阅读说明：本技术 防脱导电线缆接头 (Anti-drop conductive cable joint ) 是由 刘荣 于 2019-04-23 设计创作，主要内容包括：本发明公开了一种防脱导电线缆接头包括挤紧在导电外套内的左、右楔形块。本发明防脱导电线缆接头结构更合理、受力更强大,连接更牢固、使用更方便,可广泛运用于海、陆、空用电设备中的导线连接。(The invention discloses an anti-drop conductive cable joint which comprises a left wedge-shaped block and a right wedge-shaped block which are tightly extruded in a conductive outer sleeve. The anti-drop conductive cable has the advantages of more reasonable joint structure, stronger stress, firmer connection and more convenient use, and can be widely applied to the connection of the wires in the sea, land and air electric equipment.)

1. The invention relates to an anti-drop conductive cable connector, which comprises a clamping assembly and is characterized in that: the clamping piece comprises a left wedge block (4), a right wedge block (4) and a conductive outer sleeve (1), the upper plane and the lower plane of the cross section of the conductive outer sleeve (1) are connected with a left cambered surface and a right cambered surface, the upper plane of the conductive outer sleeve (1) is provided with an axial wire core inlet groove (2) allowing a cable core (8) to enter, the conductive outer sleeve (1) body on one side of the wire core inlet groove (2) extends obliquely towards the upper part of the other side sleeve body, and the sleeve body at the extending part is connected with the lower sleeve body through a front locking screw (3) to lock the conductive outer sleeve (1);

firstly, the left and right wedges (4) are in reverse symmetry, the small end of the left and right wedges (4) respectively enter the left and right sides of the front and back ends of the conductive outer sleeve (1) and extrude the left and right cable cores (8) on the left and right cambered surfaces of the conductive outer sleeve (1) through the mutual extrusion of the opposite wedge surfaces, the wedge (4) corresponding to the locking screw (3) is provided with a guide groove (5) in the left and right directions at the top of the large end, before extrusion, the wedge (4) is firstly arranged at the extrusion position in the conductive outer sleeve (1), the locking screw (3) aligned with the guide groove (5) sinks to penetrate through the sleeve body to extend into the guide groove (5) so as to let the cable core enter into the groove (2), when extrusion, the large end of another wedge (4) is knocked or the small end of another wedge (4) is tensioned through a tensioning bolt (6) penetrating through the wedge (4), for the left and right wedge blocks (4) which are knocked and squeezed, triangular teeth which are mutually buckled to prevent falling and loosening can be arranged on the opposite wedge surfaces of the left and right wedge blocks;

and secondly, the large end parts of the wedge blocks (4) of the left and right wedge blocks (4) are provided with guide grooves (5) in the left and right directions and are interlocked by locking screws (3), the middle layer or the bottom layer of the conductive sleeve body (1) is perforated with the guide grooves (5) corresponding to the wedge blocks (4), cable cores of the conductive sleeve body are made to enter the grooves (2) so as to adjust the free stroke of the wedge blocks (4) in the conductive sleeve body, so that the cable cores can enter the cable cores (8) conveniently, the stable wedge blocks (4) are arranged, and cable core entering groove channels (2) are reserved. The cable is characterized in that the cable is symmetrically arranged in the conductive outer sleeve (1), a tensioning screw (7) is arranged between the conductive outer sleeve and the conductive outer sleeve, the tensioning direction of the tensioning screw (7) is from the small end to the big end of the left and right wedge-shaped blocks (4), a conical extrusion block (9) penetrating through the tensioning screw (7) is embedded between the small ends of the left and right wedge-shaped blocks (4), and the conical extrusion block (9) expands the small ends of the left and right wedge-shaped blocks (4) to tightly extrude the left and right cable cores (8) on the left and right cambered surfaces of the conductive outer sleeve (1);

and thirdly, the end part of the big end of the wedge block (4) which is symmetrical left and right is provided with a guide groove (5) in the left and right directions, and the guide groove (5) is interlocked with a locking screw (3), the middle layer or the bottom layer of the conductive sleeve body (1) is punched to be corresponding to the guide groove (5) of the wedge block (4), and a cable core of the conductive sleeve body is led to enter the groove (2), so that the free stroke of the wedge block (4) in the conductive sleeve body is adjusted, the cable core (8) can enter the groove conveniently, the wedge block (4) is stabilized, and the cable core is left to enter the groove channel (2). Locate in electrically conductive overcoat (1) and be equipped with expansion screw rod (10) between the two, the tensioning direction of expansion screw rod (10) is from the microcephaly end of left and right wedge (4) to big end, and the afterbody expansion block of expansion screw rod (10) imbeds between the microcephaly end of left and right wedge (4).

The technical field is as follows:

the invention relates to a connecting piece structure of a conductive cable, in particular to an anti-drop conductive cable joint.

Priority number (my prior application number): 201720506553.3

Background art:

the connection method of the electric wire and the cable comprises a wire stirring mode, a copper pipe oil pressure and bullet shooting compression mode, a screw pressing mode, a wedge pushing structure of an outer sleeve, a conductive inner taper sleeve and a conductive outer taper sleeve which are mutually nested and extruded, a conductive taper shrink sleeve provided with an axial shrink groove and a conductive wiring lug or conductive wiring sleeve matching and extruding mode, two opposite conductive taper shrink sleeves mutually extruding and locking wire cores in sleeve holes of the conductive wiring lug or conductive wiring sleeve, a wiring mode of adopting a nut or a bolt to forcibly extrude a conductive taper and the like.

Due to structural design defects, the various wire and cable connectors have more or less problems, and are not satisfactory in terms of convenience, reliability, safety and the like.

The invention content is as follows:

the anti-drop conductive cable joint adopts the technical scheme that the anti-drop conductive cable joint comprises a left wedge block, a right wedge block and a conductive outer sleeve, wherein in order to enable one wedge block to be fixed in the conductive outer sleeve in advance and connect the wedge block and the conductive outer sleeve by a locking screw, the middle layer of the conductive outer sleeve is designed to be in integrated interaction with the wedge block, the upper plane and the lower plane of the cross section of the conductive outer sleeve are connected with a left cambered surface and a right cambered surface, the upper plane of the conductive outer sleeve is provided with an axial wire core entering groove for a cable core to enter, a conductive outer sleeve body on one side of the wire core entering groove extends obliquely (the height of the conductive outer sleeve body is larger than the wire diameter of the cable core) towards the upper part of the other;

1. left and right wedge (4) are symmetrical reversely, the small end of the left and right wedge (4) enters into the left and right sides of the front and back ends of the conductive outer sleeve respectively and extrudes the left and right cable cores (8) on the left and right arc surfaces of the conductive outer sleeve through the opposite wedge surfaces, the wedge (4) corresponding to the locking screw (3) is provided with a guide groove (5) in the left and right directions on the top of the large end, before extrusion, the wedge is arranged at the extrusion position in the conductive outer sleeve (1) first, the locking screw (3) aligned with the guide groove sinks to penetrate the sleeve body and extend into the guide groove (5), the large end of another wedge (4) is knocked during extrusion or the small end of another wedge (4) is tensioned with the wedge (4) through a tensioning bolt (7) penetrating through the wedge (4), and the left and right wedges (4) are knocked tightly, the opposite wedge faces can be provided with triangular teeth which are mutually buckled to prevent the falling and loosening.

2. The cable core of the electric conduction sleeve body is characterized in that the end part of the big end of the wedge block (4) of the left wedge block and the right wedge block is provided with a guide groove (5) in the left-right direction and is interlocked with a locking screw (3), the middle layer or the bottom layer of the electric conduction sleeve body (1) is perforated with the guide groove (5) corresponding to the wedge block (4), the cable core of the electric conduction sleeve body is made to enter the groove (2), the free stroke of the wedge block (4) in the electric conduction sleeve body is adjusted, the cable core can enter the cable core (8) conveniently, the wedge block (4) is stabilized, and the cable core is left to enter the groove (2. The symmetry is located in electrically conductive overcoat (1) and is equipped with straining screw (7) between the two, the taut direction of straining screw (7) is equipped with toper extrusion piece (9) of wearing to establish on straining screw (7) for following the microcephaly end of left and right wedge (4) to the major part end between the microcephaly end of left and right wedge (4), toper extrusion piece (9) expand the microcephaly end of left and right wedge (4) and squeeze tightly on the left and right cambered surface of electrically conductive overcoat (1) with left and right cable core (8) under the effect of straining screw (7).

3. Wedge (4) of left and right symmetry are located in electrically conductive overcoat (1) and are equipped with expansion screw pole (10) between the two, the tensioning direction of expansion screw pole (10) is from the microcephaly end of left and right wedge (4) to the major part end, and the afterbody expansion block of expansion screw pole (10) imbeds between the microcephaly end of left and right wedge (4), the expansion block expands the microcephaly end of left and right wedge (4) and crowds tightly left and right cable core (8) on the left and right cambered surface of electrically conductive overcoat (1) under the effect of tensioning screw (7).

The invention has the beneficial effects that:

1. the cylindrical shrinkage sleeve has the advantages of simple structure, convenience in processing and manufacturing and stability in clamping the cable core.

2. The anti-drop conductive cable joint has the advantages of more reasonable structure, stronger stress, firmer connection and more convenient use, and can be widely applied to wire connection in sea, land and air electric equipment.

Drawings

Fig. 1 is a schematic alignment diagram of components of an anti-drop conductive cable connector according to embodiment 1 of the present invention.

Fig. 2(a) is a state diagram of the left and right wedge-shaped blocks of the embodiment of fig. 1 being tightly packed in the conductive outer sleeve.

Fig. 2(b) is a sectional view of fig. 2 (a).

Fig. 3(a) is a mounting connection structure diagram of the anti-drop conductive cable connector according to embodiment 2 of the present invention.

Fig. 3(b) is an internal structural view of fig. 3 (a).

Fig. 4(a) is a mounting connection structure diagram of the anti-drop conductive cable connector according to embodiment 3 of the present invention.

Fig. 4(b) is an internal structural view of fig. 4 (a).

And (3) identifying the figure number: 1. a conductive outer sleeve; 2. the wire core enters the groove; 3. locking the screw; 4. a wedge block; 5. a guide groove; 6. tightening the bolts; 7. tensioning the screw rod; 8. a cable core; 9. a conical extrusion block; 10. an expansion screw shaft; 11. the guide groove corresponds to the hole.

The specific implementation mode is as follows:

the technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.

Embodiment 1 of the anti-drop conductive cable joint of the present invention: the cable clamping device comprises a clamping assembly, wherein the clamping assembly comprises a left wedge-shaped block 4, a right wedge-shaped block 4 and a conductive outer sleeve 1, the outer side of the wedge-shaped block 4 is an inwards concave arc surface, the upper plane and the lower plane of the cross section of the conductive outer sleeve 1 are connected with the left outwards convex arc surface and the right outwards convex arc surface, and an axial cable core inlet groove 2 for a cable core 8 to enter is formed in the upper plane of the conductive outer sleeve 1; the small ends of the left and right wedge blocks 4 respectively enter the left and right sides of the front and back ends of the conductive outer sleeve 1 and are relatively extruded through the opposite wedge surfaces, and the wedge blocks (4) of the left and right wedge blocks 1 can be opened to form triangular teeth buckles, so that the extruded left and right wedge blocks 1 are prevented from being separated to cause looseness, in the extrusion process, the left and right wedge blocks 4 are expanded leftwards and rightwards and are tightly pressed with the conductive outer sleeve 1 to firmly wrap the cable core 8, and after the nesting and the extrusion are in place, the big ends of the wedge blocks 4 are exposed out of the port of the conductive outer sleeve 1, as shown in fig. 1.

The left electrically conductive overcoat 1 of cable core access groove 2 extends to the slant of the electrically conductive overcoat 1 top in right side, extend between the cover body of the position and the cover body of below through preceding locking screw 3 connection and the electrically conductive overcoat 1 of locking, back locking screw 3's position is corresponding to the guide way 5 of right side wedge 4, back locking screw 3 sinks the electrically conductive overcoat in middle level of below and passes through the electrically conductive overcoat in middle level and let the cable core (8) of being qualified for the next round of competitions enter the groove and use when making things convenient for cable core (8) to begin to enter, and hang in guide way 5, preceding, the back removal of right side wedge 4 can be restricted to back locking screw 3, do not restrict the left and right removal of right side wedge 4, thereby should satisfy in crowded tight process, right side wedge 4 has the movable allowance of electrically conductive overcoat 1 right side cambered surface, as shown in.

The squeezing process is to limit the right wedge-shaped block 4 at the squeezing position and use a hammer to knock the big end of the left wedge-shaped block 4, the limiting structure comprises a guide groove 5 in the left and right directions, and the guide groove 5 (a through groove or a blind groove) is arranged on the end surface of the big end part of the right wedge-shaped block 4, as shown in fig. 1; another squeezing scheme for replacing hammer knocking is to adopt a tensioning bolt 6, wherein the tensioning bolt 6 penetrates from the large head end of the left wedge block 4 to the small head end, a gasket is arranged on the tensioning bolt 6 at the small head end (leaning against the end surface of the conductive outer sleeve 1) and a tightening nut is screwed on the tensioning bolt 6 to tighten the tensioning bolt 6 through the tightening nut, so that the left wedge block 4 is gradually pulled into the conductive outer sleeve 1 to be squeezed with the right wedge block 4, as shown in fig. 2(a) and fig. 2 (b).

The invention relates to a second implementation mode of an anti-drop conductive cable joint, which comprises the following steps: the difference from the 2 nd embodiment is that the left and right wedges 4 are symmetrically arranged in the conductive outer sleeve 1 and the bottom layer of the conductive outer sleeve is provided with corresponding holes of the guide groove to link the wedges (4) and the guide groove, so that the cable core (8) can be threaded interactively and circularly, a tension screw 7 is arranged between the left and right wedges 4, the tension direction of the tension screw 7 is from the small end to the big end of the left and right wedges 4, a conical extrusion block 9 is embedded between the small ends of the left and right wedges 4, the conical extrusion block 9 is arranged on the tension screw 7 in a penetrating way, a gasket (leaning against the end surface of the conductive outer sleeve 1) is arranged on the tension screw 7 at the big end, a tightening nut is screwed on the tension screw 7, the tension screw 7 drives the conical extrusion block 9 to expand the small ends of the left and right wedges 4 to tightly extrude the left and right cable cores 8 on the left and right cable cores 1, On the right arc surface, as shown in fig. 3(a) and 3 (b).

The third embodiment of the anti-drop conductive cable joint of the invention: the difference with the embodiment of the 2 nd embodiment lies in that the left and right wedge-shaped blocks 4 are symmetrically arranged in the conductive outer sleeve 1 and the bottom layer of the conductive outer sleeve is provided with corresponding holes of the guide groove to link the wedge-shaped blocks (4) and the guide groove, so as to facilitate the interaction and the rotation of the cable core (8), an expansion screw rod 7 is arranged between the left and right wedge-shaped blocks 4, the tensioning direction of the expansion screw rod 7 is from the small end to the big end of the left and right wedge-shaped blocks 4, the expansion block at the tail part of the expansion screw rod 7 is embedded between the small ends of the left and right wedge-shaped blocks 4, a gasket is arranged on the expansion screw rod 7 at the big end (leaning against the end surface of the conductive outer sleeve 1) and a tightening nut is screwed on the gasket on the expansion screw rod 7, the expansion screw rod 7 is tensioned by screwing the tightening nut, the expansion block of the expansion rod 7 expands the small end of the left and right wedge-shaped blocks 4 to squeeze the left and right core cables 8 on the, On the right arc surface, as shown in fig. 4(a) and 4 (b).