Easy-to-adjust angle measuring scale for engineering surveying

Abstract

The utility model discloses a convenient-to-adjust angle measuring scale for engineering surveying, which comprises a measuring main scale and a measuring auxiliary scale which rotate relatively, the top of the measuring main scale is fixedly connected with a dial, one side of the measuring main scale and one side of the measuring auxiliary scale are respectively provided with a telescopic mechanism, and the end part of each telescopic mechanism is provided with a small measuring mechanism. According to the utility model, one side of the measuring main ruler and one side of the measuring auxiliary ruler are provided with the small-sized measuring mechanism with the telescoping mechanism, so that the main body part of the angle measuring ruler does not need to be directly based on a measured part, and measurement can be carried out only by extending the small-sized measuring mechanism with a small volume into an included angle needing to be measured; the situation that operation is affected by the large-size measuring ruler body is avoided, the device can be adapted to narrow included angle measurement, and the situation that operation and reading are inconvenient due to the fact that the whole measuring ruler is shrunk for measuring narrow included angles is avoided, and the telescopic mechanism is arranged between the small measuring mechanism and the measuring ruler body. And the distance between the two can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering survey technical field, especially an angle measuring scale for engineering survey convenient to adjust. BACKGROUND

[0002] The angle measuring scale is the tool for accurately determining the included angle between objects in engineering survey, and is widely used in fields such as building, mechanical manufacturing and civil engineering, and the core role of the angle measuring scale is to accurately determine and calibrate the angle relationship between objects, which directly affects the engineering quality and construction efficiency. With the development of science and technology, the requirements for measuring tools in the field of engineering survey are also constantly improving. In order to meet these needs, an angle measuring scale for engineering survey convenient to adjust has emerged as the times require, and the original design intention of this measuring scale is to solve the problems existing in traditional angle measuring tools and improve the accuracy and efficiency of measurement.

[0003] The measuring part of the existing angle measuring scale is relatively large in volume, and cannot enter the narrow space for angle measurement.

[0004] In the Chinese patent document with the publication number CN202321623750.5, an engineering measuring scale is disclosed, which includes a first measuring scale, a second measuring scale and an angle measuring scale. The front end of the first measuring scale is provided with a scale slot, the left side of the scale slot is provided with a hinged second measuring scale, the rear end of the first measuring scale is connected with the angle measuring scale, the right side of the first measuring scale is provided with a tape measure assembly, the right rear end and the front end of the first measuring scale are provided with clamping assemblies, the rear end of the first measuring scale, the rear end of the second measuring scale and the rear end of the angle measuring scale are all provided with scales, and the rear end of the first measuring scale is provided with a level. However, the volume of the measuring part of the engineering measuring scale is relatively large, and it cannot be used for angle measurement in narrow spaces.

[0005] In order to solve the above-mentioned problems existing in the prior art, it is a problem worthy of study to provide an angle measuring scale for engineering survey convenient to adjust. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at overcoming the problem that the volume of the measuring part of the existing angle measuring scale is relatively large, and it cannot enter the narrow space for angle measurement, and provides an angle measuring scale for engineering survey convenient to adjust, which realizes the technical effect that the volume of the measuring part of the angle measuring scale is relatively small and can enter the narrow space.

[0007] The utility model realizes the technical effect that the volume of the measuring part of the angle measuring scale is relatively small and can enter the narrow space.

[0008] The utility model provides an angle measuring scale for engineering surveying which is convenient to adjust, comprising a measuring main scale and a measuring auxiliary scale which are relatively rotatable, a scale dial is fixedly connected to the top of the measuring main scale, a telescopic mechanism is arranged on one side of the measuring main scale and the measuring auxiliary scale, and a small measuring mechanism is arranged at the end of the telescopic mechanism.

[0009] The telescopic mechanism comprises two base plates which are respectively fixedly connected to one side of the measuring main scale and the measuring auxiliary scale, a sliding groove is formed in the base plate, and two telescopic plates are slidably connected to the base plate through the sliding groove, the end of the telescopic plate is fixedly connected to the small measuring mechanism, when the two surfaces to be measured are not intersected, the position of the two measuring parts can be respectively adjusted by adjusting the position of the telescopic plate, the two small measuring parts are respectively attached to the two surfaces, and the measuring result can be read from the included angle of the measuring main scale and the measuring auxiliary scale.

[0010] The cross-sectional shape of the sliding groove is matched with the cross-sectional shape of the telescopic plate, the middle part of the two sides of the sliding groove extends outward, the friction coefficient of the sliding groove and the telescopic plate is greater than 1, the friction coefficient of the sliding groove and the telescopic plate is limited, so that sufficient friction exists between the sliding groove and the telescopic plate, and the telescopic mechanism can maintain the adjusted length when no external force is applied.

[0011] The small measuring mechanism comprises two measuring plates which are respectively fixedly connected to the end of the telescopic plate, the cross-sectional shape of the measuring plate is triangular, the corner of the two measuring plates is relatively rotatable, and the axis of relative rotation between the measuring plates coincides with the axis of rotation between the measuring main scale and the measuring auxiliary scale, the measuring plate is provided in the shape of a triangle, so that the thickness of the contact part of the two measuring plates is smaller, and the thickness of the measuring plate itself does not affect the measurement accuracy of the included angle.

[0012] The scale dial is a semicircular ring, the inner radius of the scale dial is matched with the length of the measuring auxiliary scale, an angle scale is formed on the front side of the scale dial, the end of the measuring auxiliary scale points to the scale dial, and the angle scale pointed by the measuring auxiliary scale is the included angle to be measured, so that the angle of the measuring main scale and the measuring auxiliary scale can be measured.

[0013] A torsion spring is sleeved at one end of the rotation shaft between the measuring main scale and the measuring auxiliary scale, the torsion of the torsion spring causes the measuring main scale and the measuring auxiliary scale to be opened, and the torsion of the torsion spring is greater than the total weight of the measuring auxiliary scale and the telescopic mechanism.

[0014] A handle is fixedly connected to one side of the top of the measuring main scale, the handle is located on the outer side of the scale dial, and anti-skid lines are formed on the outer side of the handle, so that the operator can hold the handle with one hand and operate with the other hand when the angle is measured, and the measuring process can be more stable and the measuring device can be held more stably.

[0015] Positive beneficial effects:

[0016] 1. The angle measuring scale for engineering measurement is convenient to adjust, which can be suitable for narrow angle measurement and avoid the inconvenience of operation and reading caused by the overall reduction of the measuring scale for measuring narrow angle, the small measuring mechanism and the measuring scale body are arranged as a telescopic mechanism, the distance between the two can be adjusted, when the measured angle is located in the deep part of narrow space, the telescopic mechanism can be elongated to realize the adjustment of the measuring distance, and the telescopic mechanism can be suitable for more measurement scenes.

[0017] 2. The angle measuring scale for engineering measurement is convenient to adjust, the axis line between the measuring plates coincides with the axis line of the rotating shaft between the main measuring scale and the auxiliary measuring scale, the angle between the two measuring plates is equal to the angle between the main measuring scale and the auxiliary measuring scale, and then the angle of the measured angle can be read from the main measuring scale and the auxiliary measuring scale.

[0018] 3. The angle measuring scale for engineering measurement is convenient to adjust, in the process that the measuring plate drives the auxiliary measuring scale to rotate, the end of the auxiliary measuring scale points to the scale disc, and the angle scale pointed by the auxiliary measuring scale is the measured angle, so that the angle measurement of the main measuring scale and the auxiliary measuring scale is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a structural schematic view of the utility model Figure 1 It is an enlarged structural schematic view of A in the utility model;

[0021] Figure 3 It is an enlarged structural schematic view of B in the utility model Figure 1 It is an enlarged structural schematic view of B in the utility model;

[0022] Figure 4 It is a front end rear view structural schematic view of the utility model;

[0023] Figure 5 It is a front end front view structural schematic view of the utility model;

[0024] Figure 6 It is an enlarged structural schematic view of C in the utility model Figure 5 It is an enlarged structural schematic view of C in the utility model;

[0025] Figure 7 It is a sectional view structural schematic view of the utility model;

[0026] Figure 8 It is an enlarged structural schematic view of D in the utility model Figure 7 It is an enlarged structural schematic view of D in the utility model;

[0027] In the diagram: 1-Main measuring scale, 2-Secondary measuring scale, 3-Scale dial, 4-Base plate, 5-Sliding groove, 6-Telescopic plate, 7-Measuring plate, 8-Angle scale, 9-Torque spring, 10-Handle. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] Example 1

[0030] like Figures 1 to 8 As shown, an adjustable angle measuring ruler for engineering surveying includes a main measuring ruler 1 and a secondary measuring ruler 2 that rotate relative to each other. A scale 3 is fixedly connected to the top of the main measuring ruler 1. A telescopic mechanism is provided on one side of both the main measuring ruler 1 and the secondary measuring ruler 2. A small measuring mechanism is provided at the end of the telescopic mechanism.

[0031] like Figures 4 to 8 As shown, the telescopic mechanism includes two base plates 4 fixedly connected to one side of the main measuring scale 1 and the secondary measuring scale 2, respectively. A sliding groove 5 is provided on the base plate 4, and two telescopic plates 6 are slidably connected to the base plate 4 via the sliding groove 5. The ends of the telescopic plates 6 are fixedly connected to a small measuring mechanism. By setting a small measuring mechanism with a telescopic mechanism on one side of the main measuring scale 1 and the secondary measuring scale 2, the main body of the angle measuring scale does not need to be directly connected to the measured part. Only the small measuring mechanism needs to be inserted into the angle to be measured to perform the measurement. This avoids the situation where the large main body of the measuring scale affects operation, allowing the device to adapt to narrow angle measurements. It also avoids the situation where the entire measuring scale is reduced in size to measure narrow angles, leading to inconvenience in operation and reading. The telescopic mechanism between the small measuring mechanism and the main body of the measuring scale allows for adjustment of the distance between them. When the measured angle is located deep in a narrow space, the telescopic mechanism can be extended to adjust the measurement distance, making it suitable for more measurement scenarios.

[0032] Furthermore, when the two surfaces to be measured are not intersecting, the positions of the two measuring parts can be adjusted by adjusting the position of the telescopic plate 6, so that the two small measuring parts are in contact with the two surfaces respectively, and the measurement results can be read from the included angle of the main measuring scale 1 and the auxiliary measuring scale 2.

[0033] like Figures 7 to 8As shown, the cross-sectional shape of the sliding groove 5 is adapted to the cross-sectional shape of the telescopic plate 6. Both sides of the sliding groove 5 extend outwards from the middle. The friction coefficient between the sliding groove 5 and the telescopic plate 6 is greater than one. By extending both sides of the sliding groove 5 outwards, the cross-section of the sliding groove 5 forms a cross structure, which has a better limiting effect on the telescopic plate 6, so that the telescopic plate 6 can remain stable during the extension and retraction process. This avoids the situation where the telescopic plate 6 shakes during the extension and retraction process, causing the measuring main scale 1 and measuring auxiliary scale 2 to be out of parallel with the measuring plate 7, thus affecting the measurement accuracy. The friction coefficient between the sliding groove 5 and the telescopic plate 6 is limited, so that there is sufficient friction between the two, and the telescopic mechanism can maintain the adjusted length when no external force is applied.

[0034] Example 2

[0035] like Figures 1 to 6 As shown, the small measuring mechanism includes two measuring plates 7 fixedly connected to the ends of the telescopic plate 6. The cross-sectional shape of the measuring plates 7 is triangular. One corner of the two measuring plates 7 rotates relative to each other. The axis of relative rotation between the measuring plates 7 coincides with the axis of rotation between the main measuring scale 1 and the secondary measuring scale 2. By setting the triangular measuring plates 7 at the ends of the telescopic plate 6, the measurement is completed by the contact between the smaller measuring plates 7 and the included angle to be measured. Since the axis between the measuring plates 7 coincides with the axis of rotation between the main measuring scale 1 and the secondary measuring scale 2, the included angle between the two measuring plates 7 is equal to the included angle between the main measuring scale 1 and the secondary measuring scale 2. Therefore, the angle of the included angle to be measured can be read from the angle between the main measuring scale 1 and the secondary measuring scale 2.

[0036] Setting the measuring plate 7 as a triangle reduces the thickness of the contact area between the two parts, thus preventing its own thickness from affecting the accuracy of the angle measurement.

[0037] like Figures 1 to 4 As shown, the dial 3 is a semi-circular ring. The inner radius of the dial 3 is adapted to the length of the measuring scale 2. An angle scale 8 is provided on the front side of the dial 3. By setting the dial 3 on the top of the measuring main scale 1, when the measuring plate drives the measuring scale 2 to rotate, the end of the measuring scale 2 points to the dial 3. The angle scale 8 pointed to by the measuring scale 2 is the included angle to be measured, thereby realizing the measurement of the angle between the measuring main scale 1 and the measuring scale 2.

[0038] Example 3

[0039] like Figures 1 to 2As shown, the end of the rotation shaft between the measuring main ruler 1 and the measuring auxiliary ruler 2 is sleeved with a torsion spring 9, the torsion of the torsion spring 9 makes the measuring main ruler 1 and the measuring auxiliary ruler 2 open, the torsion of the torsion spring 9 is greater than the total weight of the measuring auxiliary ruler 2 and the telescopic mechanism, by arranging the torsion spring 9 on the rotation shaft of the measuring main ruler 1 and the measuring auxiliary ruler 2, the two can automatically open under the action of the torsion of the torsion spring 9, meanwhile, the two measuring plates 7 are relatively opened, when angle measurement is carried out, the measuring main ruler 1 and the measuring auxiliary ruler 2 are pressed to be close to each other, then the measuring plates 7 are close to the measured angle, after the pressing of the measuring main ruler 1 and the measuring auxiliary ruler 2 is released, the measuring plates 7 are also opened under the action of the torsion spring 9, the outer sides of the two measuring plates 7 are respectively fully close to the two sides of the angle, the situation that the measuring plates 7 are not fully close during measurement is avoided, thereby the measurement precision is improved, meanwhile, the operation of the angle measurement device is more convenient.

[0040] As shown in the figure, Figures 1 to 3 The top side of the measuring main ruler 1 is fixedly connected with a handle 10, the handle 10 is located at the outer side of the scale disc 3, the outer side of the handle 10 is provided with anti-skid lines, by arranging the handle 10 on the measuring main ruler 1, when angle measurement is carried out, the operator can hold the handle 10 with one hand and operate with the other hand, the measurement device can be held more stably during measurement, the hand shake influence on the measurement precision is avoided, the situation that the vision is blocked by pinching the scale disc 3 or the measuring main ruler 1 to affect the reading is also avoided, meanwhile, the operation convenience of the measurement device is improved.

[0041] The working principle of the utility model is as follows:

[0042] S1, when angle measurement is carried out, the measuring main ruler 1 and the measuring auxiliary ruler 2 are pressed to be close to each other, then the measuring plates 7 are close to the measured angle;

[0043] S2, after the pressing of the measuring main ruler 1 and the measuring auxiliary ruler 2 is released, the measuring plates 7 are also opened under the action of the torsion spring 9, the outer sides of the two measuring plates 7 are respectively fully close to the two sides of the angle, the situation that the measuring plates 7 are not fully close during measurement is avoided;

[0044] S3, the axis between the measuring plates 7 coincides with the rotation shaft axis between the measuring main ruler 1 and the measuring auxiliary ruler 2, the angle between the two measuring plates 7 is equal to the angle between the measuring main ruler 1 and the measuring auxiliary ruler 2, then the angle of the measured angle can be read from the angle of the measuring main ruler 1 and the measuring auxiliary ruler 2;

[0045] S4, in the process that the measuring auxiliary ruler 2 is driven by the measuring plate to rotate, the end of the measuring auxiliary ruler 2 points to the scale disc 3, the angle scale 8 pointed by the measuring auxiliary ruler 2 is the measured angle, thereby the measurement of the angle of the measuring main ruler 1 and the measuring auxiliary ruler 2 is realized.

Claims

1. An easily adjustable angle measuring ruler for engineering surveying, comprising a main measuring ruler (1) and a secondary measuring ruler (2) that rotate relative to each other, characterized in that: The top of the main measuring scale (1) is fixedly connected to a dial (3). Both the main measuring scale (1) and the secondary measuring scale (2) are provided with telescopic mechanisms on one side, and a small measuring mechanism is provided at the end of the telescopic mechanism.

2. The easily adjustable angle measuring ruler for engineering surveying according to claim 1, characterized in that: The telescopic mechanism includes two base plates (4) fixedly connected to one side of the main measuring scale (1) and the auxiliary measuring scale (2), respectively, with sliding grooves (5) on the base plates (4), and two telescopic plates (6) slidably connected to the base plates (4) through the sliding grooves (5). The ends of the telescopic plates (6) are fixedly connected to the small measuring mechanism.

3. The easily adjustable angle measuring ruler for engineering surveying according to claim 2, characterized in that: The cross-sectional shape of the sliding groove (5) is adapted to the cross-sectional shape of the telescopic plate (6). The middle of both sides of the sliding groove (5) extends outward. The coefficient of friction between the sliding groove (5) and the telescopic plate (6) is greater than one.

4. The easily adjustable angle measuring ruler for engineering surveying according to claim 2, characterized in that: The small measuring mechanism includes two measuring plates (7) that are fixedly connected to the ends of the telescopic plate (6). The cross-sectional shape of the measuring plate (7) is triangular. One corner of the two measuring plates (7) rotates relative to each other. The axis of relative rotation between the measuring plates (7) coincides with the axis of rotation between the main measuring scale (1) and the auxiliary measuring scale (2).

5. The easily adjustable angle measuring ruler for engineering surveying according to claim 1, characterized in that: The dial (3) is a semi-circular ring. The inner radius of the dial (3) is adapted to the length of the measuring scale (2). Angle scales (8) are provided on the front side of the dial (3).

6. The adjustable angle measuring ruler for engineering surveying according to claim 1, characterized in that: A torsion spring (9) is sleeved at one end of the rotating shaft between the main measuring scale (1) and the auxiliary measuring scale (2). The torsion of the torsion spring (9) causes the main measuring scale (1) and the auxiliary measuring scale (2) to open. The torsion of the torsion spring (9) is greater than the total weight of the auxiliary measuring scale (2) and the telescopic mechanism.

7. The easily adjustable angle measuring ruler for engineering surveying according to claim 1, characterized in that: A handle (10) is fixedly connected to one side of the top of the measuring scale (1). The handle (10) is located on the outside of the scale (3), and anti-slip texture is provided on the outside of the handle (10).

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