A concrete light batten impermeability test device

Abstract

The utility model discloses a kind of concrete light strip board penetration resistance test device, technical scheme is as follows: including upper and lower end upper pressing plate and bottom plate, upper pressing plate and bottom plate are connected by multiple connecting pull rods and are connected, the upper pressing plate upper portion is fixed with measuring cylinder, and the connecting pull rod installed on diagonal bottom plate is installed with sliding frame, the side of this sliding frame is connected with the adjusting clamping block of adapting different restriction light test block size, the utility model is set up on the diagonal threaded connecting rod of connecting bottom plate, upper pressing plate L-shaped limiting block that can slide up and down, through the cooperation design of sliding frame and adjusting clamping block, the position of light test block can be positioned quickly, the problem that traditional device adjustment time-consuming, positioning inaccuracy is solved, with the advantages of improving test efficiency, ensuring positioning accuracy, enhancing sealing stability and prolonging the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of lightweight concrete slabs with impermeability, specifically to a test device for impermeability of lightweight concrete slabs. Background Technology

[0002] In the construction industry, lightweight concrete panels, as a new type of wall material, have impermeability as a crucial indicator of product quality. Current methods for assessing the impermeability of lightweight concrete panels have significant operational flaws: Testers must place test blocks from the same batch between a base plate (1) and an upper pressure plate (2), manually adjust the center position of the samples using a measuring tape, and then seal the test blocks by tightening the upper pressure plate with a threaded rod and nut. Water is then injected into a transparent acrylic tube above, applying continuous static pressure (typically 0.05 MPa) to the sample. Afterward, the back of the sample is observed for a specified time (e.g., 24 hours) to determine if water seepage or dampness appears, thus assessing whether the panel's impermeability meets the standards.

[0003] Repeatedly adjusting the position of multiple samples from the same batch is time-consuming and makes it difficult to guarantee positioning accuracy, significantly increasing test preparation time. More seriously, manual adjustments can easily lead to incomplete sealing, affecting the stability of hydrostatic pressure application and causing deviations in test data. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a test device for the impermeability of lightweight concrete strip panels.

[0005] This utility model is achieved through the following technical solution:

[0006] This application provides a test device for the impermeability of lightweight concrete strip panels. The technical solution is as follows: it includes an upper pressure plate and a bottom plate at the upper and lower ends. The upper pressure plate and the bottom plate are connected by multiple connecting rods. A measuring cylinder is fixedly connected to the upper part of the upper pressure plate. A sliding frame is installed on the connecting rods installed on the diagonal bottom plate. The side of the sliding frame is connected to an adjusting block that can adapt to different sizes of lightweight test blocks.

[0007] Furthermore, this application also proposes that the connecting rod includes a connecting rod that is fixed perpendicularly to the base plate, and the top of the connecting rod is provided with a threaded rod that passes through the upper pressure plate, and a nut for pressing the upper pressure plate is screwed onto the threaded rod.

[0008] Furthermore, this application also proposes that a base supporting a lightweight test block is provided on the upper part of the base plate, and a frame-shaped sealing strip to prevent leakage is placed on the top of the lightweight test block.

[0009] Furthermore, this application also proposes that the sliding frame includes a sliding sleeve fitted on the connecting rod, and an L-shaped limiting block is connected to the side of the sliding sleeve. Multiple adjusting blocks for limiting lightweight test blocks of different specifications are installed inside the L-shaped limiting block.

[0010] Furthermore, this application also proposes that the connecting rod is provided with a limiting protrusion, and the sliding sleeve is provided with a sliding groove that matches the limiting protrusion.

[0011] Furthermore, this application also proposes that the height of the L-shaped limiting block of the sliding frame is lower than the thickness of the base.

[0012] Compared with existing technologies, the advantages of this utility model are as follows: By setting an L-shaped limiting block that can slide up and down on the diagonal threaded connecting rod of the connecting base plate and the upper pressure plate, and through the cooperative design of the sliding frame and the adjusting block, the position of the lightweight test block can be quickly positioned, which solves the problems of time-consuming adjustment and inaccurate positioning of traditional devices. It has the advantages of improving test efficiency, ensuring positioning accuracy, enhancing sealing stability and extending the service life of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the installation of a practical lightweight test block;

[0015] In the diagram: 1. Base plate; 2. Upper pressure plate; 3. Connecting rod; 4. Threaded rod; 5. Measuring cylinder; 6. Lightweight test block; 7. Base; 8. Sealing strip; 9. Limiting protrusion; 10. Sliding sleeve; 11. L-shaped limiting block; 12. Adjusting block. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0017] like Figure 1 As shown, this application proposes a test device for the impermeability of lightweight concrete strip panels, including an upper pressure plate and a bottom plate at the upper and lower ends. The upper pressure plate and the bottom plate are connected by multiple connecting rods. A measuring cylinder is fixedly connected to the upper part of the upper pressure plate, and a sliding frame is installed on the connecting rods installed on the diagonal bottom plate. The side of the sliding frame is connected to an adjusting block that can adapt to different sizes of lightweight test blocks.

[0018] The upper pressure plate and the bottom plate form a rigid frame structure through connecting rods. The measuring cylinder is used to apply hydrostatic pressure to the test block. The sliding frame is longitudinally positioned by connecting rods, and the adjusting blocks connected to its side can move laterally to accommodate different test block widths. Specifically, the adjusting blocks can adopt a threaded adjustment structure or a magnetic connection. Preferably, there are six connecting rods symmetrically distributed at the four corners of the bottom plate and the center of the front and rear ends. The sliding frame can be installed on any two diagonally opposite rods. The measuring cylinder is usually made of transparent glass and has graduation markings for easy observation of water level changes.

[0019] This device, through the cooperation of a sliding frame and an adjusting block, solves the problem of repeatedly measuring and adjusting the position of the test block in traditional experiments. The adjusting block can directly limit the lateral position of the test block without the need for measuring tape, significantly improving operational efficiency. Meanwhile, the diagonally arranged sliding frame structure ensures the stability of the test block positioning and avoids installation interference problems caused by fixing it on all four sides. Compared with existing technologies, this solution achieves rapid and accurate positioning of the test block through a modular adjustment mechanism, simplifying the experimental preparation process.

[0020] Furthermore, this application also proposes that the connecting rod includes a connecting rod that is fixed perpendicularly to the base plate, and the top of the connecting rod is provided with a threaded rod that passes through the upper pressure plate, and a nut for pressing the upper pressure plate is screwed onto the threaded rod.

[0021] Specifically, the connecting rod and the base plate are vertically connected by welding or bolting. The threaded rod can use standard metric or imperial threads, with a preferred diameter range of 8-16mm to meet different pressure requirements. The nut is a hexagonal nut or a wing nut, which provides adjustable clamping to the upper pressure plate through threaded engagement. As a preferred embodiment, the threaded rod and the connecting rod are manufactured using a one-piece molding process to ensure structural strength.

[0022] Therefore, this technical solution achieves adjustable upper pressure plate height and controllable clamping force through the mating structure of the threaded rod and nut. Compared with traditional fixed pressure plates, it can adapt to the sealing requirements of test blocks of different thicknesses, while maintaining a constant clamping force through the self-locking characteristic of the thread, avoiding seal failure during hydrostatic testing. In practice, operators only need to rotate the nut to position the pressure plate, without the need for repeated adjustments using additional tools, significantly improving testing efficiency.

[0023] Furthermore, this application also proposes that a base supporting a lightweight test block is provided on the upper part of the base plate, and a frame-shaped sealing strip to prevent leakage is placed on the top of the lightweight test block.

[0024] Specifically, the base can be made of metal or high-strength plastic, and its surface can be textured with anti-slip patterns to enhance friction with the lightweight test block. The base is preferably rectangular in shape, slightly smaller than the lightweight test block, to facilitate accurate positioning. The frame-type sealing strip can be made of rubber or silicone, and its inner frame dimensions match the outer edge of the lightweight test block, achieving a tight fit through elastic deformation.

[0025] Therefore, this technical solution achieves test block support by setting a dedicated base on the bottom plate, avoiding the cumbersome operation of repeated measurements with a measuring tape required in traditional methods. Simultaneously, the application of a frame-type sealing strip effectively solves the sealing problem between the test block and the device, preventing lateral leakage of moisture during the test. Compared with existing technologies, this solution significantly improves testing efficiency, ensures the accuracy of test data, and is simple, reliable, and easy to implement.

[0026] Furthermore, this application also proposes that the sliding frame includes a sliding sleeve fitted on the connecting rod, and an L-shaped limiting block is connected to the side of the sliding sleeve. Multiple adjusting blocks for limiting lightweight test blocks of different specifications are installed inside the L-shaped limiting block.

[0027] The sliding sleeve achieves longitudinal sliding through an internal groove that engages with a limiting protrusion on the connecting rod, while the axial rotation of the sliding sleeve is restricted by the limiting protrusion. The vertical portion of the L-shaped limiting block is fixedly connected to the sliding sleeve, while the horizontal portion extends towards the lightweight test block. The adjusting block is installed inside the L-shaped limiting block via a threaded connection or magnetic attraction.

[0028] This technical solution achieves rapid positioning and fixation of lightweight test blocks of different batches through a sliding L-shaped limiting block and an adjustable locking block structure. Specifically, during operation, simply slide the entire sliding frame up and down along the connecting rod, and then adjust the position of the locking block to complete the test block positioning, eliminating the need for repeated measurements and adjustments using a measuring tape. This solves the technical problem of requiring multiple measurements and adjustments in existing technologies, improving testing efficiency. Compared with existing technologies, this solution replaces manual measurement with mechanical positioning, ensuring positioning accuracy while simplifying the operation process.

[0029] Furthermore, this application proposes to provide a limiting protrusion on the connecting rod, and a sliding sleeve with a groove matching the limiting protrusion. The limiting protrusion extends axially along the connecting rod, and its cross-sectional shape can be rectangular, trapezoidal, or semi-circular. The shape of the sliding groove is adapted to the limiting protrusion, so that the sliding sleeve can only move axially along the connecting rod and cannot rotate.

[0030] Specifically, this technical solution effectively prevents the sliding sleeve from rotating on the connecting rod through the cooperation of the limiting protrusion and the sliding groove, ensuring that the adjusting block always maintains a perpendicular alignment with the lightweight test block. This solves the problem in existing technologies where the sliding frame easily deflects, leading to poor contact between the adjusting block and the test block. Compared to existing technologies, this structure is simple and reliable, achieving directional movement of the sliding sleeve without the need for additional locking devices, allowing operators to quickly and accurately adjust the position of the adjusting block. Simultaneously, the cooperation of the limiting protrusion and the sliding groove also provides a guiding function, making the movement of the sliding sleeve more stable and smooth.

[0031] Furthermore, this application also proposes that the height of the L-shaped limiting block of the sliding frame is lower than the thickness of the base. Specifically, the height of the L-shaped limiting block is designed to be lower than the thickness of the base, thereby ensuring that the L-shaped limiting block will not interfere with the vertical positioning of the test block when placing a lightweight test block. Specifically, when the operator places the test block on the base, because the height of the limiting block is lower than the base, the limiting block will not affect the test block placed laterally.

[0032] The implementation principle of the concrete lightweight slab impermeability test device in this application embodiment is as follows:

[0033] First, adjust the number of L-shaped limiting blocks 11 according to the dimensions of multiple lightweight test blocks 6 in the same batch, so that the inner spacing of two diagonally opposite L-shaped limiting blocks 11 matches the dimensions of the lightweight test block 6. After adjusting the dimensions, tighten the locking nut on the threaded rod 4 to a certain height, lift the upper pressure plate 2, and then push the lightweight test block 6 from the side into the upper part of the base 7. After placement, move the sliding frame at the bottom upwards (e.g., Figure 2 As shown, the sliding sleeve 10 of the sliding frame moves upward along the connecting rod 3. While moving upward, the position of the lightweight test block 6 is adjusted so that it is between the two L-shaped limiting blocks 11. In this way, the adjusting block 12 fixed inside the L-shaped limiting block 11 will be located at the diagonal positions on both sides of the lightweight test block 6, so as to achieve precise positioning of the lightweight test block 6. After positioning, a frame-shaped sealing strip 8 is placed on the top of the lightweight test block 6. The locking nut on the upper pressure plate 2 is tightened to press the sealing strip 8 tightly and seal it. Then, the water injection penetration test can be carried out.

[0034] The design of the sliding frame and adjusting block allows for quick positioning of lightweight test blocks, solving the problems of time-consuming adjustment and inaccurate positioning in traditional devices. It has the advantages of improving test efficiency, ensuring positioning accuracy, enhancing sealing stability, and extending the service life of the device.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A test device for impermeability of lightweight concrete slabs, comprising an upper pressure plate (2) and a bottom plate (1) at the upper and lower ends, the upper pressure plate (2) and the bottom plate (1) being connected by multiple connecting rods, wherein a measuring cylinder (5) is fixedly connected to the upper part of the upper pressure plate (2), characterized in that: A sliding frame is installed on the connecting rod mounted on the diagonal base plate (1), and the side of the sliding frame is connected to an adjusting block (12) that is adapted to different sizes of lightweight test blocks (6).

2. The concrete lightweight slab impermeability testing device according to claim 1, characterized in that: The connecting rod includes a connecting rod (3) that is vertically fixed to the base plate (1). The top of the connecting rod (3) is provided with a threaded rod (4) that passes through the upper pressure plate (2). A nut that presses the upper pressure plate (2) is screwed onto the threaded rod (4).

3. The concrete lightweight slab impermeability testing device according to claim 2, characterized in that: The base plate (1) is provided with a base (7) supporting the lightweight test block (6), and a frame-shaped sealing strip (8) to prevent leakage is placed on the top of the lightweight test block (6).

4. The concrete lightweight slab impermeability testing device according to claim 1, characterized in that: The sliding frame includes a sliding sleeve (10) fitted on the connecting rod (3). An L-shaped limiting block (11) is connected to the side of the sliding sleeve (10). Multiple adjusting blocks (12) for limiting lightweight test blocks (6) of different specifications are installed on the inner side of the L-shaped limiting block (11).

5. The concrete lightweight slab impermeability testing device according to claim 4, characterized in that: The connecting rod (3) is provided with a limiting protrusion (9), and the sliding sleeve (10) is provided with a sliding groove that matches the limiting protrusion (9).

6. The concrete lightweight slab impermeability test device according to claim 4, characterized in that: The height of the L-shaped limiting block (11) of the sliding frame is lower than the thickness of the base (7).

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