Concrete durability testing machine

Abstract

The utility model discloses a concrete durability testing machine which comprises a test box, a telescopic rod is mounted at the top of the inner side of the test box, and a first pressure sensor is mounted at the bottom end of the telescopic rod. The first pressure sensor is installed, the telescopic rod extends to drive the first pressure sensor at the bottom end to move downwards, the first pressure sensor moves downwards to drive the lower pressing plate to move downwards, the lower pressing plate moves downwards to extrude concrete below, and pressure is continuously applied to the concrete; the first pressure sensor detects the applied pressure, then the first pressure sensor transmits the detected data to the controller, the controller accurately determines the applied pressure and the applied pressure of the upper pressing plate and the lower pressing plate, the second pressure sensor detects the pressure intensity, and the pressure intensity of the concrete sample block is detected. The first pressure sensor and the second pressure sensor are matched up and down, so that the pressure precision is detected, and the test precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing, in particular to a concrete durability testing machine. Background Art

[0002] Concrete is a composite material and one of the most important building materials. It is widely used in various buildings. For the safety of buildings, we need to study and understand the strength and durability of concrete in depth.

[0003] Patent document CN212807882U discloses a concrete durability testing device, which discloses "a concrete durability testing device, including a base, a support column fixedly connected to the base, a loading platform fixedly connected to the base, a test block placed on the loading platform, a top plate slidably connected to the support column and a hydraulic press fixedly connected to the top plate, the loading platform is provided with a plurality of waste troughs, a support cover is provided above the waste trough, and a rubber support block is provided on the support cover for supporting and fixing the test block."

[0004] However, the concrete durability testing machine disclosed in the above-mentioned document lacks a precise measurement structure and is unable to accurately detect the applied pressure. Utility Model Content

[0005] The purpose of the present invention is to provide a concrete durability testing machine to solve the technical problem in the above background technology that the concrete durability testing machine lacks an internal precision measurement structure and cannot accurately detect the applied pressure.

[0006] To achieve the above object, the present invention provides the following technical solution: a concrete durability testing machine, comprising: a test box, a telescopic rod installed on the inner top of the test box, a first pressure sensor installed on the bottom end of the telescopic rod, and a lower pressure plate installed on the bottom end of the first pressure sensor;

[0007] A second pressure sensor is installed on the inner bottom wall of the test box, and a concrete placement assembly is placed on the top of the second pressure sensor. The concrete placement assembly includes a placement box movably installed on the top of the second pressure sensor, and internal threaded rings are installed through the inner walls on both sides of the placement box. A threaded rod is movably installed on the inner side of the internal threaded ring through a thread, and a handle is installed at one end of the threaded rod. A splint is installed at the other end of the threaded rod through a connecting piece, and the splint is movable on the inner side of the placement box.

[0008] Preferably, electric adjustment rods are installed inside both sides of the test box, and a positioning plate is installed at one end of the electric adjustment rod, and the positioning plate is against both sides of the placement box.

[0009] Preferably, a card slot is installed on one side of the test box.

[0010] Preferably, the front of the test box is connected to a door via a hinge.

[0011] Preferably, an observation window is installed on the inner side of the door body.

[0012] Preferably, a support seat is installed on one side of the door body, a rotating rod is movably installed on the inner side of the support seat, and a handle is installed at the front end of the rotating rod.

[0013] Preferably, a card plate is installed on one side of the rear end of the rotating rod, and the card plate is movably installed on the inner side of the card slot.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is equipped with a first pressure sensor. The extension of the telescopic rod drives the first pressure sensor at the bottom to move downward. The downward movement of the first pressure sensor drives the lower pressure plate to move downward. The lower pressure plate moves downward to squeeze the concrete below, continuously applying pressure to the concrete, thereby testing the compressive performance of the concrete sample. The applied pressure is detected by the first pressure sensor, and then the first pressure sensor transmits the detected data to the controller. The controller accurately determines the applied pressure, and the upper lower pressure plate applies pressure. The second pressure sensor detects the pressure intensity. The first pressure sensor and the second pressure sensor cooperate with each other up and down to detect the accuracy of the pressure, thereby improving the accuracy of the test.

[0016] 2. The utility model is equipped with a placement box, which is placed on the top of the second pressure sensor, making it convenient for users to pick up and move the placement box. The placement box is fixed to the internal threaded ring on the inner wall to ensure the stability of the internal threaded ring. The inner side of the internal threaded ring supports the threaded rod through the thread. The user grasps the handle and rotates the handle to drive the threaded rod to rotate. The threaded rod drives the splint toward the placement box. The splint positions the concrete sample, which facilitates the precise installation of the concrete sample and facilitates subsequent testing of the concrete sample. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the placement box structure of the present utility model;

[0020] Figure 4 This is a structural schematic diagram of the support base of the present utility model.

[0021] In the figure: 1. Test box; 2. Telescopic rod; 3. First pressure sensor; 4. Lower pressure plate; 5. Second pressure sensor; 6. Placement box; 7. Internal threaded ring; 8. Threaded rod; 9. Handle; 10. Clamp; 11. Door; 12. Observation window; 13. Support seat; 14. Rotating rod; 15. Card plate; 16. Handle; 17. Card slot; 18. Telescopic rod; 19. Positioning plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] See also Figure 2 A concrete durability testing machine comprises: a test box 1, a telescopic rod 2 is installed on the inner top of the test box 1, a first pressure sensor 3 is installed on the bottom end of the telescopic rod 2, and a lower pressure plate 4 is installed on the bottom end of the first pressure sensor 3;

[0026] The test box 1 fixes the top telescopic rod 2 to ensure that the telescopic rod 2 can operate smoothly. The extension of the telescopic rod 2 drives the first pressure sensor 3 at the bottom to move downward. The downward movement of the first pressure sensor 3 drives the lower pressure plate 4 to move downward. The lower pressure plate 4 moves downward to squeeze the concrete below, continuously applying pressure to the concrete, thereby testing the compressive performance of the concrete sample. The applied pressure is detected by the first pressure sensor 3, and then the first pressure sensor 3 transmits the detected data to the controller, and the controller accurately determines the applied pressure.

[0027] See also Figure 1 、 Figure 2 and Figure 3 A second pressure sensor 5 is installed on the inner bottom wall of the test box 1, and a concrete placement assembly is placed on the top of the second pressure sensor 5. The concrete placement assembly includes a placement box 6 movably installed on the top of the second pressure sensor 5. Internal threaded rings 7 are installed through the inner walls of both sides of the placement box 6. A threaded rod 8 is movably installed on the inner side of the internal threaded ring 7 through a thread. A handle 9 is installed at one end of the threaded rod 8, and a splint 10 is installed at the other end of the threaded rod 8 through a connecting piece. The splint 10 moves inside the placement box 6;

[0028] The test box 1 fixes the second pressure sensor 5 on the inner bottom wall to ensure the stability of the second pressure sensor 5. The second pressure sensor 5 supports the placement box 6 on the top. The placement box 6 is placed on the top of the second pressure sensor 5 to facilitate the user to take and move the placement box 6. The placement box 6 fixes the internal threaded ring 7 on the inner wall to ensure the stability of the internal threaded ring 7. The inner side of the internal threaded ring 7 supports the threaded rod 8 through the thread. The user grasps the handle 9 and rotates the handle 9 to drive the threaded rod 8 to rotate. The threaded rod 8 drives the clamping plate 10 to move closer to the placement box 6. The clamping plate 10 positions the concrete sample, which facilitates the precise installation of the concrete sample and facilitates subsequent testing of the concrete sample.

[0029] After the concrete sample is installed, the upper lower pressure plate 4 applies pressure, and the second pressure sensor 5 detects the pressure intensity. The first pressure sensor 3 and the second pressure sensor 5 cooperate with each other to detect the accuracy of the pressure, thereby improving the accuracy of the test.

[0030] Electric adjustment rods 18 are installed inside both sides of the test box 1, and a positioning plate 19 is installed at one end of the electric adjustment rod 18. The positioning plate 19 is against the two sides of the placement box 6. The test box 1 fixes the inner electric adjustment rod 18 to ensure the stability of the electric adjustment rod 18. The electric adjustment rod 18 is extended to drive the positioning plate 19 at one end to move, and the positioning plate 19 is against the outer wall of the placement box 6 to achieve precise positioning of the placement box 6.

[0031] See also Figure 1 and Figure 4A card slot 17 is installed on one side of the test box 1. The front of the test box 1 is connected to a door body 11 through a hinge. An observation window 12 is installed on the inner side of the door body 11. A support base 13 is installed on one side of the door body 11. A rotating rod 14 is movably installed on the inner side of the support base 13. A handle 16 is installed on the front end of the rotating rod 14. A card plate 15 is installed on one side of the rear end of the rotating rod 14. The card plate 15 is movably installed on the inner side of the card slot 17;

[0032] A card slot is fixed on one side of the test box 1, and the front of the test box 1 is connected to the door body 11 through a hinge. An observation window 12 is fixed on the inner side of the door body 11. The observation window 12 is made of transparent tempered glass. The tempered glass has high hardness, which can prevent concrete blocks from breaking and splashing everywhere, ensuring the safety of external experimenters and making it convenient for users to observe the internal test conditions.

[0033] Working principle: the test box 1 fixes the top telescopic rod 2 to ensure that the telescopic rod 2 can operate smoothly. The extension of the telescopic rod 2 drives the first pressure sensor 3 at the bottom to move downward, and the downward movement of the first pressure sensor 3 drives the lower pressure plate 4 to move downward. The lower pressure plate 4 moves downward to squeeze the concrete below, and continuously applies pressure to the concrete, thereby detecting the compressive performance of the concrete sample. The applied pressure is detected by the first pressure sensor 3, and then the first pressure sensor 3 transmits the detected data to the controller, which accurately determines the applied pressure. The upper lower pressure plate 4 applies pressure, and the second pressure sensor 5 detects the pressure intensity. The first pressure sensor 3 and the second pressure sensor 5 cooperate with each other up and down to detect the accuracy of the pressure and improve the accuracy of the test.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A concrete durability testing machine, characterized in that: The invention comprises a test box (1), a telescopic rod (2) being installed on the inner top of the test box (1), a first pressure sensor (3) being installed on the bottom end of the telescopic rod (2), and a lower pressure plate (4) being installed on the bottom end of the first pressure sensor (3); A second pressure sensor (5) is installed on the inner bottom wall of the test box (1), and a concrete placement assembly is placed on the top of the second pressure sensor (5). The concrete placement assembly includes a placement box (6) movably installed on the top of the second pressure sensor (5), and internal threaded rings (7) are installed through the inner walls of both sides of the placement box (6). A threaded rod (8) is movably installed on the inner side of the internal threaded ring (7) through a thread, and a handle (9) is installed on one end of the threaded rod (8). A clamping plate (10) is installed on the other end of the threaded rod (8) through a connecting piece, and the clamping plate (10) is movable inside the placement box (6).

2. A concrete durability testing machine according to claim 1, characterized in that: Electric adjustment rods (18) are installed inside both sides of the test box (1), and a positioning plate (19) is installed at one end of the electric adjustment rod (18), and the positioning plate (19) is against both sides of the placement box (6).

3. A concrete durability testing machine according to claim 1, characterized in that: A card slot (17) is installed on one side of the test box (1).

4. A concrete durability testing machine according to claim 1, characterized in that: The front of the test box (1) is connected to a door (11) via a hinge.

5. A concrete durability testing machine according to claim 4, characterized in that: An observation window (12) is installed on the inner side of the door body (11).

6. A concrete durability testing machine according to claim 4, characterized in that: A support seat (13) is installed on one side of the door body (11), a rotating rod (14) is movably installed on the inner side of the support seat (13), and a handle (16) is installed at the front end of the rotating rod (14).

7. A concrete durability testing machine according to claim 6, characterized in that: A clamping plate (15) is installed on one side of the rear end of the rotating rod (14), and the clamping plate (15) is movably installed on the inner side of the clamping slot (17).

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