Multifunctional measuring scale for surveying and mapping engineering

Abstract

The utility model discloses a multifunctional measuring scale for surveying and mapping engineering, which comprises a main scale, a movable plate and an auxiliary scale, the movable plate and the auxiliary scale are movably mounted on the main scale, a protractor is arranged at the top of the movable plate, the auxiliary scale is coaxially and rotatably mounted above the protractor and limited by an elastic component, and a sliding block is slidably mounted at the top of the auxiliary scale. One end of the sliding block is rotatably provided with a pen abutting piece, so that the bottom of the pen abutting piece is flush with the bottom wall of the main ruler when the pen abutting piece rotates to be in a vertical state. In the utility model, the movable plate is locked and positioned by matching with the main ruler through the cam, and the auxiliary ruler is subjected to angle limiting through the spring piece, so that the position of the auxiliary ruler can be conveniently and quickly adjusted according to the drawing requirement, and the arrangement of the pen propping piece on the auxiliary ruler effectively solves the problem of surveying and mapping deviation caused by a gap between the auxiliary ruler and paper, thereby effectively improving the precision of the measuring ruler; the structure is simple, operation is convenient and fast, convenience is brought to engineering surveying and mapping, and meanwhile the high use value is achieved.

Description

Technical Field

[0001] The utility model relates to the field of measuring rulers, in particular to a multifunctional measuring ruler for surveying and mapping engineering. Background Art

[0002] In the field of building construction, a measuring ruler is a basic and critical tool for making precise measurements and drawings to ensure the accuracy and quality of construction. However, traditional measuring rulers have some limitations in practical applications.

[0003] Conventional measuring rulers require hand pressure to position when measuring angles, and are relatively unused when drawing drawings. In addition, in order to facilitate carrying, measuring rulers usually adopt a folding design, but this design causes a height difference between the secondary ruler and the paper. When drawing, the line may deviate from the expected angle due to the tilt of the pen tip, affecting the accuracy of the surveying and mapping. Utility Model Content

[0004] The utility model aims to provide a multifunctional measuring ruler for surveying and mapping engineering, so as to solve the problem that the height difference between the sub-rule and the paper of the conventional measuring ruler proposed in the background technology affects the surveying and mapping accuracy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multifunctional measuring ruler for surveying and mapping engineering, comprising a main ruler and a movable plate and a secondary ruler movably mounted on the main ruler, a protractor being provided on the top of the movable plate, the secondary ruler being coaxially rotatably mounted above the protractor and limited by an elastic component, a slider being slidably mounted on the top of the secondary ruler, a pen-stop piece being rotatably mounted on one end of the slider so that the bottom of the pen-stop piece is flush with the bottom wall of the main ruler when the pen-stop piece is rotated to a vertical state.

[0006] Preferably, a connecting block is fixedly installed at one end of the movable plate, a cavity is provided in the connecting block, a cam is rotatably installed in the cavity, the maximum diameter of the cam extends to interfere with the side wall of the main scale, a paddle is fixedly installed on the side wall of the cam, and a through hole is provided in the cavity wall for accommodating the paddle.

[0007] Preferably, a pair of sliding holes are provided on the top of the main ruler, and a plurality of guide rods are fixedly mounted on the movable plate, and the guide rods are slidably mounted in the sliding holes.

[0008] Preferably, the secondary ruler is rotatably installed above the protractor through a rotating shaft, the outer wall of the rotating shaft is movably sleeved with a limit sleeve, the elastic component is a spring sheet sleeved on the rotating shaft, the top of the limit sleeve is fixedly sleeved with a limit ring, and the upper and lower ends of the spring sheet are respectively in contact with the limit ring and the main ruler.

[0009] Preferably, a rubber ring is fixedly mounted on the top of the limiting ring.

[0010] Preferably, baffles are fixedly mounted on the left and right ends of the pen-stopping piece respectively.

[0011] Preferably, two sides of the secondary ruler are respectively provided with sliding grooves for accommodating the sliding block, and a square hole is provided on the top of the sliding block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the movable plate is locked and positioned by the cam in cooperation with the main ruler, and the sub-rule is limited by the spring sheet as the angle, so that the position of the sub-rule can be adjusted quickly and conveniently according to the drawing requirements. In addition, the setting of the pen-stop piece on the sub-rule effectively solves the situation that the surveying and mapping deviation occurs due to the gap between the sub-rule and the paper, and effectively improves the accuracy of the measuring ruler. The structure is simple and the operation is convenient, which brings convenience to engineering surveying and mapping and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of a three-dimensional structure of a connection block of the utility model;

[0016] Figure 3 This is a schematic diagram of a cross-sectioned and enlarged three-dimensional structure of a connection block of the utility model;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the split connection block and the cam of the utility model;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the split movable plate of the utility model;

[0019] Figure 6 It is a schematic diagram of the large three-dimensional structure of the movable plate and the auxiliary ruler cutaway of the utility model;

[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the limit sleeve and the spring sheet separated in the utility model;

[0021] Figure 8 This is a schematic diagram of the three-dimensional structure of the auxiliary ruler and the slider assembly of the utility model;

[0022] Fig. 9 This is a schematic diagram of the three-dimensional structure of the slider of the utility model;

[0023] Fig.10 It is a schematic diagram of the disassembled three-dimensional structure of the slider and the pen-stopping piece of the utility model.

[0024] In the figure: 1. main ruler; 2. movable plate; 3. auxiliary ruler; 4. slider; 5. protractor; 6. connecting block; 7. paddle; 8. cam; 9. limit sleeve; 10. spring sheet; 11. limit ring; 12. rubber ring; 13. pen stop; 14. baffle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 The utility model provides a technical solution: a multifunctional measuring ruler for surveying and mapping engineering, comprising a main ruler 1 and a movable plate 2 and a secondary ruler 3 movably mounted on the main ruler 1. One side of the main ruler 1 is an inclined structure, and a scale is arranged at the position of the inclined structure. A pair of sliding holes are arranged on the top of the main ruler 1, and a plurality of guide rods are fixedly mounted on the movable plate 2. The guide rods are slidably mounted in the sliding holes. A connecting block 6 is fixedly mounted on one end of the movable plate 2. A cavity is arranged in the connecting block 6, and a cam 8 is rotatably mounted in the cavity. An opening is arranged at the bottom of the cavity for convenient cam movement. The wheel 8 rotates in the cavity, and the maximum diameter of the cam 8 extends to collide with the side wall of the main scale 1. There is a large friction between the outer wall of the cam 8 and the main scale 1. A paddle 7 is fixedly installed on the side wall of the cam 8, and the cavity wall is provided with a through hole for accommodating the paddle 7. The advantage of this arrangement is that when the user slides the movable plate 2 to the specified position in the main scale 1, the paddle 7 is rotated to make the maximum diameter of the cam 8 collide with the side wall of the main scale 1, thereby limiting the movable plate 2. The structure is simple and the operation is convenient, which brings convenience to engineering drawing.

[0027] See also Figure 5-Figure 7A protractor 5 is provided on the top of the movable plate 2, and the secondary ruler 3 is coaxially installed on the top of the protractor 5 and limited by an elastic component. The secondary ruler 3 is installed on the top of the protractor 5 through a rotating shaft. The outer wall of the rotating shaft is movably sleeved with a limiting sleeve 9. The elastic component is a spring sheet 10 sleeved on the rotating shaft. The top of the limiting sleeve 9 is fixedly sleeved with a limiting ring 11. The upper and lower ends of the spring sheet 10 are respectively in contact with the limiting ring 11 and the main ruler 1. A rubber ring 12 is fixedly installed on the top of the limiting ring 11. The setting of the rubber ring 12 effectively increases the friction between the secondary ruler 3 and the secondary ruler 3. When After the movable plate 2 slides to the specified position on the main ruler 1, the top of the limit sleeve 9 is pressed so that the limit ring 11 is pressed down together with the limit sleeve 9 to a position away from the bottom of the secondary ruler 3. At this time, the spring sheet 10 is deformed by the force, and then the secondary ruler 3 is rotated. The top of the secondary ruler 3 is located above the protractor 5 and is provided with a positioning hole, which is convenient for the user to check the adjustment degree. After adjusting to the required angle, the limit sleeve 9 is released, and the spring sheet 10 releases its own elastic potential energy, resets through elastic movement, and lifts the limit ring 11 and the rubber ring 12 until they are in contact with the bottom of the secondary ruler 3, thereby limiting the angle of the secondary ruler 3.

[0028] See also Figure 8-Figure 10 The top of the secondary ruler 3 is slidably installed with a slider 4, and both sides of the secondary ruler 3 are respectively provided with sliding grooves for accommodating the slider 4, and the top of the slider 4 is provided with a square hole, and one end of the slider 4 is rotatably installed with a pen-stop piece 13, and the left and right ends of the pen-stop piece 13 are respectively fixedly installed with baffles 14, so that when the pen-stop piece 13 is rotated to a vertical state, the bottom of one side of the slider 4 is flush with the bottom wall of the main ruler 1, and a groove is provided at the bottom of one side of the slider 4, and the pen-stop piece 13 is rotatably installed in the groove. After the angle adjustment of the secondary ruler 3 is completed, the slider 4 is slid to one end of the secondary ruler 3 (the starting end of the pen), and then the pen-stop piece 13 is rotated to a vertical state. One side of the pen-stop piece 13 is limited by contacting the groove. At this time, the bottom of the pen-stop piece 13 is flush with the bottom wall of the main ruler 1, and the user places the pen tip at the angle between the pen tip 13 and the baffle 14, and the pen tip can be guided to draw a line at an accurate angle, thereby improving the accuracy of surveying and mapping.

[0029] In the present application, the movable plate 2 is locked in position by the cam 8 in cooperation with the main scale 1, and the auxiliary scale 3 is limited in angle by the spring sheet 10, so that the position of the auxiliary scale 3 can be adjusted quickly and conveniently according to the drawing requirements. In addition, the setting of the pen piece 13 on the auxiliary scale 3 effectively solves the problem of deviation in surveying and mapping caused by the gap between the auxiliary scale 3 and the paper, and effectively improves the accuracy of the measuring scale. It has a simple structure and is easy to operate, which brings convenience to engineering surveying and mapping while having a high use value.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional measuring ruler for surveying and mapping engineering, characterized in that: The invention comprises a main ruler (1), a movable plate (2) and a secondary ruler (3) movably mounted on the main ruler (1), a protractor (5) being provided on the top of the movable plate (2), the secondary ruler (3) being coaxially rotatably mounted above the protractor (5) and being limited by an elastic member, a slider (4) being slidably mounted on the top of the secondary ruler (3), and a pen-stopping piece (13) being rotatably mounted on one end of the slider (4) so ​​that the bottom of the pen-stopping piece (13) is flush with the bottom wall of the main ruler (1) when the pen-stopping piece (13) is rotated to a vertical state.

2. The multifunctional measuring ruler for surveying and mapping engineering according to claim 1, characterized in that: A connecting block (6) is fixedly mounted on one end of the movable plate (2), a cavity is provided in the connecting block (6), a cam (8) is rotatably mounted in the cavity, the maximum diameter of the cam (8) extends to abut against the side wall of the main scale (1), a paddle (7) is fixedly mounted on the side wall of the cam (8), and a through hole for accommodating the paddle (7) is provided in the cavity wall of the cavity.

3. The multifunctional measuring ruler for surveying and mapping engineering according to claim 1, characterized in that: A pair of sliding holes are provided on the top of the main ruler (1), and a plurality of guide rods are fixedly mounted on the movable plate (2), and the guide rods are slidably mounted in the sliding holes.

4. The multifunctional measuring ruler for surveying and mapping engineering according to claim 1, characterized in that: The secondary ruler (3) is rotatably mounted above the protractor (5) via a rotating shaft, a limit sleeve (9) is movably sleeved on the outer wall of the rotating shaft, the elastic member is a spring sheet (10) sleeved on the rotating shaft, a limit ring (11) is fixedly sleeved on the top of the limit sleeve (9), and the upper and lower ends of the spring sheet (10) are in contact with the limit ring (11) and the main ruler (1) respectively.

5. The multifunctional measuring ruler for surveying and mapping engineering according to claim 4, characterized in that: A rubber ring (12) is fixedly mounted on the top of the limiting ring (11).

6. The multifunctional measuring ruler for surveying and mapping engineering according to claim 1, characterized in that: Baffles (14) are fixedly mounted on the left and right ends of the pen-stopping piece (13), respectively.

7. The multifunctional measuring ruler for surveying and mapping engineering according to claim 1, characterized in that: Slide grooves for accommodating the slide block (4) are respectively provided on both sides of the secondary ruler (3), and a square hole is provided on the top of the slide block (4).

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