Adjustable protective layer detection tool

Abstract

The utility model relates to an adjustable protective layer detection tool. The adjustable protective layer detection tool comprises an inner tube, the upper portion of the inner tube is provided with a graduated scale, the inner tube is movably sleeved with an outer tube, long notches are formed in the two sides of the inner tube and the two sides of the outer tube, the bottom of the long notch of the inner tube is vertically connected with a reset rod, and the top of the long notch of the outer tube is vertically connected with a fixing rod; wherein the end, away from the inner pipe, of the reset rod extends out of the long notch of the outer pipe and is in sliding contact with the long notch of the outer pipe, a spring is arranged between the reset rod and the fixing rod, and the outer pipe is sleeved with the spring. The scale marks arranged on the inner pipe of the adjustable protective layer detection tool are the measuring range of the detection tool, and a protective layer point position needing to be measured can be completed through up-and-down stretching of the detection device, so that working hours are effectively saved, and the construction progress is prevented from being influenced.

Description

Technical Field

[0001] This application relates to the technical field of protective layer detection, and particularly to an adjustable protective layer detection tool. Background Art

[0002] Reinforced concrete structures are widely used in the field of construction engineering. The control of the thickness of the steel bar protective layer plays an important role in the quality control of concrete structures. The steel bar protective layer has a great influence on the mechanical properties, durability, fire resistance, etc. of reinforced concrete structures, and is directly related to the safety and service life of buildings. It is very difficult to measure the bottom steel bar protective layer after the steel bars are tied and the formwork is installed for beams, slabs, foundations, etc.

[0003] In traditional technologies, the measurement operation of the bottom steel bar protective layer is usually completed by a quality inspector holding a steel tape measure. However, the method of manually holding a steel tape measure to measure the protective layer thickness takes a long time, and there are many points to be detected for cantilever large cover beams. As a result, the construction progress is affected. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides an adjustable protective layer detection tool.

[0005] To achieve the above object, this application is implemented through the following technical solutions:

[0006] An adjustable protective layer detection tool, the adjustable protective layer detection tool includes:

[0007] An inner tube with a scale on its upper part, an outer tube is movably sleeved on the inner tube, long slot openings are provided on both sides of the inner tube and the outer tube, a reset rod is vertically connected to the bottom of the long slot opening of the inner tube, and a fixed rod is vertically connected to the top of the long slot opening of the outer tube;

[0008] Among them, one end of the reset rod away from the inner tube extends outside the long slot opening of the outer tube and is in sliding contact with it. A spring is provided between the reset rod and the fixed rod, and the spring is sleeved on the outer tube.

[0009] Optionally, a handle is connected to the upper end of the inner tube extending outside the outer tube.

[0010] Optionally, a reference rod is vertically connected to the bottom of the outer tube.

[0011] Optionally, the inner tube is a steel tube with a diameter of Φ20mm.

[0012] Optionally, both the outer tube and the reference rod are steel tubes with a diameter of Φ25mm.

[0013] Optionally, the specifications of the long slot opening are: length 120mm, width 10mm.

[0014] Optionally, both the reset rod and the fixing rod are smooth round steel bars with a diameter of Φ4mm.

[0015] Advantages of the present application: The scale lines provided on the inner tube of the adjustable protective layer detection tool of the present application represent the measuring range of the detection tool. The position points of the protective layer to be measured can be completed by the up and down telescoping of the detection device, effectively saving working hours and avoiding affecting the construction progress.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By describing the exemplary embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present application will become more apparent. Among them, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0018] Figure 1 is a schematic structural diagram of the adjustable protective layer detection tool shown in the embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the scale on the inner tube shown in the embodiment of the present application.

[0020] Reference numerals: 1 inner tube, 2 outer tube, 3 reset rod, 4 fixing rod, 5 spring, 6 handle, 7 reference rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0025] In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0026] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0027] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0028] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings for the convenience of those skilled in the art to understand.

[0029] Embodiment 1:

[0030] Refer to Figure 1 and Figure 2 , an adjustable protective layer detection tool, and the adjustable protective layer detection tool includes:

[0031] An inner tube 1 with a scale on its upper part, an outer tube 2 is movably sleeved on the inner tube 1, long slot openings are provided on both sides of the inner tube 1 and the outer tube 2, a reset rod 3 is vertically connected to the bottom of the long slot opening of the inner tube 1, and a fixed rod 4 is vertically connected to the top of the long slot opening of the outer tube 2;

[0032] Wherein, one end of the reset rod 3 away from the inner tube 1 extends outside the long slot opening of the outer tube 2 and is in sliding contact with it, a spring 5 is provided between the reset rod 3 and the fixed rod 4, and the spring 5 is sleeved on the outer tube 2.

[0033] Specifically, the diameter of the inner tube 1 is smaller than that of the outer tube 2, and a steel tape measure is bonded to the upper part of the inner tube 1 as a scale; the ends of the reset rod 3 and the fixed rod 4 away from the inner tube 1 are flush, the reset rod 3 and the bottom of the long slot opening of the inner tube 1 are welded and fixed, and one end of the reset rod 3 away from the inner tube 1 extends outside the long slot opening of the outer tube 2 and is slidably connected to it, so that when the inner tube 1 moves up and down in the outer tube 2, the reset rod 3 follows the inner tube 1 to move up and down in the long slot opening of the outer tube 2; the spring 5 is sleeved on the outer tube 2, and the upper end of the spring 5 is fixedly connected to the reset rod 3, and the lower end is fixedly connected to the fixed rod 4. In this way, when the inner tube 1 moves downward, it pushes the spring 5 to stretch downward, and when the spring 5 resets, it drives the inner tube 1 to reset upward.

[0034] During use, the outer tube 2 is vertically placed on the bottom steel bars of the concrete structure to be detected, and the upper end of the inner tube 1 is pressed to make the inner tube 1 in vertical contact with the bottom formwork of the structure. At this time, due to the elastic action of the spring 5, the inner tube 1 will move up and down in the outer tube 2 until it reaches a stable state. Read the data on the scale of the inner tube 1, and this data represents the moving distance of the inner tube 1 relative to the outer tube 2. Check the specifications of the bottom steel bars on the design drawing, that is, the diameter of the steel bars, and subtract the diameter of the bottom steel bars from the data obtained by reading. The result obtained is the thickness of the protective layer. After the detection of the protective layer thickness is completed, take out the protective layer detection tool and prepare for the detection of the next position.

[0035] The scale line provided on the inner tube 1 of the adjustable protective layer detection tool of the present application is the measuring range of the detection tool, and the required protective layer points to be measured can be completed by the up and down telescoping of the detection device, effectively saving working hours and avoiding affecting the construction progress.

[0036] In addition, compared with the prior art, after the protective layer detection tool of the present application is put into use, the average detection time for a single pier cap is only 42 minutes. Before the development of the detection tool, when the quality inspector measured with a hand-held steel tape measure, the average detection time for a single pier cap was 90 minutes. The detection time of the pier cap protective layer has been significantly reduced, the detection efficiency has been greatly improved, the working hours have been saved, and the detection efficiency has been improved.

[0037] Embodiment 2:

[0038] See Figure 1 , based on Embodiment 1, optionally, the upper end of the inner tube 1 extends out of the outer tube 2 and is connected with a handle 6.

[0039] Optionally, a reference rod 7 is vertically connected to the bottom of the outer tube 2.

[0040] Optionally, the inner tube 1 is a steel pipe with a diameter of Φ20mm.

[0041] Optionally, both the outer tube 2 and the reference rod 7 are steel pipes with a diameter of Φ25mm.

[0042] Optionally, the specifications of the long slot are: length 120mm, width 10mm.

[0043] Optionally, both the reset rod 3 and the fixed rod 4 are smooth round steel bars with a diameter of Φ4mm.

[0044] Specifically, first, mark on the raw material according to the required length, and then use a grinding wheel for precise cutting to ensure that each part of the tool meets the design requirements. Then, use a grinding wheel to cut long slots with a specific length of 12 cm and a width of 1 cm on both sides of the inner and outer steel pipes. These long slots are used to fix the smooth round steel bars and the spring 5 later. Place the inner steel pipe inside the outer steel pipe. Weld and fix a smooth round steel bar to the bottom of the slot of the inner steel pipe, and weld and fix another smooth round steel bar to the top of the slot of the outer steel pipe. Place a spring 5 between the two smooth round steel bars. The spring 5 is sleeved on the outer tube 2, and its two ends are respectively welded and fixed to the two smooth round steel bars. In this way, the spring 5 forms an elastic connection, enabling the inner tube 1 to move up and down inside the outer tube 2. Weld a steel pipe with a diameter of Φ20mm to the top of the inner steel pipe as a handle for easy operation. Weld a steel pipe with a diameter of Φ25mm to the bottom of the outer steel pipe as the reference rod 7, which is used to make vertical contact with the steel bars at the bottom of the structure during detection. Paste a 100mm long steel tape measure to the top of the inner steel pipe as a scale for reading. This can intuitively display the moving distance of the inner tube 1 relative to the outer tube 2.

[0045] When conducting the detection, the reference rod 7 of the detection tool (i.e., the Φ25mm steel pipe at the bottom of the outer steel pipe) is vertically placed on the bottom steel bars of the concrete structure to be detected. Press the handle 6 to make the reference rod 7 in vertical contact with the bottom formwork of the structure. At this time, due to the elastic action of the spring 5, the inner tube 1 will move up and down within the outer tube 2 until it reaches a stable state. Read the data on the scale of the inner tube 1. This data represents the moving distance of the inner tube 1 relative to the outer tube 2. Check the specifications of the bottom steel bars on the design drawing, that is, the diameter of the steel bars. Subtract the diameter of the bottom steel bars from the read data, and the result is the thickness of the protective layer.

[0046] In this embodiment, by setting the handle 6, it is convenient to apply force. By setting the reference rod 7 as a reference, it avoids the large errors caused by the deformation of the steel coil during the measurement of the protective layer of the traditional bent cap, making the measurement data accurate.

[0047] In addition, this device is welded by steel pipes, steel bars and springs. The materials for making the tool are extremely easy to obtain, the price is low, the structure is relatively simple, the design for installation and disassembly is convenient, and it has high safety and strong practicability.

[0048] It should be noted that the structures and / or installation methods not elaborated in this application can be known to those skilled in the art by combining common general knowledge and / or existing technologies, and are not the key points of disclosure in this application, so no further elaboration will be made here.

[0049] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and not to limit them. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of this application; the dimensions of the drawings have nothing to do with the specific physical objects, and the physical dimensions can be changed arbitrarily.

Claims

1. An adjustable protective layer detection tool, characterized in that, The adjustable protective layer detection tool includes: An inner tube (1) with a scale on its upper part. An outer tube (2) is movably sleeved on the inner tube (1). Long slot openings are provided on both sides of the inner tube (1) and the outer tube (2). A reset rod (3) is vertically connected to the bottom of the long slot opening of the inner tube (1). A fixed rod (4) is vertically connected to the top of the long slot opening of the outer tube (2); Among them, one end of the reset rod (3) far from the inner tube (1) extends outside the long slot opening of the outer tube (2) and is in sliding contact with it. A spring (5) is provided between the reset rod (3) and the fixed rod (4), and the spring (5) is sleeved on the outer tube (2).

2. The adjustable protective layer detection tool according to claim 1, wherein, The upper end of the inner tube (1) extends outside the outer tube (2) and is connected with a handle (6).

3. The adjustable protective layer detection tool according to claim 1, wherein A reference rod (7) is vertically connected to the bottom of the outer tube (2).

4. The adjustable protective layer detection tool according to claim 1 or 2, characterized in that, The inner tube (1) is a steel pipe with a diameter of Φ20mm.

5. The adjustable protective layer detection tool according to claim 1 or 3, characterized in that, The outer tube (2) and the reference rod (7) are both steel pipes with a diameter of Φ25mm.

6. The adjustable protective layer detection tool according to claim 1, wherein, The specifications of the long slot opening are: length 120mm, width 10mm.

7. The adjustable protective layer detection tool according to claim 1, characterized in that The reset rod (3) and the fixed rod (4) are both round steel bars with a diameter of Φ4mm.

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