Corner ruler for wall corner bridge manufacturing

Abstract

A corner ruler for manufacturing a wall corner bridge belongs to the field of bridge manufacturing tools and comprises a plate right triangle and a guiding rule, the plate right triangle corner ruler comprises a short right-angle side and a long right-angle side, the short right-angle side is fixed on the guiding rule, the guiding rule is thicker than the plate of the right triangle, and the upper surface and the lower surface of the guiding rule are higher than the upper surface and the lower surface of the plate. At least the side, facing the right triangle plate, of the guiding rule is parallel to the short right-angle side, and the large acute angle opposite to the long right-angle side is 68.25 degrees + / -0.25 degrees. According to the utility model, accurate butt joint of the corner bridge and linear bridges on two sides of a wall corner can be ensured, and the linear bridges on two sides of the wall corner are parallel to a wall body; it is guaranteed that the cable is laid in the corner bridge in an arc-shaped bending mode at the corner, cable wires are prevented from being damaged, and by means of the corner ruler, construction errors can be reduced, calculation can be reduced, and construction efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a corner ruler, in particular to a corner ruler for making a wall corner bridge, and belongs to the field of bridge manufacturing tools. Background Art

[0002] In the industrial field, a large number of equipment are required to form production lines. The power supply of multiple devices needs to be transmitted by cables, and data cables are used to transmit information. In order to centralize and standardize the cable routing, arrange various cables neatly and orderly, avoid cable entanglement, facilitate staff identification, maintenance and repair, and protect cables from damage caused by mechanical, corrosive liquids or gases, cable bridges can play a certain role in isolation. Cable bridges can prevent short circuits and fires, and can also provide shielding.

[0003] In addition, the wires leading to electrical equipment such as electrical cabinets need to be organized in electrical trough boxes. Whether it is a bridge or an electrical trough box, at the corners of a factory or room, in order to enable the cables or wires to turn smoothly and prevent the cables and wires from being damaged at the corners, a bridge or cable duct with an angle greater than 90 degrees is generally made on site to smoothly connect with the corners in both directions. In the process of making bridges or cable duct boxes at corners, how to make the corner bridges or cable ducts smoothly connect with the straight bridges on both sides is a difficult problem in the on-site construction process. It is necessary to mark the straight bridge profiles in advance, retain the steel on one side of the corner, connect them together by bending, and make them into a corner bridge through simple spot welding. It can also be accurately connected with the straight cable bridges on both sides of the corner. However, in actual production, how to accurately mark the lines is a topic that exists in the actual operation process. Summary of the Invention

[0004] Aiming at the problem that the on-site production of the corner bridge at the corner cannot accurately connect with the straight bridges on both sides of the corner, the utility model provides a corner ruler for the production of the corner bridge, the purpose of which is to ensure that the corner bridge is accurately connected with the straight bridges on both sides of the corner, to ensure that the straight bridges on both sides of the corner are parallel to the wall, to ensure that the cables are laid in the corner bridge along the arc at the corner, to prevent the cables and wires from being damaged. The use of this corner ruler can reduce construction errors, reduce calculations, and improve construction efficiency.

[0005] The technical solution of the utility model is: a corner ruler made of a wall corner bridge, the corner ruler comprising a right-angled triangle plate and a straightedge, the right-angled triangle plate of the corner ruler comprising a short right-angled side and a long right-angled side, the short right-angled side being fixed to the straightedge, the straightedge having a thickness greater than that of the right-angled triangle plate, and the upper and lower surfaces of the straightedge being higher than the upper and lower surfaces of the plate, at least the side of the straightedge facing the right-angled triangle plate being parallel to the short right-angled side, and the large acute angle relative to the long right-angled side being 67.5°±0.5°;

[0006] Furthermore, the ruler is fixed to the plate, a groove is provided in the middle of the length direction of the ruler, a short right-angled side portion is embedded and fixed in the groove, and the length of the ruler is less than the length of the short right-angled side;

[0007] Furthermore, the ruler comprises an upper panel and a lower panel of the same shape and size, the upper panel and the lower panel are relatively fixed on the upper and lower surfaces of the short right-angled side, and the edges of the upper panel and the lower panel close to the right-angled triangle plate are parallel to the short right-angled side;

[0008] Furthermore, a scale line is provided on the long right-angled side of the right-angled triangle plate;

[0009] Furthermore, the ruler is retracted 1-10 mm at one end of the long right-angled side, the end of the ruler on the hypotenuse side is aligned with and smaller than the end of the short right-angled side, and the portion of the ruler end extending beyond the hypotenuse has the same inclination angle as the hypotenuse of the corner ruler;

[0010] Furthermore, the middle of the right-angled triangle plate is hollow or a whole plate.

[0011] The positive effect of the utility model is that, by using the corner ruler, two isosceles triangles can be marked out at a certain distance on a straight bridge profile by marking, and the height of each isosceles triangle is consistent with the long right angle side, and the inclination of the two sides is consistent with the inclination angle of the hypotenuse of the corner ruler;

[0012] The side edges are left and the remaining side profiles are bent to form straight profiles with two angles. The cables or wires can be bent at right angles to avoid right-angle bending and be set on the bending bridge. By using this corner ruler, the bent corner profiles can be docked with the straight profiles on both sides of the wall corner to form a precisely docked overall bridge. The cables can be bent and set on the corner bridge at the corner of the wall to avoid damage to the cables due to bending. Using this corner ruler can reduce construction errors, reduce calculations, and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the utility model Figure 1 .

[0014] Figure 2 The structure of the utility model Figure 2 .

[0015] Figure 3 Schematic diagram of the line drawing of a straight bridge.

[0016] Figure 4 Schematic diagram of the corner bridge after bending.

[0017] Explanation of reference numbers: 10-corner ruler, 11-hypotenuse, 12-long right-angle side, 13-short right-angle side, 14-small acute angle, 15-ruler, 16-plate material, 17-hollow part, 18-right-angle part, 19-large acute angle, 20-corner bridge, 21-straight bridge profile, 22a-removed part isosceles triangle one, 22b-removed part isosceles triangle two, 23-bending joint, 24-spot welding part, 25-upper panel, 26-lower panel, L-distance between wall corners. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is: a corner ruler made of a corner bridge, Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 The corner ruler 10 includes a right-angled triangle plate 16 and a straightedge 15. 18 is the right angle portion of the right-angled triangle plate. The corner ruler 10 formed by the plate 16 includes a short right-angled side 13 and a long right-angled side 12. The short right-angled side 13 is fixed to the straightedge 15. The straightedge 15 is thicker than the right-angled triangle plate 16, and the upper and lower surfaces of the straightedge 15 are higher than the upper and lower surfaces of the plate 16. At least the side of the straightedge 15 facing the right-angled triangle plate 16 is parallel to the short right-angled side 13. The large acute angle 19 relative to the long right-angled side is 67.5°±0.5°.

[0019] The ruler 15 is fixed to the plate 16 , and a groove is provided in the middle of the length direction of the ruler 15 , in which the short right-angled side 13 is embedded and fixed. The length of the ruler 15 is less than that of the short right-angled side 16 .

[0020] Figure 2 The structure of the utility model Figure 2 The ruler 15 includes an upper panel 25 and a lower panel 26 of the same shape and size. The upper panel 25 and the lower panel 26 are relatively fixed on the upper and lower surfaces of the short right-angled side 13. The edges of the upper panel 25 and the lower panel 26 close to the right-angled triangle plate 16 are parallel to the short right-angled side 13. In this embodiment, the right-angled triangle plate is a non-hollow solid structure.

[0021] Length scale lines are respectively provided on the long right-angled sides 12 of the right-angled triangle plate.

[0022] The ruler 15 is retracted 1-10 mm at one end of the long right-angled side 12, and the end of the ruler 15 on the hypotenuse side is aligned with and smaller than the end of the short right-angled side 13. The part of the end of the ruler 15 that extends beyond the hypotenuse 11 has the same inclination angle as the hypotenuse 11 of the corner ruler 10.

[0023] The middle of the right-angled triangle plate is hollow or a whole plate, and 17 is a hollow portion. Specific embodiments

[0024] Figure 3This is a schematic diagram of a straight bridge. Figure 4 This is a schematic diagram of the corner bridge after bending. To make a corner bridge, you can directly mark the straight bridge profile 21. First, determine the width of the distance L between the corners. When marking, point the ruler toward the inner side of the triangular plate and press it against the vertical edge on the opposite side of the distance L between the corners. The triangular plate is placed on the upper surface of the straight bridge profile 21. The hypotenuse 11 is aligned with the two ends of the distance L between the corners. The two ends of the distance L between the corners are used as the vertices of the two isosceles triangles. Two small acute angles 14 are marked back to back along the hypotenuse 11 to form the isosceles triangle 1 22a and the isosceles triangle 2 22b with the removed portion. Then , use a cutting machine saw blade about 1mm thick to cut with the waist line of the isosceles triangle as the center line of the cutting saw until the vertex is left, that is, the side of the corner bridge 20 facing the corner is left, and after removing the isosceles triangle 1 22a and the isosceles triangle 2 22b, the side still connects the straight bridge wire 21 together. Then, use the vertical line of the side of the isosceles triangle vertex as the folding line, and bend the straight bridge wire 21 along the vertical line. After bending, spot weld the bent joint 23, 24 is the spot weld part, and finally form Figure 3 The shape of the corner bridge 20 shown is such that the extension lines of the two side edges of the corner bridge 20 are perpendicular straight lines, that is, they can be connected to the straight bridges on both sides of the corner. After the isosceles triangle is drawn using this corner ruler 10, it can be bent and connected to the straight bridges on both sides of the corner. There is no need to consider the loss of part during cutting. No matter how long the distance L between the corners is set, it can finally be accurately connected to the straight bridges on both sides of the corner.

[0025] Specifically, the distance between the two ends of the distance L between the corners is equal to the distance from the corner position, that is, there is a 45° isosceles right triangle space between the corner bridge and the corner, and the line formed by the distance L between the corners forms an angle of 135° with the two sides of the corner. During cutting, if the center of the tool moves on the side of the isosceles triangle 1 22a of the removal part or the isosceles triangle 2 22b of the removal part, the edge of the tool will cut off the line to ensure that it becomes 135° after bending and docking. At this time, the large acute angle needs to be 67.5°.

[0026] If the tool cuts along the center of the marked line, after cutting, each side will cut off 0.25° respectively, and the two bending parts will cut off a total of 0.5°. To ensure that the bending becomes 135° after docking, the large acute angle needs to be 68°.

[0027] If the tool moves inside the removed isosceles triangle 1 22a or the removed isosceles triangle 2 22b, the marked line will be left, and about 0.25° will be left outside the marked line. After the two sides are bent and connected, they should be exactly 0.5° more. It is necessary to ensure that they become 135° after bending and connecting. At this time, the large acute angle needs to be 67°. Therefore, the large acute angle relative to the long right-angled side 12 is 67.5°±0.5°.

[0028] Since the 90 degrees of the right-angle portion 18 is constant, when the large acute angle 19 changes, the angle of the small acute angle 14 on the corner ruler changes accordingly.

[0029] The material of the corner ruler in the present invention can be bakelite, steel, aluminum alloy, or wear-resistant wood. The ruler 15 can be made of the same material as the plate 16 or different materials.

[0030] Therefore, it is necessary to determine the angles of the large acute angle 19 and the small acute angle 14 according to cutting habits. If cutting is performed along the center of the marking line, 0.5° will be lost on each side during the cutting process, and a total of 1° will be lost on both sides. The angle of the large acute angle needs to be determined at 68°, and the angle of the small acute angle at 22°. Only after bending in half can 135° be guaranteed.

[0031] The utility model can use the corner ruler 10 to mark out the removed isosceles triangle 1 22a and the removed isosceles triangle 2 22b on the straight bridge profile by marking according to a certain distance L between the wall corners. The heights of the removed isosceles triangle 1 22a and the removed isosceles triangle 2 22b are consistent with the long right-angled side 12, and the inclinations of the two sides are consistent with the inclination angles of the hypotenuse 11 of the corner ruler 10; the side of one end of the isosceles triangle vertex is left, and the left side profile is bent, so that the straight profile 10 forms a corner bridge 20 with two angles, which can avoid right-angle bending at the right angle and be set on the bent bridge. By using this corner ruler 10, the bent corner profile 21 can be formed into a precisely docked bridge with the straight bridges on both sides of the wall corner, and the cable can be bent and set on the corner bridge at the corner to prevent the cable from being damaged by bending. Using this corner ruler can reduce construction errors, reduce calculations, and improve construction efficiency.

Claims

1. A corner ruler made of a corner bridge, characterized by: The corner ruler includes a right-angled triangle plate and a straightedge. The right-angled triangle plate of the corner ruler includes a short right-angled side and a long right-angled side. The short right-angled side is fixed to the straightedge. The thickness of the straightedge is greater than that of the right-angled triangle plate, and the upper and lower surfaces of the straightedge are higher than the upper and lower surfaces of the plate. At least the side of the straightedge facing the right-angled triangle plate is parallel to the short right-angled side, and the relative large acute angle of the long right-angled side is 67.5°±0.5°.

2. A corner ruler made of a corner bridge according to claim 1, characterized in that: The ruler is fixed to the plate, and a groove is provided in the middle position in the length direction of the ruler, a short right-angled side portion is embedded and fixed in the groove, and the length of the ruler is smaller than the length of the short right-angled side.

3. The corner ruler made of a corner bridge according to claim 1, characterized in that: The ruler includes an upper panel and a lower panel of the same shape and size. The upper panel and the lower panel are relatively fixed on the upper and lower surfaces of the short right-angled side. The edges of the upper panel and the lower panel close to the right-angled triangle plate are parallel to the short right-angled side.

4. The corner ruler made of a corner bridge according to claim 1, characterized in that: Scale lines are provided on the long right-angled sides of the right-angled triangle plate.

5. The corner ruler made of a corner bridge according to claim 1, characterized in that: The ruler is retracted 1-10 mm at one end of the long right angle side, the end of the ruler on the hypotenuse side is aligned with and smaller than the end of the short right angle side, and the part of the ruler end exceeding the hypotenuse has the same inclination angle as the hypotenuse of the corner ruler.

6. The corner ruler made of a corner bridge according to claim 1, characterized in that: The middle of the right-angled triangle plate is hollow or a whole plate.

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