CN201265987Y

CN201265987Y - Household air conditioner throttle pipe

Info

Publication number: CN201265987Y
Application number: CNU2008201219177U
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 and a right static valve core. The outer peripheral face of the left static valve core is provided with a spiral groove which penetrates through the whole outer peripheral face and leads freezing media to pass through. The axle center of the right static valve core is provided with a pore which is through in the axial direction. At least two second overflow orifices are arranged on the right static valve core and axially penetrate through the right static valve core. 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 a 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 also provided with radial pinholes, and the cavity, the radial pinholes and the axial pinholes jointly form a channel by which the freezing media can flow to the pores on the right static valve core from the left static valve core. A capillary pipe has a structure that a tiny hole is arranged on the movable valve core. To process the pore on the movable valve core is very difficult, the process speed is low, and the cost is high, however, people can adopt lathe work with low cost to process the spiral groove, the process speed is high, and the product cost can be reduced.

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, left quiet spool and the right quiet spool of fixed interval in 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: 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 left quiet spool outer peripheral face has helicla flute, for avoiding damaging helicla flute, above-mentioned left quiet spool is fixed by alignment pin and valve interior wall, and right quiet spool outer peripheral face is level and smooth, mode by extruding between quiet spool outer peripheral face in the described right side and the valve interior wall 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

Described movable valve plug periphery has four evaginations and projection described valve interior wall sliding fit, and these four projections evenly are provided with at interval along the movable valve plug outer peripheral face, and the stability that four projections can be guaranteed movable valve plug slippage in valve body evenly is set at interval.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.

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 embodiment of the present utility model as Fig. 1～4.

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 the movable valve plug 4 of valve body 1 axial slip relatively in the valve body 1 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.

The outer peripheral face of quiet spool 2 is provided with described helicla flute 22 on a left side, and the quiet spool 2 in a described left side is fixed by alignment pin 5 and valve body 1 inwall.

Mode by extruding between quiet spool 3 outer peripheral faces in the described right side and valve body 1 inwall is fixed together.The place, axle center of the quiet spool 3 in the described right side has a pore that axially runs through 32, and second spout hole 31 of right quiet spool 3 has four, evenly be arranged on pore 32 around, certainly spout hole 31 also can be three or more, and liquid sealing cooperates between the inwall of quiet spool 3 outer peripheral faces in the described right side and valve body 1.

Described movable valve plug 4 peripheries have four evaginations and projection 41 described valve body 1 inwall sliding fit, these four projections 41 evenly are provided with at interval along the outer peripheral face of movable valve plug 4, simultaneously movable valve plug 4 has cavity X between the outer peripheral face of 41 of two projections and valve body 1 inwall, about described movable valve plug 4 between the inner face of two outer faces and this left and right

quiet spool

2,3 for plane contact cooperates, so that first spout hole 21 on the quiet spool 2 in a left side or second spout hole 31 on the right quiet spool 3 are blocked.

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, the sealing of this axial aperture 42 left ends, promptly this axial aperture 42 does not axially run through.

Also be provided with two radial holes 43 at the middle part of movable valve plug 4, being right-angled intersection arranges, the two ends of 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 3 for cold-producing medium from the quiet spool 2 in a left side that form.

The operation principle of present embodiment and process are identical.

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), left quiet spool (2) and the right quiet spool (3) of fixed interval in 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:

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 quiet spool in a described left side (2) is fixed by alignment pin (5) and valve body (1) inwall, and the mode by extruding between the described right side quiet spool (3) outer peripheral face and valve body (1) 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 described valve interior wall sliding fit (41), 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.