CN101319734B - Piston link lever of four-way reversing valve - Google Patents
Piston link lever of four-way reversing valve Download PDFInfo
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- CN101319734B CN101319734B CN2007100689866A CN200710068986A CN101319734B CN 101319734 B CN101319734 B CN 101319734B CN 2007100689866 A CN2007100689866 A CN 2007100689866A CN 200710068986 A CN200710068986 A CN 200710068986A CN 101319734 B CN101319734 B CN 101319734B
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Abstract
The invention relates to a piston rod for a four-way changeover valve, pertaining to a structure of a fluid control unit. The existing technology has the defect that the end of a connecting rod tends to deform or even break when the pressure in the main valve is too big. The invention is a folded plank component. A flanging is arranged at either side of the main body; a two flanging bent toward the opposite directions are respectively arranged on the two ends of the main body, and as a result, a break angle with the main body and the flanging as sides is formed. A reinforced plate is connected with at least one side of the break angle. A reinforced plate is connected with at least one side of the break angle formed by the main body and the flanging. Compared with the prior art, the invention has the advantages of firm connection, and distortion and rupture do not occur easily, etc.
Description
Technical field
The present invention relates to a kind of structure of fluid control component, be used for the piston rod of the four-way change-over valve of the heat pump air conditioner refrigeration system control refrigerant flow direction specifically.
Background technique
Four-way change-over valve has main valve and pilot valve, and main valve makes refrigerant loop switching direction by main valve in the refrigerant loop that is made of compressor, condenser, indoor heat converter and outdoor heat converter, thereby carries out the switching of cooling and heating.
The structural principle of existing solenoid valve scheme is made up of electromagnetic coil, pilot valve, main valve three parts as shown in Figure 1, and its structure and working principle are described below:
When air-conditioning needs refrigerating operaton, the electromagnetic coil no electric circuit, under the effect of returning spring, core iron drives sliding bowl and moves to left together, thereby make e/s, the c/d capillary tube communicates respectively, because it is low pressure area that meta is taken over S, so the gas in chamber, a main valve left side passes through e, s capillary tube and sliding bowl and flow into low pressure area, therefore left chamber becomes low pressure area, and the right chamber of main valve is owing to there be replenishing from c high pressure air capillaceous, thereby become the zone of high pressure, so between the chamber, the left and right sides of main valve, just formed a pressure difference, and therefore slide block and piston have been pushed to left side, making other position take over E communicates with meta adapter S, normal open is taken over D and communicated with other adapter C, and the refrigeration agent circulation path of internal system is at this moment: exhaust outlet of compressor → normal open is taken over D → valve body lumen → position, side adapter C → outdoor heat converter → throttle element → indoor heat converter → side adapter E → slide block → meta and is taken over S → compressor air suction mouth, and system is in the refrigeration work state.
When air-conditioning needs heating operation, the electromagnetic coil energising, under the effect of coil electromagnetic force, core iron overcomes the active force of returning spring and drives sliding bowl and move to right together, and c/s, e/d capillary tube are communicated respectively.The right chamber of main valve just becomes low pressure area, left chamber then becomes the zone of high pressure, therefore slide block and piston just have been pushed to the right side, making other position take over C communicates with meta adapter S, normal open is taken over D and is communicated with other position adapter E, the refrigeration agent circulation path of this moment is: exhaust outlet of compressor → normal open is taken over D → lumen → position, side adapter E → indoor heat converter → throttle element → outdoor heat converter → position, side and is taken over C → slide block → meta and take over S → compressor air suction mouth, and system is in and heats working state.
As mentioned above, just can realize the commutation of main valve by the acting in conjunction of electromagnetic coil and pilot valve, and switch the flow direction of refrigeration working medium by the commutation of main valve, make indoor heat converter become the condenser of the state that heats from the vaporizer of refrigerating state, outdoor heat converter has then become vaporizer from condenser, thus the purpose of the dual-use that makes air-conditioning realize freezing summer to heat winter.
The four-way reversing valve for heat pump air conditioner of said structure, the connecting rod of main valve inside are to be formed by the tabular component bending, and its two ends have the flange that is connected with piston element, are the knuckle on limit thereby be formed with flange and link body.When the pressure in the main valve is excessive, the knuckle place is deformed, even fracture, thereby cause four-way change-over valve to break down.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome the defective that makes the connecting rod end flange deform even rupture easily when the pressure in the main valve is excessive, and a kind of piston link lever of four-way reversing valve is provided.The present invention is by the following technical solutions for this reason:
Piston link lever of four-way reversing valve, form by the tabular component bending, the dual-side of its main body has a flanging respectively, the two ends of its main body have two flange of bending round about respectively, thereby being formed with described main body and flange is the knuckle on limit, it is characterized in that being connected with stiffening plate at least one limit of described knuckle.This stiffening plate can increase the intensity at knuckle place, prevents that pressure in the main valve from deforming when excessive even rupture.
As the further of technique scheme improved and replenish, so that adopt multiple structural type in the specific implementation, the present invention also comprises following additional technical feature:
At first,
Be to be connected with stiffening plate in described flange inboard.At this moment:
Described stiffening plate is dull and stereotyped.This flat board and flange link together and reach increase flange intensity by increasing flange thickness, prevent the function that the knuckle place deformed even ruptures when the interior pressure of main valve was excessive.
Described stiffening plate has the plat part that is connected on the described flange and from the kink of plat part to described Subject Extension.Described plat part can increase flange thickness, and kink can play a supportive role to flange, avoids the relative subject distortion of flange.
Filleted or hypotenuse transition part are arranged between described plat part and the kink.Produce interference when described transition part is used to avoid plat part to contact with main body with flange with kink and influence the accuracy that is connected.
Described kink is connected with described main body, so that reach the effect of better increase intensity.
Secondly,
Be to be connected with stiffening plate on described main body, this stiffening plate has kink that is connected on the described main body and the plat part that extends to described flange from kink.This kind structural type can make plat part form support to flange, the distortion even the fracture at opposing knuckle place.At this moment:
Equally filleted can be arranged between described plat part and the kink.
Equally the hypotenuse transition part can be arranged between described plat part and the kink.
Moreover,
Offer attachment hole on the described flange, offer the through hole corresponding on the described stiffening plate with described attachment hole.This structural type is so that be connected with piston with fastening piece such as bolt, rivet etc.Therefore described attachment hole is can be tapped hole, and the through hole on the stiffening plate can be tapped hole or naked hole.Attachment hole is stamped to form by ecto-entad on flange, is formed with the bulge loop of giving prominence on the flange inner surface thus, thereby can increase the length of screw thread; Through hole on the described stiffening plate is enclosed within on this bulge loop.
Also have,
Describedly be connected to welding.
Flange corresponding to main body the same side bends in the opposite direction.Make that when being connected the stressed relative main body of four flange is balance more with piston.
Has stress relief groove between two flange that bend round about of the same end of described main body.In order to avoid the flange place increases the possibility of distortion even fracture because of there being stress.
The invention has the beneficial effects as follows: by at least one limit of the knuckle that forms by main body and flange, being connected stiffening plate, compared with prior art, having and be connected firmly, advantage such as not yielding in the course of the work, fracture.
Description of drawings
Fig. 1 is the system diagram of a kind of four-way change-over valve in refrigeration system.
Fig. 2 is the system diagram of another kind of four-way change-over valve in refrigeration system.
Fig. 3 implements illustration for one of bar linkage structure of the present invention.
Fig. 4 is the left view of Fig. 3.
Fig. 5,6 is two enforcement illustrations (view direction of Fig. 4 relatively) in addition of stiffening plate.
Fig. 7,8,9 is two structure enlarged diagrams that the attachment hole on the flange cooperates with through hole on the stiffening plate.
Among the figure:
The LA/LB/LC-piston rod, W-knuckle, L1-main body, L2-flanging, L3-flange, L4-stiffening plate, L5-plat part, L6-kink, L7-filleted, L8-hypotenuse transition part, L9-stress relief groove, L10-attachment hole, L11-through hole, L12-bulge loop.
The large-scale main valve of 1-; 2-controls main valve; The 3-pilot valve; 4-coil screw, the 5-coil; The 8-compressor; The 9-outdoor heat converter; The 10-throttle element; The 11-indoor heat converter; The 12-fixed plate; The 13-connecting plate; The 14-attachment screw; The 15-support; The 16-spring sheet; 1.1-big valve seat; 1.2-big sliding bowl; 1.3-big end cap; 1.4-big piston; 1.5-big connecting rod; 1.6-big valve body; 2.1-valve seat; 2.2-sliding bowl; 2.3-end cap; 2.4-piston; 2.5-connecting rod; 2.6-valve body; 3.1-little valve seat; 3.2-trailing frame; 3.3-sliding bowl; 3.4-little valve body; 3.5-reed; 3.6-sleeve pipe; 3.7-core iron; 3.8-returning spring; 3.9-end socket; D/D '-normal open is taken over; S/S '-meta is taken over, and the e/s/c/d-capillary tube is taken in E/E '/C/C '-position, side.
Embodiment
Below in conjunction with Figure of description the present invention is described in further details.
Embodiment one
Piston link lever of four-way reversing valve LA shown in Fig. 3,4, form by the tabular component bending, the dual-side of its main body L1 has a flanging L2 respectively, the two ends of its main body L1 have two flanged L 3 of bending round about respectively, and the flange corresponding to main body L1 the same side bends in the opposite direction, have stress relief groove L9 between two flange that bend round about of the same end of main body, flanged L 3 inboards are welded with stiffening plate L4, and this stiffening plate is dull and stereotyped.
Embodiment two
Piston link lever of four-way reversing valve as shown in Figure 5, except following difference, other structure is identical with embodiment one: the stiffening plate L4 that is welded on flanged L 3 inboards have on flanged L of being connected 3 plat part L5 and from the kink L6 of plat part L5 to Subject Extension, between plat part L5 and the kink L6 filleted L7 is arranged, and kink L6 and main body L1 welding be not (if kink L6 and main body L1 weld, then become another embodiment again, do not repeat them here).
Embodiment three
Piston link lever of four-way reversing valve as shown in Figure 6, except following difference, other structure is identical with embodiment two: hypotenuse transition part L8 (if kink L6 and main body L1 do not weld, then become another embodiment again, do not repeat them here) is arranged between plat part L5 and the kink L6.
Embodiment four
Illustrated with shown in Figure 5, this embodiment's piston link lever of four-way reversing valve, except following difference, other structure is identical with embodiment two: the kink L6 of stiffening plate L4 and main body L1 welding, plat part L5 then only is supported on flanged L 3 inboards and does not weld (obvious, structure shown in Figure 6 also can form another kind of mode of execution according to the Placement of present embodiment, does not repeat them here).
Embodiment five
Piston link lever of four-way reversing valve as shown in Figure 7 offers attachment hole on its flange, offers the aperture consistent through hole corresponding with attachment hole on the stiffening plate, so that wear fastening piece such as rivet is connected with piston.
Embodiment six
Piston link lever of four-way reversing valve as shown in Figure 8, offer attachment hole on its flange, offer the aperture consistent through hole corresponding on the stiffening plate with attachment hole, attachment hole and through hole all are processed into tapped hole, so that wearing fastening piece is connected (obvious as screw with piston, as another kind of structural type, through hole herein also can be naked hole).
Embodiment seven
Piston link lever of four-way reversing valve as shown in Figure 9, ecto-entad is stamped to form attachment hole on its flange, is formed with the bulge loop of giving prominence on the flange inner surface thus, is processed into screw thread and becomes the tapped hole of length greater than flange thickness in attachment hole; Through hole on the stiffening plate is enclosed within on this bulge loop.
Embodiment five, six, seven scheme can be applied to respectively in the previous embodiment one to four.
The described piston rod of above-mentioned each embodiment can be applied on the conventional four-way change-over valve shown in Figure 1 and connect piston as connecting rod 2.5, also can be applied on the following large-scale four-way reversing valve to connect big piston as big connecting rod 1.5.
Large-scale four-way reversing valve as shown in Figure 2 mainly is made of four parts: large-scale main valve 1, control main valve 2, pilot valve 3, coil 5.Large-scale main valve 1 is taken over by control with control main valve 2 and is connected; Control main valve 2 and pilot valve 3 are connected by capillary tube; Pilot valve 3 and coil 5 are connected and fixed by fixing screw 4; Be welded with fixed plate 12 on the large-scale main valve 1, be welded with connecting plate 13 on the control main valve 2, fixed plate 12 and connecting plate 13 are fixing by attachment screw 14.
As shown in Figure 2, control main valve 2, pilot valve 3, coil 5 and structure and Placement thereof same as shown in Figure 1, will not give unnecessary details; And relative Fig. 1, the normal open of controlling main valve 2 is taken over D, meta takes over S and two other position adapter E/C are connected with exhaust outlet of compressor, compressor air suction mouth and indoor heat converter, outdoor heat converter, is used to control large-scale main valve commutation on the large-scale main valve but be connected.
Large-scale main valve 1 comprises a columnar big valve body 1.6, there are big end cap 1.3 sealing at two ends, interior welds has big valve seat 1.1, also useful big connecting rod 1.5 fuses big sliding bowl 1.2 and a pair of big piston 1.4 is separated into three chambers in left chamber (E ' side), lumen, right chamber (C ' side) by big piston 1.4 with large-scale main valve inner chamber.It is equivalent to control the structure for amplifying of main valve on Dimensions.
The normal open of large-scale main valve 1 is taken over D ' and is connected with exhaust outlet of compressor, forms the zone of high pressure; Meta is taken over S ' and is connected with the compressor air suction mouth, forms low pressure area.An other position is taken over E ' and is connected with indoor heat converter, and another other position is taken over C ' and is connected with outdoor heat converter.Simultaneously, meta is taken over S ' and is connected with the meta adapter S of control main valve 2 by connecting tube 7, and is fixing with welding; Normal open adapter D ' takes over the normal open adapter D adapter of also passing through connecting tube 7 and control main valve 2 and is connected, and is also fixing with welding; Two other positions of control main valve are taken over E, C and are communicated with the left chamber of large-scale main valve, right chamber respectively.
Control main valve 2 is connected with spring sheet 16 by support 15 with pilot valve 3, and the Placement of its structure and adapter is identical with Fig. 1, does not repeat them here.
When air-conditioning needs refrigerating operaton, electromagnetic coil 5 outages, under the effect of returning spring 3.8, core iron 3.7 drives sliding bowl 3.3 and moves to left together, thereby make e/s, the c/d capillary tube communicates respectively, because it is low pressure area that meta is taken over S, so the gas in control main valve 2 left chambeies passes through e, s capillary tube and sliding bowl and flow into low pressure area, therefore the left chamber of controlling main valve 2 becomes low pressure area, and the right chamber of control main valve 2 is owing to there be replenishing from c high pressure air capillaceous, thereby become the zone of high pressure, so on a left side of controlling main valve, just formed a pressure difference between right chamber, and therefore pushed slide block 2.2 and piston 2.4 to left side, and making other position adapter E take over S and communicate with meta, normal open is taken over D and is communicated with other position adapter C.At this moment, because it is low pressure area that meta is taken over S ', therefore, the gas in large-scale main valve 1 left chamber takes over E, meta adapter S by other position and slide block 2.2 flows into low pressure area, therefore the left chamber of large-scale main valve 1 becomes low pressure area, and the right chamber of large-scale main valve 1 is owing to there be the replenishing of high pressure air of taking over C from other position, thereby become the zone of high pressure, just formed a pressure difference between the chamber, the left and right sides of large-scale like this main valve, to slide bowl 1.2 and big piston 1.4 greatly and push the left side to, make other position take over E ' and communicate with meta adapter S ', normal open adapter D ' takes over C ' with other position and communicates.This moment, the refrigeration agent circulation path of internal system was: compressor 8 relief openings → normal open adapter D ' → large-scale main valve lumen → position, side adapter C ' → outdoor heat converter 9 → throttle element 10 → indoor heat converter 11 → position, side is taken over E ' → sliding greatly bowl 1.2 → meta and is taken over a S ' → compressor suction, and system is in the refrigeration work state.
When air-conditioning needs heating operation, electromagnetic coil 5 energisings, under the effect of coil electromagnetic force, core iron 3.7 overcomes the active force of returning spring 3.8 and drives sliding bowl 3.3 and move to right together, and c/s, e/d capillary tube 6 are communicated respectively.The right chamber of control main valve 2 just becomes low pressure area, and left chamber then becomes the zone of high pressure, so slide block 2.2 and piston 2.4 just be pushed to the right side, makes other position take over a C and takes over S with meta and communicate, and normal open is taken over D and communicated with an other adapter E.The replenishing of high pressure air that the gas in large-scale main valve 1 left chamber is taken over E owing to the other position that main valve 2 is arranged becomes the zone of high pressure, right chamber becomes low pressure area owing to being communicated with the other position adapter C of main valve 2, under the effect of left and right sides cavity pressure difference, to slide bowl 1.2 and big piston 1.4 greatly and push the right side to, make other position take over C ' and communicate with meta adapter S ', normal open adapter D ' takes over E ' adapter with other position and communicates.The refrigeration agent circulation path of this moment is: compressor 8 relief openings → normal open adapter D ' adapter → large-scale main valve lumen → position, side adapter E ' → indoor heat converter 11 → throttle element 10 → outdoor heat converter 9 → position, side is taken over C ' → sliding greatly bowl 1.2 → meta and is taken over S ' → compressor 8 intakepories, and system was in and heated working state this moment.
Above-mentioned large-scale four-way reversing valve conventional four-way change-over valve shown in Figure 1 relatively can be applied in the refrigeration system of bigger pressure (as central air-conditioner), and therefore, the relative large-scale four-way reversing valve of technological scheme of the present invention is effect more.
Claims (15)
1. piston link lever of four-way reversing valve, form by the tabular component bending, the dual-side of its main body (L1) has a flanging (L2) respectively, the two ends of its main body (L1) have two flange (L3) of bending round about respectively, thereby being formed with described main body (L1) and flange (L3) is the knuckle on limit, it is characterized in that described flange (L3) inboard is connected with stiffening plate (L4); Offer attachment hole on the described flange, offer the through hole corresponding on the described stiffening plate (L4) with described attachment hole; Described attachment hole is a tapped hole; And described attachment hole is that ecto-entad is stamped to form on flange, is formed with the bulge loop of giving prominence on the flange inner surface thus, and the through hole on the described stiffening plate (L4) is enclosed within on this bulge loop.
2. piston link lever of four-way reversing valve according to claim 1 is characterized in that described stiffening plate (L4) is for dull and stereotyped.
3. piston link lever of four-way reversing valve according to claim 1 is characterized in that described stiffening plate (L4) has plat part (L5) that is connected on the described flange (L3) and the kink (L6) that extends to described main body (L1) from plat part (L5).
4. piston link lever of four-way reversing valve according to claim 3 is characterized in that between described plat part (L5) and the kink (L6) filleted (L7) being arranged.
5. piston link lever of four-way reversing valve according to claim 3 is characterized in that between described plat part (L5) and the kink (L6) hypotenuse transition part (L8) being arranged.
6. according to claim 3,4 or 5 described piston link lever of four-way reversing valve, it is characterized in that described kink (L6) is connected with described main body (L1).
7. according to the described piston link lever of four-way reversing valve of 1～6 arbitrary claim, it is characterized in that the described welding that is connected to.
8. piston link lever of four-way reversing valve according to claim 1 is characterized in that bending in the opposite direction corresponding to the flange of main body the same side.
9. piston link lever of four-way reversing valve according to claim 1 is characterized in that two of the same end of described main body (L1) have stress relief groove (L9) between the flange of bending round about.
10. piston link lever of four-way reversing valve, form by the tabular component bending, the dual-side of its main body (L1) has a flanging (L2) respectively, the two ends of its main body (L1) have two flange (L3) of bending round about respectively, thereby being formed with described main body (L1) and flange (L3) is the knuckle on limit, it is characterized in that, be connected with stiffening plate (L4) on the described main body (L1), this stiffening plate (L4) has kink (L6) that is connected on the described main body (L1) and the plat part (L5) that extends to described flange (L3) from kink (L6); Offer attachment hole on the described flange, offer the through hole corresponding on the described stiffening plate (L4) with described attachment hole; Described attachment hole is a tapped hole; And described attachment hole is that ecto-entad is stamped to form on flange, is formed with the bulge loop of giving prominence on the flange inner surface thus, and the through hole on the described stiffening plate (L4) is enclosed within on this bulge loop.
11. piston link lever of four-way reversing valve according to claim 10 is characterized in that between described plat part (L5) and the kink (L6) filleted (L7) being arranged.
12. piston link lever of four-way reversing valve according to claim 10 is characterized in that between described plat part (L5) and the kink (L6) hypotenuse transition part (L8) being arranged.
13., it is characterized in that the described welding that is connected to according to the described piston link lever of four-way reversing valve of 10～12 arbitrary claims.
14. piston link lever of four-way reversing valve according to claim 10 is characterized in that bending in the opposite direction corresponding to the flange of main body the same side.
15. piston link lever of four-way reversing valve according to claim 10 is characterized in that two of the same end of described main body (L1) have stress relief groove (L9) between the flange of bending round about.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100689866A CN101319734B (en) | 2007-06-04 | 2007-06-04 | Piston link lever of four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100689866A CN101319734B (en) | 2007-06-04 | 2007-06-04 | Piston link lever of four-way reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319734A CN101319734A (en) | 2008-12-10 |
| CN101319734B true CN101319734B (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100689866A Active CN101319734B (en) | 2007-06-04 | 2007-06-04 | Piston link lever of four-way reversing valve |
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| Country | Link |
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| CN (1) | CN101319734B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758958A (en) * | 2012-01-18 | 2012-10-31 | 浙江三花制冷集团有限公司 | Connecting rod component and reversing valve main valve using same |
| CN102678956B (en) * | 2012-05-14 | 2013-10-09 | 浙江盾安人工环境股份有限公司 | Guide frame and electromagnetic reversing valve |
| CN105090556B (en) * | 2015-09-11 | 2017-08-29 | 何珠华 | Electromagnetism four-way reversing valve main valve seat, manufacture method and electromagnetism four-way reversing valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894561A (en) * | 1974-03-14 | 1975-07-15 | Controls Co Of America | Four-way reversing valve with differential area operator |
| CN2490378Y (en) * | 2001-06-25 | 2002-05-08 | 浙江三花集团有限公司 | Bistable electromagnetic four-way change valve |
| CN2630595Y (en) * | 2003-06-16 | 2004-08-04 | 林荣恒 | Driven four-way electromagnetic change valve for multi-purpose heat pump system |
-
2007
- 2007-06-04 CN CN2007100689866A patent/CN101319734B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894561A (en) * | 1974-03-14 | 1975-07-15 | Controls Co Of America | Four-way reversing valve with differential area operator |
| CN2490378Y (en) * | 2001-06-25 | 2002-05-08 | 浙江三花集团有限公司 | Bistable electromagnetic four-way change valve |
| CN2630595Y (en) * | 2003-06-16 | 2004-08-04 | 林荣恒 | Driven four-way electromagnetic change valve for multi-purpose heat pump system |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平6-185640A 1994.07.08 |
| JP特开平9-229214A 1997.09.05 |
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Effective date of registration: 20220818 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 Liquan, Chengguan Town, Xinchang County, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
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