Concrete floor thickness detection tool

Abstract

The application relates to the technical field of floor thickness detection, and particularly discloses a concrete floor thickness detection tool, which comprises a bottom plate, a detection mechanism arranged on the top of the bottom plate, and a troweling mechanism arranged on the top of the bottom plate and used for troweling the concrete surface; the detection mechanism comprises a transmission unit used for downhole detection of the concrete; the detection mechanism further comprises an auxiliary unit used for assisting the downhole detection; when the thickness of the concrete pouring floor is detected, the detection rod is rotated downward and deeply into the concrete for measurement by the transmission unit; compared with the mode of vertically inserting the detection rod under the general condition, the measurement of the rotated downward detection rod is more labor-saving, the concrete can be lifted up while the detection rod is rotated and deeply inserted downward, and compared with the vertical insertion detection, the method of the rotated and deeply inserted detection can reduce the extrusion of the concrete to the periphery.

Description

Technical Field

[0001] This invention relates to the field of floor slab thickness testing technology, specifically to tools for testing the thickness of concrete floor slabs. Background Technology

[0002] In concrete construction, errors in floor slab thickness are inevitable. Effectively controlling floor slab thickness is a challenge in concrete pouring. Inspecting floor slab thickness is one of the important means of evaluating the construction quality of concrete structures, ensuring that the floor slab thickness meets the requirements of design specifications and structural safety, and avoiding the impact on the floor slab's functionality and load-bearing capacity due to insufficient thickness.

[0003] However, in practice, when workers use testing devices to inspect poured concrete slabs, existing devices typically insert the testing rod vertically into the concrete, creating a hole at the insertion point. After testing, this hole needs to be backfilled, resulting in uneven concrete that hinders the smoothing of the concrete surface and makes backfilling difficult. Furthermore, it is inconvenient for workers to assist during backfilling and to smooth the concrete surface afterward. Therefore, we propose a concrete slab thickness testing tool. Summary of the Invention

[0004] The purpose of this invention is to provide a tool for detecting the thickness of concrete floor slabs, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concrete floor slab thickness detection tool, including a base plate, a detection mechanism on the top of the base plate, and a smoothing mechanism on the top of the base plate, the smoothing mechanism being used to smooth the concrete surface;

[0006] The detection mechanism includes a transmission unit, which is located on the top of the base plate and is used to detect the drilling depth of the concrete.

[0007] The testing mechanism also includes an auxiliary unit, which is located on top of the base plate and serves to assist in drilling and testing.

[0008] Preferably, the transmission unit includes a housing, which is fixedly mounted on the top of a base plate. A top plate is fixedly mounted on the top of the housing. A threaded rod is rotatably mounted on the inner wall of the top plate. A through pipe is fixedly mounted on the inner wall of the housing. A detection rod is sleeved on the surface of the threaded rod. A square rod is slidably mounted on the inner wall of the threaded rod. One end of the square rod is fixedly connected to the inner wall of the detection rod. An auger is fixedly mounted on the surface of the detection rod. A threaded collar is threadedly connected to the surface of the threaded rod. The bottom of the threaded collar is rotatably connected to one end of the detection rod. Two sliding blocks are fixedly mounted on the surface of the threaded collar. A sliding groove is formed on the inner wall of the through pipe. The inner wall of the sliding groove contacts the surface of the sliding block. A strong magnet is fixedly mounted on the top of the threaded collar. Two sliders are fixedly mounted on the inner wall of the housing. An iron slider that cooperates with the strong magnet is sleeved on the surface of the two sliders. The surface of the iron slider contacts the inner wall of the housing. A pointer is fixedly mounted on the surface of the iron slider. A scale line is provided on the surface of the housing. The pointer cooperates with the scale line.

[0009] Preferably, an extension plate is rotatably mounted on the inner wall of the top plate, the bottom of the extension plate is fixedly connected to one end of the threaded rod, and a crank handle is rotatably mounted on the surface of the extension plate.

[0010] Preferably, the auxiliary unit includes a tube, which is fixedly installed on the top of the base plate. A fixing block is fixedly installed on the surface of the tube, and the surface of the fixing block is fixedly connected to the surface of the shell. Two connecting pipes are fixedly connected to the surface of the tube, and one end of each of the two connecting pipes is fixedly connected to the inner cavity of the shell.

[0011] Preferably, a piston is slidably installed on the inner wall of the tube, and two buckles are fixedly installed on the top and bottom of the piston. A first connecting rope and a second connecting rope are fixedly connected to the surfaces of the two buckles respectively, and one end of the first connecting rope and the second connecting rope are fixedly connected to the surface of the sliding block.

[0012] Preferably, a first pulley is rotatably mounted on the inner wall of the tube, a second pulley is provided on the inner wall of the shell, the second pulley is rotatably connected to the inner wall of the through pipe, the surface of the first connecting rope is in contact with the surfaces of the first pulley and the second pulley respectively, a third pulley is provided on the inner wall of the tube, a fourth pulley is rotatably mounted on the inner wall of the shell, a guide wheel is rotatably mounted on the inner wall of the through pipe, and the surface of the second connecting rope is in contact with the surfaces of the third pulley, the fourth pulley and the guide wheel respectively.

[0013] Preferably, the first and second pulleys are made of stainless steel, and the third, fourth and guide wheels are also made of stainless steel.

[0014] Preferably, the smoothing mechanism includes a smoothing plate, which is disposed at the bottom of the base plate, and the top of the smoothing plate contacts the bottom of the base plate.

[0015] Preferably, two slide rods are fixedly installed on the inner wall of the base plate, and each slide rod has a movable block fitted on its surface, which is slidably connected to the inner wall of the base plate.

[0016] Preferably, the surface of the slide bar is fitted with two springs. One end of the spring is fixedly connected to the inner wall of the base plate, and the other end of the spring is fixedly connected to the surface of the moving block. A strip plate is fixedly installed on the top of the moving block, and a push handle is rotatably installed on the top of the strip plate. The connection between the push handle and the strip plate is rotatably connected by a rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention utilizes a transmission unit and an auxiliary unit in conjunction. When detecting the thickness of a poured concrete slab, the transmission unit rotates the detection rod downwards for measurement, making the measurement more labor-saving. Simultaneously, the rotating rod lifts the concrete, reducing the amount of concrete being squeezed outwards. The rotating insertion mechanism lifts a portion of the concrete, creating a hole at the insertion point for deeper detection. The lifted concrete is temporarily stored and backfilled into the hole when the detection rod retracts, effectively minimizing damage to the concrete during testing. The auxiliary unit further enhances the lifting of the concrete, using the suction generated by the piston movement. This makes the process more efficient, convenient, and accurate.

[0019] This invention incorporates a smoothing mechanism. After the holes generated during testing are filled with concrete, their surfaces become uneven. At this point, a smoothing plate is used to smooth the holes after the concrete has been filled, making the concrete surface smoother. This eliminates the need for other tools to smooth the concrete, improving testing efficiency and enabling timely repair of holes generated during testing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of the local structure at point A;

[0022] Figure 3 This is a schematic diagram of the structure of the shell and tube in this invention;

[0023] Figure 4 This is a schematic diagram of the slide bar and spring in this invention;

[0024] Figure 5 This is a schematic diagram of the threaded rod in this invention;

[0025] Figure 6This is a schematic diagram of the structure of the first connecting rope and the second connecting rope in this invention;

[0026] Figure 7 This is a schematic diagram of the detection rod and auger in this invention;

[0027] Figure 8 This is a schematic diagram of the square rod in this invention;

[0028] Figure 9 This is a schematic diagram of the sliding block and sliding groove in this invention.

[0029] In the diagram: 1. Base plate; 2. Detection mechanism; 3. Smoothing mechanism; 301. Smoothing plate; 302. Sliding rod; 303. Moving block; 304. Spring; 305. Strip plate; 306. Push handle; 307. Rotating shaft; 21. Transmission unit; 2101. Housing; 2102. Top plate; 2103. Threaded rod; 2104. Through pipe; 2105. Detection rod; 2106. Square rod; 2107. Screwdriver; 2108. Threaded collar; 2109. Sliding block; 2110. Sliding groove; 21 11. Powerful magnet; 2112. Sliding bar; 2113. Iron slider; 2114. Pointer; 2115. Extension plate; 2116. Crank handle; 2117. Connecting pipe; 22. Auxiliary unit; 2201. Tube; 2202. Fixing block; 2203. Piston; 2204. Buckle; 2205. First connecting rope; 2206. Second connecting rope; 2207. First pulley; 2208. Second pulley; 2209. Third pulley; 2210. Fourth pulley; 2211. Guide wheel. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0031] Please see Figure 1-9 The present invention provides a technical solution: a concrete floor slab thickness detection tool, including a base plate 1, a detection mechanism 2 provided on the top of the base plate 1, and a smoothing mechanism 3 provided on the top of the base plate 1, the smoothing mechanism 3 being used to smooth the concrete surface.

[0032] The detection mechanism 2 includes a transmission unit 21, which is located on the top of the base plate 1. The transmission unit 21 is used to detect the drilling depth of the concrete.

[0033] The testing mechanism 2 also includes an auxiliary unit 22, which is located on the top of the base plate 1 and serves to assist in the drilling testing.

[0034] As a further definition of the detection mechanism 2 of the present invention, the transmission unit 21 includes a housing 2101, which is fixedly installed on the top of the base plate 1. A top plate 2102 is fixedly installed on the top of the housing 2101. A threaded rod 2103 is rotatably installed on the inner wall of the top plate 2102. A through pipe 2104 is fixedly installed on the inner wall of the housing 2101. A detection rod 2105 is sleeved on the surface of the threaded rod 2103. A square rod 2106 is slidably installed on the inner wall of the threaded rod 2103. One end of the square rod 2106 is fixedly connected to the inner wall of the detection rod 2105. An auger 2107 is fixedly installed on the surface of the detection rod 2105. A threaded collar 2108 is threadedly connected to the surface of the threaded rod 2103. The bottom of the threaded collar 2108 is rotatably connected to one end of the detection rod 2105. A sliding block 2109 is fixedly installed on the surface of the threaded collar 2108. There are two blocks 2109. The inner wall of the through pipe 2104 is provided with a sliding groove 2110. The inner wall of the sliding groove 2110 is in contact with the surface of the sliding block 2109. A strong magnet 2111 is fixedly installed on the top of the threaded collar 2108. A slider 2112 is fixedly installed on the inner wall of the housing 2101. There are two sliders 2112. The surfaces of the two sliders 2112 are fitted with an iron slider 2113 that works with the strong magnet 2111. The surface of the iron slider 2113 is in contact with the inner wall of the housing 2101. A pointer 2114 is fixedly installed on the surface of the iron slider 2113. The surface of the housing 2101 is provided with scale lines. The pointer 2114 works with the scale lines. The transmission unit 21 causes the detection rod 2105 to rotate and move downward to measure. Compared with the usual method of inserting the detection rod 2105 vertically, the measurement is more labor-saving.

[0035] An extension plate 2115 is rotatably mounted on the inner wall of the top plate 2102. The bottom of the extension plate 2115 is fixedly connected to one end of the threaded rod 2103. A crank handle 2116 is rotatably mounted on the surface of the extension plate 2115. The crank handle 2116 and the extension plate 2115 facilitate the rotation of the threaded rod 2103, causing the threaded rod 2103 to drive the detection rod 2105 to move downward.

[0036] The specific implementation method of this embodiment is as follows: When detecting the thickness of the poured concrete floor slab, the base plate 1 is placed on the surface of the concrete, the trowel plate 301 contacts the concrete, and the crank handle 2116 is turned to drive the extension plate 2115 to rotate, thereby driving the threaded rod 2103 to rotate. The rotating threaded rod 2103 drives the threaded collar 2108 to move downward, which in turn causes the threaded collar 2108 to drive the detection rod 2105 to move downward into the concrete. When the threaded collar 2108 drives the detection rod 2105 downward, it causes the square rod 2106 to slide on the inner wall of the threaded rod 2103. Because the shape of the square rod 2106 allows the threaded rod 2103 to drive the detection rod 2105 to rotate, the threaded collar 2108 presses against the detection rod 2105 downward, and the square rod 2106 slides on the inner wall of the threaded rod 2103. The inner wall of rod 2103 slides downward, causing the detection rod 2105 to rotate downward. The auger 2107, in conjunction with the downward rotation of the detection rod 2105, lifts the concrete and temporarily stores it in the through pipe 2104. The sliding block 2109, in conjunction with the sliding groove 2110, guides the threaded collar 2108, ensuring greater stability during movement and allowing it to lock and move vertically. The powerful magnet 2111 works in conjunction with the iron slider 2113. When the detection rod 2105 moves downward, the powerful magnet 2111 drives the iron slider 2113 downward, causing the pointer 2114 to move downward, making it easier to observe the value and more efficient and convenient. The slider 2112 guides the iron slider 2113, allowing it to move only up and down. Example 2

[0037] Please see Figure 1-9 The present invention provides a technical solution: a tool for detecting the thickness of concrete floor slabs. The present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0038] As a further definition of the detection mechanism 2 of the present invention, the auxiliary unit 22 includes a tube 2201, which is fixedly installed on the top of the base plate 1. A fixing block 2202 is fixedly installed on the surface of the tube 2201. The surface of the fixing block 2202 is fixedly connected to the surface of the housing 2101. Two connecting pipes 2117 are fixedly connected to the surface of the tube 2201. One end of each of the two connecting pipes 2117 is fixedly connected to the inner cavity of the housing 2101. The fixing block 2202 plays a role in fixing the tube 2201, making it more stable during the detection process. The connecting pipes 2117 facilitate piston air extraction.

[0039] A piston 2203 is slidably installed on the inner wall of the tube 2201. Two retaining rings 2204 are fixedly installed on the top and bottom of the piston 2203. A first connecting rope 2205 and a second connecting rope 2206 are fixedly connected to the surfaces of the two retaining rings 2204, respectively. One end of each connecting rope is fixedly connected to the surface of the sliding block 2109. When the detection rod 2105 moves downward, the sliding block 2109 drives the piston 2203 to move upward within the tube 2201 via the first connecting rope 2205. Because the base plate 1 is placed on the surface of the concrete, and the concrete has not yet fully solidified, there is a certain closed space between the shell 2101 placed on the concrete surface and the tube 2201 and the concrete surface. At this time, the piston 2203 generates upward suction on the concrete, assisting the auger 2107 in lifting the concrete into the through pipe 2104.

[0040] A first pulley 2207 is rotatably mounted on the inner wall of the tube 2201, and a second pulley 2208 is provided on the inner wall of the housing 2101. The second pulley 2208 is rotatably connected to the inner wall of the through pipe 2104. The surface of the first connecting rope 2205 contacts the surfaces of the first pulley 2207 and the second pulley 2208 respectively. A third pulley 2209 is provided on the inner wall of the tube 2201, and a fourth pulley 2210 is rotatably mounted on the inner wall of the housing 2101. A guide wheel 2211 is rotatably mounted on the inner wall of the through pipe 2104. The surface of the second connecting rope 2206 contacts the surfaces of the third pulley 2209, the fourth pulley 2210, and the guide wheel 2211 respectively. Pulleys 2207 and 2208 make the first connecting rope 2205 and 2206 more stable during sliding and also act as guides to prevent them from falling off. When the detection rod 2105 moves upward, the sliding block 2109 pulls the second connecting rope 2206, causing the piston 2203 inside the tube 2201 to move downward, assisting the detection rod 2105 and the auger 2107 in backfilling the concrete in the through pipe 2104. At the same time, the third pulley 2209, the fourth pulley 2210, and the guide wheel 2211 make the first connecting rope 2205 and 2206 more stable during sliding and also act as guides to prevent them from falling off.

[0041] The first pulley 2207 and the second pulley 2208 are both made of stainless steel, as are the third pulley 2209, the fourth pulley 2210 and the guide wheel 2211. The stainless steel first pulley 2207, the second pulley 2208, the third pulley 2209, the fourth pulley 2210 and the guide wheel 2211 are more wear-resistant and corrosion-resistant.

[0042] The specific implementation of this embodiment is as follows: A fixing block 2202 is used to fix the tube 2201, making it more stable during the testing process and increasing stability. When the testing rod 2105 moves downwards, the sliding block 2109 drives the piston 2203 to move upwards inside the tube 2201 via the first connecting rope 2205. The base plate 1 is placed on the surface of the concrete, which is not yet fully solidified. A certain closed space exists between the shell 2101 placed on the concrete surface, the tube 2201, and the concrete surface. At this time, the piston 2203 moves upwards against the concrete... The concrete acts as a suction force, assisting the auger 2107 in lifting the concrete into the through pipe 2104. When the detection rod 2105 moves upward, the sliding block 2109 pulls the second connecting rope 2206, causing the piston 2203 inside the tube 2201 to move downward. This assists the detection rod 2105 and the auger 2107 in backfilling the concrete in the through pipe 2104. At the same time, the third pulley 2209, the fourth pulley 2210, and the guide wheel 2211 make the first connecting rope 2205 and the second connecting rope 2206 more stable during sliding and also play a guiding role to prevent them from falling off. Example 3

[0043] Please see Figure 1-9 The present invention provides a technical solution: a tool for detecting the thickness of concrete floor slabs. The present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0044] As a further definition of the smoothing mechanism 3 of the present invention, the smoothing mechanism 3 includes a smoothing plate 301, which is disposed at the bottom of the base plate 1, and the top of the smoothing plate 301 contacts the bottom of the base plate 1. By setting the smoothing plate 301, after the holes generated during the inspection are filled with concrete, their surfaces will become uneven. At this time, the smoothing plate 301 is used to smooth the holes after the concrete is filled, so that the concrete surface is smoother.

[0045] Two sliding rods 302 are fixedly installed on the inner wall of the base plate 1. A movable block 303 is sleeved on the surface of the sliding rod 302 and is slidably connected to the inner wall of the base plate 1. When the movable block 303 slides on the surface of the sliding rod 302, the movable block 303 drives the trowel 301 to slide on the surface of the concrete.

[0046] Two springs 304 are fitted onto the surface of the slide bar 302. One end of each spring 304 is fixedly connected to the inner wall of the base plate 1, and the other end is fixedly connected to the surface of the moving block 303. A strip plate 305 is fixedly mounted on the top of the moving block 303, and a push handle 306 is rotatably mounted on the top of the strip plate 305. The connection between the push handle 306 and the strip plate 305 is rotatably connected via a pivot 307. The reaction force generated by the springs 304 when the moving block 303 moves helps the smoothing plate 301 return to its original position. When smoothing, the user holds the push handle 306, supports the housing 2101, and pushes it forward. The pivot 307 facilitates the rotation of the push handle 306. When not in use, the push handle 306 is placed against the surface of the base plate 1 for easy storage.

[0047] The specific implementation method of this embodiment is as follows: By setting up a squeegee 301, after the holes generated by the user during inspection are filled with concrete, the surface will become uneven. At this time, the squeegee 301 is used to smooth the holes after the concrete is filled, making the concrete surface smoother. By setting up a slide bar 302, the moving block 303 slides on the surface of the slide bar 302. The moving block 303 drives the squeegee 301 to slide on the concrete surface. The reaction force generated by the spring 304 when the moving block 303 moves can help the squeegee 301 return to its original position. When smoothing, the user holds the push handle 306, supports the housing 2101 and pushes it forward. The rotating shaft 307 facilitates the rotation of the push handle 306. When not in use, the push handle 306 is attached to the surface of the base plate 1 for easy storage.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool for measuring the thickness of concrete floor slabs, including a base plate (1), characterized in that: The top of the base plate (1) is provided with a detection mechanism (2) and a smoothing mechanism (3). The smoothing mechanism (3) is used to smooth the concrete surface. The detection mechanism (2) includes a transmission unit (21), which is located on the top of the base plate (1). The transmission unit (21) is used to detect the drilling depth of the concrete. The testing mechanism (2) also includes an auxiliary unit (22), which is located on the top of the base plate (1) and serves to assist in the drilling testing. The transmission unit (21) includes a housing (2101), which is fixedly installed on the top of the base plate (1). A top plate (2102) is fixedly installed on the top of the housing (2101). A threaded rod (2103) is rotatably installed on the inner wall of the top plate (2102). A through pipe (2104) is fixedly installed on the inner wall of the housing (2101). A detection rod (2105) is sleeved on the surface of the threaded rod (2103). A square rod (2106) is slidably installed on the inner wall of the threaded rod (2103). One end of the square rod (2106) is fixedly connected to the inner wall of the detection rod (2105). An auger (2107) is fixedly installed on the surface of the detection rod (2105). A threaded collar (2108) is threadedly connected to the surface of the threaded rod (2103). The bottom of the threaded collar (2108) is rotatably connected to one end of the detection rod (2105). 08) has two sliding blocks (2109) fixedly installed on its surface. The inner wall of the through pipe (2104) has a sliding groove (2110) and the inner wall of the sliding groove (2110) is in contact with the surface of the sliding block (2109). A strong magnet (2111) is fixedly installed on the top of the threaded collar (2108). A slider (2112) is fixedly installed on the inner wall of the housing (2101). There are two sliders (2112). The surfaces of the two sliders (2112) are fitted with an iron slider (2113) that works with the strong magnet (2111). The surface of the iron slider (2113) is in contact with the inner wall of the housing (2101). A pointer (2114) is fixedly installed on the surface of the iron slider (2113). The surface of the housing (2101) is provided with scale lines. The pointer (2114) works with the scale lines. The auxiliary unit (22) includes a tube (2201), which is fixedly installed on the top of the base plate (1). A fixing block (2202) is fixedly installed on the surface of the tube (2201). The surface of the fixing block (2202) is fixedly connected to the surface of the shell (2101). Two connecting pipes (2117) are fixedly connected to the surface of the tube (2201). One end of each connecting pipe (2117) is fixedly connected to the inner cavity of the shell (2101). A piston (2203) is slidably installed on the inner wall of the tube (2201). A buckle (2204) is fixedly installed on the top and bottom of the piston (2203). There are two buckles (2204). The surfaces of the two buckles (2204) are respectively fixedly connected to a first connecting rope (2205) and a second connecting rope (2206). One end of each connecting rope (2206) is fixedly connected to the surface of the sliding block (2109). The inner wall of the tube (2201) is rotatably equipped with a first pulley (2207). The inner wall of the shell (2101) is provided with a second pulley (2208). The second pulley (2208) is rotatably connected to the inner wall of the through pipe (2104). The surface of the first connecting rope (2205) is in contact with the surfaces of the first pulley (2207) and the second pulley (2208) respectively. The inner wall of the tube (2201) is provided with a third pulley (2209). The inner wall of the shell (2101) is rotatably equipped with a fourth pulley (2210). The inner wall of the through pipe (2104) is rotatably equipped with a guide wheel (2211). The surface of the second connecting rope (2206) is in contact with the surfaces of the third pulley (2209), the fourth pulley (2210), and the guide wheel (2211) respectively.

2. The concrete slab thickness detection tool according to claim 1, characterized in that: An extension plate (2115) is rotatably mounted on the inner wall of the top plate (2102). The bottom of the extension plate (2115) is fixedly connected to one end of the threaded rod (2103). A crank (2116) is rotatably mounted on the surface of the extension plate (2115).

3. The concrete slab thickness detection tool according to claim 1, characterized in that: The first pulley (2207) and the second pulley (2208) are both made of stainless steel, and the third pulley (2209), the fourth pulley (2210) and the guide wheel (2211) are also made of stainless steel.

4. The concrete slab thickness detection tool according to claim 1, characterized in that: The smoothing mechanism (3) includes a smoothing plate (301), which is set at the bottom of the base plate (1), and the top of the smoothing plate (301) is in contact with the bottom of the base plate (1).

5. The concrete slab thickness detection tool according to claim 4, characterized in that: The inner wall of the base plate (1) is fixedly installed with two slide rods (302). The surfaces of the two slide rods (302) are fitted with moving blocks (303), which are slidably connected to the inner wall of the base plate (1).

6. The concrete slab thickness detection tool according to claim 5, characterized in that: A spring (304) is fitted on the surface of the slide bar (302). There are two springs (304). One end of the spring (304) is fixedly connected to the inner wall of the base plate (1), and the other end of the spring (304) is fixedly connected to the surface of the moving block (303). A strip plate (305) is fixedly installed on the top of the moving block (303). A push handle (306) is rotatably installed on the top of the strip plate (305). The connection between the push handle (306) and the strip plate (305) is rotatably connected by a rotating shaft (307).

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