Detector for constructional engineering quality detection

Abstract

The invention relates to the technical field of constructional engineering quality detection, and discloses a detector for constructional engineering quality detection, which comprises a detector body, fixed blocks are fixedly connected to two sides of the surface of the detector body, a moving rod is fixedly connected between the two fixed blocks, and a connecting plate is rotatably connected to the outer wall of the moving rod. The cross section of the connecting plate is in an inverted U shape, a moving groove is formed in the middle of the connecting plate, a threaded rod is slidably connected into the moving groove, a connecting ring corresponding to the moving groove in position is fixedly connected to the surface of the middle of the connecting plate, a rotating sleeve is rotatably connected to the outer wall of the connecting ring, and a plurality of rotating rods are fixedly connected to the outer wall of the rotating sleeve. The outer end of each rotating rod is fixedly connected with the rotating ring, and the bottom of the threaded rod is connected with a pressing plate. According to the detector for detecting the quality of the constructional engineering, complete sealing and stable permeation of gas in the gas permeability testing process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering quality detection, and in particular to a detection instrument used for construction engineering quality detection. Background Art

[0002] Construction project quality inspection refers to the activities of testing the materials, components, equipment, and quality and usage functions of construction projects in accordance with relevant national laws and regulations, mandatory standards for construction projects, and design documents to determine their quality characteristics. The concrete gas permeability detector is one of the detectors used in construction project quality inspection. The gas permeability of concrete mainly reflects the anti-gas permeability performance of concrete specimens, and characterizes the density and internal defects of concrete.

[0003] For example, in the prior art, the patent with the authorization announcement number CN107063968B discloses a concrete gas permeability test device and method, which includes a piston container and a sample container for placing a sample, the upper end of the sample container is connected to the top cover, the piston container is connected to the top cover through a conduit and an air inlet valve, the lower end of the sample container is open, and the outer periphery of the sample is covered with a latex film, the lower end of the sample container is connected to the gas container, one side of the gas container is connected to the vacuum pump through a conduit, a pneumatic valve is set between the gas container and the vacuum pump, and the other side of the gas container is connected to a pressure transmitter, and the pressure transmitter is connected to a computer. The device can be used to implement the gas permeability test of concrete, solving the technical problem that the existing instruments cannot control the gas volume and sealing.

[0004] However, the above-mentioned gas permeability testing device has certain defects when used: When testing concrete, the existing gas permeability tester needs to press the concrete specimen into the mold to ensure the sealing and stability of the specimen during the test and prevent gas leakage from causing deviations in the permeability test results. However, the existing gas permeability tester does not have a specimen compacting device, and the tester needs to compact the specimen manually. Manual compaction is difficult to control the strength and uniformity, which may cause uneven stress distribution inside the specimen. The contact between the specimen and the mold may not be tight enough, and there may be tiny gaps, which will cause gas leakage, thereby affecting the accuracy of the test. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a detector for building engineering quality inspection, which is convenient for testers to compact test pieces.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a detector for detecting the quality of construction projects, comprising a detector body, fixed blocks fixedly connected to both sides of the surface of the detector body, a moving rod fixedly connected between the two fixed blocks, a connecting plate rotatably connected to the outer wall of the moving rod, the connecting plate cross-section is an inverted U-shaped arrangement, a moving groove is provided in the middle of the connecting plate, a threaded rod is slidably connected in the moving groove, a connecting ring corresponding to the position of the moving groove is fixedly connected to the middle surface of the connecting plate, a rotating sleeve is rotatably connected to the outer wall of the connecting ring, a threaded groove corresponding to the position of the threaded rod is provided on the inner wall of the rotating sleeve, a rotating groove corresponding to the position of the connecting ring is provided at the bottom of the rotating sleeve, a plurality of rotating rods are fixedly connected to the outer wall of the rotating sleeve, a rotating ring is installed on the outside of the rotating sleeve, the outer end of each rotating rod is fixedly connected to the rotating ring, a pressure plate is connected to the bottom of the threaded rod, and a positioning assembly is connected to the end of the connecting plate away from the moving rod.

[0007] Furthermore, the positioning assembly includes a positioning block, a magnetic column, a clamping block and a rotating shaft. The positioning block is fixedly connected to one end of the connecting plate away from the moving rod. A mounting groove is provided in the positioning block. The magnetic column is rotatably connected in the mounting groove. Clamping grooves are provided at both ends of the magnetic column. A clamping block is slidably connected in each clamping groove. The end of each clamping block away from the magnetic column is fixedly connected to the rotating shaft. One end of the rotating shaft penetrates the outer wall of the positioning block. An iron plate is fixedly connected to one side of the surface of the detector body away from the moving rod. The length of the iron plate is not less than the length of the moving rod. The position of the iron plate corresponds to that of the positioning block. Copper plates are fixedly connected to the upper and lower surfaces of the inner wall of the mounting groove.

[0008] Furthermore, one end of the rotating shaft located outside the positioning block is fixedly connected to the rotating block.

[0009] Furthermore, a handle is fixedly connected to a side of the positioning block away from the moving rod.

[0010] Furthermore, an anti-slip sleeve is provided on the outer wall of the rotating ring.

[0011] Furthermore, a plurality of balls are embedded between the inner wall of the rotating groove and the connecting ring.

[0012] Furthermore, a connecting block is fixedly connected to the bottom end of the threaded rod, and a connecting groove corresponding to the position of the connecting block is opened on the surface of the pressure plate.

[0013] Furthermore, the bottom surface of the pressing plate is provided with anti-slip grooves.

[0014] Furthermore, a positioning plate is fixedly connected to the top end of the threaded rod.

[0015] Furthermore, two symmetrically positioned limiting plates are fixedly connected to the inner wall of the movable groove, and a sliding groove corresponding to the position of the limiting plates is provided on the outer wall of the threaded rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This detector used for construction engineering quality inspection, by installing a threaded rod on the connecting plate, installing a pressure plate on the threaded rod, and using the cooperation between the pressure plate and the rotating ring, the tester can press and compact the test piece to ensure that the test piece and the mold are in close contact, effectively eliminating the gap between the test piece and the mold, ensuring the complete sealing and stable penetration of gas during the gas permeability test, thereby improving the accuracy and reliability of the test. The uniform downward pressure of the pressure plate can also improve the strength and uniformity of the test piece when pressing down, avoiding the uneven stress distribution inside the test piece, thereby reducing the test error caused by uneven compaction; 2. The connecting plate can be moved according to the position of the test piece by using the moving rod, so that a single pressing plate can be used to press molds at multiple different positions, thereby improving the test efficiency; 3. The magnetic column and the iron plate cooperate with each other, so that the connecting plate and the pressure plate can be quickly and accurately positioned at the required position, ensuring that the connecting plate and the pressure plate will not move or shake unnecessarily during the test, avoiding the pressure plate from exerting inaccurate downward pressure on the test piece due to position offset, and helping to improve the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of another form of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the connecting plate, the positioning assembly and the threaded rod of the present invention; Figure 4 It is a schematic diagram of a three-dimensional split cross-sectional structure of the threaded rod, the pressing plate and the connecting plate of the present invention; Figure 5 It is a schematic diagram of a three-dimensional split cross-sectional structure of the threaded rod, the pressing plate and the connecting block of the present invention; Figure 6 It is a schematic diagram of the three-dimensional split cross-sectional structure of the rotating sleeve, the anti-slip sleeve and the connecting ring of the present invention; Figure 7 It is a schematic diagram of the three-dimensional split cross-sectional structure of the positioning block, the magnetic column and the rotating block of the present invention; Figure 8 It is a schematic diagram of the three-dimensional disassembled structure of the magnetic column, the clamping block and the rotating shaft of the present invention.

[0018] In the figure: 1. detector body; 2. fixed block; 3. moving rod; 4. connecting plate; 5. moving groove; 6. threaded rod; 7. pressure plate; 8. connecting ring; 9. rotating sleeve; 10. threaded groove; 11. rotating groove; 12. rotating rod; 13. rotating ring; 14. anti-skid sleeve; 15. ball; 16. positioning plate; 17. limit plate; 18. slide groove; 19. connecting block; 20. connecting groove; 21. anti-skid pattern; 22. positioning block; 23. mounting groove; 24. magnetic column; 25. clamping groove; 26. clamping block; 27. rotating shaft; 28. rotating block; 29. ​​handle; 30. iron plate; 31. copper plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1 to 8 , a detector for quality inspection of construction projects, including a detector body 1, fixed blocks 2 are fixedly connected to both sides of the surface of the detector body 1, a moving rod 3 is fixedly connected between the two fixed blocks 2, a connecting plate 4 is rotatably connected to the outer wall of the moving rod 3, the cross section of the connecting plate 4 is an inverted U-shaped setting, a moving groove 5 is opened in the middle of the connecting plate 4, a threaded rod 6 is slidably connected in the moving groove 5, a connecting ring 8 corresponding to the position of the moving groove 5 is fixedly connected to the middle surface of the connecting plate 4, a rotating sleeve 9 is rotatably connected to the outer wall of the connecting ring 8, a threaded groove 10 corresponding to the position of the threaded rod 6 is opened on the inner wall of the rotating sleeve 9, a rotating groove 11 corresponding to the position of the connecting ring 8 is opened at the bottom of the rotating sleeve 9, a plurality of rotating rods 12 are fixedly connected to the outer wall of the rotating sleeve 9, a rotating ring 13 is installed outside the rotating sleeve 9, the outer end of each rotating rod 12 is fixedly connected to the rotating ring 13, a pressing plate 7 is connected to the bottom of the threaded rod 6, and a positioning component is connected to the end of the connecting plate 4 away from the moving rod 3.

[0021] The detector for construction engineering quality inspection in the present invention, when it is necessary to inspect concrete, first put the concrete test piece in the mold installed on the surface of the detector body 1, then push the connecting plate 4 along the moving rod 3 to align the connecting plate 4 with the test piece, then rotate the connecting plate 4 to move the pressing plate 7 to just above the test piece, then the tester uses the rotating ring 13 to rotate the rotating sleeve 9, at this time, driven by the threaded groove 10, the threaded rod 6 moves down, and then drives the pressing plate 7 to move down, and then squeezes the test piece, with the continuous rotation of the rotating ring 13, the pressing plate 7 will continue to squeeze the test piece, so that the test piece and the mold are pressed tightly, and the installation of the test piece is completed, then the tester flips the connecting plate 4 to the back side of the detector body 1, and then the mold can be closed to perform a gas permeability test; By installing the threaded rod 6 on the connecting plate 4 and installing the pressing plate 7 on the threaded rod 6, and utilizing the cooperation between the pressing plate 7 and the rotating ring 13, the tester can press and compact the test piece to ensure that the test piece and the mold are in close contact, effectively eliminating the gap between the test piece and the mold, and ensuring the complete sealing and stable penetration of the gas during the gas permeability test, thereby improving the accuracy and reliability of the test. The uniform downward pressure of the pressing plate 7 can also increase the force and uniformity of the downward pressure on the test piece, avoiding uneven stress distribution inside the test piece, thereby reducing the test error caused by uneven compaction; utilizing the moving rod 3, the connecting plate 4 can be moved according to the position of the test piece, so that a single pressing plate 7 can be used to compact molds in multiple different positions, thereby improving the test efficiency.

[0022] As a preferred technical solution of the present invention, the positioning assembly includes a positioning block 22, a magnetic column 24, a clamping block 26 and a rotating shaft 27. The end of the connecting plate 4 away from the moving rod 3 is fixedly connected to the positioning block 22, and an installation groove 23 is opened in the positioning block 22. The magnetic column 24 is rotatably connected in the installation groove 23. Clamping grooves 25 are opened at both ends of the magnetic column 24, and a clamping block 26 is slidably connected in each clamping groove 25. The end of each clamping block 26 away from the magnetic column 24 is fixedly connected to the rotating shaft 27, and one end of the rotating shaft 27 penetrates the outer wall of the positioning block 22. An iron plate 30 is fixedly connected to the side of the surface of the detector body 1 away from the moving rod 3. The length of the iron plate 30 is not less than the length of the moving rod 3. The iron plate 30 corresponds to the position of the positioning block 22, and the upper and lower surfaces of the inner wall of the mounting groove 23 are fixedly connected to the copper plate 31.

[0023] Specifically, the magnetic column 24 is divided into two upper and lower semi-cylinders, one of which is the N pole and the other is the S pole. The positioning block 22 is an iron material with good magnetic conductivity. After moving the connecting plate 4 to correspond to the position of the test piece and rotating the connecting plate 4 to align the pressure plate 7 with the test piece, the tester rotates the shaft 27 to drive the magnetic column 24 to move. At this time, the N pole or S pole in the magnetic column 24 will be misaligned with the copper plate 31. Then, under strong magnetic adsorption, the positioning block 22 will be tightly adsorbed with the iron plate 30, thereby fixing the connecting plate 4 in the desired position to avoid movement of the connecting plate 4 during the process of the pressure plate 7 pressing the test piece. After the pressing is completed, the tester rotates the shaft 27 again to align the N pole and the S pole with a copper plate 31 respectively, and the magnetic field generated by the magnetic pole will be in the copper plate 31. An induced current is generated, and at the same time, the induced current will generate a magnetic field in the opposite direction to the original magnetic field. The two magnetic fields cancel each other out, thereby achieving the confinement of the magnetic field. Under the obstruction and confinement of the copper plate 31, the magnetic field can only exist inside the mounting groove 23 and cannot diffuse to the outside of the positioning block 22. At this time, the strong magnetic adsorption between the positioning block 22 and the iron plate 30 will be released, and the tester can rotate the connecting plate 4 to the back side of the detector body 1; by utilizing the mutual cooperation between the magnetic column 24 and the iron plate 30, the connecting plate 4 and the pressing plate 7 can be quickly and accurately positioned at the desired position, ensuring that the connecting plate 4 and the pressing plate 7 will not move or shake unnecessarily during the test, thereby avoiding the pressing plate 7 from generating inaccurate downward pressure on the test piece due to position offset, thereby helping to improve the accuracy and reliability of the test.

[0024] As a preferred technical solution of the present invention, one end of the rotating shaft 27 located outside the positioning block 22 is fixedly connected to a rotating block 28 .

[0025] Specifically, the rotating block 28 enables the tester to rotate the shaft 27 more easily. Compared with directly holding the small shaft 27 for rotation, the rotating block 28 provides a larger force area, allowing the tester to apply force more stably with fingers or palms, which not only reduces the difficulty of rotation, but also reduces the risk of damage to the shaft 27 due to improper operation.

[0026] As a preferred technical solution of the present invention, a handle 29 is fixedly connected to a side of the positioning block 22 away from the moving rod 3 .

[0027] Specifically, the handle 29 can facilitate the tester to rotate and move the connecting plate 4, and facilitate the tester to apply pulling force and pushing force to the connecting plate 4, thereby improving the tester's convenience and control when operating the connecting plate 4 and enhancing the tester's comfort.

[0028] As a preferred technical solution of the present invention, an anti-slip sleeve 14 is provided on the outer wall of the rotating ring 13 .

[0029] Specifically, the material of the anti-slip cover 14 is usually selected from materials with a high friction coefficient, such as rubber, silicone or special synthetic materials. These materials can effectively increase the friction on the surface of the rotating ring 13 to prevent the tester from losing control due to hand slipping when rotating the rotating ring 13. In a wet or oily working environment, the anti-slip cover 14 can also provide a stable grip, ensuring that the tester can accurately adjust the position and angle of the connecting plate 4.

[0030] As a preferred technical solution of the present invention, a plurality of balls 15 are embedded between the inner wall of the rotating groove 11 and the connecting ring 8 .

[0031] Specifically, the embedding of the ball 15 changes the contact mode between the connecting ring 8 and the rotating groove 11 from sliding friction to rolling friction. Rolling friction has a smaller friction coefficient than sliding friction, and thus can significantly reduce energy loss and friction heat during rotation, making the rotation of the connecting ring 8 easier and smoother, reducing resistance to the tester's hands, improving the smoothness and stability of the rotation of the connecting ring 8, and reducing friction loss and maintenance costs.

[0032] As a preferred technical solution of the present invention, a connecting block 19 is fixedly connected to the bottom end of the threaded rod 6 , and a connecting groove 20 corresponding to the position of the connecting block 19 is opened on the surface of the pressure plate 7 .

[0033] Specifically, after the pressing plate 7 contacts the specimen, the rotational connection between the connecting block 19 and the connecting groove 20 allows a certain fine-tuning space for the pressing plate 7 when subjected to pressure, which helps to maintain stable contact between the pressing plate 7 and the specimen and prevent test errors caused by slight unevenness or misalignment.

[0034] As a preferred technical solution of the present invention, anti-slip grooves 21 are provided on the bottom surface of the pressing plate 7 .

[0035] Specifically, the anti-slip grooves 21 enhance the friction between the pressure plate 7 and the test piece, preventing the pressure plate 7 from sliding or shifting during the test, and helping to enhance the stability of the pressure plate 7, so that it can maintain its position even under greater pressure, thereby avoiding test errors caused by the movement of the pressure plate 7.

[0036] As a preferred technical solution of the present invention, a positioning plate 16 is fixedly connected to the top of the threaded rod 6 .

[0037] Specifically, the positioning plate 16 serves as a limit to prevent the threaded rod 6 and the rotating sleeve 9 from being separated.

[0038] As a preferred technical solution of the present invention, two symmetrically positioned limit plates 17 are fixedly connected to the inner wall of the movable groove 5 , and a sliding groove 18 corresponding to the position of the limit plates 17 is opened on the outer wall of the threaded rod 6 .

[0039] Specifically, the cooperation between the limiting plate 17 and the slide groove 18 can ensure that the threaded rod 6 can move up and down stably and will not be driven to rotate by the rotating sleeve 9, thereby avoiding unnecessary rotation.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detector for building engineering quality inspection, comprising a detector body (1), characterized in that: The detector body (1) is fixedly connected to fixed blocks (2) on both sides of the surface, a moving rod (3) is fixedly connected between the two fixed blocks (2), the outer wall of the moving rod (3) is rotatably connected to a connecting plate (4), the cross section of the connecting plate (4) is an inverted U-shaped arrangement, a moving groove (5) is provided in the middle of the connecting plate (4), a threaded rod (6) is slidably connected in the moving groove (5), a connecting ring (8) corresponding to the position of the moving groove (5) is fixedly connected to the middle surface of the connecting plate (4), the outer wall of the connecting ring (8) is rotatably connected to a rotating sleeve (9), the inner wall of the rotating sleeve (9) is provided with a threaded groove (10) corresponding to the position of the threaded rod (6), the bottom of the rotating sleeve (9) is provided with a rotating groove (11) corresponding to the position of the connecting ring (8), the outer wall of the rotating sleeve (9) is fixedly connected to a plurality of rotating rods (12), a rotating ring (13) is installed outside the rotating sleeve (9), the outer end of each rotating rod (12) is fixedly connected to the rotating ring (13), the bottom of the threaded rod (6) is connected to a pressing plate (7), the connecting plate (4) The end away from the moving rod (3) is connected to a positioning assembly, the positioning assembly comprising a positioning block (22), a magnetic column (24), a clamping block (26) and a rotating shaft (27); the end of the connecting plate (4) away from the moving rod (3) is fixedly connected to the positioning block (22); a mounting groove (23) is provided in the positioning block (22); the magnetic column (24) is rotatably connected in the mounting groove (23); both ends of the magnetic column (24) are provided with clamping grooves (25); each clamping groove (25) is slidably connected to A clamping block (26) is connected, and one end of each clamping block (26) away from the magnetic column (24) is fixedly connected to a rotating shaft (27), and one end of the rotating shaft (27) penetrates the outer wall of the positioning block (22). An iron plate (30) is fixedly connected to the side of the surface of the detector body (1) away from the moving rod (3), and the length of the iron plate (30) is not less than the length of the moving rod (3). The position of the iron plate (30) corresponds to that of the positioning block (22), and the upper and lower surfaces of the inner wall of the mounting groove (23) are fixedly connected to copper plates (31).

2. A detector for construction engineering quality detection according to claim 1, characterized in that: One end of the rotating shaft (27) located outside the positioning block (22) is fixedly connected to a rotating block (28).

3. A detector for construction engineering quality detection according to claim 2, characterized in that: A handle (29) is fixedly connected to a side of the positioning block (22) away from the moving rod (3).

4. A detector for construction engineering quality inspection according to claim 3, characterized in that: The outer wall of the rotating ring (13) is provided with an anti-slip sleeve (14).

5. A detector for construction engineering quality inspection according to claim 4, characterized in that: A plurality of balls (15) are embedded between the inner wall of the rotating groove (11) and the connecting ring (8).

6. A detector for construction engineering quality inspection according to claim 5, characterized in that: The bottom end of the threaded rod (6) is fixedly connected to a connecting block (19), and a connecting groove (20) corresponding to the position of the connecting block (19) is formed on the surface of the pressing plate (7).

7. A detector for construction engineering quality inspection according to claim 6, characterized in that: The bottom surface of the pressing plate (7) is provided with anti-slip grooves (21).

8. A detector for construction engineering quality inspection according to claim 7, characterized in that: A positioning plate (16) is fixedly connected to the top end of the threaded rod (6).

9. A detector for construction engineering quality inspection according to claim 8, characterized in that: The inner wall of the movable groove (5) is fixedly connected to two symmetrically positioned limit plates (17), and the outer wall of the threaded rod (6) is provided with a sliding groove (18) corresponding to the position of the limit plates (17).

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