Laser demarcation device
By using the pendulum, the pendulum and the abutting parts to abut each other in the laser line projection instrument, the problem of unreliable connection between the pendulum and the pendulum is solved, a stable connection and the reliability of the electrical connection are achieved, and alarms are avoided. failure, improving the reliability of the equipment.
Patent Information
- Application Number
- CN202421083452.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In existing laser line projectors, the thread connection between the pendulum and the pendulum is unreliable, which can easily lead to loosening of the thread after being loaded for a long time, and the glue-coated reinforcement may cause the pendulum and the pendulum to be isolated, resulting in the alarm failure.
The pendulum, pendulum and abutting parts are used to abut each other, and the design of the mounting holes, connection holes and through holes ensures the stable connection of the pendulum and the pendulum, and electrical connection is achieved through conductive springs and adhesive layers , to avoid alarm failure.
The stable connection between the pendulum and the pendulum is achieved, ensuring the reliability of the electrical connection, avoiding the problem of alarm failure, and improving the reliability of the laser line projection instrument.
Smart Images
Figure CN222353188U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of measuring equipment, and specifically relates to a laser line projector. Background Art
[0002] A laser line projector can also be called a laser marking instrument or a laser level. A laser line projector can emit a laser beam and pass the laser beam through a prism light guide system to form a laser surface to project horizontal and vertical laser lines, ultimately achieving the purpose of measurement.
[0003] The laser line projector generally has a pendulum mechanism, and the vertical laser is installed on the pendulum mechanism to emit a vertical laser line. The pendulum mechanism generally includes a pendulum body and a pendulum installed at the bottom of the pendulum body. The pendulums in the laser line projectors on the market are currently connected to the pendulum body by threads. The threaded connection is unreliable. In daily work, the pendulum body is loaded for a long time, which will cause the threads to loosen. On this basis, there are also methods on the market to reinforce the threads with glue, but the gluing process may cause the pendulum body and the pendulum to be completely isolated (non-conductive), resulting in alarm failure.
[0004] Therefore, in view of the above technical problems, it is necessary to provide a laser projection device.
[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the application and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content
[0006] The purpose of the present application is to provide a laser line projector, which has a stably connected pendulum body and a pendulum and has a reliable alarm function.
[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the present application provides a laser projection device, comprising:
[0008] case;
[0009] A pendulum body, an axial end of which is provided with a mounting hole, and the pendulum body is movably mounted on the housing;
[0010] A pendulum, comprising a main body and a connecting part connected to each other, wherein the connecting part is located in the mounting hole and abuts against an inner wall of the mounting hole, and the main body abuts against the pendulum body to limit the movement of the pendulum along a first direction;
[0011] an abutment member, mounted on the pendulum body, wherein a portion of the abutment member is located in the mounting hole and abuts against the connecting portion to limit the movement of the pendulum along the second direction;
[0012] An optical component, mounted on the pendulum (1), the optical component comprising a horizontal laser and a vertical laser;
[0013] Wherein, the first direction and the second direction are both parallel to the axial direction of the pendulum, and the first direction is opposite to the second direction.
[0014] In one or more embodiments of the present application, the connecting portion has a first abutment surface, the first abutment surface is inclined, the first abutment surface is expanded along the second direction, and the abutment member abuts against the first abutment surface to limit the movement of the pendulum along the second direction.
[0015] In one or more embodiments of the present application, the main body has a second abutment surface facing the first direction, and the axial end of the pendulum body abuts against the second abutment surface to limit the movement of the pendulum along the first direction.
[0016] In one or more embodiments of the present application, a first adhesive layer is at least partially provided between the axial end of the pendulum body and the second abutting surface.
[0017] In one or more embodiments of the present application, the connecting hole communicated with the mounting hole is provided on the outer wall of the pendulum body, and the abutment member is plugged into the connecting hole.
[0018] In one or more embodiments of the present application, the connecting hole is threadedly connected to the abutment member.
[0019] In one or more embodiments of the present application, the connecting hole and the abutment member are interference fit.
[0020] In one or more embodiments of the present application, a second adhesive layer is at least partially provided between the connecting hole and the abutting member.
[0021] In one or more embodiments of the present application, a through hole is provided on the pendulum, and the laser emitted by the vertical laser can pass through the mounting hole and the through hole in sequence.
[0022] In one or more embodiments of the present application, a conductive spring is installed on the main body.
[0023] Compared with the prior art, the laser line projector of the present application realizes a stable connection between the pendulum body and the pendulum and ensures the electrical connection between the pendulum body and the pendulum through the mutual abutment and cooperation of the pendulum body, the pendulum and the abutment member. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0025] Figure 1 It is a front view of a laser line projector in one embodiment of the present application;
[0026] Figure 2 for Figure 1 Sectional view at AA in the middle;
[0027] Figure 3 A three-dimensional internal diagram of a laser line projector in one embodiment of the present application;
[0028] Figure 4 A partial cross-sectional view of a pendulum and a pendulum connection in one embodiment of the present application;
[0029] Figure 5 This is a front view of the interior of the laser projection device in one embodiment of the present application.
[0030] Description of main reference numerals:
[0031] 1. pendulum body; 11. mounting hole; 12. connecting hole; 2. pendulum; 21. main body; 211. second abutting surface; 212. conductive spring; 22. connecting part; 23. through hole; 221. first abutting surface; 3. abutting member; 4. shell; 41. base; 411. bracket; 42. outer shell; 5. controller. DETAILED DESCRIPTION
[0032] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of this application.
[0033] like Figures 1 to 5As shown, the laser line projector in one embodiment of the present application includes a shell 4, a pendulum body 1, a pendulum 2, an abutment member 3 and an optical component; a mounting hole 11 is opened at the axial end of the pendulum body 1; the pendulum 2 includes a main body 21 and a connecting portion 22 connected to each other, the connecting portion 22 is located in the mounting hole 11 and abuts against the inner wall of the mounting hole 11, and the main body 21 abuts against the pendulum body 1 to limit the movement of the pendulum 2 along the first direction; the abutment member 3 is installed on the pendulum body 1, and a part of the abutment member 3 is located in the mounting hole 11 and abuts against the connecting portion 22 to limit the movement of the pendulum 2 along the second direction; the optical component is installed on the pendulum body (1), and the optical component includes a horizontal laser and a vertical laser; wherein the first direction and the second direction are both parallel to the axial direction of the pendulum body 1, and the first direction is opposite to the second direction.
[0034] It can be understood that, through the mutual abutment between the pendulum body 1 and the pendulum 2, and the mutual abutment between the pendulum 2 and the abutment member 3, the relative movement of the pendulum body 1 and the pendulum 2 is limited in the first direction and the second direction; the connecting portion 22 of the pendulum 2 abuts against the inner wall of the mounting hole 11, and the relative movement of the pendulum body 1 and the pendulum 2 is limited in the plane perpendicular to the axial direction of the pendulum body 1; that is, through the mutual abutment between the pendulum body 1, the pendulum 2 and the abutment member 3, a stable connection between the pendulum body 1 and the pendulum 2 is achieved, and the abutment between the connecting portion 22 of the pendulum 2 and the inner wall of the mounting hole 11 can also ensure the electrical connection between the pendulum body 1 and the pendulum 2, thereby avoiding the alarm failure caused by insulation between the two.
[0035] It should be noted that if Figure 2 and Figure 3 As shown, a rectangular coordinate system is established, the first direction is parallel to the Z-axis direction; the plane perpendicular to the axial direction of the pendulum 1 can be considered as a plane formed by the X-axis direction and the Y-axis direction, or the plane perpendicular to the axial direction of the pendulum 1 can be considered as a plane parallel to the X-axis direction and the Y-axis direction. Moving along the first direction is moving toward the first direction; moving along the second direction is moving toward the second direction.
[0036] like Figure 4 As shown, the connecting portion 22 has a first abutting surface 221, which is inclined and expanded along the second direction. The abutting member 3 abuts against the first abutting surface 221 to limit the movement of the pendulum 2 along the second direction. That is, one end of the abutting member 3 abuts against the first abutting surface 221, and the second direction can be considered as Figure 2 In the downward direction.
[0037] It is understandable that the size of the connecting portion 22 gradually increases along the first direction, that is, in this embodiment, the connecting portion 22 can be considered as an inverted frustum structure, and the first abutting surface 221 can be considered as an inverted cone surface; such a design facilitates the processing and forming of the pendulum 2.
[0038] Preferably, the abutment members 3 can be multiple and installed at intervals on the circumference of the pendulum body 1. Such an arrangement can more evenly abut against the pendulum 2 along the circumference of the pendulum body 1 to prevent the pendulum body 1 from swinging.
[0039] In this embodiment, the main body 21 has a second abutting surface 211 facing the first direction, and the axial end of the pendulum body 1 abuts against the second abutting surface 211 to limit the movement of the pendulum 2 along the first direction. Figure 4 The top surface of the middle main body 21 is the second abutting surface 211 , and the axial end of the pendulum body 1 is the end surface of the bottom of the pendulum body 1 .
[0040] Furthermore, a first adhesive layer (not shown in the figure) is at least partially provided between the axial end of the pendulum body 1 and the second abutting surface 211. The first adhesive layer can be formed by common glue or adhesive on the market, and mainly plays the role of bonding the pendulum body 1 and the main body 21 to enhance the stability of the connection.
[0041] like Figure 4 As shown, a connection hole 12 communicating with the mounting hole 11 is provided on the outer wall of the pendulum body 1, and the abutment member 3 is plugged into the connection hole 12, thereby achieving the installation of the abutment member 3 and the pendulum body 1.
[0042] In this embodiment, the connection hole 12 is threadedly connected to the abutment member 3, which facilitates the installation and removal of the abutment member 3. At this time, the abutment member 3 can be regarded as a screw.
[0043] In other embodiments, the connection hole 12 and the abutment member 3 are interference fit, thereby achieving a stable connection between the abutment member 3 and the pendulum body 1 .
[0044] In any of the above embodiments, a second adhesive layer is at least partially provided between the connection hole 12 and the abutment member 3. The second adhesive layer can be formed by common glue or adhesive on the market, and mainly plays the role of bonding the pendulum body 1 and the abutment member 3 to enhance the stability of the connection.
[0045] In this embodiment, a through hole 23 is provided on the pendulum 2, and the laser emitted by the vertical laser can pass through the mounting hole 11 and the through hole 23 in sequence.
[0046] The laser line projector also includes a controller 5 mounted on the housing 4. The housing 4 may include a base 41 and a shell 42 connected to each other, a bracket 411 is mounted on the base 41, the pendulum 1 may be movably mounted on the bracket 411, and the controller 5 may be fixedly mounted on the bracket 411.
[0047] The pendulum 1, the pendulum 2, the bracket 411 and the base 41 are all made of common conductive materials, such as metal. The controller 5 can be electrically connected to the pendulum 1 and the bracket 411 respectively. During the use of the laser line projector, the pendulum 2 is separated from the base 41, and the controller 5 will not issue an alarm signal; when the laser line projector is placed at a large tilt angle, the pendulum 2 swings under the action of gravity and counteracts the base 41, so that the pendulum 1, the pendulum 2, the bracket 411, the base 41 and the controller 5 form a conductive path. At this time, the controller 5 will issue an alarm signal to remind the user that when the laser line projector is placed at an angle that is too tilted and exceeds the swing range of the pendulum 2, the laser emitted by the vertical laser is not vertically downward.
[0048] Among them, two conductive wires or conductive threads can be connected to the controller 5 respectively, and the two conductive wires or conductive threads are respectively connected (electrically connected) to the bracket 411 and the pendulum body 1.
[0049] Furthermore, a conductive spring 212 is installed on the main body 21. The conductive spring 212 can play the role of conduction and buffering. When the laser line projector is placed at a large tilt angle, the pendulum 2 swings under the action of gravity, and the conductive spring 212 thereon abuts against the base 41, thereby avoiding the pendulum 2 directly colliding with the base 41 during the swinging process, causing damage to the components.
[0050] Preferably, a groove for mounting the conductive spring 212 may be formed on the outer peripheral wall of the main body 21 , and the groove may play a role in positioning and limiting the conductive spring 212 .
[0051] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A laser projection device, characterized in that: include: Housing (4); A pendulum body (1) having a mounting hole (11) at an axial end thereof, and the pendulum body (1) is movably mounted on the housing (4); The pendulum (2) comprises a main body (21) and a connecting part (22) connected to each other, wherein the connecting part (22) is located in the mounting hole (11) and abuts against the inner wall of the mounting hole (11), and the main body (21) abuts against the pendulum body (1) to limit the movement of the pendulum (2) along a first direction; an abutment member (3) mounted on the pendulum body (1), wherein a portion of the abutment member (3) is located in the mounting hole (11) and abuts against the connecting portion (22) to limit the movement of the pendulum (2) along the second direction; An optical component is mounted on the pendulum (1), wherein the optical component comprises a horizontal laser and a vertical laser; wherein the first direction and the second direction are both parallel to the axial direction of the pendulum (1), and the first direction is opposite to the second direction.
2. The laser line projector according to claim 1, characterized in that: The connecting portion (22) has a first abutting surface (221), the first abutting surface (221) is arranged to be inclined, the first abutting surface (221) is arranged to be expanded along the second direction, and the abutting member (3) abuts against the first abutting surface (221) to limit the movement of the pendulum (2) along the second direction.
3. The laser line projector according to claim 1, characterized in that: The main body (21) has a second abutment surface (211) facing the first direction, and the axial end of the pendulum body (1) abuts against the second abutment surface (211) to limit the movement of the pendulum (2) along the first direction.
4. The laser line projector according to claim 3, characterized in that: A first adhesive layer is at least partially provided between the axial end of the pendulum body (1) and the second abutment surface (211).
5. The laser line projector according to claim 1, characterized in that: A connecting hole (12) communicating with the mounting hole (11) is provided on the outer wall of the pendulum body (1), and the abutment member (3) is plugged into the connecting hole (12).
6. The laser line projector according to claim 5, characterized in that: The connecting hole (12) is threadedly connected to the abutment member (3).
7. The laser line projector according to claim 5, characterized in that: The connecting hole (12) and the abutment member (3) are interference fit.
8. The laser line projector according to any one of claims 5 to 7, characterized in that: A second adhesive layer is at least partially provided between the connection hole (12) and the abutment member (3).
9. The laser line projector according to claim 1, characterized in that: The pendulum (2) is provided with a through hole (23), and the laser light emitted by the vertical laser can sequentially pass through the mounting hole (11) and the through hole (23).
10. The laser line projector according to claim 9, characterized in that: A conductive spring (212) is installed on the main body (21).