Drawing measuring scale for engineering cost

Abstract

The utility model relates to the technical field of measuring tools, and discloses a drawing measuring scale for engineering cost, which comprises a main scale, an outer surface of which is movably connected with an auxiliary scale. And the locking mechanism is arranged at the top end of the auxiliary ruler. According to the drawing measuring ruler for the engineering cost, the straight ruler and the protractor are integrated, in the engineering cost drawing measuring and drawing work, the measuring ruler can be directly used for completing angle measurement and straight line drawing, workers do not need to frequently switch tools, the operation procedures are greatly reduced, and the working efficiency is remarkably improved; time waste and measurement errors caused by tool switching are avoided, the data basis of engineering cost calculation is accurately guaranteed, due to the design of the locking mechanism, it can be guaranteed that the auxiliary ruler stably stays at the required angle position during rotation, angle deviation caused by slight shaking is avoided, and the engineering cost is accurately calculated. The precision problem of a traditional measuring tool in the aspect of angle measurement is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring tool technical field more specifically, the utility model relates to a drawing measuring scale for engineering cost. BACKGROUND

[0002] In engineering cost work, drawing measurement is a very basic and key link. Accurate measurement of various sizes, angles and other information on the drawing plays a decisive role in the accurate calculation of engineering cost. However, the existing drawing measuring scale on the market generally has some significant defects.

[0003] Common ruler has single function, can only complete simple straight line length measurement, once meets the need measurement angle or carries out the size measurement of complex figure, just appears to be unable to meet the need. For example, in the measurement of the length of the wall with angle or the size of the special-shaped structure in the building drawing, the ordinary ruler cannot directly obtain accurate data. Although the protractor can measure the angle, it is independent of the ruler, and in the actual operation process, the staff needs to frequently switch between the ruler and the protractor, which not only greatly wastes time, but also easily leads to measurement error due to complicated operation, and the length of the existing measuring scale is fixed, and the measuring range cannot be flexibly adjusted when facing different sizes of drawings. When measuring large-scale engineering drawings, the fixed length measuring scale needs to be moved to the measuring position several times and the data is accumulated, which not only is troublesome to operate, but also easily introduces more errors in the process of multiple measurement and accumulation, seriously affecting the accuracy of the measurement result and the work efficiency. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a drawing measuring scale for engineering cost to solve the problems in the background art.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a drawing measuring scale for engineering cost, comprising:

[0006] The outer surface of the main ruler is movably connected with a sub ruler;

[0007] A locking mechanism is arranged at the top end of the sub ruler;

[0008] A rotating mechanism is arranged on the outer surface of the main ruler;

[0009] The rotating mechanism comprises a first arc-shaped block, the outer surface of the first arc-shaped block is fixedly connected with the outer surface of the main ruler, the inside of the first arc-shaped block is movably connected with a second arc-shaped block, a circular shaft is movably sleeved in the inside of the first arc-shaped block and the second arc-shaped block, an angle gauge is arranged at the top end of the main ruler, an arc-shaped groove is formed in the angle gauge, and the angle gauge is connected with the main ruler through a screw.

[0010] As a preferred technical scheme of the utility model, the locking mechanism comprises:

[0011] The screw rod is fixedly connected with the top end of the auxiliary ruler, and the outer surface of the screw rod is slidably connected with the inner part of the arc-shaped groove.

[0012] The screw sleeve is internally threadedly connected with the outer surface of the screw rod, and the bottom end of the screw sleeve is fixedly installed with a fixing ring made of rubber.

[0013] As a preferred technical scheme of the utility model, the top end of the main ruler is fixedly installed with a handle, and the inner part of the handle is provided with a rubber lining.

[0014] As a preferred technical scheme of the utility model, the rear end of the top end of the main ruler is fixedly installed with a buckle made of elastic plastic.

[0015] As a preferred technical scheme of the utility model, the outer surface of the main ruler is fixedly installed with a square rod, and the outer surface of the square rod movably sleeves a moving block.

[0016] As a preferred technical scheme of the utility model, the outer surface of the moving block is provided with a clamping groove, and the inner part of the clamping groove movably connects with a fixing block, and the outer surface of the fixing block is fixedly connected with the outer surface of the auxiliary ruler.

[0017] As a preferred technical scheme of the utility model, the rear end of the square rod is fixedly installed with a round block, the front surface of the round block is fixedly installed with a spring, and the front end of the spring is fixedly connected with the outer surface of the moving block.

[0018] As a preferred technical scheme of the utility model, the back surface of the moving block is fixedly installed with a pull ring made of metal.

[0019] Compared with the prior art, the utility model has the beneficial effects as follows:

[0020] 1、the engineering cost drawing measuring ruler integrates the ruler and the protractor, can directly use the measuring ruler to complete angle measurement and straight line drawing in engineering cost drawing measurement and drawing work, greatly reduces operation process, significantly improves work efficiency, avoids time waste and measurement error caused by tool switching, accurately guarantees the data basis of engineering cost calculation, and due to the design of the locking mechanism, can ensure that the auxiliary ruler stably stays at the required angle position when rotating, avoids angle deviation caused by slight shaking, and solves the precision problem of traditional measurement tools in angle measurement.

[0021] 2、The engineering cost is with drawing measuring ruler, can through the vice ruler rotates one hundred and eighty degrees rotation realizes the adjustment of the length of measuring ruler, whether it is small area local drawing, or large area whole engineering drawing, can easily adapt to the measurement demand, need not move the measurement position and data accumulation for many times, effectively expand the measurement range, reduce the measurement error, greatly improve the accuracy and work efficiency of the measurement result.

[0022] 3、The engineering cost is with drawing measuring ruler, since the design of handle, it will be convenient for operator to drive measuring ruler to move, since the design of buckle, it will be convenient for operator to store surveying pen, since the design of round block, moving block and fixed block, it will make that main ruler and vice ruler can keep folding state, can effectively prevent vice ruler from rotating under external force, and then make that measuring ruler has portability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is structure schematic drawing of the utility model;

[0024] Figure 2 It is structure schematic drawing of back view of the utility model;

[0025] Figure 3 It is structure schematic drawing of screw of the utility model;

[0026] Figure 4 It is structure schematic drawing of section of screw of the utility model;

[0027] Figure 5 It is structure schematic drawing of section of pull ring of the utility model;

[0028] Figure 6 It is structure schematic drawing of fixed ring of the utility model;

[0029] Figure 7 It is structure schematic drawing of vice ruler unfolded state of the utility model.

[0030] In the drawing: 1, main ruler; 2, vice ruler; 3, first arc block; 4, second arc block; 5, round shaft; 6, protractor; 7, screw; 8, arc slot; 9, screw; 10, threaded sleeve; 11, fixed ring; 12, handle; 13, buckle; 14, square rod; 15, moving block; 16, clamping groove; 17, fixed block; 18, round block; 19, spring; 20, pull ring. DETAILED DESCRIPTION

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 7 As shown, this utility model provides a drawing measuring ruler for engineering cost estimation, comprising:

[0033] Main scale 1, with secondary scale 2 movably connected to the outer surface of main scale 1;

[0034] A locking mechanism is located at the top of the secondary scale 2;

[0035] A rotating mechanism is located on the outer surface of the main scale 1;

[0036] The rotating mechanism includes a first arc-shaped block 3, the outer surface of which is fixedly connected to the outer surface of the main scale 1, a second arc-shaped block 4 is movably connected inside the first arc-shaped block 3, and a round shaft 5 is movably sleeved inside the first arc-shaped block 3 and the second arc-shaped block 4. A protractor 6 is provided at the top of the main scale 1, and an arc-shaped groove 8 is provided on the protractor 6. The protractor 6 is connected to the main scale 1 by a screw 7.

[0037] Due to the design of the second arc block 4 and the circular shaft 5, the vernier scale 2 can rotate around the joint between the second arc block 4 and the circular shaft 5. During this process, the angle between the vernier scale 2 and the main scale 1 will continuously increase. When the vernier scale 2 coincides with the structural line, the scale of the vernier scale 2 aligned with the protractor 6 is the angle of the structural line. When the vernier scale 2 rotates to be on the same straight line as the main scale 1, the vernier scale 2 will act as an extension of the main scale 1, thereby extending the measuring dimension of the measuring scale so that operators can measure drawings of different sizes.

[0038] The locking mechanisms include:

[0039] Screw 9, the bottom end of screw 9 is fixedly connected to the top end of vernier scale 2, and the outer surface of screw 9 is slidably connected to the inside of arc groove 8;

[0040] The threaded sleeve 10 is threadedly connected to the outer surface of the screw 9. A retaining ring 11 is fixedly installed at the bottom end of the threaded sleeve 10. The retaining ring 11 is made of rubber.

[0041] When the vernier scale 2 rotates, it will drive the screw 9 to rotate along the inside of the arc groove 8. Since the inside of the threaded sleeve 10 is threadedly connected to the screw 9, when the threaded sleeve 10 rotates along the outer surface of the screw 9, it will drive the fixing ring 11 to move downward. When the fixing ring 11 contacts the top of the protractor 6, it will squeeze the protractor 6, thereby blocking the rotation of the vernier scale 2. Since the fixing ring 11 is made of rubber, it has a large friction force, which can ensure the blocking effect on the movement of the vernier scale 2 and prevent the vernier scale 2 from rotating under the action of external force.

[0042] The main scale 1 has a handle 12 fixedly installed at its top, and the handle 12 has a rubber lining inside.

[0043] The design of the handle 12 makes it easy for the operator to move the measuring ruler as a whole. The handle 12 has a rubber lining inside, which provides good anti-slip effect and makes it more comfortable for the operator to hold the handle 12.

[0044] Among them, a buckle 13 is fixedly installed at the rear of the top of the main scale 1. The buckle 13 is made of elastic plastic.

[0045] The design of the clip 13 allows the operator to store the surveying pen inside the clip 13.

[0046] Among them, a square rod 14 is fixedly installed on the outer surface of the main scale 1, and a moving block 15 is movably sleeved on the outer surface of the square rod 14.

[0047] Due to the design of the square rod 14, the movement of the moving block 15 will be limited, so that the moving block 15 can only move back and forth along the outer surface of the square rod 14.

[0048] The outer surface of the moving block 15 is provided with a slot 16, and a fixing block 17 is movably connected inside the slot 16. The outer surface of the fixing block 17 is fixedly connected to the outer surface of the auxiliary ruler 2.

[0049] When the slot 16 contacts the fixed block 17, it will lock the rotation of the auxiliary scale 2, making the measuring scale easy to carry. When the moving block 15 moves backward, the slot 16 will release its contact with the fixed block 17, thereby releasing the locking effect on the auxiliary scale 2.

[0050] Among them, a round block 18 is fixedly installed at the rear end of the square rod 14, and a spring 19 is fixedly installed on the front side of the round block 18. The front end of the spring 19 is fixedly connected to the outer surface of the moving block 15.

[0051] When the moving block 15 moves backward, it will compress the spring 19. Due to the design of the spring 19, it will have a good restoring effect on the movement of the moving block 15.

[0052] The back of the moving block 15 is fixedly equipped with a pull ring 20, which is made of metal.

[0053] The design of the pull ring 20 makes it easy for the operator to move the moving block 15.

[0054] Working principle and usage process of this utility model:

[0055] When the operator needs to measure the structure with dimensions on the drawing, the operator first pulls the pull ring 20, causing the pull ring 20 to drive the moving block 15 to move backward along the outer surface of the square rod 14. At this time, the spring 19 is compressed by the moving block 15. When the inside of the slot 16 releases contact with the fixed block 17 during the backward movement, the operator can then move the auxiliary scale 2. The auxiliary scale 2 will then drive the second arc-shaped block 4 to rotate around the circular axis 5. At the same time, the screw 9 will rotate around the circular axis 5 along the inside of the arc-shaped groove 8 under the drive of the auxiliary scale 2. During this process, the angle between the auxiliary scale 2 and the main scale 1 will continuously increase. When the auxiliary scale 2 coincides with the structure line to be measured during rotation, the operator stops moving the auxiliary scale 2. At this time, the scale of the auxiliary scale 2 aligned with the protractor 6 is the line to be measured. When the operator discovers an error in the angle of the drawing and needs to make corrections, the operator screws the threaded sleeve 10, causing it to rotate along the outer surface of the screw 9. Since the inside of the threaded sleeve 10 is threadedly connected to the outer surface of the screw 9, it will move downwards simultaneously as it rotates along the outer surface of the screw 9. During this process, the fixing ring 11 will move downwards under the influence of the threaded sleeve 10. When the fixing ring 11 contacts the top of the protractor 6 during its downward movement, it will squeeze it, thereby blocking the rotation of the vernier scale 2. Furthermore, since the fixing ring 11 is made of rubber, it has a large frictional force, which locks the vernier scale 2, preventing it from rotating due to external forces during drawing and ensuring the accuracy of the drawing.

[0056] When the auxiliary ruler 2 is fully extended and aligned with the main ruler 1, it acts as an extension of the main ruler 1, increasing the overall measuring length and allowing for measurements of larger drawings. The handle 12 facilitates easy movement of the measuring ruler. After completing the drawing, the operator places the measuring pen on the top of the two clips 13 and presses it down. The pen then locks into place within the clips 13. The clips 13 also facilitate easy storage of the pen. The operator pulls the pull ring 20, causing the moving block 15 to move backward. Then, the operator rotates the auxiliary scale 2 in the opposite direction, causing the auxiliary scale 2 to return to its folded state. When the fixing block 17 is aligned with the inside of the slot 16, the operator releases the pull ring 20. Due to the elastic force of the spring 19, the moving block 15 will move forward under the action of the spring 19 to reset. Subsequently, the inside of the slot 16 will re-contact the fixing block 17. At this time, the slot 16 will lock the rotation of the auxiliary scale 2 as a whole through the fixing block 17, thereby preventing the auxiliary scale 2 from rotating under the action of external force, and making the measuring scale easy to carry.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring ruler for engineering cost estimates, characterized in that, Including: Main scale (1), with a secondary scale (2) movably connected to the outer surface of the main scale (1); A locking mechanism is provided at the top of the secondary ruler (2); A rotating mechanism is disposed on the outer surface of the main scale (1); The rotating mechanism includes a first arc block (3), the outer surface of which is fixedly connected to the outer surface of the main ruler (1), a second arc block (4) is movably connected inside the first arc block (3), and a round shaft (5) is movably sleeved inside the first arc block (3) and the second arc block (4). A protractor (6) is provided at the top of the main ruler (1), and an arc groove (8) is provided on the protractor (6). The protractor (6) is connected to the main ruler (1) by a screw (7).

2. The engineering cost drawing measuring ruler according to claim 1, characterized in that: The locking mechanism includes: The bottom end of the screw (9) is fixedly connected to the top end of the auxiliary ruler (2), and the outer surface of the screw (9) is slidably connected to the inside of the arc groove (8); A threaded sleeve (10) is threadedly connected to the outer surface of the screw (9). A fixing ring (11) is fixedly installed at the bottom end of the threaded sleeve (10). The fixing ring (11) is made of rubber.

3. A drawing measuring ruler for engineering cost estimation according to claim 1, characterized in that: A handle (12) is fixedly installed at the top of the main ruler (1), and the handle (12) is provided with a rubber lining.

4. A drawing measuring ruler for engineering cost estimation according to claim 1, characterized in that: A buckle (13) is fixedly installed at the rear of the top of the main ruler (1), and the buckle (13) is made of elastic plastic.

5. A drawing measuring ruler for engineering cost estimation according to claim 1, characterized in that: A square rod (14) is fixedly installed on the outer surface of the main ruler (1), and a moving block (15) is movably sleeved on the outer surface of the square rod (14).

6. A drawing measuring ruler for engineering cost estimation according to claim 5, characterized in that: The outer surface of the moving block (15) is provided with a slot (16), and a fixed block (17) is movably connected inside the slot (16). The outer surface of the fixed block (17) is fixedly connected to the outer surface of the auxiliary ruler (2).

7. A drawing measuring ruler for engineering cost estimation according to claim 5, characterized in that: A round block (18) is fixedly installed at the rear end of the square rod (14), and a spring (19) is fixedly installed on the front side of the round block (18). The front end of the spring (19) is fixedly connected to the outer surface of the moving block (15).

8. A drawing measuring ruler for engineering cost estimation according to claim 5, characterized in that: A pull ring (20) is fixedly installed on the back of the moving block (15), and the pull ring (20) is made of metal.

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