A cast-in-place concrete floor thickness control and measurement device

Abstract

The application provides a cast-in-place concrete floor thickness control and measuring device, which comprises a cylinder with a hollow structure inside; a first end cover is arranged at the upper end of the cylinder, and a plurality of first scale lines are arranged along the height direction of the cylinder; a fixed insertion hole is arranged at each first scale line; a plurality of second scale lines are arranged between adjacent two first scale lines; a notch groove is arranged along the height direction of the cylinder; a sliding thickness measuring assembly is arranged in the cylinder and can freely slide along the height direction of the cylinder; the upper side of the sliding thickness measuring assembly is connected with the first end cover through a first elastic piece, and the lower side of the sliding thickness measuring assembly is connected with a measuring rod; a telescopic elastic piece is connected to the sliding thickness measuring assembly, one end of the telescopic elastic piece can be inserted into the fixed insertion hole; and a measuring plate is connected to the lower end of the cylinder. The measuring device has small measurement error, high precision and good control effect.

Description

Technical Field

[0001] This application belongs to the field of building construction technology, and more specifically, relates to a device for controlling and measuring the thickness of cast-in-place concrete floor slabs. Background Technology

[0002] According to structural design requirements, cast-in-place concrete floor slab structures in industrial and civil building projects often have various floor slab thicknesses while meeting safety and economic conditions. During construction, uneven floor slab thickness and thickness deviations exceeding the allowable range often occur, leading to engineering quality and structural safety issues.

[0003] Traditional slab thickness control measures mainly include using slab thickness control cards and the string line method. However, building construction projects often have many floors and large areas, and the slab thickness varies depending on the usage scenario. This requires a large number of slab thickness control cards of different models and specifications. Furthermore, the positions of the slab thickness control cards are relatively fixed, making it difficult to flexibly control the slab thickness at various locations, resulting in unsatisfactory slab thickness control effects. The string line method involves marking elevation control lines on wall and column reinforcement or formwork, and then measuring and controlling the slab thickness by stringing a line between two elevation control lines. This method is also limited by the position of wall and column reinforcement and formwork, resulting in relatively limited measurement points. Additionally, the line may be stretched and deformed, leading to large measurement errors, low accuracy, and poor control effects. Summary of the Invention

[0004] The purpose of this application is to provide a device for controlling and measuring the thickness of cast-in-place concrete floor slabs, so as to solve the technical problem that the thickness control effect of existing technologies is not ideal.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a device for controlling and measuring the thickness of cast-in-place concrete floor slabs, comprising:

[0006] The cylinder has a hollow interior; a first end cap is provided at the upper end of the cylinder; multiple first scale lines are provided along the height direction of the cylinder; a fixed insertion hole is provided at each of the first scale lines; multiple second scale lines are provided between two adjacent first scale lines; and a notch is provided along the height direction of the cylinder.

[0007] A sliding thickness measuring component is disposed within the cylinder and can slide freely along the height direction of the cylinder; the upper side of the sliding thickness measuring component is connected to the first end cap via a first elastic element, and a measuring rod is connected to the lower side of the sliding thickness measuring component; a telescopic elastic element is connected to the sliding thickness measuring component, and one end of the telescopic elastic element can be inserted into the fixed insertion hole; and,

[0008] A measuring plate is connected to the lower end of the cylinder;

[0009] When the first elastic element is in a naturally stretched state, the lower end of the measuring rod and the lower side of the measuring plate are on the same horizontal plane.

[0010] Furthermore, the sliding thickness measuring component includes:

[0011] The first support plate is connected to the first end cap via the first elastic element on its upper side; the first support plate is connected to the telescopic elastic element.

[0012] Second support plate;

[0013] The second elastic element has its two ends connected to the lower side of the first support plate and the upper side of the second support plate, respectively; and,

[0014] A detachable insert plate, the two ends of which are movably connected to the lower side of the first support plate and the upper side of the second support plate, respectively;

[0015] The upper end of the measuring rod is connected to the second support plate.

[0016] Furthermore, the sliding thickness measuring assembly also includes a first connecting rod and a mounting plate. The upper end of the first connecting rod is connected to the lower side of the second support plate, and the lower end of the first connecting rod is connected to the upper side of the mounting plate. The measuring rod is connected to the lower side of the mounting plate.

[0017] Furthermore, slots are provided on the lower side of the first support plate and the upper side of the second support plate, and the upper and lower sides of the detachable insert plate are inserted into the slots.

[0018] Furthermore, the second support plate is provided with an indicator rod on the side facing the notch, and the two ends of the indicator rod extend out of the outer surface of the cylinder.

[0019] Furthermore, the lower end of the cylinder is provided with a second end cap, which has a through hole, and one end of the measuring rod can pass through the through hole and extend out of the through hole.

[0020] Furthermore, there are three measuring rods, which are arranged symmetrically about the central axis of the cylinder.

[0021] Furthermore, the telescopic elastic element includes a spring clip and a semi-circular button connected to the spring clip. One end of the spring clip is connected to the sliding thickness measuring assembly, and the semi-circular button can be inserted into the fixed socket.

[0022] Furthermore, a handle is attached to the first end cap.

[0023] Furthermore, the handle is connected to the first end cap via a second connecting rod, and a bubble level is provided on the handle.

[0024] Compared with the prior art, this application has the following technical effects:

[0025] This application discloses a device for controlling and measuring the thickness of cast-in-place concrete slabs. A sliding thickness measuring component is pushed downwards to the corresponding slab thickness position via a notch or groove along the height of the cylindrical body. This causes a measuring rod connected to the sliding thickness measuring component to extend a corresponding length beyond the measuring plate. The sliding thickness measuring component is fixed at a specific height on the cylindrical body through the interlocking of a telescopic elastic element on the sliding thickness measuring component and a fixed insertion hole on the cylindrical body. This allows for the measurement of the thickness of different cast-in-place concrete slabs. The device is simple to operate and has a wider range of applications. Compared to traditional string methods and slab thickness control cards, it has smaller measurement errors, higher accuracy, and better control effects. It allows for flexible control of the slab thickness at various positions and avoids the extensive use of slab thickness control cards. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the overall structure of a cast-in-place concrete floor slab thickness control and measurement device provided in this application embodiment;

[0028] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0029] Figure 3 for Figure 1 A partial structural diagram of the sliding thickness measuring component;

[0030] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point B;

[0031] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0032] Figure 6 for Figure 1 A frontal view of the structure.

[0033] The following are the labeling elements in the figure:

[0034] 1. Bubble level; 2. Handle; 3. Second connecting rod; 4. Cylinder; 5. Fixing hole; 6. First connecting rod; 7. Measuring rod; 8. Measuring plate; 9. Mounting plate; 10. First elastic element; 11. First support plate; 12. Spring clip; 13. Second support plate; 14. Second elastic element; 15. Insert plate; 16. Hemispherical button; 17. Sliding thickness measuring assembly; 18. Indicator rod; 401. First end cap; 402. Notch; 403. Second end cap. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] It should be understood that the terms "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application.

[0038] Furthermore, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," "fourth," or "fifth" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] Please refer to the following: Figures 1-6 The present application will now describe a device for controlling and measuring the thickness of cast-in-place concrete floor slabs according to an embodiment.

[0040] In one embodiment of this application, a cast-in-place concrete slab thickness control and measurement device includes a cylinder 4, a sliding thickness measuring component 17, and a measuring plate 8. The cylinder 4 has a hollow internal structure, and a first end cap 401 is provided at the upper end of the cylinder 4. Multiple first scale lines are provided along the height direction of the cylinder 4; a fixed insertion hole 5 is provided at each first scale line; multiple second scale lines are provided between two adjacent first scale lines; a notch 402 is provided along the height direction of the cylinder 4; the sliding thickness measuring component 17 is disposed inside the cylinder 4 and can slide freely along the height direction of the cylinder 4; the upper side of the sliding thickness measuring component 17 is connected to the first end cap 401 through a first elastic member 10, and a measuring rod 7 is connected to the lower side of the sliding thickness measuring component 17; a telescopic elastic member is connected to the sliding thickness measuring component 17, and one end of the telescopic elastic member can be inserted into the fixed insertion hole 5; the measuring plate 8 is connected to the lower end of the cylinder 4; when the first elastic member 10 is in a naturally stretched state, the lower end of the measuring rod 7 and the lower side of the measuring plate 8 are on the same horizontal plane.

[0041] In this embodiment, the cylinder 4 can be a hollow cylinder, the distance between two adjacent first scale lines can be set to 1 cm, the distance between two adjacent second scale lines can be set to 1 mm, and the measuring plate 8 can be a circular plate with a certain thickness disposed on the outer surface of the cylinder 4. The first elastic element 10 can be a spring.

[0042] In this embodiment, one end of the telescopic elastic member can be inserted into the fixed insertion hole 5. When it is necessary to fix the sliding thickness measuring component 17 at a specific height inside the cylinder 4, one end of the telescopic elastic member is inserted into the fixed insertion hole 5 to complete the fixation. When it is not necessary to fix the sliding thickness measuring component 17, that is, when it is necessary for the sliding thickness measuring component 17 to slide freely inside the cylinder 4, the outer surface of the fixed insertion hole 5 can be blocked by hand or the end of the telescopic elastic member protruding into the fixed insertion hole 5 can be pressed into the cylinder 4 to retract it inward, so that one end of the telescopic elastic member cannot be inserted into the fixed insertion hole 5. In this way, combined with manually pushing and pulling the sliding thickness measuring component 17 downward, the sliding thickness measuring component 17 can slide freely inside the cylinder 4.

[0043] The cast-in-place concrete slab thickness control and measurement device of this application operates as follows when controlling the slab thickness: After determining that the thickness of the concrete slab to be poured is M, the sliding thickness measuring component 17 is pushed downward from the notch 402 on the side of the cylinder 4 of the device of this application embodiment. This causes the sliding thickness measuring component 17 to slide downward within the cylinder 4, thereby driving the measuring rod 7 to move downward. When the sliding thickness measuring component 17 slides downward a distance of M, one end of the telescopic elastic element on the sliding thickness measuring component is inserted into the fixing hole 5, thus fixing the sliding thickness measuring component at a specific height within the cylinder 4. At this time, the distance between the lower end of the measuring rod 7 and the lower side of the measuring plate 8 is also M. The device of this application embodiment is then vertically inserted into the unfinished concrete slab. At this time, there is still a certain distance between the lower side of the measuring plate 8 and the unfinished concrete surface. Pouring continues until the concrete surface reaches the position of the lower side of the measuring plate 8, thus completing the accurate control of the cast-in-place concrete slab thickness of the specific thickness M. It should be noted that when the device in this embodiment is not in use, the first elastic member 10 is in a naturally stretched state, the lower end of the measuring rod 7 and the lower side of the measuring plate 8 are on the same horizontal plane, and the sliding thickness measuring component 17 is located at the initial 0 scale line.

[0044] The cast-in-place concrete slab thickness control and measurement device of this application embodiment can be operated as follows when measuring the slab thickness: The sliding thickness measuring component 17 is pushed downwards from the notch 402 on the side of the device cylinder 4, causing it to slide downwards within the cylinder 4, thereby driving the measuring rod 7 downwards. When the sliding thickness measuring component 17 slides downwards a distance N (N is greater than the thickness of the slab to be measured), the device is vertically inserted into the freshly poured concrete slab. At this time, the lower side of the measuring plate 8 is higher than the surface of the poured concrete to be measured. Then, the sliding thickness measuring component 17 is pushed upwards until the lower side of the measuring plate 8 just contacts the surface of the poured concrete to be measured. The scale value of the sliding thickness measuring component 17 on the cylinder 4 is then read, which is the slab thickness value of the poured concrete to be measured.

[0045] An embodiment of this application discloses a cast-in-place concrete slab thickness control and measurement device. By pushing a sliding thickness measuring component 17 downwards to the corresponding slab thickness position through a notch 402 opened along the height direction of the cylinder 4, the measuring rod 7 connected to the sliding thickness measuring component 17 extends outwards from the measuring plate 8 by a corresponding length. The sliding thickness measuring component 17 is fixed at a specific height on the cylinder 4 through the cooperation and insertion between the telescopic elastic element on the sliding thickness measuring component 17 and the fixing insertion hole 5 on the cylinder 4. This allows for the measurement of the slab thickness of different cast-in-place concrete slabs. The device is simple to operate and has a wider range of applications. Compared to traditional string methods and slab thickness control cards, it has smaller measurement errors, higher accuracy, and better control effects. It can flexibly control the slab thickness at various positions and avoids the extensive use of slab thickness control cards.

[0046] In another embodiment of this application, the sliding thickness measuring assembly 17 includes a first support plate 11, a second support plate 13, a second elastic element 14, and a detachable insert plate 15. The upper side of the first support plate 11 is connected to the first end cap 401 via the first elastic element 10; a telescopic elastic element is connected to the first support plate 11; both ends of the second elastic element 14 are respectively connected to the lower side of the first support plate 11 and the upper side of the second support plate 13; both ends of the detachable insert plate 15 are respectively movably connected to the lower side of the first support plate 11 and the upper side of the second support plate 13; the upper end of the measuring rod 7 is connected to the second support plate 13. The second elastic element 14 can be a spring.

[0047] The first support plate 11 in this embodiment of the application is generally convex in shape, such as... Figure 3 As shown. When the thickness of the poured concrete slab is lower than the predetermined thickness value, the sliding thickness measuring component 17 of this application embodiment can accurately measure how much the current poured concrete thickness is lower than the predetermined thickness. Based on this accurate measurement value, the construction workers can guide the next construction plan, such as determining how much concrete is still needed and estimating the completion time. For example, if the predetermined thickness of the poured concrete slab is G, according to the above-mentioned slab thickness control operation, the first support plate 11 is pushed down to the elevation scale line of the cylinder at point G. Then, the device of this application embodiment is vertically inserted into the poured concrete slab. At this time, the lower surface of the measuring plate 8 is above the upper surface of the poured concrete slab. Then, remove the detachable insert plate 15 from the side notch 402 of the cylinder 4, and press the cylinder 4 down as a whole. Under the elastic force of the second elastic element 14, the second support plate 13 will move upward until the lower surface of the measuring plate 8 contacts the top surface of the poured concrete slab. Read the distance g that the second support plate 13 moves upward at this time. The thickness of the currently poured concrete slab is lower than the predetermined thickness value, which is g. The actual value of the thickness of the currently poured concrete slab is Gg.

[0048] The device in this application embodiment can accurately calculate the difference between the actual pouring thickness and the design thickness for cast-in-place concrete slabs with a pouring thickness lower than the design thickness, so that concrete workers can pour more accurately to achieve the design thickness.

[0049] Furthermore, the sliding thickness measuring assembly 17 in this embodiment also includes a first connecting rod 6 and a mounting plate 9. The upper end of the first connecting rod 6 is connected to the lower side of the second support plate 13, and the lower end of the first connecting rod 6 is connected to the upper side of the mounting plate 9. The measuring rod 7 is connected to the lower side of the mounting plate 9. The measuring rod 7 is indirectly driven to move up and down inside the cylinder 4 through the first connecting rod 6 and the mounting plate 9, which facilitates the smooth transmission of force and makes the sliding thickness measuring assembly 17 and the measuring rod 7 move up and down more smoothly inside the cylinder 4.

[0050] Furthermore, in this embodiment of the application, slots are provided on the lower side of the first support plate 11 and the upper side of the second support plate 13, and the upper and lower sides of the detachable insert plate 15 are inserted into the slots. The slot connection is simple and convenient, and the detachable insert plate 15 can be easily removed or reinstalled through the side notch 402 of the cylinder 4.

[0051] Furthermore, in this embodiment of the application, the second support plate 13 is provided with an indicator rod 18 on the side facing the notch 402, and both ends of the indicator rod 18 extend out of the outer surface of the cylinder 4, such as... Figure 1 , Figure 2 , Figure 6 As shown. The scale value at the second support plate 13 can be read more easily via the indicator rod 18.

[0052] Furthermore, in this embodiment, the lower end of the cylinder 4 is also provided with a second end cap 403, which has a through hole. One end of the measuring rod 7 can pass through the through hole and extend out of the through hole. By providing the second end cap 403, when the device of this embodiment is inserted into the poured concrete floor slab, the amount of concrete dust entering the device can be greatly reduced or prevented, thus reducing the impact on the device.

[0053] Furthermore, in this embodiment, three measuring rods 7 are provided, and the three measuring rods 7 are centrally symmetrical about the central axis of the cylinder 4. That is, the upper ends of the three measuring rods 7 of equal length are fixedly connected to the mounting plate 9, which is a circular thin plate of a certain thickness. The three measuring rods 7 are evenly distributed on the mounting plate 9, the lines connecting the measuring rods 7 to the center of the mounting plate 9 are of equal length, and the included angles formed by adjacent connecting lines are equal pairwise. The three measuring rods 7 are distributed in an equilateral triangle, and the ends of the three measuring rods 7 determine a unique plane. That is, the measuring plane is determined with the fewest measuring rods 7, and the overall stability of the device is improved due to the equilateral triangular distribution of the measuring rods 7. The diameter of the mounting plate 9 is approximately the same as the inner diameter of the cylinder 4, and it can slide up and down along the cylinder 4.

[0054] Correspondingly, the measuring plate 8 has three through holes that correspond one-to-one with the three measuring rods 7, and the measuring rods 7 can freely pass through the holes.

[0055] Furthermore, the telescopic elastic element in this embodiment includes a spring clip 12 and a semi-circular button 16 connected to the spring clip 12. One end of the spring clip 12 is connected to the sliding thickness measuring component 17. In this embodiment, trapezoidal spring clips 12 are symmetrically arranged on the left and right sides of the first support plate 11. One end of the spring clip 12 is connected to the first support plate 11, and the semi-circular button 16 can be inserted into the fixing hole 5. When the spring clip 12 is in its naturally extended state, the end of the semi-circular button 16 can be inserted into the fixing hole 5 to fix the sliding thickness measuring component 17. Pressing the semi-circular button 16 inward causes the spring clip 12 to retract inward, which can release the fixing of the sliding thickness measuring component 17, so as to push the sliding thickness measuring component 17 to slide up and down in the cylinder 4.

[0056] Furthermore, the first end cap 401 of this application embodiment is connected to a handle 2, which facilitates the taking out of the device of this application embodiment to perform control or measurement operations on the thickness of the poured concrete floor slab.

[0057] Furthermore, in this embodiment, the handle 2 is connected to the first end cap 401 via a second connecting rod 3. A bubble level 1 is mounted on the handle 2. The central axes of the second connecting rod 3, the cylinder 4, and the measuring plate 8 are on the same straight line. The bubble level 1 helps determine whether the lower end of the measuring rod 7 of the device in this embodiment is in contact with the horizontal template. The template can be adjusted according to the bubble level 1 to eliminate thickness measurement errors caused by template tilt, making the measurement results more accurate.

[0058] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cast-in-place concrete floor thickness control and measurement device, characterized by, The utility model relates to a slideable thickness measuring device, which comprises: a cylinder with a hollow structure; a first end cover is arranged at the upper end of the cylinder, and a plurality of first scale lines are arranged along the height direction of the cylinder; a fixed socket is arranged at each first scale line; a plurality of second scale lines are arranged between adjacent first scale lines; and a notch groove is arranged along the height direction of the cylinder; a slideable thickness measuring assembly is arranged in the cylinder and can freely slide along the height direction of the cylinder; the upper side of the slideable thickness measuring assembly is connected to the first end cover through a first elastic member, and a measuring rod is connected to the lower side of the slideable thickness measuring assembly; an elastic extension member is connected to the slideable thickness measuring assembly, and one end of the elastic extension member can be inserted into the fixed socket; the slideable thickness measuring assembly comprises: a first support plate, the upper side of which is connected to the first end cover through the first elastic member; the first support plate is connected to the elastic extension member; a second support plate; a second elastic member, the two ends of which are respectively connected to the lower side of the first support plate and the upper side of the second support plate; and a detachable plug-in plate, the two ends of which are respectively movably connected to the lower side of the first support plate and the upper side of the second support plate; the upper end of the measuring rod is connected to the second support plate; and a measuring flat plate is connected to the lower end of the cylinder; when the first elastic member is in a natural stretched state, the lower end of the measuring rod and the lower side of the measuring flat plate are in the same horizontal plane.

2. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 1, wherein, The slideable thickness measuring assembly further comprises a first connecting rod and a mounting disc, the upper end of the first connecting rod is connected to the lower side of the second support plate, the lower end of the first connecting rod is connected to the upper side of the mounting disc, and the measuring rod is connected to the lower side of the mounting disc.

3. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 1, wherein, The lower side of the first support plate and the upper side of the second support plate are both provided with a socket, and the upper and lower sides of the detachable plug-in plate are inserted into the socket.

4. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 1, wherein, The side of the second support plate facing the notch groove is provided with an indicating rod, and the two ends of the indicating rod protrude out of the outer surface of the cylinder.

5. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 1, wherein, The lower end of the cylinder is further provided with a second end cover, the second end cover is provided with a through hole, and one end of the measuring rod can pass through the through hole and protrude out of the through hole.

6. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 1, wherein, The measuring rod is provided with three, and the three measuring rods are centrally symmetrically arranged about the central axis of the cylinder.

7. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 1, wherein, The elastic extension member comprises a spring clamp and a semicircular button connected to the spring clamp, one end of the spring clamp is connected to the slideable thickness measuring assembly, and the semicircular button can be inserted into the fixed socket.

8. A cast-in-place concrete floor thickness control and measurement device as claimed in any one of claims 1 to 7, wherein, A handle is connected to the first end cover.

9. A cast-in-place concrete floor thickness control and measurement device as claimed in claim 8, wherein, The handle is connected to the first end cover through a second connecting rod, and the handle is provided with a bubble level.

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