Anti-crack concrete shock resistance experiment device

Abstract

The utility model discloses an anti-crack concrete anti-impact experiment device which comprises a bottom frame, a rotating assembly is fixedly connected to the surface of one side of the bottom frame, an impact assembly is fixedly connected to the surface of one side of the rotating assembly, the rotating assembly comprises two positioning frames, and the two positioning frames are fixedly connected to the surface of the other side of the rotating assembly. And rotating holes are formed in the surface of one side of the positioning frame, and the two rotating holes are symmetrically distributed. By controlling the working state of the first motor, an adjusting bevel gear fixedly connected with the output end of the first motor is driven to rotate, the adjusting bevel gear drives a rotating bevel gear and a rotating rod to rotate at an angle, and meanwhile a containing plate and an anti-crack concrete block placed at the upper end of the containing plate synchronously rotate along with the rotating rod; the performance of the anti-crack concrete under the complex stress condition can be evaluated through a multi-angle impact test on the whole, and the safety of the structure can be enhanced, especially in application scenes needing to bear multi-direction impact.

Description

Technical Field

[0001] The utility model relates to the technical field of crack-resistant concrete detection, and specifically relates to an impact experiment device for crack-resistant concrete. Background Technique

[0002] As a material widely used in buildings, although concrete has good mechanical properties and durability under normal circumstances, its impact resistance may be severely affected in harsh environments such as earthquakes and explosions. Therefore, through impact experiment tests, the mechanical property performance of crack-resistant concrete in special environments can be evaluated. The main purpose of impact experiment tests is to evaluate the mechanical property performance of materials, products or structures under the action of external forces such as impacts, vibrations or oscillations from the outside world. For crack-resistant concrete, important parameters such as its failure performance, durability performance, and reliability performance can be understood through tests, so as to ensure the structural integrity and safety of buildings when they are impacted.

[0003] However, buildings and structures may be subjected to impacts from different directions during actual use. The existing concrete impact experiment devices can only conduct frontal impact tests on concrete and cannot achieve impact tests at other angles. If the crack-resistant concrete is evaluated only through single-angle impact tests, performance deficiencies may occur in actual applications. At the same time, this will also make it lack a strong basis for comparison and reference when evaluating the performance advantages and disadvantages of crack-resistant concrete. Content of the Utility Model

[0004] The purpose of the utility model is to provide an impact experiment device for crack-resistant concrete to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An impact experiment device for crack-resistant concrete, including a chassis, one side surface of the chassis is fixedly connected with a rotating assembly, and one side surface of the rotating assembly is fixedly connected with an impact assembly;

[0007] The rotating assembly includes positioning frames, there are two positioning frames, one side surface of the positioning frame is provided with rotating holes, there are two rotating holes and they are symmetrically distributed, one side surface of the positioning frame is fixedly connected with a rotating bearing, and one side surface of the rotating bearing is fixedly connected with a rotating rod.

[0008] Further, one side surface of the rotating rod is fixedly connected with a placement plate, one side surface of the placement plate is fixedly connected with limiting blocks, there are four limiting blocks, the four limiting blocks are arranged in pairs opposite to each other, the four limiting blocks are movably buckled inside the rotating holes, and one side surface of the placement plate is fixedly connected with clamping plates.

[0009] Further, a rotating bevel gear is fixedly connected to one side surface of the rotating rod. An adjusting bevel gear is snap-connected to one side surface of the rotating bevel gear. The rotating bevel gear and the adjusting bevel gear are meshed with each other. A first motor is fixedly connected to one side surface inside the positioning frame. The output end of the first motor is fixedly connected to the adjusting bevel gear.

[0010] Further, the impact assembly includes impact brackets. There are two impact brackets and they are symmetrically distributed. A fixed plate is fixedly connected to one side surface of one of the impact brackets. Rotating bearings are fixedly connected to one side surface of the two impact brackets. A retractable rod is fixedly connected between the two rotating bearings fixedly connected to one side surface of the two impact brackets.

[0011] Further, card slots are formed in one side surface of the retractable rod. There are two card slots and they are symmetrically distributed. A counterweight block is fixedly connected to one side surface of the retractable rod. The counterweight block is arranged at the center of the retractable rod. Connecting lines are fixedly connected to one side surface of the retractable rod. There are two connecting lines and they are symmetrically distributed. Impact balls are fixedly connected to one side surface of the connecting lines.

[0012] Further, an electric telescopic rod is fixedly connected to one side surface of the fixed plate. A sliding plate is fixedly connected to one side surface of the electric telescopic rod. One side surface of the sliding plate is movably connected to one side surface of the fixed plate. A second motor is fixedly connected to one side surface of the sliding plate. A snap block is fixedly connected to the output end of the second motor. A slot cylinder is arranged on one side surface of the retractable rod. The slot cylinder is adapted to the snap block.

[0013] Further, a rubber shock-absorbing layer is fixedly connected to one side surface of the chassis. A bearing plate is fixedly connected to one side surface of the rubber shock-absorbing layer. Shock-absorbing springs are fixedly connected to one side surface of the bearing plate. There are three shock-absorbing springs and they are evenly distributed in a linear array. A placing bottom block is fixedly connected to one side surface of the shock-absorbing springs.

[0014] Compared with the prior art, the utility model provides an anti-cracking concrete impact resistance experimental device, which has the following beneficial effects:

[0015] 1. By controlling the working state of the first motor, the present utility model drives the adjusting bevel gear fixedly connected to the output end of the first motor to rotate. The adjusting bevel gear drives the rotating bevel gear and the rotating rod to rotate at an angle. At the same time, the placing plate and the anti-cracking concrete block placed on the upper end of the placing plate rotate synchronously with the rotating rod. Through multi-angle impact testing as a whole, the performance of the anti-cracking concrete under complex stress conditions can be evaluated, which helps to enhance the safety of the structure, especially in application scenarios that need to withstand impacts from multiple directions;

[0016] 2. By controlling the working state of the electric telescopic rod, the connection state between the card slot cylinder and the buckle block is controlled. Disconnecting the two is conducive to realizing the impact test of the impact ball on the concrete block, and the two being buckled and connected is conducive to using the second motor to wind up the impact ball and the connecting wire and wind them into the card wire groove of the winding and unwinding rod. As a whole, it reduces the consumption of manpower, enables personnel to complete the preparation work before the experiment more labor-saving, and the overall structure of the equipment is simple and not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the front view perspective of the present utility model;

[0018] Figure 2 is a three-dimensional structure internal schematic diagram of the right view perspective of the present utility model;

[0019] Figure 3 is a three-dimensional structure schematic diagram of the top view perspective of the present utility model;

[0020] Figure 4 is a three-dimensional structure enlarged schematic diagram of some components of the present utility model;

[0021] Figure 5 is a three-dimensional structure internal schematic diagram of the left view perspective of the present utility model;

[0022] Figure 6 is a three-dimensional structure internal schematic diagram of the front view perspective of the present utility model.

[0023] In the figure: 1, chassis; 2, rotating assembly; 3, impact assembly; 4, positioning frame; 5, rotating hole; 6, rotating bearing; 7, rotating rod; 8, placing plate; 9, limiting block; 10, rotating bevel gear; 11, adjusting bevel gear; 12, first motor; 13, clamping plate; 14, impact bracket; 15, fixing plate; 16, winding and unwinding rod; 17, card wire groove; 18, counterweight; 19, connecting wire; 20, impact ball; 21, card slot cylinder; 22, buckle block; 23, electric telescopic rod; 24, sliding plate; 25, second motor; 26, rubber shock-absorbing layer; 27, bearing plate; 28, shock-absorbing spring; 29, placing bottom block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] Embodiment 1

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , the present utility model provides a technical solution: an anti-cracking concrete impact resistance test device, including a chassis 1, a rotating assembly 2 is fixedly connected to one side surface of the chassis 1, and an impact assembly 3 is fixedly connected to one side surface of the rotating assembly 2;

[0028] The rotating assembly 2 includes a positioning frame 4. There are two positioning frames 4. Rotating holes 5 are provided on one side surface of the positioning frame 4. There are two rotating holes 5 and they are symmetrically distributed. A rotating bearing 6 is fixedly connected to one side surface of the positioning frame 4, and a rotating rod 7 is fixedly connected to one side surface of the rotating bearing 6.

[0029] A placement plate 8 is fixedly connected to one side surface of the rotating rod 7. A limiting block 9 is fixedly connected to one side surface of the placement plate 8. There are four limiting blocks 9. The four limiting blocks 9 are arranged in pairs opposite to each other. The four limiting blocks 9 are movably buckled inside the rotating hole 5. A clamping plate 13 is fixedly connected to one side surface of the placement plate 8. The limiting block 9 rotates inside the rotating hole 5 following the rotation of the placement plate 8. While rotating, the limiting block 9 plays a role of limiting and fixing, preventing the occurrence of dislocation, slipping or damage due to excessive impact.

[0030] One side surface of the rotating rod 7 is fixedly connected with a rotating bevel gear 10. One side surface of the rotating bevel gear 10 is snap-connected with an adjusting bevel gear 11. The rotating bevel gear 10 and the adjusting bevel gear 11 are meshed with each other. One side surface inside the positioning frame 4 is fixedly connected with a first motor 12. The output end of the first motor 12 is fixedly connected with the adjusting bevel gear 11. When the first motor 12 works, it drives the adjusting bevel gear 11 to rotate, and at the same time drives the rotating bevel gear 10 to rotate synchronously. The rotating bevel gear 10 drives the rotating rod 7 and the placing plate 8 to be inclined at a certain angle.

[0031] The impact assembly 3 includes impact brackets 14. There are two impact brackets 14 and they are symmetrically distributed. One side surface of one of the impact brackets 14 is fixedly connected with a fixing plate 15. One side surface of the two impact brackets 14 is fixedly connected with a rotating bearing 6. A winding rod 16 is fixedly connected between the two rotating bearings 6 fixedly connected to one side surface of the two impact brackets 14. The impact brackets 14 are used to fix the components at the upper end.

[0032] One side surface of the winding rod 16 is provided with card wire grooves 17. There are two card wire grooves 17 and they are symmetrically distributed. One side surface of the winding rod 16 is fixedly connected with a counterweight 18. The counterweight 18 is arranged at the center of the winding rod 16. One side surface of the winding rod 16 is fixedly connected with connecting wires 19. There are two connecting wires 19 and they are symmetrically distributed. One side surface of the connecting wire 19 is fixedly connected with impact balls 20. The winding rod 16 is used to facilitate the winding and unwinding of the connecting wire 19 and the overall impact test on the crack-resistant concrete block. When the winding rod 16 winds the connecting wire 19 upwards, the card wire grooves 17 are used to facilitate the winding of the connecting wire 19. The counterweight 18 is used to facilitate the winding rod 16 to always maintain a positive placement in a movable state.

[0033] Embodiment 2

[0034] Based on the above Embodiment 1, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6, on one side surface of the fixed plate 15, an electric telescopic rod 23 is fixedly connected. On one side surface of the electric telescopic rod 23, a sliding plate 24 is fixedly connected. One side surface of the sliding plate 24 is movably connected to one side surface of the fixed plate 15. On one side surface of the sliding plate 24, a second motor 25 is fixedly connected. The output end of the second motor 25 is fixedly connected with a snap block 22. On one side surface of the retractable rod 16, a clamping groove cylinder 21 is provided. The clamping groove cylinder 21 is adapted to the snap block 22. The electric telescopic rod 23 controls the specific position of the sliding plate 24 and the second motor 25 above the sliding plate 24. When the electric telescopic rod 23 drives the second motor 25 to contract, the snap block 22 at the output end of the second motor 25 snaps into the inside of the clamping groove cylinder 21. When the second motor 25 starts, it drives the retractable rod 16 to rotate and wind up. When the electric telescopic rod 23 drives the second motor 25 to move outwards, the snap block 22 at the output end of the second motor 25 is pulled out from the inside of the clamping groove cylinder 21. At this time, the retractable rod 16 rotates under the influence of the impact ball 20.

[0035] On one side surface of the chassis 1, a rubber shock-absorbing layer 26 is fixedly connected. On one side surface of the rubber shock-absorbing layer 26, a bearing plate 27 is fixedly connected. The bearing plate 27 is semi-surrounding and wraps the rubber shock-absorbing layer 26. On one side surface of the bearing plate 27, shock-absorbing springs 28 are fixedly connected. There are three shock-absorbing springs 28 and they are evenly distributed in a linear array. The shock-absorbing springs 28 are used to play a role in shock absorption and protection during the impact test, preventing the impact from damaging the overall equipment. On one side surface of the shock-absorbing springs 28, a placement bottom block 29 is fixedly connected. The placement bottom block 29 is used for placing the specific position of this test device.

[0036] Working principle: Please refer to Figures 1-6As shown, before the utility model is used, the whole device is first connected to an external controller. The anti-cracking concrete slab to be experimentally tested is placed on the placement plate 8. At the same time, the external controller is used to control the clamping plate 13 to clamp the anti-cracking concrete slab placed at the upper end of the placement plate 13 inwardly and centrally. Then, according to different test angles required for the experimental test, the working state of the first motor 12 is controlled to drive the adjusting bevel gear 11 fixedly connected to the output end of the first motor 12 to rotate. The adjusting bevel gear 11 drives the rotating bevel gear 10 and the rotating rod 7 to rotate at an angle. At the same time, the placement plate 8 and the anti-cracking concrete block placed on the upper end of the placement plate 8 rotate synchronously with the rotating rod 7. After adjusting the angle required for the experiment, by controlling the working state of the electric telescopic rod 23, the connection state between the card slot cylinder 21 and the buckle block 22 is controlled, and the connection between the two is disconnected, so that the impact ball 20 falls downward due to its own gravity to perform an impact test on the concrete block. At the same time, the connecting line 19 disengages from the inside of the card wire groove 17, and the winding and unwinding rod 16 also rotates during the downward fall of the impact ball 20. After the impact test, the winding and unwinding rod 16 relies on the impact ball 20 and the counterweight 18 fixedly connected to the lower end of the winding and unwinding rod 16 to always maintain a positive placement in a movable state. At this time, the remote controller controls the electric telescopic rod 23 to retract backward, so that the buckle block 22 at the output end of the second motor 25 is buckled into the inside of the card slot cylinder 21, and the second motor 25 is used to drive the winding and unwinding rod 16 to rotate in the reverse direction, and the connecting line 19 rotates and is buckled into the inside of the card wire groove 17 again, and at the same time drives the impact ball 20 to rise to the original position, which reduces the consumption of manpower in the overall impact experiment, enables personnel to complete the preparatory work before the experiment more labor-saving, and the overall structure of the equipment is simple and not prone to failure. The whole also conducts multi-angle impact tests, which can evaluate the performance of anti-cracking concrete under complex stress conditions, helps to enhance the safety of the structure, especially in application scenarios that need to withstand multi-directional impacts, and improves the overall practicality.

Claims

1. An anti-cracking concrete impact resistance test device, comprising a chassis (1), characterized in that: One side surface of the chassis (1) is fixedly connected with a rotating component (2), and one side surface of the rotating component (2) is fixedly connected with an impact component (3). The rotating component (2) includes positioning frames (4), there are two positioning frames (4), a rotating hole (5) is formed on one side surface of the positioning frame (4), there are two rotating holes (5) and they are symmetrically distributed, a rotating bearing (6) is fixedly connected to one side surface of the positioning frame (4), and a rotating rod (7) is fixedly connected to one side surface of the rotating bearing (6).

2. The anti-cracking concrete impact resistance test device according to claim 1, wherein: A placing plate (8) is fixedly connected to one side surface of the rotating rod (7), a limiting block (9) is fixedly connected to one side surface of the placing plate (8), there are four limiting blocks (9), the four limiting blocks (9) are arranged in pairs opposite to each other, the four limiting blocks (9) are movably buckled inside the rotating hole (5), and a clamping plate (13) is fixedly connected to one side surface of the placing plate (8).

3. An anti-cracking concrete impact resistance test device according to claim 2, characterized in that: A rotating bevel gear (10) is fixedly connected to one side surface of the rotating rod (7), an adjusting bevel gear (11) is buckled to one side surface of the rotating bevel gear (10), the rotating bevel gear (10) and the adjusting bevel gear (11) are meshed with each other, and a first motor (12) is fixedly connected to one side surface inside the positioning frame (4), and the output end of the first motor (12) is fixedly connected to the adjusting bevel gear (11).

4. An anti-cracking concrete impact resistance test device according to claim 1, characterized in that: The impact component (3) includes impact brackets (14), there are two impact brackets (14) and they are symmetrically distributed, a fixing plate (15) is fixedly connected to one side surface of one of the impact brackets (14), rotating bearings (6) are fixedly connected to one side surfaces of the two impact brackets (14), and a retractable rod (16) is fixedly connected between the two rotating bearings (6) fixedly connected to one side surfaces of the two impact brackets (14).

5. An anti-cracking concrete impact resistance test device according to claim 4, characterized in that: A wire clamping groove (17) is formed on one side surface of the retractable rod (16), there are two wire clamping grooves (17) and they are symmetrically distributed, a counterweight block (18) is fixedly connected to one side surface of the retractable rod (16), the counterweight block (18) is arranged at the middle position of the retractable rod (16), two connecting wires (19) are fixedly connected to one side surface of the retractable rod (16) and they are symmetrically distributed, and an impact ball (20) is fixedly connected to one side surface of the connecting wire (19).

6. An anti-cracking concrete impact resistance test device according to claim 4, characterized in that: An electric telescopic rod (23) is fixedly connected to one side surface of the fixing plate (15), a sliding plate (24) is fixedly connected to one side surface of the electric telescopic rod (23), the one side surface of the sliding plate (24) is movably connected to one side surface of the fixing plate (15), a second motor (25) is fixedly connected to one side surface of the sliding plate (24), a buckle block (22) is fixedly connected to the output end of the second motor (25), a clamping groove cylinder (21) is arranged on one side surface of the retractable rod (16), and the clamping groove cylinder (21) is adapted to the buckle block (22).

7. An anti-cracking concrete impact resistance test device according to claim 1, characterized in that: One side surface of the chassis (1) is fixedly connected with a rubber shock-absorbing layer (26), one side surface of the rubber shock-absorbing layer (26) is fixedly connected with a bearing plate (27), one side surface of the bearing plate (27) is fixedly connected with shock-absorbing springs (28), three shock-absorbing springs (28) are provided and are evenly distributed in a linear array, and one side surface of the shock-absorbing springs (28) is fixedly connected with a placing bottom block (29).

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