A device for testing the slump of a fair-faced concrete

Abstract

The utility model relates to a kind of clean water concrete slump testing devices, including shell, test plate, test cylinder, support column and lifting mechanism, shell is hollow and open in top, lifting mechanism is set in shell, test plate is horizontally set in top opening, test cylinder is detachably set in test plate center, support column is vertically set in shell bottom surface inner side, test plate can move up and down along support column, first connecting rod is horizontally set in support column upper end, second connecting rod is horizontally set in test cylinder middle part both sides symmetry, measuring column is vertically set on test plate, measuring scale is horizontally set on measuring column, measuring scale is set outside measuring column by annular sleeve, and can slide and horizontally rotate up and down along measuring column, measuring column is fixed by detachable bolt with measuring column, compared with manually lifting test cylinder upwards, the utility model can better guarantee the verticality of test cylinder in operation process, reduce the measurement error caused by test cylinder inclination.

Description

Technical Field

[0001] This utility model relates to the field of fair-faced concrete technology, specifically to a fair-faced concrete slump testing device. Background Technology

[0002] Exposed concrete is a style of architectural modernism, also known as decorative concrete due to its highly decorative effect. When used in interior spaces, it can be combined with industrial-style designs, using special molds such as bamboo texture to create natural textures and enhance the spatial quality. Exposed concrete can be directly applied to interior walls for decoration, and precast exposed concrete panels are commonly used for room partitions and interior wall decoration.

[0003] Existing fair-faced concrete slump testing devices typically place the test cylinder on a flat surface, fill it with concrete, and then lift the cylinder. When manually lifting the cylinder, it is impossible to guarantee its verticality. Furthermore, when manually measuring the highest point of the slumped concrete with a ruler, it is difficult to ensure the ruler's verticality, and the reading error of the corresponding scale on the ruler at the highest point of the concrete is also relatively large, resulting in low measurement accuracy of existing slump testing methods. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a slump testing device for fair-faced concrete in response to the above-mentioned shortcomings.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A slump testing device for fair-faced concrete includes a shell, a test plate, a test cylinder, a support column, and a lifting mechanism. The shell is hollow and open at the top. A lifting mechanism is installed inside the shell. The test plate is horizontally positioned at the top opening. A test cylinder is detachably mounted at the center of the test plate. A support column is vertically mounted on the inner side of the bottom surface of the shell, penetrating and extending above the test plate. The test plate can move up and down along the support column. A first connecting rod is horizontally mounted at the upper end of the support column. Second connecting rods are horizontally symmetrically mounted on both sides of the middle of the test cylinder. The second connecting rods and their corresponding first connecting rods are located on the same horizontal line and are detachably connected. A measuring column for measuring the concrete height is vertically mounted on the test plate. A measuring ruler for measuring the concrete radius is horizontally mounted on the measuring column. The measuring ruler is sleeved on the outside of the measuring column via an annular sleeve and can slide up and down and rotate horizontally along the measuring column. The measuring column is fixed to the measuring column by detachable bolts.

[0007] Furthermore, the lifting mechanism includes multiple pneumatic rods, a mounting frame, a connecting plate, and a pressure rod. Multiple pneumatic rods are arranged on the outer shell below the test plate. A mounting frame is arranged at the bottom of the test plate. The telescopic ends of the multiple pneumatic rods all penetrate and extend into the inner side of the mounting frame. The mounting frame is fixedly connected to the telescopic columns of the multiple pneumatic rods. A connecting plate is horizontally arranged on the inner side of the mounting frame. The connecting plate is fixedly connected to the air release guide rods of the multiple pneumatic rods. A pressure rod is horizontally hinged to the upper inner side of the mounting frame. The inner end of the pressure rod is located on the connecting plate, and the outer end extends outward through a rectangular hole on the side wall of the mounting frame. By lifting the outer end of the pressure rod, the inner end can be rotated downward to press the connecting plate, so that the connecting plate presses the air release guide rod and the pneumatic rod descends.

[0008] Furthermore, the first link and the second link are fixedly connected by a fixing pin.

[0009] Furthermore, a rectangular hole is provided on the front sidewall of the housing, and the outer end of the pressure rod extends through the rectangular hole to the outside of the housing.

[0010] Furthermore, the front sidewall of the outer casing is provided with a placement groove, and a striking rod is placed inside the placement groove.

[0011] Furthermore, the test board is provided with horizontal and vertical bubble levels for detecting whether the test board is horizontal.

[0012] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0013] This invention uses a lifting mechanism to control the raising and lowering of the test plate, along with supporting columns and other structures. Compared to manually lifting the test cylinder, this design better ensures the verticality of the test cylinder during operation and reduces measurement errors caused by the tilting of the test cylinder.

[0014] A measuring column is fixedly set on the test plate, and a measuring ruler is horizontally slidable on the measuring column to measure the height and radius of concrete. This avoids the problems of difficulty in ensuring verticality and large reading errors when using a ruler manually, and effectively improves the measurement accuracy of slump test.

[0015] The lifting mechanism uses a pneumatic rod structure. The pneumatic rod is raised or lowered by rotating the rod and pressing the connecting plate, which is relatively convenient to operate. The outer shell is equipped with a baffle, and a rectangular hole is opened on one side of the baffle to allow the rod to move. A placement slot is also provided to place the striking rod, which provides convenient conditions for testing operations.

[0016] By setting a second connecting rod on the waistline of the test cylinder, the test cylinder can still be placed upside down on the test plate after being flipped over, and is fixedly connected to the first connecting rod through the second connecting rod, which facilitates the testing of the spread of fair-faced concrete.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view schematic diagram of the present utility model;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Outer shell; 2. Test plate; 3. Test cylinder; 4. Support column; 5. Lifting mechanism; 501. Pneumatic rod; 502. Mounting bracket; 503. Connecting plate; 504. Pressure rod; 6. First connecting rod; 7. Second connecting rod; 8. Measuring column; 9. Measuring ruler; 10. Placement slot; 11. Striking rod; 12. Transverse bubble level; 13. Longitudinal bubble level. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 utility model.

[0026] like Figure 1-4As shown, a slump testing device for fair-faced concrete includes a shell 1, a test plate 2, a test cylinder 3, a support column 4, and a lifting mechanism 5. The shell 1 is hollow and open at the top. The lifting mechanism 5 is installed inside the shell 1. The test plate 2 is horizontally installed at the top opening. The test cylinder 3 is detachably installed at the center of the test plate 2. The support column 4 is vertically installed on the inner side of the bottom surface of the shell 1, penetrating and extending above the test plate 2. The test plate 2 can move up and down along the support column 4. A first connecting rod 6 is horizontally installed at the upper end of the support column 4. A second connecting rod 7 is horizontally symmetrically installed on both sides of the middle of the test cylinder 3. The second connecting rod 7 and the corresponding first connecting rod 6 are located on the same horizontal line and are detachably connected. A measuring column 8 for measuring the height of concrete is vertically installed on the test plate 2. A measuring ruler 9 for measuring the radius of concrete is horizontally installed on the measuring column 8. The measuring ruler 9 is sleeved on the outside of the measuring column 8 through a ring and can slide up and down and rotate horizontally along the measuring column 8. The measuring column 8 is fixed to the measuring column 8 by detachable bolts.

[0027] In one embodiment, the lifting mechanism 5 includes multiple pneumatic rods 501, a mounting frame 502, a connecting plate 503, and a pressure rod 504. Multiple pneumatic rods 501 are disposed on the outer casing 1 below the test plate 2. The mounting frame 502 is disposed at the bottom of the test plate 2. The telescopic ends of the multiple pneumatic rods 501 all penetrate and extend into the inner side of the mounting frame 502. The mounting frame 502 is fixedly connected to the telescopic columns of the multiple pneumatic rods 501. The inner side of the mounting frame 502 is horizontal. A connecting plate 503 is provided, which is fixedly connected to the air release guide rods of multiple air pressure rods 501. A pressure rod 504 is horizontally hinged to the upper inner side of the mounting frame 502. The inner end of the pressure rod 504 is located on the connecting plate 503, and the outer end extends outward through a rectangular hole on the side wall of the mounting frame 502. By lifting the outer end of the pressure rod 504, the inner end can be driven to rotate downward and press the connecting plate 503, so that the connecting plate 503 presses down the air release guide rods and the air pressure rods 501.

[0028] In one embodiment, the first link 6 and the second link 7 are fixedly connected by a fixing pin.

[0029] In one embodiment, a rectangular hole is provided on the front side wall of the housing 1, and the outer end of the pressure rod 504 extends through the rectangular hole to the outside of the housing 1.

[0030] In one embodiment, the front sidewall of the outer casing 1 is provided with a placement groove 10, and a striking rod 11 is placed inside the placement groove 10.

[0031] In one embodiment, the test plate 2 is provided with a horizontal bubble 12 and a vertical bubble 13 for detecting whether the test plate 2 is horizontal.

[0032] In this invention, there are three pneumatic rods 501.

[0033] The working process of this utility model is as follows:

[0034] Place the test device on a flat surface and observe the horizontal bubble 12 and the vertical bubble 13 on the test plate 2 to ensure that the test plate 2 is in a horizontal state. Adjust the position of the device if necessary.

[0035] The second connecting rod 7 on the test cylinder 3 is fixedly connected to the first connecting rod 6 on the support column 4 by a fixing pin, so as to ensure that the test cylinder 3 is vertically and stably set at the center of the test plate 2.

[0036] Fill the test cylinder 3 with the fair-faced concrete to be tested. During the filling process, use a tapping rod 11 to tap the outer wall of the test cylinder 3 to ensure that the concrete is filled evenly.

[0037] Lift the pressure rod 504, and the pressure rod 504 rotates downward to press the connecting plate 503. The connecting plate 503 presses downward to the air release guide rod of the air pressure rod 501, so that the three air pressure rods 501 are uniformly contracted downward by the weight of the fair-faced concrete. The air pressure rods 501 drive the test plate 2 to descend uniformly through the mounting frame 502. The fair-faced concrete gradually detaches from the test cylinder 3 under the influence of gravity. When the reverse thrust of the air pressure rods 501 is balanced with the gravity of the fair-faced concrete, the test plate 2 stops descending.

[0038] Wait for the fair-faced concrete to flow naturally, and at the same time remove the fixing pin to disconnect the first and second connecting rods. Remove the test cylinder 3, and wait for the fair-faced concrete on the test plate 2 to stop flowing. Then, use the measuring column 8 and measuring ruler 9 on the test plate 2 to make measurements.

[0039] The measuring column 8 is used to measure the height of the concrete after it collapses. By reading the corresponding scale on the measuring ruler 9 on the measuring column 8, the height of the highest point of the concrete after it collapses can be obtained. The measuring ruler 9 is also used to measure the radius or diameter of the concrete after it collapses multiple times.

[0040] After the test is completed, clean the residual concrete on the test cylinder 3 and test plate 2 to ensure that the device is clean and tidy.

[0041] Lift the lever 504 again to raise the test plate 2 back to its initial position, ready for the next test.

[0042] When it is necessary to test the expansion, test cylinder 3 can be placed upside down and then the test can be carried out according to the slump test procedure.

[0043] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A device for testing the slump of fair-faced concrete, characterized in that, The device includes a housing (1), a test plate (2), a test cylinder (3), a support column (4), and a lifting mechanism (5). The housing (1) is hollow and open at the top. The lifting mechanism (5) is installed inside the housing (1). The test plate (2) is horizontally installed at the top opening. The test cylinder (3) is detachably installed at the center of the test plate (2). The support column (4) is vertically installed on the inner side of the bottom surface of the housing (1), penetrating and extending above the test plate (2). The test plate (2) can move up and down along the support column (4). A first connecting rod (6) is horizontally installed at the upper end of the support column (4). The test cylinder (3) is symmetrically arranged with second connecting rods (7) on both sides of the middle. The second connecting rods (7) and the corresponding first connecting rods (6) are located on the same horizontal line and are detachably connected. The test plate (2) is vertically arranged with a measuring column (8) for measuring the height of concrete. The measuring column (8) is horizontally arranged with a measuring ruler (9) for measuring the radius of concrete. The measuring ruler (9) is sleeved on the outside of the measuring column (8) through a ring sleeve and can slide up and down and rotate horizontally along the measuring column (8). The measuring column (8) is fixed to the measuring column (8) by detachable bolts.

2. The slump testing device for fair-faced concrete according to claim 1, characterized in that, The lifting mechanism (5) includes multiple pneumatic rods (501), a mounting frame (502), a connecting plate (503), and a pressure rod (504). Multiple pneumatic rods (501) are arranged on the outer shell (1) below the test plate (2). The mounting frame (502) is arranged at the bottom of the test plate (2). The telescopic ends of the multiple pneumatic rods (501) all penetrate and extend to the inside of the mounting frame (502). The mounting frame (502) is fixedly connected to the telescopic columns of the multiple pneumatic rods (501). The inside of the mounting frame (502) is horizontally arranged. A connecting plate (503) is provided, which is fixedly connected to the air release guide rods of multiple air pressure rods (501). A pressure rod (504) is horizontally hinged to the upper inner side of the mounting frame (502). The inner end of the pressure rod (504) is located on the connecting plate (503), and the outer end extends outward through a rectangular hole on the side wall of the mounting frame (502). By lifting the outer end of the pressure rod (504), the inner end can be driven to rotate downward and press the connecting plate (503), so that the connecting plate (503) presses down the air release guide rods and the air pressure rods (501) descend.

3. The slump testing device for fair-faced concrete according to claim 1, characterized in that, The first link (6) and the second link (7) are fixedly connected by a fixing pin.

4. The slump testing device for fair-faced concrete according to claim 2, characterized in that, The front side wall of the outer casing (1) has a rectangular hole, and the outer end of the pressure rod (504) extends through the rectangular hole to the outside of the outer casing (1).

5. The slump testing device for fair-faced concrete according to claim 4, characterized in that, The front side wall of the outer shell (1) is provided with a placement groove (10), and a striking rod (11) is placed inside the placement groove (10).

6. The slump testing device for fair-faced concrete according to claim 1, characterized in that, The test plate (2) is provided with a horizontal bubble (12) and a vertical bubble (13) for detecting whether the test plate (2) is horizontal.

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