A teaching pointer
By setting adjustment components on the reversing head of the teaching indicator stylus, including a turntable and non-circular through-grooving, the problem that the laser line length of the existing laser pen cannot be easily adjusted, and the flexible adjustment and applicability of the laser line length are achieved.
Patent Information
- Application Number
- CN202420876385.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-25
AI Technical Summary
When existing laser pens use Powell lenses to convert dot-shaped lasers into linear lasers, the laser line length cannot be easily adjusted, resulting in insufficient or too large lengths when used in different positions, and are prone to direct shots to students' eyes, which is insufficient for applicability.
A teaching indicator stylus is designed, which includes a flat lens and a Powell lens on the commutation head rotatably connected at the end of the pen body. An adjustment component is rotatably connected above the Powell lens. The adjustment component includes a turntable rotating in the commutation head. The turntable is open in the center of the turntable, and the opening groove is a non-circular structure with adjustable laser line length.
By rotating the turntable in front of the Powell lens, the shape of the through-grooving can be adjusted easily, adapting to different teaching needs, while reducing the cost of use.
Smart Images
Figure CN222749082U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of laser pens, and in particular to a teaching indicating pen. Background Art
[0002] In order to improve the efficiency and effect of current teaching, projectors are usually used for teaching. In order to further facilitate the teaching process, laser pens are used for teaching. The laser pen uses the laser point it emits to indicate the content of the explanation, and uses wireless connection to achieve effects such as turning pages of PPT. Most of the existing laser pens are point-shaped beams. When indicating a whole row of text, due to the distance and operation method, the lines will be irregular. In order to solve this problem, some indicator pens use Powell lenses to transform the point-shaped laser into a linear laser.
[0003] However, the length of the converted linear laser cannot be easily adjusted, resulting in different indication lengths when standing in different positions, insufficient length or excessive length, and direct exposure to students' eyes. Therefore, its applicability needs to be improved. Therefore, in order to solve the above problems, the present application provides a teaching indicator pen.
[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0005] In order to solve the problem that the length of the laser line of the existing laser pen using a Powell lens is not easy to adjust, the present application provides a teaching indicator pen.
[0006] The present application provides a teaching indicating pen, comprising a pen body, a lamp bead arranged on the pen body, and a commutation head rotatably connected to the end of the pen body, the commutation head is provided with a flat lens and a Powell lens respectively corresponding to the lamp bead, and an adjustment component is rotatably connected above the Powell lens, the adjustment component comprises a rotating disk rotating in the commutation head, and a through slot is provided at the center of the rotating disk, and the through slot is a non-circular structure that can adjust the length of the laser line. Preferably, the non-circular through slot is one of an elliptical and a diamond structure.
[0007] Preferably, the outer annular array of the turntable has latch teeth, and the outer side of the turntable is also meshingly connected to a knob provided with a protruding reversing head.
[0008] Preferably, a groove is provided downwardly at the top of the pen body, and a plug-in groove is provided at the center of the groove.
[0009] Preferably, a plug-in rod is welded at the center of the bottom of the reversing head, and the plug-in rod is slidably embedded in the plug-in slot, and the bottom of the plug-in rod is elastically connected to the plug-in slot through a spring.
[0010] Preferably, a damping ring is coupled to the end of the plug-in rod, and the damping ring is coupled to the inner wall of the plug-in slot.
[0011] Preferably, a rubber ring is fixedly connected to the inner side of the groove.
[0012] Preferably, the bottom of the reversing head is provided with a convex ridge corresponding to the rubber ring, and a clearance fit is formed between the convex ridge and the rubber ring.
[0013] Preferably, a bump is welded on the outer side wall of the reversing head.
[0014] In summary, this application includes the following beneficial technical effects:
[0015] By rotating a connecting turntable in front of the Powell lens and providing a non-circular through groove in the turntable, the contact area between the turntable and the linear laser emitted by the Powell lens changes during the rotation of the turntable, thereby conveniently adjusting the length of the laser line. Compared with the prior art, this structure is simple and the cost of use is reduced while achieving the adjustment of the laser line length.
[0016] By setting a rubber ring in the groove of the pen body, matching the gap between the rubber ring and the convex ridge, and then coordinating with a damping ring and a spring, the laser pen can be protected at one end of the reversing head, reducing the possibility of damaging the lamp bead by impact in this direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is an isometric view in Example 1 of the present application;
[0018] Figure 2 This is a structural diagram of the top of the pen body in Example 1 of the present application;
[0019] Figure 3 is a longitudinal cross-sectional view of the top of the pen body in the first embodiment of the present application;
[0020] Figure 4 This is an isometric view of the reversing head in the first embodiment of the present application from a bottom up perspective;
[0021] Figure 5 It is a horizontal cross-sectional view of the reversing head in the first embodiment of the present application.
[0022] Explanation of the reference numerals: 1. Pen body; 111. Groove; 112. Plug-in slot; 2. Button; 3. Lamp bead; 4. Reversing head; 41. Raised ridge; 5. Flat lens; 6. Adjustment assembly; 61. Turntable; 611. Through slot; 62. Knob; 7. Bump; 8. Powell lens; 9. Spring; 10. Plug-in rod; 1001. Damping ring; 11. Rubber ring. DETAILED DESCRIPTION
[0023] The following is combined with Figure 1 - Figure 5 This application is described in further detail.
[0024] Example 1: Reference Figure 1 - Figure 5 A teaching indicating pen comprises a pen body 1, a lamp bead 3 arranged on the pen body 1, and a reversing head 4 rotatably connected to the end of the pen body 1, and the reversing head 4 is respectively provided with a flat lens 5 and a Powell lens 8 corresponding to the lamp bead 3, and the Powell lens 8 can transform a point-shaped laser into a linear laser, and a button 2 for controlling a laser pen and a projector is arranged on the pen body 1, referring to Figure 5 An adjustment component 6 is rotatably connected above the Powell lens 8. The adjustment component 6 includes a turntable 61 that rotates in the commutation head 4. The outer annular array of the turntable 61 has latch teeth, and the outer side of the turntable 61 is also meshingly connected to a knob 62 that protrudes from the commutation head 4. The outer side of the knob 62 is provided with latch teeth that mesh with the latch teeth of the turntable 61. The knob 62 protrudes from the commutation head 4 so that the user can control it. There are two knobs 62, which are respectively arranged on the front and rear sides of the commutation head 4, so that different ways of holding the laser pen can conveniently adjust the angle of the turntable 61, thereby improving the practicality of the device.
[0025] Reference Figure 5 A through slot 611 is provided at the center of the turntable 61. The through slot 611 is a non-circular structure that can adjust the length of the laser line. The non-circular through slot 611 is one of an elliptical and diamond-shaped structure. The elliptical and diamond-shaped structures have different width ranges. Therefore, when the turntable 61 is rotated to different positions, different straight line lengths can be obtained to meet different teaching needs. The non-circular through slot 611 can also be other special-shaped structures as long as it can achieve the change of the length of the laser line at different angles.
[0026] Reference Figure 2-Figure 4 A groove 111 is opened downward at the top of the pen body 1, and a plug-in groove 112 is opened at the center of the groove 111. A plug-in rod 10 is welded at the center of the bottom of the reversing head 4, and the plug-in rod 10 is slidably embedded in the plug-in groove 112. The bottom of the plug-in rod 10 is elastically connected to the plug-in groove 112 by a spring 9. Connecting pieces are welded to the top and bottom of the spring 9. The connecting pieces at both ends of the spring 9 are fixedly connected by bolts and the bottom end of the plug-in rod 10 and the internal threads of the plug-in groove 112, respectively, so as to realize the installation of the reversing head 4 on the pen body 1. A damping ring 1001 is coupled to the end of the plug-in rod 10, and the damping ring 1001 is coupled to the inner wall of the plug-in groove 112. The damping ring 1001 and the inner wall of the plug-in groove 112 fit and slide, so that the spring 9 will not be in a vibrating reciprocating state for a long time during the resetting and compression process, thereby ensuring the stability of the structure.
[0027] Reference Figure 3 , Figure 4A rubber ring 11 is fixedly connected to the inner side of the groove 111, and a convex ridge 41 corresponding to the rubber ring 11 is arranged at the bottom of the reversing head 4, and the convex ridge 41 and the rubber ring 11 are matched with each other, and the gap between the convex ridge 41 and the rubber ring 11 enables the reversing head 4 to have a certain amount of activity when it is impacted, and the impact force is buffered by the mutual cooperation of the spring 9, the damping ring 1001 and the rubber ring 11, thereby reducing the possibility of damage to the lamp bead 3 at the front end of the pen body 1 and extending the service life of the laser pen.
[0028] Reference Figure 1 , Figure 4 and Figure 5 The outer wall of the commutation head 4 is welded with a protrusion 7, which is arranged on the left and right sides of the commutation head 4, so as to facilitate the lifting of the commutation head 4. When the commutation head 4 needs to be reversed, the protrusion 7 is lifted up to make the convex rib 41 escape from the groove 111, the commutation head 4 is rotated 180°, the protrusion 7 is released, and the convex rib 41 is re-embedded into the groove 111 under the restoring force of the spring 9, and the laser is switched from point to line, or from line to point.
[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A teaching indicating pen, comprising a pen body (1), a lamp bead (3) arranged on the pen body (1), and a reversing head (4) rotatably connected to the end of the pen body (1), wherein the reversing head (4) is provided with a flat lens (5) and a Powell lens (8) corresponding to the lamp bead (3), characterized in that: An adjustment component (6) is rotatably connected above the Powell lens (8), and the adjustment component (6) comprises a turntable (61) that rotates in the reversing head (4), and a through slot (611) is provided at the center of the turntable (61), and the through slot (611) is a non-circular structure capable of adjusting the length of the laser line.
2. A teaching indicating pen according to claim 1, characterized in that: The non-circular through groove (611) is one of an elliptical and a diamond-shaped structure.
3. A teaching stylus according to claim 1, characterized in that: The outer ring array of the rotating disk (61) is provided with latch teeth, and the outer side of the rotating disk (61) is also meshingly connected to a knob (62) provided on the protruding reversing head (4).
4. A teaching stylus according to claim 1, characterized in that: The top of the pen body (1) is provided with a groove (111) extending downward, and the center of the groove (111) is provided with an inserting groove (112).
5. A teaching indicating pen according to claim 4, characterized in that: A plug-in rod (10) is welded at the center of the bottom of the reversing head (4), and the plug-in rod (10) is slidably embedded in the plug-in slot (112), and the bottom of the plug-in rod (10) is elastically connected to the plug-in slot (112) via a spring (9).
6. A teaching stylus according to claim 5, characterized in that: A damping ring (1001) is coupled to the end of the plug-in rod (10), and the damping ring (1001) is coupled to the inner wall of the plug-in groove (112).
7. A teaching stylus according to claim 4, characterized in that: A rubber ring (11) is fixedly connected to the inner side of the groove (111).
8. A teaching stylus according to claim 7, characterized in that: The bottom of the reversing head (4) is provided with a convex ridge (41) corresponding to the rubber ring (11), and a clearance fit is provided between the convex ridge (41) and the rubber ring (11).
9. The teaching pointing pen according to claim 1, characterized in that: A convex block (7) is welded to the outer side wall of the reversing head (4).