CN216594609U

CN216594609U - Fall floor hardness calibrating device

Info

Publication number: CN216594609U
Application number: CN202123157190.2U
Authority: CN
Inventors: 李华国
Original assignee: Chongqing Jiguanghang Testing Technology Co ltd
Current assignee: Chongqing Jiguanghang Testing Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-24
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a falling floor hardness calibration device which comprises four support legs, wherein the tops of the four support legs are provided with adjusting mechanisms, the tops of the adjusting mechanisms are provided with lifting mechanisms, positioning mechanisms are arranged below the lifting mechanisms, each adjusting mechanism comprises a first annular seat, a second annular seat and a third annular seat, the tops of the first annular seats are fixedly connected to the tops of the four support legs, the top of each first annular seat is connected with the bottom of the corresponding second annular seat in a sliding mode through a sliding slideway, and the top of each second annular seat is connected with the bottom of the corresponding third annular seat in a sliding mode through a sliding slideway; the lifting mechanism is moved to the upper part of the positioning mechanism through the adjusting mechanism, and the required measuring position of the device can be accurately positioned under the matching use of the positioning mechanism, so that the deviation of the required measuring position is effectively prevented, and the precision of the measured data is reduced.

Description

Fall floor hardness calibrating device

Technical Field

The utility model relates to the technical field of hardness measurement, in particular to a falling floor hardness calibration device.

Background

The falling floor is a simulated real floor and is used for testing whether an article falls on the floor to generate structural damage or not and the influence caused by the damage, before the falling floor is subjected to a falling test, a hardness measurement test is generally carried out, the conventional device for measuring the hardness of the falling floor mainly comprises a handheld rubber hardness tester and a rubber hardness measurement system, and Chinese patent (CN208537326UGO) discloses a falling bottom plate hardness calibration device which can measure a bottom plate without cutting a floor sample and is convenient and quick to operate; secondly, the force application direction is determined by erecting a support, and pressure is applied by using a weight with standard mass, so that the force application direction is ensured to be vertical to a falling floor, the force application size can be accurately controlled, the force application size in multiple times of measurement is ensured to be equal, and the accuracy of the falling floor hardness measurement is improved; in addition, due to light weight, the calibration device can not slide on a slightly inclined falling floor, so that the calibration device can be normally used and has high applicability.

However, when the surface hardness of a certain floor position needs to be measured, the position of the whole device moves in the process of installing the rubber hardness tester, the position of a measuring point deviates, and the measuring precision cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drop floor hardness calibration device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a falling floor hardness calibration device comprises four supporting legs, wherein adjusting mechanisms are arranged at the tops of the four supporting legs, lifting mechanisms are arranged at the tops of the adjusting mechanisms, positioning mechanisms are arranged below the lifting mechanisms, each adjusting mechanism comprises a first annular seat, a second annular seat and a third annular seat, the top of the first annular seat is connected with the bottom of the second annular seat in a sliding mode through a sliding slide way, and the top of the second annular seat is connected with the bottom of the third annular seat in a sliding mode through a sliding slide way;

the lifting mechanism comprises a portal frame, a cross rod and a connecting rod, the portal frame is fixedly connected to the inner ring side wall of the third annular seat, the inner side surface of the portal frame is connected with the two ends of the cross rod in a sliding mode through sliding rail sliders, the connecting rod is fixedly connected to the bottom of the cross rod, and the lower end of the connecting rod is fixedly connected with a hardness tester through a bolt;

the positioning mechanism comprises a positioning disc, wherein the top of the positioning disc is fixedly connected with two telescopic rods, namely a contact block A and a contact block B, and the top of each telescopic rod is fixedly connected with the contact block A and the contact block B.

As further preferable in the present technical solution: two slots matched with the top ends of the two telescopic rods are formed in the bottom of the portal frame, two magnets are fixedly connected to the tops of the inner sides of the slots, and the surfaces of the magnets are fixedly connected with conduction blocks.

As further preferable in the present technical solution: the top of the first annular seat is fixedly connected to the tops of the four supporting legs, the top of the first annular seat is fixedly connected with two first bearing seats and two second bearing seats, a first lead screw and a second lead screw are respectively connected between the two first bearing seats and the two second bearing seats in a rotating mode through bearings, and the surfaces of the first lead screw and the second lead screw are respectively connected with one sides of the second annular seat and one side of the third annular seat through lead screw nuts.

As further preferable in the present technical solution: the top of portal frame is rotated through the bearing and is connected with the third lead screw, third lead screw surface and horizontal pole threaded connection, the top fixedly connected with third carousel of third lead screw, the one end of first lead screw and second lead screw is fixedly connected with first carousel and second carousel respectively.

As further preferable in the present technical solution: the bottom fixedly connected with a plurality of sucking disc of positioning disk, battery containing storehouse has been seted up at the top of positioning disk, the inside fixedly connected with battery in battery containing storehouse, the fixed surface of telescopic link is connected with the pilot lamp.

As further preferable in the present technical solution: the positive pole of output of battery and the anodal electric connection of input of pilot lamp, the output negative pole and the contact block B electric connection of battery, the input negative pole electric connection of contact block A and pilot lamp.

As a further preferred aspect of the present invention: and the surfaces of the first rotary table, the second rotary table and the third rotary table are all in threaded connection with locking bolts.

Compared with the prior art, the utility model has the beneficial effects that: after the position to be measured is selected, the positioning mechanism is placed at a required measuring point, a plurality of suckers are fixedly connected to the bottom of the positioning disc, the suckers are adsorbed on the surface of a floor, a good fixing effect can be achieved on the positioning mechanism, the positioning disc is prevented from being deviated, the measured position is caused to move, the measured deviation is caused, the lifting mechanism is moved to the position above the positioning mechanism through the adjusting mechanism, under the matched use of the positioning mechanism, the required measured position of the device can be accurately positioned, and the condition that the precision of measured data is reduced due to the fact that the required measured position is caused to deviate is effectively prevented.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a perspective view of a positioning plate according to the present invention;

FIG. 4 is a schematic view of the structure of the area A in FIG. 2 according to the present invention.

In the figure: 1. a support leg; 2. a first annular seat; 3. a second annular seat; 4. a third annular seat; 5. a gantry; 6. a cross bar; 7. a connecting rod; 8. a first bearing housing; 9. a second bearing housing; 10. a first lead screw; 11. a second lead screw; 12. a first turntable; 13. a second turntable; 14. a third screw rod; 15. a third turntable; 16. positioning a plate; 17. a telescopic rod; 18. a suction cup; 19. a slot; 20. a magnet; 21. a conducting block; 22. a contact block A; 23. an indicator light; 24. a battery storage compartment; 25. locking the bolt; 26. a hardness meter; 27. and contact block B.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a falling floor hardness calibration device comprises four support legs 1, wherein the tops of the four support legs 1 are provided with adjusting mechanisms, the tops of the adjusting mechanisms are provided with lifting mechanisms, positioning mechanisms are arranged below the lifting mechanisms, each adjusting mechanism comprises a first annular seat 2, a second annular seat 3 and a third annular seat 4, the tops of the first annular seats 2 are fixedly connected to the tops of the four support legs 1, the tops of the first annular seats 2 are in sliding connection with the bottoms of the second annular seats 3 through sliding slideways, and the tops of the second annular seats 3 are in sliding connection with the bottoms of the third annular seats 4 through sliding slideway; the top of the first annular seat 2 is fixedly connected with two first bearing seats 8 and two second bearing seats 9, a first lead screw 10 and a second lead screw 11 are respectively connected between the two first bearing seats 8 and the two second bearing seats 9 in a rotating manner through a bearing, the surfaces of the first lead screw 10 and the second lead screw 11 are respectively connected with one sides of the second annular seat 3 and the third annular seat 4 through lead screw nuts, the top of the portal frame 5 is rotatably connected with a third lead screw 14 through a bearing, the surface of the third lead screw 14 is in threaded connection with the cross rod 6, the top of the third lead screw 14 is fixedly connected with a third rotary table 15, one end of the first lead screw 10 and one end of the second lead screw 11 are respectively fixedly connected with a first rotary table 12 and a second rotary table 13, and the surfaces of the first rotary table 12, the second rotary table 13 and the third rotary table 15 are all in threaded connection with a locking bolt 25; the first rotary table 12, the second rotary table 13 and the third rotary table 15 can be locked by screwing the locking bolts 25, so that the positions of the second annular seat 3, the third annular seat 4 and the cross rod 6 are effectively prevented from changing;

the lifting mechanism comprises a portal frame 5, a cross rod 6 and a connecting rod 7, the portal frame 5 is fixedly connected to the inner ring side wall of the third annular seat 4, the inner side surface of the portal frame 5 is slidably connected with two ends of the cross rod 6 through a sliding rail slider, the connecting rod 7 is fixedly connected to the bottom of the cross rod 6, and the lower end of the connecting rod 7 is fixedly connected with a hardness tester 26 through a bolt; two slots 19 matched with the top ends of the two telescopic rods 17 are formed in the bottom of the portal frame 5, magnets 20 are fixedly connected to the tops of the inner sides of the two slots 19, and conducting blocks 21 are fixedly connected to the surfaces of the magnets 20; and when the third turntable 15 is rotated, the connecting rod 7 pushes the hardness tester 26 to vertically move up and down through the mutual matching of the third screw rod 14 and the cross rod 6.

The positioning mechanism comprises a positioning disc 16, the top of the positioning disc 16 is fixedly connected with two telescopic rods 17, the tops of the two telescopic rods 17 are fixedly connected with a contact block A22 and a contact block B27, the contact block A22 and the contact block B27 are both made of metal iron materials, the contact block A22 and the contact block B27 are fixed with the top of the telescopic rods 17 through insulating angles, the positioning mechanism is placed at a required measuring point after a position to be measured is selected, the bottom of the positioning disc 16 is fixedly connected with a plurality of suckers 18, the suckers 18 are adsorbed on the surface of a floor to have a good fixing effect on the positioning mechanism, the positioning disc 16 is prevented from being deviated, the measuring position is prevented from moving, measuring deviation is caused, the top of the positioning disc 16 is provided with a battery storage bin 24, a storage battery is fixedly connected inside the battery storage bin 24, the surface of the telescopic rods 17 is fixedly connected with an indicator lamp 23, the output end anode of the storage battery is electrically connected with the input end anode of the indicator lamp 23, the output negative pole and the contact piece B27 electric connection of battery, the input negative pole electric connection of contact piece A22 and pilot lamp 23, positioning disk 16 places on the floor surface, back in slot 19 was inserted on the top of telescopic link 17, switch on piece 21 and contradict the top of contact piece A22 and contact piece B27, contact piece A22 and contact piece B27 switch on, the battery provides the electric energy for pilot lamp 23, pilot lamp 23 lights.

Working principle or structural principle, when in use, when the hardness of a floor at a certain point on the ground needs to be calibrated, the positioning mechanism is placed on the point to be measured, the central position of the positioning disc 16 is aligned with the required measuring point, then the hardness calibrating device is placed above the positioning disc 16, the hardness meter 26 is installed at the lower end of the connecting rod 7, then the first screw rod 10 and the second screw rod 11 are driven to rotate by rotating the first rotating disc 12 and the second rotating disc 13, the second annular seat 3 and the third annular seat 4 can be enabled to horizontally move at the top of the first annular seat 2, when two slots 19 at the bottom of the portal frame 5 are aligned with the top ends of the two telescopic rods 17, the top ends of the telescopic rods 17 are inserted into the slots 19 under the action of the magnet 20, when the indicator lamp 23 is lightened, the hardness meter 26 is positioned right above the required measuring point, the locking bolts 25 at one sides of the first rotating disc 12 and the second rotating disc 13 are respectively tightened, locking second annular seat 3 and third annular seat 4, driving third lead screw 14 through rotating third carousel 15 for horizontal pole 6 and connecting rod 7 promote sclerometer 26 and move down, one side fixedly connected with manometer of sclerometer 26, can be to knowing how much the pressure that receives floor measuring point through the demonstration numerical value of observing the manometer, after sclerometer 26 contacted floor surface 1-3 seconds, observe the demonstration degree of hardness of sclerometer 26, this degree is the hardness that should fall the floor promptly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fall floor hardness calibrating device, includes four landing legs (1), its characterized in that: the top of each of the four support legs (1) is provided with an adjusting mechanism, the top of each adjusting mechanism is provided with a lifting mechanism, a positioning mechanism is arranged below each lifting mechanism, each adjusting mechanism comprises a first annular seat (2), a second annular seat (3) and a third annular seat (4), the top of each first annular seat (2) is connected with the bottom of each second annular seat (3) in a sliding mode through a sliding slide way, and the top of each second annular seat (3) is connected with the bottom of each third annular seat (4) in a sliding mode through a sliding rail slide way;

the lifting mechanism comprises a portal frame (5), a cross rod (6) and a connecting rod (7), the portal frame (5) is fixedly connected to the side wall of the inner ring of the third annular seat (4), the inner side surface of the portal frame (5) is connected with the two ends of the cross rod (6) in a sliding mode through sliding rail sliders, the connecting rod (7) is fixedly connected to the bottom of the cross rod (6), and the lower end of the connecting rod (7) is fixedly connected with a hardness tester (26) through a bolt;

positioning mechanism includes positioning disk (16), two telescopic link (17) of top fixedly connected with of positioning disk (16), two the equal fixedly connected with in top of telescopic link (17) contacts piece A (22) and contacts piece B (27).

2. A drop floor stiffness calibration device as set forth in claim 1, wherein: two slots (19) matched with the top ends of the two telescopic rods (17) are formed in the bottom of the portal frame (5), two magnets (20) are fixedly connected to the tops of the inner sides of the slots (19), and a conduction block (21) is fixedly connected to the surface of each magnet (20).

3. A drop floor stiffness calibration device as set forth in claim 1, wherein: the bottom of first annular seat (2) is fixed connection in the top of four landing legs (1), two first bearing blocks (8) and two second bearing blocks (9) of top fixedly connected with of first annular seat (2), two rotate through the bearing between first bearing block (8) and two second bearing blocks (9) respectively and be connected with first lead screw (10) and second lead screw (11), the surface of first lead screw (10) and second lead screw (11) is connected with one side of second annular seat (3) and third annular seat (4) through the screw-nut respectively.

4. A drop floor stiffness calibration device as set forth in claim 3, wherein: the top of the portal frame (5) is rotatably connected with a third screw rod (14) through a bearing, the surface of the third screw rod (14) is in threaded connection with the cross rod (6), the top of the third screw rod (14) is fixedly connected with a third turntable (15), and one end of the first screw rod (10) and one end of the second screw rod (11) are respectively fixedly connected with a first turntable (12) and a second turntable (13).

5. A drop floor stiffness calibration device as set forth in claim 1, wherein: the bottom fixedly connected with a plurality of sucking disc (18) of positioning disk (16), battery storage bin (24) have been seted up at the top of positioning disk (16), the inside fixedly connected with battery of battery storage bin (24), the fixed surface of telescopic link (17) is connected with pilot lamp (23).

6. A drop floor stiffness calibration device as set forth in claim 5, wherein: the positive pole of the output of battery and the anodal electric connection of input of pilot lamp (23), the output negative pole and contact block B (27) electric connection of battery, the input negative pole electric connection of contact block A (22) and pilot lamp (23).