CN211653976U - Laser pen for teaching - Google Patents
Laser pen for teaching Download PDFInfo
- Publication number
- CN211653976U CN211653976U CN202020226943.7U CN202020226943U CN211653976U CN 211653976 U CN211653976 U CN 211653976U CN 202020226943 U CN202020226943 U CN 202020226943U CN 211653976 U CN211653976 U CN 211653976U
- Authority
- CN
- China
- Prior art keywords
- laser
- laser pen
- groove
- protection casing
- pen body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 3
- 241000251468 Actinopterygii Species 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Laser Beam Processing (AREA)
Abstract
The utility model provides a laser pen is used in teaching, including the laser pen body, the one end of laser pen body is equipped with the laser emission head, the outside of laser emission head is equipped with the protection casing, the outer wall of laser pen body is equipped with the recess, the recess includes that two that are close to a cross slot and symmetry setting that the laser emission head set up erect the groove, it is linked together with the cross slot to erect the groove, the protection casing passes through link and groove connection, the link is including the connecting rod that the symmetry set up, the top of connecting rod is equipped with the spring, the bottom is equipped with spherical slider, the other end and the protection casing fixed connection of spring, be equipped with in the recess with slider shape assorted space. The utility model discloses can shelter from and protect laser emission end through the protection casing, under the condition that does not use the laser pen, reduce the possibility that the laser emission head was by fish tail or wearing and tearing to improve the life of laser pen, be difficult to lose when plucking the protection casing simultaneously, convenience simple to use, the practicality is strong.
Description
Technical Field
The utility model relates to a teaching aid, concretely relates to laser pen is used in teaching.
Background
The secretary management profession usually needs to master the basic theory and basic knowledge of the public and secretary professions, familiarize the principles and methods of modern secretary and secretary, and understand the subjects of information publicity, secretary service, daily office management, public relations and the like. Because the content of the professional teaching of the secretarial management is mostly characters and is not explained by formulas, the teaching is carried out by PPT (Power Point) demonstration manuscripts, and a laser pen is needed to be used to complete the instruction in the course of teaching the content. The existing laser pen is usually only provided with a switch button, and has the disadvantages that a laser emitting head is often in an exposed state, so that the service life is prolonged due to easy abrasion, and the problem of fast consumption of the laser pen and resource waste is caused because a lamp holder is not easy to take and replace.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laser pen is used in teaching to the problem that prior art exists, the problem that the laser emission head of having solved current laser pen easily weares and teares, life is low.
Therefore, the utility model adopts the following technical proposal:
the utility model provides a laser pen is used in teaching, includes the laser pen body, the one end of laser pen body is equipped with the laser emission head, the outside of laser emission head is equipped with the protection casing, the outer wall of laser pen body is equipped with the recess, the recess includes that two that are close to a cross slot and symmetry setting that the laser emission head set up erect the groove, it is linked together with the cross slot to erect the groove, the protection casing passes through link and groove connection, the link is including the connecting rod that the symmetry set up, the top of connecting rod is equipped with the spring, the bottom is equipped with spherical slider, the other end and the protection casing fixed connection of spring, be equipped with in the recess with slider shape assorted space.
Further, the outer wall of the laser pen body is provided with a first limiting groove and a second limiting groove.
Furthermore, one side of the protective cover close to the laser emitting head is provided with an anti-abrasion layer, and the anti-abrasion layer is made of cotton yarn.
Further, the distance between the adjacent vertical grooves is just equal to the distance between the adjacent connecting rods, and the length of each vertical groove is smaller than that of the laser pen body.
The beneficial effects of the utility model reside in that:
the utility model discloses can shelter from and protect the laser emission head through the protection casing, reduce the possibility that the laser emission head is by fish tail or wearing and tearing under the condition that does not use the laser pen to improve the life of laser pen, be difficult to lose when plucking the protection casing simultaneously, convenience simple to use, the practicality is strong.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the connecting frame of the present invention;
fig. 3 is a schematic structural view of the first limiting groove of the present invention.
In the figure, 1-a laser pen body, 2-a laser emitting head, 3-a protective cover, 31-a protective layer, 4-a groove, 41-a transverse groove, 42-a vertical groove, 5-a connecting frame, 51-a connecting rod, 52-a spring, 53-a sliding block, 6-a first limiting groove and 7-a second limiting groove.
Detailed Description
The technical solution of the present invention will be described below with reference to the accompanying drawings and implementation methods.
As shown in figure 1, a laser pen is used in teaching, including laser pen body 1, the one end of laser pen body 1 is equipped with laser emission head 2, and laser emission head 2's outside is equipped with protection casing 3, and protection casing 3 is close to one side of laser emission head 2 and is equipped with abrasionproof layer 31, and abrasionproof layer 31 is made by cotton yarn material, avoids producing the fish tail to laser emission head 2.
The outer wall of the laser pen body 1 is provided with a groove 4, the groove 4 comprises a transverse groove 41 arranged close to the laser emitting head 2 and two symmetrical vertical grooves 42, the vertical grooves 42 are communicated with the transverse groove 41, and the protective cover 3 is connected with the groove 4 through a connecting frame 5; as shown in fig. 2, the connecting frame 5 includes connecting rods 51 symmetrically arranged, the top of the connecting rod 51 is provided with a spring 52, the bottom of the connecting rod 51 is provided with a spherical slider 53, the other end of the spring 52 is fixedly connected with the shield 3, a gap matched with the slider 53 in shape is arranged in the groove 4, the slider 53 can slide back and forth along the gap, and a damping is provided between the two, so that a certain positioning effect is achieved; the outer wall of the laser pen body 1 is further provided with a first protruding limiting groove 6 and a second protruding limiting groove 7, wherein the first limiting groove 6 is arranged close to the transverse groove 41, and the second limiting groove 7 is arranged close to the vertical groove 42, as shown in fig. 3, both of which are provided with concave portions matched with the side shapes of the connecting rod 51 for fixing the position of the protective cover 3.
When the laser pen is not needed, the protective cover 3 is held by hand and slightly stretched to cover the laser emitting head 2, then the connecting frame 5 is clamped in the first limiting groove 6, and the stretching aims to enable the spring 52 to deform, so that the total length of the connecting frame 5 is lengthened, and friction with the laser emitting head 2 is avoided; when the laser pen is used, the protective cover 3 is still slightly stretched outwards, and slides along the vertical groove 42 after rotating for 90 degrees, stops when sliding to the groove tail, and clamps the connecting frame 5 in the second limiting groove 7 to complete positioning. The utility model discloses can reduce the possibility that the laser emission head is by fish tail or wearing and tearing to improve the life of laser pen, be difficult to lose when plucking the protection casing simultaneously, convenience simple to use, the practicality is strong, and the whole material of link 5 all has the PVC material to make in addition, and weight is lighter, can not bring the burden for gripping.
Claims (4)
1. The utility model provides a laser pen is used in teaching, includes the laser pen body, its characterized in that, the one end of laser pen body is equipped with the laser emission head, the outside of laser emission head is equipped with the protection casing, the outer wall of laser pen body is equipped with the recess, the recess includes that two that are close to a cross slot and symmetry setting that the laser emission head set up erect the groove, it is linked together with the cross slot to erect the groove, the protection casing passes through link and groove connection, the link is including the connecting rod that the symmetry set up, the top of connecting rod is equipped with the spring, the bottom is equipped with spherical slider, the other end and the protection casing fixed connection of spring, be equipped with in the recess with slider shape assorted space.
2. The laser pen for teaching as claimed in claim 1, wherein the outer wall of the laser pen body is provided with a first limiting groove and a second limiting groove.
3. The laser pointer as claimed in claim 1, wherein the protective cover has an anti-wear layer on a side thereof adjacent to the laser emitting head, and the anti-wear layer is made of cotton yarn.
4. The laser pen for teaching as claimed in claim 1, wherein the distance between adjacent vertical slots is exactly equal to the distance between adjacent connecting rods, and the length of the vertical slot is less than the length of the laser pen body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020226943.7U CN211653976U (en) | 2020-02-28 | 2020-02-28 | Laser pen for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020226943.7U CN211653976U (en) | 2020-02-28 | 2020-02-28 | Laser pen for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211653976U true CN211653976U (en) | 2020-10-09 |
Family
ID=72685673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020226943.7U Expired - Fee Related CN211653976U (en) | 2020-02-28 | 2020-02-28 | Laser pen for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211653976U (en) |
-
2020
- 2020-02-28 CN CN202020226943.7U patent/CN211653976U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |