Test block pressure testing machine
By designing a test block pressure testing machine that uses a rotating pressure shaft to contact the sample and is driven by a hydraulic station, the problem of difficulty in identifying abnormal pressure sensors was solved, ensuring the accuracy and reliability of test data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU DAYU ENG QUALITY TESTING CENT CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-04-24
AI Technical Summary
The pressure tester for test blocks is limited to a single pressure test during operation, and it cannot quickly identify abnormalities in the pressure sensor.
A test block pressure testing machine was designed, including a lower base, an upper base, a fixed bowl, an upper pressure sensor, a hydraulic station, and a hydraulic cylinder. The upper pressure plate is brought into contact with the sample by the rotation of the lower pressure shaft. When the hydraulic station is working, the telescopic shaft drives the lower pressure sensor to rise. The data from the upper pressure sensor and the lower pressure sensor are used as mutual reference.
It enables rapid identification of pressure sensor anomalies during pressure testing, ensuring the accuracy and reliability of test data.
Smart Images
Figure CN224163502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical testing structures, and in particular to a test block pressure testing machine. Background Technology
[0002] A test block compression testing machine is a specialized device for testing the compressive strength of materials. It is primarily used in building materials and engineering structures to determine mechanical properties such as compressive strength, modulus of elasticity, and yield point. For example, in building material testing, test blocks are typically made of concrete, bricks, stone, or other materials requiring compressive strength testing. A test block is a small material sample used for testing, usually a standard-sized cube or cylinder. Compression testing is a method of evaluating a material's compressive strength by applying axial pressure. During the test, gradually increasing pressure is applied to the test block using hydraulic or mechanical means. The applied pressure is precisely controlled, and data changes are recorded until the test block fails, thus obtaining its maximum compressive strength value. This equipment is widely used in the construction industry, especially in evaluating the quality and performance of building materials such as concrete, bricks, and stone.
[0003] The pressure test in the test block pressure testing machine is singular, and it cannot quickly identify when a specific pressure sensor malfunctions. Utility Model Content
[0004] The main purpose of this utility model is to provide a test block pressure testing machine, which aims to solve the problems of single pressure testing during the operation of the test block pressure testing machine and the inability to quickly identify abnormalities in the pressure sensor.
[0005] To achieve the above objectives, this utility model provides a test block pressure testing machine, comprising:
[0006] The lower base serves as the foundation;
[0007] The upper base is supported on the lower base by multiple guide columns, and the upper base is threadedly connected to a lower pressure shaft;
[0008] A fixed bowl with an open bottom is provided, and the pressing shaft is inserted into the fixed bowl to form a hook. The fixed bowl is rotatably mounted on the pressing shaft.
[0009] An upper pressure sensor is installed inside the fixed bowl and protrudes downwards from the fixed bowl;
[0010] The upper pressure plate is movably hung on the lower end of the lower pressure shaft in the vertical direction, and the upper pressure sensor and the upper pressure plate are in clearance fit in the vertical direction;
[0011] The hydraulic station is located on the lower base;
[0012] A hydraulic cylinder includes an outer cylinder and a telescopic shaft. The outer cylinder is mounted on the hydraulic station, and the telescopic shaft is mounted on the upper part of the outer cylinder and drives the extension and retraction of the hydraulic station. A downward pressure sensor is mounted on the upper end of the telescopic shaft.
[0013] The lower pressure plate is connected to the upper end of the lower pressure sensor.
[0014] Furthermore, the upper pressure plate is attached to the fixed bowl by a plurality of first bolts.
[0015] Furthermore, when the upper pressure plate contacts the upper pressure sensor, the lower end of the first bolt is higher than the lower end of the upper pressure plate.
[0016] Furthermore, the upper base includes a fixing sleeve, which passes through the upper base in the thickness direction and forms a fixation in the vertical direction, and the lower pressure shaft is threadedly connected to the fixing sleeve.
[0017] Furthermore, the upper pressure plate forms a guiding fit on the multiple guide posts.
[0018] Furthermore, a fixing hole is provided at the top of the pressing shaft, and the central axis of the fixing hole is horizontally positioned.
[0019] Furthermore, an operating lever is provided on the fixing hole.
[0020] Furthermore, the upper end of the upper pressure sensor is connected to the lower end of the lower pressure shaft.
[0021] Furthermore, a protective cover is connected between the lower base and the upper base.
[0022] Furthermore, the protective cover is made of a transparent material.
[0023] The test block pressure testing machine provided by this utility model has a lower pressure shaft threadedly connected to the upper base. The lower end of the fixed bowl is open, and the lower pressure shaft passes through the fixed bowl to form a hook. The upper pressure sensor is installed inside the fixed bowl and protrudes from it. The upper pressure plate moves vertically and is hooked to the lower end of the lower pressure shaft. The outer cylinder is set on the hydraulic station, and the telescopic shaft is set on the upper part of the outer cylinder and is driven by the hydraulic station for telescopic movement. The upper end of the telescopic shaft is set with the lower pressure sensor. By rotating the lower pressure shaft, the upper pressure plate begins to contact the sample. At this time, the hydraulic station is activated, the telescopic shaft moves upward, and the lower pressure sensor and the lower pressure plate rise together, and the sample testing process begins. The test data between the upper pressure sensor and the lower pressure sensor can be used as mutual reference. Attached Figure Description
[0024] Figure 1 This is a schematic diagram (first perspective) of the test block pressure testing machine of the first embodiment of this utility model;
[0025] Figure 2 This is a schematic diagram (second perspective) of the test block pressure testing machine of the first embodiment of this utility model;
[0026] Figure 3 This is a schematic diagram (partial sectional view) of the test block pressure testing machine of the first embodiment of this utility model.
[0027] Figure 4 yes Figure 3 Enlarged view of part A in the image;
[0028] Figure 5 yes Figure 3 Enlarged view of part B in the image;
[0029] Figure 6 This is a schematic diagram of the test block pressure testing machine according to the second embodiment of this utility model. Detailed Implementation
[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0031] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.
[0032] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.
[0033] Reference Figures 1 to 6 In one embodiment of this utility model, a test block pressure testing machine includes:
[0034] The lower base 100 serves as the foundation;
[0035] The upper base 200 is supported on the lower base 100 by multiple guide columns 210, and the upper base 200 is threadedly connected to the lower pressure shaft 220.
[0036] The fixed bowl 300 is open at the bottom, and the pressing shaft 220 passes through the fixed bowl 300 to form a hook. The fixed bowl 300 is rotatably mounted on the pressing shaft 220.
[0037] The upper pressure sensor 400 is installed inside the fixed bowl 300 and protrudes downward from the fixed bowl 300;
[0038] The upper pressure plate 500 is vertically movable and hooked to the lower end of the lower pressure shaft 220. The upper pressure sensor 400 and the upper pressure plate 500 are in clearance fit in the vertical direction.
[0039] Hydraulic station 600 is installed on the lower base 100;
[0040] The hydraulic cylinder includes an outer cylinder 710 and a telescopic shaft 720. The outer cylinder 710 is mounted on the hydraulic station 600. The telescopic shaft 720 is mounted on the upper part of the outer cylinder 710 and drives the extension and retraction of the hydraulic station 600. A downward pressure sensor 730 is mounted on the upper end of the telescopic shaft 720.
[0041] The lower pressure plate 800 is connected to the upper end of the lower pressure sensor 730.
[0042] In the existing technology, the pressure test of the test block pressure testing machine is singular during operation, and it cannot quickly identify when a specific pressure sensor malfunctions.
[0043] The test block pressure testing machine provided by this utility model uses a lower base 100 as the base structure foundation.
[0044] The upper base 200 is supported on the lower base 100 by multiple guide posts 210, for example, four guide posts 210 are located at the four corners. The upper base 200 is threadedly connected to a lower pressure shaft 220, and the lower pressure shaft 220 rises and falls during the screwing-in and screwing-out process.
[0045] The lower end of the fixed bowl 300 is open, and the lower pressure shaft 220 passes through the fixed bowl 300 to form a hook. For example, the lower end of the lower pressure shaft 220 is provided with a protruding ring, so that while the fixed bowl 300 is hooked to the lower pressure shaft 220, the fixed bowl 300 can rotate freely.
[0046] The upper pressure sensor 400 is installed inside the fixed bowl 300 and protrudes from the fixed bowl 300. The upper pressure sensor 400 can be fixed to the lower pressure shaft 220 or the fixed bowl 300.
[0047] The upper pressure plate 500 is vertically movable and hooked to the lower end of the lower pressure shaft 220. The upper pressure sensor 400 and the upper pressure plate 500 are in clearance fit in the vertical direction. The upper pressure plate 500 only interacts with the upper pressure sensor 400 when the upper pressure plate 500 rises.
[0048] The hydraulic station 600 is located on the lower base 100 and provides high-pressure oil, providing a foundation for the subsequent operation of the hydraulic cylinder.
[0049] The hydraulic cylinder includes an outer cylinder 710 and a telescopic shaft 720. The outer cylinder 710 is mounted on the hydraulic station 600. The telescopic shaft 720 is mounted on the upper part of the outer cylinder 710 and drives the extension and retraction of the hydraulic station 600. A downward pressure sensor 730 is mounted on the upper end of the telescopic shaft 720.
[0050] The lower pressure plate 800 is connected to the upper end of the lower pressure sensor 730.
[0051] The lower pressure plate 800 is the sample placement position. Through the rotation of the lower pressure shaft 220, the upper pressure plate 500 begins to contact the sample, and the gap between the upper pressure plate 500 and the upper pressure sensor 400 gradually decreases until they make contact. At this time, the hydraulic station 600 is activated, the telescopic shaft 720 moves upward, and the lower pressure sensor 730 rises together with the lower pressure plate 800, initiating the sample testing process. The test data between the upper pressure sensor 400 and the lower pressure sensor 730 can then be used for mutual reference.
[0052] In summary, the upper base 200 is threadedly connected to the lower pressure shaft 220, the lower end of the fixed bowl 300 is open, the lower pressure shaft 220 passes through the fixed bowl 300 to form a hook, the upper pressure sensor 400 is installed inside the fixed bowl 300 and protrudes from the fixed bowl 300, the upper pressure plate 500 moves vertically and is hooked to the lower end of the lower pressure shaft 220, the outer cylinder 710 is set on the hydraulic station 600, the telescopic shaft 720 is set on the upper part of the outer cylinder 710 and is the telescopic drive of the hydraulic station 600, and the upper end of the telescopic shaft 720 is set with the lower pressure sensor 730; by rotating the lower pressure shaft 220, the upper pressure plate 500 begins to contact the sample, at this time the hydraulic station 600 is turned on, the telescopic shaft 720 moves upward, the lower pressure sensor 730 and the lower pressure plate 800 rise together, the sample testing process begins, and the test data between the upper pressure sensor 400 and the lower pressure sensor 730 can be used as mutual reference.
[0053] Reference Figures 3 to 4 In one embodiment, the upper pressure plate 500 is attached to the fixed bowl 300 by a plurality of first bolts 510.
[0054] In this embodiment, a method for fixing the upper pressure plate 500 is provided, which has the advantages of simplicity and reliability. For example, the upper pressure plate 500 is provided with a hole structure, the rod segment of the first bolt 510 is connected to the fixing bowl 300, and the cap segment is hooked onto the upper pressure plate 500. The number of first bolts 510 is four or six, which can stably hook the plate without increasing the complexity of the structure.
[0055] In one embodiment, when the upper pressure plate 500 contacts the upper pressure sensor 400, the lower end of the first bolt 510 is higher than the lower end of the upper pressure plate 500.
[0056] In this embodiment, the first bolt 510 is restricted so that it will not interfere with the operation of the upper pressure plate 500 during use.
[0057] Reference Figures 1 to 5 In one embodiment, the upper base 200 includes a fixing sleeve 230, which passes through the upper base 200 in the thickness direction and forms a fixation in the vertical direction, and the lower pressure shaft 220 is threadedly connected to the fixing sleeve 230.
[0058] In this embodiment, the introduction of the fixing sleeve 230 reduces the difficulty of processing and improves the convenience of maintenance. For example, the fixing sleeve 230 supports the upper base 200 in the vertical direction and is fixed by bolts.
[0059] In one embodiment, the upper pressure plate 500 forms a guiding engagement with the plurality of guide posts 210.
[0060] In this embodiment, the rotation of the upper pressure plate 500 in the circumferential direction is restricted by the guide post 210, thus avoiding the introduction of other restrictions.
[0061] Reference Figures 1 to 3 In one embodiment, a fixing hole 221 is provided at the top of the pressing shaft 220, and the central axis of the fixing hole 221 is horizontally set.
[0062] In this embodiment, the lower pressure shaft 220 is rotated using a pry bar or similar structure based on the fixing hole 221 on the lower pressure shaft 220, eliminating the need for other automated drive structures. This reduces the overall structural complexity and also reduces the possibility of structural abnormalities.
[0063] In one embodiment, an operating lever is provided on the fixing hole 221.
[0064] In this embodiment, the lower shaft 220 can be manually driven to rotate using an operating lever, eliminating the need for an external drive structure. The connection between the operating lever and the fixing hole 221 can be a sleeve connection or a threaded connection, etc.
[0065] In one embodiment, the upper end of the upper pressure sensor 400 is connected to the lower end of the lower pressure shaft 220.
[0066] In this embodiment, the upper and lower ends of the upper pressure sensor 400 correspond to the lower pressure shaft 220 and the lower pressure plate 800, respectively, so that the pressure is applied more directly and the possibility of abnormal deformation of the fixed bowl 300 is reduced.
[0067] Reference Figure 6 In one embodiment, a protective cover 900 is connected between the lower base 100 and the upper base 200.
[0068] In this embodiment, the protective cover 900 serves a protective function, preventing accidental injury caused by splashed materials during testing. A door structure can be provided on the protective cover 900 to facilitate smooth operation.
[0069] In one embodiment, the protective cover 900 is made of a transparent material.
[0070] In this embodiment, the protective cover 900 is made of a transparent material, thus providing protection while allowing for direct observation of the testing process. The protective cover 900 is preferably made of polymer or tempered glass.
[0071] In summary, the test block pressure testing machine provided by this utility model has a lower pressure shaft 220 threadedly connected to the upper base 200, an open lower end of the fixed bowl 300, and the lower pressure shaft 220 inserted into the fixed bowl 300 to form a hook. The upper pressure sensor 400 is installed inside the fixed bowl 300 and protrudes from the fixed bowl 300. The upper pressure plate 500 is vertically movably hooked to the lower end of the lower pressure shaft 220. The outer cylinder 710 is set on the hydraulic station 600, and the telescopic shaft 720 is set on the upper part of the outer cylinder 710 and is the telescopic drive of the hydraulic station 600. The upper end of the telescopic shaft 720 is set with a lower pressure sensor 730. With the rotation of the lower pressure shaft 220, the upper pressure plate 500 begins to contact the sample. At this time, the hydraulic station 600 is turned on, the telescopic shaft 720 moves upward, and the lower pressure sensor 730 and the lower pressure plate 800 rise together, and the sample testing process begins. The test data between the upper pressure sensor 400 and the lower pressure sensor 730 can be used as mutual reference.
[0072] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A test block compression testing machine characterized by, include: The lower base (100) serves as the foundation; The upper base (200) is supported on the lower base (100) by multiple guide columns (210), and the upper base (200) is threadedly connected to a lower pressure shaft (220). The fixed bowl (300) is open at the bottom, and the lower pressing shaft (220) is inserted into the fixed bowl (300) to form a hook. The fixed bowl (300) is rotatably mounted on the lower pressing shaft (220). The upper pressure sensor (400) is installed inside the fixed bowl (300) and protrudes downward from the fixed bowl (300). The upper pressure plate (500) is vertically movable and hooked to the lower end of the lower pressure shaft (220). The upper pressure sensor (400) and the upper pressure plate (500) are in clearance fit in the vertical direction. A hydraulic station (600) is installed on the lower base (100); The hydraulic cylinder includes an outer cylinder (710) and a telescopic shaft (720). The outer cylinder (710) is mounted on the hydraulic station (600). The telescopic shaft (720) is mounted on the upper part of the outer cylinder (710) and is used to drive the extension and retraction of the hydraulic station (600). A pressure sensor (730) is mounted on the upper end of the telescopic shaft (720). The lower pressure plate (800) is connected to the upper end of the lower pressure sensor (730).
2. The test block pressure testing machine according to claim 1, characterized in that, The upper pressure plate (500) is attached to the fixed bowl (300) by a plurality of first bolts (510).
3. The test block press according to claim 2, wherein, When the upper pressure plate (500) contacts the upper pressure sensor (400), the lower end of the first bolt (510) is higher than the lower end of the upper pressure plate (500).
4. The test block pressure testing machine according to claim 1, characterized in that, The upper base (200) includes a fixing sleeve (230), which passes through the upper base (200) in the thickness direction and forms a fixation in the vertical direction. The lower pressure shaft (220) is threadedly connected to the fixing sleeve (230).
5. The test block pressure testing machine according to claim 1, characterized in that, The upper pressure plate (500) forms a guiding fit on the multiple guide posts (210).
6. The test block pressure testing machine according to claim 1, characterized in that, The top of the pressing shaft (220) is provided with a fixing hole (221), and the central axis of the fixing hole (221) is set horizontally.
7. The test block pressure testing machine according to claim 6, characterized in that, An operating lever is provided on the fixing hole (221).
8. The test block pressure testing machine according to any one of claims 1 to 7, characterized in that, The upper end of the upper pressure sensor (400) is connected to the lower end of the lower pressure shaft (220).
9. The test block pressure testing machine according to any one of claims 1 to 7, characterized in that, A protective cover (900) is connected between the lower base (100) and the upper base (200).
10. The test block pressure testing machine according to claim 9, characterized in that, The protective cover (900) is made of transparent material.