CN203980743U - A kind of one-way throttle valve - Google Patents
A kind of one-way throttle valve Download PDFInfo
- Publication number
- CN203980743U CN203980743U CN201420411414.9U CN201420411414U CN203980743U CN 203980743 U CN203980743 U CN 203980743U CN 201420411414 U CN201420411414 U CN 201420411414U CN 203980743 U CN203980743 U CN 203980743U
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- China
- Prior art keywords
- joint
- valve seat
- spool
- valve
- way throttle
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Abstract
The utility model discloses a kind of one-way throttle valve, comprise valve seat, spool and joint, described joint left end links together by the right-hand member of attaching nut and valve seat, the left end of described valve seat is provided with for holding the valve pocket of spool, the inside of described joint is provided with filter screen, described valve pocket porch is provided with taper hole, described joint left end is provided with the circular fin of at least one circle and the pressing of taper hole inner conical surface, described fin has wedge angle portion, described valve seat and joint are fastenedly connected under state, and the wedge angle portion of described fin embeds the inner conical surface of described taper hole.One-way throttle valve of the present utility model, its valve pocket is only positioned at valve seat inside, and technique is simple, and machining accuracy is more easily controlled, and corresponding processing cost is also lower; Its valve seat and joint are fastenedly connected under state, and the inner conical surface of the wedge angle portion inserted valve seat taper hole of joint fin forms metal sealing, seal more reliably, and are difficult for ageing failure; After its attaching nut is connected with joint, in non-destructive situation, be difficult to separatedly, facilitate accumulating.
Description
Technical field
The utility model relates to choke valve field, is specifically related to a kind of one-way throttle valve that plays adjusting refrigerant flow rate in air-conditioning system.
Background technology
Requisite accessory when one-way throttle valve is field of air conditioning adjusting refrigerant flow rate, its common claimed structure is simple, throttling is reliable, be convenient for changing and cost lower etc.
The Chinese utility model patent that notification number is " CN 201221880Y " discloses a kind of removable one-way throttle valve, this one-way throttle valve comprises left joint, nut, spool and right connector, its left joint and right connector link together by nut, after forming one, inner space forms valve pocket, and spool is equipped with in valve pocket inside.Because the valve pocket of this structure one-way choke valve inner space by left and right joint combines, precision of its combination valve pocket is difficult to ensure card, causes the craft precision of processing respectively in left and right joint process to be had relatively high expectations, and production cost is also corresponding higher.
The Chinese utility model patent that notification number is " CN 202485290 U " discloses a kind of removable one-way throttle valve, it comprises left joint, attaching nut, spool, right connector, left joint is connected to right connector left end by attaching nut, right connector left end is built-in with cylindrical hole, and be shaped with conical bore at cylindrical hole inner face, cylindrical hole in left and right joint end, conical bore space forms valve pocket, in its valve pocket, spool is housed, the external cylindrical surface of spool coordinates with the left end cylindrical hole activity of right connector, and the taper seat of the conical bore in spool head and right connector end forms sealing pair, sealing pair comprises soft RunddichtringO.Because the soft RunddichtringO heat resistance of routine is poor, in the process of one-way throttle valve long-term use in air-conditioning, easily aging, inefficacy.
In above-mentioned two pieces of existing patent documentations, attaching nut is all released state with left and right joint, and in the situation that left and right joint not being linked together, its attaching nut without annexation, is difficult for accumulating with corresponding joint.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of seal form is reliable, production cost is lower and craft precision is easier to control, accumulating one-way throttle valve easily.
In order to solve the problems of the technologies described above, the technical scheme that the utility model provides is as follows: a kind of one-way throttle valve, comprise valve seat, spool and joint, the left end of described joint links together by the right-hand member of attaching nut and described valve seat, the left end of described valve seat is provided with for holding the valve pocket of spool, the inside of described joint is provided with filter screen, described valve pocket porch is provided with taper hole, described joint left end is provided with the circular fin of at least one circle and the pressing of described taper hole inner conical surface, described fin has wedge angle portion, described valve seat and joint are fastenedly connected under state, the wedge angle portion of described fin embeds the inner conical surface of described taper hole.
Further, one end of described attaching nut's jointing is provided with inward flange, described joint is provided with the endless groove adapting with described inward flange, the external diameter of described endless groove left side joint is greater than the aperture of described inward flange, the external diameter of described endless groove right side joint is less than the aperture of described inward flange, after described attaching nut is sheathed on described joint, in the end of described inward flange, at least two projections for preventing that attaching nut from being skidded off by endless groove right side are inwardly set; Described attaching nut's the other end is threaded with described valve seat.
Further, described spool is Rhizoma Sparganii spool or many ribs spool, and its inside is provided with throttle orifice.
Further, the periphery of described spool one end is provided with the boss extending radially outward, and one end of described valve pocket is provided with the inner groovy adapting with described boss.
Further, the free end of described valve seat and joint is connected with adapter, and the free end of described adapter is provided with dust cap.
One-way throttle valve of the present utility model, its valve pocket is only positioned at valve seat inside, and technique is simple, and machining accuracy is more easily controlled, and corresponding processing cost is also lower; Its valve seat and joint are fastenedly connected under state, and the inner conical surface of the wedge angle portion inserted valve seat taper hole of joint fin forms metal sealing, seal more reliably, and are difficult for ageing failure; After its attaching nut is connected with joint, in non-destructive situation, be difficult to separatedly, facilitate accumulating.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment one-way throttle valve;
Fig. 2 is the local enlarged diagram of A portion shown in Fig. 1;
Fig. 3 is the local enlarged diagram of B portion shown in Fig. 1;
Fig. 4 is the present embodiment attaching nut's structural representation;
Fig. 5 is the structural representation of the present embodiment valve seat;
Fig. 6 is the structural representation of the present embodiment Rhizoma Sparganii spool;
Fig. 7 is the cross sectional representation of the present embodiment five rib spools;
Fig. 8 is the structural representation that the present embodiment one end is provided with the spool of boss;
Fig. 9 is the structural representation that shown in the present embodiment and Fig. 8, spool is used in conjunction with valve seat;
Description of reference numerals: 1-dust cap, 2-takes over, 3-valve seat, 31-valve pocket, 32-taper hole, 33-inner groovy, 4-spool, 41-throttle orifice, 42-boss, 5-attaching nut, 51-inward flange, 52-projection, 6-joint, 61-fin, 62-endless groove.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the one-way throttle valve of the present embodiment is described in further detail.
A kind of one-way throttle valve of the present embodiment, as shown in Figure 1, comprise valve seat 3 spools 4 and joint 6, the left end of its joint 6 links together with the right-hand member of valve seat 3 by attaching nut 5, its valve seat 3 is connected with respectively adapter 2 with the free end of joint 6, the free end of its adapter 2 is provided with dust cap 1, in the accumulating stage, prevents that dust from entering one-way throttle valve inside.
As shown in Figure 5, valve seat 3 left ends of the present embodiment are provided with for holding the valve pocket 31 of spool 4, and its spool 4 is five rib spools shown in the Rhizoma Sparganii spool shown in Fig. 6 or Fig. 7, can be also many ribs spool of other structures, and its valve core inside is provided with throttle orifice 41.Another kind of valve core structure as shown in Figure 8, in one end of its spool 4, is provided with boss 42 along extending radially outwardly of periphery, and corresponding a kind of valve seat 3 with matching as shown in Figure 9, is provided with corresponding inner groovy 33 in one end of its valve pocket 31.This structure is arranged on valve seat 3 one sides by 31 of valve pockets, makes processing technology simpler, and craft precision also more easily guarantees.Compare with the form of joint both sides with valve pocket being arranged at respectively to valve seat, process costs is lower.
The inside of the present embodiment joint is provided with filter screen 7, as shown in Figure 1, Figure 3, its valve pocket 31 porch are provided with taper hole 32, described joint 6 left ends are provided with the circular fin 61 of at least one circle and taper hole 32 inner conical surface pressings, its fin 61 has wedge angle portion, described valve seat 3 is fastenedly connected under state with joint 6, and the wedge angle portion of its fin 61 embeds the inner conical surface of taper hole 32.The mode of this mechanical seal is compared with sealing ring seal form, and the situation of ageing failure can not occur, and seals more reliably, and service life is also longer.
As shown in Figure 4, one end of its jointing 6 is provided with inward flange 51 to the attaching nut 5 of the present embodiment; As shown in Figure 2, its joint 6 is provided with the endless groove 62 adapting with inward flange 51.The external diameter of its endless groove 62 left side joints is greater than the aperture of inward flange 51, the external diameter of its endless groove 62 right side joints is less than the aperture of inward flange 51, so can easily attaching nut 5 be sheathed on joint 6 by the right-hand member of joint 6, the other end by attaching nut 5 is threaded with valve seat 3, thereby valve seat 3 and joint 6 are fixed together.
In said structure, after attaching nut 5 is sheathed on joint 6, again separated with joint 6 in order to prevent attaching nut 5, the end of flange 51 is inwardly provided with at least two projections 52 for preventing that attaching nut 5 from being skidded off by endless groove 62 right sides within it, and its projection 52 is by welding or riveting and make after attaching nut 5 is sheathed on joint 6.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (6)
1. an one-way throttle valve, comprise valve seat, spool and joint, the left end of described joint links together by the right-hand member of attaching nut and described valve seat, it is characterized in that, the left end of described valve seat is provided with for holding the valve pocket of spool, the inside of described joint is provided with filter screen, described valve pocket porch is provided with taper hole, described joint left end is provided with the circular fin of at least one circle and the pressing of described taper hole inner conical surface, described fin has wedge angle portion, described valve seat and joint are fastenedly connected under state, and the wedge angle portion of described fin embeds the inner conical surface of described taper hole.
2. according to one-way throttle valve claimed in claim 1, it is characterized in that, one end of described attaching nut's jointing is provided with inward flange, described joint is provided with the endless groove adapting with described inward flange, the external diameter of described endless groove left side joint is greater than the aperture of described inward flange, the external diameter of described endless groove right side joint is less than the aperture of described inward flange, after described attaching nut is sheathed on described joint, in the end of described inward flange, at least two projections for preventing that attaching nut from being skidded off by endless groove right side are inwardly set; Described attaching nut's the other end is threaded with described valve seat.
3. according to the one-way throttle valve described in claim 1 or 2, it is characterized in that, described spool is Rhizoma Sparganii spool or many ribs spool, and its inside is provided with throttle orifice.
4. according to the one-way throttle valve described in claim 1 or 2, it is characterized in that, the periphery of described spool one end is provided with the boss extending radially outward, and one end of described valve pocket is provided with the inner groovy adapting with described boss.
5. according to one-way throttle valve claimed in claim 3, it is characterized in that, the periphery of described spool one end is provided with the boss extending radially outward, and one end of described valve pocket is provided with the inner groovy adapting with described boss.
6. according to the one-way throttle valve described in claim 1 or 2 or 5, it is characterized in that, the free end of described valve seat and joint is connected with adapter, and the free end of described adapter is provided with dust cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411414.9U CN203980743U (en) | 2014-07-24 | 2014-07-24 | A kind of one-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411414.9U CN203980743U (en) | 2014-07-24 | 2014-07-24 | A kind of one-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980743U true CN203980743U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411414.9U Active CN203980743U (en) | 2014-07-24 | 2014-07-24 | A kind of one-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203980743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036342A (en) * | 2017-04-19 | 2017-08-11 | 海信（广东）空调有限公司 | A kind of throttle valve adjustment device, debugging system and adjustment method |
-
2014
- 2014-07-24 CN CN201420411414.9U patent/CN203980743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036342A (en) * | 2017-04-19 | 2017-08-11 | 海信（广东）空调有限公司 | A kind of throttle valve adjustment device, debugging system and adjustment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |