Optical fiber cutting device

Abstract

A fiber optic cutting device for cutting optical fibers, comprising a main body component for accommodating and clamping the optical fibers, the upper side of the main body component being connected to a cover body component, the surface of the main body component being covered by a panel component to prevent the internal components from being exposed, and the bottom of the main body component comprising a base plate. The fiber optic cutting device comprises a knife assembly, the knife assembly comprising a knife holder body, the knife holder body comprising a coaxial blade and a blade gear, the blade gear being meshed with the one-way ratchet. The knife assembly further comprises a moving part and a limiting part, the limiting part being used to limit the knife holder body, and the moving part being used to drive the knife holder body to move. The cover body component comprises a cover body push rod, the cover push rod being used to limit the knife holder assembly. The panel assembly comprises a third elastic body, and the two sides of the third elastic body are respectively connected to the knife holder body and the panel assembly.

Description

Technical Field

[0001] The invention relates to the field of optical fiber cutting equipment, in particular to an optical fiber cutting device. Background Art

[0002] Optical fiber is a fiber made of glass or plastic that can be used as a light transmission tool. The structure of an existing optical fiber cutting knife usually has an optical fiber holding device and a knife assembly on the device body. The optical fiber is pressed by the optical fiber holding device, and the knife assembly cuts the optical fiber to achieve cutting of the optical fiber.

[0003] However, the existing optical fiber cutting devices are mostly manually operated, and the blade is a fixed structure. Most of them use manual tools to change the blade position, that is, the optical fiber is cut by pressing the knife assembly by hand, which will cause inconvenience to the operator during actual use. Summary of the invention

[0004] The problem to be solved by the present invention is how to make up for the defects of the above-mentioned prior art and provide an optical fiber cutting device which can automatically return the knife and automatically rotate the knife.

[0005] The technical problem of the invention can be solved by the following technical solutions:

[0006] A fiber optic cutting device is used for cutting optical fibers, comprising a main body component for accommodating and clamping the optical fiber, the upper side of the main body component is connected to a cover body component, the surface of the main body component is covered by a panel component to prevent the internal components from being exposed, and the bottom of the main body component comprises a base plate.

[0007] The optical fiber cutting device includes a knife assembly, which includes a knife holder body. The knife holder body includes a coaxial blade and a blade gear. The blade gear is meshed with the one-way ratchet, and the one-way ratchet rotates unidirectionally to achieve automatic unidirectional rotation of the blade.

[0008] The knife assembly further comprises a moving part and a limiting part, wherein the limiting part is used for limiting the knife holder body, and the moving part is used for driving the knife holder body to move.

[0009] The cover assembly includes a cover push rod, and the cover push rod is used to limit the tool holder assembly.

[0010] 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.

[0011] Furthermore, the cover push rod forms an obtuse angle with the inner side of the cover assembly, the push rod is located at the lower side of the cover assembly and extends downward, and the cover push rod head includes a push rod rotating body, and the push rod rotating body is a rotatable roller.

[0012] Furthermore, the limiting part includes a limiting shaft, the panel assembly includes a limiting shaft accommodating groove, the limiting shaft extends into the limiting shaft accommodating groove, and connects the limiting part with the panel assembly; one side of the limiting part includes a fourth elastomer, and both sides of the fourth elastomer are respectively connected to the limiting part and the panel assembly.

[0013] The fourth elastic body enables the limiting portion to rotate about the limiting axis, and the fourth elastic body enables a downward force to always exist on the side of the limiting portion including the fourth elastic body.

[0014] Furthermore, the tool holder body includes a tool holder guide shaft in the middle, and the blade and the one-way ratchet are respectively located on both sides of the tool holder guide shaft with the moving part; a locking part is included between the moving part and the tool holder guide shaft, and the limiting part is included above the locking part.

[0015] Furthermore, 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 tool holder body.

[0016] Furthermore, 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 body assembly includes a cover body pressing portion protruding from the lower edge of the cover body assembly; when the cover body pressing portion passes through the limiting pressing hole to press the pressing surface, the fourth elastomer is compressed, the limiting portion rotates, and the limiting surface leaves the locking surface.

[0017] Furthermore, a knife assembly hook is provided on the moving part, and the panel assembly includes a panel hook and a third elastomer; the two sides of the third elastomer are respectively connected to the knife assembly hook and the panel hook, and the natural contraction of the third elastomer makes the knife holder body always have a force to move backward.

[0018] Furthermore, 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, stretching the third elastic body, so that the tool holder body can move.

[0019] Furthermore, 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 on the outside of 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, and the width of the closing switch protrusion is not greater than the width of the closing gap; when the closing switch protrusion is located in the closing gap, the opening and closing of the cover assembly is not affected; when the closing switch protrusion leaves the cover closing gap, the cover assembly is closed.

[0020] Furthermore, the panel assembly includes a counter that can record the number of cutting times; the moving part includes a counting key, and the bottom includes a sensing device, and the counting key and the sensing device can record the number of cutting times and reflect the data to the counter.

[0021] Compared with the prior art, the beneficial effects achieved by this patent are:

[0022] 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 blade automatically rotates at the same time. It is easy to operate, low in cost, simple and convenient in structure, and easy to mass produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded schematic diagram of the overall structure of the optical fiber cutting knife of the present invention;

[0024] Figure 2 This is a schematic diagram of the main components of the optical fiber cutting knife of the present invention;

[0025] Figure 3 This is a schematic diagram of the cover assembly of the optical fiber cutting knife of the present invention;

[0026] Figure 4 It is a top view schematic diagram of the panel assembly of the optical fiber cutting knife of the present invention;

[0027] Figure 5 This is a schematic diagram of the panel assembly of the optical fiber cutting knife of the present invention from above;

[0028] Figure 6 It is a schematic diagram of a part of the knife assembly of the optical fiber cutting knife of the present invention;

[0029] Figure 7 It is a schematic diagram of a portion of the knife assembly of the optical fiber cutting knife of the present invention from another angle;

[0030] Figure 8 This is a schematic diagram of the pressing and limiting assembly of the optical fiber cutting knife of the present invention;

[0031] Fig. 9 This is a schematic diagram of the overall appearance of the optical fiber cutting knife of the present invention;

[0032] Fig.10 is a schematic cross-sectional view of the initial state of the optical fiber cutting knife of the present invention;

[0033] Fig.11 Another cross-sectional schematic diagram of the initial state of the optical fiber cutting knife of the present invention;

[0034] Fig.12 It is a schematic cross-sectional view of the fiber optic cutting knife of the present invention in the blade direction in the return state;

[0035] Fig.13 It is a schematic cross-sectional view of the elastic body of the optical fiber cutting knife of the present invention in the return state;

[0036] Fig.14 This is a schematic diagram of the knife assembly of the optical fiber cutting knife of the present invention in the knife-returning state;

[0037] Fig.15 It is a schematic diagram of another angle of the knife assembly of the optical fiber cutting knife of the present invention in the limited knife return state;

[0038] Fig.16 This is a schematic diagram of the initial state of the knife assembly of the optical fiber cutting knife of the present invention;

[0039] Fig.17 This is a schematic diagram of the use of the optical fiber cutting knife of the present invention;

[0040] Fig.18 This is a schematic diagram of the optical fiber cutting knife of the present invention when it is closed.

[0041] Numbers in the figure

[0042] Main body component 1, upper holding component 11, upper pressure pad 111, lower holding component 12, lower pressure pad 121, cutting gap 122, first elastic body 13, connecting shaft 14, clamp 15, counter 17, cover body component 2, second elastic body 21, cover body shaft hole 22, cover body push rod 23, push rod rotating body 231, cover body closing gap 24, cover body pressing part 25, panel component 3, panel shaft hole 31, knife assembly accommodating place 32, knife assembly guide part 321, clamp accommodating place 33, switch gap 34, limit pressing hole 35, fourth elastic body accommodating hole 351, limit shaft accommodating groove 352, counter accommodating groove 36, Panel hook 37, closing switch 38, closing switch protrusion 381, closing switch push cover 382, ​​closing switch latch 383, third elastic body 39, bottom plate 4, knife assembly 5, knife holder body 51, knife holder 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, counting key 545, limiting part 55, limiting shaft 551, limiting surface 552, pressing surface 553, fourth elastic body 554, smooth surface 555, latch part 56, latch surface 561, latch inclined surface 562, latch plane 563. DETAILED DESCRIPTION

[0043] Hereinafter, the present invention will be further described based on preferred embodiments with reference to the accompanying drawings.

[0044] In addition, various components on the drawings are enlarged (thickened) or reduced (thinned) for ease of understanding, but this practice is not intended to limit the protection scope of the present invention.

[0045] Words importing the singular also include the plural and vice versa.

[0046] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, in order to distinguish different units, the words "first", "second", etc. are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance, and their names may be different in the detailed description of the invention and the claims.

[0047] The words in this specification are used to illustrate the embodiments of the present invention, but are not intended to limit the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the above-mentioned specific meanings in the present invention can be specifically understood.

[0048] Please refer to Figure 1 and Fig. 9 The optical fiber cutting device described in the present invention is used for cutting optical fibers, and includes a main body component 1 for accommodating and clamping the optical fiber. The upper side of the main body component 1 is connected to a cover body component 2. The surface of the main body component 1 is covered by a panel component 3 to prevent the internal components from being exposed. The bottom of the main body component 1 includes a base plate 4.

[0049] Please refer to Figure 1 , Figure 6 and Fig. 9 The optical fiber cutting device includes a knife assembly 5, and the knife assembly includes a knife holder body 51. The knife holder body 51 includes a coaxial blade 53 and a blade gear 531, and the blade gear 531 is meshed with the one-way ratchet 52.

[0050] The one-way ratchet 52 is fixedly connected to the panel assembly 3. Specifically, the one-way ratchet 52 is connected to the panel assembly 3 via an axis. After the connection, the one-way ratchet 52 rotates around the axis.

[0051] The one-way ratchet 52 can only rotate in one direction. When rotating in the reverse direction, the one-way ratchet 52 stops and does not rotate.

[0052] The blade gear 531 is meshed 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. However, when the knife assembly drives the blade gear 531 to move in the opposite direction, the one-way ratchet 52 remains stationary and does not rotate. The blade gear 531 rotates under the limiting action of the one-way ratchet 52, driving the blade 53 to rotate.

[0053] The above-mentioned movement is continuously reciprocating, so that the blade 53 continuously rotates in one direction, which is beneficial to protecting the blade. Each cutting uses a different position of the blade to prevent local wear of the blade caused by continuous cutting at the same position.

[0054] Please refer to Figure 1 , Figure 6~Figure 9The knife assembly further includes a moving portion 54 and a limiting portion 55 , wherein the limiting portion 55 is used to limit the knife holder body 51 , and the moving portion 54 is used to drive the knife holder body 51 to move.

[0055] Please refer to Figure 1 and Figure 2 The main body component 1 includes an upper holding component 11 and a lower holding component 12 for clamping the optical fiber during cutting. The upper holding component 11 and the lower holding component 12 respectively include an upper pressure pad 111 and a lower pressure pad 112, and the number of the upper pressure pad 111 and the number of the lower pressure pad 121 are both 2. The lower holding component 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 and is located between the two lower pressure pads 121. During cutting, the upper pressure pad 111 and the lower pressure pad 121 on the same side are fitted together to press the optical fiber from both sides of the cutting gap 122. The blade 53 passes 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 pressure pad 111 will hit the optical fiber.

[0056] Please refer to Figure 1~Figure 4 The main body component 1 includes a connecting shaft 14, the cover body component 2 includes a cover body shaft hole 22, and the panel component 3 includes a panel shaft hole 31. The connecting shaft 14 passes through the cover body shaft hole 22 and the panel shaft hole 31 respectively to connect the cover body component 2 and the panel component 3, and the cover body component 2 and the upper holding component 12 are both rotatable around the connecting shaft 14.

[0057] Please refer to Figure 1~Figure 3 and Fig. 9 The main body component 1 includes a first elastic body 13, which is a U-shaped elastic body, and its rotation axis is a connecting axis 14. The first elastic body 13 always has a force to move the cover body component 2 and the upper holding component 11 away from the panel component 3. In the absence of other forces, the cover body component 2 and the upper holding component 11 are always in a position away from the panel component 3 under the action of the first elastic body 13.

[0058] Please refer to Figure 1~Figure 2 The main body component 1 includes a clamp 15 for clamping the optical fiber and a counter 17 for recording the number of cutting times.

[0059] Please refer to 1 and Figure 3 The cover assembly 2 includes a second elastic body 21. After the cover assembly 2 is connected to the main body assembly 1, the second elastic body 21 is located at the back of the upper holding assembly 11, so that the upper holding assembly 11 can move elastically.

[0060] Please refer to Figure 1 and Figure 3 The cover assembly 2 includes a cover push rod 23, which forms an obtuse angle with the inner side of the cover assembly 2. The push rod 23 is located at the lower side of the cover shaft hole 22 and extends downward. 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.

[0061] Please refer to Figure 1 , Figure 3~Figure 5 , Fig.17 and Fig.18 The cover assembly 2 includes a cover closing gap 24, and the panel assembly 3 includes a switch gap 34 and a closing switch 38. The closing switch 38 passes through the switch gap 34 and can extend into the cover closing gap 24. The cover closing gap 24 is in a long strip shape, and its function is to accommodate the closing switch 38.

[0062] Please refer to him 1 and Figure 3 The cover assembly 2 includes a pressing portion 25 , which protrudes from the lower edge of the cover assembly 2 , and is used to press the limiting portion 55 .

[0063] Please refer to Figure 1 , Figure 4 and Figure 5 The panel assembly 3 includes a knife assembly accommodating portion 32 for accommodating the knife assembly 5 , a clamp accommodating portion 33 for accommodating the clamp 15 , a limiting pressing hole 35 for accommodating the limiting portion 55 , and a counter accommodating groove 36 for accommodating the counter 17 .

[0064] Please refer to Figure 1 , Figure 4~Figure 6 The knife assembly accommodating portion 32 includes a knife assembly guiding portion 321 for guiding the knife assembly 5. The knife assembly 5 includes a knife holder guiding shaft 511. The knife holder guiding shaft 511 is inserted into the knife assembly guiding portion 321, so that the knife assembly 5 moves axially under the guiding action of the knife assembly guiding portion 321.

[0065] Please refer to Figure 1 , Figure 4~Figure 6 and Fig.10 The panel assembly 3 includes a third elastic body 39, and the two sides of the third elastic body 39 are respectively hung on the panel hook 37 of the panel assembly 3 and the knife assembly hook 544 of the knife assembly 5. The third elastic body 39 shrinks naturally in a natural state, so that the knife assembly 5 always has a force close to the panel hook 37.

[0066] Please refer to Figure 1 , Figure 4~Figure 6The panel assembly includes a closing switch 38, and the portion of the closing switch 38 exposed outside the panel assembly 3 is a closing switch push cover 382. The closing switch push cover 382 drives the closing switch 38 to move between the cover body closing gap 24 and the switch gap 34. The part of the closing switch located between the cover body closing gap 24 and the switch gap 34 includes a closing switch protrusion 381, and the closing switch protrusion 381 protrudes toward the cover body assembly 2, and the width of the closing switch protrusion 381 is not greater than the width of the closing gap 24. When the closing switch protrusion 381 is located in the closing gap 24, the opening and closing of the cover body assembly 2 is not affected; when the cover body assembly 2 is closed and connected to the panel assembly 3 to clamp the optical fiber, the closing switch protrusion 381 can slide away from the cover body closing gap 24. At this time, the closing switch protrusion 381 is stuck in the rear side of the cover body assembly 2, and the closing switch protrusion 381 limits the closing of the cover body assembly 2, and the cover body assembly 2 cannot be opened, thereby achieving the closing of the cover body assembly 2.

[0067] The closing switch 38 also includes a closing switch latch 383. A column is provided on the panel assembly 3. When the closing switch 38 closes the cover assembly 2, the closing switch latch 383 slides and latches into the column on the panel assembly 3 to prevent the closing switch 38 from sliding randomly.

[0068] Please refer to Figure 1 , Figure 6~Figure 8 , Figure 14~Figure 16 The knife assembly 5 includes a knife holder body 51, and the middle of the knife holder body 51 includes a knife holder guide shaft 511. One side of the knife holder guide shaft 511 includes a blade 53 and a one-way ratchet 52, and the other side includes a moving part 54. A locking part 56 is included between the moving part 43 and the knife holder guide shaft 511, and the limiting part 55 is included above the locking part 56.

[0069] Please continue to refer to Figure 1 , Figure 6~Figure 8 , Figure 14~Figure 16 The limiting portion 55 includes a limiting shaft 551 , and the panel assembly 31 includes a limiting shaft accommodating groove 352 . The limiting shaft 551 extends into the limiting shaft accommodating groove 352 to connect the limiting portion 55 with the panel assembly 3 .

[0070] One side of the limiting portion 55 includes a fourth elastomer 554, one side of the fourth elastomer 554 is connected to the limiting portion 55, and the other side is accommodated in the fourth elastomer accommodating hole 351 of the panel assembly 3. The fourth elastomer 554 can enable the limiting portion 55 to rotate around the limiting axis 551, and in the absence of external force, the fourth elastomer 554 enables the side including the fourth elastomer 554 to always tilt downward.

[0071] 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 to limit the tool holder body 51 .

[0072] 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 to press 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.

[0073] The bottom of the limiting portion 55 includes a smooth surface 555 .

[0074] 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 be restored under the action of the fourth elastic body 554, and the smooth surface 555 will contact the locking inclined surface 562. At this time, when the tool holder body 51 moves forward, the locking inclined surface 562 and the smooth surface 555 will not be limited until the tool holder body 51 moves forward until the smooth surface 55 is no longer in contact with the locking plane 563, and the limiting surface 552 contacts the limiting surface 552 again, and the limited tool holder body 51 moves backward.

[0075] The tool holder body 51 includes a moving portion 54 , on which a tool assembly hook 544 is disposed. The natural contraction of the third elastic body 39 causes the tool holder body 51 to always have a force to move backward.

[0076] The moving portion 54 includes a push surface 541 in contact with the cover push rod 23. When the cover push rod 23 rotates with the cover, the cover push rod 23 pushes the push surface 541 to move, thereby stretching the third elastic body 39.

[0077] The moving portion 54 further includes an inclined surface 542 and a top surface 543 , wherein the top surface 543 contacts the lower surface of the panel assembly 3 , so that the tool holder assembly 51 is parallel to the panel assembly 3 and maintains a constant horizontal direction.

[0078] 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 contacts the bottom plate sensing device, and the counter 17 displays a count. When the tool holder body 51 moves, the counting key 545 moves away from the sensing device and no longer counts. When the counting key 545 contacts the sensing device again, it counts again.

[0079] Please refer to Figure 1 to Figure 18 The optical fiber cutting device described in the present application includes an initial state and a knife-returning state. In the initial state, the cover body assembly 2 and the panel assembly 3 are closed. In the knife-returning state, the cover body assembly 2 and the panel assembly 3 are separated. The following describes the work flow and working principle of the present application in conjunction with the accompanying drawings.

[0080] Before use, the optical fiber cutting device is closed, at which 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 has no limiting effect on the knife holder body 51, the third elastic body 39 contracts, and the knife assembly 5 approaches the direction of the closing switch 38.

[0081] The sliding closing switch push cover 382 drives the closing switch protrusion 381 to slide into the cover body closing gap 24, and the cover body assembly 2 can be opened and closed.

[0082] 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 to the cover assembly away from the panel assembly 3, and the optical fiber cutting device opens.

[0083] 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 toward the tool holder body 51 .

[0084] 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 axis 551 under the action of the fourth elastic body 554 , and the smooth surface 555 contacts the locking inclined surface 562 and the locking plane 563 .

[0085] 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 stops after opening to about half of the position.

[0086] Manually open the cover assembly 2 to the end, and rotate the cover assembly 2 to be fully opened.

[0087] 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 in a direction away from the connecting shaft 14 .

[0088] Due to the manual opening of the cover assembly 2, 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 contacts and limits the positioning surface 561 of the tool holder body. The limiting portion 55 limits the tool holder body 51 so that it will not be contracted and pulled back by the third elastic body 39.

[0089] During this process, the tool holder body 1 moves, driving the blade 53 to move accordingly, and the one-way ratchet 52 is meshed with the blade gear 531. The one-way ratchet 52 cannot move in this direction, so the blade gear 531 rotates to drive the blade 53 to rotate, thereby realizing automatic rotation of the blade 53.

[0090] The cover assembly 2 is fully opened, and the optical fiber is placed on the clamp 15 and the pressing pad 121, and the optical fiber placement is completed.

[0091] Manually close the cover assembly 2.

[0092] During the process of closing the cover assembly 2, the cover assembly 2 rotates, driving the cover push rod 23 away from the push surface 541, the limiting effect of the cover push rod 23 disappears, the limiting portion 55 limits the tool holder assembly 51, and the tool holder assembly 51 remains away from the connecting shaft 14.

[0093] When the cover assembly 2 is manually closed to make the upper pressure pad 111 and the lower pressure pad 121 basically 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 causes a slight gap between the upper holding assembly 11 and the cover assembly 2.

[0094] 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 to completely press the optical fiber.

[0095] At this time, the cover body assembly 2 and the panel assembly 3 are closed, the cover body pressing part 25 presses the pressing surface 553, the fourth elastic body 554 is compressed, the limiting part 55 rotates, and the limiting effect of the limiting surface 552 on the locking surface 561 disappears. The tool holder body 51 moves toward the direction of the connecting shaft 14 under the action of the third elastic body 39, driving the blade 53 to move, and the blade passes between the upper pressure pad 111 and the lower pressure pad 121 to cut the optical fiber.

[0096] If the optical fiber needs to be cut again, repeat the above steps and open the cover assembly 2 again.

[0097] The above is a detailed introduction to the specific implementation methods of the present invention. For those skilled in the art, several improvements and modifications may be made to the present invention without departing from the principles of the present invention. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An optical fiber cutting device for cutting optical fibers, comprising a main body assembly for accommodating and clamping the optical fibers, the upper side of the main body assembly is rotatably connected to a cover assembly, the surface of the main body assembly is covered by a panel assembly to prevent the internal components from being exposed, the bottom of the main body assembly comprises a bottom plate, characterized in that: The optical fiber cutting device comprises a knife assembly, the knife assembly comprises a knife holder body, the knife holder body comprises a coaxial blade and a blade gear, and also comprises a one-way ratchet fixedly connected to the panel assembly, the blade gear meshes with the one-way ratchet; the one-way ratchet rotates unidirectionally to realize the automatic rotation of the blade in one direction; The knife assembly further includes a moving part and a limiting part, wherein the limiting part is used to limit the knife holder body, and the moving part is used to drive the knife holder body to move; The panel assembly includes a third elastic body, and the two sides of the third elastic body are respectively connected to the tool holder body and the panel assembly, and the panel assembly includes a knife assembly accommodating portion for accommodating the knife assembly; the middle of the tool holder body includes a tool holder guide shaft, and the blade, the blade gear and the one-way ratchet are respectively located on both sides of the tool holder guide shaft with the moving part, and a clamping part is included between the moving part and the tool holder guide shaft, and the upper part of the clamping part includes the limiting part; the limiting part includes a limiting shaft, and the panel assembly includes a limiting shaft accommodating groove, and the limiting shaft extends into the limiting shaft accommodating groove to connect the limiting part with the panel assembly; One side of the limiting part includes a fourth elastic body, and the two sides of the fourth elastic body are respectively connected to the limiting part and the panel assembly, the fourth elastic body enables the limiting part to rotate with the limiting axis as the axis, and the fourth elastic body enables the limiting part including the side of the fourth elastic body to always have a downward force; the limiting part includes a limiting surface, and the locking part 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 tool holder body; The cover assembly includes a cover pressing portion protruding from the lower edge of the cover assembly, the panel assembly includes a limit pressing hole, the limit portion also includes a pressing surface, the pressing surface is accommodated in the limit pressing hole, and the cover pressing portion is used to press the pressing surface; The cover body assembly includes a cover body push rod, which is located at the lower side of the cover body assembly and extends downward, and the head of the cover body push rod includes a push rod rotating body; the moving part includes a push surface in contact with the cover body push rod, and when the cover body push rod rotates with the cover body assembly, the cover body push rod pushes the push surface to move, driving the tool holder body to move, and stretching the third elastomer.

2. The optical fiber cutting device according to claim 1, characterized in that: The cover push rod forms an obtuse angle with the inner side of the cover assembly, and the push rod rotating body is a rotatable roller.

3. The optical fiber cutting device according to claim 1, characterized in that: The moving part is provided with a knife assembly hook; The panel assembly includes a panel hook, and two sides of the third elastic body are respectively hung on the panel hook of the panel assembly and the knife assembly hook of the knife assembly; the natural contraction of the third elastic body causes the knife holder body to always have a force to move backward.

4. The optical fiber cutting device according to claim 1, characterized in that: The cover assembly includes a cover closing gap, the panel assembly includes a switch gap and 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 on the outside of the panel assembly, the closing switch protrusion is located between the closing gap of the cover body and the switch gap, and the closing switch protrusion protrudes toward the cover body assembly, and the width of the closing switch protrusion is not greater than the width of the closing gap of the cover body; when the closing switch protrusion is located in the closing gap of the cover body, the opening and closing of the cover body assembly is not affected; when the closing switch protrusion leaves the closing gap of the cover body, the closing switch protrusion is stuck in the rear side of the cover body assembly, and the closing switch protrusion limits the closing of the cover body assembly, and the cover body assembly cannot be opened, thereby achieving the closing of the cover body assembly.

5. The optical fiber cutting device according to claim 1, characterized in that: The panel assembly includes a counter for recording the number of cutting times; the moving part includes a counting key, and the bottom plate includes a sensing device. The counting key and the sensing device are used to record the number of cutting times and reflect the data to the counter.

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