Portable measuring scale for engineering cost

Abstract

The utility model relates to the field of engineering cost, and discloses a portable measuring scale for engineering cost, which comprises a first short scale, the outer wall of the first short scale is rotatably connected with a second short scale, one end, far away from the first short scale, of the second short scale is rotatably connected with a third short scale, and the first short scale, the second short scale and the third short scale are internally and jointly provided with a shaping assembly. And the shaping assembly comprises a mounting groove, the mounting groove is formed in the inner wall of the second short ruler, a movable groove is formed in the middle of the second short ruler, the inner wall of the movable groove is slidably connected with a movable block, and the inner wall of the movable block penetrates through and is fixedly connected with a control rod. According to the utility model, through the arrangement of the first short ruler, the second short ruler, the third short ruler, the protractor, the hanging rope and the magnetic block, the first short ruler, the second short ruler and the third short ruler can rotate relatively to form a folded shape, so that when measurement is not needed, a worker can store the device well, and the effect of being convenient to carry is achieved.

Description

Technical Field

[0001] This utility model relates to the field of engineering cost estimation, and in particular to a portable measuring ruler for engineering cost estimation. Background Technology

[0002] Construction cost estimation requires measuring tapes to accurately measure various dimensions of the building, determine the spatial layout, calculate material usage, assess construction progress, and conduct quality control to ensure the accuracy and reasonableness of the construction cost.

[0003] Because engineering cost estimation work often needs to be carried out at different construction sites and locations, portable measuring rulers are often required. A search revealed Chinese Patent Publication No. CN219319291U, which discloses a portable measuring ruler for engineering cost estimation. This ruler includes a ruler body comprising a first ruler and a second ruler. A rotating assembly is provided between the first and second rulers, and the second ruler is rotatably connected to the first ruler via the rotating assembly. A mounting groove is provided on the first ruler, and an angle indicating component is installed within the mounting groove. The angle indicating component is used to measure angles on drawings. The above application document provides a convenient measuring ruler for engineering cost estimation personnel to carry.

[0004] While the aforementioned application document achieves the effect of rotating the second ruler for easy carrying, in actual use, there is often a need to measure longer items on construction sites. However, simply rotating the second ruler can only adjust the length of the ruler to half of its original length. Therefore, when measuring longer items, the ruler is still too long even after being adjusted to half its original length, making it difficult to carry. To address this issue, a portable measuring ruler for engineering cost estimation is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a portable measuring ruler for engineering cost estimation, which aims to improve the problem of difficulty in carrying a measuring ruler when measuring long items in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a portable measuring ruler for engineering cost estimation, comprising a short ruler one, a short ruler two rotatably connected to the outer wall of the short ruler one, and a short ruler three rotatably connected to the end of the short ruler two away from the short ruler one. A shaping component is jointly provided inside the short ruler one, short ruler two, and short ruler three. The shaping component includes a mounting groove, which is formed on the inner wall of the short ruler two. A movable groove is formed in the middle of the short ruler two. A moving block is slidably connected to the inner wall of the movable groove. A control rod is passed through and fixedly connected to the inner wall of the moving block. The outer wall of the moving block and the inner wall of the movable groove are elastically connected by a spring. The shaping component also includes a starting rod, whose outer wall is slidably connected to the inner wall of the short ruler three. A screw is rotatably connected to the end of the starting rod away from the short ruler two. The shaping component also includes a slot, which is formed on the inner wall of the short ruler one.

[0007] As a further description of the above technical solution:

[0008] A protractor is fixedly connected to the outer wall of the short ruler, and a hanging rope passes through the inner wall of the protractor.

[0009] As a further description of the above technical solution:

[0010] Magnetic blocks are fixedly connected to the inner walls of the upper and lower sides of short ruler one, short ruler two, and short ruler three.

[0011] As a further description of the above technical solution:

[0012] The movable groove is cylindrical in shape, and the mounting groove is also cylindrical in shape. The movable groove and the mounting groove are coaxial, and the diameter of the movable groove is larger than the diameter of the mounting groove.

[0013] As a further description of the above technical solution:

[0014] The rear surface of the protractor is on the same plane as the rear surface of the short ruler, and the rear end of the short ruler has a recess that matches the shape of the protractor.

[0015] As a further description of the above technical solution:

[0016] The areas of short rulers one, two, and three above the movable slot are set to transparent, and scale lines are set at the rear ends of short rulers one, two, and three.

[0017] As a further description of the above technical solution:

[0018] The diameter of the control rod matches the diameter of the mounting groove, and the length of the control rod is exactly the same as the length of the mounting groove.

[0019] As a further description of the above technical solution:

[0020] The diameter of the movable block matches the diameter of the movable groove, and the length of the movable block is shorter than the length of the movable groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting up short ruler one, short ruler two, short ruler three, protractor, hanging rope, and magnetic block, short ruler one, short ruler two, and short ruler three can rotate relative to each other, thus forming a folded shape. This allows the staff to store the equipment well when measurement is not required, and the hanging rope can be used to hang the equipment for easy carrying.

[0023] 2. In this utility model, the installation groove, movable groove, moving block, control rod, spring, starting rod, screw, and slot are arranged to ensure that when the equipment is in normal use, the starting rod and control rod can be moved to the left to enter the movable groove or slot on the left side. This ensures that the whole composed of short ruler one, short ruler two, and short ruler three is in a horizontal position and can maintain this state, so that the equipment will not be affected by relative rotation when it is in normal use. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall structure after folding in this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the overall structure after it has been unfolded in this utility model;

[0026] Figure 3 This is a three-dimensional cross-sectional view of the short ruler one and short ruler two in this utility model;

[0027] Figure 4 This is a three-dimensional cross-sectional view of the two short rulers in this utility model.

[0028] Figure 5 In this utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of part A in the middle;

[0029] Figure 6 This is a three-dimensional cross-sectional diagram of the two short rulers, short ruler two and short ruler three, in this utility model.

[0030] Legend:

[0031] 1. Short ruler one; 2. Short ruler two; 3. Short ruler three; 4. Protractor; 5. Hanging rope; 6. Shaping component; 7. Magnetic block; 61. Mounting slot; 62. Movable slot; 63. Moving block; 64. Control lever; 65. Spring; 66. Starting lever; 67. Screw; 68. Slot. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a portable measuring ruler for engineering cost estimation, comprising a short ruler 1, a short ruler 2 rotatably connected to the outer wall of the short ruler 1, multiple short rulers 2 of the same length, a short ruler 3 rotatably connected to the end of the short ruler 2 away from the short ruler 1, the short ruler 3 of the same length as the short ruler 1 and the short ruler 2, the area of ​​the short rulers 1, 2, and 3 above the movable groove 62 is set to transparent, and the rear ends of the short rulers 1, 2, and 3 are provided with... The scale lines allow staff to measure lengths. Magnetic blocks 7 are fixedly connected to the inner walls of the upper and lower sides of short rulers 1, 2, and 3. The magnetic poles of the magnetic blocks 7 below short ruler 2, which is adjacent to short ruler 1, are opposite to those of the magnetic blocks 7 below short ruler 1. The magnetic poles of short ruler 2, which is adjacent to short ruler 3, are opposite to those of the magnetic blocks on the same side. That is, the upper magnetic poles of short ruler 3 and the adjacent short ruler 2 are opposite, and the lower magnetic poles of short ruler 3 and the adjacent short ruler 2 are also opposite. The magnetic poles on the same side of any two adjacent short rulers 2 are opposite.

[0034] Reference Figure 3 and Figure 4The short rulers 1, 2, and 3 share a common shaping component 6. The shaping component 6 includes a mounting groove 61, which is formed on the inner wall of the short ruler 2. The mounting grooves 61 inside the short rulers 2 are equidistant from the upper surface of the short ruler 2. A movable groove 62, cylindrical in shape, is formed in the middle of the short ruler 2. The mounting groove 61 is also cylindrical and coaxial with the movable groove 62, with a diameter larger than that of the mounting groove 61. A movable block 63, cylindrical in shape, is slidably connected to the inner wall of the movable groove 62. The movable block 63 has a diameter... The diameter of the movable block 63 matches the diameter of the movable groove 62, and the length of the movable block 63 is shorter than the length of the movable groove 62. By setting the length of the movable block 63, it is ensured that the movable block 63 can move left and right inside the movable groove 62. The inner wall of the movable block 63 is penetrated and fixedly connected to a control rod 64. The diameter of the control rod 64 matches the diameter of the mounting groove 61, and the length of the control rod 64 is exactly the same as the length of the mounting groove 61. The outer wall of the movable block 63 is elastically connected to the inner wall of the movable groove 62 by a spring 65. One end of the spring 65 is fixedly connected to the outer wall of the movable block 63, and the other end of the spring 65 is fixedly connected to the inner wall of the movable groove 62.

[0035] Reference Figure 4 - Figure 6 The shaping component 6 also includes a starting rod 66. When short ruler 1, short ruler 2, and short ruler 3 are in a horizontal state, the starting rod 66 and the control rod 64 are coaxially arranged. The outer wall of the starting rod 66 is slidably connected to the inner wall of short ruler 3. The end of the starting rod 66 away from short ruler 2 is rotatably connected to a screw 67. The shaping component 6 also includes a slot 68. By setting the length of the control rod 64, it is ensured that when the control rod 64 moves, it can move to the inside of the mounting groove 61 inside short ruler 2 on its left side, or enter the inside of the slot 68. The slot 68 is opened on the inner wall of short ruler 1.

[0036] Reference Figure 1 - Figure 3 A protractor 4 is fixedly connected to the outer wall of the short ruler 1. The rear surface of the protractor 4 is on the same plane as the rear surface of the short ruler 1. The rear end of the short ruler 1 has a recess that matches the shape of the protractor 4. A hanging rope 5 passes through the inner wall of the protractor 4. The hanging rope 5 is a non-elastic soft rope.

[0037] Working principle: When in use, the operator unfolds short ruler 1, short ruler 2, and short ruler 3, and then rotates screw 67, causing screw 67 to move to the left during rotation. This causes screw 67 to push the starting rod 66, which then moves to the left and enters the installation groove 61 opened on the inner wall of short ruler 2 on its left side.

[0038] Because the control lever 64 inside the short ruler 2 on the left side of the short ruler 3 3 is pushed by the starting lever 66, the control lever 64 also moves to the left, so that the control lever 64 moves to the left and enters the mounting slot 61 inside the short ruler 2 on the left side, and pushes the control lever 64 inside the short ruler 2 on the left side after entering.

[0039] Similarly, the control lever 64 inside the leftmost short ruler 2 can be pushed into the slot 68, so that short ruler 1, short ruler 2 and short ruler 3 are in a horizontal state. Since each of them has a control lever 64 or a starter lever 66 inside its right side, short ruler 1, short ruler 2 and short ruler 3 cannot rotate relative to each other, thus achieving the effect of normal measurement.

[0040] When the equipment needs to be stored, the operator rotates the screw 67 in the opposite direction. At this time, the starting rod 66 moves to the right under the drive of the screw 67, so that it can no longer squeeze the control rod 64. Therefore, the moving block 63 is reset under the elastic force of the spring 65. Since the moving block 63 can only move to the position of contacting the inner wall of the movable groove 62, the short ruler 1, short ruler 2, and short ruler 3 can be separated at this time. Therefore, the operator can rotate the short ruler 2 and short ruler 3 so that they can be attracted to each other by the magnetic block 7 and suspended in a suitable position by the hanging rope 5, so as to achieve the effect of convenient storage and carrying.

[0041] When staff need to measure an angle, with the equipment in a folded state, they can rotate the short ruler 2 adjacent to short ruler 1 and measure the angle between short ruler 1 and the adjacent short ruler 2 using protractor 4.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A portable measuring ruler for engineering cost estimation, comprising a short ruler (1), characterized in that: The outer wall of the first short ruler (1) is rotatably connected to the second short ruler (2), and the end of the second short ruler (2) away from the first short ruler (1) is rotatably connected to the third short ruler (3). A shaping component (6) is jointly provided inside the first short ruler (1), the second short ruler (2), and the third short ruler (3). The shaping component (6) includes a mounting groove (61), which is located on the inner wall of the second short ruler (2). A movable groove (62) is located in the middle of the second short ruler (2), and a moving block (63) is slidably connected to the inner wall of the movable groove (62). The inner wall of the movable block (63) is connected to a control rod (64) through and fixedly connected. The outer wall of the movable block (63) is elastically connected to the inner wall of the movable groove (62) by a spring (65). The shaping component (6) also includes a starting rod (66). The outer wall of the starting rod (66) is slidably connected to the inner wall of the short ruler three (3). The end of the starting rod (66) away from the short ruler two (2) is rotatably connected to a screw (67). The shaping component (6) also includes a slot (68). The slot (68) is opened on the inner wall of the short ruler one (1).

2. The portable measuring ruler for engineering cost estimation according to claim 1, characterized in that: A protractor (4) is fixedly connected to the outer wall of the short ruler (1), and a hanging rope (5) passes through the inner wall of the protractor (4).

3. The portable measuring ruler for engineering cost estimation according to claim 1, characterized in that: Magnetic blocks (7) are fixedly connected to the inner walls of the upper and lower sides of the short ruler one (1), short ruler two (2) and short ruler three (3).

4. A portable measuring ruler for engineering cost estimation according to claim 1, characterized in that: The movable groove (62) is cylindrical in shape, and the mounting groove (61) is also cylindrical in shape. The movable groove (62) and the mounting groove (61) are coaxial, and the diameter of the movable groove (62) is larger than the diameter of the mounting groove (61).

5. A portable measuring ruler for engineering cost estimation according to claim 2, characterized in that: The rear surface of the protractor (4) is on the same plane as the rear surface of the short ruler (1), and the rear end of the short ruler (1) has a recess that matches the shape of the protractor (4).

6. A portable measuring ruler for engineering cost estimation according to claim 1, characterized in that: The areas of short ruler 1 (1), short ruler 2 (2) and short ruler 3 (3) above the movable groove (62) are set to transparent color, and scale lines are set at the rear ends of short ruler 1 (1), short ruler 2 (2) and short ruler 3 (3).

7. A portable measuring ruler for engineering cost estimation according to claim 1, characterized in that: The diameter of the control rod (64) matches the diameter of the mounting groove (61), and the length of the control rod (64) is exactly the same as the length of the mounting groove (61).

8. A portable measuring ruler for engineering cost estimation according to claim 1, characterized in that: The diameter of the movable block (63) matches the diameter of the movable groove (62), and the length of the movable block (63) is shorter than the length of the movable groove (62).

Images