Laser page turning pen

Abstract

The utility model discloses a laser page turning pen which comprises a shell and a cover body, a receiver is installed between the shell and the cover body, the cover body comprises a first cover body and a second cover body, the first cover body is installed on the shell, the second cover body is detachably connected with the shell, the shell is provided with an installation groove matched with the receiver, and the receiver is installed in the installation groove. The mounting groove is located below the second cover body, the receiver is mounted in the mounting groove, an elastic ejection piece matched with the receiver is arranged in the mounting groove, the elastic ejection piece abuts against the receiver and enables the receiver to incline in the mounting groove, and when the second cover body and the mounting groove are closed, the receiver is ejected out of the mounting groove. The receiver extrudes the elastic ejection piece under the action of the second cover body, the receiver is limited in the mounting groove, and when the second cover body is separated from the mounting groove, the receiver is inclined under the action of the elastic ejection piece, and part of the receiver is exposed relative to the mounting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic remote control equipment, more specifically to a laser page turning pen. Background Art

[0002] A laser wireless presenter is an electronic product that projects lasers onto a screen to indicate key points. It is usually used in public places such as teaching and meetings, and is used with large screens, projectors, computers, etc. In addition to the mapping function of a traditional laser pointer, it can also directly remotely control a computer or multimedia projection device wirelessly by pressing the forward and backward page-turning buttons on the laser wireless presenter to achieve free page turning and random presentation of slides. During use, a wireless presenter also requires a corresponding receiver, and the receiver is generally plugged into a computer to receive signals sent by the wireless presenter body, so as to achieve operations such as page turning, pausing or starting by operating the wireless presenter. After the operation is completed, unplug the receiver and insert it into the wireless presenter to avoid losing it or being taken away by the plugged-in computer and affecting its reuse.

[0003] For example, the utility model patent with publication number: CN205983985U discloses a multifunctional laser page-turning pen, which includes a pen body, characterized in that a whiteboard pen head for writing on an electronic whiteboard is provided at the front end of the pen body, the whiteboard pen head is provided with a first through hole extending along the length direction of the pen body, a laser head and a control module are provided in the pen body, a control button for page-turning control is provided on the surface of the pen body, a receiver that can be separated from the pen body is provided on the pen body, the laser light emitted by the laser head can pass through the first through hole of the whiteboard pen head, the receiver is wirelessly connected to the control module, the control button is electrically connected to the control module, and when the receiver is unplugged from the pen body and inserted into the USB interface of the computer, the receiver wirelessly receives the signal emitted by the control module and can perform laser indication and page-turning control of the electronic document. In this technical solution, a mounting hole for mounting the receiver is provided on the pen clip holder, and the receiver can be detachably installed in the mounting hole. A magnet is embedded on the inner side of the first shell or the second shell, and the magnet is used to prevent the receiver from automatically falling out of the mounting hole. The reliability of the magnetic fixing method is limited. When the wireless presenter accidentally collides with an object, the receiver is likely to fall out of the mounting hole. In addition, the receiver is embedded in the mounting hole, and the user does not have enough force to apply, so it is difficult for the user to take out the receiver. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a laser page-turning pen, in which a receiver is limited in an installation groove by a second cover body, and the receiver is not easy to fall off. An elastic ejection piece is arranged in the installation groove so that the receiver is partially exposed in the installation groove, so that the user can take out the receiver from the installation groove and use it with less effort.

[0005] The utility model provides a laser page-turning pen, comprising a shell and a cover body, a receiver is installed between the shell and the cover body, the cover body comprises a first cover body and a second cover body, the first cover body is installed on the shell, the second cover body is detachably connected to the shell, the shell is provided with a mounting groove adapted to the receiver, the mounting groove is located below the second cover body, the receiver is installed in the mounting groove, an elastic ejector adapted to the receiver is provided in the mounting groove, the elastic ejector is in contact with the receiver and makes the receiver tilt in the mounting groove, when the second cover body and the mounting groove are closed, the receiver is squeezed by the second cover body to squeeze the elastic ejector, and the receiver is limited in the mounting groove, when the second cover body is detached from the mounting groove, the receiver is tilted by the elastic ejector, and part of the receiver is exposed relative to the mounting groove.

[0006] In the technical solution, a laser wireless presenter is provided with a shell and a cover as a mounting structure for parts, and the cover is combined with the shell to install parts such as a receiver, a battery and a circuit board. A mounting groove for accommodating the receiver is provided on the shell, and the cover includes a first cover and a second cover. The mounting groove is closed or opened by the second cover. The user only needs to open the second cover alone to take out the receiver without opening the entire cover, which makes taking out more labor-saving and reliable. An elastic ejector is provided in the mounting groove, and the receiver is abutted against the elastic ejector when installed in the mounting groove. The elastic ejector causes the receiver to tilt in the mounting groove, so that part of the receiver is exposed. The receiver is mounted outside the mounting groove, so that the user can directly take out the entire receiver through the part exposed on the outside, which greatly increases the receiving area of ​​the receiver, making it more convenient and labor-saving to take it. When the receiver needs to be stored, the user only needs to put the receiver into the mounting groove and then cover the second cover body. The receiver is squeezed by the second cover body to squeeze the elastic ejection piece, so that the elastic ejection piece is elastically deformed and is in a force storage state. When the receiver needs to be taken out, the user only needs to open the second cover body, and the elastic ejection piece is elastically reset. The receiver is tilted by the reset force of the elastic ejection piece, so that part of the receiver is exposed outside the mounting groove. The user can directly take out the receiver, and the receiver is reliably stored and convenient and labor-saving to take out.

[0007] As an improvement, a limiting protrusion adapted to the receiver is provided in the installation groove, one end of the receiver is limited in the installation groove by the limiting protrusion, and the other end of the receiver is exposed outside the installation groove by an elastic ejection piece. In this technical solution, by providing a limiting protrusion in the installation groove, when installing the receiver, the user first puts the receiver into the installation groove, and places one end of the receiver under the limiting protrusion, so that one end of the receiver abuts against the limiting protrusion, and the other end of the receiver is exposed outside the installation groove through the elastic ejection piece, so that the receiver is inclined in the installation groove. When the second cover body covers the installation groove, the second cover body presses down on the raised end of the receiver, and the end of the receiver abutting against the limiting protrusion cannot be raised due to the action of the limiting protrusion, making the installation more reliable and convenient.

[0008] As an improvement, the limiting protrusion is in the shape of a straight line. In this technical solution, the receiver is mostly in a rectangular structure. By setting a straight-line limiting protrusion, the limiting protrusion can be completely engaged with the receiver, the limiting protrusion is more suitable for the receiver, the limiting effect is better, and the straight-line limiting protrusion has a simple structure and is less difficult to produce.

[0009] As an improvement, the second cover is slidably connected to the shell, and the second cover is slid to open or close the installation slot. In this technical solution, the second cover is slidably connected to the shell, and the user can open or close the installation slot by sliding the second cover on the shell. The sliding opening and closing method is more labor-saving and provides a better user experience. When the receiver needs to be stored, the user slides the second cover to separate the second cover from the installation slot, and the user can directly put the receiver into the installation slot for storage, and then slide the second cover to cover the second cover with the installation slot, thereby limiting the receiver in the installation slot to complete the storage.

[0010] As an improvement, a first snap fastener is provided on the second cover body, a first snap fastener groove adapted to the first snap fastener is provided between the first cover body and the shell, and the second cover body snaps or disengages the first snap fastener from the first snap fastener groove by sliding. In this technical solution, the second cover body opens and closes the installation groove by sliding, and the first snap fastener is provided on the second cover body, the first cover body is installed on the shell, and the second cover body engages or disengages from the first cover body by sliding, so a first snap fastener groove is provided between the first cover body and the shell, the first snap fastener snaps with the second snap fastener groove by sliding to limit the second cover body on the shell, and the first snap fastener disengages from the second snap fastener groove by sliding in the opposite direction to release the limit between the second cover body and the shell, and the snap fastener structure is simple and the installation is more reliable.

[0011] As an improvement, the second cover is provided with a slider, and the housing is provided with a slide groove adapted to the slider, and the second cover is inserted into the slide groove through the slider and slides in the slide groove to be slidably connected with the housing. In this technical solution, by providing a slider on the second cover and a slide groove on the housing, the second cover is engaged with the housing by inserting the slider into the slide groove, and the second cover closes the installation groove by sliding the slider in the slide groove, and the cooperation between the slider and the slide groove makes the sliding efficiency higher and the user saves more effort.

[0012] As an improvement, the second cover body is provided with an anti-skid protrusion. In this technical solution, the user slides the second cover body to open or close the installation slot. By providing the anti-skid protrusion on the second cover body, the friction between the user's hand and the second cover body is increased by the anti-skid protrusion, so that the user can slide the second cover body more labor-savingly, and the user experience is better.

[0013] As an improvement, the cover body also includes a third cover body, the first cover body and the second cover body are installed on one side of the shell, the third cover body is installed on the other side of the shell, an installation cavity is formed between the third cover body and the shell, and a plurality of button holes are provided on the third cover body. In the present technical solution, the cover body includes a first cover body, a second cover body and a third cover body, the first cover body and the second cover body are distributed on the same side of the shell, the third cover body is distributed on the other side of the shell, and the third cover body is connected to the shell through the third shell to form an installation cavity, the installation cavity can be installed with components such as batteries, buttons and circuit boards, and the covers on both sides can be installed with different components respectively, and the installation efficiency is high. By providing button holes on the third cover body, the buttons are slidably installed on the button holes for users to press and operate, which is more convenient to use.

[0014] As an improvement, the second cover and the third cover are both connected to the shell by buckles, and the third cover is fixed to the shell by bolts. In this technical solution, the second cover is connected to the shell by buckles, and the installation method of the second cover is simple and reliable. The third cover is connected to the shell by buckles, and the third cover is fixed to the shell by bolts, which is simple to install and has a high strength of the connection structure.

[0015] As an improvement, the elastic ejector is provided with an abutment portion adapted to the receiver, and the abutment portion abuts against the front end or rear end of the receiver. In the technical solution, the elastic ejector abuts against the receiver so that the receiver can be pushed out, and the elastic ejector is provided with an abutment portion, and the elastic ejector abuts against the receiver through the abutment portion, and the abutment portion abuts against the front end or rear end of the receiver, so that the receiver can be tilted in the installation slot, so that the user can directly take out the entire receiver by tilting the end of the receiver on the outside, which is more convenient and labor-saving to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention discloses a three-dimensional structure schematic diagram of a laser wireless presenter.

[0017] Figure 2 The exploded view of a laser presenter disclosed herein.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the laser wireless presenter disclosed herein when the second cover is not installed.

[0019] Figure 4 For this disclosure Figure 3 A local enlarged schematic diagram of point A in the middle.

[0020] Figure 5 It is a side view schematic diagram of the laser presenter disclosed in the present invention when the second cover body is not installed.

[0021] Figure 6 For this disclosure Figure 5 A local enlarged schematic diagram of point B in the middle.

[0022] Figure 7 The present invention discloses a cross-sectional structural schematic diagram of a laser wireless presenter.

[0023] Figure 8 For this disclosure Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second cover body in the present disclosure.

[0025] As shown in the figure: 1. Shell; 11. Mounting groove; 111. Elastic ejector; 1111. Abutment portion; 112. Limiting protrusion; 12. First snap groove; 13. Slide groove; 14. First bolt hole; 2. First cover body; 3. Second cover body; 31. First snap member; 32. Slider; 33. Anti-slip protrusion; 4. Receiver; 5. Third cover body; 51. Key hole; 52. Second bolt hole. DETAILED DESCRIPTION

[0026] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0027] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0028] It should also be understood that the terms “comprises,” “including,” “has,” “contains,” and “comprising,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0029] like Figures 1 to 9As shown, the present application discloses a laser wireless presenter, comprising a shell 1 and a cover body, a receiver 4 is installed between the shell 1 and the cover body, the cover body comprises a first cover body 2 and a second cover body 3, the first cover body 2 is installed on the shell 1, and the second cover body 3 is detachably connected to the shell 1, the shell 1 is provided with a mounting groove 11 adapted to the receiver 4, the mounting groove 11 is located below the second cover body 3, the receiver 4 is installed in the mounting groove 11, and the laser wireless presenter is arranged as a mounting structure of parts through the shell 1 and the cover body, and the cover body and the shell 1 are covered to install parts such as the receiver 4, batteries and circuit boards, by providing a mounting groove 11 for accommodating the receiver 4 on the shell 1, and the cover body is arranged to include the first cover body 2 and the second cover body 3, and the mounting groove 11 is closed or opened by the second cover body 3, and the user only needs to open the second cover body 3 alone to take the receiver 4, without opening the entire cover body, and taking is more labor-saving and reliable;

[0030] like Figure 2 , Figures 5 to 8 As shown, an elastic ejector 111 adapted to the receiver 4 is provided in the mounting groove 11, and the elastic ejector 111 abuts against the receiver 4 and makes the receiver 4 tilt in the mounting groove 11. When the second cover body 3 and the mounting groove 11 are closed, the receiver 4 is squeezed by the second cover body 3 to squeeze the elastic ejector 111, and the receiver 4 is limited in the mounting groove 11. When the second cover body 3 is separated from the mounting groove 11, the receiver 4 is tilted by the elastic ejector 111, and part of the receiver 4 is exposed relative to the mounting groove 11. By arranging the elastic ejector 111 in the mounting groove 11, the receiver 4 will abut against the elastic ejector 111 when installed in the mounting groove 11, and the elastic ejector 111 makes the receiver 4 tilt in the mounting groove 11, so that part of the receiver 4 is exposed. The mounting groove 11 is outside the mounting groove 11, so that the user can directly take out the entire receiver 4 through the part exposed on the outside, which greatly increases the taking area of ​​the receiver 4, making it more convenient and labor-saving to take. When the receiver 4 needs to be stored, the user only needs to put the receiver 4 into the mounting groove 11, and then cover the second cover body 3. The receiver 4 is squeezed by the second cover body 3 to squeeze the elastic ejector 111, so that the elastic ejector 111 is elastically deformed and is in a force storage state. When the receiver 4 needs to be taken out, the user only needs to open the second cover body 3, and the elastic ejector 111 is elastically reset. The receiver 4 is tilted by the reset force of the elastic ejector 111, so that part of the receiver 4 is exposed outside the mounting groove 11, and the user can directly take out the receiver 4. The storage of the receiver 4 is reliable and it is convenient and labor-saving to take out.

[0031] More specifically, Figures 2 to 6As shown, a limiting protrusion 112 adapted to the receiver 4 is provided in the mounting groove 11, one end of the receiver 4 is limited in the mounting groove 11 by the limiting protrusion 112, and the other end of the receiver 4 is exposed outside the mounting groove 11 by the elastic ejection piece 111. By providing the limiting protrusion 112 in the mounting groove 11, when the user installs the receiver 4, the user first puts the receiver 4 into the mounting groove 11, and places one end of the receiver 4 under the limiting protrusion 112, so that one end of the receiver 4 abuts against the limiting protrusion 112, and the other end of the receiver 4 is exposed outside the mounting groove 11 through the elastic ejection piece 111, so that the receiver 4 is inclined in the mounting groove 11, and when the second cover body 3 covers the mounting groove 11, the second cover body 3 presses downward on the raised end of the receiver 4, and the end of the receiver 4 abutting against the limiting protrusion 112 cannot be raised due to the action of the limiting protrusion 112, so that the installation is more reliable and convenient.

[0032] More specifically, Figures 2 to 6 As shown, the limiting protrusion 112 is in a straight line shape, and the receiver 4 is mostly in a rectangular structure. By setting the straight line limiting protrusion 112, the limiting protrusion 112 can be completely engaged with the receiver 4, the limiting protrusion 112 is more suitable for the receiver 4, and the limiting effect is better. In addition, the straight line limiting protrusion 112 has a simple structure and is less difficult to produce.

[0033] More specifically, Figure 1 , Figure 2 and Figure 3 As shown, the second cover body 3 is slidably connected to the shell body 1, and the second cover body 3 opens or closes the installation groove 11 by sliding. The second cover body 3 is arranged to be slidably connected to the shell body 1. The user can open or close the installation groove 11 by sliding the second cover body 3 on the shell body 1. The sliding opening and closing method is more labor-saving to use and the user experience is better. When the receiver 4 needs to be stored, the user slides the second cover body 3 to disengage the second cover body 3 from the installation groove 11. The user can directly put the receiver 4 into the installation groove 11 for storage, and then slide the second cover body 3 to cover the second cover body 3 with the installation groove 11, thereby limiting the receiver 4 in the installation groove 11 to complete the storage.

[0034] More specifically, Figures 2 to 4As shown, a first snap-fitting piece 31 is provided on the second cover body 3, and a first snap-fitting groove 12 adapted to the first snap-fitting piece 31 is provided between the first cover body 2 and the shell body 1. The second cover body 3 snaps into or disengages from the first snap-fitting piece 31 by sliding, and the second cover body 3 opens and closes the mounting groove 11 by sliding. By arranging the first snap-fitting piece 31 on the second cover body 3, the first cover body 2 is mounted on the shell body 1, and the second cover body 3 engages with or disengages from the first cover body 2 by sliding. Therefore, a first snap-fitting groove 12 is provided between the first cover body 2 and the shell body 1, and the first snap-fitting piece 31 snaps into or disengages from the second snap-fitting piece 31 by sliding to limit the second cover body 3 on the shell body 1. The first snap-fitting piece 31 disengages from the second snap-fitting piece 3 by sliding in the opposite direction to release the limitation of the second cover body 3 and the shell body 1. The snap-fitting structure is simple and the installation is more reliable.

[0035] More specifically, Figures 2 to 4 , Fig. 9 As shown, the second cover body 3 is provided with a slider 32, and the shell 1 is provided with a slide groove 13 adapted to the slider 32. The second cover body 3 is inserted into the slide groove 13 through the slider 32 and slides in the slide groove 13 to be slidably connected with the shell 1. By arranging the slider 32 on the second cover body 3 and the slide groove 13 on the shell 1, the slider 32 is inserted into the slide groove 13 so that the second cover body 3 is engaged with the shell 1, and the slider 32 slides in the slide groove 13 so that the second cover body 3 closes the installation groove 11. The cooperation between the slider 32 and the slide groove 13 makes the sliding efficiency higher and the user saves more effort.

[0036] More specifically, Figure 1 and Figure 2 As shown, the second cover body 3 is provided with an anti-slip protrusion 33, and the user opens or closes the installation groove 11 by sliding the second cover body 3. By providing the anti-slip protrusion 33 on the second cover body 3, the friction between the user's hand and the second cover body 3 is increased through the anti-slip protrusion 33, so that the user can slide the second cover body 3 more effortlessly, and the user experience is better.

[0037] More specifically, Figure 2 As shown, the cover body also includes a third cover body 5, the first cover body 2 and the second cover body 3 are installed on one side of the shell 1, and the third cover body 5 is installed on the other side of the shell 1, an installation cavity is formed between the third cover body 5 and the shell 1, and a plurality of button holes 51 are provided on the third cover body 5, and the cover body includes the first cover body 2, the second cover body 3 and the third cover body 5, the first cover body 2 and the second cover body 3 are distributed on the same side of the shell 1, and the third cover body 5 is distributed on the other side of the shell 1, and the third shell 1 is connected to the shell 1 through the third shell 1 to form an installation cavity, and the installation cavity can be used to install components such as batteries, buttons and circuit boards, and the covers on both sides can be respectively installed with different components, and the installation efficiency is high. By setting the button hole 51 on the third cover body 5, the button is slidably installed on the button hole 51 for the user to press the operation, which is more convenient to use.

[0038] More specifically, Figure 2 and Figure 3 As shown, the second cover body 3 and the third cover body 5 are both connected to the shell body 1 by snap-fitting, and the third cover body 5 is fixed to the shell body 1 by bolts. The second cover body 3 is connected to the shell body 1 by snap-fitting, and the installation method of the second cover body 3 is simple and reliable. The third cover body 5 is connected to the shell body 1 by snap-fitting, and the third cover body 5 is fixed to the shell body 1 by bolts. A first bolt hole 14 adapted to the third cover body 5 is provided on the shell 1, and a second bolt hole 52 corresponding to the first bolt hole 14 is provided on the third cover body 5. Bolts pass through the first bolt hole 14 and the second bolt hole 52 to fix the third cover body 5 and the shell 1. The installation is simple and the connection structure strength is high.

[0039] More specifically, Figure 8 As shown, the elastic ejector 111 is provided with an abutting portion 1111 adapted to the receiver 4, the abutting portion 1111 abuts against the front end or the rear end of the receiver 4, and the elastic ejector 111 abuts against the receiver 4 so that the receiver 4 can be pushed out. The elastic ejector 111 is provided with the abutting portion 1111, and the elastic ejector 111 abuts against the receiver 4 through the abutting portion 1111, and the abutting portion 1111 abuts against the front end or the rear end of the receiver 4, so that the receiver 4 can be tilted in the mounting groove 11, so that the user can directly take out the entire receiver 4 by tilting the end of the receiver 4 on the outside, which is more convenient and labor-saving to use.

[0040] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A laser presenter pen, comprising a housing (1) and a cover, wherein a receiver (4) is installed between the housing (1) and the cover, characterized in that: The cover body comprises a first cover body (2) and a second cover body (3), the first cover body (2) being mounted on the shell (1), the second cover body (3) being detachably connected to the shell (1), the shell (1) being provided with a mounting groove (11) adapted to the receiver (4), the mounting groove (11) being located below the second cover body (3), the receiver (4) being mounted in the mounting groove (11), the mounting groove (11) being provided with an elastic ejector (111) adapted to the receiver (4), the elastic ejector (111) being arranged in the mounting groove (11) The ejector (111) contacts the receiver (4) and causes the receiver (4) to tilt in the mounting groove (11); when the second cover (3) and the mounting groove (11) are closed, the receiver (4) is pressed against the elastic ejector (111) by the second cover (3), and the receiver (4) is limited in the mounting groove (11); when the second cover (3) and the mounting groove (11) are separated, the receiver (4) is tilted by the elastic ejector (111), and a portion of the receiver (4) is exposed relative to the mounting groove (11).

2. The laser wireless presenter according to claim 1, characterized in that: A limiting protrusion (112) adapted to the receiver (4) is provided in the installation groove (11); one end of the receiver (4) is limited in the installation groove (11) by the limiting protrusion (112), and the other end of the receiver (4) is exposed outside the installation groove (11) by an elastic ejection piece (111).

3. The laser wireless presenter according to claim 2, characterized in that: The limiting protrusion (112) is in a straight line shape.

4. The laser wireless presenter according to claim 1, characterized in that: The second cover body (3) is slidably connected to the housing (1), and the second cover body (3) opens or closes the installation slot (11) by sliding.

5. The laser presenter according to claim 4, characterized in that: The second cover body (3) is provided with a first snap-fitting piece (31); a first snap-fitting groove (12) adapted to the first snap-fitting piece (31) is provided between the first cover body (2) and the housing (1); the second cover body (3) can be snapped into or out of the first snap-fitting piece (31) and the first snap-fitting groove (12) by sliding.

6. The laser wireless presenter according to claim 4, characterized in that: The second cover body (3) is provided with a slider (32), and the housing (1) is provided with a slide groove (13) adapted to the slider (32); the second cover body (3) is inserted into the slide groove (13) through the slider (32) and slides in the slide groove (13) to be slidably connected with the housing (1).

7. The laser wireless presenter according to claim 4, characterized in that: The second cover body (3) is provided with an anti-slip protrusion (33).

8. The laser wireless presenter according to claim 1, characterized in that: The cover body also includes a third cover body (5), the first cover body (2) and the second cover body (3) are installed on one side of the shell (1), and the third cover body (5) is installed on the other side of the shell (1), an installation cavity is formed between the third cover body (5) and the shell (1), and a plurality of button holes (51) are provided on the third cover body (5).

9. The laser wireless presenter according to claim 8, characterized in that: The second cover body (3) and the third cover body (5) are both connected to the shell (1) by means of snap fasteners, and the third cover body (5) is fixed to the shell (1) by means of bolts.

10. The laser wireless presenter according to claim 1, characterized in that: The elastic ejector (111) is provided with an abutment portion (111) adapted to the receiver (4), and the abutment portion (111) abuts against the front end or the rear end of the receiver (4).

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