A concrete impact resistance testing device

Abstract

A concrete impact resistance testing device is disclosed, relating to the field of building testing equipment technology. The device comprises a movable plate whose right side wall is connected to an impact head; a guide column whose right end is fixed to the inner wall of the right side of the impact chamber; a compression spring sleeved on the outside of the guide column; a guide block located in a groove on the left side of the movable plate; a drive mechanism connected to the guide block; a rotating plate positioned on the upper side of a base plate; a lifting mechanism positioned between the rotating plate and an adjusting plate; a support plate whose upper side is screwed to the front and rear sides of the rotating plate; a rotating rod whose rear end is fixedly connected to the output shaft of a rotating motor; and two rotating rod ends screwed to the upper surface of the base plate; a rotating sleeve whose right end is fixed to the front and rear ends of the left side of the outer ring wall of the rotating rod; a rotating insert rod inserted into two rotating sleeves; and two support plates screwed to the left end of the rotating insert rod via bolts. This device allows the testing equipment to be moved to the construction site without moving concrete components, thus not affecting the test results and improving the accuracy of the test.

Description

Technical Field

[0001] This invention relates to the field of building testing equipment technology, and specifically to a concrete impact resistance testing device. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. When concrete is manufactured into blocks, it is necessary to test not only its compressive strength but also its impact resistance to determine its impact resistance and application range. Currently, most concrete impact tests are conducted using a drop hammer impact testing machine. As is well known, drop hammer impact testing machines are large and inconvenient to move, thus limiting their use to laboratory environments. The current method is to transport concrete test blocks to a laboratory equipped with a drop hammer impact testing machine. However, concrete test blocks are often formed in ideal conditions, which differ from concrete components on the construction site, thus affecting the test results. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed and easy-to-use concrete impact resistance testing device. This device can be moved to the construction site without moving the concrete components, thus not affecting the test results and improving the accuracy of the test.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: it comprises a base plate, casters, an impact box, and an impact head. Casters are fixed to the four corners of the lower surface of the base plate. The impact box is suspended from the upper side of the base plate. An impact head is inserted into the right side wall of the impact box, with the right side of the impact head exposed on the right side of the impact box. It further comprises:

[0005] The movable plate is located on the right side inside the impact box, and the right side wall of the movable plate is connected to the impact head. The lower side of the movable plate is slidably disposed in a groove on the lower inner wall of the impact box via a sliding block.

[0006] The guide post is located on the lower side inside the impact box. The left end of the guide post is fixed to the inner wall on the left side of the impact box, and the right end of the guide post moves through the moving plate and is fixed to the inner wall on the right side of the impact box.

[0007] A compression spring is sleeved on the outside of the guide post, with its left end fixed to the inner wall of the left side of the impact box and its right end fixed to the left side of the moving plate.

[0008] The guide block is located in the groove on the left side of the movable plate, and the guide rod that moves through the guide block is fixedly connected to the inner walls of the upper and lower sides of the groove respectively.

[0009] A reset spring is sleeved on a guide post located below the guide block, and the upper and lower ends of the reset spring are fixedly connected to the inner wall of the groove on the left side of the moving plate and the bottom wall of the guide block, respectively.

[0010] The drive mechanism is located on the upper side inside the impact box and is connected to the guide block.

[0011] An adjusting plate is located on the lower side of the impact box;

[0012] The slider is two in number, and the two sliders are fixed on the front and rear sides of the bottom right side of the impact box, respectively. The sliders are slidably set in the grooves on both sides of the upper surface of the adjustment plate.

[0013] The slide plate consists of two slide plates, which are fixed to the front and rear sides of the left side of the upper surface of the adjustment plate. The upper side of the slide plate is inserted into the sliding grooves on the front and rear sides of the bottom of the impact box. Several through holes are provided at equal intervals on the left side of the front and rear outer walls of the impact box. After the positioning pin passes through the through holes, it is inserted into the slide plate.

[0014] A rotating plate, wherein the rotating plate is disposed below the adjusting plate and above the base plate;

[0015] A lifting mechanism is provided between the rotating plate and the adjusting plate;

[0016] The support plate consists of two plates, the lower sides of which are fixed to the front and rear sides of the right side of the upper surface of the base plate, and the two support plates are respectively set on the front and rear sides of the right side of the rotating plate, and the upper sides of the support plates are screwed to the front and rear sides of the rotating plate through a rotating shaft.

[0017] A rotary motor is embedded and fixed on the rear side of the upper surface of the base plate. The rotary motor is connected to a storage battery, which is fixed at the center of the upper surface of the base plate.

[0018] The rotating rod has its rear end fixedly connected to the output shaft of the rotary motor, and its front and rear ends are respectively screwed to the upper surface of the base plate through hinge seats.

[0019] Rotary sleeves, wherein there are two rotary sleeves, and the right ends of the rotary sleeves are respectively fixed to the front and rear ends of the left side of the outer ring wall of the rotating rod;

[0020] Two rotating inserts are inserted into two rotating sleeves respectively and connected by bolts.

[0021] The support plates are two in number, and the two support plates are fixed on the front and rear sides of the left side of the lower surface of the rotating plate, respectively. The lower side of the support plates abuts against the upper surface of the base plate. The two support plates are screwed to the left end of the rotating rod by bolts.

[0022] Preferably, the drive mechanism comprises:

[0023] The drive motor is fixed on the inner wall of the right side of the impact box and is connected to the battery.

[0024] The drive rod is located on the upper side inside the impact box, and the right end of the drive rod is fixedly connected to the output shaft of the drive motor.

[0025] The active bevel gear is located on the upper left side inside the impact box and is sleeved and fixed on the left end of the drive rod.

[0026] The driven bevel gear is located to the left of the driving bevel gear and is meshed with the driving bevel gear.

[0027] The driven rod, the middle end of which is inserted and fixed in the driven bevel gear, and the front and rear ends of the driven rod are respectively screwed to the front and rear side walls of the impact box through bearings;

[0028] A drive gear, which is sleeved and fixed on the front end of the driven rod;

[0029] The driven rack is located at the center of the impact box. The left end of the driven rack moves through the left side wall of the impact box and is exposed on the left side of the impact box. The right side of the driven rack is fixed on the left side wall of the guide block. The front and rear sides of the driven rack are slidably mounted on the protrusions on the front and rear inner walls of the impact box through the sliding grooves.

[0030] Two electric push rods are provided, and both electric push rods are connected to the battery. The electric push rods are fixed on the front and rear sides of the top surface inside the impact box, and the electric push rods are located on the left side of the driven rod. The piston rods of the electric push rods abut against the front and rear sides of the upper surface of the driven rack.

[0031] Preferably, the lifting mechanism comprises:

[0032] The connecting rods consist of eight rods, which are symmetrically arranged in pairs on the lower surface of the adjusting plate and on the left and right sides of the upper surface of the rotating plate.

[0033] The fixing plates consist of eight plates, which are equally fixed to the lower surface of the adjusting plate and the four corners of the upper surface of the rotating plate. The front and rear fixing plates on the same plane are respectively screwed to the front and rear ends of two connecting rods on the same side via bearings.

[0034] The half gears consist of sixteen half gears, which are respectively sleeved and fixed on both ends of the connecting rod. The two half gears on the same end of the two connecting rods on the same side are meshed together.

[0035] The connecting rod consists of sixteen rods, one end of which is respectively sleeved and fixed to both ends of the connecting rod. The connecting rods are located on the outside of the half gear, and the adjacent ends of two connecting rods on the same vertical plane are screwed together by bolts.

[0036] Driven gears, there are two driven gears, each suspended on the upper side of the rotating plate, and the driven gears are sleeved and fixed on the middle end of the connecting rod adjacent to the center of the rotating plate.

[0037] A lifting motor is fixed on the upper surface of the rotating plate and is connected to a storage battery.

[0038] The driving gear is sleeved and fixed on the output shaft of the lifting motor, and the driving gear is connected to the driven gears on both sides through a chain.

[0039] Preferably, an internally threaded tube is fixed on the right side wall of the movable plate. The right end of the internally threaded tube passes through the right side wall of the impact box and is sleeved on the handle of the impact head, and is screwed on. During use, the position of the impact head can be adjusted as needed.

[0040] Preferably, a support frame is fixed on the right side of the upper surface of the rotating plate. The support frame is arranged in an inverted "L" shape. When impacting the horizontally placed concrete, the rotating plate is rotated. After the rotating plate is rotated to a vertical position, the horizontal edge of the support frame abuts against the upper surface of the base plate, thereby supporting the rotating plate.

[0041] The working principle of this invention is as follows: During use, the device is pushed to the construction site via casters and positioned to one side of the concrete to be tested. When testing vertically placed concrete, the lifting mechanism moves the adjusting plate to a suitable height until the impact head reaches the appropriate height. Then, the device is moved so that the impact head contacts the side wall of the concrete. At this point, the drive mechanism moves the moving plate to the left, until it reaches the far left. The drive mechanism is then released, releasing the moving plate, which, under the elastic force of the compression spring, quickly moves to the right, causing the impact head to strike the side of the concrete, thus achieving the effect of testing the concrete's impact resistance. When testing horizontally placed concrete, the bolts on the rotating sleeve are first loosened, and then the rotating motor is started. The rotating motor drives the rotating rod to rotate, which in turn drives the rotating sleeves at both ends. The tube rotates, the rotating sleeve drives the rotating rod to rotate, the rotating rod drives the support plate to rotate, and the support plate drives the rotating plate to rotate until the rotating plate is perpendicular to the base plate. Then the bolts on the rotating sleeve are tightened, so that the rotating sleeve and the rotating rod support the rotating plate. At this time, the impact head is suspended on the right side of the base. Then, according to the thickness of the concrete, the positioning pin is loosened, and the impact box is moved upward. After moving, the device is pushed to the upper side of the concrete. Then the impact box is released, and the impact box slides downward until the impact head touches the upper surface of the concrete. Then the positioning pin is inserted into the through hole and the sliding plate to position the impact box. During the test, the moving plate is moved by the drive mechanism. After the moving plate moves upward to the appropriate position, the moving plate is released. The moving plate drives the punching head to move upward, so that the punching head hits the concrete to achieve the test effect.

[0042] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0043] 1. It can be moved to the construction site, and after being moved to the construction site, the height of the impact head can be adjusted to impact concrete of different heights to achieve the test effect;

[0044] 2. A rotating plate is provided on the upper side of the base plate. The rotating plate can rotate so that the impact head is suspended on the right side of the base plate, which can then impact the horizontally placed concrete to meet the test requirements of the horizontally placed concrete.

[0045] 3. The lower side of the impact box slides on the adjustment plate via a slider. The slide plate on the adjustment plate is connected to the impact box via a positioning pin. Thus, when impacting horizontally placed concrete, the height of the impact box can be adjusted according to the thickness of the concrete, making operation convenient. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of the present invention.

[0047] Figure 2 for Figure 1 Sectional view along line AA.

[0048] Figure 3 for Figure 2 Enlarged view of section B in the middle.

[0049] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0050] Figure 5 for Figure 4 Enlarged view of section C.

[0051] Figure 6 for Figure 4 Enlarged view of section D in the middle.

[0052] Figure 7 This is a schematic diagram of the structure of the adjustment plate in this invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Base plate, 2. Casters, 3. Impact box, 4. Impact head, 5. Moving plate, 6. Guide column, 7. Compression spring, 8. Guide block, 9. Return spring, 10. Drive mechanism, 10-1. Drive motor, 10-2. Drive rod, 10-3. Drive bevel gear, 10-4. Driven rod, 10-5. Drive gear, 10-6. Driven rack, 10-7. Electric push rod, 10-8. Adjusting plate, 11. Slider, 12. Slide plate, 13. Through hole, 14. Positioning pin, 15. Rotating plate, 16. Lifting mechanism, 17. Connecting rod, 17-1. Fixed plate, 17-2. Half gear, 17-3. Connecting rod, 17-4. Driven gear, 17-5. Lifting motor, 17-6. Drive gear, 17-7. Support plate, 18. Rotary motor, 19. Battery, 20. Rotating rod, 21. Rotating sleeve, 22. Rotating insert rod, 23. Support plate, 24. Internal threaded tube, 25. Support frame, 26. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] like Figures 1-7 As shown, this specific embodiment adopts the following technical solution: It includes a base plate 1, casters 2, an impact box 3, and an impact head 4. Casters 2 are riveted and fixed to the four corners of the lower surface of the base plate 1. The impact box 3 is suspended on the upper side of the base plate 1. The impact head 4 is inserted into the right side wall of the impact box 3, with the right side of the impact head 4 exposed on the right side of the impact box 3. It also includes:

[0057] The movable plate 5 is located on the right side inside the impact box 3, and the right side wall of the movable plate 5 is connected to the impact head 4. The lower side of the movable plate 5 is slidably disposed in a groove on the lower inner wall of the impact box 3 via a sliding block.

[0058] The guide post 6 is located on the lower side inside the impact box 3. The left end of the guide post 6 is welded and fixed to the inner wall on the left side of the impact box 3, and the right end of the guide post 6 moves through the moving plate 5 and is then welded and fixed to the inner wall on the right side of the impact box 3.

[0059] Compression spring 7 is sleeved on the outside of guide post 6, and the left end of compression spring 7 is riveted and fixed to the inner wall of the left side of impact box 3, and the right end of compression spring 7 is riveted and fixed to the left side of moving plate 5.

[0060] Guide block 8, the guide block 8 is set in the groove on the left side of the movable plate 5, and the guide rod that moves through the guide block 8 is riveted and fixed to the inner walls of the upper and lower sides of the groove respectively.

[0061] The reset spring 9 is sleeved on the guide post 6 located below the guide block 8, and the upper and lower ends of the reset spring 9 are fixedly connected to the inner wall of the groove on the left side of the moving plate 5 and the bottom wall of the guide block 8, respectively.

[0062] The drive mechanism 10 is located on the upper side inside the impact box 3 and is connected to the guide block 8.

[0063] Adjustment plate 11, wherein the adjustment plate 11 is disposed on the lower side of the impact box 3;

[0064] Slider 12, there are two sliders 12, the two sliders 12 are riveted and fixed to the front and rear sides of the bottom right side of the impact box 3 respectively, and the sliders 12 are slidably arranged in the grooves on both sides of the upper surface of the adjustment plate 11.

[0065] The slide plate 13 consists of two slide plates 13, which are riveted and fixed to the front and rear sides of the left side of the upper surface of the adjusting plate 11. The upper side of the slide plate 13 is inserted into the sliding grooves on the front and rear sides of the bottom of the impact box 3. Several through holes 14 are equally spaced on the left side of the front and rear outer walls of the impact box 3. After the positioning pin 15 passes through the through holes 14, it is inserted into the slide plate 13.

[0066] Rotating plate 16, the rotating plate 16 is disposed on the lower side of adjusting plate 11, and the rotating plate 16 is disposed on the upper side of base plate 1;

[0067] Lifting mechanism 17, wherein the lifting mechanism 17 is disposed between the rotating plate 16 and the adjusting plate 11;

[0068] Support plate 18, there are two support plates 18, the lower sides of the two support plates 18 are respectively riveted and fixed to the front and rear sides of the right side of the upper surface of the base plate 1, and the two support plates 18 are respectively set on the front and rear sides of the right side of the rotating plate 16, and the upper side of the support plate 18 is screwed to the front and rear sides of the rotating plate 16 through a rotating shaft.

[0069] A rotary motor 19 is embedded in and fixed to the rear side of the upper surface of the base plate 1 by bolts. The rotary motor 19 is connected to the battery 20, which is fixed to the center of the upper surface of the base plate 1 by bolts.

[0070] Rotary rod 21, the rear end of which is riveted and fixed to the output shaft of rotary motor 19, and the front and rear ends of the rotary rod 21 are respectively screwed to the upper surface of the base plate 1 through hinge seats;

[0071] Rotary sleeve 22, there are two rotating sleeves 22, and the right ends of the rotating sleeves 22 are respectively welded and fixed to the front and rear ends of the left side of the outer ring wall of the rotating rod 21;

[0072] Two rotating insert rods 23 are inserted into two rotating sleeves 22 respectively and connected by bolts.

[0073] Support plate 24, there are two support plates 24, the two support plates 24 are riveted and fixed to the front and rear sides of the left side of the lower surface of the rotating plate 16 respectively, the lower side of the support plate 24 abuts against the upper surface of the base plate 1, and the two support plates 24 are screwed to the left end of the rotating rod 23 by bolts.

[0074] As a preferred embodiment, the drive mechanism 10 further comprises:

[0075] The drive motor 10-1 is fixed to the inner wall of the right side of the impact box 3 by bolts, and the drive motor 10-1 is connected to the storage battery 20.

[0076] The drive rod 10-2 is located on the upper side inside the impact box 3, and the right end of the drive rod 10-2 is riveted and fixed to the output shaft of the drive motor 10-1.

[0077] The active bevel gear 10-3 is located on the upper left side inside the impact box 3. The active bevel gear 10-3 is sleeved and riveted to the left end of the drive rod 10-2.

[0078] Driven bevel gear 10-4 is located to the left of drive bevel gear 10-3 and is meshed with drive bevel gear 10-3;

[0079] Driven rod 10-5, the middle end of which is inserted and welded to the driven bevel gear 10-4, and the front and rear ends of the driven rod 10-5 are respectively screwed to the front and rear side walls of the impact box 3 through bearings.

[0080] The drive gear 10-6 is sleeved and welded to the front end of the driven rod 10-5;

[0081] Driven rack 10-7 is located at the center of impact box 3. The left end of driven rack 10-7 moves through the left side wall of impact box 3 and is exposed on the left side of impact box 3. The right side of driven rack 10-7 is riveted and fixed to the left side wall of guide block 8. The front and rear sides of driven rack 10-7 are slidably mounted on the protrusions on the front and rear inner walls of impact box 3 through sliding grooves.

[0082] There are two electric push rods 10-8, and both electric push rods 10-8 are connected to the storage battery 20. The electric push rods 10-8 are respectively fixed to the front and rear sides of the inner top surface of the impact box 3 by bolts. The electric push rods 10-8 are located on the left side of the driven rod 10-5. The piston rods of the electric push rods 10-8 abut against the front and rear sides of the upper surface of the driven rack 10-7.

[0083] As a preferred embodiment, the lifting mechanism 17 further comprises:

[0084] Connecting rod 17-1, there are eight connecting rods 17-1, which are symmetrically arranged in pairs on the lower surface of the adjusting plate 11 and the left and right sides of the upper surface of the rotating plate 16;

[0085] The fixing plates 17-2 are eight in number, and the eight fixing plates 17-2 are riveted and fixed to the four corners of the lower surface of the adjusting plate 11 and the upper surface of the rotating plate 16 in equal quantities. The front and rear fixing plates 17-2 on the same plane are respectively screwed to the front and rear ends of the two connecting rods 17-1 on the same side through bearings.

[0086] There are sixteen half gears 17-3, and the sixteen half gears 17-3 are respectively sleeved and welded to both ends of the connecting rod 17-1. The two half gears 17-3 at the same end of the two connecting rods 17-1 on the same side are meshed.

[0087] The connecting rod 17-4 consists of sixteen rods. One end of each of the sixteen connecting rods 17-4 is respectively sleeved and riveted to both ends of the connecting rod 17-1. The connecting rods 17-4 are located on the outside of the half gear 17-3. The adjacent ends of two connecting rods 17-4 on the same vertical plane are screwed together by bolts.

[0088] Driven gear 17-5, there are two driven gears 17-5, the two driven gears 17-5 are respectively suspended on the upper side of the rotating plate 16, and the driven gear 17-5 is sleeved and welded to the middle end of the connecting rod 17-1 adjacent to the center of the rotating plate 16.

[0089] The lifting motor 17-6 is fixed to the upper surface of the rotating plate 16 by bolts, and the lifting motor 17-6 is connected to the storage battery 20.

[0090] The driving gear 17-7 is sleeved and riveted to the output shaft of the lifting motor 17-6. The driving gear 17-7 is connected to the driven gears 17-5 on both sides through a chain.

[0091] As a preferred embodiment, further, an internally threaded tube 25 is welded and fixed to the right side wall of the movable plate 5. The right end of the internally threaded tube 25 passes through the right side wall of the impact box 3 and is sleeved on the handle of the impact head 4, and is connected by a thread. During use, the position of the impact head 4 can be adjusted as needed.

[0092] As a preferred embodiment, a support frame 26 is welded and fixed to the right side of the upper surface of the rotating plate 16. The support frame 26 is arranged in an inverted "L" shape. When impacting the horizontally placed concrete, the rotating plate 16 is rotated. After the rotating plate 16 is rotated to a vertical position, the horizontal edge of the support frame 26 abuts against the upper surface of the base plate 1, thereby supporting the rotating plate 16.

[0093] The working principle of this specific embodiment is as follows: During use, the device is pushed to the construction site via the casters 2 and positioned on one side of the concrete to be tested. When testing vertically placed concrete, the lifting mechanism 17 moves the adjusting plate 11 to a suitable height. At this time, the lifting motor 17-6 is activated, driving the drive gear 17-7 to rotate. The drive gear 17-7 drives the driven gears 17-5 on both sides to rotate via a chain, which in turn drives the connecting rod 17-1 inside to rotate. The connecting rod 17-1 drives the half gears 17-3 on both sides to rotate. These half gears 17-3 drive the meshing half gears 17-3 to rotate, which in turn drives the connecting rod 17-4 above them to rotate. The two connecting rods 17-4 rotate simultaneously. When the angle changes, the distance between its other two ends also changes accordingly, thus causing the height of the adjusting plate 11 to change. The adjusting plate 11 causes the impact box 3 to change in height, and the impact box 3 causes the impact head 4 to move up and down until the impact head 4 moves to a suitable height. Then, the device is moved so that the impact head 4 abuts against the side wall of the concrete. The driving mechanism 10 drives the moving plate 5 to move to the left. At this time, the driving motor 10-1 is started. The driving motor 10-1 drives the driving rod 10-2 to rotate. The driving rod 10-2 drives the driving bevel gear 10-3 to rotate. The driving bevel gear 10-3 drives the driven bevel gear 10-4 to rotate. The driven bevel gear 10-4 drives the driving gear 10-6 to rotate through the driven rod. The driving gear 10- 6 drives the driven rack 10-7 to move to the left, which in turn drives the moving plate 5 to move to the left, so that the moving plate 5 moves to the far left. Then, the electric push rod 10-8 is activated, which pushes the driven rack 10-7 downward, causing the driven rack 10-7 to separate from the drive gear 10-6. The moving plate 5 moves rapidly to the right under the elastic force of the compression spring 7, so that the impact head 4 hits the side of the concrete, thereby achieving the effect of testing the impact resistance of the concrete. When testing horizontally placed concrete, first loosen the bolts on the rotating sleeve 22, and then start the rotating motor 19. The rotating motor 19 drives the rotating rod 21 to rotate, which in turn drives the rotating sleeves 22 at both ends to rotate, and the rotating sleeves 22 drive the rotating insert rod. Rotating rod 23 drives support plate 24 to rotate, which in turn drives rotating plate 16 to rotate until it is perpendicular to base plate 1. Then, the bolts on rotating sleeve 22 are tightened, allowing rotating sleeve 22 and rotating rod 23 to support rotating plate 16. At this point, impact head 4 is suspended on the right side of the base. Depending on the concrete thickness, positioning pin 15 is loosened, and impact box 3 is moved upwards. After moving, the device is pushed to the upper side of the concrete. Then, impact box 3 is released, and it slides downwards until impact head 4 touches the upper surface of the concrete. Positioning pin 15 is then inserted into through hole 14 and slide plate 13 to position impact box 3. During testing, moving plate 5 is driven by drive mechanism 10.After the movable plate 5 is moved upward to the appropriate position, it is released. The movable plate 5 then moves the punch head upward, causing it to impact the concrete, thus achieving the experimental effect.

[0094] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:

[0095] 1. It can be moved to the construction site, and after being moved to the construction site, the height of the impact head 4 can be adjusted to impact concrete of different heights to achieve the test effect;

[0096] 2. A rotating plate 16 is provided on the upper side of the base plate 1. The rotating plate 16 can rotate so that the impact head 4 is suspended on the right side of the base plate 1, thereby impacting the horizontally placed concrete to meet the test requirements of the horizontally placed concrete.

[0097] 3. The lower side of the impact box 3 slides on the adjustment plate 11 via the slider 12. The slide plate 13 on the adjustment plate 11 is connected to the impact box 3 via the positioning pin 15. Thus, when impacting horizontally placed concrete, the height of the impact box 3 can be adjusted according to the thickness of the concrete, which facilitates operation.

[0098] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete impact resistance testing device, comprising a base plate (1), universal wheels (2), an impact box (3) and an impact head (4), universal wheels (2) are fixed to the lower surface of the base plate (1) at the four corners, the upper side of the base plate (1) is suspended with the impact box (3), the right side wall of the impact box (3) is inserted with the impact head (4), and the right side of the impact head (4) is exposed to the right side of the impact box (3); characterized in that, It also contains: The moving plate (5) is arranged on the right side of the impact box (3), and the right side wall of the moving plate (5) is connected with the impact head (4), and the lower side of the moving plate (5) is slidably arranged in the sliding groove on the lower inner wall of the impact box (3); The guide column (6) is arranged on the lower side of the impact box (3), the left end of the guide column (6) is fixed on the inner wall of the left side of the impact box (3), and the right end of the guide column (6) is fixed on the inner wall of the right side of the impact box (3) after passing through the moving plate (5); The extrusion spring (7) is sleeved on the outer side of the guide column (6), and the left end of the extrusion spring (7) is fixed on the inner wall of the left side of the impact box (3), and the right end of the extrusion spring (7) is fixed on the left side wall of the moving plate (5); The guide block (8) is arranged in the groove on the left side of the moving plate (5), and the guide rods movably arranged in the guide block (8) are fixedly connected with the inner walls on the upper and lower sides of the groove; The reset spring (9) is sleeved on the guide column (6) on the lower side of the guide block (8), and the upper and lower ends of the reset spring (9) are fixedly connected with the inner wall on the lower side of the groove on the left side of the moving plate (5) and the bottom wall of the guide block (8) respectively; The driving mechanism (10) is arranged on the upper side of the impact box (3), and the driving mechanism (10) is connected with the guide block (8); The adjusting plate (11) is arranged on the lower side of the impact box (3); The slide block (12) is two, the slide block (12) is slidably arranged in the sliding groove on the upper surface of the adjusting plate (11); The slide plate (13) is two, the slide plate (13) is fixed on the left side of the upper surface of the adjusting plate (11), the upper side of the slide plate (13) is inserted into the sliding groove on the left side of the upper surface of the adjusting plate (11), and the left side of the sliding groove on the left side of the upper surface of the adjusting plate (11) is provided with a plurality of through holes (14), and the positioning pin (15) is inserted into the slide plate (13) after passing through the through hole (14); The rotating plate (16) is arranged on the lower side of the adjusting plate (11), and the rotating plate (16) is arranged on the upper side of the bottom plate (1); The lifting mechanism (17) is arranged between the rotating plate (16) and the adjusting plate (11); The support plate (18) is two, the lower side of the support plate (18) is fixed on the left side of the upper surface of the bottom plate (1), and the support plate (18) is arranged on the left side of the rotating plate (16), and the upper side of the support plate (18) is rotatably connected with the left side of the rotating plate (16); Rotary motor (19), the rotary motor (19) is embedded and fixed on the back of the upper surface of the bottom plate (1), the rotary motor (19) is connected with the battery (20), and the battery (20) is fixed on the center of the upper surface of the bottom plate (1); Rotary rod (21), the rear end of the rotary rod (21) is fixedly connected with the output shaft of the rotary motor (19), and the front and rear ends of the rotary rod (21) are respectively rotatably connected with the upper surface of the bottom plate (1) through the hinge seat; Rotary sleeve (22), the rotary sleeve (22) is two, the right end of the rotary sleeve (22) is fixed on the left side of the outer ring wall of the rotary rod (21) respectively; Rotary plug rod (23), the rotary plug rod (23) is two, the two rotary plug rods (23) are respectively inserted into the two rotary sleeves (22), and are connected through bolts; Supporting sheet (24), the supporting sheet (24) is two, the two supporting sheets (24) are respectively fixed on the left side of the lower surface of the rotary plate (16) respectively, the lower side of the supporting sheet (24) is abutted on the upper surface of the bottom plate (1), and the left end of the two supporting sheets (24) is rotatably connected with the rotary plug rod (23) through bolts.

2. A concrete impact resistance testing apparatus as defined in claim 1, wherein: The driving mechanism (10) comprises: Driving motor (10-1), the driving motor (10-1) is fixed on the inner wall of the right side of the impact box (3), and the driving motor (10-1) is connected with the battery (20); Driving rod (10-2), the driving rod (10-2) is arranged on the upper side in the impact box (3), and the right end of the driving rod (10-2) is fixedly connected with the output shaft of the driving motor (10-1); Driving bevel gear (10-3), the driving bevel gear (10-3) is arranged on the left upper side in the impact box (3), and the driving bevel gear (10-3) is sleeved and fixed on the left end of the driving rod (10-2); Driven bevel gear (10-4), the driven bevel gear (10-4) is arranged on the left side of the driving bevel gear (10-3), and the driven bevel gear (10-4) is arranged in mesh with the driving bevel gear (10-3); Driven rod (10-5), the middle end of the driven rod (10-5) is inserted and fixed in the driven bevel gear (10-4), and the front and rear ends of the driven rod (10-5) are rotatably connected with the front and rear side walls of the impact box (3) through bearings respectively; Driving gear (10-6), the driving gear (10-6) is sleeved and fixed on the front end of the driven rod (10-5); Driven rack (10-7), the driven rack (10-7) is arranged in the center of the impact box (3), the left end of the driven rack (10-7) is arranged to pass through the left side wall of the impact box (3) and is exposed on the left side of the impact box (3), the right side of the driven rack (10-7) is fixed on the left side wall of the guide block (8), and the front and rear sides of the driven rack (10-7) are respectively arranged to slide on the protrusions on the front and rear inner walls of the impact box (3) through the sliding grooves. Electric push rod (10-8), the electric push rod (10-8) is two, and the two electric push rod (10-8) is connected with battery (20), electric push rod (10-8) is fixed on the top surface of the impact box (3) front and back two sides respectively, and electric push rod (10-8) is set up in the left side of driven rod (10-5), the piston rod of electric push rod (10-8) is respectively resisted in the upper surface of driven rack (10-7) front and back two sides.

3. A concrete impact resistance testing apparatus as defined in claim 1, wherein: The lifting mechanism (17) comprises: Connecting rod (17-1), the connecting rod (17-1) is eight, eight connecting rod (17-1) two two symmetrical settings are in the left and right sides of the upper surface of the rotating plate (16) and the lower surface of the adjusting plate (11); Fixed plate (17-2), the fixed plate (17-2) is eight, and eight fixed plate (17-2) is equal to the four corners of the upper surface of the rotating plate (16) and the lower surface of the adjusting plate (11), and the front and back two fixed plate (17-2) of the same plane is respectively rotated and connected with the front and back two ends of the two connecting rod (17-1) on the same side; Half gear (17-3), the half gear (17-3) is sixteen, and sixteen half gear (17-3) is respectively set and fixed on the two ends of connecting rod (17-1), the two half gear (17-3) of the same side of two connecting rod (17-1) is engaged and arranged on the same end; Connecting rod (17-4), the connecting rod (17-4) is sixteen, one end of sixteen connecting rod (17-4) is respectively set and fixed on the two ends of connecting rod (17-1), and connecting rod (17-4) is arranged on the outside of half gear (17-3), the adjacent end of two connecting rod (17-4) on the same vertical plane is bolted; Driven gear (17-5), the driven gear (17-5) is two, two driven gear (17-5) is respectively suspended on the upper side of rotating plate (16), and driven gear (17-5) is set and fixed on the middle end of connecting rod (17-1) adjacent to the center of rotating plate (16) side; Lifting motor (17-6), the lifting motor (17-6) is fixed on the upper surface of rotating plate (16), and the lifting motor (17-6) is connected with battery (20); Driving gear (17-7), the driving gear (17-7) is set and fixed on the output shaft of lifting motor (17-6), and the driving gear (17-7) is connected with the two sides of driven gear (17-5) through chain.

4. The apparatus of claim 1, wherein: The right side wall of the moving plate (5) is fixed with an internally threaded pipe (25), the right end of the internally threaded pipe (25) passes through the right side wall of the impact box (3), and is set on the handle of the impact head (4), and is screwed by thread, in use, the position of the impact head (4) is adjusted as needed.

5. The apparatus of claim 1, wherein: The right side of the upper surface of the rotating plate (16) is fixed with a support frame (26) which is arranged in an inverted "L" shape, when impacting the horizontally placed concrete, the rotating plate (16) is rotated to be perpendicular, and the horizontal side of the support frame (26) is abutted on the upper surface of the bottom plate (1), so as to support the rotating plate (16).

6. The method of claim 1, wherein: In use, the device is pushed to the construction site through the universal wheel (2) and is located at one side of the concrete to be tested, when testing the vertically placed concrete, the adjusting plate (11) is driven to a suitable height through the lifting mechanism (17), until the impact head (4) is moved to a suitable height, then the device is moved, so that the impact head (4) is abutted on the side wall of the concrete, at this time, the moving plate (5) is moved to the leftmost side through the driving mechanism (10), then the driving mechanism (10) is loosened, the moving plate (5) is quickly moved to the right side under the elastic force of the compression spring (7), so that the impact head (4) is impacted on the side of the concrete, thereby achieving the effect of testing the impact resistance of the concrete, when testing the horizontally placed concrete, the bolts on the rotating sleeve (22) are loosened, then the rotating motor (19) is started, the rotating motor (19) drives the rotating rod (21) to rotate, the rotating rod (21) drives the rotating sleeve (22) at both ends to rotate, the rotating sleeve (22) drives the rotating rod (23) to rotate, the rotating rod (23) drives the support piece (24) to rotate, the support piece (24) drives the rotating plate (16) to rotate, until the rotating plate (16) is rotated to be perpendicular to the bottom plate (1), then the bolts on the rotating sleeve (22) are tightened, so that the rotating sleeve (22) and the rotating rod (23) support the rotating plate (16), at this time, the impact head (4) is suspended on the right side of the base, according to the thickness of the concrete, the positioning pin (15) is loosened, the impact box (3) is moved upward, after moving, the device is pushed to the upper side of the concrete, then the impact box (3) is loosened, the impact box (3) is slid downward, until the impact head (4) is abutted on the upper surface of the concrete, then the positioning pin (15) is inserted into the through hole (14) and the sliding plate (13), the impact box (3) is positioned, when testing, the moving plate (5) is moved through the driving mechanism (10), the impact head is moved upward to a suitable position, then the moving plate (5) is loosened, the impact head is moved by the moving plate (5), so that the impact head is impacted on the concrete, thereby achieving the testing effect.

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