A surveying rod for civil engineering

Abstract

The utility model discloses a surveying scale for civil engineering, including fixed scale, the back of fixed scale is provided with L type slot, two symmetrical distribution's extension ruler is slidably connected in L type slot, and two extension rulers all are provided with containing groove, and the containing groove of two extension rulers is all through the damping pivot rotation connection with the rotation scale of the remote end each other, and the rotation scale is provided with L type mouth one end away from the damping pivot, the utility model discloses can be used for measuring distance, right angle, levelness and perpendicularity, and the utilization rate of surveying scale is greatly improved, and the cost is saved, and simple operation, and the practicality is strong.

Description

Technical Field

[0001] This utility model belongs to the field of measuring ruler technology, and in particular relates to a measuring ruler for civil engineering. Background Technology

[0002] Civil engineering is a general term for the science and technology of constructing various land engineering facilities. It refers not only to the materials and equipment used and the technical activities such as surveying, design, construction, maintenance and repair, but also to the objects of engineering construction. Various measuring devices are commonly used in civil engineering, among which measuring rulers are used extremely frequently. During the construction of civil engineering projects, measuring rulers are required for measurement.

[0003] Currently available measuring rulers have limited functionality, requiring users to purchase multiple rulers for measurement, which increases costs and makes them inconvenient to carry, resulting in poor practicality. Utility Model Content

[0004] The purpose of this utility model is to provide a measuring ruler for civil engineering to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A measuring ruler for civil engineering includes a fixed ruler. An L-shaped groove is provided on the back of the fixed ruler. Two symmetrically distributed extension rulers are slidably connected in the L-shaped groove. Each of the two extension rulers is provided with a receiving groove. A rotating ruler is rotatably connected to one end of each extension ruler away from the other through a damping shaft. An L-shaped opening is provided at the end of the rotating ruler away from the damping shaft. Locking structures for locking and fixing the extension rulers are provided on the upper surfaces of both ends of the fixed ruler.

[0006] Preferably, the fixed ruler has an L-shaped structure, and the back of the extended ruler is flush with the back of the fixed ruler, and the sum of the lengths of the two extended rulers is equal to the length of the fixed ruler.

[0007] Preferably, trapezoidal grooves are provided in the middle of the two inner walls of the L-shaped groove along its length, and trapezoidal blocks are provided on the side wall of the extension ruler away from the damping axis, which correspond one-to-one with the trapezoidal grooves, and the trapezoidal blocks are slidably connected to the trapezoidal grooves.

[0008] Preferably, the trapezoidal groove is a closed structure at both ends.

[0009] Preferably, the locking structure includes a stud, a knob is provided at the top of the stud, threaded grooves are provided on the upper surfaces of both ends of the fixed ruler, the stud is threadedly connected to the threaded grooves, and the bottom of the knob is in contact with the upper surfaces of the fixed ruler and the extension ruler.

[0010] Preferably, the receiving groove has an open end and a closed end structure, and the size of the rotating ruler matches the size of the receiving groove.

[0011] Preferably, both the fixed ruler and the rotating ruler are provided with two horizontal bubble gauges on their front sides, and the two horizontal bubble gauges are vertically distributed.

[0012] The measuring ruler for civil engineering of this utility model has the following advantages:

[0013] 1. This utility model can be used to measure distance, right angle, levelness and perpendicularity. It has multiple functions, greatly improves the utilization rate of measuring ruler, saves costs, and is simple to operate and highly practical.

[0014] 2. This utility model sets the sum of the lengths of the two extension rulers to be equal to the length of the fixed ruler, so that both extension rulers can be retracted into the fixed ruler, shortening the overall length of the measuring ruler, making it easy to carry. Furthermore, the length of the entire measuring ruler can be adjusted by pulling out the extension rulers, which is highly flexible. The overall volume is greatly reduced by storing the rotating ruler in the receiving slot.

[0015] 3. By tightening the knob, the stud moves the knob downward, causing the bottom of the knob to make tight contact with the upper surface of the fixed ruler and the extension ruler, thereby locking and fixing the extension ruler and effectively preventing the extension ruler from loosening in the L-shaped groove. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective;

[0019] Figure 3 This is a schematic diagram of the fixed ruler structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the extension ruler and the rotating ruler in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure for measuring verticality according to this utility model.

[0022] The markings in the diagram are as follows: 1. Fixed ruler; 2. Extended ruler; 3. Rotating ruler; 4. Level bubble meter; 5. Locking structure; 6. L-shaped groove; 7. Damping shaft; 8. Receiving groove; 9. Trapezoidal groove; 10. Threaded groove; 11. Stud; 12. Knob; 13. Trapezoidal block; 14. L-shaped opening. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0028] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a measuring ruler for civil engineering.

[0029] like Figure 1-5 As shown, this utility model discloses a measuring ruler for civil engineering, comprising a fixed ruler 1. An L-shaped groove 6 is provided on the back of the fixed ruler 1, within which two symmetrically distributed extension rulers 2 are slidably connected. The fixed ruler 1 has an L-shaped structure, and the backs of the extension rulers 2 are flush with the back of the fixed ruler 1. The sum of the lengths of the two extension rulers 2 is equal to the length of the fixed ruler 1. By setting the backs of the extension rulers 2 and the fixed ruler 1 to be flush, both the backs of the extension rulers 2 and the fixed ruler 1 can contact the surface of the object being measured during measurement, ensuring measurement accuracy. Furthermore, by setting the sum of the lengths of the two extension rulers 2 to be equal to the length of the fixed ruler 1, both extension rulers 2 can be retracted into the fixed ruler 1, shortening the overall length of the measuring ruler, making it easy to carry. Moreover, the length of the entire measuring ruler can be adjusted by pulling out the extension rulers 2, providing high flexibility. Trapezoidal grooves 9 are provided along the length of the two inner walls of the L-shaped groove 6. Trapezoidal blocks 13, corresponding to the trapezoidal grooves 9, are provided on the side wall of the extension ruler 2 away from the damping pivot 7. The trapezoidal blocks 13 are slidably connected to the trapezoidal grooves 9. The cooperation between the trapezoidal blocks 13 and the trapezoidal grooves 9 limits the movement between the extension ruler 2 and the fixed ruler 1, allowing the extension ruler 2 to move stably within the L-shaped groove 6. The trapezoidal grooves 9 are closed at both ends, effectively preventing the extension ruler 2 from detaching from the fixed ruler 1.

[0030] Both extended rulers 2 are provided with receiving grooves 8. A rotating ruler 3 is rotatably connected to each of the receiving grooves 8 at opposite ends via a damping shaft 7. The end of the rotating ruler 3 away from the damping shaft 7 has an L-shaped opening 14. The receiving groove 8 has an open-end and closed-end structure. The dimensions of the rotating ruler 3 match the dimensions of the receiving groove 8. By designing the receiving groove 8 as an open-end and closed-end structure, when the rotating ruler 3 is rotated about the axis of the damping shaft 7 to a certain position... Figure 4When shown in the diagram, it indicates that the rotating ruler 3 is perpendicular to the extended ruler 2. The accuracy of the right angle can be measured by the coordination between the extended ruler 2 and the rotating ruler 3. When it is necessary to measure perpendicularity, the measuring ruler can be adjusted to... Figure 5 As shown, a plumb bob is hung inside the L-shaped opening 14 of the upper rotating ruler 3, and the measuring ruler is placed at the measurement position. Due to gravity, the plumb bob is in a vertical state. During the operation, it is necessary to ensure that the upper and lower rotating rulers 3 are in close contact with the object being measured and that the rotating rulers 3 are in a horizontal state. Use a tape measure to measure the distance between the fixed ruler 1 and the plumb bob in a straight line. This will determine whether the object being measured is in a vertical state. When it is not necessary to measure right angles, the rotating ruler 3 can be stored in the receiving groove 8, which greatly reduces the overall volume.

[0031] Both ends of the fixed ruler 1 are provided with locking structures 5 for locking and fixing the extension ruler 2. The locking structure 5 includes a stud 11, with a knob 12 at the top of the stud 11. Both ends of the fixed ruler 1 are provided with threaded grooves 10, and the stud 11 is threadedly connected to the threaded grooves 10. The bottom of the knob 12 is in contact with the upper surfaces of the fixed ruler 1 and the extension ruler 2. By tightening the knob 12, the stud 11 moves the knob 12 downward, so that the bottom of the knob 12 is in close contact with the upper surfaces of the fixed ruler 1 and the extension ruler 2, thereby locking and fixing the extension ruler 2. This can effectively prevent the extension ruler 2 from loosening in the L-shaped groove 6. When it is necessary to adjust the length of the entire measuring ruler, the knob 12 is loosened to separate the knob 12 from the upper surfaces of the fixed ruler 1 and the extension ruler 2, and the extension ruler 2 can be pulled out from the L-shaped groove 6. After adjusting the length of the measuring ruler, the knob 12 is tightened. The operation is simple and convenient.

[0032] Two horizontal bubble gauges 4 are provided on the front of both the fixed ruler 1 and the rotating ruler 3, and the two horizontal bubble gauges 4 are vertically distributed. By providing two vertically distributed horizontal bubble gauges 4 on the front of both the fixed ruler 1 and the rotating ruler 3, it can be ensured that the measuring ruler is in a horizontal or vertical state during the measurement process, thus ensuring the accuracy of the measurement.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A measuring ruler for civil engineering, characterized in that: The device includes a fixed ruler (1), which has an L-shaped groove (6) on its back. Two symmetrically distributed extension rulers (2) are slidably connected in the L-shaped groove (6), and each of the two extension rulers (2) has a receiving groove (8). The two extension rulers (2) are rotatably connected to each other at one end of their receiving grooves (8) via a damping shaft (7). The end of the rotating ruler (3) away from the damping shaft (7) has an L-shaped opening (14). The upper surfaces of both ends of the fixed ruler (1) are provided with locking structures (5) for locking and fixing the extension rulers (2).

2. A measuring ruler for civil engineering according to claim 1, characterized in that: The fixed ruler (1) has an L-shaped structure, and the back of the extended ruler (2) is flush with the back of the fixed ruler (1). The sum of the lengths of the two extended rulers (2) is equal to the length of the fixed ruler (1).

3. A measuring ruler for civil engineering according to claim 1, characterized in that: The two inner walls of the L-shaped groove (6) are provided with trapezoidal grooves (9) along their length direction, and the side wall of the extension ruler (2) away from the damping shaft (7) is provided with trapezoidal blocks (13) that correspond one-to-one with the trapezoidal grooves (9). The trapezoidal blocks (13) are slidably connected to the trapezoidal grooves (9).

4. A measuring ruler for civil engineering according to claim 3, characterized in that: The trapezoidal groove (9) is a closed structure at both ends.

5. A measuring ruler for civil engineering according to claim 1, characterized in that: The locking structure (5) includes a stud (11), a knob (12) is provided at the top of the stud (11), and threaded grooves (10) are provided on the upper surfaces of both ends of the fixed ruler (1). The stud (11) is threadedly connected to the threaded grooves (10), and the bottom of the knob (12) is in contact with the upper surfaces of the fixed ruler (1) and the extension ruler (2).

6. A measuring ruler for civil engineering according to claim 1, characterized in that: The receiving groove (8) is an open-end and closed-end structure, and the size of the rotating ruler (3) matches the size of the receiving groove (8).

7. A measuring ruler for civil engineering according to claim 1, characterized in that: Two horizontal bubble gauges (4) are provided on the front of both the fixed ruler (1) and the rotating ruler (3), and the two horizontal bubble gauges (4) are vertically distributed.

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