Laser pen

Abstract

The utility model provides a laser pen, and relates to the technical field of laser pens. The laser pen comprises a tube body and a base, the tube body is of a hollow structure, and the base is connected to the first end of the tube body to form a containing cavity; a laser diode for emitting a laser beam is arranged in the accommodating cavity, and the laser diode emits the laser beam from the second end of the tube body; the first end of the pipe body is provided with at least one through groove which is provided with a bent part, and one end of the through groove is communicated with the outside. The side wall of the base is provided with a protruding part corresponding to the through groove, and the protruding part can be clamped in the bent part of the through groove so that the base can be connected with the pipe body. According to the laser pen, through cooperation of the protruding part and the through groove, loosening and falling of the base and the tube body can be avoided, the connection stability of the base and the tube body is improved, and the assembly process of the base and the tube body is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of laser pens, and more particularly to a laser pen. Background Art

[0002] The exterior of a laser pen generally consists of three parts: a tube head, a tube body, and a tail cap. The tube head and the tail cap are respectively connected to opposite ends of the tube body. Inside the tube body, there are components such as a battery, a circuit board, and a laser diode that are electrically connected to each other. The laser diode is supplied with electrical energy by components such as the battery and the circuit board and emits a laser beam, which is emitted from the tube head.

[0003] In existing laser pens, the tail cap is usually threadedly connected to the tube body. However, this threaded connection method makes it easy for the tail cap to become loose from the tube body, resulting in the components inside the tube body being prone to falling off. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a laser pen that can prevent the base from becoming loose from and falling off the tube body, improve the connection stability between the base and the tube body, and has a simple and convenient assembly process.

[0005] The embodiments of the utility model are implemented as follows:

[0006] In one aspect of the utility model, a laser pen is provided, which includes a tube body and a base. The tube body has a hollow structure. The base is connected to the first end of the tube body to form a receiving cavity. Inside the receiving cavity, there is a laser diode for emitting a laser beam, and the laser beam is emitted from the second end of the tube body. At least one through groove is provided at the first end of the tube body. The through groove has a bending portion and one end is communicated with the outside. A protruding portion corresponding to the through groove is provided on the side wall of the base, and the protruding portion can be clamped inside the bending portion of the through groove to connect the base to the tube body.

[0007] Optionally, the through groove includes a first connecting groove and a second connecting groove that are connected to each other. The first connecting groove is arranged along the length direction of the tube body and one end is communicated with the outside. The second connecting groove is connected to the end of the first connecting groove away from the base to form a bending portion with a preset bending angle together with the first connecting groove.

[0008] Optionally, the bending angle of the bending portion is 90 degrees to 150 degrees.

[0009] Optionally, a counterbore is provided on the side walls of the tube body and the base along the stacking direction. The protruding portion includes a nut and a screw. The nut is clamped inside the counterbore, and the screw is screwed to the nut and protrudes from the side wall of the base.

[0010] Optionally, a counterbore is provided on the side walls of the tube body and the base along the stacking direction. The protruding portion includes a fixed end and an elastic telescopic rod. The fixed end is clamped inside the counterbore, and the end of the elastic telescopic rod is connected to the fixed end and protrudes from the side wall of the base.

[0011] Optionally, the laser pointer further includes a circuit component disposed in the accommodating cavity, and the circuit component is electrically connected to the laser diode; the circuit component includes a circuit board and a battery arranged in sequence in the accommodating cavity, and the circuit board and the battery are electrically connected.

[0012] Optionally, an insulating sleeve is sleeved on the outer wall of the battery, and an insulating sheet is provided at one end of the battery close to the base.

[0013] Optionally, an installation hole is provided on the side wall of the tube body, a switch button is installed in the installation hole, and the end of the switch button is connected to the circuit board to control the laser diode to emit or turn off the laser through the circuit board.

[0014] Optionally, the tube body includes a main body and a tube head. The main body has a hollow structure, and the laser diode is disposed in the main body; the base is connected to one end of the main body; the tube head is screwed to the end of the main body away from the base; an opening is provided at the end of the tube head away from the main body, and the laser emitted by the laser diode is emitted through the opening of the tube head.

[0015] Optionally, a connecting portion is provided at the end of the base away from the tube body, and a connecting hole is formed in the connecting portion for passing through an external accessory.

[0016] The beneficial effects of the present utility model include:

[0017] The present application provides a laser pointer, which includes a tube body and a base. The tube body has a hollow structure, and the base is connected to the first end of the tube body to form an accommodating cavity; a laser diode for emitting a laser beam is disposed in the accommodating cavity, and the laser beam emitted by the laser diode is emitted from the second end of the tube body; at least one through groove is provided at the first end of the tube body, the through groove has a bending portion and one end is communicated with the outside; a protruding portion corresponding to the through groove is provided on the side wall of the base. By simply rotating the base by a certain angle, the protruding portion can be clamped in the bending portion of the through groove to connect the base and the tube body. The laser pointer obtained by the above design can avoid the loosening and dropping of the base and the tube body through the cooperation of the protruding portion and the through groove, improves the connection stability between the base and the tube body, and also makes the assembly process of the base and the tube body simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 It is one of the structural schematic diagrams of the laser pointer provided by the embodiment of the present utility model;

[0020] Figure 2Schematic diagram of the base of the laser pointer provided by an embodiment of the present utility model;

[0021] Figure 3 Exploded view of the base of the laser pointer provided by an embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the body of the tube of the laser pointer provided by an embodiment of the present utility model;

[0023] Figure 5 Cross-sectional view of the laser pointer provided by an embodiment of the present utility model;

[0024] Figure 6 Second schematic diagram of the structure of the laser pointer provided by an embodiment of the present utility model;

[0025] Figure 7 Third schematic diagram of the structure of the laser pointer provided by an embodiment of the present utility model.

[0026] Icons: 100 - Laser pointer; 110 - Tube body; 1101 - Body; 1102 - Tube head; 1103 - Opening; 111 - Through groove; 1111 - First connection groove; 1112 - Second connection groove; 112 - Battery; 113 - Insulating sleeve; 114 - Insulating sheet; 115 - Mounting hole; 116 - Switch button; 120 - Base; 121 - Protrusion; 1211 - Nut; 1212 - Screw; 122 - Counterbore; 123 - Connecting part; 1231 - Connection hole. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0029] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", etc. do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Please refer to Figure 1 , this embodiment provides a laser pointer 100, which includes a tube body 110 and a base 120. The tube body 110 has a hollow structure. The base 120 is connected to the first end of the tube body 110 to form an accommodation cavity. A laser diode for emitting a laser beam is arranged in the accommodation cavity, and the laser diode emits the laser beam from the second end of the tube body 110. At least one through groove 111 is provided at the first end of the tube body 110. The through groove 111 has a bent portion and one end is communicated with the outside. A protruding portion 121 corresponding to the through groove 111 is provided on the side wall of the base 120. The protruding portion 121 can be clamped in the bent portion of the through groove 111 so that the base 120 is connected to the tube body 110.

[0034] Specifically, the present application provides a laser pen 100, which consists of a tube body 110 and a base 120. The tube body 110 is a hollow structure, so that the required parts can be placed. The shell thickness of the tube body 110 is 1 mm. The base 120 is detachably connected to one end of the tube body 110, so that the hollow structure inside the tube body 110 forms a closed accommodating cavity to prevent the internal parts from falling. A laser diode is arranged in the accommodating cavity, and the laser diode is used to emit a laser beam. An opening 1103 is arranged at one end of the tube body 110 away from the base 120, so that the laser diode can emit a laser beam from the end of the tube body 110 away from the base 120, which can be used for pet playing, teaching, speeches, etc.

[0035] At least one through groove 111 is provided at one end of the tube body 110 close to the base 120. The through groove 111 is a bent structure, one end of which is connected to the outside through the edge of the side wall of the tube body 110, and the other end has a bent portion; correspondingly, a protrusion 121 is protruded from the side wall of the base 120 toward the side wall of the tube body 110, and the protrusion 121 can extend into the through groove 111 through a side of the through groove 111 that is connected to the outside. When the protrusion 121 extends into the bent portion of the through groove 111, the base 120 is rotated so that the protrusion 121 is clamped in the bent portion of the through groove 111. At this time, the base 120 is clamped and fixed to the tube body 110.

[0036] Through the cooperation between the protrusion 121 and the base 120, the protrusion 121 needs to be rotated by a certain angle to be clamped in the bent portion of the through groove 111. After the protrusion 121 is clamped and fixed with the through groove 111, the base 120 cannot be directly pulled out of the tube body 110, but the tube body 110 and the base 120 must be rotated relative to each other by a preset angle to ensure that the protrusion 121 is separated from the bent portion of the through groove 111 before the tube body 110 and the base 120 can be separated, making the loading and unloading process relatively simple and easy to operate.

[0037] Existing laser pens usually connect the base and the tube body by means of a threaded connection, but the threaded connection method can easily cause the base and the tube body to loosen, causing the internal components to fall off; the present application can prevent the base 120 and the tube body 110 from loosening or falling off by cooperating with the through groove 111 of the tube body 110 and the protrusion 121 of the base 120, and at the same time eliminates the design of the threaded structure, making the structure of the tube body 110 simple and exquisite, with low precision requirements during production and manufacturing, and easy to produce.

[0038] It should be noted that the tube body 110 includes a main body 1101 and a tube head 1102. The main body 1101 has a hollow structure, and the laser diode is disposed inside the main body 1101; the base 120 is connected to one end of the main body 1101; the tube head 1102 is screwed to the end of the main body 1101 away from the base 120; an opening 1103 is provided at the end of the tube head 1102 away from the main body 1101, and the laser beam emitted by the laser diode exits through the opening 1103 of the tube head 1102.

[0039] Specifically, as Figure 1 and Figure 6 shown, the tube body 110 includes two parts, a main body 1101 and a tube head 1102. Among them, the main body 1101 has a hollow structure, the tube head 1102 is preferably a frustum structure, an opening 1103 is provided at the end of the head away from the main body 1101, and the laser beam emitted by the laser diode exits through the opening 1103 of the tube head 1102; preferably, the inner diameter of the opening 1103 is smaller than the inner diameter of the main body 1101 to improve the focusing effect of the laser beam. In an embodiment of the present application, the main body 1101 and the tube head 1102 can be an integral structure; in another embodiment, the tube head 1102 and the main body 1101 can be detachably connected, and the tube head 1102 can be screwed to the end of the main body 1101 away from the base 120. Of course, it can also be other detachable connection methods such as snap connection.

[0040] The present application provides a laser pointer 100, which includes a tube body 110 and a base 120. The tube body 110 has a hollow structure, and the base 120 is connected to the first end of the tube body 110 to form an accommodation cavity; a laser diode for emitting a laser beam is disposed in the accommodation cavity, and the laser beam is emitted from the second end of the tube body 110; at least one through groove 111 is provided at the first end of the tube body 110, the through groove 111 has a bent portion and one end is communicated with the outside; a protruding portion 121 corresponding to the through groove 111 is provided on the side wall of the base 120. By simply rotating the base 120 by a certain angle, the protruding portion 121 can be clamped in the bent portion of the through groove 111 to connect the base 120 to the tube body 110. The laser pointer 100 obtained by the above design can avoid the loosening and dropping of the base 120 and the tube body 110 through the cooperation of the protruding portion 121 and the through groove 111, improve the connection stability between the base 120 and the tube body 110, and also make the assembly process of the base 120 and the tube body 110 simple and convenient.

[0041] Further, the through groove 111 includes a first connection groove 1111 and a second connection groove 1112 connected to each other. The first connection groove 1111 is arranged along the length direction of the tube body 110 and one end is communicated with the outside, and the second connection groove 1112 is connected to the end of the first connection groove 1111 away from the base 120 to form a bent portion with a preset bending angle in connection with the first connection groove 1111.

[0042] Furthermore, the bending angle of the bent portion is 90 degrees to 150 degrees.

[0043] Specifically, as Figure 1 and Figure 4 shown, the through groove 111 includes a first connecting groove 1111 and a second connecting groove 1112, and the first connecting groove 1111 and the second connecting groove 1112 are connected to each other; the first connecting groove 1111 is arranged along the length direction of the pipe body 110, and one end of the first connecting groove 1111 communicates with the outside through the side wall edge of the pipe body 110, so that the protruding portion 121 can extend into the through groove 111 therefrom; the second connecting groove 1112 is connected to one end of the first connecting groove 1111 far from the base 120, and there is a certain bending angle between the second connecting groove 1112 and the first connecting groove 1111 to form a bent portion; the protruding portion 121 can extend into the through groove 111 from the side communicating with the outside of the first connecting groove 1111. When the protruding portion 121 extends to the bent portion where the first connecting groove 1111 and the second connecting groove 1112 are connected, the base 120 is rotated so that the protruding portion 121 is clamped in the bent portion of the second connecting groove 1112. At this time, the base 120 is clamped and fixed to the pipe body 110.

[0044] Among them, the bending angle of the bent portion is 90 degrees to 150 degrees. Preferably, as Figure 4 shown, the bending angle is 90 degrees, and the clamping and fixing effect is better.

[0045] In an implementable manner of the present application, a counterbore 122 is provided on the side walls of the pipe body 110 and the base 120 along the stacking direction. The protruding portion 121 includes a nut 1211 and a screw 1212. The nut 1211 is clamped in the counterbore 122, and the screw 1212 is screwed with the nut 1211 and protrudes from the side wall of the base 120.

[0046] Specifically, as Figure 2 and Figure 3 shown, a counterbore 122 is provided on the side walls of the pipe body 110 and the base 120 along the stacking direction. The counterbore 122 is used to arrange the protruding portion 121. The protruding portion 121 includes two parts, a nut 1211 and a screw 1212. Among them, the nut 1211 is clamped inside the counterbore 122, and one end of the screw 1212 is screwed with the nut 1211 and the other end protrudes from the side wall of the base 120, so as to be clamped in the through groove 111. Through the setting method of screwing the nut 1211 and the screw 1212, the connection of the protruding portion 121 is more stable;

[0047] In another implementable manner of the present application, a counterbore 122 is provided on the side walls of the pipe body 110 and the base 120 along the stacking direction. The protruding portion 121 includes a fixed end and an elastic telescopic rod. The fixed end is clamped in the counterbore 122, and the end of the elastic telescopic rod is connected to the fixed end and protrudes from the side wall of the base 120.

[0048] Specifically, a counterbore 122 is provided on the side walls of the tube body 110 and the base 120 along the stacking direction. The counterbore 122 is used to arrange the protruding portion 121. The protruding portion 121 includes a fixed end and an elastic telescopic rod. Among them, the fixed end is clamped in the counterbore 122, and one end of the elastic telescopic end is connected to a fixed point and the other end protrudes from the side wall of the base 120 so as to be clamped in the through groove 111. By setting the protruding portion 121 in an elastically telescopic form, during the process of assembling the base 120 to the tube body 110, the elastic telescopic end can be retracted under the pressure of the side wall of the tube body 110. At this time, the protruding portion 121 can reach the position of the bent portion of the through groove 111 without passing through the first connection groove 1111. When the protruding portion 121 reaches the second connection groove 1112, it is no longer under the pressure of the side wall of the tube body 110 and resets and protrudes to be engaged with the through groove 111. Such a setting method can further simplify the installation process of the base 120 and the tube body 110, without the need to relatively rotate the base 120 and the tube body 110, and the assembly process of the base 120 and the tube body 110 is simple and convenient.

[0049] The above two specific implementation manners of the protruding portion can both be connected to the tube body 110 through the counterbore 122. The counterbore 122 can play a role in orienting the protruding portion 121, and further improve the connection stability between the protruding portion 121 and the tube body 110 and the base 120.

[0050] Exemplarily, the laser pointer 100 further includes a circuit component disposed in the accommodating cavity, and the circuit component is electrically connected to the laser diode; the circuit component includes a circuit board and a battery 112 arranged in sequence in the accommodating cavity, and the circuit board and the battery 112 are electrically connected.

[0051] Specifically, the laser pointer 100 further includes a circuit component (not shown in the figure). The circuit component is disposed in the accommodating cavity of the tube body 110 and is electrically connected to the laser diode to control the working state of the laser diode. The circuit component includes a circuit board and a battery 112. The circuit board is electrically connected to the battery 112; the battery 112 is used to provide electrical energy for the laser diode, and the circuit board is used to control the working state of the laser diode. Preferably, the battery 112 can be a detachable button battery 112, and the battery 112 can be disposed on the side close to the base 120, and the battery 112 can be replaced by removing the base 120.

[0052] Further, an insulating sleeve 113 is sleeved on the outer wall of the battery 112, and an insulating sheet 114 is provided at one end of the battery 112 close to the base 120.

[0053] Specifically, as Figure 5As shown in the figure, an insulating sleeve 113 is sleeved on the outer wall of the battery 112. The insulating sleeve 113 can play roles such as insulating the battery 112, preventing external short - circuit of the battery 112, and preventing water seepage. An insulating sheet 114 is provided at one end of the battery 112 close to the base 120 to isolate the contact between the internal metal parts of the battery 112 and the external tube body 110 or other metal parts, thereby further improving the reliability of the laser pointer 100 in use.

[0054] Furthermore, an installation hole 115 is provided on the side wall of the tube body 110. A switch button 116 is installed in the installation hole 115. The end of the switch button 116 is connected to the circuit board to control the laser diode to emit or turn off the laser through the circuit board.

[0055] Specifically, as Figure 1 and Figure 4 shown in the figure, an installation hole 115 is provided on the side wall of the tube body 110. The installation hole 115 is used to install the switch button 116. The end of the switch button 116 is connected to the circuit board of the circuit component. By pressing the switch button 116, the working state of the laser diode can be controlled through the circuit board, so that the laser pointer 100 emits or turns off the laser. Of course, in addition to the push - type switch button 116, a toggle - type switch button 116 can also be set. The present application does not impose any restrictions on the specific usage mode of the switch button 116.

[0056] Furthermore, a connection part 123 is provided at the end of the base 120 far from the tube body 110. A connection hole 1231 is opened on the connection part 123. The connection hole 1231 is used for threading external accessories.

[0057] Specifically, as Figure 2 and Figure 7 shown in the figure, a connection part 123 is further provided at the end of the base 120 far from the tube body 110. A connection hole 1231 is opened on the connection part 123. The connection hole 1231 can thread external accessories such as keychains and lanyards to prevent the laser pointer 100 from falling.

[0058] The above are only optional embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0059] In addition, it should be noted that in the above - described specific embodiments, the various specific technical features described can be combined in any suitable way without contradiction. To avoid unnecessary repetition, the present utility model does not separately describe various possible combination methods.

Claims

1. A laser pen, characterized in that: The invention comprises a tube body (110) and a base (120), wherein the tube body (110) is of a hollow structure, and the base (120) is connected to the first end of the tube body (110) to form a receiving cavity; a laser diode for emitting a laser beam is arranged in the receiving cavity, and the laser diode emits the laser beam from the second end of the tube body (110); the first end of the tube body (110) is provided with at least one through groove (111), the through groove (111) having a bent portion and one end being connected to the outside; the side wall of the base (120) is provided with a protruding portion (121) corresponding to the through groove (111), and the protruding portion (121) can be clamped in the bent portion of the through groove (111) to connect the base (120) with the tube body (110).

2. The laser pointer according to claim 1, characterized in that: The through groove (111) comprises a first connecting groove (1111) and a second connecting groove (1112) which are connected to each other, wherein the first connecting groove (1111) is arranged along the length direction of the tube body (110) and one end of the first connecting groove (1111) is connected to an end of the first connecting groove (1111) away from the base (120) so as to be connected with the first connecting groove (1111) to form the bending portion having a preset bending angle.

3. The laser pointer according to claim 2, characterized in that: The bending angle of the bending portion is 90 degrees to 150 degrees.

4. The laser pointer according to claim 2, characterized in that: The side walls of the tube body (110) and the base (120) are provided with a countersunk hole (122) along the stacking direction; the protruding portion (121) comprises a nut (1211) and a screw (1212); the nut (1211) is clamped in the countersunk hole (122); the screw (1212) is threadedly connected to the nut (1211) and protrudes from the side wall of the base (120).

5. The laser pointer according to claim 2, characterized in that: The side walls of the tube body (110) and the base (120) are provided with a countersunk hole (122) along the stacking direction; the protruding portion (121) comprises a fixed end and an elastic telescopic rod; the fixed end is clamped in the countersunk hole (122); the end of the elastic telescopic rod is connected to the fixed end and protrudes from the side wall of the base (120).

6. The laser pointer according to claim 1, characterized in that: The laser pen (100) further comprises a circuit component arranged in the accommodating cavity, the circuit component being electrically connected to the laser diode; the circuit component comprises a circuit board and a battery (112) arranged in sequence in the accommodating cavity, the circuit board and the battery (112) being electrically connected.

7. The laser pointer according to claim 6, characterized in that: An insulating sleeve (113) is provided on the outer wall of the battery (112), and an insulating sheet (114) is provided on one end of the battery (112) close to the base (120).

8. The laser pointer according to claim 6, characterized in that: The side wall of the tube body (110) is provided with a mounting hole (115), a switch button (116) is installed in the mounting hole (115), and the end of the switch button (116) is connected to the circuit board so as to control the laser diode to emit or turn off laser through the circuit board.

9. The laser pointer according to claim 1, characterized in that: The tube body (110) comprises a main body (1101) and a tube head (1102); the main body (1101) is of a hollow structure, and the laser diode is arranged in the main body (1101); the base (120) is connected to one end of the main body (1101); the tube head (1102) is screwed to one end of the main body (1101) away from the base (120); an opening (1103) is provided at one end of the tube head (1102) away from the main body (1101), and laser light emitted by the laser diode is emitted through the opening (1103) of the tube head (1102).

10. The laser pointer according to claim 1, characterized in that: The base (120) is provided with a connecting portion (123) at the end away from the tube body (110), and a connecting hole (1231) is provided on the connecting portion (123), and the connecting hole (1231) is used for passing external accessories.

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