Ultralow-damage-threshold high-energy laser fiber coupling head

Abstract

The utility model discloses an ultra-low damage threshold large energy laser fiber coupling head, which relates to the technical field of coupling heads, and comprises a laser fiber coupling head body, the end part of the laser fiber coupling head body is connected with a connecting fiber, and the outer side of the laser fiber coupling head body is sleeved with two groups of connecting rings. And rotating blocks are arranged on the sides, away from each other, of the two connecting rings correspondingly. According to the utility model, through the arrangement of the protective cover and the rotating block, the protective effect on the end part of the laser fiber coupling head body can be improved through the mutual cooperation of the rotating block and the protective cover in the use process, so that the head part can be prevented from being directly exposed in the air to cause the attachment of dust and sundries; according to the laser fiber coupling head, the laser fiber coupling head body is arranged to effectively guarantee subsequent normal use of the laser fiber coupling head body, the connecting ring and the mounting plate which are arranged in an arc-shaped structure are arranged, and in the use process, a worker can conveniently detach the connecting ring from the outer side of the laser fiber coupling head body through mutual cooperation of the connecting ring and the mounting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to coupling head technical field especially relates to a kind of super low damage threshold large energy laser fiber coupling head. BACKGROUND

[0002] In the field of laser medical treatment, the transmission and application of super low damage threshold large energy laser are more and more widely, for example, in the treatment of dermatology or ophthalmology surgery, in order to couple super low damage threshold large energy laser into optical fiber efficiently, while reducing the damage to the end face of optical fiber as far as possible, laser fiber coupling head is needed, which can effectively reduce light loss, thereby improving the transmission efficiency of laser.

[0003] At present, in order to prevent dust and impurities from entering and avoid their adhesion on the optical surface, affecting the transmission and coupling efficiency of laser, the end of the coupling head is provided with a dust cap, and the dust cap is directly sleeved by friction force, so that the optical surface of the head of the coupling head is directly exposed to the air, and the dust and particles in the surrounding environment can be adsorbed on the surface, thereby affecting the subsequent normal use, therefore, we propose a kind of super low damage threshold large energy laser fiber coupling head to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a kind of super low damage threshold large energy laser fiber coupling head.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of super low damage threshold large energy laser fiber coupling head, including laser fiber coupling head body, the end of the laser fiber coupling head body is connected with connecting optical fiber, the outside of the laser fiber coupling head body is sleeved with two groups of connecting rings, and the side of the two groups of connecting rings away from each other is respectively provided with rotating block, and the side of rotating block is distributed with two groups of fixed plate, and the side of fixed plate and the outer wall of connecting ring are fixedly connected, rotating block is inserted with rotating rod in the inside, and one end of rotating rod is connected with the inner wall of one of fixed plate by bearing, the other end of rotating rod is connected with connecting block and penetrates another group of fixed plate, the side of rotating block is respectively connected with protective cover.

[0007] Preferably, the side of the connecting block away from rotating rod is distributed with pull block, and the side of pull block is connected with limiting rod, the limiting rod extends into fixed plate from the inside of connecting block, and the inside of fixed plate is provided with two groups of limiting grooves matched with limiting rod.

[0008] Preferably, a slot is formed in the interior of the connecting block, and a spring is vertically connected to the inner wall of the slot, and the other end of the spring is fixedly connected with the pulling block.

[0009] Preferably, a protective sleeve is glued to the outer wall of the protective cover, and the protective sleeve is made of rubber.

[0010] Preferably, the side edges of the two groups of connecting rings are respectively connected with mounting plates, and screw holes are formed in the interiors of the mounting plates.

[0011] Preferably, the pulling block is in a long strip structure, and a rubber sleeve is glued to the outer wall of the pulling block.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The device is provided with a protective cover and a rotating block, and in the use process, the rotating block and the protective cover are matched with each other, so that the protection effect of the end part of the laser fiber coupling head body can be improved, thereby preventing the head part from being directly exposed to the air to cause the adhesion of dust and sundries, and effectively ensuring the normal use of the laser fiber coupling head body in the future.

[0014] 2. The device is provided with a connecting ring and a mounting plate in an arc structure, and in the use process, the connecting ring and the mounting plate are matched with each other, so that the connecting ring can be conveniently detached from the outside of the laser fiber coupling head body by the worker, so that the worker can smoothly overhaul the laser fiber coupling head body, or the connecting ring and the protective cover can be repeatedly used. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic view of an ultra-low damage threshold valve value large energy laser fiber coupling head is provided for the utility model;

[0016] Figure 2 A three-dimensional view of the connecting ring and the protective sleeve structure in Figure 1 ;

[0017] Figure 3 A three-dimensional view of the connecting ring and the mounting plate structure in Figure 1 ;

[0018] Figure 4 A three-dimensional sectional view of the rotating rod and the rotating block structure in Figure 1 ;

[0019] In the drawing: 1, laser fiber coupling head body; 2, connecting optical fiber; 3, connecting ring; 4, rotating block; 5, fixed plate; 6, rotating rod; 7, connecting block; 8, protective cover; 9, protective sleeve; 10, pulling block; 11, limiting rod; 12, spring; 13, mounting plate; 14, limiting groove. Detailed Implementation

[0020] 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.

[0021] Reference Figures 1-4 A high-energy laser fiber coupler with ultra-low damage threshold includes a laser fiber coupler body 1. A connecting fiber 2 is connected to the end of the laser fiber coupler body 1. The connection method between the laser fiber coupler body 1 and the connecting fiber 2 is existing technology and will not be described in detail here. Two sets of connecting rings 3 are sleeved on the outer side of the laser fiber coupler body 1. Rotating blocks 4 are respectively provided on the sides of the two sets of connecting rings 3 that are far apart from each other. Two sets of fixing plates 5 are distributed on the sides of the rotating blocks 4, and the sides of the fixing plates 5 are fixedly connected to the outer walls of the connecting rings 3. The rotating blocks 4 are fixedly sleeved on the outer side of the rotating rod 6. Therefore, when the rotating rod 6 rotates, the rotating blocks 4 can rotate synchronously. The rotating rod 6 is inserted inside the rotating blocks 4, and one end of the rotating rod 6 is connected to the inner wall of one set of fixing plates 5 through a bearing. The other end of the rotating rod 6 passes through the other set of fixing plates 5 and is connected to a connecting block 7. Protective covers 8 are respectively connected to the sides of the rotating blocks 4.

[0022] Furthermore, refer to Figure 3 and Figure 4 It can be seen that there are pull blocks 10 distributed on the side of the connecting block 7 away from the rotating rod 6, and the side of the pull block 10 is connected to the limiting rod 11. The limiting rod 11 extends through the inside of the connecting block 7 into the fixing plate 5. The fixing plate 5 has two sets of limiting grooves 14 that are adapted to the limiting rod 11. During use, the connecting block 7 rotated to the appropriate position can be limited and fixed by the two sets of limiting grooves 14 inside the fixing plate 5 to ensure the protective effect of the protective cover 8 on the head of the laser fiber coupling head 1.

[0023] Furthermore, refer to Figure 4 It can be seen that the connecting block 7 has a slot inside, and the inner wall of the slot is vertically connected to a spring 12. The other end of the spring 12 is fixedly connected to the pull block 10. During use, the spring 12 connected between the pull block 10 and the connecting block 7 can effectively ensure the tightness of the limit rod 11 when it is inserted into the limit groove 14, which can further ensure the limiting effect on the protective cover 8.

[0024] Furthermore, refer to Figure 1 and Figure 2It can be seen that the outer wall of the protective cover 8 is glued with a protective sleeve 9, and the protective sleeve 9 is made of rubber. During use, the protective sleeve 9 made of rubber can protect the end of the protective cover 8 to ensure the service life of the protective cover 8.

[0025] Furthermore, refer to Figure 3 It can be seen that the two sets of connecting rings 3 are respectively connected to the side of the mounting plate 13, and the mounting plate 13 is provided with screw holes. The mounting plates 13 that fit together are connected by bolts. By the cooperation of the bolts, screw holes and mounting plates 13, the two sets of connecting rings 3 can be removed from the outer wall of the laser fiber coupler head body 1 so that the protective cover 8 can prevent the staff from inspecting the laser fiber coupler head body 1. At the same time, the intact connecting rings 3 and protective cover 8 can be reused.

[0026] Furthermore, refer to Figure 3 It can be seen that the pull block 10 is designed as a long strip structure, and the outer wall of the pull block 10 is glued with a rubber sleeve, which is not shown in the figure. The glued rubber sleeve can effectively prevent the operator from slipping while pulling the pull block 10. Since the pull block 10 is designed as a long strip structure, it is convenient for the operator to pull the pull block 10.

[0027] Working principle: When using this utility model, the operator can first move the device to a suitable position, and then pull the pull block 10 in sequence to drive the connected limiting rod 11 to move under force and be pulled out from one of the limiting grooves 14 opened inside the fixing plate 5. Then the operator can rotate the pull block 10 and the connecting block 7, thereby driving the rotating rod 6, the rotating block 4 and the protective cover 8 to rotate simultaneously. When the protective cover 8 is rotated 90 degrees, the position of the limiting rod 11 is aligned with the other set of limiting grooves 14 opened inside the fixing plate 5. With the positions corresponding, the operator can then stop pulling up the pull block 10, allowing the limiting rod 11 to be embedded in the limiting groove 14 to limit the rotation block 4. The operator can then repeat the above operation and rotate the other set of protective covers 8 ninety degrees, thereby opening the end of the laser fiber coupling head body 1. The operator can then use plug-in or other methods to couple the laser fiber coupling head body 1 and the laser, so that the laser can be efficiently coupled into the connecting fiber 2. The above is the complete working principle of this utility model.

[0028] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0029] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0030] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A laser fiber coupler with an ultra-low damage threshold and high energy, comprising a laser fiber coupler body (1), characterized in that, The laser fiber coupling head body (1) is connected to a connecting fiber (2) at its end. Two sets of connecting rings (3) are sleeved on the outer side of the laser fiber coupling head body (1). Rotating blocks (4) are respectively provided on the side of the two sets of connecting rings (3) that are far apart from each other. Two sets of fixing plates (5) are distributed on the side of the rotating block (4). The side of the fixing plate (5) is fixedly connected to the outer wall of the connecting ring (3). A rotating rod (6) is inserted inside the rotating block (4). One end of the rotating rod (6) is connected to the inner wall of one set of fixing plates (5) through a bearing. The other end of the rotating rod (6) passes through the other set of fixing plates (5) and is connected to a connecting block (7). Protective covers (8) are respectively connected to the side of the rotating block (4).

2. The ultra-low damage threshold high-energy laser fiber coupler according to claim 1, characterized in that, The connecting block (7) has a pull block (10) distributed on the side away from the rotating rod (6), and the side of the pull block (10) is connected to a limit rod (11). The limit rod (11) extends through the interior of the connecting block (7) into the fixing plate (5), and the interior of the fixing plate (5) is provided with two sets of limit grooves (14) that are adapted to the limit rod (11).

3. The ultra-low damage threshold high-energy laser fiber coupler according to claim 1, characterized in that, The connecting block (7) has a slot inside, and a spring (12) is vertically connected to the inner wall of the slot. The other end of the spring (12) is fixedly connected to the pull block (10).

4. The ultra-low damage threshold high-energy laser fiber coupler according to claim 1, characterized in that, The outer wall of the protective cover (8) is glued with a protective sleeve (9), and the protective sleeve (9) is made of rubber.

5. The ultra-low damage threshold high-energy laser fiber coupler according to claim 1, characterized in that, The two sets of connecting rings (3) are respectively connected to mounting plates (13) on their sides, and the mounting plates (13) are all provided with screw holes inside.

6. The ultra-low damage threshold high-energy laser fiber coupler according to claim 2, characterized in that, The pull block (10) is configured as a long strip structure, and the outer wall of the pull block (10) is glued with a rubber sleeve.

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