A device for quickly testing the strength of an ice and snow runway

Abstract

The application relates to the field of ice and snow strength testing, and particularly discloses an ice and snow runway strength rapid testing device; the infrared rays emitted by an infrared emitter can irradiate on the ice and snow runway in the shell through the arrangement of the structure testing component and the hardness testing component; the snow particles with different shapes and sizes on the surface of the ice and snow runway can diffuse and reflect the infrared rays to cause the reflection light intensity to weaken; at this time, the infrared receiving plate on the top of the shell can receive the infrared rays with small reflection intensity; the particle size of the ice and snow is indirectly measured by measuring the light weakening ratio; and the mechanical properties of the ice and snow runway are determined according to the particle size of the ice and snow; meanwhile, the hardness testing component is arranged; a user can drive the inserting rod to insert into the ice and snow runway through the motor; at this time, the ice and snow in the ice and snow runway can extrude the pressure sensor; the pressure of the pressure sensor is different for the ice and snow runways with different hardness; and the user can inversely deduce the hardness of the ice and snow runway according to the reading of the pressure sensor.

Description

Technical Field

[0001] This invention belongs to the field of ice and snow strength testing technology, specifically relating to a rapid testing device for the strength of ice and snow running tracks. Background Technology

[0002] The strength of ice and snow running tracks directly determines the safety of skiers. Ice and snow running tracks with sufficient structural strength not only have less deformation but also have a certain degree of elasticity, which can effectively protect skiers.

[0003] Chinese patent CN114235578A discloses an ice rebound value testing fixture and an ice compressive strength testing method. This invention relates to a method for testing the compressive strength of ice, aiming to address the lack of existing methods for on-site strength testing of ice. The upper plate has a through hole machined in its center, four screws are vertically mounted on the lower plate, and four screws are inserted into the upper plate, with the top of each screw threadedly connected to a nut. A "V"-shaped groove is machined on the upper surface of the fixing base. The method is implemented according to the following steps: fabricating an ice specimen; fixing the ice specimen; measuring the rebound value; testing the uniaxial compressive strength; fitting the average rebound value and the uniaxial compressive strength to obtain a compressive strength-rebound value estimation curve formula; measuring the rebound value of ice entities in ice and snow structures; and obtaining the average compressive strength of different ice entities in ice and snow structures.

[0004] During the application process, the applicant discovered that the aforementioned patents mainly use hardness testers to measure the rebound of ice and testing machines to measure the uniaxial strength of ice, thereby establishing the relationship between the rebound and strength of ice. The shape and size of snow particles are the main factors affecting the mechanical properties of snow. Under natural conditions, the gaps between snow particles of different sizes continuously decrease, the air content in the snow decreases, and the chemical bonding force between snow particles increases, thus affecting the hardness of the snow. However, ice and snow running tracks are generally located outdoors or even in the wild. The strength of ice and snow running tracks is mainly related to the shape of snow particles and the hardness of the snow. The aforementioned technology is obviously not applicable to outdoor ice and snow running tracks, and there is a lack of a testing device that can measure the strength of ice and snow running tracks in the wild in a timely manner. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid testing device for the strength of ice and snow running tracks, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rapid testing device for the strength of ice and snow running tracks includes:

[0008] The card case has a size of 10*10*12cm and an insertion hole is provided on the top of the card case;

[0009] Positioning plates are disposed on both sides of the clamping case to limit the depth to which the clamping case is inserted into ice and snow;

[0010] A rotating cylinder is rotatably connected to the top of the clamping housing, and two through holes are provided on the rotating cylinder;

[0011] The bracket is fixedly installed above the housing and covers the rotating cylinder;

[0012] The mounting cylinder is fixedly mounted on the bracket, and a cylinder cap is snapped onto the top of the mounting cylinder. A handle is fixedly connected to the upper side wall of the mounting cylinder.

[0013] A structural testing component is provided inside the caliper for measuring ice and snow structures. The structural testing component includes an infrared transmitter located inside the perforation and fixedly connected to the rotating cylinder. An infrared receiving board is fixedly connected to the top of the inner wall of the caliper to receive infrared light reflected from the infrared transmitter. Both the infrared transmitter and the infrared receiving board are electrically connected to the controller.

[0014] A hardness testing component is installed inside a mounting cylinder for testing the hardness of ice and snow. The hardness testing component includes a motor installed inside the mounting cylinder. A lifting block is fixedly connected to the end of the motor output shaft, and the lifting block is threadedly connected to the inner wall of the mounting cylinder. A rod that can extend out of the mounting cylinder is fixedly connected to the bottom of the motor. A pressure sensor is fixedly connected to the bottom of the rod, and the pressure sensor is electrically connected to a controller.

[0015] The controller is fixedly installed outside the mounting cylinder, and the surface of the controller is provided with a touch screen for displaying test result values.

[0016] Preferably, the two sides of the housing are fixedly connected to slide rails and a slider is slidably connected through the slide rails. The surface of the slider is provided with a groove, and the positioning plate is hinged inside the groove. A portion of the slider above the groove protrudes outward to limit the rotation angle of the positioning plate.

[0017] Preferably, one of the slide rails has a numerical table engraved on it to display the position of the slider, and the slider is threadedly connected to a positioning bolt, the end of which can abut against the retaining shell.

[0018] Preferably, the side wall of the insertion rod is provided with a limiting groove, the inner wall of the mounting cylinder is fixedly connected with a collar, and the inner wall of the collar is fixedly connected with a protrusion that engages with the inside of the limiting groove.

[0019] Preferably, the positioning plate has a positioning hole, and the side wall of the casing is fixedly connected to a threaded cylinder corresponding to the positioning hole.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) By setting up a structural testing component and a hardness testing component, the user can place the card on the ice and snow track and align the infrared emitter with the insertion hole. The infrared rays emitted by the infrared emitter can illuminate the ice and snow track inside the card. The snow particles of different shapes and sizes on the surface of the ice and snow track can diffusely reflect the infrared rays, causing the intensity of the reflected light to weaken. At this time, the infrared receiving plate on the top of the card can receive the infrared rays with lower reflection intensity. By measuring the proportion of light attenuation, the size of the snow particles can be indirectly measured, and then the mechanical properties of the ice and snow track can be determined based on the size of the snow particles. At the same time, a hardness testing component is set up. The user can insert the insertion rod into the ice and snow track by driving the motor. At this time, the ice and snow inside the ice and snow track can squeeze the pressure sensor. The pressure of the pressure sensor is different for ice and snow tracks with different hardness. The user can deduce the hardness of the ice and snow track based on the pressure sensor reading.

[0022] (2) By setting up a slide rail, a slider, a positioning bolt and a positioning plate, when the user needs to take samples of the ice and snow track, the tester can slide the slider to a suitable position inside the slide rail, and then rotate the positioning plate to a horizontal position. When the user presses the chuck into the ice and snow track to take samples, the positioning plate can limit the depth of the chuck's sinking, thereby effectively determining the sample volume taken by the chuck and effectively reducing the measurement work of the tester. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a front view of the present invention.

[0025] Figure 3 This is a side view of the present invention;

[0026] Figure 4 This is a bottom-view structural diagram of the present invention;

[0027] Figure 5 This is a schematic diagram of the card case structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the mounting cylinder of the present invention;

[0029] In the diagram: 1. Chassis; 2. Slide rail; 3. Slider; 4. Positioning bolt; 5. Positioning plate; 51. Positioning hole; 6. Rotary cylinder; 7. Infrared transmitter; 8. Perforation; 9. Bracket; 10. Mounting cylinder; 11. Cylinder cover; 12. Handle; 13. Controller; 14. Threaded cylinder; 15. Infrared receiver plate; 16. Lifting block; 17. Motor; 18. Insert rod; 19. Limiting groove; 20. Collar; 21. Pressure sensor. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] Please see Figure 1 - Figure 6 As shown, a rapid testing device for the strength of ice and snow running tracks includes:

[0033] Card case 1, the card case 1 is 10*10*12cm in size, and the top of the card case 1 has an insertion hole;

[0034] Rotating cylinder 6 is rotatably connected to the top of the clamping housing 1, and two through holes 8 are provided on the rotating cylinder 6;

[0035] Support 9 is fixedly installed above the housing 1 and covers the rotating cylinder 6;

[0036] Mounting cylinder 10 is fixedly mounted on bracket 9. A cylinder cap 11 is snapped onto the top of mounting cylinder 10. A handle 12 is fixedly connected to the upper side wall of mounting cylinder 10.

[0037] Structural testing component, located inside cassette 1, is used to measure the structure of ice and snow;

[0038] Hardness testing component, which is installed inside the mounting cylinder 10 for testing the hardness of ice and snow;

[0039] The controller 13 is fixedly installed outside the mounting cylinder 10, and the surface of the controller 13 is provided with a touch screen to display the test result values.

[0040] As can be seen from the above, when users need to measure the snow particle structure of an ice and snow track to determine its mechanical properties, they can place the chuck 1 on the ice and snow track or slightly embed it inside the track. The structural testing component can then effectively measure the size of the snow particles and determine the track strength based on the particle size. After measuring the snow particle size, users can rotate the drum 6 to facilitate the hardness testing component in measuring the track hardness.

[0041] The structural test assembly includes an infrared transmitter 7 located inside the perforation 8 and fixedly connected to the rotating cylinder 6. An infrared receiver plate 15, which receives infrared light reflected from the infrared transmitter 7, is fixedly connected to the top of the inner wall of the housing 1. Both the infrared transmitter 7 and the infrared receiver plate 15 are electrically connected to the controller 13.

[0042] As can be seen from the above, when the user tests the structure of ice and snow particles, the tester can rotate the rotating drum 6 so that the infrared emitter 7 is aligned with the socket. At this time, the infrared rays emitted by the infrared emitter 7 will illuminate the ice and snow track inside the casing 1. Then the infrared receiving plate 15 can receive the infrared rays diffusely reflected from the surface of the ice and snow track. The controller 13 determines the ice and snow particle size on the surface of the ice and snow track based on the relationship between the infrared reflectivity and the size of the ice and snow particles, and thus determines the mechanical properties of the ice and snow track.

[0043] The hardness testing assembly includes a motor 17 disposed inside the mounting cylinder 10. A lifting block 16 is fixedly connected to the end of the output shaft of the motor 17, and the lifting block 16 is threadedly connected to the inner wall of the mounting cylinder 10. An insertion rod 18 that can extend out of the mounting cylinder 10 is fixedly connected to the bottom of the motor 17. A pressure sensor 21 is fixedly connected to the bottom of the insertion rod 18, and the pressure sensor 21 is electrically connected to the controller 13.

[0044] The side wall of the insertion rod 18 has a limiting groove 19, and the inner wall of the mounting cylinder 10 is fixedly connected to a collar 20, and the inner wall of the collar 20 is fixedly connected to a protrusion that is snapped into the limiting groove 19.

[0045] As can be seen from the above, when the tester tests the strength of the ice and snow track, the rotating cylinder 6 can be rotated to align the perforation 8 with the insertion hole, and the motor 17 can be started to drive the lifting block 16 to rotate. The lifting block 16, which is threadedly connected to the mounting cylinder 10, will move up and down during the rotation. When the lifting block 16 moves downward, it will drive the insertion rod 18 and the pressure sensor 21 to be inserted into the ice and snow track. The reading of the pressure sensor 21 can be connected with the hardness inside the ice and snow track. The user can deduce the hardness inside the ice and snow track from the reading of the pressure sensor 21.

[0046] Example 2:

[0047] Please see Figure 1 - Figure 6 As shown, a rapid testing device for the strength of ice and snow running tracks includes:

[0048] Card case 1, the card case 1 is 10*10*12cm in size, and the top of the card case 1 has an insertion hole;

[0049] Rotating cylinder 6 is rotatably connected to the top of the clamping housing 1, and two through holes 8 are provided on the rotating cylinder 6;

[0050] Support 9 is fixedly installed above the housing 1 and covers the rotating cylinder 6;

[0051] Mounting cylinder 10 is fixedly mounted on bracket 9. A cylinder cap 11 is snapped onto the top of mounting cylinder 10. A handle 12 is fixedly connected to the upper side wall of mounting cylinder 10.

[0052] Structural testing component, located inside cassette 1, is used to measure the structure of ice and snow;

[0053] Hardness testing component, which is installed inside the mounting cylinder 10 for testing the hardness of ice and snow;

[0054] The controller 13 is fixedly installed outside the mounting cylinder 10, and the surface of the controller 13 is provided with a touch screen to display the test result values.

[0055] As can be seen from the above, when users need to measure the snow particle structure of an ice and snow track to determine its mechanical properties, they can place the chuck 1 on the ice and snow track or slightly embed it inside the track. The structural testing component can then effectively measure the size of the snow particles and determine the track strength based on the particle size. After measuring the snow particle size, users can rotate the drum 6 to facilitate the hardness testing component in measuring the track hardness.

[0056] The structural test assembly includes an infrared transmitter 7 located inside the perforation 8 and fixedly connected to the rotating cylinder 6. An infrared receiver plate 15, which receives infrared light reflected from the infrared transmitter 7, is fixedly connected to the top of the inner wall of the housing 1. Both the infrared transmitter 7 and the infrared receiver plate 15 are electrically connected to the controller 13.

[0057] As can be seen from the above, when the user tests the structure of ice and snow particles, the tester can rotate the rotating drum 6 so that the infrared emitter 7 is aligned with the socket. At this time, the infrared rays emitted by the infrared emitter 7 will illuminate the ice and snow track inside the casing 1. Then the infrared receiving plate 15 can receive the infrared rays diffusely reflected from the surface of the ice and snow track. The controller 13 determines the ice and snow particle size on the surface of the ice and snow track based on the relationship between the infrared reflectivity and the size of the ice and snow particles, and thus determines the mechanical properties of the ice and snow track.

[0058] The hardness testing assembly includes a motor 17 disposed inside the mounting cylinder 10. A lifting block 16 is fixedly connected to the end of the output shaft of the motor 17, and the lifting block 16 is threadedly connected to the inner wall of the mounting cylinder 10. An insertion rod 18 that can extend out of the mounting cylinder 10 is fixedly connected to the bottom of the motor 17. A pressure sensor 21 is fixedly connected to the bottom of the insertion rod 18, and the pressure sensor 21 is electrically connected to the controller 13.

[0059] The side wall of the insertion rod 18 has a limiting groove 19, and the inner wall of the mounting cylinder 10 is fixedly connected to a collar 20, and the inner wall of the collar 20 is fixedly connected to a protrusion that is snapped into the limiting groove 19.

[0060] As can be seen from the above, when the tester tests the strength of the ice and snow track, the rotating cylinder 6 can be rotated to align the perforation 8 with the insertion hole, and the motor 17 can be started to drive the lifting block 16 to rotate. The lifting block 16, which is threadedly connected to the mounting cylinder 10, will move up and down during the rotation. When the lifting block 16 moves downward, it will drive the insertion rod 18 and the pressure sensor 21 to be inserted into the ice and snow track. The reading of the pressure sensor 21 can be connected with the hardness inside the ice and snow track. The user can deduce the hardness inside the ice and snow track from the reading of the pressure sensor 21.

[0061] The cassette 1 has positioning plates 5 on both sides to limit the depth of insertion of the cassette 1 into the ice and snow. The cassette 1 is fixedly connected to the two sides of the slide rail 2 and the slider 3 is slidably connected through the slide rail 2. The surface of the slider 3 has a groove, and the positioning plate 5 is hinged inside the groove. A part of the slider 3 above the groove protrudes outward to limit the rotation angle of the positioning plate 5.

[0062] A slide rail 2 has a numerical table engraved on it to show the position of the slider 3, and the slider 3 is threadedly connected to a positioning bolt 4, the end of which can abut against the retaining box 1.

[0063] The positioning plate 5 has a positioning hole 51, and the side wall of the clamping case 1 is fixedly connected to a threaded cylinder 14 corresponding to the positioning hole 51.

[0064] As can be seen from the above, when the user needs to use the chuck 1 to take samples of the ice and snow track, the user can slide the slider 3 to a suitable position inside the slide rail 2. The user can determine the position of the slider 3 through the numerical table, and then rotate the positioning plate 5 to a horizontal position and press the chuck 1 into the ice and snow track. The positioning plate 5 can block the surface of the ice and snow track to limit the sinking depth of the chuck 1, thereby effectively controlling the sample volume inside the chuck 1. When the user needs to store the test components, in order to reduce the space occupied by the entire device, the user can rotate the positioning plate 5 so that the positioning plate 5 is attached to the surface of the chuck 1. At this time, the positioning hole 51 on the surface of the positioning plate 5 is aligned with the threaded cylinder 14. The user can insert the bolt through the positioning space 51 into the threaded cylinder 14 to limit the rotation of the positioning plate 5, thereby effectively reducing the volume occupied by the entire device and making it easier for the user to store.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for rapid testing of the strength of an ice / snow runway, characterized in that Include: The card shell (1), the card shell (1) specification adopts 10*10*12cm setting, and the card shell (1) top is provided with a jack; Positioning plate (5), the positioning plate (5) is provided on both sides of the card shell (1) for limiting the depth of the card shell (1) inserted into the ice and snow; Rotary drum (6), the rotary drum (6) is rotatably connected to the top of the card shell (1), and two perforations (8) are formed in the rotary drum (6); Support (9), the support (9) is fixedly installed above the card shell (1) and covers the rotary drum (6); Mounting cylinder (10), the mounting cylinder (10) is fixedly installed on the support (9), and the mounting cylinder (10) is provided with a cylinder cover (11) at the top, and a handle (12) is fixedly connected to the upper end of the side wall of the mounting cylinder (10); The structure test assembly is arranged in the card shell (1) for measuring the structure of ice and snow, and the structure test assembly comprises an infrared emitter (7) arranged in the perforation (8) and fixedly connected with the rotary drum (6), the inner wall of the card shell (1) is fixedly connected with an infrared receiving plate (15) for receiving the reflected infrared rays of the infrared emitter (7), and the infrared emitter (7) and the infrared receiving plate (15) are electrically connected with the controller (13); The hardness test assembly is arranged in the mounting cylinder (10) for testing the hardness of ice and snow, and the hardness test assembly comprises a motor (17) arranged in the mounting cylinder (10), the output shaft of the motor (17) is fixedly connected with a lifting block (16), and the lifting block (16) is threadedly connected with the inner wall of the mounting cylinder (10), the bottom of the motor (17) is fixedly connected with an insertion rod (18) which can be extended out of the mounting cylinder (10), the bottom of the insertion rod (18) is fixedly connected with a pressure sensor (21), and the pressure sensor (21) is electrically connected with the controller (13); The controller (13) is fixedly installed outside the mounting cylinder (10), and the surface of the controller (13) is provided with a touch screen for displaying the test result value.

2. The apparatus of claim 1, wherein: The two sides of the card shell (1) are fixedly connected with slide rails (2), and slide blocks (3) are slidably connected with the slide rails (2), the surface of the slide block (3) is provided with a groove, and the positioning plate (5) is hinged in the groove, and a part of the slide block (3) above the groove is protruded outward to limit the rotating angle of the positioning plate (5).

3. A device for rapid testing of ice / snow runway strength according to claim 2, characterized in that: A numerical table showing the position of the slide block (3) is marked on one of the slide rails (2), and a positioning bolt (4) is threadedly connected to the slide block (3), and the end of the positioning bolt (4) can abut against the card shell (1).

4. The apparatus of claim 1, wherein: The side wall of the insertion rod (18) is provided with a limiting groove (19), the inner wall of the mounting cylinder (10) is fixedly connected with a sleeve ring (20), and the inner wall of the sleeve ring (20) is fixedly connected with a protrusion which is clamped in the limiting groove (19).

5. The apparatus of claim 1, wherein: The positioning plate (5) is provided with a positioning hole (51), and the side wall of the card shell (1) is fixedly connected with a threaded cylinder (14) corresponding to the positioning hole (51).

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