Point lofting single-rod prism auxiliary device

Abstract

The utility model relates to a point lofting single-rod prism auxiliary device, which comprises a square dial, an upper-layer circular ring leveling frame and a lower-layer circular ring leveling frame, the square dial is positioned on the inner side of the upper-layer circular ring leveling frame, and four end corners of the square dial are fixed and flush with the inner side wall of the upper-layer circular ring leveling frame in a welding manner; the lower-layer ring leveling frame is located below the upper-layer ring leveling frame, and a leveling assembly is installed between the lower-layer ring leveling frame and the upper-layer ring leveling frame. The square dial is provided with two sliding arms which are distributed in a crisscross manner, the middle of each sliding arm is hollow, and the crossed position of the two sliding arms forms a placing opening for placing a prism; a level bubble instrument is mounted on the inner side wall of the upper-layer circular ring leveling frame; according to the lofting device, the problem that lofting cannot be accurately and conveniently carried out within the last 30 cm range in the existing lofting work is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of engineering surveying devices, and in particular relates to a single-rod prism auxiliary device for point layout. Background Technology

[0002] Currently, the layout of construction points is mainly accomplished using a total station in conjunction with a single-pole prism. This method requires repeated adjustments to direction and distance to reach the design location. In this layout mode, within the last 30cm of the design location, the distance is adjusted using a steel tape measure, and the point is repeatedly adjusted to approximate the design location.

[0003] The aforementioned layout and adjustment methods involve adjusting direction and distance independently, which affects the accuracy of the layout and reduces work efficiency. Therefore, an auxiliary device is needed to work with the archival prism for layout, which can accurately adjust direction and distance simultaneously within the last 30cm range and facilitate marking the layout position. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a single-rod prism auxiliary device for point layout, so as to solve the problem of inaccurate and convenient layout in the last 30cm range in the existing layout work.

[0005] The purpose of this utility model is achieved through the following technical solution: This single-rod prism auxiliary device for point layout includes a square scale, an upper circular leveling frame, and a lower circular leveling frame. The square scale is located inside the upper circular leveling frame, and the four corners of the square scale are fixed and flush with the inner wall of the upper circular leveling frame by welding. The lower circular leveling frame is located below the upper circular leveling frame, and a leveling component is installed between the two. Two sliding arms are installed on the square scale in a cross shape, and the middle of the sliding arms is hollow. The intersection of the two sliding arms forms a placement opening for placing the prism. A level bubble meter is installed on the inner wall of the upper circular leveling frame.

[0006] The beneficial effects of this utility model are as follows: Compared with the prior art, the square scale on the upper ring leveling frame is leveled by the leveling component, and the leveling is checked with a bubble level. Two sliding arms are arranged in a cross shape on the square scale and a placement opening is provided for placing the prism. This makes it easier to accurately find the target point for the prism. It has the advantages of greatly improving the layout efficiency and simplifying the layout accuracy for beginners.

[0007] As preferred, the leveling assembly comprises three leveling bolts and is divided into a first leveling bolt and a second leveling bolt, the three leveling bolts are distributed equidistantly along the up-down direction of the upper and lower circular ring leveling frames and around the center of the circular ring leveling frame, one of the first leveling bolt is arranged in the center of the square scale dial, and the other two second leveling bolts are distributed in the shape of 120° angle between the first leveling bolt; through the above structure and the equidistant distribution of the three leveling bolts, the horizontal plane of the upper circular ring leveling frame is adjusted in place, and the leveling efficiency is high and convenient.

[0008] As preferred, three through holes are arranged on the wall of the upper circular ring leveling frame, the three leveling bolts pass through the three through holes respectively, the bottoms of the three leveling bolts are fixed on the wall of the lower circular ring leveling frame, and the rotating fasteners are rotatably connected to the three leveling bolts and located below the wall of the upper circular ring leveling frame and abut against the wall; through the above structure, the horizontal adjustment of the upper circular ring leveling frame is realized through the up-down adjustment of the rotating fasteners along the leveling bolts, and the adjustment is convenient.

[0009] As preferred, a centering bolt is arranged on the upper circular ring leveling frame, and the centering bolt and the first leveling bolt are symmetrically distributed along the center of the upper circular ring leveling frame; when measuring, whether the first leveling bolt and the centering bolt coincide is observed to determine whether the lofting auxiliary equipment is centered with the square scale dial.

[0010] As preferred, the two ends of the sliding arm are slidably buckled on two opposite scale scales of the square scale dial, and the two ends of the sliding arm are in the form of hollow and close to the scale scales when coinciding with the scale scales; in this way, the scale scales of the square scale dial can be observed at any time during the sliding and adjustment of the sliding arm, and the operation is more convenient.

[0011] As preferred, the two ends of the sliding arm, which coincide with the scale scales, are provided with pointers for centering the scale scales; through the arrangement of the pointers, the centering between the sliding wall and the scale scales is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a main view structural schematic diagram of the point lofting single-bar prism auxiliary device.

[0013] Figure 2 is a sectional view structural schematic diagram of the point lofting single-bar prism auxiliary device.

[0014] Figure 3 is Figure 1 an enlarged structural schematic diagram of A of the point lofting single-bar prism auxiliary device.

[0015] The labels in the attached diagram are as follows: 1. Square dial; 2. Sliding arm; 3. Pointer; 4. Upper ring leveling frame; 5. Lower ring leveling frame; 6. First leveling bolt; 7. Centering bolt; 8. Second leveling bolt; 9. Rotary fastener; 10. Level bubble meter; 11. Placement port; 12. Leveling assembly. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings: as shown in the drawings Figures 1 to 3 As shown, this utility model includes a square dial 1, an upper circular leveling frame 4, and a lower circular leveling frame 5. The square dial 1 is located inside the upper circular leveling frame 4, and the four corners of the square dial 1 are fixed and flush with the inner wall of the upper circular leveling frame 4 by welding. The lower circular leveling frame 5 is located below the upper circular leveling frame 4, and a leveling component 12 is installed between the two. Two sliding arms 2 are installed on the square dial 1 in a cross shape, and the middle of the sliding arms 2 is hollow. The intersection of the two sliding arms 2 forms a placement opening 11 for placing a prism, which can slide in four directions. A level bubble meter 10 is installed on the inner wall of the upper circular leveling frame 4, and the position of the center bubble of the level bubble meter 10 can be used to determine whether the upper circular leveling frame 4 is in a horizontal position. The upper diameter of the aforementioned placement opening 11 is 2.5cm, the lower diameter is 3mm, and the wall thickness is 2mm. It is a trapezoidal shape with a larger upper diameter and a smaller lower diameter. It is placed at the intersection of the aforementioned sliding arms 2 and slides on the sliding arms 2. The placement opening 11 of the prism is directly opposite the four sides of the square scale 1, which are marked with red lines perpendicular to the plane of the square scale 1. This is used to center the prism of the single-rod prism.

[0017] The leveling assembly 12 includes three leveling bolts, which are divided into first leveling bolts 6 and second leveling bolts 8. The three leveling bolts are distributed at equal intervals along the upper and lower positions of the upper ring leveling frame 4 and the lower ring leveling frame 5 and around the center of the ring leveling frame. One of the first leveling bolts 6 is aligned with the center reading 0 of the square scale 1, and the other two second leveling bolts 8 are distributed at a 120° angle to the first leveling bolt 6.

[0018] The upper ring leveling frame 4 has three through holes on its frame wall. Three leveling bolts pass through the three through holes respectively, and the bottom of the three leveling bolts is fixed to the frame wall of the lower ring leveling frame 5. Each of the three leveling bolts is screwed with a swivel fastener 9, and the swivel fastener 9 is located below the frame wall of the upper ring leveling frame 4 and abuts against it.

[0019] The upper ring leveling frame 4 is provided with centering bolts 7, and the centering bolts 7 and the first leveling bolts 6 are symmetrically distributed along the center of the upper ring leveling frame 4.

[0020] The two ends of the sliding arm 2 are respectively buckled on two opposite scale marks of the square scale disc 1, that is, the end of the sliding arm 2 is a C-shaped buckle ring and is buckled on the scale mark of the square scale disc 1; and the two ends of the sliding arm 2 are in coincidence with the scale mark of the square scale disc 1 and are in a hollow state and closely adhere to the scale mark, and the sliding arm is slid along the scale mark of the square scale disc 1 as a slide rail.

[0021] The two ends of the sliding arm 2 in coincidence with the scale mark are respectively provided with a pointer 3 for centering the scale of the scale mark. The smallest scale on the scale disc is 1mm, and the number of scales is enlarged from the center to both sides.

[0022] The utility model is suitable for accurate lofting in the range of ±15cm at the construction site.

[0023] When the field lofting is in the range of ±15cm, the device is placed in the range, the direction of the scale disc is adjusted, the first leveling bolt 6 and the centering bolt 7 are in coincidence in the observation of the total station instrument, and the red line of the prism placement opening 11 is centered with the center red line of the single-pole prism, so as to ensure that the total station instrument lofting reading is coincident with the coordinate system in the auxiliary device, and the levelness of the square scale disc 1 is adjusted by adjusting the leveling bolt on the upper circular ring leveling frame 4, the levelness of the square scale disc 1 is determined according to the bubble in the leveling bubble instrument 10, the bubble in the leveling bubble instrument 10 is centered by adjusting the leveling bolt, and the device is in a horizontal state. At this time, the reading of the total station instrument can be used to accurately perform point lofting in the range of ±15cm, so that the target point can be accurately found at one time, the lofting efficiency is effectively increased, and the grasping degree of the lofting accuracy of the novice is simplified.

[0024] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A point location setting single prism auxiliary device, comprising a square scale disc (1), an upper layer circular ring leveling frame (4) and a lower layer circular ring leveling frame (5), characterized in that: The square scale disc (1) is located at the inner side of the upper circular leveling frame (4), and the four end angles of the square scale disc (1) are fixed and flush with the inner side wall of the upper circular leveling frame (4) by welding; the lower circular leveling frame (5) is located below the upper circular leveling frame (4), and a leveling assembly (12) is installed between the two; the square scale disc (1) is provided with two cross-distributed sliding arms (2), and the middle of the sliding arm (2) is hollow; the cross position of the two sliding arms (2) forms a placing opening (11) for placing a prism; the inner side wall of the upper circular leveling frame (4) is provided with a level bubble instrument (10).

2. The point location staking monopod prism aid of claim 1, wherein: The leveling assembly (12) includes three leveling bolts and is divided into a first leveling bolt (6) and a second leveling bolt (8); the three leveling bolts are distributed at equal intervals along the up-down direction of the upper circular leveling frame (4) and the lower circular leveling frame (5) and around the center of the circular leveling frame, one of the first leveling bolts (6) is arranged at the center of the square scale disc (1) with a reading of 0, and the other two second leveling bolts (8) are distributed at an angle of 120° between the first leveling bolt (6).

3. The point location staking monopod prism aid of claim 2, wherein: Three through holes are arranged on the wall of the upper circular leveling frame (4), the three leveling bolts pass through the three through holes respectively, and the bottoms of the three leveling bolts are fixed on the wall of the lower circular leveling frame (5); the three leveling bolts are all provided with a rotating fastener (9), and the rotating fastener (9) is located below the wall of the upper circular leveling frame (4) and abuts against the wall.

4. The point location staking monopod prism aid of claim 2, wherein: A centering bolt (7) is arranged on the upper circular leveling frame (4), and the centering bolt (7) and the first leveling bolt (6) are symmetrically distributed along the center of the upper circular leveling frame (4).

5. The point location staking monopod prism assist device of claim 1, wherein: The two ends of the sliding arm (2) are slidably buckled on two opposite scale scales of the square scale disc (1), and the two ends of the sliding arm (2) are hollow and tightly attached to the scale scales at the coinciding positions of the sliding arm (2) and the scale scales.

6. The point location staking monopod prism aid of claim 5, wherein: The two ends of the sliding arm (2) at the coinciding positions of the scale scales are provided with pointers (3) for centering the scale scales.

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