Water permeability testing equipment for lightweight concrete block

Abstract

The utility model relates to the technical field of water permeability testing, in particular to light concrete block water permeability testing equipment which comprises a detection table, a mounting groove is formed in one end of the top of the detection table, and a filter frame is mounted in the mounting groove. After the test mold is driven to descend to be tightly attached to the top of the concrete block, water is injected into the test mold for water permeability test, and the situation that water leaks from the bottom of the test mold, water loss is caused, and the test accuracy is affected is avoided by arranging a sealing gasket; the two movable blocks oppositely move to drive the connecting plate to move, the test mold is clamped by four groups of limiting frames, the disassembly and assembly are convenient, the test molds with different pipe diameters can be conveniently limited and fixed, and the permeation amounts of concrete blocks and water in different contact areas can be conveniently tested by replacing the test molds with different pipe diameters, so that the test result is more accurate, and the practicability is better.

Description

Technical Field

[0001] This application relates to the technical field of permeability testing, and in particular to a permeability testing device for lightweight concrete blocks. Background Technology

[0002] Lightweight concrete, also known as lightweight concrete or foamed concrete, is a new type of building material that incorporates a large number of closed air bubbles into concrete, giving it excellent properties such as light weight, heat insulation, sound insulation, and thermal insulation.

[0003] A concrete permeability testing device is disclosed on the Chinese Patent Network (publication number CN212904414U). It includes a support column and a mounting frame fixedly connected to the support column. The device further includes a connecting arm, one end of which is connected to the mounting frame, and the other end of which is provided with a first connecting block; and a burette, on which a second connecting block is provided, the second connecting block being magnetically connected to the first connecting block. Using this embodiment, the burette can be installed via a simple magnetic connection, improving the ease of use of the testing device.

[0004] The proposed solution also has the following drawbacks: when testing concrete blocks, the device directly drips water onto the concrete blocks through a test tube. This causes excess water to leak out directly from the surface before it can penetrate, which affects the accuracy of the test.

[0005] Therefore, in order to solve the above problems, this application provides a permeability testing device for lightweight concrete blocks. Utility Model Content

[0006] The purpose of this invention is to provide a permeability testing device for lightweight concrete blocks to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a permeability testing device for lightweight concrete blocks, comprising a testing platform, an installation groove at one end of the top of the testing platform, a filter frame installed inside the installation groove, a support frame installed at the end of the top of the testing platform away from the installation groove, a sleeve installed on the outer ring surface of the support frame, a connecting rod installed at one end of the outer side of the sleeve, a fixing frame installed at the end of the connecting rod away from the sleeve, a bidirectional threaded rod installed between the narrower side walls inside the fixing frame, movable blocks symmetrically installed at both ends of the outer side of the bidirectional threaded rod, a connecting plate installed on one side of the outer side of the movable block, two sets of limiting frames symmetrically installed on the outer side of the connecting plate, a testing mold commonly arranged between the outer sides of the limiting frames, and a sealing gasket installed at one bottom end of the testing mold.

[0008] Preferably, the top of the testing platform and the two sides of the mounting groove are symmetrically equipped with fixing ears, and fastening bolts are installed on the fixing ears. A limit plate is installed on one end of the fastening bolt.

[0009] Preferably, a first servo motor is installed at one bottom end of the outer ring surface of the support frame, and an active bevel gear is installed inside the support frame through the output shaft of the first servo motor. A threaded rod is installed between the top and bottom of the inner side of the support frame, and a driven bevel gear is installed at one bottom end of the outer ring surface of the threaded rod. The active bevel gear and the driven bevel gear mesh with each other.

[0010] Preferably, the support frame has symmetrical grooves at both ends of its outer surface, and a cylindrical block is threadedly connected to the outer ring surface of the threaded rod. A fixing column is installed at both ends of the outer ring surface of the cylindrical block and inside the two grooves. One end of each fixing column is connected to the inner wall of the sleeve.

[0011] Preferably, a second servo motor is installed at one end of the outer side of the fixed frame. The output shaft of the second servo motor passes through the interior of the fixed frame and is connected to one end of a bidirectional threaded rod. The outer ring surface of the bidirectional threaded rod is threadedly connected to the interior of the two movable blocks.

[0012] Preferably, a collection box is installed at the bottom of the testing station and on the mounting slot.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This device for testing the permeability of lightweight concrete blocks lowers a test mold to press against the top of the concrete block before water is injected into the mold to conduct the permeability test. A sealing gasket prevents water from seeping out from the bottom of the mold, thus ensuring accuracy. A second servo motor drives a bidirectional threaded rod to rotate, causing two movable blocks to move in opposite directions, which in turn moves a connecting plate. Four sets of limiting frames clamp the test mold, making assembly and disassembly convenient. This allows for easy positioning and fixing of test molds with different pipe diameters. By changing the test molds to different pipe diameters, it is possible to test the permeability of the concrete block at different contact areas with water, resulting in more accurate test results and improved practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a utility model Figure 1 Top view of the structure;

[0017] Figure 3 This is a utility model Figure 1 Partial structural diagram;

[0018] Figure 4 This is a utility model Figure 3 A partial internal diagram of the structure.

[0019] Explanation of reference numerals in the attached drawings: 1. Testing table; 101. Mounting groove; 2. Filter frame; 3. Support frame; 301. Slide groove; 4. Sleeve; 5. Connecting rod; 6. Fixed frame; 7. Bidirectional threaded rod; 8. Movable block; 9. Connecting plate; 10. Limiting frame; 11. Test mold; 12. Sealing gasket; 13. Fixing ear; 14. Fastening bolt; 15. Limiting plate; 16. First servo motor; 17. Driving bevel gear; 18. Driven bevel gear; 19. Threaded rod; 1901. Cylindrical block; 20. Fixed column; 21. Second servo motor; 22. Collection box. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0021] A permeability testing device for lightweight concrete blocks, referring to Figure 1 - Figure 4 The test platform includes a test bench 1. A mounting groove 101 is provided at one end of the top of the test bench 1. A filter frame 2 is installed inside the mounting groove 101. A support frame 3 is installed at the end of the top of the test bench 1 away from the mounting groove 101. A sleeve 4 is installed on the outer ring surface of the support frame 3. A connecting rod 5 is installed at one end of the outer side of the sleeve 4. A fixing frame 6 is installed at the end of the connecting rod 5 away from the sleeve 4. A bidirectional threaded rod 7 is installed between the narrower side walls inside the fixing frame 6. Movable blocks 8 are symmetrically installed at both ends of the bidirectional threaded rod 7. A connecting plate 9 is installed on one side of the outer side of the movable block 8. Two sets of limiting frames 10 are symmetrically installed on the outer side of the connecting plate 9. A test mold 11 is provided between the outer sides of the limiting frames 10. A sealing gasket 12 is installed at one end of the bottom of the test mold 11.

[0022] Reference Figure 1 - Figure 2 On the top of the testing platform 1 and on both sides of the mounting groove 101, there are symmetrically installed fixing ears 13. Fastening bolts 14 are installed on the fixing ears 13. One end of the fastening bolts 14 is equipped with a limiting plate 15. By rotating the fastening bolts 14, the position of the limiting plate 15 can be adjusted so that the two limiting plates 15 can move relative to each other on the filter frame 2 to limit and fix the concrete block.

[0023] Reference Figure 1 - Figure 4A first servo motor 16 is mounted at one bottom end of the outer ring surface of the support frame 3. The output shaft of the first servo motor 16 passes through the interior of the support frame 3 and is fitted with a driving bevel gear 17. A threaded rod 19 is mounted between the top and bottom of the inner side of the support frame 3. A driven bevel gear 18 is mounted at one bottom end of the outer ring surface of the threaded rod 19. The driving bevel gear 17 and the driven bevel gear 18 mesh with each other. The first servo motor 16 drives the driving bevel gear 17 to rotate, thereby driving the driven bevel gear 18 and the threaded rod. The threaded rod 19 rotates synchronously. The support frame 3 has symmetrical grooves 301 at both ends of its outer side. A cylindrical block 1901 is threadedly connected to the outer ring surface of the threaded rod 19. A fixing column 20 is installed at both ends of the outer ring surface of the cylindrical block 1901 and inside the two grooves 301. One end of the fixing column 20 is connected to the inner side wall of the sleeve 4. When the threaded rod 19 rotates, the sleeve 4 is connected to the cylindrical block 1901 on the threaded rod 19 through the fixing column 20, so as to achieve vertical lifting and lowering, thereby adjusting the height of the test mold 11.

[0024] Reference Figure 1 A second servo motor 21 is installed at one end of the fixed frame 6. The output shaft of the second servo motor 21 passes through the interior of the fixed frame 6 and is connected to one end of the bidirectional threaded rod 7. The outer ring surface of the bidirectional threaded rod 7 is threadedly connected to the interior of the two movable blocks 8. The second servo motor 21 drives the bidirectional threaded rod 7 to rotate, and the two movable blocks 8 move towards each other, causing the connecting plate 9 to move. The test mold 11 is clamped by four sets of limit frames 10, which facilitates the limitation and fixation of test molds 11 with different pipe diameters. By changing the test mold 11 with different pipe diameters, it is convenient to test the permeability of concrete blocks with different contact areas with water. The test mold 11 is hollow. After the test mold 11 is lowered and pressed against the top of the concrete block, water is injected into the test mold 11 to conduct a water permeability test. By setting a sealing gasket 12, water is prevented from seeping out from the bottom of the test mold 11, which would cause water loss and affect the accuracy of the test.

[0025] Reference Figure 1 A collection box 22 is installed at the bottom of the test platform 1 and on the mounting groove 101. During the test, water flows through the concrete block to the filter frame 2 and then into the collection box 22 for collection.

[0026] The implementation principle of the permeability testing device for lightweight concrete blocks in this application embodiment is as follows: When using the device, the position of the limiting plate 15 can be adjusted by rotating the fastening bolt 14, so that the two limiting plates 15 move relative to each other on the filter frame 2 to limit and fix the concrete block. The first servo motor 16 drives the active bevel gear 17 to rotate, which drives the driven bevel gear 18 and the threaded rod 19 to rotate synchronously. When the threaded rod 19 rotates, the sleeve 4 is connected to the cylindrical block 1901 on the threaded rod 19 through the fixed column 20 to achieve vertical lifting and lowering, thereby adjusting the height of the test mold 11. The test mold 11 is hollow. By driving the test mold 11 to descend and closely adhere to the top of the concrete block, it moves backward. Water is injected into the test mold 11 for permeability testing. A sealing gasket 12 is used to prevent water from seeping out from the bottom of the test mold 11, which would cause water loss and affect the accuracy of the test. During the test, the water flows through the concrete block to the filter frame 2 and then into the collection box 22 for collection. The second servo motor 21 drives the bidirectional threaded rod 7 to rotate, and the two movable blocks 8 move towards each other, driving the connecting plate 9 to move. The test mold 11 is clamped by four sets of limit frames 10, which are easy to assemble and disassemble and facilitate the limitation and fixation of test molds 11 with different pipe diameters. By changing the test mold 11 with different pipe diameters, it is convenient to test the permeability of concrete blocks with different contact areas with water, so as to make the test results more accurate and more practical.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A permeability testing device for lightweight concrete blocks, comprising a testing platform (1), characterized in that: The top end of the testing platform (1) is provided with an installation groove (101). A filter frame (2) is installed inside the installation groove (101). A support frame (3) is installed at the top end of the testing platform (1) away from the installation groove (101). A sleeve (4) is installed on the outer ring surface of the support frame (3). A connecting rod (5) is installed at the outer end of the sleeve (4). A fixing frame (6) is installed at the end of the connecting rod (5) away from the sleeve (4). A bidirectional threaded rod (7) is installed between the narrower side walls inside the fixing frame (6). Movable blocks (8) are symmetrically installed at both ends of the bidirectional threaded rod (7). A connecting plate (9) is installed on one side of the outer side of the movable block (8). Two sets of limiting frames (10) are symmetrically installed on the outer side of the connecting plate (9). A test mold (11) is set together between the outer sides of the limiting frames (10). A sealing gasket (12) is installed at the bottom end of the test mold (11).

2. The permeability testing device for lightweight concrete blocks according to claim 1, characterized in that: Fixing ears (13) are symmetrically installed on the top of the testing platform (1) and on both sides of the mounting groove (101). Fastening bolts (14) are installed on the fixing ears (13), and a limit plate (15) is installed on one end of the fastening bolts (14).

3. The permeability testing device for lightweight concrete blocks according to claim 1, characterized in that: A first servo motor (16) is installed at one end of the bottom of the outer ring surface of the support frame (3). The output shaft of the first servo motor (16) passes through the inside of the support frame (3) and is equipped with an active bevel gear (17). A threaded rod (19) is installed between the top and bottom of the inner side of the support frame (3). A driven bevel gear (18) is installed at one end of the bottom of the outer ring surface of the threaded rod (19). The active bevel gear (17) and the driven bevel gear (18) mesh with each other.

4. The permeability testing device for lightweight concrete blocks according to claim 1, characterized in that: The support frame (3) has symmetrical grooves (301) at both ends of its outer side. A cylindrical block (1901) is threadedly connected to the outer ring surface of the threaded rod (19). A fixing column (20) is installed at both ends of the outer ring surface of the cylindrical block (1901) and inside the two grooves (301). One end of the fixing column (20) is connected to the inner wall of the sleeve (4).

5. The permeability testing device for lightweight concrete blocks according to claim 1, characterized in that: A second servo motor (21) is installed on one end of the fixed frame (6). The output shaft of the second servo motor (21) passes through the interior of the fixed frame (6) and is connected to one end of the bidirectional threaded rod (7). The outer ring surface of the bidirectional threaded rod (7) is threadedly connected to the interior of the two movable blocks (8).

6. The permeability testing device for lightweight concrete blocks according to claim 1, characterized in that: A collection box (22) is installed at the bottom of the testing station (1) and on the mounting slot (101).

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