Slope ratio measuring device

Abstract

The utility model relates to the technical field of side slope ratio measurement, and discloses a side slope ratio measuring device which comprises a measuring rod, a protractor and a pointing needle, the measuring rod comprises a main rod and an auxiliary rod, one end of the main rod is provided with a limiting bolt, the main rod is rotatably connected with the auxiliary rod through the limiting bolt, and the protractor is connected with the pointing needle. A fixing mechanism is arranged on one side of the main rod and used for fixing the relative angle between the main rod and the auxiliary rod, the protractor is fixedly connected to the middle of the main rod and arranged in the length direction of the main rod, and a screw set is arranged in the center of the protractor and used for fixing the protractor. Through the cooperative arrangement of the main rod, the protractor and the pointing needle, after the main rod is placed on the ground with the gradient, the pointing needle is perpendicular to the ground under the action of gravity, the gradient of the current ground can be obtained by checking the indication reading of the pointing needle on the protractor, the time required for measurement is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of slope ratio measurement technology, and specifically to a slope ratio measurement device. Background Technology

[0002] Slope ratio (gradient) measurement is a crucial step in civil engineering, road construction, and geological disaster prevention. Its accuracy and efficiency directly impact construction quality and safety. Traditional slope measurement methods typically rely on specialized instruments such as total stations and levels. While these offer high accuracy, they suffer from drawbacks including complex operation, high equipment costs, and dependence on specialized personnel, making it difficult to meet the rapid and convenient measurement needs of construction sites. Furthermore, in field conditions or complex terrain, the time and effort required to transport and set up large instruments further reduces construction efficiency.

[0003] Simple construction methods include tape measure measurement and visual estimation. When using a tape measure to directly measure the slope ratio, it is easily affected by tape tension and terrain, resulting in large errors and requiring multiple measurements and calculations. When using visual estimation to estimate the slope ratio, the accuracy is extremely low, relies on personal experience, and has large errors. Therefore, a device is needed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a slope ratio measuring device that solves the problems of complex operation of total station level instruments and low accuracy of tape measure and visual inspection methods.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a slope ratio measuring device, including a measuring rod, a protractor and a pointing needle, wherein the measuring rod includes a main rod and a secondary rod, one end of the main rod is provided with a limiting bolt, the main rod is rotatably connected to the secondary rod through the limiting bolt, and a fixing mechanism is provided on one side of the main rod to fix the relative angle between the main rod and the secondary rod;

[0006] The protractor is fixedly connected to the middle of the main rod and is set along the length of the main rod. A screw group is provided at the center of the protractor for fixing the protractor. A pointer is rotatably connected to one side of the screw group. The pointer is triangular in design and points to the protractor to check the tilt angle of the main rod.

[0007] Optionally, a positioning plate is fixedly connected to one end of the secondary rod near the limiting bolt. The positioning plate is fitted with one end of the main rod to limit the rotation angle of the secondary rod.

[0008] Optionally, the fixing mechanism includes a positioning pin and positioning holes. The positioning pin is sleeved on one end of the main rod. There are two positioning holes, which are symmetrically arranged with the limiting bolt as the center. The two positioning holes are on the same straight line as the limiting bolt and the positioning pin.

[0009] Optionally, a first compression spring is fitted on the outer surface of the positioning pin, and one end of the first compression spring abuts against the inner wall of the main rod to push the positioning pin into the positioning hole.

[0010] Optionally, the screw assembly includes a fixing bolt, a first nut, and a second nut. The first nut is located on one side of the protractor, and the second nut is located on the side of the main rod away from the protractor. The fixing bolt passes through the pointer and is threadedly connected to both the first nut and the second nut.

[0011] Optionally, the inner walls of both the main rod and the auxiliary rod are provided with support mechanisms.

[0012] Optionally, the support mechanism includes a connecting rod and a sleeve. The inner walls of the main rod and the auxiliary rod are provided with a storage groove. The connecting rod is set on the inner wall of the storage groove through a rotating shaft. One end of the connecting rod is fixedly connected to the sleeve. A support plate is sleeved on the bottom of the sleeve. A second compression spring is provided on the inner wall of the sleeve. The bottom of the second compression spring abuts against the upper surface of the support plate.

[0013] Optionally, the lower surface of the support plate is flush with the lower surface of the main rod.

[0014] This utility model provides a slope ratio measuring device, which has the following beneficial effects:

[0015] This invention provides a slope ratio measuring device. Through the coordinated arrangement of a main rod, a protractor, and a pointer, after the main rod is placed on a sloping surface, the pointer, under the influence of gravity, becomes perpendicular to the ground. The slope of the ground can be determined by observing the reading of the pointer on the protractor, thus shortening the measurement time and improving construction efficiency. The coordinated arrangement of the main rod and the auxiliary rod allows for the extension of the overall length when the slope is long, improving the accuracy of the measurement process for longer slopes. Furthermore, the fixing mechanism on the main rod ensures that the main rod and the auxiliary rod are aligned in a straight line, reducing errors caused by the angle difference between the main rod and the auxiliary rod. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model when it is being stored.

[0018] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0019] Figure 4 This is a side sectional view of the protractor of this utility model.

[0020] Figure 5 This is a structural schematic diagram showing the top cross-section of the fixing mechanism of this utility model;

[0021] Figure 6 This is a side sectional view of the support structure of this utility model.

[0022] In the diagram: 1. Main rod; 2. Secondary rod; 3. Protractor; 4. Pointer; 5. Limiting bolt; 6. Positioning plate; 7. Positioning pin; 8. Positioning hole; 9. First compression spring; 10. Fixing bolt; 11. First nut; 12. Second nut; 13. Connecting rod; 14. Sleeve; 15. Storage groove; 16. Support plate; 17. Second compression spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 6 This utility model provides a technical solution: a slope ratio measuring device, including a measuring rod, a protractor 3 and a pointer 4. The measuring rod includes a main rod 1 and a secondary rod 2. One end of the main rod 1 is provided with a limiting bolt 5. The main rod 1 is rotatably connected to the secondary rod 2 through the limiting bolt 5. A fixing mechanism is provided on one side of the main rod 1 to fix the relative angle between the main rod 1 and the secondary rod 2.

[0025] The protractor 3 is fixedly connected to the middle of the main rod 1 and is set along the length of the main rod 1. A screw assembly is provided at the center of the protractor 3 for fixing the protractor 3. A pointer 4 is rotatably connected to one side of the screw assembly. The pointer 4 is triangular in design and points to the protractor 3 to check the tilt angle of the main rod 1.

[0026] The protractor 3 is located on the side of the main rod 1. The screw assembly fixes the protractor 3 and passes through the pointer 4. The through hole in the middle of the pointer 4 is larger than the outer circle of the screw assembly, allowing the pointer 4 to rotate on the screw assembly. Due to gravity, the pointer 4 is always perpendicular. The pointer 4 is an isosceles triangle with a wide base and a narrow top, with a low center of gravity, so that the narrow side at the top can point to the scale of the protractor 3, making the reading more accurate. The auxiliary rod 2 is connected to the main rod 1 through the limiting bolt 5. After loosening the limiting bolt 5, the auxiliary rod 2 can rotate around the main rod 1, allowing the auxiliary rod 2 to be flipped out or retracted to the back of the main rod 1. After tightening the limiting bolt 5, the positions of the auxiliary rod 2 and the main rod 1 are fixed. With the help of the fixing mechanism set on the main rod 1, the opening angle of the main rod 1 and the auxiliary rod 2 can be limited, ensuring that the auxiliary rod 2 and the main rod 1 are on the same straight line.

[0027] In this embodiment, as a preferred option, a positioning plate 6 is fixedly connected to one end of the secondary rod 2 near the limiting bolt 5. The positioning plate 6 is attached to one end of the main rod 1 to limit the rotation angle of the secondary rod 2.

[0028] The positioning plate 6 is set on the secondary rod 2. One end of the main rod 1 is arc-shaped. When the secondary rod 2 is flipped, the positioning plate 6 on the secondary rod 2 can move along the arc. After moving to the limit position, the arc becomes a straight line. At this time, the positioning plate 6 can no longer move, thereby limiting the rotation angle of the secondary rod 2.

[0029] In this embodiment, as a preferred option, the fixing mechanism includes a positioning pin 7 and a positioning hole 8. The positioning pin 7 is sleeved on one end of the main rod 1. There are two positioning holes 8, which are symmetrically arranged with the limiting bolt 5 as the center. The two positioning holes 8 are on the same straight line as the limiting bolt 5 and the positioning pin 7. A first compression spring 9 is sleeved on the outer surface of the positioning pin 7. One end of the first compression spring 9 abuts against the inner wall of the main rod 1 to push the positioning pin 7 into the positioning hole 8.

[0030] There are two positioning holes 8, located on both sides of the limiting bolt 5. The two positioning holes 8 and the limiting bolt 5 are equidistant from the bottom edge of the auxiliary rod 2, thus ensuring that the fixed position of the auxiliary rod 2 is in a straight line with the main rod 1, reducing deviation during the fixing process. The first compression spring 9 pushes the positioning pin 7 towards one side of the positioning hole 8, so that the positioning pin 7 is inserted into the positioning hole 8. Together with the limiting bolt 5 located on one side, the two points determine a straight line, thereby fixing the auxiliary rod 2 and the main rod 1 together. When it is necessary to retract the auxiliary rod 2, the positioning pin 7 is pulled outward to separate the positioning pin 7 from the positioning hole 8, allowing the auxiliary rod 2 to rotate around the limiting bolt 5 in the middle, thereby storing the auxiliary rod 2.

[0031] In this embodiment, as a preferred option, the screw assembly includes a fixing bolt 10, a first nut 11, and a second nut 12. The first nut 11 is located on one side of the protractor 3, and the second nut 12 is located on the side of the main rod 1 away from the protractor 3. The fixing bolt 10 passes through the pointer 4 and is threadedly connected to both the first nut 11 and the second nut 12.

[0032] The first nut 11 and the second nut 12 are respectively set on one side of the protractor 3 and one side of the main rod 1. The first nut 11 and the second nut 12 clamp and fix the middle part on both sides, fixing the protractor 3 to the main rod 1. At the same time, the protractor 3 is provided with a through hole, and self-tapping screws can be used to further fix the protractor 3 to prevent the protractor 3 from shaking. The pointer 4 is set between the first nut 11 and the nut of the fixing bolt 10, and can rotate around the fixing bolt 10, pointing upward by gravity.

[0033] In this embodiment, as a preferred option, the inner walls of both the main rod 1 and the auxiliary rod 2 are provided with support mechanisms. The support mechanisms include a connecting rod 13 and a sleeve 14. The inner walls of both the main rod 1 and the auxiliary rod 2 are provided with storage grooves 15. The connecting rod 13 is set on the inner wall of the storage groove 15 through a rotating shaft. One end of the connecting rod 13 is fixedly connected to the sleeve 14. The bottom of the sleeve 14 is fitted with a support plate 16. The inner wall of the sleeve 14 is provided with a second compression spring 17. The bottom of the second compression spring 17 abuts against the upper surface of the support plate 16, and the lower surface of the support plate 16 is flush with the lower surface of the main rod 1.

[0034] The connecting rod 13 can be rotated out from the storage groove 15 to support the main rod 1 or the auxiliary rod 2 on the side. When detecting large-area slopes, it can keep the main rod 1 perpendicular to the ground, improving detection accuracy and reducing the possibility of inaccurate measurements by the protractor 3 due to the tilt of the main rod 1. The second compression spring 17 pushes the support plate 16 downward, causing the support plate 16 to move out of the sleeve 14. The extreme position of the downward movement of the support plate 16 is flush with the lower surface of the main rod 1, ensuring that the main rod 1 can be supported in a vertical position. When the connecting rod 13 is retracted, the support plate 16 is retracted into the storage groove 15. At this time, the second compression spring 17 continues to push the support plate 16 downward, so that the support plate 16 presses against the inner wall of the storage groove 15, thereby providing initial fixation for the connecting rod 13 to prevent the connecting rod 13 from accidentally coming out of the storage groove 15.

[0035] In this invention, the working steps of the device are as follows:

[0036] 1. When using it, place the main rod 1 on the slope and observe the scale of the protractor 3 where the pointer 4 points. This indicates the slope ratio of the current slope.

[0037] 2. When the slope is long, pull out the positioning pin 7, rotate the auxiliary rod 2, and then release the positioning pin 7 after the auxiliary rod 2 and the main rod 1 are in the same straight line. The positioning pin 7 fixes the position of the auxiliary rod 2. After fixing, place the main rod 1 and the auxiliary rod 2 together on the slope for measurement.

[0038] 3. When the slope area is large, the connecting rod 13 can be rotated out of the storage groove 15 to increase the support surface and ensure that the main rod 1 and the auxiliary rod 2 are in a vertical position, thereby improving the accuracy of the measurement process;

[0039] 4. After use, retract the connecting rod 13 into the storage slot 15 and fold the auxiliary rod 2 and the main rod 1 together.

[0040] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A slope ratio measuring device, characterized in that: It includes a measuring rod, a protractor (3) and a pointer (4). The measuring rod includes a main rod (1) and a secondary rod (2). One end of the main rod (1) is provided with a limiting bolt (5). The main rod (1) is rotatably connected to the secondary rod (2) through the limiting bolt (5). A fixing mechanism is provided on one side of the main rod (1) to fix the relative angle between the main rod (1) and the secondary rod (2). The protractor (3) is fixedly connected to the middle of the main rod (1) and is set along the length of the main rod (1). The center of the protractor (3) is provided with a screw group for fixing the protractor (3). A pointer (4) is rotatably connected to one side of the screw group. The pointer (4) is triangular in design and points to the protractor (3) to check the tilt angle of the main rod (1).

2. The slope ratio measuring device according to claim 1, characterized in that: The auxiliary rod (2) is fixedly connected to a positioning plate (6) at one end near the limiting bolt (5). The positioning plate (6) is attached to one end of the main rod (1) to limit the rotation angle of the auxiliary rod (2).

3. The slope ratio measuring device according to claim 2, characterized in that: The fixing mechanism includes a positioning pin (7) and a positioning hole (8). The positioning pin (7) is sleeved on one end of the main rod (1). There are two positioning holes (8) and they are symmetrically arranged with the limiting bolt (5) as the center. The two positioning holes (8), the limiting bolt (5), and the positioning pin (7) are on the same straight line.

4. The slope ratio measuring device according to claim 3, characterized in that: The outer surface of the positioning pin (7) is fitted with a first compression spring (9), one end of which abuts against the inner wall of the main rod (1) to push the positioning pin (7) into the positioning hole (8).

5. A slope ratio measuring device according to any one of claims 1-4, characterized in that: The screw assembly includes a fixing bolt (10), a first nut (11) and a second nut (12). The first nut (11) is located on one side of the protractor (3), and the second nut (12) is located on the side of the main rod (1) away from the protractor (3). The fixing bolt (10) passes through the pointer (4) and is threadedly connected to the first nut (11) and the second nut (12) at the same time.

6. A slope ratio measuring device according to any one of claims 1-4, characterized in that: The inner walls of both the main rod (1) and the auxiliary rod (2) are provided with support mechanisms.

7. A slope ratio measuring device according to claim 6, characterized in that: The support mechanism includes a connecting rod (13) and a sleeve (14). The inner walls of the main rod (1) and the auxiliary rod (2) are provided with a storage groove (15). The connecting rod (13) is set on the inner wall of the storage groove (15) through a rotating shaft. One end of the connecting rod (13) is fixedly connected to the sleeve (14). The bottom of the sleeve (14) is fitted with a support plate (16). The inner wall of the sleeve (14) is provided with a second compression spring (17). The bottom of the second compression spring (17) abuts against the upper surface of the support plate (16).

8. The slope ratio measuring device according to claim 7, characterized in that: The lower surface of the support plate (16) is flush with the lower surface of the main rod (1).

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