Concrete falling ball impact adjustable device

Abstract

The utility model discloses a concrete falling ball impact adjustable device which comprises an impact test platform, a falling ball assembly, a telescopic guide cylinder and a support cushion block, a main body bracket is mounted above the impact test platform; the ball falling assembly is mounted at the top of the main body bracket through a pulley; the telescopic guide cylinder is installed on the main body support, and the ball falling assembly is located in an inner cavity of the telescopic guide cylinder. The number of the support cushion blocks is two, the two support cushion blocks are connected to the top face of the impact test platform in a sliding mode, and positioning parts detachably connected with the impact test platform are installed on the support cushion blocks. The resetting device solves the resetting problem of falling ball impact test devices for concrete samples with different sizes, can be quickly and simply operated to achieve multiple impact tests, and has the advantages of simple structure, convenience in assembly, good universality, flexibility, adjustability, labor saving, simplicity in test sample assembly and positioning and good assembly and construction stability.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete falling ball impact test, in particular to an adjustable concrete falling ball impact device. Background Art

[0002] Concrete impact testing equipment is a crucial device for evaluating the impact resistance of concrete materials. Extensive research and development has been conducted both domestically and internationally in this area. Conventional concrete impact testing equipment includes drop hammer and pendulum impact. While these types of impact testing equipment can currently meet testing needs to a certain extent, with technological advancements, the controllability and flexibility of impact testing remain insufficient. Future testing equipment will be increasingly multifunctional, requiring compatibility for fatigue impact testing, impact testing equipment for specimens of varying sizes, and the need for repositioning for multiple impacts, resulting in poor controllability.

[0003] Therefore, an adjustable concrete falling ball impact device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable device for concrete falling ball impact, aiming to solve or improve at least one of the above technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides an adjustable device for impacting a falling ball on concrete, comprising:

[0006] An impact test platform, with a main body bracket installed above the impact test platform;

[0007] A ball drop assembly, the ball drop assembly being mounted on the top of the main support via a pulley;

[0008] a telescopic guide cylinder, the telescopic guide cylinder being mounted on the main support, the ball-dropping assembly being located in an inner cavity of the telescopic guide cylinder;

[0009] A support pad, wherein two support pads are provided, the two support pads are slidably connected to the top surface of the impact test platform, and a positioning component detachably connected to the impact test platform is installed on the support pad;

[0010] Among them, the top surfaces of the support blocks are detachably connected with fixers on both sides, a concrete sample is provided between the two support blocks, the concrete sample is detachably connected between the four fixers, and the concrete sample is located directly below the telescopic guide cylinder.

[0011] According to the utility model, a concrete falling ball impact adjustable device is provided, the impact test platform includes a base, and the main body bracket is installed above the base; a slide groove is horizontally opened on the base, the bottoms of the two support pads are slidably connected to the slide groove, and the positioning component is detachably connected to the slide groove.

[0012] According to the utility model, a concrete falling ball impact adjustable device is provided, wherein the support pad includes a pad body, a connecting end is integrally formed at the bottom of the pad body, a protrusion is provided at the bottom of the connecting end, a slider is fixed to the bottom of the protrusion, and the protrusion and the slider are both slidably connected to the slide groove;

[0013] The bottom surface of the connecting end is slidably connected to the top surface of the base, the two sides of the top surface of the pad body are detachably connected to the fixer, and the concrete sample is installed between the two pad bodies;

[0014] The positioning component includes a fastening bolt, and the connecting end and the protrusion are detachably connected through the fastening bolt. The fastening bolt is used to adjust the gap between the sliding block and the bottom wall of the sliding groove.

[0015] According to the utility model, a concrete falling ball impact adjustable device is provided, wherein the main body bracket includes two bottom brackets arranged side by side, the two bottom brackets are respectively installed on both sides of the base, vertical brackets are installed on the bottom brackets, top brackets are installed on the tops of the two vertical brackets, and a cross bar is installed at the center of the two vertical brackets;

[0016] The vertical bracket is detachably connected to the bottom bracket via an angle bracket, and the vertical bracket and the bottom bracket are respectively threadedly connected to the angle bracket via angle bracket bolts;

[0017] The top bracket and the cross bar are both located above the base; the ball drop assembly is installed on the top bracket through the pulley, and the telescopic guide cylinder is installed on the cross bar.

[0018] According to the utility model, a concrete falling ball impact adjustable device is provided. The telescopic guide cylinder includes a liftable sleeve installed on the cross bar, and a knob is installed on the outer wall of the liftable sleeve; the concrete sample is located directly below the liftable sleeve, and the falling ball assembly is located in the inner cavity of the liftable sleeve.

[0019] According to the utility model, a concrete falling ball impact adjustable device is provided. A groove is provided on the pulley. The falling ball assembly includes an elastic rope. One end of the elastic rope is wound in the groove, and the other end is fixed to a mesh bag. The mesh bag is located in the inner cavity of the liftable sleeve, and a steel ball is provided inside the mesh bag.

[0020] According to the adjustable concrete falling ball impact device provided by the utility model, the cross-sectional shape of the chute is T-shaped, and scales are provided on the inner wall of the chute.

[0021] According to the adjustable concrete falling ball impact device provided by the utility model, the two ends of the fixer are detachably connected to the two sides of the top surface of the pad body through fixer bolts.

[0022] According to the adjustable concrete falling ball impact device provided by the utility model, the angle brackets are installed between the top bracket and the vertical bracket, and between the cross bar and the vertical bracket.

[0023] The utility model discloses the following technical effects:

[0024] The utility model can adjust the spacing of the support blocks according to the size of the concrete sample by sliding two support blocks on the top surface of the impact test platform. After adjustment, the spacing is locked by the positioning component, and then the concrete sample is fixed by four fixers. The drop ball impact test is then carried out by the drop ball assembly. The sample assembly and positioning are simple, and the assembly construction has good stability.

[0025] The utility model solves the problem of resetting the falling ball impact test device for concrete samples of different sizes through the disassembly and assembly of the support pad, the positioning component and the fixer, and can achieve multiple impact tests with quick and easy operation. It has the advantages of simple structure, convenient assembly, good versatility, flexible adjustment, labor saving, simple assembly and positioning of the test sample, and good assembly construction stability.

[0026] The telescopic guide cylinder of the utility model is used to adjust the impact height of the falling ball, and the falling ball assembly is installed on the main bracket through a pulley, so that the energy dissipation of the falling ball impact is small, thereby improving the accuracy and repeatability of the impact test. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] Figure 2 This is a schematic diagram of the installation of the impact test platform and the support pad in the utility model;

[0030] Figure 3This is a schematic diagram of the installation of the support pad and the slide in the utility model;

[0031] Figure 4 This is a schematic diagram of the installation of the support pad and the concrete sample in the utility model;

[0032] Figure 5 This is a schematic diagram of the installation of the angle bracket in the present utility model.

[0033] Among them, 2. Impact test platform; 3. Support pad; 4. Concrete specimen; 5. Fixer; 6. Main bracket; 7. Angle code; 8. Knob; 9. Liftable sleeve; 10. Pulley mechanism; 11. Drop ball assembly; 12. Slide; 13. Base; 14. Pad body; 15. Connecting end; 16. Bump; 17. Slider; 18. Fixer bolt; 19. Nut; 20. Angle code bolt. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0036] Reference Figure 1-Figure 5 The utility model provides an adjustable concrete falling ball impact device, comprising:

[0037] Impact test platform 2, with a main body bracket 6 installed above the impact test platform 2;

[0038] The ball drop assembly 11 is mounted on the top of the main support 6 via a pulley;

[0039] The telescopic guide cylinder is mounted on the main support 6, and the ball drop assembly 11 is located in the inner cavity of the telescopic guide cylinder;

[0040] Support pads 3, two support pads 3 are provided, the two support pads 3 are slidably connected to the top surface of the impact test platform 2, and a positioning component detachably connected to the impact test platform 2 is installed on the support pads 3;

[0041] Among them, the top surfaces of the support blocks 3 are detachably connected to the two sides with fixtures 5, and a concrete sample 4 is provided between the two support blocks 3. The concrete sample 4 is detachably connected between the four fixtures 5, and the concrete sample 4 is located directly below the telescopic guide cylinder;

[0042] With such a configuration, the utility model can adjust the spacing of the support blocks 3 according to the size of the concrete sample 4 by sliding the two support blocks 3 on the top surface of the impact test platform 2. After adjustment, the spacing is locked by the positioning component, and then the concrete sample 4 is fixed by the four fixers 5. Then, the drop ball impact test is performed by the drop ball assembly 11. The sample assembly and positioning are simple, and the assembly construction stability is good.

[0043] The utility model can solve the problem of resetting the falling ball impact test device of concrete samples 4 of different sizes by disassembling and assembling the support pad 3, the positioning component and the fixer 5, and can achieve multiple impact tests with quick and simple operation. It has the advantages of simple structure, convenient assembly, good versatility, flexible adjustment, labor saving, simple assembly and positioning of test samples, and good assembly construction stability, and reduces the tedious and complicated process of repositioning the falling ball after each impact.

[0044] The telescopic guide cylinder of the utility model is used to adjust the impact height of the falling ball. The falling ball assembly 11 is installed on the main bracket 6 through a pulley, so that the energy dissipation of the falling ball impact is small, thereby improving the accuracy and repeatability of the impact test.

[0045] Further optimizing the scheme, the impact test platform 2 includes a base 13, and the main support 6 is installed above the base 13; a slide groove 12 is horizontally opened on the base 13, and the bottoms of the two support blocks 3 are slidably connected to the slide groove 12, and the positioning component is detachably connected to the slide groove 12;

[0046] The base 13 is a rectangular parallelepiped structure, and the size of the base 13 is 500*100*25 mm.

[0047] Further optimized, the support pad 3 includes a pad body 14, the bottom of the pad body 14 is integrally formed with a connecting end 15, the bottom of the connecting end 15 is provided with a protrusion 16, the bottom of the protrusion 16 is fixed with a slider 17, and the protrusion 16 and the slider 17 are both slidably connected to the slide groove 12;

[0048] The pad body 14 is a rectangular parallelepiped structure, and the size of the pad body 14 is 150*50*50mm. The pad body 14 and the connecting end 15 are designed as a whole, and the whole is an L-shaped structure.

[0049] The bottom surface of the connecting end 15 is slidably connected to the top surface of the base 13, and the two sides of the top surface of the pad body 14 are detachably connected with the fixer 5, and the concrete sample 4 is installed between the two pad bodies 14;

[0050] The dimensions of the holder 5 are 55mm inner height, 5mm plate thickness, 25mm plate length, and 30mm plate width, and the clampable size range is 1-50mm thickness;

[0051] The positioning component includes a fastening bolt, through which the connecting end 15 and the protrusion 16 are detachably connected, and the fastening bolt is used to adjust the gap between the slider 17 and the bottom wall of the chute 12;

[0052] The utility model is designed for testing based on a span (the distance between the two pad bodies 14) of 80% of the length of the concrete sample 4. The bottom span of samples of different sizes can be positioned by sliding the pad body 14 to the scale mark position of the slide 12 and then tightening the fastening bolts.

[0053] The fixer 5 of this embodiment is arranged at the front and rear ends of the pad body 14 of the vertical part of the support pad 3, and is used to clamp the concrete sample 4, which can satisfy the base 13, the support pad 3 and the concrete sample 4, thereby completing the front and back and downward constraints of the concrete sample 4, and in the upward direction, due to the constraint with the base 13 and the support pad 3, there will not be a large impact rebound amplitude, so that the concrete sample 4 will only diffuse the impact along the middle impact point during the impact process, and the impact damage will accumulate as the number of impacts accumulates.

[0054] Further optimized, the main frame 6 includes two bottom frames arranged side by side, the two bottom frames are respectively installed on both sides of the base 13, a vertical frame is installed on the bottom frame, a top frame is installed on the top of the two vertical frames, and a cross bar is installed at the center of the two vertical frames;

[0055] The main support 6 is made of national standard QL-005 aluminum material with a wall thickness of 2.0mm; the length of the vertical support is 1000mm, and the length of the crossbar and top support are both 500mm;

[0056] The vertical bracket is detachably connected to the bottom bracket via an angle bracket 7. The vertical bracket and the bottom bracket are respectively threadedly connected to the angle bracket 7 via angle bracket bolts 20. The angle bracket 7 is a 40×40mm aluminum angle bracket.

[0057] The top bracket and the crossbar are both located above the base 13; the ball drop assembly 11 is mounted on the top bracket via a pulley, and the telescopic guide cylinder is mounted on the crossbar.

[0058] In a further optimized solution, the telescopic guide cylinder includes a liftable sleeve 9 mounted on the crossbar, and a knob 8 is mounted on the outer wall of the liftable sleeve 9; the concrete sample 4 is located directly below the liftable sleeve 9, and the ball drop assembly 11 is located in the inner cavity of the liftable sleeve 9;

[0059] In this embodiment, the knob 8 is a flower-shaped knob. By rotating the knob 8, the length of the liftable sleeve 9 is locked. The liftable sleeve 9 is welded to the crossbar. The crossbar is used to constrain the liftable sleeve 9 to prevent the liftable sleeve 9 from turbulence during the impact of the falling ball, which would lead to test errors such as inconsistent impact points of the falling ball each time.

[0060] The liftable sleeve 9 is designed to be connected with a thick and thin tube, with the upper part being a thin tube and the lower part being a thick tube. The thin tube is 500mm high, and the thick tube can be designed to be less than or equal to 500mm. The inner diameters of the thick and thin tubes are 90mm and 85mm respectively, and the wall thickness is about 5mm. A "flower-shaped" knob 8 is provided at the middle connection for fixed connection. During the test, the "flower-shaped" knob 8 of the liftable sleeve 9 is used to limit the height, and the installation position of the cross bar is also adjusted for height design.

[0061] To further optimize the solution, a groove is provided on the pulley, and the ball-dropping assembly 11 includes an elastic rope, one end of which is wound in the groove and the other end is fixed with a mesh bag, which is located in the inner cavity of the liftable sleeve 9 and has a steel ball inside; the groove is 5 mm.

[0062] A further optimized solution is that the cross-sectional shape of the chute 12 is T-shaped, and a scale is provided on the inner wall of the chute 12. The scale is marked from 0mm in the middle position to 250mm at both ends, which is used to mark the span of the support pad at the bottom end of the specimen; the upper end of the chute 12 is opened 10mm.

[0063] In a further optimized solution, both ends of the fixer 5 are detachably connected to both sides of the top surface of the pad body 14 through fixer bolts 18 .

[0064] To further optimize the solution, angle brackets 7 are installed between the top bracket and the vertical bracket, and between the crossbar and the vertical bracket.

[0065] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0066] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A concrete falling ball impact adjustable device, characterized in that: include: An impact test platform (2), wherein a main body bracket (6) is installed above the impact test platform (2); A ball drop assembly (11), the ball drop assembly (11) being mounted on the top of the main body bracket (6) via a pulley; a telescopic guide cylinder, the telescopic guide cylinder being mounted on the main body bracket (6), and the ball drop assembly (11) being located in the inner cavity of the telescopic guide cylinder; A support pad (3), wherein two support pads (3) are provided, the two support pads (3) are slidably connected to the top surface of the impact test platform (2), and a positioning component detachably connected to the impact test platform (2) is installed on the support pad (3); Wherein, the top surfaces of the support pads (3) are detachably connected to fixators (5) on both sides, a concrete sample (4) is provided between the two support pads (3), the concrete sample (4) is detachably connected between the four fixators (5), and the concrete sample (4) is located directly below the telescopic guide cylinder.

2. The adjustable concrete falling ball impact device according to claim 1, characterized in that: The impact test platform (2) includes a base (13), and the main support (6) is installed above the base (13); a slide groove (12) is horizontally opened on the base (13), and the bottoms of the two support pads (3) are slidably connected to the slide groove (12), and the positioning component is detachably connected to the slide groove (12).

3. The adjustable concrete falling ball impact device according to claim 2, characterized in that: The support pad (3) includes a pad body (14), a connecting end (15) is integrally formed at the bottom of the pad body (14), a convex block (16) is provided at the bottom of the connecting end (15), a slider (17) is fixed to the bottom of the convex block (16), and both the convex block (16) and the slider (17) are slidably connected to the slide groove (12); The bottom surface of the connecting end (15) is slidably connected to the top surface of the base (13), the two sides of the top surface of the pad body (14) are detachably connected to the fixer (5), and the concrete sample (4) is installed between the two pad bodies (14); The positioning component includes a fastening bolt, and the connecting end (15) and the protrusion (16) are detachably connected via the fastening bolt. The fastening bolt is used to adjust the gap between the slider (17) and the bottom wall of the slide groove (12).

4. The adjustable concrete falling ball impact device according to claim 2, characterized in that: The main body bracket (6) includes two bottom brackets arranged side by side, the two bottom brackets are respectively installed on both sides of the base (13), a vertical bracket is installed on the bottom bracket, a top bracket is installed on the top of the two vertical brackets, and a cross bar is installed at the center of the two vertical brackets; The vertical bracket is detachably connected to the bottom bracket via an angle bracket (7), and the vertical bracket and the bottom bracket are respectively threadedly connected to the angle bracket (7) via angle bracket bolts (20); The top bracket and the cross bar are both located above the base (13); the ball drop assembly (11) is mounted on the top bracket via the pulley, and the telescopic guide cylinder is mounted on the cross bar.

5. The adjustable concrete falling ball impact device according to claim 4, characterized in that: The telescopic guide cylinder comprises a liftable sleeve (9) mounted on the crossbar, and a knob (8) is mounted on the outer wall of the liftable sleeve (9); the concrete sample (4) is located directly below the liftable sleeve (9), and the falling ball assembly (11) is located in the inner cavity of the liftable sleeve (9).

6. The adjustable concrete falling ball impact device according to claim 5, characterized in that: A groove is provided on the pulley, and the ball-dropping assembly (11) includes an elastic rope, one end of which is wound in the groove and the other end of which is fixed to a mesh bag. The mesh bag is located in the inner cavity of the liftable sleeve (9), and a steel ball is provided inside the mesh bag.

7. The adjustable concrete falling ball impact device according to claim 2, characterized in that: The cross-section of the chute (12) is T-shaped, and a scale is provided on the inner wall of the chute (12).

8. The adjustable concrete falling ball impact device according to claim 3, characterized in that: The two ends of the fixer (5) are detachably connected to the two sides of the top surface of the pad body (14) via fixer bolts (18).

9. The adjustable concrete falling ball impact device according to claim 4, characterized in that: The angle codes (7) are installed between the top bracket and the vertical bracket, and between the crossbar and the vertical bracket.

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