Concrete impermeability test fixture

Abstract

The utility model relates to the technical field of concrete, and discloses a concrete anti-permeability performance test fixture which comprises a square frame, sliding grooves are formed in the front side and the rear side of the interior of the square frame, telescopic rods are fixedly connected to the left side and the right side of the interior of the two sliding grooves, and sliding blocks are fixedly connected to the other ends of the telescopic rods. And one side of each sliding block is rotationally connected with a first rotating block, one side of each first rotating block is fixedly connected with a connecting block, the left side and the right side of each connecting block are each provided with a groove, and the top of each connecting block is rotationally connected with a rotating rod. According to the utility model, the sliding block moves through the telescopic rod, the angle of the rotating block I is changed to adapt to the sizes of different test pieces, the rotating rod is rotated to drive the rack to slide to drive the fixed plate to move, and the rotating rod is rotated to enable the arc-shaped clamping plate to get close to and clamp the concrete test piece from multiple directions, so that the test piece is stable and does not displace or shake.

Description

Technical Field

[0001] This utility model relates to the field of concrete technology, and in particular to a testing fixture for concrete impermeability. Background Technology

[0002] Concrete is a composite material made of cement, aggregate and water in a certain proportion. It is one of the most widely used basic materials in modern construction engineering. It has the characteristics of high strength, good durability and plasticity. Concrete plays a vital role in the construction of various building structures such as high-rise buildings, bridges, dams and underground buildings. It can withstand huge pressure and tension as well as various complex environmental loads, ensuring the stability and safety of buildings.

[0003] Concrete impermeability is a key indicator of concrete’s ability to prevent liquid penetration. In many practical engineering applications, impermeability is directly related to the waterproofing effect and durability of a structure. Concrete with good impermeability can effectively prevent water intrusion and avoid structural strength reduction, cracking or even damage caused by internal steel corrosion and deterioration of concrete material properties. This ensures that the structure can function normally within its design service life and reduces maintenance costs and safety hazards.

[0004] Currently, concrete impermeability performance clamps use a lower and upper hoop to hold the specimen. While this achieves the desired clamping effect, the integrated design of the lower and upper hoops prevents them from being adjusted for different specimen sizes, resulting in poor applicability. Existing technology uses a telescopic sleeve structure at the connection between the lower and upper hoops, changing the hoop diameter by adjusting the sleeve's extension length. However, frequent length adjustments in actual use can cause the fastening bolts to loosen, making the connection between the sleeves unstable and leading to insecure specimen clamping and specimen falling. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a concrete impermeability testing fixture, which aims to improve the problem of loose fastening bolts and unstable specimen clamping caused by frequent adjustments in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a concrete impermeability testing fixture, comprising a square frame, wherein sliding grooves are provided on the front and rear sides of the interior of the square frame, and telescopic rods are fixedly connected to the left and right sides of the interior of two sliding grooves, and sliding blocks are fixedly connected to the other ends of multiple telescopic rods, rotating blocks are rotatably connected to one side of multiple sliding blocks, connecting blocks are fixedly connected to one side of multiple rotating blocks, grooves are provided on the left and right sides of multiple connecting blocks, rotating rods are rotatably connected to the top of multiple connecting blocks, and driving gears are fixedly connected to the bottom ends of multiple rotating rods through the grooves, racks are slidably connected to the front and rear sides of the interior of multiple grooves, and multiple racks are respectively meshed with the front and rear sides of the corresponding driving gears, fixing plates are fixedly connected to one end of multiple racks, rotating blocks are rotatably connected to one side of multiple fixing plates, and arc-shaped clamping plates are fixedly connected to one side of multiple rotating blocks, and an adjustment mechanism is provided at the bottom of the square frame, the adjustment mechanism being used to adjust the height of the square frame.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism includes multiple movable slots, which are respectively opened at the four corners of the top of the square frame. Each movable slot has a column slidably connected inside it. The bottom of each column is fixedly connected to the same base. Each column has multiple limiting holes equidistantly opened on one side. Each of the left and right ends of the square frame is fixedly connected to an L-shaped fixing block. Each of the L-shaped fixing blocks is rotatably connected to a fixing bolt on one side.

[0009] As a further description of the above technical solution:

[0010] Each of the columns has a corresponding horizontal plate fixedly connected to its top, and one end of each of the horizontal plates is connected to the corresponding horizontal plate.

[0011] As a further description of the above technical solution:

[0012] A switch is fixedly connected to the front side of the base, and the switch is electrically connected to the telescopic rod.

[0013] As a further description of the above technical solution:

[0014] The base has four fixed support feet at its bottom corners, and each of the support feet has a rubber pad fixed to its bottom.

[0015] As a further description of the above technical solution:

[0016] Each of the columns has a triangular plate fixedly connected to one side, and the bottom of each triangular plate is fixedly connected to the top of the base.

[0017] As a further description of the above technical solution:

[0018] The two sliding grooves are provided with grooves on the upper and lower sides of the interior, and the upper and lower sides of the multiple sliding blocks are fixedly connected with sliders, and the multiple sliders are respectively slidably connected to the interior of the corresponding pads.

[0019] As a further description of the above technical solution:

[0020] Each of the fixing bolts has a washer slidably connected to its outer wall, and one side of each washer is in contact with a corresponding L-shaped fixing block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the sliding block moves left and right in the sliding groove by activating the telescopic rod. The angle of the connecting block is changed by the rotating block one to adapt to different specimen sizes. The rotating rod drives the drive gear to rotate, which in turn causes the rack to slide and drive the fixed plate to move. The rotating block two adjusts the angle. By rotating the rotating rod, the arc-shaped clamping plate approaches and clamps the concrete specimen from multiple directions, so that the specimen is stable and does not shift or shake during the impermeability test.

[0023] 2. In this utility model, when it is necessary to raise the square frame, the position of the square frame on the column is moved, and the fixing bolts are used to make it pass through the L-shaped fixing block and insert into the corresponding limiting hole, so as to fix the column and the square frame relative to each other, thereby achieving the purpose of determining the height of the square frame. Attached Figure Description

[0024] Figure 1 This is a perspective view of the concrete impermeability testing fixture proposed in this utility model;

[0025] Figure 2 This is a side view of the concrete impermeability testing fixture proposed in this utility model;

[0026] Figure 3 This is a partial structural schematic diagram of the concrete impermeability testing fixture proposed in this utility model;

[0027] Figure 4 This is a structural exploded view of the concrete impermeability testing fixture proposed in this utility model;

[0028] Figure 5 This is a structural breakdown diagram of the adjustment mechanism of the concrete impermeability testing fixture proposed in this utility model.

[0029] Legend:

[0030] 1. Square frame; 2. Adjustment mechanism; 201. Moving groove; 202. Column; 203. Base; 204. Limiting hole; 205. L-shaped fixing block; 206. Fixing bolt; 3. Sliding groove; 4. Telescopic rod; 5. Sliding block; 6. Rotating block one; 7. Connecting block; 8. Groove; 9. Rotating rod; 10. Drive gear; 11. Rack; 12. Fixing plate; 13. Rotating block two; 14. Arc-shaped clamp; 15. Horizontal plate; 16. Switch; 17. Support foot; 18. Rubber pad; 19. Triangle plate; 20. Slide groove; 21. Slider; 22. Washer. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a concrete impermeability testing fixture, comprising a square frame 1, which provides the framework for the entire fixture. The square frame 1 has sliding grooves 3 on both its front and rear sides, providing sliding space for subsequent components. Telescopic rods 4 are fixedly connected to the left and right sides of the interior of each sliding groove 3, allowing connected components to extend and retract within a certain range. Sliding blocks 5 are fixedly connected to the other ends of the multiple telescopic rods 4, allowing the sliding blocks 5 to slide left and right within the sliding grooves 3. Rotating blocks 6 are rotatably connected to one side of each of the multiple sliding blocks 5, allowing the connection direction to be changed. Connecting blocks 7 are fixedly connected to one side of each of the multiple rotating blocks 6, serving to connect other components. Grooves 8 are provided on the left and right sides of each of the multiple connecting blocks 7, providing accommodating space for internal components. Rotating rods 9 are rotatably connected to the top of each of the multiple connecting blocks 7, allowing rotation of other components. The bottom ends of the multiple rotating rods 9 penetrate the grooves 8 and are fixedly connected to a drive gear 10, which can rotate... When in motion, it interacts with the rack 11. The rack 11 is slidably connected to the front and rear sides of the interior of the multiple grooves 8. The rack 11 can slide back and forth in the grooves 8. The multiple racks 11 are respectively meshed with the front and rear sides of the corresponding drive gear 10. One end of the multiple racks 11 is fixedly connected to the fixing plate 12. The fixing plate 12 can be fixedly connected to other components. One side of the multiple fixing plates 12 is rotatably connected to the rotating block 23. The rotating block 23 can readjust the connection angle. One side of the multiple rotating block 23 is fixedly connected to the arc-shaped clamping plate 14. The arc-shaped clamping plate 14 is used to clamp the concrete specimen. The bottom of the square frame 1 is provided with the adjustment mechanism 2. The adjustment mechanism 2 is used to adjust the height of the square frame 1. The upper and lower sides of the interior of the two sliding grooves 3 are provided with sliding grooves 20. The sliding grooves 20 provide a sliding path for the slider 21. The upper and lower sides of the multiple sliding blocks 5 are fixedly connected to the slider 21. The slider 21 can slide in the sliding groove 20. The multiple sliders 21 are respectively slidably connected to the interior of the corresponding pads 22. The pads 22 can play a role in buffering or adjusting the gap.

[0033] Reference Figure 2 and Figure 5The adjustment mechanism 2 includes multiple moving slots 201, which provide a guide path for the vertical movement of the columns 202. The multiple moving slots 201 are respectively located at the four top corners of the square frame 1, defining the connection position between the adjustment mechanism 2 and the square frame 1. Columns 202 are slidably connected inside each of the multiple moving slots 201, allowing the columns 202 to slide freely up and down within the slots to change the height of the square frame 1. The bottom ends of each of the multiple columns 202 are fixedly connected to the same base 203, which supports the entire fixture and ensures its stable placement. Multiple limiting holes 204 are equidistantly provided on one side of each of the multiple columns 202. 04 provides a fixed position selection for the fixing bolts 206. Both ends of the square frame 1 are fixedly connected to L-shaped fixing blocks 205. The L-shaped fixing blocks 205 provide the installation base for the fixing bolts 206. The fixing bolts 206 are rotatably connected to one side of the multiple L-shaped fixing blocks 205. The fixing bolts 206 can be fixed or loosened by rotating the column 202. The outer walls of the multiple fixing bolts 206 are slidably connected to washers 22. The washers 22 can play a buffering and sealing role between the fixing bolts 206 and the L-shaped fixing blocks 205. One side of the multiple washers 22 is in contact with the corresponding L-shaped fixing blocks 205 to ensure the tightness and stability of the connection.

[0034] Reference Figure 1 Each of the multiple uprights 202 has a corresponding horizontal plate 15 fixedly connected to its top. The horizontal plate 15 enhances the connection stability between the tops of the uprights 202. One end of each horizontal plate 15 is connected to a corresponding horizontal plate 15, forming a single integrated structure. A switch 16 is fixedly connected to the front of the base 203. The switch 16 controls the start and stop of related components. The switch 16 is electrically connected to the telescopic rod 4, allowing the telescopic rod 4 to be extended or retracted via the switch 16. Support feet 1 are fixedly connected to the four corners of the bottom of the base 203. 7. Support feet 17 provide bottom support points for the entire fixture. Rubber pads 18 are fixedly connected to the bottom of multiple support feet 17. Rubber pads 18 can increase the friction between support feet 17 and the placement surface and play a buffering role. Triangle plates 19 are fixedly connected to one side of multiple columns 202. Triangle plates 19 can strengthen the connection between columns 202 and base 203. The bottom of multiple triangle plates 19 is fixedly connected to the top of base 203 to ensure that triangle plates 19 are stably fixed on base 203 so as to better play their role in strengthening the connection.

[0035] Working principle: When using the concrete impermeability test fixture, the concrete specimen is first placed inside the square frame 1. Activating the telescopic rod 4 allows the sliding block 5 to move stably left and right within the sliding groove 3. The rotating block 6 connected to one side of the sliding block 5 can change the angle of the connecting block 7 to better adapt to concrete specimens of different sizes. When the rotating rod 9 is rotated, the driving gear 10 fixed at its bottom rotates accordingly. The rotation of the driving gear 10 will drive the rack 11 to slide back and forth within the groove 8. The fixing plate 12 fixed at one end of the rack 11 will move with the sliding of the rack 11. The rotating block 13 connected to one side of the fixing plate 12 can further adjust the angle to ensure the flexibility of the connection with the arc-shaped clamp 14. Finally, by rotating the rotating rod 9, multiple arc-shaped clamps 14 approach the concrete specimen from different directions and fix it tightly within the square frame 1, thereby ensuring that the concrete specimen will not shift or shake during the impermeability test.

[0036] Furthermore, when it is necessary to raise the square frame 1, push the column 202 upward so that it drives the base 203 to rise together. Adjust the column 202 to the appropriate position according to the required height. At this time, the multiple limiting holes 204 opened on one side of the column 202 can be used to insert the fixing bolt 206 rotatably connected to the side of the L-shaped fixing block 205. By tightening the fixing bolt 206, it passes through the L-shaped fixing block 205 and is inserted into the corresponding limiting hole 204, thereby fixing the column 202 relative to the square frame 1, restricting the movement of the column 202, and thus determining the height of the square frame 1.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A concrete impermeability testing fixture, comprising a square frame (1), characterized in that: The square frame (1) has sliding grooves (3) on both the front and back sides. Telescopic rods (4) are fixedly connected to the left and right sides of each sliding groove (3). Sliding blocks (5) are fixedly connected to the other ends of each telescopic rod (4). Rotating blocks (6) are rotatably connected to one side of each sliding block (5). Connecting blocks (7) are fixedly connected to one side of each rotating block (6). Grooves (8) are provided on the left and right sides of each connecting block (7). Rotating rods (9) are rotatably connected to the top of each connecting block (7). The bottom ends of each rotating rod (9) penetrate the grooves (8) and... A drive gear (10) is fixedly connected. Racks (11) are slidably connected to the front and rear sides of the interior of the multiple grooves (8). The multiple racks (11) are respectively meshed with the front and rear sides of the corresponding drive gear (10). A fixing plate (12) is fixedly connected to one end of the multiple racks (11). A rotating block (13) is rotatably connected to one side of the multiple fixing plates (12). An arc-shaped clamp (14) is fixedly connected to one side of the multiple rotating blocks (13). An adjustment mechanism (2) is provided at the bottom of the square frame (1). The adjustment mechanism (2) is used to adjust the height of the square frame (1).

2. The concrete impermeability testing fixture according to claim 1, characterized in that: The adjustment mechanism (2) includes multiple moving slots (201), which are respectively opened at the four corners of the top of the square frame (1). Each of the multiple moving slots (201) is slidably connected to a column (202). The bottom of each of the multiple columns (202) is fixedly connected to the same base (203). Each of the multiple columns (202) has multiple limiting holes (204) equidistantly opened on one side. Each of the left and right sides of the square frame (1) is fixedly connected to an L-shaped fixing block (205). Each of the multiple L-shaped fixing blocks (205) is rotatably connected to a fixing bolt (206) on one side.

3. The concrete impermeability testing fixture according to claim 2, characterized in that: Each of the columns (202) has a corresponding horizontal plate (15) fixedly connected to its top, and one end of each of the horizontal plates (15) is connected to the corresponding horizontal plate (15).

4. The concrete impermeability testing fixture according to claim 2, characterized in that: A switch (16) is fixedly connected to the front side of the base (203), and the switch (16) is electrically connected to the telescopic rod (4).

5. The concrete impermeability testing fixture according to claim 2, characterized in that: The base (203) has four fixed support feet (17) at the bottom corners, and the bottom of each of the support feet (17) has a fixed rubber pad (18).

6. The concrete impermeability testing fixture according to claim 2, characterized in that: Each of the columns (202) has a triangular plate (19) fixedly connected to one side, and the bottom of each of the triangular plates (19) is fixedly connected to the top of the base (203).

7. The concrete impermeability testing fixture according to claim 1, characterized in that: The two sliding grooves (3) are provided with sliding grooves (20) on the upper and lower sides, and the upper and lower sides of the multiple sliding blocks (5) are fixedly connected with sliders (21), and the multiple sliders (21) are respectively slidably connected to the interior of the corresponding pads (22).

8. The concrete impermeability testing fixture according to claim 2, characterized in that: The outer walls of the plurality of fixing bolts (206) are slidably connected with washers (22), and one side of each of the plurality of washers (22) is in contact with the corresponding L-shaped fixing block (205).

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