CN220526035U

CN220526035U - Cutting reset mechanism of optical fiber cutting knife

Info

Publication number: CN220526035U
Application number: CN202322249845.1U
Authority: CN
Inventors: 李燕端
Original assignee: Shenzhen Deyongfu Technology Co ltd
Current assignee: Shenzhen Deyongfu Technology Co ltd
Priority date: 2023-08-19
Filing date: 2023-08-19
Publication date: 2024-02-23
Anticipated expiration: 2033-08-19

Abstract

The utility model discloses a cutting reset mechanism of an optical fiber cutting knife, which comprises a base, a middle shell, a gland, a sliding block, a turning plate and a clamping hook, wherein the middle shell is fixedly connected with the base, the gland is hinged with the middle shell, the sliding block is connected with the middle shell in a front-back sliding way, the rear end of the turning plate is penetrated with a shaft lever and is in running fit with the shaft lever, two ends of the shaft lever are connected with the middle shell, a first torsion spring is sleeved on the shaft lever and is used for driving the turning plate to turn in a straight direction, the front end of the turning plate applies thrust to the sliding block, a pressing rod is arranged on the gland, and the lower end of the pressing rod is aligned with the turning plate; the side part of the sliding block is provided with a clamping hook capable of overturning within a preset angle, the upper end of the clamping hook is provided with a hook head, the middle shell is provided with a clamping hole, a second torsion spring is connected between the clamping hook and the sliding block, and the second torsion spring is used for driving the front end of the clamping hook to overturn upwards; a tension spring is connected between the sliding block and the middle shell, and a unhooking driving rod which can be inserted into the clamping hole is arranged on the gland. Compared with the prior art, the utility model has compact structure and saves more space.

Description

Cutting reset mechanism of optical fiber cutting knife

Technical Field

The utility model relates to an optical fiber cutter, in particular to a cutting reset mechanism of the optical fiber cutter.

Background

In the existing optical fiber cutter, a sliding block for bearing the cutter is required to be provided with a limiting and clamping mechanism, and related structures are disclosed in Chinese patent publication with publication number of CN104260129B and name of "a handheld and desk type dual-purpose simple optical fiber cutter", wherein:

when the optical fibers are cut, after the optical fibers are put into the optical fibers, the large pressing plate assembly is pressed, when the large pressing plate assembly is meshed with two pairs of optical fiber pressing seats on the fixing seat, the large pressing plate 1 is continuously pressed, the feeler lever 8 on the large pressing plate 1 touches the pressing head 14, the sliding block boss is separated from the hook head 7, the sliding block assembly drives the blade 9 to move leftwards under the action of the tension spring 20, and the pressing head 14 is lifted upwards against the elastic force of the spring of the pressing head 14 under the limitation of the straight-face baffle 16; when the sliding block assembly moves to the extreme end, the pressure head 14 breaks away from the limit of the straight-face baffle 16, and the pressure head 14 drives the optical fiber pressing seat to fall to break the optical fiber, so that one-time cutting is completed;

in the structure, the slider is limited and clamped by the hook, but the hook adopts a lever mechanism, the front end and the rear end of the shaft rod of the lever mechanism occupy a certain movement space, and the position of the rear end of the hook is also required to be provided with a compression spring and other mechanisms, so that the occupied space of the position is larger, and the reasonable layout of the internal mechanism of the optical fiber cutting knife is not facilitated.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a cutting reset mechanism of an optical fiber cutting knife with compact structure and space saving aiming at the defects of the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme.

The utility model provides a cutting canceling release mechanical system of fiber cutting knife, its includes base, mesochite, gland, slider and turns over the board, the mesochite with base fixed connection, the gland with mesochite hinged joint, the slider with the mesochite back and forth sliding connection, the rear end of turning over the board wears to be equipped with the axostylus axostyle and both normal running fit, the both ends of axostylus axostyle are connected in the mesochite, the cover is equipped with first torsional spring on the axostylus axostyle, first torsional spring is used for driving the turning over the board to the straight direction upset, by the front end of turning over the board is exerted thrust to the slider, be equipped with the depression bar on the gland, the lower extreme of depression bar with turn over the board alignment setting, when the gland pressfitting in the mesochite top, the depression bar is driven to turn over the board to the vertical direction upset; the side part of the sliding block is provided with a hook capable of overturning within a preset angle, the upper end of the hook is provided with a hook head, the middle shell is provided with a clamping hole, a second torsion spring is connected between the hook and the sliding block and used for driving the front end of the hook to overturn upwards, and when the sliding block slides forwards, the hook head is clamped into the clamping hole; the sliding block is connected with the middle shell through a tension spring, a unhooking driving rod capable of being inserted into the clamping hole is arranged on the gland, when the gland is pressed downwards, the unhooking driving rod stretches into the clamping hole and presses down the hook head, and when the hook head is separated from the clamping hole, the sliding block is driven to slide backwards through the tension force exerted by the tension spring.

Preferably, a hook limiting block is arranged at the front end of the hook, a limit stop is formed on the side portion of the sliding block, and the hook limiting block is located below the limit stop.

Preferably, the front end of the flap is formed with a rounded end.

Preferably, the end part of the round angle is provided with a first roller in rolling fit with the rear end surface of the sliding block.

Preferably, a rounded transition part is formed at the junction of the rear end and the bottom end of the sliding block.

Preferably, the lower end of the pressure bar is provided with a second roller in rolling fit with the turning plate.

In the cutting reset mechanism of the optical fiber cutting knife disclosed by the utility model, in a reset state when the gland is opened, the first torsion spring applies torsion to the turning plate so as to drive the turning plate to turn over in a straight direction, the front end of the turning plate is abutted against the rear end of the sliding block and plays a limiting role, when the gland is pressed, the lower end of the pressing rod applies pressure to the turning plate so as to drive the turning plate to turn over in a vertical direction until the limiting role of the sliding block is removed, at the moment, the sliding block can be driven to perform cutting action by means of an elastic driving mechanism such as a tension spring of the middle shell, and the lower end of the pressing rod is gradually far away from the turning plate when cutting is completed and the gland is opened again, and the turning plate is driven to turn over in the straight direction again under the action of the elastic force applied by the first torsion spring, and meanwhile, the sliding block is pushed until the turning plate is abutted against the rear end of the sliding block. Along with the forward movement of the slider, the second torsion spring continuously applies torsion to the hook until the hook head is clamped into the clamping hole, and when the gland is pressed next time, the unhooking driving rod is aligned and stretches into the clamping hole until the unhooking driving rod presses down the hook head, so that the hook head and the clamp Kong Fenli are enabled, and at the moment, the tension spring drives the slider to slide backwards and drives the tool bit to execute the action of cutting the optical fiber. Compared with the prior art, the utility model has compact structure, saves more space, can effectively implement limiting action, and better meets application requirements.

Drawings

FIG. 1 is a perspective view of a fiber cleaver;

FIG. 2 is an internal block diagram of the fiber cutter;

FIG. 3 is a partially exploded view of the fiber cutter in an open state;

FIG. 4 is a partially exploded view of a second fiber cutter in an open position;

FIG. 5 is a partially exploded view of the optical fiber cleaver in a capped condition;

fig. 6 is a partially exploded view of a fiber cutter in a capped condition.

Detailed Description

The utility model is described in more detail below with reference to the drawings and examples.

The utility model discloses a cutting reset mechanism of an optical fiber cutting knife, which is shown in combination with fig. 1 to 6 and comprises a base 1, a middle shell 2, a gland 3, a sliding block 4, a turning plate 5 and a clamping hook 43, wherein the middle shell 2 is fixedly connected with the base 1, the gland 3 is hinged with the middle shell 2, the sliding block 4 is connected with the middle shell 2 in a sliding way back and forth, the rear end of the turning plate 5 is penetrated with a shaft lever 6 and is in rotating fit with the shaft lever 6, the two ends of the shaft lever 6 are connected with the middle shell 2, a first torsion spring 7 is sleeved on the shaft lever 6, the first torsion spring 7 is used for driving the turning plate 5 to turn in a straight direction, thrust is applied to the sliding block 4 by the front end of the turning plate 5, a pressing rod 8 is arranged on the gland 3, the lower end of the pressing rod 8 is aligned with the turning plate 5, and when the gland 3 is pressed on the top of the middle shell 2, the pressing rod 8 drives the turning plate 5 to turn in a vertical direction;

the clamping hook 43 is arranged on the side part of the sliding block 4 and can turn over in a preset angle, the upper end of the clamping hook 43 is provided with a hook head 430, the middle shell 2 is provided with a clamping hole 21, a second torsion spring is connected between the clamping hook 43 and the sliding block 4 and is used for driving the front end of the clamping hook 43 to turn over upwards, and when the sliding block 4 slides forwards, the hook head 430 is clamped into the clamping hole 21;

a tension spring 9 is connected between the slider 4 and the middle shell 2, a unhooking driving rod 31 which can be inserted into the clamping hole 21 is arranged on the gland 3, when the gland 3 is pressed downwards, the unhooking driving rod 31 stretches into the clamping hole 21 and presses down the hook head 430, and when the hook head 430 is separated from the clamping hole 21, the slider 4 is driven to slide backwards by the tension force exerted by the tension spring 9.

In the above structure, in the reset state when the gland 3 is opened, the first torsion spring 7 applies torsion to the flap 5 to drive the flap 5 to turn in a straight direction, the front end of the flap 5 abuts against the rear end of the slider 4 and plays a limiting role, when the gland 3 is pressed, the lower end of the compression rod 8 applies pressure to the flap 5 to drive the flap 5 to turn in a vertical direction until the limiting role of the slider 4 is removed, at this time, the lower end of the compression rod 8 gradually moves away from the flap 5 when the cutting is completed and the gland 3 is opened again, and drives the flap 5 to turn in a straight direction again under the elastic force applied by the first torsion spring 7, and simultaneously pushes the slider 4 until abutting against the rear end of the slider 4. Along with the forward movement of the slider 4, the second torsion spring continuously applies torsion to the hook 43 until the hook head 430 is clamped into the clamping hole 21, and when the pressing cover 3 is pressed next time, the unhooking driving rod 31 aligns with and stretches into the clamping hole 21 until the unhooking driving rod 31 presses down the hook head 430, so that the hook head 430 is separated from the clamping hole 21, and at the moment, the tension spring 9 drives the slider 4 to slide backwards and drives the tool bit to execute the action of cutting the optical fiber. Compared with the prior art, the utility model has compact structure, saves more space, can effectively implement limiting action, and better meets application requirements.

Further, a hook stopper 431 is disposed at the front end of the hook 430, a limit stop 434 is formed on the side portion of the slider 4, and the hook stopper 431 is located below the limit stop 434. The hook stopper 431 is used for limiting the turning angle of the hook 43.

As a preferred elastic driving mechanism, in this embodiment, a tension spring 9 is connected between the slider 4 and the middle case 2, and the tension spring 9 is used for driving the slider 4 to slide backward. Specifically, the slider 4 is provided with a connecting rod 41, and the front end of the tension spring 9 is sleeved on the connecting rod 41.

In this embodiment, the front end of the flap 5 is formed with a rounded end 50. Wherein, through setting up fillet tip 50, can avoid the corner of turning over board 5 with the rear end face of slider 4 takes place to interfere, rub between.

In order to better cooperate with the slider 4, in this embodiment, the rounded end 50 is provided with a first roller 51 in rolling engagement with the rear end surface of the slider 4. In practical application, the outer ring surface of the rounded end 50 is flush with the surface of the rounded end 50 or slightly protrudes to the outer side of the rounded end 50, so as to realize rolling fit with the rear end surface of the slider 4.

Preferably, a rounded transition portion 40 is formed at the junction of the rear end and the bottom end of the slider 4. The rounded transition portion 40 is provided in this embodiment, so that the rounded end portion 50 can be more smoothly engaged with the rear end corner of the slider 4 when it moves to the rear end corner.

In this embodiment, the pressing rod 8 and the turning plate 5 are preferably driven by rolling fit, and specifically, a second roller 80 that is in rolling fit with the turning plate 5 is disposed at the lower end of the pressing rod 8.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a cutting canceling release mechanical system of fiber cutting knife, its characterized in that, including base (1), well shell (2), gland (3), slider (4), turn over board (5) and trip (43), well shell (2) with base (1) fixed connection, gland (3) with well shell (2) hinged joint, slider (4) with well shell (2) front and back sliding connection, the rear end of turning over board (5) wears to have axostylus axostyle (6) and both normal running fit, the both ends of axostylus axostyle (6) are connected in well shell (2), the cover is equipped with first torsional spring (7) on axostylus axostyle (6), first torsional spring (7) are used for driving turning over board (5) to straight direction upset, by the front end of turning over board (5) to slider (4), be equipped with depression bar (8) on gland (3), the lower extreme of depression bar (8) with turn over board (5) alignment setting, when pressfitting (3) in well shell (2) turn over board (8) to the vertical direction of turning over board (5);

the clamping hook (43) is arranged on the side part of the sliding block (4) and can turn over in a preset angle, a hook head (430) is arranged at the upper end of the clamping hook (43), a clamping hole (21) is formed in the middle shell (2), a second torsion spring is connected between the clamping hook (43) and the sliding block (4), the second torsion spring is used for driving the front end of the clamping hook (43) to turn over upwards, and when the sliding block (4) slides forwards, the hook head (430) is clamped into the clamping hole (21);

a tension spring (9) is connected between the sliding block (4) and the middle shell (2), a unhooking driving rod (31) which can be inserted into the clamping hole (21) is arranged on the gland (3), when the gland (3) is pressed downwards, the unhooking driving rod (31) stretches into the clamping hole (21) and presses down the hook head (430), and when the hook head (430) is separated from the clamping hole (21), the sliding block (4) is driven to slide backwards by the pulling force exerted by the tension spring (9).

2. The optical fiber cutter cutting reset mechanism according to claim 1, wherein a hook stopper (431) is provided at a front end of the hook (430), a limit stop (434) is formed at a side portion of the slider (4), and the hook stopper (431) is located below the limit stop (434).

3. The cutting reset mechanism of the optical fiber cutting knife according to claim 1, wherein the front end of the turning plate (5) is formed with a rounded end (50).

4. A cutting reset mechanism of an optical fiber cutting knife according to claim 3, wherein the rounded end (50) is provided with a first roller (51) in rolling fit with the rear end surface of the slider (4).

5. The cutting reset mechanism of the optical fiber cutting knife according to claim 1, wherein a fillet transition (40) is formed at the junction of the rear end and the bottom end of the slider (4).

6. The cutting reset mechanism of the optical fiber cutting knife according to claim 1, wherein the lower end of the pressing rod (8) is provided with a second roller (80) in rolling fit with the turning plate (5).