CN109350853A - A kind of adjustable magnetic mat - Google Patents

Abstract

A kind of adjustable magnetic mat, it is related to healthy articles field at home, including upper layer pad and adjusting pad, the adjusting pad is connected to the lower surface of the upper layer pad, the adjusting pad includes the switching part for adjusting magnetic direction, the switching part includes all over sliding slot, every sliding straight panel, every slip circle plate and energization column, there are also hand driving levers on being located at the energization column every slip circle plate inner space, the hand driving lever is the straight-bar extended straight down from the lower surface of the energization column, it further include bottom pad plate, the bottom pad plate is the thin plate extended downwardly from the lower surface of the switching part, there is back sliding slot on the bottom pad plate, described time sliding slot is with described every the consistent annulus through slot of slip circle board diameter, the hand driving lever can move in described time sliding slot.

Description

A kind of adjustable magnetic mat

Technical field

The present invention relates to healthy articles fields at home, and in particular to a kind of adjustable magnetic mat.

Background technique

In recent years, people increasingly pay attention to the promotion of quality of the life, and for eating, wearing, live, row everyway gradually becomes to say Study carefully, especially more and more people's concern and attention have played health, for example in cold winter, many people are by removing magnetite Sweat steams shop to loosen tight body, and receives magnetite magnetic field and recuperate to promote energy, for another example gradually appears magnetic in life at home Pole feet massage apparatus adds magnetic field to promote blood circulation, generally believes that magnetic field is adjustable instantly while by foot massage Vivo biodistribution magnetic field generates induction micro-current, changes permeability of cell membrane, the activity for changing certain enzymes and expansion blood vessel, accelerates Blood flow, not only can achieve such as relieve pain, auxiliary therapeutic action of reducing swelling, but also rest matter can be effectively improved using magnetic field Amount, such as application No. is the Chinese patent application files of CN201610559385.4 to disclose a kind of strong magnetic comb of constant rotation, including " comb chassis and comb teeth block, the comb teeth block are removably connected to comb chassis, and the back side of the comb chassis, which is equipped with, rotates strong magnetic dress Setting ... the strong magnetic device of the rotation includes direct current generator and magnet, and the magnet is connected by the shaft in direct current generator It is connected to one end of direct current generator ", which promotes the blood circulation on head by increasing magnetic field to comb, still " institute The comb chassis edge stated is equipped with indicator light and switch ... is additionally provided with comb handle, and the comb handle is equipped with internal battery and charging Mouthful ", it is adjusted come logical close of switching field with strong and weak by mechanical switch, it is easy to there is structural failure, it can not be real well Now it is used for a long time.

Summary of the invention

The object of the present invention is to provide a kind of adjustable magnetic mats, pass through the variable magnetic field of the setting direction inside magnetic mat The effect of magnetic therapy is promoted, and completes the change to magnetic direction by simple structure, reduces the degree of structural failure.

Above-mentioned technical purpose of the invention has the technical scheme that a kind of adjustable magnetic mat, In, including upper layer is padded and adjusting pad, the adjusting pad is connected to the lower surface of the upper layer pad, and the adjusting pad includes for adjusting Save the switching part of magnetic direction, the switching part include all over sliding slot, every sliding straight panel, every slip circle plate and energization column, it is described all over sliding slot For the toroidal cavity being recessed straight up from the lower surface of the adjusting pad, it is described every sliding straight panel be described time sliding slot of connection The surface plate of inside and outside wall surface, it is described every slip circle plate be extend straight down from the upper surface all over sliding slot and with described time The consistent curved panel of the crooked radian of sliding slot, two energization columns are separately connected by conductor wire and insulation line, two institutes It states energization column and is located at the two sides every sliding straight panel, and be located at described every the not ipsilateral of slip circle plate, the energization Column is cylindrical conductive bar, and there are also hand driving lever on being located at the energization column every slip circle plate inner space, the hand is dialled Bar is the straight-bar extended straight down from the lower surface of the energization column, further includes bottom pad plate, and the bottom pad plate is to cut described in Change the thin plate that the lower surface in portion extends downwardly, there is back sliding slot on the bottom pad plate, described time sliding slot be with it is described straight every slip circle plate The consistent annulus through slot of diameter, the hand driving lever can move in described time sliding slot.

The adjusting pad is to be powered to generating magnetic field by the energization column and the conductor wire of connection, for example, original state When, it is connected by conductor wire and insulation line (or insulated wire) between the energization column, wherein conductor wire at this time is along institute It states and is disposed to extend on the outside of slip circle plate, the insulation line extends two energizations of connection from the inside every slip circle plate Copper wire can be used in column, the conductor wire, and rubber can be used in the insulation line, and the energization column passes through wire connecting power, One connection positive pole, a connection power cathode, power supply can be battery, can be embedded in the lower surface of the adjusting pad The neutral gear or etui of one placement power supply form closure when energized between the energization column and the conductor wire Circuit, electric current are flowed to the energization column of the other end by the energization column of one end, since the shape of the conductor wire is annular, Therefore magnetic field can be generated, at this point, if desired change the direction in magnetic field, can operate be located at it is described described in the slip circle plate inner space The hand driving lever is avoided sliding by the hand driving lever on energization column along described on the inside of slip circle plate, is connected to described logical The insulation line between electric column squeezes the column that is powered described in the other side, so that the energization column of two sides carries out different directions respectively Moving in rotation, for example be located at the energization column on the inside of slip circle plate and carry out up time every slip circle plate inner surface along described Needle rotation, is rotated along described every slip circle plate outer surface counterclockwise positioned at the energization column on the outside of slip circle plate, When the hand driving lever can not stop movement when moving along described time sliding slot between the energization column, at this time two it is described logical Position between electric column is relative to initial position tune, and the flow direction of electric current also becomes counterclockwise from clockwise, the direction in magnetic field With inceptive direction on the contrary, to achieve the purpose that change magnetic direction, and it is this by being changed with the hand operation hand driving lever The mode of varying magnetic field is simple and direct, can clearly be operated, and circuit caused by can also switching to avoid circuit is unstable existing As.

Preferably, the upper layer pad includes resilient support layer, the resilient support layer includes supporting element and placed cavity, institute Stating placed cavity is the cylindrical cavity extended vertically, and the supporting element is the spring being attached in the side wall surface of the placed cavity.

The supporting element can be spring, be placed in the placed cavity, and spring is dimensioned slightly smaller than the placed cavity Bore, so that the outer wall of spring can be preferably supported on the wall surface of the placed cavity, the resilient support layer can be with Preferably prevent the upper layer pad since the deformation generated by differential pressure occurs, because the placed cavity can be set It is multiple, and arranged in turn, it is larger that the elastic coefficient that is multiple or placing is set in the more region of stress, thus Bear bigger pressure.

Preferably, further including that gas fills portion, it includes that gas fills item, sets a chamber and fill for filling item to the gas that the gas, which fills portion, The inflating port of gas, a chamber of setting includes setting the horizontal chamber of item and setting item to erect chamber, and the horizontal chamber of item of setting is from the inflating port to described The close horizontal-extending cavity of cavity direction is placed, the perpendicular chamber of item of setting extends straight up to set the end of the horizontal chamber of item described in The cavity of the placed cavity is connected, it is depositing along the extending direction arrangement for setting a chamber from the inflating port that the gas, which fills item, Gas bar.

A chamber of setting is connected to the placed cavity, and the gas fills item and sets the intracavitary extension of item to described from the inflating port In to the placed cavity, item inflation is filled to the gas by the inflating port, the adjustable gas fills the saturation degree of item, thus Adjust the hardness of upper layer pad, when filled to the gas fill more gas in item when, the upper layer pad will become more Add " hard ", on the contrary, when filled to the gas fill less gas in item when, upper layer pad will become more " softness ", change The gas fills the comfort level of the adjustable magnetic mat at most in item, and two can cooperate the supporting element to improve The supportive for stating upper layer pad can generate downwards an extruding force especially when the supporting element or this spring are by excessive compression, The lower end of spring can push down the gas and fill item, so that the gas located in the placement chamber fills the gas in item part by " lock Extremely ", i.e. spring pushes down the gas and fills item and do not allow gas to flee from, when the placed cavity is by excessive compression, that a part it is described Gas fills that item is extruded and pressure becomes larger, to support the stress of the upper layer pad.

Preferably, the inflating port fills portion including in and fills portion outside, the boring of one end open is in the interior portion of filling Cylindrical drum, it is described in fill the open end in portion and connect the gas and fill item, the other end is solid sealing, and the outer portion of filling is to be located on Fill the cylindrical drum of on the outside of portion, one end open boring in described, it is described in fill portion include it is interior fill sliding slot, it is described outer to fill portion Including filling draw runner outside, the interior sliding slot that fills includes axial groove and radial slot, and the radial slot is around the interior appearance for filling portion Annular groove towards sunken inside, the axial groove are that the vertical radial slot is recessed to the vertical bar that a side extends is filled far from the gas Slot, it is described it is outer fill draw runner be it is vertical it is described it is outer fill the ring rib that the open end inner surface in portion extends to the radial slot, it is described Inside filling has inner via hole in portion, the inner via hole is to fill the outer surface in portion and wearing for the interior inner surface for filling portion in connection is described Hole, outer fill have accessibke porosity in portion, the accessibke porosity is the perforation through the outer wall surface for filling portion.

Can by rotate it is described it is outer fill portion and turn on or off the inflating port that the gas fills item, when needing to the gas It when filling the interior inflation of item or deflating, rotates and fills portion outside described, slid into so that filling draw runner outside described and being rotated in the radial slot It can enter in the axial groove, at this point, force draws outer fill outside portion, so that filling draw runner in the axial groove outside described Sliding can fill the accessibke porosity of overlapping and the inner via hole at this time until the inner via hole and the accessibke porosity are overlapped Gas or the gas for allowing the gas to fill in item are freely released, when the gas that the gas fills in item reaches desired value, then will be described Portion's push-in axial trench bottom is filled outside, rotates and fills portion outside described, so that the outer draw runner that fills turns in the radial slot, makes it It cannot be further continued for sliding to the axial groove, so that the inner via hole and the accessibke porosity can not be made to be overlapped and carry out the gas Fill the filling and release of gas in item.

Preferably, further including the outer stifled portion for blocking the inner via hole, the outer stifled portion is to fill portion outside from described Cambered surface protrusion grain of the inner surface to the close protrusion of the inner via hole.

The outer stifled portion can be embedded in the inner via hole in outer fill when draw runner is located in the radial slot, avoid institute It states gas and fills air leakage in item, guarantee that the gas fills the stable gas pressure in item.

In conclusion the present invention has the advantages that.

1. promoting the effect of magnetic therapy by the variable magnetic field of the setting direction inside magnetic mat, and by simply tying Structure completes the change to magnetic direction, reduces the degree of structural failure.

2. the saturation degree of item can be filled by the adjusting gas to adjust the hardness of the upper layer pad.

Realize that the gas fills gas in item and changes by rotating and moving 3. the gas fills portion.

Detailed description of the invention

Fig. 1 is that regulatable magnetic force pads overall schematic.

Fig. 2 is that regulatable magnetic force pads bottom view.

Fig. 3 is the view that Fig. 2 removes bottom pad plate.

Fig. 4 is resilient support layer schematic diagram.

Fig. 5 is gas injection port structure schematic diagram.

Fig. 6 is multi-gear switch schematic diagram.

In figure: 11, upper layer is padded, 12, adjusting pad, and 21, all over sliding slot, 22, every sliding straight panel, 23, every slip circle plate, 25, energization column, 26, return sliding slot, 31, supporting element, 32, placed cavity, 41, gas fill item, 51, it is interior fill portion, 52, fill portion, 61, Qiang Nengjian, 62, weak energy outside Key.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Embodiment 1 pads overall schematic as shown in Figure 1 for regulatable magnetic force.A kind of adjustable magnetic mat as shown in Figure 1, Figure 2, is schemed Shown in 3, wherein including upper layer pad 11 and adjusting pad 12, adjusting pad 12 is connected to the lower surface of upper layer pad 11, and adjusting pad 12 includes For adjusting the switching part of magnetic direction, switching part include all over sliding slot 21, every sliding straight panel 22, every slip circle plate 23 and energization column 25, The toroidal cavity being recessed straight up all over the lower surface that sliding slot 21 is self-adjusting pad 12 is connection all over sliding slot 21 every sliding straight panel 22 Inside and outside wall surface surface plate, every slip circle plate 23 be extend straight down from the upper surface all over sliding slot 21 and with all over sliding slot 21 The consistent curved panel of crooked radian, two energization columns 25 are separately connected by conductor wire and insulation line, two energization columns 25 It is located at every the two sides of sliding straight panel 22, and is located at every the not ipsilateral of slip circle plate 23, energization column 25 is cylindrical conductive Bar is being located at every, there are also hand driving lever, hand driving lever is from the lower surface of energization column 25 on the energization column 25 of 23 inner space of slip circle plate The straight-bar extended straight down, further includes bottom pad plate, and bottom pad plate is the thin plate that the lower surface in adaptive switched portion extends downwardly, bottom pad plate On have back sliding slot 26, returning sliding slot 26 is with every the consistent annulus through slot of 23 diameter of slip circle plate, and hand driving lever can move in returning sliding slot 26 It is dynamic.Adjusting pad 12 is the generation magnetic field that is powered by energization column 25 and the conductor wire of connection, for example, when original state, energization column It is connected between 25 by conductor wire and insulation line (or insulated wire), wherein conductor wire at this time is along every the outer of slip circle plate 23 Side is disposed to extend, and insulation line extends two energization columns 25 of connection from every the inside of slip circle plate 23, and copper wire can be used in conductor wire, absolutely Electric wire can be used rubber, and energization column 25 is by wire connecting power, a connection positive pole, a connection power cathode, Power supply can be battery, can be embedded in the neutral gear or etui of a placement power supply in the lower surface of adjusting pad 12, work as connection When power supply, closed circuit is formed between energization column 25 and conductor wire, electric current is flowed to the energization of the other end by the energization column 25 of one end Column 25 since the shape of conductor wire is annular, therefore can generate magnetic field, at this point, if desired change the direction in magnetic field, it can be with operative position Hand driving lever is avoided sliding by the hand driving lever on the energization column 25 every 23 inner space of slip circle plate along every the inside of slip circle plate 23 Dynamic, the insulation line being connected between energization column 25 squeezes other side energization column 25, so that the energization column 25 of two sides carries out not respectively Equidirectional moving in rotation, such as the energization column 25 being located at every 23 inside of slip circle plate carry out up time along every 23 inner surface of slip circle plate Needle rotation is rotated positioned at the energization column 25 every 23 outside of slip circle plate along every 23 outer surface of slip circle plate counterclockwise, when hand is dialled Bar can not stop movement, at this time the position phase between two energization columns 25 when moving along time sliding slot 26 between energization column 25 For initial position tune, the flow direction of electric current also from becoming clockwise counterclockwise, direction and the inceptive direction in magnetic field on the contrary, from And achieve the purpose that change magnetic direction, and this simple and direct by way of changing magnetic field with hand manipulator driving lever, It can clearly be operated, circuit wild effect caused by can also switching to avoid circuit.As shown in figure 4, upper layer pad 11 Including flexibly supporting layer, resilient support layer includes supporting element 31 and placed cavity 32, and placed cavity 32 is the cylindrical empty extended vertically Chamber, supporting element 31 are the spring being attached in the side wall surface of placed cavity 32.Supporting element 31 can be spring, be placed on placed cavity 32 It is interior, the bore for being dimensioned slightly smaller than placed cavity 32 of spring, so that the outer wall of spring can preferably be supported in placed cavity 32 Wall surface on, resilient support layer can preferably prevent upper layer pad 11 since the deformation that is generated by differential pressure occurs, Because placed cavity 32 can be set multiple, and arranged, be arranged multiple in the more region of stress or placed in turn The elastic coefficient is larger, to bear bigger pressure.It as shown in Figure 4, Figure 5, further include that gas fills portion, it includes that gas fills that gas, which fills portion, Item 41 sets a chamber and the inflating port for filling the inflation of item 41 to gas, and setting a chamber includes setting the horizontal chamber of item and setting item to erect chamber, sets the horizontal chamber of item For the horizontal-extending cavity close to 32 direction of placed cavity from inflating port, set item erect chamber be purchase by oneself the end of the horizontal chamber of item vertically to The upper cavity for extending connection placed cavity 32, it is to deposit gas bar along what the extending direction for setting a chamber was arranged from inflating port that gas, which fills item 41,. It sets a chamber to be connected to placed cavity 32, gas fills item 41, and item is intracavitary to be extended in placed cavity 32 to setting from inflating port, passes through inflating port It fills item 41 to gas to inflate, adjustable gas fills the saturation degree of item 41, thus to adjust the hardness of upper layer pad 11, when filling item to gas When filling more gas in 41, upper layer pad 11 will become more " hard ", on the contrary, filling less gas when filling in item 41 to gas When, upper layer pad 11 will become more " softness ", change gas and fill the comfortable of the adjustable magnetic mat at most in item 41 Degree, two can cooperate supporting element 31 to improve the supportive of upper layer pad 11, especially when supporting element 31 or this spring are excessive When extruding, an extruding force can be generated downwards, and the lower end of spring can push down gas and fill item 41, so that the gas being located in placed cavity 32 fills Gas in 41 part of item is by " locked ", i.e., spring, which pushes down gas and fills item 41, does not allow gas to flee from, when placed cavity 32 is by excessive compression When, gas of that a part fills that item 41 is extruded and pressure becomes larger, to support the stress of upper layer pad 11.As shown in figure 5, inflating port It fills portion 51 including interior and outside fills portion 52, fill portion 51 inside for the cylindrical drum of the boring of one end open, inside fill the open end in portion 51 Connection gas fills item 41, and the other end is solid sealing, fills the inside sky that portion 52 is 51 outside of portion is filled in being located on one end open outside The cylindrical drum of the heart inside fills portion 51 including interior and fills sliding slot, and filling portion 52 outside includes filling draw runner outside, and inside filling sliding slot includes axial groove and radial direction Slot, radial slot are to fill the annular groove that the outer surface in portion 51 is recessed inwardly around interior, and axial groove is that vertical radial slot is filled to far from gas The vertical bar groove that 41 side of item extends, filling draw runner outside is that the annular that the open end inner surface in portion 52 extends to radial slot is filled outside vertical Raised line, inside filling in portion 51 has inner via hole, and inner via hole is to fill the outer surface in portion 51 and the perforation of the interior inner surface for filling portion 51 in connection, Filling in portion 52 outside has accessibke porosity, and accessibke porosity is the perforation through the wall surface for filling portion 52 outside.It can be beaten by filling portion 52 outside rotating On or off, which is held one's breath, fills the inflating port of item 41, and when needing to fill inflation in item 41 to gas or deflating, rotation is outer to fill portion 52, so that Draw runner is filled outside rotate in radial slot and slide into and can enter in axial groove, at this point, force will fill drawing outside portion 52 outside, so that filling outside Draw runner slides in axial groove, until inner via hole and accessibke porosity are overlapped, can inflate at this time to the accessibke porosity and inner via hole of overlapping Or the gas for allowing gas to fill in item 41 is freely released, and is pushed away when the gas that gas fills in item 41 reaches desired value, then by portion 52 is filled outside Enter axial trench bottom, rotation is outer to fill portion 52, turns in radial slot so that filling draw runner outside, keeps it sliding from being further continued for slot in the axial direction It is dynamic, so that inner via hole and accessibke porosity can not be made to be overlapped and carry out filling and release that gas fills gas in item 41.It further include being used for The outer stifled portion of inner via hole is blocked, outer stifled portion is to fill the inner surface in portion 52 outside to the cambered surface protrusion grain of the close protrusion of inner via hole certainly.Outside Stifled portion can fill outside to be embedded in inner via hole when draw runner is located in radial slot, is avoided gas from filling air leakage in item 41, is guaranteed that gas fills Stable gas pressure in item 41.

As shown in fig. 6, multi-gear switch can also be arranged in the side of adjusting pad 12, multi-gear switch is connected by electric wire and is powered Column 25 realizes the change of magnetic force or magnetic field size, wherein the circuit form of multi-gear switch can use multi gear in the prior art Switching circuit, as vertical type electric fan common in household electrical appliances or wall-hanging electric fan, this kind of electric fan are typically provided on shell Multiple speed stages are available, be followed successively by it is strong, in, weak wind-force, therefore the multi-gear switch being located on 12 side of adjusting pad equally has There are many intensity buttons, and wherein multi-gear switch includes strong energy key 61 and weak energy key 62, by force the vertical view shape of energy key 61 and weak energy key 62 Shape is the opposite quadrant of one side, by force can on key 61 there are also strong identification slot, strong identification slot be improve oneself can key 61 appearance Vertical bar groove towards sunken inside, it is weak can on key 62 there are also weak identification slot, weak identification slot be from it is weak can key 62 appearance towards The quantity of the vertical bar groove of sunken inside, strong identification slot can be more than weak identification slot, in this case, when people touches by force can key 61 and weak When energy key 62, strong and weak key can be judged by the quantity of bar groove, at the same time, due to strong energy key 61 and weak energy key 62 Side surface be cambered surface, stress may be implemented in vertical bar groove, finger slippage when key is prevented, finally, can be strong Middle-grade key can be set between key 61 and weak energy key 62, the plan view shape of middle-grade key can be rectangle, and when being switched to middle-grade, magnetic field is big It is small to be located between energy key 61 by force and weak energy key 62.

Claims (5)

1. a kind of adjustable magnetic mat, which is characterized in that including upper layer pad (11) and adjusting pad (12), the adjusting pad (12) is even It connects in the lower surface of upper layer pad (11), the adjusting pad (12) includes the switching part for adjusting magnetic direction, described to cut Change portion include all over sliding slot (21), every sliding straight panel (22), every slip circle plate (23) and energization column (25), described time sliding slot (21) is from institute The toroidal cavity that the lower surface of adjusting pad (12) is recessed straight up is stated, it is described described all over sliding slot for connection every sliding straight panel (22) (21) surface plate of inside and outside wall surface, the upper surface for being certainly described time sliding slot (21) every slip circle plate (23) are prolonged straight down The consistent curved panel of crooked radian opening up and with described time sliding slot (21), two energization columns (25) pass through conductor wire It is separately connected with insulation line, two energization columns (25) are located at the two sides every sliding straight panel (22), and position respectively In described every the not ipsilateral of slip circle plate (23), the energization column (25) is cylindrical conductive bar, described every slip circle plate being located at (23) there are also hand driving lever on the energization column (25) of inner space, the hand driving lever is from the lower surface of the energization column (25) The straight-bar extended straight down further includes bottom pad plate, and the bottom pad plate is thin to extend downwardly from the lower surface of the switching part Plate has back sliding slot (26) on the bottom pad plate, and described time sliding slot (26) is with described every the consistent annulus of slip circle plate (23) diameter Through slot, the hand driving lever can move in described time sliding slot (26).

2. a kind of adjustable magnetic mat according to claim 1, which is characterized in that the upper layer pad (11) includes elasticity branch Layer is supportted, the resilient support layer includes supporting element (31) and placed cavity (32), and the placed cavity (32) is the cylinder extended vertically Shape cavity, the supporting element (31) are the spring being attached in the side wall surface of the placed cavity (32).

3. a kind of adjustable magnetic mat according to claim 2, which is characterized in that further include that gas fills portion, the gas fills portion Item (41) is filled including gas, sets a chamber and the inflating port for filling item (41) inflation to the gas, and a chamber of setting includes setting item cross Chamber erects chamber with item is set, and the horizontal chamber of item of setting is the horizontal-extending sky close to the placed cavity (32) direction from the inflating port Chamber, described to set item to erect chamber be to set the end of the horizontal chamber of item described in extend the cavity for connecting the placed cavity (32), institute straight up Stating gas to fill item (41) is to deposit gas bar along the extending direction arrangement for setting a chamber from the inflating port.

4. a kind of adjustable magnetic mat according to claim 3, which is characterized in that the inflating port fills portion (51) including interior With fill portion (52) outside, it is described in fill the cylindrical drum of the boring that portion (51) are one end open, it is described in fill the openings of portion (51) End connects the gas and fills item (41), and the other end is solid sealing, and described outer fill portion (52) are to be located in described to fill portion (51) outside The cylindrical drum of side, one end open boring, it is described in fill portion (51) include it is interior fill sliding slot, it is described outer to fill portion (52) and include Draw runner is filled outside, and the interior sliding slot that fills includes axial groove and radial slot, and the radial slot is around the interior appearance for filling portion (51) Annular groove towards sunken inside, the axial groove fill the straight of item (41) side extension to far from the gas for the vertical radial slot Groove, the outer draw runner that fills is vertical described outer to fill the convex annular that the open end inner surface in portion (52) extends to the radial slot Item, it is described in fill on portion (51) and have inner via hole, the inner via hole be the connection interior outer surface for filling portion (51) and described interior fills The perforation of the inner surface in portion (51), described fill on portion (52) outside have accessibke porosity, and the accessibke porosity is to fill portion (52) outside through described Wall surface perforation.

5. a kind of adjustable magnetic mat according to claim 4, which is characterized in that further include for blocking the inner via hole Outer stifled portion, the outer stifled portion is raised to the cambered surface of close the protrusion of the inner via hole from the outer inner surface for filling portion (52) Grain.