CN205781003U - A kind of ball valve - Google Patents
A kind of ball valve Download PDFInfo
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- CN205781003U CN205781003U CN201620523753.5U CN201620523753U CN205781003U CN 205781003 U CN205781003 U CN 205781003U CN 201620523753 U CN201620523753 U CN 201620523753U CN 205781003 U CN205781003 U CN 205781003U
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- valve
- sealing
- ball
- pressure cap
- sealing ring
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Abstract
This utility model provides a kind of ball valve, belongs to field of mechanical technique.It solve the problems such as existing sealing property of ball valves is the highest.This ball valve includes valve body, valve rod and the valve ball being arranged in valve body, it is interior and circumferentially fixed with valve ball that valve body is stretched in the inner of valve rod, there is on valve body the connection end one for being connected with pipe fitting and connect end two, valve ball sidepiece is respectively arranged with sealing ring one and sealing ring two relative to the direction connecting end one and connection end two, valve interior wall is positioned at the sealing at sealing ring one with protrusion, connect end one female thread and connect the pressure cap having in the form of a ring, sealing ring one lean towards the one end and the pressure cap that connect end Single port and sealing ring one by the effect tight abutment of pressure cap on sealing and valve ball outer wall.This utility model improves the sealing of ball valve.
Description
Technical field
This utility model belongs to field of mechanical technique, relates to a kind of valve, particularly relates to one
Plant ball valve.
Background technology
Ball valve is the most common valve, in standard GB/T21465-2008 " valve term "
Ball valve is defined as: opening and closing element (spheroid) is driven by valve rod, and revolves around the axis of valve rod
The valve that transhipment is dynamic.The circulation of pipeline internal medium can be realized by the rotation of spheroid or cut
Only；During medium circulation, ball valve is in opening；During the maximum flow that medium circulates, ball
Valve is in fully opened；During medium cut-off circulation, ball valve is in cut-off state.In order to
Ensureing the stability of ball valve duty, the two ends being often positioned at spheroid in valve body are installed
Sealing ring, makes can be formed between valve body and spheroid sealing.
Chinese patent literature data is open propose a kind of ball valve [application number:
CN201220638368.7；Authorization Notice No.: CN202992322U], including valve body, set
The spool being placed in valve body and valve rod, valve rod is inner to be connected with spool circumference, its outer end
Stretching out valve body and be connected with handle, valve body includes that the body with water inlet and screw thread connect
Being connected to the tubular bonnet at body upper water-out end, spool is positioned at body water side
Side and its sidewall lean with the inner of bonnet, the threaded connection place between bonnet and body
Being provided with fluid sealant, bonnet side wall also has a ring-type convex shoulder, this convex shoulder goes out with body
The end tight abutment of water end (W.E.) and there is sealing structure between the two that can form hard sealing.
It is equipped with sealing ring between spool and body medial wall and between spool and bonnet.
Above-mentioned ball valve to having carried out soft seal between body and bonnet and hard having sealed simultaneously,
The sealing effectiveness making ball valve improves a lot, but this by bonnet and body spiral shell
Stricture of vagina connects and the mode that seals is high for the requirement installed, and once fluid sealant is not sealed to
Position is easy to the fluid leakage in generation valve body out.The sealing of sealing ring and valve simultaneously
Cap much relations are installed, once bonnet install during by other factors
Impact occurs installing situation not in place, can make sealing ring can not be pressed on spool from
And affect the sealing effectiveness of ball valve.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for prior art, it is proposed that
A kind of ball valve, the sealing that technical problem is how to improve ball valve to be solved.
The purpose of this utility model can be realized by following technical proposal:
A kind of ball valve, including valve body, valve rod and the valve ball being arranged in valve body, described
The valve body that above-mentioned valve body is interior and circumferentially fixed with above-mentioned valve ball, described is stretched in the inner of valve rod
On have the connection end one for being connected with pipe fitting and connect end two, described valve ball side
Portion is respectively arranged with sealing ring one He relative to the direction of above-mentioned connection end one and connection end two
Sealing ring two, it is characterised in that described valve interior wall is positioned at above-mentioned sealing ring one and has
The sealing of protrusion, described end one female thread that connects is had to connect the pressure cap having in the form of a ring,
Described sealing ring one leans and close towards one end of above-mentioned connection end Single port with pressure cap
Seal one by the effect tight abutment of pressure cap on above-mentioned sealing and valve ball outer wall.
During mounting ball valve, first sealing ring two is installed in valve body, then by valve ball and valve rod
It is also mounted in valve body, in then sealing ring one being installed to valve body and abut in valve body
On sealing, in being then installed to pressure cap connect end one and tighten, so that sealing ring
One leans towards one end and the pressure cap connecting end Single port and sealing ring one is by pressure cap
Effect tight abutment, on sealing and valve ball outer wall, makes to be formed between valve body and valve ball close
Envelope.
Because pressure cap is threaded in connection end one, during pressure cap is tightened in installation
Pressure cap will not be this ensure that by ectocine so that pressure cap is mountable to position
Sealing ring one can be applied thrust and make sealing ring one tight abutment in the sealing of valve body
In portion and valve ball outer wall, make to be formed between valve body and valve ball to seal reliably, improve ball
The sealing of valve.It is one-body molded on valve body for being simultaneously connected with end one, decreases connection
End one and the connection of valve body and sealing, decrease the leak source of ball valve, improve the close of ball valve
Feng Xing.
In above-mentioned a kind of ball valve, described sealing includes the sealing in flat annular
Face one, this sealing surface one is arranged in a mutually vertical manner with the axis of above-mentioned pressure cap, above-mentioned sealing ring
One tight abutment is on described sealing surface one.
Sealing surface one is mutually perpendicular in flat annular and with the axis of pressure cap, it is ensured that in pressure
Sealing ring one reliably tight abutment can be made under the effect of cap thrust at sealing surface one
On, it is ensured that the sealing effectiveness between valve body and valve ball, improve the sealing of ball valve.
In above-mentioned a kind of ball valve, described sealing ring one includes main body one in the form of a ring
And the butting section one that the protrusion having on main body one lateral surface is in the form of a ring, described against
Portion one and above-mentioned sealing surface one just to arrange and on butting section one with sealing surface one just to one
Side is plane, and described sealing ring one is by the effect of above-mentioned pressure cap and makes above-mentioned butting section
One and main body one respectively tight abutment on described sealing surface one and valve ball.
Butting section one and sealing surface one just to side be plane so that sealing ring one with
During sealing tight abutment, butting section one and sealing surface one are the fronts between plane and plane
Against so that the good sealing effect formed between butting section one and sealing surface one, improves ball
The sealing of valve.Main body one is made while butting section one tight abutment is on sealing surface one
Tight abutment is on valve ball, it is ensured that the sealing effectiveness between valve body and valve ball, it is ensured that
The sealing of ball valve.
In above-mentioned a kind of ball valve, described sealing also includes the sealing in the face of cylinder
Face two, the axis of this sealing surface two is vertically arranged with above-mentioned sealing surface one, described main body
On the lateral surface of a place relative with described sealing surface two for the face of cylinder and with sealing surface two-phase
Recline.
Sealing surface two and the setting that reclines of main body one lateral surface, on the one hand add sealing ring
Sealing area between one and valve body, adds the sealing effectiveness between valve body and valve ball,
Improve the sealing of ball valve；On the other hand, have during sealing ring one is installed
The effect of location, makes sealing ring one be mountable to position, decreases the deviation because of position
The situation of the seal failure caused, it is ensured that the sealing effectiveness of ball valve.
In above-mentioned a kind of ball valve, the endoporus of described pressure cap cross section is regular hexagon.
The endoporus of pressure cap cross section is set to regular hexagon so that during installing
Can realize being tightened by pressure cap by special spanner, thus ensure that pressure cap can be applied to
On sealing ring one so that sealing ring one can be with pressure cap towards the one end connecting end Single port
Lean and sealing ring one is by can close at valve body of tight abutment under the active force of pressure cap
In envelope portion and valve ball outer wall, improve the sealing of ball valve.
In above-mentioned a kind of ball valve, described sealing ring one is towards one end of above-mentioned pressure cap
End face on offer stress groove ringwise, described stress groove sets with pressure cap coaxial line
Put.
The setting of stress groove enables sealing ring to be more uniformly stressed, it is ensured that sealing ring one with
The effect of the tight abutment between sealing and valve ball, it is ensured that between valve body and valve ball
Sealing effectiveness.
As another kind of situation, in above-mentioned a kind of ball valve, described sealing includes
Sealing surface three in conical surface shape and the diameter of sealing surface three from above-mentioned pressure cap to the direction of valve ball
Taper into, described sealing ring one just has taper surface to place with sealing surface three, should
Taper surface is tight against on sealing surface three.
Under the effect of pressure cap, the sealing surface three in conical surface shape and the taper surface of sealing ring one
Between sealing effectiveness more preferable, improve the sealing of ball valve.
Compared with prior art, this utility model has the advantage that
By connecting pressure cap at connection end one female thread with valve body molding, and pass through
The effect of pressure cap make sealing ring one simultaneously tight abutment valve body sealing with on valve ball,
Ensure that the sealing effectiveness between valve body and valve ball, improve the sealing of ball valve.Further through
Sealing surface one and the butting section one of mutual tight abutment are set, the sealing mutually reclined is set
Face two and main body one, and stress groove is set on sealing ring one, further ensure valve
Sealing effectiveness between body and valve ball, improves the sealing of ball valve.Again by pressure cap cross section
Endoporus be set to regular hexagon, it is ensured that pressure cap can tighten and be pressed against sealing ring one,
Ensure that the sealing effectiveness between valve body and valve ball.Further through the sealing arranged in conical surface shape
The sealing of ball valve is improved in face three further.
Accompanying drawing explanation
Fig. 1 is the sectional view of this ball valve；
Fig. 2 is the enlarged drawing in Fig. 1 at A.
In figure, 1, valve body；1a, connection end one；1b, connection end two；1c, sealing；
1c1, sealing surface one；1c2, sealing surface two；2, valve rod；3, valve ball；4, sealing ring
One；4a, main body one；4b, butting section one；4c, stress groove；5, sealing ring two；6、
Pressure cap；7, handle.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, a kind of ball valve includes valve body 1, valve rod 2 and is arranged at
Valve ball 3 in valve body 1, it is interior and circumferential with valve ball 3 that valve body 1 is stretched in the inner of valve rod 2
Fixing, the outer end of valve rod 2 passes valve body 1 and is connected by securing member is fixing with handle 7,
It is provided with O RunddichtringO between valve rod 2 and valve body 1 and makes between valve rod 2 and valve body 1
Formed and seal.There is on valve body 1 connection end one 1a for being connected with pipe fitting and connection
Hold two 1b, connect end one 1a and connection end two 1b one-body molded on valve body 1.Connect
Holding a 1a female thread to connect the pressure cap 6 having in the form of a ring, the endoporus of pressure cap 6 cross section is just
Hexagon.Valve ball 3 sidepiece divides relative to the direction connecting end one 1a and connection end two 1b
It is not provided with sealing ring 1 and sealing ring 25, sealing ring 1 and sealing ring 25 to make
Formed between valve body 1 and valve ball 3 and seal.Connect, on the inner surface of end two 1b, there is protrusion
Butting section two, sealing ring 25 abuts against near the one end connecting end two 1b port
In portion two, sealing ring 25 is resisted against valve ball 3 away from the one end connecting end two 1b port
On.
Valve body 1 inwall is positioned at the sealing 1c at sealing ring 1 with protrusion, sealing
1c includes sealing surface one 1c1 in flat annular and the sealing surface in the face of cylinder two 1c2,
Sealing surface one 1c1 is arranged in a mutually vertical manner with the axis of pressure cap 6, the axle of sealing surface two 1c2
Line is vertically arranged with sealing surface one 1c1.Sealing ring 1 includes main body one 4a in the form of a ring
And butting section one 4b that the protrusion having on main body one 4a lateral surface is in the form of a ring, seal
Enclose 1 and be further opened with stress groove 4c ringwise on the end face of one end of pressure cap 6,
Stress groove 4c is coaxially set with pressure cap 6.With sealing surface on the lateral surface of main body one 4a
Two 1c2 locate to recline for the face of cylinder and with sealing surface two 1c2 phase relatively；Butting section one 4b
With sealing surface one 1c1 just to arrange and butting section one 4b is upper and sealing surface one 1c1 just to
Side is plane.Sealing ring 1 is towards one end and the pressure cap 6 connecting end one 1a port
Lean, and sealing ring 1 by the effect of pressure cap 6 and makes butting section one 4b and main body
One 4a tight abutment respectively is on sealing surface one 1c1 and valve ball 3 outer wall.Certainly, seal
Portion 1c can also include the sealing surface three in conical surface shape, and the diameter of sealing surface three is from pressure cap
6 taper into the direction of valve ball 3, with sealing surface three just to place's tool on sealing ring 1
Having taper surface, taper surface is tight against on sealing surface three.
During mounting ball valve, in first sealing ring 25 is installed to valve body 1 and abut against
In portion two, then O RunddichtringO loaded onto by set on valve rod 2, then by valve ball 3 and valve rod 2
It is also mounted in valve body 1, makes valve ball 3 be resisted against on sealing ring 25.Then will seal
Enclose 1 to be installed in valve body 1, and make main body one 4a recline with sealing surface two 1c2, support
Relying part one 4b reclines with sealing surface one 1c1；Then it is installed to pressure cap 6 connect end one
In 1a and tighten so that sealing ring 1 towards connect one end of end one 1a port with
Pressure cap 6 leans, and sealing ring 1 is by its butting section one of effect 4b of pressure cap 6
With main body one 4a tight abutment respectively on valve body 1 sealing 1c and valve ball 3 outer wall,
Make to be formed between valve body 1 and valve ball 3 to seal.Finally handle 7 is connected by securing member
On the outer end of valve rod 2, such ball valve just assembles.
Because pressure cap 6 is threaded in connection end one 1a, tighten pressure cap 6 installing
During so will not protect by ectocine so that pressure cap 6 is mountable to position
Demonstrate,prove pressure cap 6 sealing ring 1 to be applied thrust and make supporting on sealing ring 1
Relying part one 4b and main body one 4a tight abutment respectively is at the sealing 1c of valve body 1 and valve ball
On 3 outer walls, make to be formed between valve body 1 and valve ball 3 to seal reliably, improve ball valve
Sealing.It is one-body molded on valve body 1 for being simultaneously connected with end one 1a, the company of decreasing
Connect end one 1a and the connection of valve body 1 and sealing, decrease the leak source of ball valve, improve ball
The sealing of valve.
Specific embodiment described herein is only for example to this utility model spirit
Explanation.This utility model person of ordinary skill in the field can be to described concrete
Embodiment is made various amendment or supplements or use similar mode to substitute, but not
Spirit of the present utility model can be deviateed or surmount model defined in appended claims
Enclose.
Claims (7)
1. a ball valve, including valve body (1), valve rod (2) be arranged at valve body (1)
In valve ball (3), the inner of described valve rod (2) is stretched in above-mentioned valve body (1) also
Circumferentially fixed with above-mentioned valve ball (3), described valve body (1) has for pipe fitting
The connection end one (1a) being connected and connection end two (1b), described valve ball (3) side
Portion is respectively provided with relative to the direction of above-mentioned connection end one (1a) and connection end two (1b)
There are sealing ring one (4) and sealing ring two (5), it is characterised in that described valve body (1)
Inwall is positioned at above-mentioned sealing ring one (4) place and has the sealing (1c) of protrusion, described
Connect end one (1a) female thread and connect the pressure cap (6) having in the form of a ring, described sealing ring
One (4) leans towards one end of above-mentioned connection end one (1a) port with pressure cap (6)
And sealing ring one (4) by the effect tight abutment of pressure cap (6) at above-mentioned sealing (1c)
With on valve ball (3) outer wall.
Ball valve the most according to claim 1, it is characterised in that described sealing
(1c) include the sealing surface one (1c1) in flat annular, this sealing surface one (1c1) with
The axis of above-mentioned pressure cap (6) is arranged in a mutually vertical manner, and above-mentioned sealing ring one (4) closely supports
Lean against on described sealing surface one (1c1).
Ball valve the most according to claim 2, it is characterised in that described sealing ring
One (4) includes having on main body one (4a) in the form of a ring and main body one (4a) lateral surface
Some protrusions butting section one (4b) in the form of a ring, described butting section one (4b) is with above-mentioned
Setting and butting section one (4b) are just gone up and sealing surface one (1c1) by sealing surface one (1c1)
Just to side be plane, described sealing ring one (4) is by above-mentioned pressure cap (6)
Act on and make above-mentioned butting section one (4b) and main body one (4a) tight abutment respectively in institute
On the sealing surface one (1c1) stated and valve ball (3).
Ball valve the most according to claim 3, it is characterised in that described sealing
(1c) sealing surface two (1c2) in the face of cylinder is also included, this sealing surface two (1c2)
Axis is vertically arranged with above-mentioned sealing surface one (1c1), outside described main body one (4a)
On side place relative with described sealing surface two (1c2) for the face of cylinder and with sealing surface two
(1c2) recline mutually.
Ball valve the most according to claim 1, it is characterised in that described pressure cap (6)
The endoporus of cross section is regular hexagon.
6. according to the arbitrary described ball valve of claim 1-5, it is characterised in that described
Sealing ring one (4) offers ringwise on the end face of one end of above-mentioned pressure cap (6)
Stress groove (4c), described stress groove (4c) is coaxially set with pressure cap (6).
Ball valve the most according to claim 1, it is characterised in that described sealing
(1c) include that the diameter of the sealing surface three in conical surface shape and sealing surface three is from above-mentioned pressure cap (6)
Tapering into the direction of valve ball (3), described sealing ring one (4) is gone up and sealing surface
Three just have taper surface to place, and this taper surface is tight against on sealing surface three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523753.5U CN205781003U (en) | 2016-06-01 | 2016-06-01 | A kind of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523753.5U CN205781003U (en) | 2016-06-01 | 2016-06-01 | A kind of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781003U true CN205781003U (en) | 2016-12-07 |
Family
ID=58135689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523753.5U Active CN205781003U (en) | 2016-06-01 | 2016-06-01 | A kind of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781003U (en) |
-
2016
- 2016-06-01 CN CN201620523753.5U patent/CN205781003U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |