Multifunctional surveying and mapping ruler

Abstract

The utility model relates to surveying and mapping ruler technical field especially relates to a kind of surveying and mapping ruler for multifunctional surveying and mapping.The technical scheme of it includes: main ruler, two triangular rulers symmetrically arranged are slidably installed on main ruler, long strip shape limiting mouth is arranged on main ruler, marking auxiliary device is slidably installed at long strip shape limiting mouth, marking auxiliary device is movably installed with marking pen inside by elastic pressing structure, center positioning block is arranged on main ruler, center positioning block is composed of connecting round seat and pressure block, connecting round seat is movably inserted in the circular through-hole drilled in main ruler.The utility model can guarantee basic measurement demand by main ruler and triangular ruler, press down center positioning block and rotate the other end of main ruler, the drawing of arc can be completed, so that surveying and mapping ruler has functional diversity, when using main ruler to measure, marking auxiliary device can be pressed, and fast marking point position can be carried out on drawing, without needing to take pen separately to mark on drawing, effectively improve the convenience of surveying and mapping operation.

Description

Technical Field

[0001] This utility model relates to the field of surveying ruler technology, and in particular to a multifunctional surveying ruler for surveying. Background Technology

[0002] A surveying ruler is a common measuring tool that can accurately measure preliminary surveying drawings. In practical use, existing surveying rulers are usually used as measuring tools, including straight rulers, triangle rulers, and arc rulers. There are also rulers with combined structures that have multiple measuring functions, achieving the effect of measuring multiple data with a single ruler. By placing the surveying ruler on the drawing, it can measure straight lines, right angles, arcs, etc.

[0003] However, in actual use, the main function of the multi-functional surveying ruler is still to measure the length or curvature of existing lines on the drawing. When it is necessary to add line segments or arcs to the drawing, the length or radius of the arc must be measured first, and then the surveying pen must be used to mark the points on the drawing. Finally, multiple marks are connected to form a line segment. Therefore, during surveying operations, one hand needs to hold the surveying ruler and the other hand needs to hold the surveying pen. Moreover, measurement and drawing are difficult to perform simultaneously, which significantly reduces the convenience of surveying operations. Therefore, this application proposes a multi-functional surveying ruler that allows measurement and drawing to be performed simultaneously. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art that it is difficult to perform measurement and drawing simultaneously, and to propose a multifunctional surveying ruler that enables simultaneous measurement and drawing operations.

[0005] The technical solution of this utility model is as follows: A multifunctional surveying ruler includes a main ruler, on which two symmetrically arranged triangular rulers are slidably mounted. A long strip-shaped limiting opening is provided on the main ruler, and a marking auxiliary device is slidably mounted at the long strip-shaped limiting opening. A marker pen is movably mounted inside the marking auxiliary device through an elastic pressing structure. The tip of the marker pen extends into the inner section of the long strip-shaped limiting opening. A first pointer is fixedly mounted on the outer wall of the marking auxiliary device. A center positioning block is provided on the main ruler. The center positioning block consists of a connecting round seat and a pressure block. The connecting round seat is movably inserted into a circular through hole drilled in the main ruler. The pressure block is fixed to the top of the connecting round seat. The bottom end of the connecting round seat has an arc surface structure.

[0006] Optionally, the elastic pressing structure includes a top cover, a presser, and a spring. The bottom end of the spring is fixed to the inner bottom of the marking aid. A limit ring is fixedly installed on the outer wall of the marker. The spring is sleeved on the outer wall of the marker and fixedly connected to the limit ring. The top cover is threadedly installed at the top opening of the marking aid. The presser is movably installed on the top cover.

[0007] Optionally, the presser includes a cap, a connecting block, and a limiting circular plate. The cap is embedded in a circular groove carved on the top of the top cover and is movably connected thereto. The top of the connecting block is embedded in an internal threaded groove carved on the bottom of the cap and is threadedly connected thereto. The limiting circular plate is fixed to the lower surface of the connecting block and is located below the top cover.

[0008] Optionally, two limiting plates are fixedly installed at the bottom of the marking aid. The limiting plates are inserted into the elongated limiting port. Limiting bolts are threaded onto the limiting plates. One end of the limiting bolt is inserted into a limiting groove carved on the inner wall of the elongated limiting port and slidably connected thereto.

[0009] Optionally, a thin plate is provided on the side of the triangle away from the main scale. One side of the thin plate is provided with an outer alignment surface, and the other side of the thin plate is provided with an inner alignment surface. A second pointer is fixedly installed on the top of the triangle and on the side closer to the main scale. An outer needle and an inner needle are fixedly installed on the second pointer. The outer needle and the outer alignment surface are located on the same horizontal axis, and the inner needle and the inner alignment surface are located on the same horizontal axis.

[0010] Optionally, a limiting groove is chiseled on one side of the main ruler, and a limiting slider is fixedly installed on the triangular ruler at one end near the main ruler, with the limiting slider slidably connected to the limiting groove.

[0011] Optionally, the top of the main ruler and both sides of the elongated limiting opening are provided with first scale lines, the first pointer is set above the matching first scale line, the top of the main ruler and the side near the triangle ruler are provided with second scale lines, and both the outer needle and the inner needle are located above the second scale line.

[0012] Optionally, a central observation channel is jointly excavated inside the connecting round seat and the pressure block, and a transparent glass bead is rotatably installed inside the central observation channel, with the bottom end of the transparent glass bead extending to the outside of the connecting round seat.

[0013] Compared with the prior art, this application includes at least one of the following beneficial technical effects: the main scale and triangle scale can ensure basic measurement needs; pressing the center positioning block and rotating the other end of the main scale can complete the drawing of the arc, making the surveying ruler functionally versatile; when using the main scale for measurement, the marking aid can be pressed to quickly mark points on the drawing without having to use a pen to mark on the drawing, ensuring that measurement and drawing are carried out simultaneously, effectively improving the convenience of surveying operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the triangular ruler structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the marking aid of this utility model;

[0017] Figure 4 This is a schematic diagram of the circular positioning block structure of this utility model.

[0018] Attached label: 1. Main scale;

[0019] 2. Marking aid; 21. Marker pen; 211. Limiting ring; 22. Top cover; 23. Presser; 231. Cap; 232. Connecting block; 233. Limiting round plate; 24. Spring; 25. Limiting insert plate; 251. Limiting bolt; 26. First pointer;

[0020] 3. Long, narrow limiting port;

[0021] 4. First scale mark;

[0022] 5. Center positioning block; 51. Connecting round base; 52. Pressure block; 53. Center observation channel; 54. Transparent glass bead;

[0023] 6. Limiting slide groove;

[0024] 7. Second scale mark;

[0025] 8. Triangle ruler; 81. Thin plate; 811. Outer alignment surface; 812. Inner alignment surface; 82. Second pointer; 821. Outer needle; 822. Inner needle; 83. Limiting slider. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example

[0028] like Figures 1-4As shown, this utility model proposes a multifunctional surveying ruler, including a main ruler 1. A long, narrow limiting opening 3 is carved into the main ruler 1. A marking aid 2 is slidably installed at the long, narrow limiting opening 3. A marker pen 21 is movably installed inside the marking aid 2. The tip of the marker pen 21 extends into the area inside the long, narrow limiting opening 3. A top cover 22 is threaded onto the top opening of the marking aid 2. A cap 231 is movably installed in the groove at the top of the top cover 22. A connecting block 232 is threaded onto the bottom of the cap 231. A limiting circular plate 233 is fixedly installed at the bottom of the connecting block 232, below the top cover 22. The cap 231, connecting block 232, and limiting circular plate 233 together form a complete system. A presser 23 is installed above the marker pen 21. Pressing the presser 23 downwards pushes the marker pen 21 downwards, ensuring that the tip of the marker pen 21 can contact the drawing, facilitating marking on the drawing. A spring 24 is movably sleeved on the outer wall of the marker pen 21. The bottom end of the spring 24 is fixed to the inner bottom of the marking aid 2, and the top end of the spring 24 is fixedly connected to a limiting ring 211 fixedly installed on the outer wall of the marker pen 21. After releasing the presser 23, the spring 24 can drive the marker pen 21 upwards, ensuring that the tip of the marker pen 21 can retract into the elongated limiting opening 3, preventing the marker pen 21 from leaving marks on the drawing when measuring the drawing.

[0029] A circular through hole is drilled at one end of the main ruler 1. A connecting round seat 51 is movably inserted into the circular through hole. A pressure block 52 is fixedly installed at the top of the connecting round seat 51 and above the main ruler 1. The connecting round seat 51 and the pressure block 52 together form the center positioning block 5. The bottom end of the connecting round seat 51 has an arc surface structure. Press the center positioning block 5 down and make the bottom end of the connecting round seat 51 contact the drawing. At this time, rotate the end of the main ruler 1 away from the center positioning block 5, and press the presser 23 down during the rotation. An arc can be drawn on the drawing, ensuring the functional versatility of the surveying ruler.

[0030] Furthermore, two triangular rulers 8 are slidably mounted on one side of the main ruler 1. A thin plate 81 is provided on the end of each triangular ruler 8 furthest from the main ruler 1. The thin plate 81 has two opposing outer alignment surfaces 811 and an inner alignment surface 812. A second pointer 82 is fixedly mounted on the top of the triangular ruler 8 furthest from the thin plate 81. An outer needle 821 and an inner needle 822 are fixedly mounted on the second pointer 82. The outer needle 821 and the outer alignment surface 811 are located on the same horizontal axis, and the inner needle 822 and the inner alignment surface 822 are aligned on the same horizontal axis. With 812 located on the same horizontal axis, when measuring cylindrical parts, the outer alignment surface 811 is attached to the inner wall of the cylindrical part, and the distance between the two outer needles 821 is observed by referring to the second scale line 7. The inner diameter of the cylindrical part can then be measured. Similarly, the inner alignment surface 812 is attached to the outer wall of the cylindrical part, and the distance between the two inner needles 822 is observed by referring to the second scale line 7. The outer diameter of the cylindrical part can then be measured. This effectively improves the convenience of measuring cylindrical parts.

[0031] Secondly, a limiting groove 6 is chiseled on the main ruler 1 and on the side near the triangle ruler 8. A limiting slider 83 is fixedly installed on the triangle ruler 8. The limiting slider 83 is inserted into the limiting groove 6 and slidably connected to it, ensuring that the triangle ruler 8 can slide stably along the limiting groove 6, which facilitates the adjustment of the distance between the two triangle rulers 8.

[0032] Furthermore, two limiting plates 25 are fixedly installed at the bottom of the marking aid 2. The limiting plates 25 are inserted into the elongated limiting port 3. The limiting plates 25 are threaded with limiting bolts 251. One end of the limiting bolts 251 is inserted into the limiting groove carved on the inner side wall of the elongated limiting port 3 and slidably connected with it, ensuring that the marking aid 2 can slide stably along the elongated limiting port 3 and preventing the marking aid 2 from falling off the main ruler 1.

[0033] Secondly, a first pointer 26 is fixedly installed on the outer wall of the marking aid 2. The top of the main ruler 1 and the positions on both sides of the elongated limiting port 3 are provided with first scale lines 4. The first pointer 26 is set above the first scale lines 4. By referring to the position where the first pointer 26 and the first scale lines 4 are aligned, the distance between the marking aid 2 and the center positioning block 5 can be observed. When drawing an arc, the radius of the arc can be adjusted to make it easier to draw an arc that meets the requirements.

[0034] It is worth noting that a center observation channel 53 is jointly carved into the connecting round base 51 and the pressure block 52. A transparent glass bead 54 is rotatably installed in the center observation channel 53, and the bottom end of the transparent glass bead 54 extends to the outside of the connecting round base 51. Through the center observation channel 53 and the transparent glass bead 54, the surveyor can observe the center position on the drawing from above the main scale 1. When drawing an arc, the bottom end of the transparent glass bead 54 contacts the drawing. Since the contact area between the transparent glass bead 54 and the drawing is small and it can rotate freely, the frictional resistance encountered by the main scale 1 when rotating can be reduced, effectively improving the rotation efficiency of the main scale 1.

[0035] In this embodiment, the main ruler 1 can first measure straight lines, while the set square 8 can not only measure right angles, but also, by adjusting the distance between the two set squares 8 and combining the thin plate 81 at their ends, facilitate the measurement of the inner and outer diameters of cylindrical parts, ensuring the basic function of the measuring ruler. When a straight line needs to be drawn on the drawing, the presser 23 can be pressed down, which in turn pushes the marker pen 21 downward. When the tip of the marker pen 21 contacts the drawing, the surveyor can push the marking aid 2 to slide laterally along the long strip-shaped limiting port 3, making it convenient to draw a straight line that meets the requirements on the drawing. During measurement, the marker pen 21 can also be used to mark points on the drawing. When an arc needs to be drawn on the drawing, the center of the circle is first marked on the drawing. Then press down on the pressure block 52 to ensure that the connecting round seat 51 moves downward. When the transparent glass bead 54 installed at the bottom of the connecting round seat 51 contacts the center of the circle on the drawing, the surveyor can use his other hand to press down on the marking aid 2. At this time, with the connecting round seat 51 as the center point, rotate the end of the main ruler 1 away from the center marking point. Since the surveyor holds down the presser 23 on the top of the marking aid 2 with one hand, the tip of the marker pen 21 can contact the drawing. During the rotation of the main ruler 1, an arc trajectory can be drawn on the drawing. This not only increases the functionality of the surveying ruler, but also eliminates the need to use a pen separately to mark points and draw lines on the drawing. This allows measurement and drawing operations to be carried out simultaneously, effectively improving the convenience of surveying operations.

[0036] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multifunctional surveying ruler, comprising a main ruler (1), wherein two symmetrically arranged triangular rulers (8) are slidably mounted on the main ruler (1), characterized in that, Also includes: A long strip-shaped limiting opening (3) is provided on the main ruler (1). A marking aid (2) is slidably installed at the long strip-shaped limiting opening (3). A marker pen (21) is movably installed inside the marking aid (2) through an elastic pressing structure. The tip of the marker pen (21) extends to the inner section of the long strip-shaped limiting opening (3). A first pointer (26) is fixedly installed on the outer wall of the marking aid (2). The center positioning block (5) is set on the main scale (1). The center positioning block (5) consists of a connecting round seat (51) and a pressure block (52). The connecting round seat (51) is movably inserted into the circular through hole drilled on the main scale (1). The pressure block (52) is fixed to the top of the connecting round seat (51). The bottom end of the connecting round seat (51) has an arc surface structure.

2. The multifunctional surveying ruler for surveying according to claim 1, characterized in that, The elastic pressing structure includes a top cover (22), a presser (23), and a spring (24). The bottom end of the spring (24) is fixed to the inner bottom of the marking aid (2). A limiting ring (211) is fixedly installed on the outer wall of the marker (21). The spring (24) is sleeved on the outer wall of the marker (21) and fixedly connected to the limiting ring (211). The top cover (22) is threaded onto the top opening of the marking aid (2). The presser (23) is movably installed on the top cover (22).

3. A multifunctional surveying ruler for surveying according to claim 2, characterized in that, The presser (23) includes a cap (231), a connecting block (232), and a limiting circular plate (233). The cap (231) is embedded in a circular groove carved on the top of the top cover (22) and is movably connected to it. The top of the connecting block (232) is embedded in an internal threaded groove carved on the bottom of the cap (231) and is threadedly connected to it. The limiting circular plate (233) is fixed on the lower surface of the connecting block (232) and is located below the top cover (22).

4. A multifunctional surveying ruler for surveying according to claim 3, characterized in that, The bottom of the marking aid (2) is fixedly installed with two limiting plates (25). The limiting plates (25) are inserted into the elongated limiting port (3). The limiting plates (25) are threaded with limiting bolts (251). One end of the limiting bolts (251) is inserted into the limiting groove carved on the inner side wall of the elongated limiting port (3) and slidably connected with it.

5. A multifunctional surveying ruler for surveying according to claim 1, characterized in that, A thin plate (81) is provided on the side of the triangle (8) away from the main ruler (1). An outer alignment surface (811) is provided on one side of the thin plate (81), and an inner alignment surface (812) is provided on the other side of the thin plate (81). A second pointer (82) is fixedly installed on the top of the triangle (8) and on the side closer to the main ruler (1). An outer needle (821) and an inner needle (822) are fixedly installed on the second pointer (82). The outer needle (821) and the outer alignment surface (811) are located on the same horizontal axis, and the inner needle (822) and the inner alignment surface (812) are located on the same horizontal axis.

6. A multifunctional surveying ruler for surveying according to claim 5, characterized in that, A limiting groove (6) is chiseled on one side of the main ruler (1), and a limiting slider (83) is fixedly installed on the triangular ruler (8) at one end near the main ruler (1). The limiting slider (83) is slidably connected to the limiting groove (6).

7. A multifunctional surveying ruler for surveying according to claim 5, characterized in that, The main ruler (1) has a first scale line (4) on the top and on both sides of the elongated limiting opening (3). The first pointer (26) is set above the matching first scale line (4). The main ruler (1) has a second scale line (7) on the top and on the side near the triangle ruler (8). The outer needle (821) and the inner needle (822) are both located above the second scale line (7).

8. A multifunctional surveying ruler for surveying according to claim 1, characterized in that, The connecting round base (51) and the pressure block (52) are both carved with a central observation channel (53). A transparent glass bead (54) is rotatably installed in the central observation channel (53), and the bottom end of the transparent glass bead (54) extends to the outside of the connecting round base (51).

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