A concrete thickness measuring tool
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广州广检建设工程检测中心有限公司
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-07
AI Technical Summary
[0005]为解决上述背景技术中提出的现有技术在实际使用过程中较为不便的问题,本实用新型提供如下技术方案:
[0016] This invention, through the design of the cylinder and round head, allows for quick and easy cleaning of the cylinder after concrete thickness measurement. Its simple structure reduces operating costs and simplifies operation, enabling rapid measurement of concrete thickness. In practical use, the first cover is moved away from the cylinder beforehand, and the cylinder is inserted into the concrete. The float, in conjunction with the connecting rod and the first cover, moves the sliding column upwards, allowing direct observation of the scale on the graduation plate for easy calculation of the concrete thickness.
Smart Images

Figure CN224608344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete thickness detection technology, and in particular to a concrete thickness measuring tool. Background Technology
[0002] In concrete construction, it is often necessary to measure the thickness of concrete using measuring tools to ensure that the concrete pouring thickness meets the required standards.
[0003] For example, Chinese patent application CN202222493334.X discloses a concrete thickness measuring tool. Its specific content is as follows: During use, the measuring personnel hold the tool handle, calibrate the horizontal limiting rods to ensure they are on the same plane, place the measuring tool perpendicular to the ground, quickly insert the horizontal limiting rods into the concrete, ensuring all three rods touch the bottom for horizontal limitation, press the rotary switch, and the battery is connected to the rotary motor via wires. The rotary motor drives the sleeve to rotate, and the sleeve, via a lead screw, drives the base downwards, ensuring the base is in close contact with the concrete surface. The thickness is observed on the scale of the horizontal limiting rods and the base, and the data is read. However, this method has the following technical problems:
[0004] The aforementioned structure, with its battery and motor, increases the overall weight of the device, making it inconvenient to carry and transport. It also makes the measurement structure more complex. If the battery runs out of power, the concrete thickness cannot be detected in time, affecting efficiency. Furthermore, in actual use, the lead screw is prone to getting contaminated with concrete and dust, causing jamming between the lead screw and the sleeve, resulting in damage to the measuring tool and rendering it unusable. As can be seen, the aforementioned structure is quite inconvenient in actual use. Utility Model Content
[0005] To address the inconvenience of the existing technology mentioned in the background section in practical use, this utility model provides the following technical solution:
[0006] A concrete thickness measuring tool, including a limiting cylinder;
[0007] The limiting cylinder is equipped with a detection structure for measuring the thickness of concrete.
[0008] The detection structure includes a sliding column, a scale plate is installed on the outside of the sliding column, the detection structure includes a floating ring for controlling the upward movement of the sliding column, a first cover is installed on the upper end of the sliding column, and an observation port is opened on one side of the first cover to facilitate observation of the scale plate.
[0009] Furthermore, the limiting cylinder includes a cylinder body, the bottom of which is machined with a round head, and the middle of the cylinder body is provided with a limiting hole for the extension and retraction of the sliding column.
[0010] Furthermore, limiting grooves are provided on both sides of the limiting hole, a magnetic block is installed on the top of the cylinder, and two handles are installed at the upper end of the cylinder to facilitate stabilizing the cylinder.
[0011] Furthermore, the upper end of the floating ring is equipped with multiple connecting rods, and the upper end of the sliding rod is installed at the lower end of the first cover. The two sides of the sliding column are equipped with sliding rods that slide within the limiting vertical groove, and one side of the sliding rod is equipped with multiple ball bearings.
[0012] Furthermore, a second magnetic block is installed at the upper end of the first cover, which is magnetically attracted to the first magnetic block.
[0013] Furthermore, a second cover is installed on the upper end of the first cover to limit the magnetic block two, and an observation port two is opened on one side of the second cover, which is aligned with the observation port one.
[0014] Furthermore, the second cover is equipped with multiple bolts on its edge to facilitate positioning of the second cover, and a bubble level is installed in the middle of the second cover.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention, through the design of the cylinder and round head, allows for quick and easy cleaning of the cylinder after concrete thickness measurement. Its simple structure reduces operating costs and simplifies operation, enabling rapid measurement of concrete thickness. In practical use, the first cover is moved away from the cylinder beforehand, and the cylinder is inserted into the concrete. The float, in conjunction with the connecting rod and the first cover, moves the sliding column upwards, allowing direct observation of the scale on the graduation plate for easy calculation of the concrete thickness. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the limiting cylinder of this utility model;
[0019] Figure 3 This is a schematic diagram of the detection structure of this utility model.
[0020] The following is a list of component names represented by the various reference numerals in the attached figures:
[0021] 100-Limiting cylinder, 101-Cylinder body, 102-Round head, 103-Limiting hole, 104-Limiting vertical groove, 105-Handle, 106-Magnetic block one, 200-Detection structure, 210-Floating ring, 211-Connecting rod, 220-Sliding column, 221-Sliding rod, 222-Ball bearing, 223-Scale plate, 224-First cover, 225-Magnetic block two, 226-Observation port one, 230-Second cover, 231-Observation port two, 232-Bolt, 233-Bubble level. Detailed Implementation
[0022] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.
[0023] Please see Figures 1-3 This utility model provides a concrete thickness measuring tool, including a limiting cylinder 100. The limiting cylinder 100 includes a cylinder body 101, and a round head 102 is machined at the bottom of the cylinder body 101. The round head 102 at the bottom of the cylinder body 101 facilitates rinsing of the cylinder body 101 and avoids the inconvenience of rinsing caused by the complex structure. When rinsing the cylinder body 101, concrete slurry can drip down through the round head 102.
[0024] A detection structure 200 for measuring concrete thickness is installed in the middle of the limiting cylinder 100. The detection structure 200 includes a sliding column 220, and a limiting hole 103 for the sliding column 220 to extend and retract is opened in the middle of the cylinder 101. Limiting vertical grooves 104 are opened on both sides of the limiting hole 103. A magnetic block 106 is fixedly installed on the top of the cylinder 101. Two handles 105 are fixedly installed at the upper end of the cylinder 101 to facilitate the stabilization of the cylinder 101. After the cylinder 101 is inserted into the concrete, the handles 105 can be held to straighten the cylinder 101 and make the cylinder 101 vertical.
[0025] The sliding column 220 has slide rods 221 fixedly installed on both sides, which slide within the limiting vertical groove 104. Multiple balls 222 are movably installed on one side of the slide rod 221. The balls 222 abut against the inner wall of one side of the limiting vertical groove 104, so that the sliding column 220 can move smoothly up and down within the limiting hole 103.
[0026] A first cover 224 is installed on the upper end of the sliding column 220, and the upper end of the sliding rod 221 is installed on the lower end of the first cover 224. A second magnetic block 225 is installed on the upper end of the first cover 224, which is magnetically attracted to the first magnetic block 106. Through the magnetic attraction between the first magnetic block 106 and the second magnetic block 225, the detection structure 200 can be firmly fixed on the limiting cylinder 100 when the present invention is not in use, and the detection structure 200 is not easy to detach from the limiting cylinder 100 during the transportation of the present invention.
[0027] The detection structure 200 includes a floating ring 210 for controlling the upward movement of the sliding column 220. Multiple connecting rods 211 are fixedly mounted on the upper end of the floating ring 210, and threaded holes are provided at the top of each connecting rod 211. Figure 3 It can be seen that a square block with a hole in the middle is installed on the edge of the first cover 224, and the connecting rod 211 is located at the bottom of the square block. The hole in the middle of the square block is aligned with the threaded hole at the top of the connecting rod 211.
[0028] A scale plate 223 is fixedly installed on the outside of the sliding column 220. The floating ring 210 floats on the top of the concrete. When the floating ring 210 moves up and down, it synchronously drives the first cover 224 to move up and down, so that the sliding column 220 drives the scale plate 223 to move up and down, thereby adjusting the distance between the first cover 224 and the cylinder 101. When the magnetic block 225 and the magnetic block 106 are magnetically attracted, the bottom of the first cover 224 is against the top of the cylinder 101. At this time, the bottom of the floating ring 210 is at a fixed distance from the bottom of the round head 102. The zero mark of the scale plate 223 is at the top of the scale plate 223. When the first cover 224 moves away from the top of the cylinder 101, the scale plate 223 is exposed. When the round head 102 is inserted into the bottom of the concrete, the scale plate 223 plus the original fixed value is the thickness of the concrete.
[0029] The first cover 224 has an observation port 226 on one side for easy observation of the scale plate 223. The upper end of the first cover 224 is equipped with a second cover 230 for limiting the magnetic block 225. The second cover 230 has an observation port 231 on one side that is aligned with the observation port 226. Both the observation port 226 and the observation port 231 are fan-shaped grooves. The scale plate 223 is located below the observation port 226. The edge of the second cover 230 is equipped with multiple bolts 232 for limiting the second cover 230. After the bolts 232 pass through the middle cavity of the block on the edge of the first cover 224, they are screwed into the threaded hole at the top of the connecting rod 211, thus fixing the second cover 230 onto the first cover 224 and simultaneously fixing the first cover 224 onto the top of the connecting rod 211. A bubble level 233 is installed in the middle of the second cover 230. The bubble level 233 makes it easy to observe whether the cylinder 101 is vertical, so that the float ring 210 is in a horizontal state during the test, avoiding the occurrence of measurement errors caused by the tilt of the cylinder 101.
[0030] When measuring the thickness of concrete, first cover 224 is lifted upwards beforehand to detach it from cylinder 101, preventing magnetic block 225 and magnetic block 106 from attracting each other. Then, cylinder 101 is inserted into the concrete, with float 210 at the top of the concrete. Hold handle 105 to straighten cylinder 101, so that the bubble inside bubble level 233 is in the middle of bubble level 233. At this time, cylinder 101 is in a vertical state. After observing the scale value on bubble level 233 through observation port 231 and observation port 226, the thickness of concrete can be calculated.
[0031] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.
Claims
1. A concrete thickness measuring tool, comprising a limiting cylinder (100), characterized in that: The limiting cylinder (100) is equipped with a detection structure (200) for measuring the thickness of concrete in the middle. The detection structure (200) includes a sliding column (220), a scale plate (223) is installed on the outside of the sliding column (220), the detection structure (200) includes a floating ring (210) for controlling the upward movement of the sliding column (220), a first cover (224) is installed on the upper end of the sliding column (220), and an observation port (226) is opened on one side of the first cover (224) to facilitate observation of the scale plate (223).
2. The concrete thickness measuring tool according to claim 1, characterized in that: The limiting cylinder (100) includes a cylinder body (101), the bottom of the cylinder body (101) is machined with a round head (102), and the middle part of the cylinder body (101) is provided with a limiting hole (103) for the extension and retraction of the sliding column (220).
3. The concrete thickness measuring tool according to claim 2, characterized in that: Limiting grooves (104) are provided on both sides of the limiting hole (103), a magnetic block (106) is installed on the top of the cylinder (101), and two handles (105) are installed on the upper end of the cylinder (101) to facilitate stabilizing the cylinder (101).
4. The concrete thickness measuring tool according to claim 3, characterized in that: The upper end of the floating ring (210) is equipped with multiple connecting rods (211), and the upper end of the sliding rod (221) is installed at the lower end of the first cover (224). The two sides of the sliding rod (220) are equipped with sliding rods (221) that slide in the limiting vertical groove (104), and one side of the sliding rod (221) is equipped with multiple balls (222).
5. A concrete thickness measuring tool according to claim 3, characterized in that: The upper end of the first cover (224) is equipped with a magnetic block two (225) that is magnetically attracted to the magnetic block one (106).
6. A concrete thickness measuring tool according to claim 5, characterized in that: The upper end of the first cover (224) is equipped with a second cover (230) for limiting the magnetic block (225). The second cover (230) has an observation port (231) on one side that is aligned with the observation port (226).
7. A concrete thickness measuring tool according to claim 6, characterized in that: The second cover (230) has multiple bolts (232) installed on its edge to facilitate the positioning of the second cover (230), and a bubble level (233) is installed in the middle of the second cover (230).
Citation Information
Patent Citations
Concrete thickness measuring tool
CN218628057U