Laser auxiliary device for digital angle gauge and measuring tool for attached wall angle

Abstract

A laser auxiliary device of a digital angle gauge and a wall-attached angle measuring tool; the laser auxiliary device comprises a cover, a guide rail, a laser mounting base and a laser emitter; the cover is provided with a connecting structure; the connecting structure is used for detachably connecting to one of the gauge bodies of the digital angle gauge, so that the connected gauge body is aligned along an X-axis direction; the guide rail is mounted on the cover; the laser mounting base is movably and adjustably connected to the guide rail, and the laser mounting base moves along a Y-axis direction; the emitting end of the laser emitter faces the X-axis, and the laser emitter is adjustably connected to the laser mounting base, so that the emitting end of the laser emitter rotates and adjusts around the Y-axis. The scheme solves the problems of inaccurate measurement results and low measurement efficiency caused by the fact that the measured rod of the high-altitude tower crane is limited to the on-site angle indicating gauge and is close to the shaft.

Description

Technical Field

[0001] This utility model relates to the field of measuring devices, and in particular to a laser-assisted device for a digital angle ruler and a measuring tool for the angle of a wall attachment. Background Technology

[0002] The measurement of the wall-attachment angle of a tower crane is generally done using a traditional digital protractor. However, the shapes and sizes of tower crane wall-attachment components are not uniform and are relatively large. Current technology generally uses visual estimation or on-site measurement by drawing auxiliary lines on the wall-attachment device. However, there may be limitations on the measurement angle and position on-site. For example, there may be structural limitations on the fixed position and measurement position of the digital protractor, mainly due to the length of the digital protractor and the structural limitations of the tower crane wall-attachment components. When measuring the wall-attachment angle of a tower crane, as the measurement distance increases, simply using auxiliary lines to assist in the measurement becomes difficult or even impossible to achieve the desired aim. Utility Model Content

[0003] The purpose of this invention is to provide a laser-assisted device for a digital angle gauge. The device uses a connecting structure to connect to one of the gauge bodies of the digital angle gauge. The other gauge body can be fixed to the base of the standard section crossbar. The relative rotation of the two gauge bodies drives the laser-assisted device to rotate. The laser emitter can emit a laser towards the axis of the rod being measured, and the angle between the standard section crossbar and the rod being measured can be obtained from the reading of the digital angle gauge.

[0004] This utility model also proposes a measuring tool for the wall attachment angle of a tower crane, which is equipped with a digital angle ruler and the aforementioned laser-assisted device.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A laser-assisted device for a digital angle ruler includes: a housing, a guide rail, a laser mounting base, and a laser emitter;

[0007] The machine cover is provided with a connecting structure; the connecting structure is used to detachably connect to one of the scale bodies of the digital angle ruler, so that the connected scale bodies are aligned along the X-axis; the guide rail is mounted on the machine cover; the laser mounting base is movably and adjustablely connected to the guide rail, and the laser mounting base moves along the Y-axis; the emitting end of the laser emitter faces the X-axis, and the laser emitter is angularly adjustable and connected to the laser mounting base, so that the emitting end of the laser emitter can be rotated and adjusted around the Y-axis.

[0008] Alternatively, the connection structure may be equipped with an electromagnet, which is used for magnetic connection to the ruler body.

[0009] Optimally, it may also include: power supply;

[0010] The power supply is located inside the housing; the electromagnet is in contact with the bottom plate of the housing; the power supply is electrically connected to the laser emitter and the electromagnet to supply power to the laser emitter and the electromagnet.

[0011] Alternatively, the shroud may be equipped with a laser emission switch and a magnetic switch;

[0012] The laser emission switch is electrically connected to the laser emitter and is used to control the switching state of the laser emitter; the magnetic switch is electrically connected to the electromagnet and is used to control the switching state of the electromagnet.

[0013] Optimally, it may also include: an auxiliary positioning plate;

[0014] The auxiliary positioning plate is connected to the machine cover; the auxiliary positioning plate has a vertically extending positioning side; the positioning side is used to contact the ruler of the connecting structure so that the ruler is aligned with the X-axis direction.

[0015] Alternatively, the auxiliary positioning plate is provided with a rotatable and adjustable knob, one side of which is provided with a threaded rod; the side of the machine cover is provided with a threaded hole facing the Y-axis direction, and the threaded rod is threaded into the threaded hole, so that the auxiliary positioning plate is movably and adjustablely connected to the machine cover, and the auxiliary positioning plate can be moved and adjusted along the Y-axis direction.

[0016] Optimally, it may also include: a Y-axis adjustment component;

[0017] The Y-axis adjustment assembly includes: a movable slider, a Y-axis adjustment screw, and a movable locking nut;

[0018] The guide rail is provided with a groove facing the Y-axis. The movable slider is movably limited to the groove along the Y-axis. The laser mounting base is connected to the movable slider. One end of the Y-axis adjusting screw extends into the groove and is rotatably connected to the movable slider. The other end of the Y-axis adjusting screw is threaded with the movable locking nut. The movable locking nut is rotatably adjusted by the Y-axis adjusting screw and, when it abuts against the side wall of the guide rail, fixes the movable slider to the groove.

[0019] Alternatively, the Y-axis adjustment assembly may further include: an angle locking nut;

[0020] The laser mounting base is provided with a Y-axis, and the laser emitter is provided with a rotating groove. The rotating groove is rotatably fitted onto the Y-axis. The Y-axis is provided with external thread structures at both ends of the rotating groove. The angle locking nuts are threaded into the external thread structures. The angle locking nuts abut against the left and right sides of the laser emitter, thereby fixing the laser emitter to the Y-axis.

[0021] A measuring tool for the wall attachment angle of a tower crane includes: a digital angle ruler and a laser-assisted device for the aforementioned digital angle ruler;

[0022] The digital angle ruler has two relatively rotating ruler bodies, one of which is detachably connected to the connecting structure.

[0023] Alternatively, the ruler body can be made of metal and magnetically fixed to the connecting structure.

[0024] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0025] This solution provides a laser-assisted device for a digital angle gauge. It uses a connecting structure to connect to one of the gauge bodies of the digital angle gauge, and can be fixed to the base of the standard section crossbar through the other gauge body. The relative rotation of the two gauge bodies drives the laser-assisted device to rotate. The laser emitter can emit a laser towards the axis of the measured rod, and the angle between the standard section crossbar and the measured rod can be obtained from the reading of the digital angle gauge. This solves the problem of inaccurate measurement results and low measurement efficiency caused by the angle indicator being too close to the axis of the measured rod in the field of high-altitude tower cranes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of one embodiment of a measuring tool for the wall attachment angle of a tower crane;

[0027] Figure 2 This is a schematic diagram of one embodiment of a guide rail with a laser emitter installed.

[0028] Figure 3 This is an exploded structural diagram of one embodiment of a measuring tool for measuring the wall attachment angle of a tower crane;

[0029] Figure 4 This is a partial structural diagram of one embodiment of the hood at the positioning side.

[0030] in:

[0031] 1. Housing; 2. Guide rail; 3. Laser mounting base; 4. Laser emitter; 5. Power supply; 6. Auxiliary positioning plate; 7. Digital angle ruler; 8. Y-axis adjustment assembly;

[0032] Connection structure 11; laser emission switch 12; magnetic switch 13; base plate 14; threaded hole 15;

[0033] Electromagnet 111; Slide 21; Y-axis 31;

[0034] Positioning side 61; Knob 62; Threaded rod 63; Guide rod 64; Ruler body 71;

[0035] 81. Sliding slider; 82. Y-axis adjusting screw; 83. Moving locking nut; 84. Angle locking nut. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0038] like Figure 1-4 A laser-assisted device for a digital angle ruler includes: a housing 1, a guide rail 2, a laser mounting base 3, and a laser emitter 4;

[0039] The housing 1 is provided with a connecting structure 11; the connecting structure 11 is used to detachably connect to one of the scale bodies 71 of the digital angle ruler 7, so that the connected scale bodies 71 are aligned along the X-axis; the guide rail 2 is mounted on the housing 1; the laser mounting base 3 is movably and adjustablely connected to the guide rail 2, and the laser mounting base 3 moves along the Y-axis; the emitting end of the laser emitter 4 faces the X-axis, and the laser emitter 4 is angularly adjustablely connected to the laser mounting base 3, so that the emitting end of the laser emitter 4 can rotate and adjust around the Y-axis.

[0040] This solution provides a laser-assisted device for a digital angle gauge. It uses a connecting structure 11 to connect to one of the gauge bodies 71 of the digital angle gauge 7. The other gauge body 71 can be fixed to the base of the standard section crossbar. The relative rotation of the two gauge bodies 71 drives the laser-assisted device to rotate. The laser emitter 4 can emit a laser towards the axis of the measured member and obtain the angle between the standard section crossbar and the measured member from the reading of the digital angle gauge 7. This solves the problem of inaccurate measurement results and low measurement efficiency caused by the angle indicator being restricted to the axis of the measured member on site in high-altitude tower cranes.

[0041] Specifically, as is generally known, a digital angle gauge 7 is a tool used for precise angle measurement. Its structure mainly includes mechanical components and an electronic display system, and its overall design facilitates rotation and angle fixation. Taking one type of digital angle gauge 7 as an example, the core components include a gauge body 71, a rotating disk 72, and an LCD screen 73. The rotating disk rotates, causing the angle of the gauge body 71 to change, and a spring provides resistance to maintain stable measurement. The laser-assisted device in this solution has a connecting structure 11 on the housing 1, which is mainly used to fix one of the gauge bodies 71 of the digital angle gauge 7. After the gauge body 71 is fixed, its angle extending along the X-axis is fixed. The connecting structure 11 is a known mechanism with detachable fixing function, such as screw fixing, snap-fit ​​fixing, clamp fixing, etc., as long as it can fix the gauge body 71 to the housing 1. The guide rail 2 is fixed to the housing 1 and extends along the Y-axis. The laser mounting base 3 is movably connected to the guide rail 2, meaning that the laser mounting base 3 can be adjusted along the Y-axis, causing the laser emitter 4 mounted on it to move and adjust along the Y-axis. The laser emitter 4 and the laser mounting base 3 are connected in an angle-adjustable manner, and the laser emitter 4 can rotate and adjust around the Y-axis. Initially, the emitting end of the laser emitter 4 faces the X-axis. When a height difference occurs between the fixed position of the digital angle scale 7 and the position to be measured, the laser emitter 4 can be adjusted to rotate around the Y-axis, adjusting the angle of the emitting end of the laser emitter 4 to the target position. The emitting end of the laser emitter 4 can then emit light towards the position to be measured at different heights. Taking one method of use as an example, when using the laser-assisted device, with one of the scale bodies 71 of the digital angle ruler 7 close to the front of the standard crossbar of the tower crane, the connecting structure 11 of the housing 1 is connected to one of the scale bodies 71 of the digital angle ruler 7, driving the scale body 71 to rotate, which in turn drives the housing 1 of the scale body 71 to rotate; the laser emitter 4 is activated, causing the laser emitter 4 to emit light, thereby rotating the emitted light to be positioned on the axis of the attached rod of the tower crane (usually drawn during construction). At this time, the angle between the two scale bodies 71 is the angle between the axis of the standard crossbar of the tower crane and the attached rod. The angle measurement is completed by reading the digital angle ruler 7; during this period, the emitting end of the laser emitter 4 is oriented towards the X-axis. The laser emitter 4 emits light in the X-axis direction. When the light emitted by the laser emitter 4 is parallel to the axis of the attached rod, the position of the laser mounting base 3 on the guide rail 2 can be adjusted to make the light overlap with the axis. This allows the laser emitter 4 to move along the Y-axis, and the light emitted by the laser emitter 4 can be positioned to overlap with the axis of the attached rod, thereby improving the accuracy of the measurement results. At the same time, when there is a height difference between the standard crossbar and the attached rod, the angle of the laser emitter 4 on the laser mounting base 3 can be adjusted to rotate the laser emitter 4 around the Y-axis. This adjusts the angle of the emitting end of the laser emitter 4, so that the emitting end is tilted upward or downward towards the X-axis, thereby making the light overlap with the axis of the attached rod.Thus, this solution can obtain the angle between the standard section crossbar and the measured member from the reading of the digital angle gauge 7, thereby solving the problem of inaccurate measurement results and low measurement efficiency caused by the angle indicator being too close to the axis when the measured member of the tower crane is restricted on site.

[0042] Alternatively, the connection structure 11 may be equipped with an electromagnet 111, which is used to magnetically connect to the ruler body 71.

[0043] As is generally known, electromagnet 111 generates electromagnetic fields when energized. In this embodiment, when electromagnet 111 is energized, it possesses magnetic force and can directly or indirectly attract metal parts on the ruler body 71. Generally, the ruler body 71 of the digital angle ruler 7 is made of metal, and electromagnet 111 can directly attract it. When it is necessary to disassemble the ruler body 71, the electromagnet 111 can be de-energized, the magnetic force of electromagnet 111 disappears, and the ruler body 71 can be freely removed. The disassembly of the digital angle ruler 7 and the laser-assisted device is convenient and quick.

[0044] Optimally, it also includes: power supply 5;

[0045] The power supply 5 is located inside the housing 1; the electromagnet 111 is in contact with the base plate 14 of the housing 1; the power supply 5 is electrically connected to the laser emitter 4 and the electromagnet 111, and is used to supply power to the laser emitter 4 and the electromagnet 111.

[0046] The laser-assisted device in this design has a built-in power supply 5, which is located in the housing 1. It can directly power the laser emitter 4 and electromagnet 111 in a high-altitude environment without the need for a separate power supply at high altitudes, making the laser-assisted device more convenient to carry and use. At the same time, the electromagnet 111 is close to the base plate 14 of the housing 1. When the electromagnet is energized, it can generate a magnetic field near the base plate 14. The scale body 71 of the digital angle ruler 7 can be directly attached to the base plate 14 of the housing 1, making the installation of the scale body 71 of the digital angle ruler 7 in the laser-assisted device faster. In some embodiments, the electromagnet 111 is exposed on the outer surface of the housing 1 and located below the base plate 14, directly contacting the ruler 71; in some embodiments, the electromagnet 111 is located inside the housing 1, contacting the upper part of the base plate 14, and the ruler 71 is located below the base plate 14, with the ruler 71 and the electromagnet 111 separated by the base plate 14; in some embodiments, the base plate 14 is made of metal, and the base plate 14 has magnetic force when the electromagnet 111 contacts the base plate 14.

[0047] The laser emitter 4 and the electromagnet 111 may be equipped with switch buttons on their surface as needed; in some embodiments, the housing 1 is provided with a laser emission switch 12 and a magnetic switch 13;

[0048] The laser emitting switch 12 is electrically connected to the laser emitting device 4 and is used to control the switching state of the laser emitting device 4; the magnetic switch 13 is electrically connected to the electromagnet 111 and is used to control the switching state of the electromagnet 111.

[0049] This design integrates the laser emitter switch 12 and the magnetic switch 13 within the housing 1. The laser emitter switch 12 and the magnetic switch 13 can be operated within a designated area of ​​the housing 1 to control the switching states of the laser emitter 4 and the electromagnet 111. The laser emitter switch 12 and the magnetic switch 13 can utilize mechanisms known for adjusting switches, such as gates, buttons, and knobs.

[0050] Optimally, it also includes: an auxiliary positioning plate 6;

[0051] The auxiliary positioning plate 6 is connected to the machine cover 1; the auxiliary positioning plate 6 is provided with a vertically extending positioning side 61; the positioning side 61 is used to contact the ruler 71 of the connecting structure 11, so that the ruler 71 is aligned with the X-axis direction.

[0052] The auxiliary positioning plate 6 can be used to position the ruler 71 of the connecting structure 11; the auxiliary positioning plate 6 has a positioning side 61 that extends in the X-axis direction; thus, when the ruler 71 of the connecting structure 11 contacts the auxiliary positioning plate 6, the side of the ruler 71 abuts against the positioning side 61 of the auxiliary positioning plate 6, and the positioning side 61 can be positioned to be aligned with the X-axis direction, thereby calibrating the connection angle between the digital angle ruler 7 and the laser-assisted device.

[0053] In some embodiments, the auxiliary positioning plate 6 can be a fixed machine cover 1; in some embodiments, the auxiliary positioning plate 6 can be movable relative to the machine cover 1; the auxiliary positioning plate 6 is provided with a rotatable and adjustable knob 62, and one side of the knob 62 is provided with a threaded rod 63; the side of the machine cover 1 is provided with a threaded hole 15 facing the Y-axis direction, and the threaded rod 63 is threaded into the threaded hole 15, so that the auxiliary positioning plate 6 is movably and adjustablely connected to the machine cover 1, and the auxiliary positioning plate 6 can be moved and adjusted along the Y-axis direction.

[0054] A knob 62 is rotatably mounted on the auxiliary positioning plate 6. A threaded rod 63 on the knob 62 is threaded into a threaded hole 15 in the housing 1. When the knob 62 is rotated, the threaded rod 63 rotates relative to the threaded hole 15, and the external thread of the threaded rod 63 moves relative to the internal thread of the threaded hole 15, thereby moving the knob 62 and the auxiliary positioning plate 6 towards or away from the housing 1, making the position of the positioning side 61 adjustable. Different laser-assisted devices may have different rulers 71, and the adjustable position of the positioning side 61 can accommodate rulers 71 of different widths. After the ruler 71 is positioned at the positioning side 61, the electromagnet 111 is energized, fixing the ruler 71 at the positioned angle to the connecting structure 11. Simultaneously, to improve the smoothness of adjustment of the auxiliary positioning plate 6, a guide rod 64 can be installed between the auxiliary positioning plate 6 and the housing 1 to provide guidance for both.

[0055] Optimally, it also includes: a Y-axis adjustment component 8;

[0056] The Y-axis adjustment assembly 8 includes: a movable slider 81, a Y-axis adjustment screw 82, and a movable locking nut 83;

[0057] The guide rail 2 is provided with a groove 21 facing the Y-axis. The movable slider 81 is movably limited to the groove 21 along the Y-axis. The laser mounting base 3 is connected to the movable slider 81. One end of the Y-axis adjusting screw 82 extends into the groove 21 and is rotatably connected to the movable slider 81. The other end of the Y-axis adjusting screw 82 is threaded with the movable locking nut 83. The movable locking nut 83 is rotatably adjusted by the Y-axis adjusting screw 82 and, when it abuts against the side wall of the guide rail 2, fixes the movable slider 81 to the groove 21.

[0058] The movable slider 81 moves the laser mounting base 3 along the guide rail 2, which in turn moves the laser emitter 4 along the Y-axis. One end of the Y-axis adjusting screw 82 extends into the slide groove 21 and is rotatably connected to the movable slider 81. The other end of the Y-axis adjusting screw 82 protrudes from the side of the guide rail 2. When it is necessary to adjust the Y-axis position of the laser emitter 4, the Y-axis adjusting screw 82 can be adjusted. The Y-axis adjusting screw 82 moves the movable slider 81, allowing the laser emitter 4 to reach the target position. At this time, the movable locking nut 83 can be rotated relative to the Y-axis adjusting screw 82, and the movable locking nut 83 moves towards the side wall of the guide rail 2. When the movable locking nut 83 rotates to abut against the side wall of the guide rail 2, the side of the movable slider 81 facing the movable locking nut 83 presses against the side wall of the slide groove 21, thereby limiting the movable slider 81 to the slide groove 21, and fixing the laser emitter 4 in the Y-axis position.

[0059] In this design, the laser emitter 4 can rotate relative to the laser mounting base 3 around the X-axis. This can be achieved in a known manner, as long as the laser emitter 4 can rotate around the X-axis. In one embodiment, the Y-axis adjustment assembly 8 further includes an angle locking nut 84.

[0060] The laser mounting base 3 is provided with a Y-axis 31, and the laser emitter 4 is provided with a rotating groove. The rotating groove is rotatably fitted onto the Y-axis 31. The Y-axis 31 is provided with external thread structures at both ends of the rotating groove. The angle locking nuts 84 are threaded into the external thread structures respectively. The angle locking nuts 84 abut against the left and right sides of the laser emitter 4 respectively, so that the laser emitter 4 is fixed to the Y-axis 31.

[0061] The laser emitter 4 has a rotating groove on the side away from the emitter, and the rotating groove is rotatably mounted on the Y-axis 31 of the laser mounting base 3. The Y-axis 31 has external thread structures at both ends of the rotating groove, and the angle locking nuts 84 are threaded into the external thread structures at both ends. When the angle locking nuts 84 are against the left and right sides of the laser emitter 4, the angle locking nuts 84 at both ends are pressed against the two sides of the laser emitter 4, thereby fixing the laser emitter 4 to the laser mounting base 3 at a specific angle.

[0062] A measuring tool for the wall attachment angle of a tower crane includes: a digital angle ruler 7 and a laser-assisted device for the aforementioned digital angle ruler;

[0063] The digital angle ruler 7 has two relatively rotating ruler bodies 71, one of which is detachably connected to the connecting structure 11.

[0064] Alternatively, the ruler 71 can be made of metal and magnetically fixed to the connecting structure 11.

[0065] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A laser-assisted device for a digital angle ruler, characterized in that, include: The housing, guide rails, laser mount, and laser emitter; The cover is provided with a connecting structure; the connecting structure is used to detachably connect to one of the scale bodies of the digital angle ruler, so that the connected scale bodies are aligned along the X-axis direction; The guide rail is mounted on the housing; the laser mounting base is movably and adjustablely connected to the guide rail, and the laser mounting base moves along the Y-axis; the emitting end of the laser emitter faces the X-axis, and the laser emitter is angularly adjustable and connected to the laser mounting base, allowing the emitting end of the laser emitter to rotate and adjust around the Y-axis.

2. The laser-assisted device for a digital angle ruler according to claim 1, characterized in that, The connecting structure is equipped with an electromagnet, which is used to magnetically connect to the ruler body.

3. The laser-assisted device for a digital angle ruler according to claim 2, characterized in that, Also includes: power supply; The power supply is located inside the housing; the electromagnet is in contact with the bottom plate of the housing; the power supply is electrically connected to the laser emitter and the electromagnet to supply power to the laser emitter and the electromagnet.

4. The laser-assisted device for a digital angle ruler according to claim 3, characterized in that, The casing is equipped with a laser emission switch and a magnetic switch; The laser emission switch is electrically connected to the laser emitter and is used to control the switching state of the laser emitter; the magnetic switch is electrically connected to the electromagnet and is used to control the switching state of the electromagnet.

5. The laser-assisted device for a digital angle ruler according to claim 2, characterized in that, Also includes: Auxiliary positioning plate; The auxiliary positioning plate is connected to the machine cover; the auxiliary positioning plate has a vertically extending positioning side; the positioning side is used to contact the ruler of the connecting structure so that the ruler is aligned with the X-axis direction.

6. The laser-assisted device for a digital angle ruler according to claim 5, characterized in that, The auxiliary positioning plate is equipped with a rotatable and adjustable knob, and one side of the knob is provided with a threaded rod; the side of the machine cover is provided with a threaded hole facing the Y-axis direction, and the threaded rod is threaded into the threaded hole, so that the auxiliary positioning plate is movably and adjustablely connected to the machine cover, and the auxiliary positioning plate can be moved and adjusted along the Y-axis direction.

7. The laser-assisted device for a digital angle ruler according to claim 1, characterized in that, Also includes: Y-axis adjustment component; The Y-axis adjustment assembly includes: a movable slider, a Y-axis adjustment screw, and a movable locking nut; The guide rail is provided with a groove facing the Y-axis. The movable slider is movably limited to the groove along the Y-axis. The laser mounting base is connected to the movable slider. One end of the Y-axis adjusting screw extends into the groove and is rotatably connected to the movable slider. The other end of the Y-axis adjusting screw is threaded with the movable locking nut. The movable locking nut is rotatably adjusted by the Y-axis adjusting screw and, when it abuts against the side wall of the guide rail, fixes the movable slider to the groove.

8. The laser-assisted device for a digital angle ruler according to claim 7, characterized in that, The Y-axis adjustment assembly also includes: an angle locking nut; The laser mounting base is provided with a Y-axis, and the laser emitter is provided with a rotating groove. The rotating groove is rotatably fitted onto the Y-axis. The Y-axis is provided with external thread structures at both ends of the rotating groove. The angle locking nuts are threaded into the external thread structures. The angle locking nuts abut against the left and right sides of the laser emitter, thereby fixing the laser emitter to the Y-axis.

9. A measuring tool for the included angle of a wall, characterized in that, include: A digital angle ruler and a laser-assisted device for a digital angle ruler according to any one of claims 1-8; The digital angle ruler has two relatively rotating ruler bodies, one of which is detachably connected to the connecting structure.

10. A measuring tool for the included angle of a wall according to claim 9, characterized in that, The ruler is made of metal and is magnetically fixed to the connecting structure.

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