Measuring scale for civil engineering

Abstract

The utility model relates to the technical field of measuring scales, and discloses a civil engineering measuring scale comprising a housing, the front surface of the housing is provided with a rectangular groove, and the interior of the housing is movably provided with an extension scale; and the sleeve is movably installed in the rectangular groove, a connecting shaft is movably installed in the sleeve, one end of the connecting shaft is fixedly connected with the surface of the extension ruler, and a first gear is fixedly installed at the other end of the connecting shaft. Different measurement requirements can be met by adjusting and changing the angle of the extension ruler, a horizontal angle or a vertical angle can be measured by adjusting the angle, the flexibility enables the measurement work to be more convenient and efficient, a more accurate measurement result can be obtained by accurately adjusting the angle of the extension ruler, and the measurement accuracy is improved. In civil engineering, accurate angle measurement is crucial to the calculation of the position, elevation and tilt distance of a determined point.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring rulers, and more specifically, to a measuring ruler for civil engineering. Background Art

[0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It refers to the materials, equipment used, and the technical activities such as surveying, design, construction, maintenance, and repair carried out, as well as the objects of engineering construction, that is, various engineering facilities built on the ground, underground, or on land, which directly or indirectly serve human life, production, military, and scientific research. Existing civil engineering measuring rulers have certain drawbacks. Although a single ruler, tape measure, or protractor has its own uses, the combination and switching of these tools in civil engineering may cause inconvenience, especially when working on site, it is necessary to frequently carry and replace different tools, and the existing measuring rulers can basically only be stretched horizontally, and cannot be adjusted according to actual conditions, so the practicality is low. Therefore, this paper is committed to a new type of civil engineering measuring ruler. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a measuring ruler for civil engineering, which has the advantage of high practicality.

[0004] To achieve the above object, the utility model provides the following technical solution: a measuring ruler for civil engineering, comprising a shell, a rectangular groove is provided on the front of the shell, and an extension ruler is movably installed inside the shell;

[0005] A sleeve, wherein the sleeve is movably mounted inside the rectangular groove, a connecting shaft is movably mounted inside the sleeve, one end of the connecting shaft is fixedly connected to the surface of the extension ruler, and a gear 1 is fixedly mounted on the other end of the connecting shaft;

[0006] A fixed plate, the fixed plate is fixedly mounted on the surface of the sleeve, a movable shaft is fixedly mounted on the fixed plate, a gear 2 is movably mounted on one end of the movable shaft, the gear 2 is in meshing state with the gear 1, a circular groove is opened on the surface of the gear 2 and penetrates the gear 2;

[0007] A bracket, wherein the bracket is fixedly mounted on the bottom of the fixing plate;

[0008] The limiting roller is movably installed inside the bracket and extends to the inside of the circular groove.

[0009] As a preferred technical solution of the utility model, a limiting groove is provided on the top of the housing, and a transverse groove is provided inside the limiting groove;

[0010] A movable block, wherein the movable block is movably mounted inside the limiting groove;

[0011] Limit blocks, the limit blocks are fixedly mounted at both ends of the movable block, and the two limit blocks are movably mounted inside the transverse groove;

[0012] An angle ruler is fixedly mounted on the top of the movable block.

[0013] As a preferred technical solution of the utility model, a rectangular cavity is provided inside the shell, and an outlet groove is provided on the right side surface of the shell;

[0014] The reel is fixedly installed inside the rectangular cavity, and a measuring tape is arranged on the surface of the rectangular cavity and extends to the outside of the shell through the outlet slot.

[0015] As a preferred technical solution of the utility model, the shell is made entirely of plastic, the extension ruler is made entirely of aluminum alloy, and the limiting roller is made of stainless steel.

[0016] As a preferred technical solution of the utility model, a damping layer is arranged on the inner wall of the rectangular groove, and the inner diameter value of the transverse groove is equal to the outer diameter value of the limit block.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model rotates gear 2 to rotate gear 1, and the extension ruler also rotates synchronously. After adjusting to a suitable position, the gear 2 is fixed using a limiting roller. Compared with the traditional device, this device can adapt to different measurement needs by adjusting the angle of the extension ruler. Whether it is a horizontal angle or a vertical angle, it can be measured by adjusting the angle. This flexibility makes the measurement work more convenient and efficient, and by accurately adjusting the angle of the extension ruler, a more accurate measurement result can be obtained. In civil engineering, accurate angle measurement is crucial for determining the position of a point, the elevation, and the calculation of the inclined distance.

[0019] 2. The utility model pushes the angle ruler to make the movable block slide inside the limit groove and at the same time make the limit block slide inside the transverse groove. Compared with the traditional device, this device can be suitable for measuring extension rulers of different lengths through the flexible movement of the angle ruler, and the accuracy of the angle ruler when measuring the extension ruler is better, thereby avoiding errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0022] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the housing of the utility model;

[0023] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the measuring tape of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the extension ruler of the utility model.

[0025] In the figure: 1. outer shell; 2. extension ruler; 3. rectangular groove; 4. sleeve; 5. connecting shaft; 6. gear 1; 7. fixed plate; 8. movable shaft; 9. gear 2; 10. circular groove; 11. bracket; 12. limit roller; 13. limit groove; 14. transverse groove; 15. movable block; 16. limit block; 17. angle ruler; 18. rectangular cavity; 19. scroll; 20. measuring tape; 21. outlet groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, the utility model provides a measuring ruler for civil engineering, comprising a housing 1, a rectangular groove 3 is provided on the front of the housing 1, and an extension ruler 2 is movably installed inside the housing 1;

[0028] The sleeve 4 is movably mounted inside the rectangular groove 3, a connecting shaft 5 is movably mounted inside the sleeve 4, one end of the connecting shaft 5 is fixedly connected to the surface of the extension ruler 2, and a gear 6 is fixedly mounted on the other end of the connecting shaft 5;

[0029] A fixed plate 7 is fixedly mounted on the surface of the sleeve 4. A movable shaft 8 is fixedly mounted on the fixed plate 7. A gear 2 9 is movably mounted on one end of the movable shaft 8. The gear 2 9 is in meshing state with the gear 1 6. A circular groove 10 is provided on the surface of the gear 2 9 and penetrates the gear 2 9.

[0030] A bracket 11, the bracket 11 is fixedly mounted on the bottom of the fixing plate 7;

[0031] A limiting roller 12, which is movably mounted inside the bracket 11 and extends into the circular groove 10;

[0032] When in use, the extension ruler 2 is pulled out from the left side of the housing 1. When the angle of the extension ruler 2 needs to be adjusted, the user rotates the gear 2 9, and the gear 1 6 meshing with the gear 2 9 also rotates at the same time, and the extension ruler 2 also rotates synchronously. After adjusting to a suitable angle, the user inserts the limiting roller 12 into the inside of the bracket 11 and pushes it forward to the inside of the circular groove 10 to form a buckle;

[0033] Turning gear 2 9 causes gear 1 6 to rotate, and the extension ruler 2 also rotates synchronously. After adjusting to a suitable position, the gear 2 9 is fixed using the limiting roller 12. Compared with the traditional device, this device can adapt to different measurement needs by adjusting the angle of the extension ruler 2. Whether it is a horizontal angle or a vertical angle, it can be measured by adjusting the angle. This flexibility makes the measurement work more convenient and efficient, and by accurately adjusting the angle of the extension ruler 2, a more accurate measurement result can be obtained. In civil engineering, accurate angle measurement is crucial for determining the position of a point, the elevation, and the calculation of the inclined distance.

[0034] The top of the housing 1 is provided with a limiting groove 13, and a transverse groove 14 is provided inside the limiting groove 13;

[0035] A movable block 15, the movable block 15 is movably installed inside the limiting groove 13;

[0036] Limit blocks 16, which are fixedly mounted at both ends of the movable block 15, and the two limit blocks 16 are movably mounted inside the transverse groove 14;

[0037] An angle ruler 17, which is fixedly mounted on the top of the movable block 15;

[0038] When in use, the user pushes the angle ruler 17, and the movable block 15 at the bottom of the angle ruler 17 slides inside the limit groove 13, and the limit blocks 16 on both sides of the movable block 15 slide inside the transverse groove 14 at the same time. After sliding to a suitable distance, it can be used together with the extension ruler 2 to measure more accurately;

[0039] Pushing the angle ruler 17 causes the movable block 15 to slide inside the limit groove 13 and the limit block 16 to slide inside the transverse groove 14. Compared with the traditional device, this device can be suitable for measuring extension rulers 2 of different lengths through the flexible movement of the angle ruler 17, and the accuracy of measurement when the angle ruler 17 is used on the extension ruler 2 is better, thereby avoiding errors.

[0040] A rectangular cavity 18 is formed inside the housing 1, and an outlet slot 21 is formed on the right side surface of the housing 1;

[0041] A reel 19, which is fixedly mounted inside the rectangular cavity 18, a measuring tape 20 is provided on the surface of the rectangular cavity 18 and extends to the outside of the housing 1 through an outlet slot 21;

[0042] By providing the outlet slot 21 inside the rectangular cavity 18, the integration of the measuring tape is achieved, which makes it more convenient to use the measuring tape 20 without having to carry a single tool, thereby improving efficiency and reducing burden.

[0043] The housing 1 is made of plastic, the extension ruler 2 is made of aluminum alloy, and the limit roller 12 is made of stainless steel.

[0044] The shell 1 is made entirely of plastic, which has a light weight and good wear resistance, and is relatively cheap. The extension ruler 2 is made entirely of aluminum alloy, which has the advantages of light weight, high strength, and not easy to deform. The limiting roller 12 is made of stainless steel, which has high strength and hardness, can withstand large loads, and is not easy to deform.

[0045] Among them, a damping layer is arranged on the inner wall of the rectangular groove 3, and the inner diameter value of the transverse groove 14 is equal to the outer diameter value of the limit block 16;

[0046] A damping layer is provided on the inner wall of the rectangular groove 3. By providing the damping layer on the inner wall of the rectangular groove 3, the noise generated by the structure due to vibration can be effectively reduced. By reducing the transfer of vibration energy, the generation and propagation of noise can be reduced, the acoustic performance of the structure can be improved, and the damage and destruction of the structure caused by vibration and fatigue can be reduced, thereby extending the service life of the structure. By making the inner diameter value of the transverse groove 14 equal to the outer diameter value of the limit block 16, the effect of the limit block 16 when sliding inside the transverse groove 14 is better.

[0047] The working principle and use process of this utility model:

[0048] When in use, the extension ruler 2 is pulled out from the left side of the housing 1. When the angle of the extension ruler 2 needs to be adjusted, the user rotates gear 2 9, and gear 1 6 meshing with gear 2 9 also rotates at the same time, and the extension ruler 2 also rotates synchronously. After adjusting to a suitable angle, the user inserts the limiting roller 12 into the interior of the bracket 11 and pushes it forward to the interior of the circular groove 10 to form a buckle.

[0049] When in use, the user pushes the angle ruler 17, and the movable block 15 at the bottom of the angle ruler 17 slides inside the limit groove 13, and the limit blocks 16 on both sides of the movable block 15 slide inside the transverse groove 14 at the same time. After sliding to a suitable distance, it can be used together with the extension ruler 2 for more accurate measurement.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring ruler for civil engineering, comprising a housing (1), characterized in that: A rectangular groove (3) is provided on the front of the housing (1), and an extension ruler (2) is movably installed inside the housing (1); A sleeve (4), the sleeve (4) being movably mounted inside the rectangular groove (3), a connecting shaft (5) being movably mounted inside the sleeve (4), one end of the connecting shaft (5) being fixedly connected to the surface of the extension ruler (2), and a gear 1 (6) being fixedly mounted on the other end of the connecting shaft (5); A fixed plate (7), the fixed plate (7) is fixedly mounted on the surface of the sleeve (4), a movable shaft (8) is fixedly mounted on the fixed plate (7), a gear 2 (9) is movably mounted on one end of the movable shaft (8), the gear 2 (9) is in meshing state with the gear 1 (6), a circular groove (10) is provided on the surface of the gear 2 (9) and penetrates the gear 2 (9); A bracket (11), wherein the bracket (11) is fixedly mounted on the bottom of the fixing plate (7); A limiting roller (12), wherein the limiting roller (12) is movably mounted inside the bracket (11) and extends into the inside of the circular groove (10).

2. A civil engineering measuring ruler according to claim 1, characterized in that: A limiting groove (13) is provided on the top of the housing (1), and a transverse groove (14) is provided inside the limiting groove (13); A movable block (15), wherein the movable block (15) is movably mounted inside the limiting groove (13); Limit blocks (16), the limit blocks (16) are fixedly mounted on both ends of the movable block (15), and the two limit blocks (16) are movably mounted inside the transverse groove (14); An angle ruler (17), wherein the angle ruler (17) is fixedly mounted on the top of the movable block (15).

3. A civil engineering measuring ruler according to claim 1, characterized in that: A rectangular cavity (18) is provided inside the shell (1), and an outlet groove (21) is provided on the right side surface of the shell (1); A reel (19) is fixedly mounted inside the rectangular cavity (18); a measuring tape (20) is provided on the surface of the rectangular cavity (18) and extends to the outside of the housing (1) through an outlet slot (21).

4. A civil engineering measuring ruler according to claim 1, characterized in that: The shell (1) is made entirely of plastic, the extension ruler (2) is made entirely of aluminum alloy, and the limiting roller (12) is made of stainless steel.

5. A civil engineering measuring ruler according to claim 1, characterized in that: A damping layer is provided on the inner wall of the rectangular groove (3), and the inner diameter value of the transverse groove (14) and the outer diameter value of the limit block (16) are equal in size.

Images