CN211121719U

CN211121719U - Compression force tester under close-fitting motion protection

Info

Publication number: CN211121719U
Application number: CN201922027972.0U
Authority: CN
Inventors: 王永荣; 洪庄明; 徐鑫; 李海霞; 宋婉芹; 左凯悦
Original assignee: Donghua University
Current assignee: Donghua University; National Dong Hwa University
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-28
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to a close-fitting motion protection lower dress compression force tester, a serial communication port, including two sets of aggregate unit, two sets of aggregate unit connect through the middleware and become whole linkage structure, this whole linkage structure supports on the chassis, be equipped with 3 piece at least shank girth regulating plates on the whole linkage structure, be equipped with pressure sensing device on the shank girth regulating plate, pressure sensing device links to each other with the data acquisition unit, all shank girth regulating plates distribute along circumference, the close-fitting motion protection lower dress cover of examination is outside the structure that encloses by all shank girth regulating plates, thereby drive all shank girth regulating plates by whole linkage structure under the control of the control unit along radially opening or closed low limbs of different girth specifications of simulation, the control unit connects data acquisition unit.

Description

Compression force tester under close-fitting motion protection

Technical Field

The utility model relates to a close-fitting equipment compressive force tester, more specifically say, relate to a close-fitting motion protection is intelligent model instrument for lower dress compressive force test.

Background

With the development of society and economy, more and more people pay attention to exercise and fitness, and functional close-fitting exercise protection equipment is concerned. The sports protective lower garment mainly comprises compression trousers, thigh protectors, knee pads and shank protectors. The work efficiency principle is that the compression force of the legs of the human body is applied to achieve the fixing and supporting effect, such as compressing the trousers, protecting the thighs and protecting the shanks, the dynamic gradient compression of the legs is applied according to the blood circulation and the muscle form change of the legs of the human body in the exercise, namely scientific pressure distribution. According to the characteristics of motion and knee joint biomechanics, the knee-protecting product protects and supports the knee joint. The magnitude and distribution of the compressive force is critical to achieving the ergonomics of motion protection of such products, but currently there are no specific test standards and test instruments.

Among the existing contact pressure test methods, there are a direct test method and an indirect test method. The indirect test method is to test the tensile force on a tensile force machine and convert the tensile force into the compressive force through the Laplace equation. The curvature radius of the circumference of the human body is changed greatly, the test is difficult, the calculation is complex, and the obtained compression force is low in precision. The method is suitable for seamless knitted products with uniform texture on the circumference, and is not suitable for spliced high-elastic protective products and protective products with keels or other supporting strips. The direct test method is that the pressure sensor is placed between the protector product and the leg or the leg mould on the human body or the leg mould to test. There are certain limitations to measuring garment pressure directly on the body: (1) the body is in continuous motion, so that more accurate data is difficult to obtain; (2) the test on the human body is time-consuming and expensive; (3) not suitable for daily evaluation test of products. Testing on leg forms requires multiple models of leg forms to fully cover all sizes of consumers.

Disclosure of Invention

The utility model aims at providing a be exclusively used in equipment of shank contact pressure test.

In order to achieve the above object, the technical scheme of the utility model a close-fitting motion protection lower dress compression force tester is provided, a serial communication port, including two sets of aggregate unit, two sets of aggregate unit connect into whole linkage structure through the middleware, this whole linkage structure supports on the chassis, be equipped with 3 piece at least shank girth regulating plates on the whole linkage structure, be equipped with pressure sensing device on the shank girth regulating plate, pressure sensing device links to each other with the data acquisition unit, all shank girth regulating plates distribute along circumference, the close-fitting motion protection lower dress cover of examination awaits measuring is outside the structure that encloses by all shank girth regulating plates, thereby drive all shank girth regulating plates by whole linkage structure under the control of the control unit along radially opening or closed low limbs of different girth specifications of simulation, the control unit connects the data acquisition unit.

Preferably, the two sets of linkages are each independently controlled.

Preferably, the two sets of linkage devices have the same structure and are respectively defined as a first linkage device and a second linkage device, the bottom of the first linkage device is arranged on the chassis, and the top of the first linkage device is fixedly connected with the second linkage device through the middle piece.

Preferably, each set of linkage device comprises N guide rails, N is more than or equal to 2, the guide rails are provided with sliding block assemblies, the sliding block assemblies are driven by the driving assemblies to move up and down along the guide rails, and the sliding block assemblies of the first linkage device and the sliding block assemblies of the second linkage device are opposite in moving direction; a plurality of expansion rods are hinged along the circumferential direction of the sliding block assembly, the number of the expansion rods is the same as that of the leg circumference adjusting plates, and the sliding block assembly drives all the expansion rods to open or close in the up-and-down movement process; one end of each expansion rod is hinged with the sliding block component, and the other end of each expansion rod is hinged with one end of a connecting piece; the other end of each connecting piece is hinged with one end of a vertical rod; the upper end and the lower end of each leg girth adjusting plate are respectively connected with the other end of the vertical rod of the second linkage device and the other end of the vertical rod of the first linkage device.

Preferably, the driving assembly comprises a motor, the motor is connected with a screw rod through a coupling, a nut matched with the screw rod is arranged on the screw rod, and the sliding block assembly is fixed on the nut.

Preferably, the slide block assembly comprises a first slide block and a second slide block, the first slide block is in a shape of a leg section profile, and the second slide block is matched with the first slide block in shape.

Preferably, the expansion rod is hinged with the first slider through a connecting member; and the second sliding block is provided with bearing gears which are the same as the expansion rods in number, and the bearing gears are meshed with the connecting members at the corresponding positions to limit the rotation of the expansion rods at the corresponding positions.

Preferably, the chassis is provided with gradient grooves, the number of which is the same as that of the connecting pieces, and the connecting pieces of the first linkage device are arranged in the gradient grooves in a one-to-one correspondence manner so as to limit the expansion rods to move in the gradient grooves in the radial direction.

The utility model provides a pair of its advantage of close-fitting motion protection lower garment compression force test model instrument lies in: the lower limb circumference specification change is realized through the linkage device to adapt to different sizes of the tight exercise equipment, various types of lower limb equipment and a plurality of different sizes can be tested by one device, the operation is convenient, and the cost is low. More accurate and quantitative pressure data than a real person test. All electrical elements and lines can be accommodated in the model, so that the test is more accurate and the maintenance is easy. The pressure sensor is fixed on the inner side of the circumference adjusting plate, the pressure sensing element is level with the plane of the circumference adjusting plate, data deviation caused by larger pressure on the protruding position is avoided, and nondestructive testing of the movement equipment is guaranteed. The pressure signal is read, stored and analyzed through the PC end, various test contents of the protective equipment can be analyzed quickly and effectively, and the test efficiency is accelerated. The motor can be directly controlled through the PC end, and the complexity of the system is simplified.

Drawings

Fig. 1 to 4 are schematic structural views of the present invention;

FIG. 5 is a compression force tester for thigh guard products;

figure 6 is a knee product compression force tester.

Fig. 7 is a compression force tester for a shank protector product.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

As shown in fig. 1 to 4, the utility model provides a pair of intelligent model instrument is used in test of motion protection lower dress compressive force, including chassis 1, chassis 1 is used for supporting and firm whole low limbs test platform. The chassis 1 is provided with a slope groove 2 for limiting the expansion rod 12 to move in the radial direction in the slope groove 2, thereby realizing the opening and closing. The utility model discloses a two sets of aggregate unit that the structure is the same from top to bottom are defined as first aggregate unit and second aggregate unit respectively. The first linkage device and the second linkage device are connected into a whole through the central fixing frame 3. The central fixed frame 3 is fastened with the guide rails 15 of the first linkage and the second linkage. The top of the second linkage device is provided with an upper fixed disc 4, and the upper fixed disc 4 is fastened with a guide rail 15 of the second linkage device.

In this embodiment, the first linkage and the second linkage are independently controlled, and have the same structure, so that the radial stepless expansion and contraction of the leg can be realized. Each set of linkages comprises a drive arrangement consisting of an electric motor 6 and a coupling 7. The electric motor 6 is coupled to the spindle 14 via a coupling 7. The screw rod 14 is provided with a nut matched with the screw rod. The first sliding block 9 and the second sliding block 10 are fixed on the nut, the motor 6 drives the screw rod 14 to rotate, and the screw rod 14 drives the nut to further drive the first sliding block 9 and the second sliding block 10 to move up and down along the guide rail 15. The first slider 9 and the second slider 10 of the first linkage are opposite to the movement direction of the first slider 9 and the second slider 10 of the second linkage. In this embodiment, the first slider 9 is shaped like a leg section (as shown in fig. 3 and 4, the upper and lower sets of linkages are respectively cross-sectional views, so that the slider section shape can be clearly seen), and the second slider 10 is matched with the first slider 9. A plurality of connecting members 15 are distributed on the edge of the first slider 9, and the connecting members 15 are uniformly arranged along the circumferential direction of the first slider 9. One end of the expansion rod 12 is hinged with the connecting member 15, the other end is hinged with one end of the connecting piece, and the other end of the connecting piece is hinged with the vertical rod 13. The upper end and the lower end of each leg circumference adjusting plate 5 are respectively connected with the other end of one vertical rod 13 of the second linkage device and the other end of one vertical rod 13 of the first linkage device. The expansion rods 12 are constrained to move radially, pushing the vertical rods 13 closer to or further away from the central axis. The circumference adjusting plate 5 is close to or far away from the central shaft along with the vertical rod 13, so that the change of the circumference of the leg is realized. The bearing gear 11 is attached to the joint of the expansion lever 12, and engages with the coupling member 15 of the first slider to restrict the rotation of the expansion lever 12. A pressure sensor 16 is fixed to the leg-surrounding-degree adjusting plate 5.

The utility model discloses still include control circuit, data acquisition and handle and human-computer interaction device. The input end of the control circuit is connected with the output end of the human-computer interaction PC, and the output end of the control circuit is connected with the motor 6. The input end of the data acquisition circuit is connected with the pressure sensor 16, and the output end of the data acquisition circuit is connected with the input end of the human-computer interaction PC. The upper motor 6 and the lower motor are controlled to rotate through the PC end, the motion of the circumference adjusting plate approaching to or far away from the central shaft is realized, and the pressure signals of the pressure sensors are read, stored and analyzed through the PC end.

The device provided by the utility model can be used to the motion protection knee-pad compressive force test, the motion protection protects thigh compressive force test, the motion protection protects shank compressive force test etc. for protecting thigh product compressive force tester as shown in fig. 5, for knee-pad product compressive force tester as shown in fig. 6, for protecting shank product compressive force tester as shown in fig. 7.

Claims

1. The utility model provides a close-fitting motion protection is compression force tester down, a serial communication port, including two sets of aggregate unit, two sets of aggregate unit connect into whole linkage structure through the middleware, this whole linkage structure supports on the chassis, be equipped with 3 piece at least shank girth regulating plates on the whole linkage structure, be equipped with pressure sensing device on the shank girth regulating plate, pressure sensing device links to each other with the data acquisition unit, all shank girth regulating plates distribute along circumference, close-fitting motion protection of awaiting measuring is the overcoat outside the structure of enclosing by all shank girth regulating plates, thereby it radially opens or closed simulation low limbs of different girth specifications to drive all shank girth regulating plates under the control of control unit by whole linkage structure, the control unit is connected data acquisition unit.

2. A tight exercise protective under-garment compression tester as claimed in claim 1 wherein the two sets of linkages are independently controlled.

3. The tight exercise protective under-garment compression tester of claim 2, wherein the two sets of linkages are identical in structure and are defined as a first linkage and a second linkage, respectively, the bottom of the first linkage being mounted on the chassis, and the top of the first linkage being fixedly connected to the second linkage via the intermediate member.

4. The tight-fitting exercise protection under-loading compression tester of claim 3, wherein each set of said linkages includes N guide rails, N ≧ 2, slider assemblies are provided on the guide rails, the slider assemblies are driven by the driving assembly to move up and down along the guide rails, the slider assemblies of the first linkage and the slider assemblies of the second linkage move in opposite directions; a plurality of expansion rods are hinged along the circumferential direction of the sliding block assembly, the number of the expansion rods is the same as that of the leg circumference adjusting plates, and the sliding block assembly drives all the expansion rods to open or close in the up-and-down movement process; one end of each expansion rod is hinged with the sliding block component, and the other end of each expansion rod is hinged with one end of a connecting piece; the other end of each connecting piece is hinged with one end of a vertical rod; the upper end and the lower end of each leg girth adjusting plate are respectively connected with the other end of the vertical rod of the second linkage device and the other end of the vertical rod of the first linkage device.

5. The tight exercise protective under-garment compression tester of claim 4, wherein the drive assembly comprises an electric motor coupled to a lead screw through a coupling, the lead screw having a nut engaged therewith, the slider assembly being secured to the nut.

6. The tight exercise protective under-garment compression tester of claim 5, wherein the slider assembly comprises a first slider and a second slider, the first slider having a shape that is the cross-sectional profile of the leg, the second slider having a shape that matches the shape of the first slider.

7. The tight exercise protective under-garment compression tester of claim 6, wherein the expansion bar is hinged to the first slider by a connecting member; and the second sliding block is provided with bearing gears which are the same as the expansion rods in number, and the bearing gears are meshed with the connecting members at the corresponding positions to limit the rotation of the expansion rods at the corresponding positions.

8. The tight exercise protective under-garment compression tester of claim 4, wherein the chassis has a same number of sloped recesses as the number of connectors, the connectors of the first linkage being positioned in one-to-one correspondence within the sloped recesses to limit radial movement of the expansion bar within the sloped recesses.