WO2022011848A1

WO2022011848A1 - Optical fiber cleaving device

Info

Publication number: WO2022011848A1
Application number: PCT/CN2020/119500
Authority: WO
Inventors: 赵阳日
Original assignee: 一诺仪器（中国）有限公司
Priority date: 2020-07-17
Filing date: 2020-09-30
Publication date: 2022-01-20
Also published as: CN111856652A

Abstract

An optical fiber cleaving device, used for cleaving an optical fiber, and comprising a main body assembly (1) for accommodating and clamping the optical fiber. The upper side of the main body assembly (1) is connected to a cover assembly (2), the surface of the main body assembly (1) is covered with a panel assembly (3) to prevent internal assemblies from being exposed, and the bottom of the main body assembly (1) comprises a bottom plate (4). The optical fiber cleaving device comprises a cutter assembly (5), the cutter assembly (5) comprises a cutter rest body (51), the cutter rest body (51) comprises a blade (53) and a blade gear (531) which are coaxial, and the blade gear (531) is meshed with a one-way ratchet wheel (52). The cutter assembly (5) comprises a moving portion (54) and a limiting portion (55), the limiting portion (55) is used for limiting the cutter rest body (51), and the moving portion (54) is used for driving the cutter rest body (51) to move. The cover assembly (2) comprises a cover push rod (23), and the cover push rod (23) is used for limiting the cutter assembly (5). The panel assembly (3) comprises a third elastic body (39), and the two sides of the third elastic body (39) are respectively connected to the cutter rest body (51) and the panel assembly (3).

Description

An optical fiber cutting device

technical field

The invention relates to the field of optical fiber cutting equipment, in particular to an optical fiber cutting device.

Background technique

Optical fiber is a kind of fiber made of glass or plastic, which can be used as a light transmission tool. The structure of the existing optical fiber cutting knife is usually equipped with an optical fiber holding device and a knife assembly on the main body of the device, and the optical fiber is pressed by the optical fiber holding device. The knife assembly cuts the optical fiber to realize the cutting of the optical fiber.

However, most of the existing optical fiber cutting devices are manually operated, and the blades are of fixed structure. Most of the cutting edge positions are replaced by manual tools, that is, the optical fiber is cut by pressing the knife assembly by hand. In the actual use process, the operation will be affected. Personnel caused the same.

SUMMARY OF THE INVENTION

The problem to be solved by the present invention is how to make up for the above-mentioned defects of the prior art, and to provide an optical fiber cutting device that can automatically return the knife and automatically rotate the knife.

The technical problem of the invention can be solved by the following technical solutions:

An optical fiber cutting device is used for cutting optical fibers, comprising a main body assembly for accommodating and clamping optical fibers, the upper side of the main body assembly is connected to a cover body assembly, the surface of the main body assembly is covered by a panel assembly to prevent internal components from being exposed, and the bottom of the main body assembly includes a bottom plate .

The optical fiber cutting device includes a knife assembly, the knife assembly includes a knife holder main body, the knife holder main body includes a coaxial blade and a blade gear, the blade gear is engaged with the one-way ratchet, and the one-way ratchet Unidirectional rotation realizes the automatic rotation of the blade in one direction.

The knife assembly further includes a moving part and a limiting part, the limiting part is used to limit the main body of the tool holder, and the moving part is used to drive the main body of the tool holder to move.

The cover assembly includes a cover push rod, and the cover push rod is used to limit the tool holder assembly.

The panel assembly includes a third elastic body, and two sides of the third elastic body are respectively connected to the tool holder body and the panel assembly.

Further, the cover push rod and the inside of the cover assembly form an obtuse angle, the push rod is located on the lower side of the cover assembly and protrudes downward, and the cover push rod head includes a push rod rotating body , the push rod rotating body is a rotatable roller.

Further, the limit portion includes a limit shaft, the panel assembly includes a limit shaft accommodating groove, the limit shaft extends into the limit shaft accommodating groove, and connects the limit portion with the limit shaft. The panel assembly is connected; one side of the limiting portion includes a fourth elastic body, and two sides of the fourth elastic body are respectively connected with the limiting portion and the panel assembly.

The fourth elastic body makes the limiter rotate around the limiter shaft, and the fourth elastic body makes the side of the limiter that includes the fourth elastic body always exist in a direction. down force.

Further, the tool holder main body includes a tool holder guide seat in the middle, the blade, the one-way ratchet and the moving part are respectively located on both sides of the tool holder guide seat; between the moving part and the tool holder guide seat It includes a locking portion, and the upper portion of the locking portion includes the limiting portion.

Further, the position-limiting portion includes a position-limiting surface, the retaining portion includes a retaining-position surface, and under the action of the force of the fourth elastic body, the position-limiting surface is always in contact with the retaining surface, limiting the position the tool holder body.

Further, the limiting portion includes a pressing surface, the panel assembly includes a limiting pressing hole, the pressing surface is accommodated in the panel assembly, and the cover assembly includes a cover protruding from the lower edge of the cover assembly a pressing part; when the cover pressing part presses the pressing surface through the limit pressing hole, the fourth elastic body is compressed, the limit part rotates, and the limit surface leaves the card plane.

Further, a knife assembly hook is provided on the moving part, and the panel assembly includes a panel hook and a third elastic body; two sides of the third elastic body are respectively connected with the knife assembly hook and the panel hook, so The natural contraction of the third elastic body makes the tool holder main body always have the force of backward movement.

Further, the moving part includes a push surface in contact with the cover push rod, and when the cover push rod rotates with the cover body, the cover push rod pushes the push surface to move to move the third The elastic body is stretched and the tool holder body is movable.

Further, the cover assembly includes a cover closing gap, the panel assembly includes a switch gap, the panel assembly includes a closing switch, and the closing switch includes a closing switch push cover and a closing switch protrusion; the closing switch push cover Exposed on the outside of the panel assembly, the closed switch protrusion is located between the cover closing gap and the switch gap, and the closed switch protrusion protrudes toward the cover assembly direction, which closes the switch protrusion. The width is not greater than the width of the closing gap; when the closing switch protrusion is located in the closing space, the opening and closing of the cover assembly is not affected; when the closing switch protrusion leaves the cover closing space , the closure of the cover assembly.

Further, the panel assembly includes a counter that can record the number of cuttings; the moving part includes a counting key, and the bottom includes a sensing device, the counting key and the sensing device can record the number of cuttings and reflect the data to the counter.

Compared with the prior art, the beneficial effects achieved by this patent are:

The optical fiber cutting device of the present invention can realize the automatic return of the knife holder and the blade through the cooperation of multiple mechanisms, and the automatic rotation of the blade at the same time. The utility model has the advantages of convenient operation, low cost, simple and convenient structure, and easy mass production.

Description of drawings

Fig. 1 is the exploded schematic diagram of the overall structure of the optical fiber cleaver according to the present invention;

2 is a schematic diagram of the main assembly of the optical fiber cleaver according to the present invention;

3 is a schematic diagram of the cover assembly of the optical fiber cleaver according to the present invention;

4 is a schematic top view of the panel assembly of the optical fiber cleaver according to the present invention;

FIG. 5 is a schematic elevation view of the panel assembly of the optical fiber cleaver according to the present invention;

FIG. 6 is a schematic diagram of a part of the knife assembly of the optical fiber cleaving knife according to the present invention;

FIG. 7 is another perspective view of the part of the knife assembly of the optical fiber cleaving knife according to the present invention;

FIG. 8 is a schematic diagram of the pressing limit assembly of the optical fiber cleaver according to the present invention;

Fig. 9 is the overall appearance schematic diagram of the optical fiber cleaver according to the present invention;

10 is a schematic cross-sectional view of the initial state of the optical fiber cleaver according to the present invention;

11 is another schematic cross-sectional view of the initial state of the optical fiber cleaver according to the present invention;

12 is a schematic cross-sectional view of the fiber cleaving knife according to the present invention in the blade direction in the returning state;

FIG. 13 is a schematic cross-sectional view of the fiber cleaver according to the present invention in the direction of the elastic body in the returning state;

14 is a schematic diagram of the knife assembly of the fiber cleaving knife according to the present invention returning to the knife;

Fig. 15 is another perspective view of the knife assembly of the optical fiber cleaving knife according to the present invention, which is in a state where the knife assembly is limited and returned to the knife;

16 is a schematic diagram of the initial state of the knife assembly of the optical fiber cleaver according to the present invention;

17 is a schematic diagram of the fiber cleaving knife of the present invention in use;

FIG. 18 is a schematic diagram of the optical fiber cleaver according to the present invention when it is closed.

Labels in the figure

Main assembly 1, upper holding assembly 11, upper pressing pad 111, lower holding assembly 12, lower pressing pad 121, cutting gap 122, first elastic body 13, connecting shaft 14, clamp 15, counter 17, cover assembly 2, first Two elastic bodies 21 , cover shaft hole 22 , cover push rod 23 , push rod rotating body 231 , cover closing gap 24 , cover pressing part 25 , panel assembly 3 , panel shaft hole 31 , knife assembly accommodating place 32 , knife assembly guide 321, clamp housing 33, switch gap 34, limit pressing hole 35, fourth elastic body accommodating hole 351, limit shaft accommodating slot 352, counter accommodating slot 36, panel hook 37, Close switch 38, close switch protrusion 381, close switch push cover 382, close switch clip 383, third elastic body 39, bottom plate 4, knife assembly 5, knife rest body 51, knife rest guide shaft 511, one-way ratchet 52 , blade 53, blade gear 531, moving part 54, push surface 541, inclined surface 542, top surface 543, knife assembly hook 544, count key 545, limit part 55, limit shaft 551, limit surface 552, pressing surface 553 , the fourth elastic body 554 , the smooth surface 555 , the clamping part 56 , the clamping surface 561 , the clamping inclined surface 562 , and the clamping plane 563 .

detailed description

Hereinafter, the present invention will be further described based on preferred embodiments with reference to the accompanying drawings.

In addition, for the convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this approach is not intended to limit the protection scope of the present invention.

Words in the singular also include the plural and vice versa.

In the description of the embodiments of the present invention, it should be noted that, if the terms “upper”, “lower”, “inner”, “outer”, etc. appear, the orientation or position relationship is based on the orientation or position shown in the drawings The relationship, or the orientation or position relationship that the product of the invention is usually placed in use, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. In addition, in the description of the present invention, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be construed as indicating or implying relative importance. The detailed description of the invention and the claims may have different names.

The vocabulary in this specification is used to describe embodiments of the invention, but not intended to limit the invention. It should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. Ground connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or an internal communication between two elements. For those skilled in the art, the above-mentioned specific meanings in the present invention can be specifically understood.

Please refer to FIG. 1 and FIG. 9 , the optical fiber cutting device of the present invention is used for cutting optical fibers, and includes a main body assembly 1 for accommodating and clamping the optical fiber. The panel assembly 3 is covered to prevent internal components from being exposed, and the bottom of the main body assembly 1 includes a bottom plate 4 .

Please refer to FIG. 1 , FIG. 6 and FIG. 9 , the optical fiber cutting device includes a knife assembly 5 , and the knife assembly includes a knife holder main body 51 , and the knife holder main body 51 includes a coaxial blade 53 and a blade gear 531 . The blade gear 531 meshes with the one-way ratchet 52 .

The one-way ratchet 52 is fixedly connected to the panel assembly 3. Specifically, the one-way ratchet 52 is internally connected to the panel assembly 3 through a shaft. After the connection, the one-way ratchet 52 rotates around the shaft.

The one-way ratchet wheel 52 can only rotate in one direction, and when reversely rotated, the one-way ratchet wheel 52 is stationary and does not rotate.

The blade gear 531 meshes with the one-way ratchet 52. When the knife assembly drives the blade gear 531 to reciprocate, the one-way ratchet 52 rotates with the blade gear 531 in one direction, but the knife When the assembly drives the blade gear 531 to move in the reverse direction, the one-way ratchet 52 does not rotate, and the blade gear 531 rotates under the limiting action of the one-way ratchet 52 to drive the blade 53 to rotate.

The above-mentioned movement is constantly reciprocating, so that the blade 53 continuously rotates in one direction, which is beneficial to protect the blade. Different positions of the blade are used for each cutting to prevent local wear of the blade caused by continuous cutting at the same place.

Please refer to FIG. 1 , FIGS. 6 to 9 , the knife assembly further includes a moving part 54 and a limiting part 55 , the limiting part 55 is used to limit the knife holder main body 51 , and the moving part 54 is used to drive The tool holder body 51 moves.

Please refer to FIG. 1 and FIG. 2 , the main body assembly 1 includes an upper holding element 11 and a lower holding element 12 for clamping the optical fiber during cutting, and the upper holding element 11 and the lower holding element 12 respectively include upper pressure pads 111 and lower pressure pads 112, and the number of the upper pressure pads 111 and the lower pressure pads 121 is 2, the lower holding assembly 12 also includes a cutting gap 122, the cutting gap 122 can accommodate a blade 53. The blade 53 can extend out of the cutting gap 122 to be located in the middle of the two lower pressure pads 121. When cutting, the upper pressure pad 111 and the lower pressure pad 121 on the same side are fitted together, and the upper pressure pad 111 and the lower pressure pad 121 on the same side are attached to each other. Press the optical fiber on the side, and the blade 53 cuts through the cutting gap 122 to cut the optical fiber. During cutting, the rubber pad (not shown in the figure) in the middle of the upper pressing pad 111 will knock the optical fiber.

Referring to FIGS. 1 to 4 , the main assembly 1 includes a connecting shaft 14 , the cover assembly 2 includes a cover shaft hole 22 , and the panel assembly 3 includes a panel shaft hole 31 , through which the connecting shafts 14 respectively pass The cover shaft hole 22 and the panel shaft hole 31 connect the cover assembly 2 and the panel assembly 3, and both the cover assembly 2 and the upper handle assembly 12 can use the connecting shaft 14 as the shaft. rotate.

Please refer to FIGS. 1 to 3 and 9 , the main body assembly 1 includes a first elastic body 13 , the first elastic body 13 is a back-shaped elastic body, the rotation axis thereof is a connecting shaft 14 , and the first elastic body 13 is The body 13 always has a force to keep the cover assembly 2 and the upper holding assembly 11 away from the panel assembly 3. In the absence of other forces, the cover assembly 2 and the upper holding assembly 11 are in the first position. The elastic body 13 is always in a position away from the panel assembly 3 under the action of the elastic body 13 .

Referring to FIGS. 1-2 , the main body assembly 1 includes a clamp 15 for holding the optical fiber and a counter 17 for recording the number of cuts.

Please refer to 1 and FIG. 3 , the cover assembly 2 includes a second elastic body 21 , after the cover assembly 2 is connected with the main body 1 , the second elastic body 21 is located on the back of the upper handle assembly 11 , so that the upper holding assembly 11 can be elastically moved.

Please refer to FIG. 1 and FIG. 3 , the cover assembly 2 includes a cover push rod 23 , the push rod 23 forms an obtuse angle with the inner side of the cover assembly 2 , and the push rod 23 is located in the cover shaft hole 22 The head of the cover push rod 23 includes a push rod rotating body 231, and the push rod rotating body 231 is a rotatable roller.

Please refer to FIGS. 1 , 3 to 5 , 17 and 18 , the cover assembly 2 includes a cover closing gap 24 , the panel assembly 3 includes a switch gap 34 and a closing switch 38 , and the closing switch 38 passes through Through the switch gap 34 , it can extend into the cover closing gap 24 . The cover closing gap 24 is in the shape of a long strip, and its function is to accommodate the closing switch 38 .

Please refer to FIG. 1 and FIG. 3 , the cover assembly 2 includes a pressing portion 25 , the pressing portion 25 protrudes from the lower surface of the cover assembly 2 , and the pressing portion 25 is used for pressing the limiting portion 55 .

Referring to FIGS. 1 , 4 and 5 , the panel assembly 3 includes a knife assembly accommodating portion 32 for accommodating the knife assembly 5 . It also includes a clamp accommodating place 33 for accommodating the clamp 15 , a limit pressing hole 35 for accommodating the limiting portion 55 , and a counter accommodating slot 36 for accommodating the counter 17 .

Please refer to FIGS. 1 , 4 to 6 , the knife assembly accommodating part 32 includes a knife assembly guide portion 321 that guides the knife assembly 5 , the knife assembly 5 includes a knife rest guide shaft 511 , and the knife rest The guide shaft 511 is inserted into the knife assembly guide portion 321 , so that the knife assembly 5 moves axially under the guidance of the knife assembly guide portion 321 .

Please refer to FIGS. 1 , 4 to 6 and 10 , the panel assembly 3 includes a third elastic body 39 , and two sides of the third elastic body 39 are respectively hung on the panel hooks 37 of the panel assembly 3 and the knife In the knife assembly hook 544 of the assembly 5 , the third elastic body 39 naturally contracts in a natural state, so that the knife assembly 5 always has a force close to the panel hook 37 .

Please refer to FIG. 1 , FIG. 4 to FIG. 6 , the panel assembly includes a closing switch 38 , and the part of the closing switch 38 exposed outside the panel assembly 3 is a closing switch push cover 382 , and the closing switch push cover 382 drives the The closing switch 38 moves between the cover closing gap 24 and the switch gap 34 . The part of the closing switch located between the closing gap 24 of the cover body and the opening and closing gap 34 includes a closing switch protrusion 381, the closing switch protrusion 381 protrudes toward the cover assembly 2, and the closing switch protrusion 381 closes the switch. The width of the protrusion 381 is not greater than the width of the closed gap 24. When the closed switch protrusion 381 is located in the closed gap 24, the opening and closing of the cover assembly 2 is not affected; when the cover assembly 2. When closing and connecting with the panel assembly 3 to clamp the optical fiber, the closing switch protrusion 381 can slide away from the cover closing space 24. At this time, the closing switch protrusion 381 is snapped into the cover On the rear side of the assembly 2, the closing switch protrusion 381 closes the cover assembly 2 to a limit, the cover assembly 2 cannot be opened, and the cover assembly 2 is closed.

The closing switch 38 further includes a closing switch clamping position 383, and the panel assembly 3 is provided with a column. When the closing switch 38 closes the cover assembly 2, the closing switch clamping position 383 slides and snaps into place. The column on the panel assembly 3 prevents the closing switch 38 from sliding freely.

1 , 6 to 8 , and 14 to 16 , the knife assembly 5 includes a knife rest body 51 , and the center of the knife rest body 51 includes a knife rest guide seat 511 . One side includes a blade 53 and a one-way ratchet 52, and the other side includes a moving part 54. Between the moving part 43 and the tool holder guide seat 511, a clamping part 56 is included, and the upper part of the clamping part 56 includes the Limiting part 55 .

Please continue to refer to FIGS. 1 , 6 to 8 , and 14 to 16 , the limiting portion 55 includes a limiting shaft 551 , the panel assembly 31 includes a limiting shaft accommodating groove 352 , and the limiting shaft 551 Extend into the limiting shaft accommodating groove 352 to connect the limiting portion 55 with the panel assembly 3 .

One side of the limiting portion 55 includes a fourth elastic body 554 , one side of the fourth elastic body 554 is connected to the limiting portion 55 , and the other side accommodates the fourth elastic body accommodating hole of the panel assembly 3 351, the fourth elastic body 554 can make the limiting portion 55 rotate with the limiting shaft 551 as the axis, and under no external force, the fourth elastic body 554 makes the fourth elastic body 554 rotate. One side of the elastic body 554 is always inclined downward.

The limiting portion 55 includes a limiting surface 552, and the locking portion 56 includes a locking surface 561. In the natural state of the fourth elastic body 554, the limiting surface 552 is always in contact with the locking surface. 561 contacts to limit the tool holder main body 51 .

The limiting portion 55 includes a pressing surface 553 , and the pressing surface 553 is accommodated in the limiting pressing hole 35 . When the cover pressing portion 25 passes through the limiting pressing hole 35 and presses the pressing surface 553 , the fourth elastic body is compressed, the limiting portion 55 rotates, and the limiting surface 553 leaves the locking surface 561 .

The bottom of the limiting portion 55 includes a smooth smooth surface 555 .

The locking portion 56 includes a locking inclined surface 562 and a locking plane 563 . When the limiting portion 55 is pressed by the cover pressing portion 25 , the tool holder body 51 is not limited by the limiting portion 55 . At this time, if the tool holder body 51 moves backward and the external force pressing the limiting surface 552 disappears, the limiting portion 55 will recover under the action of the fourth elastic body 554 , and the smooth surface 555 In contact with the latching slope 562, when the tool holder main body 51 moves forward, the latching slope 562 and the smooth surface 555 will not be limited until the tool holder body 51 moves forward until the smooth surface 55 is not in contact with the latching position. The plane 563 contacts, the limiting surface 552 contacts the limiting surface 552 again, and the tool holder body 51 is limited to move backward.

The knife holder main body 51 includes a moving part 54 on which a knife assembly hook 544 is arranged. The natural contraction of the third elastic body 39 makes the knife holder main body 51 always have a force to move backwards.

The moving part 54 includes a push surface 541 in contact with the cover push rod 23. When the cover push rod 23 rotates with the cover body, the cover push rod 23 pushes the push surface 541 to move to move the cover push rod 23. The third elastic body 39 is stretched.

The moving part 54 further includes an inclined surface 542 and a top surface 543, the top surface 543 is in contact with the lower surface of the panel assembly 3, so that the tool holder assembly 51 is parallel to the panel assembly 3, keeping the horizontal direction unchanged.

The moving part 54 also includes a counting key 545, and the bottom includes a sensing device. When the cover assembly 2 is opened, the counting key 545 is in contact with the bottom sensing device, and the counter 17 displays one count. When the tool holder body 51 moves When the count key 545 is far away from the sensing device, the count will no longer be counted. When the count key 545 touches the sensing device again, the count will be counted again.

Please refer to FIGS. 1 to 18. The optical fiber cutting device described in this application includes an initial state and a knife-returning state. In the initial state, the cover assembly 2 and the panel assembly 3 are closed. In the knife-returning state, the The cover assembly 2 is separated from the panel assembly 3, and the working flow and working principle of the present application will be described below with reference to the accompanying drawings.

Before use, the optical fiber cutting device is closed. At this time, the closing switch protrusion 381 of the closing switch 38 is located at the rear edge of the cover assembly 2, and the cover assembly 2 cannot be opened. At this time, the cover pressing portion 25 presses the pressing surface 553 , the limiting portion 55 acts infinitely on the knife holder main body 51 , the third elastic body 39 contracts, and the knife assembly 5 approaches the closing light 38 direction.

The sliding closing switch pushes the cover 382 to drive the closing switch protrusion 381 to slide into the closing space 24 of the cover body, and the cover body assembly 2 can be opened and closed at this time.

When the limiting effect of the closing switch 38 disappears, the first elastic body 13 drives the cover assembly 2 and the upper holding assembly 11 fixedly connected with the cover assembly away from the panel assembly 3, and the fiber cutting device is opened.

At this time, the cover assembly 2 rotates around the connecting shaft 14 under the action of the first elastic body 13 , and the cover push rod 23 also rotates accordingly, and starts to rotate in the direction of the tool holder body 51 .

At this time, the pressing of the cover pressing portion 25 on the pressing surface 553 disappears, the limiting portion 55 rotates around the limiting shaft 551 under the action of the fourth elastic body 554 , and the smooth surface 555 contacts the The clamping slope 562 and the clamping plane 563 .

At this time, since the elastic force of the first elastic body 13 is smaller than that of the third elastic body 39 , the cover assembly 2 will stop when it is opened to about a half position.

Manually open the cover assembly 2 to the end, and rotate the cover assembly 2 to fully open.

At this time, the push rod rotating body 231 of the cover push rod 23 contacts the push surface 541 of the tool holder body 51 and drives the tool holder body 51 to move axially away from the connecting shaft 14 .

As the cover assembly 2 is manually opened, the third elastic body 39 is stretched open. When the cover assembly 2 is fully opened, the limiting surface 552 of the limiting portion 55 and the engaging surface of the tool holder body The 561 contacts and limits the position, and the limiting portion 55 limits the tool holder main body 51 so as not to be retracted and pulled back by the third elastic body 39 .

During this process, the main body 1 of the tool holder moves, which drives the blade 53 to move with it. The one-way ratchet 52 meshes with the blade gear 531. The one-way ratchet 52 cannot move in this direction, so the rotation of the blade gear 531 drives the blade 53 to rotate. , to realize the automatic rotation of the blade 53 .

The cover assembly 2 is completely opened, and the optical fiber is placed on the clamp 15 and the pressing pad 121, and the optical fiber placement is completed.

Close the lid assembly 2 manually.

During the process of closing the cover assembly 2, the cover assembly 2 rotates, which drives the cover push rod 23 away from the push surface 541, the limiting effect of the cover push rod 23 disappears, and the limiting portion 55 limits the tool holder assembly 51 , the tool holder assembly 51 is kept away from the connecting shaft 14 .

When the cover assembly 2 is manually closed and the upper pressure pad 111 and the lower pressure pad 121 are basically in contact, the optical fiber is pressed between the upper pressure pad and the lower pressure pad. At this time, the tension of the first elastic body 13 makes the upper hold There is a slight gap between the assembly 11 and the cover assembly 2 .

Continue to press the cover assembly 2 to compress the first elastic body 13; the upper pressure pad 111 and the lower pressure pad 121 are pressed tightly, and the optical fiber is completely pressed.

At this time, the cover assembly 2 and the panel assembly 3 are closed, the cover pressing portion 25 presses the pressing surface 553, the fourth elastic body 554 is compressed, the limiting portion 55 rotates, and the limiting surface 552 is opposite to the pressing surface 553. The limiting function of the clamping surface 561 disappears, and the main body 51 of the tool holder moves in the direction of the connecting shaft 14 under the action of the third elastic body 39 , which drives the blade 53 to move, and the blade cuts between the upper pressure pad 111 and the lower pressure pad 121 , cut the fiber.

If it is necessary to cut the optical fiber again, repeat the above actions, and then open the cover assembly 2 again.

The specific embodiments of the present invention have been described in detail above. For those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also belong to the present invention. the scope of protection of the claims.

Claims

An optical fiber cutting device is used for cutting optical fibers, comprising a main body assembly for accommodating and clamping optical fibers, the upper side of the main body assembly is connected to a cover body assembly, the surface of the main body assembly is covered by a panel assembly to prevent internal components from being exposed, and the bottom of the main body assembly includes a bottom plate , which is characterized by:

The optical fiber cutting device includes a knife assembly, the knife assembly includes a knife holder body, the knife holder main body includes a coaxial blade and a blade gear, and also includes a one-way ratchet fixedly connected with the panel assembly, the blade The gear meshes with the one-way ratchet, and the one-way ratchet rotates in one direction to realize the automatic rotation of the blade in one direction;

The knife assembly further includes a moving part and a limiting part, the limiting part is used to limit the main body of the tool holder, and the moving part is used to drive the main body of the tool holder to move;

The cover body assembly includes a cover body push rod, and the cover body push rod is used to limit the tool holder main body;

The panel assembly includes a third elastic body, and two sides of the third elastic body are respectively connected to the tool holder body and the panel assembly.
A kind of optical fiber cutting device according to claim 1, is characterized in that:

The cover push rod forms an obtuse angle with the inside of the cover assembly, the cover push rod is located on the lower side of the cover assembly and protrudes downward, and the cover push rod head includes a push rod rotating body , the push rod rotating body is a rotatable roller.
A kind of optical fiber cutting device according to claim 1, is characterized in that:

The limiting portion includes a limiting shaft, the panel assembly includes a limiting shaft accommodating groove, and the limiting shaft extends into the limiting shaft accommodating groove to connect the limiting portion with the panel assembly connect;

One side of the limiting portion includes a fourth elastic body, and two sides of the fourth elastic body are respectively connected with the limiting portion and the panel assembly;

The fourth elastic body makes the limiter rotate around the limiter shaft, and the fourth elastic body makes the side of the limiter that includes the fourth elastic body always exist in a direction. down force.
A kind of optical fiber cutting device according to claim 3, is characterized in that:

The tool holder main body includes a tool holder guide seat in the middle, and the blade, the one-way ratchet and the moving part are respectively located on both sides of the tool holder guide seat;

A catch portion is included between the moving portion and the tool holder guide seat, and the limit portion is included above the catch portion.
A kind of optical fiber cutting device according to claim 4, is characterized in that:

The limiting portion includes a limiting surface, and the locking portion includes a locking surface;

Under the action of the force of the fourth elastic body, the limiting surface is always in contact with the locking surface to limit the main body of the tool holder.
A kind of optical fiber cutting device according to claim 5, is characterized in that:

The limiting portion includes a pressing surface,

The panel assembly includes a limit pressing hole, and the pressing surface is accommodated in the panel assembly,

The cover body assembly includes a cover body pressing portion protruding from the lower edge of the cover body assembly;

When the cover pressing portion presses the pressing surface through the limiting pressing hole, the fourth elastic body is compressed, the limiting portion rotates, and the limiting surface leaves the locking surface .
A kind of optical fiber cutting device according to claim 1, is characterized in that:

The moving part is provided with a knife assembly hook,

the panel assembly includes a panel hook and a third elastic body;

Two sides of the third elastic body are respectively connected with the knife assembly hook and the panel hook, and the natural contraction of the third elastic body makes the knife holder main body always have a force to move backwards.
A kind of optical fiber cutting device according to claim 7, is characterized in that:

The moving part includes a push surface in contact with the cover push rod. When the cover push rod rotates with the cover body, the cover push rod pushes the push surface to move, and pushes the third elastic body When stretched, the main body of the tool holder can move.
A kind of optical fiber cutting device according to claim 1, is characterized in that:

The cover assembly includes a cover closing gap, the panel assembly includes a switch gap, the panel assembly includes a closing switch, and the closing switch includes a closing switch push cover and a closing switch protrusion;

The closing switch push cover is exposed outside the panel assembly, the closing switch protrusion is located between the cover closing gap and the switch gap, and the closing switch protrusion protrudes toward the cover assembly direction, The width of the closed switch protrusion is not greater than the width of the closed gap;

When the closing switch protrusion is located in the closing space, the opening and closing of the cover assembly is not affected; when the closing switch protrusion leaves the closing space of the cover, the cover assembly is closed.
A kind of optical fiber cutting device according to claim 1, is characterized in that:

the panel assembly includes a counter capable of recording the number of cuts;

The moving part includes a counting key, and the bottom includes a sensing device, and the counting key and the sensing device are used to record the number of cuts and reflect the data to the counter.