A high-precision building mortar detection device
By designing a central positioning mechanism and a spring rope mechanism, the problem of center alignment of the test block was solved, achieving high precision and reliability of the building mortar testing device and ensuring the accuracy of compressive strength testing.
Patent Information
- Application Number
- CN202521855068.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-29
AI Technical Summary
When testing compressive strength, existing building mortar testing devices often fail to accurately align the center of the test block with the pressure axis, resulting in uneven stress and affecting the accuracy and reliability of the test results.
Design a building mortar testing device that includes a central positioning mechanism. By combining a hydraulic rod, a pressure sensor, a pressure plate, and a central positioning mechanism, ensure that the center of the test block is aligned directly below the hydraulic rod. A spring and rope mechanism is used for positioning to prevent interference during the testing process.
This improves the accuracy and reliability of test results, ensures uniform stress on the test block, reduces deviations, and enhances the accuracy of the test.
Smart Images
Figure CN224681930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and in particular to a high-precision building mortar testing device. Background Technology
[0002] A building mortar testing device is a professional equipment combination used to test the performance of building mortar and assess whether it meets quality standards. It mainly includes: a pressure testing machine (to measure compressive strength), a mortar consistency meter (to measure consistency), a water retention meter (to measure water retention), a segregation cylinder (to measure segregation), and a penetration resistance meter (to measure setting time), etc., and can test core performance indicators.
[0003] When testing the compressive strength of mortar, a standard test block needs to be placed under a press. However, in practice, it is difficult to precisely align the center of the test block directly under the pressure axis, resulting in eccentric compression. This causes uneven stress distribution and localized stress concentration on the test block, leading to a deviation of the measured compressive strength value from the true value, which may be too high or too low, affecting the accuracy and reliability of the test results. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies where the measured compressive strength values deviate from the true values, potentially being too high or too low, thus affecting the accuracy and reliability of the test results. Therefore, this invention proposes a high-precision building mortar testing device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: Design a high-precision building mortar testing device, including a base, a workbench fixedly connected to the upper end of the base, a fixed frame fixedly connected to the upper end of the base, a hydraulic rod fixedly connected to the fixed frame, a pressure sensor fixedly connected to the lower end of the hydraulic rod, a pressure plate fixedly connected to the lower end of the pressure sensor, a display mounted on the fixed frame, the display being signal-connected to the pressure sensor, the hydraulic rod being located directly above the center of the workbench, and a center positioning mechanism being provided on the workbench.
[0006] Preferably, the central positioning mechanism includes four fixed ears, each of which is provided with a connecting rod. One end of each connecting rod is fixedly connected to a positioning plate, and a spring is fixedly connected between the positioning plate and the fixed ear. A pulling mechanism is provided on the connecting rod.
[0007] Preferably, the pulling mechanism includes a telescopic rod, which is fixedly connected to the base. A pull rope is fixedly connected to the upper end of the telescopic rod, and the pull rope is connected to the other end of the connecting rod.
[0008] Preferably, a fixed pulley is fixedly connected to the workbench, and the pull rope passes through the fixed pulley.
[0009] Preferably, a protective frame is fixedly connected to the fixing frame, and the protective frame is located on the outside of the workbench.
[0010] Preferably, the pull rope is a steel wire rope.
[0011] The present invention proposes a high-precision building mortar testing device, which has the following advantages: by aligning the center of the test block with the center of the bearing plate through the central positioning mechanism, the center of the test block is aligned with the center of the hydraulic rod directly below, thereby improving the accuracy of the test results and also contributing to the reliability of the test results. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a high-precision building mortar testing device proposed in this utility model. Figure 2 This is a side view of a high-precision building mortar testing device proposed in this utility model; Figure 3 This is a top view of a high-precision building mortar testing device proposed in this utility model.
[0013] In the diagram: 1. Base; 2. Protective frame; 3. Fixing bracket; 4. Hydraulic rod; 5. Display; 6. Pressure plate; 7. Pressure sensor; 8. Connecting rod; 9. Spring; 10. Fixed pulley; 11. Fixing lug; 12. Telescopic rod; 13. Pull rope; 14. Workbench; 15. Positioning plate. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0015] Reference Figure 1-3 A high-precision building mortar testing device includes a base 1, a fixed frame 3 fixedly connected to the upper end of the base 1, a hydraulic rod 4 fixedly connected to the fixed frame 3, a pressure sensor 7 fixedly connected to the lower end of the hydraulic rod 4, and a pressure plate 6 fixedly connected to the lower end of the pressure sensor 7; a display 5 is installed on the fixed frame 3, and the display 5 is signal-connected to the pressure sensor 7. The pressure sensor 7 detects the applied pressure, and the display 5 displays the applied pressure.
[0016] A workbench 14 is fixedly connected to the upper end of the base 1. The hydraulic rod 4 is located directly above the center of the workbench 14. A center positioning mechanism is provided on the workbench 14. Pressure is applied to the test block by the hydraulic rod 4 to test the compressive strength of the mortar. At the same time, the center positioning mechanism aligns the center of the test block with the center of the bearing plate 6, thereby ensuring that the center of the test block is aligned with the center of the hydraulic rod 4, which improves the accuracy of the test results and also helps to improve the reliability of the test results.
[0017] In another preferred embodiment of this utility model, the central positioning mechanism includes four fixed ears 11, which are fixedly connected to the worktable 14. Each of the four fixed ears 11 is provided with a connecting rod 8, and one end of each of the four connecting rods 8 is fixedly connected to a positioning plate 15. A spring 9 is fixedly connected between the positioning plate 15 and the fixed ears 11. The spring 9 is a compression spring. The test block has a cubic structure. When placed in the middle of the four positioning plates 15, the four positioning plates 15 fit against the four sides of the test block. The restoring force of the spring 9 when compressed generates a pushing force on the positioning plate 15, pushing the test block to the center position of the worktable 14, which is directly below the axis of the hydraulic rod 4.
[0018] In another preferred embodiment of this utility model, a pulling mechanism is provided on the other end of the connecting rod 8. The pulling mechanism includes a telescopic rod 12, which can be a hydraulic or electric telescopic rod. The telescopic rod 12 is fixedly connected to the base 1, and a pull rope 13, which is a steel wire rope, is fixedly connected to the upper end of the telescopic rod 12. The pull rope 13 is connected to the other end of the connecting rod 8. Four fixed pulleys 10 are fixedly connected to the workbench 14, and the four pull ropes 13 pass through the fixed pulleys 10 and connect to the connecting rod 8. By retracting the telescopic rod 12, the fixed pulleys 10 change the direction of the pull ropes 13, causing the pull ropes 13 to pull the connecting rod 8 to move, thereby moving the positioning plate 15. The spring 9 is compressed so that during testing, the positioning plate 15 is moved away from the test block, preventing the positioning plate 15 from contacting the test block and causing interference during testing.
[0019] In another preferred embodiment of this utility model, a protective frame 2 is fixedly connected to the fixing frame 3. The protective frame 2 is located outside the workbench 14. When the test block is unqualified and crushed, causing splashing, the protective frame 2 plays a protective role.
[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-precision building mortar testing device, comprising a base (1), characterized in that, A workbench (14) is fixedly connected to the upper end of the base (1). A fixed frame (3) is fixedly connected to the upper end of the base (1). A hydraulic rod (4) is fixedly connected to the fixed frame (3). A pressure sensor (7) is fixedly connected to the lower end of the hydraulic rod (4). A pressure plate (6) is fixedly connected to the lower end of the pressure sensor (7). A display (5) is installed on the fixed frame (3). The display (5) is connected to the pressure sensor (7) via a signal. The hydraulic rod (4) is located directly above the center of the workbench (14). A center positioning mechanism is provided on the workbench (14).
2. The high-precision building mortar testing device according to claim 1, characterized in that, The central positioning mechanism includes four fixed ears (11), each of which is provided with a connecting rod (8). One end of each of the connecting rods (8) is fixedly connected to a positioning plate (15). A spring (9) is fixedly connected between the positioning plate (15) and the fixed ears (11). A pulling mechanism is provided on the connecting rod (8).
3. The high-precision building mortar testing device according to claim 2, characterized in that, The pulling mechanism includes a telescopic rod (12), which is fixedly connected to the base (1). A pull rope (13) is fixedly connected to the upper end of the telescopic rod (12), and the pull rope (13) is connected to the other end of the connecting rod (8).
4. The high-precision building mortar testing device according to claim 3, characterized in that, A fixed pulley (10) is fixedly connected to the workbench (14), and the pull rope (13) passes through the fixed pulley (10).
5. The high-precision building mortar testing device according to claim 1, characterized in that, A protective frame (2) is fixedly connected to the fixed frame (3), and the protective frame (2) is located outside the workbench (14).
6. The high-precision building mortar testing device according to claim 3, characterized in that, The pull rope (13) is a steel wire rope.