Floor impact testing device

Abstract

The utility model relates to the technical field of impact test, concretely relates to a floor impact test device, including the bottom plate, the clamping mechanism is provided with on the bottom plate top, still include test mechanism, test mechanism is located clamping mechanism top, test mechanism includes the test structure for to the floor impact test, the lifting structure for to the test structure lift, the inside bottom end slide of lower pressure cylinder is installed with the impact cone, and the switching structure for the switching of the pressure area when the floor impact test is established between lower pressure cylinder and press cylinder. Advantageous effects: through the constant impact of the impact cone in the test structure to the floor, the ability of the floor to resist impact is tested, and then the impact of different contact surfaces to the floor is switched by using the switching structure to test the impact resistance of the floor under different contact surfaces, the test range of the floor is expanded, the damage of different impact objects to the floor can be accurately simulated, the test data is more in line with the actual use scene, and the accuracy of the test data is improved.

Description

Technical Field

[0001] This utility model relates to the field of impact testing technology, and in particular to a floor impact testing device. Background Technology

[0002] As a common building material, flooring is subject to impact resistance testing, which is a common and necessary test to verify its physical quality. Specifically, it refers to the ability of a sample to resist impact loads.

[0003] By comparing a high-efficiency floor impact resistance comprehensive testing device with patent publication number CN217931212U, it can be found that the test floor can be tested by means of a hammer and hammer body. However, in actual use, the floor may be subjected to impacts from different contact surfaces. The contact surfaces of the impacting objects are diverse, so the test data obtained from the floor test may not be consistent with the impact resistance effect produced by the floor in actual use, which reduces the accuracy of the test results and makes them not very reliable. Utility Model Content

[0004] The purpose of this invention is to provide a floor impact testing device in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A floor impact testing device includes a base plate, a clamping mechanism disposed above the base plate, and a testing mechanism for conducting floor impact tests, the testing mechanism being located above the clamping mechanism.

[0007] The testing facility includes a test structure for impact testing of the floor and a lifting structure for raising and lowering the test structure.

[0008] The test structure includes a pressure cylinder that is movably mounted above the base plate. An impact cone is slidably installed at the bottom of the pressure cylinder. A compression spring connects the impact cone and the pressure cylinder. A pressing cylinder is slidably installed at the top of the pressure cylinder. A pressing hydraulic cylinder is provided between the pressing cylinder and the pressure cylinder. A pressing pad is installed at the center of the bottom end of the pressing cylinder. A switching structure is provided between the pressure cylinder and the pressing cylinder for switching the pressure area during the floor impact test.

[0009] Preferably, the switching structure includes multiple pressing columns slidably disposed at the bottom edge of the lower pressing cylinder, the multiple pressing columns being distributed around the center of the lower pressing cylinder, a pressing spring connecting the pressing columns and the lower pressing cylinder, an impact plate fixed between the bottom ends of the multiple pressing columns, the impact plate being annular, multiple sliding seats slidably installed at the bottom edge of the pressing cylinder, the multiple sliding seats being distributed around the center of the pressing cylinder, a pre-tightening spring connecting the sliding seats and the pressing cylinder, a pressing plate slidably installed at the upper end inside the pressing cylinder, the pressing plate being conical with the small end facing downwards, a pressing hydraulic cylinder being provided between the pressing plate and the pressing cylinder, the end of the sliding seat near the pressing plate being inclined, the bottom end of the sliding seat being lower than the bottom end of the pressing pad, and an avoidance groove being provided at the bottom end inside the lower pressing cylinder near the lower part of the sliding seat.

[0010] Preferably, the lifting structure includes two symmetrically arranged support frames positioned above the base plate. A lifting plate is slidably installed between the two support frames. A lifting hydraulic cylinder is provided between the lifting plate and the support frames. A winding reel is rotatably installed at the center of the lifting plate. A winding motor is installed at the rotating end of the winding reel. The output end of the winding motor is fixed to the rotating end of the winding reel via a coupling. Two symmetrically arranged slide rails are fixed at the bottom of the lifting plate. Sliding blocks are slidably installed inside the slide rails. A connecting plate is fixed between the two sliding blocks. A lower electromagnet is installed at the upper end of the connecting plate. An upper electromagnet is installed above the lower electromagnet. A suspension rope is connected between the top of the upper electromagnet and the winding reel. A lower pressure cylinder is fixedly connected to the lifting plate.

[0011] Preferably, the clamping mechanism includes two support plates symmetrically arranged front and back on the top of the base plate. The two support plates are rotatably mounted on one end close to each other. A clamping pad is slidably mounted on the side wall of the rotating frame. A clamping hydraulic cylinder is installed between the clamping pad and the rotating frame. A plate is provided between the bottom ends of the two rotating frames.

[0012] Preferably, a rotary motor is installed at the rotating end of the rotating frame, and the output end of the rotary motor is fixed to the rotating end of the rotating frame via a coupling.

[0013] Preferably, the support plate has two symmetrically arranged sliding grooves on both the left and right sides, with pads slidably installed in the sliding grooves and lead screws rotatably installed in the sliding grooves. A rotating handle is fixed to the end of the lead screw, and the pads are threadedly connected to the lead screw. A fixing plate is fixed between the two pads on the same side.

[0014] Preferably, the pad is made of rubber.

[0015] Compared with existing technologies, the beneficial effects are as follows:

[0016] The impact resistance of the floor is tested by continuously impacting it with an impact cone within the test structure. Then, by using a switching structure to switch between different contact surfaces to impact the floor, the impact resistance of the floor under different contact surfaces is tested, thus expanding the test range of the floor. It can accurately simulate the damage to the floor caused by different impact objects, and the test data is more in line with actual use scenarios, thus improving the accuracy of the test data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a spatial perspective view of the floor impact testing device described in this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping mechanism of the floor impact testing device described in this utility model;

[0020] Figure 3 This is a schematic diagram of the lifting structure of the floor impact testing device described in this utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the pressure cylinder of the floor impact testing device described in this utility model;

[0022] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0023] The annotations in the attached figures are explained as follows:

[0024] 100. Base plate; 201. Support frame; 202. Lifting hydraulic cylinder; 203. Lifting plate; 204. Rewinding reel; 205. Rewinding motor; 206. Slide rail; 207. Slider; 208. Connecting plate; 209. Lower pressure cylinder; 210. Lower electromagnet; 211. Upper electromagnet; 212. Lifting rope; 213. Lower pressure hydraulic cylinder; 214. Pressing cylinder; 215. Pressing hydraulic cylinder; 2 16. Pressing plate; 217. Sliding seat; 218. Pressing column; 219. Impact plate; 220. Impact cone; 221. Clearance groove; 222. Pressing pad; 301. Support plate; 302. Rotating frame; 303. Rotary motor; 304. Clamping hydraulic cylinder; 305. Clamping pad; 306. Plate; 307. Slide groove; 308. Pad block; 309. Lead screw; 310. Fixing plate. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal connection of two components. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known control device such as a computer. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-5 As shown, a floor impact testing device includes a base plate 100, a clamping mechanism for clamping and fixing the floor, the clamping mechanism being located above the base plate 100, and a testing mechanism for impact testing the floor, the testing mechanism being located above the clamping mechanism.

[0028] In this embodiment: the clamping mechanism includes two symmetrically arranged support plates 301 positioned above the base plate 100. A rotating frame 302 is rotatably mounted on one end of each support plate 301, close to each other. A rotary motor 303 is mounted on the rotating end of the rotating frame 302, and the output end of the rotary motor 303 is fixed to the rotating end of the rotating frame 302 via a coupling. A clamping pad 305 is slidably mounted on the side wall of the rotating frame 302. A clamping hydraulic cylinder 304 is installed between the clamping pad 305 and the rotating frame 302. A plate 306 is provided between the bottom ends of the two rotating frames 302. Two symmetrically arranged sliding grooves 307 are provided on both the left and right sides of the support plate 301. A pad 308 is slidably mounted in the sliding groove 307, and a lead screw 309 is rotatably mounted in the sliding groove 307. A rotating handle is fixed to the end of the lead screw 309. The pad 308 is threadedly connected to the lead screw 309 and is made of rubber. A fixing plate 310 is fixed between the two pads 308 on the same side.

[0029] In this embodiment, the testing mechanism includes a testing structure for impact testing of the floor and a lifting structure for raising and lowering the testing structure.

[0030] The lifting structure includes two symmetrically arranged support frames 201 positioned above the base plate 100. A lifting plate 203 is slidably installed between the two support frames 201. A lifting hydraulic cylinder 202 is provided between the lifting plate 203 and the support frames 201. A winding reel 204 is rotatably installed at the center of the lifting plate 203. A winding motor 205 is installed at the rotating end of the winding reel 204. The output end of the winding motor 205 is fixed to the rotating end of the winding reel 204 via a coupling. Two symmetrically arranged slide rails 206 are fixed at the bottom of the lifting plate 203. A slider 207 is slidably installed inside the slide rails 206. A connecting plate 208 is fixed between the two sliders 207. A lower electromagnet 210 is installed at the upper end of the connecting plate 208. An upper electromagnet 211 is provided above the lower electromagnet 210. A suspension rope 212 is connected between the top of the upper electromagnet 211 and the winding reel 204.

[0031] The test structure includes a pressure cylinder 209 located at the bottom of the connecting plate 208. An impact cone 220 is slidably installed at the bottom of the pressure cylinder 209. A compression spring connects the impact cone 220 and the pressure cylinder 209. A pressing cylinder 214 is slidably installed at the top of the pressure cylinder 209. A pressing hydraulic cylinder 213 is provided between the pressing cylinder 214 and the pressure cylinder 209. A pressing pad 222 is installed at the center of the bottom of the pressing cylinder 214. A switching structure is provided between the pressure cylinder 209 and the pressing cylinder 214 for switching the pressure area during the floor impact test.

[0032] The switching structure includes multiple pressing posts 218 slidably disposed at the bottom edge of the lower pressing cylinder 209, the multiple pressing posts 218 being distributed around the center of the lower pressing cylinder 209, a pressing spring connecting the pressing posts 218 to the lower pressing cylinder 209, an impact plate 219 fixed between the bottom ends of the multiple pressing posts 218, the impact plate 219 being annular, multiple sliding seats 217 slidably mounted at the bottom edge of the pressing cylinder 214, the multiple sliding seats 217 being distributed around the center of the pressing cylinder 214, a pre-tension spring connecting the sliding seats 217 to the pressing cylinder 214, and a pressing disc 216 slidably mounted at the upper end inside the pressing cylinder 214, the pressing disc 216 being conical with the smaller end facing downwards. A pressing hydraulic cylinder 215 is provided between the pressing cylinder 214 and the pressing cylinder 215. The end of the sliding seat 217 near the pressing plate 216 is inclined. The bottom of the sliding seat 217 is lower than the bottom of the pressing pad 222. An avoidance groove 221 is provided at the bottom of the lower pressing cylinder 209 near the lower part of the sliding seat 217. The impact resistance of the floor is tested by the continuous impact of the impact cone 220 inside the test structure on the floor. Then, the switching structure is used to switch the impact of different contact surfaces on the floor to test the impact resistance of the floor under different contact surfaces, thereby expanding the test range of the floor. It can accurately simulate the damage of different impact objects to the floor, and the test data is more in line with the actual use scenario, thus improving the accuracy of the test data.

[0033] Working principle: First, the plate 306 to be tested is placed between the bottom of the two rotating frames 302. Then, the clamping hydraulic cylinder 304 is activated to drive the clamping pad 305 to press down, so that the clamping pad 305 clamps and fixes the plate 306. Then, the lead screws 309 on both sides are rotated to drive the pads 308 on both sides to move closer to the plate 306, supporting the two sides of the plate 306 and strengthening the stability of the plate 306. The rotating frame 302 is driven to rotate by the rotary motor 303, so that the plate 306 in the clamp can be rotated to realize the impact test of the plate 306 at different angles.

[0034] Then, the hydraulic cylinder 213 is activated to move the pressing cylinder 214 downward, causing the pressing pad 222 at the bottom of the pressing cylinder 214 to gradually move downward. The pressing pad 222 presses against the upper end of the impact cone 220, causing the impact cone 220 to move downward. Then, the winding motor 205 is activated to rotate the winding reel 204, unwinding the lifting rope 212. This moves the upper electromagnet 211 above the lower electromagnet 210 at the upper end of the connecting plate 208. Then, the lower electromagnet 210 and the upper electromagnet 211 are energized, causing both to... The magnet is generated, causing the two to adhere tightly together. Then, the winding reel 204 is reversed, driving the suspension rope 212 to pull the connecting plate 208 upward, which in turn moves the lower pressure cylinder 209 upward. When it reaches the preset height, the lower electromagnet 210 and the upper electromagnet 211 are de-energized, and the two lose their magnetism and separate from each other. The lower pressure cylinder 209 falls rapidly downward under its own weight, and the falling impact cone 220 impacts the surface of the plate 306 to test the impact resistance of the plate 306.

[0035] To achieve impact on the plate 306 from different contact objects, the pressing hydraulic cylinder 215 is activated, causing the pressing plate 216 to move downwards. As the pressing plate 216 moves downwards, it compresses multiple sliding seats 217, causing them to move away from the center of the pressing plate 216. This moves the sliding seats 217 directly above the pressing column 218. Then, as the pressing cylinder 214 continues to press down, the bottom of the sliding seats 217 will press against the top of the pressing column 218 first, causing the impact plate 219 to move downwards. At this point, the impact... The bottom of the plate 219 is lower than the bottom of the impact cone 220. Therefore, when the two fall simultaneously, the impact plate 219 will contact the surface of the board 306 first, thereby realizing the impact of the impact plate 219 on the board 306 and realizing the impact resistance of the board 306 under the impact of the impact plate 219. This is used to test the impact resistance of the floor under different contact surfaces, expand the test range of the floor, accurately simulate the damage of different impact objects to the floor, and make the test data more in line with the actual use scenario, thus improving the accuracy of the test data.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A floor impact testing device, comprising a base plate (100), wherein a clamping mechanism is disposed above the base plate (100), characterized in that: It also includes a testing mechanism for floor impact testing, the testing mechanism being located above the clamping mechanism; The testing mechanism includes a testing structure for impact testing of the floor and a lifting structure for raising and lowering the testing structure. The test structure includes a pressure cylinder (209) that is movably mounted above the base plate (100). An impact cone (220) is slidably installed at the bottom of the pressure cylinder (209). A compression spring is connected between the impact cone (220) and the pressure cylinder (209). A pressing cylinder (214) is slidably installed at the top of the pressure cylinder (209). A pressing hydraulic cylinder (213) is provided between the pressing cylinder (214) and the pressure cylinder (209). A pressing pad (222) is installed at the center of the bottom end of the pressing cylinder (214). A switching structure is provided between the pressure cylinder (209) and the pressing cylinder (214) for switching the pressure area during the floor impact test.

2. The floor impact testing device according to claim 1, characterized in that: The switching structure includes a plurality of pressing posts (218) slidably disposed at the bottom edge of the lower pressing cylinder (209). The plurality of pressing posts (218) are distributed around the center of the lower pressing cylinder (209). A pressing spring is connected between the pressing posts (218) and the lower pressing cylinder (209). An impact plate (219) is fixed between the bottom ends of the plurality of pressing posts (218). The impact plate (219) is annular. A plurality of sliding seats (217) are slidably installed at the bottom edge of the pressing cylinder (214). The plurality of sliding seats (217) are distributed around the center of the pressing cylinder (214). (217) is connected to the pressing cylinder (214) by a pre-tightening spring. The pressing cylinder (214) has a pressing plate (216) slidably installed at the upper end. The pressing plate (216) is a cone with the small end facing down. A pressing hydraulic cylinder (215) is provided between the pressing plate (216) and the pressing cylinder (214). The sliding seat (217) is inclined at the end near the pressing plate (216). The bottom of the sliding seat (217) is lower than the bottom of the pressing pad (222). The bottom of the lower pressing cylinder (209) has an avoidance groove (221) near the lower part of the sliding seat (217).

3. The floor impact testing device according to claim 2, characterized in that: The lifting structure includes two symmetrically arranged support frames (201) above the base plate (100). A lifting plate (203) is slidably installed between the two support frames (201). A lifting hydraulic cylinder (202) is provided between the lifting plate (203) and the support frames (201). A winding reel (204) is rotatably installed at the center of the lifting plate (203). A winding motor (205) is installed at the rotating end of the winding reel (204). The output end of the winding motor (205) is fixed to the rotating end of the winding reel (204) through a coupling. The bottom end of the lifting plate (203) is fixed with two slide rails (206) symmetrically arranged in the left and right directions. A slider (207) is slidably installed inside the slide rail (206). A connecting plate (208) is fixed between the two sliders (207). A lower electromagnet (210) is installed on the upper end of the connecting plate (208). An upper electromagnet (211) is provided above the lower electromagnet (210). A hanging rope (212) is connected between the top end of the upper electromagnet (211) and the winding reel (204). The lower pressure cylinder (209) is fixedly connected to the lifting plate (203).

4. The floor impact testing device according to claim 3, characterized in that: The clamping mechanism includes two support plates (301) arranged symmetrically in front and behind each other above the base plate (100). A rotating frame (302) is rotatably mounted on one end of each of the two support plates (301) close to each other. A clamping pad (305) is slidably mounted on the side wall of the rotating frame (302). A clamping hydraulic cylinder (304) is installed between the clamping pad (305) and the rotating frame (302). A plate (306) is provided between the bottom ends of the two rotating frames (302).

5. The floor impact testing device according to claim 4, characterized in that: A rotary motor (303) is installed on the rotating end of the rotating frame (302), and the output end of the rotary motor (303) is fixed to the rotating end of the rotating frame (302) through a coupling.

6. The floor impact testing device according to claim 5, characterized in that: The support plate (301) has two symmetrically arranged sliding grooves (307) on both the left and right sides. A pad (308) is slidably installed in the sliding groove (307). A lead screw (309) is rotatably installed in the sliding groove (307). A rotating handle is fixed at the end of the lead screw (309). The pad (308) is threadedly connected to the lead screw (309). A fixing plate (310) is fixed between the two pads (308) on the same side.

7. The floor impact testing device according to claim 6, characterized in that: The pad (308) is made of rubber.

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