Auxiliary measuring scale

Abstract

The utility model relates to the technical field of measuring rulers, and discloses an auxiliary measuring ruler which comprises a ruler shell, the right side face of the ruler shell is fixedly connected with an auxiliary handle, the inside of the ruler shell is slidably connected with a telescopic plate, the inner wall of the ruler shell is provided with two limiting grooves, and the two limiting grooves are arranged in the ruler shell. According to the device, through mutual cooperation of the ruler shell, the telescopic plate, the limiting grooves, the depth measurement unit, the width measurement unit and other structures, accurate measurement of the depth of a groove and other measurement objects and the diameters of different depth positions can be achieved, when the depth is measured, the measurement accuracy is improved, and the measurement precision is improved. The ruler shell and the telescopic plate are in sliding connection through the limiting groove and the limiting block, stable stretching and retracting of the telescopic plate are guaranteed, first scale marks and second scale marks on the ruler shell and the telescopic plate are matched, stretching and retracting of the telescopic cylinder and the telescopic rod are combined, the depth can be accurately measured, and the problems that in the prior art, only the depth can be measured singly, and the measuring means are limited are solved.

Description

Technical Field

[0001] This utility model relates to the field of measuring ruler technology, and more specifically, to an auxiliary measuring ruler. Background Technology

[0002] A measuring ruler is a tool based on a scale used to accurately measure linear dimensions such as length and distance. Common types include rulers, tape measures, and vernier calipers. In the field of construction engineering, measuring rulers are an indispensable basic tool. Before construction, measuring rulers are needed to accurately measure the dimensions of the site to provide accurate data for design and planning. During construction, whether it is controlling the length and height of the wall when building a wall or determining the size of the reserved opening when installing doors and windows, measuring rulers are relied upon to ensure construction accuracy.

[0003] A utility model patent application, CN217032227U, discloses an auxiliary measuring ruler for construction engineering cost estimation. While it allows for rapid measurement of sloping trench depth by pulling the spring ruler's strip against the bottom of the trench using a measuring base plate supported by a sleeve and telescopic rod, and by observing the exposed length of the strip, the sleeve maintains the spring ruler's horizontal position, improving measurement accuracy. It also allows for horizontal movement and position adjustment of the spring ruler, facilitating measurements at different locations on the trench bottom. However, this invention has limitations. It can only measure the trench depth and top diameter, not the diameter at different depths within the trench. This necessitates the use of other measuring tools to measure the diameter at different depths, resulting in poor applicability and limitations. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides an auxiliary measuring ruler, which aims to solve the problems in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this application provides the following technical solution: an auxiliary measuring ruler, including a ruler shell, an auxiliary handle fixedly connected to the right side of the ruler shell, a telescopic plate slidably connected inside the ruler shell, two limiting grooves opened on the inner wall of the ruler shell, the bottom of the telescopic plate slidably connected to the two limiting grooves through two limiting blocks, and a depth measuring unit provided on the outer side of the ruler shell.

[0008] The present invention is further configured such that the depth measuring unit includes multiple first and second scale lines engraved on the front of the ruler shell and the front of the telescopic plate. Two telescopic cylinders and two telescopic rods are fixedly connected to the outer surface of the ruler shell and the outer surface of the telescopic plate, respectively. The outer surface of each telescopic rod is slidably connected to the inside of the telescopic cylinder. Multiple threaded holes are opened on the upper surface of each telescopic plate. The inner wall of one of the threaded holes is threadedly connected to the inner wall of the ruler shell with a first positioning bolt.

[0009] The present invention is further configured such that the depth measuring unit includes a movable block located above the ruler shell, the left side of the movable block has two movable openings, the interior of each movable opening is slidably connected to the outer surface of the telescopic cylinder, the interior of the movable block is also provided with a width measuring unit, the inner wall of each movable opening has two compression grooves, the inner wall of each compression groove is fixedly connected with a sleeve and a return spring, one end of each sleeve and one end of each return spring are fixedly connected with a clamping plate, and the outer surface of each clamping plate is in contact with the outer surface of the telescopic cylinder.

[0010] The present invention is further configured such that the width measuring unit includes two first storage cylinders fixedly connected to the inner wall of the moving block, each first storage cylinder having a second storage cylinder slidably connected inside, each second storage cylinder having a storage rod slidably connected inside, and each first storage cylinder, the second storage cylinder, and the storage rod having a third scale line engraved on their outer surfaces.

[0011] The present invention is further configured such that a first compression spring and a second compression spring are fixedly connected to the inner wall of each of the first and second storage tubes, respectively, and one end of each of the first and second compression springs is fixedly connected to one end of the second storage tube and one end of the storage rod, respectively.

[0012] The present invention is further configured such that each of the second storage tubes has a plurality of first positioning holes on its outer surface, each of the storage rods has a plurality of second positioning holes on its outer surface, and a second positioning bolt and a third positioning bolt are slidably connected to the interior of each of the first storage tubes and the interior of each of the second storage tubes, respectively. The outer surfaces of the second positioning bolts and the outer surfaces of the third positioning bolts are respectively threaded with a first nut and a second nut.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By cooperating with the structure of the ruler shell, telescopic plate, limiting groove, depth measuring unit and width measuring unit, it is possible to accurately measure the depth and diameter at different depths of the object to be measured, such as the trench. When measuring the depth, the ruler shell and the telescopic plate are slidably connected through the limiting groove and the limiting block to ensure the stable extension and retraction of the telescopic plate. The first scale line and the second scale line on the ruler shell and the telescopic plate are matched. Combined with the extension and retraction of the telescopic cylinder and the telescopic rod, the position of the telescopic plate is fixed by the first positioning bolt, so that the depth can be accurately measured. This avoids the problem of the existing technology that can only measure depth and has limited measurement means.

[0016] 2. When measuring the diameter at different depths, the moving block slides on the telescopic cylinder through the moving port. The width measuring unit inside the moving block is used for measurement. The compression groove, sleeve, return spring, and clamping plate on the inner wall of the moving port cooperate to position the moving block on the telescopic rod and telescopic cylinder, thereby stabilizing its position at different depths. In the width measuring unit, the first storage cylinder, the second storage cylinder, and the storage rod can freely extend and retract through the elastic force of the first and second compression springs. The extension length is fixed by the first positioning hole, the second positioning hole, the second positioning bolt, the third positioning bolt, the first nut, and the second nut. Data is read according to the third scale line to realize the measurement of the diameter at different depths. This avoids the problem that the existing technology cannot measure the diameter at different depths inside the trench, which leads to the need for other tools and poor applicability. It greatly improves the practicality and applicability of the measuring ruler. Attached Figure Description

[0017] Figure 1 This is a three-dimensional overall structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the ruler shell of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the telescopic plate of this utility model;

[0020] Figure 4 This is a cross-sectional three-dimensional structural diagram of the movable block of this utility model;

[0021] Figure 5 This is a detailed three-dimensional enlarged structural diagram of the reset spring of this utility model;

[0022] Figure 6 This is a cross-sectional perspective view of the first storage tube of this utility model.

[0023] In the diagram: 1. Ruler housing; 2. Second nut; 3. Auxiliary handle; 4. First scale line; 5. Storage rod; 6. Second storage cylinder; 7. First positioning bolt; 8. Second scale line; 9. Telescopic plate; 10. Telescopic rod; 11. First storage cylinder; 12. Moving block; 13. Telescopic cylinder; 14. Limiting groove; 15. Threaded hole; 16. Return spring; 17. Sleeve; 18. Clamping plate; 19. First positioning hole; 20. Third scale line; 21. Second positioning bolt; 22. Third positioning bolt; 23. Second positioning hole; 24. Moving opening; 25. Compression groove; 26. First compression spring; 27. Second compression spring; 28. First nut. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figures 1-6 The device includes a ruler shell 1, an auxiliary handle 3 fixedly connected to the right side of the ruler shell 1, a telescopic plate 9 slidably connected inside the ruler shell 1, two limiting grooves 14 opened on the inner wall of the ruler shell 1, the bottom of the telescopic plate 9 slidably connected to the two limiting grooves 14 through two limiting blocks, and a depth measuring unit provided on the outer side of the ruler shell 1.

[0028] Specifically, when using it, hold the auxiliary handle 3 and place the ruler shell 1 at the position to be measured. If you want to measure the depth, the telescopic plate 9 can slide along the limiting groove 14 inside the ruler shell 1 through the bottom limiting block. This structural design makes the sliding of the telescopic plate 9 stable and the guidance precise, avoiding deviation during extension and retraction, and providing a basis for accurate depth measurement. At this time, this structure solves the problem that the tool cannot be stably extended when measuring depth, and achieves the effect of stable extension and retraction, preparing for subsequent accurate measurement.

[0029] Please see Figures 1-6The depth measuring unit includes multiple first scale lines 4 and second scale lines 8 engraved on the front of the ruler shell 1 and the front of the telescopic plate 9. Two telescopic cylinders 13 and two telescopic rods 10 are fixedly connected to the outer surface of the ruler shell 1 and the outer surface of the telescopic plate 9, respectively. The outer surface of each telescopic rod 10 is slidably connected to the inside of the telescopic cylinder 13. Multiple threaded holes 15 are opened on the upper surface of each telescopic plate 9. The inner wall of one of the threaded holes 15 is threadedly connected to the inner wall of the ruler shell 1 with a first positioning bolt 7.

[0030] Specifically, during depth measurement, the telescopic plate 9 extends and retracts within the ruler housing 1. The first scale line 4 and the second scale line 8 on the ruler housing 1 and the telescopic plate 9 cooperate with each other, and the measured depth is obtained by reading the scale difference. At the same time, the telescopic cylinder 13 on the outer surface of the ruler housing 1 and the telescopic rod 10 on the outer surface of the telescopic plate 9 are slidably connected to further assist in the depth measurement. After the telescopic plate 9 is adjusted to the appropriate position, the first positioning bolt 7 passes through the threaded hole 15 on the telescopic plate 9 and is threadedly connected to the inner wall of the ruler housing 1 for fixation. This ensures that the position of the telescopic plate 9 is stable during the measurement process, ensuring accurate depth measurement. This solves the problems of inaccurate readings and unstable measurement process during depth measurement, and achieves the effect of accurate depth measurement.

[0031] Please see Figures 1-6 The depth measuring unit also includes a movable block 12 located above the ruler shell 1. Two movable ports 24 are opened on the left side of the movable block 12. The interior of each movable port 24 is slidably connected to the outer surface of the telescopic cylinder 13. A width measuring unit is also provided inside the movable block 12. Two compression grooves 25 are opened on the inner wall of each movable port 24. A sleeve 17 and a return spring 16 are fixedly connected to the inner wall of each compression groove 25. A clamping plate 18 is fixedly connected to one end of each sleeve 17 and one end of each return spring 16. The outer surface of each clamping plate 18 is in contact with the outer surface of the telescopic cylinder 13.

[0032] Specifically, when it is necessary to measure the diameter at different depths, the moving block 12 slides on the outer surface of the telescopic cylinder 13 through the moving port 24 on its left side. The sleeve 17, the return spring 16, and the clamping plate 18 in the compression groove 25 on the inner wall of the moving port 24 cooperate with each other. The elastic force of the return spring 16 makes the clamping plate 18 tightly fit against the outer surface of the telescopic cylinder 13, so that the moving block 12 can be stably stopped at different depth positions, providing a stable measurement base point for measuring the diameter at different depths. This solves the problem of the measuring tool being difficult to stably position when measuring the diameter at different depths, and achieves the effect of stable positioning of the measurement position.

[0033] Please see Figures 1-6The width measuring unit includes two first storage cylinders 11 fixedly connected to the inner wall of the moving block 12. A second storage cylinder 6 is slidably connected inside each first storage cylinder 11. A storage rod 5 is slidably connected inside each second storage cylinder 6. A third scale line 20 is engraved on the outer surface of each first storage cylinder 11, the outer surface of the second storage cylinder 6, and the outer surface of the storage rod 5. A first compression spring 26 and a second compression spring 27 are fixedly connected to the inner wall of each first storage cylinder 11 and the inner wall of the second storage cylinder 6, respectively. One end of each first compression spring 26 and one end of each second compression spring 27 are fixedly connected to one end of the second storage cylinder 6 and one end of the storage rod 5, respectively.

[0034] Specifically, after the moving block 12 stabilizes at the required measurement depth, the diameter is measured using its internal width measuring unit. The second storage cylinder 6 inside the first storage cylinder 11 and the storage rod 5 inside the second storage cylinder 6 extend and retract freely under the elastic force of the first compression spring 26 and the second compression spring 27, respectively. When the storage rod 5 and the second storage cylinder 6 extend to a suitable length and contact the two sides of the object being measured, the third scale line 20 on the outer surface of the first storage cylinder 11, the second storage cylinder 6 and the storage rod 5 can be used to read data, thereby realizing the measurement of the diameter at different depths. This solves the problem of not being able to measure the diameter at different depths inside the trench and achieves the effect of accurately measuring the diameter at different depths.

[0035] Please see Figures 1-6 Each second storage tube 6 has multiple first positioning holes 19 on its outer surface, and each storage rod 5 has multiple second positioning holes 23 on its outer surface. The interior of each first storage tube 11 and the interior of each second storage tube 6 are respectively slidably connected with a second positioning bolt 21 and a third positioning bolt 22. The outer surfaces of the second positioning bolt 21 and the third positioning bolt 22 are respectively threaded with a first nut 28 and a second nut 2.

[0036] Specifically, to more accurately fix the extension length of the storage rod 5 and the second storage tube 6, multiple first positioning holes 19 are opened on the outer surface of the second storage tube 6, and multiple second positioning holes 23 are opened on the outer surface of the storage rod 5. The second positioning bolt 21 inside the first storage tube 11 passes through the first positioning hole 19 and is fixed by the first nut 28, and the third positioning bolt 22 inside the second storage tube 6 passes through the second positioning hole 23 and is fixed by the second nut 2. This structure ensures that the extension length of the measuring component is fixed when measuring diameters of different depths, avoiding measurement errors caused by component slippage, and further improving measurement accuracy. During measurement, the approximate distance of the inner diameter of the groove can be visually estimated first, and then measured through the second storage tube 6. The storage rod 5 extends and retracts inside the first storage cylinder 11, and is positioned solely by the second positioning bolt 21 and the first nut 28. Alternatively, the storage rod 5 retracts inside the second storage cylinder 6, and is positioned solely by the third positioning bolt 22 in conjunction with the second nut 2. When inserted into the groove, the storage rods 5 on both sides extend and retract freely under the elastic force of the first compression spring 26 or the second compression spring 27. After reaching the inside of the groove, they extend and retract freely under the elastic force of the first compression spring 26 and the second compression spring 27. This facilitates the measurement of the diameter of different groove depths, solves the problem of errors caused by the unstable extension length of the component during measurement, and achieves the effect of improving measurement accuracy.

[0037] Working principle:

[0038] When using this auxiliary measuring ruler, hold the auxiliary handle 3 and place the ruler shell 1 at the measuring position. If measuring depth, the limiting block at the bottom of the telescopic plate 9 slides along the limiting groove 14 on the inner wall of the ruler shell 1 to ensure stable telescopic extension. The first scale line 4 and the second scale line 8 on the ruler shell 1 and the telescopic plate 9 cooperate with each other. At the same time, the telescopic cylinder 13 outside the ruler shell 1 slides and connects with the telescopic rod 10 outside the telescopic plate 9 to assist in the measurement. After adjusting the position of the telescopic plate 9, the first positioning bolt 7 passes through the threaded hole 15 on the telescopic plate 9 and is threadedly connected to the inner wall of the ruler shell 1 to fix it, so as to achieve accurate depth measurement. If measuring the diameter at different depths, the moving block 12 slides on the outer surface of the telescopic cylinder 13 through the moving port 24 on its left side. The sleeve 17, the return spring 16 and the clamping plate 18 in the compression groove 25 on the inner wall of the moving port 24 cooperate to make the clamping plate 18 adhere to the outer surface of the telescopic cylinder 13 under the elastic force of the return spring 16, so that the moving block 12 stays stably at different depth positions. During measurement, the approximate distance of the inner diameter of the groove can be visually estimated first. If the estimated diameter is large, the second storage tube 6 is stretched outward from the first storage tube 11. The extension length is adjusted according to the visual estimation result. Then, the second positioning bolt 21 is passed through the first positioning hole 19 at the corresponding position on the outer surface of the second storage tube 6, and the first nut 28 is tightened to fix the second storage tube 6 inside the first storage tube 11. If the estimated diameter is small, the storage rod 5 is operated to retract inside the second storage tube 6. After adjusting to a suitable length, the third positioning bolt 22 is passed through the second positioning hole 23 on the outer surface of the storage rod 5 and tightened with the second nut 2 to stably position the storage rod 5 inside the second storage tube 6. After completing the above preparations, the measuring ruler is inserted into the groove. The two storage rods 5 on both sides will extend and retract freely under the elastic force of the first compression spring 26 or the second compression spring 27. During the insertion process, they adapt to the shape and space inside the groove and smoothly reach the measurement position. After reaching the predetermined measurement depth inside the groove, the storage rods 5 continue to extend and retract flexibly under the elastic force of the first compression spring 26 and the second compression spring 27 until both ends contact the inner wall of the groove. At this time, the data is read according to the third scale line 20 on the outer surface of the first storage cylinder 11, the second storage cylinder 6 and the storage rod 5. If more accurate measurement is required, the extension length of the second storage cylinder 6 and the storage rod 5 can be further fixed by the positioning bolts and nuts to avoid errors caused by component slippage. Finally, the accurate measurement of the depth of the groove and the diameter at different depths is achieved, which solves the problems of limited measurement methods, inability to measure the diameter at different depths inside the groove and low measurement accuracy of the existing technology.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A supplementary measuring scale comprising a scale housing (1), characterised in that: The right side of the ruler shell (1) is fixedly connected with an auxiliary handle (3), the inside of the ruler shell (1) is slidably connected with a telescopic plate (9), the inner wall of the ruler shell (1) is provided with two limiting grooves (14), the bottom of the telescopic plate (9) is slidably connected with the two limiting grooves (14) through two limiting blocks, and the outer side of the ruler shell (1) is provided with a depth measuring unit.

2. An auxiliary measuring scale according to claim 1, characterized in that: The depth measuring unit comprises a plurality of first scale lines (4) and second scale lines (8) engraved on the front surface of the ruler shell (1) and the front surface of the telescopic plate (9), the outer surface of the ruler shell (1) and the outer surface of the telescopic plate (9) are fixedly connected with two telescopic cylinders (13) and two telescopic rods (10) respectively, the outer surface of each telescopic rod (10) is slidably connected with the inside of the telescopic cylinder (13), and the upper surface of each telescopic plate (9) is provided with a plurality of threaded holes (15), wherein the inner wall of one threaded hole (15) is threadedly connected with the first positioning bolt (7) and the inner wall of the ruler shell (1).

3. An auxiliary measuring scale according to claim 2, wherein: The depth measuring unit further comprises a moving block (12) located above the ruler shell (1), the left side of the moving block (12) is provided with two moving openings (24), the inside of each moving opening (24) is slidably connected with the outer surface of the telescopic cylinder (13), the inside of the moving block (12) is further provided with a width measuring unit, the inner wall of each moving opening (24) is provided with two compression grooves (25), the inner wall of each compression groove (25) is fixedly connected with a sleeve (17) and a reset spring (16), one end of each sleeve (17) and one end of each reset spring (16) are fixedly connected with a clamping plate (18), and the outer surface of each clamping plate (18) is in contact with the outer surface of the telescopic cylinder (13).

4. An auxiliary measuring scale according to claim 3, wherein: The width measuring unit comprises two first receiving cylinders (11) fixedly connected to the inner wall of the moving block (12), the inside of each first receiving cylinder (11) is slidably connected with a second receiving cylinder (6), the inside of each second receiving cylinder (6) is slidably connected with a receiving rod (5), and the outer surface of each first receiving cylinder (11), the outer surface of each second receiving cylinder (6) and the outer surface of each receiving rod (5) are engraved with third scale lines (20).

5. An auxiliary measuring scale according to claim 4, wherein: The inner wall of each first receiving cylinder (11) and the inner wall of each second receiving cylinder (6) are fixedly connected with a first compression spring (26) and a second compression spring (27) respectively, and one end of each first compression spring (26) and one end of each second compression spring (27) are fixedly connected with one end of each second receiving cylinder (6) and one end of each receiving rod (5).

6. An auxiliary measuring scale according to claim 5, wherein: The outer surface of each of the second receiving barrels (6) is provided with a plurality of first positioning holes (19), the outer surface of each of the receiving rods (5) is provided with a plurality of second positioning holes (23), the inside of each of the first receiving barrels (11) and the inside of the second receiving barrels (6) are respectively slidably connected with a second positioning bolt (21) and a third positioning bolt (22), and the outer surface of the second positioning bolt (21) and the outer surface of the third positioning bolt (22) are respectively threadedly connected with a first nut (28) and a second nut (2).

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