A laser pointer structure

Abstract

The utility model discloses a laser pen structure, including the pen body of laser pen, the pen head and the pen head cover, is equipped with the stroke groove in the neck outer wall of pen head along the circumferential direction, is installed with the hall switch of electric connection with power switch in the neck of pen head, hall switch is equipped with the conduction end of conduction power switch and the cut -off end of cutting off power switch, is installed with the thimble on the neck of pen head, the outside of thimble is equipped with outer thread, the inside of pen head cover is equipped with the inner thread of cooperation with outer thread, the inside of thimble is equipped with the magnetic piece of following thimble rotation alignment hall switch cut -off end when pen head cover screws out, following thimble rotation alignment hall switch conduction end when pen head cover screws in, and is equipped with the convex part of clamping in stroke groove when magnetic piece alignment hall switch cut -off end clamps tightly in one end of stroke groove, when magnetic piece alignment hall switch conduction end clamps tightly in the other end of stroke groove.

Description

Technical Field

[0001] This utility model relates to the field of laser pointers, and in particular to a laser pointer structure. Background Technology

[0002] A laser pointer is a demonstration-type laser product containing a laser generator. Its components include a pointer tip with a laser generator and a pointer cap with an optical lens. The laser emits a laser beam through the laser generator in the pointer tip; its intensity is expressed as laser radiation power. Excessive laser radiation power can cause photochemical and thermal damage to the human body. Therefore, by covering the pointer tip with a pointer cap, the laser beam is directed through the optical lens on the pointer cap, thus preventing direct contact with the human body and potential harm. However, in existing laser pointer designs, when the pointer cap is removed but the power switch controlling the laser generator is still on, the laser beam from the pointer tip can easily directly hit the human body, causing injury. Therefore, its safety is lacking. Utility Model Content

[0003] The purpose of this invention is to provide a laser pen structure in which the power switch is off when the pen tip cap is removed, thereby improving the safety of the laser pen.

[0004] The laser pointer structure of this utility model includes a pointer body, a pointer tip, and a pointer tip cap. A travel groove is provided along the circumferential direction on the outer wall of the neck of the pointer tip. A Hall switch electrically connected to a power switch is installed inside the neck of the pointer tip. The Hall switch has a conducting end for turning on the power switch and a cutting end for turning off the power switch. A collar is installed outside the neck of the pointer tip. The collar has an external thread on its outside. The pointer tip cap has an internal thread that mates with the external thread. The collar has a magnetic component inside that rotates with the collar to align with the cutting end of the Hall switch when the pointer tip cap is unscrewed and rotates with the collar to align with the conducting end of the Hall switch when the pointer tip cap is screwed in. It also has a protrusion that engages with the travel groove and is locked at one end of the travel groove when the magnetic component is aligned with the cutting end of the Hall switch and at the other end of the travel groove when the magnetic component is aligned with the conducting end of the Hall switch.

[0005] The laser pointer structure of this invention features a collar mounted on the neck of the pointer tip. The inner wall of the collar has a magnetic component that aligns with the cutoff and on ends of a Hall effect switch, as well as a protrusion that engages with a travel groove. When the pointer tip cap is tightened onto the collar, the protrusion slides from one end of the travel groove to the other as the collar rotates. At this time, the magnetic component aligns with the on end of the Hall effect switch, turning on the power switch, and the laser pointer can be used. The laser beam, after passing through the pointer tip cap, avoids direct exposure to the human body, thus preventing injury. When the pointer tip cap is unscrewed from the collar, the protrusion slides to the opposite end of the travel groove as the collar rotates. At this time, the magnetic component aligns with the cutoff end of the Hall effect switch, turning off the power switch, and the laser pointer cannot be used. This prevents the laser beam from directly irradiating the human body, thus improving the safety of the laser pointer.

[0006] As a preferred embodiment of this utility model, the outer wall of the neck of the pen tip is provided with a guide groove for the protrusion to be engaged in the stroke groove.

[0007] As a preferred embodiment of this utility model, arc-shaped limiting plates are provided at both ends of the stroke groove.

[0008] As a preferred embodiment of this utility model, the on and off ends of the Hall switch are closely attached to the inner wall of the neck of the pen tip.

[0009] As a preferred embodiment of this utility model, a Hall switch circuit board is installed inside the neck of the pen tip, and the Hall switch circuit board is electrically connected to the Hall switch and the laser generator.

[0010] As a preferred embodiment of this utility model, a power switch circuit board is installed inside the pen body, and the power switch circuit board is electrically connected to the power switch and the Hall switch circuit board.

[0011] As a preferred embodiment of this utility model, the power switch is disposed on the pen body, with one end mounted on the power switch circuit board and the other end extending from the inner wall of the pen body to the outer wall of the pen body.

[0012] As a preferred embodiment of this utility model, a filter is installed inside the pen tip cover.

[0013] As a preferred embodiment of this utility model, the magnetic component is a magnet.

[0014] As a preferred embodiment of this utility model, the magnet is configured as a circular magnet. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the laser pointer of this utility model;

[0016] Figure 2 This is an exploded view of the laser pointer of this utility model;

[0017] Figure 3 This is another exploded view of the laser pointer of this utility model;

[0018] Figure 4 This is another exploded view of the laser pointer of this utility model;

[0019] Figure 5 This is a schematic diagram of the collar structure;

[0020] Figure 6 This is a schematic diagram of the pen tip structure. Detailed Implementation

[0021] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In this utility model, it should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] A laser pointer structure, such as Figure 1 - Figure 6 As shown, the laser pointer includes a body 1, a tip 2, and a tip cap 3. A travel groove 4 is provided on the outer wall of the neck of the tip along the circumferential direction. A Hall switch electrically connected to a power switch is installed inside the neck of the tip. The Hall switch has a conducting end 5 for turning on the power switch and a cutting end 6 for turning off the power switch. A collar 7 is installed on the outside of the neck of the tip. The collar has an external thread 8. The tip cap has an internal thread 9 that matches the external thread. The collar has a magnetic component 10 inside that rotates with the collar to align with the cutting end of the Hall switch when the tip cap is unscrewed and rotates with the collar to align with the conducting end of the Hall switch when the tip cap is screwed in. There is also a protrusion 11 that is engaged in the travel groove and is locked at one end of the travel groove when the magnetic component is aligned with the cutting end of the Hall switch and at the other end of the travel groove when the magnetic component is aligned with the conducting end of the Hall switch.

[0024] A filter 17 is installed inside the pen tip cap. When the pen tip cap is tightened on the collar, the protrusion of the collar slides from one end of the travel groove to the other end as the collar rotates. At this time, the magnetic component is aligned with the Hall switch's on end, turning on the power switch, and the laser pointer can be used. After the laser beam passes through the filter 17 on the pen tip cap, the laser beam is reduced to Class 3R safety, preventing direct irradiation of the human body and causing injury. When the pen tip cap is unscrewed from the collar, the protrusion of the collar slides to the opposite end of the travel groove as the collar rotates. At this time, the magnetic component is aligned with the Hall switch's off end, turning off the power switch, and the laser pointer cannot be used, preventing the laser beam from directly irradiating the human body and causing injury, thereby improving the safety of the laser pointer.

[0025] The magnetic component uses a magnet, which is a circular magnet embedded in the inner wall of the collar. It protrudes slightly from the inner wall of the collar to increase the induction force between the magnet and the Hall switch. The protrusion is a disc-shaped protrusion, with one side embedded in the inner wall of the collar and the other side protruding into the travel groove.

[0026] like Figure 6 As shown, the outer wall of the neck of the pen tip is provided with a guide groove 12 for the protrusion to engage with the travel groove. The guide groove makes it easier for the protrusion to engage with the travel groove.

[0027] Arc-shaped limiting plates 13 are provided at both ends of the travel groove. The arc-shaped limiting plates can effectively lock the protrusion at both ends of the travel groove.

[0028] The conducting and cutting ends of the Hall switch are in close contact with the inner wall of the pen tip's neck, which can further increase the inductive force between the magnet and the Hall switch.

[0029] A Hall effect switch circuit board 14 is installed inside the neck of the pen tip, and the Hall effect switch circuit board is electrically connected to the Hall effect switch and the laser generator. A power switch circuit board 15 is installed inside the pen body, and the power switch circuit board is electrically connected to the power switch and the Hall effect switch circuit board. The power switch 16 is located on the pen body, with one end mounted on the power switch circuit board and the other end extending from the inner wall of the pen body to the outer wall of the pen body, making it easier to press the power switch and making operation more convenient.

[0030] The above embodiments are only used to illustrate the detailed solution of this utility model. This utility model is not limited to the above detailed solution, that is, it does not mean that this utility model must rely on the above detailed solution to be implemented. Those skilled in the art should understand that any improvement to this utility model, equivalent substitution of the raw materials of this utility model product, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of this utility model.

Claims

1. A laser pointer structure, comprising a pointer body (1), a pointer tip (2), and a pointer tip cap (3), characterized in that, A travel groove (4) is provided on the outer wall of the neck of the pen tip along the circumferential direction. A Hall switch electrically connected to the power switch is installed inside the neck of the pen tip. The Hall switch has a conducting end (5) for turning on the power switch and a cutting end (6) for turning off the power switch. A collar (7) is installed on the outside of the neck of the pen tip. The collar has an external thread (8) on its outside. The pen tip cover has an internal thread (9) that matches the external thread. The collar has a magnetic element (10) that rotates with the collar when the pen tip cover is unscrewed and aligns with the cutting end of the Hall switch, and rotates with the collar when the pen tip cover is screwed in and aligns with the conducting end of the Hall switch. It also has a protrusion (11) that is engaged in the travel groove and is locked at one end of the travel groove when the magnetic element is aligned with the cutting end of the Hall switch, and locked at the other end of the travel groove when the magnetic element is aligned with the conducting end of the Hall switch.

2. The laser pointer structure according to claim 1, characterized in that, The outer wall of the neck of the pen tip is provided with a guide groove (12) for the protrusion to be inserted into the stroke groove.

3. The laser pointer structure according to claim 1, characterized in that, Arc-shaped limit plates (13) are provided at both ends of the travel groove.

4. The laser pointer structure according to claim 1, characterized in that, The on and off terminals of the Hall switch are in close contact with the inner wall of the neck of the pen tip.

5. The laser pointer structure according to claim 1, characterized in that, A Hall switch circuit board (14) is installed inside the neck of the pen tip. The Hall switch circuit board is electrically connected to the Hall switch and the laser generator.

6. The laser pointer structure according to claim 5, characterized in that, A power switch circuit board (15) is installed inside the pen body. The power switch circuit board is electrically connected to the power switch and Hall switch circuit boards.

7. The laser pointer structure according to claim 6, characterized in that, The power switch (16) is located on the pen body, with one end mounted on the power switch circuit board and the other end extending from the inner wall of the pen body to the outer wall of the pen body.

8. The laser pointer structure according to any one of claims 1-7, characterized in that, A filter (17) is installed inside the pen tip cap.

9. The laser pointer structure according to any one of claims 1-7, characterized in that, The magnetic component is a magnet.

10. The laser pointer structure according to claim 9, characterized in that, The magnet is set to be a round magnet.

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