CN205331464U - Valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia - Google Patents

Valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia Download PDF

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Publication number
CN205331464U
CN205331464U CN201521122899.0U CN201521122899U CN205331464U CN 205331464 U CN205331464 U CN 205331464U CN 201521122899 U CN201521122899 U CN 201521122899U CN 205331464 U CN205331464 U CN 205331464U
Authority
CN
China
Prior art keywords
valve
valve rod
flap
annular groove
rod
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.)
Expired - Fee Related
Application number
CN201521122899.0U
Other languages
Chinese (zh)
Inventor
高希和
武延峰
张玉霞
张在庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIAOZUO JIAOLENG AMMONIA VALVE Co Ltd
Original Assignee
JIAOZUO JIAOLENG AMMONIA VALVE Co Ltd
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 JIAOZUO JIAOLENG AMMONIA VALVE Co Ltd filed Critical JIAOZUO JIAOLENG AMMONIA VALVE Co Ltd
Priority to CN201521122899.0U priority Critical patent/CN205331464U/en
Application granted granted Critical
Publication of CN205331464U publication Critical patent/CN205331464U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of the stop valve. A valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia, includes valve body, valve clack, valve rod and valve gap, valve rod and valve gap pass through threaded connection, and be provided with packing seal layer and gland nut between valve gap upper portion inner wall and valve rod, valve clack upper portion be provided with the counter bore that matches with the valve rod the counter bore inner wall on set up the annular groove coaxial with the counter bore, valve rod lower part outer wall on also be provided with the annular groove to placed the steel ball in the annular groove of two correspondences, still seted up the through -hole and the screw that correspond with the annular groove on the counter bore lateral wall. The utility model discloses a single valve pole structure need not the lower valve rod linkage to realize the rising and the decline of valve clack, valve rod and valve clack can avoid the case to rotate through " bearing formula " connection structure.

Description

The ammonia bellows stop valve of valve rod and flap new Joining Structure
Technical field
This utility model belongs to stop valve technical field, is specifically related to the ammonia bellows stop valve of a kind of valve rod and flap new Joining Structure。
Background technology
Ammonia bellows stop valve in the market is almost nil, in order to my company that plugs a gap have studied a novel ammonia bellows stop valve, and the bellows stop valve on market is generally adopted upper and lower valve rod type and is rising stem (RS.), the service life of its overall transmission and sealing structure is shorter, it is impossible to use in the high-risk mixture condition such as liquefied ammonia。
Utility model content
The purpose of this utility model is for above-mentioned Problems existing and deficiency, it is provided that a kind of reasonable in design, can be applicable to the ammonia bellows stop valve of valve rod and the flap new Joining Structure of the operating mode of high-risk medium。
For reaching above-mentioned purpose, adopted the technical scheme that:
A kind of ammonia bellows stop valve of valve rod and flap new Joining Structure, including valve body, flap, valve rod and valve gap, described valve rod and valve gap are threaded connection, and between valve gap upper inside wall and valve rod, it is provided with packing seal layer and clamp nut, described flap top is provided with the counterbore mated with valve rod, described counterbore inwall offers the annular groove coaxial with counterbore, described stem lower portion outer wall is also equipped with annular groove, the described annular groove on counterbore inwall mates corresponding with the annular groove on valve rod outer wall, and it is placed with steel ball in two corresponding annular grooves, counterbore sidewall is further opened with the through hole corresponding with annular groove, on described through hole, coupling is provided with screw。
Being arranged with corrugated tube on described valve rod, the upper and lower two ends of described corrugated tube are respectively arranged with upper flange plate and lower flange, and described lower flange is fixing with flap to be welded, and described upper flange plate coupling sealing is pressed between valve body and valve gap。
Being provided with on described flap in step-like seam boss, described lower flange is provided with the seam heavy stand corresponding with seam boss coupling, the downside of described upper flange plate is provided with ring packing heavy stand, and between upper flange plate and valve body, pressure is provided with seal washer。
Adopt technique scheme, acquired provide the benefit that:
This utility model is by single stem structure, it is not necessary to upper lower valve rod linkage, thus realizing the raising and lowering of flap, valve rod and flap by " bearing-type " attachment structure, it is possible to avoid valve core rotation;This utility model adopts dark bar structural design, and is provided with airtight and watertight padding layer between valve gap and valve rod, and the sealing offer for whole stop valve effectively ensures for last one。
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model。
Fig. 2 is the fit structure schematic diagram of valve rod and flap。
Fig. 3 is the mounting structure schematic diagram of corrugated tube。
Sequence number in figure: 1 be valve body, 2 be flap, 3 be valve rod, 4 be valve gap, 5 be packing seal layer, 6 be clamp nut, 7 be annular groove, 8 be steel ball, 9 be through hole, 10 be screw, 11 be corrugated tube, 12 be upper flange plate, 13 be lower flange, 14 be seam boss, salty platform till 15,16 be ring packing heavy stand, 17 be seal washer。
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated。
Referring to Fig. 1-Fig. 3, the ammonia bellows stop valve of a kind of valve rod of this utility model and flap new Joining Structure, including valve body 1, flap 2, valve rod 3 and valve gap 4, described valve rod 3 is threaded connection with valve gap 4, and between valve gap 4 upper inside wall and valve rod 3, it is provided with packing seal layer 5 and clamp nut 6, described flap 2 top is provided with the counterbore mated with valve rod 3, described counterbore inwall offers the annular groove 7 coaxial with counterbore, described valve rod 3 bottom outer wall is also equipped with annular groove 7, the described annular groove on counterbore inwall mates corresponding with the annular groove on valve rod outer wall, and in two corresponding annular grooves, it is placed with steel ball 8, counterbore sidewall is further opened with the through hole 9 corresponding with annular groove, on described through hole, coupling is provided with screw 10。
Described valve rod 3 is arranged with corrugated tube 11, described corrugated tube about 11 two ends are respectively arranged with upper flange plate 12 and lower flange 13, described lower flange 13 is fixing with flap 2 to be welded, described upper flange plate 12 mates sealing and is pressed between valve body 1 and valve gap 4, described flap 2 is provided with in step-like seam boss 14, described lower flange is provided with and mates corresponding seam heavy stand 15 with seam boss 14, the downside of described upper flange plate is provided with ring packing heavy stand 16, and between upper flange plate and valve body, pressure is provided with seal washer 17。
This utility model is by single stem structure, it is not necessary to upper lower valve rod linkage, thus realizing the raising and lowering of flap, valve rod and flap by " bearing-type " attachment structure, it is possible to avoid valve core rotation;This utility model adopts dark bar structural design, and is provided with airtight and watertight padding layer between valve gap and valve rod, and the sealing offer for whole stop valve effectively ensures for last one。
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; simply principles of the invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within claimed the scope of the present invention。The protection domain of application claims is defined by appending claims and equivalent thereof。

Claims (3)

1. the ammonia bellows stop valve of a valve rod and flap new Joining Structure, it is characterized in that: include valve body, flap, valve rod and valve gap, described valve rod and valve gap are threaded connection, and between valve gap upper inside wall and valve rod, it is provided with packing seal layer and clamp nut, described flap top is provided with the counterbore mated with valve rod, described counterbore inwall offers the annular groove coaxial with counterbore, described stem lower portion outer wall is also equipped with annular groove, the described annular groove on counterbore inwall mates corresponding with the annular groove on valve rod outer wall, and it is placed with steel ball in two corresponding annular grooves, counterbore sidewall is further opened with the through hole corresponding with annular groove, on described through hole, coupling is provided with screw。
2. the ammonia bellows stop valve of valve rod according to claim 1 and flap new Joining Structure, it is characterized in that: described valve rod is arranged with corrugated tube, the upper and lower two ends of described corrugated tube are respectively arranged with upper flange plate and lower flange, described lower flange is fixing with flap to be welded, and described upper flange plate coupling sealing is pressed between valve body and valve gap。
3. the ammonia bellows stop valve of valve rod according to claim 2 and flap new Joining Structure, it is characterized in that: described flap is provided with in step-like seam boss, described lower flange is provided with the seam heavy stand corresponding with seam boss coupling, the downside of described upper flange plate is provided with ring packing heavy stand, and between upper flange plate and valve body, pressure is provided with seal washer。
CN201521122899.0U 2015-12-31 2015-12-31 Valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia Expired - Fee Related CN205331464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521122899.0U CN205331464U (en) 2015-12-31 2015-12-31 Valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521122899.0U CN205331464U (en) 2015-12-31 2015-12-31 Valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia

Publications (1)

Publication Number Publication Date
CN205331464U true CN205331464U (en) 2016-06-22

Family

ID=56313604

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521122899.0U Expired - Fee Related CN205331464U (en) 2015-12-31 2015-12-31 Valve rod and novel connection structure's of valve clack corrugated tube stop valve for ammonia

Country Status (1)

Country Link
CN (1) CN205331464U (en)

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Legal Events

Date Code Title Description
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: 20160622

Termination date: 20201231