Tool for detecting thickness and flatness of concrete structural slab

Abstract

A concrete structural slab thickness and flatness detection tool comprises a thickness measuring rod and a flatness measuring rod, an annular groove is formed in the side, close to the top, of the outer side wall of the thickness measuring rod in the circumferential direction, and the thickness measuring rod is divided into an upper limiting area and a lower thickness measuring area through the annular groove. A flatness measuring area is formed at the position where the annular groove is located, two storage grooves which are matched with the flatness measuring rod in size and are symmetrically distributed are formed in the thickness measuring rod in the axial direction, the storage grooves are communicated with the annular groove, a penetrating groove which is distributed in the radial direction and matched with the flatness measuring rod in width is formed in the top face of the thickness measuring rod, and the penetrating groove is communicated with the storage grooves. A limiting assembly matched with the flatness measuring rod is arranged at the position, where the containing groove is located, in the penetrating groove. The device is convenient to use, integrates two functions of thickness measurement and flatness measurement, is small in size, and is convenient to carry and store.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete measurement, in particular to a tool for detecting the thickness and flatness of a concrete structure plate. Background Art

[0002] Generally speaking, the traditional method of measuring the thickness of concrete buildings is that workers use the wire drawing method to measure on the surface when pouring concrete at the construction site (or in the prefabricated component factory). There are many undesirable factors in using this wire drawing method, such as: different reference points need to be marked each time it is used, and there is a lot of preliminary preparation work, which is not conducive to the simplification of the construction process. When using the wire drawing method, the distance between the reference points is not standardized. If it is too long, it will lead to inaccurate measurement. If the reference point is too short, it will be inconvenient to operate and not conducive to construction standardization. Therefore, it is necessary to develop a concrete structure slab thickness and flatness detection tool to solve the above problems. Utility Model Content

[0003] The utility model solves the shortcomings of the prior art and provides a concrete structure slab thickness and flatness detection tool which is easy to use and integrates two functions of thickness measurement and flatness measurement.

[0004] To achieve the above-mentioned purpose, the utility model firstly proposes a concrete structure plate thickness and flatness detection tool, including a thickness measuring rod and a flatness measuring rod, an annular groove is opened on the outer wall of the thickness measuring rod, near the top side, along the circumferential direction, the annular groove divides the thickness measuring rod into an upper limiting area and a lower thickness measuring area, the position where the annular groove is located forms a flatness measuring area, two symmetrically arranged receiving grooves matching the size of the flatness measuring rod are arranged in the thickness measuring rod along the axial direction, the receiving grooves are connected with the annular groove, a through groove arranged in the radial direction and matching the width of the flatness measuring rod is provided on the top surface of the thickness measuring rod, the through groove is connected with the receiving groove, and a limiting assembly matching the flatness measuring rod is provided in the through groove at the position where the receiving groove is located;

[0005] A positioning plate is installed on the thickness measuring rod outside the annular groove, and the positioning plate includes two semicircular ring blocks matching the annular groove. After the two semicircular ring blocks are installed in the annular groove, a spacing matching the width of the through groove is provided between the two to form a positioning area. A connecting shaft is provided in the positioning area to connect the two ends of the two semicircular ring blocks as a whole, and the connecting shaft is also within the range of the receiving groove. A sliding groove matching the size of the connecting shaft is opened on the flatness measuring rod along the length direction, and the connecting shaft is installed through the sliding groove and is slidably connected to the sliding groove. A first limiting groove and a second limiting groove are respectively provided on the head end and the tail end of the flatness measuring rod, and the limiting assembly includes a first limiting assembly and a second limiting assembly;

[0006] In the initial state, the flatness measuring rod is inserted into the receiving groove, and the first limiting assembly cooperates with the first limiting groove to limit the flatness measuring rod in the receiving groove;

[0007] In the working state, the flatness measuring rod is pulled outward under the limit of the connecting shaft and rotated to expand, so that the flatness measuring rod is horizontally placed in the positioning area. At this time, the second limiting assembly cooperates with the second limiting groove to limit the flatness measuring rod in the positioning area;

[0008] The utility model inserts a thickness measuring rod into the ground or a measuring hole, takes out two flatness measuring rods from a storage groove and unfolds them, measures the thickness of concrete by the scales on the side walls of the thickness measuring rod, and detects the flatness of the concrete by the flatness measuring rod.

[0009] In this embodiment, the positioning disk can rotate around the center of the thickness measuring rod in the annular groove, and the first limit assembly includes a lock tongue, a spring and a switch. A square groove arranged perpendicular to the through groove is provided in the limit area and on the inner side wall of the through groove, and a lock tongue matching the first limit groove is slidably mounted in the square groove. The lock tongue is connected to the bottom of the square groove by a spring. In the initial state, under the action of the spring, the lock tongue extends out of the square groove. After the flatness measuring rod is inserted into the storage groove, the lock tongue is inserted into the first limit groove to lock the flatness measuring rod; the switch is installed on the top of the thickness measuring rod, and the switch is linked to the lock tongue through a connecting rod. By toggling the switch in the radial direction, the lock tongue can be driven to move and shrink in the square groove;

[0010] The second limiting assembly includes a telescopic rod, a guide block and a clamping block. A movable groove is provided in the limiting area of ​​the thickness measuring rod. The movable groove connects the switch area at the top of the limiting area with the bottom of the limiting area. A vertically arranged telescopic rod is provided in the movable groove. A guide groove is provided on the side wall of the movable groove. An angle is provided between the guide groove and the horizontal plane. The end of the guide groove with a lower horizontal height is end A, and the end of the guide groove with a higher horizontal height is end B. The fixed end of the telescopic rod is connected to the switch through an L-shaped rod arranged in the movable groove and moving radially. The telescopic rod is driven to move radially in the movable groove by the L-shaped rod. A clamping block is fixed on the movable end of the telescopic rod, and the clamping block matches the second limiting groove. A guide block is fixed on the side wall of the movable end of the telescopic rod. The guide block is slidably installed in the guide groove. A clamping groove arranged radially and matching the clamping block is provided on the top of the semicircular ring block.

[0011] In the initial state, the card slot is connected to the movable slot, and the guide block is placed at the A end of the guide slot. At this time, the card block is slidably installed in the card slot, and the card block limits the rotation of the positioning plate;

[0012] When in working state, unfold the two flatness measuring rods into place, and then turn the switch, the switch drives the telescopic rod to move, so that the guide block moves to the B end of the guide groove, and the telescopic rod contracts at this time, so that the card block is out of the card slot, and the flatness measuring rod is driven to rotate by rotating the positioning plate, so that the second limit slot is below the movable slot, and the telescopic rod drives the card block to insert into the second limit slot to limit the flatness measuring rod.

[0013] In this embodiment, an anti-slip pad is fixed on the upper side of the switch to increase the friction between the user and the switch, making it easier for the user to push.

[0014] In this embodiment, an anti-slip groove is provided on the outer side wall of the positioning plate to facilitate the user to rotate the positioning plate.

[0015] In this embodiment, a pointed cone is provided at the bottom of the thickness measuring rod, and scales arranged along the axial direction are provided on the outer wall of the thickness measuring rod in the thickness measuring area.

[0016] In this embodiment, the thickness measuring rod is provided with an annular groove at the lower side of the annular groove, and the semicircular ring block is slidably installed in the annular groove through a sliding block.

[0017] In this embodiment, the telescopic rod includes a square tube and a square rod, the square rod is slidably inserted in the square tube, and the guide block is fixed on the square rod.

[0018] With the above structure, the utility model has the following advantages:

[0019] 1. This device integrates two functions: thickness measurement and flatness measurement. It is suitable for comprehensive inspection of concrete structural panels. Compared with purchasing multiple separate tools, this device is more economical and practical, reducing the inspection cost.

[0020] 2. The flatness measuring rod of this device can be stored in the thickness measuring rod, which is convenient to carry. When in use, by unfolding and locking the flatness measuring rod, the thickness and flatness of the concrete structure plate can be quickly measured, and the operation is simple.

[0021] 3. The device increases the friction during use and prevents sliding by setting the anti-skid pad. The bubble level on the top of the thickness measuring rod can ensure that the thickness measuring rod is vertically inserted into the concrete, thereby improving the detection accuracy.

[0022] In summary, the utility model inserts a thickness measuring rod into the ground or a measuring hole, measures the thickness of the concrete by the scale on the side wall of the thickness measuring rod, and then takes out two flatness measuring rods from the storage groove to detect the flatness of the concrete. The utility model is convenient to use, has a small size, and is easy to carry and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is the external structure diagram of the initial state of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the top of the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 5 It is a structural schematic diagram of the flatness measuring rod of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the working state of the utility model.

[0029] In the attached drawings: 1. thickness measuring rod; 10. scale; 11. storage groove; 12. through groove; 13. semicircular ring block; 14. slider; 15. flatness measuring rod; 16. connecting shaft; 17. sliding groove; 20. square groove; 21. locking tongue; 22. spring; 23. first limiting groove; 24. switch; 30. movable groove; 32. L-shaped rod; 33. square tube; 34. square rod; 35. guide groove; 36. guide block; 37. clamping block; 38. clamping groove; 39. second limiting groove; 40. anti-skid pad; 41. anti-skid groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figure 1-6As shown, the utility model of the concrete structure plate thickness and flatness detection tool comprises a thickness measuring rod 1 and a flatness measuring rod 15. The bottom of the thickness measuring rod 1 is provided with a pointed cone, and an annular groove is opened on the outer wall of the thickness measuring rod 1, near the top side, along the circumferential direction. The annular groove divides the thickness measuring rod 1 into an upper limiting area and a lower thickness measuring area. The position of the annular groove forms a flatness measuring area. The outer wall of the thickness measuring rod 1 is provided with a scale 10 arranged along the axial direction in the thickness measuring area. The thickness measuring rod 1 is provided with two axially arranged scales. A receiving groove 11 matching with the flatness measuring rod 15, the receiving groove 11 is connected with the annular groove, the two receiving grooves 11 are symmetrically arranged with the center of the thickness measuring rod 1 as the symmetry axis, a through groove 12 arranged radially is provided on the top surface of the thickness measuring rod 1, the through groove 12 matches the size of the flatness measuring rod 15, the through groove 12 penetrates the limit area in the radial and axial directions, and the through groove 12 is connected with the receiving groove 11, and a limit assembly matching with the flatness measuring rod 15 is provided in the through groove 12 and at the position of the receiving groove 11;

[0033] A positioning plate is installed on the thickness measuring rod 1 outside the annular groove, and the positioning plate includes two semicircular ring blocks 13 matching the annular groove. After the two semicircular ring blocks 13 are installed in the annular groove, a spacing matching the width of the through groove 12 is provided between the two to form a positioning area, and the positioning area matches the size of the flatness measuring rod 15. A connecting shaft 16 is provided in the positioning area to connect the two ends of the two semicircular ring blocks 13 as a whole, and the connecting shaft 16 is also within the range where the receiving groove 11 is located. The connecting shaft 16 is not only used to connect the two semicircular ring blocks 13, but also used to connect with the flatness measuring rod 15. Further, a sliding groove 17 matching the size of the connecting shaft 16 is opened on the flatness measuring rod 15 along the length direction, and the connecting shaft 16 is installed through the sliding groove 17 and is slidably connected with the sliding groove 17. The head end and the tail end of the flatness measuring rod 15 are respectively provided with a first limiting groove 23 and a second limiting groove 39, and the limiting assembly includes a first limiting assembly and a second limiting assembly;

[0034] In the initial state, the flatness measuring rod 15 is inserted into the receiving groove 11, and the first limiting assembly cooperates with the first limiting groove 23 to limit the flatness measuring rod 15 in the receiving groove 11, so that it is easy to carry.

[0035] In the working state, the tail end of the flatness measuring rod 15 is pulled out from the receiving groove 11, and the flatness measuring rod 15 is rotated outward around the connecting shaft 16 and placed horizontally in the positioning area. At this time, the two flatness measuring rods 15 are unfolded and arranged vertically with the thickness measuring rod 1, and the second limiting assembly cooperates with the second limiting groove 39 to limit the flatness measuring rod 15 in the positioning area;

[0036] The utility model inserts the thickness measuring rod 1 into the ground or the measuring hole, takes out the two flatness measuring rods 15 from the storage groove and unfolds them, measures the thickness of the concrete by the scale on the side wall of the thickness measuring rod 1, and detects the flatness of the concrete by the flatness measuring rod 15.

[0037] Furthermore, the positioning plate can rotate around the center of the thickness measuring rod 1 in the annular groove. Specifically, the thickness measuring rod 1 is provided with an annular groove at the lower side of the annular groove, and the semicircular ring block 13 is slidably installed in the annular groove through a slider 14, thereby ensuring the stability of the rotation of the positioning plate.

[0038] The first limiting assembly includes a lock tongue 21, a spring 22 and a switch 24. A square groove 20 arranged perpendicularly to the through groove 12 is provided in the limiting area and on the inner side wall of the through groove 12. A lock tongue 21 matching the first limiting groove 23 is slidably mounted in the square groove 20. The lock tongue 21 is connected to the bottom of the square groove 20 by a spring 22. In the initial state, under the action of the spring 22, the lock tongue 21 extends out of the square groove 20. After the flatness measuring rod 15 is inserted into the receiving groove 11, the lock tongue 21 is inserted into the first limiting groove 23 to lock the flatness measuring rod 15. The switch 24 is installed on the top of the thickness measuring rod 1. The switch 24 is linked to the lock tongue 21 through a connecting rod. By toggling the switch 24 radially, the lock tongue 21 can be driven to move and shrink in the square groove 20.

[0039] The second limiting assembly includes a telescopic rod, a guide block 36 and a clamping block 37. The thickness measuring rod 1 is provided with a movable groove 30 in the limiting area. The movable groove 30 connects the area where the switch 24 is located at the top of the limiting area with the bottom of the limiting area. A vertically arranged telescopic rod is arranged in the movable groove. A guide groove 35 is arranged on the side wall of the movable groove. The guide groove 35 has an angle with the horizontal plane. The end of the guide groove 35 with a low horizontal height is end A, and the end of the guide groove 35 with a high horizontal height is end B. The fixed end of the telescopic rod is connected to the switch 24 through an L-shaped rod 32 arranged in the movable groove 30 and moving radially. The telescopic rod is connected to the switch 24 through the L-shaped rod 32. 2 is driven to move radially in the movable groove 30, a clamping block 37 is fixed on the movable end of the telescopic rod, and the clamping block 37 matches the second limiting groove 39. A guide block 36 is also fixed on the movable end of the telescopic rod, and the guide block 36 is slidably installed in the guide groove 35. The top of the semicircular ring block 13 is provided with a clamping groove 38 arranged radially and matching the clamping block 37; specifically, the telescopic rod includes a square tube 33 and a square rod 34, and the square rod 34 is slidably inserted in the square tube 33. One end of the L-shaped rod 32 is fixedly connected to the square tube 33, and the other end is fixedly connected to the switch 24. The guide block 36 is fixed on the square rod 34;

[0040] In the initial state, the card slot 38 is connected to the movable slot 30, and the guide block 36 is placed at the A end of the guide slot 35. At this time, the card block 37 is slidably installed in the card slot 38, and the card block 37 limits the rotation of the positioning plate;

[0041] When in working state, the two flatness measuring rods 15 are unfolded, and the switch 24 is turned. The switch 24 drives the telescopic rod to move, so that the guide block 36 moves to the B end of the guide groove 35. At this time, the telescopic rod contracts, so that the block 37 disengages from the slot 38 and shrinks in the movable slot 30. By rotating the positioning plate, the positioning plate will drive the flatness measuring rod 15 to rotate, so that the second limit slot 39 is below the movable slot 30. At this time, the switch 24 returns to its original position under the action of the spring 20, and the telescopic rod drives the block 37 to insert into the second limit slot 39 to limit the flatness measuring rod 15, thereby preventing the flatness measuring rod 15 from rotating in the horizontal and vertical directions, thereby ensuring the accuracy of the detection.

[0042] Furthermore, an anti-skid pad 40 is fixed on the upper side of the switch 24 to increase the friction between the user and the switch 24, making it easier for the user to push. An anti-skid groove 41 is provided on the outer wall of the positioning plate to facilitate the user to rotate the positioning plate. A bubble level is provided on the top of the thickness measuring rod 1.

[0043] The specific usage process is as follows: during production, the length of the thickness measuring rod 1 can be made according to the thickness of the concrete structural plate. When in use, first unfold the flatness measuring rod 15 and lock the flatness measuring rod 15. Then, during the concrete pouring process, vertically insert the thickness measuring rod 1 into the concrete structural plate to measure whether the thickness meets the standard. At the same time, make the flatness measuring rod 15 contact with the surface of the concrete structural plate to detect the flatness of the surface of the concrete structural plate.

[0044] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A tool for detecting thickness and flatness of concrete structural slabs, characterized in that: It comprises a thickness measuring rod and a flatness measuring rod. An annular groove is provided on the outer wall of the thickness measuring rod near the top along the circumferential direction. The annular groove divides the thickness measuring rod into an upper limiting area and a lower thickness measuring area. The position where the annular groove is located forms a flatness measuring area. Two symmetrically arranged receiving grooves matching the size of the flatness measuring rod are provided in the thickness measuring rod along the axial direction. The receiving grooves are connected with the annular groove. A through groove arranged in the radial direction and matching the width of the flatness measuring rod is provided on the top surface of the thickness measuring rod. The through groove is connected with the receiving groove. A limiting assembly matching the flatness measuring rod is provided in the through groove at the position where the receiving groove is located. A positioning plate is installed on the thickness measuring rod outside the annular groove, and the positioning plate includes two semicircular ring blocks matching the annular groove. After the two semicircular ring blocks are installed in the annular groove, a spacing matching the width of the through groove is provided between the two to form a positioning area. A connecting shaft is provided in the positioning area to connect the two ends of the two semicircular ring blocks as a whole, and the connecting shaft is also within the range of the receiving groove. A sliding groove matching the size of the connecting shaft is opened on the flatness measuring rod along the length direction, and the connecting shaft is installed through the sliding groove and is slidably connected to the sliding groove. A first limiting groove and a second limiting groove are respectively provided on the head end and the tail end of the flatness measuring rod, and the limiting assembly includes a first limiting assembly and a second limiting assembly; In the initial state, the flatness measuring rod is inserted into the receiving groove, and the first limiting assembly cooperates with the first limiting groove to limit the flatness measuring rod in the receiving groove; When in working state, the flatness measuring rod is pulled outward and rotated and unfolded under the limitation of the connecting shaft, so that the flatness measuring rod is placed horizontally in the positioning area. At this time, the second limiting assembly cooperates with the second limiting groove to limit the flatness measuring rod in the positioning area.

2. The tool for detecting thickness and flatness of concrete structural slabs according to claim 1, characterized in that: The positioning disk can rotate around the center of the thickness measuring rod in the annular groove. The first limiting assembly includes a locking tongue, a spring and a switch. A square groove arranged perpendicular to the through groove is provided in the limiting area and on the inner side wall of the through groove. A locking tongue matching the first limiting groove is slidably mounted in the square groove. The locking tongue is connected to the bottom of the square groove by a spring. In the initial state, under the action of the spring, the locking tongue extends out of the square groove. After the flatness measuring rod is inserted into the receiving groove, the locking tongue is inserted into the first limiting groove to lock the flatness measuring rod. The switch is installed on the top of the thickness measuring rod. The switch is linked to the locking tongue through a connecting rod. By toggling the switch radially, the locking tongue can be driven to move and shrink in the square groove. The second limiting assembly includes a telescopic rod, a guide block and a clamping block. A movable groove is provided in the limiting area of ​​the thickness measuring rod. The movable groove connects the switch area at the top of the limiting area with the bottom of the limiting area. A vertically arranged telescopic rod is provided in the movable groove. A guide groove is provided on the side wall of the movable groove. An angle is provided between the guide groove and the horizontal plane. The end of the guide groove with a lower horizontal height is end A, and the end of the guide groove with a higher horizontal height is end B. The fixed end of the telescopic rod is connected to the switch through an L-shaped rod arranged in the movable groove and moving radially. The telescopic rod is driven to move radially in the movable groove by the L-shaped rod. A clamping block is fixed on the movable end of the telescopic rod, and the clamping block matches the second limiting groove. A guide block is fixed on the side wall of the movable end of the telescopic rod. The guide block is slidably installed in the guide groove. A clamping groove arranged radially and matching the clamping block is provided on the top of the semicircular ring block. In the initial state, the card slot is connected to the movable slot, and the guide block is placed at the A end of the guide slot. At this time, the card block is slidably installed in the card slot, and the card block limits the rotation of the positioning plate; When in working state, unfold the two flatness measuring rods into place, and then turn the switch, the switch drives the telescopic rod to move, so that the guide block moves to the B end of the guide groove, and the telescopic rod contracts at this time, so that the card block is out of the card slot, and the flatness measuring rod is driven to rotate by rotating the positioning plate, so that the second limit slot is below the movable slot, and the telescopic rod drives the card block to insert into the second limit slot to limit the flatness measuring rod.

3. The tool for detecting thickness and flatness of concrete structural slabs according to claim 2, characterized in that: An anti-skid pad is fixed on the upper side of the switch.

4. The tool for detecting thickness and flatness of concrete structural slabs according to claim 2, characterized in that: An anti-slip groove is arranged on the outer side wall of the positioning plate.

5. The tool for detecting thickness and flatness of concrete structural slabs according to claim 1, characterized in that: A pointed cone is arranged at the bottom of the thickness measuring rod, and scales arranged along the axial direction are arranged on the outer wall of the thickness measuring rod in the thickness measuring area.

6. The tool for detecting thickness and flatness of concrete structural slabs according to claim 1, characterized in that: The thickness measuring rod is provided with a circular groove at the lower side of the annular groove, and the semicircular ring block is slidably installed in the circular groove through a sliding block.

7. The tool for detecting thickness and flatness of concrete structural slabs according to claim 2, characterized in that: The telescopic rod comprises a square tube and a square rod. The square rod is slidably inserted in the square tube, and the guide block is fixed on the square rod.

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