Adjustable road construction drawing design scale

Abstract

The utility model relates to an adjustable road construction drawing design scale, which comprises a scale body, a mounting seat and an adjusting support piece, a base hole penetrating along the thickness direction of the scale body and a plurality of insertion holes are arranged on the scale body, and the plurality of insertion holes and the base hole are arranged along the length direction of the scale body; the mounting seat is rotationally arranged on the scale body, a through mounting hole is formed in the mounting seat, and the mounting hole axially corresponds to the base hole; the adjusting supporting piece is arranged in the mounting hole and the base hole in a penetrating mode, the adjusting supporting piece is in threaded connection with the mounting hole, one end of the adjusting supporting piece is provided with a conical head supporting part, and the conical head supporting part can protrude out of the bottom of the scale body or retract into the base hole. The design ruler integrates the functions of drawing circles and arc lines, the number of compasses can be reduced, the number of drawing tools needing to be carried by an engineer for outdoor operation can be reduced, meanwhile, the operation that the engineer switches the tools in the drawing process can be reduced, the drawing efficiency is improved, and the diversified requirements of drawing design in the early stage of road construction are better met.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to an adjustable road construction drawing design ruler. Background Technology

[0002] Precise and efficient drafting tools are crucial in the design phase before road construction. Traditionally, design rulers, widely used in this field, have primarily focused on accurate length measurement and straight line drawing. However, in practice, engineers often need to draw circles or arcs, necessitating the use of additional tools like compasses. This is especially problematic for engineers working outdoors, as carrying multiple drafting tools adds to their workload. Given these practical limitations, innovation and expansion of the functionality of existing design rulers are particularly urgent. Utility Model Content

[0003] In view of this, this utility model proposes an adjustable road construction drawing design ruler, aiming to expand the function of existing design rulers and simplify the drawing process and improve portability.

[0004] The technical solution of this utility model is implemented as follows:

[0005] An adjustable road construction drawing design scale includes:

[0006] The scale body has a base hole that extends through its thickness and multiple insertion holes, which are arranged along the length of the scale body.

[0007] Mounting base, the mounting base is rotatably mounted on the scale body, the mounting base is provided with a through mounting hole, the mounting hole is axially corresponding to the base hole;

[0008] An adjusting support is provided, which passes through the mounting hole and the base hole and is threadedly connected to the mounting hole. One end of the adjusting support is provided with a conical support portion, which can protrude from the bottom of the scale body or retract into the base hole.

[0009] As a further optional solution, a fixing cylinder is fixedly provided on the scale body, the fixing cylinder is coaxially corresponding to the base hole, and the inner side of the fixing cylinder is provided with an annular groove; the mounting seat is sleeved in the fixing cylinder, and the outer periphery of the mounting seat is provided with an annular protrusion, the protrusion is engaged in the groove, so as to realize that the mounting seat and the fixing cylinder can rotate relative to each other in the circumferential direction and are relatively fixed in the axial direction.

[0010] As a further optional solution, the adjusting support includes a stud portion, one end of which is provided with the conical head support portion, and the other end of which is provided with a pressure cap. The stud portion is threadedly connected to the mounting hole, and the pressure cap is located above the mounting base.

[0011] As a further optional solution, the pressure cap is provided with a friction pattern on its periphery.

[0012] As a further alternative, the top of the pressure cap is formed with a pressing surface.

[0013] As a further optional solution, a rubber pad is provided on the pressing surface of the top of the pressure cap.

[0014] As a further alternative, the scale body is made of a transparent material.

[0015] The adjustable road construction drawing design scale of this application, compared with the prior art, has at least the following advantages:

[0016] Beneficial effects:

[0017] The design ruler integrates the functions of drawing circles and arcs, which can reduce the need to carry compasses and reduce the number of drawing tools that engineers need to carry when working outdoors. At the same time, it can reduce the number of operations engineers need to switch tools when drawing, improve drafting efficiency, and better meet the diversified needs of road construction drawing design in the early stage. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an adjustable road construction drawing design scale according to an embodiment of the present invention;

[0020] Figure 2 An exploded view of an adjustable road construction drawing design scale according to an embodiment of this utility model;

[0021] Figure 3 A structural diagram of the adjustable support component;

[0022] Figure 4 A cross-sectional schematic diagram of an adjustable road construction drawing design scale according to an embodiment of this utility model;

[0023] In the diagram: 1. Scale body; 11. Base hole; 12. Insertion hole; 13. Fixing cylinder; 131. Groove;

[0024] 2. Mounting base; 21. Mounting hole; 22. Raised strip;

[0025] 3. Adjusting support; 31. Conical head support; 32. Stud; 33. Pressure cap; 331. Friction pattern; 332. Pressing surface; 333. Rubber pad. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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 utility model according to the specific circumstances.

[0029] refer to Figure 1-4An embodiment of this utility model illustrates an adjustable road construction drawing design ruler, including a ruler body 1, a mounting base 2, and an adjusting support 3. The ruler body 1 has a base hole 11 extending along its thickness direction and multiple insertion holes 12, which are arranged along the length direction of the ruler body 1. The mounting base 2 is rotatably mounted on the ruler body 1 and has a through mounting hole 21, which is axially corresponding to the base hole 11. The adjusting support 3 passes through the mounting hole 21 and the base hole 11, and is threadedly connected to the mounting hole 21. One end of the adjusting support 3 has a conical support portion 31, which can protrude from the bottom of the ruler body 1 or retract into the base hole 11.

[0030] Specifically, the mounting base 2 is mounted on the scale body 1, and the mounting base 2 can rotate but cannot move on the scale body 1; while the adjusting support 3 is threadedly connected to the mounting base 2. When the adjusting support 3 rotates relative to the mounting base 2, the adjusting support 3 can move axially along the mounting hole 21. Therefore, the conical support part 31 of the adjusting support 3 can be completely hidden in the base hole 11, or the conical support part 31 can protrude from the bottom of the scale body 1; when it is necessary to use this design to draw circles or arcs, such as Figure 4 As shown, first, slightly protrude the cone support 31 from the bottom of the ruler body 1, press the adjusting support 3 tightly so that the cone support 31 corresponds to the center of the circle or arc, then insert the pen tip into one of the holes 12, move the pen tip, the pen tip will push the ruler body 1 to rotate around the cone support 31 as the center, and at the same time the pen tip can draw a circle or arc.

[0031] The scale body 1 has a scale (not marked in the figure). The position of the base hole 11 can correspond to the zero point of the scale, while the position of the socket 12 corresponds to other scales. The spacing between multiple sockets 12 can be set according to actual needs. For example, a socket 12 can be set every 1 mm.

[0032] In daily use, the adjustment support 3 can be installed on the mounting base 2 continuously, or it can be removed and installed on the mounting base 2 when it is necessary to draw circles or arcs.

[0033] Thus, the design ruler integrates the functions of drawing circles and arcs, which can reduce the need to carry compasses, reduce the number of drawing tools that engineers need to carry for outdoor operations, and reduce the number of operations that engineers need to switch tools when drawing, thereby improving drafting efficiency and better meeting the diversified needs of early-stage road construction drawing design.

[0034] In some embodiments, to facilitate the formation of a rotatable structure between the mounting base 2 and the scale body 1, such as... Figure 2 and Figure 4 As shown, a fixing cylinder 13 is fixedly provided on the scale body 1. The fixing cylinder 13 is coaxially corresponding to the base hole 11. An annular groove 131 is provided on the inner side of the fixing cylinder. The mounting seat 2 is sleeved in the fixing cylinder 13. An annular protrusion 22 is provided on the outer periphery of the mounting seat 2. The protrusion 22 is engaged in the groove 131 so that the mounting seat 2 and the fixing cylinder 13 can rotate relative to each other in the circumferential direction and are relatively fixed in the axial direction.

[0035] When drawing circles or arcs, after pressing the adjusting support 3, the adjusting support 3 and the mounting base 2 are fixed synchronously. The pen tip drives the ruler body 1 to move, and the fixed cylinder 13 rotates relative to the mounting base 2. When it is necessary to adjust the height of the adjusting support 3, first hold the mounting base 2 with one hand to fix it, and then use the other hand to rotate the adjusting support 3 so that the adjusting support 3 can rotate relative to the mounting base 2.

[0036] In some embodiments, such as Figure 3 As shown, the adjusting support 3 includes a stud portion 32, one end of which is provided with the cone head support portion 31, and the other end of which is provided with a pressure cap 33. The stud portion 32 is threadedly connected to the mounting hole 21, and the pressure cap 33 is located above the mounting base 2.

[0037] The pressure cap 33 is located outside the mounting hole 21. The rotation of the support member 3 can be adjusted by rotating the pressure cap 33, and the position of the support member 3 can be adjusted and fixed by pressing the pressure cap 33.

[0038] Preferably, to facilitate rotating the pressure cap 33, such as Figure 3 As shown, the pressure cap 33 has a friction pattern 331 on its periphery.

[0039] In addition, to facilitate pressing the cap 33, such as Figure 3 As shown, a pressing surface 332 is formed on the top of the pressure cap 33. Furthermore, to prevent slippage between the hand and the pressure cap 33, as... Figure 4 As shown, a rubber pad 333 is provided on the pressing surface 332 at the top of the pressure cap 33. The rubber pad 333 may be adhered to the pressing surface 332.

[0040] In some embodiments, the ruler body 1 is made of a transparent material. This allows for quick observation of whether the cone support 31 corresponds to the center position of the circle / arc to be drawn. Of course, in other embodiments, the position of the cone support 31 can be selected even if the ruler body 1 is made of a non-transparent material. For example, the adjustment support 3 is initially disassembled. When a circle / arc needs to be drawn, the base hole 11 of the ruler body 1 is moved to the center position. At this time, it can be observed through the mounting hole 21 and the base hole 11 whether it corresponds to the center. After the position is determined, the adjustment support 3 is then installed onto the mounting base 2, thereby achieving the position selection of the cone support 31.

[0041] In summary, this application provides an adjustable road construction drawing design ruler that integrates the functions of drawing circles and arcs. This reduces the need to carry compasses, decreases the number of drawing tools engineers need to carry for outdoor work, and reduces the need for engineers to switch tools during drawing, thereby improving drafting efficiency and better meeting the diverse needs of early-stage road construction drawing design.

[0042] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable road construction drawing design scale, characterized in that, include: The scale body has a base hole that extends through its thickness and multiple insertion holes, which are arranged along the length of the scale body. Mounting base, the mounting base is rotatably mounted on the scale body, the mounting base is provided with a through mounting hole, the mounting hole is axially corresponding to the base hole; An adjusting support is provided, which passes through the mounting hole and the base hole and is threadedly connected to the mounting hole. One end of the adjusting support is provided with a conical support portion, which can protrude from the bottom of the scale body or retract into the base hole.

2. The adjustable road construction drawing design scale according to claim 1, characterized in that, A fixing cylinder is fixedly provided on the scale body. The fixing cylinder is coaxial with the base hole. An annular groove is provided on the inner side of the fixing cylinder. The mounting seat is sleeved in the fixing cylinder. An annular protrusion is provided on the outer periphery of the mounting seat. The protrusion is engaged in the groove so that the mounting seat and the fixing cylinder can rotate relative to each other in the circumferential direction and are relatively fixed in the axial direction.

3. The adjustable road construction drawing design scale according to claim 2, characterized in that, The adjusting support includes a stud portion, one end of which is provided with the conical head support portion, and the other end of which is provided with a pressure cap. The stud portion is threadedly connected to the mounting hole, and the pressure cap is located above the mounting base.

4. The adjustable road construction drawing design scale according to claim 3, characterized in that, The pressure cap has a friction pattern on its periphery.

5. The adjustable road construction drawing design scale according to claim 3, characterized in that, The top of the pressure cap has a pressing surface.

6. The adjustable road construction drawing design scale according to claim 5, characterized in that, A rubber pad is provided on the pressing surface at the top of the pressure cap.

7. The adjustable road construction drawing design scale according to claim 1, characterized in that, The ruler itself is made of transparent material.

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