Experimental material pressure testing device

Abstract

The utility model is suitable for the field of material performance testing equipment, and provides an experimental material pressure testing device, which comprises a movable pressure plate moving towards the working surface of a material to be tested, a placement space arranged on the working surface of the movable pressure plate, and a position testing block movably arranged in the placement space, in a positioning state, the position measuring block is driven by an extrusion piece to extend out of the placing space and protrude out of the working surface of the movable pressure plate; when the movable pressure plate moves downwards, the position measuring block is in contact with the working surface of the material to be tested and then instantly contracts into the placing space, and the movable pressure plate stops moving, so that the reserved gap distance between the movable pressure plate and the material to be tested before testing can be determined through the position measuring block, and the position measuring block is more convenient and more accurate than manual confirmation of an operator; and errors caused by operation problems before testing are further reduced.

Description

Technical Field

[0001] This utility model relates to the field of material performance testing equipment, and in particular to an experimental material pressure testing device. Background Technology

[0002] Materials performance testing is the testing of a material's properties before its application in a specific field. A complete understanding of these properties is crucial to determining the material's strength, toughness, durability, and suitability, ensuring that the material meets design and application requirements. Examples include the elasticity testing of spring steel and the compressive tear resistance testing of concrete.

[0003] In current methods, different strength grades of concrete (such as C15 and C20) are typically subjected to compression crushing by a hydraulic press during pressure testing to determine their actual compressive strength parameters. However, in actual operation of existing pressure testing equipment (hydraulic presses), before the pressurization system applies pressure according to the set parameters, the operator needs to drive the pressure plate to its initial position. This position has a gap (not contact) with the material's compression surface. Confirming this position manually is difficult for operators (especially beginners), and either the gap is too large or the pressure plate is already in contact with the material's side surface (both of which will cause errors in the system test).

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this invention is to provide an experimental material pressure testing device that can determine the pre-reserved gap distance between the movable pressure plate and the material to be tested before testing using a position measuring block. This is more convenient and accurate than manual confirmation by the operator, further reducing errors caused by operational issues before testing.

[0006] To achieve the above objectives, this utility model provides an experimental material pressure testing device, including a movable pressure plate that moves toward the working surface of the material to be tested, a placement space disposed on the working surface of the movable pressure plate, and a movable position measuring block disposed inside therein; in the positioning state, the position measuring block is driven by a pressing element to extend out of the placement space and protrude from the working surface of the movable pressure plate; when the movable pressure plate moves downward, the position measuring block contacts the working surface of the material to be tested and instantly retracts into the placement space, and the movable pressure plate stops moving.

[0007] According to the experimental material pressure testing device of this utility model, the working surface of the contracted position measuring block is flush with the working surface of the movable pressure plate.

[0008] According to the experimental material pressure testing device of this utility model, the position measuring block is driven by a reset member and retracts into the placement space.

[0009] According to the experimental material pressure testing device of this utility model, the reset component is a first magnetic block disposed in the placement space and a second magnetic block disposed at a predetermined position of the position measuring block; during reset, the first magnetic block and the second magnetic block generate magnetic attraction to drive the position measuring block to reset.

[0010] According to the experimental material pressure testing device of this utility model, the position measuring block is driven by a positioning structure to be positioned in an outward protruding positioning state; the positioning structure is a structure in which the side wall of the placement space is wider at the top and narrower at the bottom, and the position measuring block in the positioning state is fixed in position by the friction of the side wall.

[0011] According to the experimental material pressure testing device of this utility model, the side wall of the movable pressure plate is provided with an insertion port for the extruder to enter the placement space; the end of the position measuring block is provided with a notch to facilitate the insertion of the extruder into its upper part; the extruder presses the position measuring block downward to drive it to move.

[0012] This invention provides a pressure testing device for experimental materials, including a movable pressure plate that moves towards the working surface of the material to be tested, a fixed pressure plate for placing the material to be tested, a placement space disposed on the working surface of the movable pressure plate, and a movable position measuring block disposed inside the space. During pressure testing, the downward-moving movable pressure plate reduces the distance between itself and the fixed pressure plate, generating a squeezing effect that acts on the material to be tested, thus achieving the pressure test. In the positioned state, the position measuring block is driven by a squeezing element to extend from the placement space and protrude from the working surface of the movable pressure plate. As the movable pressure plate moves downward, the position measuring block contacts the working surface of the material to be tested and instantly retracts into the placement space, stopping the movable pressure plate from moving. The protrusion distance of the position measuring block can be set as needed, and this protrusion distance is equal to the required pre-set gap between the movable pressure plate and the material to be tested before testing. This invention allows the position measuring block to determine the pre-set gap distance between the movable pressure plate and the material to be tested before testing, which is more convenient and accurate than manual confirmation by the operator, further reducing errors caused by operational problems before testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is another schematic diagram of the present invention;

[0015] Figure 3 yes Figure 2 A schematic diagram of the position measurement block at part A in the middle from a first-person perspective;

[0016] Figure 4 yes Figure 2A schematic diagram of the fit between the position measuring block and the extrusion part at the second perspective of section A in the middle;

[0017] In the diagram, 01-fixed pressure plate, 1-movable pressure plate, 2-placement space, 3-position measuring block, 4-insertion, 5-extrusion component. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0019] See Figure 1 , Figure 2 and Figure 3 This utility model provides an experimental material pressure testing device, which includes a movable pressure plate 1 that moves toward the working surface of the material to be tested, a fixed pressure plate 01 for placing the material to be tested, a placement space 2 set on the working surface of the movable pressure plate 1, and a movable position measuring block 3 placed inside it; when performing pressure testing, the movable pressure plate 1 moves downward to reduce the distance between it and the fixed pressure plate 01, so as to generate a squeezing effect and act on the material to be tested, thereby realizing the pressure testing work.

[0020] In the positioning state, the position measuring block 3 is driven by a pressing component to extend out of the placement space 2 and protrude from the working surface of the movable pressure plate 1; as the movable pressure plate 1 moves down, the position measuring block 3 contacts the working surface of the material to be tested and then instantly retracts into the placement space 2, and the movable pressure plate 1 stops moving (the placement space 2 is provided with a sensing component for sensing the reset of the position measuring block 3, such as a pressure contact, which sends a sensing signal after receiving the position measuring block 3 to control the movable pressure plate 1 to stop moving).

[0021] The protrusion distance of the position measuring block 3 can be set as needed, and this protrusion distance is equal to the reserved gap between the movable pressure plate 1 and the material to be tested before the test.

[0022] Preferably, the working surface of the retracted position measuring block 3 is flush with the working surface of the movable pressure plate 1 to ensure the accuracy of the pressure test and avoid the position measuring block 3 from having local protrusions that could cause local stress on the test material (the test material subjected to local stress would be torn prematurely during the test without reaching the ideal compressive strength parameters).

[0023] The position measuring block 3 is driven by a reset component and instantly retracts into the placement space 2. The reset component consists of a first magnetic block disposed in the placement space 2 and a second magnetic block disposed at a predetermined position on the position measuring block 3. During reset, the first magnetic block and the second magnetic block (not shown in the figure) generate a magnetic attraction force, driving the position measuring block 3 to reset. Of course, the structure of the reset component can also be replaced by other structures, such as using a spring to pull the reset. The instantaneous reset of the position measuring block 3 after being in the positioning state and being pressed against the surface of the material to be tested is to form the required pre-reserved gap between the movable pressure plate 1 and the material to be tested before testing, ensuring that the initial pressure standard is achieved.

[0024] The position measuring block 3 is driven by a positioning structure to be positioned in an outward protruding positioning state;

[0025] See Figure 4 The positioning structure features a sidewall that is wider at the top and narrower at the bottom of the placement space 2. The position measuring block 3, in its positioning state, is fixed in place by the friction of the sidewall (the lower part of the placement space 2 exerts a squeezing effect on the position measuring block 3). The sidewall of the movable pressure plate 1 is provided with an insertion port 4 for the squeezing member 5 (which can be inserted as a rod) to enter the placement space 2; the end of the position measuring block 3 is provided with a notch to facilitate the insertion of the squeezing member 5 into its upper part; the squeezing member 5 presses the position measuring block 3 downwards to drive its movement.

[0026] When the extruder 5 drives the position measuring block 3 into the positioning state, it is only necessary to insert the extruder 5 into the socket 4 and further advance it above the position measuring block 3. As the extruder 5 moves further, it presses the position measuring block 3 downward to drive it to move. Subsequently, the lower part of the placement space 2 exerts a squeezing effect on the position measuring block 3, thus entering the positioning state.

[0027] This application uses position measuring block 3 to determine the reserved gap distance between the movable pressure plate 1 and the material to be tested before testing, which is more convenient and accurate than manual confirmation by the operator, and further reduces the error caused by operational problems before testing.

[0028] In summary, this invention provides a pressure testing device for experimental materials, including a movable pressure plate that moves towards the working surface of the material to be tested, a fixed pressure plate for placing the material to be tested, a placement space disposed on the working surface of the movable pressure plate, and a movable position measuring block disposed within it. During pressure testing, the downward-moving movable pressure plate reduces the distance between itself and the fixed pressure plate, generating a squeezing effect that acts on the material to be tested, thus achieving the pressure test. In the positioning state, the position measuring block is driven by a squeezing element to extend from the placement space and protrude from the working surface of the movable pressure plate. As the movable pressure plate moves downward, the position measuring block contacts the working surface of the material to be tested and instantly retracts into the placement space, stopping the movable pressure plate from moving. The protrusion distance of the position measuring block can be set as needed, and this protrusion distance is equal to the required pre-set gap between the movable pressure plate and the material to be tested before testing. This invention can determine the pre-set gap distance between the movable pressure plate and the material to be tested before testing using the position measuring block, which is more convenient and accurate than manual confirmation by the operator, further reducing errors caused by operational problems before testing.

[0029] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A pressure testing device for experimental materials, characterized in that, It includes a movable pressure plate that moves toward the working surface of the material to be tested, a placement space set on the working surface of the movable pressure plate, and a movable position measuring block placed inside it; In the positioning state, the position measuring block is driven by a pressing component to extend out of the placement space and protrude from the working surface of the movable pressure plate; as the movable pressure plate moves down, the position measuring block contacts the working surface of the material to be measured and then instantly retracts into the placement space, and the movable pressure plate stops moving.

2. The experimental material pressure testing device according to claim 1, characterized in that, The working surface of the position measuring block after shrinking is flush with the working surface of the movable pressure plate.

3. The experimental material pressure testing device according to claim 1, characterized in that, The position measuring block is retracted into the placement space by being driven by a reset component.

4. The experimental material pressure testing device according to claim 3, characterized in that, The reset component consists of a first magnetic block disposed within the placement space and a second magnetic block disposed at a predetermined position on the position measuring block; During reset, the first magnetic block and the second magnetic block generate a magnetic attraction force, which drives the position measuring block to reset.

5. The experimental material pressure testing device according to claim 1 or 2, characterized in that, The position measuring block is driven by a positioning structure to be positioned in an outward protruding positioning state; The positioning structure has a side wall that is wider at the top and narrower at the bottom, and the position measuring block in the positioning state is fixed in position by the friction of the side wall.

6. The experimental material pressure testing device according to claim 5, characterized in that, The side wall of the movable pressure plate is provided with an insertion port for the extruded part to enter the placement space; The end of the position measuring block is provided with a notch to facilitate the insertion of the extrusion piece into its upper part; The extruder pushes the position measuring block downwards to drive its movement.

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