A concrete floor thickness detection device
By designing lifting and marking components, the problem of lacking detection point markings in traditional devices is solved, enabling height adjustment and automatic marking of the detector, thus improving the efficiency and accuracy of concrete slab thickness detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 17 BUREAU GRP
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional concrete slab thickness testing devices lack effective testing point marking functions, leading to delays in testing progress and an increased risk of recording errors.
A concrete floor slab thickness detection device was designed, which includes a lifting component and a marking component. The device uses a motor to drive a screw to lift the detector and uses a sponge to absorb pigment and leave marks on the floor slab surface, thereby achieving automatic marking of detection points.
It improves the applicability of the detector and the recognizability of the test results, enhances testing efficiency and convenience, and reduces the possibility of human error in recording.
Smart Images
Figure CN224455759U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering quality testing technology, and more specifically, it relates to a concrete floor slab thickness testing device. Background Technology
[0002] In the field of building construction quality inspection, floor slab thickness measuring devices are a commonly used quality inspection tool, widely applied in various building projects to measure the thickness of concrete floor slabs. This allows users to accurately obtain floor slab thickness data, thereby ensuring the safety and stability of building structures under different usage scenarios. However, traditional devices lack effective marking functions for inspection points, forcing staff to rely on memory or manual recording to mark the inspection locations after each inspection. This is not only time-consuming and labor-intensive but also prone to errors or omissions. In large-scale inspections, this method severely impacts work efficiency and delays the inspection progress. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a concrete slab thickness detection device, which solves the technical problem that traditional devices lack effective detection point marking functions, leading to delays in the detection process.
[0004] The purpose and effectiveness of this utility model's concrete floor slab thickness detection device are achieved through the following specific technical means:
[0005] A concrete slab thickness detection device includes a base plate and a base. The base plate is disposed on the base, and a lifting assembly is disposed on the base plate. The lifting assembly includes a motor. An installation groove is provided on the base plate, and the motor is engaged in the installation groove. A support plate is disposed on the installation groove, and a first support column and a second support column are disposed on the support plate. The second support column passes through the first support column, and a connecting frame is provided at the top of the second support column. An installation sleeve and a marking assembly are disposed on the connecting frame, and the marking assembly includes a support sleeve. The support sleeve is fitted over the installation sleeve, and a detector is disposed inside the installation sleeve. A top cover is provided on the connecting frame.
[0006] According to a preferred embodiment, the marking assembly further includes two sets of connecting rods and two sets of supporting rods. Connecting ears are provided on both sides of the supporting sleeve, and each connecting ear is connected to one end of a set of connecting rods. Through grooves are provided on both sides of the connecting frame, and the other end of the connecting rod passes through the through groove and is connected to one end of the supporting rod. Two sets of fixing rods are provided on the connecting frame, and sliding grooves are provided on the connecting rods. The fixing rods are sleeved in the sliding grooves.
[0007] According to a preferred embodiment, a sliding sleeve is fitted at the top of the second support column, and a set of support rods are respectively connected to both sides of the sliding sleeve. A lifting ring is provided at one end of the sliding sleeve, and the lifting ring is connected to the handle through a connecting rope. A slot is provided on the support sleeve, and a sponge is inserted into the slot. The sponge absorbs pigment.
[0008] According to a preferred embodiment, a spring is inserted inside the support sleeve, a retaining ring is provided on the connecting frame, a limiting groove is provided inside the support sleeve, the top of the spring is engaged in the retaining ring, and the bottom is engaged in the limiting groove.
[0009] According to a preferred embodiment, the lifting assembly further includes a lead screw, which passes through the first support column. A lead screw nut is provided at the bottom of the second support column, and the lead screw nut is sleeved on the lead screw. A fixing hole is provided on the support plate, and the bottom of the lead screw passes through the fixing hole. Helical gears are sleeved on both the motor shaft end and the bottom of the lead screw.
[0010] According to a preferred embodiment, a plurality of dampers are provided between the base plate and the base, a plurality of casters are provided under the base, and a plurality of triangular plates are provided on the base plate, with the vertical side of the triangular plate connected to the first support column.
[0011] According to a preferred embodiment, the top of the mounting sleeve is provided with an annular groove, and a rubber ring is fitted inside the annular groove.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model, through the setting of the lifting component, allows users to flexibly adjust the height of the detector according to the actual height of the concrete floor slab, thus improving the applicability of the device. After the motor is started, the motor drives the lead screw to rotate. The lead screw and lead screw nut cooperate, and the user can use this transmission method to push the second support column up and down within the first support column, enabling the user to accurately send the detector to the appropriate detection position, thereby improving the device's detection capability for floor slabs of different heights.
[0014] 2. When using this device, users can mark the detection points using the marking component, enabling them to quickly distinguish the detected areas and improving the recognizability of the device's detection results. Then, through the ink absorbed by the sponge inside the support sleeve, the device leaves clear marks on the floor surface, facilitating recording and subsequent review, thus providing convenience for users and enhancing the device's usability in actual operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0017] Figure 3 This is a planar view of the present invention;
[0018] Figure 4 This is an exploded view of the marking component.
[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0020] 11. Base plate; 12. Base; 13. Casters; 14. Damper; 15. Triangular plate; 16. Support plate; 17. Helical gear; 18. Motor; 19. Mounting slot; 21. Second support column; 22. Lead screw nut; 23. First support column; 24. Lead screw; 25. Handle; 26. Detector; 27. Connecting frame; 28. Top cover; 29. Rubber ring; 31. Mounting sleeve; 32. Sponge; 33. Support sleeve; 34. Spring; 35. Sliding sleeve; 36. Fixing rod; 37. Connecting rod; 38. Support rod. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example
[0022] like Figures 1 to 4 As shown, this utility model provides a concrete slab thickness detection device, including a base plate 11 and a base 12. The base plate 11 is placed on the base 12, providing basic support for the entire device. A lifting assembly is provided on the surface of the base plate 11, which plays a crucial role in the device's functionality. The lifting assembly includes a motor 18. A mounting groove 19 is pre-formed on the base plate 11, and the motor 18 is inserted into the mounting groove 19 for stable placement. Above the mounting groove 19, a support plate 16 is provided, providing a mounting platform for other components. A first support column 23 and a second support column 21 stand on the support plate 16. The second support column 21 can pass through the first support column 23, forming a telescopic structure. A connecting frame 27 is connected to the top of the second support column 21, serving as an integration frame for the components. An installation sleeve 31 and a marking assembly are installed on the connecting frame 27. The support sleeve 33 in the marking assembly is fitted onto the outside of the mounting sleeve 31, and the measuring instrument 26 is placed inside the mounting sleeve 31. The measuring instrument 26 can be a JY-LB900 floor slab thickness gauge, used to measure the floor slab thickness. A top cover 28 is provided on the top of the connecting frame 27 to provide some protection for the internal components.
[0023] like Figures 2 to 4 As shown, the marking assembly of this detection device, in addition to the support sleeve 33, includes two sets of connecting rods 37 and two sets of support rods 38. The support sleeve 33 has connecting ears on both sides, each ear connecting to one end of a set of connecting rods 37. The connecting frame 27 has through slots on both sides, through which the other ends of the connecting rods 37 pass and connect to one end of the support rods 38. The connecting frame 27 also has two sets of fixing rods 36. The connecting rods 37 have sliding grooves, in which the fixing rods 36 fit, supporting the connecting rods 37 and forming a lever structure.
[0024] A sliding sleeve 35 is fitted onto the top of the second support column 21, and each side of the sliding sleeve 35 is connected to a set of support rods 38. One end of the sliding sleeve 35 is equipped with a lifting ring, which is connected to a handle 25 via a connecting rope for easy lifting by the operator. Additionally, a slot is provided on the support sleeve 33, in which a sponge 32 is pre-absorbed with pigment and can be used to mark test points during the testing process.
[0025] A spring 34 is inserted inside the support sleeve 33. A retaining ring is located on the connecting frame 27, and a corresponding limiting groove is provided inside the support sleeve 33. The top of the spring 34 engages with the retaining ring, and the bottom engages with the limiting groove. The presence of the spring 34 allows the support sleeve 33 to move flexibly within a certain range and to automatically reset after being subjected to force.
[0026] like Figures 2 to 3 As shown, the lifting assembly of this device includes a lead screw 24 in addition to the motor 18. The lead screw 24 passes through the interior of the first support column 23, and a lead screw nut 22 is provided at the bottom of the second support column 21, which is fitted onto the lead screw 24. A fixing hole is provided on the support plate 16, and the bottom of the lead screw 24 passes through this fixing hole. Helical gears 17 are fitted on both the shaft end of the motor 18 and the bottom of the lead screw 24. Through the meshing of the helical gears 17, the rotation of the motor 18 can drive the lead screw 24 to rotate, thereby realizing the lifting and lowering of the second support column 21.
[0027] Multiple sets of dampers 14 are distributed between the base plate 11 and the base 12, which can reduce the vibration of the device during operation. Multiple sets of casters 13 are installed under the base 12 to facilitate the movement of the device on the construction site. At the same time, multiple sets of triangular plates 15 are provided on the base plate 11, and the vertical side of the triangular plates 15 is connected to the first support column 23, which enhances the stability of the first support column 23.
[0028] like Figure 4As shown, the top of the mounting sleeve 31 has an annular groove, and a rubber ring 29 is fitted into this annular groove. The rubber ring 29 can provide a certain buffering and fixing effect on the detector 26 placed in the mounting sleeve 31, preventing the detector 26 from being damaged when it comes into contact with the floor slab.
[0029] The specific usage and function of this embodiment are as follows:
[0030] When in use, the concrete slab thickness detection device is pushed and moved to the detection position by the casters 13 under the base 12. The motor 18 is started, and the helical gear 17 at the end of the motor 18 shaft drives the helical gear 17 at the bottom of the lead screw 24 to rotate, thereby rotating the lead screw 24. The lead screw nut 22 is fitted onto the lead screw 24, which drives the second support column 21 to move up and down within the first support column 23, realizing the lifting and lowering of the lifting assembly, and adjusting the detector 26 on the connecting frame 27 to a suitable detection height.
[0031] When the detector 26 contacts the floor slab to measure the thickness, the sponge 32 in the slot on the support sleeve 33 absorbs the pigment. During the test, the sliding sleeve 35 is pulled by the handle 25, which drives the support rod 38 and the connecting rod 37. The sponge 32 contacts the floor slab, leaving a mark on it for easy reference later, making the test operation more convenient. The damper 14 between the base plate 11 and the base 12 reduces the shaking of the device during the test. The triangular plate 15 is connected to the first support column 23, enhancing the stability of the overall structure and ensuring the smooth progress of the test. After the test is completed, the reverse motor 18 retracts the second support column 21, and the device moves to the next test position to continue working.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.
Claims
1. A concrete floor thickness detection apparatus, characterized by: The device includes a base plate (11) and a base (12). The base plate (11) is mounted on the base (12). A lifting assembly is mounted on the base plate (11), and the lifting assembly includes a motor (18). A mounting groove (19) is provided on the base plate (11), and the motor (18) is engaged in the mounting groove (19). A support plate (16) is provided on the mounting groove (19), and a first support column (23) and a second support column (21) are provided on the support plate (16). The second support column (21) is inserted inside the first support column (23). A connecting frame (27) is provided on the top of the second support column (21). An installation sleeve (31) and a marking component are provided on the connecting frame (27). The marking component includes a support sleeve (33). The support sleeve (33) is fitted outside the installation sleeve (31). A detector (26) is provided inside the installation sleeve (31). A top cover (28) is provided on the connecting frame (27).
2. The apparatus for detecting the thickness of a concrete floor slab according to claim 1, wherein: The marking assembly also includes two sets of connecting rods (37) and two sets of support rods (38). The support sleeve (33) has connecting ears on both sides, and each connecting ear is connected to one end of a set of connecting rods (37). The connecting frame (27) has through slots on both sides, and the other end of the connecting rod (37) passes through the through slot and is connected to one end of the support rod (38). The connecting frame (27) has two sets of fixing rods (36), and the connecting rods (37) have sliding grooves, and the fixing rods (36) are sleeved in the sliding grooves.
3. A device for detecting the thickness of a concrete floor slab according to claim 2, characterised in that: The top of the second support column (21) is fitted with a sliding sleeve (35), and the two sides of the sliding sleeve (35) are respectively connected to a set of support rods (38). One end of the sliding sleeve (35) is provided with a lifting ring, and the lifting ring is connected to the handle (25) through a connecting rope. The support sleeve (33) is provided with a slot, and a sponge (32) is inserted in the slot. The sponge (32) absorbs pigment.
4. The concrete floor slab thickness detection device according to claim 3, characterized in that: A spring (34) is inserted inside the support sleeve (33), a retaining ring is provided on the connecting frame (27), a limiting groove is provided inside the support sleeve (33), the top of the spring (34) is locked in the retaining ring, and the bottom is locked in the limiting groove.
5. The apparatus for detecting the thickness of a concrete floor slab according to claim 1, wherein: The lifting assembly also includes a lead screw (24), which is inserted into the first support column (23). The bottom of the second support column (21) is provided with a lead screw nut (22), which is sleeved on the lead screw (24). The support plate (16) has a fixing hole, and the bottom of the lead screw (24) is inserted into the fixing hole. The shaft end of the motor (18) and the bottom of the lead screw (24) are both sleeved with helical gears (17).
6. The apparatus for detecting the thickness of a concrete floor slab according to claim 1, wherein: Multiple sets of dampers (14) are provided between the base plate (11) and the base (12). Multiple sets of casters (13) are provided below the base (12). Multiple sets of triangular plates (15) are provided on the base plate (11). The vertical side of the triangular plate (15) is connected to the first support column (23).
7. The apparatus of claim 1, wherein: The top of the mounting sleeve (31) is provided with an annular groove, and a rubber ring (29) is fitted inside the annular groove.