensure that the connector assembly 103 is in a stable working environment.

[0043] Furthermore, the protective cover formed by the first set 201 and the second set 202 can prevent the joint assembly 103 from being impacted by external objects to a great extent, thereby increasing the service life of the joint assembly 103.

[0044] Example 2

[0045] Reference Figure 1 to Figure 7 and Fig.10, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the first kit 201 includes a protective sleeve 201a and end rings 201b and an adjustment ring 201c coaxially fixed at both ends thereof, the outer wall of the protective sleeve 201a is provided with at least one group of perforation grooves 201a-1 at equal intervals, and docking grooves 201a-2 are further provided between adjacent perforation grooves 201a-1. In this embodiment, the docking grooves 201a-2 and the perforation grooves 201a-1 are preferably provided with four groups, and the docking grooves 201a-2 divide the adjustment ring 201c in equal proportion.

[0046] After being divided, the adjusting ring 201 c forms four groups of annular rotating rings for connecting with the adjusting sleeve ring 203 .

[0047] On the two side walls of the perforated groove 201a-1 and parallel to the axis of the protective sleeve 201a, there are symmetrically provided with embedded grooves 201a-1a, and a snap-fit ​​tooth plate 201a-1b is embedded in the embedded groove 201a-1a. A first spring T1 is fixed between the snap-fit ​​tooth plate 201a-1b and the bottom of the embedded groove 201a-1a; the embedded groove 201a-1a is arranged at one end of the perforated groove 201a-1 away from the adjusting ring 201c.

[0048] Among them, under the elastic support of the first spring T1, the oblique teeth connected to the engaging tooth plate 201a-1b are pushed out from the embedded groove 201a-1a. When the engaging tooth plate 201a-1b is squeezed, the first spring T1 contracts, and the engaging tooth plate 201a-1b is then retracted into the embedded groove 201a-1a.

[0049] A positioning groove 201c-1 is provided on the outer wall of the adjusting ring 201c, and the positioning groove 201c-1 is located in the middle of the outer wall of the adjusting ring 201c; a retaining ring 201c-2 is fixedly connected to the outer walls at both ends of the adjusting ring 201c, and a plug-in hole 201c-2a is provided in the retaining ring 201c-2 close to the end ring 201b.

[0050] At least one set of mounting blocks 201b-1 are fixed to the inner wall of the end ring 201b at equal intervals, and each set of mounting blocks 201b-1 is symmetrically arranged.

[0051] The second set 202 includes a connecting ring 202a and a protective plug plate 202b. The protective plug plate 202b is vertically and equidistantly fixedly connected to one side of the connecting ring 202a. The protective plug plate 202b is arranged in a circle and can be plugged into the docking slot 201a-2.

[0052] The outer wall of the protective plug plate 202b is provided with at least one set of inclined push grooves 202b-1 at equal intervals, and a threaded ring 202c is coaxially fixed to the side of the connecting ring 202a away from the protective plug plate 202b, and at least one set of mounting blocks 201b-1 are also fixed to the inner wall of the threaded ring 202c at equal intervals.

[0053] The oblique push slot 202b-1 includes a starting end D1 and a terminating end D2, and the angle between the plane where the starting end D1 and the terminating end D2 are located and the plane where the connecting ring 202a is located is an acute angle.

[0054] The distance from the starting end D1 to the connecting ring 202a in the same group of oblique push slide grooves 202b-1 is greater than the distance from the ending end D2 to the connecting ring 202a.

[0055] The oblique push slots 202b-1 are arranged and extend from the end of the protective plug plate 202b to one end fixed to the connecting ring 202a, wherein the terminal end D2 in the previous group is always aligned with the starting end D1 of the next group adjacent thereto. Pushing posts 203a are fixed equidistantly on the inner wall of the adjusting collar 203. Preferably, there are eight pushing posts 203a, with two in each group. The adjusting collar 203 is rotatably sleeved outside the adjusting ring 201c, and the pushing posts 203a can slide in the positioning slots 201c-1 and the oblique push slots 202b-1.

[0056] During use, the adjusting ring 203 is rotated to push the column 203a from the starting end D1 into the oblique push slot 202b-1. Due to the inclined opening of the oblique push slot 202b-1, the pushing column 203a will squeeze the inner wall of the oblique push slot 202b-1, thereby pushing the protective plug plate 202b to move toward the first kit 201, further driving the second kit 202 to move as a whole.

[0057] Furthermore, when the push column 203a moves to the end end D2, it is aligned with the next group of inlets of the start end D1 on another protective plug plate 202b. Therefore, as the adjusting ring 203 continues to rotate, the second set 202 will also continue to move.

[0058] An inner wall of one end of the adjusting collar 203 close to the end ring 201b is provided with an inner locking groove 203b, and at least one set of locking teeth 203b-1 are fixed on the locking groove 203b at equal intervals.

[0059] The locking collar 204 includes a ring body 204a and auxiliary blocks 204b equidistantly fixed on its inner wall. The auxiliary blocks 204b are slidably inserted into the perforated groove 201a-1. A second spring T2 is also fixedly connected between the auxiliary block 204b and the retaining ring 201c-2.

[0060] An insertion tooth plate 204c is equidistantly fixed to one end of the ring body 204a close to the retaining ring 201c-2. The insertion tooth plate 204c slides through the insertion hole 201c-2a and engages with the locking tooth 203b-1.

[0061] During use, when the second spring T2 is naturally stretched, the plug-in tooth plate 204c is always engaged with the locking tooth 203b-1, thereby preventing the adjusting collar 203 from rotating.

[0062] Furthermore, if the position of the second set 202 is to be adjusted in the reverse direction, the ring body 204a is simply pulled away from the adjusting collar 203. At this time, the second spring T2 is straightened, the plug-in tooth plate 204c and the locking tooth 203b-1 are unlocked, and the adjusting collar 203 can be rotated in the reverse direction.

[0063] The remaining structures are the same as those of Example 1.

[0064] Example 3

[0065] Reference Figures 1 to 10 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that the first clamping ring 301 includes an outer ring 301a and an inner ring 301b, and a sector block 301c is connected between the outer ring 301a and the inner ring 301b.

[0066] At least one set of bevel gear blocks 301c-1 are fixedly connected to the radial side walls on both sides of the sector block 301c, and the bevel gear blocks 301c-1 are movably engaged with the engaging tooth plates 201a-1b.

[0067] During use, when the first clamping ring 301 moves toward the end ring 201b, the beveled tooth block 301c-1 and the beveled surface of the tooth block on the engaging tooth plate 201a-1b are pressed and slid relative to each other, and the engaging tooth plate 201a-1b is pushed into the embedded groove 201a-1a.

[0068] Furthermore, after the outer ring 301a is loosened and the overall position of the first clamping ring 301 remains unchanged, the bevel gear block 301c-1 can be engaged and fixed with the engaging gear plate 201a-1b, and the first clamping ring 301 cannot move further in the reverse direction.

[0069] A slope ring 301b-1 is coaxially fixed to one end of the inner ring 301b close to the end ring 201b. The connecting surface between the inner ring 301b and the slope ring 301b-1 is an inclined surface X. The inner diameter of the slope ring 301b-1 is larger than the inner diameter of the inner ring 301b.

[0070] The second clamping ring 302 includes an outer rotating ring 302a and an inner moving ring 302b. The outer rotating ring 302a is threadedly sleeved on the outside of the threaded ring 202c. The inner wall of the end of the outer rotating ring 302a away from the first set 201 is fixed with a first mounting ring 302a-1 and a second mounting ring 302a-2.

[0071] The inner diameter of the first mounting ring 302a-1 is greater than that of the second mounting ring 302a-2, and a mounting groove 302a-3 is formed between the first mounting ring 302a-1 and the second mounting ring 302a-2. A ball groove 302a-4 is also formed at the bottom of the mounting groove 302a-3.

[0072] The inner moving ring 302b can be rotated and placed in the installation groove 302a-3, and its side end is connected to the support sleeve 302b-1. The outer wall of the inner moving ring 302b is equidistantly embedded with balls 302b-2, and the balls 302b-2 roll in the ball groove 302a-4.

[0073] During use, the outer rotating ring 302a is threadedly sleeved on the threaded ring 202c. When the outer rotating ring 302a is rotated to move away from the threaded ring 202c, the inner moving ring 302b does not rotate with the outer rotating ring 302a and can only move laterally.

[0074] At least one set of control angle blocks 302b-3 are fixed to the inner wall of the inner moving ring 302b at equal intervals, and each set of control angle blocks 302b-3 is symmetrically arranged.

[0075] The support wheel 303 includes a support frame 303a and a clamping roller 303b. The clamping roller 303b is rotatably connected to one end of the clamping roller 303b, and the other end of the support frame 303a is hinged to a symmetrically arranged mounting block 201b-1.

[0076] When adjusting the support wheel 303 installed inside the end ring 201b, first push the first clamping ring 301 toward the end ring 201b, and the slope ring 301b-1 first pushes the outer wall of the support frame 303a, and then transforms into the push of the inclined surface X on the support frame 303a, and finally the push of the inner ring 301b on the support frame 303a. Each transformation of the pushing body will enable the support wheel 303 here to clamp thinner cables.

[0077] A hinge hole 303a-1 and an embedded hole 303a-2 are also opened in the middle of the support frame 303a. A control rod 303c is also connected to the support frame 303a connected to the mounting block 201b-1 on the threaded ring 202c. One end of the control rod 303c is hinged to the hinge hole 303a-1, and the other end is hinged to the control angle block 302b-3.

[0078] During use, when adjusting the support wheel 303 installed inside the threaded ring 202c, it is necessary to first rotate the outer rotating ring 302a to control its movement in the opposite direction away from the first kit 201. Under the limiting effect of the control rod 303c on the inner moving ring 302b, the inner moving ring 302b cannot rotate with the outer rotating ring 302a and can only move horizontally.

[0079] Furthermore, during the movement, the inner moving ring 302b will pull the support frame 303a through the control rod 303c, driving the four groups of support wheels 303 to synchronously clamp the middle cable, and cooperate with the four groups of support wheels 303 at the other end to complete the two-point positioning clamping, and transfer the force that may cause the wire bending to the first kit 201 and the second kit 202, thereby ensuring that the cable and connector assembly 103 between these two points will not bend due to external shaking.

[0080] The remaining structure is the same as that of Example 2.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A joint self-protecting cable, characterized in that: include, A cable unit (100) comprises a first cable (101) and a second cable (102), wherein the first cable (101) and the second cable (102) are butt-jointed via a connector assembly (103); The protection unit (200) comprises a first set (201), a second set (202), an adjusting collar (203) and a locking collar (204), wherein the first set (201) and the second set (202) are respectively movably sleeved outside a first cable (101) and a second cable (102), the adjusting collar (203) connects the first set (201) and the second set (202), the locking collar (204) is movably installed outside the first set (201) and movably engaged with the adjusting collar (203), and; The clamping unit (300) comprises a first clamping ring (301), a second clamping ring (302) and a supporting wheel (303); the first clamping ring (301) and the second clamping ring (302) are respectively sleeved on the outside of a first set (201) and a second set (202); the supporting wheel (303) is installed at the ends of the first set (201) and the second set (202); and the first clamping ring (301) and the second clamping ring (302) respectively control the supporting wheels (303) on both sides to clamp the outer walls of the first cable (101) and the second cable (102).

2. The connector self-protecting cable according to claim 1, characterized in that: The first set (201) comprises a protective sleeve (201a) and end rings (201b) and an adjustment ring (201c) coaxially fixed at both ends thereof, the outer wall of the protective sleeve (201a) is provided with at least one group of perforated grooves (201a-1) at equal intervals, and a docking groove (201a-2) is further provided between adjacent perforated grooves (201a-1), and the docking groove (201a-2) divides the adjustment ring (201c) in equal proportions.

3. The connector self-protecting cable according to claim 2, characterized in that: The perforated groove (201a-1) and the protective sleeve (201a) are symmetrically provided with inner grooves (201a-1a) on both side walls parallel to the axis, and a clamping tooth plate (201a-1b) is fitted and embedded in the inner groove (201a-1a), and a first spring (T1) is fixed between the clamping tooth plate (201a-1b) and the bottom of the inner groove (201a-1a); The embedded groove (201a-1a) is arranged at one end of the perforated groove (201a-1) away from the adjustment ring (201c).

4. The joint self-protecting cable according to claim 2 or 3, characterized in that: The outer wall of the adjusting ring (201c) is provided with a positioning slot (201c-1); the outer walls at both ends of the adjusting ring (201c) are also fixedly connected with retaining rings (201c-2); and a plug-in hole (201c-2a) is provided in the retaining ring (201c-2) on the side close to the end ring (201b); At least one group of mounting blocks (201b-1) are fixed at equal intervals on the inner wall of the end ring (201b), and each group of mounting blocks (201b-1) is symmetrically arranged.

5. The connector self-protecting cable according to claim 4, characterized in that: The second set (202) comprises a connecting ring (202a) and a protective plug plate (202b), wherein the protective plug plate (202b) is vertically and equidistantly fixedly connected to one side of the connecting ring (202a), the protective plug plate (202b) is arranged in a circular shape, and the protective plug plate (202b) can be plugged into the docking slide groove (201a-2); The outer wall of the protective plug plate (202b) is provided with at least one set of inclined push grooves (202b-1) at equal intervals, a threaded ring (202c) is coaxially fixed on the side of the connecting ring (202a) away from the protective plug plate (202b), and at least one set of mounting blocks (201b-1) are also fixed on the inner wall of the threaded ring (202c) at equal intervals.

6. The connector self-protecting cable according to claim 5, characterized in that: The oblique push slide groove (202b-1) comprises a starting end (D1) and a terminating end (D2), and the angle between the plane where the starting end (D1) and the terminating end (D2) are located and the plane where the connecting ring (202a) is located is an acute angle; The distance from the starting end (D1) to the connecting ring (202a) in the same group of the oblique push slide grooves (202b-1) is greater than the distance from the ending end (D2) to the connecting ring (202a); The oblique push slide grooves (202b-1) are arranged and extend from the end of the protective plug plate (202b) to an end fixed to the connecting ring (202a), wherein the terminal end (D2) in the previous group is always aligned with the starting end (D1) of the next adjacent group.

7. The joint self-protecting cable according to claim 5 or 6, characterized in that: The adjusting collar (203) has push posts (203a) fixed at equal intervals on the circumferential inner wall thereof. The adjusting collar (203) is rotatably sleeved on the outside of the adjusting ring (201c), and the push posts (203a) can slide in the positioning slide groove (201c-1) and the oblique push slide groove (202b-1). An inner wall of one end of the adjusting collar (203) close to the end ring (201b) is provided with an inner locking groove (203b), and at least one set of locking teeth (203b-1) are fixed at equal intervals on the locking groove (203b); The locking collar (204) comprises a ring body (204a) and auxiliary blocks (204b) equidistantly fixed on the inner wall thereof, the auxiliary blocks (204b) being slidably inserted into the perforated groove (201a-1), and a second spring (T2) being fixedly connected between the auxiliary blocks (204b) and the retaining ring (201c-2); An insertion tooth plate (204c) is also equidistantly fixed to one end of the ring body (204a) close to the retaining ring (201c-2); the insertion tooth plate (204c) slides through the insertion hole (201c-2a) and is engaged with the locking tooth (203b-1).

8. The connector self-protecting cable according to claim 7, characterized in that: The first clamping ring (301) comprises an outer ring (301a) and an inner ring (301b), and a sector block (301c) is connected between the outer ring (301a) and the inner ring (301b); At least one set of bevel gear blocks (301c-1) are fixedly connected to the radial side walls on both sides of the sector block (301c), and the bevel gear blocks (301c-1) are movably engaged with the engaging tooth plates (201a-1b); A slope ring (301b-1) is coaxially fixed to one end of the inner ring (301b) close to the end ring (201b); the connecting surface between the inner ring (301b) and the slope ring (301b-1) is an inclined surface (X); and the inner diameter of the slope ring (301b-1) is larger than the inner diameter of the inner ring (301b).

9. The joint self-protecting cable according to claim 8, characterized in that: The second clamping ring (302) comprises an outer rotating ring (302a) and an inner moving ring (302b), wherein the outer rotating ring (302a) is threadedly sleeved on the outside of the threaded ring (202c), and a first mounting ring (302a-1) and a second mounting ring (302a-2) are fixed to the inner wall of one end of the outer rotating ring (302a) away from the first set (201); The inner diameter of the first mounting ring (302a-1) is greater than the inner diameter of the second mounting ring (302a-2), and a mounting rotation groove (302a-3) is formed between the first mounting ring (302a-1) and the second mounting ring (302a-2), and a ball rotation groove (302a-4) is also provided at the bottom of the mounting rotation groove (302a-3); The inner moving ring (302b) can be rotated and placed in the installation rotation groove (302a-3), and its side end is connected to a support sleeve (302b-1). Balls (302b-2) are equidistantly embedded in the outer wall of the inner moving ring (302b), and the balls (302b-2) are rotated in the ball rotation groove (302a-4); The inner wall of the inner moving ring (302b) is also equidistantly fixed with at least one group of control corner blocks (302b-3), and each group of control corner blocks (302b-3) is symmetrically arranged.

10. The joint self-protecting cable according to claim 9, characterized in that: The support wheel (303) comprises a support frame (303a) and a clamping roller (303b), wherein the clamping roller (303b) is rotatably connected to one end of the clamping roller (303b), and the other end of the support frame (303a) is hinged to a symmetrically arranged mounting block (201b-1); A hinge hole (303a-1) and an embedded hole (303a-2) are also provided in the middle of the support frame (303a), and a control rod (303c) is also connected to the support frame (303a) connected to the mounting block (201b-1) on the threaded ring (202c), one end of the control rod (303c) is hinged to the hinge hole (303a-1), and the other end is hinged to the control angle block (302b-3).

Images