CN201352038Y - Throttle pipe for household air conditioner - Google Patents
Throttle pipe for household air conditioner Download PDFInfo
- Publication number
- CN201352038Y CN201352038Y CNU2009201139798U CN200920113979U CN201352038Y CN 201352038 Y CN201352038 Y CN 201352038Y CN U2009201139798 U CNU2009201139798 U CN U2009201139798U CN 200920113979 U CN200920113979 U CN 200920113979U CN 201352038 Y CN201352038 Y CN 201352038Y
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- CN
- China
- Prior art keywords
- valve body
- quiet spool
- block piece
- air conditioner
- household air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/38—Expansion means; Dispositions thereof specially adapted for reversible cycles, e.g. bidirectional expansion restrictors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a throttle pipe used for a household air conditioner, which comprises a tubular valve body (1), a static spool valve (2) which is arranged in the valve body (1) and fixedly arranged relative to the valve body, and a movable spool valve (4) which can slide axially relative to the valve body; and the throttle pipe is characterized in that the valve body (1) is also internally provided with a stopper (3) which is fixedly arranged relative to the valve body and provided with a channel (31) for refrigerants to flow through; the movable spool valve (4) is positioned between the static spool valve (2) and the stopper (3), is internally provided with pores (41) axially penetrating through the movable spool valve (4), and is provided with at least one groove (42) which penetrates through the whole peripheral surface and used for refrigerants to flow through on the peripheral surface; and the static spool valve (2) is only provided with one pore channel (21) penetrating the axis thereof. The movable spool valve (4) directly slides in the valve body, the structure of the static spool valve (2) is simpler compared with that of the valve seat of the existing throttle pipe, and the static spool valve (2) is also provided with the pore channel, thus leading to better throttling effect.
Description
Technical field
The utility model belongs to the technical field of air-conditioning, relates in particular to a kind of throttle pipe of household air conditioner.
Background technology
Throttle structure in the small-type refrigeration appliances such as existing domestic air conditioning generally adopts capillary, as a patent No. is that the Chinese utility model patent " bidirectional throttle device " of ZL99245856.0 (notification number is CN2386402A) has disclosed a kind of bidirectional throttle device, it mainly contains the device of a tubulose, be respectively arranged with two valve seats of oppositely settling in the body, respectively be mounted with movably in the valve seat, the centre has the spool of axial pore, the axial pore of two spools is small one and large one, be respectively applied for refrigeration and heat process, in the tubulose body of two spool outer ends, respectively be provided with a fluid filter screen in addition.
As a patent No. is a kind of choke valve the Chinese utility model patent " bi-directional secondary choke valve " of ZL200720107950.X (notification number is CN201027999Y) has disclosed, comprise valve body, an end sealing and fixing has valve seat in the valve body, valve seat comprises valve opening and slideway, be provided with movable spool in the slideway, have axial aperture on the spool, valve seat is provided with several through flow holes, other end sealing and fixing has fixed spool in the valve body, and fixed spool has axial aperture.
The structure more complicated of above-mentioned each choke valve middle shell inside, enclosure interior is provided with valve arrangement, and valve arrangement comprises valve seat, spool and pad again, but also is provided with filter screen, so the cost height, restriction effect is relatively poor.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of overall structure more simple throttle pipe of household air conditioner at above-mentioned prior art present situation, and can guarantee better restriction effect.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of throttle pipe of household air conditioner, include tubular valve body, and be provided with the quiet spool that is provided with this valve body relative fixed in the valve body, and the movable valve plug of the relative valve body axial slip of an energy; It is characterized in that: also be provided with the block piece that is provided with this valve body relative fixed in the described valve body, described block piece has the passage that passes through for cold-producing medium; Described movable valve plug is between quiet spool and block piece, has the pore that runs through the axle center in the movable valve plug, and have a groove that passes through for cold-producing medium through whole outer surface on the outer surface of movable valve plug at least, only have the capillary porosity duct that runs through its axle center in the described quiet spool, and this capillary porosity duct only there is one.
Above-mentioned quiet spool is made up of at least two quiet spool monomers, and adjacent two quiet spool monomers fit tightly and form complete quiet spool.Above-mentioned quiet spool is made up of at least two quiet spool monomers, and adjacent two quiet spool monomers are provided with at interval.Also can between adjacent two above-mentioned quiet spool monomers, be provided with back-up ring.
Quiet spool adopts at least two monomers to be spliced, so the axial length of each monomer is short relatively, the processing pore is simple relatively on monomer, also have through experiment and learn, when adopting two or more monomers, quiet spool is spliced, can change the restriction effect of throttle pipe, make the adaptability of this throttle pipe stronger, the restriction effect of conveniently adjusted throttle pipe.
General air-conditioning throttle pipe, above-mentioned quiet spool and block piece directly and valve interior wall fix, wherein because the outer peripheral face and the valve body inner peripheral surface of quiet spool are smooth structure, therefore, be fixed together to good in the mode by extruding between quiet spool outer peripheral face and the valve interior wall, the mode of extruding has the simple advantage in location.Thicker because of quiet spool wall thickness again, and the valve body tube wall is thinner, thus can on quiet spool outer peripheral face, be provided with one or more cannelure respectively in advance, again in the outside application of force of valve body, the inwall of described valve body snaps in the described cannelure by extruding, can make valve body and quiet spool strong bonded like this.
Above-mentioned block piece can be back-up ring, is provided with one or more cannelure on the described block piece outer peripheral face respectively in advance, and the inwall of described valve body snaps in the described cannelure by extruding.Above-mentioned block piece also can be for forming the bulge loop of convex on valve interior wall.Can simplify the effect of block piece as block piece with bulge loop.Above-mentioned block piece can also be for plugging and the tube connector of solid welding in valve body.Because throttle pipe will link to each other with tube connector in use certainly, thus can adopt tube connector to replace block piece, further simplified structure.In fact block piece mainly plays the effect that stops that movable valve plug moves and allows cold-producing medium pass through, rather than plays throttling action, so there is not capillary porosity duct on the block piece.
Above-mentioned quiet spool, also be provided with a bushing pipe between block piece and movable valve plug and the valve interior wall, this bushing pipe and valve interior wall are fixed, quiet spool and block piece fixed interval are in described bushing pipe, the outer face of quiet spool and the end face of described bushing pipe, increasing the bushing pipe structure can make the installation location of quiet spool and movable valve plug simple and accurate, the bushing pipe of appropriate length is set as required, earlier movable valve plug being put into bushing pipe packs quiet spool into then from bushing pipe one end, only need to keep the outer face of quiet spool to flush with the bushing pipe corresponding end-faces, each parts is in place, therefore installs very convenient; Because bushing pipe outer peripheral face and valve body inner peripheral surface are smooth structure, therefore be fixed together to good in mode between above-mentioned bushing pipe outer peripheral face and the valve interior wall by extruding, so on quiet spool outer peripheral face, be provided with one or more cannelure respectively in advance, again in the outside application of force of valve body, the bushing pipe inwall is expressed in the described cannelure, simultaneously, valve interior wall also can correspondingly be expressed on the bushing pipe outer wall, can make like this valve body and left and right quiet spool strong bonded.
Above-mentioned block piece can be back-up ring, is provided with one or more cannelure on the block piece outer peripheral face respectively in advance, and the inwall of described bushing pipe snaps in the described cannelure by extruding, and the outer face of block piece flushes with the outer face of described bushing pipe respectively simultaneously.Above-mentioned block piece also can be for forming the bulge loop of convex on the bushing pipe inwall.Above-mentioned block piece can also be for plugging and the tube connector of solid welding in valve body, and the inner face of this tube connector contacts with the bushing pipe outer face.
Compared with prior art, advantage of the present utility model is: the overall structure of this throttle pipe has only valve body and is arranged on valve body interior quiet spool, movable valve plug and block piece, and movable valve plug is directly slippage in valve body, the structure of the valve seat in the existing relatively choke valve of the structure of quiet spool is more simple, and on quiet spool, also be provided with capillary porosity duct, and not only have at movable valve plug and also to have groove on pore and the side face, can change refrigerant flow, restriction effect is better.
Description of drawings
Fig. 1 is the structure cutaway view of the 1st embodiment of the utility model;
Fig. 2 cooperates cutaway view (having only a groove) for movable valve plug among the 1st embodiment of the utility model with valve body;
Fig. 3 cooperates cutaway view (two grooves are arranged) for movable valve plug among the 1st embodiment of the utility model with valve body;
Fig. 4 cooperates cutaway view (three grooves are arranged) for movable valve plug among the 1st embodiment of the utility model with valve body;
Fig. 5 cooperates cutaway view (four grooves are arranged) for movable valve plug among the 1st embodiment of the utility model with valve body;
Fig. 6 cooperates cutaway view (eight grooves are arranged) for movable valve plug among the 1st embodiment of the utility model with valve body;
Fig. 7 is the structure cutaway view of the 2nd embodiment of the utility model;
Fig. 8 is the structure cutaway view of the 3rd embodiment of the utility model;
Fig. 9 is the structure cutaway view of the 4th embodiment of the utility model;
Figure 10 is the structure cutaway view of the 5th embodiment of the utility model;
Figure 11 is the structure cutaway view of the 6th embodiment of the utility model;
Figure 12 is the structure cutaway view of the 7th embodiment of the utility model;
Figure 13 is the structure cutaway view of the 8th embodiment of the utility model;
Figure 14 is the structure cutaway view of the 9th embodiment of the utility model;
Figure 15 is the structure cutaway view of the 10th embodiment of the utility model;
Figure 16 is the structure cutaway view of the 11st embodiment of the utility model;
Figure 17 is the structure cutaway view of the 12nd embodiment of the utility model;
Figure 18 is the structure cutaway view of the 13rd embodiment of the utility model;
Figure 19 is the structure cutaway view of the 14th embodiment of the utility model;
Figure 20 is the structure cutaway view of the 15th embodiment of the utility model;
Figure 21 is the structure cutaway view of the 16th embodiment of the utility model;
Figure 22 is the structure cutaway view of the 17th embodiment of the utility model;
Figure 23 is the structure cutaway view of the 18th embodiment of the utility model;
Figure 24 is the structure cutaway view of the 19th embodiment of the utility model;
Figure 25 is the structure cutaway view of the 20th embodiment of the utility model;
Figure 26 is the structure cutaway view of the 21st embodiment of the utility model;
Figure 27 is the structure cutaway view of the 22nd embodiment of the utility model;
Figure 28 is the structure cutaway view of the 23rd embodiment of the utility model;
Figure 29 is the structure cutaway view of the 24th embodiment of the utility model.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Be depicted as first embodiment of the present utility model as Fig. 1～6.
A kind of throttle pipe of household air conditioner includes tubular valve body 1, and valve body 1 is generally made by copper or aluminium or steel pipe, and valve body 1 is cylindrical, and the internal diameter of valve body 1 is Φ 5～Φ 30mm; Be provided with a quiet spool 2 and a block piece 3 that directly fixedly installs with valve body 1 in the valve body 1, block piece 3 has the passage 31 that passes through for cold-producing medium, in valve body 1, also be provided with valve body 1 axial slip and the movable valve plug 4 between quiet spool 2 and block piece 3 relatively, wherein, quiet spool 2 is positioned at the left side of movable valve plug 4, block piece 3 is positioned at the right side of movable valve plug 4, distance between quiet spool 2 and the block piece 3 is greater than the axial dimension of movable valve plug 4, to guarantee that movable valve plug 4 can slippage between quiet spool 2 and block piece 3.Quiet spool 2 and movable valve plug 4 can adopt copper, aluminium, steel, iron or plastics to make, and quiet spool 2 and movable valve plug 4 be with valve body 1 inner chamber match cylindric.
Only have capillary porosity duct 21 in the quiet spool 2, and capillary porosity duct 21 has only one, capillary porosity duct 21 axially runs through the axle center of quiet spool 2.
Has a pore that axially runs through 41 in the movable valve plug 4, this pore 41 axially runs through the axle center of movable valve plug 4, have a groove 42 that passes through for cold-producing medium through whole outer surface on the outer surface of movable valve plug 4, cold-producing medium just can flow through between this groove 42 and valve body 1 inwall like this, and working groove 42 is than directly opening the easier processing of through hole in movable valve plug 4 inside on movable valve plug 4 outer peripheral faces.Groove 42 on the outer surface of movable valve plug 4 can also have two or three or four or eight, and all is uniformly distributed along the circumference.
The aperture of capillary porosity duct 21 and pore 41 is Φ 0.8～Φ 3mm.Through experiment as can be known, when the aperture of pore or capillary porosity duct during less than 0.8mm, cold-producing medium almost can not pass through pore, when the aperture of pore during greater than 3mm, pore can not play the effect of throttling again, and therefore, the aperture of capillary porosity duct 21, pore 41 is Φ 0.8～Φ 3mm.Pore then restriction effect less than normal is good more in this scope.
Because the outer peripheral face and valve body 1 inner peripheral surface of quiet spool 2 are smooth structure, therefore, the mode by extruding between quiet spool 2 outer peripheral faces and valve body 1 inwall is fixed together.Extruding can be in the following way, on quiet spool 2 outer peripheral faces, be provided with one or more cannelure 22 respectively in advance, again in the valve body 1 outside application of force, valve body 1 inwall is expressed in the described cannelure 22, be convenient to like this valve body 1 and quiet spool 2 strong bonded, the cross section of this cannelure 22 is good with semicircle, also can rectangle or square.
Move under the high order end state at movable valve plug 4, movable valve plug 4 left sides cooperate with the right side plane contact of quiet spool 2, quiet spool 2 blocks the outlet of the groove 42 of movable valve plug 4 peripheries, and the pore 41 on the while movable valve plug 4 communicates with the capillary porosity duct 21 on the quiet spool 2.
Move under the low order end state at movable valve plug 4, block piece 3 stops movable valve plug 4 to continue to move to right, simultaneously pore 41 and the groove 42 on the movable valve plug 4 is communicated with the passage 31 of block piece 3, the passage 31 that pore 41 and the groove 42 of cold-producing medium by movable valve plug 4 enters block piece 3.
Be illustrated in figure 7 as second embodiment of the present utility model.
The difference of this embodiment and first embodiment is that it also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, and these bushing pipe 6 usefulness metal materials are made.
Mode by extruding between bushing pipe 6 outer peripheral faces and valve body 1 inwall is fixed together, and also is fixed together by the mode of pushing between quiet spool 2, block piece 3 outer peripheral faces and bushing pipe 6 inwalls.Extruding can be in the following way, on quiet spool 2, block piece 3 outer peripheral faces, be provided with one or more cannelure 22,32 respectively in advance, again in the valve body 1 outside application of force, bushing pipe 6 inwalls are expressed in the described cannelure 22,32, simultaneously, valve body 1 inwall also can correspondingly be expressed on bushing pipe 6 outer walls, can make like this valve body 1 and quiet spool 2 and block piece 3 strong bonded, the cross section of this cannelure 22,32 is good with semicircle, also can rectangle or square.
As shown in Figure 8, be the 3rd embodiment of the present utility model.
The difference of this embodiment and first embodiment is that block piece 5 is the bulge loop that forms convex by fashion of extrusion on valve body 1 inwall.Can simplify the effect of block piece as block piece with bulge loop.
As shown in Figure 9, be the 4th embodiment of the present utility model.
The difference of itself and the 3rd embodiment is that it also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 10, be the 5th embodiment of the present utility model.
The difference of this embodiment and first embodiment is that block piece 3 is for plugging and the tube connector of solid welding in valve body 1.Because throttle pipe will link to each other with tube connector in use certainly, thus can adopt tube connector to replace block piece, further simplified structure.
As shown in figure 11, be the 6th embodiment of the present utility model.
The difference of this embodiment and the 5th embodiment is, between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, also be provided with a bushing pipe 6, but the concrete set-up mode reference example two of bushing pipe 6, the inner face of while as the tube connector of block piece 3 contacts with bushing pipe 6 outer faces.
Insert tube connector during installation, when the inner face of tube connector touches bushing pipe 6, just know to be in place, tube connector and valve body are welded together get final product the installation accuracy of raising tube connector then.
As shown in figure 12, be the 7th embodiment of the present utility model.
The difference of this embodiment and first embodiment is that quiet spool 2 is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b fits tightly and form complete quiet spool 2.Certain quiet spool 2 also can be made up of a plurality of quiet spool monomers.
As shown in figure 13, be the 8th embodiment of the present utility model.
The difference of this embodiment and the 7th embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 14, be the 9th embodiment of the present utility model.
The difference of this embodiment and the 3rd embodiment is that quiet spool 2 is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b fits tightly and form complete quiet spool 2.Certain quiet spool 2 also can be made up of a plurality of quiet spool monomers.
As shown in figure 15, be the of the present utility model ten embodiment.
The difference of this embodiment and the 9th embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 16, be the 11 embodiment of the present utility model.
The difference of this embodiment and the 5th embodiment is that quiet spool 2 is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b fits tightly and form complete quiet spool 2.Certain quiet spool 2 also can be made up of a plurality of quiet spool monomers.
As shown in figure 17, be the 12 embodiment of the present utility model.
The difference of this embodiment and the 11 embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 18, be the 13 embodiment of the present utility model.
The difference of this embodiment and first embodiment is that quiet spool 2 is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b are provided with at interval.Certain quiet spool 2 also can be made up of a plurality of quiet spool monomers.
As shown in figure 19, be the 14 embodiment of the present utility model.
The difference of this embodiment and the 7th embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 20, be the 15 embodiment of the present utility model.
The difference of this embodiment and the 3rd embodiment is that quiet spool 2 is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b are provided with at interval.Certain quiet spool 2 also can be made up of a plurality of quiet spool monomers.
As shown in figure 21, be the 16 embodiment of the present utility model.
The difference of this embodiment and the 9th embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 22, be the 17 embodiment of the present utility model.
The difference of this embodiment and the 5th embodiment is that quiet spool 2 is made up of two quiet spool monomer 2a, 2b, and adjacent two quiet spool monomer 2a, 2b are provided with at interval.Certain quiet spool 2 also can be made up of a plurality of quiet spool monomers.
As shown in figure 23, be the 18 embodiment of the present utility model.
The difference of this embodiment and the 17 embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 24, be nineteen embodiment of the present utility model.
The difference of this embodiment and the 13 embodiment is, also is provided with back-up ring 5 between adjacent two quiet spool monomer 2a, the 2b.
As shown in figure 25, be the 20 embodiment of the present utility model.
The difference of this embodiment and nineteen embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 26, be the 21 embodiment of the present utility model.
The difference of this embodiment and the 15 embodiment is, also is provided with back-up ring 5 between adjacent two quiet spool monomer 2a, the 2b.
As shown in figure 27, be the 22 embodiment of the present utility model.
The difference of this embodiment and the 9th embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
As shown in figure 28, be the 23 embodiment of the present utility model.
The difference of this embodiment and the 17 embodiment is, also is provided with back-up ring 5 between adjacent two quiet spool monomer 2a, the 2b.
As shown in figure 29, be the 24 embodiment of the present utility model.
The difference of this embodiment and the 23 embodiment is, also is provided with a bushing pipe 6 between quiet spool 2, block piece 3 and movable valve plug 4 and valve body 1 inwall, but the concrete set-up mode reference example two of bushing pipe 6.
The operation principle of aforementioned 24 embodiment and process are identical:
When cold-producing medium flows into from valve body 1 right-hand member, cold-producing medium flows into from the passage 31 of the block piece 3 that is positioned at movable valve plug 4 right-hand members, and promotion movable valve plug 4 moves to left, move under the high order end state at movable valve plug 4, the left side of movable valve plug 4 contacts with the right inner face of quiet spool 2, quiet spool 2 blocks the outlet of the groove 42 of movable valve plug 4 peripheries, pore 41 on the while movable valve plug 4 communicates with the capillary porosity duct 21 on the quiet spool 2, cold-producing medium is the passage 31 by being positioned at block piece 3 successively, the pore 41 of movable valve plug 4 and the capillary porosity duct 21 of quiet spool 2 promptly play the effect of throttling by the effect of pore 41 and capillary porosity duct 21.
When cold-producing medium when valve body 1 left end flows into, cold-producing medium flows into from the capillary porosity duct 21 of quiet spool 2 successively, and promotion movable valve plug 4 moves to right, move under the low order end state at movable valve plug 4, block piece 3 stops movable valve plug 4 to continue to move to right, simultaneously pore 41 and the groove 42 on the movable valve plug 4 is communicated with the passage 31 of block piece 3, the passage 31 that pore 41 and the groove 42 of cold-producing medium by movable valve plug 4 enters block piece 3.
Cold-producing medium from two ends, the left and right sides by the time because the path difference, cold-producing medium is by the length difference of pore, the cold-producing medium flow velocity difference of promptly passing through from two ends, and then realize adapting to refrigeration and heating condition transforms mutually.
Claims (12)
1, a kind of throttle pipe of household air conditioner includes tubular valve body (1), is provided with the quiet spool (2) that is provided with this valve body relative fixed in the valve body (1), and the movable valve plug (4) of the relative valve body axial slip of an energy; It is characterized in that: also be provided with the block piece (3) that is provided with this valve body relative fixed in the described valve body (1), described block piece (3) has the passage (31) that passes through for cold-producing medium; Described movable valve plug (4) is positioned between quiet spool (2) and the block piece (3), has the pore (41) that runs through the axle center in the movable valve plug (4), and have a groove (42) that passes through for cold-producing medium through whole outer surface on the outer surface of movable valve plug (4) at least, only have the capillary porosity duct (21) that runs through its axle center in the described quiet spool (2), and this capillary porosity duct (21) only there is one.
2, throttle pipe of household air conditioner according to claim 1 is characterized in that: described quiet spool (2) is made up of at least two quiet spool monomers (2a, 2b), and adjacent two quiet spool monomers (2a, 2b) fit tightly and form complete quiet spool (2).
3, throttle pipe of household air conditioner according to claim 1 is characterized in that: described quiet spool (2) is made up of at least two quiet spool monomers (2a, 2b), and adjacent two quiet spool monomers (2a, 2b) are provided with at interval.
4, throttle pipe of household air conditioner according to claim 1 is characterized in that: be provided with back-up ring (5) between the described adjacent two quiet spool monomers (2a, 2b).
5, according to the described throttle pipe of household air conditioner of arbitrary claim in the claim 1～4, it is characterized in that: described quiet spool (2) and block piece (3) directly and valve body (1) inwall fix, be provided with one or more cannelure (22) respectively in advance on described quiet spool (2) outer peripheral face, the inwall of described valve body (1) snaps in the described cannelure (22) by extruding.
6, throttle pipe of household air conditioner according to claim 5, it is characterized in that: described block piece (3) is a back-up ring, be provided with one or more cannelure (32) respectively in advance on described block piece (3) outer peripheral face, the inwall of described valve body (1) snaps in the described cannelure (32) by extruding.
7, throttle pipe of household air conditioner according to claim 5 is characterized in that: described block piece (3) is for forming the bulge loop of convex on valve body (1) inwall.
8, throttle pipe of household air conditioner according to claim 5 is characterized in that: described block piece (3) is for plugging and the tube connector of solid welding in valve body (1).
9, according to the described throttle pipe of household air conditioner of arbitrary claim in the claim 1～4, it is characterized in that: described quiet spool (2), also be provided with a bushing pipe (6) between block piece (3) and movable valve plug (4) and valve body (1) inwall, this bushing pipe (6) is fixed with valve body (1) inwall, quiet spool (2) and block piece (3) fixed interval are in described bushing pipe (6), the end face of the outer face of quiet spool (2) and described bushing pipe (6), be provided with one or more cannelure (22) respectively in advance on quiet spool (2) outer peripheral face, described bushing pipe (6) snaps onto in the cannelure (22) by extruding.
10, throttle pipe of household air conditioner according to claim 9, it is characterized in that: described block piece (3) is a back-up ring, on block piece (3) outer peripheral face, be provided with one or more cannelure (32) respectively in advance, the inwall of bushing pipe (6) snaps in the described cannelure (32) by extruding, and the outer face of block piece (3) flushes with the corresponding outer face of described bushing pipe (6) simultaneously.
11, throttle pipe of household air conditioner according to claim 9 is characterized in that: described block piece (5) is for forming the bulge loop of convex on bushing pipe (6) inwall.
12, throttle pipe of household air conditioner according to claim 9 is characterized in that: described block piece (5) is for plugging and the tube connector of solid welding in valve body (1), and the inner face of this tube connector contacts with bushing pipe (6) outer face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139798U CN201352038Y (en) | 2009-02-13 | 2009-02-13 | Throttle pipe for household air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139798U CN201352038Y (en) | 2009-02-13 | 2009-02-13 | Throttle pipe for household air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352038Y true CN201352038Y (en) | 2009-11-25 |
Family
ID=41375426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201139798U Expired - Fee Related CN201352038Y (en) | 2009-02-13 | 2009-02-13 | Throttle pipe for household air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201352038Y (en) |
-
2009
- 2009-02-13 CN CNU2009201139798U patent/CN201352038Y/en not_active Expired - Fee Related
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Granted publication date: 20091125 Termination date: 20140213 |