CN204387383U - A kind of improved ball valve - Google Patents

A kind of improved ball valve Download PDF

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Publication number
CN204387383U
CN204387383U CN201420867334.4U CN201420867334U CN204387383U CN 204387383 U CN204387383 U CN 204387383U CN 201420867334 U CN201420867334 U CN 201420867334U CN 204387383 U CN204387383 U CN 204387383U
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CN
China
Prior art keywords
valve
circular groove
utility
barrel
improved ball
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
CN201420867334.4U
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Chinese (zh)
Inventor
邓继林
张庆龙
马浩然
刘雅丽
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.)
Shanghai High & Medium Pressure Valve Co Ltd
Original Assignee
Shanghai High & Medium Pressure 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 Shanghai High & Medium Pressure Valve Co Ltd filed Critical Shanghai High & Medium Pressure Valve Co Ltd
Priority to CN201420867334.4U priority Critical patent/CN204387383U/en
Application granted granted Critical
Publication of CN204387383U publication Critical patent/CN204387383U/en
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Abstract

The utility model relates to machinery valve technical field, specifically a kind of improved ball valve, be fixedly connected with between left valve barrel with right valve barrel, valve body is welded to connect stuffing box, the first circular groove and the second circular groove is provided with in valve body, body top is connected with valve gap, valve gap center of top is vertically connected and fixed valve rod by support, stationary axle is provided with bottom body cavity, valve seat is arranged in the first circular groove and the second circular groove, the front end of the second circular groove is provided with spring, bottom body cavity, two ends are fixed with flap, valve stem seal and valve base sealing place are provided with greasing hole and are provided with grease pouring valve, body base is provided with drainage device.The utility model installation and repairing is convenient, when valve go wrong at work need to repair time, left and right valve body is separable, and easy accessibility facilitates inspection and maintenance.Structure of the present utility model is more convenient for production and processing, and processing cost is low.In addition, the air flowability in the utility model is good, wear-resistant corrosion-resistant, safe and reliable.

Description

A kind of improved ball valve
[technical field]
The utility model relates to machinery valve technical field, specifically a kind of improved ball valve.
[background technique]
As everyone knows, ball valve is valve arrangement conventional in machinery, and open-shut device is driven by valve rod, and around the valve that ball valve axis rotates.Also can be used for the regulating and control of fluid, wherein firmly seal between V-type ball valve its V-type ball core and metal seat valve of pile-up welding hard alloy and there is very strong shearing force, be specially adapted to the medium of fibre-bearing, a small solid material etc.And multi-pass ball valve not only can the interflow of control media, shunting and the switching that flows to flexibly on pipeline, also can close arbitrary passage simultaneously and two other passage is connected.This class valve generally should level be installed in the duct.Ball valve is mainly divided into pneumatic ball valve, electric ball valve, manual ball valve.
But ball valve of the prior art is convenient not when keeping in repair and install, and sealing is good not.Such as need whole taking off when keeping in repair, maintenance difficulty.And the general working effect at normal temperatures of ball valve of the prior art is better, but under low temperature or high-temperature operation, just there will be the situation that sealability sharply declines, safe and reliable not.
[model utility content]
The purpose of this utility model is exactly in order to problem and the defect such as to solve in prior art ball valve installation and repairing difficulty and sealing stability is bad, a kind of novel structure is provided, safe and reliable, easy accessibility and the improved ball valve of honeybee good stability, comprise left valve barrel, right valve barrel, valve seat, valve rod, spring, it is characterized in that being fixedly connected with between left valve barrel with right valve barrel, valve body is welded to connect stuffing box, the first circular groove and the second circular groove is provided with in valve body, body top is connected with valve gap, valve gap center of top is vertically connected and fixed valve rod by support, stationary axle is provided with bottom body cavity, valve seat is arranged in the first circular groove and the second circular groove, the front end of the second circular groove is provided with spring, bottom body cavity, two ends are fixed with flap, valve stem seal and valve base sealing place are provided with greasing hole and are provided with grease pouring valve, body base is provided with drainage device.
Left and right valve body is adopted full welding forged steel structure or is fixedly connected with bayonet socket by buckle.
First circular groove diameter is less than the second circular groove diameter.
The inwall of body cavity both sides is respectively equipped with flap limit stoper.
Stem surface is provided with nickeling layer, and flap is provided with the carbide layers of surfacing.
Compared with the existing technology, its advantage is that the utility model installation and repairing is convenient to the utility model, when valve go wrong at work need to repair time, left and right valve body is separable, and easy accessibility facilitates inspection and maintenance.Also can select sealing full welded structure preferably simultaneously.Secondly, structure of the present utility model is more convenient for production and processing, and processing cost is low.In addition, the air flowability in the utility model is good, wear-resistant corrosion-resistant, safe and reliable.
[accompanying drawing explanation]
Fig. 1 is the main structure schematic diagram of the utility model embodiment;
As shown in the figure, in figure: 1. valve rod 2. valve gap 3. valve body 4. stationary axle 5. drainage device 6. flap.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model is a kind of improved ball valve, and it comprises left valve barrel, right valve barrel, valve seat, valve rod, spring, is fixed structure that is detachable or integral type between left valve barrel and right valve barrel.When adopting demountable structure, be fixedly connected with bayonet socket by buckle.When adopting integral structure, for entirely welding forged steel structure.
Valve body of the present utility model is welded to connect stuffing box, and be provided with the first circular groove and the second circular groove in valve body, body top is connected with valve gap, and valve gap center of top is vertically connected and fixed valve rod by support, as shown in Figure 1.Be provided with stationary axle bottom body cavity, valve seat is arranged in the first circular groove and the second circular groove, and the front end of the second circular groove is provided with spring, forms linkage structure thus.Bottom body cavity, two ends are fixed with flap, and flap is provided with the carbide layers of surfacing, increase hardness.Thrust can make flap limit stoper move left and right in the course of the work, make flap stressed simultaneously and power transmission to valve body, form sealing configuration.Valve stem seal and valve base sealing place are provided with greasing hole and are provided with grease pouring valve, and stem surface is provided with nickeling layer, reduces wear.Also be provided with drainage device at body base, open drainage device when the valve is closed and can clear the endoceliac rubbish incidental of valve.

Claims (5)

1. an improved ball valve, comprise left valve barrel, right valve barrel, valve seat, valve rod, spring, it is characterized in that described left valve barrel is fixedly connected with between right valve barrel, described valve body is welded to connect stuffing box, the first circular groove and the second circular groove is provided with in described valve body, body top is connected with valve gap, valve gap center of top is vertically connected and fixed valve rod by support, stationary axle is provided with bottom body cavity, described valve seat is arranged in the first circular groove and the second circular groove, the front end of the second circular groove is provided with spring, bottom body cavity, two ends are fixed with flap, described valve stem seal and valve base sealing place are provided with greasing hole and are provided with grease pouring valve, described valve body is provided with drainage device.
2. a kind of improved ball valve as claimed in claim 1, is characterized in that described left and right valve body is adopted full welding forged steel structure or is fixedly connected with bayonet socket by buckle.
3. a kind of improved ball valve as claimed in claim 1, is characterized in that the first described circular groove diameter is less than the second circular groove diameter.
4. a kind of improved ball valve as claimed in claim 1, the inwall that it is characterized in that described body cavity both sides is respectively equipped with flap limit stoper.
5. a kind of improved ball valve as claimed in claim 1, it is characterized in that described stem surface is provided with nickeling layer, flap is provided with the carbide layers of surfacing.
CN201420867334.4U 2014-12-26 2014-12-26 A kind of improved ball valve Active CN204387383U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420867334.4U CN204387383U (en) 2014-12-26 2014-12-26 A kind of improved ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420867334.4U CN204387383U (en) 2014-12-26 2014-12-26 A kind of improved ball valve

Publications (1)

Publication Number Publication Date
CN204387383U true CN204387383U (en) 2015-06-10

Family

ID=53360105

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420867334.4U Active CN204387383U (en) 2014-12-26 2014-12-26 A kind of improved ball valve

Country Status (1)

Country Link
CN (1) CN204387383U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111692374A (en) * 2020-07-23 2020-09-22 湖北泰和石化设备有限公司 LNG unloading wall is with two single valve seat hemisphere valves that ally oneself with

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111692374A (en) * 2020-07-23 2020-09-22 湖北泰和石化设备有限公司 LNG unloading wall is with two single valve seat hemisphere valves that ally oneself with
CN111692374B (en) * 2020-07-23 2022-04-15 湖北泰和石化设备有限公司 LNG unloading arm is with single valve seat hemisphere valve of pair

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