CN207421384U - Ball valve - Google Patents

Abstract

The utility model provides a kind of ball valve, is related to the technical field of valve, including ball valve body and handle；Valve rod is provided in the ball valve body, the handle is arranged on the valve rod upper end；Positioning bolt is provided in the ball valve body, and locating plate is provided on the valve rod, the locating plate is located at the handle, at its lower end, and the positioning bolt is located in the rotational trajectory of the locating plate.Locating plate is provided on ball valve provided by the utility model, when operating ball valve by handle, when ball valve body is in closing or maximum stream flow, locating plate is contacted with positioning bolt, and positioning bolt prevents its rotation；It so can be ensured that when operation, handle is not rotated excessively, positioning bolt is arranged on valve body, ball valve is when Reusability, what handle was hit repeatedly with locating plate is positioning bolt, the bolt on valve body for fixation clip is not interfered with so, prevents that bolt unclamps here, it is ensured that medium does not leak from there.

Description

Ball valve

Technical field

The utility model is related to the technical field of valve, more particularly, to a kind of ball valve.

Background technology

Valve be in fluid system, for control the direction of fluid, pressure, flow device, be to make piping and equipment Interior medium (liquid, gas, powder) flowing or stopping simultaneously controlling the device of its flow.

Valve is control unit in pipeline fluid transport system, for changing access section and media flow direction, is had The functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve of fluid control, from simplest shut-off valve The various valves used into extremely complex robot control system(RCS), kind and specification are various.

The inside nominal diameter of valve reaches greatly the industrial pipeline valve of 10m from atomic small gauge valve to latus rectum.Available for controlling The various types such as water, steam, oil product, gas, mud, various Korrosionsmediums, liquid metal and radioactive fluid fluidly flow Super-pressure dynamic, that the operating pressure of valve can be from 0.0013MPa to 1000MPa, what operating temperature can be from -270 DEG C is ultralow Temperature is to 1430 DEG C of high temperature.

A variety of kinds of drive can be used in the control of valve, such as manually, electrically, surge, pneumatically, turbine, electromagnetic driven, electromagnetic liquid Dynamic, electro-hydraulic dynamic, air-or liquid-operated, spur gear, umbrella tooth wheel drive etc.；It can be in the effect of pressure, temperature or other forms transducing signal Under, it is acted by predetermined requirement or does not depend on transducing signal and be simply turned on and off, valve is by driving or certainly Motivation structure lifts opening and closing element, slides, swing or rotary motion, so as to change the size of its flow area to realize its control Function.

Ball valve is that opening and closing element (sphere) is driven by valve rod, and the valve to rotate around ball valve axis.Also can be used for flowing The adjusting and control of body, wherein having firmly between sealing its V-type core of V-type ball valve and the metal seat valve of pile-up welding hard alloy very strong Shearing force, the medium especially suitable for fibre-bearing, small solid pellet etc..And multi-pass ball valve not only can be controlled flexibly on pipeline Interflow, shunting and the switching of flow direction of medium processed, while also can close any passage and other two passage is made to be connected.

Ball valve has good seal performance；Since the sealing of hard seal ball valve is using underhand polish, until spool and sealing Circle fits like a glove and could use；Switch is light；Since the sealing ring bottom of hard seal ball valve makes sealing ring tight with spool using spring It hugs together；Service life is long：It is widely used to each portion such as oil, chemical industry, power generation, papermaking, atomic energy, aviation, rocket In door and people's daily life

There is through hole on the sphere of ball valve, in order to which the through hole for ensureing ball valve can be good at aliging with the cavity in ball valve, Make the flow bigger of the cavity of its ball valve, thus need when operation handle, it is ensured that the through hole of ball valve is formed with cavity Maximum effective passage.

The bolt that the locating plate of the ball valve used now be used to pressing plate being fixed on valve body blocks, in Reusability ball When valve, positioning cards are stuck on bolt repeatedly, can make bolt looseness, the problem of pressing plate is caused to loosen, causes dielectric leakage.

Utility model content

The purpose of this utility model is to provide ball valves, easily cause ball valve with the position limiting structure for alleviating present ball valve handle and are situated between The problem of matter leaks.

A kind of ball valve provided by the utility model, including ball valve body and handle；Valve is provided in the ball valve body Bar, the handle are arranged on the valve rod upper end；

Positioning bolt is provided in the ball valve body, and locating plate is provided on the valve rod, the locating plate position In the handle, at its lower end, the positioning bolt is located in the rotational trajectory of the locating plate.

Further, the locating plate includes mounting portion and limiting section；The mounting portion is mounted on the valve rod, described Limiting section is connected with the mounting portion.

Further, the limiting section is two, and two limiting sections are connected with the mounting portion；And two limits Position portion is in line setting.

Further, the ball valve body includes valve body and valve deck；It is provided in the ball valve body and is flowed through for medium Cavity；Sphere is provided in the cavity；

The sphere both sides are respectively arranged with left valve seat and right valve seat；The left valve seat is arranged on the valve body, the right side Valve seat is arranged on the valve deck.

Further, valve rod is provided on the sphere, and the valve rod extends to ball valve master out of described ball valve body In vitro.

Further, it is provided with to install the mounting hole of anti-static device, the anti-static device on the valve rod It is set along the radial direction of the valve rod；

The anti-static device includes steel ball and spring；The steel ball is contacted with the ball valve.

Further, it is provided with lug boss in the through hole of the valve body；The lug boss lower end is provided with thrust washer.

Further, pressing plate, pressing sleeve and filler are disposed on the valve rod, the pressing plate is arranged on the locating plate Lower end.

Further, locking plate is provided on the pressing plate, the locking plate is mounted on the positioning bolt.

Further, it is provided with clamp spring between the locating plate and the handle.

Locating plate is provided on ball valve provided by the utility model, when operating ball valve by handle, works as ball valve body When in closing or maximum stream flow, locating plate is contacted with positioning bolt, and positioning bolt prevents its rotation；It so can be true It protects when operation, does not rotate handle excessively, positioning bolt is arranged on valve body, and ball valve is when Reusability, handle What is hit repeatedly with locating plate is positioning bolt, does not interfere with the bolt on valve body for fixation clip so, prevents spiral shell here Bolt unclamps, it is ensured that medium does not leak from there.

When in use, by rotating handle, rotate valve rod, the through hole of the sphere on valve rod and cavity are towards phase Together, ball valve at this time reaches maximum aperture, and medium can pass through ball valve with maximum flow；The locating plate of valve rod is stuck in positioning On bolt, valve rod cannot continue to rotate；Handle reversely rotates, when locating plate is stuck on positioning bolt again, ball at this time The through hole of valve is vertical with cavity, and medium cannot pass through sphere；Ball valve is in shutoff device.

Positioning bolt blocks locating plate, and handle can be positioned piece positioning, position ball when ball valve is opened and closed The position of the opening and closing of valve so when operation, can accurately be turned on or off ball valve.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other attached drawings are can also be obtained according to these attached drawings.

Fig. 1 is the structure diagram for the valve that the utility model embodiment provides；

Fig. 2 is the partial enlarged view of the A of valve shown in Fig. 1；

Fig. 3 is the partial enlarged view of the B of valve shown in Fig. 1；

Fig. 4 is the structure diagram of another angle for the valve that the utility model embodiment provides.

Icon：100- valve bodies；200- valve decks；300- spheres；400- pressing plates；401- pressing sleeves；402- fillers； 500- handles；600- valve rods；The left valve seats of 700-；The right valve seats of 800-；900- lumen gaskets；110- lug bosses；120- cards Spring；130- locating plates；140- positioning bolts；150- thrust washers；160- anti-static devices.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected scope.

, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition Concrete meaning of the language in the utility model.

Fig. 1 is the structure diagram for the valve that the utility model embodiment provides；Fig. 2 is the part of the A of valve shown in Fig. 1 Enlarged drawing；Fig. 3 is another angle that partial enlarged view Fig. 4 of the B of valve shown in Fig. 1 is the valve that the utility model embodiment provides The structure diagram of degree.

As Figure 1-Figure 4, a kind of ball valve provided by the utility model, including ball valve body and handle 500；Described Valve rod 600 is provided in ball valve body, the handle 500 is arranged on 600 upper end of valve rod；

Positioning bolt 140 is provided in the ball valve body, and locating plate 130 is provided on the valve rod 600, it is described Locating plate 130 is located at 500 lower end of handle, and the positioning bolt 140 is located in the rotational trajectory of the locating plate 130.

In some embodiments, there is handle 500 in ball valve body, when handle 500 rotates, valve rod 600 is with conveniently Handle 500 rotates, and is achieved in that the on and off of ball valve.

Locating plate 130 is also disposed on valve rod 600, and locating plate 130 follows the rotation of valve rod 600 and rotates；When handle 500 When ball valve is opened to the maximum, locating plate 130 is contacted with positioning bolt 140, and locating plate 130 is stuck on positioning bolt 140, this Sample limits the rotation of valve rod 600, so as to which handle 500 can not continue to rotate, prevents handle 500 from excessively rotating, when handle 500 It reversely rotates, when ball valve is closed, locating plate 130 is also contacted with positioning bolt 140；Positioning bolt 140 limits locating plate 130 continue to rotate；Locating plate 130 is set so on valve rod 600, it can be ensured that when handle 500 opens and closes, but Degree rotation.

As shown in figure 4, on above-described embodiment basis, further, the locating plate 130 includes mounting portion and /V Portion；The mounting portion is mounted on the valve rod 600, and the limiting section is connected with the mounting portion.

In some embodiments, there is perforation on the mounting portion on locating plate 130, mounting portion is mounted on valve rod by perforation On 600；600 top of valve rod is divided into non-circular, and perforation and 600 top of valve rod of mounting portion coincide；So ensure 600 turns of valve rod When dynamic, locating plate 130 also rotates synchronously.

When locating plate 130 rotates, in some angle of locating plate 130, limiting section, which is positioned bolt 140, to be stopped, is made Locating plate 130 cannot be rotated further.

On above-described embodiment basis, further, the limiting section is two, two limiting sections and the peace Dress portion connects；And two limiting sections are in line setting.

On above-described embodiment basis, limiting section is two, when locating plate 130 follows valve rod 600 to rotate, when 500 rotary valve rod 600 of handle, when making the maximum flow of its ball valve, one of limiting section is contacted with positioning bolt 140, Cause to continue to rotate handle 500；When handle 500, which reversely rotates, closes ball valve, another limiting section and positioning Bolt 140 contacts, and handle 500 cannot continue to rotate；The flow for the outlet for not seeing medium has been achieved in that it, it becomes possible to pass through Handle 500 realizes the closing and unlatching to ball valve.

The pressing plate 400 on many ball valves is fixed on by two bolts on valve body 100 now；Two bolts are arranged on valve rod 600 both sides, the locating plate 130 on valve rod 600, it is only necessary to which a projection portion is turned on or off valve in handle When, locating plate 130 hits two bolts repeatedly, and a bolt plays limitation handle 500 and excessively opens, and a bolt limits hand Handle 500 is excessively closed；Pressing plate 400 is fixed on valve body since two bolts are used in, is hit repeatedly, easy bolt pine It opens, medium is caused to leak from there.

Positioning bolt 140 is fixed on valve body 100 by the scheme in the present embodiment, and it is fixed to be positioned such that piece 130 is hit repeatedly Position bolt 140 will not influence the leakproofness of ball valve.

As shown in Figure 1, on above-described embodiment basis, further, the ball valve body includes valve body 100 and valve deck 200；The cavity flowed through for medium is provided in the ball valve body；Sphere 300 is provided in the cavity；

300 both sides of sphere are respectively arranged with left valve seat 700 and right valve seat 800；The left valve seat 700 is arranged on described Valve body 100, the right valve seat 800 are arranged on the valve deck 200.

On some embodiment bases, ball valve body is made of valve body 100 and valve deck 200；Valve body 100 and valve deck 200 It is bolted together；The cavity of ball valve body passes through valve body 100 and valve deck 200；There are sphere 300, sphere in cavity Have through hole in 300, when through hole and cavity towards it is the same when, medium can with maximum flow by, when through hole towards with Cavity towards it is vertical when, medium cannot pass through out of ball valve.

Lumen gasket 900 is provided between valve body 100 and valve deck 200.

On above-described embodiment basis, further, valve rod 600, and the valve rod are provided on the sphere 300 600 extend to out of described ball valve body outside ball valve body.

As shown in Fig. 2, on above-described embodiment basis, further, it is provided with to install on the valve rod 600 The mounting hole of anti-static device 160, the anti-static device 160 are set along the radial direction of the valve rod；

The anti-static device 160 includes steel ball and spring；The steel ball is contacted with the ball valve moment.

In some embodiments, there is mounting hole on valve rod 600, spring makes steel ball be contacted always with sphere 300, works as sphere When 300 generation electrostatic, electrostatic can be poured out, prevent from gathering on sphere 300 quiet by steel ball, spring and valve rod 600 Electricity causes danger.

Multiple anti-static devices 160 can be set on valve rod 600；Circumferential direction of multiple anti-static devices 160 along valve rod 600 It is uniformly arranged.

As shown in Figure 1, on above-described embodiment basis, further, protrusion is provided in the through hole of the valve body 100 Portion 110,110 lower end of lug boss are provided with thrust washer 150.

In some embodiments, there is through hole in valve body 100, valve rod 600 is arranged in through hole, 600 one end connected ball of valve rod Body 300, the other end are connected outside ball valve body with handle 500；There is lug boss 110 in through hole；600 lower end of valve rod cannot be from It is passed through at the lug boss 110 of through hole, can so prevent from extracting from the external world by valve rod 600.

As shown in Figure 2 and Figure 3, on above-described embodiment basis, further, pressure is disposed on the valve rod 600 Plate 400, pressing sleeve 401 and filler 402, the pressing plate 400 are arranged on 130 lower end of locating plate.

In some embodiments, medium is outwardly leaked along valve rod 600 in order to prevent；Pressure is provided on valve rod 600 Plate 400, pressing sleeve 401 and filler 402, filler 402 are located on lug boss 110, and pressing plate 400 is secured by filler 402 by pressing sleeve 401 Be fixed in through hole, filler 402 can prevent medium from being leaked along valve rod 600.

Pressing sleeve 401 is pressed on filler 402, and pressing plate 400 and pressing sleeve 401 coordinate, and is formed cone match, is pushed down filler 402, And the cooperation that pressing plate 400 and pressing sleeve 401 are formed, in order to enable after the reduction of 402 tightness of filler or filler 402 are lost in, keep filler 402 pretightning force and leakproofness.

As shown in Figure 1, on above-described embodiment basis, further, locking plate is provided on the pressing plate 400, it is described Locking plate is mounted on the positioning bolt 140.

In some embodiments, there is locking plate on pressing plate 400, have perforation on locking plate；Locking plate is sleeved on positioning bolt 140, this Sample, which can play the role of positioning bolt 140, can play guiding.

On above-described embodiment basis, further, card is provided between the locating plate 130 and the handle 500 Spring 120.

In some embodiments, clamp spring 120 is provided on valve rod 600, after locating plate 130 is mounted on valve rod 600, then Clamp spring 120 is mounted on valve rod 600, finally handle 500 is mounted on valve rod 600 again；Clamp spring 120 will can effectively be determined Bit slice 130 is mounted on valve rod 600, and locating plate 130 is prevented to be axially moved, it is ensured that locating plate 130 is installed secured.

Locating plate 130 is provided on ball valve provided by the utility model, when operating ball valve by handle 500, works as ball When valve body is in closing or maximum stream flow, locating plate 130 is contacted with positioning bolt 140, and positioning bolt 140 prevents it Rotation；It so can be ensured that when operation, do not rotate handle 500 excessively, positioning bolt 140 is arranged on valve body 100, ball For valve when Reusability, what handle 500 was hit repeatedly with locating plate 130 is positioning bolt 140, does not interfere with so and is used for Bolt of the fixation clip 400 on valve body 100 prevents that bolt unclamps here, it is ensured that medium does not leak from there.

When in use, by rotating handle 500, rotate valve rod 600, the through hole of the sphere 300 on valve rod 600 with Cavity is towards identical, and ball valve at this time reaches maximum aperture, and medium can pass through ball valve with maximum flow；Valve rod 600 Locating plate 130 is stuck on positioning bolt 140, and valve rod 600 cannot continue to rotate；Handle 500 reversely rotates, when locating plate 130 again Secondary when be stuck on positioning bolt 140, the through hole of ball valve is vertical with cavity at this time, and medium cannot pass through sphere 300；At ball valve In shutoff device.

Positioning bolt 140 blocks locating plate 130, and handle 500 can be positioned piece when ball valve is opened and closed 130 positioning position the position of the opening and closing of ball valve, so when operation, can accurately be turned on or off ball Valve, so need not be by observing the flow by ball valve medium, it becomes possible to determine that ball valve is on or off；Positioning bolt 140 are arranged on valve body 100, and for ball valve when Reusability, what handle 500 was hit repeatedly with locating plate is positioning bolt 140, do not interfere with the bolt on valve body 100 for fixation clip 400 so, prevent here bolt unclamp, it is ensured that medium not from It leaks herein.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from this practicality newly The scope of each embodiment technical solution of type.

Claims (10)

1. a kind of ball valve, which is characterized in that including ball valve body and handle；Valve rod is provided in the ball valve body, it is described Handle is arranged on the valve rod upper end；

Positioning bolt is provided in the ball valve body, and locating plate is provided on the valve rod, the locating plate is located at institute Handle, at its lower end is stated, the positioning bolt is located in the rotational trajectory of the locating plate.

2. ball valve according to claim 1, which is characterized in that the locating plate includes mounting portion and limiting section；The peace Dress portion is mounted on the valve rod, and the limiting section is connected with the mounting portion.

3. ball valve according to claim 2, which is characterized in that the limiting section is two, two limiting sections and institute State mounting portion connection；And two limiting sections are in line setting.

4. ball valve according to claim 1, which is characterized in that the ball valve body includes valve body and valve deck；The ball valve The cavity flowed through for medium is provided in main body；Sphere is provided in the cavity；

The sphere both sides are respectively arranged with left valve seat and right valve seat；The left valve seat is arranged on the valve body, the right valve seat It is arranged on the valve deck.

5. ball valve according to claim 4, which is characterized in that be provided with valve rod on the sphere, and the valve rod is from institute It states in ball valve body and extends to outside ball valve body.

6. ball valve according to claim 5, which is characterized in that be provided with to install anti-static device on the valve rod Mounting hole, the anti-static device along the valve rod radial direction set；

The anti-static device includes steel ball and spring；The steel ball is contacted with the ball valve.

7. ball valve according to claim 5, which is characterized in that be provided with lug boss in the through hole of the valve body；It is described convex It plays subordinate end and is provided with thrust washer.

8. ball valve according to claim 5, which is characterized in that pressing plate, pressing sleeve and filler are disposed on the valve rod, The pressing plate is arranged on the locating plate lower end.

9. ball valve according to claim 8, which is characterized in that locking plate is provided on the pressing plate, the locking plate is mounted on On the positioning bolt.

10. according to claim 1-9 any one of them ball valves, which is characterized in that set between the locating plate and the handle It is equipped with clamp spring.