CN215835121U

CN215835121U - Weak current cable with good shielding property

Info

Publication number: CN215835121U
Application number: CN202121711376.5U
Authority: CN
Inventors: 巫文娟; 韦沛明
Original assignee: Shenzhen Lischen Technology Co ltd
Current assignee: Shenzhen Lischen Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-15
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a weak current cable with good shielding property, and belongs to the field of weak current. The utility model provides a weak current cable that shielding nature is good, includes lower casing and last casing, still includes: the fixing frame is fixedly connected to the lower shell; the fixing frame is internally provided with a sliding groove and two groups of placing grooves, the two groups of placing grooves are respectively positioned on two sides of the fixing frame, and the two groups of placing grooves are communicated with the sliding groove; the screw rod is in threaded connection with the fixed frame; the fixed block is rotationally connected to the screw rod; the fixed block is connected in the sliding groove in a sliding manner; the wire fixing device is simple to use and convenient to operate, the fixing block is used for extruding and clamping the wire into the arc-shaped groove, the contact area of the wire and the fixing block is increased, the signal transmission efficiency of the wire is increased, the signal transmission resistance is reduced, meanwhile, the fixing block is extruded and expanded through the conical block, the wire fixing effect is improved, the wire is prevented from loosening and being separated from the fixing block, and the signal transmission stability of the wire is improved.

Description

Weak current cable with good shielding property

Technical Field

The utility model relates to the technical field of weak current, in particular to a weak current cable with good shielding property.

Background

The weak current cable is used for security communication, electrical equipment and related weak current transmission purposes, the existing weak current cable usually adopts a multi-core conductor, the connection mechanism for connecting the weak current cable and the weak current cable is various, the weak current cable comprises a screw rod provided with an inner cavity and a nut through which a lead passes from the center, a hollow insulator is arranged in the cavity of the screw rod and the nut, an inner cone with a hole in the center is arranged in the middle hole of the insulator and matched with a wiring outer cone, the lead penetrates into the inner cone from the center of the inner cone, the lead is extruded between the outer cone and the inner cone after the screw rod and the nut are assembled, and the lead is communicated with the lead.

The existing connection mode is that two groups of wires are extruded, so that the two groups of wires are communicated, the contact area of the wires is too small, the signal transmission efficiency between the wires is reduced, meanwhile, in the long-time use process, the extrusion device is easy to loosen, the extrusion force degree of the wires is reduced, the wires are linearly loosened and separated, the signal transmission is unstable, and therefore the weak current cable with good shielding performance is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, two groups of conducting wires are communicated by extruding the two groups of conducting wires, the signal transmission efficiency between the conducting wires is reduced due to the fact that the contact area of the conducting wires is too small, meanwhile, in the long-time use process, an extruding device is easy to loosen, the extrusion force degree of the conducting wires is reduced, the conducting wires are loosened and separated linearly, and the signal transmission is unstable.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a weak current cable that shielding nature is good, includes lower casing and last casing, still includes: the fixing frame is fixedly connected to the lower shell; the fixing frame is internally provided with a sliding groove and two groups of placing grooves, the two groups of placing grooves are respectively positioned on two sides of the fixing frame, and the two groups of placing grooves are communicated with the sliding groove; the screw rod is in threaded connection with the fixed frame; the fixed block is rotationally connected to the screw rod; the fixed block is connected in the sliding groove in a sliding mode, two groups of arc-shaped grooves are formed in the fixed block, the two groups of arc-shaped grooves are respectively in the same straight line with the two groups of placing grooves, and a conical groove is formed in the bottom of the fixed block; the conical block is fixedly connected to the bottom of the sliding chute; wherein, the conical block is positioned right below the conical groove.

Preferably, the fixing frame is fixedly connected with a hollow pipe, the hollow pipe is located on the placing groove, a nut is connected to the hollow pipe in a threaded mode, and one end, far away from the fixing frame, of the hollow pipe is a cone expanding outwards and a through groove is formed in the hollow pipe.

Preferably, the fixed frame has a plurality of groups, and the fixed frame is installed in a front-back staggered manner.

Preferably, wire inlet grooves are formed in the two ends of the lower shell and the two ends of the upper shell, and insulating sleeves are arranged on the wire inlet grooves.

Preferably, the upper shell is fixedly connected with a shielding sleeve, the shielding sleeve is provided with a limiting groove, and the shielding sleeve is connected to the fixing frame in a sliding manner.

Preferably, the lower shell and the upper shell are fixedly connected through a locking member.

Compared with the prior art, the utility model provides a weak current cable with good shielding property, which has the following beneficial effects:

1. this kind of weak current cable that shielding nature is good extrudees the wire through the fixed block, and the wire card is gone into to the arc wall when bending downwards, pastes with the fixed block in the arc wall mutually through the wire, increases the area of wire and fixed block contact, improves wire signal transmission's efficiency, reduces signal transmission's resistance.

2. This kind of weak current cable that shielding nature is good extrudees the bell jar through the toper piece, makes the bell jar expand to both sides, makes the fixed block extrude the wire to both sides, and further improvement wire and the area of fixed block contact reduce under long-time use wire and the contact of fixed block appear not hard up, improve signal conduction's stability.

The device has the advantages that the device is simple to use and convenient to operate, the fixing block is used for extruding and clamping the lead into the arc-shaped groove, the contact area of the lead and the fixing block is increased, the signal transmission efficiency of the lead is improved, the signal transmission resistance is reduced, meanwhile, the fixing block is extruded and expanded through the conical block, the fixing effect of the lead is improved, the lead is prevented from loosening and being separated from the fixing block, and the signal transmission stability of the lead is improved.

Drawings

Fig. 1 is a schematic structural diagram of a lower shell of a weak current cable with good shielding performance according to the present invention;

fig. 2 is a schematic structural diagram of a lower shell and an upper shell of a weak current cable with good shielding performance according to the present invention;

fig. 3 is a schematic structural diagram of an upper shell of a weak current cable with good shielding performance according to the present invention;

fig. 4 is a schematic three-dimensional structural view of a weak current cable fixing frame with good shielding performance according to the present invention;

fig. 5 is a three-dimensional cross-sectional view of a weak current cable fixing frame with good shielding performance according to the present invention;

fig. 6 is a cross-sectional view of a weak current cable fixing frame with good shielding performance according to the present invention;

fig. 7 is a schematic structural diagram of a weak current cable fixing block with good shielding performance according to the present invention.

In the figure: 1. a lower housing; 101. a wire inlet groove; 102. an insulating sleeve; 2. an upper housing; 201. a shielding sleeve; 202. a limiting groove; 3. a fixed mount; 301. a chute; 302. a placement groove; 4. a screw rod; 5. a fixed block; 501. an arc-shaped slot; 502. a tapered groove; 6. a conical block; 7. a hollow tube; 8. a nut; 9. and a locking member.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 7, a weak current cable with good shielding performance includes a lower case 1 and an upper case 2, and further includes: the fixed frame 3 is fixedly connected to the lower shell 1; the fixing frame 3 is internally provided with a sliding chute 301 and two placing grooves 302, two groups of placing grooves 302 are respectively positioned at two sides of the fixing frame 3, and the two groups of placing grooves 302 are communicated with the sliding chute 301; the screw rod 4 is in threaded connection with the fixed frame 3; the fixed block 5 is rotationally connected to the screw rod 4; the fixed block 5 is connected in the sliding groove 301 in a sliding manner, two groups of arc-shaped grooves 501 are formed in the fixed block 5, the two groups of arc-shaped grooves 501 are respectively in the same straight line with the two groups of placing grooves 302, and a conical groove 502 is formed in the bottom of the fixed block 5; the conical block 6 is fixedly connected to the bottom of the sliding groove 301; wherein, conical block 6 is located under conical groove 502, fixedly connected with hollow tube 7 on mount 3, hollow tube 7 is located standing groove 302, threaded connection has nut 8 on hollow tube 7, hollow tube 7 keeps away from the one end of mount 3 and has seted up logical groove for outside expansion's toper and hollow tube 7, mount 3 has the multiunit, and crisscross installation around being, wire inlet 101 has all been seted up at casing 1 and last casing 2 both ends down, be provided with insulating cover 102 on the wire inlet 101, go up fixedly connected with housing 201 on the casing 2, spacing groove 202 has been seted up on the housing 201, housing 201 sliding connection is on mount 3, link to each other through retaining member 9 is fixed between casing 1 and the last casing 2 down.

The utility model relates to a weak current cable with good shielding property, which comprises a lower shell 1 and an upper shell 2, wherein the weak current cable to be connected is placed in the lower shell 1 through a wire inlet groove 101 on the lower shell 1 and the upper shell 2, then a protective layer on the weak current cable is stripped to expose a lead, two groups of leads to be connected are respectively inserted into a sliding groove 301 on a fixed frame 3 through placing grooves 302 on two sides of the fixed frame 3, then a screw rod 4 is rotated, a fixed block 5 is driven by the screw rod 4 to move downwards to extrude the lead, so that the two groups of weak current cables are connected, and the fixed block 5 is a copper block.

Referring to fig. 5, fig. 6, fig. 7, two sets of placing grooves 302 are respectively opened in tandem in both sides of mount 3, the wire inserted into placing groove 302 is separated, arc 501 has been seted up on fixed block 5 simultaneously, the position of arc 501 and the position of placing groove 302 are on same straight line, when fixed block 5 moves down, extrude the wire through fixed block 5, the wire is blocked into arc 501 in the time of bending downwards, paste mutually with fixed block 5 in arc 501 through the wire, increase the area that wire and fixed block 5 contacted, improve wire signal transmission's efficiency, reduce signal transmission's resistance.

More closely, when fixed block 5 moved down, toper piece 6 slided in toper groove 502, and the size of toper piece 6 is greater than toper groove 502, extrudees toper groove 502 through toper piece 6, makes toper groove 502 expand to both sides, makes fixed block 5 extrude to both sides to the wire, and further improvement wire and fixed block 5 area of contact reduces under the long-time use wire and fixed block 5's contact and appears becoming flexible, improves signal transmission's stability.

Referring to fig. 4, after the lead is fixed, the nut 8 moves outwards on the hollow tube 7 by rotating the nut 8, and the outwards expanded position on the hollow tube 7 is extruded, so that the hollow tube 7 at the over-expanded position extrudes and clamps the shell of the lead, the fixing effect on the lead is improved, and the lead is prevented from loosening.

Referring to fig. 1 and 2, the fixing frame 3 is installed on the lower shell 1 in a front-back staggered manner, so that interference at the joint is reduced, operation safety is improved, the wire inlet grooves 101 in the lower shell 1 and the upper shell 2 are sealed through the insulating sleeves 102, sealing effect is improved, and meanwhile the lower shell 1 and the upper shell 2 are fixed through the locking pieces 9.

Go up and be provided with the shield cover 201 on the casing 2, cup joint on the 3 outer walls of mount through shield cover 201, protect the junction, seted up spacing groove 202 joint on shield cover 201 on the 7 outer walls of hollow tube, the radiation that produces when reducing the electrical apparatus operation causes the interference to the junction, improves junction signal transmission's safety.

The wire fixing device is simple to use and convenient to operate, the wire is extruded and clamped into the arc-shaped groove 501 through the fixing block 5, the contact area of the wire and the fixing block 5 is increased, the signal transmission efficiency of the wire is improved, the signal transmission resistance is reduced, meanwhile, the fixing block 5 is extruded and expanded through the conical block 6, the wire fixing effect is improved, the wire is prevented from loosening and being separated from the fixing block 5, and the signal transmission stability of the wire is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a weak current cable that shielding nature is good, includes casing (1) and last casing (2) down, its characterized in that still includes:

the fixing frame (3) is fixedly connected to the lower shell (1);

the fixing frame (3) is internally provided with a sliding groove (301) and two placing grooves (302), two groups of placing grooves (302) are respectively positioned on two sides of the fixing frame (3), and the two groups of placing grooves (302) are communicated with the sliding groove (301);

the screw rod (4) is in threaded connection with the fixing frame (3);

the fixed block (5) is rotationally connected to the screw rod (4);

the fixing block (5) is connected in a sliding groove (301) in a sliding mode, two groups of arc-shaped grooves (501) are formed in the fixing block (5), the two groups of arc-shaped grooves (501) are respectively in the same straight line with the two groups of placing grooves (302), and a conical groove (502) is formed in the bottom of the fixing block (5);

the conical block (6) is fixedly connected to the bottom of the sliding groove (301);

wherein the conical block (6) is positioned right below the conical groove (502).

2. The weak current cable with good shielding property according to claim 1, wherein a hollow tube (7) is fixedly connected to the fixing frame (3), the hollow tube (7) is located on the placing groove (302), a nut (8) is connected to the hollow tube (7) in a threaded manner, one end of the hollow tube (7) far away from the fixing frame (3) is in an outward-expanding conical shape, and a through groove is formed in the hollow tube (7).

3. The weak current cable with good shielding property according to claim 1, wherein the fixing frame (3) has a plurality of groups and is installed in a front-back staggered manner.

4. The weak current cable with good shielding property according to claim 1, wherein both ends of the lower shell (1) and the upper shell (2) are provided with wire inlet grooves (101), and the wire inlet grooves (101) are provided with insulating sleeves (102).

5. The weak current cable with good shielding property according to claim 1, wherein a shielding sleeve (201) is fixedly connected to the upper housing (2), a limiting groove (202) is formed in the shielding sleeve (201), and the shielding sleeve (201) is slidably connected to the fixing frame (3).

6. The weak current cable with good shielding property according to claim 1, wherein the lower shell (1) and the upper shell (2) are fixedly connected through a locking piece (9).