A laser positioning guide for electrical utility installations

Abstract

The application relates to the field of laser measuring instruments, and discloses a laser positioning and guiding device for power facility installation, which comprises an outer shell, the upper surface of the outer shell is provided with a fixing assembly, and the inner wall is provided with a light emitting assembly and a light blocking assembly. The light emitting assembly has a gravity self-alignment structure and can automatically maintain a vertical posture; the fixing assembly is in transmission connection with the light blocking assembly and is used for linkage adjustment of the spatial posture of the assembly, so that the switching between horizontal and vertical detection states is realized. When the outer shell is inclined along with the power facility, the light blocking assembly is synchronously inclined, so that the light blocking assembly and the light emitting assembly which always maintains a vertical posture are relatively displaced, and the color of the emitted laser light is changed through a light blocking plate with a gradually changing color. Through the gradual change of the laser color from green to red, the inclination degree and direction of the device are intuitively fed back, the operator can accurately calibrate without close reading, and the device can be self-adapted to various installation surface scenes, so that the construction efficiency and positioning precision are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of laser measuring instrument technology, specifically a laser positioning and guiding device for the installation of power facilities. Background Technology

[0002] During the installation and construction of power facilities (such as distribution boxes, control cabinets, transformer supports, and various wall-mounted devices), the levelness and verticality of the equipment are key indicators to ensure the safe operation of the power system and the convenience of subsequent maintenance. Currently, construction personnel typically use traditional bubble levels, plumb bobs, or conventional laser levels with independent supports when positioning and calibrating the installation.

[0003] However, existing technologies have the following significant shortcomings in practical engineering applications: Traditional bubble levels require operators to be very close to the equipment surface to observe the bubble's movement. When working at heights, installing suspended equipment, or in confined spaces, operators often struggle to obtain a good viewing angle, making readings inconvenient, prone to visual errors, and increasing safety hazards associated with working at heights.

[0004] Commercially available stand-alone laser levels are typically mounted on a tripod or nearby ground, with the projected baseline separate from the electrical installation. During drilling, fastening, or fine-tuning of the installation, changes in the installation's posture cannot be synchronously fed back in real time by the external laser line. This often leads to a tedious cycle of measurement, adjustment, and re-measurement, significantly reducing installation efficiency.

[0005] Existing portable positioning tools are mostly single-function and cannot quickly and adaptively switch between vertical and horizontal projection modes according to the specific installation contact surface of the power facility. More importantly, when the facility tilts during installation, existing laser positioning equipment can only display the offset of the line position, lacking a mechanism that can provide operators with intuitive, long-distance, and progressive error feedback. This makes it difficult for workers to quickly determine the direction and severity of the tilt, increasing the difficulty of precise fine-tuning. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a laser positioning and guidance device for the installation of power facilities, solving the problem of the lack of a guidance device in the prior art that can provide operators with intuitive, long-distance, and progressive error feedback.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A laser positioning and guiding device for power facility installation includes a housing. The upper surface of the housing is provided with a fixing component for connecting to the power facility to be installed. The inner wall of the housing is provided with a laser-emitting component and a laser-blocking component. The laser-emitting component emits laser light to assist in calibrating the installation position of the power facility and has a self-aligning structure that automatically maintains its vertical orientation under gravity. The laser-blocking component is drivenly connected to the fixing component, and the fixing component can adjust the spatial orientation of the laser-blocking component in conjunction with the laser-emitting component. Both the fixing component and the laser-emitting component are provided with a horizontal detection state and a vertical detection state. When the housing tilts along with the power facility, the laser-blocking component tilts synchronously with the housing, causing a relative displacement between it and the always vertical laser-emitting component, thereby changing the color of the laser emitted by the laser-emitting component.

[0008] Preferably, the light-emitting component includes a fixed rod, the upper end of which is mounted on the inner wall of the housing via a universal joint; a sliding sleeve is fitted onto the outer wall of the fixed rod, and a counterweight is fixedly connected to the lower end of the sliding sleeve; a through groove is provided on the outer wall of the sliding sleeve, and a fixing frame is fitted onto the outer wall of the sliding sleeve, the fixing frame passing through the through groove and fixedly connected to the fixed rod, and a laser emitter is rotatably connected to the outer wall of the fixing frame.

[0009] Preferably, a sliding frame is fixedly connected to the top of the sliding sleeve, and the fixed frame and the sliding frame are elastically connected by a return spring; a sliding groove is provided on the outer wall of the sliding frame, and an extension frame is slidably fitted on the inner wall of the sliding groove, and the extension frame is fixedly connected to the outer wall of the laser emitter; when the counterweight moves the sliding sleeve and the sliding frame downward, the sliding groove squeezes the extension frame, causing the laser emitter to rotate at an angle.

[0010] Preferably, the outer wall of the sliding sleeve is fixedly connected to a sliding sleeve, and the outer wall of the sliding sleeve is slidably connected to an insert block; the outer wall of the fixing rod is provided with a slot for accommodating the insert block; the insert block and the sliding sleeve are elastically connected by a locking spring, and the insert block can be inserted into the slot under the push of the locking spring to lock the position of the sliding sleeve and the counterweight.

[0011] Preferably, the light-blocking assembly includes a fixed base fixedly connected to the upper surface of the outer shell. The inner wall of the fixed base is rotatably connected to multiple sets of transmission rods. The multiple sets of transmission rods are arranged in an array with the center line of the outer shell as the axis of rotation. Adjacent sets of transmission rods are connected by a bevel gear set. A fixed arm is vertically fixedly connected to the top of the inner wall of the fixed base. A swing arm is rotatably connected to the outer wall of the fixed arm. A rotating wheel is fixedly connected to the outer wall of the rotating shaft of the swing arm. The rotating wheel is connected to the transmission rod by a belt drive.

[0012] Preferably, an extension arm is slidably connected through the inner wall of the swing arm, and a light-blocking plate is fixedly connected to the end of the extension arm away from the fixed arm; a protrusion is fixedly connected to the outer wall of the extension arm, and the protrusion is slidably connected through the outer wall of the swing arm; a guide groove is provided on the inner wall of the outer casing, and the protrusion slides in the inner wall of the guide groove.

[0013] Preferably, the light-blocking plate is a transparent acrylic plate, with a colorless and transparent center, and the color gradually deepens to red from the center to the top and bottom ends; the light-blocking plate is placed in the optical path of the light-emitting component.

[0014] Preferably, the fixing assembly includes a rotating seat and a support seat fixedly connected to the upper surface of the outer casing; the rotating seat has a swing frame hinged inside, and the side of the rotating seat away from the outer casing is connected by a ball joint to a magnetic suction plate for adsorbing onto the surface of the power facility; the outer wall of the rotating shaft between the swing frame and the rotating seat is connected to one of the sets of transmission rods via a belt.

[0015] Preferably, the support base is located at the center position near the upper surface of the outer shell and is used to support the swing frame in a horizontal state; a positioning plate is slidably connected through the upper surface of the rotating base, and the positioning plate is elastically connected to the inner wall of the rotating base through a positioning spring; the surface of the swing frame is provided with a positioning groove that matches the positioning plate; a locking nut is threadedly connected to the outer wall of the rotating shaft of the rotating base and the swing frame.

[0016] Preferably, the outer side wall and the lower end of the outer casing are provided with openings, and the openings of the outer side wall are provided with observation windows; multiple sets of levels are installed on the upper end of the outer casing; the fixing frame is configured in a cross shape, and its outer wall is simultaneously connected to four sets of laser emitters capable of emitting strip lasers.

[0017] The present invention has the following beneficial effects: 1. This invention employs a gravity-based self-aligning structure using a universal joint and counterweights to ensure the beam projection component maintains a constant absolute reference. Combined with a transparent light-blocking plate whose color gradually deepens towards the edges, when the power facility tilts, the light-blocking plate, which rotates with the outer casing, creates a relative displacement with the stationary beam, causing the projected light color to gradually change from green to red. Construction personnel no longer need to closely examine the level bubble; they can quickly determine the direction and degree of tilt simply by observing the differences in the color intensity of the surrounding laser light, greatly reducing the difficulty of reading measurements in complex environments.

[0018] 2. This invention uses a fixed swing frame as a single adjustment source, constructing a precision transmission network through belts, transmission rods, and bevel gear sets. The operator only needs to adjust the swing frame according to the installation surface of the facility to simultaneously trigger the rotation of the light-blocking component and the attitude rotation of the laser emitter. This mechanism allows the device to seamlessly switch between a "vertical detection state" (projecting a reference line to the ground) and a "horizontal detection state" (projecting a circular line to the wall), flexibly adapting to different construction environments and effectively solving the problem of the single function of traditional tools.

[0019] 3. When switching modes, the light-blocking component utilizes the sliding engagement between the protrusion and the guide groove of the outer shell to force the extension arm to adaptively extend and retract, precisely avoiding spatial interference and collision between the light-blocking plate and the laser emitter during rotation. Furthermore, the system incorporates an axial locking mechanism consisting of a plug and a dual-position slot, as well as a vibration feedback mechanism consisting of a positioning plate and a positioning groove. This provides a clear tactile feel for adjustment and ensures that all components are absolutely locked during operation, preventing measurement inaccuracies caused by construction vibrations. Attached Figure Description

[0020] Figure 1 This is a perspective view of the horizontal detection state of the present invention; Figure 2 This is a schematic diagram of the vertical detection state of the present invention; Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4 This is a schematic diagram of the vertical detection state of the light-emitting component of the present invention; Figure 5 This is a schematic diagram of the horizontal detection state of the light-emitting component of the present invention; Figure 6 This is a schematic diagram showing the disassembled light-emitting component of the present invention; Figure 7 This is a schematic diagram of the horizontal detection state of the light-blocking component of the present invention; Figure 8 This is a schematic diagram of the vertical detection state of the light-blocking component of the present invention; Figure 9 This is a bottom view of the outer casing of the present invention; Figure 10 This is a schematic diagram of the vertical detection state of the fixing component of the present invention; Figure 11 This is a schematic diagram showing the disassembled components of the present invention.

[0021] in: 1. Outer casing; 2. Level; 3. Observation window; 4. Light-blocking assembly; 41. Fixing base; 42. Transmission rod; 43. Bevel gear set; 44. Fixing arm; 45. Rotating wheel; 46. Swing arm; 47. Light-blocking plate; 48. Extension arm; 49. Protrusion; 410. Guide groove; 5. Fixing component; 51. Support base; 52. Rotating base; 53. Swing frame; 54. Magnetic suction plate; 55. Ball joint; 56. Locking nut; 57. Positioning plate; 58. Positioning groove; 59. Positioning spring; 6. Beam emitter assembly; 61. Fixing frame; 62. Sliding frame; 63. Universal joint; 64. Sliding sleeve; 65. Return spring; 66. Counterweight; 67. Laser emitter; 68. Extension frame; 69. Slide groove; 610. Through groove; 611. Sliding sleeve; 612. Insert block; 613. Fixing rod; 614. Slot; 615. Locking spring. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please see the appendix Figure 1 - Appendix Figure 11 This invention provides a laser positioning and guiding device for power facility installation, comprising a housing 1 for supporting the entire device. Openings are provided on the outer wall and lower end of the housing 1 to facilitate light emission. Multiple sets of spirit levels 2 are installed on the upper end of the housing 1 to measure the levelness of the entire device. A fixing component 5 is provided on the upper surface of the housing 1 to connect the device to the power facility to be installed. An observation window 3 is provided on the outer wall to close the openings on the outer wall of the housing 1. A light-emitting component 6 and a light-blocking component 4 are provided on the inner wall of the housing 1. The light-emitting component 6 emits laser light to assist the operator in calibrating the installation position of the power facility, while the light-blocking component 4 modulates the position of the light-emitting component. The laser color emitted by component 6 helps the operator determine whether the power facility is level. Both the light-blocking component 4 and the light-emitting component 6 have two states: horizontal detection state and vertical detection state, corresponding to two usage scenarios of the device. When the entire device is installed on the side of the power facility, it needs to be adjusted to the vertical detection state. At this time, the device will project four lasers vertically downward to form a rectangular pattern, which is convenient for installation work when there are no walls or other reference objects nearby. When the entire device is installed on the top or bottom surface of the power facility, it needs to be adjusted to the horizontal detection state. At this time, the device will emit lasers in all directions and project a horizontal rectangular pattern on the wall surface, which is convenient for installation work when there are walls or other reference objects nearby.

[0024] The light-emitting component 6 includes a fixed rod 613. The upper end of the fixed rod 613 is mounted on the inner wall of the outer casing 1 via a universal joint 63, allowing the lower end of the fixed rod 613 to swing freely inside the outer casing 1. A sliding sleeve 64 is fitted onto the outer wall of the fixed rod 613, and a counterweight 66 is fixedly connected to the lower end of the sliding sleeve 64. The counterweight 66 provides gravity to keep the fixed rod 613 perpendicular to the ground. A through groove 610 is provided on the outer wall of the sliding sleeve 64, and a fixing frame 61 is fitted onto the outer wall of the sliding sleeve 64. The fixing frame 61 passes through the through groove 610 and is fixedly connected to the fixed rod 613. A laser emitter 67 is rotatably connected to the outer wall of the fixing frame 61. The laser emitter 67 emits laser light. In this embodiment, the laser emitter 67 emits a strip laser when working, which can project a strip pattern on the ground or wall. In this embodiment, the laser emitted by the transmitter 67 is set to green for easy viewing by the operator. The fixing frame 61 is cross-shaped to facilitate the simultaneous connection of multiple laser transmitters 67. The top of the sliding sleeve 64 is fixedly connected to the sliding frame 62. The outer wall of the sliding frame 62 is provided with a groove 69, and the inner wall of the groove 69 is slidably connected to the extension frame 68. The extension frame 68 is fixedly connected to the outer wall of the laser transmitter 67. With this configuration, when the counterweight 66 moves downward, it will drive the sliding frame 62 to move downward synchronously through the sliding sleeve 64. The downward movement of the sliding frame 62 can cause the laser transmitter 67 to rotate by squeezing the extension frame 68 through the groove 69. The fixing frame 61 and the sliding frame 62 are elastically connected by a return spring 65. The return spring 65 can drive the sliding frame 62 to move upward and reset by applying force to the sliding frame 62.

[0025] A sliding sleeve 611 is fixedly connected to the outer wall of the sliding sleeve 64. A plug 612 is slidably connected through the outer wall of the sliding sleeve 611. When the counterweight 66 moves up and down, it will drive the sliding sleeve 611 and the plug 612 to move up and down synchronously through the sliding sleeve 64. The outer wall of the fixing rod 613 is provided with a slot 614 for accommodating the plug 612. The plug 612 and the sliding sleeve 611 are elastically connected by a locking spring 615. When the plug 612 moves down and aligns with the slot 614, the plug 612 can be inserted into the slot 614 under the push of the locking spring 615, thus connecting the fixing rod 613 and the plug 612. At the same time, the sliding sleeve 611 and the counterweight 66 will be fixed and cannot move further. If it is necessary to move upward to reset the sliding frame 62, the plug 612 must be moved first to disengage it from the slot 614 before the counterweight 66 can be moved.

[0026] The light-blocking assembly 4 includes a fixed base 41, which is fixedly connected to the upper surface of the outer shell 1. A transmission rod 42 is rotatably connected through the inner wall of the fixed base 41. Multiple sets of fixed bases 41 and transmission rods 42 are arranged in a rotating array with the center line of the outer shell 1 as the rotation axis. Adjacent sets of transmission rods 42 are connected by a bevel gear set 43. Thus, when one set of transmission rods 42 rotates, multiple sets of transmission rods 42 will rotate synchronously. A fixed arm 44 is fixedly connected to the top of the inner wall of the fixed base 41. The fixed arm 44 is vertically fixedly connected to the inside of the outer shell 1 and moves synchronously with the outer shell 1. A swing arm 46 is rotatably connected to the outer wall of the fixed arm 44. The rotation axis of the swing arm 46 passes through the outer wall of the fixed arm 44, so that the swing arm 46 can rotate around the rotation axis. At the same time, a rotating wheel 45 is fixedly connected to the outer wall of the rotation axis of the swing arm 46. The rotating wheel 45 is connected to the transmission rod 42 by a belt drive, so that the rotation of the transmission rod 42 can be driven by the rotation of the transmission rod 42. The rotating arm 46 is rotated to adjust the posture of the light-blocking component 4. An extension arm 48 is slidably connected through the inner wall of the swing arm 46. A light-blocking plate 47 is fixedly connected to the end of the extension arm 48 away from the fixed arm 44. The light-blocking plate 47 is used to change the laser color. The light-blocking plate 47 is a transparent acrylic plate that is colorless and transparent at the center. From the center to the top and bottom, the color gradually deepens to red. Thus, when the laser passes through the center of the light-blocking plate 47, the laser will be emitted in green. When the laser passes through the red area on the surface of the light-blocking plate 47, the laser will be emitted in orange. As the tilt angle between the laser emitter 67 and the light-blocking plate 47 increases, the laser color will continue to deepen. Thus, when installing power facilities, the operator can judge the tilt angle between the power facilities and the ground by observing the laser color. Since multiple sets of lasers can be interchanged without interference, the tilt direction of the device can be judged by observing the colors of multiple sets of lasers simultaneously.

[0027] A protrusion 49 is fixedly connected to the outer wall of the extension arm 48. The protrusion 49 passes through and is slidably connected to the outer wall of the swing arm 46. By moving the protrusion 49, the light-blocking plate 47 can be moved closer to or away from the swing arm 46. The inner wall of the outer shell 1 is provided with a guide groove 410. The protrusion 49 slides on the inner wall of the guide groove 410. When the swing arm 46 swings up and down under the drive of the rotating wheel 45, the protrusion 49 will be squeezed by the inner wall of the guide groove 410 and slide, thereby causing the protrusion 49 and the swing arm 46 to move relative to each other, controlling the light-blocking plate 47 to move closer to or away from the swing arm 46, so as to prevent the light-blocking plate 47 from colliding with the laser emitter 67 during rotation.

[0028] The fixing component 5 includes a support base 51 and a rotating base 52. The rotating base 52 is fixedly connected to the upper surface of the outer casing 1. A swing frame 53 is hinged inside the rotating base 52, and the swing frame 53 can swing around the connection point with the rotating base 52. A magnetic plate 54 is connected to the side of the rotating base 52 away from the outer casing 1 through a ball joint 55. The magnetic plate 54 is magnetic and can be attracted to the surface of the power facility. In specific implementations, the magnetic plate 54 can also be replaced with an adhesive plate or a flat plate with bolt holes to adapt to different installation conditions. The ball joint 55 and the swing frame 53 are interference fit. When there is an angle between the outer casing 1 and the power facility, the magnetic plate 54 and the swing frame 53 can be adjusted. The tilt angle is controlled by the tilt angle of the overall device to ensure that the outer shell 1 and the power facilities are tilted synchronously. The outer wall of the rotating shaft of the swing frame 53 and the rotating seat 52 is threaded with a locking nut 56. By rotating the locking nut 56, the rotating shaft between the swing frame 53 and the rotating seat 52 can be locked, so that the swing frame 53 is locked. The outer wall of the rotating shaft between the swing frame 53 and the rotating seat 52 is connected to one of the transmission rods 42 by a belt. Therefore, when the swing frame 53 rotates from top to bottom to a horizontal state, the swing frame 53 will drive the transmission rod 42 to rotate through the belt. The transmission rod 42 will drive the swing arm 46, the extension arm 48 and the light shield 47 to rotate to a horizontal state through the rotating wheel 45.

[0029] The support base 51 is fixedly connected to the upper surface of the outer shell 1 near the center. When the swing frame 53 rotates to a horizontal state, the support base 51 can support the swing frame 53. The upper surface of the rotating seat 52 is slidably connected to the positioning plate 57. The positioning plate 57 is elastically connected to the inner wall of the rotating seat 52 through the positioning spring 59, so that the positioning plate 57 can slide up and down. The surface of the swing frame 53 is provided with a positioning groove 58 that matches the positioning plate 57. So when the operator adjusts the rotation angle of the swing frame 53, the vibration generated by the positioning plate 57 being inserted into the positioning groove 58 can be used to judge the rotation state of the swing frame 53.

[0030] Working Principle: This device achieves working mode switching through the swing frame 53 of the fixed component 5. The switching process is automatically completed by the internal purely mechanical linkage system. The axial rotation of the swing frame 53 is transmitted to the transmission rod 42 via a belt, and then synchronously drives each set of rotating wheels 45 through the bevel gear set 43, causing the light-blocking component 4 to swing around the axis as a whole, so that the spatial position and orientation of the light-blocking plate 47 inside the outer shell 1 are adjusted synchronously. During the adjustment process, the positioning plate 57 automatically engages with the corresponding positioning groove 58 on the surface of the swing frame 53 under the elastic force of the positioning spring 59, generating clear physical damping and vibration feedback, ensuring that the adjustment action accurately stops at the preset horizontal or vertical detection position, and at the same time completing the mechanical positioning and locking of all linkage components.

[0031] When the device is in vertical detection mode, the beam-emitting component 6 completes vertical positioning in a vertically downward posture. At this time, the sliding sleeve 64 is located at the upper end of the fixed rod 613, and the sliding frame 62 is kept in a high position under the tension of the return spring 65. All laser emitters 67 are in a vertically downward emission posture. The counterweight 66 drives the fixed rod 613 to automatically align itself through the universal joint 63 by its own weight, which can automatically compensate for the initial installation tilt error of the power facility body and the outer shell 1. Under the action of the above linkage mechanism, the beam-blocking component 4 rotates synchronously to the vertical position, and each beam-blocking plate 47 moves exactly to the underside of the corresponding laser emitter 67. After the laser beam passes through the colorless and transparent area at the axis of the beam-blocking plate 47, it is emitted from the opening at the bottom of the outer shell 1, projecting a regular rectangular light spot on the ground, providing accurate vertical projection coordinates and lateral installation alignment reference for high-altitude operations without wall reference objects.

[0032] When the device switches to the horizontal detection state, the beam-emitting assembly 6 completes the attitude conversion from vertical to horizontal. During operation, first, move the insert 612 to disengage it from the slot 614, releasing the axial lock of the sliding sleeve 64. Then, under external force, pull the counterweight 66 downwards along with the sliding sleeve 64. The sliding frame 62 moves downwards synchronously with the sliding sleeve 64, and the groove 69 on its inner wall exerts a lateral squeezing force on the extension frame 68 on the outer wall of the laser emitter 67. After overcoming the elastic force of the return spring 65, it drives all laser emitters 67 to rotate synchronously around the fixed frame 61 to a horizontal position. Once in position, releasing the insert 612 re-locks the assembly. Simultaneously, the beam-blocking assembly 4 rotates synchronously to the horizontal position under the linkage of the transmission rod 42, and each beam-blocking plate 47 precisely cuts into the optical path of the corresponding horizontal laser. The laser beam is emitted through the observation window 3 on the side wall of the outer casing 1, projecting a closed horizontal rectangular projection onto the surrounding wall surface, providing a precise elevation alignment reference for installation scenarios with wall references.

[0033] If an angular deviation occurs during the installation of power facilities, it will cause the outer casing 1 to tilt synchronously. At this time, a relative displacement occurs between the beam-emitting component 6 and the beam-blocking component 4, resulting in intuitive visual error feedback. Since the beam-emitting component 6 adopts a suspended structure, its laser projection axis always remains absolutely horizontal or vertical under the gravity of the counterweight 66; while the beam-blocking component 4 and the beam-blocking plate 47 are rigidly connected to the outer casing 1 and tilt synchronously with the outer casing 1. This relative movement causes the laser beam to deviate from the transparent center area of ​​the beam-blocking plate 47 and enter the red gradient area at the edge. The color of the projected laser then gradually changes from green to red, and the degree of color deepening is positively correlated with the tilt angle of the outer casing 1. During the attitude adjustment and swinging process of the beam-blocking component 4, the protrusion 49 slides relative to the guide groove 410 on the inner wall of the outer casing 1, forcibly driving the extension arm 48 to adaptively extend and retract, which can effectively avoid spatial interference or collision between the beam-blocking plate 47 and the laser emitter 67.

[0034] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to describe the invention and not to require the invention to be constructed or operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" in this invention should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms based on the specific circumstances.

[0035] The above description represents the preferred mode of operation of the present invention. The specific operational modes are provided solely for a better understanding of the invention's concept. Those skilled in the art can make various improvements or equivalent substitutions based on the principles of this invention, and these improvements or equivalent substitutions are also considered to fall within the scope of protection of this invention.

Claims

1. A laser positioning guide for electrical utility installation, characterized by, Includes an outer shell (1), the upper surface of which is provided with a fixing component (5) for connecting to the electrical facility to be installed, and the inner wall of the outer shell (1) is provided with a light-emitting component (6) and a light-blocking component (4). The laser-emitting component (6) is used to emit laser light to assist in calibrating the installation position of power facilities, and has a self-aligning structure that automatically maintains its vertical orientation under gravity. The light-blocking component (4) is connected to the fixing component (5) in a transmission manner, and the fixing component (5) can adjust the spatial posture of the light-blocking component (4) in a linkage manner. Both the fixing component (5) and the light-emitting component (6) are provided with a horizontal detection state and a vertical detection state; when the outer shell (1) tilts with the power facility, the light-blocking component (4) tilts synchronously with the outer shell (1), so that it generates a relative displacement with the light-emitting component (6) which always remains vertical, so as to change the color of the laser emitted by the light-emitting component (6).

2. The laser positioning and guiding device for power facility installation as described in claim 1, characterized in that, The light-emitting component (6) includes a fixing rod (613), the upper end of which is mounted on the inner wall of the outer casing (1) via a universal joint (63); a sliding sleeve (64) is sleeved on the outer wall of the fixing rod (613), and a counterweight (66) is fixedly connected to the lower end of the sliding sleeve (64); a through groove (610) is provided on the outer wall of the sliding sleeve (64), and a fixing frame (61) is sleeved on the outer wall of the sliding sleeve (64). The fixing frame (61) passes through the through groove (610) and is fixedly connected to the fixing rod (613). A laser emitter (67) is rotatably connected to the outer wall of the fixing frame (61).

3. A laser positioning and guiding device for power facility installation as described in claim 2, characterized in that, The top of the sliding sleeve (64) is fixedly connected to a sliding frame (62), and the fixed frame (61) and the sliding frame (62) are elastically connected by a return spring (65); the outer wall of the sliding frame (62) is provided with a sliding groove (69), and the inner wall of the sliding groove (69) is slidably fitted with an extension frame (68), and the extension frame (68) is fixedly connected to the outer wall of the laser emitter (67); when the counterweight (66) drives the sliding sleeve (64) and the sliding frame (62) to move downward, the sliding groove (69) squeezes the extension frame (68) and drives the laser emitter (67) to rotate at an angle.

4. A laser positioning and guiding device for power facility installation as described in claim 3, characterized in that, The outer wall of the sliding sleeve (64) is fixedly connected to a sliding sleeve (611), and the outer wall of the sliding sleeve (611) is slidably connected to an insert (612); the outer wall of the fixing rod (613) is provided with a slot (614) for accommodating the insert (612); the insert (612) and the sliding sleeve (611) are elastically connected by a locking spring (615), and the insert (612) can be inserted into the slot (614) under the push of the locking spring (615) to lock the position of the sliding sleeve (64) and the counterweight (66).

5. A laser positioning and guiding device for power facility installation as described in claim 1, characterized in that, The light-blocking component (4) includes a fixed seat (41) fixedly connected to the upper surface of the outer shell (1). The inner wall of the fixed seat (41) is rotatably connected to multiple sets of transmission rods (42). The multiple sets of transmission rods (42) are arranged in an array with the center line of the outer shell (1) as the axis of rotation. Adjacent sets of transmission rods (42) are connected by a bevel gear set (43). A fixed arm (44) is vertically fixedly connected to the top of the inner wall of the fixed seat (41). A swing arm (46) is rotatably connected to the outer wall of the fixed arm (44). A rotating wheel (45) is fixedly connected to the outer wall of the rotating shaft of the swing arm (46). The rotating wheel (45) is connected to the transmission rod (42) by a belt drive.

6. A laser positioning and guiding device for power facility installation as described in claim 5, characterized in that, An extension arm (48) is slidably connected through the inner wall of the swing arm (46), and a light-blocking plate (47) is fixedly connected to one end of the extension arm (48) away from the fixed arm (44); a protrusion (49) is fixedly connected to the outer wall of the extension arm (48), and the protrusion (49) is slidably connected through the outer wall of the swing arm (46); a guide groove (410) is provided on the inner wall of the outer shell (1), and the protrusion (49) slides in the inner wall of the guide groove (410).

7. A laser positioning and guiding device for power facility installation as described in claim 6, characterized in that, The light-blocking plate (47) is a transparent acrylic plate with a colorless and transparent center. The color gradually deepens to red from the center to the top and bottom ends. The light-blocking plate (47) is placed in the light path of the light-emitting component (6).

8. A laser positioning and guiding device for power facility installation as described in claim 5, characterized in that, The fixing component (5) includes a rotating seat (52) and a support seat (51) fixedly connected to the upper surface of the outer shell (1); the rotating seat (52) is internally hinged with a swing frame (53), and the side of the rotating seat (52) away from the outer shell (1) is connected to a magnetic plate (54) for adsorbing onto the surface of the power facility through a ball joint (55); the outer wall of the rotating shaft between the swing frame (53) and the rotating seat (52) is connected to one of the sets of transmission rods (42) by a belt.

9. A laser positioning and guiding device for power facility installation as described in claim 8, characterized in that, The support base (51) is located at the center of the upper surface of the outer shell (1) and is used to support the swing frame (53) in a horizontal state; the upper surface of the rotating base (52) is slidably connected with a positioning plate (57), the positioning plate (57) is elastically connected to the inner wall of the rotating base (52) through a positioning spring (59), and the surface of the swing frame (53) is provided with a positioning groove (58) that matches the positioning plate (57); the swing frame (53) is threadedly connected to the outer wall of the rotating shaft of the rotating base (52) with a locking nut (56).

10. A laser positioning and guiding device for power facility installation as described in claim 2, characterized in that, The outer wall and lower end of the outer shell (1) are provided with openings, and an observation window (3) is provided at the opening of the outer wall; multiple sets of level instruments (2) are installed on the upper end of the outer shell (1); the fixing frame (61) is set in a cross shape, and its outer wall is connected to four sets of laser emitters (67) capable of emitting strip lasers.

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