Rapid measuring device for arc-shaped structure

Abstract

The utility model relates to a rapid measuring device for an arc-shaped structure. The rapid measuring device for the arc-shaped structure comprises a main sleeve and two size sleeves, the size sleeves are symmetrically arranged at two ends of the main sleeve, and the top surface is provided with a size line; the size sleeve is tightly inserted into the main sleeve; the front side surface of the outer end of the size sleeve horizontally extends forwards to form a measuring leg; the measuring support legs on the two size sleeves are equal in length; the main sleeve is provided with a forward laser ranging device; laser emitted by the laser ranging device is right above the midpoint of the main sleeve; a level bubble is arranged in the middle of the main sleeve. The utility model provides a local node measuring device, which can quickly measure the radian of an arc-shaped structure / arc-shaped template, is particularly suitable for measuring the radian of a local node, and can be used as supplementary measurement in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete construction detection, in particular to an arc structure rapid measuring device. Background Art

[0002] Many concrete components are designed to be arc-shaped structures; the surface of the arc-shaped structure is smooth, beautiful and has a certain structural strength. For example, the wall of a shallow circular silo is an integrated arc-shaped structure cast using slipform engineering technology. Compared with conventional concrete components, the template used for casting the arc-shaped structure must not only ensure sufficient strength, rigidity, and flat surface, but also ensure a certain curvature. Taking the wall of a shallow circular silo as an example, its casting requires a large number of arc-shaped templates to be spliced. After these arc-shaped templates are set vertically, before pouring concrete, the construction personnel need to measure the curvature of each arc-shaped template with high precision. The prior art provides a measurement method: first determine the center of the circle, then set the total station at the center of the circle, and check each template one by one. This method only sets a limited number of lofting points, which can roughly measure the curvature of the arc-shaped template, but it is difficult to measure the local nodes of the arc-shaped template. The curvature of the local nodes of the arc-shaped template still lacks an effective measurement method. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a quick measuring device with an arc structure.

[0004] The technical scheme of the utility model is: a quick measuring device for arc structure comprises a main sleeve and two size sleeves; the size sleeves are symmetrically arranged at both ends of the main sleeve, and size lines are arranged on the top surface; the size sleeves are tightly inserted into the main sleeve; the size sleeves are extended outwardly with equal length relative to the main sleeve, so that the radial surface where the midpoint of the main sleeve is located is also the symmetrical center surface of the size sleeve; the front side surface of the outer end of the size sleeve extends forward horizontally to measure legs for abutting against the arc template / arc structure; the spacing between the outer ends of the measuring legs is also the distance L between the points where the measuring legs abut against the arc template / arc structure; the front side surface of the measuring legs is ... The elongation is h; the measuring legs on the two size casings are of equal length, so that the distance L can be measured through the dimension line; the main casing is equipped with a forward-facing laser distance measuring device; the laser emitted by the laser distance measuring device is just above the midpoint of the main casing, and can measure the distance S from the midpoint of the main casing to the arc template / arc structure; a level bubble is provided in the middle of the main casing, which can be used to help the main casing adjust to a horizontal state, so that the distance L is equivalent to the chord length of the measured local node; the chord height can be calculated by h and S; when the chord length and chord height are known, the radius R of the arc of the local node to be measured can be calculated;

[0005] The basic calculation formula is (chord length / 2) 2 + (radius - chord height) 2 =Radius 2 .

[0006] Preferably, the level bubble includes a horizontally arranged columnar level bubble A and a vertically arranged columnar level bubble B, which are respectively used for horizontal leveling and vertical leveling to ensure that the main sleeve is in a horizontal state as a whole.

[0007] Furthermore, columnar level bubble A and columnar level bubble B are arranged on the center plane of the main sleeve in the front-rear direction to ensure the leveling effect of the main sleeve using columnar level bubble A and columnar level bubble B.

[0008] Furthermore, columnar level bubble A and columnar level bubble B are arranged on both sides of the laser ranging device, which can ensure that the main casing reaches a horizontal state as a whole.

[0009] Preferably, several readings are marked on one side of the dimension line; a △ mark corresponding to the midpoint of the dimension line is provided on the top of the dimension sleeve; the reading indicated by the △ mark is the smallest; in this way, the dimension sleeve has a standard position for extension and retraction; the △ mark indicates the standard position; the chord height dimension at the standard position can be calculated in advance; when the end of the main sleeve is aligned with the △ mark, the chord height dimension can be directly calculated; by comparing the chord height dimension, the arc radius of the measured local node can be known, thereby simplifying the measurement process.

[0010] Furthermore, each size sleeve is provided with two △ marks with opposite vertex angles, so as to facilitate determination of whether the size sleeve is extended or retracted to a standard position relative to the main sleeve.

[0011] Preferably, an indicating sleeve is also sleeved on the end of the main sleeve; the indicating sleeve replaces the main sleeve and cooperates with the dimension line; a threaded hole is provided at the end of the main sleeve; the indicating sleeve is provided with a through hole concentric with the threaded hole; the threaded hole is threadedly cooperated with a fastening nail; the threaded end of the fastening nail passes through the through hole and rests on the end face of the dimension sleeve; on the one hand, the indicating sleeve can be replaced to increase the service life of the entire device, and on the other hand, the fastening nail can lock the telescopic position of the dimension sleeve to ensure the accuracy of the measurement result.

[0012] Furthermore, a disc is coaxially fixed to the outer end of the fastening nail; the side surface of the disc is densely covered with friction ridges; the friction ridges can increase the friction force of the disc itself, making it easier to rotate the fastening nail.

[0013] Preferably, the outer end of the measuring leg is a tapered head, which reduces the contact area with the arc template / arc structure, so that the dimension line can measure the chord length more accurately.

[0014] Preferably, the laser distance measuring device is a laser distance meter, which can directly obtain the distance S from the midpoint of the main casing to the arc template / arc structure.

[0015] Preferably, the laser distance measuring device is a laser distance measuring sensor, which requires a handheld device to read the distance S from the midpoint of the main casing to the arc template / arc structure, but is lighter in weight and is conducive to on-site operation.

[0016] The beneficial effects of the utility model are as follows: the arc-shaped structure rapid measuring device of the utility model has the following advantages:

[0017] (1) The utility model provides a local node measurement device, which can quickly measure the curvature of an arc structure / arc template, and is particularly suitable for measuring the curvature of a local node, and can serve as a supplementary measurement of the prior art;

[0018] (2) The outer end of the measuring leg of the utility model is a conical head, which reduces the contact area with the arc template / arc structure, so that the dimension line can measure the chord length more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional arc structure rapid measurement device of the utility model in the first embodiment Figure 1 ;

[0020] Figure 2 The three-dimensional arc structure rapid measurement device of the utility model in the first embodiment Figure 2 ;

[0021] Figure 3 yes Figure 1 A top partial cross-sectional view of

[0022] Figure 4 is a working principle diagram of the first embodiment;

[0023] Figure 5 It is a three-dimensional diagram of the arc-shaped structure rapid measurement device of the utility model in the second embodiment;

[0024] In the figure: 1. main sleeve, 11. laser distance measuring device, 121. cylindrical level bubble A, 122. cylindrical level bubble B, 13. indicating sleeve, 131. through hole, 14. threaded hole, 15. fastening nail, 151. disc, 152. friction ridge, 2. dimension sleeve, 21. dimension line, 22. measuring leg, 221. conical head, 23. reading, 24. △ mark. DETAILED DESCRIPTION

[0025] Example 1: See Figure 1-4A device for quickly measuring an arc structure comprises a main sleeve 1 and two dimension sleeves 2; the dimension sleeves 2 are symmetrically arranged at both ends of the main sleeve 1, and dimension lines 21 are arranged on the top surface; the dimension sleeves 2 are tightly inserted into the main sleeve 1; the dimension sleeves 2 extend outwardly from the main sleeve 1 by an equal length, so that the radial plane where the midpoint of the main sleeve 1 is located is also the symmetric center plane of the dimension sleeve 2; a measuring leg 22 extends outwardly horizontally from the front side surface of the outer end of the dimension sleeve 2 to abut against the arc template / arc structure; the spacing between the outer ends of the measuring legs 22 is also the distance L between the points where the measuring legs 22 abut against the arc template / arc structure; the measuring legs 22 extend forwardly by an equal length. The length of the two dimension sleeves 2 is h; the measuring legs 22 on the two dimension sleeves 2 are of equal length, so that the distance L can be measured through the dimension line 21; the main sleeve 1 is provided with a forward-facing laser distance measuring device 11; the laser emitted by the laser distance measuring device 11 is just above the midpoint of the main sleeve 1, and can measure the distance S from the midpoint of the main sleeve 1 to the arc template / arc structure; a level bubble is provided in the middle of the main sleeve 1, which can be used to help the main sleeve 1 adjust to a horizontal state, so that the distance L is equivalent to the chord length of the measured local node; the chord height can be calculated by h and S; when the chord length and chord height are both known, the radius R of the arc of the local node to be measured can be calculated;

[0026] The basic calculation formula is (chord length / 2) 2 + (radius - chord height) 2 =Radius 2 .

[0027] Compared with the prior art, the utility model provides a device for measuring local nodes, which can quickly measure the curvature of an arc structure / arc template, is particularly suitable for measuring the curvature of local nodes, and can serve as a supplementary measurement of the prior art.

[0028] The level bubble comprises a horizontally arranged columnar level bubble A 121 and a vertically arranged columnar level bubble B 122, which are respectively used for horizontal leveling and vertical leveling to ensure that the main sleeve 1 is in a horizontal state as a whole.

[0029] The columnar level bubble A 121 and the columnar level bubble B 122 are arranged on the center plane of the main sleeve 1 in the front-to-back direction to ensure the leveling effect of the main sleeve 1 using the columnar level bubble A 121 and the columnar level bubble B 122.

[0030] The columnar level bubble A 121 and the columnar level bubble B 122 are arranged on both sides of the laser distance measuring device 11, which can ensure that the main sleeve 1 as a whole reaches a horizontal state.

[0031] A number of readings 23 are marked on one side of the dimension line 21; a △ mark 24 corresponding to the midpoint of the dimension line 21 is provided on the top of the dimension sleeve 2; the reading 23 indicated by the △ mark 24 is the smallest; in this way, the dimension sleeve 2 has a standard position for extension and contraction; the △ mark 24 indicates the standard position; the chord height dimension at the standard position can be calculated in advance; when the end of the main sleeve 1 is aligned with the △ mark 24, the chord height dimension can be directly calculated; by comparing the chord height dimension, the arc radius of the measured local node can be known, thereby simplifying the measurement process.

[0032] Two △ marks 24 with opposite vertices are provided on each size sleeve 2 to facilitate determination of whether the size sleeve 2 is extended or retracted to a standard position relative to the main sleeve 1 .

[0033] An indicating sleeve 13 is also sleeved on the end of the main sleeve 1; the indicating sleeve 13 replaces the main sleeve 1 and cooperates with the dimension line 21; a threaded hole 14 is provided at the end of the main sleeve 1; the indicating sleeve 13 is provided with a through hole 131 concentric with the threaded hole 14; the threaded hole 14 is threadedly cooperated with a fastening nail 15; the threaded end of the fastening nail 15 passes through the through hole 131 and abuts against the end face of the dimension sleeve 2; on the one hand, the indicating sleeve 13 can be replaced to increase the service life of the entire device, and on the other hand, the fastening nail 15 can lock the telescopic position of the dimension sleeve 2 to ensure the accuracy of the measurement result.

[0034] A disc 151 is coaxially fixed to the outer end of the fastening nail 15 ; the side of the disc 151 is densely covered with friction ridges 152 ; the friction ridges 152 can increase the friction force of the disc 151 itself, making it easier to rotate the fastening nail 15 .

[0035] The outer end of the measuring leg 22 is a conical head 221, which reduces the contact area with the arc template / arc structure, so that the dimension line 21 can measure the chord length more accurately.

[0036] The laser distance measuring device 11 is a laser distance meter, which can directly obtain the distance S from the midpoint of the main casing 1 to the arc template / arc structure.

[0037] The working principle of this embodiment is as follows: two size sleeves 2 extend outwards by the same length at the same time, and the same length of the size sleeves 2 is determined by the size line 21, and the spacing of the measuring legs 22 is obtained. The measuring legs 22 are placed against the arc structure or arc panel; the level of the main sleeve 1 is adjusted, and the main sleeve 1 is determined to be in a horizontal state by the level bubble. The chord height is obtained by the laser distance measuring device 11.

[0038] See also Figure 4 , place the measuring device against the arc template from the inside; measure the length of the leg 22 as h; obtain the spacing L of the measuring legs 22 through the dimension line 21, that is, the chord length; the chord height measured by the laser distance measuring device 11 is S1; the chord height is S1-h, and the arc of the local node where the measuring device is pressed can be obtained by substituting it into the basic formula: R=(S1-h) / 2+L2 / [8*(S1-h)];

[0039] Place the measuring device against the arc-shaped template from the outside; measure the length of the leg 22 as h; obtain the spacing L of the measuring legs 22 through the dimension line 21, that is, the chord length; the chord height measured by the laser distance measuring device 11 is S2; the chord height is h-S2, and the arc of the local node where the measuring device is placed can be obtained by substituting it into the basic formula: R=(h-S2) / 2+L 2 / [8*(h-S2)].

[0040] Example 2: See Figure 5 , Embodiment 2 is basically the same as Embodiment 1, and the similarities are not repeated here. The difference is that the laser distance measuring device 11 is a laser distance measuring sensor, and a handheld device is required to read the distance S from the midpoint of the main casing 1 to the arc template / arc structure, but the weight is lighter, which is conducive to on-site operation.

[0041] In this embodiment, the main sleeve 1 and the size sleeve 2 are both made of aluminum alloy, which can reduce the weight of the measuring device.

Claims

1. A rapid measurement device for arc structures, characterized in that: It includes a main sleeve and two dimension sleeves; the dimension sleeves are symmetrically arranged at both ends of the main sleeve, and dimension lines are arranged on the top surface; the dimension sleeves are tightly inserted into the main sleeve; the measuring legs are horizontally extended forward from the front side surface of the outer end of the dimension sleeve; the measuring legs on the two dimension sleeves are of equal length; the main sleeve is provided with a forward-facing laser distance measuring device; the laser emitted by the laser distance measuring device is just above the midpoint of the main sleeve; a level bubble is arranged in the middle of the main sleeve.

2. The arc structure rapid measurement device according to claim 1, characterized in that: The level bubble comprises a horizontally arranged columnar level bubble A and a vertically arranged columnar level bubble B.

3. The arc structure rapid measurement device according to claim 2, characterized in that: Columnar level bubble A and columnar level bubble B are arranged on both sides of the laser distance measuring device.

4. The arc structure rapid measurement device according to claim 1, characterized in that: Several readings are marked on one side of the dimension line; a △ mark corresponding to the midpoint of the dimension line is provided on the top of the dimension sleeve; the reading indicated by the △ mark is the smallest.

5. The arc structure rapid measurement device according to claim 4, characterized in that: Each size of sleeve is provided with two △ marks with opposite vertices.

6. The arc structure rapid measurement device according to claim 1, characterized in that: An indicating sleeve is also sleeved outside the end of the main sleeve; a threaded hole is provided at the end of the main sleeve; the indicating sleeve is provided with a through hole concentric with the threaded hole; a tightening nail is matched with the threaded hole; the threaded end of the tightening nail passes through the through hole and abuts against the end face of the size sleeve.

7. The arc structure rapid measurement device according to claim 6, characterized in that: A disc is coaxially fixed to the outer end of the fastening nail; and friction ridges are densely distributed on the side surface of the disc.

8. The arc structure rapid measurement device according to claim 1, characterized in that: The outer end of the measuring leg is a tapered head.

9. The arc structure rapid measurement device according to claim 1, characterized in that: The laser distance measuring device is a laser distance meter.

10. The arc structure rapid measurement device according to claim 1, characterized in that: The laser distance measuring device is a laser distance measuring sensor.

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