CN101463920A - Piston apparatus for four-way switch valve - Google Patents
Piston apparatus for four-way switch valve Download PDFInfo
- Publication number
- CN101463920A CN101463920A CNA2008101795161A CN200810179516A CN101463920A CN 101463920 A CN101463920 A CN 101463920A CN A2008101795161 A CNA2008101795161 A CN A2008101795161A CN 200810179516 A CN200810179516 A CN 200810179516A CN 101463920 A CN101463920 A CN 101463920A
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- bolt
- piston apparatus
- valve body
- base part
- board member
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- Fluid-Driven Valves (AREA)
- Valve Housings (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses a piston device for a four-way switching valve used in the four-way switching valve (1). The four-way switching valve comprises: a cylindrical valve body (2); a bolt body (11) connected to an open end (2a) of the valve body through a braze welding (10); and the piston device (3) linked with a valve core and sliding in the valve body and forming an action chamber (13) with the bolt body, wherein a plate element (7) is formed by a basal part (7a) and a vertical bending part (7b) from the bottom part to the bolt side on an positive side of the action chamber. An open end (7e) of the vertical bending section of the plate element is connected to the bolt body at a position of leaving the valve body and a bolt body graft union (16). The action chamber is formed by the plate element and the bolt body. A sealing member (6) for sealing between the valve body interior and the action chamber is arranged at an opposite side with the valve body interior of the position device. The invention can ensure a normal movement of the four-way switching valve piston device, prevent a bad sealing of the sealing member between the valve body interior and the action chamber, and reliably fix the piston on a connection plate by using the bolt for stopping rotation.
Description
Technical field
The present invention relates to the piston apparatus that chiller plant, air conditioner etc. have utilized the employed four-way switching valves such as equipment of reversible refrigeration cycle.
Background technique
In the past, the configuration four-way switching valve switched refrigerant passage in the refrigerant passage of refrigeration cycle, switched indoor refrigeration and heated.As this four-way switching valve, proposed a variety of in the patent documentation 1 and 2 etc.
These four-way switching valves are for example shown in Figure 6, be provided with the piston apparatus 33 that makes the mobile usefulness of spool (not shown) in the inside of valve body 32, this spool is used for the switch fluids path, between the operating chamber 43 above piston apparatus 33 is installed in and the hyperbaric chamber 44 of below, in the slides within of valve body 32.Being formed on operating chamber 43 between piston apparatus 33 and the key 41 switches pilot valve (not shown) by conduit 42 with four-way and is connected.
In said structure, key 41 engages by the open end 32a of soldering 40 with valve body 32.In addition, piston apparatus 33 comprises two grip block 35A, 35B, Sealing 36 and riveted plating 37, be fastened on by bolt 38 this piston apparatus 33 be connected with spool on the connecting plate 34 of usefulness, and each member that constitutes piston apparatus 33 by rivet 39 by the riveted joint combinations.
As shown in Figure 7, riveted plating 37 is criss-cross tabular components, not only use rivet 39 to combine with the 1st grip block 35A, the 2nd grip block 35B (with reference to Fig. 1) and Sealing 36, and with rising portions 37a, 37b with the head of bolt 38 from the both sides riveted joint and be fixed on the plate 37, bolt 38 is played the function of spline.
Patent documentation 1: the spy opens flat 11-No. 201297 communiques
Patent documentation 2: the spy opens communique 2004-No. 125238
But, in above-mentioned four-way switching valve 31 in the past, since by soldering 40 with key 41 solderings on the open end 32a of valve body 32, therefore, following problem is arranged: scolder or solder flux can escape in the valve body 32 from the joining portion of the upper end portion inner peripheral surface of the underpart outer circumferential face of key 41 and valve body 32, hinder the normal of piston apparatus 33 to move, or make between Sealing 36 and the valve body 32 and produce the gap, become the reason of poor sealing.
In addition, in above-mentioned four-way switching valve 31, utilize rising portions 37a, the 37b of riveted plating 37 head of bolt 38 to be riveted from both sides and bolt 38 is fixed, but rising portions 37a, 37b are formed by thin plate, so can not obtain enough retention forces, when bolt 38 rotation, rising portions 37a, 37b will from the narrow part 37c of riveted plating 37 surface side of rising portions 37a, 37b laterally (direction of arrow) expand and open, can not play rotation stopping function to bolt 38.
Summary of the invention
Therefore, the present invention proposes in view of existing problem in the above-mentioned conventional art, and its purpose is: the piston apparatus of guaranteeing four-way switching valve normally moves.Prevent to be installed in the poor sealing of the Sealing between valve body inside and the operating chamber.Give spline to piston apparatus being fixed on the bolt of using on the connecting plate reliably.
For achieving the above object, the present invention is the piston apparatus that is used for four-way switching valve, and this four-way switching valve has: the valve body of tubular; Key with the open end soldered joint of this valve body; And with spool in linkage in the slides within of described valve body, form the piston apparatus of operating chamber with described key, described piston apparatus is characterised in that, in a side relative with described operating chamber, have by base part and from this base part to described key edge-on establish erect the board member that curved part constitutes, this board member the described open end that erects curved part at the position of leaving the joining portion between described valve body and the described key and described key butt, described operating chamber is formed by this board member and described key.
Adopt the present invention, because position at the joining portion of leaving valve body and key, the open end that erects curved part of board member and this key butt, operating chamber is formed by this board member and this key, therefore, even scolder or solder flux escape in the valve body from the joining portion of the soldering of key and valve body, can not hinder the normal of piston to move yet.
In described piston apparatus for four-way switch valve, can have the Sealing that valve body is sealed usefulness between the inner and described operating chamber in a side inner relative with described valve body.Adopt this structure, the sealing part separates by the joining portion of described board member and described valve body and key, therefore, even scolder or solder flux escape in the valve body from the joining portion of the soldering of key and valve body, the gap can not take place between Sealing and the valve body, can prevent poor sealing yet.
In described piston apparatus for four-way switch valve, the fixing part of bolt can be set at the described base part of described board member, and this bolton is being connected this piston apparatus on the connecting plate of usefulness with described spool.By making board member utilize bolt to fix, can reduce the part number, and can constitute compact piston apparatus.
In described piston apparatus for four-way switch valve, the described bolt portion of described board member is by being set as cylindric and make at least a portion calking distortion of this cylindric portion cylindraceous from described base part to described key is edge-on, thereby the head that will be contained in the described bolt of this cylindric portion is fixed on the described base part.
In addition, the described bolt portion of described board member has from described base part to the side-prominent upright a plurality of protrusion tabs established of described key, be out of shape by at least one calking that makes these a plurality of protrusion tabs, thereby will be fixed on by the head of the described bolt that this a plurality of protrusion tab centered on the described base part.
In addition, the described bolt portion of described board member has described base part is cut formed a plurality of protrusion tab, be out of shape by at least one calking that makes these a plurality of protrusion tabs, thereby will be fixed on by the head of the described bolt that this a plurality of protrusion tab centered on the described base part.
As mentioned above, adopt the present invention, a kind of piston apparatus for four-way switch valve can be provided, the normal of piston apparatus that can guarantee four-way switching valve moves, prevent to be installed in the poor sealing of the Sealing between valve body inside and the operating chamber, and can give spline to piston apparatus being fixed on the bolt of using on the connecting plate reliably.
Description of drawings
Fig. 1 is expression piston apparatus for four-way switch valve of the present invention and near sectional view thereof.
Fig. 2 is the diagrammatic sketch of the piston apparatus for four-way switch valve of presentation graphs 1, (a) is plan view, (b) is the sectional view of the A-A line of (a).
Fig. 3 is the board member of presentation graphs 2 and the diagrammatic sketch of bolt, and (a) being expression carries out the sectional view of state before the calking to the cylindrical part of board member, (b) is its plan view, (c) is the plan view of expression with state behind the cylindrical part calking of board member.
Fig. 4 is the diagrammatic sketch of variation of the board member of expression piston apparatus for four-way switch valve of the present invention, (a) being expression carries out the sectional view of state before the calking to the protrusion tab of board member, (b) being its plan view, (c) is the plan view with state behind the protrusion tab calking of board member.
Fig. 5 is the diagrammatic sketch of variation of the board member of expression piston apparatus for four-way switch valve of the present invention, (a) being expression carries out the sectional view of state before the calking to the protrusion tab of board member, (b) being its plan view, (c) is the plan view with state behind the protrusion tab calking of board member.
Fig. 6 be represent in the past piston apparatus for four-way switch valve and near sectional view.
Fig. 7 is the diagrammatic sketch of the piston apparatus for four-way switch valve of presentation graphs 6, (a) is plan view, (b) is worm's eye view.
Embodiment
Below, with reference to description of drawings example of the present invention.
Fig. 1 represents an example of piston apparatus for four-way switch valve of the present invention, this four-way switching valve 1 has the piston apparatus 3 that makes the mobile usefulness of spool (not shown) in the inside of valve body 2, this spool is used for the switch fluids path, between the operating chamber 13 above piston apparatus 3 is installed in and the hyperbaric chamber 14 of below, slide along the vertical direction in the inside of valve body 2.In addition, the operating chamber 13 that is formed between piston apparatus 3 and the key 11 is connected with four-way switching pilot valve (not shown) by conduit 12.Key 11 and valve body 2 are bonded on the open end 2a of valve body 2 by soldering 10.
Piston apparatus 3 comprises two grip block 5A, 5B, Sealing 6, secondary spring 15 and board member 7, is fastened on each member of being connected this piston apparatus 3 on the connecting plate 4 of usefulness with spool and constituting piston apparatus 3 by bolt 8 with rivet 9 riveted joint combinations.Thin plate springs materials such as secondary spring 15 usefulness Stainless Sheet Steels form, and give active force with the connecting airtight property (sealing) in 6 pairs of valve bodies of enhanced leaktightness spare, guarantee the connecting airtight property (sealing) of Sealing 6 for a long time and stably.
As shown in Figure 2, the board member 7 that is configured in piston apparatus 3 with operating chamber 13 relative sides have base part 7a, from this base part 7a to key 11 sides (top) upright establish erect curved part 7b, as shown in Figure 1, the open end 7e that erects curved part 7b of board member 7, leave valve body 2 with the position at the formed joining portion 16 of key 11 solderings with key 11 butts, form operating chamber 13 by board member 7 and key 11.
In addition, shown in Fig. 3 (a) and (b), board member 7 has bolt 8 is fixed on the cylindrical part 7c that uses on the base part 7a, shown in Fig. 3 (c), make cylindrical part 7c carry out calking distortion and the abutting part 7d (six positions) that forms is connected on the head of bolt 8, bolt 8 is fixed on the base part 7a from lateral bolt 8.
Utilize said structure, when by soldering 10 with key 11 solderings on the open end 2a of valve body 2 time, even scolder or solder flux escape in the valve body 2 from joining portion 16, because the open end 7e that erects curved part 7b of board member 7 is in the position at the joining portion 16 of leaving key 11 and valve body 2, therefore can not hinder the normal of piston apparatus 3 to move, Sealing 6 also is in the position of leaving joining portion 16, so also can not expand the reason of holding, become poor sealing because of scolder or solder flux between Sealing 6 and the valve body 2.
In addition,, therefore can stop the rotation of bolt 8 heads, bolt 8 can be firmly fixed owing to utilize the cylindrical part 7c of board member 7 and abutting part 7d that bolt 8 is fixed on the base part 7a.
Fig. 4 represents 1st variation of above-mentioned board member 7 for the fixed structure of bolt 8 heads, in this structure, shown in Fig. 4 (a) and (b), be provided with a plurality of protrusion tab 7f from base part 7a is upright, shown in Fig. 4 (c), make protrusion tab 7f carry out the calking distortion and make it and the head butt of bolt 8, bolt 8 is fixed on the base part 7a from lateral bolt 8.
Fig. 5 represents 2nd variation of above-mentioned board member 7 for the fixed structure of bolt 8 heads, in this structure, shown in Fig. 5 (a) and (b), cut base part 7a (notch part 7g) and form a plurality of (four) protrusion tab 7h, shown in Fig. 5 (c), make protrusion tab 7h carry out the calking distortion and make it and the head butt of bolt 8, bolt 8 is fixed on the base part 7a from lateral bolt 8.
In above-mentioned example, as shown in Figure 2, illustrated that the peripheral part that board member 7 has at base part 7a forms the situation that erects curved part 7b cylindraceous, but this erects the shape that curved part 7b is not limited to be linked to be with one tubular, also can make a plurality of curved parts that erect that have several entries on cylindrical portion.
In addition, 2 one ends of valve body that are positioned at four-way switching valve 1 with piston apparatus 3 are that example is described, and also the piston apparatus 3 with said structure can be located on the two end part of valve body 2 certainly.
Claims (6)
1. piston apparatus for four-way switch valve that in four-way switching valve, uses, this four-way switching valve has: the valve body of tubular; Key with the open end soldered joint of this valve body; And with spool in linkage in the slides within of described valve body, form the piston apparatus of operating chamber with described key, this piston apparatus is characterised in that,
In a side relative with described operating chamber, have by base part and from this base part to described key edge-on establish erect the board member that curved part constitutes, the described open end that erects curved part of this board member is at the position of leaving the joining portion between described valve body and the described key and described key butt, and described operating chamber is formed by this board member and described key.
2. piston apparatus for four-way switch valve as claimed in claim 1 is characterized in that, is sealed the Sealing of usefulness between a side inner relative with described valve body has valve body inside and described operating chamber.
3. piston apparatus for four-way switch valve as claimed in claim 1 or 2, it is characterized in that, be provided with the fixing part of bolt at the described base part of described board member, this bolt is fastened on described piston apparatus this piston apparatus is connected on the connecting plate of usefulness with described spool.
4. piston apparatus for four-way switch valve as claimed in claim 3, it is characterized in that, the described bolt portion of described board member is by being set as cylindric and make at least a portion calking distortion of this cylindric portion cylindraceous from described base part to described key is edge-on, thereby the head that will be contained in the described bolt of this cylindric portion is fixed on the described base part.
5. piston apparatus for four-way switch valve as claimed in claim 3, it is characterized in that, the described bolt portion of described board member has from described base part to the side-prominent upright a plurality of protrusion tabs established of described key, be out of shape by at least one calking that makes these a plurality of protrusion tabs, thereby will be fixed on by the head of the described bolt that this a plurality of protrusion tab centered on the described base part.
6. piston apparatus for four-way switch valve as claimed in claim 3, it is characterized in that, the described bolt portion of described board member has described base part is cut formed a plurality of protrusion tab, be out of shape by at least one calking that makes these a plurality of protrusion tabs, thereby will be fixed on by the head of the described bolt that this a plurality of protrusion tab centered on the described base part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007325431A JP5285899B2 (en) | 2007-12-18 | 2007-12-18 | Piston device for four-way switching valve |
| JP2007-325431 | 2007-12-18 | ||
| JP2007325431 | 2007-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101463920A true CN101463920A (en) | 2009-06-24 |
| CN101463920B CN101463920B (en) | 2013-04-24 |
Family
ID=40804632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810179516 Active CN101463920B (en) | 2007-12-18 | 2008-11-28 | Piston apparatus for four-way switch valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5285899B2 (en) |
| CN (1) | CN101463920B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937648A (en) * | 2015-03-06 | 2016-09-14 | 株式会社鹭宫制作所 | Slide valve and refrigeration cycle |
| CN106286897A (en) * | 2015-06-08 | 2017-01-04 | 浙江盾安禾田金属有限公司 | Four-way change-over valve and heat-exchange apparatus |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5550601B2 (en) * | 2011-04-27 | 2014-07-16 | 株式会社鷺宮製作所 | Temperature expansion valve |
| JP5916139B2 (en) * | 2013-07-26 | 2016-05-11 | 株式会社鷺宮製作所 | Fixing method of connecting fitting and piston in four-way switching valve and welding method of fixing screw in four-way switching valve |
| JP6407844B2 (en) * | 2015-11-24 | 2018-10-17 | 株式会社鷺宮製作所 | Switching valve and refrigeration cycle |
| JP7023493B2 (en) * | 2017-12-05 | 2022-02-22 | 株式会社不二工機 | Piston device and flow path switching valve equipped with it |
| CN114198354B (en) * | 2021-11-30 | 2022-12-02 | 湖南三一中型起重机械有限公司 | Pilot control system, integrated valve block, and work machine |
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| DE1804036A1 (en) * | 1968-10-19 | 1970-04-30 | Teves Gmbh Alfred | Fixing of lids in pipes |
| DE2320022C2 (en) * | 1973-04-19 | 1981-09-17 | Knorr-Bremse GmbH, 8000 München | Brake cylinders for vehicles, in particular rail vehicles |
| JPS509141A (en) * | 1973-05-31 | 1975-01-30 | ||
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| JPS52143050U (en) * | 1976-04-26 | 1977-10-29 | ||
| JPS5352110Y2 (en) * | 1977-05-12 | 1978-12-13 | ||
| JPS57144614U (en) * | 1981-03-09 | 1982-09-10 | ||
| JPS61103080A (en) * | 1984-10-26 | 1986-05-21 | Saginomiya Seisakusho Inc | Manufacturing method of four-directional reversing valve |
| JP2694032B2 (en) * | 1988-12-08 | 1997-12-24 | 株式会社鷺宮製作所 | Air conditioner for both heating and cooling |
| JPH0667915U (en) * | 1993-03-01 | 1994-09-22 | 不動金属工業株式会社 | Washer |
| JPH0742876U (en) * | 1993-12-29 | 1995-08-11 | 自動車部品工業株式会社 | Rock plate |
| CN2229010Y (en) * | 1994-01-14 | 1996-06-12 | 江苏省无线电科学研究所 | Multifunctional electric hydraulic valve |
| JPH11201297A (en) * | 1998-01-08 | 1999-07-27 | Ntn Corp | Manufacture of change-over valve and sliding valve |
| CA2375212A1 (en) * | 2000-05-19 | 2001-11-22 | Eisuke Ishida | Structure for preventing loosening of threaded fasteners |
| JP4077705B2 (en) * | 2002-10-01 | 2008-04-23 | 株式会社鷺宮製作所 | Manufacturing method of valve body for four-way switching valve |
| CN2718328Y (en) * | 2004-02-25 | 2005-08-17 | 中国北车集团长春机车车辆有限责任公司 | Spinning split piston |
| CN2727505Y (en) * | 2004-08-03 | 2005-09-21 | 辛学慧 | Built up thin piston |
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2007
- 2007-12-18 JP JP2007325431A patent/JP5285899B2/en active Active
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2008
- 2008-11-28 CN CN 200810179516 patent/CN101463920B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937648A (en) * | 2015-03-06 | 2016-09-14 | 株式会社鹭宫制作所 | Slide valve and refrigeration cycle |
| CN105937648B (en) * | 2015-03-06 | 2019-06-18 | 株式会社鹭宫制作所 | Slide valve and refrigerating cycle |
| CN106286897A (en) * | 2015-06-08 | 2017-01-04 | 浙江盾安禾田金属有限公司 | Four-way change-over valve and heat-exchange apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009144880A (en) | 2009-07-02 |
| JP5285899B2 (en) | 2013-09-11 |
| CN101463920B (en) | 2013-04-24 |
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