CN108599087B

CN108599087B - Cable connector for electrical installation

Info

Publication number: CN108599087B
Application number: CN201810368954.6A
Authority: CN
Inventors: 林烨
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Soko Electric Technology Co ltd
Priority date: 2018-04-23
Filing date: 2018-04-23
Publication date: 2020-02-11
Anticipated expiration: 2038-04-23
Also published as: CN108599087A

Abstract

The invention discloses a cable joint for electrical installation, which comprises a protective sleeve with a pair of connecting ends, a pair of pushing devices and a pair of fastening devices, wherein the pair of connecting ends are electrically connected together through a lead, the pushing devices are used for driving the corresponding connecting ends to extend out of the outer end of the protective sleeve, the fastening devices are arranged on the corresponding end parts of the protective sleeve, each fastening device comprises a plurality of clamping arms, first ropes and second ropes which are uniformly distributed in an annular mode, the first ropes and the second ropes are sleeved on the periphery of the clamping arms, the two ends of the first ropes are connected together through first knots, the two ends of the second ropes are connected together through second knots, and the inner peripheral surfaces of the clamping arms abut against cables to clamp the cables by drawing the first ropes and the second ropes. Due to the adoption of the structure, the connection between the cable and the connecting end is firmer, and the safety of the cable connector is enhanced.

Description

Cable connector for electrical installation

Technical Field

The invention relates to the technical field of power cables, in particular to a cable joint for electrical installation.

Background

The cable connector is also called a cable head. After the cable is laid, the sections of the cable must be connected together in order to form a continuous line, and these connections are called cable connectors. The cable joints at the middle of the cable run are called intermediate joints and the cable joints at the two ends of the run are called termination joints. The cable joint is used for locking and fixing the incoming and outgoing lines, and plays a role in water resistance, dust prevention and vibration prevention.

Chinese patent CN201610546791.7 discloses a cable connector, which includes a connector having a first connecting end and a second connecting end, the ends of the first connecting end and the second connecting end are respectively provided with at least one cable hole along the axial direction, when the number of cable holes of any connecting end is greater than one, the cable holes are communicated with each other. The end parts of the first connecting end and the second connecting end are respectively provided with two inclined grooves along the axial direction, and each inclined groove penetrates through the cable hole and the outer side wall of the connecting body.

The connection between the cable and the connection terminal in the above patent document is not reliable, and the safety in use is not high.

Disclosure of Invention

In view of the above, the present invention provides a cable connector for electrical installation, which is reliable in connection between a cable and a terminal and has high safety.

In order to achieve the purpose, the invention provides the following technical scheme:

a cable joint for electrical installation, comprising:

a protective sleeve having a pair of connection ends electrically connected together by a wire;

the pushing devices are used for driving the corresponding connecting ends to extend out of the outer end of the protective sleeve;

the pair of fastening devices are arranged at the corresponding end parts of the protective sleeve and comprise a plurality of clamping arms, first ropes and second ropes which are uniformly distributed in an annular mode, the first ropes and the second ropes are sleeved on the periphery of the clamping arms, two ends of the first ropes are connected together through first knots, two ends of the second ropes are connected together through second knots, and the first ropes and the second ropes are pulled to enable the inner circumferential surfaces of the clamping arms to abut against the cable to clamp the cable.

Furthermore, the clamping arm comprises an elastic sheet, a connecting seat and a clamping head, one end of the elastic sheet is connected to the outer end of a supporting circular tube, the inner end of the supporting circular tube is fixedly arranged at the corresponding end of the protective sleeve, the other end of the elastic sheet is connected with the connecting seat, and the clamping head is clamped on the connecting seat.

Furthermore, press from both sides the dress head and include arc portion and connecting portion, be equipped with a appearance wire casing on the lateral surface of arc portion, first rope with the second rope all inlays to be established in the appearance wire casing, it is protruding to have a plurality of arc on the inner wall of arc portion, connecting portion connect on the interior terminal surface of arc portion, interior arc groove has been seted up on the medial surface of connecting portion, interior arc groove with outer flange portion on the connecting seat cooperatees.

Further, the clamping head is made of an insulating material.

Furthermore, the fastening device further comprises sheaths with the same number as the clamping arms, the sheaths are embedded in the wire accommodating grooves of the corresponding clamping arms, and the sheaths are sleeved on the peripheries of the first rope and the second rope.

Still further, there are 4 said arms.

Furthermore, thrust unit includes a pair of briquetting, a slide bar, a pair of slider and a pair of spring, the briquetting is established with running through on the perisporium of protective case, the slide bar slides and sets up in the protective case, the fixed cover of slider is established on the periphery of slide bar, the interior inclined plane of briquetting with the afterbody of slider is supported and is leaned on, the one end of spring is connected on the terminal surface of slider, the other end of spring is connected on the protective case.

Furthermore, a blocking ring is arranged on the inner wall of the protective sleeve, the blocking ring is in sliding fit with the sliding rod, the inner end of the supporting circular tube is connected to the outer end face of the blocking ring, and the spring is connected between the inner end face of the blocking ring and the sliding block.

The technical scheme can show that the invention has the advantages that: the invention is provided with the fastening device, the fastening device comprises a plurality of clamping arms which are uniformly distributed in an annular mode, the first rope and the second rope, and the inner circumferential surfaces of the clamping arms abut against the cable to clamp the cable by drawing the first rope and the second rope, so that the connection between the cable and the connecting end is more reliable, and the safety of the cable clamp is improved.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:

fig. 1 is a schematic view of the present invention in an unused state.

Fig. 2 is a side view of the invention from direction a.

Fig. 3 is a schematic view of the state of use of the present invention.

Fig. 4 is a sectional view taken along the direction B-B of fig. 3.

Fig. 5 is a cross-sectional view of the fastening device of the present invention.

Fig. 6 is an enlarged view at I in fig. 5.

Figure 7 is a view of the support tube and the arms of the clamp of the present invention.

Fig. 8 is a side view in the direction of C of fig. 7.

Figure 9 is a front view of the clamping head of the fastening device of the present invention.

Fig. 10 is a sectional view taken along the direction D-D of fig. 9.

Labeled as: the cable connector comprises a connecting end 1, a pushing device 2, a pressing block 21, a sliding rod 22, a sliding block 23, a spring 24, a protective sleeve 3, a first cable passing hole 31, a second cable passing hole 32, a baffle ring 4, a lead 5, a fastening device 6, a supporting circular tube 61, a clamping arm 62, a spring piece 621, a connecting seat 622, an outer flange portion 6221, a clamping head 623, an arc portion 6231, an arc protrusion 62311, an inner end face 62312, a connecting portion 6232, an inner arc groove 62321, an inner flange portion 62322, a cable accommodating groove 6233, a first end face 6234, a second end face 6235, a sheath 63, a first cable 64, a first knot 641, a second cable 65, a second knot 651, an opening 66 and a cable 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 10, a cable connector for electrical installation as shown in fig. 1, 2, 3 and 4, includes: a protective sleeve 3 having a pair of connection ends 1, a pair of pushing means 2 and a pair of fastening means 6, the pair of connection ends 1 being electrically connected together by a wire 5; the pushing device 2 is used for driving the corresponding connecting end 1 to extend out of the outer end of the protective sleeve 3; the fastening device 6 is disposed at the corresponding end of the protective sleeve 3, the fastening device 6 includes a plurality of clamping arms 62 uniformly distributed in a ring shape, a first rope 64 and a second rope 65, the first rope 64 and the second rope 65 are both sleeved on the outer periphery of the clamping arms 62, two ends of the first rope 64 are connected together by a first knot 641 after passing through a first wire passing hole 31 on the protective sleeve 3, two ends of the second rope 65 are connected together by a second knot 651 after passing through a second wire passing hole 32 on the protective sleeve 3, and the inner circumferential surfaces of the clamping arms 62 abut against the cable 7 to clamp the cable 7 by pulling the first rope 64 and the second rope 65, so that the connection between the cable 7 and the connecting end 1 is more reliable, and the safety of the cable joint for electrical installation is enhanced.

As shown in fig. 1, the pushing device 2 includes a pair of pressing blocks 21, a sliding rod 22, a pair of sliding blocks 23 and a pair of springs 24, the pressing blocks 21 are penetratingly disposed on the peripheral wall of the protective sleeve 3, the sliding rod 22 is slidably disposed in the protective sleeve 3, the sliding blocks 23 are fixedly disposed on the periphery of the sliding rod 22, the inner inclined plane of the pressing blocks 21 abuts against the tail of the sliding blocks 23, one end of the spring 24 is connected to the end surface of the sliding blocks 23, the other end of the spring 24 is connected to the protective sleeve 3, and the pushing device 2 pushes the connecting ends 1 to extend out, so as to insert the cables 7 into the corresponding connecting ends 1.

As shown in fig. 1 and 3, a stop ring 4 is disposed on an inner wall of the protective sleeve 3, the stop ring 4 is slidably engaged with the sliding rod 22, and the spring 24 is connected between an inner end surface of the stop ring 4 and the slider 23.

As shown in fig. 4, 5 and 6, the fastening device 6 further includes sheaths 63 with the same number as the clamping arms 62, the sheaths 63 are embedded in the corresponding wire receiving slots 6233 of the clamping arms 62, and the sheaths 63 are sleeved on the peripheries of the first and

second ropes

64 and 65 to limit the first and

second ropes

64 and 65 in the wire receiving slots 6233.

As shown in fig. 5, the clipping arm 62 includes a spring 621, a connecting seat 622, and a clipping head 623, one end of the spring 621 is connected to the outer end of the supporting circular tube 61, the inner end of the supporting circular tube 61 is fixedly disposed on the outer end surface of the retaining ring 4 located at the corresponding end of the protecting sleeve 3, the other end of the spring 621 is connected to the connecting seat 622, and the clipping head 623 is clipped on the connecting seat 622, as shown in fig. 3, when the first rope 64 and the second rope 65 are pulled, the spring 621 deforms, so that the connecting seat 622 and the clipping head 623 clamp the cable 7 more tightly.

In the present embodiment, as shown in fig. 8, there are 4 clamping arms 62, and the cable 7 is clamped most tightly by the fastening device 6.

As shown in fig. 7, 9 and 10, the clamping head 623 includes a circular arc portion 6231 and a connecting portion 6232, the wire receiving groove 6233 is located on an outer side surface of the circular arc portion 6231, the inner wall of the circular arc portion 6231 has a plurality of arc protrusions 62311, the arc protrusions 62311 can increase friction between the clamping head 623 and the cable 7 to enable the cable 7 to be connected more reliably, the connecting portion 6232 is connected to an inner end surface 62312 of the circular arc portion 6231, an inner circular arc groove 62321 is formed on an inner side surface of the connecting portion 6232, and the inner circular arc groove 62321 is matched with an outer flange portion 6221 on the connecting seat 622, so that the connecting seat 622 and the clamping head 623 are mounted and replaced conveniently.

In this embodiment, the clamping head 623 is made of an insulating material, enhancing the safety of the present invention.

In the above structure, under the pushing action of the pushing device 2, the connecting end 1 is pushed to extend outward, the cable 7 is plugged into the connecting end 1, after the cable 7 is plugged into the connecting end 1, the connecting end 1 moves into the protective sleeve 3 under the action of the spring 24, so that the cable 7 passes through the opening 66 of the fastening device 6, then the first rope 64 and the second rope 65 are pulled to enable the inner circumferential surface of the clamping arm 62 to abut against the cable 7, so that the cable 7 is clamped, the connection between the cable 7 and the connecting end 1 is more reliable, and the first rope 641 and the second rope 651 are used to prevent the first rope 64 and the second rope 65 from loosening.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable connector for electrical installation, comprising:

a protective sleeve (3) having a pair of connection ends (1), the pair of connection ends (1) being electrically connected together by a wire (5);

the pair of pushing devices (2) are used for driving the corresponding connecting ends (1) to extend out of the outer end of the protective sleeve (3);

a pair of fastening devices (6), fastening devices (6) are arranged at the corresponding ends of protective sleeve (3), fastening devices (6) comprise a plurality of annular uniformly distributed clamping arms (62), first ropes (64) and second ropes (65), each clamping arm (62) comprises a spring plate (621), a connecting seat (622) and a clamping head (623), one end of each spring plate (621) is connected to the outer end of a supporting circular tube (61), the inner end of each supporting circular tube (61) is fixedly arranged at the corresponding end of the protective sleeve (3), the other end of each spring plate (621) is connected with the connecting seat (622), the clamping head (623) is clamped on the connecting seat (622), the clamping head (623) comprises an arc portion (6231) and a connecting portion (6232), a wire accommodating groove (6233) is formed in the outer side face of the arc portion (6231), the first rope (64) and the second rope (65) are embedded in the line-containing groove (6233), the inner wall of the circular arc part (6231) is provided with a plurality of arc-shaped protrusions (62311), the connecting part (6232) is connected on the inner end surface (62312) of the circular arc part (6231), an inner arc groove (62321) is arranged on the inner side surface of the connecting part (6232), the inner arc groove (62321) is matched with an outer flange part (6221) on the connecting seat (622), the first rope (64) and the second rope (65) are sleeved on the periphery of the clamping arm (62), the two ends of the first rope (64) are connected together by a first knot (641), the two ends of the second rope (65) are connected together by a second knot (651), the cable (7) is clamped by pulling the first and second ropes (64, 65) so that the inner circumferential surfaces of the clamp arms (62) abut against the cable (7).

2. The electrical installation cable connector of claim 1, wherein the clamping head (623) is made of an insulating material.

3. The electrical installation cable joint as claimed in claim 1, characterized in that the fastening means (6) further comprise a number of sheaths (63) equal to the number of the clamping arms (62), the sheaths (63) being embedded in the respective wire receiving grooves (6233) of the clamping arms (62), the sheaths (63) being fitted over the outer circumference of the first and second cords (64, 65).

4. Electrical installation cable joint according to claim 1, wherein there are 4 said clamping arms (62).

5. The cable joint for electrical installation according to claim 1, wherein the pushing device (2) comprises a pair of pressing blocks (21), a sliding rod (22), a pair of sliding blocks (23) and a pair of springs (24), the pressing blocks (21) are penetratingly arranged on the peripheral wall of the protective sleeve (3), the sliding rod (22) is slidably arranged in the protective sleeve (3), the sliding blocks (23) are fixedly sleeved on the periphery of the sliding rod (22), the inner inclined plane of the pressing blocks (21) abuts against the tail of the sliding blocks (23), one end of each spring (24) is connected to the end face of the corresponding sliding block (23), and the other end of each spring (24) is connected to the corresponding protective sleeve (3).

6. The electrical installation cable joint as claimed in claim 5, wherein a stop ring (4) is provided on the inner wall of the protective sleeve (3), the stop ring (4) is slidably engaged with the sliding rod (22), the inner end of the support tube (61) is connected to the outer end face of the stop ring (4), and the spring (24) is connected between the inner end face of the stop ring (4) and the sliding block (23).