CN205505947U - Measuring scale - Google Patents

Abstract

The utility model provides a measuring ruler. A measuring ruler, comprising an L-shaped measuring ruler body, a protrusion arranged along the direction of the long side on the outside of the intersection of the long side and the short side of the measuring ruler body, and a circular arc arranged at the angle between the protrusion and the short side The first groove for positioning one foot of the F rail, the second groove for positioning the other foot of the F rail on the free end with a short side, is arranged on the surface of the measuring ruler body The micrometer, the fourth groove that is arranged on the free end of the long side and cooperates with the micrometer to measure the size of the electric rail, the protrusion that is arranged at the fourth groove, the end of the protrusion A third groove is provided on the upper part to cooperate with the micrometer to measure the size of the insulator. The measuring ruler provided by the utility model has high efficiency, convenient measurement, simple structure and low price.

Description

Measuring ruler

technical field

The utility model relates to the field of construction measuring tools for magnetic levitation vehicles, in particular to a measuring ruler.

Background technique

A maglev train is a train propelled by magnetic levitation force (that is, magnetic attraction and repulsion). Due to the magnetic force of its track, it is suspended in the air and does not need to touch the ground when walking, so it has fast speed, safe, stable and comfortable operation, and low noise. As a clean and efficient mode of transportation, it is being accepted and promoted by more and more countries and cities.

The Changsha medium and low speed maglev project is the first medium and low speed maglev in China with independent design, independent manufacturing, independent construction and independent management. .

In the track construction of Changsha Maglev, the F track is used as the load-bearing rail to withstand the main body pressure of the train. The power-taking rails are set on both sides of the concrete beam supporting the load-bearing rail. The electric rail takes electricity, because the train needs continuous support and power, and the train has a high speed, so the train needs to keep in contact with the electric rail at all times, and the distance between the two should be controlled within a certain tolerance range to ensure the continuous stability of the train run. Because the medium and low-speed maglev is the first in China, there is currently no tool for testing the distance between the F rail and the power rail.

Utility model content

In order to overcome the deficiency of measuring tools for the distance between the F rail and the power rail in the prior art, the utility model provides a measuring ruler with high efficiency, convenient measurement, simple structure and low price. The specific plan is as follows:

A measuring ruler, comprising an L-shaped measuring ruler body, a protrusion arranged along the direction of the long side on the outside of the intersection of the long side and the short side of the measuring ruler body, and a circular arc arranged at the angle between the protrusion and the short side The first groove for positioning one foot of the F rail, the second groove for positioning the other foot of the F rail on the free end with a short side, is arranged on the surface of the measuring ruler body The micrometer, the fourth groove that is arranged on the free end of the long side and cooperates with the micrometer to measure the size of the electric rail, the protrusion that is arranged at the fourth groove, the end of the protrusion The third groove is provided on the upper part to cooperate with the micrometer to measure the size of the insulator.

According to a preferred embodiment of the present invention, the included angle between the protrusion and the short side of the L-shaped measuring ruler body is 83°.

According to a preferred embodiment of the present utility model, it also includes a triangular hole and an oblong holding hole for reducing the weight of the measuring ruler body itself, and the triangular hole is arranged on the short side of the L-shaped measuring ruler body and/or Or on the long side, the grip hole is located on the long side of the L-shaped measuring ruler body.

According to a preferred embodiment of the present invention, the material of the measuring ruler body is pure aluminum or aluminum alloy.

According to a preferred embodiment of the present invention, it also includes a strip-shaped positioning bar, the positioning bar is fixedly connected with the second groove, and is perpendicular to the plane where the measuring ruler body is located.

According to a preferred embodiment of the present invention, the distance between the upper surface of the positioning bar and the side of the third groove located outside the end of the measuring ruler body is 650mm, and the thickness of the measuring ruler body is 3mm-5mm.

The technical solution provided by the utility model has the following beneficial effects:

1. The measuring ruler provided by this technical solution is made of pure aluminum or aluminum alloy, which is light in weight and high in strength, as shown in Figure 3. When measuring, only one end needs to be close to the F rail, and the other end is stuck to the insulator on the power rail. If the insulator If it can be snapped into the third groove of the measuring ruler, it proves that the spacing is suitable, the operation is simple, the operation time is short, the measurement is accurate, and the efficiency is high.

2. The measuring ruler is light in weight and high in strength, and is very convenient to carry and measure.

3. The measuring ruler has a simple L-shaped structure, and only has a few parts such as the measuring ruler body, bumps, positioning strips and micrometers. It is small in size and simple in structure. The pure aluminum or aluminum alloy used to make the measuring ruler is cheap. The price of the whole measuring ruler is lower, and the construction cost can be saved.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Below with reference to accompanying drawing, the utility model is described in further detail.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention , for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative work, wherein:

Fig. 1 is the structural representation of the measuring ruler provided by the utility model;

Fig. 2 is the structural representation of F track in the prior art;

Fig. 3 is the schematic diagram when measuring ruler is measured among Fig. 1;

In the figure: 1. Measuring ruler body, 2. Protrusion, 3. First groove, 4. Holding hole, 5. Triangular hole, 6. Second groove, 7. Protrusion, 8. Micrometer, 9. The third groove, 10, positioning bar, 11, insulator, 12, power rail, 13, F rail, 14, beam body, 15, the fourth groove.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

Please refer to Figures 1 to 3, a measuring ruler, including an L-shaped measuring ruler body 1, a protrusion 2 arranged on the outside of the intersection of the long side and the short side of the measuring ruler body 1 along the long side direction, and located on the The arc shape at the angle between the protrusion 2 and the short side is used for positioning the first groove 3 of one foot of the F rail, and the free end with the short side is used for positioning the other foot of the F rail The second groove 6, the micrometer 8 arranged on the surface of the measuring ruler body 1, the fourth groove 15 arranged on the free end of the long side and cooperating with the micrometer 8 for measuring the size of the power rail, For the protruding block 7 at the fourth groove 15 , the end of the protruding block 7 is provided with a third groove 9 which cooperates with the micrometer 8 for measuring the size of the insulator.

The first groove 3 makes the F rail 13 fully contact with the protrusion 2 of the measuring ruler and the short side of the measuring ruler body 1 during measurement, so that the measurement is more accurate. The bump 7 is detachably connected to the measuring ruler body 1 , and can be used to separately detect the size of the power rail 12 after disassembly, and the measurement can be performed using the micrometer 8 and the fourth groove 15 .

The second groove 6 can be used for installing the positioning bar 10, increasing the contact area between the measuring ruler and the F rail 13. After installation, the upper surface of the positioning bar 10 is closely attached to the corresponding part of the F rail 13, so that the measuring ruler and the F rail 13 are closely attached. The rail 13 fits more tightly and measures more accurately.

Further, the included angle between the protrusion 2 and the short side of the L-shaped measuring ruler body 1 is 83°. Because the inclination angle of the surface of the F rail 13 and the protrusion 2 is 83°, this angle can ensure that the corresponding surface of the protrusion 2 is fully attached to the F rail 13, and the measurement is more accurate.

Further, it also includes a triangular hole 5 and an oblong holding hole 4, the triangular hole 5 is arranged on the short side of the L-shaped measuring ruler body 1, and the holding hole 4 is arranged on the L-shaped measuring ruler body 1. On the long side of ruler body 1. The triangular hole 5 can reduce the mass of the measuring ruler body 1 to a large extent, making measurement and carrying more convenient. The holding hole 4 is oblong, which is used to make the holding during measurement and carrying more convenient, and can be conveniently hung at the same time.

Further, the material of the measuring ruler body 1 is pure aluminum or aluminum alloy. Pure aluminum or aluminum alloy has the characteristics of light weight and good strength, and is easy to obtain, and the price is low, which saves costs.

Further, it also includes a strip-shaped positioning bar 10, said positioning bar 10 is fixedly connected with said second groove 6, and is perpendicular to the plane where the measuring ruler body 1 is located. The upper surface of the positioning bar 10 is fitted under the F rail 13 during use, so that the measuring ruler will not be inclined towards the laying direction of the train track, and the distance between the F rail 13 (fixed on the beam body 14 ) and the power rail 12 is Measurements are more accurate.

Further, the distance between the upper surface of the positioning bar 10 and the side surface of the third groove 9 located outside the end of the measuring ruler body 1 is 650mm, and the thickness of the measuring ruler body 1 is 3mm-5mm.

The above descriptions are only embodiments of the present utility model, and are not intended to limit the scope of patent protection of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification of the utility model and the contents of the accompanying drawings can be directly or indirectly used in other applications. Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (6)

1. a dip stick, it is characterised in that include the dip stick body (1) of L-shaped, be located at dip stick Outside body (1) long limit and minor face intersection along long side direction arrange projection (2), be located at described projection (2) With the circular arc of minor face angle and for the first groove (3) carrying out F rail one foot positioning, be provided with minor face Free end on and for the second groove (6) carrying out another foot of F rail positioning, be arranged on described dip stick The micrometer (8) on body (1) surface, it is located on the free end on long limit and coordinates with described micrometer (8) For measuring the 4th groove (15) of the size of power taking rail, being located at the projection (7) at described 4th groove (15) place, The end of described projection (7) is provided with the 3rd of the size coordinated for measuring insulator with described micrometer (8) Groove (9).

Dip stick the most according to claim 1, it is characterised in that described projection (2) is surveyed with L-shaped The angle of gage body (1) minor face is 83 °.

Dip stick the most according to claim 2, it is characterised in that also include for alleviating dip stick originally The delthyrium (5) of body (1) own wt and oblong gripping hole (4), described delthyrium (5) is located at On the minor face of described L-shaped dip stick body (1) and/or long limit, described gripping hole (4) is located at described L-shaped On the long limit of dip stick body (1).

Dip stick the most according to claim 2, it is characterised in that the material of described dip stick body (1) Matter is pure aluminum or aluminum alloy.

Dip stick the most according to claim 4, it is characterised in that also include the positioning strip (10) of strip, Described positioning strip (10) is fixing with described second groove (6) to be connected, and is perpendicular to dip stick body (1) institute In plane.

Dip stick the most according to claim 5, it is characterised in that described positioning strip (10) upper surface The distance being positioned at the side outside dip stick body (1) end with described 3rd groove (9) is 650mm, The thickness of described dip stick body (1) is 3mm～5mm.