Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But, the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is to make to this practicality newly
It is more thorough comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of one or more related Listed Items.
For example, a kind of pin hole filter core, including:Filter element body, the filter element body has columnar structured, the filter core sheet
Hollow-core construction is set in the middle part of body, the filter element body includes wall portion, and the wall portion has inner surface and outer surface, described
Inner surface has smooth surface structure, and the outer surface offers some filter bores, and the filter bores are by the outside table
Inner surface depression towards the filter element body is set, and the depth of the filter bores is less than the inner surface and described outer
The distance between side surface, the width of the filter bores is from one end close to the outer surface to close to the inner surface
One end is gradually reduced.
For example, a kind of pin hole filter core, including filter element body, filter element body has columnar structured, and cylindrical shape has wall portion
With two bottoms, cylindrical shape is further opened with hollow-core construction, for example, the hollow-core construction penetrates two bottoms;And for example, cylindrical shape has
Axis, hollow-core construction is the cylindrical structure with axis, and columnar axis is overlapped with the axis of hollow-core construction
Set;For example, the cross section of the wall portion is annular, i.e., the section perpendicular to axis of described wall portion is annular;Example
Such as, the cross section of the inner surface of the wall portion is same circle;And for example, the cross section of the outer surface of the wall portion is straight
Footpath change circle, for example, diameter change be in certain number range even variation, and for example, diameter change be one just
Change in the range of chord curve;For example, as shown in Figure 1, Figure 2 and Figure 3, it is the pin hole filter core 10 of an embodiment, including:Filter core sheet
Body 100, the filter element body 100 is set to hollow-core construction, for example, institute with columnar structured in the middle part of the filter element body 100
Stating filter element body 100 includes wall portion 110, for example, the wall portion 110 has inner surface 111 and outer surface 112, for example, institute
Inner surface 111 is stated with smooth surface structure, the outer surface 112 offers some filter bores 113, the filter bores
The 113 direction depression from the outer surface 112 to the inner surface 111 of the filter element body 100 is set, and the filter bores
113 depth is less than the distance between the inner surface 111 and described outer surface 112, for example, the inner surface 111
With the thickness that the distance between the outer surface 112 is wall portion 110, because the depth of the filter bores 113 is less than wall portion 110
Thickness, then the filter bores 113 do not penetrate the wall portion 110, i.e., the filter bores 113 are opened in wall portion 110 close to outer surface
112 position, for example, the width of the filter bores 113 is from one end close to the outer surface 112 to close to the inner side table
The one end in face 111 is gradually reduced.For example, the smooth surface structure is the side of cylinder or the side of round estrade.And for example,
The wave stripe is sinusoidal waveform.
For example, as shown in figure 1, the radial section of the inner surface 111 is circle, for example, the inner side table of the wall portion 110
The radial section in face 111 is circle, for example, the smooth surface structure is smooth circular structure, for example, the filter element body 100
Radial section be annular.
Specifically, by being set in the outer surface 112 of filter element body 100 outside filter bores 113, increase filter element body 100
The area of side so that adsorption capacity increase of the filter element body 100 to solid particle, and add and liquid contact surface product so that
Liquid can quickly and efficiently infiltrate through the wall portion 110 of filter element body 100, in addition, the filter bores 113 that outer surface 112 is opened up
So that liquid is penetrated into wall portion 110 from multiple angles, the infiltration of liquid is effectively disperseed, and then solid particle is divided
Dissipate, be effectively isolated solid particle, the liquid for penetrating into wall portion 110 then oozes out from inner surface 111, and the inner side table of wall portion 110
Face 111 is set to smooth surface structure, i.e. the inner surface 111 and aporate or concave/convex-shaped structure, and it is set in smooth shape, this
Sample, enables to the liquid in wall portion 110 to be oozed out from inner surface 111 towards unified direction so that the leaching rate of liquid
Faster, ooze out it is more efficient, and then cause filter element body 100 filter efficiency it is higher, liquid was carried out by said structure
Filter, so as to effectively improve the filter efficiency of filter core, and causes filter effect more preferably.
Further, since outer surface 112 has opened up filter bores 113 so that the area increase of outer surface 112, add
With the contact area of liquid, and then allow fluid to efficiently penetrate into wall portion 110, filter efficiency is improved, in order to further carry
Filtration efficiency, in one embodiment, incorporated by reference to Fig. 3 and Fig. 4, the filter bores 113 are in the axial direction of the filter element body 100
On section be triangle, it should be understood that the depth direction of the filter bores 113 be the filter bores 113 longitudinal direction, for example,
The axial direction of the filter element body 100 is the longitudinal direction of the filter bores 113, for example, the longitudinal cross-section of the filter bores 113 is triangle
Shape, i.e., after filter element body 100 is splitted along the axial direction of filter element body 100, the section of the filter bores 113 on corresponding hatching
For triangle, because the section of filter bores 113 is triangle so that the width of the hole wall of filter bores 113 gradually subtracts from outside to inside
Small, on the one hand, to enable to the area of outer surface 112 to increase, increase and the contact area of liquid improve and penetrate into efficiency, separately
On the one hand, with filter bores 113 depth increase, the width of filter bores 113 reduces, and hole wall is obliquely installed, and is conducive to barrier
Solid particle, and then cause filter effect more preferably.
For the surface area of the hole wall that further increases filter bores 113, increase filter area, in one embodiment, such as
Shown in Fig. 2, the filter bores 113 are being square, example along the section on the direction parallel to the plane of the outer surface 112
Such as, the lateral cross section of the filter bores 113 is square, and so the edge of the filter bores 113 is the hole wall of four equal areas, and
Each hole wall is triangle, can be effectively increased the surface area of the hole wall of filter bores 113, and then increase the mistake of outer surface 112
Filtering surface is accumulated, and improves filter efficiency, and because the direction of four side walls is different so that liquid penetrates into wall portion 110 from different directions, point
The infiltration direction of dispersion liquid body, and then cause filter effect more preferably.
In a further embodiment, the lateral cross section of the filter bores 113 is that circle, the i.e. filter bores 113 have taper
Structure, the filter bores 113 of pyramidal structure enable to liquid more can dispersedly penetrate into wall portion 110 so that filter effect
More preferably.
In order that filter element body filter effect more preferably, for example, the material of the filter element body be PP cottons, for example, institute
The material for stating filter element body is polyester fiber, and PP cottons have good permeance property, and can effectively obstruct solid particle, and then
So that the filter effect of filter element body is more preferably, and make it that the filter efficiency of filter element body is higher.
In order to further improve filter efficiency, and cause filter effect more preferably, for example, the density of the wall portion is gradually changed
Set, be gradually reduced for example, the density of wall portion has close to the position of the outer surface to the position close to the inner surface,
That is, density of the wall portion in the position close to outer surface is larger, and the density close to the position of inner surface is smaller, by
The middle part of filter element body is penetrated into by the outside of filter element body in liquid, therefore, the pressure of the liquid on the outside of filter element body is more
Greatly, so, even if wall portion is bigger close to the density of outer surface, liquid also can efficiently penetrate into wall portion, and wall portion is close to outside
The density on surface is larger, is conducive to further obstructing the solid particle of solid particle, especially small volume, and then cause filtering
It is better, and the density of inner surface is smaller, be conducive to liquid quickly through and oozing out, enter from the inner surface of wall portion
Enter the middle part of filter element body, in such manner, it is possible to further improve filter efficiency, and cause filter effect more preferably.
For example, the wall portion includes the first filter layer and the second filter layer, for example, first filter layer be arranged at it is described
The outside of second filter layer, and first filter layer and second filter layer connection, first filter layer and described the
The material of two filter layers is identical to be set, and the different setting of density of first filter layer and second filter layer, for example, institute
State the first filter layer density be more than second filter layer density, so, due to outside the first filter layer density compared with
Greatly, the less solid particle of volume can be obstructed so that more preferably, and the density of the second filter layer is smaller, can make for filter effect
Liquid can be quickly through, and then filter efficiency is improved, so as to improve filter efficiency, causes filter effect more again
It is good.For example, the filter bores are opened in side of first filter layer away from second filter layer, for example, described first
Filter layer is identical with the thickness of second filter layer, and for example, the thickness phase of first filter layer and second filter layer
It is different, for example, the thickness of first filter layer is more than the thickness of second filter layer, for example, the thickness of first filter layer
The ratio between thickness of degree and second filter layer is 1.5:1.
In order to improve the hardness of filter element body, in one embodiment, supporting network is provided with the wall portion, for example, institute
State supporting network to be arranged between first filter layer and second filter layer, for example, the supporting network has mesh, example
Such as, the supporting network is stainless steel supporting network, and so, the supporting network can effectively strengthen the intensity of wall portion so that filter element body is not
Easy deformation, extends the service life of filter element body, and the supporting network will not be that infiltration is impacted to wall portion, therefore, support
Net will not be impacted to the filter efficiency of wall portion.
In order to allow fluid to equably penetrate into filter element body 100 and filter out so that the filter effect of filter element body 100
More preferably, in one embodiment, incorporated by reference to Fig. 1, Fig. 2 and Fig. 3, circle of some filter bores 113 along the outer surface 112
Circumferential direction is placed equidistant, for example, axial direction of some filter bores 113 along the filter element body 100 is placed equidistant, for example, respectively
Distance between filter bores 113 in the distance and circumferencial direction of axial direction is equal, i.e., each filter bores 113 are set in isometric matrix distribution
The outer surface 112 of filter element body 100 is placed in, in such manner, it is possible to so that each filter bores 113 are evenly distributed in filter element body 100,
And then filter element body 100 is reduced in the filter efficiency difference of each position, and then allow fluid to equably penetrate into filter core
Body 100 is simultaneously filtered out so that the filter effect of filter element body 100 is more preferably.
In order to further such that liquid can equably penetrate into filter element body 100 and filter out so that the mistake of filter element body 100
Filter is better, for example, the width of each filter bores 113 is identical, for example, the shape of each filter bores 113 is identical, for example, mistake
The lateral cross section of filter opening 113 is square, and the width of filter bores 113 is the length of the length of side of the lateral cross section of filter bores 113, example
Such as, the length of the length of side in lateral cross section of each filter bores 113 in same depth is identical, for example, the lateral cross section of filter bores 113
For circle, the width of filter bores 113 is the aperture of the lateral cross section of filter bores 113, for example, each filter bores 113 are in same depth
The aperture of lateral cross section on degree is identical, so, and because the volume of each filter bores 113 is identical, surface area is identical so that each filtering
The filter efficiency in hole 113 is identical, and then allows fluid to equably penetrate into filter element body 100 and filter out so that filter element body
100 filter effect is more preferably.
For example, the ratio between the distance between the Breadth Maximum of each filter bores 113 and filter bores 113 are 1:(1~1.5), for example,
The ratio between the distance between Breadth Maximum and filter bores 113 of each filter bores 113 are 1:1, specifically, the maximum of each filter bores 113
Width is the width of the length of side in section of the filter bores 113 on outer surface 112, and the Breadth Maximum of filter bores 113 is too big, and mistake
The distance between filter opening 113 is too small, then easily cause the structural instability of outer surface 112, and the Breadth Maximum of filter bores 113 compared with
Small, the distance between filter bores 113 are too big, then make it that the filter core of filter element body 100 is inefficient, and effect is not good, therefore, this
In embodiment, the ratio between the distance between Breadth Maximum and filter bores 113 of each filter bores 113 are 1:1, i.e., each filter bores 113
Breadth Maximum is equal with the distance between filter bores 113, so that filter bores 113 can be evenly distributed in filter element body
On 100, and effectively improve the area of the outer surface 112 of filter element body 100 so that filter effect is more preferably, and more efficient, this
Outside, additionally it is possible to which, so that hardness of the filter element body 100 close to the position of outer surface 112 is bigger, structure is more stable.
It should be understood that the depth of filter bores 113 is bigger, then the area of the outer surface 112 of filter element body 100 is got over
Greatly, then filter efficiency is higher, but the depth of filter bores 113 is too big, then causes the average thickness of wall portion 110 to reduce, be unfavorable for wall portion
110 depth-type filtration, causes filter effect not good, therefore, in order to improve filter efficiency, and avoids causing shadow to filter effect
Ring, in one embodiment, the ratio between minimum thickness of the depth of the filter bores 113 and the wall portion 110 is 1:(4.5~
7.5), it is worth mentioning at this point that, the minimum thickness of wall portion 110 for wall portion 110 inner surface 111 to the bosom of filter bores 113
Distance, that is, outer surface 112 and inner surface 111 distance and filter bores 113 depth difference, for example, the mistake
The ratio between minimum thickness of the depth of filter opening 113 and the wall portion 110 is 1:(5.5~6.5), for example, the depth of the filter bores 113
The ratio between degree and the minimum thickness of the wall portion 110 are 1:6.In the present embodiment, the depth of filter bores 113 be only wall portion 110 most
/ 6th of small thickness, the depth enables to filter bores 113 that there is larger volume and hole wall surface to accumulate, it is possible to increase outer
The area of side surface 112, improves filter efficiency, and because the minimum thickness of wall portion 110 is larger, enable to wall portion 110 to liquid
Body carries out depth-type filtration, is adequately isolated solid particle, and then cause filter effect more preferably.
It is noted that the thickness of wall portion 110 is bigger, then the filter effect of filter element body 100 is better, but filter efficiency
Then reduce, the thickness of wall portion 110 is smaller, then liquid penetrates into that the speed that filters out is faster, and filter effect is higher, but filter effect then compared with
Difference, in order that filter element body 100 filter effect more preferably, and filter efficiency improve, in one embodiment, the filter core sheet
The ratio between internal diameter and external diameter of body 100 are 1:(2~2.5).Specifically, the external diameter of filter element body 100 and the difference of internal diameter are wall portion 110
Maximum gauge, that is, the distance between outer surface 112 and inner surface 111, in the present embodiment, filter element body 100
The ratio between internal diameter and external diameter are 1:(2~2.5) enable to the maximum gauge of wall portion 110 moderate, can effective filtering solid particles,
So that the filter effect of filter element body 100 is preferably, and filter efficiency is higher, for example, the internal diameter and external diameter of the filter element body 100
The ratio between be 1:(2~2.2), for example, the ratio between the internal diameter of the filter element body 100 and external diameter are 1:2, in the present embodiment, wall portion 110
Maximum gauge be external diameter half, being capable of further effective filtering solid particles so that the filter effect of filter element body 100 is more
Good, filter efficiency is higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.