A convenient leveling staff

Abstract

This application relates to the field of municipal road detection tools, and discloses a convenient leveling staff, which includes a staff rod. A light guide strip is fixed along the length direction on the scale surface of the staff rod. A light-emitting component for providing a light source for the light guide strip to facilitate the light emission of the light guide strip and a power source for supplying power to the light-emitting component are arranged in the staff rod. This application has the effect of facilitating reading at night.

Description

Technical Field

[0001] This application relates to the field of municipal road testing tools, and particularly to a convenient leveling staff. Background Art

[0002] A leveling staff is an essential tool for road leveling measurement in municipal road testing. It is mostly made of high-quality wood, fiberglass, aluminum alloy and other materials. In projects with urgent construction periods, in order to catch up with the construction period, it is often necessary to carry out road surveys at night. When using a leveling staff at this time, a person needs to hold a supplementary light beside the leveling staff to irradiate the leveling staff so that the surveyors can read the readings. This not only increases the personnel and equipment required for road surveys, but is also particularly troublesome and very inconvenient to use. Summary of the Invention

[0003] In order to facilitate reading at night, this application provides a convenient leveling staff.

[0004] A convenient leveling staff provided by this application adopts the following technical solutions:

[0005] A convenient leveling staff includes a staff rod. A light guide strip is fixed along the length direction on the scale surface of the staff rod. A light-emitting component for providing a light source for the light guide strip to emit light and a power source for supplying power to the light-emitting component are arranged inside the staff rod.

[0006] By adopting the above technical solutions, when this application is used at night, the power source supplies power to the light-emitting component, and the light-emitting component supplies the light source into the light guide strip, causing the light guide strip to emit light. Since the light guide strip is arranged along the length direction of the scale surface of the staff rod, it is convenient to illuminate the scales on the staff rod, thus facilitating the user to read the scale values on the leveling staff at night.

[0007] Preferably, positioning holes are formed on the staff rod, and plug-in columns inserted and matched with the positioning holes are integrally fixed on the light guide strip.

[0008] By adopting the above technical solutions, the plug-in cooperation between the plug-in columns and the positioning holes facilitates the positioning and installation of the light guide strip.

[0009] Preferably, the light-emitting component is arranged at the bottom of the positioning hole, and a V-shaped light splitting reflection surface for reflecting the light emitted by the light-emitting component to both ends of the light guide strip is arranged at the end of the light guide strip far from the light-emitting component where the plug-in column is located.

[0010] By adopting the above technical solutions, the light source emitted by the light-emitting component is introduced into the light guide strip through the plug-in column and irradiated onto the V-shaped light splitting reflection surface. Then the light source is split into two by the V-shaped light splitting reflection surface and respectively reflected to both ends of the light guide strip, thus avoiding the problem of excessive local light intensity at the V-shaped light splitting reflection surface of the light guide strip causing glare.

[0011] Preferably, light guide bars are symmetrically and fixedly arranged on both sides of the scale bar. Connecting bars are integrally connected to both ends between the two light guide bars. Two light equalizing reflecting surfaces for guiding redundant light sources in one light guide bar into the other light guide bar are arranged on the connecting bar, and the two light equalizing reflecting surfaces are respectively arranged at both ends of the connecting bar.

[0012] By adopting the above technical solutions, on the one hand, the connecting bar connects the two light guide bars, improving the integrity of the structure. On the other hand, redundant light sources in a single light guide bar are reflected by the two light equalizing reflecting surfaces and then enter the other light guide bar, realizing the intercommunication of light sources in the two light guide bars on both sides, making full use of the light sources to supplement light to the end of the light guide bar, which is beneficial to averaging the luminous intensity of the whole light guide bar and improving the comfort of reading the readings.

[0013] Preferably, a plurality of light emitting grooves are formed in the side surfaces of the two light guide bars close to each other.

[0014] By adopting the above technical solutions, the light emitting grooves facilitate the light to emit from the light emitting grooves during the propagation of the light in the light guide bar, illuminating the scales on the scale bar.

[0015] Preferably, the power supply is fixed at the bottom end of the scale bar. A support ring is sleeved on the scale bar, and the scale bar is movably connected in the support ring. A plurality of support feet are fixedly arranged on the circumferential side of the support ring.

[0016] By adopting the above technical solutions, the support feet and the support ring are used to support the scale bar. Since the scale bar is movably arranged in the support ring, it is convenient to adjust the posture of the scale bar.

[0017] Preferably, a soft air bag is coaxially and fixedly arranged in the support ring. Support shafts are fixedly arranged on both sides of the scale bar, and the support shafts are pressed on the soft air bag.

[0018] By adopting the above technical solutions, using the soft air bag and the power supply as counterweights, and squeezing the soft air bag through the support shafts is beneficial to keeping the support shafts in a horizontal state and the scale bar in a vertical posture, facilitating reading the scale readings on the scale bar.

[0019] Preferably, a lining ring is rotatably arranged on the inner wall of the support ring. Plug slots for plugging and matching with the support shafts are formed on both sides of the lining ring. The depth of the plug slots is greater than the thickness of the soft air bag, and the soft air bag is fixed between the lining ring and the support ring.

[0020] By adopting the above technical solutions, using the lining ring and the plug slots to limit the posture of the scale bar in the horizontal plane. Through the rotational connection between the lining ring and the support ring, it is convenient to rotate the scale bar in the horizontal plane, changing the orientation of the scale surface of the scale bar, so as to further facilitate personnel at different positions to read the readings.

[0021] Preferably, the support feet are telescopic feet with adjustable lengths.

[0022] By adopting the above technical solution, it is beneficial to roughly adjust the support ring to be horizontal and place it at survey positions with different slopes.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] The light guide bar is used to introduce the light source of the light-emitting component and emit the light source at a specific position to illuminate the scale surface on the scale rod, facilitating the user to read the scale on the leveling staff at night and improving the convenience of using the leveling staff at night;

[0025] In addition, the present application also adopts a V-shaped light-splitting reflection surface to decompose the light emitted by the light-emitting component, avoiding excessive local light intensity on the light guide component and causing glare. Then, by using a light-homogenizing reflection surface, the light in the light guide components on both sides is made to communicate with each other, and the excess light is projected into the light guide bar on the other side for propagation, further improving the uniformity in the light guide bar, wasting the light source, and only using two light-emitting components, greatly reducing the cost of the product, simplifying the product structure, and facilitating production and manufacturing;

[0026] The power supply acts as a counterweight, and with the self-weight of the power supply and the soft support of the soft airbag, the leveling staff is kept vertical, improving the reading accuracy and also the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. is a schematic structural diagram of a convenient leveling staff in the first embodiment of the present application (the V-shaped light-splitting reflection surface is cut open to show the internal structure).

[0028] Figure 2 is Figure 1 A partial enlarged view of part A in FIG.

[0029] Figure 3 FIG. is a schematic structural diagram of a convenient leveling staff in the second embodiment of the present application (part of the support ring is cut off to show the internal structure).

[0030] Description of the reference numerals: 1, scale rod; 2, light guide bar; 3, light-emitting component; 4, power supply; 5, positioning hole; 6, plug-in column; 7, V-shaped light-splitting reflection surface; 8, connecting bar; 9, light-homogenizing reflection surface; 10, light-emitting slot; 11, support ring; 12, support feet; 13, soft airbag; 14, support shaft; 15, inner lining ring; 16, slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following is a further detailed description of the present application with reference to the attached Figures 1-3 drawings.

[0032] The embodiments of the present application disclose a convenient leveling staff.

[0033] Example 1:

[0034] Referring to Figure 1 and Figure 2 , a convenient leveling staff, including a staff rod 1. The material of the staff rod 1 is preferably aluminum alloy, which is beneficial to reducing the mass, facilitating carrying and being corrosion-resistant. A through hole is formed in the staff rod 1 along its length direction to reduce the mass of the staff rod 1, facilitating carrying and handling. Guide light bars 2 are fixedly arranged on both sides of the staff rod 1 along its length direction. The scale of the staff rod 1 is arranged between the two guide light bars 2. A light-emitting component 3 for providing a light source to the guide light bars 2 and a power source 4 for supplying power to the light-emitting component 3 are arranged in the staff rod 1. The power source 4 is a portable USB mobile power source, and the power source 4 is detachably fixed in the hole of the staff rod 1, facilitating replacement and carrying. When in use at night, the power source 4 supplies power to the light-emitting component 3, and the light source emitted by the light-emitting component 3 is injected into the guide light bars 2. The guide light bars 2 guide the light source to propagate and diverge along the length direction of the staff rod 1, thereby illuminating the scale located between the two guide light bars 2, facilitating the user to read the scale on the leveling staff at night.

[0035] Positioning holes 5 are formed on both sides of the middle part of the staff rod 1 in the length direction of the scale surface. Insertion columns 6 that are integrally fixed to the guide light bars 2 and are in plug-in fit with the positioning holes 5 are provided. During manufacturing, the plug-in fit between the insertion columns 6 and the positioning holes 5 is utilized to facilitate fixing the guide light bars 2 at specific positions on the staff rod 1, improving the stability of the guide light bars 2 fixed on the staff rod 1. The light-emitting component 3 is installed at the bottom of the positioning hole 5, and the light-emitting component 3 is a lamp bead. A V-shaped groove is formed at the end of the insertion column 6 of the guide light bar 2 away from the light-emitting component 3. V-shaped light-splitting reflection surfaces 7 for reflecting the light emitted by the light-emitting component 3 to both ends of the guide light bar 2 are formed by silver plating or pasting a reflective film on the inner walls of both sides of the V-shaped groove. The light source emitted by the light-emitting component 3 is evenly divided at the bottom of the V-shaped groove. The light emitted by the light-emitting component 3 enters the V-shaped light-splitting reflection surface 7 in the guide light bar 2 from one end of the insertion column 6 along the length direction of the positioning hole 5. Then the light is split into two by the V-shaped light-splitting reflection surface 7 and respectively shoots towards both ends of the guide light bar 2, achieving the effect of the entire guide light bar 2 emitting light. Connection bars 8 are integrally connected to both ends between the two guide light bars 2. The guide light bars 2 and the connection bars 8 are both made of light-guiding plastic. The connection bars 8 are perpendicular to the guide light bars 2. Chamfers are provided at both ends of the connection bars 8, and the chamfer angle is 45 degrees. The inclined surface of the chamfer forms a light-averaging reflection surface 9 by silver plating or pasting a reflective film. The extra light source in one side guide light bar 2 will shoot onto the light-averaging reflection surface 9, then be reflected to the light-averaging reflection surface 9 at the other end of the connection bar 8, and then be reflected into the guide light bar 2 on the other side, thereby realizing the intercommunication of the extra light sources in the two guide light bars 2, enhancing the light-emitting intensity at the end of the guide light bar 2, being beneficial to the light intensity of the entire guide light bar 2 tending to be close, achieving the effect of light averaging. A plurality of light-emitting slots 10 are formed on the side surfaces of the two guide light bars 2 close to each other, which is more conducive to the light emitting from the inner side wall of the guide light bar 2 and irradiating onto the scale, facilitating the identification and reading of the scale at night.

[0036] In this embodiment, the volume increase is small based on the original scale rod, which is convenient to carry and suitable for measurement readings in multiple night scenarios. The biggest highlight of this application is that only the light sources of two light-emitting components 3 are used. By guiding the propagation direction of the light source and controlling the position where the light source is emitted, the light source emitted from the scale rod 1 is fully irradiated onto the scale surface of the scale rod 1, facilitating the user to read the scale at night. At the same time, in order to avoid the problem of glare caused by high local light intensity, the redundant light in the unilateral light guide strip 2 is introduced into the light guide strip 2 on the other side through two light intensity equalizing reflection surfaces 9, realizing the supplement of the light intensity at the ends of the two light guide strips 2, which is beneficial to the consistency of the light emission intensity of the entire light guide strip 2.

[0037] Embodiment 2:

[0038] Refer to Figure 3 , a convenient leveling staff, which is different from Embodiment 1 in that a support ring 11 is sleeved on the scale rod 1, the middle part of the scale rod 1 in the length direction is movably connected in multiple degrees of freedom in the support ring 11, three support feet 12 are fixed on the circumferential side of the support ring 11, and the power supply 4 is fixed at the bottom end of the scale rod 1. During use, the power supply 4 can also act as a counterweight. Under the action of the self-weight of the power supply 4, the scale rod 1 is driven to be in a vertical state.

[0039] A soft airbag 13 is coaxially fixed in the support ring 11. The material of the soft airbag 13 has elasticity. Support shafts 14 are fixed on both sides of the scale rod 1, and the support shafts 14 are pressed on the soft airbag 13. If the width direction of the scale rod 1 is not in a horizontal state, under the action of the counterweight of the power supply 4, the support shafts 14 press down the soft airbag 13. The two support shafts 14 on both sides are beneficial to restoring the horizontal state, and the length direction of the scale rod 1 remains in a vertical state, realizing more accurate attitude adjustment of the scale rod 1. A lining ring 15 is rotatably connected to the inner wall of the support ring 11. A convex ring is integrally provided coaxially on the inner wall of the support ring 11. A ring groove engaged with the convex ring is provided on the circumferential side of the lining ring 15. The rotation connection between the lining ring 15 and the inner wall of the support ring 11 is realized by the engagement of the ring groove and the convex ring. Plug slots 16 engaged with the support shafts 14 are provided on both sides of the lining ring 15. The depth of the plug slots 16 is much larger than the thickness of the soft airbag 13. The soft airbag 13 is fixed between the lining ring 15 and the support ring 11. Through the plug connection between the support shafts 14 and the plug slots 16, it is ensured that the scale rod 1 can be stable at a specific position. In addition, during use, the scale of the scale rod 1 needs to be read with different orientations. Using the rotation connection between the lining ring 15 and the support ring 11, it is convenient to rotate the scale rod 1 in the horizontal plane to different directions, so as to facilitate people at different positions to read the scale.

[0040] The attitude of the scale rod 1 is adjusted by its own weight, but the adjustment range of the attitude of the scale rod 1 is relatively limited. In order to cooperate with the adjustment of the scale rod 1 by its own weight, the support ring 11 needs to be roughly adjusted to the horizontal position first, and then the attitude of the scale rod is adjusted by the self-weight of the power supply 4, which can achieve better results. However, some survey points are on inclined surfaces, which will cause the support ring 11 to deviate greatly from the horizontal position. Therefore, the support feet 12 are set as telescopic feet with adjustable lengths, and the lengths of the support feet 12 are locked by bolts. By adjusting the lengths of the three support feet 12 to different values, it is convenient to adjust the support ring 11 to a roughly horizontal state, and then in combination with the self-weight of the power supply 4, it is beneficial for the scale rod 1 to automatically adjust to the level attitude faster, improving the accuracy of the reading of the spirit level.

[0041] In this embodiment, the support ring 11 and the support feet 12 are added on the basis of Embodiment 1, aiming to facilitate the vertical placement of the scale rod 1. The support shafts 14 on both sides of the scale rod 1 press on the soft airbag 13. Under the action of the self-weights of the scale rod 1 and the power supply 4, the soft airbag 13 balances the supporting forces on the support shafts 14 on both sides of the scale rod 1 through deformation, which is more conducive to the vertical setting of the scale rod 1 in the support ring 11, further improving the accuracy of the reading of the spirit level.

[0042] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A convenient level ruler, characterized by: The ruler (1) comprises a ruler (1), a light guide bar (2) being fixed on a scale surface of the ruler (1) along its length, a light emitting element (3) for providing a light source for the light guide bar (2) so that the light guide bar (2) emits light, and a power supply (4) for supplying power to the light emitting element (3) are provided in the ruler (1); A positioning hole (5) is provided on the ruler (1); a plug-in column (6) plugged into and matched with the positioning hole (5) is integrally fixed to the light guide bar (2); the light emitting component (3) is arranged at the bottom of the positioning hole (5); and a V-shaped light splitting reflection surface (7) is provided on the end of the plug-in column (6) away from the light emitting component (3) of the light guide bar (2) for reflecting light emitted by the light emitting component (3) to both ends of the light guide bar (2); The power supply (4) is fixed to the bottom end of the ruler (1), and a support ring (11) is sleeved on the ruler (1). The middle part of the ruler (1) in the length direction is movably connected to the support ring (11), and a plurality of support legs (12) are fixed on the circumference of the support ring (11); a soft air bag (13) is coaxially fixed in the support ring (11), and support shafts (14) are fixed on both sides of the ruler (1), and the support shafts (14) are pressed on the soft air bag (13); an inner lining ring (15) is rotatably provided on the inner wall of the support ring (11), and slots (16) for plugging and matching with the support shaft (14) are opened on both sides of the inner lining ring (15), and the depth of the slots (16) is greater than the thickness of the soft air bag (13), and the soft air bag (13) is fixed between the inner lining ring (15) and the support ring (11); The supporting legs (12) are telescopic supporting legs with adjustable lengths.

2. A portable leveling rod according to claim 1, characterized in that: The light guide strips (2) are symmetrically fixed on both sides of the ruler (1), and both ends of the two light guide strips (2) are integrally connected with a connecting strip (8). The connecting strip (8) is provided with two evenly distributed light reflection surfaces (9) for guiding excess light in the light guide strip (2) on one side into the light guide strip (2) on the other side, and the two evenly distributed light reflection surfaces (9) are respectively provided at both ends of the connecting strip (8).

3. A convenient leveling rod according to claim 2, characterized in that: A plurality of light emission slots (10) are provided on the mutually adjacent sides of the two light guide bars (2).

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