Self-defined type Portable mattress soft durometer measuring instrument
Technical field
The utility model relates to mattress soft durometer testing tool, is specifically related to the hand-held mattress soft durometer measuring instrument of the type that can customize.
Background technology
There have been at present a series of sponge hardness standard and surveying instrument, sponge skin hardness meter has been arranged, sponge indentation force deflection measuring instrument etc. (GB10807-2006 flexible foam polymeric material is pressed the performance test standard that falls into).The mattress aspect, GB (QBT 1952.2-2011 soft body furniture spring mattress) is divided into ten grades with the soft durometer of mattress, and the soft or hard surveying instrument that also has some to carry out by this standard on market.But in the mattress sales process, the soft durometer of this ten grades does not come into vogue.Its reason is that classification is too thin, and human body is not easy to distinguish trickle soft durometer difference, often takes half an hour in the shop, is hard to tell also that 6 grades suitable or 7 grades suitable, and classification too carefully causes to the consumer and distinguishes difficulty.Mattress also can not be done soft durometer very accurate as mechanical electronic product, is difficult to realize Accurate Classification in production, and factory also is not easy to realize homogenization production.on the other hand, the too thin production and administration of product of also giving of classification makes troubles, if there are 100 sections of products in a factory, every money divides five kinds of soft durometer, be exactly 500 kinds of products, if every money is divided into ten kinds of soft durometer, be exactly 1,000 kinds of products, this all brings very large trouble for management of product warehouse logistics, so, during mattress is sold abroad, usually only divide 3-7 level soft durometer, some companies are by seven grades of soft durometer, some companies are by Pyatyi, by also having of level Four six fractions, the mattress of selling in the IKEA shop only divides three grades of soft durometer, subregion is fewer lower to mattress production and handling cost, simpler.But classification can not satisfy the demands of consumers very little, so each company adopts different soft durometer classifications according to the marketed of oneself.Need on market a kind ofly can be carried out by the user mattress soft durometer surveying instrument of mattress soft durometer hierarchical definition according to oneself needs, and market also needs the light little instrument of a kind of hand-held with low cost, convenient measure in factory, perhaps carry out soft durometer in mattress brand shop and show.
The utility model content
In order to address the above problem, the purpose of this utility model is to provide a kind of self-defined type Portable mattress soft durometer measuring instrument, its adopts pressure sensor and displacement transducer combine the soft durometer of mattress are measured, simple in structure, be easy to carry about with one, and the user can carry out according to own needs the soft durometer classification of mattress.
The technical scheme that its technical matters that solves the utility model adopts is:
Self-defined type Portable mattress soft durometer measuring instrument, it comprises:
One pressure transducer is used for obtaining the pressure signal when mattress is exerted oneself;
One displacement transducer is used for obtaining the described displacement signal that firmly mattress surface is caused depression;
One control panel, described control panel comprises:
One microprocessor is used for receiving described pressure signal and displacement signal, and compares in conjunction with pressure signal and displacement signal and the preset value that is provided with in it;
One touch screen is used for the input preset value to microprocessor, and the result of described comparison is shown.
as improvement of the present utility model, described self-defined type Portable mattress soft durometer measuring instrument further comprises inner support, support arm, handle, coupling shaft on pressure transducer, coupling shaft under pressure transducer, on described pressure transducer, coupling shaft is fixedly connected between the upper end and handle of pressure transducer, under described pressure transducer, the upper end of coupling shaft is fixedly connected on the lower end of pressure transducer, its lower end acts on the surface of mattress, described inner support fixedly sleeved on pressure transducer the periphery of coupling shaft, inner support is arranged at the inside of support arm and is slidably connected with support arm, control panel is installed on support arm, displacement transducer is fixed on inner support, the telescopic shaft of this displacement transducer is fixed on support arm by a displacement transducer connecting link.
Preferably, under described pressure transducer, the lower end of coupling shaft also is fixedly connected with a pressure disk.
Preferably, the diameter of described pressure disk is 20 centimetres.
As a kind of mode that is slidably connected of inner support and support arm, described inner support and support arm are slidably connected by a guide rail.
As the another kind of inner support and the support arm mode that is slidably connected, described inner support and support arm are slidably connected by inner core and the outer tube structure that cooperatively interacts.
As improvement of the present utility model, described self-defined type Portable mattress soft durometer measuring instrument further comprise one zero point surface plate, described zero point, surface plate was positioned over the surface of mattress, the short transverse of surface plate is provided with a hollow slots that is complementary with support arm at zero point along this, and support arm is fixed on the sidewall of this hollow slots.
Preferably, described microprocessor is single-chip microcomputer.
Preferably, described control panel further comprises a hummer, and described hummer is electrically connected at the output terminal of microprocessor.
Preferably, all be electrically connected an A/D converter between described displacement transducer and microprocessor and between pressure transducer and microprocessor.
The utility model has the advantage of:
1, coordinate with displacement transducer by pressure transducer, measure to press and fall into the degree of depth (being displacement) with pressure history, fall into the degree of depth with the pressure under certain pressure and judge soft durometer, by with microprocessor in preset value compare, realize the Quick Measurement of mattress soft durometer.
2, simple in structure, weight is little, be easy to carry about with one.
2, the user can input preset value by touch screen voluntarily, can realize determining according to self needs the rank of soft durometer, reaches the purpose that flexible foundation is fit to the mattress soft durometer system of oneself.
3, install one zero point surface plate, in measurement, this, surface plate not along with the pressure disk moves down, solved the problem that there is no displacement reference at zero point as the reference plane at zero point, improved and measured precision.
Description of drawings
Fig. 1 is the structural representation of the self-defined type Portable mattress of the utility model soft durometer measuring instrument;
Fig. 2 is that the self-defined type Portable mattress of the utility model soft durometer measuring instrument uses the status architecture schematic diagram;
Fig. 3 is the electric theory diagram of control panel in Fig. 1;
Fig. 4 falls into the degree of depth with the change curve of pressure for pressing.
Wherein: 10, handle; 20, displacement transducer; 21, displacement transducer connecting link; 30, pressure transducer; 31, coupling shaft on pressure transducer; 32, coupling shaft under pressure transducer; 40, pressure disk; 50, control panel; 51, microprocessor; 52, touch screen; 53, A/D converter; 54, A/D converter; 55, hummer; 60, mattress; 70, zero point surface plate; 80, inner support; 90, support arm.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
as Figure 1-3, self-defined type Portable mattress soft durometer measuring instrument, it comprises be used to the pressure transducer 30 that obtains the pressure signal when mattress is exerted oneself, be used for obtaining the described displacement transducer 20 that firmly mattress surface is caused the displacement signal of depression, and control panel 50, this control panel 50 comprises be used to receiving described pressure signal and displacement signal, and the microprocessor 51 of comparing in conjunction with pressure signal and displacement signal and the preset value that is provided with in it, and be used for the input preset value to microprocessor, and the touch screen 52 that the result of described comparison is shown.
The utility model coordinates with displacement transducer 20 by pressure transducer 30, the pressure of measuring mattress falls into the degree of depth (being displacement) with pressure history, fall into the degree of depth with the pressure under certain pressure and judge soft durometer, by with microprocessor in preset value compare, realize the Quick Measurement of mattress soft durometer, set up a Portable mattress soft durometer surveying instrument with low cost.In the utility model preferred embodiment, microprocessor 51 adopts low-cost single-chip microcomputer such as AT89C51 etc.
as shown in Figure 3, recording this Portable mattress soft durometer surveying instrument presses in the process of mattress, the pressure of each point and pressure fall into the change in displacement value, convert pressure signal and displacement signal to electric signal by the A/D converter 54 between the A/D converter 53 between pressure transducer 30 and microprocessor 51 and displacement transducer 20 and microprocessor 51 respectively, obtained pressing by microprocessor 51 and fall into the degree of depth with pressure history, i.e. corresponding relation between this pressure signal and displacement signal, touch screen 52 can be presented under certain pressure, shift value in displacement signal and preset value is compared, directly show the soft durometer value, this is the numerical value of a radix point of an one digit number band, as 3.2, 4.5 etc., certainly, this touch screen 52 can also intuitively show the cup depth to mattress under the firmly size of mattress and this power, the user can carry out according to the cup depth to mattress under exert oneself size and this power of mattress the preset value input of self.
as improvement of the present utility model, self-defined type Portable mattress soft durometer measuring instrument also comprises inner support 80, support arm 90, handle 10, on pressure transducer, coupling shaft 31, under pressure transducer, coupling shaft 32, on pressure transducer, coupling shaft 31 is fixedly connected between the upper end and handle 10 of pressure transducer 30, under pressure transducer, the upper end of coupling shaft 32 is fixedly connected on the lower end of pressure transducer 30, its lower end acts on the surface of mattress 60, inner support 80 fixedly sleeved on pressure transducer the periphery of coupling shaft 31, inner support 80 is arranged at the inside of support arm 90 and is slidably connected with support arm 90, inner support 80 and support arm 90 are realized being slidably connected by a guide rail or the chute that cooperatively interacts and bulge-structure, certainly, also can adopt the inner/outer tube socket to realize being slidably connected relative to the smooth structure that moves, control panel 50 is installed on support arm 90, displacement transducer 20 is fixed on inner support 80, the telescopic shaft of this displacement transducer 20 is fixed on support arm by a displacement transducer connecting link 21.Can find out from above-mentioned structure, it is simple in structure, weight is little, can hold 10 pairs of mattresses of handle during use firmly, realizes the measurement of soft durometer, also can hold this handle when carrying and carry.
In the utility model preferred embodiment, 90 of inner support 80 and support arms play a relative motion, measure the effect that falls into distance of pressing, so, inner support 80 and support arm 90 can be circular, can be also square, perhaps other shape, as long as guarantee disk when pressing down, can make displacement transducer 20 produce one with mattress 60 surfaces between distance realize measuring and press the sunken degree of depth to get final product.
In fact, real human body to the impression of soft durometer is, under a certain dynamics pressure, presses to fall into and darker feels softer, and certainly, the different people of body weight is different to the impression of soft or hard.So, under our pressure transducer, the lower end of coupling shaft 32 is fixedly connected with a pressure disk 40 and comes the cup depth of comparison mattress 60 with given pressure as benchmark, and pressure disk 40 uses GB10807-2006 flexible foam polymeric materials to press the normal disc that falls into the diameter 20CM that stipulates in the performance test standards.
Directly step on the measuring error that causes when preventing from measuring on mattress, as improvement of the present utility model, this self-defined type Portable mattress soft durometer measuring instrument comprises that also one be used for to set the surface plate 70 at zero point on plane at zero point, zero point, surface plate 70 was positioned over the surface of mattress, the short transverse of surface plate is provided with a hollow slots that is complementary with support arm 90 at zero point along this, support arm 90 is fixed on the sidewall of this hollow slots, and the bottom of support arm 90 is positioned on surface plate 70 lower plane at zero point.For fear of press falling into the district to surface plate 70 impact at zero point, zero point, surface plate 70 should reach certain span.Disc type surface plate at zero point due to pressure axis from human body too away from, be not easy firmly, so, in the utility model preferred embodiment, zero point, surface plate 70 employings were rectangular, its length is more than 60CM, width can be the 30CM left and right, long narrow square structure does not affect people's hand-held of standing and measures, install one zero point surface plate 70, in measurement, this at zero point surface plate as the reference plane not along with the pressure disk moves down, solved the problem that there is no displacement reference at zero point, improved and measure precision.
In addition, in the utility model preferred embodiment, control panel 50 further comprises a hummer 55, this hummer 55 is electrically connected at the output terminal of microprocessor 51, when pressure reaches the variation that elasticity that certain value (maximum pressure in preset value) may cause mattress can not reverse back, at this moment, hummer 55 is reported to the police.
Fig. 4 presses to fall into the degree of depth with the change curve of pressure, therefrom can see, when pressure was little, curve had intersection, and rule is not obvious.Considering from the actual angle of experiencing soft durometer of human body, should be that pressure is larger, presses the sunken degree of depth darker.Because body weight and the soft or hard impression of human body are different, we fall into the degree of depth with the pressure under 20CM pressure disk 40 and unify to describe the soft or hard impression, the people of normal type, usually the pressure of receptible mattress pad falls into the degree of depth and is approximately 100-150mm, be pressed onto 100mm Chinese and may just feel very soft, the occidentals may feel to be pressed onto 150mm and just calculate very soft.Because the present invention is an instrument that can customize soft durometer, the soft hardness grade that the user can self-defining needs.We under given calculating pressure point, press the sunken degree of depth larger to press the sunken degree of depth to estimate soft durometer, and mattress is softer.As can see from Figure 4, pressure is less than 300N the time, and curve law is not obvious, has to intersect and the place of contradiction, and soft mattress is when pressure is little, and sometimes seeming, it is sunken as also to lack to press than hard mattress.But, just more regular after having crossed 300N, be all to press to fall into larger softer of the degree of depth basically.We are with 300N-400N be defined as the sinking degree of depth regular zone, and each spot pressure in this scope can be used for relatively pressing the sunken degree of depth.
The pressure when user can decide maximum softness in its sole discretion falls into the degree of depth, for example, the softest first level definition is fallen into 120mm for pressing, if he wants to be divided into six grades, every one-level is 20mm, if he wants to be divided into Pyatyi, every grade of sunken degree of depth of pressure is 24mm, fall into the degree of depth in order to try to achieve to press, we also must specify with the pressure under which pressure and fall into the degree of depth as the standard of comparison of soft hardness grade, in Fig. 4, although determine that it is one-level that every pressure falls into 20mm, but, relatively to press spot pressure 15,16,17 times and fall into the degree of depth, the soft durometer that obtains is different.illustrate, we selected 340N is the calculating pressure point in experiment, pressure under 340N pressure falls into the degree of depth as the soft durometer grade scale, determine wishing first that the pressure of soft that one-level falls into the degree of depth is what, for example select the softest one-level to fall into 140mm for pressing, determine again to think minute how many levels, for example be divided into seven grades, the differential of so every one-level is 20mm, so, 0-20mm is one-level (superhard), 20-40mm is secondary (firmly), 40-60mm is three grades (slightly hard), 60-80mm be level Four (in), 80-100mm is Pyatyi (slightly soft), 100-120mm is six grades (soft), 120-140 is seven grades (ultra-softs).Every pressure falls into the 2mm softness increases by 0.1.The user can select soft durometer differential voluntarily, revises measured pressure value, sets up minute progression of oneself, sets up neatly the soft durometer system of oneself by revising these parameters.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.