A level and method for measuring deflection of large-span components

Abstract

The present invention discloses a level ruler and a measuring method for measuring the deflection of a large-span component. The level ruler comprises a box body, an opening is provided on the left side of an outer wall of the box body, a cylinder is arranged inside the box body, the rear surface of the wall of the cylinder is fixedly connected to the inner wall of the box body, a plurality of fixing plates are fixedly connected to the inner rear surface of the box body and close to the outside of the cylinder, a No. 1 coil spring is wound and fixedly connected to the outside of the fixing plate, a No. 1 hose is fixedly connected to the left side of the interior of the cylinder, the No. 1 hose is wound inside the No. 1 coil spring, and the left end of the No. 1 hose passes through the outside of the opening, the left end of the No. 1 hose is fixedly connected to a No. 1 rigid end tube, and the interior of the No. 1 hose is filled with liquid; the right end of the box body is fixedly connected to a No. 2 rigid end tube; the present invention effectively avoids the problems of expensive equipment and the need for two people to cooperate in operation in the traditional level measurement method, and at the same time avoids the limitations due to measurement equipment, site and other factors.

Description

Technical Field

[0001] The invention relates to the technical field of deflection measurement, in particular to a level ruler and a measuring method for measuring the deflection of a large-span component. Background Art

[0002] Deflection is the displacement of the axis of a rod in a direction perpendicular to the axis or the linear displacement of the mid-surface of a plate or shell in a direction perpendicular to the mid-surface when subjected to force or non-uniform temperature changes. It is one of the methods used to study strain and stress in solid mechanics.

[0003] The conventional method for measuring the deflection of components is the level measurement method. Although this method is accurate, the equipment is expensive and requires the cooperation of two people. When measuring in a workshop, it is easily affected by the site, resulting in failure to measure or inaccurate measurement. Due to the limitations of measurement equipment, site and other factors, workshop masters often use the principle of consistent levels on both sides of the connecting pipe to measure the deflection of large-span components. However, when using simple rubber water pipes for measurement, the accuracy cannot be guaranteed. In addition, the pipe needs to be filled with water before each measurement, which is inconvenient to use. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a level and a method for measuring the deflection of a large-span component, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A level ruler for measuring the deflection of a large-span component comprises a box body, wherein an opening is provided on the left side of the outer wall of the box body, a cylinder is arranged inside the box body, the rear surface of the wall of the cylinder is fixedly connected to the inner wall of the box body, a plurality of fixing plates are fixedly connected to the inner rear surface of the box body and close to the outside of the cylinder, a No. 1 coil spring is fixedly connected to the outside of the fixing plates, a No. 1 hose is fixedly connected to the left side of the interior of the cylinder, the No. 1 hose is wound inside the No. 1 coil spring, and the left end of the No. 1 hose passes through the outside of the opening, the left end of the No. 1 hose is fixedly connected to a No. 1 rigid end tube, and the interior of the No. 1 hose is filled with liquid; a No. 2 rigid end tube is fixedly connected to the right end of the box body.

[0007] Preferably, there are three fixing plates in total, and the three fixing plates are distributed in a circular array.

[0008] Preferably, the ends of the No. 1 rigid end tube and the No. 2 rigid end tube away from the box body are both threadedly connected with sealing covers, and the outer side walls of the No. 1 rigid end tube and the No. 2 rigid end tube are both marked.

[0009] Preferably, magnets are fixedly connected to the top of the outer side walls of the No. 1 rigid end tube and the No. 2 rigid end tube adjacent to the box body end.

[0010] The measuring method of the spirit level for measuring the deflection of a large-span component is as follows: when using the spirit level, the user uses a magnet to adsorb the No. 2 rigid end tube to one end of the component to be measured, then pulls out the No. 1 rigid end tube, thereby driving the No. 1 hose to be pulled out, and adsorbs the No. 1 rigid end tube to the position where the deflection of the component is the largest through the magnet; according to the principle of the communicating vessel, the liquid levels at both ends are consistent, and since the middle position of the component must be deflected upward, the liquid level reading becomes smaller, and the difference between the two liquid level readings is the maximum deflection of the component.

[0011] The present invention provides a level ruler for measuring the deflection of a large-span component, which has the following beneficial effects:

[0012] The present invention effectively avoids the problems of expensive equipment and the need for two people to operate in the traditional level measurement method. At the same time, it avoids the problem that due to the limitations of measurement equipment, site and other factors, the masters in the workshop often use the principle of consistent levels on both sides of the connecting pipe to measure the deflection of large-span components, but use simple rubber water pipes for measurement, the accuracy cannot be guaranteed, and the pipe needs to be filled with water before each measurement, which is inconvenient to use. The device is simple to operate, easy to use, and effectively meets market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 For the present invention Figure 1 A schematic diagram of a top-view cross-sectional structure;

[0015] Figure 3 For the present invention Figure 1 Schematic diagram of the left-side cross-sectional structure.

[0016] In the figure: 1, box body; 2, No. 1 rigid end tube; 3, sealing cover; 4, No. 2 rigid end tube; 5, cylinder; 6, fixing plate; 7, magnet; 10, No. 1 coil spring; 11, opening; 12, No. 1 hose. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, a level ruler for measuring the deflection of a large-span component of the present invention comprises a box body 1, an opening 11 is provided on the left side of the outer wall of the box body 1, a cylinder 5 is arranged inside the box body 1, the rear surface of the wall of the cylinder 5 is fixedly connected to the inner wall of the box body 1, a plurality of fixing plates 6 are fixedly connected to the inner rear surface of the box body 1 and close to the outside of the cylinder 5, a No. 1 coil spring 10 is wound and fixedly connected to the outside of the fixing plate 6, the design of the No. 1 coil spring 10 can help the No. 1 hose 12 to automatically retract and coil up after being pulled out, and this principle is similar to the principle of a tape measure, a No. 1 hose 12 is fixedly connected to the left side of the inner part of the cylinder 5, the No. 1 hose 12 is wound inside the No. 1 coil spring 10, and the No. 1 hose 1 The left end of No. 2 passes through the outside of the opening 11, the left end of the No. 1 hose 12 is fixedly connected to the No. 1 rigid end pipe 2, and the right end of the box body 1 is fixedly connected to the No. 2 rigid end pipe 4. Through the design and improvement of the above structure, the problems of expensive equipment and the need for two people to cooperate in operation in the traditional level measurement method are effectively avoided. At the same time, it is avoided that due to the limitations of measurement equipment, site and other factors, workshop masters often use the principle of consistent level on both sides of the connecting pipe to measure the deflection of large-span components, but use simple rubber water pipes for measurement, and the accuracy cannot be guaranteed; and the pipe needs to be filled with water before each measurement, which is inconvenient to use. The device is simple to operate and easy to use.

[0019] Furthermore, there are three fixing plates 6 in total, and the three fixing plates 6 are distributed in a circular array. The fixing plates 6 are designed to facilitate the fixation of the No. 1 coil spring 10 .

[0020] Furthermore, the ends of the No. 1 rigid end tube 2 and the No. 2 rigid end tube 4 away from the box body 1 are both threadedly connected with a sealing cover 3, and the outer walls of the No. 1 rigid end tube 2 and the No. 2 rigid end tube 4 have scales. The design of the sealing cover 3 can prevent the liquid in the No. 1 hose 12 and the No. 2 hose 13 from flowing out, and the addition of the scale can make it easier for users to directly read the values.

[0021] Furthermore, magnets 7 are fixedly connected to the top of the outer walls of the No. 1 rigid end tube 2 and the No. 2 rigid end tube 4 near the end of the box body 1. The design of the magnet 7 is conducive to the adsorption and fixation of the No. 1 rigid end tube 2 and the No. 2 rigid end tube 4, and can help users measure and locate.

[0022] Furthermore, the interior of the No. 1 hose 12 is filled with liquid, and according to the principle of communicating vessels, the liquid levels at both ends are consistent. Since the middle position of the component must bend upward, the liquid level reading becomes smaller, and the difference between the two liquid level readings is the maximum deflection of the component.

[0023] In summary, the workflow of the present invention is as follows: when using the level ruler of the present invention, the user uses the magnet 7 to adsorb the No. 2 rigid end tube 4 to one end of the component to be measured, then pulls out the No. 1 rigid end tube 2, thereby driving the No. 1 hose 12 to be pulled out, and adsorbs the No. 1 rigid end tube 2 to the position where the component has the largest deflection through the magnet 7. According to the principle of the communicating vessel, the liquid levels at both ends are consistent, and since the middle position of the component must be deflected upward, the liquid level reading becomes smaller, and the difference between the two liquid level readings is the maximum deflection of the component.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A level ruler for measuring the deflection of a large-span component, comprising a box body (1), characterized in that: An opening (11) is provided on the left side of the outer wall of the box body (1), a cylinder (5) is arranged inside the box body (1), the rear surface of the wall of the cylinder (5) is fixedly connected to the inner wall of the box body (1), a plurality of fixing plates (6) are fixedly connected to the inner rear surface of the box body (1) and close to the outside of the cylinder (5), a No. 1 coil spring (10) is wound and fixedly connected to the outside of the fixing plate (6), a No. 1 hose (12) is fixedly connected to the left side of the inside of the cylinder (5), the No. 1 hose (12) is wound inside the No. 1 coil spring (10), and the left end of the No. 1 hose (12) passes through the outside of the opening (11), the left end of the No. 1 hose (12) is fixedly connected to the No. 1 rigid end pipe (2), and the interior of the No. 1 hose (12) is filled with liquid; the right end of the box body (1) is fixedly connected to the No. 2 rigid end pipe (4); The ends of the first rigid end tube (2) and the second rigid end tube (4) away from the box body (1) are both threadedly connected with a sealing cover (3), and the outer side walls of the first rigid end tube (2) and the second rigid end tube (4) are both marked with scales; Magnets (7) are fixedly connected to the top of the outer side walls of the first rigid end tube (2) and the second rigid end tube (4) near the box body (1).

2. A level for measuring the deflection of a large-span component according to claim 1, characterized in that: There are three fixing plates (6) in total, and the three fixing plates (6) are distributed in a circular array.

3. The method for measuring the deflection of a long-span component with a level ruler according to claim 1 or 2, characterized in that: When using the level ruler, the user uses the magnet (7) to adsorb the No. 2 rigid end tube (4) to one end of the component to be measured, and then pulls out the No. 1 rigid end tube (2), thereby driving the No. 1 hose (12) to be pulled out, and adsorbs the No. 1 rigid end tube (2) to the position where the component has the largest deflection through the magnet (7); according to the principle of the communicating vessel, the liquid levels at both ends are consistent, and since the middle position of the component must be deflected upward, the liquid level reading becomes smaller, and the difference between the two liquid level readings is the maximum deflection of the component.

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