Laser demarcation device movement and laser demarcation device

Abstract

The utility model discloses a laser demarcation device movement and a laser demarcation device. The laser demarcation device movement comprises a support, a pendulum body assembly, a shaft body assembly and a leveling assembly. The swing body assembly is arranged in the bracket and is spaced from the bracket; the shaft body assembly is installed in the swing body assembly in a penetrating mode, and the end of the shaft body assembly is rotationally installed in the support. The leveling assembly comprises a metal sheet and a magnet assembly arranged at a gap between the metal sheet, one of the metal sheet and the magnet assembly is installed on the pendulum body assembly, and the other one is installed on the support. The movement of the laser demarcation device is simple in structure, the pendulum body assembly can be rapidly and accurately assembled and disassembled through the modularized design, the assembling steps are simplified, and the assembling time is saved; meanwhile, through the principle that a metal sheet cuts magnetic induction lines to generate Lorentz force, automatic leveling of the pendulum body assembly is achieved, and the time for achieving the balance state is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser line projectors, and in particular relates to a laser line projector core and a laser line projector. Background Art

[0002] Laser line projector, also known as laser marking instrument or laser level, is a device that uses laser to emit a specific route for measurement through photoelectric control. It can project one or more accurate horizontal or vertical lines, and is mainly used to measure distance, angle and alignment, etc. It has the characteristics of high efficiency, accuracy and convenience. At present, laser line projectors are widely used in construction engineering, surveying and mapping engineering, equipment installation, interior and exterior decoration and other fields. It usually uses laser lines to accurately project horizontal and vertical reference lines onto the work object, so that workers can refer to this reference line during the construction process without deviating from the expected position.

[0003] In order to accurately project the reference line onto the work object, the laser line projectors currently on the market need to be leveled before use to ensure the line projection accuracy. However, the current movement structure is complex, the assembly process is cumbersome, the manufacturing cost is high, and the assembly accuracy is low, which makes the leveling process time-consuming and laborious, and it takes a long time for the movement to reach a balanced state.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a laser line projector movement and a laser line projector, which can simplify the movement structure, improve assembly accuracy, and reduce leveling time.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A laser line projector core, the laser line projector core comprising:

[0008] Bracket;

[0009] A pendulum assembly is disposed in the bracket and is spaced apart from the bracket;

[0010] A shaft assembly is installed through the pendulum assembly, and an end of the shaft assembly is rotatably installed in the bracket;

[0011] A leveling component comprises a metal sheet and a magnet component arranged in a gap between the metal sheets, one of the metal sheet and the magnet component is mounted on the pendulum assembly, and the other is mounted on the bracket.

[0012] In one or more embodiments of the present invention, the pendulum assembly includes a pendulum arranged in the bracket, a first laser and a second laser arranged relatively at the upper and lower sides of the pendulum along the Z-axis direction, a third laser arranged at one side of the pendulum along the X-axis direction, and a fourth laser arranged at the other side of the pendulum along the Y-axis direction and located next to the third laser, and the shaft assembly is installed through the pendulum.

[0013] In one or more embodiments of the present invention, the shaft assembly includes a first shaft arranged along the X-axis direction and a second shaft arranged along the Y-axis direction, one of the first shaft and the second shaft is installed through the other, both ends of the first shaft are rotatably installed on the bracket through a first bearing, and both ends of the second shaft are rotatably installed on the bracket through a second bearing.

[0014] In one or more embodiments of the present invention, the shaft assembly further includes a fixing member, and the fixing member is installed in the first shaft body and the second shaft body along the Z-axis direction.

[0015] In one or more embodiments of the present invention, the bracket includes a base, a ring plate located above the base, and a plurality of connecting rods arranged between the base and the ring plate, at least one connecting rod connects the base and the ring plate, and the pendulum assembly is installed on the ring plate.

[0016] In one or more embodiments of the present invention, the laser line projector movement also includes a locking assembly, which includes a locking block installed on the connecting rod, and an elastic member arranged between the locking block and the base, and the elastic member has a tendency to make the locking block move toward the ring plate. In the first state, the locking block abuts against the pendulum assembly, and in the second state, the locking block is separated from the pendulum assembly.

[0017] In one or more embodiments of the present invention, the laser projection instrument movement further includes a switch element, wherein in a first state, the switch element is disconnected, and in a second state, the switch element is turned on; and / or,

[0018] The laser projection instrument movement also includes a knob arranged between the pendulum assembly and the locking block, and the knob is used to transform the locking device from the first state to the second state.

[0019] In one or more embodiments of the present invention, a through hole is provided on the base, and the laser projection instrument movement also includes a buffer ring installed in the through hole, and the buffer ring is sleeved on the outside of the pendulum assembly and has a gap with the pendulum assembly.

[0020] In one or more embodiments of the present invention, the laser projection device movement also includes a main control circuit board installed on the bracket, a pendulum circuit board installed on the pendulum assembly, and a flexible circuit board electrically connecting the main control circuit board and the pendulum circuit board.

[0021] Another specific embodiment of the present invention provides a technical solution as follows:

[0022] A laser line projector, comprising the laser line projector core as described above.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The utility model provides a laser line projector movement and a laser line projector. The laser line projector movement has a simple structure. Through modular design, the pendulum assembly can be installed and disassembled quickly and accurately, which simplifies the assembly steps and saves assembly time. At the same time, through the principle of Lorentz magnetic force generated by metal sheets cutting magnetic flux lines, automatic leveling of the pendulum assembly is achieved to reduce the time taken to reach a balanced state. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the laser line projection device in the first embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the main structure of the laser line projection device in the first embodiment of the utility model;

[0028] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0029] Figure 4 This is a schematic diagram of the structure of the shaft assembly in the first embodiment of the utility model;

[0030] Figure 5 for Figure 1 The cross-sectional structure diagram of the middle BB in the first state with the lower part facing west;

[0031] Figure 6 for Figure 1 The cross-sectional structure diagram of the middle BB in the second state with the lower part facing west;

[0032] Figure 7 for Figure 1 Schematic diagram of the cross-sectional structure at CC in the middle. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] It should be noted that the “X-axis direction” in this application text is the Figure 1 The X-axis direction is marked in the figure, and the Y-axis direction is marked in the figure. Figure 1 The Y-axis is marked in the direction, and the Z-axis is marked in the direction. Figure 1 The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] The technical solution of the present utility model will be described below in conjunction with the accompanying drawings.

[0038] Reference Figure 1 to Figure 4 As shown, the laser projection device in this embodiment includes: a bracket 1, a pendulum assembly 2, a shaft assembly 3, and a leveling assembly 4.

[0039] Among them, the pendulum body assembly 2 is arranged in the bracket 1 and is set with a gap between it and the bracket 1; the shaft assembly 3 is installed through the pendulum body assembly 2, and the end of the shaft assembly 3 is rotatably installed in the bracket 1; the leveling assembly 4 includes a metal sheet 41 installed on the pendulum body assembly 2 and a magnet assembly 42 installed on the bracket 1 and set with a gap between it and the metal sheet 41.

[0040] The laser line projector in this embodiment has a simple movement structure. Through modular design, the pendulum assembly 2 can be installed and disassembled quickly and accurately, which simplifies the assembly steps and saves assembly time. At the same time, through the principle of Lorentz magnetic force generated by the metal sheet 41 cutting the magnetic lines of flux, the pendulum assembly 2 can be automatically leveled to reduce the time required to reach a balanced state.

[0041] Of course, in other embodiments, the metal sheet can be installed on the bracket, and the magnet assembly can be installed on the pendulum assembly.

[0042] Specifically, refer to Figure 1 , Figure 2 ,and Figure 5 As shown, the pendulum assembly 2 in this embodiment includes a pendulum 21 arranged in the bracket 1, a first laser 22 and a second laser 23 arranged relatively at the upper and lower sides of the pendulum 21 along the Z-axis direction, a third laser 24 arranged at one side of the pendulum 21 along the X-axis direction, and a fourth laser 25 arranged at the other side of the pendulum 21 along the Y-axis direction and located next to the third laser 24, and the shaft assembly 3 is installed through the pendulum 21. According to this design, through the shaft assembly 3, the pendulum assembly 2 can rotate around an axis to achieve the effect of automatic leveling. After the laser line projector is fully leveled, when it is necessary to project the reference line on the work object, any one of the required first laser 22, second laser 23, third laser 24, and fourth laser 25 can be turned on. Among them, the first laser 22, the second laser 23, the third laser 24, and the fourth laser 25 all protrude from the bracket 1 to avoid being affected by the bracket 1 during the line projection process.

[0043] Reference Figure 2 to Figure 4 As shown, the shaft assembly 3 in this embodiment includes a first shaft 31 arranged along the X-axis direction and a second shaft 32 arranged along the Y-axis direction. One of the first shaft 31 and the second shaft 32 is installed through the other, and both ends of the first shaft 31 are rotatably installed on the bracket 1 through the first bearing 33, and both ends of the second shaft 32 are rotatably installed on the bracket 1 through the second bearing 34.

[0044] For example, refer to Figure 2 , Figure 3As shown, the second shaft body 32 in this embodiment is installed through the first shaft body 31, the first shaft body 31 can be rotatably installed on the bracket 1 through the first bearing 33, and the second shaft body 32 can be rotatably installed on the bracket 1 through the second bearing 34. When the pendulum assembly 2 rotates around the first shaft body 31 (i.e., rotates along the X-axis direction) until the pendulum assembly 2 stops rotating around the X-axis direction, the pendulum assembly 2 is parallel to the XOZ plane, and when the pendulum assembly 2 rotates around the second shaft body 32 (i.e., rotates along the Y-axis direction) until the pendulum assembly 2 stops rotating around the Y-axis direction, the pendulum assembly 2 is parallel to the YOZ plane. When the pendulum assembly 2 neither rotates along the X-axis direction nor rotates along the Y-axis direction, the pendulum assembly 2 is vertically arranged.

[0045] Of course, in other embodiments, the first shaft body 31 may be installed through the second shaft body 32 .

[0046] In order to prevent the first shaft body 31 and the second shaft body 32 from being offset along the X-axis or Y-axis direction, refer to Figure 3 , Figure 4 As shown, the shaft assembly 3 in this embodiment also includes a fixing member 35, which is installed in the first shaft body 31 and the second shaft body 32 along the Z-axis direction. The fixing member 35 can be a structure such as a pin, a screw, a bolt, etc. for fastening two parts. According to this design, not only can the assembly accuracy be improved, but also the adverse effect on the movement leveling during the movement leveling process can be prevented.

[0047] The bracket 1 in this embodiment includes a base 11, a ring plate 12 located above the base 11, and a plurality of connecting rods 13 disposed between the base 11 and the ring plate 12, at least one connecting rod 13 connects the base 11 and the ring plate 12, and the pendulum assembly 2 is mounted on the ring plate 12. Exemplarily, the laser line projector movement in this embodiment includes four connecting rods 13, wherein the two ends of three connecting rods 13 are respectively connected to the base 11 and the ring plate 12, and the lower end of the last connecting rod 13 is mounted on the base 11, and the upper end is arranged toward the ring plate 12.

[0048] Of course, in other embodiments, the number of the connecting rods may be 3, 5, or greater than 5.

[0049] Specifically, the pendulum body 21 in this embodiment is installed on the ring plate 12 through the first shaft body 31 and the second shaft body 32. At the same time, since bearings are provided on both ends of the first shaft body 31 installed on the ring plate 12, the first shaft body 31 can rotate on the ring plate 12 along the X-axis direction. Since the shaft assembly 3 is fixedly installed in the pendulum body 21, the pendulum body 21 can rotate along the X-axis direction; similarly, the shaft assembly 3 can also rotate along the Y-axis direction.

[0050] The existing laser line projector on the market still has the problem of the pendulum assembly 2 shaking when not in use, which is likely to affect the service life and line projection function of the laser line projector itself.

[0051] Therefore, in order to solve the above problems, refer to Figure 5 , Figure 6 As shown, the laser projection device in this embodiment further includes a locking assembly 5, which includes a locking block 51 mounted on the connecting rod 13, and an elastic member 52 disposed between the locking block 51 and the base 11, and the elastic member 52 is sleeved on the connecting rod 13. The elastic member 52 has a tendency to make the locking block 51 move toward the ring plate 12. In the first state, the locking block 51 abuts against the pendulum 21 in the pendulum assembly 2, and in the second state, the locking block 51 is separated from the pendulum 21 in the pendulum assembly 2. Among them, the elastic member 52 can be a spring or an airbag or other elastic structure.

[0052] According to this design, when no external force is applied to the locking block 51, the laser line projector is in the first state, and under the action of the elastic member 52, the locking block 51 abuts against the pendulum 21, thereby achieving the best effect of locking the pendulum assembly 2; when the pendulum 21 in the pendulum assembly 2 needs to be automatically leveled, it is necessary to apply external force to the laser line projector to put it in the second state, that is, to apply external force to the locking block 51 so that it overcomes the elastic force applied by the elastic member 52 and moves toward the base 11, and finally separates the locking block 51 from the pendulum 21 in the pendulum assembly 2 to facilitate the rotation of the pendulum 21 around the X-axis and / or Y-axis.

[0053] Reference Figure 2 , Figure 5 , Figure 6 As shown, the laser projection device in this embodiment further includes a switch 6, which is disposed on the base 11. In the first state, the switch 6 is disconnected, and in the second state, the switch 6 is turned on. According to this design, only in the second state can the first laser 22, the second laser 23, the third laser 24, and the fourth laser 25 emit lasers and project lines onto the work object.

[0054] In order to facilitate the application of external force to the locking block 51, refer to Figure 5 , Figure 6 As shown, the laser projection device in this embodiment also includes a knob 7 disposed between the pendulum assembly 2 and the locking block 51, and the knob 7 is used to convert the locking device from the first state to the second state. The knob 7 includes a main body 71 located outside the pendulum assembly 21 and the locking block 51 and an inserting portion 72 inserted into the gap between the pendulum assembly 21 and the locking block 51, the length of the inserting portion 72 is greater than the distance of the gap, and the width of the inserting portion 72 is less than the distance of the gap.

[0055] In the first state, the length direction of the plug-in portion 72 is parallel to the length direction of the gap, and the upper and lower surfaces of the plug-in portion 72 are respectively separated from the pendulum body 21 and the locking block 51. In the second state, the operator rotates the main body 71 to drive the plug-in portion 72 to rotate, so that the length direction of the plug-in portion 72 is no longer parallel to the length direction of the gap, and the ends of the plug-in portion 72 are respectively in contact with the pendulum body 21 and the locking block 51 and the plug-in portion 72 drives the locking block 51 to move toward the base 11, so that the locking block 51 is separated from the pendulum assembly 2.

[0056] Preferably, refer to Figure 6 , Figure 7 As shown, the base 11 in this embodiment is provided with a through hole 111, and the laser line projector movement also includes a buffer ring 8 installed in the through hole 111, and the buffer ring 8 is sleeved outside the pendulum assembly 2 and is provided with a gap with the pendulum assembly 2. According to this design, it can play a shock-absorbing role, prevent the pendulum 21 and the second laser 23 from being damaged or damaged by impact during the leveling process, and increase the service life of the laser line projector movement.

[0057] The main control circuit board 91 and the pendulum circuit board 92 in the laser line projector movement need to be connected with a signal line. At present, most of the laser line projector movements on the market use 4 to 5 enameled copper wires with a diameter of about 0.05mm to 0.08mm as signal lines for connection. This connection method is not only easy to cause the signal line to break or be damaged, but also because the signal line has tension, it is easy to be affected by the tension when it breaks, causing the pendulum assembly 2 to shift in position, thereby reducing the accuracy of the laser line projector.

[0058] To solve the above problems, refer to Figure 1 , Figure 2 As shown, the laser line projector movement in this embodiment also includes a main control circuit board 91 installed on the bracket 1, a pendulum body circuit board 92 installed on the pendulum body assembly 2, and a flexible circuit board 93 electrically connecting the main control circuit board 91 and the pendulum body circuit board 92. Exemplarily, an FPC flexible circuit board 93 is used in this embodiment, and the thickness of the flexible circuit board 93 is only 0.06 mm. The flexible circuit board 93 is arranged in the space inside the bracket 1 and does not occupy the external space of the laser line projector movement, making the structure more compact. In addition, since the flexible circuit board 93 can produce slight deformation with the force, it is not easy for the pendulum body assembly 2 to be offset, and the impact on the accuracy of the laser line projector movement is also minimal, which can improve the overall use accuracy of the laser line projector movement.

[0059] Embodiment 2:

[0060] The laser line projector in this embodiment includes the laser line projector core in Embodiment 1. The laser line projector has a simple structure, simple assembly steps, and a short assembly time, and can enable the core to be automatically leveled quickly and accurately.

[0061] It can be seen from the above technical solutions that the utility model has the following beneficial effects:

[0062] The utility model provides a laser line projector movement and a laser line projector. The laser line projector movement has a simple structure. Through modular design, the pendulum assembly can be installed and disassembled quickly and accurately, which simplifies the assembly steps and saves assembly time. At the same time, through the principle of Lorentz magnetic force generated by metal sheets cutting magnetic flux lines, automatic leveling of the pendulum assembly is achieved to reduce the time taken to reach a balanced state.

[0063] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention 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 invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0064] 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 instrument movement, characterized in that: The laser projection instrument core comprises: Bracket; A pendulum assembly is disposed in the bracket and is spaced apart from the bracket; A shaft assembly is installed through the pendulum assembly, and an end of the shaft assembly is rotatably installed in the bracket; A leveling component comprises a metal sheet and a magnet component arranged in a gap between the metal sheets, one of the metal sheet and the magnet component is mounted on the pendulum assembly, and the other is mounted on the bracket.

2. The laser projection device according to claim 1, characterized in that: The pendulum assembly includes a pendulum arranged in the bracket, a first laser and a second laser arranged relatively at the upper and lower sides of the pendulum along the Z-axis direction, a third laser arranged at one side of the pendulum along the X-axis direction, and a fourth laser arranged at the other side of the pendulum along the Y-axis direction and located next to the third laser, and the shaft assembly is installed through the pendulum.

3. The laser projection device according to claim 1, characterized in that: The shaft assembly includes a first shaft arranged along the X-axis direction and a second shaft arranged along the Y-axis direction. One of the first shaft and the second shaft is installed through the other. Both ends of the first shaft are rotatably installed on the bracket through a first bearing, and both ends of the second shaft are rotatably installed on the bracket through a second bearing.

4. The laser projection device according to claim 3, characterized in that: The shaft assembly also includes a fixing member, which is installed in the first shaft body and the second shaft body through the Z-axis direction.

5. The laser projection device according to claim 1, characterized in that: The bracket includes a base, a ring plate located above the base, and a plurality of connecting rods arranged between the base and the ring plate, at least one connecting rod connects the base and the ring plate, and the pendulum assembly is installed on the ring plate.

6. The laser projection device according to claim 5, characterized in that: The laser projection instrument movement also includes a locking assembly, which includes a locking block installed on the connecting rod, and an elastic member arranged between the locking block and the base, and the elastic member has a tendency to make the locking block move toward the ring plate. In the first state, the locking block abuts against the pendulum assembly, and in the second state, the locking block is separated from the pendulum assembly.

7. The laser line projection device according to claim 6, characterized in that: The laser projection device movement further comprises a switch element, wherein in a first state, the switch element is disconnected, and in a second state, the switch element is turned on; and / or, The laser projection instrument movement also includes a knob arranged between the pendulum assembly and the locking block, and the knob is used to transform the locking assembly from the first state to the second state.

8. The laser projection device according to claim 5, characterized in that: The base is provided with a through hole, and the laser projection instrument movement also includes a buffer ring installed in the through hole. The buffer ring is sleeved on the outside of the pendulum assembly and a gap is set with the pendulum assembly.

9. The laser projection device according to claim 1, characterized in that: The laser projection instrument movement also includes a main control circuit board installed on the bracket, a pendulum circuit board installed on the pendulum assembly, and a flexible circuit board electrically connecting the main control circuit board and the pendulum circuit board.

10. A laser projection device, characterized in that: The laser line projector comprises a laser line projector core as described in any one of claims 1 to 9.

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