WO2021051235A1

WO2021051235A1 - Multipurpose optical fiber stripping pliers

Info

Publication number: WO2021051235A1
Application number: PCT/CN2019/105957
Authority: WO
Inventors: 罗春晖
Original assignee: 四川灼识科技股份有限公司
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2021-03-25
Also published as: CN111556978A

Abstract

Multipurpose optical fiber stripping pliers, comprising: a first plier body (21) and a second plier body (22), the first plier body(21) and the second plier body (22) being mutually hinged together, the side of the first plier body (21) and the second plier body (22) located at the hinged position being a jaw (5), and the other side being handles (1, 9), the jaw (5) having cutting edge portions (6) cooperating with each other and being used for a coating layer of a glass bare optical fiber; the multipurpose optical fiber stripping pliers further comprise a support (17) which is provided between the handles (1, 9) of the first plier body (21) and the second plier body (22), a through hole (171) being provided on the support (17), the through hole (171) being used for a covered fiber-optic cable to pass through, the side wall of the through hole (171) being used for supporting the covered fiber-optic cable passing therethrough; the multipurpose optical fiber stripping pliers further comprise a first stripping blade (2) and a second stripping blade (11) which are respectively located at either side of the through hole (171) and able to move into the through hole (171) along with the relative movement of the handles (1, 9), the first stripping blade (2) and the second stripping blade (11) cooperating with each other, along with the movement thereof into the through hole (171), to cut metal wires and a jacket in a covered fiber-optic cable. The multipurpose optical fiber stripping pliers can be conveniently used for stripping a jacket and/or an optical fiber coating layer.

Description

Multi-purpose fiber stripper

Technical field

The invention relates to an optical fiber stripping tool, in particular to a multi-purpose fiber stripping pliers.

Background technique

Fiber fusion splicing requires peeling off the ends of the two fibers, peeling off the coating on the fiber, and then cleaning the fiber with alcohol before fusion splicing. Covered cable is widely used as a type of home optical fiber. Welding the covered cable requires multiple corresponding tools to complete. First, the metal wires and sheaths on both sides of the optical fiber in the covered cable need to be cut off. The optical fiber is exposed, and then the coated glass on the exposed optical fiber is removed. Stripping and cutting the metal wire require special wire stripping pliers, while stripping the optical fiber coating requires the use of Miller pliers.

The sheathed optical fiber cable includes an optical fiber in the center, a metal wire respectively arranged on both sides of the optical fiber, and a skin covering the optical fiber and the metal wire. When stripping, it is necessary to cut off the skin and the metal wires on both sides, leaving the optical fiber in the center. In order to form a better cutting effect, the existing leather wire stripper usually adopts two handles respectively hinged on a base, and the cutting action is completed when the two handles are squeezed inward. For example, the Chinese Utility Model (Publication No. CN204462445U) discloses a covered cable stripping pliers, as shown in Figure 1, which includes a base with a horizontally arranged wire inlet, symmetrical to the wire inlet axis and hinged on the base The two handles on the seat, the feed slot perpendicular to the line hole axis and through the base, and the upper blade and the lower blade that are driven by the two handles and cut along the feed slot; the front of the upper blade The side is made with a supporting ridge that is suspended and extended to cooperate with the blade back of the lower blade to bend the steel wire in the optical fiber. The similar structure of the wire stripper is disclosed in the Chinese invention patent (publication number CN104238015B) and the Chinese utility model patent (publication number CN201876566U, CN202794593U, CN208351043U).

After cutting off the skin and metal wire at the end of the sheathed optical fiber cable, the surface coating layer of the exposed optical fiber needs to be peeled off. The Miller clamp is usually used to strip the coating on the surface of the optical fiber. A wire stripper (Miller pliers) is disclosed in the Chinese utility model patent 201820441006.6, as shown in Figure 2, which includes a first pliers body and a second pliers body, the first pliers body is connected with a first pliers handle, The second pliers body is connected with a second pliers handle, and the blades of the first pliers body and the second pliers body are both provided with a wire stripping slot for wire stripping. When the first pliers body and the second pliers body are closed, the wire is stripped The groove can strip the coating on the surface of the optical fiber.

Obviously, using a variety of fiber stripping pliers to handle the sheathed optical cable will cause inconvenience to users. People have made various attempts to combine the functions of the two pliers into one pliers. For example, in the U.S. Patent (Publication No. US09958610B2) a sheathed cable fiber stripper is disclosed, as shown in Figure 3, which includes a first handle, a second handle, a first stripper, a second stripper, and a reference block The first handle and the second handle are movably connected with the reference block through the handle shaft. The first stripper knife and the second stripper knife are set straight on the first handle and the second handle respectively through the blade shaft. The reference block The optical fiber guide channel for the straight-covered cable fiber to pass through is provided on the fiber guide channel. The optical fiber guide channel includes the sheathed cable stripping sub-channel for stripping the sheath of the sheathed cable and the bare fiber coating layer for stripping the bare fiber coating. Stripping the sub-channels, the sheathed cable stripping sub-channels and the bare fiber coating stripping sub-channels are parallel, and are respectively set straight with the first stripping knife and the second stripping knife in the upper and lower shearing directions through which the optical fiber guide channel penetrates. The remote blade positioning guide channel of the stripper knife, the first stripper knife and the second stripper knife move up and down in the blade positioning guide channel to cut the object to be cut. The sheathed cable fiber stripper of this patent is provided with a sheathed cable sheath stripping sub-channel for stripping sheathed cables and a bare fiber coating stripping sub-channel for stripping bare fiber coatings. It can achieve the functions of stripping the sheath of the sheathed cable and stripping the coating layer of the bare fiber. However, the sheathed cable fiber stripper is not convenient when it is used to separate the bare fiber coating.

Summary of the invention

In view of the problems existing in the prior art, the purpose of the present invention is to provide a multi-purpose fiber stripper capable of stripping the sheath of the sheathed cable and stripping the coating layer of the bare fiber.

In order to achieve the above objectives, the technical solutions adopted by the present invention are as follows:

A multi-purpose fiber stripper, including:

The first pliers body and the second pliers body, the first pliers body and the second pliers body are hinged to each other, one side of the first pliers body and the second pliers body at the hinge is the jaw, and the other side is the pliers A handle, wherein the jaws have blades that cooperate with each other for the coating layer of bare glass fiber;

It is characterized in that it also includes:

The bracket is arranged between the pliers handles of the first pliers body and the second pliers body. The bracket has a through hole for passing the sheathed optical cable, and the side wall of the through hole is used for aligning Pass through the leather cable to form a support;

The first stripping knife and the second stripping knife are located on both sides of the through hole, and can move into the through hole with the movement of the pliers handle, and as the two move into the through hole, the first stripping knife It cooperates with the second stripping knife to cut the metal wire and the skin in the sheathed optical cable.

Some preferred technical solutions of the present invention are as follows:

Preferably, the first pliers body and the second pliers body are hinged together by a hinge shaft, and the bracket is hinged on the hinge shaft and can swing between the pliers handles of the first pliers body and the second pliers body.

Preferably, the through hole on the bracket is perpendicular to the plane where the first pliers body and the second pliers body are located, and the through hole is a rectangular hole, and a short side of the rectangular hole is located near the hinge joint. With this arrangement, the stripping knife can be conveniently arranged inside the pliers handle. When the pliers handle is gripped, the stripping knife moves toward each other to directly cut the sheathed optical cable.

Preferably, an elastic element is respectively installed between the bracket and the pliers handles of the first pliers body and the second pliers body.

Preferably, the first stripping knife is provided with a first opening groove, and the second stripping knife is provided with a second opening groove, and the first opening groove and the second opening groove are relatively used for accommodating optical fibers.

Preferably, the elastic modulus of the elastic element ranges from 300 N/m to 10000 N/m.

Preferably, the elastic element is symmetrically arranged with respect to the bracket.

Preferably, the first stripping knife is installed on the first pliers body, and the second stripping knife is installed on the second pliers body.

Preferably, the first stripping knife and the second stripping knife are installed in the bracket, and the closing movement of the first pliers body and the second pliers body can push the first stripping knife and the second stripping knife to move toward each other.

Preferably, N blades are provided at the jaws, where N is an integer greater than 1, and different blades are used to process coating layers of optical fibers with different diameters.

Preferably, a first cleaning component is installed on the first pliers body, and a second cleaning component is installed on the second pliers body. The movement of the first pliers body and the second pliers body can drive the first cleaning component and the second cleaning component. Parts are touching or separating.

Preferably, the first cleaning component and the second cleaning component are cylindrical, and are respectively mounted on the first pliers body and the second pliers body through a shaft.

Preferably, a cutter is also provided on the multi-purpose fiber stripper.

Preferably, a first cutting knife is arranged on the first pliers body, and a second cutting knife is arranged on the second pliers body, and the first cutting knife and the second cutting knife are positioned correspondingly and arranged on one side of the jaws, It can be closed with the closing of the first pliers body and the second pliers body.

Preferably, the first cleaning component and the second cleaning component are arranged on the opposite side of the cutter, and the first pliers body and the second pliers body are arranged between the first pliers body and the second pliers body on this side. Adjusting device for the pitch in the closed state.

Preferably, the adjusting device is a bolt, one end of which is threadedly fitted with one of the first pliers body and the second pliers body, and the other end is a free end. When the first pliers body and the second pliers body are in a closed state, The free end is in contact with the other of the first clamp body and the second clamp body to limit the position.

One beneficial effect of the present invention is that the jaws can be used to strip the coating layer of the optical fiber, and the cooperation of the first stripping knife and the second stripping knife with the bracket can be effectively used to cut the metal wire and the skin in the sheathed optical fiber cable. , So that the user can complete the work of stripping the sheathed wire and the coating layer of the optical fiber without changing the pliers, and can also be used alone to strip the sheathed wire or the coating layer of the optical fiber. In some preferred embodiments of the present invention, it is also possible to complete the work of stripping the sheath wire and the coating layer of the optical fiber, removing the loose tube of the optical fiber, the polyester filament, and completing the cleaning of the optical fiber without changing the pliers. The advantages of the present invention will be further described below in conjunction with specific embodiments.

Description of the drawings

Figures 1-3 are schematic diagrams of the prior art.

Figure 4 is a schematic diagram of an embodiment of the present invention.

Fig. 5 is a rear view of the embodiment shown in Fig. 4.

Fig. 6 is a cross-sectional view along M-M in the embodiment shown in Fig. 4.

Fig. 7 is a schematic diagram of the stent in the embodiment shown in Fig. 4.

Figures 8 to 9 are schematic diagrams of another embodiment of the present invention.

detailed description

Hereinafter, various embodiments of the present invention will be described in detail, and examples thereof will be illustrated with the accompanying drawings. Although the present invention will be described in conjunction with the following embodiments, it should be understood that these descriptions are not intended to limit the present invention to these embodiments. On the contrary, the present invention is intended to cover those substitutions, modifications and equivalents that may be included in the spirit and scope of the present invention. Moreover, in the following detailed description, many specific details are clarified to facilitate a thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention may be implemented without using these specific details. In other instances, well-known methods, procedures, components, and materials have not been described in detail so as not to unnecessarily obscure the relevant aspects of the present invention.

An embodiment of the present invention, as shown in FIG. 4, a multi-purpose fiber stripper includes a first pliers body 21 and a second pliers body 22, the first pliers body 21 and the second pliers body 22 through a hinge shaft 15 hinged together. One side of the first pliers body 21 and the second pliers body 22 at the hinge joint is the pliers mouth 5, and the other side is the pliers handle 1 and the pliers handle 9. Blade 6. The blade 6 can be designed with multiple openings of different sizes according to needs, for cooperating to strip the coatings of optical fibers of different diameters (for example, openings of 0.2 mm, 0.5 mm, 1 mm, etc.).

The design of the pliers body, jaws, hinge shaft and pliers handle can refer to the structure of the existing stripper or pliers, and those skilled in the art can adjust according to their needs, for example: refer to the design of the existing Miller pliers jaws or pliers handle , Choose different shapes or specifications.

The fiber stripper of this embodiment is also provided with a bracket 17 between the pliers handle 1 and the pliers handle 9. As shown in FIGS. 4 and 6, a through hole 171 is provided on the bracket 17, and the direction of the through hole 171 is It is perpendicular to the plane where the pliers handle 1 and the pliers handle 9 are located, and through holes 172 are provided on both sides of the through hole 171. The size of the through hole 171 is usually slightly larger or the same as the outer contour of the covered cable (for example, the through hole 171 can be a 2mm×3mm rectangular hole, and the long side of the rectangle is close to parallel to the clamp handle). The through hole 171 passes through, and the shape of the through hole 171 is set so that the optical fiber is in the center of the sheathed optical fiber cable passing through, and the metal wire is above and below the optical fiber (that is, one metal wire is close to the jaws, and the other The wire is close to the open ends of the pliers handle 1 and the pliers handle 9). The through hole 172 is used as a passage for the stripping knife to pass through, and the stripping knife on both sides cuts the sheathed fiber at the position of the through hole 171. Blind holes 173 are also provided on both sides of the bracket 17, and the blind holes 173 are used to install the spring. A spring 13 is installed between the blind hole 173 on one side of the bracket 17 and the pliers handle 1, and the blind hole 173 is installed on the other side of the bracket 17. A spring 12 is installed between the hole 173 and the pliers handle 9. The spring 12 and the spring 13 are usually symmetrically arranged to provide a certain elastic restoring force to keep the bracket 17 in the middle or close to the middle of the pliers handle 1 and the pliers handle 9. In some specific embodiments, the elastic coefficients of spring 12 and spring 13 range from 300N/m to 10000N/m (for example, 300N/m, 500N/m or 3000N/m, etc.). Choosing an appropriate elastic coefficient can be used in cutting For different sheathed optical cables, the force of the stripper on the sheathed optical cable is more balanced, and a good cutting effect can be obtained. In different embodiments, the elastic coefficient of the spring 12 or the spring 13 can also be selected arbitrarily, or in some embodiments, the spring 12 and the spring 13 can also be eliminated, and only the bracket 17 can swing between the clamp handles 1 and 9 That's it.

As shown in Figures 4 and 5, a first stripping knife 2 is installed on the pliers handle 1, a second stripping knife 11 is installed on the pliers handle 9, and a first opening slot (for example, 0.8 mm wide opening slot, this width can be used for single core covered wire optical cable, can also be used for double core covered wire optical cable), on the second stripping knife is provided with a second opening slot, first opening slot and second opening slot Relatively used to accommodate optical fibers. In this way, when the pliers handle 1 and the pliers handle 9 move towards each other, the first stripping knife 2 and the second stripping knife 11 will move towards each other, and the first stripping knife 2 and the second stripping knife 11 will enter the passages on both sides of the through hole 171 respectively. Hole 172, and gradually converge on both sides of the sheathed fiber optic cable in the through hole 171. When the first stripping knife 2 and the second stripping knife 11 continue to move towards each other, it will cut the sheathed fiber optic cable, cutting the metal wire and skin. , And the optical fiber part is left in the space formed by the first opening groove and the second opening groove. After the covered cable enters the through hole 171, the covered cable can be well positioned on the side wall of the through hole 171, and then the first stripping knife 2 and the second stripping knife 11 cut the covered cable from the side. A stripping knife 2 and a second stripping knife 11 cooperate with the side wall of the through hole 171 to form a good positioning of the sheathed optical fiber cable. Since the metal wire of the sheathed optical cable is cut, a strong stress will be applied to the cut. If the sheathed optical cable cannot form a good support in the through hole 171, it will cause the sheathed optical cable to receive uneven force at the cut. As a result, bending or cutting failure occurs. In some other embodiments, the stripping knife can also be installed in the bracket. The stripping knife can slide in the bracket and cut the sheathed optical cable in the through hole, and the pliers handle passes through a transmission component, such as a protrusion or other Commonly used push parts push the stripping knife. This setting can ensure that the stripping knife only makes a linear cutting movement in the direction perpendicular to the through hole or along a certain line. After the cutting is completed, the stripping knife is reset by the reset device That's it. The resetting device can use elastic elements or other mechanical resetting devices commonly used in the art.

In order to facilitate the user to perform multiple treatments on the optical fiber to be processed (fusion spliced) without changing the pliers, on the basis of the above-mentioned embodiment, a first cleaning component 4 may be installed on the first pliers body 21. A second cleaning component 3 is installed on the pliers body 22, as shown in Figs. 4 and 7. The movement of the first pliers body 21 and the second pliers body 22 can drive the first cleaning component 4 and the second cleaning component 3 to contact or separate. In this embodiment, the first cleaning component 4 and the second cleaning component 3 are cylindrical cleaning cottons, which are respectively mounted on the first pliers body 21 and the second pliers body 22 through shafts. The cleaning cotton can be dipped in alcohol to wipe the fiber after the coating is stripped. For example, when the fiber after the coating is removed from the jaw 5, put it between the cleaning cotton, and then hold the grip of the clamp. , The two cleaning cottons touch, clamp the optical fiber in it, and pull the optical fiber to finish wiping. The cleaning cotton can be rotated around the axis, and the wiping effect is better. After the cleaning cotton is dirty, it can be easily removed and replaced.

In some other embodiments, the multi-purpose fiber stripper may also be provided with a cutting knife 7, as shown in Figures 4 and 7, the cutting knife 7 is arranged on the first pliers body 21, located at the jaw 5 Outside, the side opposite to the cleaning cotton. The cutter 7 can be used to cut the fiber thread in the skin or the sheathed optical cable.

In other embodiments, the cutters may be respectively arranged on the first pliers body 21 and the second pliers body 22, for example, as shown in FIG. 4, the first pliers body 21 is provided with a first cutter 10, A second cutting knife 9 is provided on the second pliers body 22. The first cutting knife 10 and the second cutting knife 9 are positioned correspondingly and arranged on one side of the jaw 5, the first cutting knife 10 and the second cutting knife 9 It can be closed with the closing of the first pliers body and the second pliers body.

In some embodiments, as shown in FIG. 7, the first cleaning component 4 and the second cleaning component 3 are arranged on the opposite side of the

cutters

10 and 9. And behind the

cleaning components

4 and 3, an adjusting device 18 is provided between the first pliers body 21 and the second pliers body 22 to adjust the distance between the first pliers body 21 and the second pliers body 22 in the closed state. Specifically, the adjusting device 18 may be a bolt, one end of which is threadedly fitted with the first pliers body 21, and the other end is a free end. When the first pliers body and the second pliers body are in the closed state, the free end and the second pliers body are closed. The forceps body 22 is in contact. By adjusting the feeding depth of the bolt in the first pliers body 21, the distance between the first pliers body 21 and the second pliers body 22 in the closed state can be adjusted.

Another embodiment of the present invention is shown in Figures 8 and 9. In this embodiment, the jaws and the pliers handle are arranged similarly to the embodiment shown in Figure 4, and the bracket 27 is installed at the hinge shaft of the pliers handle. , Can rotate within a certain range around the axis (for example, 10°). The main difference between this embodiment and the embodiment shown in FIG. 1 lies in the structure of the bracket 27. As shown in FIG. 9, the through hole 271 on the bracket 27 penetrates along the length direction of the bracket (that is, the direction parallel to the clamp handle), and the optical fiber 28 can pass through the through hole 271, and through holes 272 are provided on both sides of the through hole 271, and the stripping knife can move in the through hole 272 to strip the sheathed optical fiber cable. In this embodiment, the through hole 271 is a rectangular hole, and the length of the rectangle in the axial direction of the hinge axis is about 3 mm, and the length in the other direction is about 2 mm. The arrangement of the through hole 271 can facilitate the setting of the stripping knife directly on the pliers handle.

Those skilled in the art can set through holes on the bracket according to their own needs, and design the movement direction of the stripping knife accordingly, and only need that the stripping knives on both sides can enter the through holes to cut the sheathed optical cable. In the middle, the through hole needs to support the sheathed optical cable to avoid the stress at the cutting position causing serious bending of the sheathed optical cable, resulting in difficulty in stripping or failure.

The technical solutions of the foregoing embodiments of the present invention are not intended to limit the present invention to these embodiments. Based on the described embodiments of the present invention, those skilled in the art can obtain other embodiments without making creative contributions, and these are all within the scope of legal protection obtained by the present invention.

Moreover, all the features, measures or treatments disclosed herein (unless the features and/or treatments are mutually exclusive) can be combined in any way and combined into any possible combination. Unless otherwise stated, the features disclosed in the specification, claims, abstract, and drawings can be replaced by other equivalent features or features with similar objectives, purposes, and/or functions.

Claims

A multi-purpose fiber stripper, including:

The first pliers body and the second pliers body, the first pliers body and the second pliers body are hinged to each other, one side of the first pliers body and the second pliers body at the hinge is the jaw, and the other side is the pliers A handle, wherein the jaws have blades that cooperate with each other for the coating layer of bare glass fiber;

It is characterized in that it also includes:

The bracket is arranged between the pliers handles of the first pliers body and the second pliers body. The bracket has a through hole for passing the sheathed optical cable, and the side wall of the through hole is used for aligning Pass through the leather cable to form a support;

The first stripping knife and the second stripping knife are located on both sides of the through hole, and can move into the through hole with the movement of the pliers handle, and as the two move into the through hole, the first stripping knife It cooperates with the second stripping knife to cut the metal wire and the skin in the sheathed optical cable.
The multi-purpose fiber stripper according to claim 1, wherein the first pliers body and the second pliers body are hinged together by a hinge shaft, and the bracket is hinged on the hinge shaft and can be connected to the first pliers. Swing between the pliers body and the pliers handle of the second pliers body.
The multi-purpose fiber stripper according to claim 2, wherein an elastic element is respectively installed between the bracket and the grips of the first and second pliers body.
The multi-purpose fiber stripper according to claim 1, characterized in that: the first stripping knife is provided with a first opening slot, the second stripping knife is provided with a second opening slot, the first opening slot and the second opening slot The two open slots are relatively used for accommodating optical fibers.
The multi-purpose fiber stripper according to claim 3, wherein the elastic coefficient of the elastic element ranges from 300 N/m to 10000 N/m.
The multi-purpose fiber stripper according to claim 5, wherein the elastic element is symmetrically arranged with respect to the bracket.
The multi-purpose fiber stripper according to claim 5, wherein the first stripper is installed on the first pliers body, and the second stripper is installed on the second pliers body.
The multi-purpose fiber stripper according to claim 5, wherein the first stripper knife and the second stripper knife are installed in the bracket, and the closing movement of the first pliers body and the second pliers body can push the first stripper. The knife and the second peeling knife move towards each other.
The multi-purpose fiber stripper according to claim 3, characterized in that: the jaws are provided with N blades, N is an integer greater than 1, and different blades are used to process the coating of optical fibers of different diameters. Floor.
The multi-purpose fiber stripper according to claim 9, characterized in that: a first cleaning component is installed on the first pliers body, a second cleaning component is installed on the second pliers body, the first pliers body and the second The movement of the pliers body can drive the first cleaning component and the second cleaning component to contact or separate.
The multi-purpose fiber stripper according to claim 10, wherein the first cleaning component and the second cleaning component are cylindrical, and are respectively mounted on the first pliers body and the second pliers body through a shaft.
The multi-purpose fiber stripper according to claim 3, wherein a cutter is further provided on the multi-purpose fiber stripper.
The multi-purpose fiber stripper according to claim 12, characterized in that: the first pliers body is provided with a first cutting knife, and the second pliers body is provided with a second cutting knife, the first cutting knife and the second cutting knife. The position of the cutter corresponds to and is arranged on one side of the jaws, and can be closed with the closing of the first pliers body and the second pliers body.
The multi-purpose fiber stripper according to claim 13, characterized in that: a first cleaning component is installed on the first pliers body, a second cleaning component is installed on the second pliers body, the first pliers body and the second The movement of the pliers body can drive the first cleaning component and the second cleaning component to contact or separate. The first cleaning component and the second cleaning component are arranged on the opposite side of the cutter, and the first pliers body and the second cleaning component on this side An adjusting device for adjusting the distance between the first pliers body and the second pliers body in the closed state is arranged between the pliers body.
The multi-purpose fiber stripper according to claim 14, wherein the adjusting device is a bolt, one end of which is screw-fitted with one of the first pliers body and the second pliers body, and the other end is a free end. When the first pliers body and the second pliers body are in the closed state, the free end is in contact with the other of the first pliers body and the second pliers body.
The multi-purpose fiber stripper according to claim 1, wherein the through hole on the bracket is perpendicular to the plane where the first pliers body and the second pliers body are located, and the through hole is a rectangular hole, A short side of the rectangular hole is located near the hinge joint.