Shielding device and laser therapy apparatus

Abstract

The application discloses a shielding device and a laser treatment instrument. The shielding device is used for shielding or opening a fiber port, and comprises a sealing piece and a shielding piece. The sealing piece is arranged in the fiber port. The shielding piece is movably arranged relative to the fiber port, and has a shielding position and an opening position. When the shielding piece is in the shielding position, the shielding piece covers the fiber port, and the shielding piece is in sealing cooperation with the sealing piece to seal the fiber port. When the shielding piece is in the opening position, the shielding piece is located on one side of the fiber port, and the fiber port is exposed. The application has the beneficial effect of improving the protection effect on the fiber port.

Description

Technical Field

[0001] This application relates to the field of shielding device technology, specifically to shielding devices and laser therapy instruments. Background Technology

[0002] Some known fiber optic jacks require repeated plugging and unplugging operations. When the fiber optic jacks are not in use and are exposed to the elements, they are easily contaminated by foreign matter from the external environment. Improving the protection of fiber optic jacks is a pressing technical problem that needs to be solved. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a shielding device and laser therapy instrument to solve the technical problem that fiber optic ports are easily contaminated when not in use in the prior art.

[0004] To achieve the above-mentioned technical objectives, this application adopts the following technical solution: In a first aspect, this application provides a blocking device for blocking or opening an optical fiber optic connector, the blocking device comprising a sealing member and a blocking member. The sealing member is disposed on the optical fiber optic connector. The blocking member is movably disposed relative to the optical fiber optic connector, and the blocking member has a blocking position and an open position; when the blocking member is in the blocking position, the blocking member covers the optical fiber optic connector, and the blocking member and the sealing member are in a sealing fit to seal the optical fiber optic connector; when the blocking member is in the open position, the blocking member is located on one side of the optical fiber optic connector, exposing the optical fiber optic connector.

[0005] In some embodiments, the seal has a first sealing surface facing the shield; the shield has a second sealing surface facing the seal; when the shield is in the shielded position, the second sealing surface abuts against the first sealing surface.

[0006] In some embodiments, the shielding member further has a guide surface connected to the edge of the second sealing surface near one end of the seal, the distance between the guide surface and the first sealing surface gradually increases in the direction near the seal, and the guide surface is used to guide the second sealing surface to conform to the first sealing surface as the shielding member moves toward the shielding position.

[0007] In some embodiments, the seal is annular, extends axially toward the shielding member along the fiber optic connector, and seals the fiber optic connector circumferentially.

[0008] In some embodiments, the blocking device further includes a reset member connected to the blocking member, the reset member being used to apply a force to the blocking member to move it from the open position toward the blocking position.

[0009] In some embodiments, the shielding device further includes a mounting member disposed on a radial side of the fiber optic port, the shielding member being movably connected to the mounting member, one end of the reset member being connected to the mounting member, and the other end of the reset member being connected to the shielding member.

[0010] In some embodiments, the reset member includes an elastic member that is elastically supported between the mounting member and the shielding member.

[0011] In some embodiments, the blocking device further includes a guide member movably connected to the guide member, the guide member being used to guide the blocking member to move between the blocking position and the open position.

[0012] In some embodiments, the shielding device further includes a mounting member with a limiting hole. The shielding member includes a limiting portion and a shielding portion. The limiting portion extends movably into the limiting hole. One end of the shielding portion is connected to the limiting portion, and the other end extends toward the optical fiber connector. When the shielding member is in the shielding position, the limiting portion abuts against the hole surface of the limiting hole on the side near the optical fiber connector.

[0013] Secondly, this application also provides a laser therapy device, including a fiber optic connector, an optical fiber, and the aforementioned shielding device. The fiber optic connector defines the fiber optic port. The optical fiber is used to insert into the fiber optic port. The shielding device is used to shield or open the fiber optic port.

[0014] Compared with known technologies, the shielding device provided in this application, when the shielding component is in the shielding position, provides a sealing fit between the shielding component and the sealing component, which can significantly improve the sealing effect on the gap between the fiber optic connector and the external environment, greatly reduce the risk of foreign matter and dust entering the fiber optic connector through the gap between the shielding component and the fiber optic connector, significantly reduce the possibility of contamination of the fiber optic connector, and significantly improve the sealing and protection effect on the fiber optic connector. When the shielding component is in the open position, the fiber optic connector is exposed and can be plugged into the fiber optic connector. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the laser therapy device provided in the embodiments of this application.

[0016] Figure 2 This is a partial structural diagram of the laser therapy device provided in the embodiments of this application from another angle.

[0017] Figure 3 This is a partial structural schematic diagram of the laser therapy device provided in the embodiments of this application, wherein the shielding device opens the fiber optic port.

[0018] Figure 4 This is a partial structural schematic diagram of the laser therapy device provided in the embodiments of this application, wherein the shielding device shields the optical fiber port.

[0019] Figure 5 This is an exploded structural diagram of the shielding device provided in the embodiments of this application.

[0020] Figure 6 This is a partial structural diagram of the shielding device and fiber optic connector provided in the embodiments of this application, wherein the shielding device is in the open position.

[0021] Figure 7 This is a partial structural schematic diagram of the laser therapy device provided in the embodiments of this application, wherein the shielding device opens the optical fiber port and the optical fiber is plugged into the optical fiber port.

[0022] Explanation of reference numerals in the attached figures: 100. Shielding device; 10. Sealing element; 20. Shielding element; 21. Shielding plate; 22. Pushing part; 23. Limiting part; 24. Connecting part; 30. Mounting part; 31. First mounting bracket; 32. Second mounting bracket; 40. Reset part; 40a. Elastic element; 50. Guide part; 200. Laser therapy instrument; 201. Fiber optic connector; 202. Fiber optic cable; 203. Housing; 2031. Front wall; K1. Fiber optic connector; K2. Through hole; K3. Clearance hole; K4. Limiting hole; P1. First sealing surface; P2. Second sealing surface; P3. Guide surface; P4. Mounting surface; C. Contouring groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] Laser therapy devices and other equipment transmit laser beams via optical fibers. Optical fibers have a high energy density. When there are no contaminants on the fiber end face, the beam can propagate within the fiber through total internal reflection. However, when there are contaminants or debris on the fiber end face, these contaminants obstruct the beam's passage, and the energy continuously focuses at the fiber end face, causing the contaminants to burn and vaporize. This combustion generates high temperatures, burning the fiber containing the contaminants and further jeopardizing equipment operation. Some known devices involve multiple insertion and removal operations. If the fiber optic connector is not promptly sealed and protected when the fiber is removed, foreign objects and water droplets can easily contaminate the connector, posing a risk of contaminating the fiber end face upon subsequent insertion. Current technologies use screw caps or welts to shield the fiber optic connector; however, screw caps are easily forgotten during repeated insertions and removals, and welts are often ineffective. Therefore, current technologies suffer from inadequate protection of fiber optic connectors.

[0025] To address the technical problem of poor protection for known fiber optic connectors, this application provides a shielding device that can improve the protection effect of fiber optic connectors.

[0026] It should be noted that the shielding device described in this application is used in, but not limited to, laser therapy devices. For ease of explanation, this application only uses the application of the shielding device in a laser therapy device as an example. The principle of the shielding device in other types of devices is essentially the same as that in laser therapy devices, and will not be elaborated here. For example, the shielding device can also be applied to the interface of electronic devices such as mobile phones and computers.

[0027] Please see Figure 1 and Figure 2 , Figure 1 This is a partial structural schematic diagram of a laser therapy device 200 in one embodiment of this application. Figure 2 This is a partial structural diagram of a laser therapy device 200 provided in one embodiment of this application from another angle.

[0028] The laser therapy device 200 includes an optical fiber connector 201, an optical fiber 202, and a shielding device 100. The optical fiber connector 201 has an optical fiber port K1. The shielding device 100 is used to shield or open the optical fiber port K1. When the shielding device 100 opens the optical fiber port K1, the optical fiber 202 can be inserted into the optical fiber port K1, and the optical fiber 202 can conduct laser light to enable the laser therapy device 200 to operate. When the laser therapy device 200 stops operating, the shielding device 100 closes the optical fiber port K1 to protect it. Optionally, the laser therapy device 200 also includes a housing 203. The optical fiber connector 201 and the shielding device 100 are both installed in the housing 203.

[0029] Specifically, the housing 203 includes a front wall 2031. The fiber optic connector 201 and the shielding device 100 are both installed on the inner side of the front wall 2031. This allows the fiber optic connector 201 and the shielding device 100 to be reliably housed inside the housing 203, providing further dust protection and aesthetic appeal. The front wall 2031 has a clearance hole K3. The clearance hole K3 and the fiber optic connector K1 are spaced apart along the axial direction of the fiber optic connector K1. Thus, when the shielding device 100 opens the fiber optic connector K1, the fiber optic cable 202 can pass through the clearance hole K3 and be inserted into the fiber optic connector K1. In other embodiments, the shielding device 100 can also be installed on the outer side of the front wall 2031.

[0030] Further reading Figure 3 and Figure 4 , Figure 3 This is a partial structural diagram of a laser therapy device 200 provided in an embodiment of this application, wherein the shielding device 100 opens the fiber optic port K1. Figure 4 This is a partial structural diagram of a laser therapy device 200 provided in an embodiment of this application, wherein a blocking device 100 blocks the fiber optic connector K1. The blocking device 100 includes a sealing member 10 and a blocking member 20. The sealing member 10 is disposed at the fiber optic connector K1. The blocking member 20 is movably disposed relative to the fiber optic connector K1. The blocking member 20 has a blocking position and an open position. When the blocking member 20 is in the blocking position, the blocking member 20 covers the fiber optic connector K1, and the blocking member 20 and the sealing member 10 are in a sealing fit to seal the fiber optic connector K1. When the blocking member 20 is in the open position, the blocking member 20 is located on one side of the fiber optic connector K1, exposing the fiber optic connector K1.

[0031] According to the shielding device 100 of this application, when the shielding member 20 is in the shielding position, the shielding member 20 and the sealing member 10 are in a sealed fit, which can significantly improve the sealing effect on the gap between the fiber optic connector K1 and the external environment, significantly reduce the risk of dust and other foreign objects entering the fiber optic connector K1 through the gap between the shielding member 20 and the fiber optic connector K1, significantly reduce the possibility of the fiber optic connector K1 being contaminated, and significantly improve the sealing and protection effect on the fiber optic connector K1. When the shielding member 20 is in the open position, the fiber optic connector K1 is exposed and can be plugged into the fiber optic cable 202.

[0032] It is understood that in this embodiment, the sealing element 10 can be fixedly connected to the side of the shielding element 20 facing the fiber optic connector K1, or the sealing element 10 can be directly installed at the fiber optic connector K1 of the fiber optic connector 201. The specific installation position of the sealing element 10 can be adjusted according to the actual sealing requirements, and this embodiment does not impose specific limitations on it.

[0033] In one embodiment, please refer to Figure 5The seal 10 has a first sealing surface P1 facing the shield 20. The shield 20 has a second sealing surface P2 facing the seal 10. When the shield 20 is in the shielding position, the second sealing surface P2 is in contact with the first sealing surface P1.

[0034] Thus, when the first sealing surface P1 is in sealing contact with the second sealing surface P2, the second sealing surface P2 can also cover the fiber optic connector K1, thereby providing a shielding effect for the fiber optic connector K1. In this way, the second sealing surface P2 can achieve both sealing and shielding effects, further improving the protective effect of the shielding component 20 on the fiber optic connector K1.

[0035] Obviously, when the sealing member 10 is fixed to the shielding member 20, and the shielding member 20 is in the shielding position, the sealing member 10 and the fiber optic connector 201 can be sealed and fitted together.

[0036] In one embodiment, see Figure 5 and Figure 6 The shielding member 20 also has a guide surface P3. The guide surface P3 connects to the edge of the second sealing surface P2 near the end of the seal 10. The distance between the guide surface P3 and the first sealing surface P1 gradually increases in the direction approaching the seal 10. The guide surface P3 guides the second sealing surface P2 to adhere to the first sealing surface P1 as the shielding member 20 moves towards the shielding position. Thus, as the shielding member 20 moves towards the shielding position, the guide surface P3 ensures that the second sealing surface P2 adheres to the first sealing surface P1, preventing the movement of the shielding member 20 from being limited by the seal 10.

[0037] Specifically, the guiding surface P3 can be constructed as a flat surface or a curved surface.

[0038] Optionally, see Figure 6 The fiber optic connector 201 has a mounting surface P4 facing the shielding member 20. A sealing member 10 is disposed on the mounting surface P4. The sealing member 10 can be fixedly connected to the fiber optic connector 201 by fasteners such as bolts, or it can be directly bonded to the mounting surface P4. In other embodiments, one end of the sealing member 10 can also fit into the fiber optic socket K1. There are various ways to connect the sealing member 10 and the fiber optic connector 201, and this embodiment does not specifically limit them.

[0039] Optionally, when the shielding member 20 is in the open position, along the axial direction of the fiber optic connector K1, the second sealing surface P2 is located between the mounting surface P4 and the first sealing surface P1. Thus, after the shielding member 20 moves to the shielding position, the second sealing surface P2 can remain against the first sealing surface P1 under the constraint of the sealing member 10, ensuring a reliable seal between the shielding member 20 and the sealing member 10.

[0040] In this embodiment, the sealing element 10 can be made of a flexible material. Thus, during the process of the blocking element 20 entering the blocking position, the blocking element 20 first causes the sealing element 10 to deform, and then presses against the sealing element 10. Under the action of its own elastic deformation, the sealing element 10 remains against the blocking element 20, thereby achieving a reliable sealing fit with the blocking element 20.

[0041] In one embodiment, please refer to Figure 5 The sealing element 10 is annular. The sealing element 10 extends towards the shielding element 20 along the axial direction of the fiber optic connector K1 and seals the fiber optic connector K1 circumferentially.

[0042] Thus, along the circumference of the fiber optic connector K1, the gap between the shield 20 and the fiber optic connector 201 can be completely sealed by the seal 10, thereby further ensuring the sealing and protection function.

[0043] In other embodiments, the seal 10 can also be constructed in various shapes such as a superior arc shape or a inferior arc shape. Alternatively, there can be multiple seals 10, which are distributed at intervals along the circumference of the fiber optic connector K1. The specific number and shape of the seals 10 can be adjusted according to actual needs.

[0044] Specifically, see Figure 5 The sealing element 10 has a through hole K2. When the optical fiber 202 needs to be inserted into the optical fiber socket K1, the optical fiber 202 passes through the through hole K2 and then connects to the optical fiber socket K1. The optical fiber 202 and the through hole K2 are sealed together. In this way, the sealing element 10 can also provide sealing protection for the optical fiber socket K1 when the optical fiber 202 is connected to the optical fiber socket K1.

[0045] In this embodiment, see Figure 5 The blocking device 100 also includes a reset member 40. The reset member 40 is connected to the blocking member 20 and applies a force to the blocking member 20, causing it to move from the open position towards the blocked position. After the optical fiber 202 is removed from the optical fiber socket K1, the reset member 40 automatically moves the blocking member 20 towards the blocked position, thus automatically closing the optical fiber socket K1. This significantly reduces the possibility of operators forgetting to close the optical fiber socket K1 during repeated insertions and removals of the optical fiber 202, ensuring that the optical fiber socket K1 remains reliably clean after multiple insertions and removals.

[0046] In this embodiment, see Figure 5 The shielding device 100 also includes a mounting member 30. The mounting member 30 is located on the radial side of the fiber optic port K1. The shielding member 20 is movably connected to the mounting member 30. One end of the reset member 40 is connected to the mounting member 30, and the other end of the reset member 40 is connected to the shielding member 20.

[0047] Specifically, the mounting component 30 is located on the inner side of the front wall 2031 and is fixedly connected to the front wall 2031.

[0048] In this embodiment, see Figure 3 and Figure 4 The mounting component 30 has a limiting hole K4. The blocking component 20 includes a limiting part 23 and a blocking plate 21. The limiting part 23 extends movably into the limiting hole K4, and one end of the blocking plate 21 is connected to the limiting part 23, while the other end of the blocking plate 21 extends toward the fiber optic connector K1. When the blocking component 20 is in the blocking position, the limiting part 23 abuts against the hole surface of the limiting hole K4 on the side closest to the fiber optic connector K1. In this way, the hole surface of the limiting hole K4 can abut against the limiting part 23 to limit the extreme position of the blocking component 20 under the action of the reset component 40, thereby ensuring that the blocking component 20 is stably and reliably maintained in the blocking position, ensuring the blocking reliability of the blocking component 20, and further ensuring a reliable sealing fit between the blocking component 20 and the sealing component 10.

[0049] Optionally, the blocking member 20 is movably disposed on the mounting member 30 along the radial direction of the fiber optic connector K1. In this way, the movement of the blocking member 20 is relatively simple, and it is easy for the reset member 40 to drive the blocking member 20 to move between the blocked position and the open position.

[0050] In other embodiments, the shielding member 20 may also be rotatably connected to the mounting member 30. Therefore, there are various ways in which the shielding member 20 and the mounting member 30 can be connected, and this embodiment does not specifically limit them.

[0051] In some specific embodiments, see Figure 3 The mounting component 30 includes a first mounting bracket 31 and a second mounting bracket 32. The first mounting bracket 31 and the second mounting bracket 32 ​​are radially spaced along the fiber optic connector K1, and the second mounting bracket 32 ​​is located on the side of the first mounting bracket 31 facing away from the seal 10. A limiting hole K4 is defined between the first mounting bracket 31 and the second mounting bracket 32. When the shielding member 20 is in the shielding position, the limiting part 23 abuts against the first mounting bracket 31.

[0052] In this embodiment, see Figure 4 and Figure 5 The reset member 40 includes an elastic member 40a. The elastic member 40a is elastically supported between the mounting member 30 and the blocking member 20. When the blocking member 20 is held in the open position under external force, the elastic member 40a is in an elastic deformation state. After the external force on the blocking member 20 is removed, the elastic force of the elastic member 40a pushes the blocking member 20 towards the blocked position, thereby automatically blocking the fiber optic connector K1.

[0053] Specifically, the elastic element 40a is constructed as an elastic column or a spring, with its two ends abutting against the second mounting bracket 32 ​​and the limiting part 23, respectively. In other embodiments, the elastic element 40a can also be constructed as a tension spring. The two ends of the tension spring are connected to the first mounting bracket 31 and the limiting part 23, respectively.

[0054] In other embodiments, the reset member 40 may also be configured as a motor to achieve automated control.

[0055] In this embodiment, see Figure 5 The blocking device 100 also includes a guide member 50. The guide member 50 is connected to the mounting member 30, and the blocking member 20 is movably connected to the guide member 50. The guide member 50 guides the movement of the blocking member 20 between the blocked position and the open position. In this way, the guide member 50 can guide the accuracy of the movement direction of the blocking member 20, thereby ensuring that the reset member 40 drives the blocking member 20 to move to the accurate blocking position.

[0056] The guide member 50 can be specifically constructed as a guide post. The two ends of the guide post are respectively connected to the first mounting bracket 31 and the second mounting bracket 32, and the guide post extends radially along the fiber optic connector K1. A limiting part 23 is sleeved on the guide post. The limiting part 23 can be constructed as a linear bearing. The guide post and the linear bearing are in a transmission engagement to reduce the frictional resistance during the movement of the shielding member 20. An elastic member 40a is sleeved on the guide post. In other embodiments, the guide member 50 can also be constructed as a guide rail, with a slider connected to the limiting part 23, and the slider slidingly engaging with the guide rail.

[0057] In this embodiment, see Figure 5 The shielding member 20 also includes a connecting portion 24. One end of the shielding plate 21 is connected to the limiting portion 23 via the connecting portion 24. The other end of the shielding plate 21 extends relative to the limiting portion 23 and is used to cover the fiber optic connector K1 and to seal against the sealing member 10.

[0058] Optionally, there are multiple limiting parts 23 and multiple guide members 50. The number of limiting parts 23 is the same as the number of guide members 50. Each limiting part 23 cooperates with a corresponding guide member 50. The multiple limiting parts 23 are connected to the baffle plate 21 through connecting parts 24. In this way, the multiple guide members 50 and the multiple limiting parts 23 can further constrain the degree of freedom of the baffle plate 21, so that the baffle plate 21 has only one degree of freedom of movement, thereby further improving the movement reliability of the baffle plate 21.

[0059] In this embodiment, see Figure 3 and Figure 4The shielding member 20 also includes a pushing part 22. The pushing part 22 is connected to the side of the shielding plate 21 opposite to the sealing member 10. The pushing part 22 is used to overcome the force of the resetting member 40 under the action of external force and drive the shielding member 20 to the open position. In this way, the pushing part 22 can be easily operated by the operator.

[0060] Specifically, see Figure 1 The pusher 22 extends from the clearance hole K3, thereby facilitating the operator to operate the shield 20 from the outside of the housing 203.

[0061] In some specific embodiments, see Figure 7 The shielding member 20 has a contoured groove C at one end facing the sealing member 10. The contoured groove C is contoured to the side of the optical fiber 202. Thus, after the optical fiber 202 is inserted into the optical fiber socket K1, and the operator releases the shielding member 20, the elastic member 40a moves the shielding member 20 toward the shielding position, causing the optical fiber 202 to engage within the contoured groove C. This design, while utilizing the elastic member 40a, prevents the shielding member 20 from damaging the optical fiber 202 during operation, improving the operational reliability of the laser therapy device 200.

[0062] In other embodiments, the blocking device 100 may also be provided with a snap-fit ​​structure to restrict the blocking member 20 to the open position.

[0063] To better understand this application, the following is combined with... Figures 1 to 6 The technical solution of this application is described in detail.

[0064] During the operation of the laser therapy device 200, the operator moves the pusher 22 to switch the blocking member 20 to the open position, exposing the sealing member 10 and the fiber optic connector K1 through the clearance hole K3. The fiber optic cable 202 is then passed through the clearance hole K3 and inserted into the fiber optic connector K1. The fiber optic cable 202 and the fiber optic connector 201 can be connected via threaded connection or snap-fit ​​connection to ensure reliable insertion of the fiber optic cable 202. At this time, the blocking member 20 moves towards the blocking position under the action of the reset member 40 and abuts against the fiber optic cable 202. The contoured groove C cooperates with the fiber optic cable 202.

[0065] When the laser therapy device 200 is paused, the operator pulls the optical fiber 202 out of the optical fiber socket K1. The optical fiber 202 no longer restricts the blocking member 20, and the blocking member 20 moves to the blocking position under the force of the reset member 40, and seals with the sealing member 10, thereby achieving the blocking and reliable sealing of the optical fiber socket K1.

[0066] Therefore, during the repeated insertion and removal of optical fiber 202, each time optical fiber 202 is pulled out of optical fiber connector K1, the blocking device 100 can automatically block optical fiber connector K1, ensuring the protection and cleanliness of optical fiber connector K1.

[0067] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.

Claims

1. A blocking device for blocking or opening an optical fiber optic port, characterized in that, The shielding device includes: A sealing element, the sealing element being disposed at the fiber optic connector; A shielding component is movably disposed relative to the fiber optic connector. The shielding component has a shielding position and an open position. When the shielding component is in the shielding position, it covers the fiber optic connector and is sealed in conjunction with the sealing component to seal the fiber optic connector. When the shielding component is in the open position, it is located on one side of the fiber optic connector and exposes the fiber optic connector.

2. The shielding device according to claim 1, characterized in that, The seal has a first sealing surface facing the shield; the shield has a second sealing surface facing the seal; when the shield is in the shielding position, the second sealing surface abuts the first sealing surface.

3. The shielding device according to claim 2, characterized in that, The shielding member also has a guide surface, which is connected to the edge of the second sealing surface near one end of the sealing member. The distance between the guide surface and the first sealing surface gradually increases in the direction close to the sealing member. The guide surface is used to guide the second sealing surface to fit against the first sealing surface as the shielding member moves toward the shielding position.

4. The shielding device according to claim 1, characterized in that, The sealing element is annular, extends axially toward the shielding element along the fiber optic connector, and seals the fiber optic connector circumferentially.

5. The shielding device according to claim 1, characterized in that, The blocking device further includes a reset member connected to the blocking member, and the reset member is used to apply a force to the blocking member to move it from the open position toward the blocking position.

6. The shielding device according to claim 5, characterized in that, The shielding device further includes a mounting component, which is located on the radial side of the fiber optic port. The shielding component is movably connected to the mounting component. One end of the reset component is connected to the mounting component, and the other end of the reset component is connected to the shielding component.

7. The shielding device according to claim 6, characterized in that, The reset component includes an elastic element, which is elastically supported between the mounting component and the shielding component.

8. The shielding device according to claim 5, characterized in that, The blocking device further includes a guide member, which is movably connected to the guide member and is used to guide the blocking member to move between the blocking position and the open position.

9. The shielding device according to claim 1, characterized in that, The shielding device also includes a mounting component with a limiting hole. The shielding component includes a limiting part and a shielding part. The limiting part extends movably into the limiting hole. One end of the shielding part is connected to the limiting part, and the other end extends toward the optical fiber port. When the shielding member is in the shielding position, the limiting part abuts against the hole surface of the limiting hole on the side near the optical fiber connector.

10. A laser therapy device, characterized in that, include: Fiber optic connector, wherein the fiber optic connector defines the fiber optic port; Optical fiber, used to insert into an optical fiber connector; The shielding device as described in any one of claims 1 to 9, wherein the shielding device is used to shield or open the optical fiber port.

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