CN203532787U - Regulating valve - Google Patents

Regulating valve Download PDF

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Publication number
CN203532787U
CN203532787U CN201320627063.0U CN201320627063U CN203532787U CN 203532787 U CN203532787 U CN 203532787U CN 201320627063 U CN201320627063 U CN 201320627063U CN 203532787 U CN203532787 U CN 203532787U
Authority
CN
China
Prior art keywords
valve
spool
seal
valve seat
dovetail groove
Prior art date
Application number
CN201320627063.0U
Other languages
Chinese (zh)
Inventor
方福永
Original Assignee
温州市利尔多阀门有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 温州市利尔多阀门有限公司 filed Critical 温州市利尔多阀门有限公司
Priority to CN201320627063.0U priority Critical patent/CN203532787U/en
Application granted granted Critical
Publication of CN203532787U publication Critical patent/CN203532787U/en

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Abstract

The utility model discloses a regulating valve. According to the technical scheme, the regulating valve comprises a valve body, a valve deck, a valve seat, a valve rod, a valve element, padding and a pressing plate. The valve seat and the valve body are integrally arranged, the valve body and the valve deck are coaxially connected, the valve element is coaxially arranged on the portion, in the valve body, of the lower end of the valve rod, and the valve element and the valve seat are connected in a matched mode. The valve element comprises a valve element body and a boss ring arranged coaxially with the valve element body. A dovetail groove is formed in the end, opposite to the valve element body, of the boss ring and a groove corresponding to the dovetail groove is formed in the side, opposite to the boss ring, of the valve seat. A sealing cavity is formed between the dovetail groove and the groove, a soft sealing piece is arranged in the sealing cavity and connected with the dovetail groove, the primary sealing match between the valve element body and the valve seat is formed, and the secondary sealing match between the soft sealing piece and the valve seat is achieved. According to the regulating valve, the hard sealing structure between the valve element and the valve seat is improved, the soft sealing piece is additionally arranged, and therefore the sealing performance of the regulating valve is improved.

Description

Modulating valve
Technical field
The utility model relates to the modulating valve in valve class, and more particularly, it relates to a kind of modulating valve.
Background technique
In industrialization machinery, the application of modulating valve becomes requisite parts, some valve bodies requires coordinating between spool and valve seat to require higher, such as requiring good airproof performance, existing seat is generally by coordinating to reach seal request between spool and valve seat, but, owing to being hard sealing structure between the spool of modulating valve and valve seat, closing rear leakage class is IV level, but, many in the situation that, many operating modes are more than but the seal request between demand regulating spool and valve seat reaches VI level, and existing common hard sealing structure cannot meet the demands.Therefore be necessary the structure of the modulating valve of existing hard sealing structure to improve, reach industrial operating mode user demand.
Current Chinese utility model patent 201020153694.X discloses a kind of filler sealing liner fluoroplastic adjusting valve and has comprised valve body 1, spool 7, valve rod 6, valve gap 2, filler 4 and pressing plate 5, described valve body 1 inside is provided with spool guide element 9, described spool guide element 9 one end are fixed, from the other end, coordinating with valve rod 6 outer walls offsets adopts the design modulating valve of this structure to be provided with filler 4 in packing seal chamber, strengthened sealing, but because this structure does not arrange Sealing between spool 7 and the fitting surface of valve seat 3, between spool 7 and valve seat 3, still belong to common hard sealing structure, sealability is poor.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of modulating valve, and this modulating valve improved the structure of hard sealing between spool and valve seat, increased the sealability that soft seal has improved modulating valve.
For achieving the above object, the utility model provides following technological scheme: a kind of modulating valve, comprise valve body, valve gap, valve seat, valve rod, spool, filler and pressing plate, described valve seat and valve body are wholely set, valve body is coaxially connected with valve gap, spool is coaxially installed in valve rod lower end in valve body, spool is realized adjusting and the keying of valve by the driving of valve rod, between spool and valve seat, be connected, described spool comprise spool body and with the boss ring of the coaxial setting of spool body, one end of the relative spool body of described boss ring is provided with dovetail groove, one side of the relative boss ring of described valve seat is provided with the groove corresponding with dovetail groove, between described dovetail groove and groove, form Seal cage, in described Seal cage, be provided with soft seal, described soft seal is connected with dovetail groove, between described spool body and valve seat, forming once sealing coordinates, between described soft seal and valve seat, forming secondary seal coordinates.
By adopting technique scheme, described spool comprise spool body and with the boss ring of the coaxial setting of spool body, one end of the relative spool body of described boss ring is provided with dovetail groove, one side of the relative boss ring of described valve seat is provided with the groove corresponding with dovetail groove, between described dovetail groove and groove, form Seal cage, in described Seal cage, be provided with soft seal, described soft seal is connected with dovetail groove, between described spool body and valve seat, forming once sealing coordinates, between described soft seal and valve seat, forming secondary seal coordinates, can fully guarantee the sealing effect between spool and valve seat, improved the sealability of modulating valve.
The utility model is further set to: described soft seal is rubber seal, and shape and the Seal cage of described rubber seal are suitable.
By adopting technique scheme, soft seal is rubber seal, and shape and the Seal cage of described rubber seal are suitable, can further improve the sealing of modulating valve.
The utility model is further set to: described valve inner is also provided with spool guide element, and described spool guide element is cylindrical, and the inwall of spool guide element matches with valve rod outer wall.
By adopting technique scheme, described valve inner is also provided with spool guide element, described spool guide element is cylindrical, and the inwall of spool guide element matches with valve rod outer wall, and the design of this structure can avoid spool to vibrate when being subject to fluid impact.
The utility model is further set to: described valve interior wall, spool, valve rod are all lined with fluoroplastics layer.
By adopting technique scheme, described valve interior wall, spool, valve rod are all lined with fluoroplastics layer, can improve the corrosion resistance of modulating valve, extend the working life of modulating valve.
Accompanying drawing explanation
Fig. 1 is the utility model modulating valve embodiment's structural representation;
Fig. 2 is the structural representation of prior art modulating valve.
Reference character: 1, valve body; 2, valve gap; 3, valve seat; 31, groove; 4, filler; 5, pressing plate; 6, valve rod; 7, spool; 71, spool body; 72, boss ring; 721, dovetail groove; 8, soft seal; 9, spool guide element.
Embodiment
With reference to Fig. 1, the utility model modulating valve embodiment is described further.
A kind of modulating valve, comprise valve body 1, valve gap 2, valve seat 3, valve rod 6, spool 7, filler 4 and pressing plate 5, described valve seat 3 is wholely set with valve body 1, valve body 1 is coaxially connected with valve gap 2, spool 7 is coaxially installed in valve rod 6 lower ends in valve body 1, spool 7 is realized adjusting and the keying of valve by the driving of valve rod 6, between spool 7 and valve seat 3, be connected, described spool 7 comprise spool body 71 and with the boss ring 72 of the coaxial setting of spool body 71, one end of described boss ring 72 relative spool bodies 71 is provided with dovetail groove 721, one side of described valve seat 3 relative boss rings 72 is provided with the groove corresponding with dovetail groove 721 31, between described dovetail groove 721 and groove 31, form Seal cage, in described Seal cage, be provided with soft seal 8, described soft seal 8 is connected with dovetail groove 721, between described spool body 71 and valve seat 3, forming once sealing coordinates, between described soft seal 8 and valve seat 3, forming secondary seal coordinates.
By adopting technique scheme, described spool 7 comprise spool body 71 and with the boss ring 72 of the coaxial setting of spool body 71, one end of described boss ring 72 relative spool bodies 71 is provided with dovetail groove 721, one side of described valve seat 3 relative boss rings 72 is provided with the groove corresponding with dovetail groove 721 31, between described dovetail groove 721 and groove 31, form Seal cage, in described Seal cage, be provided with soft seal 8, described soft seal 8 is connected with dovetail groove 721, between described spool body 71 and valve seat 3, forming once sealing coordinates, between described soft seal 8 and valve seat 3, forming secondary seal coordinates, can fully guarantee the sealing effect between spool 7 and valve seat 3, improved the sealability of modulating valve.
Described soft seal 8 is rubber seal, and shape and the Seal cage of described rubber seal are suitable.
By adopting technique scheme, soft seal 8 is rubber seal, and shape and the Seal cage of described rubber seal are suitable, can further improve the sealing of modulating valve.
Described valve body 1 inside is also provided with spool guide element 9, and described spool guide element 9 is cylindrical, and the inwall of spool guide element 9 matches with valve rod 6 outer walls.
By adopting technique scheme, described valve body 1 inside is also provided with spool guide element 9, described spool guide element 9 is cylindrical, and the inwall of spool guide element 9 matches with valve rod 6 outer walls, and the design of this structure can avoid spool 7 to vibrate when being subject to fluid impact.
Described valve interior wall, spool 7, valve rod 6 are all lined with fluoroplastics layer.
By adopting technique scheme, described valve interior wall, spool 7, valve rod 6 are all lined with fluoroplastics layer, can improve the corrosion resistance of modulating valve, extend the working life of modulating valve.

Claims (4)

1. a modulating valve, comprise valve body, valve gap, valve seat, valve rod, spool, filler and pressing plate, described valve seat and valve body are wholely set, valve body is coaxially connected with valve gap, spool is coaxially installed in valve rod lower end in valve body, between spool and valve seat, be connected, it is characterized in that: described spool comprise spool body and with the boss ring of the coaxial setting of spool body, one end of the relative spool body of described boss ring is provided with dovetail groove, one side of the relative boss ring of described valve seat is provided with the groove corresponding with dovetail groove, between described dovetail groove and groove, form Seal cage, in described Seal cage, be provided with soft seal, described soft seal is connected with dovetail groove, between described spool body and valve seat, forming once sealing coordinates, between described soft seal and valve seat, forming secondary seal coordinates.
2. modulating valve according to claim 1, is characterized in that: described soft seal is rubber seal, and shape and the Seal cage of described rubber seal are suitable.
3. modulating valve according to claim 1 and 2, is characterized in that: described valve inner is also provided with spool guide element, and described spool guide element is cylindrical, and the inwall of spool guide element matches with valve rod outer wall.
4. modulating valve according to claim 3, is characterized in that: described valve interior wall, spool, valve rod are all lined with fluoroplastics layer.
CN201320627063.0U 2013-10-11 2013-10-11 Regulating valve CN203532787U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320627063.0U CN203532787U (en) 2013-10-11 2013-10-11 Regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320627063.0U CN203532787U (en) 2013-10-11 2013-10-11 Regulating valve

Publications (1)

Publication Number Publication Date
CN203532787U true CN203532787U (en) 2014-04-09

Family

ID=50418997

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320627063.0U CN203532787U (en) 2013-10-11 2013-10-11 Regulating valve

Country Status (1)

Country Link
CN (1) CN203532787U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105626879A (en) * 2014-11-20 2016-06-01 罗伯特·博世有限公司 Gas valve and method for manufacturing sealing element
CN106090251A (en) * 2016-08-26 2016-11-09 成都欧浦特控制阀门有限公司 A kind of anti-wear valve core
CN106286867A (en) * 2016-08-26 2017-01-04 成都欧浦特控制阀门有限公司 A kind of spool for cylinder control valve
CN109630701A (en) * 2019-02-19 2019-04-16 宁夏银星吴忠仪表流体控制有限公司 The regulating valve of good antiscale property and low friction resistance
CN110541940A (en) * 2019-08-23 2019-12-06 江苏亿阀股份有限公司 Pneumatic regulating valve with double-layer composite sealing ring

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105626879A (en) * 2014-11-20 2016-06-01 罗伯特·博世有限公司 Gas valve and method for manufacturing sealing element
CN105626879B (en) * 2014-11-20 2019-04-09 罗伯特·博世有限公司 Gas trap and method for manufacturing sealing element
CN106090251A (en) * 2016-08-26 2016-11-09 成都欧浦特控制阀门有限公司 A kind of anti-wear valve core
CN106286867A (en) * 2016-08-26 2017-01-04 成都欧浦特控制阀门有限公司 A kind of spool for cylinder control valve
CN109630701A (en) * 2019-02-19 2019-04-16 宁夏银星吴忠仪表流体控制有限公司 The regulating valve of good antiscale property and low friction resistance
CN110541940A (en) * 2019-08-23 2019-12-06 江苏亿阀股份有限公司 Pneumatic regulating valve with double-layer composite sealing ring
CN110541940B (en) * 2019-08-23 2021-04-02 江苏亿阀股份有限公司 Pneumatic regulating valve with double-layer composite sealing ring

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140409

Termination date: 20151011

EXPY Termination of patent right or utility model