CN102889399B - Dragging frame part as well as guide valve and four-way valve with same - Google Patents
Dragging frame part as well as guide valve and four-way valve with same Download PDFInfo
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- CN102889399B CN102889399B CN201210365842.8A CN201210365842A CN102889399B CN 102889399 B CN102889399 B CN 102889399B CN 201210365842 A CN201210365842 A CN 201210365842A CN 102889399 B CN102889399 B CN 102889399B
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- trailing frame
- catch
- sliding bowl
- bowl
- frame parts
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Abstract
The invention provides a dragging frame part used for driving a sliding bowl to displace, wherein the dragging frame part comprises a core iron and a dragging frame arranged in a sliding bowl mounting hole, and the dragging frame is fixed on the core iron; and the dragging frame part is characterized by comprising a stop piece used for preventing the sliding bowl from popping up, the stop piece is fixedly connected with the dragging frame, and the thickness of the stop piece is greater than or equal to 0.5 mm and is less than or equal to 3 mm. The dragging frame part provided by the invention uses the stop piece to replace a spring tabletting in the prior art, the stop piece reserves the normal state of an air conditioning system, the stop piece pops on the upper part of the sliding bowl, so that the lower end face of the sliding bowl closely adheres to a small base surface, the sliding bowl and a small valve base form a kinematic pair, and the technical effect used for preventing the slide bowl from popping out when the air conditioning system is in a converse differential pressure is achieved. The invention also discloses a guide valve and a four-way valve with the dragging frame part.
Description
Technical field
The present invention relates to a kind ofly for air-conditioning, change refrigerant flow direction, realize refrigeration, heat the four-way trailing frame parts of switching.
Background technique
Cold for controlling at present, the four-way valve that warm type air-conditioning is changed between refrigeration mode and heating mode also can be for such as compressor, refrigerating machine, in the systems such as water heater, four-way valve as shown in Figure 1, it is by coil 1, pilot valve 2 and main valve 3 form, pilot valve 2 comprises guide valve seat 20 and sleeve pipe 21, sleeve pipe 21 right-hand members are welded with end socket 22, left end and guide valve seat 20 are connected to form pilot valve inner chamber, inner chamber is welded with little valve seat 28, on little valve seat 28, offer three step through-holes, on through hole, be welded with respectively capillary tube e/s/c, guide valve seat 20 is provided with the 4th step through-hole with respect to little valve seat 28 sides, be welded with capillary tube d, capillary tube d and D take over, D takes over the middle enclosed cavity 32 with main valve 3, the left enclosed cavity 31 of capillary tube e and main valve 3, the S of capillary tube s and main valve 3 takes over, capillary tube c is connected respectively with the right enclosed cavity 33 of main valve 3, therefore pilot valve 2 inner chambers are zone of high pressure, and s is low pressure area, inner chamber has the core iron 24 that can horizontally slip and suppresses the returning spring 23 in its hole, by rivet 26, be integrated in succession in addition, then riveted joint is fixed on trailing frame 27 and the spring pressuring plate 25 in core iron 24 holes together, wherein trailing frame 27 is provided with sliding bowl mounting hole, the sliding bowl 29 that bottom has shrinkage pool is inlaid in this hole, rivet 26 is riveted into one trailing frame 27 and spring pressuring plate 25, spring pressuring plate 25 tops are pressed in the top of sliding bowl 29, it is close on little valve seat 28 surfaces sliding bowl 29 lower end surfaces, sliding bowl 29 forms a kinematic pair with little valve seat 28, its inner chamber (being capillary tube s) is low pressure area, and its back (being pilot valve inner chamber) is zone of high pressure, therefore sliding bowl 29 is bearing the pressure difference producing therefrom, the sealing of kinematic pair is mainly realized by this pressure difference.Yet, in air-conditioning system due in running, exist reverse pressure reduction may, sliding bowl 29 leans on the pressure of s capillary tube side higher than the pressure of d capillary tube side, thereby make sliding bowl 29 be subject to moving up after reverse pressure reduction, and in sliding bowl 29 processes that move up, due to the thickness of spring pressuring plate 25 0.2 ~ 0.3mm only, pressure is limited, between spring pressuring plate 25 and guide valve seat 20, also there is larger space simultaneously, therefore, once sliding bowl 29 upwards pressure and is greater than the downward pressure of spring pressuring plate 25, spring pressuring plate 25 cannot stop on sliding bowl 29 and move, therefore when the working surface of sliding bowl 29 surpasses trailing frame 27 lower plane, sliding bowl 29 just may be stuck in trailing frame hole or eject trailing frame hole, even if recovering normal rear sliding bowl 29, pressure also cannot reset, thereby cause pilot valve to occur all-pass phenomenon, and then cause four-way valve cannot occur refrigeration, the switching heating.
Summary of the invention
The object of the invention is to solve the defect existing in above-mentioned prior art, a kind of trailing frame parts are provided for this reason, can block or eject by effective anti-on-slip bowl.Another object of the present invention is to provide a kind of pilot valve and four-way valve with these trailing frame parts.
For achieving the above object, the invention provides a kind of trailing frame parts, be used for driving the displacement of sliding bowl, comprise core iron, be provided with the trailing frame of sliding bowl mounting hole, trailing frame is fixed on core iron, it is characterized in that: described trailing frame parts also comprise the catch that anti-on-slip bowl ejects, and catch is fixedly connected with trailing frame, and catch thickness is more than or equal to 0.5mm and is less than or equal to 3mm.
Preferably, described catch comprises fixing part, joint and contacting part, and described joint links into an integrated entity fixing part and contacting part, and fixing part and trailing frame link into an integrated entity, and contact position is in the top of the sliding bowl of trailing frame mounting hole.
Preferably, described trailing frame parts also comprise spring pressuring plate, and described spring pressuring plate is between catch and trailing frame, and described catch and spring pressuring plate are fixed on trailing frame.
Preferably, described contacting part top is pressed in the top of sliding bowl.
Preferably, the thickness of described catch is less than or equal to 1mm.
Preferably, the material of described catch is aluminium or copper or stainless steel.
Trailing frame parts of the present invention, with catch, replaced spring pressuring plate of the prior art, catch had both retained under air-conditioning system normal state, catch top is pressed in the top of sliding bowl, sliding bowl lower end surface is close on little valve base surface, the function that sliding bowl and little valve seat form a kinematic pair, has obtained again air-conditioning system in the situation that of reverse pressure reduction, the technique effect of anti-on-slip bowl ejection.
For realizing above-mentioned second object, the present invention also provides a kind of pilot valve and four-way valve with these trailing frame parts.Because above-mentioned trailing frame parts have above-mentioned technique effect, pilot valve and the four-way valve with these trailing frame parts also have corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the four-way valve structural representation of prior art;
Fig. 2 is the embodiment of the present invention one trailing frame modular construction schematic diagram;
Fig. 3 be in Fig. 2 except core iron the plan view of trailing frame parts;
Fig. 4 is the embodiment of the present invention two trailing frame modular construction schematic diagram;
Fig. 5 be in Fig. 4 except core iron the plan view of trailing frame parts;
Fig. 6 is four-way valve structural representation of the present invention.
Embodiment
Fig. 6 is the structural representation of four-way valve of the present invention.The structure of the four-way valve in Fig. 6 and Fig. 1's is basic identical, but with unique difference of Fig. 1 is, the structure of trailing frame parts 4 is different, and therefore, the part that Fig. 6 is identical with Fig. 1 represents with prosign.
Embodiment one
As Fig. 2, shown in Fig. 3 and Fig. 6, trailing frame parts 4 comprise core iron 41, trailing frame 44, catch 43 and rivet 42, the material of catch 43 is aluminium, stainless steel or copper, preferred aluminium, the density of aluminium is little, lightweight, when catch thickness increases, a small amount of weight that increases trailing frame parts, reduce hardly the performance of pilot valve, catch 43 is riveted on trailing frame 44 by rivet 42, trailing frame 44 is fixed on core iron 41, catch 43 is rigidity, comprise fixing part 431, joint 432 and contacting part 433, joint 432 links into an integrated entity fixing part 431 and contacting part 433, in fixing part 431, be provided with hole, rivet 42 is riveted into one trailing frame 44 and catch 43 by hole, in trailing frame 44, be provided with sliding bowl mounting hole, the sliding bowl 29 that bottom has shrinkage pool is inlaid in this hole, 433 tops of contacting part are pressed in the top of sliding bowl 29, it is close on little valve seat 28 surfaces sliding bowl 29 lower end surfaces, when air-conditioning system normal operation, sliding bowl 29 forms a kinematic pair with little valve seat 28, its inner chamber (being capillary tube s) is low pressure area, and its back (being pilot valve inner chamber) is zone of high pressure, therefore sliding bowl 29 is bearing the pressure difference producing therefrom, the sealing of kinematic pair is mainly realized by this pressure difference.Yet while there is reverse pressure reduction in running in air-conditioning system, sliding bowl 29 leans on the pressure of s capillary tube side higher than the pressure of d capillary tube side, thereby make sliding bowl 29 be subject to moving up after reverse pressure reduction, and in sliding bowl 29 processes that move up, because the material of catch 43 is stainless steel, copper or aluminium, and thickness is between 0.5mm ~ 3mm, preferred 0.5 ~ 1mm, the thickness that surpasses prior art medi-spring compressing tablet 0.2 ~ 0.3mm far away, therefore catch 43 is rigidity, experimental results show that, when catch 43 thickness are 0.8mm, can resist the backpressure of system 3MPa, the downward pressure of catch 43 is greater than sliding bowl 29 and upwards pressure, can stop sliding bowl 29 to eject.
Embodiment two
As Fig. 4, shown in Fig. 5 and Fig. 6, trailing frame parts 4 comprise core iron 41, trailing frame 44, spring pressuring plate 45, catch 43 and rivet 42, catch 43 and spring pressuring plate 45 are riveted on trailing frame 44 by rivet 42, trailing frame 44 is fixed on core iron 41, catch 43 is positioned at the top of spring pressuring plate 45, be rigidity, comprise fixing part 431, joint 432 and contacting part 433, joint 432 links into an integrated entity fixing part 431 and contacting part 433, in fixing part 431, be provided with hole, rivet 42 by hole by trailing frame 44, spring pressuring plate 45 and catch 43 are riveted into one, in trailing frame 44, be provided with sliding bowl mounting hole, the sliding bowl 29 that bottom has shrinkage pool is inlaid in this hole, 45 tops of spring pressuring plate are pressed in the top of sliding bowl 29, it is close on little valve seat 28 surfaces sliding bowl 29 lower end surfaces, and the contacting part 433 of catch 43 is positioned at spring pressuring plate 45 and the top of sliding bowl 29 contact segments, be used for preventing the undue upper bullet of spring pressuring plate 45.While there is reverse pressure reduction in running in air-conditioning system, sliding bowl 29 leans on the pressure of s capillary tube side higher than the pressure of d capillary tube side, thereby make sliding bowl 29 be subject to moving up after reverse pressure reduction, and in sliding bowl 29 processes that move up, existence due to catch 43, catch 43 and downward the making a concerted effort of spring pressuring plate 45 are greater than sliding bowl 29 and upward pressure, stop sliding bowl 29 to eject, and it is flexible that spring pressuring plate 45 is, during installation, can not damage sliding bowl 29, and catch 43 is rigidity, effectively make up the shortcoming of spring pressuring plate 45 down pressure deficiencies.
The present invention also provides a kind of pilot valve, comprises guide valve seat 20, sleeve pipe 21, end socket 22, sliding bowl 29, little valve seat 28, capillary tube e/s/c/d, returning spring 23, and described trailing frame parts are foregoing trailing frame parts.Because above-mentioned trailing frame parts have above-mentioned technique effect, the pilot valve with these trailing frame parts also has corresponding technique effect, at this, is not described in detail.
The present invention also provides a kind of four-way valve, comprises main valve 3, pilot valve 2, coil 1, and wherein pilot valve is pilot valve as the aforementioned.Because above-mentioned pilot valve has above-mentioned technique effect, the four-way valve with this pilot valve also has corresponding technique effect, at this, is not described in detail.
What specify is, except pilot valve trailing frame parts, the concrete structure of other functional parts of pilot valve of the present invention and four-way valve and working principle are identical with prior art, and those skilled in the art can realize completely based on prior art, therefore repeat no more herein.
Above, although the optimum mode of execution of invention is at length illustrated, known to those skilled in the art, the present invention can be in its technical scope carries out various changes, distortion and implements mode of execution.
Claims (6)
1. trailing frame parts, be used for driving the displacement of sliding bowl, comprise core iron, be provided with the trailing frame of sliding bowl mounting hole, trailing frame is fixed on core iron, it is characterized in that: described trailing frame parts also comprise the catch that anti-on-slip bowl ejects, catch is fixedly connected with trailing frame, catch thickness is more than or equal to 0.5mm and is less than or equal to 3mm, described catch has rigidity, described catch comprises fixing part, joint and contacting part, described joint links into an integrated entity fixing part and contacting part, fixing part and trailing frame link into an integrated entity, contact position is in the top of the sliding bowl of trailing frame mounting hole, described trailing frame parts also comprise spring pressuring plate, described spring pressuring plate is between catch and trailing frame, described catch and spring pressuring plate are fixed on trailing frame.
2. trailing frame parts according to claim 1, is characterized in that: described contacting part top is pressed in the top of sliding bowl.
3. trailing frame parts according to claim 1, is characterized in that: the thickness of described catch is less than or equal to 1mm.
4. trailing frame parts according to claim 1, is characterized in that: the material of described catch is aluminium or copper or stainless steel.
5. a pilot valve, comprises guide valve seat, sleeve pipe, end socket, little valve seat, capillary tube, sliding bowl, spring, it is characterized in that, its trailing frame parts are the trailing frame parts described in claim 1-4 any one.
6. a four-way valve, comprises main valve, coil, it is characterized in that, its pilot valve is the pilot valve described in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365842.8A CN102889399B (en) | 2012-09-28 | 2012-09-28 | Dragging frame part as well as guide valve and four-way valve with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365842.8A CN102889399B (en) | 2012-09-28 | 2012-09-28 | Dragging frame part as well as guide valve and four-way valve with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889399A CN102889399A (en) | 2013-01-23 |
| CN102889399B true CN102889399B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210365842.8A Active CN102889399B (en) | 2012-09-28 | 2012-09-28 | Dragging frame part as well as guide valve and four-way valve with same |
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| CN (1) | CN102889399B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276227A (en) * | 2014-07-04 | 2016-01-27 | 浙江盾安禾田金属有限公司 | Core iron part and reversing valve |
| CN106812974B (en) * | 2015-12-01 | 2019-12-06 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot type three-way valve and air conditioning system |
| CN107013732A (en) * | 2016-01-27 | 2017-08-04 | 浙江盾安禾田金属有限公司 | A kind of electromagnetic valve structure and four-way reversing valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966194A (en) * | 1988-07-13 | 1990-10-30 | Ranco Japan Ltd. | Four-way switching valve device |
| CN2649216Y (en) * | 2003-09-03 | 2004-10-20 | 浙江三花集团有限公司 | Special riveting drive part |
| CN201133491Y (en) * | 2007-12-29 | 2008-10-15 | 浙江三花制冷集团有限公司 | Four-way change valve dragging gallow member |
| CN201954075U (en) * | 2010-11-09 | 2011-08-31 | 浙江盾安禾田金属有限公司 | Novel core iron small slider pressing structure and corresponding electromagnetic four-way reversing valve |
| CN202109075U (en) * | 2011-06-30 | 2012-01-11 | 浙江三花制冷集团有限公司 | Guide valve core iron device and guide vale and four-way reversing valve with same |
| CN202176757U (en) * | 2011-07-28 | 2012-03-28 | 浙江三花制冷集团有限公司 | Four-way reversing valve and dragging frame mechanism thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113990A (en) * | 2003-10-06 | 2005-04-28 | Ranco Japan Ltd | Selector valve |
| US7108008B2 (en) * | 2004-08-23 | 2006-09-19 | Ranco Incorporated Of Delaware | Reversing valve assembly with improved pilot valve mounting structure |
-
2012
- 2012-09-28 CN CN201210365842.8A patent/CN102889399B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966194A (en) * | 1988-07-13 | 1990-10-30 | Ranco Japan Ltd. | Four-way switching valve device |
| CN2649216Y (en) * | 2003-09-03 | 2004-10-20 | 浙江三花集团有限公司 | Special riveting drive part |
| CN201133491Y (en) * | 2007-12-29 | 2008-10-15 | 浙江三花制冷集团有限公司 | Four-way change valve dragging gallow member |
| CN201954075U (en) * | 2010-11-09 | 2011-08-31 | 浙江盾安禾田金属有限公司 | Novel core iron small slider pressing structure and corresponding electromagnetic four-way reversing valve |
| CN202109075U (en) * | 2011-06-30 | 2012-01-11 | 浙江三花制冷集团有限公司 | Guide valve core iron device and guide vale and four-way reversing valve with same |
| CN202176757U (en) * | 2011-07-28 | 2012-03-28 | 浙江三花制冷集团有限公司 | Four-way reversing valve and dragging frame mechanism thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-113990A 2005.04.28 |
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| CN102889399A (en) | 2013-01-23 |
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