Mortar sample cylinder for reaction setting time

Abstract

The application discloses a mortar sample cylinder for reaction setting time, and belongs to the field of test sample molds. The mortar sample cylinder comprises a cylinder body, a lifting platform and a base. The cylinder body is hollow. The lifting platform is movably arranged in the cylinder body. A supporting rod is arranged at the bottom of the lifting platform. The base is arranged below the cylinder body and is provided with a limiting groove for the supporting rod to extend into. A plurality of positioning holes are uniformly and intermittently arranged on the groove wall of the limiting groove along the extending direction of the groove wall. A locking piece is arranged on the supporting rod and is inserted into any one of the positioning holes. The lifting platform makes the whole sample removal process not need to consume much energy of the staff. The mortar sample cylinder is simple, convenient, fast, time-saving and labor-saving, and remarkably improves the sample removal efficiency. The staff does not need to use external measuring tools, and the steps of repeated measurement and calibration are saved. The mortar sample cylinder simplifies the operation process, avoids subjective errors caused by manual measurement, and guarantees the consistency of test conditions of different test points.

Description

Technical Field

[0001] This utility model relates to the field of test molds, and in particular to mortar sample cylinders for reaction setting time. Background Technology

[0002] The setting time of mortar is a key indicator for evaluating its construction performance and strength development, directly affecting the connection of construction procedures and the final quality stability of building projects. Currently, the industry generally adopts the penetration resistance method as the standard test method for mortar setting time. This method is implemented in accordance with the "Standard for Test Methods of Basic Performance of Building Mortar" (JGJ / T70-2009). The core requirement is to drive the penetration rod into the mortar sample through a penetration resistance meter, collect penetration resistance data at different times, and determine the corresponding setting time when the resistance reaches the set threshold (usually 0.7MPa for initial setting and 2.8MPa for final setting). At the same time, it is clearly required that the distance between the penetration rod and the edge of the container or the already penetrated part is at least 12mm to avoid interference from adjacent measuring points and boundary effects affecting the test accuracy.

[0003] However, the current penetration resistance test method suffers from significant technical defects in the movement and positioning of the sample tube. Specifically, after completing the penetration test at one point, the operator needs to manually move the mortar sample tube to switch to the next test point. To meet the national standard requirement of 12mm spacing, the operator usually needs to manually measure and position the sample using measuring tools such as a ruler. This manual operation method has the following problems: First, the operation process is cumbersome, requiring repeated measurement, movement, and calibration steps for each point switch, thus extending the test cycle and reducing test efficiency. Second, manual measurement and movement are prone to positioning errors, making it difficult to accurately ensure that the distance between each insertion point and between the insertion point and the tube wall strictly meets the 12mm standard requirement. This leads to inconsistent test conditions at different points, introducing test errors and affecting the accuracy and reliability of the setting time determination results. Third, most existing sample tubes are of integrated structure. After the mortar sets, the sample tends to stick to the tube wall, lacking a convenient demolding mechanism. The operator needs to spend a lot of effort to remove the sample, further increasing the complexity of the test operation.

[0004] Therefore, in order to address the technical pain points of cumbersome sample tube positioning, large errors, and inconvenient demolding in the existing mortar setting time test, there is an urgent need to design a mortar sample tube that can achieve precise positioning of the penetration resistance meter insertion point, simplify the operation process, and facilitate demolding, so as to improve the test efficiency and the accuracy of the test results. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a mortar sample cylinder that can achieve precise positioning of the insertion point of the penetration resistance meter, simplify the operation process and facilitate demolding, so as to improve the test efficiency and the accuracy of the test results.

[0006] To achieve the above objectives, this utility model provides a mortar sample cylinder for reacting setting time, comprising a cylinder body, a lifting platform, and a base. The cylinder body is hollow, and the lifting platform is movably disposed within the cylinder body, forming a space for accommodating the mortar sample. A support rod is formed at the bottom of the lifting platform, and the base is located below the cylinder body and has a limiting groove for the support rod to extend into. A plurality of positioning holes are evenly and spaced along the extension direction of the groove wall. A locking element is provided on the support rod to engage with any one of the positioning holes.

[0007] Preferably, it further includes a sleeve, which is threadedly connected to the support rod, and the locking element is provided on the outer wall of the sleeve.

[0008] Preferably, an annular flange is formed on the inner wall of the cylinder near the base, and the lifting platform is located above the annular flange.

[0009] Preferably, a knob is detachably mounted on the end of the support rod away from the cylinder.

[0010] Preferably, a groove for placing an external baffle is provided on the top surface of the cylinder.

[0011] Preferably, the outer wall of the cylinder is symmetrically provided with lugs.

[0012] Preferably, at least 8 positioning holes are provided on the opposite sides of the limiting groove, and the distance between any two adjacent positioning holes is at least 12mm.

[0013] Beneficial effects: 1. In the mortar sample cylinder for reacting setting time of this utility model, the lifting platform can stably support the sample and slide along the extension direction of the cylinder to push out the solidified sample, thereby completing the removal of the sample. The entire sample removal process does not require much effort from the staff. It is simple, convenient and quick to use, saves time and effort, and significantly improves the efficiency of sample removal.

[0014] 2. In the mortar sample cylinder for reacting setting time in this utility model, the movement direction of the cylinder can be restricted by the insertion and cooperation of the support rod and the limiting groove, thereby avoiding deviation when the operator manually moves the cylinder. Compared with the unguided manual movement in the prior art, this utility model significantly improves the stability of the sample during the movement process, reduces test errors, and is reliable in use.

[0015] 3. In the process of using the mortar sample cylinder for reaction setting time, the staff does not need to use external measuring tools. They only need to push the cylinder along the extension direction of the limiting groove, thus eliminating the need for repeated measurement and calibration steps. This simplifies the operation process, avoids subjective errors caused by manual measurement, and ensures the consistency of test conditions at different test points. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a mortar sample cylinder for reacting setting time according to an embodiment of the present invention from a first-view perspective. Figure 2 This is a schematic diagram of the mortar sample cylinder for reaction setting time according to an embodiment of the present invention from a second perspective. Figure 3 This is a diagram showing the usage state of the mortar sample cylinder relative to the base in an embodiment of this utility model for reacting setting time; Figure 4 This is an isometric sectional view of a mortar sample cylinder used for reacting setting time according to an embodiment of the present invention.

[0018] In the diagram: 1-cylinder; 2-lifting platform; 3-base; 4-support rod; 5-limiting groove; 6-positioning hole; 7-sleeve; 8-annular flange; 9-knob; 10-groove; 11-support lug. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example 1: This invention proposes a mortar sample cylinder for determining reaction setting time.

[0026] In one embodiment of this utility model, the mortar sample cylinder for reacting setting time includes a cylinder 1, a lifting platform 2, and a base 3. The cylinder 1 is hollow. The lifting platform 2 is movably disposed inside the cylinder 1 and forms a space for accommodating the sample with the cylinder 1. A support rod 4 is formed at the bottom of the lifting platform 2. The base 3 is located below the cylinder 1 and has a limiting groove 5 for the support rod 4 to extend into. A plurality of positioning holes 6 are evenly and intermittently formed on the groove wall of the limiting groove 5 along its extension direction. A locking member is provided on the support rod 4 to engage with any one of the positioning holes 6.

[0027] Working principle: The mortar sample cylinder of this utility model, used to measure the setting time, is formed by a hollow cylinder 1 and a movable lifting platform 2 to accommodate the sample. The locking device on the support rod 4 is engaged with the positioning holes 6 evenly spaced on the limiting groove 5. This replaces the existing method of manually measuring the insertion point of the penetration resistance meter with a ruler, solving the problems of cumbersome operation and large error in positioning the insertion point, and improving the test efficiency. At the same time, the lifting platform 2 can lift the solidified sample relative to the base 3, so that the staff does not need to spend a lot of effort to remove the sample, simplifying the operation process, saving time and effort, and further improving the test efficiency.

[0028] Specifically, such as Figures 1 to 4 As shown, in the mortar sample cylinder for reacting setting time of this utility model, since the cylinder 1 is hollow, its internal space can be used in conjunction with the lifting platform 2 to form a placement space for accommodating the sample. The structural design is simple and reasonable. Furthermore, since the lifting platform 2 is movably positioned inside the cylinder 1, the movably positioned installation method of the lifting platform 2 can be a sliding snap-fit, that is, the lifting platform 2 can slide along the extension direction of the cylinder 1. This allows the lifting platform 2 to stably support the sample and slide along the extension direction of the cylinder 1 to push out the solidified sample, thereby completing the removal of the sample. The entire sample removal process does not require much effort from the staff. It is simple, convenient, quick, time-saving, and labor-saving, significantly improving the sample removal efficiency.

[0029] Understandably, since the bottom of the lifting platform 2 has a support rod 4, and the base 3 is located below the cylinder 1, and the base 3 has a limiting groove 5, and the end of the support rod 4 away from the lifting platform 2 extends into the limiting groove 5, the movement direction of the cylinder 1 can be restricted through the insertion and cooperation of the support rod 4 and the limiting groove 5, thereby preventing the cylinder 1 from deviating when the operator manually moves it. Compared with the unguided manual movement in the prior art, this utility model significantly improves the stability of the sample during the movement process, reduces test errors, and is reliable in use. Furthermore, since the limiting groove 5 has a number of positioning holes 6 evenly and at intervals along its extension direction, and the support rod 4 is provided with a locking component that can be inserted into any of the positioning holes 6, the locking component can be an elastic pin or the like in the prior art. The elastic pin is a pin with an elastic element connected to one end. By inserting the locking component into the positioning hole 6, the movement of the cylinder 1 relative to the base 3 relative to the insertion rod can be restricted, thereby further reducing the introduction of test errors and ensuring the accuracy and effectiveness of the test results; at the same time, when the staff needs to move... When the sample is moved to the next test point, the operator can directly push the cylinder 1 relative to the base 3. At this time, the locking part can disengage from the positioning hole 6 at the initial position. After moving to the positioning hole 6 corresponding to the next test point, it re-engages with the positioning hole 6. This eliminates the need for external measuring tools; the operator only needs to push the cylinder 1 along the extension direction of the limiting groove 5. This eliminates the need for repeated measurement and calibration steps, simplifies the operation process, avoids subjective errors caused by manual measurement, and ensures the consistency of test conditions at different test points. In addition, it should be noted that the distance between two adjacent test points and between the test point and the edge of the cylinder 1 is not less than 12mm to meet the requirements of the "Standard for Basic Performance Test Methods of Building Mortar" (JGJ / T70-2009).

[0030] In one embodiment, such as Figures 1 to 4 As shown, it also includes a sleeve 7, which is threadedly connected to the support rod 4. A locking element is provided on the outer wall of the sleeve 7. Understandably, when the solidified sample needs to be removed after the solidification time test is completed, since the sleeve 7 is fixed by being inserted into the positioning hole 6 of the limiting groove 5 through the locking element, it cannot rotate synchronously with the support rod 4. Therefore, the operator only needs to hold the cylinder 1 and rotate the support rod 4. Using the threaded transmission principle, the support rod 4 will move upward relative to the sleeve 7, thereby driving the lifting platform 2 to rise along the inner wall of the cylinder 1 in a direction away from the base 3, and thus lift the solidified sample, so that the operator can directly remove and pick up the sample. The entire removal process does not require any additional auxiliary tools. The operator can quickly remove the sample by simply rotating it. This simplifies the operation process and improves the convenience and efficiency of sample removal. At the same time, the stability of the threaded connection also ensures the smoothness of the lifting process and avoids sample damage due to uneven force.

[0031] In one embodiment, an annular flange 8 is formed on the inner wall of the cylinder 1 near the base 3, and the lifting platform 2 is located above the annular flange 8. Specifically, as shown... Figure 1 and Figure 4 As shown, the annular flange 8 provides precise lower limit support for the lifting platform 2, limiting the movement range of the lifting platform 2 within the cylinder 1. This avoids hard collision damage between components and ensures the volume stability of the space inside the cylinder 1. The structural design is simple and reasonable.

[0032] In one embodiment, a knob 9 is detachably mounted on the end of the support rod 4 away from the cylinder 1. Specifically, as shown... Figure 2 and Figure 4 As shown, the knob 9 provides a stable grip and force application point for the operator, allowing for easier and more precise rotation of the support rod 4. This enables the lifting platform 2 to smoothly lift the sample, making operation convenient and reliable. Furthermore, the knob 9 and support rod 4 can be detached via a threaded connection, facilitating disassembly and assembly of the knob 9 and replacement of structural components such as the support rod 4 and locking parts, thus aiding in maintenance.

[0033] In one embodiment, such as Figure 1 and Figure 3 As shown, a groove 10 for placing an external baffle is provided on the top surface of the cylinder 1. It should be noted that, according to the "Standard for Test Methods of Basic Performance of Building Mortar" (JGJ / T70-2009), after the mortar sample is placed in the sample cylinder, the opening of the sample cylinder must be covered with a baffle, and it should be placed in an environment with a temperature of 20±2℃ and a relative humidity of not less than 90% for 24 hours to ensure that the mortar sample completes the initial hydration reaction under stable conditions and avoids external interference. However, in the existing technology, because the opening at the top of the sample cylinder lacks a positioning structure for limiting the baffle, the baffle is prone to displacement or tilting when placed by the operator. This can easily lead to uneven exposure or pressure on the sample surface, which not only easily causes mortar moisture loss and contamination but also damages the flatness of the sample surface, affecting the accuracy of the subsequent penetration resistance test points. In the mortar sample cylinder for reacting setting time of this utility model, the groove 10 opened at the top of the cylinder 1 can stably limit the external baffle, ensuring that the external baffle always stably covers the opening of the cylinder 1, thereby effectively preventing the baffle from shifting due to external factors during the static setting process, and thus better maintaining the stability of the environment around the sample, strictly meeting the static setting requirements stipulated by national standards.

[0034] In one embodiment, specifically, as Figures 1 to 3 As shown, the outer wall of the cylinder 1 is symmetrically provided with lugs 11, which makes it easy for staff to pick up and move the cylinder 1, facilitates operation, and is convenient to use.

[0035] In one embodiment, such as Figures 2 to 4 As shown, at least eight positioning holes 6 are provided on the opposite sides of the limiting groove 5, and the distance between any two adjacent positioning holes 6 is at least 12 mm. Understandably, the national standard clearly stipulates that the penetration rod must be at least 12 mm away from the container edge and the already penetrated point. Therefore, in this embodiment, the distance between any two adjacent positioning holes 6 is preferably between 12 mm and 20 mm. This eliminates mutual interference between adjacent test points, removes the influence of boundary effects on the penetration resistance data, and ensures that the test conditions at each point meet the national standard specifications. Furthermore, by providing at least eight positioning holes 6 on the opposite sides of the limiting groove 5, sufficient independent test points can be provided for a single test, avoiding the need to repeatedly adjust the position of the cylinder 1 due to insufficient test points, thus increasing operational complexity and ensuring reliable operation.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mortar sample cylinder for determining reaction setting time, characterized in that, The device includes a cylinder (1), a lifting platform (2), and a base (3). The cylinder (1) is hollow. The lifting platform (2) is movably positioned inside the cylinder (1) and forms a space for accommodating the sample with the cylinder (1). A support rod (4) is formed at the bottom of the lifting platform (2). The base (3) is located below the cylinder (1) and has a limiting groove (5) for the support rod (4) to extend into. Several positioning holes (6) are evenly and intermittently formed on the groove wall of the limiting groove (5) along its extension direction. A locking member is provided on the support rod (4) to engage with any one of the positioning holes (6).

2. The mortar sample cylinder for reaction setting time according to claim 1, characterized in that, It also includes a sleeve (7), which is threadedly connected to the support rod (4), and the locking element is provided on the outer wall of the sleeve (7).

3. The mortar sample cylinder for reaction setting time according to claim 2, characterized in that, An annular flange (8) is formed on the inner wall of the cylinder (1) near the base (3), and the lifting platform (2) is located above the annular flange (8).

4. The mortar sample cylinder for reaction setting time according to claim 3, characterized in that, A knob (9) is detachably mounted on one end of the support rod (4) away from the cylinder (1).

5. The mortar sample cylinder for reaction setting time according to claim 4, characterized in that, The top surface of the cylinder (1) is provided with a groove (10) for placing an external baffle.

6. The mortar sample cylinder for reaction setting time according to claim 5, characterized in that, The outer wall of the cylinder (1) is symmetrically provided with lugs (11).

7. The mortar sample cylinder for reaction setting time according to any one of claims 1-6, characterized in that, At least eight positioning holes (6) are provided on the opposite sides of the limiting groove (5), and the distance between any two adjacent positioning holes (6) is at least 12 mm.

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