Concrete fracture resistance testing machine

Abstract

The utility model discloses a concrete anti-bending testing machine, and relates to the technical field of concrete anti-bending tests, the concrete anti-bending testing machine comprises an operation table, a loading table is arranged on an operation frame, two lower loading rods are arranged on the loading table, and two box bodies are symmetrically and fixedly mounted on the outer wall of one side of the operation table; wherein a lifting mechanism used for concrete feeding is arranged in one box body, the lifting mechanism comprises a placing plate and a screw rod, the two ends of the screw rod are rotationally installed on the inner walls of the two sides of the box body respectively, and the placing plate is connected to the screw rod in a threaded mode. According to the device, under the matching action of the placing plate and the like, a concrete sample is placed on the placing plate, then the motor is controlled to be started, the output end of the motor can drive the screw rod to rotate, the placing plate is driven to drive the concrete sample to move upwards and move to the horizontal plane flush with the lower loading rod, and manual carrying is not needed.

Description

Technical Field

[0001] The present application relates to the technical field of concrete flexural testing, and in particular to a concrete flexural testing machine. Background Art

[0002] In the fields of construction and municipal engineering, concrete is one of the most commonly used materials. Compressive strength, tensile strength and deformation are its important material properties. Especially in municipal engineering, the tensile strength of concrete is an important indicator for the quality control of concrete structures. In actual work, the direct tensile loading mode of concrete is not easy to achieve. Usually, flexural tests and splitting tensile tests are used as alternative methods to evaluate the tensile properties of concrete. At present, concrete flexural tests are mostly carried out on concrete flexural testing machines.

[0003] After searching, the Chinese patent authorization announcement number CN219694718U discloses a concrete electric anti-analysis testing machine, including an operating table, the top of the operating table is fixedly connected to a loading table, one side of the loading table is fixedly connected to a cylinder, and the output end of the cylinder is fixedly connected to a push rod.

[0004] The electric concrete anti-analysis testing machine in the above patent has the following shortcomings: although the device improves the problem of the flexural testing machine being difficult to clean, due to the cleaning structure set in the device, it is more difficult to place the concrete sample in the device. Although the device is improved on the basis of CN204556405U, after the structural change, the convenient sample placement method of CN204556405U is no longer applicable to the device. Therefore, the problem of difficulty in placing the sample still exists in the device, and it is necessary to manually lift the concrete onto the loading platform, which is more laborious. Utility Model Content

[0005] The purpose of the utility model is to solve or at least alleviate the problem that the convenient method of placing samples in the prior art is no longer applicable to the device, so the problem of difficulty in placing samples still exists on the device, and it is necessary to manually lift the concrete onto the loading platform, which is quite laborious.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete flexural testing machine, comprising an operating table, a loading table is provided on the operating frame, two lower loading rods are provided on the loading table, two boxes are symmetrically fixedly installed on the outer wall of one side of the operating table, and a lifting mechanism for concrete loading is provided in one of the boxes;

[0007] The lifting mechanism includes a placement plate and a screw rod, the two ends of the screw rod are rotatably mounted on the inner walls of both sides of the box body, the placement plate is screwed on the screw rod, a support frame is fixedly mounted on the top outer wall of the box body, a motor is fixedly mounted on the support frame, and the output end of the motor passes through the top outer wall of the box body and is fixedly connected to the top end of the screw rod.

[0008] By adopting the above technical solution, the output end of the motor drives the screw to rotate by controlling the starting motor, and drives the placement plate to move the concrete sample upward and to a horizontal plane flush with the lower loading rod.

[0009] Optionally, a limiting hole is provided on the top outer wall of the placement plate, a limiting rod is slidably installed in the limiting hole, and two ends of the limiting rod are respectively fixedly installed on the inner walls of both sides of another box body.

[0010] By adopting the above technical solution, the placement plate can be limited by providing the limiting holes and the limiting rods.

[0011] Optionally, two baffles are symmetrically fixedly mounted on the top outer wall of the placement plate.

[0012] By adopting the above technical solution, the baffle can be provided to protect the concrete sample and prevent the concrete sample from falling.

[0013] Optionally, a second mounting frame is fixedly mounted on the bottom outer wall of the placement plate, and a third cylinder is fixedly mounted on the second mounting frame.

[0014] By adopting the above technical solution, the third cylinder can be installed on the second mounting frame by providing the second mounting frame.

[0015] Optionally, the same connecting plate is slidably installed on the outer walls of one side of the two boxes, the connecting plate is fixedly installed on the output end of the third cylinder, a first mounting frame is fixedly installed on the outer wall of one side of the connecting plate, the second cylinder is fixedly installed on the first mounting frame, and a push plate is fixedly installed on the output end of the second cylinder.

[0016] By adopting the above technical solution, by starting the second cylinder, the output end of the second cylinder will push the push plate to move, and place the concrete sample on the lower loading rod to complete the placement without manual placement, which is simple and convenient.

[0017] Optionally, one side outer wall of the two boxes is provided with a long groove, and a long block is fixedly installed in the two long grooves, and the two long blocks are fixedly installed on one side outer wall of the same connecting plate.

[0018] By adopting the above technical solution, the long groove is provided so that the long block can be slidably installed therein, thereby assisting in limiting the connection plate.

[0019] Optionally, outer walls of the two boxes on one side close to each other are both hollow.

[0020] By adopting the above technical solution, the outer walls of the two boxes on one side close to each other are both hollowed out, so that the box is easy to use.

[0021] Optionally, a support plate is fixedly installed on one side outer wall of the operating table, a first cylinder is fixedly installed on the support plate, and the output end of the first cylinder passes through the top outer wall of the support plate and is fixedly installed with a pressure plate, and two loading rods are symmetrically fixed on the bottom outer wall of the pressure plate.

[0022] By adopting the above technical solution, the first cylinder is started by controlling, and the output end of the first cylinder drives the pressing plate and the two loading rods to move downward, and press the concrete sample. At this time, the test data can be viewed through the operating table.

[0023] In summary, the beneficial effects of this application are as follows:

[0024] 1. The new type of the present application adopts the cooperation of a placing plate, etc., by placing the concrete sample on the placing plate, and then controlling the starting motor, the output end of the motor will drive the screw to rotate, and drive the placing plate to move the concrete sample upward, and move it to a horizontal plane flush with the lower loading rod, without manual handling.

[0025] 2. The new model of the present application adopts the cooperation of a push plate, etc., and by starting the second cylinder, the output end of the second cylinder will push the push plate to move, and place the concrete sample on the lower loading rod to complete the placement, without manual placement, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the entire application;

[0027] Figure 2 It is a schematic diagram of the placement board of this application;

[0028] Figure 3 It is a schematic diagram of the push plate of this application.

[0029] Explanation of the accompanying drawings: In the figure: 1, operating table; 2, loading table; 3, lower loading rod; 4, support plate; 5, first cylinder; 6, pressure plate; 7, loading rod; 8, placement plate; 9, box body; 10, long groove; 11, long block; 12, baffle; 13, screw; 14, support frame; 15, motor; 16, limit hole; 17, limit rod; 18, first mounting frame; 19, second cylinder; 20, push plate; 21, connecting plate; 22, second mounting frame; 23, third cylinder. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] See also Figure 1-3 A concrete flexural testing machine includes an operating table 1, a loading table 2 is provided on the operating table 1, and two lower loading rods 3 are provided on the loading table 2. By setting the lower loading rods 3, a concrete sample can be placed on it, which is convenient for testing. This test method is a prior art, so the specific test process is not elaborated in detail. Two boxes 9 are symmetrically fixedly installed on the outer wall of one side of the operating table 1, and a lifting mechanism for concrete loading is provided in one of the boxes 9; the lifting mechanism is provided to facilitate the lifting of the concrete sample.

[0032] Among them, the lifting mechanism includes a placement plate 8 and a screw 13, both ends of the screw 13 are rotatably installed on the inner walls of both sides of the box body 9, the placement plate 8 is screwed on the screw 13, and the screw 13 is set so that the placement plate 8 can be driven to move upward. A support frame 14 is fixedly installed on the top outer wall of the box body 9, and a motor 15 is fixedly installed on the support frame 14. By setting the support frame 14, the motor 15 can be installed on it, and the output end of the motor 15 passes through the top outer wall of the box body 9 and is fixedly connected to the top end of the screw 13.

[0033] When in use, by controlling the starting motor 15 , the output end of the motor 15 will drive the screw 13 to rotate, and drive the placement plate 8 to move upward with the concrete sample, and move to a horizontal plane flush with the lower loading rod 3 .

[0034] Reference Figure 2 The top outer wall of the placement plate 8 is provided with a limit hole 16, a limit rod 17 is slidably installed in the limit hole 16, and the two ends of the limit rod 17 are respectively fixedly installed on the inner walls of both sides of another box body 9. By setting the limit hole 16 and the limit rod 17, the placement plate 8 can be limited.

[0035] Reference Figure 2 Two baffles 12 are symmetrically fixedly installed on the top outer wall of the placement plate 8. By setting the baffles 12, the concrete sample can be protected to avoid the phenomenon of the concrete sample falling.

[0036] Reference Figure 2 and Figure 3 The bottom outer wall of the placing plate 8 is fixedly provided with a second mounting frame 22, and a third cylinder 23 is fixedly provided on the second mounting frame 22. By providing the second mounting frame 22, the third cylinder 23 can be installed on it.

[0037] Reference Figure 2 and Figure 3 The same connecting plate 21 is slidably mounted on the outer wall of one side of the two boxes 9, the connecting plate 21 is fixedly mounted on the output end of the third cylinder 23, the first mounting frame 18 is fixedly mounted on the outer wall of one side of the connecting plate 21, the second cylinder 19 is fixedly mounted on the first mounting frame 18, and the push plate 20 is fixedly mounted on the output end of the second cylinder 19. By starting the second cylinder 19, the output end of the second cylinder 19 will push the push plate 20 to move, and the concrete sample is placed on the lower loading rod 3, and the placement is completed without manual placement, which is simple and convenient.

[0038] Reference Figure 1 and Figure 2 The outer walls of one side of the two boxes 9 are provided with long grooves 10, and long blocks 11 are fixedly installed in the two long grooves 10. The two long blocks 11 are fixedly installed on the outer wall of one side of the same connecting plate 21. By providing the long grooves 10, the long blocks 11 can be slidably installed therein, and then the connecting plate 21 can be auxiliary limited.

[0039] Reference Figure 1 The outer walls of the two boxes 9 on one side close to each other are all hollowed out. By setting the outer walls of the two boxes 9 on one side close to each other to be hollowed out, it is convenient to use.

[0040] Reference Figure 1 A support plate 4 is fixedly installed on one side outer wall of the operating table 1, a first cylinder 5 is fixedly installed on the support plate 4, and the output end of the first cylinder 5 penetrates the top outer wall of the support plate 4 and is fixedly installed with a pressing plate 6, and two loading rods 7 are symmetrically fixed on the bottom outer wall of the pressing plate 6. By controlling and starting the first cylinder 5, the output end of the first cylinder 5 will drive the pressing plate 6 and the two loading rods 7 to move downward, and press the concrete sample, and at this time, the test data can be viewed through the operating table 1.

[0041] The implementation principle of the present application is as follows: when in use, the concrete sample is placed on the placement plate 8, and then the motor 15 is started by control, the output end of the motor 15 will drive the screw 13 to rotate, and drive the placement plate 8 to move upward with the concrete sample, and move to a horizontal plane flush with the lower loading rod 3, then the third cylinder 23 is started, the output end of the third cylinder 23 will drive the connecting plate 21 and the push plate 20 to move upward, and move to the middle position of the concrete sample, then the second cylinder 19 is started, the output end of the second cylinder 19 will push the push plate 20 to move, and the concrete sample is placed on the lower loading rod 3, and the placement is completed, no manual placement is required, and it is simple and convenient;

[0042] By controlling and starting the first cylinder 5 , the output end of the first cylinder 5 will drive the pressing plate 6 and the two loading rods 7 to move downward, and press the concrete sample. At this time, the test data can be viewed through the operating table 1 .

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete flexural testing machine, comprising an operating table (1), wherein the operating table (1) is provided with a loading table (2), wherein the loading table (2) is provided with two lower loading rods (3), characterized in that: Two boxes (9) are symmetrically and fixedly mounted on an outer wall of one side of the operating table (1), wherein a lifting mechanism for concrete loading is provided in one of the boxes (9); The lifting mechanism comprises a placement plate (8) and a screw rod (13), the two ends of the screw rod (13) being rotatably mounted on the inner walls of both sides of the box body (9), the placement plate (8) being screwed on the screw rod (13), a support frame (14) being fixedly mounted on the top outer wall of the box body (9), a motor (15) being fixedly mounted on the support frame (14), an output end of the motor (15) penetrating the top outer wall of the box body (9) and being fixedly connected to the top end of the screw rod (13).

2. A concrete flexural testing machine according to claim 1, characterized in that: A limiting hole (16) is provided on the top outer wall of the placement plate (8), a limiting rod (17) is slidably installed in the limiting hole (16), and two ends of the limiting rod (17) are respectively fixedly installed on the inner walls of two sides of another box body (9).

3. A concrete flexural testing machine according to claim 1, characterized in that: Two baffles (12) are symmetrically and fixedly mounted on the top outer wall of the placement plate (8).

4. A concrete flexural testing machine according to claim 3, characterized in that: A second mounting frame (22) is fixedly mounted on the bottom outer wall of the placement plate (8), and a third cylinder (23) is fixedly mounted on the second mounting frame (22).

5. A concrete flexural testing machine according to claim 4, characterized in that: The same connecting plate (21) is slidably mounted on one side outer wall of the two boxes (9); the connecting plate (21) is fixedly mounted on the output end of the third cylinder (23); a first mounting frame (18) is fixedly mounted on one side outer wall of the connecting plate (21); a second cylinder (19) is fixedly mounted on the first mounting frame (18); and a push plate (20) is fixedly mounted on the output end of the second cylinder (19).

6. A concrete flexural testing machine according to claim 5, characterized in that: One side outer wall of the two boxes (9) is provided with a long groove (10), and a long block (11) is fixedly installed in each of the two long grooves (10). The two long blocks (11) are fixedly installed on one side outer wall of the same connecting plate (21).

7. A concrete flexural testing machine according to claim 6, characterized in that: The outer walls of the two boxes (9) on the sides close to each other are both hollow.

8. A concrete flexural testing machine according to claim 1, characterized in that: A support plate (4) is fixedly mounted on one side outer wall of the operating table (1), a first cylinder (5) is fixedly mounted on the support plate (4), and an output end of the first cylinder (5) passes through the top outer wall of the support plate (4) and is fixedly mounted with a pressure plate (6), and two loading rods (7) are symmetrically fixedly mounted on the bottom outer wall of the pressure plate (6).

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