Finalization tool for checking thickness of bottom steel bar protective layer of concrete structure

By designing a styling tool for hollow clamping and telescopic components, the problem of difficult to check the thickness of the steel bar protective layer at the bottom of the concrete structure is solved, effective measurement and quality control are achieved in a narrow space, and the durability of the structure is improved.

CN222258051UActive Publication Date: 2024-12-27CONSTR DEV OF CHINA CONSTR SIXTH ENG DIV +1
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Patent Information

Application Number
CN202421135700.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2024-12-27
Estimated Expiration
2034-05-23

AI Technical Summary

Technical Problem

The prior art is difficult to effectively check the thickness of the steel bars at the bottom of concrete structures with large heights due to the small space, resulting in quality hazards and durability problems.

Method used

A fixed tool including hollow clamping hoops, friction blocks, fixed tubes, friction rods, tape measure and telescopic components is designed. The hollow clamping hoops are kept open through arc plates and friction. The tape measure measuring part can intuitively judge the thickness of the protective layer. , and adjust the tool length through expansion parts and airbags to adapt to narrow environments.

Benefits of technology

Effective measurement of the thickness of the steel bar protective layer is achieved, especially in dark environments, which improves the scope of application and accuracy of the inspection tool, and ensures quality inspection of the bottom of the structure.

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Abstract

The utility model provides a finalization tool for detecting the thickness of a steel bar protection layer at the bottom of a concrete structure, and relates to the field of thickness detection. The shaping tool for checking the thickness of the steel bar protective layer at the bottom of the concrete structure comprises two hollow hoops, the sides, away from each other, of the two hollow hoops are each fixedly connected with two friction blocks, and the sides, away from each other, of the two hollow hoops are each provided with two fixing pipes. The arc-shaped plates arranged at the bottoms of the two hollow hoops form a flaring piece, the flaring piece is opened left and right under the action of a protective layer at the bottom of the outer side of the steel bar structure, the thickness inspection tool is upwards moved away from the outer side of the steel bar structure, and the two hollow hoops are kept in a left-right opening state under the action of a plurality of friction rods and a plurality of friction blocks. The length of the tape measuring part pulled out of the tape is not changed, and after a worker withdraws the thickness inspection tool, the thickness data of the steel bar protective layer can be visually and effectively judged by observing the length of the tape measuring part pulled out.
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Description

Technical Field

[0001] The utility model relates to a thickness detection, in particular to a standardized tool for checking the thickness of a steel bar protective layer at the bottom of a concrete structure, belonging to the technical field of thickness detection. Background Art

[0002] After the installation of steel bars and formwork in reinforced concrete structures is completed, the installation quality needs to be inspected and accepted, and the thickness of the steel bar protective layer is an important inspection item. The bottom steel bars often have unqualified protective layer thickness due to their own weight or disturbance during the construction process. If the quality defects are not discovered and rectified early, it is very easy to cause quality risks and even affect the durability of the bottom tension area of ​​the structure.

[0003] The conventional method for checking the thickness of the protective layer is to measure it with a ruler. However, for the bottom steel bars of structures, especially those at the bottom of structures with a large height, it is difficult to check the thickness of the protective layer by measuring it with a ruler after the formwork is installed due to the small space. In order to effectively check the positions that are not easily covered by conventional inspection methods and find problems as early as possible, it is necessary to propose a standardized tool for checking the thickness of the protective layer of the bottom steel bars of cast-in-place concrete structures. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a standardized tool for checking the thickness of the protective layer of the steel bars at the bottom of a concrete structure in order to solve the above-mentioned problem, so as to solve the problem in the prior art that the thickness of the protective layer of the steel bars at the bottom of the structure, especially the steel bars at the bottom of a structure with a large height, is difficult to check by measuring with a ruler after the template is installed due to the small space.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: a standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure, comprising two hollow hoops, two friction blocks are fixedly connected to the sides of the two hollow hoops away from each other, two fixed tubes are arranged on the sides of the two hollow hoops away from each other, friction rods are slidably connected inside the fixed tubes, each of the friction rods passes through the two hollow hoops and the adjacent friction blocks, arc plates are arranged at the bottoms of the two hollow hoops, a tape measure is arranged on one side of one of the hollow hoops, a tape measure measuring part is fixedly connected between the tape measure and the friction block fixedly installed on one side of the other hollow hoop, and a telescopic component is installed on one side of the hollow hoop.

[0008] Preferably, the telescopic assembly comprises a mounting tube, an extension rod is slidably connected inside the mounting tube, and one end of the extension rod is fixedly connected to an adjacent hollow clamp.

[0009] Preferably, one end of the mounting tube is fixedly connected to an expansion member, the expansion member is sleeved on the outside of the extension rod, one side of the expansion member is fixedly connected to an air guide tube, and an air storage airbag is fixedly connected between the air guide tube and the mounting tube.

[0010] Preferably, the fixed tube is fixedly connected to the adjacent friction block, the friction rod is arranged in an I-shape, two circular holes are provided on both sides of the hollow clamp and the plurality of friction blocks, and the thinner diameter portion of the friction rod passes through the adjacent circular holes.

[0011] Preferably, the measuring tape is fixedly connected to the top of an adjacent fixed tube, wherein one of the hollow clamps and one side of the friction block are provided with directional grooves, and the measuring portion of the measuring tape passes through the two directional grooves.

[0012] Preferably, a connecting plate is fixedly connected to the top of the arc-shaped plate, and a plurality of assembly plates are fixedly connected to the top of the connecting plate.

[0013] Preferably, a plurality of assembly grooves are provided at the bottom of the hollow clamp, and a plurality of assembly plates are respectively arranged inside the plurality of assembly grooves.

[0014] The utility model provides a standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure, which has the following beneficial effects:

[0015] 1. The standardized tool for checking the thickness of the steel bar protective layer at the bottom of the concrete structure, the arc-shaped plates arranged at the bottom of the two hollow hoops constitute a flaring piece, the flaring piece opens left and right under the action of the bottom protective layer on the outer side of the steel bar structure, the thickness inspection tool is moved up and away from the outer side of the steel bar structure, under the action of multiple friction rods and multiple friction blocks, the two hollow hoops remain in the state of opening left and right, and the distance between the two hollow hoops remains unchanged, the length of the measuring tape pulled out of the inside of the measuring tape remains unchanged, after the staff retracts the thickness inspection tool, the thickness data of the steel bar protective layer can be visually and effectively judged by observing the length of the measuring tape pulled out, the thickness of the steel bar protective layer in a dark environment can be effectively measured, and the application scope of the thickness inspection tool is improved.

[0016] 2. This standardized tool for checking the thickness of the steel bar protective layer at the bottom of the concrete structure, after the air storage bag is pressed, the air pressure inside the air guide tube and the expansion piece will increase, and finally the expansion piece will expand. After the expansion piece set on the outside of the extension rod expands, the friction between the expansion piece and the extension rod increases, and the extension rod cannot continue to leave the inside of the installation tube, completing the adjustment of the extension length of the telescopic component, so that the distance between the hollow clamp fixed by the telescopic component and the user can be adjusted according to the working environment, meeting the needs of the thickness inspection tool composed of two hollow clamps, two arc plates of the telescopic component, multiple fixed tubes, multiple friction rods, tape measures, etc. in a narrow and complex environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the hollow clamp of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the friction block of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the arc plate of the utility model.

[0021]

Main component symbol description

[0022] 1. Hollow clamp; 2. Friction block; 3. Fixed tube; 4. Friction rod; 5. Round hole; 6. Tape measure; 7. Tape measure part; 8. Direction groove; 9. Arc plate; 10. Connecting plate; 11. Assembly plate; 12. Assembly groove; 13. Extension rod; 14. Mounting tube; 15. Air storage bag; 16. Air guide tube; 17. Expansion piece. DETAILED DESCRIPTION

[0023] The embodiment of the utility model provides a standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including two hollow hoops 1, two friction blocks 2 are fixedly connected to the sides of the two hollow hoops 1 away from each other, two fixed tubes 3 are arranged on the sides of the two hollow hoops 1 away from each other, friction rods 4 are slidably connected inside the fixed tubes 3, each friction rod 4 passes through the two hollow hoops 1 and the adjacent friction blocks 2, arc plates 9 are arranged at the bottom of the two hollow hoops 1, a tape measure 6 is arranged on one side of one of the hollow hoops 1, a tape measure measuring part 7 is fixedly connected between the tape measure 6 and the friction block 2 fixedly installed on one side of the other hollow hoops 1, and a telescopic component is installed on one side of the hollow hoops 1.

[0025] When the utility model is used: the user first holds the mounting tube 14 in the telescopic assembly, and one end of the extension rod 13 slidably connected inside the mounting tube 14 is fixedly connected to the adjacent hollow clamp 1, so the user pulls the hollow clamp 1 with the other hand to adjust the distance between the mounting tube 14 and the hollow clamp 1. The user adjusts the length of the extension rod 13 in the mounting tube 14 away from the inside of the mounting tube 14 according to the working environment, and controls the distance between the mounting tube 14 and the hollow clamp 1 to reach a suitable length. Then, the user presses the air storage bag 15 fixedly connected to the top of the mounting tube 14 with a finger, and the air storage bag 15 is fixedly connected to one side of the air guide tube 16, and the expansion piece 17 fixedly connected to the air guide tube 16 is fixedly connected to one end of the mounting tube 14, so after the air storage bag 15 is pressed, the air pressure inside the air guide tube 16 and the expansion piece 17 will increase, and finally the expansion piece 17 will expand. After the expansion piece 17 sleeved on the outside of the extension rod 13 expands, the friction between the expansion piece 17 and the extension rod 13 increases, and the extension rod 13 cannot continue to leave the inside of the mounting tube 14, thereby completing the adjustment of the extension length of the telescopic assembly, so that the distance between the hollow clamp 1 fixed by the telescopic assembly and the user can be adjusted according to the working environment, meeting the needs of using a thickness inspection tool composed of two hollow clamps 1, two arc-shaped plates 9 of the telescopic assembly, multiple fixed tubes 3, multiple friction rods 4, and a tape measure 6 in a narrow and complex environment.

[0026] The user stands on the top of the steel structure, holds the thickness inspection tool, puts the two hollow hoops 1 on the outside of the steel structure, and then pushes the thickness inspection tool to the bottom of the steel structure. When the thickness inspection tool moves downward, the arc plate 9 arranged at the bottom of the two hollow hoops 1 forms a flaring piece, and the flaring piece opens left and right under the action of the bottom protective layer outside the steel structure, and the two hollow hoops 1 open left and right.

[0027] And the two hollow hoops 1 are fixedly connected to two friction blocks 2 on the sides away from each other, and the two hollow hoops 1 are provided with two fixed tubes 3 on the sides away from each other, and the fixed tubes 3 are fixedly connected to the adjacent friction blocks 2. The two hollow hoops 1 are fixedly connected to the two fixed tubes 3 through the friction blocks 2, and the friction rods 4 slidably connected inside the fixed tubes 3 are set in an I-shape, and two circular holes 5 are provided on both sides of the hollow hoops 1 and the multiple friction blocks 2. Figure 2As shown, the thinner diameter part of the friction rod 4 passes through the adjacent circular hole 5. The I-shaped design of the friction rod 4 prevents one end of the friction rod 4 from leaving the interior of the fixed tube 3, and the other end cannot pass through the circular hole 5 to enter the interior of the fixed tube 3. Therefore, under the action of multiple friction rods 4, the two hollow clamps 1 can only move horizontally left and right. When the hollow clamps 1 are set to the outside of the bottom protective layer of the steel structure, the hollow clamps 1 are opened to a certain distance left and right. The tape measure 6 is fixedly connected to the top of the fixed tube 3 where the adjacent hollow clamps 1 are fixedly installed through the friction block 2. The side of the adjacent hollow clamps 1 and the friction block 2 of the tape measure 6 are both provided with a direction groove 8. One end of the tape measure measuring part 7 inside the tape measure 6 passes through the two direction grooves 8. One end of the tape measure measuring part 7 is fixedly connected to the friction block 2 fixedly installed on one side of the hollow clamp 1 far away from the tape measure 6. Therefore, when the two hollow clamps 1 are opened left and right, the tape measure measuring part 7 is pulled out from the inside of the tape measure 6. The pulled-out length of the tape measure measuring part 7 is the diameter of the bottom protective layer outside the structure.

[0028] Then the thickness inspection tool is moved up and away from the outside of the steel structure. During this process, although the steel protection layer support is lost between the two arc plates 9 and the two hollow hoops 1, the friction between the multiple friction rods 4 and the multiple friction blocks 2 is much greater than the pulling force of the automatic winding tape measuring part 7 of the tape measure 6. Therefore, under the action of the multiple friction rods 4 and the multiple friction blocks 2, the two hollow hoops 1 remain in the left and right open state, and the distance between the two hollow hoops 1 remains unchanged, and the length of the tape measuring part 7 pulled out of the tape measure 6 remains unchanged. After the staff retracts the thickness inspection tool, the thickness data of the steel protection layer can be intuitively and effectively judged by observing the length of the tape measuring part 7 pulled out, which can effectively measure the thickness of the steel protection layer in a dark environment, thereby improving the application scope of the thickness inspection tool.

[0029] A connecting plate 10 is fixedly connected to the top of the arc plate 9, and a plurality of assembly plates 11 are fixedly connected to the top of the connecting plate 10. A plurality of assembly grooves 12 are opened at the bottom of the hollow hoop 1, and a plurality of assembly plates 11 are respectively arranged inside the plurality of assembly grooves 12. The assembly plates 11 and the hollow hoop 1 are in an interference fit state, and the friction force between the plurality of assembly plates 11 and the hollow hoop 1 installs the arc plate 9 and the hollow hoop 1 together. After pulling the arc plate 9 with force, the assembly plate 11 can be made to leave the assembly groove 12, and the arc plate 9 and the hollow hoop 1 can be disassembled. After selecting a suitable arc plate 9 according to the working environment, the assembly plate 11 fixedly connected to the top of the new arc plate 9 through the connecting plate 10 is inserted into the assembly groove 12 opened in the hollow hoop 1, and the installation of the arc plate 9 can be completed. The suitable arc plate 9 can be rotated for use according to the working environment.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure, comprising two hollow hoops (1), characterized in that: Two friction blocks (2) are fixedly connected to the sides of the two hollow hoops (1) away from each other. Two fixed tubes (3) are arranged on the sides of the two hollow hoops (1) away from each other. Friction rods (4) are slidably connected inside the fixed tubes (3). Each friction rod (4) passes through the two hollow hoops (1) and the adjacent friction blocks (2). An arc plate (9) is arranged at the bottom of the two hollow hoops (1). A tape measure (6) is arranged on one side of one of the hollow hoops (1). A tape measure measuring part (7) is fixedly connected between the tape measure (6) and the friction block (2) fixedly installed on one side of the other hollow hoops (1). A telescopic component is installed on one side of the hollow hoops (1).

2. According to claim 1, a standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure is characterized by: The telescopic assembly comprises a mounting tube (14), an extension rod (13) is slidably connected inside the mounting tube (14), and one end of the extension rod (13) is fixedly connected to an adjacent hollow clamp (1).

3. A standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure according to claim 2, characterized in that: An expansion member (17) is fixedly connected to one end of the mounting tube (14), and the expansion member (17) is sleeved on the outside of the extension rod (13). An air guide tube (16) is fixedly connected to one side of the expansion member (17), and an air storage bag (15) is fixedly connected between the air guide tube (16) and the mounting tube (14).

4. The standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure according to claim 1 is characterized by: The fixed tube (3) is fixedly connected to the adjacent friction block (2); the friction rod (4) is arranged in an I-shape; two circular holes (5) are provided on both sides of the hollow clamp (1) and the plurality of friction blocks (2); and the thinner diameter portion of the friction rod (4) passes through the adjacent circular holes (5).

5. According to claim 1, a standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure is characterized by: The measuring tape (6) is fixedly connected to the top of an adjacent fixed tube (3), and one side of the hollow clamp (1) and the friction block (2) are both provided with a direction groove (8), and the measuring tape portion (7) passes through the two direction grooves (8).

6. The standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure according to claim 1 is characterized by: A connecting plate (10) is fixedly connected to the top of the arc-shaped plate (9), and a plurality of assembly plates (11) are fixedly connected to the top of the connecting plate (10).

7. A standardized tool for checking the thickness of the steel bar protective layer at the bottom of a concrete structure according to claim 6, characterized in that: The bottom of the hollow hoop (1) is provided with a plurality of assembly grooves (12), and the plurality of assembly plates (11) are respectively arranged inside the plurality of assembly grooves (12).