An engineering surveying aid for circular arc type structures

Abstract

The application discloses an engineering surveying auxiliary device for circular arc type structure positioning and relates to the technical field of engineering surveying; the device is provided with a sliding gear and a rack; when the up-down position of the first aluminum alloy arc-shaped plate is adjusted, the sliding gear movably connected with the first aluminum alloy arc-shaped plate is engaged with the rack to roll; when initially installed, the first aluminum alloy arc-shaped plate is in a horizontal position; after installation is completed, the up-down of the two sides of the first aluminum alloy arc-shaped plate is synchronously completed through the engagement relationship of the sliding gear and the rack; the engagement relationship has relatively high adhesion; a large gap does not need to be arranged to satisfy the sliding guide rail structure; the blocking piece outside the inner limiting groove limits the outside of the sliding gear; the two are closely attached; the lubrication mode can be used to reduce the friction force, so that the sliding gear cannot be separated and the rotation is not affected.

Description

Technical Field

[0001] This invention belongs to the field of engineering measurement technology, specifically an engineering measurement auxiliary device for positioning arc-shaped structures. Background Technology

[0002] Engineering surveying is a discipline that studies various surveying tasks carried out during the surveying, design, construction, and operation management phases of various engineering projects. It is an applied discipline that studies the theoretical methods and techniques for measuring and depicting concrete geometric entities and surveying and setting out abstract geometric entities in Earth's space (ground, underground, underwater, and air). Its primary research focus is on building engineering, machinery, and equipment.

[0003] When conducting engineering measurements on arc-shaped structures, auxiliary devices are required. The conventional method involves using an arc-shaped plate as an aid. The vertical position of the arc-shaped plate is adjusted and compared with the outer side of the arc-shaped structure to find two symmetrical points that coincide and mark them. Then, based on the fixed center point and the points laid out, an arc is drawn to complete the engineering measurement of the arc-shaped structure. However, in actual use, the position of the arc-shaped plate is prone to deviation because there are gaps in the adjustment track structure, and the two sides cannot be raised and lowered synchronously, resulting in low accuracy.

[0004] Now, a novel engineering measurement auxiliary device for positioning circular arc structures is proposed to address the above-mentioned shortcomings. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art;

[0006] Therefore, the present invention proposes an engineering measurement auxiliary device for positioning arc-shaped structures, including an aluminum alloy base, with aluminum alloy mounting grooves fixedly installed at both ends of the aluminum alloy base.

[0007] The front end of the aluminum alloy mounting groove is provided with a first aluminum alloy arc plate. Two sets of sliding gears are movably connected to both sides of the rear end of the first aluminum alloy arc plate. An inner limiting groove is opened inside the aluminum alloy mounting groove. Racks are vertically fixed on both sides inside the inner limiting groove. Baffles are fixed on both sides of the inner limiting groove. The two sets of sliding gears are embedded in both sides inside the inner limiting groove and mesh with the racks.

[0008] Furthermore, the aluminum alloy mounting groove and the aluminum alloy base are fixed together by connecting pieces at the connection point, and the connecting pieces are fixed by bolts.

[0009] Furthermore, sliding grooves are provided inside both sides of the first aluminum alloy arc plate, and a second aluminum alloy arc plate is inserted into the sliding groove. A second locking bolt for pressing and locking the second aluminum alloy arc plate is threaded inside the sliding groove.

[0010] Furthermore, scale lines are provided on the outer surfaces of both the first and second aluminum alloy arc plates.

[0011] Furthermore, two sets of guide rods are symmetrically arranged at the front end of the first aluminum alloy arc plate. A fixing plate is fixed at the connection between the top of the guide rod and the first aluminum alloy arc plate, and the fixing plate is fixed to the first aluminum alloy arc plate by bolts.

[0012] Furthermore, two sets of fixing grooves are symmetrically fixed at the front end of the aluminum alloy base, and the fixing grooves are fixed to the aluminum alloy base by bolts.

[0013] Furthermore, the bottom of the guide rod is inserted into the interior of the fixing groove, and the interior of the fixing groove is threaded with a first locking bolt for pressing and locking the guide rod.

[0014] Furthermore, a center indicator mark is fixed at the center point of the bottom of the first aluminum alloy curved plate.

[0015] Furthermore, a level is fixed at the center point of the bottom of the aluminum alloy base.

[0016] Furthermore, a handle seat is fixedly connected to the front end of the aluminum alloy base, and an inner limiting groove is movably hinged to the outside of the handle seat. A damping block is provided at the connection between the inner limiting groove and the handle seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This application features a sliding gear and a rack. When adjusting the vertical position of the first aluminum alloy arc plate, the sliding gear and rack, which are movably connected to the first aluminum alloy arc plate, mesh and roll. During initial installation, the first aluminum alloy arc plate is in a horizontal position. After installation, the lifting and lowering of both sides of the first aluminum alloy arc plate are completed synchronously through the meshing relationship of the sliding gear and rack. The meshing relationship has a high degree of fit, so a large gap is not required to meet the requirements of the sliding guide structure. Furthermore, the baffle outside the inner limiting groove limits the external sliding gear, and the two are in close contact. The friction can be reduced through lubrication to ensure that the sliding gear will not disengage and will not affect rotation.

[0019] This application, by setting guide rods and fixing grooves, allows the guide rods on both sides to slide synchronously inside the fixing grooves when the first aluminum alloy arc plate is adjusted. This can limit the lifting and lowering of the first aluminum alloy arc plate. In addition, with the help of baffles, the stability of the lifting and lowering adjustment is further improved. When the first aluminum alloy arc plate stops adjusting, the engineers lock the first locking bolt to ensure that the first aluminum alloy arc plate is in a stable state. The scale lines on the outside of the first and second aluminum alloy arc plates help to find two symmetrical points that coincide with the arc structure of this device, and then mark them. Then, in combination with the fixed center indicator, the arc is drawn according to the layout points.

[0020] This application incorporates an inner limiting groove and a level. The level is used for leveling and improves functionality. At the same time, the inner limiting groove makes the device easy to carry. The inner limiting groove is rotated 90° outward, and the damping block between it and the handle seat keeps the inner limiting groove level, making it easy to hold. Attached Figure Description

[0021] Figure 1 This is a frontal cross-sectional view of the present invention.

[0022] Figure 2 This is a front view schematic diagram of the assembly method of the first aluminum alloy arc plate and the second aluminum alloy arc plate of this utility model;

[0023] Figure 3 This is a front view structural diagram of the sliding gear and rack connection method of this utility model;

[0024] Figure 4 This is a top view schematic diagram of the first aluminum alloy arc-shaped plate and sliding gear of this utility model.

[0025] In the diagram: 1. Aluminum alloy mounting groove; 2. First aluminum alloy curved plate; 3. Scale line; 4. Second aluminum alloy curved plate; 5. Connecting piece; 6. Aluminum alloy base; 7. Guide rod; 8. Handle seat; 9. Fixing groove; 10. First locking bolt; 11. Fixing piece; 12. Sliding groove; 13. Second locking bolt; 14. Baffle; 15. Sliding gear; 16. Rack; 17. Inner limit groove; 18. Center indicator mark; 19. Level. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0027] Please see Figures 1-4 This application provides an engineering measurement auxiliary device for positioning arc-shaped structures;

[0028] As an embodiment of this application, it specifically includes:

[0029] It includes an aluminum alloy base 6, with aluminum alloy mounting grooves 1 fixedly installed at both ends of the aluminum alloy base 6, and a first aluminum alloy arc plate 2 provided at the front end of the aluminum alloy mounting groove 1.

[0030] Two sets of sliding gears 15 are movably connected to each side of the rear end of the first aluminum alloy arc plate 2. An inner limiting groove 17 is vertically opened inside the aluminum alloy mounting groove 1. A rack 16 is vertically fixed on both sides inside the inner limiting groove 17. A baffle 14 is fixed on the left and right sides of the front end of the inner limiting groove 17. The two sets of sliding gears 15 are embedded in the inner limiting groove 17 on both sides and mesh with the rack 16.

[0031] As a second embodiment of this application, it specifically includes:

[0032] An aluminum alloy base 6 has aluminum alloy mounting grooves 1 on both sides of its top. Connecting plates 5 are fixed to the front and rear ends of the connection between the aluminum alloy mounting groove 1 and the aluminum alloy base 6 by bolts. Four sets of connecting plates 5 assemble and fix the aluminum alloy mounting groove 1 and the aluminum alloy base 6. A first aluminum alloy arc plate 2 is provided at the front end of the aluminum alloy mounting groove 1, and two sets of sliding gears 15 are movably connected to the two sides of the rear end of the first aluminum alloy arc plate 2. An inner limiting groove 17 is vertically opened inside the aluminum alloy mounting groove 1. A rack 16 is vertically fixed on both sides inside the inner limiting groove 17. A baffle 14 is fixed on the left and right sides of the front end of the inner limiting groove 17. The two sets of sliding gears 15 are embedded in the two sides inside the inner limiting groove 17 and mesh with the rack 16.

[0033] The first aluminum alloy arc plate 2 has sliding grooves 12 on both sides, and the second aluminum alloy arc plate 4 is inserted into the sliding groove 12. The sliding groove 12 is threaded with a second locking bolt 13 for pressing and locking the second aluminum alloy arc plate 4.

[0034] The outer surfaces of both the first aluminum alloy arc plate 2 and the second aluminum alloy arc plate 4 are provided with scale lines 3.

[0035] Specifically, such as Figure 1 , Figure 3 and Figure 4 When adjusting the vertical position of the first aluminum alloy arc plate 2, the sliding gear 15 and the rack 16, which are movably connected to the first aluminum alloy arc plate 2, mesh and roll. During initial installation, the first aluminum alloy arc plate 2 is in a horizontal position. After installation, the lifting and lowering of both sides of the first aluminum alloy arc plate 2 are completed synchronously through the meshing relationship of the sliding gear 15 and the rack 16. The meshing relationship has a high fit, so there is no need to set a large gap to meet the sliding guide structure. In addition, the baffle 14 outside the inner limiting groove 17 limits the outside of the sliding gear 15, and the two are in close contact. The friction can be reduced by lubrication to ensure that the sliding gear 15 will not disengage and will not affect the rotation.

[0036] Two sets of guide rods 7 are symmetrically arranged at the front end of the first aluminum alloy arc plate 2. A fixing plate 11 is fixed at the connection between the top of the guide rod 7 and the first aluminum alloy arc plate 2. The fixing plate 11 is fixed to the first aluminum alloy arc plate 2 by bolts. Two sets of fixing grooves 9 are symmetrically fixed at the front end of the aluminum alloy base 6. The fixing grooves 9 are fixed to the aluminum alloy base 6 by bolts.

[0037] The bottom of the guide rod 7 is inserted into the interior of the fixing groove 9, and the interior of the fixing groove 9 is threaded with a first locking bolt 10 for pressing and locking the guide rod 7;

[0038] A center indicator mark 18 is fixed at the center point of the bottom of the first aluminum alloy curved plate 2;

[0039] Specifically, such as Figure 1 and Figure 2 As shown, when the first aluminum alloy arc plate 2 is adjusted, the guide rods 7 on both sides slide synchronously inside the fixed groove 9, which can limit the lifting and lowering of the first aluminum alloy arc plate 2. In addition, with the baffle 14, the stability of the lifting and lowering adjustment is further improved. When the first aluminum alloy arc plate 2 stops adjusting, the engineer locks the first locking bolt 10 to ensure that the first aluminum alloy arc plate 2 is in a stable state. The scale line 3 on the outside of the first aluminum alloy arc plate 2 and the second aluminum alloy arc plate 4 helps to find two symmetrical points that coincide with the arc structure of this device, and then marks them. Then, in conjunction with the fixed center indicator 18, the arc is drawn according to the layout point.

[0040] A level 19 is fixed at the center point of the bottom of the aluminum alloy base 6;

[0041] A handle seat 8 is fixedly connected to the front end of the aluminum alloy base 6, and an inner limiting groove 17 is movably hinged to the outside of the handle seat 8. A damping block is provided at the connection between the inner limiting groove 17 and the handle seat 8.

[0042] Specifically, such as Figure 1 As shown, the level 19 is used for leveling and improves functionality. At the same time, the inner limiting groove 17 makes the device easy to carry. The inner limiting groove 17 is rotated 90° outward, and the damping block between it and the handle seat 8 keeps the inner limiting groove 17 level, making it easy to hold.

[0043] Working principle: When using this utility model, when adjusting the up and down position of the first aluminum alloy arc plate 2, the sliding gear 15 and rack 16, which are movably connected to the first aluminum alloy arc plate 2, mesh and roll. When the first aluminum alloy arc plate 2 is adjusted, the guide rods 7 on both sides slide synchronously inside the fixed groove 9, which can limit the lifting and lowering of the first aluminum alloy arc plate 2. In addition, with the baffle 14, the stability of the lifting and lowering adjustment is further improved. When the first aluminum alloy arc plate 2 stops adjusting, the engineer locks the first locking bolt 10 to ensure that the first aluminum alloy arc plate 2 is in a stable state. The scale line 3 on the outside of the first aluminum alloy arc plate 2 and the second aluminum alloy arc plate 4 helps to find two symmetrical points that coincide with the arc structure of this device, and then marks them. Then, combined with the fixed center indicator 18, an arc is drawn according to the layout point. The inner limiting groove 17 is rotated 90° outward. The damping block between it and the handle seat 8 keeps the inner limiting groove 17 horizontal, which is convenient for gripping.

[0044] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. An engineering measurement auxiliary device for positioning arc-shaped structures, comprising an aluminum alloy base, characterized in that, The aluminum alloy base has aluminum alloy mounting grooves fixedly installed at both ends. The front end of the aluminum alloy mounting groove is provided with a first aluminum alloy arc plate. Two sets of sliding gears are movably connected to both sides of the rear end of the first aluminum alloy arc plate. An inner limiting groove is opened inside the aluminum alloy mounting groove. Racks are vertically fixed on both sides inside the inner limiting groove. Baffles are fixed on both sides of the inner limiting groove. The two sets of sliding gears are embedded in both sides inside the inner limiting groove and mesh with the racks.

2. The engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, The aluminum alloy mounting slot and the aluminum alloy base are fixed together by connecting pieces at the connection point, and the connecting pieces are fixed by bolts.

3. The engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, The first aluminum alloy arc plate has sliding grooves on both sides, and a second aluminum alloy arc plate is inserted into the sliding groove. The sliding groove is threaded with a second locking bolt for pressing and locking the second aluminum alloy arc plate.

4. The engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, Both the first and second aluminum alloy curved plates have scale lines on their outer surfaces.

5. The engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, Two sets of guide rods are symmetrically arranged at the front end of the first aluminum alloy arc plate. A fixing plate is fixed at the connection between the top of the guide rod and the first aluminum alloy arc plate. The fixing plate is fixed to the first aluminum alloy arc plate by bolts.

6. The engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 5, characterized in that, The front end of the aluminum alloy base has two sets of fixing grooves that are symmetrically fixed, and the fixing grooves are fixed to the aluminum alloy base by bolts.

7. The engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, The bottom of the guide rod is inserted into the interior of the fixing groove, and the interior of the fixing groove is threaded with a first locking bolt for pressing and locking the guide rod.

8. An engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, A center indicator mark is fixed at the center point of the bottom of the first aluminum alloy curved plate.

9. An engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, A level is fixed at the center point of the bottom of the aluminum alloy base.

10. An engineering measurement auxiliary device for positioning an arc-shaped structure according to claim 1, characterized in that, The front end of the aluminum alloy base is fixedly connected to a handle seat, and the handle seat is externally hinged with an inner limiting groove. A damping block is provided at the connection between the inner limiting groove and the handle seat.

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