Floor detection device

Abstract

The utility model relates to floor detection technical field, concretely is a floor detection device, including the bottom plate, the top left side of bottom plate all is fixedly connected with the side board, the top between two side boards is fixedly connected with the top plate, is provided with adjustable support subassembly on the bottom plate, the top middle part fixedly connected with fixed pipe of top plate, rotates and connects in fixed pipe inside rotation sleeve, inserts and set up screw rod in rotation sleeve, screw rod and rotation sleeve screw cooperation, the bottom fixed mounting of screw rod has the spoke type force sensor, the bottom fixedly connected with the mounting bracket of spoke type force sensor, the front and back end of mounting bracket all extend downward, the front and back inner wall of mounting bracket rotatably connected with the compression roller, the bottom outer wall of rotation sleeve fixedly has the worm wheel, the left side of worm wheel has the worm, and worm and worm wheel are engaged. Adopt worm wheel and worm drive mechanism drive screw rod, have the self locking characteristic, when stopping rotating the handle, the mechanism can automatically keep the current pressure, ensure the stable pressure.

Description

Technical Field

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

[0002] As an important interior decoration and functional material, the quality and performance of flooring are directly related to its safety and durability. Among them, flexural strength is one of the key mechanical indicators for measuring the quality of flooring. Flooring with insufficient flexural strength is prone to problems such as sinking, deformation, cracking or even breakage during use.

[0003] Currently, the main methods for testing the bending strength of flooring include large-scale material testing machines, simple three-point bending test frames, and subjective experience methods. However, large-scale material testing machines are usually laboratory equipment with high purchase and maintenance costs; simple three-point bending test frames are prone to load fluctuations or retraction during the application of force, making it difficult to stabilize at a specific value to observe deformation or accurately measure the destructive load; and subjective experience methods cannot provide specific force value data. Utility Model Content

[0004] The technical solution adopted by this utility model is as follows:

[0005] A floor testing device includes a base plate, with side plates fixedly connected to the top left and right sides of the base plate, and a top plate fixedly connected between the top ends of the two side plates. An adjustable support assembly is provided on the base plate. A fixing tube is fixedly connected to the top center of the top plate, with its bottom penetrating the bottom of the top plate. A rotating sleeve is rotatably connected inside the fixing tube, and a lead screw is located inside the rotating sleeve. The lead screw is threaded into the rotating sleeve and extends vertically. The bottom end of the lead screw is rotatably connected to a spoke-type force sensor. The bottom of the spoke-type force sensor is fixedly connected to the upper part of a mounting frame. The mounting frame extends front and rear, with both its front and rear ends extending downwards. A pressure roller is rotatably connected between the inner and outer walls. Guide columns are vertically fixedly connected to the top front and rear sides of the mounting frame. The guide columns extend upward through the top of the top plate and are slidably connected to the top plate. A connecting plate is fixedly connected between the top ends of the two guide columns. A lead screw passes through the connecting plate, and there is a gap between the lead screw and the connecting plate. The bottom of the rotating sleeve extends through the bottom end of the fixed tube. A worm gear is fixedly sleeved on the bottom outer wall of the rotating sleeve. A worm is located on the left side of the worm gear and meshes with the worm gear. Fixed seats are rotatably connected to the front and rear outer walls of the worm. The fixed seats are fixedly connected to the bottom of the top plate. A throttle is fixedly connected to the front end of the worm.

[0006] The adjustable support assembly includes guide rails, two of which are fixedly connected to the front and rear sides of the base plate. The top of the base plate has two connecting rods, and the front and rear ends of the two connecting rods are fixedly connected to support seats. The bottom of the opposite side walls of the two opposing support seats are fixedly connected to sliders, which slide and engage with the guide rails. A support roller is fixedly connected between the tops of the two support seats. Limit sleeves are fitted on the outer walls of both ends of the support roller. Locking screws penetrate the top of the outer wall of the limit sleeves and are threadedly connected to the limit sleeves. The bottom of the locking screws abuts against the outer wall of the support roller.

[0007] The bottom of the front side wall of the two front support seats is threaded with locking bolts. The rear end of the locking bolts extends through the rear outer wall of the support seat and abuts against the outer wall of the base plate.

[0008] The exposed part of the guide rail is fitted with a bellows, and the two ends of the bellows are fixedly connected to the outer wall of the slider and the two ends of the guide rail, respectively.

[0009] The beneficial effects of this utility model are as follows:

[0010] The screw is driven by a worm gear transmission mechanism, which has a self-locking characteristic. When the throttle is stopped, the mechanism can automatically maintain the current pressure and will not reverse or loosen due to load, ensuring stable pressure and accurate and reliable test results.

[0011] The spoke-type force sensor is directly integrated into the force application path, which can measure the actual pressure applied to the floor in real time with high precision. The measurement results directly reflect the load size.

[0012] The support base can slide back and forth on the guide rail via a slider, making it easy to adjust the distance between the two support rollers to accommodate flooring of different lengths. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Rear bottom view structural diagram;

[0015] Figure 3 for Figure 1 Rear view;

[0016] Figure 4 for Figure 3 Cross-sectional view at point AA;

[0017] Figure 5 for Figure 3 Cross-sectional view at point BB.

[0018] In the diagram: 1. Base plate; 2. Guide rail; 3. Support base; 4. Slider; 5. Connecting rod; 6. Support roller; 7. Limit sleeve; 8. Locking screw; 9. Locking bolt; 10. Bellows; 11. Side plate; 12. Top plate; 13. Fixed tube; 14. Rotating sleeve; 15. Lead screw; 16. Spoke-type force sensor; 17. Mounting bracket; 18. Pressure roller; 19. Guide column; 20. Connecting plate; 21. Worm gear; 22. Worm; 23. Fixed base; 24. Throttle. Detailed Implementation

[0019] See attached document Figure 1-5 A floor testing device includes a base plate 1, with side plates 11 fixedly connected to the top left and right sides of the base plate 1, and a top plate 11 fixedly connected between the top ends of the two side plates 11. An adjustable support assembly is provided on the base plate 1. A fixing tube 13 is fixedly connected to the top center of the top plate 12, with the bottom of the fixing tube 13 penetrating the bottom of the top plate 12. A rotating sleeve 14 is rotatably connected inside the fixing tube 12, and a lead screw 15 is located inside the rotating sleeve 14. The lead screw 15 is threadedly engaged with the rotating sleeve 14, and extends vertically. The bottom end of the lead screw 15 is rotatably connected to a spoke-type force sensor 16. The bottom of the spoke-type force sensor 16 is fixedly connected to the upper part of a mounting frame 17, which extends front and rear. Both the front and rear ends of the mounting frame 17 extend downwards. The front and rear inner walls of the mounting frame 17... A pressure roller 18 is rotatably connected between the two parts. Guide columns 19 are vertically fixed to the front and rear sides of the top of the mounting frame 17. The guide columns 19 extend upward through the top of the top plate 12 and are slidably connected to the top plate 12. A connecting plate 20 is fixedly connected between the top ends of the two guide columns 19. A lead screw 15 passes through the connecting plate 20 and there is a gap between the lead screw 15 and the connecting plate 20. The bottom of the rotating sleeve 14 extends through the bottom end of the fixed tube 13. A worm wheel 21 is fixedly sleeved on the bottom outer wall of the rotating sleeve 14. A worm 22 is located on the left side of the worm wheel 21 and meshes with the worm wheel 21. Fixed seats 23 are rotatably connected to the front and rear outer walls of the worm 22 and are fixedly connected to the bottom of the top plate 12. A throttle 24 is fixedly connected to the front end of the worm 22.

[0020] The adjustable support assembly includes guide rails 2, two guide rails 2 are fixedly connected to the front and rear side edges of the base plate 1 respectively, the top of the base plate 1 has two connecting rods 5, the front and rear ends of the two connecting rods 5 are fixedly connected to support seats 3, the bottom of the opposite side walls of the two opposite support seats 3 are fixedly connected to sliders 4, the sliders 4 are slidably engaged with the guide rails 2, the top of the two support seats 3 are fixedly connected to a support roller 6, the outer walls of both ends of the support roller 6 are fitted with limit sleeves 7, the locking screws 8 penetrate through the top of the outer wall of the limit sleeves 7, the locking screws 8 are threadedly connected to the limit sleeves 7, and the bottom of the locking screws 8 abuts against the outer wall of the support roller 6.

[0021] The bottom of the front side wall of the two front support seats 3 are threaded with locking bolts 9. The rear end of the locking bolts 9 extends through the rear outer wall of the support seat 3 and abuts against the outer wall of the base plate 1.

[0022] The exposed part of the guide rail 2 is fitted with a bellows 10, and the two ends of the bellows 10 are fixedly connected to the outer wall of the slider 4 and the two ends of the guide rail 2, respectively.

[0023] The spoke-type force sensor 16 is an existing technology device. The spoke-type force sensor 16 connects to an external device via its own cable to display values. This utility model only protects the mechanical structure part, and the related auxiliary external equipment is not within the scope of protection of this utility model.

[0024] Working principle:

[0025] The floor to be tested is placed flat on the two support rollers 6 of the device.

[0026] Based on the width of the floor, slide the two pairs of support seats 3 back and forth along the guide rail 2 so that the support roller 6 is located in a suitable support position under the floor.

[0027] Tighten the locking bolts 9 on the front support 3 so that its rear end abuts against the outer wall of the base plate 1, thereby fixing the support 3 in the adjusted position.

[0028] The limiting sleeves 7 at both ends of the sliding support roller 6 are used to make their inner sides fit tightly against the side of the floor, restricting the left and right movement of the floor. Tighten the locking screws 8 so that the bottom of the screws presses against the outer wall of the support roller 6, thereby firmly locking the limiting sleeves 7 onto the support roller 6 and completing the clamping and fixing of the floor.

[0029] Ensure that the pressure roller 18 is located at the center of the floor to be tested or at the specific location where force needs to be applied.

[0030] The operator rotates the handle 24, which drives the worm 22 to rotate. The worm 22 drives the worm wheel 21 that meshes with it to rotate. The worm wheel 21 drives the rotating sleeve 14, which is fixed in its inner hole, to rotate inside the fixed tube 13.

[0031] Since the lead screw 15 and the rotating sleeve 14 are threaded together, and the lead screw 15 is restricted from rotating by the lower spoke-type force sensor 16 and mounting bracket 17, as well as the upper guide post 19 and connecting plate 20, the rotation of the rotating sleeve 14 forces the lead screw 15 to move downward in a straight line.

[0032] The lead screw 15 pushes the spoke-type force sensor 16 downward, and the spoke-type force sensor 16 pushes the mounting bracket 17 and the pressure roller 18 fixed thereon to move downward.

[0033] The pressure roller 18 gradually contacts and presses downward on the center of the floor placed on the support roller 6, applying vertical downward pressure to the floor.

[0034] The spoke-type force sensor 16 detects the pressure value applied to the floor by the pressure roller 18 in real time.

[0035] The operator continuously and slowly rotates the throttle 24, which continuously and steadily increases the pressure of the pressure roller 18 on the floor through the worm gear mechanism.

[0036] At the same time, observe the condition of the floor. When the floor bends and deforms under continuously increasing pressure until it reaches its limit, such as breaking, producing obvious plastic deformation, or reaching the specified deflection, record the pressure value displayed by the spoke-type force sensor 16 at this time. This value represents the bending strength of the floor.

[0037] After the test is completed, rotate the handle 24 in the opposite direction. The worm 22 drives the worm wheel 21 and the rotating sleeve 14 to rotate in the opposite direction. The rotation of the rotating sleeve 14 forces the lead screw 15 to move upward.

[0038] The lead screw 15 drives the spoke-type force sensor 16, the mounting bracket 17 and the pressure roller 18 to lift upwards and away from the floor surface.

[0039] Loosen the locking screw 8, slide the limit sleeve 7 away from the side of the floor, and remove the tested floor.

Claims

1. A floor testing device, comprising a base plate (1), wherein side plates (11) are fixedly connected to the top left and right sides of the base plate (1), and a top plate (12) is fixedly connected between the top ends of the two side plates (11), characterized in that, An adjustable support assembly is provided on the base plate (1). A fixed tube (13) is fixedly connected to the top center of the top plate (12). The bottom of the fixed tube (13) penetrates the bottom of the top plate (12). A rotating sleeve (14) is rotatably connected inside the fixed tube (13). A lead screw (15) is provided inside the rotating sleeve (14). The lead screw (15) is threadedly engaged with the rotating sleeve (14). The lead screw (15) extends up and down. The bottom end of the lead screw (15) is rotatably connected to a spoke-type force sensor (16). The bottom of the spoke-type force sensor (16) is fixedly connected to the upper part of the mounting frame (17). The mounting frame (17) extends forward and backward. The front and rear ends of the mounting frame (17) both extend downward. A pressure roller (18) is rotatably connected between the front and rear inner walls of the mounting frame (17). Guide columns are vertically fixedly connected to the front and rear sides of the top of the mounting frame (17). (19) The guide post (19) extends upward through the top of the top plate (12). The guide post (19) and the top plate (12) are slidably connected. A connecting plate (20) is fixedly connected between the top ends of the two guide posts (19). The screw (15) passes through the connecting plate (20). There is a gap between the screw (15) and the connecting plate (20). The bottom of the rotating sleeve (14) extends through the bottom end of the fixed tube (13). A worm wheel (21) is fixedly sleeved on the bottom outer wall of the rotating sleeve (14). A worm (22) is on the left side of the worm wheel (21). The worm (22) meshes with the worm wheel (21). Fixed seats (23) are rotatably connected to the front and rear outer walls of the worm (22). Fixed seats (23) are fixedly connected to the bottom of the top plate (12). A throttle (24) is fixedly connected to the front end of the worm (22).

2. A floor testing device, characterized in that, The adjustable support assembly includes guide rails (2), two guide rails (2) are fixedly connected to the front and rear sides of the base plate (1) respectively, the top of the base plate (1) has two connecting rods (5), the front and rear ends of the two connecting rods (5) are fixedly connected to support seats (3), the bottom of the opposite side walls of the two opposite support seats (3) are fixedly connected to sliders (4), the sliders (4) and guide rails (2) are slidably engaged, the top of the two support seats (3) are fixedly connected to a support roller (6), the outer walls of both ends of the support roller (6) are fitted with limit sleeves (7), the locking screws (8) penetrate the top of the outer wall of the limit sleeves (7), the locking screws (8) are threadedly connected to the limit sleeves (7), and the bottom of the locking screws (8) abuts against the outer wall of the support roller (6).

3. The floor testing device according to claim 2, characterized in that, The bottom of the front side wall of the two front support seats (3) is threaded with locking bolts (9). The rear end of the locking bolts (9) passes through the rear outer wall of the support seat (3) and the rear end of the locking bolts (9) abuts against the outer wall of the base plate (1).

4. A floor testing device according to claim 2, characterized in that, The exposed part of the guide rail (2) is fitted with a bellows (10), and the two ends of the bellows (10) are fixedly connected to the outer wall of the slider (4) and the two ends of the guide rail (2), respectively.

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