Portable impact tester

Abstract

The present invention relates to a portable impact tester, and more specifically, to a portable impact tester that is manufactured to be relatively small and lightweight for easy portability, can easily measure the degree of impact absorption of a floor surface even with a simple structure, and allows for easy verification of information by displaying the measured information on a display unit on the top surface. To this end, the present invention comprises: a cylinder body having a cylindrical shape, a support member extending horizontally from the bottom to support a bottom surface, a guide groove formed longitudinally on the side, and a locking groove extending horizontally above the guide groove; a weight having a handle on the side that moves along the guide groove and moves up and down inside the cylinder body, and which applies impact to the bottom surface when moving downward; an electromagnet provided on the weight to fix or release the weight by applying or not applying electricity; a sensor connected to the weight to measure the degree of impact absorption of the bottom surface due to the downward movement of the weight; a spring provided at the bottom of the weight to absorb impact when the weight moves downward; and a cylinder head provided at the top of the cylinder body, having a display part on the top surface that displays information measured by the sensor.

Description

Technology Field

[0001] The present invention relates to a portable impact tester, and more specifically, to a portable impact tester that is manufactured to be relatively small and lightweight for easy portability, can easily measure the degree of impact absorption of a floor surface even with a simple structure, and allows for easy verification of information by displaying the measured information on a display unit on the top surface. Background Technology

[0002] In the case of a stadium, such as one with artificial turf, artificial turf is generally laid after civil engineering work is completed, and sand and infill are spread on top. The KS (Korean Industrial Standard) certification specifies an artificial turf length of 55 mm, while the FIFA (International Football Federation) regulation specifies 60 to 65 mm.

[0003] In the case of such hard artificial turf, joint injuries such as those to the knees and ankles, as well as head injuries, are likely to occur, and concussions are also frequent when hitting the head on the ground while jumping and falling, so it goes without saying that the increase in injuries leads to a decline in the athletes' careers.

[0004] Therefore, in the case of a stadium where artificial turf is installed, the shock absorption must meet the standards. The shock absorption of artificial turf must satisfy at least 50% according to domestic standards and 60% according to international standards (62~68% for professional standards, 57~68% for general standards).

[0005] Artificial turf that fails to meet shock absorption standards requires repair; however, there is currently no system in place to continuously inspect and manage the condition of the turf, and shock absorption surveys are typically conducted only once immediately after completion.

[0006] Meanwhile, a testing device capable of easily investigating the shock absorption of such artificial turf has been conventionally provided, and an example is shown in FIG. 1. FIG. 1 is a photograph showing a shock testing device according to the prior art.

[0007] Referring to Fig. 1, conventional impact testing machines are heavy and difficult to install, and in particular, the support part is in the form of a tripod, making it difficult to balance.

[0008] In addition, since the display equipment capable of checking shock absorption information measured by the sensor is connected via a signal line and provided as a separate device, there are issues such as it being cumbersome, difficult to install, and not easy to carry. Prior art literature

[0009] Republic of Korea Registered Utility Model Publication No. 20-0430010 (Oct. 26, 2006) Republic of Korea Registered Patent Publication No. 10-0903560 (June 11, 2009) The problem to be solved

[0010] The present invention was conceived based on the technical background described above, and aims to provide a portable impact tester that is easy to carry and allows for easy verification of measured information.

[0011] And the purpose is to provide a portable impact tester that can conveniently perform the task of testing the impact absorption degree of artificial turf.

[0012] The objectives of the present invention are not limited to those mentioned above, and other unmentioned objectives will be clearly understood from the description below. means of solving the problem

[0013] The present invention for achieving the above objective is characterized by comprising: a cylinder body having a cylindrical shape, a support member extending horizontally from the bottom to support a bottom surface, a guide groove formed longitudinally on the side, and a locking groove extending horizontally above the guide groove; a weight having a handle on the side that moves along the guide groove and moves up and down inside the cylinder body, and applies impact to the bottom surface when moving downward; an electromagnet provided on the weight to fix or release the weight by applying or not applying electricity; a sensor connected to the weight to measure the degree of impact absorption of the bottom surface due to the downward movement of the weight; a spring provided at the bottom of the weight to absorb impact when the weight moves downward; and a cylinder head provided at the top of the cylinder body, having a display part on the top surface that displays information measured by the sensor.

[0014] And according to a preferred embodiment of the present invention, the weight further comprises a sensor cover provided on the upper part of the weight and having the sensor provided inside, and an anti-slip part provided to surround the weight.

[0015] In addition, according to a preferred embodiment of the present invention, the device further comprises: a control unit configured inside the cylinder head and connected to the sensor, electromagnet, and display unit to control the components; and a battery that provides power to the components. Effects of the invention

[0016] The present invention based on the above-described configuration can expect the following effects.

[0017] It is relatively lightweight and has a simple structure, making it easy to carry and allowing tasks to be performed conveniently.

[0018] In other words, by using an electromagnet to drop a weight, the task of easily measuring the degree of impact absorption of the floor surface can be performed.

[0019] In addition, the handle provided on the side of the main body makes it easy to transport and carry.

[0020] In addition, there is the effect of easily checking the measured information through the display provided on the upper surface of the tester. Brief explanation of the drawing

[0021] Figure 1 is a photograph showing an impact tester according to the prior art. FIGS. 2 and FIGS. 3 are perspective views showing a portable impact tester according to the present invention. FIG. 4 is an exploded perspective view showing a portable impact tester according to the present invention. FIGS. 5a to 5c are drawings illustrating a method of using a portable impact tester according to the present invention. Specific details for implementing the invention

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to the description, the advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the attached drawings. Furthermore, it should be noted that the terms used in this specification are for describing the embodiments and are not intended to limit the present invention; that singular forms of such terms include plural forms unless specifically stated otherwise in the text, and that words indicating direction in the description are intended to aid in understanding the description and may change depending on the context.

[0023] A portable impact tester according to a preferred embodiment of the present invention will be described in detail below with reference to the attached drawings. FIGS. 2 and FIGS. 3 are perspective views showing a portable impact tester according to the present invention, and FIGS. 4 is an exploded perspective view showing a portable impact tester according to the present invention.

[0024] Referring to FIGS. 2 to 4, the portable impact tester (100) according to the present invention includes a cylinder body (10), a weight (20), an electromagnet (30), a sensor (not shown), a spring (40), and a cylinder head (50).

[0025] The cylinder body (10) is in the shape of a cylinder and includes a support part (11) provided at the bottom, a guide groove (13) provided on the side, and a locking groove (15).

[0026] The support member (11) is formed to extend horizontally from the lower part of the cylinder body (10) to support the floor surface, and when testing using the portable impact tester (100) according to the present invention, the user may step on the support member (11) with their foot to secure it and then perform the work.

[0027] The guide groove (13) is formed longitudinally on the side of the cylinder body (10) and becomes a space where the handle (21) of the weight moves up and down when the weight (20) moves up and down.

[0028] That is, when the weight (20) is struck downward to measure the impact absorption of the floor surface, the handle (21) moves downward along the guide groove (13) as the weight (20) moves, and when the weight (20) is moved upward after measurement, the user moves the weight (20) upward by grasping the handle (21) and moving it along the guide groove (13).

[0029] As shown in the drawing, the guide groove (13) is formed from the upper surface of the cylinder body (10) to a predetermined depth, which is formed to a depth where the weight (20) can sufficiently strike the bottom surface.

[0030] That is, the length is determined by taking into account the weight of the weight (20) and the elastic force of the spring (40) so that the guide groove (13) is not short and the weight (20) does not strike the bottom surface.

[0031] The catch groove (15) is formed by extending horizontally above the guide groove (13) and is the part where the handle (21) of the weight catches.

[0032] That is, by hooking the handle (21) into the hooking groove (15), the weight (20) can be stably fixed to the upper part when the portable impact tester (100) according to the present invention is not in use.

[0033] A body handle (19) is further provided on the side of the cylinder body (10).

[0034] That is, the portable impact tester (100) according to the present invention is relatively lightweight and has a simple structure, making it easy to carry. In particular, because it is lightweight, it has the effect of making it easy for a user to carry or transport by holding the handle (19) of the main body.

[0035] Here, the cylinder body (10) may be manufactured from aluminum, and it is preferable that it be manufactured from a material that is not attracted to magnetism when the weight (20) is fixed by magnetism from the electromagnet (30).

[0037] The weight (20) moves up and down inside the cylinder body (10), and when moving downward, it strikes the bottom surface to measure the degree of shock absorption of the bottom surface.

[0038] The weight (20) includes a handle (21), a sensor cover (23), and an anti-slip part (25).

[0039] The handle (21) moves along the guide groove (13), is rod-shaped, and is provided to protrude from the side of the weight (20).

[0040] The sensor cover (23) is provided on the upper part of the weight (20), and a sensor (not shown) is provided inside the sensor cover (23).

[0041] Here, the sensor cover (23) can be made of a magnetically attracted material, such as iron, so that it can be fixed to the electromagnet (30) by the magnetism of the electromagnet (30).

[0042] The anti-slip part (25) is provided to surround the weight (20), and as shown in FIG. 4, it is provided around the lower outer edge of the weight (20).

[0043] Meanwhile, the weight of the weight (20) is determined by taking into account the elastic force of the spring (40).

[0045] The electromagnet (30) is provided on the weight (20), that is, on the sensor cover (23), so that the weight (20) can be fixed or unfixed by applying or not applying electricity.

[0046] The electromagnet (30) is controlled by the control unit (53) and has the property of becoming a magnet when electricity flows into it. When electricity is applied to the electromagnet (30), it becomes magnetic and fixes the weight (20), and when electricity is not applied, the magnetism disappears and releases the fixation of the weight (20).

[0047] Accordingly, by applying or not applying electricity to the electromagnet (30), the weight (20) is struck in a fixed or downward direction, and at this time, the degree of shock absorption of the bottom surface can be measured through a sensor provided in the sensor cover (23) of the weight (20).

[0049] The sensor is connected to the weight (20) and measures the degree of shock absorption of the floor surface due to the downward movement of the weight (20).

[0050] Here, the sensor may be a gravity acceleration sensor, but is not limited thereto, and anything capable of measuring the absorption of impact from the strike of the weight (20) is possible.

[0052] A spring (40) is provided at the bottom of the weight (20) to absorb shock when the weight (20) moves downward.

[0053] When the weight (20) strikes the bottom surface, the degree of bouncing of the weight (20) by the spring (40) is measured by the gravity acceleration sensor, thereby allowing the degree of shock absorption of the bottom surface to be measured.

[0055] The cylinder head (50) is provided on the upper part of the cylinder body (10) and includes a display unit (51), a control unit (53), and a battery (not shown).

[0056] The display unit (51) is provided on the upper surface of the cylinder head (50) and displays information measured by the sensor.

[0057] In other words, conventionally, a display for checking measured information was provided as a separate device, and since this device was connected to the main body via a signal line, the work for impact testing was very cumbersome due to the heavy and complex equipment.

[0058] However, in the present invention, since the display unit (51) is integrally formed on the upper surface of the main body, that is, on the upper surface of the cylinder head (50), the operation is very easy.

[0059] The control unit (53) is provided inside the cylinder head (50) and is connected to the aforementioned sensor, electromagnet (30), and display unit (51) to control them.

[0060] That is, the control unit (53) controls the on / off of the portable shock tester (100) according to the present invention, the on / off of the sensor, and the information measured through the sensor to be displayed on the display unit (51), and controls the application or non-application of electricity to the electromagnet (30).

[0061] Here, reference numeral 55 is the power button for turning on / off the portable shock tester (100).

[0062] The battery is provided inside the cylinder head (50), and as shown in FIG. 4, is mounted via a stand (60) and provides power to each component.

[0064] Below, we will examine a method for measuring the degree of impact absorption of a floor surface using a portable impact tester (100) according to the present invention. FIGS. 5a to 5c are drawings illustrating a method of using a portable impact tester according to the present invention.

[0065] First, referring to FIG. 5a, the general state, that is, the state before performing the impact test, is such that the handle (21) of the weight (20) is caught in the catch groove (15) of the cylinder body (10).

[0066] At this time, electricity is not applied to the electromagnet (30), and even if electricity is not applied, the handle (21) is fitted into the locking groove (15), so the weight (20) remains in a stable standby state on the upper part of the cylinder body (10).

[0067] Next, when performing an impact test, the operator can easily transport the portable impact tester (100) according to the present invention to the floor surface for testing using the main body handle (19), and the transported tester (100) can be stably set up by stepping on the support member (11) with the operator's foot.

[0068] Next, as shown in FIG. 5b, the operator moves the handle (21) in the direction of the arrow (A) to move the handle (21) fitted into the catch groove (15) to the top of the guide groove (13).

[0069] At this time, electricity is applied to the electromagnet (30), so that the weight (20) is fixed to the upper part of the cylinder body (10) by the electromagnet (30), and the worker does not need to keep holding the handle (21).

[0070] Electricity can be applied to the electromagnet (30) by pressing the aforementioned power button (55), and the electricity is applied to the electromagnet (30) after the user moves the handle (21) in direction A.

[0071] Next, by cutting off the electricity applied to the electromagnet (30), the weight (20) is struck in the direction of the arrow (B), that is, downward, as shown in FIG. 5c.

[0072] At this time, when the weight (20) moves downward, the impact is absorbed by the spring (40) provided at the bottom of the weight (20), and the degree of impact absorption on the floor surface is measured through a sensor.

[0073] The measured degree of shock absorption is displayed through the display unit (51), so the operator can easily check the information.

[0074] Next, when the work is completed, the operator grasps the handle (21) and moves it upward along the guide groove (15), thereby moving the weight (20) to its original position, that is, the upper part of the cylinder body (10) shown in FIG. 5b, and catches the handle (21) in the catch groove (15) as shown in FIG. 5a.

[0075] In this way, when using the portable impact tester (100) according to the present invention, it is easy to transport and carry, and the work for absorbing the impact on the floor surface can be performed very simply.

[0077] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications, changes, and substitutions within the scope of the essential characteristics of the present invention. Furthermore, as described above, the embodiments disclosed in the present invention and the accompanying drawings are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments and accompanying drawings. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0078] 100; Portable impact tester 10; Cylinder body 11; support part 13; Guide Home 15; Stiffness groove 19; Main body handle 20; weight 21; handle 23; Sensor cover 25; Anti-slip part 30; electromagnet 40; spring 50; cylinder head 51; Display section 53; control unit 55; Power switch 60; Battery cradle 65; upper plate

Claims

Claim 1 A portable impact tester characterized by comprising: a cylinder body having a cylindrical shape, a support member extending horizontally from the bottom to support a bottom surface, a guide groove formed longitudinally on the side, and a locking groove extending horizontally above the guide groove; a weight having a handle on the side that moves along the guide groove and moves up and down inside the cylinder body to apply impact to the bottom surface when moving downward; an electromagnet provided on the weight to fix or release the weight by applying or not applying electricity; a sensor connected to the weight to measure the degree of impact absorption of the bottom surface due to the downward movement of the weight; a spring provided at the bottom of the weight to absorb impact when the weight moves downward; and a cylinder head provided at the top of the cylinder body, having a display part on the top surface that displays information measured by the sensor. Claim 2 A portable impact tester according to claim 1, further comprising: a weight, a sensor cover having a sensor provided on the upper part of the weight and having a sensor provided inside, and an anti-slip part provided to surround the weight. Claim 3 A portable impact tester according to claim 1, further comprising: a control unit configured inside the cylinder head and connected to the sensor, electromagnet, and display unit to control the components; and a battery that provides power to the components.

Images