Simple slope ratio measurer

By designing a simple slope ratio measuring device and using a combined structure of gears and level bubbles, the direct reading of slope ratio is achieved, solving the problems of cumbersome operation and inconvenient measurement in the existing technology, and improving construction efficiency and measurement accuracy.

CN223138664UActive Publication Date: 2025-07-22YUNNAN CONSTR INVESTMENT HLDG GRP CO LTD
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Patent Information

Application Number
CN202422130880.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-07-22
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The existing slope slope ratio measurement device is complicated to operate, and the measurement results cannot directly reflect the slope ratio. It needs to be calculated and is inconvenient to use, making it difficult to meet the rapid measurement needs of engineering construction.

Method used

A simple slope ratio measuring device is designed, using a combined structure of the first gear, indicator needle, level bubble, connection assembly and telescopic measuring rod. The slope ratio measurement is achieved by directly reading the indicator needle reading, simplifying the operation process.

Benefits of technology

It realizes intuitive measurement of slope ratio without calculation, improves work efficiency, reduces production and maintenance costs, ensures measurement accuracy and construction safety, and improves project quality control.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a simple side slope ratio measurer, which comprises a side slope ratio measurer, the non-dial end face of the side slope ratio measurer is rotatably connected with a first gear, and the first gear is connected with a pointer in the side slope ratio measurer through a pointer connecting shaft; the handle is connected right above the side slope ratio measurer; the level bubble is embedded in one side of the top end of the handle; the connecting assembly is rotationally connected to the portion, below the first gear, of the side slope ratio measurer, and the upper portion of the connecting assembly is connected with the first gear in a meshed mode; and the telescopic measuring rod is connected to the non-rotating end of the connecting assembly. The slope ratio measuring device is ingenious in design, convenient and reliable, simple to operate and easy to master, the slope ratio of the side slope can be visually measured, slope ratio data can be rapidly read without calculation, and the working efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to a measuring device, in particular to a simple side slope ratio measuring device, belonging to the technical field of side slope construction. Background Art

[0002] Generally speaking, with the continuous acceleration of construction projects in my country, in engineering construction, especially in foundation pit projects with slope excavation, the foundation pit slope ratio is an important parameter that is related to the safety of the foundation pit. In engineering, the slope ratio (such as 1:1 or 1:0.5, etc.) is used to indicate the steepness of the slope. The slope ratio refers to the ratio of the vertical distance H to the horizontal distance L. In actual construction, it is often necessary to measure the slope ratio of the slope, but the traditional measurement method is time-consuming and labor-intensive. Due to the complex operation, few people are willing to re-measure frequently during the slope excavation process, which may cause the slope ratio to fail to meet the design requirements.

[0003] Most of the existing slope ratio measuring devices are triangular structures, including vertical bars, horizontal bars and diagonal bars. The vertical bars and horizontal bars are vertically connected, and the two ends of the diagonal bar are respectively connected to the vertical bars and the horizontal bars. A positioning rod is arranged through the horizontal bar, and the horizontality of the slope ratio measuring device is adjusted by the positioning rod. At the same time, there are basically no direct measurement tools for existing slope ratio measurement. In actual use, the height difference between the top and the bottom of the slope and the plane position spacing are collected by a total station to calculate the slope ratio. The process is cumbersome and inconvenient to use. The measurement result cannot directly reflect the slope ratio and needs to be calculated.

[0004] At present, a Chinese utility model patent with announcement number CN214893271 U discloses a slope ratio measuring device, which belongs to the technical field of slope measurement in construction engineering. The slope ratio measuring device includes a horizontal rod, a vertical rod, and an oblique rod. The two ends of the oblique rod are respectively hinged to one end of the horizontal rod and the vertical rod. The other end of the horizontal rod is connected to the vertical rod through a second locking bolt. The oblique rod includes a sleeve rod and an insertion rod. The sleeve rod and the insertion rod are connected by a sleeve and a first locking bolt is set. A horizontal bubble tube is set on the horizontal rod. The outer side of the hinged end of the oblique rod and the vertical rod is hingedly installed with a "U"-shaped connecting block through a connecting bolt, and a positioning anchor is set at the bottom of the connecting block. However, the slope ratio measuring device has the problem that when it is used, the vertical rod is first anchored to the ground at the measurement position by the positioning anchor. The use process is cumbersome and inconvenient. The measurement result cannot directly reflect the slope ratio and needs to be calculated.

[0005] Therefore, the key to solving the above technical problems is to develop a simple slope ratio measuring device with simple operation and fast reading. Utility Model Content

[0006] In view of the many defects and deficiencies in the above-mentioned background art, the present utility model has made improvements and innovations, aiming to provide a simple slope ratio measuring device with ingenious design, convenience and reliability, which can directly measure the slope ratio of the slope, quickly read the slope ratio data without calculation, and improve work efficiency.

[0007] Another utility model object of the present utility model is that it has a simple structure, convenient operation, easy to manufacture, and is convenient to carry and store at the same time. It can enable operators with less proficient skills to quickly get started, reduce the difficulty of use, and improve work efficiency.

[0008] To solve the above problems and achieve the above utility model objects, a simple slope ratio measuring device of the present utility model is realized by adopting the following design structure and the following technical solutions:

[0009] A simple slope ratio measuring device, comprising:

[0010] A slope ratio measuring device (1), a first gear (2) is rotatably connected to the non-dial end face of the slope ratio measuring device (1), and the first gear (2) is connected to an indicating needle (11) inside the slope ratio measuring device (1) through an indicating needle connecting shaft (7);

[0011] A handle (3), the handle (3) is connected directly above the slope ratio measuring device (1);

[0012] A spirit level (4), the spirit level (4) is embedded on one side of the top end of the handle (3);

[0013] A connecting component (5), the connecting component (5) is rotatably connected to the slope ratio measuring device (1) below the first gear (2), and the upper part of the connecting component (5) is meshed and connected to the first gear (2);

[0014] A telescopic measuring rod (6), the telescopic measuring rod (6) is connected to the non-rotating end of the connecting component (5).

[0015] Preferably, the slope ratio measuring device (1) comprises:

[0016] A housing (12);

[0017] A dial (13), the dial (13) is coaxially connected inside the housing (12), and the dial (13) is provided with slope ratio scale lines and corresponding scale numbers;

[0018] Among them, the indicating needle (11) is rotatably connected to the center position of the dial (13).

[0019] Preferably, the housing (12) is integrally in a cylindrical structure with both ends closed and hollow inside, and the housing cover near the dial (13) end is a transparent cover.

[0020] Preferably, one end of the first gear (2) is connected to one end of the indicating needle connecting shaft (7), and the other end of the indicating needle connecting shaft (7) passes through the non-transparent cover end of the housing (12) and is connected to the indicating needle (11).

[0021] Preferably, the handle (3) is integrally in a U-shaped structure, and both ends of the opening of the handle (3) are connected above the outer side of the housing (12) at the zero graduation line; wherein, an installation groove for installing the spirit level (4) is provided on one side of the top end of the handle (3).

[0022] Preferably, the spirit level (4) is a circular universal spirit level or a cross-shaped spirit level.

[0023] Preferably, the connecting assembly (5) includes:

[0024] A connecting column (51), the connecting column (51) is connected to the outer side of the non-transparent cover end of the housing (12) directly below the indicating needle connecting shaft (7);

[0025] A connecting member (52), the upper part of the connecting member (52) is sleeved and rotatable on the outer side of the connecting column (51);

[0026] A second gear (53), the second gear (53) is rotatably connected to the upper part of the connecting member (52), and the second gear (53) is meshed and connected to the first gear (2);

[0027] A limit locking member (54), the limit locking member (54) is threadedly connected to the lower part of the connecting member (52).

[0028] Preferably, the connecting member (52) includes a connecting plate and a sleeve communicated and connected to one side above the connecting plate. The second gear (53) is sleeved on the outer side of the sleeve through a bearing. A socket hole communicated and connected to the sleeve is provided through the upper part of the connecting plate, and a locking threaded hole threadedly connected to the limit locking member (54) is provided through the lower part of the connecting plate.

[0029] Preferably, the outer circumference of the second gear (53) is 4 times that of the first gear (2).

[0030] Preferably, the telescopic measuring rod (6) includes:

[0031] A fixing frame (61), the middle part of the upper end of the fixing frame (61) is connected to the lower end of the connecting member (52), and through grooves are symmetrically provided along the length direction at the upper parts of both ends of the fixing frame (61);

[0032] Two movable rods (62), the two movable rods (62) are respectively clamped inside both ends of the fixing frame (61);

[0033] Two connecting blocks (63), one end of each of the two connecting blocks (63) passes through the two sliding grooves and is connected to the movable rod (62) at the corresponding end.

[0034] The working principle is as follows: When measuring, first extend the "retractable measuring rod"; then, loosen the "fixing knob" and lean the device against the slope to be measured; secondly, ensure that the "level bubble" is in the central position; finally, read the pointer reading to measure the slope ratio of the slope.

[0035] During specific measurement, first, take the slope ratio measuring device (1) to the position of the slope to be measured;

[0036] Then, pull out the movable rod (62) through the connecting block (63);

[0037] Then, loosen the limit locking part (54) to allow the retractable measuring rod (6) to rotate freely;

[0038] Immediately afterwards, lean the retractable measuring rod (6) against the slope to be measured, observe the spirit level (4) with the eyes and place the handle (3) in a horizontal state;

[0039] Finally, tighten the limit locking part (54) to fix the retractable measuring rod (6), and read the reading of the indicating needle (11) on the dial (13).

[0040] After specific use, the operator only needs to remove the present utility model. When removing:

[0041] First, loosen the limit locking part (54) to allow the retractable measuring rod (6) to rotate freely;

[0042] Then, rotate the retractable measuring rod (6) to a suitable position;

[0043] Immediately afterwards, tighten the limit locking part (54) to fix the retractable measuring rod (6);

[0044] Finally, retract the movable rod (62) through the connecting block (63).

[0045] The beneficial effects of the present utility model compared with the prior art are as follows:

[0046] 1. The present utility model is ingeniously designed and convenient to use, can directly measure the slope ratio of the slope, can quickly read the slope ratio data without calculation, and improves work efficiency;

[0047] 2. The present utility model is convenient to operate, enables operators with less proficiency to quickly get started, reduces the difficulty of use, and improves work efficiency;

[0048] 3. The present utility model is easy to manufacture, greatly reducing production costs;

[0049] 4. The structure of the utility model is simple, which can make the maintenance and repair of the equipment simpler and faster, reducing the maintenance cost;

[0050] 5. The telescopic measuring rod of the utility model adopts a telescopic design, making the whole measuring device convenient to carry and store, easy to handle, time-saving and labor-saving;

[0051] 6. The utility model has high reliability. It can not only provide accurate measurement results, but also improve the detection efficiency and ensure the safety of the test process. Furthermore, it can improve the error problem in the construction process management, reduce the engineering cost risk, achieve the improvement of construction accuracy and quality control, and ensure the stability and reliability of the project quality;

[0052] 7. The limit locking knob of the utility model can lock the second gear, preventing the whole connecting component from rotating on the slope ratio measuring device during handling, bringing unnecessary instability and wear between components during handling, and reducing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The following further details the specific embodiments of the utility model in conjunction with the drawings, where:

[0054] Figure 1 is one of the usage state diagrams of the utility model;

[0055] Figure 2 is the second usage state diagram of the utility model;

[0056] Figure 3 is one of the overall structure diagrams of the utility model;

[0057] Figure 4 is the second overall structure diagram of the utility model;

[0058] Figure 5 is the side view of the utility model;

[0059] Figure 6 is the exploded view of the utility model;

[0060] Among them, the reference numerals in the figures: 1 - slope ratio measuring device 1, 11 - indicating needle 11, 12 - housing 12, 13 - dial 13;

[0061] 2 - first gear 2;

[0062] 3 - handle 3;

[0063] 4 - spirit level 4;

[0064] 5 - connecting component 5, 51 - connecting column 51, 52 - connecting piece 52, 53 - second gear 53, 54 - limit locking piece 54;

[0065] 6 - Telescopic measuring rod 6, 61 - Fixed bracket 61, 62 - Movable rod 62, 63 - Connecting block 63;

[0066] 7 - Indicator needle connecting shaft 7;

[0067] 8 - Slope 8. Specific implementation mode

[0068] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the technical solutions of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0069] As shown in the attached Figure 1 to the attached Figure 6 A simple slope ratio measuring device shown in the following includes:

[0070] The slope ratio measuring device 1, the non - dial end face of the slope ratio measuring device 1 is rotatably connected with a first gear 2. The first gear 2 is connected with an indicator needle 11 inside the slope ratio measuring device 1 through an indicator needle connecting shaft 7;

[0071] A handle 3, the handle 3 is connected directly above the slope ratio measuring device 1;

[0072] A spirit level 4, the spirit level 4 is embedded on one side of the top end of the handle 3;

[0073] A connecting component 5, the connecting component 5 is rotatably connected to the slope ratio measuring device 1 below the first gear 2, and the upper part of the connecting component 5 is meshed and connected with the first gear 2;

[0074] A telescopic measuring rod 6, the telescopic measuring rod 6 is connected to the non - rotating end of the connecting component 5.

[0075] In the present utility model, the rotation of the telescopic measuring rod 6 will drive the indicator needle 11 to make a corresponding rotation.

[0076] Furthermore, as Figure 3 shown, the slope ratio measuring device 1 includes:

[0077] A housing 12;

[0078] A dial 13, the dial 13 is coaxially connected inside the housing 12, and the dial 13 is provided with slope ratio scale lines and corresponding scale numbers;

[0079] Among them, the indicator needle 11 is rotatably connected to the central position of the dial 13.

[0080] In the present utility model, the dial 13 is of a circular structure, and the outer wall of the dial 13 is fixedly connected to the inner wall at one end of the housing 12. The indicating needle 11 is located outside the scale line end of the dial 13.

[0081] Specifically, as Figure 3 shown, the housing 12 is integrally in the shape of a closed hollow cylinder at both ends, and the housing cover near the dial 13 is a transparent cover.

[0082] Furthermore, as Figure 3 shown, the first gear 2 is connected to one end of the indicating needle connecting shaft 7, and the other end of the indicating needle connecting shaft 7 passes through the non-transparent cover end of the housing 12 and is connected to the indicating needle 11.

[0083] Furthermore, as Figures 1 to 5 shown, the handle 3 is integrally in a U-shaped structure, and both ends at the opening of the handle 3 are connected to the upper outer side of the housing 12 at the zero scale line; wherein, an installation groove for installing the spirit level 4 is provided on one side at the top of the handle 3.

[0084] In the present utility model, anti-slip patterns are further provided on the outer side of the handle 3.

[0085] Furthermore, as Figure 1 and Figure 3 as well as Figure 4 shown, the spirit level 4 is a circular universal spirit level or a cross-shaped spirit level.

[0086] Furthermore, as Figure 6 shown, the connection assembly 5 includes:

[0087] A connecting column 51, which is connected to the outer side of the non-transparent cover end of the housing 12 directly below the indicating needle connecting shaft 7;

[0088] A connecting member 52, the upper part of which is sleeved and rotatable on the outside of the connecting column 51;

[0089] A second gear 53, which is rotatably connected to the upper part of the connecting member 52, and the second gear 53 is meshed and connected to the first gear 2;

[0090] A limit locking member 54, which is threadedly connected to the lower part of the connecting member 52.

[0091] At the same time, the limit locking member 54 is used to limit the rotation of the second gear 53.

[0092] In the present utility model, the limit locking member 54 is disposed through the lower part of the connecting member 52. When the limit locking member 54 is tightened, the limit locking member 54 is tightly connected to the non-transparent cover end of the housing 12, thereby restricting the rotation of the connecting member 52 and further restricting the rotation of the second gear 53; there is a gap between the limit locking member 54 and the second gear 53; the limit locking member 54 includes a limit locking knob and a screw rod connected to one end of the limit locking knob, and the screw rod is threadedly connected to the locking threaded hole in the lower part of the connecting member 52; the limit locking knob is a cylinder or a cone.

[0093] Specifically, as Figure 6 shown, the connecting member 52 includes a connecting plate and a sleeve connected to communicate with one side above the connecting plate. The second gear 53 is sleeved outside the sleeve through a bearing. A socket hole communicating with the sleeve is opened through the upper part of the connecting plate, and a locking threaded hole threadedly connected to the limit locking member 54 is opened through the lower part of the connecting plate.

[0094] More specifically, as Figure 6 shown, the outer circumference of the second gear 53 is 4 times that of the first gear 2.

[0095] Furthermore, as Figure 6 shown, the telescopic measuring rod 6 includes:

[0096] A fixed frame 61, the middle of the upper end of the fixed frame 61 is connected to the lower end of the connecting member 52, and through slots are symmetrically opened through the upper parts of both ends of the fixed frame 61 along its length direction;

[0097] Two movable rods 62, the two movable rods 62 are respectively clamped inside both ends of the fixed frame 61;

[0098] Two connecting blocks 63, one ends of the two connecting blocks 63 respectively pass through the two through slots and are connected to the movable rods 62 at the corresponding ends.

[0099] Furthermore, a reinforcing plate is also connected between the fixed frame 61 and the connecting member 52.

[0100] In the present utility model, the width of the lower structure of the connecting block 63 is adapted to the width of the through slot, and the width of the upper structure of the connecting block 63 is greater than the width of the through slot. Among them, the cross section of the upper structure of the connecting block 63 is trapezoidal.

[0101] In summary, a more specific implementation manner of the present utility model is:

[0102] Before a simple slope ratio measuring device with the above design structure is used, it needs to be manufactured and installed for standby.

[0103] This device has a simple structure without complex mechanical structures. According to the design drawings of this device, it can be processed in an ordinary factory. After processing the device of the present utility model according to the requirements of the designed drawings, it can be installed as a spare according to needs.

[0104] The specific installation steps are as follows:

[0105] After this device is processed in the factory, the operator only needs to carry this utility model to the designated construction site for use manually or by corresponding handling equipment.

[0106] The specific usage steps are as follows:

[0107] First, take the slope ratio measurer 1 to the slope position to be measured;

[0108] Then, pull out the movable rod 62 through the connecting block 63;

[0109] Then, loosen the limit locking piece 54 to make the telescopic measuring rod 6 rotate freely;

[0110] Immediately afterwards, lean the telescopic measuring rod 6 against the slope to be measured, and observe the spirit level bubble 4 with the eyes to place the handle 3 in a horizontal state;

[0111] Finally, tighten the limit locking piece 54 to fix the telescopic measuring rod 6, and read the reading of the indicating needle 11 on the dial 13.

[0112] As time goes by, when all the construction work is completed and this utility model is not needed, the operator only needs to remove this utility model. When removing:

[0113] First, the operator loosens the limit locking piece 54 to make the telescopic measuring rod 6 rotate freely;

[0114] Then, rotate the telescopic measuring rod 6 to a suitable position;

[0115] Immediately afterwards, tighten the limit locking piece 54 to fix the telescopic measuring rod 6;

[0116] Finally, retract the movable rod 62 through the connecting block 63. At the same time, after cleaning and repairing each component of this utility model, carry it to the designated tool storage warehouse for storage again manually or by corresponding handling equipment for storage and preparation for the next cycle of turnover and use.

[0117] In the whole above implementation operation process, the measurement principle is that in this utility model, when the second gear 53 rotates 90° angles, it will drive the first gear 2 to rotate 360° angles.

[0118] In the present utility model, the perimeter R of the second gear 53 is exactly 4 times the perimeter r of the first gear 2. The slope ratio range of the slope is between 1:0 and 1:∞. The corresponding rotation angle of the second gear 53 is between 0° and 90°, and the corresponding rotation angle of the first gear 2 is between 0° and 360°.

[0119] For example, for a slope with a slope ratio of 1:n, during measurement, the rotation angle of the second gear 53 is arctan1:n, and the corresponding rotation angle of the first gear 2 is 4×arctan1:n, that is, the pointer connected to the first gear 2 also rotates 4×arctan1:n. During the processing and production of the device, by calculation, the slope ratio value can be marked at the corresponding position. The slope ratio scale line and the corresponding scale number scale / range ratio value provided on the dial 13 are obtained by calculating the rotation angle of the gear and then inversely calculating it on the dial.

[0120] Taking a slope with a slope ratio of 1:1 as an example, when measuring this slope, the rotation angle of the second gear 53 is arctan1:1 = 45°. Since the perimeter R of the second gear 53 is exactly 4 times the perimeter r of the first gear 2, the rotation angle of the second gear 53 driving the first gear 2 to rotate is 4×arctan1:1 = 180°, that is, the pointer connected to the first gear 2 also rotates 180°. Therefore, the position where the pointer rotates 180° corresponds to the position with a slope ratio of 1:1.

[0121] The retractable measuring rod of the present utility model adopts a retractable design, making the entire measuring device convenient to carry and store, easy to handle, time-saving and labor-saving.

[0122] The present utility model has high reliability. It can not only provide accurate measurement results, but also improve the detection efficiency and ensure the safety of the test process. Furthermore, it can reduce the error problems in the construction process management, lower the engineering cost risk, and achieve the improvement of construction accuracy and quality control, ensuring the stability and reliability of the project quality.

[0123] The limit locking knob of the present utility model can lock the second gear, preventing the entire connection assembly from rotating on the slope ratio measuring device during handling, which may bring unnecessary instability and wear between components during the handling process and reduce the service life.

[0124] The following comparative analysis

[0125]

[0126] In summary, it can be seen that this patent application is convenient, easy to use, simple to measure, and does not require complex calculations.

Claims

1. A simple slope ratio measuring device, characterized in that, Comprising: A slope gradient measuring device (1), a non-dial end face of the slope gradient measuring device (1) is rotatably connected with a first gear (2), and the first gear (2) is connected with an indicating needle (11) inside the slope gradient measuring device (1) through an indicating needle connecting shaft (7); A handle (3), the handle (3) is connected directly above the slope gradient measuring device (1); A spirit level (4), the spirit level (4) is embedded on one side of the top end of the handle (3); A connecting component (5), the connecting component (5) is rotatably connected to the slope gradient measuring device (1) below the first gear (2), and the upper part of the connecting component (5) is meshed and connected with the first gear (2); A telescopic measuring rod (6), the telescopic measuring rod (6) is connected to the non-rotating end of the connecting component (5).

2. The simple slope ratio measuring device according to claim 1, characterized in that, The slope gradient measuring device (1) includes: A housing (12); A dial (13), the dial (13) is coaxially connected inside the housing (12), and slope gradient scale lines and corresponding scale numbers are provided on the dial (13); Wherein, the indicating needle (11) is rotatably connected to the central position of the dial (13).

3. The simple slope ratio measuring device according to claim 2, characterized in that, The housing (12) is integrally in a cylindrical structure with both ends closed and hollow inside, and the housing cover at one end close to the dial (13) is a transparent cover.

4. The simple slope ratio measuring device according to claim 1, characterized in that, One end of the first gear (2) is connected with the indicating needle connecting shaft (7), and the other end of the indicating needle connecting shaft (7) passes through the non-transparent cover end of the housing (12) and is connected with the indicating needle (11).

5. The simple slope ratio measuring device according to claim 1, characterized in that The handle (3) is integrally in a U-shaped structure, and both ends at the opening of the handle (3) are connected above the outside of the housing (12) at the zero graduation line; wherein, an installation groove for installing the spirit level (4) is provided on one side of the top end of the handle (3).

6. The simple slope ratio measuring device according to claim 1, characterized in that, The spirit level (4) is a circular universal spirit level or a cross-shaped spirit level.

7. The simple slope ratio measuring device according to claim 1, characterized in that, The connecting component (5) includes: A connecting column (51), the connecting column (51) is connected to the outside of the non-transparent cover end of the housing (12) directly below the indicating needle connecting shaft (7); A connecting piece (52), the upper part of the connecting piece (52) is sleeved and rotatably connected to the outside of the connecting column (51); A second gear (53), the second gear (53) is rotatably connected to the upper part of the connecting piece (52), and the second gear (53) is meshed and connected with the first gear (2); A limit locking piece (54), the limit locking piece (54) is threadedly connected to the lower part of the connecting piece (52).

8. The simple slope ratio measuring device according to claim 7, characterized in that, The connecting piece (52) includes a connecting plate and a sleeve connected to one side above the connecting plate. The second gear (53) is sleeved on the outside of the sleeve through a bearing. A socket hole communicating with the sleeve is provided through the upper part of the connecting plate, and a locking thread hole threadedly connected with the limit locking piece (54) is provided through the lower part of the connecting plate.

9. The simple slope ratio measuring device according to claim 7, characterized in that, The outer circumference of the second gear (53) is 4 times that of the first gear (2).

10. The simple slope ratio measuring device according to claim 1, characterized in that, The telescopic measuring rod (6) includes: A fixing frame (61), the middle of the upper end of the fixing frame (61) is connected to the lower end of the connecting piece (52), and upper parts at both ends of the fixing frame (61) are symmetrically provided with through grooves along the length direction thereof; Two movable rods (62), the two movable rods (62) are respectively clamped inside both ends of the fixing frame (61); Two connecting blocks (63), one end of each of the two connecting blocks (63) passes through the two sliding grooves and is connected to the movable rod (62) at the corresponding end.

Citation Information

Patent Citations

  • Slope ratio measuring device

    CN214893271U