Laser marking instrument

Abstract

The utility model provides a laser line marking instrument which comprises a machine shell, a swing body arranged in the machine shell, a laser fixed to the swing body, a first projection window installed on the machine shell and a lithium battery pack for supplying power to the laser, light generated by the laser is emitted out from the first projection window, the swing body is rotatably installed on the machine shell, and the lithium battery pack is used for an electric tool; the case comprises a containing cavity, the lithium battery pack is detachably assembled in the containing cavity, the lithium battery pack comprises an unlocking part, and the unlocking part is configured to release the assembling state of the lithium battery pack and the case; the lithium battery pack is provided with an exposed end face and a circumferential surface connected with the end face, when the lithium battery pack is assembled in the containing cavity, the end face and the circumferential surface do not protrude out of the outer contour of the machine shell, and the unlocking part is located in the outer contour of the machine shell. According to the laser marking instrument, power is supplied through the battery pack for the electric tool, the universality of the lithium battery pack can be further improved, the battery pack is completely located within the range of the outer contour of the machine shell, and the size cannot be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical instrument field, concretely relates to a laser line instrument. BACKGROUND

[0002] The laser line instrument is the light beam that laser emitted is projected to the far plane, projects into horizontal and / or vertical straight line. The traditional laser line instrument is by dry battery power supply, and the electric quantity of dry battery is small, and it is inconvenient to change soon. And lithium battery has the advantage that energy density is high, can provide longer endurance. Thus manufacturers built-in lithium battery in the laser line instrument, and power supply for laser. However, the cost of lithium battery is higher, if the tool in the working place all uses lithium battery power supply, undoubtedly brings very high cost. SUMMARY

[0003] The present application aims at overcoming the deficiencies in the prior art, and provides a low-cost laser line instrument.

[0004] The present application provides a kind of laser line instrument, including shell, the swing body in shell, the laser fixed in swing body, first projection window and lithium battery package for the laser power supply installed in shell, the light generated by the laser is shot from the first projection window, the swing body is rotatably installed in shell, and the lithium battery package is lithium battery package for electric tool;The shell includes accommodating cavity, and the lithium battery package is detachably assembled in accommodating cavity, and the lithium battery package includes unlocking portion, and the unlocking portion is configured to release the assembled state of lithium battery package and shell;The lithium battery package has exposed end face and connecting end face circumferential surface, when the lithium battery package is assembled in accommodating cavity, the end face and circumferential surface are not protruding from the outer contour of the shell, and the unlocking portion is located in the outer contour of the shell.

[0005] Further, the lithium battery package further includes locked portion, the shell includes locking portion in accommodating cavity, and the unlocking portion is configured to drive locked portion to release the locking state of locked portion and locking portion.

[0006] Further, the number of unlocking portion, locked portion and locking portion is two, and unlocking portion is formed on the circumferential surface of the lithium battery package.

[0007] Further, in the assembly direction of the lithium battery package, the ratio of the size of the exposed lithium battery package and the size of the lithium battery package is greater than 1 / 4 and less than 1 / 2.

[0008] Further, first projection window defines the projection area of light, and the lithium battery package is located outside the projection area.

[0009] Furthermore, the laser marking instrument includes a control component, which is configured to control the working state of the laser marking instrument. The control component is installed in the housing and is located between the lithium battery pack and the first projection window.

[0010] Furthermore, the laser marking instrument includes a second projection window and a third projection window, and the first projection window, the second projection window and the third projection window are respectively arranged on different side surfaces of the casing, and the side surfaces are arranged adjacent to each other.

[0011] Furthermore, the housing includes a grip portion, and the accommodating cavity is formed in the grip portion.

[0012] Furthermore, the center of gravity of the laser marking instrument is adjacent to the accommodating cavity.

[0013] The laser marking instrument of the present application is powered by a battery pack for electric tools, which is conducive to further improving the versatility of the lithium battery pack and reducing the cost of the laser marking instrument. At the same time, the battery pack is completely located within the outer contour of the casing, does not increase the size, and does not interfere with the use of the laser marking instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a laser marking instrument according to an embodiment of the present application.

[0015] Figure 2 for Figure 1 Rear view of the laser marking instrument.

[0016] Figure 3 for Figure 1 A perspective view of the laser marking instrument from a second angle is shown.

[0017] Figure 4 yes Figure 1 A three-dimensional image of the lithium battery pack of the laser marking instrument is shown.

[0018] Figure 5 for Figure 1 A third angle perspective view of the laser marking instrument is shown, wherein the lithium battery pack is not shown. DETAILED DESCRIPTION

[0019] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this application.

[0020] The terms used in the present application are merely for the purpose of describing specific embodiments and are not intended to limit the present application. Unless otherwise defined, technical terms or scientific terms used in the present application should be understood as having the common meaning in the field of the present application to which the skilled person has general knowledge. The terms "first", "second", and similar terms used in the present application do not represent any order, number, or importance, but are only used to distinguish different components. Similarly, the terms "one" or "a" and the like do not represent a quantity limitation, but represent the existence of at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, the terms "front", "back", "lower", and / or "upper" and the like are used for convenience only and are not intended to be limiting as to a particular position or spatial orientation. The terms "include" or "comprise" and the like are meant to be inclusive and to permit the inclusion of elements or objects not expressly listed, as well as equivalent thereof. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections or linkages, but also include electrical connections or linkages, whether direct or indirect. The singular forms "a", "an", and "the" used in the present application and the appended claims are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or", as used herein, refer to and encompass any or all possible combinations of one or more of the associated listed items.

[0021] Please refer to Figures 1 to 4 The embodiment of the present application provides a laser line instrument 100, which comprises a casing 1, a pendulum 2 arranged in the casing, a laser 3 fixed to the pendulum, a first projection window 51 mounted on the casing, and a lithium battery pack 4 for supplying power to the laser. The pendulum 2 is rotatably mounted on the casing 1 and is kept in a horizontal or vertical position by its own gravity or magnetic force. The light generated by the laser 3 is emitted from the first projection window 51 to form a horizontal or vertical reference line. The casing 1 comprises a base 1A and a cover 1B, which enclose a space for accommodating the pendulum 2 and the laser 3.

[0022] The first projection window 51 can be mounted on the casing 1 by a connecting member such as a screw. Optionally, a second projection window 52 and a third projection window 53 can also be provided, and the number of lasers corresponds to the number of projection windows. The first projection window 51, the second projection window 52, and the third projection window 53 are arranged on different side surfaces 101, 102, and 103 of the casing, respectively, and the side surfaces are arranged in pairs.

[0023] The machine shell 1 comprises a containing cavity 100, and the lithium battery pack 4 is detachably assembled in the containing cavity 100. Optionally, the lithium battery pack 4 comprises an unlocking portion 41 configured to release the assembly state of the lithium battery pack and the machine shell 1. Please refer to Figure 5 The containing cavity 100 is provided with a conductive contact 13 for electrically connecting the lithium battery pack 4 and the circuit board 7, and the circuit board is used to supply power to the laser 3.

[0024] In the application scenario of the laser line level (usually indoor building), electric tools such as electric drill, electric hammer, electric saw and the like are usually used. The lithium battery pack 4 is a lithium battery pack for electric tools, that is, the lithium battery pack 4 can supply power to the electric tools and the laser line level, so as to realize the maximum utilization of the lithium battery pack and reduce the cost of the laser line level.

[0025] Preferably, the lithium battery pack 4 has an exposed end surface 401 and a circumferential surface 402 connected with the end surface 401, and when the lithium battery pack is assembled in the containing cavity 100, the end surface 401 and the circumferential surface 402 are not protruded from the outer contour of the machine shell 1, and the unlocking portion 41 is located in the outer contour of the machine shell. That is, the assembly of the lithium battery pack does not increase the outer contour size, and the unlocking button is not easy to be mistakenly touched.

[0026] Please refer to Figure 5 The lithium battery pack further comprises a locked portion 42, and the machine shell 1 comprises a locking portion 11 located in the containing cavity. The locked portion 42 and the locked portion 11 are in snap-fit. Optionally, the unlocking portion 41 and the locked portion 42 are integrally formed, and the unlocking portion 41 is configured to drive the locked portion 42 to release the locking state of the locked portion 42 and the locking portion 11. Optionally, the number of the unlocking portion 41, the locked portion 42 and the locking portion 11 is two, and two unlocking portions 41 are formed on the circumferential surface of the lithium battery pack.

[0027] Optionally, in the assembly direction L of the lithium battery pack 4, the ratio of the exposed size of the lithium battery pack 4 to the size of the lithium battery pack is greater than 1 / 4 and less than 1 / 2, so as to ensure the heat dissipation of the lithium battery pack and avoid the interference caused by the excessive exposure of the lithium battery pack. Preferably, the lithium battery pack 4 is located in the projection area of the light defined by the first projection window 51, that is, the lithium battery pack does not affect the light at all.

[0028] The machine shell 1 comprises a holding portion 12, and the containing cavity 100 is located in the holding portion 12. Preferably, the gravity center of the whole laser line level is adjacent to the containing cavity, so that the gravity center of the whole laser line level is close to the holding portion, thereby obtaining a better holding feeling.

[0029] The laser leveling tool 100 further comprises a control assembly 6 configured to control the working state of the laser leveling tool, the control assembly 6 is installed on the casing and located between the lithium battery pack 4 and the first projection window 51.

[0030] Further modifications and alternative embodiments of various aspects of the application can be apparent to those skilled in the art in view of this description. Therefore, this description should not be construed as limiting. The configurations and arrangements depicted herein are merely illustrative. Although each novel feature has been described above with particular reference to certain embodiments, the scope of the present disclosure extends to other embodiments as well. Many modifications and variations of the described embodiments and applications of the concepts disclosed therein will be apparent to those skilled in the art from the foregoing description. Such modifications and variations are intended to fall within the scope of the applications. Accordingly, the description is to be construed as illustrative only and is for the purpose of teaching the general manner of carrying out the application. It is the intent of the inventors that references to claimed subject matter in this patent are in no way limited to the detailed description set forth herein. Various examples of the present disclosure have been described above with the intent of providing those skilled in the art with full disclosure and description. It is understood to those skilled in the art that certain details described herein can be used in certain examples while others can not be used in other examples. It is therefore intended that the description contemplates all possible modifications and alternatives in the present disclosure. It is intended that the scope of the application be defined by the following claims and their equivalents.

[0031] While the present application describes particular combinations of features in the claims appended hereto, various embodiments of the present application relate to any combination of any of the features described herein, whether presently claimed or not, and any such combination of features can be claimed in this application or in a future application. Any feature, element or component of any of the above-discussed example embodiments can be used alone or in combination with any other feature, element or component of any other of the above-discussed embodiments.

[0032] In various example embodiments, relative dimensions including angles, lengths and radii as shown in the drawings are drawn to scale. The actual measurements of the drawings will disclose relative dimensions, angles and proportions of various example embodiments. Various example embodiments extend to various ranges of absolute dimensions and relative dimensions, angles and proportions around which the various example embodiments can be scaled. Various example embodiments include any combination of one or more relative dimensions or angles as determined from the drawings. Further, actual dimensions not explicitly stated in this specification can be determined by using the scale of the dimensions measured in the drawings in combination with explicit dimensions stated in this specification.

Claims

1.A laser leveling tool, comprising a housing, a pendulum installed in the housing, a first projection window mounted on the housing, a laser fixed to the pendulum, and a lithium battery pack for powering the laser, wherein the laser generates a light beam which is projected from the first projection window, the pendulum is rotatably installed on the housing, and the lithium battery pack is a lithium battery pack for power tools; characterized in that: the housing comprises a receiving cavity, the lithium battery pack is detachably assembled in the receiving cavity, and the lithium battery pack comprises an unlocking portion configured to release the assembled state of the lithium battery pack and the housing; the lithium battery pack has an exposed end surface and a circumferential surface connected to the end surface, neither the end surface nor the side surface protrudes from the outer contour of the housing when the lithium battery pack is assembled in the receiving cavity, and the unlocking portion is located within the outer contour of the housing; the lithium battery pack comprises a locked portion, the housing comprises a locking portion located in the receiving cavity, and the unlocking portion is configured to drive the locked portion to release the locked state of the locked portion and the locking portion; the number of the unlocking portions is two, and the unlocking portions are formed on the circumferential surface of the lithium battery pack; in the assembly direction of the lithium battery pack, the ratio of the exposed size of the lithium battery pack to the size of the lithium battery pack is greater than 1 / 4 and less than 1 / 2; the first projection window defines a projection area of the light beam, and the lithium battery pack is located outside the projection area; the laser leveling tool comprises a control assembly configured to control the working state of the laser leveling tool, the control assembly is mounted on the housing and located between the lithium battery pack and the first projection window; the laser leveling tool comprises a second projection window and a third projection window, the first projection window, the second projection window, and the third projection window are respectively arranged on different side surfaces of the housing, and the side surfaces are arranged in pairs; the housing comprises a holding portion, and the receiving cavity is formed in the holding portion; the center of gravity of the laser leveling tool is adjacent to the receiving cavity. ​ ​ 2. The laser leveling tool of claim 1, wherein: ​ 3. The laser leveling tool of claim 2, wherein: ​ 4. The laser leveling tool of claim 3, wherein: ​ 5. The laser leveling tool of claim 1, wherein: ​ 6. The laser leveling tool of claim 1, wherein: ​ 7. The laser leveling tool of claim 6, wherein: ​ 8. The laser leveling tool of claim 1, wherein: ​ 9. The laser leveling tool of claim 8, wherein, ​

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