Hand mirror lens fixing device, laser treatment hand tool and laser treatment instrument

Abstract

The utility model discloses a kind of hand tool lens fixing device, laser treatment hand tool and laser therapeutic instrument, it is related to laser treatment equipment technical field, the hand tool lens fixing device includes lens barrel, lens fixing cylinder, positioning assembly and at least two first locking screw, lens fixing cylinder is located in the inner chamber of lens barrel, lens is equipped in lens fixing cylinder;Positioning assembly includes at least two positioning members, which are arranged along the circumference of the lens fixing cylinder, the positioning member connects the lens fixing cylinder and the lens barrel and is used to adjust the distance between the inner wall of the lens fixing cylinder and the lens barrel;The first locking screw is arranged in the lens barrel, and the end of the lens fixing cylinder away from the positioning assembly of the first locking screw abuts, the first locking screw is used to push the lens fixing cylinder rotates around the positioning member.The angle and position of the lens are adjusted separately, which greatly reduces the adjustment difficulty, thus reducing the lens adjustment time, and it is easier to adjust the expected effect.

Description

Technical Field

[0001] This utility model relates to the field of laser therapy equipment technology, and in particular to a handpiece lens fixing device, a laser therapy handpiece, and a laser therapy instrument. Background Technology

[0002] When using laser therapy devices for clinical treatment, laser energy needs to be precisely delivered to the diseased tissue through a handpiece to achieve the desired therapeutic effect. The core of laser therapy technology lies in the precise control of the laser energy output from the handpiece and the flexible adjustment of the spot shape.

[0003] The handpiece contains various optical lens elements to control the energy and adjust the beam spot of the laser output. Different lasers produce laser parameters that vary, such as divergence angle and beam size. These parameters are extremely sensitive to the lenses in the handpiece; even minor changes can cause the final output to deviate from the expected result. Typically, the handpiece is designed based on theoretical calculations. Therefore, during actual assembly, after connecting the handpiece to the laser, necessary adjustments to the internal lenses are required to achieve the ideal treatment outcome.

[0004] In related technologies, several set screws are used to adjust the position and angle of the lens. However, practice has shown that this adjustment method has obvious drawbacks. Adjusting with set screws is difficult to control. Adjusting the position of the lens changes the angle of the lens at the same time, making the adjustment difficult and time-consuming, and it may not achieve the desired effect. Utility Model Content

[0005] The main purpose of this invention is to provide a hand lens fixing device, a laser therapy hand tool, and a laser therapy instrument, which aims to reduce the difficulty of adjusting optical lenses and improve adjustment efficiency.

[0006] To achieve the above objectives, the present invention proposes a lens fixing device for hand tools, comprising a lens barrel, a lens fixing cylinder, a positioning component, and at least two first set screws. The lens fixing cylinder is disposed within the inner cavity of the lens barrel, and a lens is disposed within the lens fixing cylinder. The positioning component comprises at least two positioning members distributed circumferentially along the lens fixing cylinder. The positioning members connect the lens fixing cylinder and the lens barrel and are used to adjust the distance between the lens fixing cylinder and the inner wall of the lens barrel. The first set screw is disposed in the lens barrel and abuts against the end of the lens fixing cylinder away from the positioning component. The first set screw is used to push the lens fixing cylinder to rotate around one of the positioning members.

[0007] In one embodiment, the outer wall of the lens fixing cylinder is provided with a groove, and the bottom wall of the groove is arc-shaped; one end face of the positioning member is arc-shaped and abuts against the bottom wall of the groove.

[0008] In one embodiment, the groove extends circumferentially along the lens fixing cylinder and closes to form an annular groove.

[0009] In one embodiment, the positioning element is a ball screw, which includes a mounting sleeve, a spring, and a ball; the mounting sleeve is connected to the lens barrel, the spring is located inside the mounting sleeve, part of the ball is located inside the mounting sleeve, and the other part of the ball is exposed outside the mounting sleeve and abuts against the lens fixing sleeve, and both ends of the spring abut against the mounting sleeve and the ball, respectively.

[0010] In one embodiment, the positioning assembly further includes a positioning ring, which is sleeved on the outside of the lens fixing cylinder and connected to the lens cylinder, and the positioning element is disposed on the positioning ring.

[0011] In one embodiment, the outer diameter of the positioning ring is smaller than the inner diameter of the lens barrel, and the positioning assembly further includes at least two second set screws; the second set screws pass through the lens barrel and abut against the positioning ring, and the second set screws are distributed circumferentially along the positioning ring, and the second set screws are used to adjust the distance between the positioning ring and the inner wall of the lens barrel.

[0012] In one embodiment, the first set screw is offset from the positioning member so that each first set screw is located between two adjacent positioning members.

[0013] In one embodiment, the hand lens fixing device further includes a fixing ring, which is sleeved on the end of the lens fixing cylinder away from the positioning component, and the first set screw abuts against the outer wall of the fixing ring.

[0014] This utility model also proposes a laser therapy handpiece, which includes a gripping shell and a handpiece lens fixing device as described in any of the above embodiments, wherein the handpiece lens fixing device is disposed inside the gripping shell.

[0015] This utility model also proposes a laser therapy device, characterized in that the laser therapy device includes the laser therapy handpiece as described in the above embodiments.

[0016] The lens fixing device proposed in this utility model includes a lens barrel, a lens fixing cylinder, a positioning component, and at least two first set screws. The lens fixing cylinder is located inside the lens barrel, and a lens is disposed inside the lens fixing cylinder. The positioning component includes at least two positioning elements distributed circumferentially along the lens fixing cylinder. The positioning elements connect the lens fixing cylinder and the lens barrel and are used to adjust the distance between the lens fixing cylinder and the inner wall of the lens barrel. The first set screw is located in the lens barrel and abuts against the end of the lens fixing cylinder away from the positioning component. The first set screw is used to push the lens fixing cylinder to rotate around a positioning element. The distance between the lens fixing cylinder and the inner wall of the lens barrel can be adjusted by the positioning component, thereby adjusting the relative position of the lens central axis and the lens barrel central axis. The first set screw can push the lens fixing cylinder to rotate around a positioning element, thereby adjusting the angle between the lens central axis and the lens barrel central axis. In this way, the angle and position of the lens can be adjusted separately, greatly reducing the difficulty of adjustment, thus reducing the lens adjustment time and making it easier to achieve the desired effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A cross-sectional view along the axial direction of an embodiment of the hand lens fixing device provided by this utility model;

[0019] Figure 2 for Figure 1 Left view of the lens fixing device of the hand tool after being cut along the glass bead screw and the first set screw;

[0020] Figure 3 for Figure 1 A schematic diagram of the lens fixing device after adjusting the lens angle;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the middle lens fixing cylinder;

[0022] Figure 5 for Figure 3 A schematic diagram of the lens fixing device after adjusting the axial position of the lens.

[0023] Explanation of icon numbers:

[0024] 100. Handpiece lens fixing device;

[0025] 1. Lens tube; 1A. Central axis of the lens tube;

[0026] 2. Lens fixing cylinder; 21. Lens; 21A. Lens principal axis; 2a. Annular groove;

[0027] 3. Positioning assembly; 31. Ball screw; 311. Mounting sleeve; 312. Spring; 313. Ball bearing; 32. Positioning ring;

[0028] 4. First set screw;

[0029] 5. Fixing ring.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] This utility model proposes a hand lens fixing device 100.

[0035] Please see Figure 1, Figure 2 and Figure 3 In one embodiment of the present invention, the lens fixing device 100 includes a lens barrel 1, a lens fixing cylinder 2, a positioning component 3, and at least two first set screws 4. The lens fixing cylinder 2 is disposed in the inner cavity of the lens barrel 1, and a lens 21 is disposed inside the lens fixing cylinder 2. The positioning component 3 includes at least two positioning members distributed along the circumference of the lens fixing cylinder 2. The positioning members connect the lens fixing cylinder 2 and the lens barrel 1 and are used to adjust the distance between the lens fixing cylinder 2 and the inner wall of the lens barrel 1. The first set screws 4 are disposed in the lens barrel 1, and the first set screws 4 abut against the end of the lens fixing cylinder 2 away from the positioning component 3. The first set screws 4 are used to push the lens fixing cylinder 2 to rotate around a positioning member.

[0036] In this embodiment, the lens barrel 1 is the main structure of the hand-held lens fixing device 100. Its main function is to provide an installation space for the lens fixing cylinder 2 and to connect and cooperate with other components such as the laser. The lens barrel 1 can be made of metal materials, such as aluminum alloy, which has good mechanical strength and stability, and is lightweight, ensuring the structural reliability and portability of the device during use. The inner cavity of the lens barrel 1 is cylindrical.

[0037] The lens fixing cylinder 2 is located inside the lens barrel 1. Its main function is to fix the lens 21 and, through cooperation with the positioning component 3 and the first set screw 4, to adjust the position and angle of the lens 21. The lens fixing cylinder 2 can also be made of metal materials such as aluminum alloy.

[0038] The positioning assembly 3 includes at least two positioning elements distributed circumferentially along the lens fixing cylinder 2. The structure of the positioning elements can be varied. For example, the positioning element can be a threaded adjusting screw, which passes through and is screwed into the lens barrel 1, with its end abutting against the lens fixing cylinder 2. Rotating the adjusting screw changes the distance between the lens fixing cylinder 2 and the inner wall of the lens barrel 1, thereby adjusting the distance between the lens 21 and the lens barrel 1. This method offers high adjustment precision. Alternatively, the positioning element can be an elastic snap-fit ​​structure, such as a plastic elastic element or a metal spring. This elastic snap-fit ​​structure has multiple locking positions, passes through the lens fixing cylinder 2, and engages with the lens fixing cylinder 2 through a specific locking position. Elastic deformation allows switching between multiple locking positions, thus achieving positioning and adjustment of the lens fixing cylinder 2. This method offers fast adjustment speed. In this embodiment, the positioning element connects the lens fixing cylinder 2 and the lens barrel 1 and is used to adjust the distance between the inner walls of the lens fixing cylinder 2 and the lens barrel 1, thereby adjusting the relative position of the central axis of the lens 21 and the central axis of the lens barrel 1. Figure 5As shown, the intersection of the two different dashed lines represents the principal optical axis 21A of the lens and the central axis 1A of the lens barrel, respectively. The relative positions of the principal optical axis 21A and the central axis 1A of the lens barrel can be adjusted by adjusting the positioning elements at different positions. For example, before angle adjustment, the principal optical axis 21A of the lens can be made to coincide with the central axis 1A of the lens barrel, thus achieving centering of the lens 21. To ensure that the lens fixing cylinder 2 is subjected to uniform force so that the lens 21 remains stable after positioning, the number of positioning elements is at least two. For example, two positioning elements can be symmetrically distributed about the central axis 1A of the lens barrel to maintain force balance. Alternatively, three positioning elements can be used, arranged in a circular array around the central axis 1A of the lens barrel to maintain force balance. Furthermore, when four positioning elements are used, each pair forms a group, with the two positioning elements in the same group symmetrically arranged about the central axis 1A of the lens barrel to maintain force balance.

[0039] The first set screw 4 is disposed on the lens barrel 1, and abuts against the end of the lens retaining cylinder 2 furthest from the positioning component 3. The function of the first set screw 4 is to push the lens retaining cylinder 2 to rotate around a positioning component, thereby adjusting the angle between the central axis of the lens 21 and the central axis of the lens barrel 1. It should be noted that the size of the lens retaining cylinder 2 is smaller than the inner cavity of the lens barrel 1 so that the lens retaining cylinder 2 can move within a certain range, for example, translating to move closer to or away from the inner wall of the lens barrel 1, or rotating to move one end of the lens retaining cylinder 2 closer to or away from the inner wall of the lens barrel 1. Figure 3 As shown, since the positioning component connects the lens barrel 1 and the lens fixing cylinder 2, turning the first set screw 4 can push the lens fixing cylinder 2 to rotate around a certain positioning component, thereby adjusting the angle between the principal optical axis of the lens 21 and the central axis of the lens barrel 1. The structure and selection of the first set screw 4 can be adjusted according to actual needs. For example, the first set screw 4 can use a fine thread to improve the accuracy and sensitivity of the adjustment.

[0040] This embodiment achieves separate adjustment of the position and angle of the lens 21 by setting a positioning component 3 and a first set screw 4. The positioning component 3 can adjust the distance between the lens fixing cylinder 2 and the inner wall of the lens barrel 1, changing the relative position of the principal optical axis of the lens 21 and the central axis of the lens barrel 1; the first set screw 4 changes the angle between the principal optical axis of the lens 21 and the central axis of the lens barrel 1 by pushing the lens fixing cylinder 2 to rotate around a positioning component. This separate adjustment method makes the adjustment process more precise and flexible, and can effectively solve the problems of difficult, time-consuming and unsatisfactory adjustment in the prior art.

[0041] Further, please refer to Figure 3 and Figure 4 In one embodiment of this utility model, the outer wall of the lens fixing cylinder 2 is provided with a groove, the bottom wall of the groove is set in an arc surface, and one end face of the positioning member is set in an arc surface and abuts against the bottom wall of the groove.

[0042] In this embodiment, the outer wall of the lens fixing cylinder 2 is provided with a groove. The bottom wall of the groove is arc-shaped, and one end face of the positioning member is also arc-shaped, abutting against the bottom wall of the groove. The arc-shaped end face of the positioning member can be designed with an arc that matches the bottom wall of the groove. This arc-shaped design allows the groove to better match the arc-shaped end face of the positioning member, enabling the lens fixing cylinder 2 to move and rotate more smoothly during adjustment. That is, when the lens fixing cylinder 2 moves or rotates relative to the lens barrel 1, the end face of the positioning member can be confined within the groove to prevent large displacement. Especially during relative rotation, the arc-shaped end face of the positioning member rolls or slides relative to the arc-shaped bottom wall of the groove, and the end of the positioning member is always located within the groove. The size and shape of the groove can be designed according to actual needs to ensure a good fit with the positioning member. In addition, this arc-shaped end face design makes the contact between the positioning member and the lens fixing cylinder 2 more uniform, reduces local stress concentration, and improves the safety and durability of the structure. The arc-shaped end face of the positioning component adopts an arc design that matches the bottom wall of the groove. For example, the radius of curvature of the arc-shaped end face of the positioning component can be the same as or similar to the radius of curvature of the bottom wall of the groove to achieve a better fit.

[0043] Please see Figure 4 In one embodiment of this utility model, the groove extends circumferentially along the lens fixing cylinder 2 and closes to form an annular groove 2a.

[0044] It should be noted that in this application, the groove can be set as multiple, and each groove is set with a corresponding positioning member. However, in this embodiment, the groove adopts a whole annular groove 2a. The annular groove 2a extends along the circumference of the lens fixing cylinder 2. This annular groove 2a design allows the lens fixing cylinder 2 to rotate around the axial direction of the lens cylinder 1, improving the flexibility of lens 21 adjustment and making installation more convenient. There is no need to align each positioning member with a groove. Multiple positioning members can be inserted into an annular groove 2a at the same time, making assembly simple and convenient.

[0045] Further, please refer to Figures 1 to 3 In one embodiment of this utility model, the positioning component is a ball screw 31. The ball screw 31 includes a mounting sleeve 311, a spring 312, and a ball 313. The mounting sleeve 311 is connected to the lens barrel 1. The spring 312 is located inside the mounting sleeve 311. Part of the ball 313 is located inside the mounting sleeve 311, and the other part of the ball 313 is exposed outside the mounting sleeve 311 and abuts against the lens fixing sleeve 2. The two ends of the spring 312 abut against the mounting sleeve 311 and the ball 313 respectively.

[0046] In this embodiment, the positioning component is a ball screw 31, which includes a mounting sleeve 311, a spring 312, and a ball bearing 313. The mounting sleeve 311 is the mounting base for the ball screw 31 and is connected to the lens barrel 1. It can be fixed to the lens barrel 1 by means of threads, welding, or bonding. The spring 312 is located inside the mounting sleeve 311, providing elastic support so that the ball bearing 313 can elastically abut against the lens fixing sleeve 2. Part of the ball bearing 313 is located inside the mounting sleeve 311, and the other part is exposed outside the mounting sleeve 311, abutting against the outer wall of the lens fixing sleeve 2. This design allows the ball bearing 313 to compensate for positional changes in the lens mounting cylinder 2 under the action of the spring 312. For example, two ball bearing screws are symmetrically arranged about the central axis 1A of the lens barrel. The balls 313 of the two ball bearing screws respectively abut against both sides of the lens 21 mounting cylinder 311, and the springs 312 are both in a compressed state. If the position of the lens 21 is adjusted at this time, the mounting cylinders 311 of the two ball bearing screws are not symmetrical about the central axis 1A of the lens barrel due to installation or adjustment. One spring 312 is further compressed, and the other spring 312 rebounds to reduce the amount of compression. That is, because the spring 312 can automatically compensate for positional changes through its own deformation, the principal optical axis 21A of the lens coincides with the central axis 1A of the lens barrel. The above example describes the adjustment of the position of the lens 21. Even if the lens 21 moves radially along the lens barrel 1, the angle adjustment of the lens 21 can be performed afterward. Since the spring 312 can achieve centering through elastic automatic compensation, the angle adjustment of the lens 21 can be performed by simply rotating the first set screw 4. It is simple and easy to operate.

[0047] Further, please refer to Figures 1 to 3 In one embodiment of the present invention, the positioning component 3 further includes a positioning ring 32, which is sleeved on the outside of the lens fixing cylinder 2 and connected to the lens cylinder 1, and the positioning element is disposed on the positioning ring 32.

[0048] In this embodiment, the main function of the positioning ring 32 is to serve as a mounting platform for the positioning component and to connect with the lens barrel 1. The positioning ring 32 can be made of metal materials, such as aluminum alloy or stainless steel, which have good mechanical strength and stability, ensuring the reliability of the device during use. The inner diameter of the positioning ring 32 is larger than the outer diameter of the lens fixing cylinder 2 to ensure that the lens fixing cylinder 2 can rotate at a certain angle.

[0049] The connection between the positioning ring 32 and the lens barrel 1 can be achieved in various ways, such as threaded connection, snap-fit ​​connection or welding. For example, by controlling the tolerance between the positioning ring 32 and the lens barrel 1, the positioning ring 32 and the lens barrel 1 can be fitted with a clearance. Alternatively, the outer diameter of the positioning ring 32 can be set to be smaller than the inner diameter of the lens barrel 1, and the positioning ring 32 can be fixed by screws passing through the lens barrel 1. This design not only facilitates the installation and disassembly of the positioning component, but also makes the replacement of the positioning component more flexible and reduces maintenance costs.

[0050] In this embodiment, the positioning ring 32 serves as the mounting platform for the positioning component, allowing the positioning component and the lens fixing cylinder 2 to be assembled together and then placed into the lens barrel 1. This design not only facilitates assembly but also makes maintenance and repair easier, reducing maintenance costs and difficulties.

[0051] Further, please refer to Figures 1 to 3 In one embodiment of this utility model, the outer diameter of the positioning ring 32 is smaller than the inner diameter of the lens barrel 1. The positioning assembly 3 further includes at least two second set screws. The second set screws pass through the lens barrel 1 and abut against the positioning ring 32. The second set screws are distributed circumferentially along the positioning ring 32. The second set screws are used to adjust the distance between the positioning ring 32 and the inner wall of the lens barrel 1. It should be noted that the second set screws are similarly inserted into the lens barrel 1 as the first set screw 4. The second set screws are not shown in the accompanying drawings.

[0052] In this embodiment, the outer diameter of the positioning ring 32 is smaller than the inner diameter of the lens barrel 1. This design allows the positioning ring 32 to move freely within the lens barrel 1, providing space for the adjustment of the second set screw. The gap between the outer diameter of the positioning ring 32 and the inner diameter of the lens barrel 1 can be designed according to actual needs to ensure that the positioning ring 32 can move smoothly within the lens barrel 1, while avoiding inaccurate positioning due to excessive gap.

[0053] The second set screw passes through the lens barrel 1 and abuts against the positioning ring 32. There are at least two second set screws, distributed circumferentially along the positioning ring 32. This design allows the positioning ring 32 to move radially within the lens barrel 1, thereby adjusting the distance between the positioning ring 32 and the inner wall of the lens barrel 1. The structure and selection of the second set screw can be adjusted according to actual needs; for example, the second set screw can use a fine thread to improve the accuracy and sensitivity of the adjustment.

[0054] The second set screw passes through the lens barrel 1 and abuts against the positioning ring 32. By turning the second set screw, the positioning ring 32 can be moved radially along the lens barrel 1, thereby adjusting the distance between the positioning ring 32 and the inner wall of the lens barrel 1. This adjustment method is not only precise but also flexible, and can meet the adjustment requirements of different laser output parameters. For example, when it is necessary to adjust the relative position of the central axis of the lens 21 and the central axis of the lens barrel 1, the positioning ring 32 can be moved radially within the lens barrel 1 by turning the second set screw, thereby moving the lens fixing cylinder 2 and adjusting the position of the lens 21.

[0055] In this embodiment, the positioning element (such as the ball screw 31) and the second set screw work together to achieve dual adjustment of the lens 21 position. The positioning element provides initial positioning and adjustment functions through direct contact with the lens fixing cylinder 2; the second set screw further precisely adjusts the position of the lens fixing cylinder 2 by adjusting the position of the positioning ring 32. This dual adjustment mechanism makes the adjustment process more precise and flexible, effectively solving the problems of difficult, time-consuming, and unsatisfactory adjustment results in the prior art.

[0056] Further, please refer to Figure 2 In one embodiment of the present invention, the first set screw 4 and the second set screw are staggered so that each first set screw 4 is located between two adjacent second set screws.

[0057] In this embodiment, the first set screw 4 and the second set screw are staggered, with each first set screw 4 located between two adjacent second set screws.

[0058] When the first set screw 4 is adjusted, the lens retaining cylinder 2 can rotate about the line connecting the two ball screws 31. This design provides two supports, and the line connecting the two supports forms a rotation axis that is parallel to the radial direction of the lens barrel 1, around which the lens barrel 1 rotates. This design makes the lens retaining cylinder 2 more evenly stressed during adjustment, thereby improving the stability of the device, reducing local stress concentration, and improving the durability of the structure.

[0059] Further, please refer to Figure 3 In one embodiment of the present invention, the hand lens fixing device 100 further includes a fixing ring 5, which is sleeved on the end of the lens fixing cylinder 2 away from the positioning component 3, and the first set screw 4 abuts against the outer wall of the fixing ring 5.

[0060] In this embodiment, the main function of the retaining ring 5 is to protect the outer wall of the lens retaining cylinder 2 and prevent it from being worn during adjustment. The retaining ring 5 can be made of wear-resistant materials, such as stainless steel or hard plastic, which have good wear resistance and mechanical strength, effectively extending the service life of the device. The inner diameter of the retaining ring 5 matches the outer diameter of the lens retaining cylinder 2 to ensure that the retaining ring 5 can be tightly fitted onto the lens retaining cylinder 2. Furthermore, the retaining ring 5 can also be connected to the lens retaining cylinder 2 by means of bonding or welding to prevent the retaining ring 5 from loosening relative to the lens retaining cylinder 2 and affecting the adjustment accuracy.

[0061] This utility model also proposes a laser therapy handpiece, which includes a gripping shell and a handpiece lens fixing device 100 as described in any of the above embodiments, wherein the handpiece lens fixing device 100 is disposed inside the gripping shell.

[0062] Since this laser treatment handpiece adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. The grip shell is the main structure of the handpiece, providing a comfortable gripping area for the operator and also providing installation space for the handpiece lens fixing device 100. The grip shell is typically made of lightweight materials, such as aluminum alloy or engineering plastics. These materials not only have good mechanical strength but also reduce the overall weight of the handpiece, improving operational comfort. The internal structure of the grip shell is designed to accommodate the handpiece lens fixing device 100 while ensuring its stability during use. For example, the inner wall of the grip shell may have a mounting groove or fixing structure for fixing the handpiece lens fixing device 100. Furthermore, the grip shell may also have operation buttons or adjustment knobs for controlling the adjustment function of the handpiece lens fixing device 100.

[0063] This utility model also proposes a laser therapy device, which includes the laser therapy handpiece as described in the above embodiments.

[0064] Since this laser therapy device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here. The laser therapy device mainly includes a laser generator, a control unit, and a laser therapy handpiece. The laser generator is used to generate laser energy, the control unit is used to control the output parameters of the laser, and the laser therapy handpiece is used to accurately deliver the laser energy to the diseased tissue. The laser generator and control unit of the laser therapy device can adopt existing mature technologies. The laser therapy handpiece adopts the design of the above embodiments, including a grip shell and a handpiece lens fixing device 100. The handpiece lens fixing device 100 can be designed according to any one of the above embodiments, and will not be elaborated here. Through the design of the above embodiments, the laser therapy device of this utility model not only solves the problems of difficult adjustment, time-consuming operation, and difficulty in achieving ideal results in the prior art, but also further improves the accuracy and ease of operation of laser therapy, making the use of the laser therapy device more efficient and reliable.

[0065] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lens fixing device for hand tools, characterized in that, The handpiece lens fixing device includes: Lens tube (1); Lens fixing tube (2), the lens fixing tube (2) is located in the inner cavity of the lens tube (1), and a lens (21) is provided inside the lens fixing tube (2); Positioning component (3), the positioning component (3) includes at least two positioning members arranged circumferentially along the lens fixing cylinder (2), the positioning members connect the lens fixing cylinder (2) and the lens barrel (1) and are used to adjust the distance between the inner wall of the lens fixing cylinder (2) and the lens barrel (1); At least two first set screws (4) are provided through the lens barrel (1) and abut against the end of the lens fixing cylinder (2) away from the positioning component (3). The first set screws (4) are used to push the lens fixing cylinder (2) to rotate around a positioning component.

2. The hand lens fixing device as described in claim 1, characterized in that, The outer wall of the lens fixing cylinder (2) is provided with a groove, and the bottom wall of the groove is set with an arc surface; One end face of the positioning member is arc-shaped and abuts against the bottom wall of the groove.

3. The hand lens fixing device as described in claim 2, characterized in that, The groove extends circumferentially along the lens fixing cylinder (2) and closes to form an annular groove (2a).

4. The hand lens fixing device as described in claim 1, characterized in that, The positioning component is a ball screw (31), which includes a mounting sleeve (311), a spring (312), and a ball (313). The mounting cylinder (311) is connected to the lens barrel (1). The spring (312) is located inside the mounting cylinder (311). Part of the ball bearing (313) is located inside the mounting cylinder (311), and the other part of the ball bearing (313) is exposed outside the mounting cylinder (311) and abuts against the lens fixing cylinder (2). The two ends of the spring (312) abut against the mounting cylinder (311) and the ball bearing (313) respectively.

5. The hand lens fixing device as described in claim 4, characterized in that, The positioning component (3) further includes a positioning ring (32), which is sleeved on the outside of the lens fixing tube (2) and connected to the lens tube (1). The positioning element is located on the positioning ring (32).

6. The hand lens fixing device as described in claim 5, characterized in that, The outer diameter of the positioning ring (32) is smaller than the inner diameter of the lens barrel (1), and the positioning assembly (3) also includes at least two second set screws; The second set screw passes through the lens barrel (1) and abuts against the positioning ring (32). The second set screw is distributed along the circumference of the positioning ring (32). The second set screw is used to adjust the distance between the positioning ring (32) and the inner wall of the lens barrel (1).

7. The hand lens fixing device as described in any one of claims 1 to 6, characterized in that, The first set screw (4) is offset from the positioning member so that each first set screw (4) is located between two adjacent positioning members.

8. The hand lens fixing device as described in any one of claims 1 to 6, characterized in that, The hand lens fixing device also includes a fixing ring (5), which is sleeved on the end of the lens fixing cylinder (2) away from the positioning component (3), and the first set screw (4) abuts against the outer wall of the fixing ring (5).

9. A laser therapy handpiece, characterized in that, The laser treatment handpiece includes a gripping housing and a handpiece lens fixing device as described in any one of claims 1 to 8, wherein the handpiece lens fixing device is disposed within the gripping housing.

10. A laser therapy device, characterized in that, The laser therapy device includes the laser therapy handpiece as described in claim 9.

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