WO2020034261A1

WO2020034261A1 - Finger ring type small cable girdling cutter

Info

Publication number: WO2020034261A1
Application number: PCT/CN2018/103099
Authority: WO
Inventors: 冯天骋
Original assignee: 冯天骋
Priority date: 2018-08-16
Filing date: 2018-08-29
Publication date: 2020-02-20

Abstract

A finger ring type small cable girdling cutter, relating to the field of electric tools. Finger rings (17) are symmetrically hingedly connected to two sides of the lower part of the housing (13) of the cutter by means of pin shafts (2); teeth (1) are provided on the finger rings (17); a rack (3) is provided between the teeth (1) on the two finger rings (17); the rack (3) is engaged with the teeth (1) on the finger rings (17); a hole (20) for insertion of a cable (5) is left in the housing (13); the upper side of the hole (20) is provided with an upper snap-fitting portion (6); the upper side of the rack (3) is provided with a lower snap-fitting portion (4); the terminal of the cable (5) can be inserted between the upper snap-fitting portion (6) and the lower snap-fitting portion (4); a girdling knife (15) is provided on the rack (3); the blade of the girdling knife (15) extends upwards from the lower snap-fitting portion (4); lower reset springs (14) for pushing the rack (3) downwards is provided between the rack (3) and the housing (13); a cutting knife (12) is provided in the housing (13) corresponding to the upper snap-fitting portion (6); the cutting knife (12) is disposed on an upper knife holder (11); the upper knife holder (11) is fixed at the lower end of a pressure rod (10); the upper end of the pressure rod (10) passes through the housing (13) and connected with a pressure cap (9); an upper reset spring (7) for pushing the pressure cap (9) upwards is provided between the top in the pressure cap (9) and the upper end surface of the housing (13). The tool is convenient to use, would not easy to fall from fingers, and can be used for girdling and cutting small cables.

Description

Ring type small cable ring stripper

Technical field

The utility model relates to an electric appliance, in particular to a ring stripper for a cable.

Background technique

In home decoration and field construction, it is often necessary to dock the cable ends. When docking, it is necessary to peel off the cable ends, remove the outer sheath, and expose the core wire or core wire conductor for docking or crimping. In the prior art, electrician's pliers are often used to strip the cable in a circular manner. The jaws of the electrician's pliers have a cutting edge, and the cable is held at the cutting edge position. The cutting edge can be cut into the outer sheath of the cable as long as it is cut slightly. , And then pull the cable axially, the sheath at the end of the cable can be peeled off to achieve circular stripping. The disadvantages are as follows: 1. Electrician's pliers are easy to fall off during the operation. When people are working higher, they will easily hurt other operators below it and cause accidents. Second, the construction method of the ring stripping is likely to cause tensile damage to the core conductor, which affects the electrical conductivity of the cable and signal transmission. 3. Although the existing electrician's pliers can also perform the cutting operation, the strength of the cutting and ring peeling depends entirely on the feel, and for people with inexperience, it is easy to cut the cable.

In the Chinese patent database, a manually adjustable cable stripper is disclosed, whose application number is: CN00205018.8; the application date is: 2000-03-20; the publication number: CN2414534Y; the publication date is: 2001-01-10; This device is also a hand tool suitable for stripping the outer sheath of cables and the like. The cross beam is fixedly connected with the guide rod, and the guide rod and the guide frame are slidingly matched to form a rectangular frame with a single side opening. The cross beam and the eccentric cutter assembly are slip-fitted. The cutter assembly includes a slide that is in sliding fit with the beam. The slide is provided with a protrusion to limit the rotation of the sleeve that is matched with the slide. The slide is provided with a spring at the upper end of the sleeve. The sleeve is threaded with the hollow screw. The hollow screw has a sliding fit with the bearing pad, the eccentric tool has a sliding fit with the bearing pad, and a tilt handle is provided on the beam. The device is a tool for longitudinally peeling the cable sheath, which fails to solve the problem of cutting the cable sheath in the ring. In addition, the device cannot also solve the problem of easy off-site construction.

Utility model content

The purpose of the utility model is to provide a ring-type small cable ring stripper, which is convenient to use and not easy to take off, and can realize circular cutting and cutting of the cable end.

The purpose of the utility model is as follows: a ring-type small cable ring stripper, including a housing, which are symmetrically hinged with a ring on both sides of the lower part of the housing through pins, the ring is provided with teeth, and the teeth on the two rings are provided. A rack is provided between the racks and the teeth on the finger ring. The housing is provided with a hole for cable insertion. The upper side of the hole is provided with an upper clamping portion, and the upper side of the rack is provided with a lower clamping connection. Between the upper snap-in part and the lower snap-in part to allow the cable end to be inserted, a ring stripper is installed on the rack, and the blade of the ring stripper protrudes upward from the lower snap-in part, between the rack and the housing A lower return spring pushing down the rack is provided. A cutting knife is arranged in the housing corresponding to the upper clamping part. The cutting knife is installed on the upper knife seat, the upper knife seat is fixed at the lower end of the pressing rod, and the upper end of the pressing rod passes through the shell. A compression cap is connected to the body, and an upper return spring is provided between the inner top of the compression cap and the upper end surface of the casing to push the compression cap upward.

When the utility model is used, there are two ways of use. One is to peel the cable end in a ring shape. First, the cable end is inserted into the hole, so that the position where the ring needs to be cut corresponds to the position of the ring stripper. Insert them into the ring respectively, and gather your fingers to drive the rack to move upwards, so that the ring stripper is inserted into the outer sheath of the cable. Turn the wrist to cut the outer sheath of the cable, and then pull the cable axially. The outer sheath of the cut end of the cable is peeled off. Second, the cable is cut off. After the cable end is inserted into the hole, the index finger and middle finger are inserted into the ring respectively. Go down and cut the cable. The beneficial effect of the utility model is that the device realizes ring stripping and cutting of the cable end by one-handed operation. During operation, two fingers are inserted into the ring, the tool is not easy to take off, and it is safe and reliable to use. The device is dedicated to small Cable stripping and cutting.

As a further improvement of the present utility model, the lower snap-in portion is a lower groove with a high height on both sides and a low middle, and the upper snap-in portion is an upper groove with a low height on both sides and a middle. The lower and upper grooves allow better cable retention.

As a further improvement of the present utility model, the cutting blade and the ring stripping blade are disposed in a dislocation in a thickness direction of the casing. The misalignment setting can avoid the interference between the cutter and the ring stripper.

As a further improvement of the utility model, a limiting step is provided in the housing, protrusions are provided on both sides of the rack corresponding to the limiting step, and the lower end of the lower return spring is in contact with the upper side of the protrusion. The structure is easy to manufacture, and the lower return spring is reasonably installed and fixed.

As a further improvement of the utility model, the ring stripper is provided with a waist-shaped hole in the longitudinal direction, and the ring stripper is fixed on the rack through a locking screw. The waist-shaped groove design can adjust the protruding height of the ring stripper, and it can be adjusted for the outer jackets of cables of different thicknesses.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a left side view of the present utility model, and only the cutting knife and the ring peeling knife are shown in the drawing.

FIG. 3 is a working principle diagram of a ring stripped cable end of the present invention.

FIG. 4 is a working principle diagram of the cut cable of the present invention.

Among them, 1 tooth, 2 pin shafts, 3 racks, 4 lower engaging parts, 5 cables, 6 upper engaging parts, 7 return springs, 8 screws, 9 pressure caps, 10 pressure rods, 11 upper knife holders, 12 Cutting knife, 13 shells, 14 return springs, 15 ring strippers, 16 waist holes, 17 finger rings, 18 limit steps, 19 protrusions, 20 holes.

detailed description

As shown in Figure 1-4, it is a ring-type small cable ring stripper, which includes a flat structure on the side of the housing 13 and a square, circular or oval shape on the front side for easy holding by the hands. The lower part of the housing 13 Finger rings 17 are symmetrically hinged on the pin shafts 2 on both sides, and a tooth 1 is partially provided on the finger ring 17. A rack 3 is provided between the teeth 1 on the two finger rings 17. The rack 3 and the tooth 1 on the finger ring 17 mesh with each other. The finger ring 17 can drive the rack 3 to move. The housing 13 is provided with a hole 20 for the cable 5 to be inserted. The upper side of the hole 20 is provided with an upper snap-in portion 6, and the upper snap-in portion 6 is an upper recess with a lower middle side and a lower side. Groove, the lower side of the rack 3 is provided with a lower snap-in portion 4, and the lower snap-in portion 4 is a lower groove with a high middle and a low on both sides; the end of the cable 5 can be accommodated between the upper snap-in portion 6 and the lower snap-in portion 4 Insert the ring stripper 15 on the rack 3. The ring stripper 15 is provided with a waist-shaped hole 16 in the longitudinal direction. The ring stripper 15 is fixed to the rack 3 by a locking screw. The blade of the ring stripper 15 is stuck from below. The connecting portion 4 projects upward, and a lower return spring 14 pushing down the rack 3 is provided between the rack 3 and the housing 13. A limiting step 18 is provided in the housing 13, and both sides of the rack 3 and the limiting step are provided. Corresponding to the protrusion 18 The lower end of the spring 14 is in contact with the upper side of the protrusion 19; a cutting blade 12 is provided in the housing 13 corresponding to the upper clamping portion 6, the cutting blade 12 is installed on the upper blade holder 11, and the upper blade holder 11 is fixed on the lower end of the pressing rod 10. An upper end of the pressing rod 10 passes through the casing 13 and is connected with a pressing cap 9. An upper return spring 7 for pushing the pressing cap 9 upward is provided between the inner top of the pressing cap 9 and the upper end surface of the casing 13. The cutting blade 12 and the ring-stripping blade 15 are offset from each other in the thickness direction of the casing 13. The pressure cap 9 is mounted on the top of the pressure rod 10 by screws 8, and the reset spring 7 can be disassembled and attached by removing the screws 8.

The overall size of the device can be made into a size that can be grasped with one hand.

When in use, there are two ways of use. One, as shown in Figure 3, the end of the cable 5 is circularly stripped. First, the end of the cable 5 is inserted into the hole 20, so that the position where the ring needs to be cut and the position where the ring is stripped 15 Correspondingly, the forefinger and middle finger are inserted into the ring 17 respectively, and the fingers can be pulled together to drive the rack 3 to move upward, so that the ring stripper 15 is inserted into the outer sheath of the cable 5, and the outer sheath of the cable 5 can be rotated by turning the wrist. Cut and then pull the cable 5 axially to peel off the outer sheath of the end of the cut cable 5; it only needs to adjust the extension length of the ring stripper 15. When the ring is stripped, it does not need to be controlled by hand. The cutting depth of the ring stripping knife 15 can be fully tightened. Second, as shown in FIG. 4, after cutting the cable, the end of the cable 5 is inserted into the hole 20, and the index finger and the middle finger are respectively inserted into the ring 17 to gather the fingers. At the same time, the pressing cap 9 is pressed with the root of the palm, 12 pieces of cutting blades go down, and the cable 5 is cut.

The present invention is not limited to the above embodiments. On the basis of the technical solution disclosed by the present invention, those skilled in the art can make some technical features based on the disclosed technical content without creative labor. Replacement and deformation, all of which are within the protection scope of the present invention. For example, a lateral opening may be provided on the casing 13 so that the cable 5 can be snapped into the hole 20 from the side.

Claims

A ring-type small cable ring stripping cutter includes a casing, which is characterized in that: finger rings are symmetrically hinged on both sides of the lower part of the casing via pins, teeth are provided on the ring, and racks are provided between the teeth on the two finger rings. The rack and the teeth on the finger ring mesh with each other, and a hole is formed in the housing to allow the cable to be inserted. The upper side of the hole is provided with an upper clamping portion, and the upper side of the rack is provided with a lower clamping portion. The cable end can be inserted between the lower part and the lower clamping part. A ring stripper is installed on the rack. The blade of the ring stripper protrudes upward from the lower clamping part. There is a downward push between the rack and the housing. The lower return spring of the squeeze rack is provided with a cutting blade in the housing corresponding to the upper clamping portion. The cutting blade is installed on the upper knife holder. The upper knife holder is fixed at the lower end of the pressing rod. The upper end of the pressing rod passes through the casing and is connected with the pressing rod. For the cap, an upper return spring is provided between the inner top of the pressing cap and the upper end surface of the shell to push the cap upward.
The ring-type small cable ring stripper according to claim 1, wherein the lower snap-in portion is a lower groove with high middle and lower sides, and the upper snap-in portion is a lower with high middle and lower sides. On the groove.
The ring-type small cable ring peeling cutter according to claim 1, wherein the cutting knife and the ring peeling knife are disposed in a displacement direction in a thickness direction of the casing.
The ring-type small cable ring stripper according to any one of claims 1-3, characterized in that: the housing is provided with a limiting step, and the two sides of the rack are provided with protrusions corresponding to the limiting step, and the bottom is reset The lower end of the spring is in contact with the upper side of the protrusion.
The ring-type small cable ring stripper according to any one of claims 1-3, wherein the ring stripper is provided with a waist-shaped hole in the longitudinal direction, and the ring stripper is locked through the waist-shaped hole. The screws are fixed to the rack.
The ring-type small cable ring stripper according to any one of claims 1 to 3, wherein the side of the casing has a flat structure.