Cement strength testing device

Abstract

The utility model relates to the technical field of cement testing, in particular to a cement strength testing device, which comprises a frame, a U-shaped baffle fixed on the table top of the frame, a side block attached to the baffle, and a propulsion cylinder opposite to the concave surface of the baffle. The cement strength testing device is integrated on the vehicle frame, can be moved to a concrete pouring site, does not need to depend on a laboratory environment, solves the hysteresis problem of a traditional inspection mode, facilitates timely adjustment of cement performance in the construction process, drives the opening and closing frame to be lifted through the speed reducer, facilitates placement of a sample in the baffle, and improves the construction efficiency. Through assistance of the pressing assembly, the side pushing assembly and the opposite pushing air cylinder, the sample and the baffle are limited, controllable pressure is provided through the pushing air cylinder, the cement block is tested through the pressure plate, the test condition of the cement block is observed through the pressure value of the pressure plate, and the subjective error caused by the fact that a traditional falling body method only depends on naked eye observation is avoided.

Description

Technical Field

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

[0002] In the field of construction engineering, cement strength is one of the key indicators for measuring project quality. Currently, the industry widely adopts the method of collecting concrete samples and sending them to the laboratory for high-precision measurement. Although this method can obtain relatively accurate data, it is limited by the laboratory environment and equipment, and cannot conduct rapid comparative tests on the concrete pouring site. This results in a lag in project quality control and makes it difficult to adjust and optimize the cement performance in a timely manner during the construction process.

[0003] In addition, traditional on-site testing often involves dropping a metal ball from a certain height onto the sample and judging the cement hardness by observing the sample's breakage. However, this method lacks quantitative standards, and it is difficult to achieve accurate comparisons by relying solely on visual observation. The judgment results of different operators vary greatly, which cannot meet the requirements of modern construction engineering for the accuracy and standardization of cement strength testing. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cement strength testing device, comprising a frame, a U-shaped baffle fixed on the platform of the frame, an edge block installed that is in contact with the baffle, and a propulsion cylinder installed that is opposite to the concave surface of the baffle, wherein the piston rod of the propulsion cylinder is fixed with a pressure plate that slides with the frame.

[0005] The frame is also fixed with a mounting base, a hinged opening and closing frame, and a fixed upper platform. A reducer that drives the opening and closing frame to rotate is installed on one side of the mounting base. A pressing component that presses the cement block is installed on the inner side of the opening and closing frame. A limiting component that locks the opening and closing frame is installed on the upper platform.

[0006] Furthermore, the limiting component includes a platform, an ejector cylinder is installed on one side of the platform, and a guide wheel is passed through and connected to the piston rod of the ejector cylinder. A buffer block located below the guide wheel is also installed on the platform surface.

[0007] Furthermore, two sets of auxiliary wheels are fixed on the platform surface, which are distributed opposite to each other.

[0008] Furthermore, the pressing assembly includes two sets of lowering cylinders, with a lowering plate that slides with the opening and closing frame fixed between the piston rods of the lowering cylinders, and multiple rubber heads fixed at the bottom of the lowering plate.

[0009] Furthermore, the frame is fixed with side platforms distributed on both sides of the baffle, and the side platforms are equipped with push cylinders and slidably connected push plates, with two sets of push heads installed on the push plates.

[0010] Furthermore, a downward-pushing cylinder is fixedly installed on the inner side of the opening and closing frame, and a downward-pushing frame is slidably connected to the piston rod of the downward-pushing cylinder. Two sets of side frames are slidably connected to the bottom of the downward-pushing frame. Side-pushing cylinders are installed on the side frames, and the piston rods of the side-pushing cylinders are fixed to the downward-pushing frame. An inward-facing clamping plate is fixed to the bottom of the side frames.

[0011] Furthermore, the top of the frame is also hinged with two sets of buffer cylinders, both of which are hinged to the opening and closing frame.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This cement strength testing device, integrated into the vehicle frame, can be moved to the concrete pouring site without relying on a laboratory environment, solving the problem of lag in traditional testing methods. It facilitates timely adjustment of cement performance during construction. Simultaneously, the opening and closing frame is lifted by a reducer, making it easy to place the sample into the baffle. With the assistance of the pressing component, the side pushing component, and the pushing cylinder, the sample and the baffle are limited. Controllable pressure is provided by the pushing cylinder, and the cement block is tested through the pressure plate. The test condition of the cement block is observed by the pressure value of the pressure plate, avoiding the subjective error of the traditional drop method that relies solely on visual observation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the upper part of the frame connection structure in this utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the opening and closing frame connection structure in this utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram of the upper platform connection structure in this utility model;

[0018] Figure 5 This is a three-dimensional schematic diagram of the lower pusher frame connection structure in this utility model;

[0019] Figure 6 This is a three-dimensional schematic diagram of the lower top plate connection structure of this utility model;

[0020] Figure 7 This is a three-dimensional schematic diagram of the side platform connection structure in this utility model.

[0021] In the diagram: 1. Frame; 2. Baffle; 3. Propulsion cylinder; 4. Pressure plate; 5. Side block; 6. Mounting seat; 7. Reducer; 8. Buffer cylinder; 9. Opening / closing frame; 10. Upper platform; 11. Platform; 12. Ejection cylinder; 13. Guide wheel; 14. Auxiliary wheel; 15. Downward push cylinder; 16. Downward push frame; 17. Side frame; 18. Clamping plate; 19. Side push cylinder; 20. Downward push cylinder; 21. Lower top plate; 22. Rubber head; 23. Side platform; 24. Counter-push cylinder; 25. Counter-push plate; 26. Push head. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-7 This embodiment of a cement strength testing device includes a frame 1, on which a U-shaped baffle 2 is mounted, and a side block 5 is mounted that is tightly attached to the left side of the baffle 2 to assist the baffle in improving its strength. The frame 1 is also equipped with a propulsion cylinder 3 that is opposite to the concave surface of the baffle 2. The piston rod of the cylinder is fixedly connected to a pressure plate 4. The pressure plate is slidably connected to the frame 1 via a slide rail and can be pushed into the baffle in a horizontal direction to compress and test the strength of the cement block. The top of the frame 1 is hinged with an opening and closing frame 9 and a mounting base 6 is fixedly mounted. A reducer 7 that drives the opening and closing frame 9 to lift is mounted on the mounting base 6 to realize the opening and closing action.

[0024] like Figure 3 and 6 The inner side of the opening and closing frame 9 is equipped with a pressing assembly, which includes two sets of lowering cylinders 20 installed on the inner side of the opening and closing frame 9. A lowering plate 21 that slides with the inner side of the opening and closing frame 9 is fixed between the piston rods of the lowering cylinders 20. Multiple rubber heads 22 are evenly distributed at the bottom of the lowering plate 21 for applying vertical pressure to the top surface of the cement block.

[0025] like Figure 5Inside the opening and closing frame 9, a downward push cylinder 15 is installed. Its piston rod is fixed to a downward push frame 16 that slides with the opening and closing frame 9. A set of side frames 17 are slidably connected to the bottom sides of the downward push frame 16. A side push cylinder 19 is installed on the side frame 17. The piston rod of the side push cylinder 19 is fixed to the downward push frame 16. The bottom of the two side frames 17 is fixed with relatively distributed clamping plates 18. Before the test, when the rubber head presses down on the sample, the downward push cylinder drives the downward push frame to move down to a suitable position. Through the push-out and retraction of the side push cylinder, the side frame slides on the downward push frame, thereby driving the clamping plate to clamp the baffle and improve the strength of the side of the baffle.

[0026] like Figure 7 The frame 1 has side platforms 23 fixed on the front and rear sides of the baffle 2. The side platforms 23 are equipped with counter-push cylinders 24, whose piston rods are connected to counter-push plates 25. The counter-push plates 25 slide with the side platforms 23. Two sets of push heads 26 are fixed on the side of the counter-push plates 25 opposite to the baffle 2. Before the test, the counter-push cylinders can drive the counter-push plates to push out, so that the push heads are in contact with the sides of the baffle, thereby improving the strength of the baffle before the test.

[0027] like Figure 4 The limiting component includes an upper platform 10 fixed to the top of the frame 1, a base 11 mounted on the upper platform 10, a guide wheel 13 slidably connected to the inner side of the base 11, and an ejector cylinder 12 for pushing the guide wheel 13 to move is mounted on its back side. The platform surface of the upper platform 10 is also fixed with two sets of oppositely distributed auxiliary wheels 14 and a pad block fixed between the two sets of auxiliary wheels 14. When the opening and closing frame is closed, it will contact the pad block, and then the ejector cylinder will drive the guide wheel to be ejected, thereby limiting the opening and closing frame. At the same time, when the opening and closing frame moves down, the auxiliary wheels can also guide and limit the opening and closing frame, so that it falls exactly on the pad block.

[0028] like Figure 3 Two sets of buffer cylinders 8 are hinged on the frame 1. The piston rod of the buffer cylinder 8 is hinged to the opening and closing frame 9 to absorb the impact force when the opening and closing frame rotates and improve the stability of the device.

[0029] The working principle of the above embodiments is as follows:

[0030] The cement block to be tested is placed on the chassis platform within the baffle. The reducer is controlled to rotate, driving the opening and closing frame to rotate downwards around the hinge axis, covering the cement block. When the opening and closing frame rotates to the predetermined position, the ejection cylinder is activated, and the piston rod pushes the guide wheel out. The guide wheel is located at the top edge of the opening and closing frame. At the same time, the auxiliary wheel also plays a role in assisting guidance and limiting. During this process, the buffer cylinder buffers the inertial impact of the opening and closing frame rotation through the extension and retraction of the piston rod. The lowering cylinder is activated, and the two sets of cylinders synchronously drive the lower top plate to descend vertically until the bottom rubber head is in complete contact with the top surface of the cement block, thus providing a limiting effect and making the test more precise. To enhance stability, under control, the piston rod of the push cylinder extends, causing the lower push frame to descend, aligning the clamps of the side frames with the sides of the baffle. The side push cylinder is activated, and the piston rod pushes the side frames inward along the lower push frame guide rail, applying force to the baffle. Simultaneously, the counter-push cylinder is activated, and the counter-push cylinders on both side platforms synchronously drive the counter-push plates to move towards the center, bringing the push head into contact with the baffle. This improves the strength of the baffle during testing. After preparation, the propulsion cylinder is activated, and the piston rod pushes the pressure plate horizontally until the pressure plate contacts the other side of the cement block. The constant pressure of the cylinder achieves the cement block strength test.

[0031] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0032] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement strength testing device, characterized in that: Includes a frame (1), a U-shaped baffle (2) fixed on the platform of the frame (1), a side block (5) that is attached to the baffle (2), and a thrust cylinder (3) that is opposite to the concave surface of the baffle (2). The piston rod of the thrust cylinder (3) is fixed with a pressure plate (4) that slides with the frame (1). The frame (1) is also fixed with a mounting base (6), a hinged opening and closing frame (9), and a fixed upper platform (10). A reducer (7) for driving the opening and closing frame (9) to rotate is installed on one side of the mounting base (6). A pressing component for pressing cement blocks is installed on the inner side of the opening and closing frame (9). A limiting component for locking the opening and closing frame (9) is installed on the upper platform (10).

2. The cement strength testing device according to claim 1, characterized in that: The limiting component includes a base (11), an ejector cylinder (12) is installed on one side of the base (11), and a guide wheel (13) is connected to the piston rod of the ejector cylinder (12) through the inner side. A buffer block located below the guide wheel (13) is also installed on the platform of the upper platform (10).

3. The cement strength testing device according to claim 2, characterized in that: Two sets of auxiliary wheels (14) are fixed on the platform (10) and are distributed opposite to each other.

4. The cement strength testing device according to claim 1, characterized in that: The pressing assembly includes two sets of lower cylinders (20), and a lower plate (21) that slides with the opening and closing frame (9) is fixed between the piston rods of the lower cylinders (20). Multiple rubber heads (22) are fixed at the bottom of the lower plate (21).

5. The cement strength testing device according to claim 1, characterized in that: The frame (1) is fixed with side platforms (23) distributed on both sides of the baffle (2). The side platforms (23) are equipped with a counter-push cylinder (24) and a counter-push plate (25) slidably connected to it. Two sets of push heads (26) are installed on the counter-push plate (25).

6. The cement strength testing device according to claim 5, characterized in that: The inner side of the opening and closing frame (9) is fixedly installed with a downward push cylinder (15) and a downward push frame (16) which is slidably connected to the piston rod of the downward push cylinder (15). Two sets of side frames (17) are slidably connected to the bottom of the downward push frame (16). A side push cylinder (19) is installed on the side frame (17). The piston rod of the side push cylinder (19) is fixed to the downward push frame (16). An inward clamping plate (18) is fixed to the bottom of the side frame (17).

7. The cement strength testing device according to claim 1, characterized in that: The top of the frame (1) is also hinged with two sets of buffer cylinders (8), both of which are hinged to the opening and closing frame (9).

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