Laser pen head structure and laser pen

By incorporating a light-shielding element and an elastic flap at the opening of the laser pointer's mounting tube, the safety hazards during laser pointer tip replacement are resolved. This achieves the effect of blocking the laser during disassembly while allowing the laser to be emitted during installation, thus improving the safety and ease of use of the laser pointer.

CN224341952UActive Publication Date: 2026-06-09NINGBO DELI TOOLS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DELI TOOLS CO LTD
Filing Date
2025-05-26
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

There is a safety hazard when replacing the tip of existing laser pointers, as the laser beam may directly shine into the user's eyes and cause damage.

Method used

A light-shielding component is installed at the opening of the laser pointer's mounting tube. The light-shielding component automatically blocks and opens via an elastic flap, ensuring that the laser is blocked when the pointer is removed, but allowing the laser to be emitted during installation.

Benefits of technology

It effectively prevents the laser from shining directly into the eyes when the laser pointer tip is disassembled, thus improving the safety of the laser pointer. It is simple to operate and easy to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a kind of laser pen head structure and laser pen, it is related to laser pen technical field.The utility model discloses the laser pen head structure of laser pen includes installation cylinder and pen head.Laser transmitter is installed in installation cylinder bottom.The end of installation cylinder away from laser transmitter is provided with opening, and light shielding piece is provided at opening.Pen head is detachably connected with installation cylinder.Light barrel is arranged in pen head.Light hole, which is in communication with light barrel, is arranged on pen head.When pen head is installed on installation cylinder, light barrel opens light shielding piece to make laser transmitter and light barrel correspondingly arranged;When pen head is detached from installation cylinder, light shielding piece blocks laser.The utility model can shield laser after pen head is detached, avoid laser directly emitting to cause damage to human eye, open light shielding piece when installing pen head to realize laser emission, simple operation, convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of laser pen technology, and more specifically, to a laser pen tip structure and a laser pen. Background Technology

[0002] Laser pointers are a common presentation tool widely used in education, business presentations, and entertainment. Their core component is a built-in laser emitter that uses a laser beam to indicate or display specific content. To meet the needs of different scenarios, laser pointers are typically designed with replaceable tips. By changing different tips, different colors, shapes, or intensities of laser light can be emitted, thus achieving diverse presentation effects.

[0003] However, the process of replacing the tip of a laser pointer in the current technology poses certain safety hazards. Because the laser beam emitted by the laser pointer has a high energy density, improper operation during tip replacement could cause the laser beam to directly shine into the user's eyes, causing damage. Utility Model Content

[0004] The purpose of this invention is to provide a laser pointer tip structure and a laser pointer that can block the laser when the tip is removed, preventing the laser from shining directly into the eyes after the tip is removed, thus improving the safety of the laser pointer.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a laser pointer tip structure, comprising:

[0007] The mounting cylinder has a laser emitter installed inside it. An opening is provided at the end of the mounting cylinder away from the laser emitter, and a light-shielding element is provided at the opening.

[0008] The pen tip is detachably connected to the mounting cylinder. A light tube is provided inside the pen tip, and a light emission hole communicating with the light tube is provided on the pen tip. When the pen tip is installed on the mounting cylinder, the light tube opens the light shield so that the laser emitter is correspondingly positioned inside the light tube. When the pen tip is removed from the mounting cylinder, the light shield blocks the laser.

[0009] In an optional embodiment, the light-shielding element includes a plurality of elastic valves, which are installed at the opening of the mounting cylinder. One end of each elastic valve is installed on the side wall of the mounting cylinder, and the other end of each elastic valve is positioned towards the axis of the mounting cylinder. When the pen tip is mounted on the mounting cylinder, the light tube abuts against the elastic valves to deform them toward the laser emitter. When the pen tip is removed from the mounting cylinder, the elastic valves spring up to allow the plurality of elastic valves to contact each other and close the opening.

[0010] In an optional embodiment, a gap is provided between the elastic valves.

[0011] In an optional embodiment, the light-shielding member further includes a connecting portion, which is annular, with a plurality of elastic valves connected to the inner side of the connecting portion and extending toward the center of the connecting portion, the connecting portion being disposed on the side wall of the mounting cylinder.

[0012] In an optional embodiment, the light-shielding member is detachably connected to the mounting cylinder.

[0013] In an optional embodiment, the pen tip includes a pen tip body and a cylindrical portion connected to each other. The pen tip body has the light emission hole, and the light tube is connected to the inner side of the pen tip body. The light tube extends into the cylindrical portion, and the cylindrical portion is sleeved on the outer side of the mounting cylinder and detachably connected to the mounting cylinder.

[0014] In an optional embodiment, the end of the light tube furthest from the light outlet is located inside the tube portion.

[0015] In an optional embodiment, the diameter of the optical tube is greater than or equal to the diameter of the laser head of the laser emitter.

[0016] In an optional embodiment, the light-emitting aperture is further provided with a patterned transparent element.

[0017] Secondly, this utility model provides a laser pointer, including the laser pointer tip structure described in any of the foregoing embodiments.

[0018] The beneficial effects of the laser pen tip structure and laser pen provided by this embodiment of the invention include:

[0019] The laser pointer of this invention comprises a mounting cylinder and a pointer tip. A laser emitter is mounted at the bottom of the mounting cylinder. An opening is provided at the end of the mounting cylinder away from the laser emitter, and a light-shielding component is provided at the opening. The pointer tip is detachably connected to the mounting cylinder. A light tube is provided inside the pointer tip. A light-emitting hole communicating with the light tube is provided on the pointer tip. When the pointer tip is mounted on the mounting cylinder, the light tube opens the light-shielding component to align the laser emitter with the light tube; when the pointer tip is removed from the mounting cylinder, the light-shielding component blocks the laser. This invention, by providing a light-shielding component at the opening of the mounting cylinder, prevents the light source at the bottom from emitting from the mounting cylinder when the pointer tip is removed, thus preventing the laser from shining directly into the eyes and improving the safety of the laser pointer. By using the light tube and light-shielding component on the pointer tip in conjunction, when the pointer tip is mounted on the mounting cylinder, the light tube can open the light-shielding component, allowing the laser to enter the light tube and emit from the light-emitting hole, making it convenient to use. This invention allows the laser to be blocked after the pen tip is removed, preventing direct laser emission and damage to the eyes. When the pen tip is installed, opening the light-blocking component allows the laser to be emitted again. It is simple to operate and convenient to use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the laser pointer provided in this embodiment;

[0022] Figure 2 This is a schematic diagram of the laser pointer tip structure provided in this embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of the light-shielding component provided in this embodiment.

[0024] Icons: 1000-Laser pointer; 100-Laser pointer tip structure; 10-Mounting cylinder; 11-Laser head; 12-Light shield; 121-Connecting part; 122-Elastic valve; 13-Opening; 20-Pen tip; 21-Light tube; 22-Light outlet; 23-Pen tip body; 24-Cylinder part; 200-Pen holder; 201-Laser switch. Detailed Implementation

[0025] In order to meet the needs of different scenarios, the laser pointer 1000 in the prior art is usually designed with a detachable and replaceable pen tip 20. By replacing different pen tips 20, lasers of different colors and shapes can be emitted. However, if the pen tip 20 is not removed properly, the laser may directly shine into the user's eyes and cause damage to the user's eyes.

[0026] To address the aforementioned issues, this utility model provides a laser pointer tip structure 100 that can shield the laser source when the pointer tip 20 is detached, preventing accidental laser exposure to the eyes, while still enabling laser emission when the pointer tip 20 is installed. This simplifies operation and improves the safety of the laser pointer 1000.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0033] The following describes in detail the overall structure, working principle, and technical effects of the laser pen tip structure 100 and laser pen 1000 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0034] Please refer to Figure 1 and Figure 2 The laser pen tip structure 100 provided by this utility model is applied to a laser pen 1000. Specifically, the laser pen tip structure 100 is disposed at the end of the laser pen 1000 and is used to emit laser light at the end of the laser pen 1000.

[0035] In this embodiment, the laser pointer 1000 includes a pen holder 200. A battery and a laser emitter are installed inside the pen holder 200. A laser pointer tip structure 100 is located at the end of the pen holder 200. Specifically, a laser switch 201 is provided on the pen holder 200 to facilitate the operator in turning the laser on or off.

[0036] In this embodiment, the laser pointer structure 100 includes a mounting cylinder 10 and a pointer 20. A laser emitter is installed inside the mounting cylinder 10. An opening 13 is provided at the end of the mounting cylinder 10 away from the laser emitter, and a light-shielding member 12 is provided at the opening 13. The pointer 20 is detachably connected to the mounting cylinder 10. A light tube 21 is provided inside the pointer 20. A light-emitting hole 22 communicating with the light tube 21 is provided on the pointer 20. When the pointer 20 is installed on the mounting cylinder 10, the light tube 21 opens the light-shielding member 12 so that the laser emitter is correspondingly positioned inside the light tube 21; when the pointer 20 is removed from the mounting cylinder 10, the light-shielding member 12 blocks the laser.

[0037] Understandably, in this embodiment, the mounting cylinder 10 is fixed to the end of the pen holder 200. The mounting cylinder 10 is used to mount the pen tip 20, and a cavity is provided inside the mounting cylinder 10. During installation, the pen tip 20 is sleeved on the mounting cylinder 10. The laser head 11 of the laser emitter is disposed at the bottom of the mounting cylinder 10. The laser head 11 is used to emit laser light, which is emitted from the light outlet 22 of the pen tip 20.

[0038] Specifically, in this embodiment, the pen holder 200 is a cylindrical structure, and correspondingly, the mounting cylinder 10 and the pen tip 20 are also cylindrical structures. In other embodiments, the pen holder 200, the mounting cylinder 10, and the pen tip 20 can adopt other shapes, such as a square cylindrical structure. Furthermore, the shapes of the pen holder 200, the mounting cylinder 10, and the pen tip 20 can also be set differently; for example, the pen holder 200 can be set as a square cylindrical structure, and the mounting cylinder 10 and the pen tip 20 can be set as cylindrical structures. This utility model does not limit the shape of the laser pointer 1000, the mounting cylinder 10, and the pen tip 20.

[0039] Furthermore, in this embodiment, a battery is provided inside the pen holder 200 for powering the laser emitter. The pen holder 200 also has a charging port for charging the battery. In this embodiment, the charging port is located at the end of the pen holder 200 furthest from the laser pointer structure 100.

[0040] In this embodiment, when the pen tip 20 needs to be removed from the mounting cylinder 10, normally, the laser switch 201 on the pen cylinder 200 should be released to turn off the laser head 11, preventing the laser emitter from emitting laser light and thus preventing the laser from escaping from the opening 13 of the mounting cylinder 10. However, in special circumstances, such as when the pen tip 20 is removed, if the operator accidentally touches the laser switch, or if a young child plays with the laser pen and presses the laser switch while looking directly at it, the laser may be emitted from the mounting cylinder 10 and then shine directly into the eyes of the operator or other personnel, causing damage to their eyes. To avoid this situation, in this embodiment, a light-shielding member 12 is provided at the opening 13 of the mounting cylinder 10. In this embodiment, when the pen tip 20 is installed on the mounting cylinder 10, the light shield 12 is opened, and the laser can be emitted from the light outlet 22 of the pen tip 20; when the pen tip 20 is removed from the mounting cylinder 10, the laser is blocked by the light shield 12, and the laser cannot be emitted from the opening 13 of the mounting cylinder 10, thereby avoiding the situation where the laser shines directly into the eyes due to operator misoperation, and avoiding damage to the eyes.

[0041] In this embodiment, a light tube 21 is provided inside the pen tip 20. It is understood that by fixing the light tube 21 inside the pen tip 20, as the pen tip 20 is gradually installed onto the mounting cylinder 10, the light tube 21 can abut against the light-shielding member 12, thereby opening the light-shielding member 12. When the pen tip 20 is installed in place, the laser emitted from the laser head 11 of the laser emitter directly enters the light tube 21 and exits from the light outlet 22. When the pen tip 20 is removed from the mounting cylinder 10, the light-shielding member 12 disengages from the abutment of the light tube 21, thereby blocking the light source. It is understood that in this embodiment, the light-shielding member 12 is an elastic structure; without the pressure of the light tube 21, the light-shielding member 12 automatically resets and closes, thereby blocking the laser from the laser emitter.

[0042] It is understood that in this embodiment, when the pen tip 20 is mounted on the mounting cylinder 10, the light tube 21 on the pen tip 20 extends into the interior of the mounting cylinder 10. Specifically, the light tube 21 enters the mounting cylinder 10 through the opening 13, thereby opening the light shield 12 at the opening 13.

[0043] Please refer to Figure 2 and Figure 3Specifically, in this embodiment, the light-shielding member 12 includes a plurality of elastic valves 122. The elastic valves 122 are mounted on the side wall of the mounting cylinder 10 and are arranged toward the axis of the mounting cylinder 10; when the pen tip 20 is mounted on the mounting cylinder 10, the light tube 21 abuts against the elastic valves 122 to deform the elastic valves 122 toward the laser emitter; when the pen tip 20 is removed from the mounting cylinder 10, the elastic valves 122 spring up to make the plurality of elastic valves 122 contact each other to close the opening 13.

[0044] Furthermore, in this embodiment, the light-shielding member 12 is detachably connected to the mounting cylinder 10. It is understood that the light-shielding member 12 is prone to wear; therefore, making the connection between the light-shielding member 12 and the mounting cylinder 10 detachable facilitates replacement of the light-shielding member 12. Specifically, in this embodiment, the light-shielding member 12 and the mounting cylinder 10 are bonded together.

[0045] Understandably, in this embodiment, the laser head 11 of the laser emitter is mounted at the center of the bottom of the mounting cylinder 10. Multiple elastic valves 122 are mounted at the opening 13 of the mounting cylinder 10. One end of each elastic valve 122 is mounted on the side wall of the mounting cylinder 10, and the other end faces the axis of the mounting cylinder 10. The multiple elastic valves 122 cover the cross-section of the opening 13 of the mounting cylinder 10, thereby blocking laser emission from inside the mounting cylinder 10. In this embodiment, the optical tube 21 is fixedly connected to the inside of the pen tip 20, and the axis of the optical tube 21 coincides with the axis of the pen tip 20, so that when the pen tip 20 is mounted on the mounting cylinder 10, the laser head 11 and the optical tube 21 are correspondingly positioned. During the installation of the pen tip 20, the end of the optical tube 21 away from the light outlet 22 abuts against the end of the elastic valve 122 away from the side wall of the mounting cylinder 10. As the light tube 21 gradually enters the mounting cylinder 10, the elastic valve 122 is pressed down by the light tube 21 and deforms towards the inside of the mounting cylinder 10, at which point the light shield 12 opens. When the pen tip 20 is removed from the mounting cylinder 10, the elastic valve 122 recovers its deformation and springs back out of the mounting cylinder 10. Multiple elastic valves 122 then cover the opening 13 section of the mounting cylinder 10, thereby blocking the laser from escaping from inside the mounting cylinder 10.

[0046] Specifically, in this embodiment, the mounting cylinder 10 is a cylindrical structure, and the elastic valve 122 is a fan-shaped structure. Of course, in other embodiments, the mounting cylinder 10 and the elastic valve 122 can be configured with other shapes; for example, the mounting cylinder 10 can be configured as a square cylinder, and the elastic valve 122 as a triangular structure. As long as multiple elastic valves 122 can cover the opening 13 of the mounting cylinder 10, the shape of the elastic valve 122 is not limited in this invention.

[0047] Optionally, in this embodiment, the number of elastic valves 122 is set to four. The four elastic valves 122 are arranged sequentially around the axis of the mounting cylinder 10. In other embodiments, the number of elastic valves 122 can be set to three or more. It is understood that the more elastic valves 122 there are, the better the blocking effect of the shielding component on the laser, but the size of a single elastic valve 122 will also be smaller and more difficult to manufacture. As long as the elastic valves 122 can block the laser, this utility model does not limit the number of elastic valves 122.

[0048] Specifically, in this embodiment, the elastic valve 122 can be made of rubber. Of course, in other embodiments, the elastic valve 122 can be made of other materials, such as thermoplastic elastomer (TPE). As long as the elastic valve 122 can be opened or closed, the present invention does not limit the material of the elastic valve 122.

[0049] Furthermore, to avoid material interference when the elastic valve 122 deforms, a gap is provided between the elastic valves 122 in this embodiment. It is understood that by providing gaps between the elastic valves 122, compression will not occur at the junctions of the multiple elastic valves 122 when the elastic valves 122 deform.

[0050] Furthermore, to facilitate the processing and installation of the light-shielding component, in this embodiment, the light-shielding component 12 also includes a connecting portion 121. The connecting portion 121 is annular, and multiple elastic valves 122 are connected to the inner side of the connecting portion 121 and extend towards the center of the connecting portion 121. The connecting portion 121 is disposed on the side wall of the mounting cylinder 10. It can be understood that in this embodiment, the light-shielding component 12 is a one-piece structure, formed by cutting the connecting portion 121 and the elastic valves 122 from the light-shielding component material. Of course, the light-shielding component 12 can also be directly molded, and this utility model does not limit this. When installing the light-shielding component 12, it is only necessary to connect the connecting portion 121 to the side wall of the mounting cylinder 10; there is no need to separately position and install the elastic valves 122, making the operation convenient.

[0051] Please refer to Figure 2 The pen tip 20 includes a pen tip body 23 and a cylindrical portion 24 connected to each other. A light-emitting hole 22 is provided on the pen tip body 23. A light tube 21 is connected to the inner side of the pen tip body 23. The light tube 21 extends into the cylindrical portion 24. The cylindrical portion 24 is fitted onto the outer side of the mounting cylinder 10 and is detachably connected to the mounting cylinder 10. It can be understood that, in order to achieve the fitting installation of the pen tip 20 and the mounting cylinder 10, in this embodiment, the cylindrical portion 24 is designed to fit the shape of the mounting cylinder 10. Specifically, in this embodiment, the mounting cylinder 10 has a cylindrical structure. The cylindrical portion 24 is also set to a cylindrical structure. The diameter of the cylindrical portion 24 is slightly larger than the diameter of the mounting cylinder 10, so that the cylindrical portion 24 fits onto the side wall of the mounting cylinder 10.

[0052] Optionally, in this embodiment, the pen tip 20 and the mounting sleeve 10 are detachably connected. Specifically, the pen tip 20 and the mounting sleeve 10 can be connected by snap-fit, threaded connection, etc. As long as the pen tip 20 can be installed or removed, this application does not limit the connection method between the pen tip 20 and the mounting sleeve 10.

[0053] Specifically, in this embodiment, the cylindrical portion 24 and the mounting cylinder 10 are connected by threads. Threads are provided on both the inner wall of the cylindrical portion 24 and the outer wall of the mounting cylinder 10. In this embodiment, the pen tip 20 is rotatably mounted on the mounting cylinder 10. Since the axis of the optical tube 21 coincides with the axis of the cylindrical portion 24 in this embodiment, the position of the optical tube 21 relative to the axis of the mounting cylinder 10 remains unchanged when the pen tip 20 is installed, and the optical tube 21 always maintains a corresponding relationship with the laser head 11 at the bottom of the mounting cylinder 10.

[0054] Furthermore, in this embodiment, the end of the optical tube 21 furthest from the light emission hole 22 is located inside the tube portion 24. It is understood that the end of the optical tube 21 furthest from the light emission hole 22 does not extend beyond the end of the tube portion 24. When the pen tip 20 is removed from the mounting tube 10, the end of the tube portion 24 is made flat, facilitating the placement of the pen tip 20. Additionally, to prevent the optical tube 21 from being too long, it is important to avoid the optical tube 21 coming into contact with the laser head 11 during pen tip 20 mounting, which could damage the laser head 11.

[0055] To ensure optimal light output, in this embodiment, the diameter of the light tube 21 is greater than or equal to the diameter of the laser head 11 of the laser emitter. This arrangement ensures that the laser emitted from the laser head 11 completely enters the light tube 21, preventing light leakage.

[0056] In this embodiment, a patterned transparent element is also provided at the light-emitting hole 22. Specifically, the transparent element is a glass sheet with different patterns or colors, so that lasers of different colors or patterns are emitted from the pen tip 20. It can be understood that in this embodiment, the pen tip 20 is set as a detachable structure, and different pen tips 20 correspond to different colors or patterns of lasers.

[0057] The beneficial effects of the laser pointer tip structure 100 and laser pointer 1000 provided in this embodiment of the present invention include:

[0058] The laser pointer 100 of this utility model includes a mounting cylinder 10 and a pointer 20. A laser emitter is mounted on the bottom of the mounting cylinder 10. An opening 13 is provided at the end of the mounting cylinder 10 away from the laser emitter, and a light-shielding member 12 is provided at the opening 13. The pointer 20 is detachably connected to the mounting cylinder 10. A light tube 21 is provided inside the pointer 20. A light-emitting hole 22 communicating with the light tube 21 is provided on the pointer 20. When the pointer 20 is mounted on the mounting cylinder 10, the light tube 21 opens the light-shielding member 12 so that the laser emitter is aligned with the inside of the light tube 21; when the pointer 20 is removed from the mounting cylinder 10, the light-shielding member 12 blocks the laser. This invention features a light-shielding element 12 at the opening 13 of the mounting cylinder 10. When the pen tip 20 is removed, the light-shielding element 12 blocks the light source at the opening 13, preventing it from emitting light directly into the eyes and thus improving the safety of the laser pointer 1000. A light tube 21 is also installed on the pen tip 20 to cooperate with the light-shielding element 12. When the pen tip 20 is installed on the mounting cylinder 10, the light tube 21 opens the light-shielding element 12, allowing the laser to enter and exit through the light outlet 22. This design is convenient to use. In summary, this invention effectively blocks the laser when the pen tip 20 is removed, preventing direct eye damage, and allows the laser to exit when the light-shielding element 12 is opened during pen tip installation. The operation is simple and convenient.

[0059] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A laser pointer tip structure (100), characterized in that, include: The mounting cylinder (10) has a laser emitter installed inside. An opening (13) is provided at one end of the mounting cylinder (10) away from the laser emitter, and a light-shielding member (12) is provided at the opening (13). The pen tip (20) is detachably connected to the mounting cylinder (10). A light tube (21) is provided inside the pen tip (20), and a light outlet hole (22) communicating with the light tube (21) is provided on the pen tip (20). When the pen tip (20) is installed on the mounting cylinder (10), the light tube (21) opens the light shield (12) so that the laser emitter is correspondingly set inside the light tube (21). When the pen tip (20) is removed from the mounting cylinder (10), the light shield (12) blocks the laser.

2. The laser pointer tip structure (100) according to claim 1, characterized in that, The light-shielding component (12) includes multiple elastic valves (122). The elastic valves (122) are installed at the opening (13) of the mounting cylinder (10). One end of the elastic valve (122) is installed on the side wall of the mounting cylinder (10), and the other end of the elastic valve (122) is arranged towards the axis of the mounting cylinder (10). When the pen tip (20) is installed on the mounting cylinder (10), the light tube (21) abuts against the elastic valve (122) to deform the elastic valve (122) toward the laser emitter. When the pen tip (20) is removed from the mounting cylinder (10), the elastic valve (122) springs up to make the multiple elastic valves (122) contact each other to close the opening (13).

3. The laser pointer tip structure (100) according to claim 2, characterized in that, A gap is provided between the elastic valves (122).

4. The laser pointer tip structure (100) according to claim 2, characterized in that, The light-shielding member (12) also includes a connecting part (121), which is annular. A plurality of elastic valves (122) are connected to the inner side of the connecting part (121) and extend toward the center of the connecting part (121). The connecting part (121) is disposed on the side wall of the mounting cylinder (10).

5. The laser pointer tip structure (100) according to any one of claims 1-4, characterized in that, The light-shielding component (12) is detachably connected to the mounting cylinder (10).

6. The laser pointer tip structure (100) according to claim 1, characterized in that, The pen tip (20) includes a pen tip body (23) and a cylindrical part (24) connected to each other. The pen tip body (23) has a light-emitting hole (22). The inner side of the pen tip body (23) is connected to the light tube (21). The light tube (21) extends into the cylindrical part (24). The cylindrical part (24) is sleeved on the outer side of the mounting tube (10) and is detachably connected to the mounting tube (10).

7. The laser pointer tip structure (100) according to claim 6, characterized in that, The end of the light tube (21) away from the light outlet (22) is located inside the tube portion (24).

8. The laser pointer tip structure (100) according to claim 1, characterized in that, The diameter of the optical tube (21) is greater than or equal to the diameter of the laser head (11) of the laser emitter.

9. The laser pointer tip structure (100) according to claim 1, characterized in that, The light-emitting hole (22) is also provided with a patterned transparent part.

10. A laser pointer (1000), characterized in that, Includes the laser pointer tip structure (100) as described in any one of claims 1-9.