CN201265986Y

CN201265986Y - Household air conditioner throttle pipe

Info

Publication number: CN201265986Y
Application number: CNU2008201219162U
Authority: CN
Inventors: 金仁召
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2009-07-01
Anticipated expiration: 2018-07-23

Abstract

The utility model relates to a throttle pipe of a domestic air conditioner, which comprises a pipy valve body, a left static valve core, a right static valve core, a movable valve core and a screened pipe. The outer end face of each static valve core and the outer end face of the screened pipe are level. The outer peripheral face of the left static valve core is provided with a spiral groove, and outlets at both ends of the spiral groove penetrate through the inner end face and the outer end face of the left static valve core. The right static valve core is provided with pores, and the outer peripheral face of the right static valve core is matched with the inner wall of the valve body in a sealing fit mode. A cavity is arranged between the outer peripheral face of the movable valve core and the inner wall of the valve body. The end face of the movable valve core is provided with axial pinholes, the middle of the movable valve core is provided with radial pinholes, and the cavity, the radial pinholes and the axial pinholes jointly form a channel by which freezing media can flow to the pores on the right static valve core from the left static valve core. People can adopt lathe work with low cost to process the spiral groove at the outer peripheral face of the static valve core relatively to process the pores, the process speed is high, and the processing manufacture craft is simplified, thereby the cost of a product can be reduced, and the quality and the function of the product can be improved.

Description

A kind of throttle pipe of household air conditioner

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 a kind of throttle pipe so the Chinese utility model patent " a kind of air conditioner refrigerating throttle pipe " of ZL200420090859.8 (notification number is CN2769788Y) has disclosed, it comprises that device is at ducted columniform motion block with decide piece, wherein the two ends of motion block are the dome conical surface, and there is an aperture to run through the motion block axle center, be coolant channel, this motion block can be free to slide in the cavity of deciding the formation of piece and described duct wall; Describedly decide totally two of pieces, the suitable distance of being separated by also is individually fixed in described inner-walls of duct, the end face adjacent with described motion block is the recessed taper seat that coincide with the motion block end face, the other end is the plane or the conical surface, describedly decide piece end face a plurality of perforation apertures that distribute, and its axle center is the capillary passage aisle, be coolant channel, and described two to decide the axial dimension of piece inequality, can change in the air-conditioning refrigeration system that the length of throttle capillary tube adapts to refrigeration and heating condition transforms mutually, to reach throttling performance matching requirements capillaceous when regulating refrigeration and heating, improve the economy of air-conditioning refrigeration system.

Yet the processing and fabricating of axle center throttle capillary tube hole path of deciding piece in above-mentioned " air conditioner refrigerating throttle pipe " is cumbersome, and the cost height.

The utility model content

Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of structure comparatively rationally, processing and fabricating is more convenient and help to promote product function and the throttle pipe of household air conditioner that reduces product cost.

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, be disposed on left quiet spool and right quiet spool in the described valve body, has first spout hole that passes through for cold-producing medium in the quiet spool in a described left side, has second spout hole that passes through for cold-producing medium in the quiet spool in the described right side, in valve body, also be provided with a valve body axial slip and be positioned at a left side relatively, movable valve plug between the right two quiet spools, the outer face, the left and right sides of this movable valve plug can be respectively and a described left side, the inner face contact of right quiet spool cooperates with first, two spout holes block; It is characterized in that: between described left and right quiet spool and movable valve plug and valve interior wall, also be provided with a bushing pipe, this bushing pipe and described valve interior wall are fixed, described left and right quiet valve core chamber is in being fixed in described bushing pipe, and the outer face of each quiet spool flushes with the outer face of described bushing pipe; The outer peripheral face of the quiet spool in a described left side has the helicla flute that passes through for cold-producing medium through whole outer surface, and the outlet at these helicla flute two ends runs through the interior outer face of left quiet spool; Place, the axle center of the quiet spool in the described right side has a pore that axially runs through, and second spout hole on the quiet spool in the described right side has two and axially run through right quiet spool at least, is sealed and matched between the inwall of quiet spool outer peripheral face in the described right side and valve body; Described movable valve plug periphery has at least two evaginations and projection described valve interior wall sliding fit, and movable valve plug has cavity between outer peripheral face between two projections and valve interior wall, the movable valve plug end that is positioned at right quiet spool one side have with right quiet spool on the corresponding axial aperture of pore, middle part at movable valve plug also is provided with a radial hole at least, the two ends of this radial hole communicate with described cavity, the middle part of radial hole communicates with described pore, described cavity, radial hole, axial aperture forms the passage that flows to pore on the right quiet spool for cold-producing medium from the quiet spool in a left side jointly.

Rectangular, the square or semicircle of above-mentioned spiral fluted cross section is good with semicircular in shape.This helicla flute can also be that the single head helicla flute can also multi-head spiral groove.

It is good cooperating with plane contact between the outer face of above-mentioned movable valve plug and the inner face of quiet spool.The plane cooperates the structure that can simplify movable valve plug and quiet spool, certainly, also can adopt in the prior art conical surface or sphere to cooperate between the outer face of movable valve plug and the inner face of quiet spool, the conical surface or sphere cooperate the effect that can improve spout hole on the quiet spool of movable valve plug shutoff, but its structure relative complex.

Because bushing pipe outer peripheral face and valve body inner peripheral surface are smooth structure, be fixed together to good in mode between therefore above-mentioned bushing pipe outer peripheral face and the valve interior wall by extruding, the mode of extruding has the simple advantage in location; For not damaging the helicla flute on the left quiet valve core outer surface, the quiet spool in a described left side is fixed by alignment pin and bushing pipe inwall; Because right quiet spool outer peripheral face is level and smooth, the mode by extruding between quiet spool outer peripheral face in the described right side and the bushing pipe inwall is fixed together, and the locate mode of extruding has the simple advantage in location.

Described first spout hole laterally runs through the axle center of left quiet spool, because spout hole is arranged on the place, axle center of quiet spool, is convenient to the processing location to spout hole.Second spout hole of right quiet spool has four, evenly be arranged on pore around.But certainly also two or more

Above-mentioned movable valve plug periphery has four evaginations and projection described bushing pipe inwall sliding fit, these four projections evenly are provided with at interval along the movable valve plug outer peripheral face, the stability that four projections can be guaranteed movable valve plug slippage in valve body evenly at interval is set, certainly also two or more projections.Described radial hole is right-angled intersection and arranges to have two for good.Can guarantee flowing of cold-producing medium.

Compared with prior art, advantage of the present utility model is: design of the present utility model is that its outer peripheral face of quiet spool is provided with the helicla flute that passes through for cold-producing medium through whole outer surface therein, the outlet at these helicla flute two ends is located at respectively on the interior outer face of quiet spool, this helical groove structure is equivalent to the capillary pipe structure of quiet spool in the prior art, after spout hole on the movable valve plug end face will this quiet spool blocked, cold-producing medium can only be discharged through helicla flute after by the passage of movable valve plug.As everyone knows, capillary pipe structure is to offer a minimum hole on movable valve plug, and will process this pore on movable valve plug is very difficult, and process velocity is slow, the relative cost height, and can adopt the low turning processing of cost at quiet spool outer peripheral face processing helicla flute, and process velocity is fast, simplifies processing technology thereof, thereby can reduce product cost, the requirement that cooperates between quiet spool outer peripheral face and the valve interior wall be can reduce simultaneously, product quality and function helped promoting.This technical scheme has increased these parts of bushing pipe simultaneously, this scheme can make the installation location of two quiet spools 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 two quiet spools into then from the bushing pipe two ends, only need to keep the outer face of two quiet spools to flush with the bushing pipe outer face, each parts is in place, therefore install very convenient, while is according to the profile and the size of quiet spool, need be provided with bushing pipe in the somewhere of quiet spool and fix, we can record just in the bushing pipe outside where alignment pin or screw need be set, so the location of quiet spool is also accurately convenient.

Description of drawings

Fig. 1 is the structure cutaway view of the utility model embodiment;

Fig. 2 is that the A-A of Fig. 1 is to cutaway view;

Fig. 3 is the side view of the utility model embodiment;

Fig. 4 is the structural representation of quiet spool among the utility model embodiment.

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. 1～3.

A kind of throttle pipe of household air conditioner, include tubular valve body 1, valve body 1 is generally made by copper or aluminium or steel pipe, be interval with the left and right

quiet spool

2,3 that directly fixedly installs with described valve body 1 in the valve body 1, have first spout hole 21 that passes through for cold-producing medium in the quiet spool 2 in a described left side, this first spout hole 21 laterally runs through the axle center of left quiet spool 2; Have second spout hole 31 that passes through for cold-producing medium in the quiet spool 3 in the described right side, this second spout hole 31 laterally runs through the axle center of right quiet spool 3, and the axle center that first and second spout hole 21,31 is arranged on left and right

quiet spool

2,3 is located, and is convenient to processing like this.

Also be provided with a bushing pipe 6 between left and right

quiet spool

2,3 and movable valve plug 4 and valve body 1 inwall, this bushing pipe 6 adopts metal material to make, and the mode by extruding between bushing pipe 6 and described valve body 1 inwall is fixed together.

Described left and right

quiet spool

2,3 fixed interval are in described bushing pipe 6, and promptly left and right

quiet spool

2,3 is fixed with valve body 1 indirectly, and the outer face of each

quiet spool

2,3 flushes with the outer face of described bushing pipe 6.

The outer peripheral face of the quiet spool 2 in a described left side is provided with described helicla flute 22, the place, axle center of the quiet spool 3 in the described right side has a pore that axially runs through 32, and the spout hole 31 of right quiet spool 3 has four, be arranged on the both sides of pore 32, certainly spout hole 31 also can be three or more, movable valve plug 4 ends that are positioned at right quiet spool 3 one sides have with right quiet spool 3 on pore 32 corresponding axial aperture 42, this axial aperture 42 left ends sealing, promptly this axial aperture 42 does not axially run through, and liquid sealing cooperates between the inwall of quiet spool 3 outer peripheral faces in the described right side and bushing pipe 6.

The quiet spool 2 in a described left side is fixed by alignment pin 5 and bushing pipe 6 inwalls, and the mode by extruding between quiet spool 3 outer peripheral faces in the described right side and bushing pipe 6 inwalls is fixed together.

Also be provided with the movable valve plug 4 of valve body 1 axial slip relatively in the bushing pipe 6 between left and right

quiet spool

2,3, movable valve plug 4 can adopt copper or aluminium or plastics to make, movable valve plug 4 two ends are cylindric, distance between the left and right

quiet spool

2,3 is greater than the axial dimension of movable valve plug 4, to guarantee that movable valve plug 4 can slippage between left and right

quiet spool

2,3.

Described movable valve plug 4 peripheries have four evaginations and projections 41 described bushing pipe 6 inwall sliding fits, and these four projections 41 evenly are provided with at interval along movable valve plug 4 outer peripheral faces, and movable valve plug 4 has cavity X between the outer peripheral face of 41 of two projections and bushing pipe 6 inwalls.

Two outer faces of described movable valve plug 4 can contact with the inner face of left and right

quiet spool

2,3 and cooperate so that the spout hole 31 on the quiet spool 3 in the right side is blocked, middle part at movable valve plug 4 also is provided with two radial holes 43 at least, the two ends of this radial hole 43 communicate with described cavity X, the middle part of radial hole 43 communicates with described pore 32, described cavity X, radial hole 43, the axial aperture 42 common passages that flow to pore 32 on the right quiet spool for cold-producing medium from the quiet spool 2 in a left side that form.

The operation principle of present embodiment and process are such.

When cold-producing medium flows into from valve body 1 right-hand member, mainly four of quiet spool 3 spout holes 31 flow into cold-producing medium from the right side, promoting movable valve plug 4 moves to left, the left side of movable valve plug 4 contact with the right inner face of left quiet spool 2 with the quiet spool 2 in a left side spout hole 21 block, therefore, cold-producing medium can only flow through 22 discharges of the helicla flute on the quiet spool 2 via a left side again at the outer peripheral face and the cavity X between valve body 1 inwall of 41 of two projections by movable valve plug 4, to play the effect of throttling.

When cold-producing medium flows into from valve body 1 left end, mainly the spout hole 21 of quiet spool 2 flows into cold-producing medium from a left side, promoting movable valve plug 4 moves to right, the right side of movable valve plug 4 contacts with two spout holes 31 with the quiet spool 3 in the right side with the left inner face of right quiet spool 3 and blocks, therefore cold-producing medium can only flow into radial hole 43 at the outer peripheral face and the cavity X between valve body 1 inwall of 41 of two projections by movable valve plug 4, identical by axial aperture 42 again with the pore 32 in right quiet spool 3 axle center, and have the pore 32 of right quiet spool 3 to discharge, play the effect of throttling.

Claims

1, a kind of throttle pipe of household air conditioner, include tubular valve body (1), be disposed on left quiet spool (2) and right quiet spool (3) in the described valve body (1), has first spout hole (21) that passes through for cold-producing medium in the quiet spool in a described left side (2), has second spout hole (31) that passes through for cold-producing medium in the quiet spool in the described right side (3), in valve body (1), also be provided with valve body (a 1) axial slip and be positioned at a left side relatively, right two quiet spools (2,3) movable valve plug between (4), the outer face, the left and right sides of this movable valve plug (4) can be respectively and a described left side, right quiet spool (2,3) contact of inner face cooperates with first, two spout holes (21,31) block; It is characterized in that:

Between described left and right quiet spool (2,3) and movable valve plug (4) and valve body (1) inwall, also be provided with a bushing pipe (6), this bushing pipe (6) is fixed with described valve body (1) inwall, described left and right quiet spool (2,3) fixed interval is in described bushing pipe (6), and the outer face of each quiet spool (2,3) flushes with the outer face of described bushing pipe (6);

The outer peripheral face of the quiet spool in a described left side (2) has the helicla flute (22) that passes through for cold-producing medium through whole outer surface, and the outlet at this helicla flute (22) two ends runs through the interior outer face of left quiet spool (2); The place, axle center of the quiet spool in the described right side (3) has a pore that axially runs through (32), second spout hole (31) on the quiet spool in the described right side (3) has two and axially run through right quiet spool (3) at least, is sealed and matched between the inwall of the described right side quiet spool (3) outer peripheral face and valve body (1);

Described movable valve plug (4) periphery has at least two evaginations and projection (41) described valve body (1) inwall sliding fit, and movable valve plug (4) has cavity (X) between outer peripheral face between two projections (41) and valve body (1) inwall, movable valve plug (4) end that is positioned at right quiet spool (3) one sides have with right quiet spool on the corresponding axial aperture (42) of pore (32), middle part at movable valve plug (4) also is provided with a radial hole (43) at least, the two ends of this radial hole (43) communicate with described cavity (X), the middle part of radial hole (43) communicates with described pore (32), described cavity (X), radial hole (43), quiet spool (2) flows to the passage that right quiet spool (3) is gone up pore (32) to the common formation of axial aperture (42) from a left side for cold-producing medium.

2, throttle pipe of household air conditioner according to claim 1 is characterized in that: rectangular, the square or semicircle of the cross section of described helicla flute (22).

3, throttle pipe of household air conditioner according to claim 1 is characterized in that: cooperate for plane contact between the inner face of the outer face of described movable valve plug (4) and left and right quiet spool (2,3).

4, throttle pipe of household air conditioner according to claim 1, it is characterized in that: the mode by extruding between described bushing pipe (6) outer peripheral face and valve body (1) inwall is fixed together, the quiet spool in a described left side (2) is fixed by alignment pin (2) and bushing pipe (6) inwall, and the mode by extruding between the described right side quiet spool (3) outer peripheral face and bushing pipe (6) inwall is fixed together.

5, throttle pipe of household air conditioner according to claim 1, it is characterized in that: described first spout hole (21) laterally runs through the axle center of left quiet spool (2), second spout hole (31) of right quiet spool (3) has four, evenly be arranged on pore (32) around.

6, throttle pipe of household air conditioner according to claim 1, it is characterized in that: described movable valve plug (4) periphery has four evaginations and projection (41) described bushing pipe inwall sliding fit, these four projections (41) evenly are provided with at interval along movable valve plug (4) outer peripheral face, described radial hole (43) has two, is right-angled intersection and arranges.