CN202674326U - Air conditioning cut-off valve for refrigeration system - Google Patents

Air conditioning cut-off valve for refrigeration system Download PDF

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Publication number
CN202674326U
CN202674326U CN 201220312833 CN201220312833U CN202674326U CN 202674326 U CN202674326 U CN 202674326U CN 201220312833 CN201220312833 CN 201220312833 CN 201220312833 U CN201220312833 U CN 201220312833U CN 202674326 U CN202674326 U CN 202674326U
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CN
China
Prior art keywords
valve
valve seat
seal ring
refrigeration
spool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201220312833
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Chinese (zh)
Inventor
王烈钢
王冠军
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Shield (wuhu) Co Ltd In Control
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Shield (wuhu) Co Ltd In Control
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Publication date
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Priority to CN 201220312833 priority Critical patent/CN202674326U/en
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Publication of CN202674326U publication Critical patent/CN202674326U/en
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Abstract

The utility model discloses an air conditioning cut-off valve for a refrigeration system. The air conditioning cut-off valve comprises a valve seat, a valve core and a connecting pipe, wherein the valve core is positioned in the valve seat; the connecting pipe is welded with the valve seat; the lower end of the valve core is provided with a first seal ring; and soft sealing is formed between the first seal ring and a valve seat hole in the valve seat. According to the air conditioning cut-off valve, the first seal ring at the lower end of the valve core is in soft sealing with the valve seat hole, so that the problems of poor sealing property of a straight hole, high raw material cost and high requirement on machining accuracy of parts existing in the conventional air conditioning cut-off valve are solved; and the air conditioning cut-off valve has the characteristic of simple structure, low production cost and better sealing property.

Description

A kind of air-conditioner stop valve for refrigeration system
Technical field:
The utility model relates to the air conditioner refrigerating technical field, especially relates to a kind of air-conditioner stop valve for refrigeration system.
Background technique:
As shown in Figure 1: at present the air-conditioner stop valve used of refrigeration system has valve seat 01, spool 02 and connects the parts such as official 03, its inner seal structure adopts hard sealing structure, coaxality, the degree of finish in hard sealing one line hole require very strict, otherwise will cause a linear sealing poor, it is bad that interior leakage exceeds standard, cause product rejection, increase cost of production.In addition, this kind structure also might cause undetected, issues and causes bad repercussion after the client uses, and affects brand and the market share of product.
The model utility content:
The purpose of this utility model is to provide a kind of new air-conditioner stop valve that is used for refrigeration system for the deficiency of prior art existence, and it has the advantages that cost of production is low, sealing is better.
For achieving the above object, air-conditioner stop valve for refrigeration system of the present utility model includes valve seat, spool and adapter, spool is positioned at valve seat, take over valve seat and weld together, described spool lower end is provided with the first seal ring, forms soft seal between the valve seat orifice in the first seal ring and the valve seat.
Preferred as technique scheme, when described spool was closed, the outer peripheral surface of the first seal ring sealed with the inner peripheral surface of valve seat orifice.
Preferred as technique scheme, the step surface of described valve seat orifice is provided with fillet, the curved shape of the first seal ring.
Preferred as technique scheme, described spool bottom is provided with the Sealing shield ring that prevents that the first seal ring from coming off.
Preferred as technique scheme, described spool upper end is provided with the second seal ring.
The beneficial effects of the utility model are: be arranged at and be soft seal between the seal ring of spool lower end and the valve seat orifice, overcome that existing air-conditioner stop valve one line hole poor sealing performance, the cost of raw material are high, the demanding problem of part processing precision, have simple in structure, cost of production is low, the better characteristics of sealability.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the overall structure schematic diagram of existing air-conditioner stop valve;
Fig. 2 is overall structure schematic diagram of the present utility model;
Fig. 3 is valve seat construction schematic diagram of the present utility model;
Fig. 4 is valve core structure schematic diagram of the present utility model.
Embodiment:
See that Fig. 2 is to shown in Figure 4: the air-conditioner stop valve for refrigeration system of the present utility model includes valve seat 10, spool 20 and takes over 30, spool 20 is positioned at valve seat 10, stub (tube) hole 12 on adapter 30 and the valve seat 10 welds together, spool 20 lower ends are provided with between the valve seat orifice 11 in the first seal ring 40, the first seal rings 40 and the valve seat 10 and form soft seal;
When spool 20 is closed, the sealing of the inner peripheral surface of the outer peripheral surface of the first seal ring 40 and valve seat orifice 11.
The step surface of valve seat orifice 11 is provided with fillet, is scratched when preventing that the first seal ring 40 from entering valve seat orifice 11; The first seal ring 40 curved shapes can enter in the valve seat orifice 11 smoothly with convenient the first seal ring 40.Spool 20 bottoms are provided with the Sealing shield ring 21 that prevents that the first seal ring 40 from coming off.
In addition, spool 20 upper ends are provided with the second seal ring 50, and when spool 20 was closed, external sealed was realized in the upper end, sealing in realize the lower end, and two ends all are soft seals.
The above only is preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model, and every equalization of doing according to the utility model changes with modifying and all belongs in the claim that the utility model contains.

Claims (5)

1. air-conditioner stop valve that is used for refrigeration system, include valve seat (10), spool (20) and take over (30), spool (20) is positioned at valve seat (10), taking over (30) welds together with valve seat (10), it is characterized in that: described spool (20) lower end is provided with the first seal ring (40), forms soft seal between the valve seat orifice (11) in the first seal ring (40) and the valve seat (10).
2. the air-conditioner stop valve for refrigeration system according to claim 1 is characterized in that: described spool (20) is when closing, the sealing of the inner peripheral surface of the outer peripheral surface of the first seal ring (40) and valve seat orifice (11).
3. the air-conditioner stop valve for refrigeration system according to claim 2, it is characterized in that: the step surface of described valve seat orifice (11) is provided with fillet, the curved shape of the first seal ring (40).
4. the air-conditioner stop valve for refrigeration system according to claim 3 is characterized in that: be provided with the Sealing shield ring (21) that prevents that the first seal ring (40) from coming off bottom the described spool (20).
5. each described air-conditioner stop valve for refrigeration system in 4 according to claim 1, it is characterized in that: described spool (20) upper end is provided with the second seal ring (50).
CN 201220312833 2012-06-29 2012-06-29 Air conditioning cut-off valve for refrigeration system Active CN202674326U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220312833 CN202674326U (en) 2012-06-29 2012-06-29 Air conditioning cut-off valve for refrigeration system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220312833 CN202674326U (en) 2012-06-29 2012-06-29 Air conditioning cut-off valve for refrigeration system

Publications (1)

Publication Number Publication Date
CN202674326U true CN202674326U (en) 2013-01-16

Family

ID=47495232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220312833 Active CN202674326U (en) 2012-06-29 2012-06-29 Air conditioning cut-off valve for refrigeration system

Country Status (1)

Country Link
CN (1) CN202674326U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206550A (en) * 2013-04-03 2013-07-17 广东美的制冷设备有限公司 Stop valve for air conditioners
CN104344072A (en) * 2013-08-07 2015-02-11 珠海格力电器股份有限公司 Check valve sealing component, check valve, air conditioner and heat pump water heater
WO2016155201A1 (en) * 2015-04-03 2016-10-06 广东美的暖通设备有限公司 Stop valve and air conditioner having same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206550A (en) * 2013-04-03 2013-07-17 广东美的制冷设备有限公司 Stop valve for air conditioners
CN104344072A (en) * 2013-08-07 2015-02-11 珠海格力电器股份有限公司 Check valve sealing component, check valve, air conditioner and heat pump water heater
WO2016155201A1 (en) * 2015-04-03 2016-10-06 广东美的暖通设备有限公司 Stop valve and air conditioner having same
US10378658B2 (en) 2015-04-03 2019-08-13 Gd Midea Heating & Ventilating Equipment Co., Ltd. Stop valve and air conditioner having the same

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