Concrete base plane flatness measuring device

Abstract

The utility model provides a concrete base plane flatness measuring device which comprises a frame structure, a height-adjustable supporting structure is fixed below the frame structure, the bottom surface of the supporting structure is arranged on a concrete base plane, a distance measuring mechanism is connected in the frame structure in a sliding mode, and the distance measuring mechanism can move back and forth in the length direction of the frame structure. Scale marks are arranged in the length direction of the frame structure, a hollow area is arranged in the length direction of the frame structure, the distance measuring mechanism comprises a distance measuring instrument, the distance measuring instrument is located in the hollow area of the frame structure, and the frame structure is parallel to the concrete base plane by adjusting the supporting structure; the distance measuring instrument is pushed to measure the vertical distance (namely the level height) between the distance measuring instrument and the concrete base surface at different positions and draw a relational graph between the different positions and the level height, the flatness of the measured concrete base surface is visually presented, uneven positions are analyzed in combination with the scale marks to guide next construction, errors are small, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project risk elimination and reinforcement, in particular to a concrete base surface flatness measuring device. Background Art

[0002] In the field of water conservancy project hazard prevention and reinforcement technology, many dam panels, spillways and drainage tunnel concrete bases have defects to varying degrees after years of operation. In order to ensure the overall stability of the concrete structure, the eroded concrete base needs to be repaired and treated with anti-abrasion treatment.

[0003] When repairing and resisting the erosion of concrete, the flatness of the concrete surface is very important. A flat surface has less friction and stronger resistance to erosion and wear. And when performing anti-erosion treatment, a flat surface saves more materials and has better treatment effect.

[0004] However, in current construction, the flatness measurement method is mainly visual estimation or manual measurement using a ruler and a feeler gauge. The above two methods have large measurement errors, are time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a concrete base surface flatness measuring device, which can solve the problem that the existing manual measurement of concrete base surface flatness has large errors and is time-consuming and labor-intensive.

[0006] To this end, the utility model adopts the following technical solutions:

[0007] A concrete base surface flatness measuring device comprises a frame structure, a support structure with adjustable height is fixed below the frame structure, the bottom surface of the support structure is placed on the concrete base surface, a distance measuring mechanism is slidably connected in the frame structure, the distance measuring mechanism can move forward and backward along the length direction of the frame structure, scale lines are provided in the length direction of the frame structure, a hollow area is provided in the length direction of the frame structure, the distance measuring mechanism comprises a distance meter, the distance meter is located in the hollow area of ​​the frame structure, and the distance meter is used to measure the vertical distance between the distance meter and the concrete base surface.

[0008] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0009] The supporting structure includes a plurality of first lifting components and a second lifting component, wherein the first lifting components are threadedly connected to the second lifting components.

[0010] The distance measuring mechanism comprises a movable push plate, and the distance meter is fixed in the middle of the movable push plate.

[0011] The frame structure includes tracks located on the left and right sides of the rangefinder, respectively. The ends of the two tracks are fixedly connected by a connecting rod 27. The hollow area is located between the two tracks. The two ends of the movable push plate are slidably connected to the tracks.

[0012] The track includes a base plate, a clamping plate structure is fixed in the length direction of the base plate, the clamping plate structure includes a first clamping plate fixed to the outer side of the base plate and a second clamping plate fixed to the inner side of the base plate, a plurality of rolling members are connected between the first clamping plate and the second clamping plate, the height of the second clamping plate is not higher than the rolling member, the height of the first clamping plate is higher than the movable push plate, a top plate is fixed on the top of the first clamping plate, the movable push plate is located between the top plate and the rolling member, and the movable push plate is placed on the rolling member.

[0013] The scale lines are arranged on the surface of the top plate.

[0014] A leveling structure is fixed on one side of the top plate, and a leveling bubble which can be displaced in the leveling structure is arranged in the leveling structure.

[0015] The rolling element comprises an inner shaft for connecting the first clamping plate and the second clamping plate at two sides, an outer shaft is sleeved on the outer surface of the inner shaft, and a plurality of balls are arranged between the inner shaft and the outer shaft.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects: by adjusting the first lifting component and the second lifting component of the supporting structure, the frame structure is ensured to be parallel to the concrete base surface; by pushing the distance meter to measure the vertical distance (i.e., the level height) between it and the concrete base surface at different positions and drawing a relationship diagram between different positions and the level height, the flatness of the measured concrete base surface is intuitively presented; the uneven position is analyzed in combination with the scale line to guide the next step of construction, with small errors and time and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model after the top plate is removed.

[0019] Figure 3 It is a schematic diagram of the connection between the first lifting component and the second lifting component of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the rolling element of the utility model.

[0021] Figure 5 The figure is a schematic diagram of surveying and mapping the measurement results of the rangefinder according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation scheme of the present utility model is described below in conjunction with specific embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent elements with the same or similar functions. However, it should be understood that the accompanying drawings are only used for illustrative purposes and cannot be understood as limitations on the present utility model. In order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted, and the positional relationship described in the accompanying drawings is only used for illustrative purposes and cannot be understood as limitations on the present utility model.

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0024] The utility model provides a concrete base surface flatness measuring device, comprising a frame structure 2, a support structure 1 with adjustable height is fixed below the frame structure 2, the bottom surface of the support structure 1 is placed on the concrete base surface, a distance measuring mechanism 3 is slidably connected in the frame structure 2, the distance measuring mechanism 3 can move forward and backward along the length direction of the frame structure 2, a scale line 261 is provided in the length direction of the frame structure 2, a hollow area 28 is provided in the length direction of the frame structure 2, the distance measuring mechanism 3 comprises a distance meter 32, the distance meter 32 is located in the hollow area 28 of the frame structure 2, and the distance meter 32 is used to measure the vertical distance between the distance meter 32 and the concrete base surface.

[0025] In this embodiment, the rangefinder 32 is a laser rangefinder.

[0026] The supporting structure 1 includes a plurality of first lifting components 11 and second lifting components 12 , and the first lifting components 11 and the second lifting components 12 are threadedly connected.

[0027] like Figure 1 and Figure 3 As shown, in this embodiment, the support structure 1 includes four first lifting components 11 and second lifting components 12 respectively arranged at the four corners of the frame structure 2, wherein the upper part of the first lifting component 11 is provided with an external thread, the lower end of the first lifting component 11 has a round table seat placed on the concrete base surface, the lower part of the second lifting component 12 is provided with an internal thread matching the first lifting component 11, and the upper end of the second lifting component 12 is fixedly connected to the frame structure 2.

[0028] The distance measuring mechanism 3 comprises a movable push plate 31 , and a distance meter 32 is fixed in the middle of the movable push plate 31 .

[0029] The frame structure 2 includes tracks 23 located on the left and right sides of the rangefinder 32 , respectively. The ends of the two tracks 23 are fixedly connected by a connecting rod 27 . The hollow area 28 is located between the two tracks 23 . The two ends of the movable push plate 31 are slidably connected in the tracks 23 .

[0030] The track 23 includes a bottom plate 25, and a clamping plate structure is fixed in the length direction of the bottom plate 25. The clamping plate structure includes a first clamping plate 21 fixed to the outer side of the bottom plate 25 and a second clamping plate 22 fixed to the inner side of the bottom plate 25. A plurality of rolling members 24 are connected between the first clamping plate 21 and the second clamping plate 22. The height of the second clamping plate 22 is not higher than the rolling member 24. The height of the first clamping plate 21 is higher than the moving push plate 31. A top plate 26 is fixed on the top of the first clamping plate 21. The moving push plate 31 is located between the top plate 26 and the rolling member 24. The moving push plate 31 is placed on the rolling member 24.

[0031] The surface of the top plate 26 is provided with scale lines 261 . In this embodiment, the scale lines 261 are accurate to 1 mm.

[0032] A leveling structure 29 is fixed to one side of the top plate 26 , and a leveling bubble 291 that can be displaced within the leveling structure 29 is disposed within the leveling structure 29 .

[0033] The rolling element 24 includes an inner shaft 241 for connecting the first clamping plate 21 and the second clamping plate 22 at two sides. An outer shaft 242 is sleeved on the outer surface of the inner shaft 241 . A plurality of balls 243 are arranged between the inner shaft 241 and the outer shaft 242 .

[0034] In this embodiment, the ball 243 is a solid steel ball.

[0035] The workflow of this utility model is as follows:

[0036] First, place the device at the position to be measured on the concrete base surface, and observe whether the level bubble 291 is at the center position of the level structure 29. If it is at the center position, there is no need to adjust the support structure 1.

[0037] If the level bubble 291 is not at the center of the level structure 29 , the first lifting component 11 at a specific position is rotated according to the position of the level bubble 291 , and the level bubble 291 is placed at the center of the level structure 29 by adjusting the support structure 1 .

[0038] Turn on the distance meter 32 and push it along the length direction of the frame structure 2 at a constant speed to measure the vertical distance between it and the concrete base surface at different times and positions, that is, the level height. By drawing with software (origin2018 can be used), the following can be obtained: Figure 5 Flatness measurement diagram shown.

[0039] Finally, locate the specific location of the convex or concave concrete base surface according to the data map, and contact the operator to grind or backfill. If necessary, the flatness of the repaired concrete base surface can be measured again, and the above operation process can be repeated until the data map meets the construction requirements.

[0040] According to the description and drawings of the present invention, a person skilled in the art can easily manufacture or use the concrete base surface flatness measuring device of the present invention, and can produce the positive effects recorded in the present invention.

[0041] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two mechanisms, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0042] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the mechanism or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are also used only for the simplicity of description, and do not indicate or imply relative importance.

[0043] Furthermore, in practicing the claims of the present invention, those skilled in the art may understand and affect variations to the disclosed embodiments by studying the drawings, disclosure, and appended claims. In addition, in the claims and the specification, words such as "comprises", "comprising", etc. do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0044] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. A concrete base surface flatness measuring device, characterized in that: The invention comprises a frame structure (2), wherein a support structure (1) with adjustable height is fixed below the frame structure (2), the bottom surface of the support structure (1) is placed on a concrete base surface, a distance measuring mechanism (3) is slidably connected inside the frame structure (2), the distance measuring mechanism (3) can move forward and backward along the length direction of the frame structure (2), the length direction of the frame structure (2) is provided with scale lines (261), the length direction of the frame structure (2) is provided with a hollow area (28), the distance measuring mechanism (3) comprises a distance meter (32), the distance meter (32) is located at the hollow area (28) of the frame structure (2), and the distance meter (32) is used to measure the vertical distance between the distance meter and the concrete base surface.

2. A concrete base surface flatness measuring device as claimed in claim 1, characterized in that: The support structure (1) comprises a plurality of first lifting components (11) and second lifting components (12), wherein the first lifting components (11) are threadedly connected to the second lifting components (12).

3. A concrete base surface flatness measuring device as claimed in claim 1, characterized in that: The distance measuring mechanism (3) comprises a movable push plate (31), and the distance meter (32) is fixed in the middle of the movable push plate (31).

4. A concrete base surface flatness measuring device as claimed in claim 3, characterized in that: The frame structure (2) comprises tracks (23) respectively located on the left and right sides of the rangefinder (32), the ends of the two tracks (23) are fixedly connected via a connecting rod (27), the hollow area (28) is located between the two tracks (23), and the two ends of the movable push plate (31) are respectively slidably connected in the tracks (23).

5. A concrete base surface flatness measuring device as claimed in claim 4, characterized in that: The track (23) comprises a bottom plate (25), a clamping plate structure is fixed to the bottom plate (25) in the length direction, the clamping plate structure comprises a first clamping plate (21) fixed to the outside of the bottom plate (25) and a second clamping plate (22) fixed to the inside of the bottom plate (25), a plurality of rolling elements (24) are connected between the first clamping plate (21) and the second clamping plate (22), the height of the second clamping plate (22) is not higher than the rolling element (24), the height of the first clamping plate (21) is higher than the movable push plate (31), a top plate (26) is fixed on the top of the first clamping plate (21), the movable push plate (31) is located between the top plate (26) and the rolling element (24), and the movable push plate (31) is placed on the rolling element (24).

6. A concrete base surface flatness measuring device as claimed in claim 5, characterized in that: The surface of the top plate (26) is provided with the scale lines (261).

7. A concrete base surface flatness measuring device as claimed in claim 5, characterized in that: A leveling structure (29) is fixed to one side of the top plate (26), and a leveling bubble (291) that can be displaced within the leveling structure (29) is provided within the leveling structure (29).

8. A concrete base surface flatness measuring device as claimed in claim 5, characterized in that: The rolling element (24) comprises an inner shaft (241) for connecting a first clamping plate (21) and a second clamping plate (22) on two sides; an outer shaft (242) is sleeved on the outer surface of the inner shaft (241); and a plurality of balls (243) are arranged between the inner shaft (241) and the outer shaft (242).

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