CN202042403U

CN202042403U - Push switch

Info

Publication number: CN202042403U
Application number: CN2011200496009U
Authority: CN
Inventors: 林锡埼
Original assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Current assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Priority date: 2011-02-28
Filing date: 2011-02-28
Publication date: 2011-11-16
Anticipated expiration: 2021-02-28

Abstract

The utility model provides a push switch, characterized in that a terminal group is located at the bottom of a containing room in a base body, a push assembly is accepted above the terminal group, and the push assembly comprises a conducting spring leaf, an elastic body and a push cap body; an actuating part capable of supporting the bottom of the push cap body is formed above a base of the elastic body, the basal is located below the actuating part and is equipped with a supporting part capable of supporting on the conducting spring leaf to make the terminal group form an electrical conduction, and a cover body is covered above the base body; in the soldering process of the push switch and a circuit board via a tin furnace, a sunken ring groove at the connecting position of the basal of the elastic body and the bottom side of the actuating part can be used to provide the margins needed by the volume expansion or deformation caused by the push switch being heated to avoid the elastic body extruding the push cap body excessively and the additional structure damage generated by distracting the cover body forcedly, and improve the manufacturing quality and yield to thereby save the cost effectively.

Description

Push switch

Technical field

The utility model relates to a kind of push switch, especially refer to the press component that is positioned with terminal group in the room of pedestal and is positioned at the terminal group top, and in the process by the welding of tin stove, the annular groove that can be recess by the elastomer of press component provides and is heated volumetric expansion or is out of shape required nargin, produce structural destruction to avoid causing lid to be forced to strut, and improve quality and the yield of making.

Background technology

Electronic product makes rapid progress now, bringing people lives more easily, as digital camera, mobile phone, personal digital assistant (PDA, Personal Digital Assistant), notebook computer, multimedia player and handheld game device etc., and in various electronic products, all can be provided with the switch of many difference in functionality patterns, as the mains switch on the notebook computer screen, when screen is covered on the body really, can press on and carry out powered-down on the switch, and when screen opening once more, just changeable switch carries out power-on or control is used, and because of the design of electronic product all towards gently, thin, short, little trend designs, make the inner employed various electronics spare parts of its electronic product also must with downsizing, little to meet the electronic product volume, the use that makes things convenient for the user to carry.

See also shown in Figure 8, three-dimensional exploded view for existing touch-pressure switch, find out by knowing among the figure, existing touch-pressure switch A is provided with a plurality of clamping block A11 in the accommodation space A10 of pedestal A1 inside outboard peripheries place, and bottom accommodation space A10, be provided with contact terminal set A12, and contact terminal set A12 top is provided with electric conductor A2 in regular turn, elastomer A3 and touch cap presser A4, and pedestal A1 outer cup is covered with housing A5, a plurality of buttons that housing A5 outside can be had are held groove A51 and are fixed with the last corresponding mutual inlay card of clamping block A11 of pedestal A1, and make and touch the interior movable inlay card of clamping slot A52 that peripheral region set a plurality of flange A41 in cap presser A4 bottom side are embedded in housing A5 internal face place, and in use, just can be pressed on down and press upward drive electric conductor A2 of cap body A4, elastomer A3 is length travel, and be squeezed in elastomer A3 bottom A31, make the electric conductor A2 of elastomer A3 positioned internal support the last state that electrically conducts that forms of contact terminal set A12 that is contacted with.

Only in the process that aforesaid existing touch-pressure switch A and circuit board weld, earlier pedestal A1 is positioned on the circuit board, the a plurality of pins that make its contact terminal set A12 pass pedestal A1 outside can utilize perforation (Through Hole) or surface adhering technology (SMT, Surface Mounted Technology) contact firm engagement corresponding on welding manner and the circuit board becomes one, but when crossing the welding of tin stove because of having touch-pressure switch A and circuit board now, because elastomer A3 is mostly for utilizing silica gel, one-body molded the making of material such as rubber, and suitable limited in pedestal A1 inner space, to cause elastomer A3 to produce be heated volumetric expansion or distortion by Yin Gaowen, and upwards excessive compression cap presser A4 is related to be caused its housing A5 to be forced to strut and produces structural destruction in touching, or even cause that existing touch-pressure switch A's touch cap presser A4 when pushing, cause and drive elastomer A3, electric conductor A2 supports and is contacted with the situation generation that contact terminal set A12 upward electrically connects inefficacy, is and remains to be engaged in the direction place that this journey dealer desires most ardently the research improvement.

Summary of the invention

The designer is because problem and the shortcoming that existing touch-pressure switch uses, and is collect related data via assessing in many ways and consider, and utilizes the research and development experience for many years of engaging in the industry constantly to study and revise, and the beginning is designed this kind push switch utility model and is born.

Main purpose of the present utility model is to be that the room bottom in the pedestal is positioned with terminal group, and be positioned at the terminal group top and contain press component, and press component includes electroconductive elastic sheet, elastomer and pressure cap body, in push switch and circuit board process by the welding of tin stove, make elastomer can pass through the Actuator Division support of top in pressure cap body bottom, the annular groove that is recess by base portion and junction, bottom side, Actuator Division provides its volumetric expansion or be out of shape required nargin of being heated simultaneously, be forced to strut the structural destruction that produced effectively to avoid elastomer excessive compression in the pedestal confined space in related its lid that causes of pressure cap body, or the pressure cap body drives elastomer when pushing, the situation that the terminal group that contacts at electroconductive elastic sheet electrically connect to lose efficacy takes place, and can improve the quality of manufacturing and yield and save cost effectively.

Secondary objective of the present utility model is to be in the process that press component pushes, make its electroconductive elastic sheet peripheral region block on the location division at pedestal room internal face place, and can utilize the ring protuberance bottom side annular lug at elastomer base portion outboard peripheries place and the mutual snaps into position of groove on the location division, this kind can prevent that not only pressure cap the body electroconductive elastic sheet that causes, any slippage of elastomer, loosening situation when pushing from taking place, and can guarantee that the elastomer better elastic supports to arrive in effect, and the stability of press component integral body when pushing.

A purpose more of the present utility model is when being that pressure cap body that press component has drives touch part that its elastomer, electroconductive elastic sheet centre be the shape that arches upward and supports on second terminal that is contacted with on the terminal group, also cut open the area that the groove of establishing reduces its contact on second contact site that can be had by second terminal, and because of burr that CONTACT WITH FRICTION produced, metal fines etc., and can provide press component to have good pressing touch and use more smoothly.

For achieving the above object, the utility model provides a kind of push switch, includes pedestal, terminal group, press component and lid, wherein:

This pedestal inside is formed with the room that can accommodate press component, and is concaved with a plurality of terminal grooves in the room bottom;

This terminal group is positioned in the terminal groove of pedestal, and this terminal group includes the two or more the first terminals and second terminal;

This press component is contained in the room of pedestal and is positioned at the terminal group top, this press component includes electroconductive elastic sheet, elastomer and pressure cap body, place, elastomeric base portion top be formed with can support in the Actuator Division of pressure cap body bottom, and base portion is positioned at below place, Actuator Division and is formed with and can presses on the first terminal that makes terminal group on the electroconductive elastic sheet and the pressure section that the formation of second terminal electrically conducts, and is formed with annular groove in base portion and junction, bottom side, Actuator Division again;

This lid cover is overlying on the pedestal top, and offers the open-work that exposes for press component pressure cap body on top surface.

During enforcement, the room of this pedestal is positioned at terminal groove upper inner wall face place and is formed with the internal diameter location division littler than the internal diameter of room, and the elastomer of press component is positioned at base portion outer periphery place and is provided with the ring protuberance that can be held on the location division.

During enforcement, top, the location division of this pedestal is concaved with ringwise groove, and place, elastomeric ring protuberance bottom side is provided with the annular lug that is corresponding snaps into position with groove.

During enforcement, this pedestal is positioned at each corner of the room outside for being provided with a plurality of embedded holes, and place, lid bottom surface is provided with embedded hole and is the fixing a plurality of fixed legs of corresponding inlay card.

During enforcement, the first terminal of this terminal group and second terminal have first contact site and second contact site respectively, the electroconductive elastic sheet central surface place of press component is formed with the ammunition feed gonosome and compresses and support the shape touch part of arching upward that is contacted with second contact site downwards, and the touch part peripheral region extends outwardly to form with first contact site and supports the support division that contacts.

During enforcement, the place, the base portion both sides that the first terminal had of this terminal group is extended with two or more first contact sites in the same way towards the place ahead, and base portion be positioned at left and right two outsides of first contact site respectively bending downwards be extended with first weld part that passes the pedestal outside, and be extended with second contact site towards the rear in the base portion centre of second terminal, and second contact site is between first contact site of 2 on the first terminal, bends downwards respectively at the place, base portion both sides of second contact site and is extended with second weld part that can pass the pedestal outside.

During enforcement, cut open on second contact site of this second terminal and be provided with a groove.

During enforcement, the elastomeric base portion bottom surface of this press component is positioned at pressure section outer periphery place and just is formed with one or more down and can be held in support portion on the electroconductive elastic sheet.

During enforcement, the elastomer of this press component is positioned at and has a holding hole on the Actuator Division, and the pressure cap body has a press section that can pass and be exposed to the pedestal through-hole position, and upwards be concaved with in the bottom surface, press section and can accommodate elastomeric storage tank, and be positioned at storage tank bottom center place and be extended with the reference column that is corresponding chimeric location with holding hole towards the below.

The annular groove that the utility model is recess by base portion and junction, bottom side, Actuator Division provides its volumetric expansion or be out of shape required nargin of being heated, be forced to strut the structural destruction that produced effectively to avoid elastomer excessive compression in the pedestal confined space in related its lid that causes of pressure cap body, or the pressure cap body drives elastomer, electroconductive elastic sheet when pushing and contacts at terminal group and electrically connect situation about losing efficacy and take place, and can improve the quality of manufacturing and yield and save cost effectively;

The utility model utilizes the ring protuberance bottom side annular lug at elastomer base portion outboard peripheries place and the mutual snaps into position of groove on the location division, can prevent that pressure cap the body electroconductive elastic sheet that causes, any slippage of elastomer, loosening situation when pushing from taking place, and can guarantee that the elastomer better elastic supports to arrive in effect, and the stability of press component integral body when pushing;

Cut open the area that the groove of establishing reduces its contact on second contact site that the utility model is had by second terminal, and because of burr that CONTACT WITH FRICTION produced, metal fines etc., and can provide press component to have good pressing touch and use more smoothly.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model;

Fig. 4 is the preceding side cutaway view of the utility model assembling;

Fig. 5 is the side cutaway view after the utility model assembling;

Fig. 6 pushes preceding side cutaway view for the utility model preferred embodiment;

Fig. 7 is the side cutaway view of the utility model preferred embodiment after pushing;

Fig. 8 is the three-dimensional exploded view of existing touch-pressure switch.

Description of reference numerals: 1-pedestal; The 11-room; The 111-location division; The 1111-groove; The 12-terminal groove; The 13-embedded hole; The 2-terminal group; The 21-the first terminal; The 211-base portion; 212-first contact site; 213-first weld part; 22-second terminal; The 221-base portion; 222-second contact site; The 2221-groove; 223-second weld part; The 3-press component; The 31-electroconductive elastic sheet; The 311-touch part; The 312-support division; The 32-elastomer; The 321-base portion; The 322-Actuator Division; The 3221-holding hole; The 323-pressure section; The 324-annular groove; The 325-support portion; 326-encircles protuberance; The 3261-annular lug; 33-pressure cap body; The 331-press section; The 332-storage tank; The 3321-reference column; The 333-clamping part; The protruding button of 3331-; The 4-lid; The 41-open-work; The 411-holding part; The 4111-catching groove; The 42-fixed leg; The 5-circuit board; The 51-contact; The A-touch-pressure switch; The A1-pedestal; The A10-accommodation space; The A11-clamping block; The A12-contact terminal set; The A2-electric conductor; The A3-elastomer; The A31-bottom; A4-touches cap presser; The A41-flange; The A5-housing; The A51-button is held groove; The A52-clamping slot.

Embodiment

For reaching above-mentioned purpose and structure, technological means that the utility model adopted and effect thereof, accompanying drawing illustrates in detail that with regard to preferred embodiment of the present utility model its structure is as follows with function now, in order to understanding fully.

See also Fig. 1～shown in Figure 4, be respectively the three-dimensional exploded view at stereo appearance figure of the present utility model, three-dimensional exploded view, another visual angle and the side cutaway view before the assembling, find out that by knowing among the figure the utility model includes pedestal 1, terminal group 2, press component 3 and lid 4, wherein:

This pedestal 1 inside is formed with the room 11 that can accommodate press component 3, and is concaved with a plurality of terminal grooves 12 that connect to pedestal 1 outside and can supply terminal group 2 location in room 11 bottoms; In addition, room 11 is positioned at terminal groove 12 upper inner wall face places and is formed with the less location division of

internal diameter

111, and 111 tops, location division are concaved with ringwise groove 1111; In addition, pedestal 1 is positioned at each corner of room 11 outsides and then is provided with a plurality of embedded holes 13.

This terminal group 2 includes two or more the first terminals 21 and second terminal 22 that can be positioned in pedestal 1 terminal groove 12, and be extended with two or more first contact sites 212 in the same way towards the place ahead in place, base portion 211 both sides that the first terminal 21 is had, and base portion 211 is positioned at first contact site, 212 left sides, right two outsides bending downwards respectively are extended with first weld part 213 that can pass pedestal 1 outside, and base portion 221 centre that second terminal 22 is had are extended with the second rounded contact site 222 towards the rear, its second contact site 222 is between 2 first contact sites 212 on the first terminal 21, and on second contact site 222, cut open and be provided with a groove 2221, and place, base portion 221 both sides also respectively bending downwards be extended with second weld part 223 that can pass pedestal 1 outside.

This press component 3 is in the room 11 that is contained in pedestal 1 and be positioned at terminal group 2 tops, and include electroconductive elastic sheet 31, elastomer 32 and pressure cap body 33, wherein electroconductive elastic sheet 31 central surface places are formed with the touch part 311 that is the shape that arches upward, and are positioned at touch part 311 peripheral regions and extend outwardly to form with the first terminal 21 first contact sites 212 and support the support division 312 that contacts; And elastomer 32 can be silica gel, rubber or other tools are soft, the material of elastic construction is made, and the place is formed with the Actuator Division 322 with holding hole 3221 above base portion 321 central authorities that elastomer 32 is had, and base portion 321 is positioned at 322 belows, Actuator Division places and is formed with one and can be corresponding pressure section 323 with electroconductive elastic sheet 31 touch parts 311, is formed with the annular groove 324 that is recess in base portion 321 and junction, 322 bottom side, Actuator Division again; In addition, base portion 321 bottom surfaces of elastomer 32 are positioned at pressure section 323 outer periphery places can be held in support portion 325 on electroconductive elastic sheet 31 support divisions 312 for side down is formed with one or more, and be provided with the ring protuberance 326 that can be held on the location division 111, and be positioned at place, ring protuberance 326 bottom sides and then be provided with the annular lug 3261 that can be corresponding snaps into position with groove 1111 in base portion 321 outer periphery places; Again, pressure cap body 33 has a press section 331, and in the press section 331 bottom surfaces upwards are concaved with the storage tank 332 that can accommodate elastomer 32, and be positioned at storage tank 332 bottom center places and be extended with a reference column 3321 that can be corresponding chimeric location towards the below, be provided with a plurality of clamping parts 333 in pressure cap body 33 outer periphery places again with holding hole 3221.

These lid 4 covers are overlying on pedestal 1 top, and on lid 4 surfaces, offer the open-work 41 that can expose for press component 3 pressure cap bodies 33, and be positioned at open-work 41 internal face places and be provided with a plurality of holding parts 411 that can be corresponding movable inlay card with clamping part 333, each corner of lid 4 bottom surfaces then is provided with and can be the fixing a plurality of fixed legs 42 of corresponding inlay card with embedded hole 13.

Please consult Fig. 2 simultaneously, Fig. 4, Fig. 5, Figure 6 and Figure 7, be respectively three-dimensional exploded view of the present utility model, side cutaway view before the assembling, side cutaway view after the assembling, side cutaway view after side cutaway view before preferred embodiment is pushed and preferred embodiment are pushed, find out by knowing among the figure, by above-mentioned member in when assembling, the first terminal 21 and second terminal 22 that earlier terminal group 2 are had are embedded at respectively in the terminal groove 12 of pedestal 1 room 11, and stretch into and between 2 first contact sites 212 of the first terminal 21 with second contact site 222 of second terminal 22, make the first terminal 21, a plurality of first weld parts 213 of second terminal 22, second weld part 223 distinctly is piercing in place, pedestal 1 bottom side downwards, again with the electroconductive elastic sheet 31 of press component 3, elastomer 32 and pressure cap body 33 are contained in room 11 inside in regular turn, even the support division 312 of electroconductive elastic sheet 31 peripheral regions supports downwards to form on first contact site 212 that is contacted with the first terminal 21 and electrically conducts, the ring protuberance 326 at elastomer 32 outer periphery places then is held in room 11 internal face place internal diameters than on the little location division 111 of room 11, and after making the annular lug 3261 at place, ring protuberance 326 bottom sides and groove 1111 on the location division 111 being corresponding snaps into position, just lid 4 covers can be overlying on pedestal 1 top, make the press section 331 of pressure cap body 33 pass and be exposed to open-work 41 places of pedestal 1, a plurality of clamping parts 333 with pressure cap body 33 outer periphery places are corresponding movable inlay card with a plurality of holding parts 411 at open-work 41 internal face places simultaneously, and the clamping part 333 of pressure cap body 33 and the holding part 411 of lid 4 also can be on demand or the different protruding buttons 3331 that are corresponding movable inlay card of design, catching groove 4111 patterns, continuous a plurality of fixed legs 42 with lid 4 each corner of bottom surface are forced into and are corresponding inlay card fix in a plurality of embedded holes 13 of pedestal 1 correspondence, lid 4 firmly can be incorporated into pedestal 1 top with this becomes one, stability when guaranteeing that press component 3 integral body are pushed is just finished the assembling of the utility model integral body.

Moreover, when push switch of the present utility model and circuit board 5 carry out weld job, earlier pedestal 1 is preset and be positioned on circuit board 5 surfaces, and be piercing in a plurality of first weld parts 213 of pedestal 1 outside with terminal group 2, contact 51 formation electric connections corresponding on the welding manner that second weld part 223 utilizes perforation (Through Hole) and the circuit board 5 only are a kind of preferable enforcement state, also can utilize surface adhering technology (SMT) welding manner firm engagement to become one, and formation excellent electrical property connection status, but this kind utilizes the piercing welding mode for having Stability Analysis of Structures, good resistance drawing and fixing strength are to prevent because of press component 3 regular pushing or excessive first weld part 213 that is caused terminal group 2 of the application of force, second weld part 223 takes place from the situation of circuit board 5 sur-face peelings or generation structural deterioration.

Therefore, push switch of the present utility model be with circuit board 5 integral body in process by tin stove welding, the elastomer 32 that pedestal 1 inside is accommodated can be by Actuator Division 322 supports in storage tank 332 bottoms of pressure cap body 33, the annular groove 324 that is recess by base portion 321 and junction, 322 bottom side, Actuator Division provides its volumetric expansion or be out of shape required nargin of being heated simultaneously, structural design with this annular groove 324, in the time of can effectively avoiding elastomer 32 in the inner limited space of pedestal 1, to carry out weld job, because of excessively upwards being squeezed in pressure cap body 33 related its lids 4 that cause, the Actuator Division 322 of elastomer 32 is forced to strut the structural destruction that produces, or pressure cap body 33 is pushed time institute and is caused and drive elastomer 32, electroconductive elastic sheet 31 supports to be contacted with and electrically connects the situation generation of losing efficacy on the terminal group 2, to guarantee function and the effect on whole the use, and can improve the quality of manufacturing and yield and save cost effectively, and after pushing, also can reach Stability Analysis of Structures, certain electric connection effect.

And in use, press on downwards earlier on pressure cap body 33 press sections 331 that press component 3 had, storage tank 332 bottoms of pressure cap body 33 are driven in the Actuator Division 322 at place, elastomer 32 tops, and the shape touch part 311 of arching upward that the pressure section 323 at 322 belows, interlock Actuator Division places presses on electroconductive elastic sheet 31 centre is a strain, 311 bottom surfaces, touch part by electroconductive elastic sheet 31 support downwards on second contact site 222 that is contacted with terminal group 2 second terminals 22 again, can make second contact site 222 of second terminal 22 and first contact site 212 of the first terminal 21 form the state that electrically conducts by electroconductive elastic sheet 31 with this, use to carry out the transmission of power supply or signal.

In the process that press component 3 is pushed, can make electroconductive elastic sheet 31 peripheral region blocks on the location division 111 at pedestal 1 room 11 internal face places, and utilize elastomer 32 to encircle the annular lug 3261 at place, protuberances 326 bottom sides and the groove 1111 mutual snaps into position on the location division 111, the electroconductive elastic sheet that causes 31, elastomer 32 any slippages, loosening situation took place when this kind can prevent not only that pressure cap body 33 from pushing, and can guarantee that elastomer 32 better elastic support to arrive in effect, and the stability of press component 3 integral body when pushing; In addition, when pressure cap body 33 drives touch part 311 that elastomers 32, electroconductive elastic sheet 31 are the shape that arches upward and supports on second terminal 22 that is contacted with terminal group 2, also can reduce the area of its contact by the groove 2221 on second contact site 222, and because of burr that CONTACT WITH FRICTION produced, metal fines etc., and can provide press component 3 to have good pressing touch and use more smoothly.

Above-mentioned detailed description is at a kind of preferable possible embodiments explanation of the utility model, only this embodiment is not in order to limit claim of the present utility model, all other do not break away from the equalization of being finished under the skill spirit that the utility model discloses to be changed and modifies change, all should be contained in the claim that the utility model contains.

In sum, the above-mentioned push switch of the utility model is for reaching its effect and purpose really, so the utility model really is the utility model of a practicality excellence, meet the application important document of utility model patent in fact, file an application in the whence in accordance with the law, expect that examining committee grants accurate the utility model early, ensureing designer's arduous design, if an ancient unit of weight office have any check doubtful, the indication of please writing to us without sparing, settled the doing one's utmost of designer cooperates, and the true feeling moral just.

Claims

1. a push switch includes pedestal, terminal group, press component and lid, it is characterized in that:

2. push switch according to claim 1, it is characterized in that, the room of this pedestal is positioned at terminal groove upper inner wall face place and is formed with the internal diameter location division littler than the internal diameter of this room, and the elastomer of press component is positioned at base portion outer periphery place and is provided with the ring protuberance that can be held on the location division.

3. push switch according to claim 2 is characterized in that, the top, location division of this pedestal is concaved with ringwise groove, and place, elastomeric ring protuberance bottom side is provided with the annular lug that is corresponding snaps into position with groove.

4. push switch according to claim 1 is characterized in that, this pedestal is positioned at each corner of the room outside for being provided with a plurality of embedded holes, and place, lid bottom surface is provided with embedded hole and is the fixing a plurality of fixed legs of corresponding inlay card.

5. push switch according to claim 1, it is characterized in that, the first terminal of this terminal group and second terminal have first contact site and second contact site respectively, the electroconductive elastic sheet central surface place of press component is formed with the ammunition feed gonosome and compresses and support the shape touch part of arching upward that is contacted with second contact site downwards, and the touch part peripheral region extends outwardly to form with first contact site and supports the support division that contacts.

6. push switch according to claim 1, it is characterized in that, the place, the base portion both sides that the first terminal had of this terminal group is extended with two or more first contact sites in the same way towards the place ahead, and base portion is positioned at first a contact site left side, right two outsides bending downwards respectively are extended with first weld part that passes the pedestal outside, and be extended with second contact site towards the rear in the base portion centre of second terminal, and second contact site is between first contact site of 2 on the first terminal, bends downwards respectively at the place, base portion both sides of second contact site and is extended with second weld part that can pass the pedestal outside.

7. push switch according to claim 6 is characterized in that, cuts open on second contact site of this second terminal and is provided with a groove.

8. push switch according to claim 1 is characterized in that, the elastomeric base portion bottom surface of this press component is positioned at pressure section outer periphery place and just is formed with one or more down and can be held in support portion on the electroconductive elastic sheet.

9. push switch according to claim 1, it is characterized in that, the elastomer of this press component is positioned at and has a holding hole on the Actuator Division, and the pressure cap body has a press section that can pass and be exposed to the pedestal through-hole position, and upwards be concaved with in the bottom surface, press section and can accommodate elastomeric storage tank, and be positioned at storage tank bottom center place and be extended with the reference column that is corresponding chimeric location with holding hole towards the below.