A laser-based verticality detection device and a method for installing lattice columns.

Abstract

The application relates to the technical field of building construction, in particular to a verticality detection device based on laser and a latticed column installation method. The verticality detection device based on laser comprises a measuring tube, an adjusting ring is hingedly arranged on the outer circumferential surface of the measuring tube, a mounting bracket is hingedly arranged on the outer circumferential surface of the adjusting ring, the adjusting ring is located on the upper side of the gravity center of the measuring tube during use, a laser inlet is arranged on the end surface of one end of the measuring tube, and a display mark is arranged on the end surface of the other end of the measuring tube. In a free state, the measuring tube is always in a vertical state, which is convenient for serving as a basis for measurement; one end of the measuring tube is provided with the laser inlet, and the other end is provided with a transparent display mark; the position of the laser on the display mark is used to know the deflection degree of the latticed column in the vertical direction, thereby solving the problem that the error is large in the verticality detection of the latticed column by relying on a ruler in the prior art, and a small deflection angle cannot be accurately measured.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a laser-based verticality detection device and a method for installing lattice columns. Background Technology

[0002] In building construction, especially in deep foundation pit projects, lattice-type steel column support designs are commonly used for concrete-supported trestle bridges and tower crane foundations in underground structure stages. This involves installing steel lattice columns within the deep foundation pit, upon which construction then proceeds. This design offers convenient installation and dismantling, and boasts a high recycling rate. During construction, a crane is typically used to lift the lattice column into the foundation pit, and to ensure construction quality, the column must be kept vertical.

[0003] In existing technologies, a straightedge is often used to measure the verticality of the lattice column after it has been installed. However, the straightedge itself has limited precision and cannot accurately measure small angular errors. Furthermore, the straightedge can only determine whether the object being measured is straight or not, but cannot measure the actual angle of deviation, which is not conducive to subsequent correction. Summary of the Invention

[0004] In view of this, the present invention provides a laser-based verticality detection device to solve the problems of large errors and inaccurate measurement of small offset angles caused by relying on straightedges for verticality detection of lattice columns in the prior art; the present invention also provides a lattice column installation method to solve the above-mentioned technical problems.

[0005] A laser-based verticality detection device includes a measuring tube for laser beam penetration. An adjusting ring is hinged to the outer circumference of the measuring tube, and a mounting bracket is hinged to the outer circumference of the adjusting ring. The mounting bracket is used for mounting on a construction frame. The hinge axis between the adjusting ring and the mounting bracket and the hinge axis between the adjusting ring and the measuring tube are located in the same horizontal plane and are perpendicular to each other. In use, the adjusting ring is located above the center of gravity of the measuring tube. A laser inlet is provided on the end face of one end of the measuring tube for laser beam penetration, and a transparent display mark is provided on the end face of the other end of the measuring tube to indicate the position where the laser beam passes through the top of the measuring tube. The laser-based verticality detection device also includes a laser emitter for mounting on the component to be tested.

[0006] Furthermore, the measuring tube is a transparent tube with a closed bottom, and the measuring tube is used to hold the developing liquid for laser development.

[0007] Furthermore, a bottom end cap is installed at the bottom of the measuring tube, and the laser inlet is located at the center of the bottom end cap. A top cover plate is installed at the top of the measuring tube, and the display mark is located on the top cover plate.

[0008] Furthermore, the display markings are multiple circular scale lines with different diameters arranged at intervals, with their centers located on the axis of the measuring tube.

[0009] Furthermore, a base ring is installed on the outer circumferential surface of the measuring tube, and a first connecting shaft with collinear axes is respectively provided on opposite sides of the base ring. The first connecting shaft is hinged to the adjusting ring, and the axis of the first connecting shaft is the hinge axis between the adjusting ring and the measuring tube.

[0010] Furthermore, a spare ring is also installed on the outer circumferential surface of the measuring tube, and the structure of the spare ring is the same as that of the base ring.

[0011] Furthermore, the adjusting ring is a square ring.

[0012] The beneficial effects of the laser-based verticality detection device in this invention are as follows: The laser-based verticality detection device facilitates multi-degree-of-freedom adjustment of the measuring tube by setting up a measuring tube, an adjusting ring hinged to the outer circumference of the measuring tube, and a mounting bracket on the outer circumference of the adjusting ring. In use, the adjusting ring is located below the center of gravity of the measuring tube, and the mounting bracket is used to install it on a construction frame, allowing for convenient adjustment using the measuring tube's own weight. This ensures that the measuring tube remains vertical in its free state, facilitating its use as a measurement base. One end of the measuring tube has a laser inlet, and the other end has a transparent display mark. Therefore, when… After installing a laser emitter on the lattice column, the laser can indicate the orientation of the lattice column. When the laser enters from the laser inlet of the measuring tube, if the laser is vertical, it will hit the center of the transparent display mark. If the laser is deflected, it will hit other positions. By observing the position of the laser on the display mark, we can determine whether the laser is vertical and the degree of deflection of the straight tube, and thus know the degree of deflection of the lattice column in the vertical direction. This makes it easier to adjust the lattice column, thereby solving the problem of large errors caused by relying on a straightedge to detect the verticality of the lattice column in the existing technology, and the inability to accurately measure small offset angles.

[0013] A method for installing a lattice column involves using the aforementioned laser-based verticality detection device. A laser emitter is installed at the end of the lattice column, ensuring that the extension direction of the lattice column is aligned with the extension direction of the laser emitted by the laser emitter. A measuring tube, along with a mounting bracket, is installed on a construction frame around the lattice column, allowing the measuring tube to move freely relative to the mounting bracket. Under the influence of gravity, the measuring tube is arranged vertically. The laser beam enters from the laser inlet at the end of the measuring tube and strikes a display mark at the other end, thereby displaying the verticality of the lattice column through laser light and adjusting the lattice column accordingly.

[0014] Furthermore, while ensuring that the extension direction of the lattice column is consistent with the extension direction of the laser emitted by the laser emitter, the lattice column is placed horizontally on a level ground, keeping the laser emitter level with the ground.

[0015] The beneficial effects of the lattice column installation method in this invention are as follows: By installing the laser emitter at the end of the lattice column and ensuring that the extension direction of the lattice column is consistent with the extension direction of the laser emitted by the laser emitter, the orientation of the laser can be used to replace the verticality of the lattice column, facilitating inspection. Installing the measuring tube on the construction frame around the lattice column facilitates measurement. During use, the adjusting ring is located below the center of gravity of the measuring tube, and the mounting bracket is used to install it on the construction frame, allowing for adjustment using the weight of the measuring tube itself. This ensures that the measuring tube remains vertical in its free state, providing a convenient basis for measurement. One end of the measuring tube is equipped with… With a laser inlet and a transparent display mark at the other end, the laser emitter, once installed on the lattice column, indicates the column's orientation. When the laser enters through the laser inlet of the measuring tube, if the laser is vertical, it will hit the center of the transparent display mark; if the laser is skewed, it will hit another location. By observing the laser's position on the display mark, the degree of verticality and skewness of the laser can be determined, thus revealing the degree of skewness of the lattice column. This facilitates adjustment of the lattice column and solves the problem of large errors and inaccurate measurement of small offset angles caused by relying on a straightedge for lattice column verticality testing in existing technologies. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the measuring tube structure in an embodiment of the laser-based verticality detection device of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the display mark in an embodiment of the laser-based verticality detection device of the present invention;

[0019] Figure 3 This is a schematic diagram of the laser inlet structure in an embodiment of the laser-based verticality detection device of the present invention;

[0020] Figure 4 This is a schematic diagram showing the connection between the adjusting ring and the mounting bracket in an embodiment of the laser-based verticality detection device of the present invention;

[0021] Figure 5 This is a schematic diagram illustrating the use of the lattice column installation method in an embodiment of the present invention.

[0022] The labels in the diagram represent the following: 1. Measuring tube; 11. Base ring; 111. First connecting shaft; 12. Spare ring; 13. Bottom end cap; 131. Laser inlet; 14. Top cover plate; 141. Display mark; 2. Adjusting ring; 21. Second connecting shaft; 3. Mounting bracket; 41. Connecting rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0024] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0025] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0026] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0027] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the convenience of the description of the invention and have no specific meaning in themselves. Therefore, "module" and "part" can be used interchangeably.

[0029] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0030] In Embodiment 1 of the laser-based lattice column verticality detection device (hereinafter referred to as the detection device) of this invention:

[0031] The detection device in this invention includes a mounting bracket and a measuring tube that can move relative to each other. The connection between the measuring tube and the mounting bracket is located above the center of gravity of the measuring tube, so that the measuring tube can move freely relative to the mounting bracket under the action of gravity and automatically maintain a vertical state. Then, the laser path is measured by using the laser inlet and display mark on the measuring tube. When the laser emitter is installed on the lattice column, the orientation of the lattice column can also be displayed.

[0032] Specifically, such as Figure 1 and Figure 4As shown, the detection device of this invention includes a measuring tube 1, which is a transparent glass tube open at one end and closed at the other. The glass tube is cylindrical and can hold liquid. In use, the open end of the measuring tube 1 faces upward. A base ring 11 is provided on the outer circumferential surface of the glass tube, located one-third of the distance from the tube opening. The base ring 11 includes a ring body fixedly connected to the outer circumferential surface of the glass tube and forming a ring, and a first connecting shaft 111 located on the ring body. The first connecting shaft 111 has two shafts located on both sides of the ring body, and the axes of the two first connecting shafts 111 are collinear, thereby allowing the measuring tube 1 to rotate along the axis of the first connecting shaft 111. Of course, in other embodiments, the measuring tube can also be a square tube, in which case the ring body of the base ring should be adapted to be a square ring. Alternatively, in other embodiments, the first connecting shaft can be directly set on the glass tube during the manufacturing process. Alternatively, in other embodiments, the measuring tube can also be an acrylic tube, which facilitates the observation of the laser. Alternatively, in other embodiments, the measuring tube may be a transparent glass tube that is closed at both ends, in which case it may contain liquid or remain empty.

[0033] An adjusting ring 2 is hinged to the outer periphery of the base ring 11. Specifically, a first connecting shaft 111 is mounted on the adjusting ring 2. The adjusting ring 2 includes a square ring body and two second connecting shafts 21 located on its two sides. The axes of the two second connecting shafts 21 are collinear, and the axes of the second connecting shafts 21 are perpendicular to the axis of the first connecting shaft 111 and lie in the same plane. A mounting bracket 3 is also provided on the outer side of the adjusting ring 2, and the second connecting shafts 21 are mounted on the mounting bracket 3. This allows the measuring tube 1 to have two degrees of rotational freedom relative to the mounting bracket 3 during adjustment, facilitating automatic adjustment of the measuring tube 1. Furthermore, since the base ring 11 is located above the center of gravity of the measuring tube 1, the first connecting shaft 111 and the second connecting shaft 21 are respectively located above the center of gravity of the measuring tube 1. During use, the measuring tube 1 tends to be vertically downward under the influence of gravity. Of course, in other embodiments, the adjusting ring can also be configured in other shapes.

[0034] To measure verticality, a laser emitter is also provided for mounting on the component to be tested. In this embodiment, the measurement is performed on a lattice column, therefore the component to be tested is a lattice column. Of course, if other items are being tested, the laser emitter can be adapted to be mounted on other items as well. Figure 2 and Figure 3As shown, to demonstrate the laser beam, a bottom end cap 13 is provided at the bottom of the measuring tube 1. The laser inlet 131 is located at the center of the bottom end cap 13, ensuring that only one laser beam enters. A top cover plate 14 is installed at the top of the measuring tube 1, and a display mark 141 is provided on the top cover plate 14 to facilitate the display of the laser's landing point at the top. In this embodiment, the laser beam propagates from bottom to top. Of course, in other embodiments, if the laser emitter emits the laser beam downwards, the positions of the top cover plate 14 and the bottom end cap 13 can be interchanged to ensure that the laser inlet 131 is placed close to the laser emitter. The display mark 141 consists of multiple circular scale lines with different diameters arranged at intervals, centered on the axis of the measuring tube 1. In addition, a cross-shaped coordinate axis is provided, displaying scales on the coordinate axis, which facilitates intuitive reading of the laser beam's deflection. Of course, in other embodiments, the display mark can also be set in other forms, such as only having a coordinate axis without the circular rings.

[0035] Furthermore, since it is uncertain whether the laser emitter is located on the upper or lower side of the measuring tube, in other embodiments, the bottom end cap with the laser inlet can face upwards, and the top end cap with the display mark can face downwards. To facilitate adjustment of the measuring tube's orientation, a spare ring 12, identical in structure to the base ring 11, is provided on the outer circumference of the measuring tube 1. The spare ring is located approximately two-thirds of the way from the tube opening. Installing the spare ring 12 onto the adjusting ring 2 naturally changes the orientation of the measuring tube.

[0036] To facilitate laser visualization, a visualization liquid is provided inside the measuring tube 1. In this embodiment, the visualization liquid is red ink. Of course, in other embodiments, it can be replaced with an ionic solution or food coloring solution that can visualize the laser path. Furthermore, the measuring tube 1 containing the visualization liquid is heavier, resulting in a greater torque during rotation, which helps maintain the vertical position of the measuring tube 1. This detection device is typically installed outdoors, and corrosion may occur at the first connecting shaft 111 and the second connecting shaft 21 due to rain. The visualization liquid also increases the torque during rotation, facilitating rotation against friction. If the measuring tube 1 needs to be reversed using the spare ring 12, it can be configured as a glass tube with both ends closed, preventing the visualization liquid from spilling even during reversal.

[0037] In an embodiment of the method for installing lattice columns in this invention:

[0038] In this embodiment, the laser-based verticality detection device described above is used. During the installation of the lattice column, a laser emitter is first installed at the top of the lattice column. The position of the laser emitter relative to the lattice column is adjustable. During installation, it is necessary to ensure that the light emitted by the laser emitter is aligned with the orientation of the lattice column. Specifically, the lattice column can be placed on the ground during installation, naturally parallel to the ground. Then, the laser emitter emits a laser beam at a predetermined height above the ground. If the distance between the laser beam and the ground is the same after a certain distance, it indicates that the laser beam is parallel to the ground. A baffle is placed along the path of the laser beam, and the height of the laser point on the baffle above the ground is measured. If the height of the laser point above the ground is the same as the height of the laser emitter's emission point above the ground, it indicates that the laser beam emitted by the laser emitter is parallel to the lattice column, facilitating subsequent use.

[0039] like Figure 5 As shown, before installing the lattice column, a construction scaffold is typically erected at the construction site, with a certain height. To check the verticality of the lattice column, parallel connecting rods 41 are installed between two construction scaffolds, and the mounting bracket 3 is placed on the connecting rods 41. The two connecting rods 41 are arranged in parallel, allowing the mounting bracket 3 to be placed at any position on the connecting rods 41. During installation, it is important to ensure that the mounting bracket 3 is roughly positioned above the lattice column installation location before lowering the lattice column. During the lowering process, especially during the drilling of the pile hole, the column's posture needs to be closely observed to avoid discovering any tilting after construction is completed. During the inspection process, the position of the mounting bracket 3 is adjusted, which in turn adjusts the position of the measuring tube 1, allowing the laser to enter the measuring tube 1 through the laser inlet 131, thus determining the degree of tilt of the lattice column and facilitating adjustments before curing.

[0040] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A laser-based perpendicularity detection apparatus, characterized by: The laser-based verticality detection device comprises a measuring tube for laser to pass through, an adjusting ring is hingedly arranged on the outer circumferential surface of the measuring tube, a mounting bracket is hingedly arranged on the outer circumferential surface of the adjusting ring, the mounting bracket is used for mounting on a construction frame, the hinging axis of the adjusting ring and the hinging axis of the measuring tube are located in the same horizontal plane and perpendicular to each other, the adjusting ring is located on the upper side of the gravity center of the measuring tube in use, an end surface of one end of the measuring tube is provided with a laser inlet for laser to pass through, and a transparent display mark is arranged on the end surface of the other end of the measuring tube to display the position of laser passing through the top end of the measuring tube, the laser-based verticality detection device further comprises a laser emitter used for mounting on a component to be detected; the measuring tube is a transparent tube with a closed bottom end, and a display liquid for laser display is arranged in the measuring tube.

2. The laser-based plumbness detection device of claim 1, wherein: A bottom end cover is mounted on the bottom end of the measuring tube, the center of the bottom end cover is provided with the laser inlet, and a top cover plate is mounted on the top end of the measuring tube, and the display mark is arranged on the top cover plate.

3. The laser-based plumbness detection device of claim 1 or 2, wherein: The display mark is a plurality of circular scale lines with different diameters and arranged at intervals, and the centers of the circular scale lines are located on the axis of the measuring tube.

4. The laser-based plumbness detection device of claim 1 or 2, wherein: A base ring is mounted on the outer circumferential surface of the measuring tube, first connecting shafts with collinear axes are arranged on opposite sides of the base ring respectively, the first connecting shafts are hingedly connected with the adjusting ring, and the axes of the first connecting shafts are the hinging axes of the adjusting ring and the measuring tube.

5. The laser-based plumbness detection device of claim 4, wherein: A standby ring is further mounted on the outer circumferential surface of the measuring tube, and the structure of the standby ring is the same as that of the base ring.

6. The laser-based plumbness detection device of claim 1 or 2, wherein: The adjusting ring is a square ring.

7. A method of installing a lattice column, characterized by: The laser-based verticality detection device is used, the laser emitter is mounted on the end of a lattice column, the extending direction of the lattice column is kept consistent with the extending direction of the laser emitted by the laser emitter, the measuring tube and the mounting bracket are mounted on the construction frame around the lattice column, the measuring tube is kept free to move relative to the mounting bracket so that the measuring tube is vertically arranged under the action of gravity, the laser is kept to be emitted from the laser inlet on the end surface of the measuring tube and to hit on the display mark on the other end, so that the verticality of the lattice column is displayed by the laser and the lattice column is adjusted.

8. The lattice column installation method according to claim 7, characterized by: When the extending direction of the lattice column is kept consistent with the extending direction of the laser emitted by the laser emitter, the lattice column is kept horizontally on the horizontal ground, and the laser emitter is kept horizontally to the ground.

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