Indium steel ruler

Abstract

The utility model discloses an invar ruler, and relates to the technical field of engineering measurement. According to the technical key points, the ruler comprises a ruler body, a flange base is fixedly installed at the bottom of the ruler body, and the lower portion of the flange base is connected with an installation base plate through a rotating assembly; the other end of the mounting substrate is connected with the supporting unit; the supporting unit comprises a vertically-arranged stand column, the lower end of the stand column is fixedly connected with the mounting base plate, two supports are fixedly arranged on the peripheral side of the upper end of the stand column, and an included angle is formed between the two supports which are symmetrical about the axis of the stand column. And the two brackets are respectively hinged with a telescopic adjusting support leg. In the rotation process of the ruler main body, the positions of the supporting legs and the mounting substrate can be kept still, so that the trouble of readjusting the perpendicularity of the ruler main body can be saved, and the measurement efficiency is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering measurement, and in particular to an indium steel ruler. Background Art

[0002] Indium steel ruler, also called indium tile ruler or indium tile level ruler, is a kind of level ruler. Its principle is to use an indium steel tape ruler to engrave and fix it in the ruler frame under certain conditions. Because it has better characteristics and higher accuracy than ordinary level rulers, this kind of ruler is the first choice for precise leveling measurement. Indium steel ruler is often used with a special digital level, which can automatically read after being aligned with the indium steel ruler.

[0003] In actual measurement, sometimes the digital level may not read the value. There are many reasons for this problem, including damage to the surface of the ruler, problems with sunlight at the measurement site, and light spots on the indium steel ruler.

[0004] When the surface of the ruler is damaged, the problem can be solved by replacing the indium steel ruler. For the problem of the angle of sunlight at the measurement site, the surveyor will adjust the angle of the indium steel ruler and turn it left or right to ensure that the light on the ruler surface is uniform for the level reading. When the indium steel ruler cannot be read due to light spots appearing on the ruler surface blocked by buildings or shade, the surveyor usually blocks the sunlight on the ruler surface with his hands or cardboard to make the sunlight on the ruler surface uniform for the level reading.

[0005] When surveyors are dealing with the problem of the level being unable to read due to light, in order to ensure that the light on the ruler surface is evenly distributed, they often destroy the verticality of the ruler that has been adjusted. This requires the ruler to be re-adjusted to its verticality with the ground after it has been turned, which increases the overall time of the measurement operation and affects the efficiency of the actual measurement. Utility Model Content

[0006] The present application provides an indium steel ruler, which can effectively solve the problem that the verticality of the indium steel ruler needs to be readjusted due to the need to adjust the angle during measurement.

[0007] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0008] An indium steel ruler comprises a ruler body, a bubble level is installed on the back of the ruler body, a flange base is fixedly installed on the bottom of the ruler body, a horizontal mounting base is arranged below the flange base, one end of the mounting base is connected to the bottom of the flange base through a rotating assembly, the flange base can be freely rotated around its own axis on the mounting base through the rotating assembly; the other end of the mounting base is connected to a supporting unit;

[0009] The support unit includes a vertically arranged column, the lower end of which is fixedly connected to the mounting base plate, and two brackets are fixedly provided on the circumferential side of the upper end of the column, with an angle between the two brackets and symmetrical about the axis of the column; a retractable adjustment leg is hinged on each of the two brackets.

[0010] Furthermore, the rotating assembly includes a bearing seat, the outer shell of the bearing seat is fixedly mounted on the mounting base plate, a rotating shaft is inserted in the center of the bearing seat, the lower end of the rotating shaft is fixedly connected to the inner ring of the bearing seat, and the upper end of the rotating shaft is fixedly connected to the flange base.

[0011] Furthermore, a conical ground-inserting end is provided directly below one end of the mounting base plate connected to the flange base.

[0012] Furthermore, a group of shielding units are respectively provided on both sides of the reading area in the width direction of the ruler body, and the two groups of shielding units are symmetrically arranged about the ruler body, and the shielding units can adjust the brightness of the light shining on the reading area of ​​the ruler body.

[0013] Furthermore, the shielding unit includes a plurality of arc-shaped shielding plates evenly arranged in the vertical direction on the front side of the ruler body, and the concave surface of the arc-shaped shielding plates faces the ruler body; one end of the arc-shaped shielding plate in the width direction is hinged to the outer side wall of the ruler body, and a fastener is installed on the outer side of the other end of the arc-shaped shielding plate, and the arc-shaped shielding plates of the same height of the two shielding units can be connected together through the fasteners on them.

[0014] Furthermore, the fastener comprises a support rod, one end of the support rod is fixedly connected to the arc-shaped shielding plate, and the other end of the support rod is connected to a round handle, and the diameter of the round handle is greater than the diameter of the support rod.

[0015] Furthermore, a lamp holder is installed on the top of the ruler body, a lighting lamp is installed below the lamp holder, and a wiring port is provided on the back of the lamp holder, and the wiring port can be connected to a power bank through a charging cable.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] After the surveyor places the ruler body at the point to be measured, he first adjusts the length and inclination angle of the two brackets to make the ruler body vertical at the point to be measured. If during the measurement process, the level cannot read due to an inappropriate light angle on the ruler body, the surveyor on the indium steel ruler side can rotate the ruler body in the horizontal direction. Since the lower end of the ruler body is movably connected to the mounting base plate through a rotating assembly, the positions of the legs and the mounting base plate can remain stationary during the rotation of the ruler body. In this way, after the ruler body is rotated until the light on its surface is uniform, it can still remain vertical to the ground, thereby eliminating the trouble of re-adjusting the verticality of the ruler body. Compared with the existing technology, the measurement operation time is effectively shortened and the measurement efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of this application;

[0020] Figure 2 It is a schematic diagram of the structure after the rotating assembly of the present application is disassembled;

[0021] Figure 3 yes Figure 1 A top view of the overall structure;

[0022] Figure 4 This is a schematic diagram of the state in which a plurality of arc-shaped shielding plates are folded together on the ruler body to seal and protect the ruler surface after use (in the figure, two fasteners at the same height are tied and fixed by rubber bands);

[0023] Figure 5 yes Figure 1 Bottom view of the overall structure.

[0024] Figure numerals: 1. Ruler body; 2. Bubble level; 3. Flange base; 4. Mounting base plate; 5. Rotating assembly; 51. Bearing seat; 52. Rotating shaft; 6. Support unit; 61. Column; 62. Bracket; 63. Adjusting leg; 7. Conical ground-inserting end; 8. Shielding unit; 81. Arc shielding plate; 82. Fastener; 821. Support rod; 822. Round handle; 9. Lamp holder; 10. Lighting lamp; 11. Wiring port. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0026] like Figure 1-Figure 3 As shown, an indium steel ruler disclosed in the present application comprises a ruler body 1, a bubble level 2 is installed on the back of the ruler body 1, a flange base 3 is fixedly installed on the bottom of the ruler body 1, a horizontal mounting base plate 4 is arranged below the flange base 3, one end of the mounting base plate 4 is connected to the bottom of the flange base 3 through a rotating assembly 5, and the flange base 3 can freely rotate around its own axis on the mounting base plate 4 through the rotating assembly 5; the other end of the mounting base plate 4 is connected to a supporting unit 6; the supporting unit 6 comprises a vertically arranged column 61, the lower end of the column 61 is fixedly connected to the mounting base plate 4, and two brackets 62 are fixedly arranged on the circumference of the upper end of the column 61, and the two brackets 62 have an angle between them and are symmetrical about the axis of the column 61; and a retractable adjustment leg 63 is hinged on each of the two brackets 62.

[0027] In the above embodiment, the structure of the ruler body 1 is the same as that of the indium steel ruler in the prior art, and its reading area (or ruler surface) is located at the front side, and the bubble level 2 on the back is convenient for the surveyor responsible for holding the ruler to adjust the verticality of the ruler body 1 at the point to be measured. The flange base 3 at the bottom of the ruler body 1 is connected to the mounting base plate 4 through the rotating assembly 5, so that the rotating assembly 5 can not only provide support for the ruler body 1 through the mounting base plate 4, but also the ruler body 1 can rotate freely on the mounting base plate 4 through the rotating assembly 5.

[0028] The mounting base plate 4 of the present application is hinged with two retractable adjustment legs 63 at one end away from the ruler body 1 through a column 61, wherein the adjustment legs 63 are composed of a main rod and a sub-rod, one end of the sub-rod is slidably inserted in the main rod, and an adjustment knob is inserted on one side of the main rod. After the surveyor has adjusted the length of the sub-rod in the main rod, the sub-rod can be fixed by adjusting the knob. Its principle and structure are similar to the legs of a common tripod. When the surveyor adjusts the ruler body 1, the verticality of the ruler body 1 at the point to be measured can be adjusted by changing the length of the adjustment legs 63 having a certain angle with each other and the angle with the column 61, or the surveyor can also adjust the ruler body 1 to be vertical at the point to be measured, and then change the angle between the two adjustment legs 63 and the column 61 and their own length to stably support the ruler body 1 to ensure that it is continuously in a vertical state during measurement.

[0029] When the surveyor on the ruler side adjusts the ruler body 1 to a vertical state by adjusting the two adjustment legs 63 and observing the bubble level 2, the surveyor on the observation side can read the reading on the ruler surface of the ruler body 1 through the digital level. If the surveyor on the observation side finds that the digital level cannot read the reading, the surveyor on the ruler side needs to observe the light on the ruler surface. If there are shadows of buildings nearby, and the shadows only cover part of the ruler surface, uneven brightness will appear on the ruler surface. The surveyor on the ruler side only needs to rotate the ruler body 1 in the horizontal direction so that it is completely in the sun or completely in the shadow of the building, as long as the light on the ruler surface is uniform. Since the ruler body 1 of the present application is movably mounted on the mounting substrate 4 through the rotating assembly 5, the mounting substrate 4 can remain stationary during the rotation of the ruler body 1, so that the ruler body 1 is still in a vertical state at the point to be measured after rotation. Compared with the indium steel ruler in the prior art, the trouble of re-adjusting the verticality is saved, which effectively shortens the measurement operation time and improves the measurement efficiency.

[0030] Furthermore, if Figure 2 As shown, the rotating assembly 5 includes a bearing seat 51, the outer shell of the bearing seat 51 is fixedly mounted on the mounting base plate 4, a rotating shaft 52 is inserted in the center of the bearing seat 51, the lower end of the rotating shaft 52 is fixedly connected to the inner ring of the bearing seat 51, and the upper end of the rotating shaft 52 is fixedly connected to the flange base 3.

[0031] In the above embodiments, the outer shell of the bearing seat 51 of the present application can be fixedly mounted on the mounting base plate 4 by bolts, so that not only the stability of the connection between them can be ensured during use, but also they can be disassembled for storage by loosening the bolts after subsequent use. Ball bearings are arranged between the inner ring and the outer shell of the bearing seat 51, and the inner ring of the bearing seat 51 is fixedly connected to the flange base 3 through the rotating shaft 52, so that the ruler body 1 and the flange base 3 can be rotatably connected with the outer shell of the bearing seat 51 through the rotating shaft 52 and the inner ring. Compared with sliding friction, the rolling friction between the outer shell and the inner ring of the bearing seat 51 will be less resistant, and the measurement personnel will be more relaxed and smooth when rotating the ruler body 1. To a certain extent, it can also avoid the resistance of the ruler body 1 when rotating to shake the mounting base plate 4 and affect its state.

[0032] Furthermore, if Figure 1 and Figure 5 As shown, a conical grounding end 7 is provided just below one end of the mounting base plate 4 connected to the flange base 3 .

[0033] In the above embodiment, the mounting base plate 4 contacts the ground through the conical ground-inserting end 7, which can reduce the contact area with the rest of the ground. It is more convenient to adjust the verticality of the ruler body 1 through the two adjustment legs 63, and it is also convenient to use even on uneven ground.

[0034] Furthermore, if Figure 1 and Figure 3 As shown, a group of shielding units 8 are respectively provided on both sides of the ruler body 1 in the width direction of the reading area, and the two groups of shielding units 8 are symmetrically arranged about the ruler body 1. The shielding units 8 can adjust the brightness of the light shining on the reading area of ​​the ruler body 1.

[0035] In the above embodiments, when measuring outdoors, the point to be measured is sometimes located under the shade of a tree. At this time, light spots are likely to appear on the surface of the ruler body 1. The presence of these light spots will also cause uneven brightness on the surface of the ruler, affecting the reading of the level meter. It is difficult to solve the light spots by rotating the ruler body 1. The surveyor can block the light that generates the light spots on the surface of the ruler body 1 by adjusting the shielding unit 8 on the corresponding side of the present application, thereby adjusting the light brightness in the reading area of ​​the ruler body 1 to make the overall brightness area consistent, which is convenient for the surveyor on the observation side to use the level meter to read the relevant data on the ruler body 1.

[0036] Furthermore, if Figure 1 , Figure 3 and Figure 4 As shown, the shielding unit 8 includes a plurality of arc-shaped shielding plates 81 uniformly arranged along the vertical direction on the front side of the ruler body 1, and the concave surface of the arc-shaped shielding plate 81 faces the ruler body 1; one end of the arc-shaped shielding plate 81 in the width direction is hinged to the outer side wall of the ruler body 1, and a fastener 82 is installed on the outer side of the other end of the arc-shaped shielding plate 81, and the arc-shaped shielding plates 81 of the same height of the two shielding units 8 can be connected together through the fasteners 82 thereon.

[0037] In the above embodiments, since the light spot on the ruler body 1 may be distributed at different positions in its height direction, and the source of the light may be the left or right side of the ruler body 1, the present application respectively sets a plurality of arc-shaped shielding plates 81 on both sides of the width direction of the reading area of ​​the ruler body 1. When the surveyor finds that a light spot appears somewhere in the reading area of ​​the ruler body 1, he only needs to find the arc-shaped shielding plate 81 of the corresponding height, and then select the arc-shaped shielding plate 81 on the corresponding side according to the irradiation direction of the light for rotation adjustment. The arc-shaped shielding plate 81 can be used to block the light that generates the light spot, so that the overall brightness of the reading area of ​​the ruler body 1 becomes uniform, which is convenient for level instrument observation.

[0038] In addition, the arc length and the corresponding central angle of the arc shielding plate 81 of the present application meet the requirement that when the arc shielding plates 81 of the same height are close to each other, the reading area of ​​the ruler body 1 can be completely shielded, so that the fasteners 82 on them can protect the reading area of ​​the ruler body 1 (such as Figure 4 To prevent the reading area from being damaged by bumps when the measuring personnel move or carry the indium steel ruler.

[0039] Furthermore, if Figure 1 , Figure 3 and Figure 4 As shown, the fastener 82 includes a support rod 821 , one end of which is fixedly connected to the arc-shaped shielding plate 81 , and the other end of the support rod 821 is connected to a circular handle 822 , and the diameter of the circular handle 822 is greater than the diameter of the support rod 821 .

[0040] In the above embodiments, the support rod 821 can ensure a certain distance between the circular handle 822 and the outer surface of the arc-shaped shielding plate 81 , so that it is convenient for the measurement personnel to adjust the opening and closing angle of the arc-shaped shielding plate 81 through the circular handle 822 .

[0041] In addition, after the free ends of the arc-shaped shielding plates 81 at the same height contact each other, they can also be fixed by winding rubber bands or ropes around the support rods 821 of the two arc-shaped shielding plates 81 in turn, and the circular handle 822 with a larger diameter than the support column can limit the binding parts such as rubber bands or ropes to prevent the fastener 82 from detaching from the support rod 821.

[0042] Furthermore, if Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a lamp holder 9 is installed on the top of the ruler body 1, a lighting lamp 10 is installed below the lamp holder 9, and a wiring port 11 is provided on the back of the lamp holder 9. The wiring port 11 can be connected to a power bank through a charging cable.

[0043] In the above embodiment, when the indium steel ruler is used in a tunnel or at night, it is difficult for the surveyor on the observation side to obtain the data on the ruler surface through the level because the surrounding environment is very dark. At this time, the staff on the ruler side can connect the connection line on the power bank to the wiring port 11 of the lamp holder 9, and then the lighting lamp 10 under the lamp holder 9 will light up, and a top-down light will be generated on the front side of the ruler body 1 to illuminate the ruler surface, which is convenient for the level reading, and effectively improves the practicality of the indium steel ruler of this application.

[0044] The implementation principle of this embodiment is as follows: before use, the surveyor places the ruler body 1 and other components at the point to be measured and then assembles them; after the assembly is completed, the conical ground-inserting end 7 under the flange base 3 is first inserted into the point to be measured, and then the length and inclination angle of the two brackets 62 are adjusted to make the ruler body 1 in a vertical state at the point to be measured. During the measurement process, if the level cannot read the light on the ruler body 1 due to uneven light, the surveyor on the ruler side of the indium steel ruler can first look at the light distribution on the ruler body 1. If the boundary line between the bright light area and the dark light area on the ruler body 1 is located in its reading area, the surveyor on the ruler side can rotate the ruler body 1 in the horizontal direction so that the reading area of ​​the ruler body 1 is all in bright light or all in dark light, as long as the light on its surface is uniform.

[0045] Since the lower end of the ruler body 1 is movably connected to the mounting base plate 4 through the rotating assembly 5, the positions of the legs and the mounting base plate 4 can remain unchanged during the rotation of the ruler body 1, so that after the ruler body 1 rotates, it can still remain perpendicular to the ground, thereby eliminating the trouble of re-adjusting the verticality of the ruler body 1. If the surveyor on the ruler side finds that the uneven light problem of the ruler body 1 is caused by a light spot, he only needs to find the arc shielding plate 81 of the corresponding height, and then select the arc shielding plate 81 on the corresponding side according to the irradiation direction of the light for rotation adjustment, so that the arc shielding plate 81 can be used to block the light that produces the light spot, so that the overall brightness of the reading area of ​​the ruler body 1 becomes uniform.

[0046] If the measurement is made at night or in a dimly lit place, the staff on the ruler side can connect the connecting line of the power bank to the wiring port 11 of the lamp holder 9. At this time, the lighting lamp 10 under the lamp holder 9 will light up, and light from top to bottom will be generated on the front side of the ruler body 1 to illuminate the ruler surface, so that the surveyor on the observation side can use the level to take readings.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An indium steel ruler, comprising a ruler body (1), a bubble level (2) being mounted on the back of the ruler body (1), characterized in that: A flange base (3) is fixedly mounted at the bottom of the ruler body (1); a horizontal mounting base (4) is provided below the flange base (3); one end of the mounting base (4) is connected to the bottom of the flange base (3) via a rotating assembly (5); the flange base (3) can freely rotate around its own axis on the mounting base (4) via the rotating assembly (5); the other end of the mounting base (4) is connected to a supporting unit (6); The support unit (6) comprises a vertically arranged column (61), the lower end of the column (61) is fixedly connected to the mounting base plate (4), and two brackets (62) are fixedly arranged around the upper end of the column (61), an angle is formed between the two brackets (62) and they are symmetrical about the axis of the column (61); and a retractable adjustment leg (63) is hingedly connected to each of the two brackets (62).

2. The indium steel ruler according to claim 1, characterized in that: The rotating assembly (5) comprises a bearing seat (51), the outer shell of the bearing seat (51) is fixedly mounted on the mounting base plate (4), a rotating shaft (52) is inserted in the center of the bearing seat (51), the lower end of the rotating shaft (52) is fixedly connected to the inner ring of the bearing seat (51), and the upper end of the rotating shaft (52) is fixedly connected to the flange base (3).

3. The indium steel ruler according to claim 1, characterized in that: A conical ground-inserting end (7) is provided directly below one end of the mounting base plate (4) connected to the flange base (3).

4. The indium steel ruler according to any one of claims 1 to 3, characterized in that: A group of shielding units (8) are respectively provided on both sides of the ruler body (1) in the width direction of the reading area, and the two groups of shielding units (8) are symmetrically arranged with respect to the ruler body (1). The shielding units (8) can shield and adjust the brightness of light shining on the reading area of ​​the ruler body (1).

5. The indium steel ruler according to claim 4, characterized in that: The shielding unit (8) comprises a plurality of arc-shaped shielding plates (81) uniformly arranged in the vertical direction on the front side of the ruler body (1), and the concave surface of the arc-shaped shielding plates (81) faces the ruler body (1); one end of the arc-shaped shielding plate (81) in the width direction is hinged to the outer side wall of the ruler body (1), and a fastener (82) is installed on the outer side of the other end of the arc-shaped shielding plate (81), and the arc-shaped shielding plates (81) at the same height of two shielding units (8) can be connected together through the fasteners (82) thereon.

6. The indium steel ruler according to claim 5, characterized in that: The fastener (82) comprises a support rod (821), one end of the support rod (821) is fixedly connected to the arc-shaped shielding plate (81), and the other end of the support rod (821) is connected to a circular handle (822), and the diameter of the circular handle (822) is greater than the diameter of the support rod (821).

7. The indium steel ruler according to any one of claims 1 to 3, characterized in that: A lamp holder (9) is installed on the top of the ruler body (1), a lighting lamp (10) is installed below the lamp holder (9), and a wiring port (11) is provided on the back of the lamp holder (9), and the wiring port (11) can be connected to a power bank via a charging cable.

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