Steel fiber bending resistance detection device

Abstract

The utility model relates to the technical field of bending resistance testing, and discloses a steel fiber bending resistance detecting device which comprises a frame, hollow blocks are fixedly connected to the front side and the rear side of the middle of the inner wall of the frame, electric bidirectional telescopic rods are fixedly connected to the inner sides of the hollow blocks, grooves are formed in the periphery of the top of the frame, and the grooves are connected with the hollow blocks. The telescopic end of each electric bidirectional telescopic rod is fixedly connected with a moving block, the outer side of each moving block is fixedly connected with a first motor, the telescopic end of each first motor is fixedly connected with a rotating rod, a fixed block is fixedly connected between every two adjacent rotating rods, and the inner side of each fixed block is fixedly connected with a second motor. According to the utility model, through the cooperation among the movable block, the fixed block and the L-shaped plate, the applicability of the fixation of the steel plate and the steel wire can be improved, and through the cooperation among the movable block, the U-shaped block and the telescopic plate, the bending resistance detection effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending resistance testing, in particular to a device for detecting the bending performance of steel fibers. Background Art

[0002] Steel fibers are fibers made of steel, usually used to enhance the strength and durability of concrete and other building materials. These fibers can be steel wires, steel wire bundles or steel fibers, which are mixed into the concrete to provide additional support and enhance the performance of the material. To facilitate the detection of the bending performance of steel fibers, a device for detecting the bending performance of steel fibers is required.

[0003] A device for detecting the bending performance of steel fibers is a device used to evaluate the bending performance of steel fiber-reinforced concrete. It usually includes a support system for supporting the test sample and applying a load during the test to conduct the bending performance detection.

[0004] At present, most of the devices for detecting the bending performance of steel fibers on the market can only fix and test one of steel wires or steel plates, and cannot be applied to different types of steel fibers. Due to the lack of versatility, they can only be applied to one type of steel fiber, which limits the user's choice during the test and thus reduces the convenience of the device. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a device for detecting the bending performance of steel fibers, aiming to improve the problem of lack of versatility of the device in detection in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A device for detecting the bending performance of steel fibers, including a frame. Both the front and rear sides of the middle part of the inner wall of the frame are fixedly connected with hollow blocks. An electric bidirectional telescopic rod is fixedly connected inside the hollow block. Grooves are opened at the four corners of the top of the frame. The telescopic end of the electric bidirectional telescopic rod is fixedly connected with a moving block. A first motor is fixedly connected to the outside of the moving block. A rotating rod is fixedly connected to the telescopic end of the first motor. Fixed blocks are fixedly connected between adjacent ones of the plurality of rotating rods. A second motor is fixedly connected inside the fixed block. The output end of the second motor is fixedly connected with a rotating plate. An L-shaped plate is fixedly connected to the outside of the rotating plate. A threaded rod is rotatably connected to the inside of the L-shaped plate. A moving plate is threadedly connected to the outside of the threaded rod. A pressing mechanism is arranged on the outside of the frame.

[0007] As a further description of the above technical solution:

[0008] The pressure applying mechanism includes a plurality of U-shaped blocks. The bottoms of the plurality of U-shaped blocks all penetrate through the groove and are fixedly connected to the corresponding moving blocks. A telescopic plate is rotatably connected to the inner side of the U-shaped block. Hollow frames are fixedly connected to the front and rear sides of the top end of the frame. A connecting block is slidably connected to the inner side of the hollow frame. The left and right sides of the inner walls of the two connecting blocks are respectively rotatably connected to the corresponding telescopic plates. A pressure applying plate is fixedly connected between the two adjacent connecting blocks.

[0009] As a further description of the above technical solution:

[0010] Chute grooves are respectively formed in the front and rear sides of the inner walls of the plurality of grooves. The front and rear sides of the outer walls of the plurality of U-shaped blocks are respectively slidably connected to the corresponding chute grooves.

[0011] As a further description of the above technical solution:

[0012] Support legs are fixedly connected to the four circumferences of the bottom of the frame. Brackets are fixedly connected to the outer sides of the plurality of support legs. The top of the bracket is fixedly connected to the frame.

[0013] As a further description of the above technical solution:

[0014] Positioning blocks are fixedly connected to the bottoms of the outer walls of the plurality of support legs. Positioning holes are formed in the outer sides of the plurality of positioning blocks.

[0015] As a further description of the above technical solution:

[0016] A controller is fixedly connected to the left side of the frame. The controller is electrically connected to the electric bidirectional telescopic rod.

[0017] As a further description of the above technical solution:

[0018] A housing is fixedly connected to the outer side of the controller. A protective cover is rotatably connected to the outer side of the housing.

[0019] As a further description of the above technical solution:

[0020] An indicating block is fixedly connected to the outer side of the connecting block. A plurality of indicating grooves are respectively formed in the outer sides of the two hollow frames.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, starting the electric bidirectional telescopic rod can drive the moving block to move, starting the first motor can drive the rotating rod and the fixed block thereon to rotate, starting the second motor can drive the rotating plate and the L-shaped plate thereon to rotate, and at the same time, rotating the threaded rod can drive the moving plate to move to fix the steel fiber. The steel plate can be fixed by the clamping of the moving plate, and when clamping the steel wire, the L-shaped plate is rotated to wind and fasten the steel wire on its outer side, so as to realize the universality of fixing the steel plate and the steel wire, and the bending detection is realized by rotating the fixed block, thereby improving the convenience of the device.

[0023] 2. In the present utility model, the movement of the moving block can drive the U-shaped block to move and drive the telescopic plate to rotate at the same time, so as to push the connecting block and the pressing plate thereon to move up and down along the hollow frame. When detecting, the pressing plate can further press the object to be detected to improve the detection of the bending resistance performance effect, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional view of a device for detecting the bending resistance performance of steel fibers proposed by the present utility model;

[0025] Figure 2 is a schematic structural view of the rotating rod of a device for detecting the bending resistance performance of steel fibers proposed by the present utility model;

[0026] Figure 3 is a schematic view of the pressing mechanism of a device for detecting the bending resistance performance of steel fibers proposed by the present utility model.

[0027] LEGEND DESCRIPTION:

[0028] 1. Frame; 2. Pressing mechanism; 201. U-shaped block; 202. Telescopic plate; 203. Hollow frame; 204. Connecting block; 205. Pressing plate; 3. Hollow block; 4. Electric bidirectional telescopic rod; 5. Groove; 6. Moving block; 7. First motor; 8. Rotating rod; 9. Fixed block; 10. Second motor; 11. Rotating plate; 12. L-shaped plate; 13. Threaded rod; 14. Moving plate; 15. Slide groove; 16. Positioning hole; 17. Indication groove; 18. Indication block; 19. Controller; 20. Outer shell; 21. Protective cover; 22. Support leg; 23. Bracket; 24. Positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Referring to Figure 1 、 Figure 2 and Figure 3 , an embodiment provided by the present utility model: a steel fiber flexural performance detection device, including a frame 1, hollow blocks 3 are fixedly connected to the front and rear sides of the middle part of the inner wall of the frame 1, an electric bidirectional telescopic rod 4 is fixedly connected to the inner side of the hollow block 3, grooves 5 are provided around the top of the frame 1, a moving block 6 is fixedly connected to the telescopic end of the electric bidirectional telescopic rod 4, a first motor 7 is fixedly connected to the outer side of the moving block 6, a rotating rod 8 is fixedly connected to the telescopic end of the first motor 7, fixing blocks 9 are fixedly connected between adjacent ones of the plurality of rotating rods 8, a second motor 10 is fixedly connected to the inner side of the fixing block 9, a rotating plate 11 is fixedly connected to the output end of the second motor 10, an L-shaped plate 12 is fixedly connected to the outer side of the rotating plate 11, a threaded rod 13 is rotatably connected to the inner side of the L-shaped plate 12, a moving plate 14 is threadedly connected to the outer side of the threaded rod 13, and a pressing mechanism 2 is arranged on the outer side of the frame 1;

[0031] Specifically, starting the electric bidirectional telescopic rod 4 can move the moving block 6; activating the first motor 7 can cause the rotating rod 8 and the fixing block 9 thereon to rotate; starting the second motor 10 can rotate the rotating plate 11 and the L-shaped plate 12 thereon; at the same time, by rotating the threaded rod 13, the movement of the moving plate 14 can be controlled, so as to fix the steel fiber. The clamping function of the moving plate 14 can clamp the steel plate, and when clamping the steel wire, by rotating the L-shaped plate 12, the steel wire is wound and fixed on its outer side. Such a design realizes the universal fixation of the steel plate and the steel wire, and the bending detection can be realized by rotating the fixing block 9.

[0032] Referring to Figure 1 and Figure 3 , the pressing mechanism 2 includes a plurality of U-shaped blocks 201, the bottoms of the plurality of U-shaped blocks 201 penetrate through the grooves 5 and are fixedly connected to the corresponding moving blocks 6, a telescopic plate 202 is rotatably connected to the inner side of the U-shaped block 201, hollow frames 203 are fixedly connected to the front and rear sides of the top end of the frame 1, a connecting block 204 is slidably connected to the inner side of the hollow frame 203, the left and right sides of the inner walls of the two connecting blocks 204 are respectively rotatably connected to the corresponding telescopic plates 202, and a pressing plate 205 is fixedly connected between adjacent ones of the two connecting blocks 204;

[0033] Specifically, the movement of the moving block 6 will not only synchronously push the movement of the U-shaped block 201, but also drive the rotation of the telescopic plate 202. This mechanism enables the connecting block 204 and the pressing plate 205 above it to move up and down along the hollow frame 203. During the flexural performance detection process, by applying additional pressure to the object to be detected through the pressing plate 205, the accuracy of the detection and the flexural performance effect can be effectively improved.

[0034] Referring to Figure 1 andFigure 3 , chutes 15 are provided on both the front and rear sides of the inner walls of the plurality of grooves 5, and both the front and rear sides of the outer walls of the plurality of U-shaped blocks 201 are respectively slidably connected to the corresponding chutes 15; support legs 22 are fixedly connected to the four peripheries of the bottom of the frame 1, brackets 23 are fixedly connected to the outer sides of the plurality of support legs 22, and the tops of the brackets 23 are fixedly connected to the frame 1; positioning blocks 24 are fixedly connected to the bottoms of the outer walls of the plurality of support legs 22, and positioning holes 16 are provided on the outer sides of the plurality of positioning blocks 24;

[0035] Specifically, the chute 15 can improve the stability of the U-shaped block 201 during movement. The device can be fixed by the support legs 22, and the structural strength of the device can be improved by the brackets 23 thereon. By installing threaded parts in the positioning holes 16 of the positioning blocks 24, it is convenient to install and fix the device.

[0036] Refer to Figure 1 、 Figure 2 and Figure 3 , a controller 19 is fixedly connected to the left side of the frame 1, and the controller 19 is electrically connected to the electric bidirectional telescopic rod 4; a housing 20 is fixedly connected to the outside of the controller 19, and a protective cover 21 is rotatably connected to the outside of the housing 20; an indicator block 18 is fixedly connected to the outside of the connecting block 204, and a plurality of indicator grooves 17 are provided on the outside of both of the two hollow frames 203;

[0037] Specifically, the controller 19 can control the start and operating power of the electric bidirectional telescopic rod 4. The protective ability of the controller 19 can be improved by the housing 20. By opening and closing the protective cover 21, it can prevent accidental touch when the controller 19 is not in use. When the connecting block 204 moves, it can drive the indicator block 18 to move accordingly. By moving the indicator block 18 to the outside of different indicator grooves 17, the current pressing pressure can be known to judge the compressive performance of the steel fiber.

[0038] Working principle: Before using this device, first, by starting the electric bidirectional telescopic rod 4, the movement of the moving block 6 can be controlled. Starting the first motor 7 causes the rotating rod 8 and the fixed block 9 thereon to rotate together. At the same time, starting the second motor 10 drives the rotating plate 11 and the L-shaped plate 12 thereon to rotate. In addition, by rotating the threaded rod 13, the movement of the moving plate 14 can be controlled, thereby fixing the steel fibers. The clamping function of the moving plate 14 can be used to fix the steel plate. When clamping the steel wire, the steel wire can be wound and fixed on its outer side by rotating the L-shaped plate 12. This design realizes the universal fixing of the steel plate and the steel wire. At the same time, by rotating the fixed block 9, bending detection can be realized, thereby improving the convenience of the device. And through the moving block 6, the movement of the U-shaped block 201 can be driven simultaneously, and the rotation of the telescopic plate 202 can be controlled. This mechanism drives the connecting block 204 and the pressing plate 205 above it to move up and down along the hollow frame 203. When performing the bending resistance performance test, the pressing plate 205 can apply additional pressure to the object to be tested, thereby improving the test effect and the bending resistance performance, and thus improving the practicability of the device.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steel fiber bending resistance testing device, comprising a frame (1), characterized in that: A hollow block (3) is fixedly connected to the front and rear sides of the middle part of the inner wall of the frame (1); an electric bidirectional telescopic rod (4) is fixedly connected to the inner side of the hollow block (3); grooves (5) are provided around the top of the frame (1); a moving block (6) is fixedly connected to the telescopic end of the electric bidirectional telescopic rod (4); a first motor (7) is fixedly connected to the outer side of the moving block (6); a rotating rod (8) is fixedly connected to the telescopic end of the first motor (7); a fixed block (9) is fixedly connected to adjacent rotating rods (8); a second motor (10) is fixedly connected to the inner side of the fixed block (9); a rotating plate (11) is fixedly connected to the output end of the second motor (10); an L-shaped plate (12) is fixedly connected to the outer side of the rotating plate (11); a threaded rod (13) is rotatably connected to the inner side of the L-shaped plate (12); the moving plate (14) is threadedly connected to the outer side of the threaded rod (13); and a pressure mechanism (2) is arranged on the outer side of the frame (1).

2. A steel fiber bending resistance testing device according to claim 1, characterized in that: The pressure mechanism (2) comprises a plurality of U-shaped blocks (201), the bottoms of the plurality of U-shaped blocks (201) all pass through the grooves (5) and are fixedly connected to the corresponding moving blocks (6), the inner sides of the U-shaped blocks (201) are rotatably connected to a telescopic plate (202), the front and rear sides of the top of the frame (1) are fixedly connected to a hollow frame (203), the inner side of the hollow frame (203) is slidably connected to a connecting block (204), the left and right sides of the inner walls of the two connecting blocks (204) are respectively rotatably connected to the corresponding telescopic plate (202), and a pressure plate (205) is fixedly connected between the two adjacent connecting blocks (204).

3. A steel fiber bending performance testing device according to claim 2, characterized in that: The front and rear sides of the inner walls of the plurality of grooves (5) are provided with sliding grooves (15), and the front and rear sides of the outer walls of the plurality of U-shaped blocks (201) are respectively slidably connected to the corresponding sliding grooves (15).

4. A steel fiber bending performance testing device according to claim 1, characterized in that: The bottom of the frame (1) is fixedly connected to support legs (22) on all sides, the outer sides of the plurality of support legs (22) are fixedly connected to brackets (23), and the tops of the brackets (23) are fixedly connected to the frame (1).

5. A steel fiber bending resistance testing device according to claim 4, characterized in that: The bottoms of the outer walls of the plurality of support legs (22) are all fixedly connected with positioning blocks (24), and positioning holes (16) are formed on the outer sides of the plurality of positioning blocks (24).

6. A steel fiber bending performance testing device according to claim 1, characterized in that: A controller (19) is fixedly connected to the left side of the frame (1), and the controller (19) is electrically connected to the electric bidirectional telescopic rod (4).

7. A steel fiber bending resistance testing device according to claim 6, characterized in that: The outer side of the controller (19) is fixedly connected to a housing (20), and the outer side of the housing (20) is rotatably connected to a protective cover (21).

8. A steel fiber bending resistance testing device according to claim 2, characterized in that: An indicator block (18) is fixedly connected to the outer side of the connection block (204), and a plurality of indicator grooves (17) are provided on the outer sides of the two hollow frames (203).

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