Light spot size adjusting handle

Abstract

The utility model relates to a light spot size adjusting handle which comprises a shell and an optical fiber connector. The lens moving frame is arranged in the shell and comprises a concave lens, an inner cylinder, an outer cylinder and a ball; the transmission mechanism is arranged in the shell through a bearing and comprises a threaded lead screw, a bearing, a worm gear and a worm, and the threaded lead screw is in threaded transmission connection with the outer barrel and is in transmission connection with the worm through the worm gear; and the convex lens, the reflecting mirror and the lens sheet are all arranged in the shell. Through the arrangement of the lens moving frame and the transmission mechanism, the effect of changing the position of the concave lens is achieved, the concave lens moves along with the lens moving frame in the direction of the moving groove, and the distance between the concave lens and the convex lens is changed in the process. Therefore, the irradiation range of the optical fiber diverged by the concave lens is changed together, and the effect of changing the size of the light spot is further realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser physiotherapy handle technical field, concretely relates to spot size adjustment handle. BACKGROUND

[0002] Laser physiotherapy is a kind of phototherapy, it refers to the weak laser direct irradiation biological tissue and causes a series of biological effects, to achieve the purpose of treating diseases.

[0003] The equipment used in the process of laser physiotherapy is called laser physiotherapy instrument, laser physiotherapy instrument is generally divided into laser main machine and laser handle two parts, laser main machine sends out laser and controls the power of laser, laser is transmitted to laser handle through optical fiber, and the diseased area of patient is treated by the way of handheld laser handle;

[0004] The spot size of the traditional laser handle is inconvenient to adjust, and is mostly adjusted by replacing the treatment head at the laser handle, which not only needs to prepare different specifications of treatment heads in advance, but also needs to stop and replace during the replacement process, so the spot size adjustment handle is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] Based on the above description, the utility model provides a spot size adjustment handle to solve the problem that the spot size of the existing laser treatment handle is inconvenient to adjust.

[0006] The technical scheme that the utility model solves the above technical problem is as follows: the spot size adjustment handle comprises an outer shell, an optical fiber joint and a lens moving frame, the lens moving frame is arranged in the interior of the outer shell and comprises a concave lens, an inner cylinder, an outer cylinder and a ball bearing, a transmission mechanism is arranged in the interior of the outer shell through a bearing and comprises a threaded lead screw, a bearing, a worm gear and a worm, the threaded lead screw is in threaded transmission connection with the outer cylinder and is in transmission connection with the worm gear through the worm gear, a convex lens, a reflector and a lens sheet are all arranged in the interior of the outer shell and are in triangular distribution, and the center line of the convex lens and the concave lens is on the same straight line.

[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0008] Further, the outer shell comprises half shells, and the two half shells are connected to each other by screws.

[0009] Further, the opposite sides of the half shells are sequentially provided with an optical fiber fixing groove, a moving groove, a lens clamping groove, a light transmission cavity and a positioning groove that are in communication with each other, the inner wall of the moving groove is provided with a transmission groove, and the optical fiber joint is arranged in the interior of the optical fiber fixing groove.

[0010] Further, the lens moving frame is arranged in the interior of the moving groove and extends to the interior of the transmission groove.

[0011] Further, the inner wall of the light line conveying cavity is provided with a mounting groove, and a reflecting mirror is arranged in the interior of the mounting groove.

[0012] Further, the interior of the lens clamping groove is provided with a convex lens, and the interior of the positioning groove is provided with a lens sheet.

[0013] Further, the inner cylinder comprises a half inner cylinder, two ends of opposite sides of the half inner cylinder are respectively provided with a connecting blind hole and a connecting column, the connecting column can be inserted into the interior of the connecting blind hole, the outer surface of the half inner cylinder is provided with an outer connecting groove and a half ball groove, and the half inner cylinder is arranged outside the concave lens.

[0014] Further, the outer cylinder comprises a half outer cylinder, the half outer cylinder is arranged outside the half inner cylinder, the half outer cylinder is distributed in a staggered manner with the half inner cylinder, the inner surface of the half outer cylinder is provided with a connecting ring plate and a through hole, the connecting ring plate extends to the interior of the outer connecting groove, and the through hole is provided with a ball between the half ball groove.

[0015] Further, one side of the half outer cylinder is provided with a linkage block, and the surface of the linkage block is provided with a threaded hole matched with the threaded screw rod.

[0016] Further, the threaded screw rod is arranged in the interior of the transmission groove through a bearing, one end of the threaded screw rod is provided with a worm wheel, the interior of the transmission groove is provided with a worm matched with the worm wheel, and the worm extends to the exterior of the shell.

[0017] Compared with the prior art, the technical scheme has the following beneficial technical effects:

[0018] 1. By arranging the concave lens, the convex lens and the reflecting mirror and the like components, the light emitted from the optical fiber joint first passes through the concave lens and then passes through the convex lens through the cooperation of the concave lens and the convex lens, the concave lens is arranged to make the light diverge, the diverged light becomes horizontal light through the refraction of the convex lens, the horizontal light is reflected by the reflecting mirror and then is emitted from the lens sheet, the light emitted from the lens sheet is collimated light, and thus the illumination intensity of the light spot at different positions is consistent.

[0019] 2. By arranging the lens moving frame and the transmission mechanism, the effect of changing the position of the concave lens is achieved, so that the concave lens moves along the direction of the moving groove together with the lens moving frame, the distance between the concave lens and the convex lens changes in this process, therefore the optical fiber illumination range diverged by the concave lens changes, and the effect of changing the size of the light spot is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a light spot size adjustment handle provided in an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0022] Figure 3 for Figure 2 A structural diagram from another perspective;

[0023] Figure 4 for Figure 3 A partial enlarged schematic diagram of area A in the middle;

[0024] Figure 5 This is a schematic structural diagram of the housing in an embodiment of the present utility model;

[0025] Figure 6 for Figure 5 A structural diagram from another perspective;

[0026] Figure 7 This is a schematic structural diagram of the lens moving frame in an embodiment of the present utility model;

[0027] Figure 8 for Figure 7 Schematic diagram of the explosion structure;

[0028] Figure 9 This is a schematic structural diagram of the inner cylinder in an embodiment of the present utility model;

[0029] Figure 10 This is a schematic structural diagram of the outer cylinder in an embodiment of the present utility model;

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Outer shell; 110. Half shell; 120. Fiber fixing groove; 130. Moving groove; 140. Lens slot; 150. Light transmission cavity; 160. Mounting groove; 170. Positioning groove; 180. Transmission groove; 2. Fiber connector; 3. Concave lens; 4. Inner cylinder; 41. Half inner cylinder; 42. External connecting groove; 43. Connecting blind hole; 44. Connecting column; 45. Hemispherical groove; 5. Outer cylinder; 51. Half outer cylinder; 52. Connecting ring plate; 53. Through hole; 54. Linkage block; 55. Threaded hole; 6. Ball; 7. Convex lens; 8. Reflector; 9. Lens piece; 10. Threaded screw; 11. Bearing; 12. Worm gear; 13. Worm. DETAILED DESCRIPTION

[0032] For the purposes of this application, a more complete description of the application will be presented in the following with reference to the relevant drawings. The drawings show embodiments of the application. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It should also be understood that the term "comprising" or "having" etc. specifies the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0035] Please refer to Figures 1-3 , Figure 5 and Figure 6 , the shell 1 and the optical fiber joint 2, the shell 1 includes two half shells 110, the two half shells 110 are connected to each other by screws, and the half shells 110 are provided with optical fiber fixing grooves 120, moving grooves 130, lens clamping grooves 140, light transmission cavities 150 and positioning grooves 170 in sequence and in communication with each other on opposite sides, the inner wall of the moving groove 130 is provided with a transmission groove 180, and the optical fiber joint 2 is arranged in the optical fiber fixing groove 120;

[0036] The lens moving frame is arranged in the moving groove 130 and extends into the transmission groove 180, the inner wall of the light transmission cavity 150 is provided with a mounting groove 160, the mounting groove 160 is provided with a reflecting mirror 8, the inner wall of the lens clamping groove 140 is provided with a convex lens 7, and the inner wall of the positioning groove 170 is provided with a lens sheet 9;

[0037] Based on the above, the half shells 110 are connected by screws, the optical fiber fixing grooves 120 serve to fix the optical fiber joint 2, the moving grooves 130 serve to guide the movement of the lens moving frame, the lens clamping grooves 140, the mounting grooves 160 and the positioning grooves 170 serve to fix the convex lens 7, the reflecting mirror 8 and the lens sheet 9 respectively, and the transmission groove 180 provides a moving space for the transmission mechanism.

[0038] As Figure 2 , Figure 3 ,Figures 7-10 As shown, the lens moving frame is arranged inside the housing 1 and includes a concave lens 3, an inner cylinder 4, an outer cylinder 5 and a ball 6;

[0039] The inner cylinder 4 includes a half inner cylinder 41. Two ends of opposite sides of the half inner cylinder 41 are respectively provided with a connecting blind hole 43 and a connecting column 44. The connecting column 44 can be inserted into the interior of the connecting blind hole 43. The outer surface of the half inner cylinder 41 is provided with an external connecting groove 42 and a hemispherical groove 45. The half inner cylinder 41 is arranged outside the concave lens 3.

[0040] The outer cylinder 5 includes a semi-outer cylinder 51, which is arranged outside the semi-inner cylinder 41. The semi-outer cylinder 51 and the semi-inner cylinder 41 are staggered. The inner surface of the semi-outer cylinder 51 is provided with a connecting ring plate 52 and a through hole 53. The connecting ring plate 52 extends into the interior of the outer connecting groove 42. A ball 6 is provided between the through hole 53 and the hemispherical groove 45. A linkage block 54 is provided on one side of the semi-outer cylinder 51. The surface of the linkage block 54 is provided with a threaded hole 55. The threaded hole 55 is adapted to the threaded screw 10.

[0041] Based on the above, the inner cylinder 4 plays a role in limiting the concave lens 3. The connecting column 44 and the connecting blind hole 43 cooperate with each other, so that the two half inner cylinders 41 can form a complete inner cylinder, and the hemispherical groove 45 and the through hole 53 cooperate with each other to provide a movable space for the ball 6, so that the ball 6 can be installed between the inner cylinder 4 and the outer cylinder 5. At this time, the ball 6 plays a role in auxiliary movement. The outer connecting groove 42 and the connecting ring plate 52 cooperate with each other, so that the outer cylinder 5 can limit the inner cylinder 4, and the outer cylinder 5 is restricted by the movable groove 130, thereby maintaining the assembled state. The threaded hole 55 cooperates with the transmission mechanism, so that the outer cylinder 5 can drive the inner cylinder 4 and the concave lens 3 to move together along the direction of the movable groove 130.

[0042] like Figures 2-4 As shown, the transmission mechanism is arranged inside the housing 1 through a bearing 11 and includes a threaded screw 10, a bearing 11, a worm wheel 12 and a worm 13, wherein:

[0043] a threaded screw 10, which is threadedly connected to the outer cylinder 5 and is connected to the worm 13 via the worm wheel 12; the threaded screw 10 is disposed inside the transmission groove 180 via a bearing 11; a worm wheel 12 is disposed at one end of the threaded screw 10; a worm 13 adapted to the worm wheel 12 is disposed inside the transmission groove 180; the worm 13 extends to the outside of the housing 1;

[0044] Based on the above, the worm 13 and the worm gear 12 cooperate to play a transmission role, that is, the worm 13 can drive the worm gear 12 to rotate when rotating, and the transmission mode has a self-locking function, the worm gear 12 can drive the threaded lead screw 10 to rotate when rotating, so that the outer cylinder 5 moves under the driving of the threaded lead screw 10.

[0045] As shown in Figure 2 and Figure 3 The convex lens 7, the mirror 8 and the lens sheet 9 are arranged inside the shell 1 and are in a triangular distribution, and the center line of the convex lens 7 is in line with the center line of the concave lens 3.

[0046] Based on the above, the optical fiber enters the device and is irradiated to the concave lens 3, the optical fiber after refraction of the concave lens 3 is in a divergent state, the divergent light is irradiated to the convex lens 7, and the parallel light state is presented after refraction of the convex lens 7, the parallel light is reflected by the mirror 8 and is emitted from the lens sheet 9, and the lens sheet 9 plays a role of protecting the handle.

[0047] In actual use, the optical fiber joint 2 is arranged inside the shell 1, the light is emitted from the optical fiber joint 2 into the handle, and is irradiated to the concave lens 3, the optical fiber after refraction of the concave lens 3 is in a divergent state, the divergent light is irradiated to the convex lens 7, and the parallel light state is presented after refraction of the convex lens 7, the parallel light is reflected by the mirror 8 and is emitted from the lens sheet 9.

[0048] The emitted light is collimated light, so the light intensity of the light spot projected by the handle is consistent at different positions, and the worm 13 is rotated to drive the worm gear 12 and the threaded lead screw 10 to rotate, the threaded lead screw 10 is rotated to drive the outer cylinder 5 to move along the direction of the moving groove 130 under the action of the threaded transmission, at this time, the distance between the concave lens 3 and the convex lens 7 changes, the size of the light spot after the light is diverged by the concave lens 3 changes, and the size of the light spot projected by the handle changes.

[0049] Compared with the conventional handle, the handle can change the size of the light spot by changing the distance between the concave lens 3 and the convex lens 7, is more convenient and fast to use, and the light spot projected by the handle is collimated light, so the light intensity of the light spot is consistent at different positions.

[0050] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A spot size adjustment handle, characterized by, The utility model provides a kind of optical fiber connector, including: Housing (1) and optical fiber joint (2); And Lens moving frame, which is arranged inside the housing (1), and includes concave lens (3), inner cylinder (4), outer cylinder (5) and ball (6); Transmission mechanism, which is arranged inside the housing (1) by bearing (11), and includes threaded lead screw (10), bearing (11), worm wheel (12) and worm (13), wherein, Threaded lead screw (10), which is threadedly connected with the outer cylinder (5), and is drivingly connected with the worm wheel (12) and the worm (13) by the worm wheel (12); Convex lens (7), mirror (8) and lens sheet (9) are all arranged inside the housing (1), and are in triangular distribution, the center line of the convex lens (7) is in line with the center line of the concave lens (3).

2. The spot size adjustment handle of claim 1, wherein, The housing (1) includes half shell (110), and the two half shells (110) are connected with each other by screws.

3. The spot size adjustment handle of claim 2, wherein, The half shell (110) is provided with optical fiber fixing groove (120), moving groove (130), lens clamping groove (140), light transmission cavity (150) and positioning groove (170) in sequence on opposite sides and communicate with each other, the inner wall of the moving groove (130) is provided with transmission groove (180), and the optical fiber joint (2) is arranged inside the optical fiber fixing groove (120).

4. The spot size adjustment handle of claim 3, wherein, The lens moving frame is arranged inside the moving groove (130) and extends to the inside of the transmission groove (180).

5. The spot size adjustment handle of claim 4, wherein, The inner wall of the light transmission cavity (150) is provided with mounting groove (160), and the mirror (8) is arranged inside the mounting groove (160).

6. The spot size adjustment handle of claim 5, wherein, The convex lens (7) is arranged inside the lens clamping groove (140), and the lens sheet (9) is arranged inside the positioning groove (170).

7. The spot size adjustment handle of claim 1, wherein, The inner cylinder (4) includes half inner cylinder (41), and the two ends of the opposite side of the half inner cylinder (41) are respectively provided with connecting blind hole (43) and connecting column (44), the connecting column (44) can be inserted into the inside of the connecting blind hole (43), the outer surface of the half inner cylinder (41) is provided with outer connecting groove (42) and hemispherical groove (45), and the half inner cylinder (41) is arranged outside the concave lens (3).

8. The spot size adjustment handle of claim 7, wherein, The outer cylinder (5) includes half outer cylinder (51), and the half outer cylinder (51) is arranged outside the half inner cylinder (41), the half outer cylinder (51) is distributed in dislocation with the half inner cylinder (41), the inner surface of the half outer cylinder (51) is provided with connecting ring plate (52) and through hole (53), the connecting ring plate (52) extends to the inside of the outer connecting groove (42), and the ball (6) is arranged between the through hole (53) and the hemispherical groove (45).

9. The spot size adjustment handle of claim 8, wherein, One side of the half outer cylinder (51) is provided with linkage block (54), the surface of the linkage block (54) is provided with threaded hole (55), and the threaded hole (55) is matched with the threaded lead screw (10).

10. The spot size adjustment handle of claim 3, wherein, The threaded screw rod (10) is arranged inside the transmission groove (180) through a bearing (11), one end of the threaded screw rod (10) is provided with a worm wheel (12), the inside of the transmission groove (180) is provided with a worm (13) matched with the worm wheel (12), and the worm (13) extends to the outside of the shell (1).

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