Angle measuring device for internal and external corner outer wall of building

Abstract

The utility model discloses an angle measuring device for internal and external corner outer walls of a building, and solves the problem of how to conveniently measure internal and external corners on the outer walls of the building. The left end of the first connecting rod (1) is hinged to the left end of the second connecting rod (2) through a first pin shaft (6), the right end of the first connecting rod (1) is hinged to the left end of the fourth connecting rod through a third pin shaft (8), the right end of the second connecting rod (2) is hinged to the left end of the third connecting rod (3) through a second pin shaft (7), and the right end of the fourth connecting rod (4) is hinged to the right end of the third connecting rod (3) through a fourth pin shaft (9). A center connecting rod (5) is hinged to the first pin shaft (6), a long-strip-shaped through hole (10) is formed in the center connecting rod (5), and a fourth pin shaft (9) is movably connected into the long-strip-shaped through hole (10) in an inserted mode. A protractor (11) is connected to the outer side end of the fourth connecting rod (4), and a pointer (12) is arranged on the third connecting rod (3); and the labor efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an angle measuring device, in particular to an angle measuring device for positive and negative angles on the external wall of a building. Background Art

[0002] With the rapid development of construction technology, buildings are not only limited to the most basic living and use functions, but also put forward higher requirements for the beauty and shape of the building structure. More and more unconventional building structures have emerged, which also brings greater challenges to the decoration and renovation projects in the later stages of the building. The decoration and renovation projects of buildings are based on the building structure itself, and the building structure itself often has an allowable construction error range. During the decoration process, the inaccurate measurement of the yin and yang angles of the building often leads to large errors in the cutting of decorative materials, resulting in large-scale rework, which not only wastes decorative materials but also reduces work efficiency. Summary of the invention

[0003] The utility model provides an angle measuring device for the external wall of the positive and negative corners of a building, which solves the technical problem of how to conveniently measure the positive and negative corners on the external wall of the building.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The invention discloses an angle measuring device for the outer wall of the inner and outer corners of a building, comprising a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a protractor, wherein the left end of the first connecting rod and the left end of the second connecting rod are hinged together through a first pin shaft, the right end of the first connecting rod and the left end of the fourth connecting rod are hinged together through a third pin shaft, the right end of the second connecting rod and the left end of the third connecting rod are hinged together through the second pin shaft, and the right end of the fourth connecting rod and the right end of the third connecting rod are hinged together through a fourth pin shaft; a central connecting rod is hinged on the first pin shaft, a long through hole is arranged on the central connecting rod, and a fourth pin shaft is movably inserted in the long through hole; a protractor is connected to the outer end of the fourth connecting rod, and the scale center point of the protractor coincides with the fourth pin shaft; a pointer is arranged on the third connecting rod, and the pointer is arranged on the central axis of the third connecting rod.

[0006] A length scale is arranged on the central connecting rod; a first level is arranged on the third connecting rod, and a second level is arranged on the second connecting rod.

[0007] The V-shaped frame composed of the first connecting rod and the second connecting rod is movably connected to the inner corner a of the upper outer wall of the building.

[0008] The V-shaped frame composed of the extended sections of the third connecting rod and the fourth connecting rod is movably connected to the outer corner b of the upper outer wall of the building.

[0009] The utility model has the advantages of simple structure, convenient and quick operation, high precision, greatly improving labor efficiency and reducing unnecessary rework. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the utility model when measuring the internal angle;

[0012] Figure 3 It is a structural schematic diagram of the utility model when measuring the positive angle. DETAILED DESCRIPTION

[0013] The utility model is described in detail below with reference to the accompanying drawings:

[0014] The invention discloses an angle measuring device for the outer wall of a building's inner and outer corners, comprising a first connecting rod 1, a second connecting rod 2, a third connecting rod 3, a fourth connecting rod 4 and a protractor 11, wherein the left end of the first connecting rod 1 and the left end of the second connecting rod 2 are hinged together through a first pin 6, the right end of the first connecting rod 1 and the left end of the fourth connecting rod are hinged together through a third pin 8, the right end of the second connecting rod 2 and the left end of the third connecting rod 3 are hinged together through a second pin 7, the right end of the fourth connecting rod 4 and the right end of the third connecting rod 3 are hinged together through a fourth pin 9, the first connecting rod 1, the second connecting rod 2, the third connecting rod 3 and the fourth connecting rod 4 form a four-bar linkage, and the fourth connecting rod 4 is relatively long and its extension is relatively long. The long section is arranged on the outside of the fourth pin shaft 9, so that the longer section of the fourth connecting rod 4 forms an external angle b with the third connecting rod 3; a central connecting rod 5 is hinged on the first pin shaft 6, and a long through hole 10 is arranged on the central connecting rod 5. The fourth pin shaft 9 is movably inserted in the long through hole 10, so that the deformation of the four-bar mechanism is carried out along the long through hole 10; a protractor 11 is connected to the outer end of the fourth connecting rod 4, and the scale center point of the protractor 11 coincides with the fourth pin shaft 9. A pointer 12 is arranged on the third connecting rod 3, and the pointer 12 is arranged on the central axis of the third connecting rod 3, so that the angle indicated by the pointer 12 is equal to the angle a formed by the first connecting rod 1 and the second connecting rod 2.

[0015] A length scale 13 is provided on the central connecting rod 5; a first level 14 is provided on the third connecting rod 3, and a second level 15 is provided on the second connecting rod 2, and the accuracy of the measured angle is controlled by the two levels.

[0016] When measuring the internal angle of a component, the front connecting rod 1 of the device is placed at the internal angle of the component to be measured, and the V-shaped frame composed of the first connecting rod 1 and the second connecting rod 2 is movably connected to the internal angle corner 16 of the upper outer wall of the building. The two connecting rods are pressed against both sides of the internal angle of the component to be measured to form an angle a, and the second level 15 on the second connecting rod 2 is adjusted to be centered. Using the principle of equal diagonal angles of a rhombus, the lower scale pointed to by the pointer 12 on the protractor 11 is read, which is the angle value of the internal angle corner a of the upper outer wall of the building.

[0017] When the angle of the measuring component is a positive angle, the V-shaped frame composed of the extended sections of the third connecting rod 3 and the fourth connecting rod 4 is movably connected to the positive angle corner 17 of the upper exterior wall of the building, the first level 14 on the third connecting rod 3 is adjusted to be centered, and the principle of equal diagonals is used to read the upper scale pointed by the pointer 9 on the protractor 11, which is the angle value of the positive angle b of the upper exterior wall of the building.

Claims

1. An angle measuring device for an outer wall of a building, comprising a first connecting rod (1), a second connecting rod (2), a third connecting rod (3), a fourth connecting rod (4) and a protractor (11), wherein the left end of the first connecting rod (1) and the left end of the second connecting rod (2) are hinged together via a first pin (6), the right end of the first connecting rod (1) and the left end of the fourth connecting rod are hinged together via a third pin (8), the right end of the second connecting rod (2) and the left end of the third connecting rod (3) are hinged together via a second pin (7), and the right end of the fourth connecting rod (4) and the right end of the third connecting rod (3) are hinged together via a fourth pin (9); It is characterized in that A central connecting rod (5) is hingedly connected to the first pin shaft (6), a long through hole (10) is provided on the central connecting rod (5), and a fourth pin shaft (9) is movably inserted in the long through hole (10); a protractor (11) is connected to the outer end of the fourth connecting rod (4), and the scale center point of the protractor (11) coincides with the fourth pin shaft (9); a pointer (12) is provided on the third connecting rod (3), and the pointer (12) is arranged on the central axis of the third connecting rod (3).

2. The angle measuring device for the outer wall of the inner and outer corners of a building according to claim 1, It is characterized in that A length scale (13) is arranged on the central connecting rod (5); a first level (14) is arranged on the third connecting rod (3), and a second level (15) is arranged on the second connecting rod (2).

3. The angle measuring device for the external wall of the inner and outer corners of a building according to claim 2, It is characterized in that A V-shaped frame consisting of a first connecting rod (1) and a second connecting rod (2) is movably connected to the inner corner a (16) of the upper outer wall of the building.

4. The angle measuring device for the external wall of the inner and outer corners of a building according to claim 2, It is characterized in that A V-shaped frame consisting of an extended section of the third connecting rod (3) and the fourth connecting rod (4) is movably connected to the inner corner b (17) of the upper outer wall of the building.

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