A device for detecting the strength of cement

Abstract

The utility model provides a cement strength detection device belongs to mechanical technical field, a cement strength detection device, include: base, the base is fixed with the bottom plate on the base, is provided with the positioning slot on the bottom plate, two columns, two columns are fixed on the base, and the top of column is fixed with the top plate, hydraulic machine, hydraulic machine is fixed on the top plate, briquetting, briquetting is fixed on the piston rod of hydraulic machine, and hydraulic machine drives briquetting to go up and down, bottom box, bottom box sets up in the positioning slot, and bottom box can be taken out from the positioning slot, the bottom of bottom box is provided with a plurality of positioning hole, and positioning hole is used for inserting the locating rod.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, specifically a cement strength testing device. Background Technology

[0002] In the compressive strength test of cement concrete, the concrete must first be poured into a cube specimen of a specified size. After the specimen is prepared, it needs to be transferred to a pressure testing machine for testing. During this process, the position of the specimen needs to be manually adjusted to ensure that its center point is precisely aligned with the center of the output shaft of the pressure machine. This step needs to be done manually every time. In addition, after the concrete specimen is tested, a large number of fragments will be generated and fall off, which also need to be cleaned manually afterward. The overall operation is somewhat inconvenient. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a cement strength testing device that is easy to align and clean.

[0004] The objective of this utility model can be achieved through the following technical solutions: A cement strength testing device, comprising: A base, on which a base plate is fixed, and a positioning groove is provided on the base plate; Two uprights are fixed to the base, and a top plate is fixed to the top of each upright. A hydraulic press, the hydraulic press being fixed to a top plate; A pressure block, which is fixed on the piston rod of a hydraulic press, and the hydraulic press drives the pressure block to rise and fall; The bottom box is disposed in the positioning groove and can be removed from the positioning groove. The bottom of the bottom box is provided with a plurality of positioning holes for inserting positioning rods.

[0005] In the aforementioned cement strength testing device, the base box includes a steel base block and a transparent baffle surrounding the base block, and the positioning hole is formed on the base block.

[0006] In the above-mentioned cement strength testing device, the positioning hole is a countersunk hole.

[0007] In the above-mentioned cement strength testing device, a guide slope is provided on the side of the positioning groove facing the front of the testing device, and the bottom box can slide into the positioning groove along the guide slope.

[0008] Compared with the prior art, this application has the following advantages: The combination of positioning holes and positioning rods at the bottom of the box can accurately fix the position of the cement concrete specimen, ensuring that the center point of the specimen is strictly aligned with the center of the pressure block (i.e., the output shaft of the press). The fragments can fall directly into the bottom box for easy cleaning and recycling. Attached Figure Description

[0009] Figure 1 This is a front view in this application; Figure 2 yes Figure 1 A cross-sectional view of position AA in the middle; Figure 3 This is a schematic diagram of the bottom box being removed from the guide ramp in this application; In the picture, 2. Base; 21. Base plate; 211. Positioning groove; 212. Guide slope; 3. Columns; 31. Roof slab; 4. Hydraulic press; 5. Pressing blocks; 6. Base box; 61. Base block; 611. Positioning hole; 62. Transparent baffle; 63. Positioning rod. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0011] like Figures 1 to 3 As shown, a cement strength testing device includes: a base 2, two columns 3, a hydraulic press 4, a pressure block 5, and a bottom box 6. A base plate 21 is fixed on the base 2, and a positioning groove 211 is provided on the base plate 21. The two columns 3 are fixed on the base 2, and a top plate 31 is fixed to the top of the columns 3. The hydraulic press 4 is fixed on the top plate 31. The pressure block 5 is fixed on the piston rod of the hydraulic press 4, and the hydraulic press 4 drives the pressure block 5 to rise and fall. The bottom box 6 is set in the positioning groove 211, and the bottom box 6 can be removed from the positioning groove 211. A plurality of positioning holes 611 are provided at the bottom of the bottom box 6 for inserting positioning rods 63.

[0012] In this application, positioning rods 63 can be inserted into positioning holes 611 at the bottom of the base box 6. The cooperation between the positioning rods 63 and positioning grooves 211 ensures that the base box 6 and the internal specimen are in the preset testing position. The positioning rods 63 are positioned around the specimen to limit its movement and prevent it from shifting during testing. The cement concrete cube specimen to be tested is placed into the base box 6 and limited by multiple positioning rods 63. Then, the base box 6 is placed in the positioning groove 211 of the base plate 21 of the base 2. The positioning groove 211 limits the position of the base box 6, allowing the specimen to be directly aligned with the output of the press. Center of axis; After the device is started, the hydraulic press 4 fixed on the top plate 31 begins to work. The piston rod of the hydraulic press 4 drives the pressure block 5 below to slowly descend. As the pressure block 5 continues to apply pressure downward, the cement concrete specimen in the bottom box 6 gradually bears the pressure load until the specimen breaks due to being unable to withstand the pressure. When the specimen breaks and the test is completed, the hydraulic press 4 drives the pressure block 5 back to the initial position. The operator can directly remove the bottom box 6 from the positioning groove 211 of the bottom plate 21 and clean the concrete fragments in the bottom box 6. After cleaning, the next test operation can be carried out.

[0013] The combination design of the positioning hole 611 and positioning rod 63 at the bottom of the base box 6 can accurately fix the position of the cement concrete specimen, ensuring that the center point of the specimen is strictly aligned with the center of the pressure block 5 (i.e., the output shaft of the press), and the fragments can fall directly into the base box 6 for easy cleaning and recycling.

[0014] Specifically, the base box 6 includes a steel base 61 and a transparent baffle 62 surrounding the base 61, with positioning holes 611 formed on the base 61.

[0015] The transparent baffle 62 is made of transparent materials, such as high-strength tempered glass or transparent acrylic. During the testing process, the operator can clearly observe the stress state, deformation process and instantaneous fracture of the cement concrete specimen through the baffle.

[0016] Specifically, the positioning hole 611 is a countersunk hole.

[0017] Specifically, a guide slope 212 is provided on the side of the positioning groove 211 facing the front of the detection device, and the bottom box 6 can slide into the positioning groove 211 along the guide slope 212.

[0018] Before testing, the operator only needs to align the bottom box 6 with the guide slope 212. With the guidance of the slope, the bottom box 6 can smoothly slide into the positioning groove 211. When taking it out, simply pull the bottom box 6 and it can be removed from the positioning groove 211 along the guide slope 212.

[0019] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0021] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0022] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from this utility model or exceeding the scope defined by the appended claims.

Claims

1. A cement strength testing device, characterized in that, include: A base (2) is provided with a base plate (21) fixed on the base (2) and a positioning groove (211) is provided on the base plate (21). Two columns (3) are fixed on the base (2), and a top plate (31) is fixed to the top of the columns (3). Hydraulic press (4), which is fixed on top plate (31); A pressure block (5) is fixed on the piston rod of a hydraulic press (4), and the hydraulic press (4) drives the pressure block (5) to rise and fall. The bottom box (6) is disposed in the positioning groove (211) and can be removed from the positioning groove (211). The bottom of the bottom box (6) is provided with a plurality of positioning holes (611) for inserting positioning rods (63).

2. The cement strength testing device according to claim 1, characterized in that, The base box (6) includes a steel base block (61) and a transparent baffle (62) surrounding the base block (61), with positioning holes (611) formed on the base block (61).

3. The cement strength testing device according to claim 1, characterized in that, The positioning hole (611) is a countersunk hole.

4. The cement strength testing device according to claim 1, characterized in that, The positioning groove (211) has a guide slope (212) on the side facing the front of the detection device, and the bottom box (6) can slide into the positioning groove (211) along the guide slope (212).

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