CN217306900U - Straight-through cable joint - Google Patents

Abstract

The utility model relates to a straight-through cable joint, which comprises a conductive head, a semiconductor layer, an insulating layer and a protective layer; one end of the conductive head is bullet-shaped, the other end of the conductive head is provided with a first threaded hole, the outer ring of the conductive head is wrapped with a semiconductor layer, an annular convex part is arranged in the semiconductor layer, the convex part is embedded in a circular groove formed in the middle of the conductive head, the outer ring of the semiconductor layer is wrapped with an insulating layer, the outer ring of the insulating layer is wrapped with a protective layer, one end parts of the protective layer and the insulating layer are provided with telescopic holes, and the telescopic holes penetrate through the first threaded hole; one end of the conductive head is used as a male head, and the conductive head is inserted into the female head matched with the male head and is electrically connected with another cable, so that two disconnected cables form a continuous line, the electricity safety and reliability are ensured to be low, and accidents such as creepage of a high-voltage current surface, insulation breakdown and the like are avoided.

Description

Straight-through cable joint

Technical Field

The utility model relates to a cable joint field, in particular to through cable joint.

Background

The cable joint is also called as a cable head, after the cable is laid, two cables are electrically connected together to form a continuous circuit, and the middle connecting point is the cable joint used and has the functions of water resistance, dust resistance and vibration resistance.

In the process of implementing the present invention, the inventor finds the following problems in the prior art:

current cable joint, when being connected with cable end portion conducting part, only wrap up cable conducting part and connect, have the gap between cable conducting part and the joint, the cable conducting part in the gap exposes in the air, meets external humid air or some wire, all can cause serious electric shock danger.

Therefore, a through type cable connector is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate the deficiency of the prior art, the utility model provides a through cable joint.

The utility model provides a technical scheme that its technical problem adopted is: the utility model discloses a straight-through cable joint, which comprises a conductive head, an inner semiconductor layer, an insulating layer and an outer semiconductor layer; one end of the conductive head is in a bullet shape, the other end of the conductive head is provided with a first threaded hole, the outer ring of the conductive head is wrapped with the inner semiconductor layer, an annular convex part is arranged inside the inner semiconductor layer, the convex part is embedded into the annular groove formed in the middle of the conductive head, the outer ring of the inner semiconductor layer is wrapped with the insulating layer, the outer ring of the insulating layer is wrapped with the outer semiconductor layer, one end parts of the outer semiconductor layer and the insulating layer are provided with telescopic holes, and the telescopic holes penetrate through the first threaded hole; the electrically conductive end of the tip with the cable passes through the spot welding rigid coupling on the screw rod, the screw rod stretches into the flexible hole, and change the cable, make the cable drive the screw rod rotate and twist into threaded hole No. one, the tip electric connection of electrically conductive head and cable is together this moment, the one end of electrically conductive head is as public head this moment, insert another cable of the inside female first electric connection of female head with its looks adaptation, the cable that realizes two breaks off becomes a continuous circuit, and the electrically conductive position of cable and cable insulation layer wrap up in flexible downthehole together, realize the electrically conductive end seal protection of cable, guarantee that power consumption security and reliability are not high, avoid creepage of high-voltage current face, the emergence of accidents such as insulation breakdown.

Preferably, the outer ring of the outer semiconductor layer is provided with a ring-shaped first clamping groove, and a fixing mechanism is arranged in the first clamping groove; the fixing mechanism comprises a fixing ring, a fixing rod and a fastening nut; the inner ring of the fixing ring is sleeved in the first clamping groove, the fixing ring is provided with a through hole, one end of the fixing rod penetrates through the through hole, the outer ring of one end of the fixing rod is provided with threads and is connected with a fastening nut, and the other end of the fixing rod is bent to be in a hook shape; the hook end on the dead lever is blocked on another cable junction female head shell, then the fastening nut is tightened, the fastening nut rotates and stretches the dead lever, and the female head and the conductive head are further fixed, so that the stability between the two is improved, and the safety and the reliability of the electrical connection between the two cables are improved.

Preferably, the through hole is waist-shaped, and the fixing ring is provided with a plurality of semicircular grooves; a base plate is arranged between the fastening nut and the fixing ring, the base plate is sleeved on the fixing rod, salient points are arranged on the surface of the base plate, and the salient points are embedded in the semicircular grooves; through setting up the through-hole of waist type form for fixed peg can be to both sides skew, makes on the dead lever hook terminal effectively hook on female, guarantees stability between hook end and the female shell, tightly at last solid screw back simultaneously, and the bump embedding is in the half slot, guarantees the stability of dead lever position in the through-hole, prevents that the dead lever from receiving when not receiving destructive vibrational force, dead lever position change, and the hook end of dead lever breaks away from female shell.

Preferably, the side edge of the base plate is provided with an extrusion plate, the extrusion plate and the base plate are integrally bent and formed, and the included angle between the extrusion plate and the base plate is larger than 90 degrees; after the nut is tightly fixed, because the included angle between the extrusion plate and the base plate is greater than 90 degrees, the extrusion plate extrudes on the outer semiconductor layer, and the stability between the fixing ring and the first clamping groove is improved beneficially, so that the stability between the hook end of the fixing rod and the shell of the nut is improved.

Preferably, an annular second clamping groove is formed in the outer ring of one end of the outer semiconductor layer, and a clamping mechanism is arranged in the second clamping groove; the clamping mechanism comprises a clamping plate, a connecting rod and a ring body; the ring body is rotatably connected in the second clamping groove, one end of a plurality of connecting rods is uniformly and fixedly connected to the outer end face of the ring body, the other end of each connecting rod is fixedly connected with a clamping plate, and the clamping plates are arc-shaped; the cable rigid coupling is on the screw rod, and the tip part of cable stretches into in the telescopic hole, then will through the pliers, the grip block is crooked, wraps up on the insulating layer of cable, strengthens the stability between cable and the cable joint, improves the joint strength between cable and the cable joint.

Preferably, the connecting rod comprises an insulating sleeve and an elastic rod; the outer ring of the elastic rod is wrapped by an insulating sleeve, and the insulating sleeve and the end of the elastic rod are fixedly connected to the ring body and the clamping plate respectively; through the elastic rod, elastic buffering protection is provided between the cable and the cable joint, and the elastic buffering protection can be restored after the connecting rod is bent, so that the connecting strength is ensured, and the elastic bending protection between the cable and the cable joint can be ensured.

Preferably, strip-shaped rubber strips are arranged on the inner concave surface of the clamping plate in a row, and the rubber strips are fixedly connected to the clamping plate at equal intervals; through the rubber strip, prevent that the grip block from with the cable inner race's insulating layer extrusion breakage, the rubber strip of bar form simultaneously, the stability between increase grip block and the cable is improved to the pressure of cable inner race.

Preferably, the outer ring of the outer semiconductor layer is provided with a grounding hole, and a voltage test point is arranged at a position point where the outer semiconductor layer is combined with the middle of the insulating layer; by arranging the grounding hole, the grounding wire is connected to the grounding hole, so that the grounding effect on the external semiconductor layer is achieved, and the reliability and the safety of the utility model are improved; and whether the power supply line is electrified or not is conveniently monitored through the voltage test point, and the safety and the reliability are improved.

The utility model discloses an useful part lies in:

1. one end of the conductive head is used as a male head, and the female head in the female head matched with the conductive head is inserted into the male head and electrically connected with another cable, so that two disconnected cables form a continuous line, the low power utilization safety and reliability are ensured, and accidents such as creepage and insulation breakdown of a high-voltage current surface are avoided;

2. the hook end on the dead lever is blocked on another cable junction female head shell, then the fastening nut is tightened, the fastening nut rotates and stretches the dead lever, and the female head and the conductive head are further fixed, so that the stability between the two is improved, and the safety and the reliability of the electrical connection between the two cables are improved.

The above description of the present invention is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clearly understood by those skilled in the art, further, the present invention can be implemented according to the contents described in the text and the drawings of the present application, and in order to make the above objects, other objects, features, and advantages of the present application more easily understood, the following description will be made in conjunction with the detailed description of the present application and the drawings.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of particular embodiments of the present application, as well as others related thereto, and are not to be construed as limiting the application.

In the drawings of the specification:

fig. 1 is a cross-sectional view of a cable joint according to the present invention;

fig. 2 is a perspective view of the fixing mechanism of the present invention;

FIG. 3 is a matching view of the rubber strip and the clamping plate of the present invention;

FIG. 4 is a matching view of the fixing rod and the through hole of the present invention;

FIG. 5 is a cross-sectional view of the connecting rod of the present invention;

in the figure:

1. a conductive head is arranged on the conductive head,

2. an inner semiconductor layer of a semiconductor material having a first conductivity type,

3. an insulating layer is formed on the substrate,

4. an outer semiconductor layer, an inner semiconductor layer,

5. a first threaded hole is formed in the first sleeve,

6. the convex part is provided with a convex part,

7. the annular groove is formed in the outer wall of the casing,

8. the telescopic hole is arranged on the upper part of the telescopic hole,

9. a first clamping groove is formed on the first clamping plate,

10. a fixing ring is arranged on the upper surface of the shell,

11. a fixing rod is fixed on the upper end of the supporting rod,

12. the nut is tightened to make the nut in a tight state,

13. a through-hole is formed in the substrate,

14. the semi-circular groove is provided with a semi-circular groove,

15. the base plate is provided with a plurality of base plates,

16. the convex points are arranged on the outer surface of the shell,

17. the pressing plate is used for pressing the plate,

18. a second card slot is formed on the second card slot,

19. a clamping plate is arranged on the upper surface of the base plate,

20. a connecting rod is arranged on the upper surface of the connecting rod,

21. a ring body,

22. an insulating sleeve is arranged on the inner side of the insulating sleeve,

23. the elastic rod is provided with a plurality of elastic rods,

24. the rubber strip is provided with a rubber strip,

25. a ground hole is formed in the upper surface of the base,

26. a voltage test point for testing the voltage of the power supply,

27. a rubber block.

Detailed Description

In order to explain in detail possible application scenarios, technical principles, practical embodiments, and the like of the present application, the following detailed description is given with reference to the accompanying drawings in conjunction with the listed embodiments. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution as long as there is no technical contradiction or conflict.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, meaning that three relationships may exist, for example a and/or B, meaning: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.

The first embodiment is as follows:

referring to fig. 1-5, a through-type cable joint includes a conductive head 1, an inner semiconductive layer 2, an insulating layer 3, and an outer semiconductive layer 4; one end of the conductive head 1 is bullet-shaped, the other end of the conductive head 1 is provided with a first threaded hole 5, the outer ring of the conductive head 1 is wrapped by an inner semiconductor layer 2, a ring-shaped convex part 6 is arranged inside the inner semiconductor layer 2, the convex part 6 is embedded into a ring-shaped groove 7 formed in the middle of the conductive head 1, the outer ring of the inner semiconductor layer 2 is wrapped by an insulating layer 3, the outer ring of the insulating layer 3 is wrapped by an outer semiconductor layer 4, one end parts of the outer semiconductor layer 4 and the insulating layer 3 are provided with telescopic holes 8, and the telescopic holes 8 penetrate through the first threaded hole 5; pass through the spot welding rigid coupling with the electrically conductive end of the tip of cable on the screw rod, the screw rod stretches into flexible hole 8, and change the cable, make the cable drive the screw rod rotate and twist into screw hole 5 No. one, electrically conductive head 1 is in the same place with the tip electric connection of cable this moment, electrically conductive head 1's one end is as public head this moment, insert another cable of the inside female first electric connection of female head with its looks adaptation, the cable that realizes two breaks off becomes a continuous circuit, guarantee with electrical safety and reliability not high, avoid high-tension current face creepage, the emergence of accidents such as insulation breakdown.

An annular first clamping groove 9 is formed in the outer ring of the outer semiconductor layer 4, and a fixing mechanism is arranged in the first clamping groove 9; the fixing mechanism comprises a fixing ring 10, a fixing rod 11 and a fastening nut 12; an inner ring of the fixing ring 10 is sleeved in the first clamping groove 9, a through hole 13 is formed in the fixing ring 10, one end of the fixing rod 11 penetrates through the through hole 13, a thread is arranged on an outer ring of one end of the fixing rod 11 and is connected with the fastening nut 12, and the other end of the fixing rod 11 is bent to be in a hook shape; the hook end of the fixing rod 11 is clamped on the shell of the other cable connection female head, then the fastening nut 12 is tightened, the fastening nut 12 rotates and stretches the fixing rod 11, the female head and the conductive head 1 are further fixed, the stability between the two is improved, and therefore the safety and the reliability of the electrical connection between the two cables are improved.

The through hole 13 is waist-shaped, and a plurality of semicircular grooves 14 are formed in the fixing ring 10; a backing plate 15 is arranged between the fastening nut 12 and the fixing ring 10, the backing plate 15 is sleeved on the fixing rod 11, salient points 16 are arranged on the surface of the backing plate 15, and the salient points 16 are embedded in the semicircular grooves 14; through-hole 13 through setting up waist type form, make fixed peg can be to both sides skew, make dead lever 11 go up the effective hook of hook terminal on female, guarantee stability between hook end and the female first shell, simultaneously behind tight fastening nut 12, bump 16 imbeds in half slot 14, guarantee the stability of dead lever 11 at through-hole 13 internal position, prevent dead lever 11 when receiving the not destructive vibrational force of contact, dead lever 11 position changes, the hook end of dead lever 11 breaks away from female first shell.

The side edge of the backing plate 15 is provided with an extrusion plate 17, the extrusion plate 17 and the backing plate 15 are integrally bent and formed, and the included angle between the extrusion plate 17 and the backing plate 15 is larger than 90 degrees; after fastening nut 12 is tightened, because the included angle between stripper plate 17 and backing plate 15 is greater than 90 degrees, stripper plate 17 extrudees at outer semiconductor layer 4, is of value to improving the stability between solid fixed ring 10 and No. 9 draw-in groove this moment to improve the stability between dead lever 11 hook end and the female first shell.

An annular second clamping groove 18 is formed in the outer ring of one end of the outer semiconductor layer 4, and a clamping mechanism is arranged in the second clamping groove 18; the clamping mechanism comprises a clamping plate 19, a connecting rod 20 and a ring body 21; the ring body 21 is rotatably connected in the second clamping groove 18, one end of a plurality of connecting rods 20 is uniformly and fixedly connected to the outer end face of the ring body 21, the other end of each connecting rod 20 is fixedly connected with a clamping plate 19, and the clamping plate 19 is arc-shaped; the cable is fixedly connected to the screw rod, the end part of the cable extends into the telescopic hole 8, and then the clamping plate 19 is bent by the pliers and wrapped on the insulating layer 3 of the cable, so that the stability between the cable and the cable joint is enhanced, and the connecting strength between the cable and the cable joint is improved.

The connecting rod 20 comprises an insulating sleeve 22 and an elastic rod 23; the outer ring of the elastic rod 23 is wrapped by an insulating sleeve 22, and the ends of the insulating sleeve 22 and the elastic rod 23 are fixedly connected to the ring body 21 and the clamping plate 19 respectively; through elastic rod 23 for have the elastic buffer protection between cable and the cable joint, after connecting rod 20 is crooked, can reset again, both guaranteed joint strength, can guarantee the elastic bending protection between cable and the cable joint again.

Strip-shaped rubber strips 24 are arranged on the inner concave surface of the clamping plate 19 in a row, and the rubber strips 24 are fixedly connected to the clamping plate 19 at equal intervals; through rubber strip 24, prevent that grip block 19 from with the 3 extrusion crushings of insulating layer of cable outer lane, the rubber strip 24 of bar form simultaneously, increase grip block 19 is to the pressure of cable outer lane, improves the stability between grip block 19 and the cable.

The outer ring of the outer semiconductor layer 4 is provided with a grounding hole 25, and a voltage test point 26 is arranged at a combination position point between the outer semiconductor layer 4 and the insulating layer 3; by arranging the grounding hole 25, the grounding wire is connected to the grounding hole 25, so that the grounding effect on the outer semiconductor layer 4 is achieved, and the reliability and the safety of the utility model are improved; and whether the power supply line is electrified or not is conveniently monitored through the voltage test point 26, and the safety and the reliability are improved.

Example two:

referring to fig. 1, a first comparative example, as another embodiment of the present invention, wherein the hook end of the fixing rod 11 is provided with a spherical rubber block 27, and the hook end is placed to extrude and break the shell of the female head through the rubber block 27, thereby playing a role of buffering protection.

The working principle is as follows: the conductive end of the end part of the cable is fixedly connected to the screw rod through spot welding, the screw rod extends into the telescopic hole 8 and rotates the cable, so that the cable drives the screw rod to rotate and be screwed into the threaded hole 5, at the moment, the conductive head 1 is electrically connected with the end part of the cable, at the moment, one end of the conductive head 1 is used as a male head and is inserted into the female head inside the female head matched with the male head to be electrically connected with another cable, the two disconnected cables are formed into a continuous line, the electricity safety and reliability are ensured to be low, and accidents such as creepage of a high-voltage current surface, insulation breakdown and the like are avoided;

the hook end of the fixed rod 11 is clamped on the shell of the other cable connecting female head, then the fastening nut 12 is tightened, the fastening nut 12 rotates and stretches the fixed rod 11, the female head and the conductive head 1 are further fixed, the stability between the two is improved, and therefore the safety and the reliability of the electrical connection between the two cables are improved;

through the arrangement of the waist-shaped through hole 13, the fixed hanging rod can deviate towards two sides, so that a hook terminal on the fixed rod 11 is effectively hooked on a female head, the stability between the hook terminal and a female head shell is ensured, meanwhile, after the fastening nut 12 is tightened, the salient point 16 is embedded in the semicircular groove 14, the stability of the position of the fixed rod 11 in the through hole 13 is ensured, and the fixed rod 11 is prevented from being changed in position and the hook terminal of the fixed rod 11 is separated from the female head shell when the fixed rod 11 is subjected to missed destructive vibration force;

after the fastening nut 12 is tightened, because the included angle between the extrusion plate 17 and the base plate 15 is larger than 90 degrees, the extrusion plate 17 extrudes the outer semiconductor layer 4, and the stability between the fixing ring 10 and the first clamping groove 9 is improved beneficially, so that the stability between the hook end of the fixing rod 11 and the female shell is improved;

the cable is fixedly connected to the screw rod, the end part of the cable extends into the telescopic hole 8, and then the clamping plate 19 is bent by the pliers and wrapped on the insulating layer 3 of the cable, so that the stability between the cable and a cable joint is enhanced, and the connecting strength between the cable and the cable joint is improved;

through the elastic rod 23, elastic buffer protection is provided between the cable and the cable joint, and the connecting rod 20 can reset after being bent, so that the connecting strength is ensured, and the elastic bending protection between the cable and the cable joint can be ensured;

the rubber strip 24 prevents the clamping plate 19 from extruding and crushing the insulating layer 3 of the outer ring of the cable, and meanwhile, the strip-shaped rubber strip 24 increases the pressure of the clamping plate 19 to the outer ring of the cable and improves the stability between the clamping plate 19 and the cable;

by arranging the grounding hole 25, the grounding wire is connected to the grounding hole 25, so that the grounding effect on the outer semiconductor layer 4 is achieved, and the reliability and the safety of the utility model are improved; and whether the power supply line is electrified or not is conveniently monitored through the voltage test point 26, and the safety and the reliability are improved.

In this embodiment, a power mechanism or power unit, including but not limited to an engine, an electric motor, a pneumatic tool, a hydraulic pump, etc. The power unit also comprises a direct power source and an indirect power source, wherein the direct power source can provide power for the power unit, such as an engine, a motor and the like, and the indirect power source comprises a cylinder, a hydraulic cylinder and the like. The power mechanism or the power unit can be matched through a gear and a rack, a sliding block is matched with a sliding groove, a lead screw is matched with a nut to drive the linear reciprocating motion of the execution unit, and the like.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims (8)

1. A through cable joint characterized in that: comprises a conductive head (1), an inner semiconductor layer (2), an insulating layer (3) and an outer semiconductor layer (4); the one end of conductive head (1) is bullet form, and threaded hole (5) No. one are seted up to the other end of conductive head (1), and conductive head (1) outer lane parcel has interior semiconductor layer (2), and interior semiconductor layer (2) inside is equipped with convex part (6) of annular form, and convex part (6) embedding is in offering ring channel (7) in the middle of conductive head (1), and interior semiconductor layer (2) outer lane parcel has insulating layer (3), and insulating layer (3) outer lane parcel has outer semiconductor layer (4), and flexible hole (8) are seted up to outer semiconductor layer (4) and insulating layer (3) tip, and flexible hole (8) run through to threaded hole (5) department No. one.

2. A pass-through cable connector as claimed in claim 1, wherein: the outer ring of the outer semiconductor layer (4) is provided with a ring-shaped first clamping groove (9), and a fixing mechanism is arranged in the first clamping groove (9); the fixing mechanism comprises a fixing ring (10), a fixing rod (11) and a fastening nut (12); the inner ring sleeve of the fixing ring (10) is arranged in the first clamping groove (9), the fixing ring (10) is provided with a through hole (13), one end of the fixing rod (11) penetrates through the through hole (13), the outer ring of one end of the fixing rod (11) is provided with threads and is connected with a fastening nut (12), and the other end of the fixing rod (11) is bent to be in a hook shape.

3. A pass-through cable connector as claimed in claim 2, wherein: the through hole (13) is waist-shaped, and the fixing ring (10) is provided with a plurality of semicircular grooves (14); a base plate (15) is arranged between the fastening nut (12) and the fixing ring (10), the base plate (15) is sleeved on the fixing rod (11), salient points (16) are arranged on the surface of the base plate (15), and the salient points (16) are embedded into the semicircular grooves (14).

4. A pass-through cable connector as claimed in claim 3, wherein: the side edge of the backing plate (15) is provided with an extrusion plate (17), the extrusion plate (17) and the backing plate (15) are integrally bent and formed, and the included angle between the extrusion plate (17) and the backing plate (15) is larger than 90 degrees.

5. A pass-through cable connector as claimed in claim 2, wherein: an annular second clamping groove (18) is formed in the outer ring of one end of the outer semiconductor layer (4), and a clamping mechanism is arranged in the second clamping groove (18); the clamping mechanism comprises a clamping plate (19), a connecting rod (20) and a ring body (21); the ring body (21) is rotatably connected in the second clamping groove (18), one end of a plurality of connecting rods (20) is uniformly and fixedly connected to the outer end face of the ring body (21), the other end of each connecting rod (20) is fixedly connected with a clamping plate (19), and the clamping plates (19) are arc-shaped.

6. A pass-through cable connector as claimed in claim 5, wherein: the connecting rod (20) comprises an insulating sleeve (22) and an elastic rod (23); the outer ring of the elastic rod (23) is wrapped by an insulating sleeve (22), and the ends of the insulating sleeve (22) and the elastic rod (23) are fixedly connected to the ring body (21) and the clamping plate (19) respectively.

7. A pass-through cable connector as claimed in claim 6, wherein: the concave surface row of grip block (19) is equipped with rubber strip (24) of strip form, and rubber strip (24) interval same distance rigid coupling is on grip block (19).

8. A pass-through cable connector as claimed in claim 5, wherein: and the outer ring of the outer semiconductor layer (4) is provided with a grounding hole (25), and a voltage test point (26) is arranged at a combination position point between the outer semiconductor layer (4) and the insulating layer (3).

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