A fiber optic cleaver height adjustment mechanism

Abstract

The utility model discloses a kind of height adjustment mechanisms of optical fiber cutting knife, it is related to optical fiber cutting knife technical field, it includes installation shell, the top of installation shell is connected with fixed shell by height adjustment assembly, the top of fixed shell is connected with tool rest by angle adjustment assembly, and the top of tool rest is installed with optical fiber cutting knife body, the height adjustment assembly includes height self-locking device, transmission shaft is rotatably installed in the middle part of installation shell, gear is fixedly sleeved in the front end of transmission shaft, rack is engaged with gear, and lifting column is welded to the top outer wall of rack. The height adjustment assembly of the utility model contains height self-locking device, in the process of height adjustment, by the self-locking performance after the engagement of worm and worm wheel, the displacement situation of optical fiber cutting knife body can be avoided under stress in cutting process, thereby the stability after height adjustment can be effectively guaranteed, the adjustment effect of height adjustment mechanism is helped to guarantee.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic cleaver technology, and in particular to a fiber optic cleaver height adjustment mechanism. Background Technology

[0002] Fiber optic cleavers are indispensable tools in fiber optic communication engineering construction and fiber optic device manufacturing. Their cutting quality directly affects the loss and reliability of fiber optic connections. The cutting height of the cleaver blade is crucial to the cutting quality. If the blade height is too high, it may result in uneven fiber cutting, burrs, or cracks; if the blade height is too low, it may damage the fiber cladding or even cause the fiber to break.

[0003] A search revealed that patent application number 202120377306.4 discloses a height adjustment device for an optical fiber cleaver, comprising a frame and a cleaver. The cleaver is disposed inside the frame, with its bottom end positioned above the adjustment mechanism. This patent achieves cleaver height adjustment through a threaded connection between a lead screw and a lifting block. However, the cleaver is subjected to force during the cutting process, which may cause the lead screw to unexpectedly reverse, leading to unintended movement of the cleaver and affecting the stability of the adjusted height. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fiber optic cleaver height adjustment mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fiber optic cleaver height adjustment mechanism includes a mounting housing, a fixed housing connected to the top of the mounting housing via a height adjustment component, a cleaver holder connected to the top of the fixed housing via an angle adjustment component, and a fiber optic cleaver body mounted on the top of the cleaver holder. The height adjustment assembly includes a height self-locking device, a drive shaft rotatably mounted in the middle of the mounting housing, a gear fixedly mounted on the front end of the drive shaft, a rack meshing with the gear, and a lifting column welded to the outer wall of the top of the rack. The height self-locking device includes a fixed cover fixedly connected to the outer wall of the back of the mounting housing, a control shaft rotatably mounted on the fixed cover, a worm gear fixedly mounted on the control shaft, and a worm wheel fixedly mounted on the rear end of the transmission shaft. The angle adjustment assembly includes an angle adjustment shaft rotatably mounted on a fixed housing, a ratchet fixedly fitted at the bottom end of the angle adjustment shaft, and a pawl rotatably connected to the inner wall of the bottom of the fixed housing via a rotating pin. The outer wall of the top end of the angle adjustment shaft is fixedly connected to the outer wall of the bottom center of the tool holder.

[0006] Preferably, both the gear and the rack are located inside the mounting housing, and a maintenance cover is fixedly connected to the front outer wall of the mounting housing by bolts.

[0007] Preferably, the worm and worm wheel mesh with each other and are both located inside the fixed cover, and an adjustment knob is fixedly connected to the outer wall of one end of the control shaft.

[0008] Preferably, the top of the mounting housing has a limiting hole, and the outer wall of the lifting column is slidably connected to the inner wall of the limiting hole.

[0009] Preferably, the ratchet and pawl mesh with each other and are both located inside the fixed housing. A spring seat is fixedly connected to the bottom inner wall of the fixed housing, and the same connecting spring is fixedly connected between the spring seat and the pawl.

[0010] Preferably, two threaded pins are symmetrically welded to the top outer wall of the blade holder, and two insertion holes are symmetrically opened on the fiber optic cutting blade body, with the two threaded pins respectively inserted into the two insertion holes.

[0011] Preferably, the upper part of each of the two threaded pins is threaded with a locking nut, and both locking nuts form a tight fit with the surface of the fiber optic cleaver body.

[0012] The beneficial effects of this utility model are as follows: 1. The height adjustment component of this utility model contains a height self-locking device. During the height adjustment process, the self-locking performance of the worm gear and worm wheel after meshing can prevent the fiber optic cleaver from being displaced due to force during the cutting process, thereby effectively ensuring the stability after the height adjustment is completed and helping to ensure the adjustment effect of the height adjustment mechanism. 2. This utility model is equipped with an angle adjustment component, which allows for flexible adjustment of the operating angle of the fiber optic cutting blade by directly rotating the blade holder. When the blade holder rotates, it drives the angle adjustment shaft to rotate. With the meshing and self-locking effect of the ratchet and pawl, the blade holder can automatically lock at any angle when rotated, which helps to ensure the stability during the angle adjustment process. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional enlarged structural diagram of the tool holder, fiber optic cutting tool body and angle adjustment shaft of this utility model in a separated state; Figure 3 This is a three-dimensional structural diagram of the internal area of ​​the mounting housing of this utility model; Figure 4 This is a rear three-dimensional structural diagram of the mounting housing of this utility model; Figure 5This is a schematic diagram of the vertical cross-sectional structure inside the fixing cover of this utility model; Figure 6 This is a three-dimensional enlarged structural diagram of the interior of the fixed shell of this utility model.

[0014] In the diagram: 1. Mounting housing; 2. Fixing housing; 3. Tool holder; 4. Fiber optic cutting tool body; 5. Drive shaft; 6. Gear; 7. Rack; 8. Lifting column; 9. Fixing cover; 10. Control shaft; 11. Worm gear; 12. Worm wheel; 13. Adjustment knob; 14. Limit hole; 15. Inspection cover; 16. Angle adjustment shaft; 17. Ratchet; 18. Pawl; 19. Spring seat; 20. Connecting spring; 21. Threaded pin; 22. Insertion hole; 23. Locking nut. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example 1, referring to Figure 1-5 A fiber optic cleaver height adjustment mechanism includes a mounting housing 1, a fixed housing 2 connected to the top of the mounting housing 1 via a height adjustment component, and a cleaver holder 3 connected to the top of the fixed housing 2 via an angle adjustment component. In this embodiment, a fiber optic cleaver body 4 is mounted on the top of the cleaver holder 3. Specifically, two threaded pins 21 are symmetrically welded to the top outer wall of the cleaver holder 3, and two insertion holes 22 are symmetrically opened on the fiber optic cleaver body 4. The two threaded pins 21 are respectively inserted into the two insertion holes 22. Furthermore, a locking nut 23 is threadedly connected to the upper part of each of the two threaded pins 21. The two locking nuts 23 form a tight fit with the surface of the fiber optic cleaver body 4. In this way, when the fiber optic cleaver body 4 is installed, it is aligned with the two threaded pins 21 through the two insertion holes 22 and inserted. After being inserted into place, the two locking nuts 23 are tightened to achieve a locking and fixing effect. In subsequent disassembly, the fiber optic cleaver body 4 can be directly removed and replaced simply by unscrewing the two locking nuts 23. This makes the disassembly and assembly of the fiber optic cleaver body 4 and the cleaver holder 3 convenient and effectively improves the ease of installation. Specifically, the height adjustment assembly includes a height self-locking device, a drive shaft 5 rotatably mounted in the middle of the mounting housing 1, a gear 6 fixedly mounted on the front end of the drive shaft 5, a rack 7 meshing with the gear 6, and a lifting column 8 welded to the top outer wall of the rack 7. Furthermore, the height self-locking device includes a fixed cover 9 fixedly connected to the outer wall of the back of the mounting housing 1, a control shaft 10 rotatably mounted on the fixed cover 9, a worm gear 11 fixedly mounted on the control shaft 10, and a worm wheel 12 fixedly mounted on the rear end of the transmission shaft 5. Furthermore, gear 6 and rack 7 are both located inside the mounting housing 1. The front outer wall of the mounting housing 1 is fixedly connected to the inspection cover 15 by bolts. Worm 11 and worm wheel 12 mesh with each other and are both located inside the fixed cover 9. One end of the control shaft 10 is fixedly connected to the outer wall of the control shaft 10. The top of the mounting housing 1 has a limit hole 14. The outer wall of the lifting column 8 is slidably connected to the inner wall of the limit hole 14. The working principle of the height adjustment component in this embodiment is as follows: The worm gear 11 on the control shaft 10 is driven to rotate by the adjustment knob 13. Subsequently, the worm wheel 12 meshing with the worm gear 11 drives the gear 6 on the transmission shaft 5 to rotate. In turn, the rack 7 meshing with the gear 6 drives the lifting column 8 to move linearly. In this way, the lifting column 8 can be raised and lowered by simply rotating the external adjustment knob 13 in both directions. This allows for flexible adjustment of the height of the fiber optic cutting blade 4 mounted on the blade holder 3 to meet actual usage requirements. During the height adjustment process, the self-locking performance of the worm gear 11 and worm wheel 12 after meshing can prevent the fiber optic cutting blade 4 from being displaced due to force during the cutting process. This effectively ensures the stability after the height adjustment is completed and helps to ensure the adjustment effect of the height adjustment mechanism.

[0017] Example 2, refer to Figure 1-2 and Figure 6 This embodiment is an optimization based on embodiment 1. Specifically, the angle adjustment component includes an angle adjustment shaft 16 rotatably mounted on the fixed housing 2, a ratchet 17 fixedly fitted on the bottom end of the angle adjustment shaft 16, and a pawl 18 rotatably connected to the bottom inner wall of the fixed housing 2 via a rotating pin. The top outer wall of the angle adjustment shaft 16 is fixedly connected to the bottom center outer wall of the tool holder 3. Furthermore, the ratchet 17 and the pawl 18 mesh with each other and are both located inside the fixed housing 2. A spring seat 19 is fixedly connected to the bottom inner wall of the fixed housing 2, and the same connecting spring 20 is fixedly connected between the spring seat 19 and the pawl 18. The working principle of the angle adjustment component in this embodiment is as follows: After the fiber optic cleaver 4 is installed, the angle of use of the fiber optic cleaver 4 can be flexibly adjusted by directly rotating the cleaver holder 3. When the cleaver holder 3 rotates, it will drive the angle adjustment shaft 16 to rotate. Under the meshing and self-locking effect of the ratchet 17 and the pawl 18, the cleaver holder 3 can automatically lock at any angle when it rotates to any angle, which helps to ensure the stability of the angle adjustment process.

[0018] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber optic cleaver height adjustment mechanism, comprising a mounting housing (1), characterized in that, The top of the mounting housing (1) is connected to a fixed housing (2) via a height adjustment component, the top of the fixed housing (2) is connected to a blade holder (3) via an angle adjustment component, and a fiber optic cutting blade (4) is mounted on the top of the blade holder (3). The height adjustment assembly includes a height self-locking device, a drive shaft (5) rotatably mounted in the middle of the mounting housing (1), a gear (6) fixedly mounted on the front end of the drive shaft (5), a rack (7) meshing with the gear (6), and a lifting column (8) welded to the top outer wall of the rack (7). The height self-locking device includes a fixed cover (9) fixedly connected to the outer wall of the back of the mounting housing (1), a control shaft (10) rotatably mounted on the fixed cover (9), a worm gear (11) fixedly mounted on the control shaft (10), and a worm wheel (12) fixedly mounted on the rear end of the transmission shaft (5). The angle adjustment assembly includes an angle adjustment shaft (16) rotatably mounted on a fixed housing (2), a ratchet (17) fixedly fitted at the bottom of the angle adjustment shaft (16), and a pawl (18) rotatably connected to the inner wall of the bottom of the fixed housing (2) via a rotating pin. The outer wall of the top of the angle adjustment shaft (16) is fixedly connected to the outer wall of the bottom center of the tool holder (3).

2. The fiber optic cleaver height adjustment mechanism according to claim 1, characterized in that, The gear (6) and rack (7) are both located inside the mounting housing (1), and the front outer wall of the mounting housing (1) is fixedly connected to the inspection cover (15) by bolts.

3. The fiber optic cleaver height adjustment mechanism according to claim 1, characterized in that, The worm (11) and worm wheel (12) mesh with each other and are both located inside the fixed cover (9), and an adjustment knob (13) is fixedly connected to the outer wall of one end of the control shaft (10).

4. The fiber optic cleaver height adjustment mechanism according to claim 1, characterized in that, The top of the mounting housing (1) has a limiting hole (14), and the outer wall of the lifting column (8) is slidably connected to the inner wall of the limiting hole (14).

5. The fiber optic cleaver height adjustment mechanism according to claim 1, characterized in that, The ratchet (17) and pawl (18) mesh with each other and are both located inside the fixed shell (2). A spring seat (19) is fixedly connected to the bottom inner wall of the fixed shell (2), and the same connecting spring (20) is fixedly connected between the spring seat (19) and the pawl (18).

6. The fiber optic cleaver height adjustment mechanism according to claim 1, characterized in that, The top outer wall of the blade holder (3) is symmetrically welded with two threaded pins (21), and the fiber optic cutting blade body (4) is symmetrically opened with two insertion holes (22), and the two threaded pins (21) are respectively inserted into the two insertion holes (22).

7. The fiber optic cleaver height adjustment mechanism according to claim 6, characterized in that, Both of the threaded pins (21) are threaded with locking nuts (23) on their upper parts, and both locking nuts (23) are fastened to the surface of the fiber optic cutter body (4).

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