CN205592421U - Leak protection plastic ball valve - Google Patents
Leak protection plastic ball valve Download PDFInfo
- Publication number
- CN205592421U CN205592421U CN201620396308.7U CN201620396308U CN205592421U CN 205592421 U CN205592421 U CN 205592421U CN 201620396308 U CN201620396308 U CN 201620396308U CN 205592421 U CN205592421 U CN 205592421U
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- China
- Prior art keywords
- valve rod
- valve
- core
- handle
- valve body
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Abstract
The utility model discloses a leak protection plastic ball valve, including the valve body, locate the inside ball core of valve body, locating rubber circle, valve rod, handle that links to each other with the valve rod between valve body and the ball core and the handle lid that links to each other with the handle, the lower extreme of ball core is equipped with the prevent excursion structure, and the prevent excursion structure includes planar structure who locates ball core lower extreme and the boss that links to each other with planar structure, the interior bottom surface and the prevent excursion structure phase -match of valve body, still be equipped with O type sealing washer I and O type sealing washer II in the ball valve. The utility model relates to a twice O type sealing washer, can carry high leakproofness can, be equipped with the prevent excursion structure, can stop many times the switch ball valve after, iris out existing wearing and tearing because of rubber and make the skew of ball core and lead to the condition that liquid leaked with ageing, can increase the normal switching frequency of ball valve, the life of extension ball valve.
Description
Technical field
This utility model relates to valve field, refers in particular to a kind of leakproof ball valve made of plastic.
Background technology
The ball valve made of plastic product of existing market supply mostly only has an O RunddichtringO and carries out single sealing, and sealing effectiveness is less reliable, and handle rotates and easily causes the aging of O and abrasion, causes sealing effectiveness to be deteriorated, and fluid leaks.It addition, the many extruding by rubber ring of existing ball valve realize the location of core, after long-time use, the most easily there is abrasion with aging in ball glue, makes to there is gap, the generation skew of core unbalance stress on rubber ring and core sealing contact surface, thus causes fluid leakage situation.Therefore, it is necessary to plastic ball valve structure is designed, improve ball valve sealing effect, improve leakageresistance.
Summary of the invention
For solving the problem that prior art exists, the utility model proposes a kind of good seal performance, leakproof ball valve made of plastic anti-wear, age inhibiting.
The technical scheme that the problem that this utility model exists by solving prior art is used is: a kind of leakproof ball valve made of plastic, the core including valve body, being located at valve inner, the rubber ring being located between valve body with core, valve rod, the handle being connected with valve rod and the handle cover being connected with handle, the lower end of core is provided with anti-offset structure, and anti-offset structure includes the planar structure being located at core lower end and the boss being connected with planar structure；The inner bottom surface of valve body matches with anti-offset structure；The top of valve body is provided with shoulder hole, and valve rod is connected through shoulder hole with core；Shoulder hole includes upper shoulder hole and downstairs hole；Valve rod includes that upper valve rod and lower valve rod, upper valve rod and lower valve rod are connected to form up-small and down-big multidiameter structure, and lower valve rod contacts connection with downstairs hole, and the upper surface of lower valve rod is concordant with the bottom surface of upper shoulder hole；O RunddichtringO I it is provided with between lower valve rod and downstairs hole；Gap is formed between upper valve rod and upper shoulder hole；In the insertion gap, lower end of handle；It is provided with O RunddichtringO II between the lower end of handle and the upper surface of lower valve rod and the bottom surface of upper shoulder hole.
Further, the vertical central axis of boss and the vertical central axis of core are on same straight line.
Further, O RunddichtringO I is integral type structure with valve rod and core；Rubber ring and valve body are integral type structure.
This utility model, relative to prior art, has an advantage in that
(1) this utility model is provided with anti-offset structure, after having stopped multiple switching ball valve, because abrasion and situation that is aging and that make core offset and cause liquid to leak occurs in rubber ring, by increasing capacitance it is possible to increase ball valve normal switch number of times, extends the service life of ball valve；
(2) this utility model is provided with twice O RunddichtringO, and sealing property is more preferable, and simple installation, and O RunddichtringO II occurs elastic deformation to realize outside sealing after being compacted by handle under squeezing action power；O RunddichtringO I and valve rod, valve body and rubber ring are unified into by injection mo(u)lding and are integrated, and cooperatively form inner seal structure.
Accompanying drawing explanation
Fig. 1 is the generalized section of this utility model one embodiment；
Fig. 2 is the structural representation of core in Fig. 1 embodiment.
Detailed description of the invention
In conjunction with accompanying drawing and embodiment, this utility model is described further.
Embodiment:
With reference to Fig. 1 and Fig. 2, the present embodiment includes valve body 1, rubber ring 3, valve rod 4, the handle 5 being connected with valve rod 4 and the handle cover 6 being connected with handle 5 being located at the core 2 within valve body 1, be located between valve body 1 with core 2, the lower end of core 2 is provided with anti-offset structure, and anti-offset structure includes the planar structure 7 being located at core 2 lower end and the boss 8 being connected with planar structure 7；The inner bottom surface of valve body 1 matches with anti-offset structure；
The top of valve body 1 is provided with shoulder hole 9, and valve rod 4 is connected through shoulder hole 9 with core 2；Shoulder hole 9 includes upper shoulder hole and downstairs hole；Valve rod 4 includes that upper valve rod and lower valve rod, upper valve rod and lower valve rod are connected to form up-small and down-big multidiameter structure, and lower valve rod contacts connection with downstairs hole, and the upper surface of lower valve rod is concordant with the bottom surface of upper shoulder hole；O RunddichtringO I 10 it is provided with between lower valve rod and downstairs hole；Gap is formed between upper valve rod and upper shoulder hole；In the insertion gap, lower end of handle 5；It is provided with O RunddichtringO II 11 between the lower end of handle 5 and the upper surface of lower valve rod and the bottom surface of upper shoulder hole.
The vertical central axis of the vertical central axis of boss 8 and core 2 is on same straight line.
O RunddichtringO I 10 is integral type structure with valve rod 4 and core 2；Rubber ring 3 and valve body 1 are integral type structure.
The present embodiment O RunddichtringO II 11 occurs elastic deformation to realize outside sealing after being compacted by handle 5 under squeezing action power；O RunddichtringO I 10 and valve rod 4, valve body 1 and rubber ring 3 are unified into by injection mo(u)lding and are integrated, and cooperatively form inner seal structure.
Rubber ring 3 and anti-offset structure restrict core 2 jointly, make core 2 not offset, and improve sealing effectiveness, increase ball valve normal switch number of times, extend the service life of ball valve.
Principle of the present utility model and embodiment are set forth by specific embodiment used herein, and the explanation of above example is only intended to help to understand method of the present utility model and core concept thereof.The above is only preferred implementation of the present utility model, should be understood that, finiteness due to literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, on the premise of without departing from inventive principle, it is also possible to make some improvement, retouch or change, it is also possible to above-mentioned technical characteristic is combined by rights；These improve retouching, change or combine, or the most improved design by utility model and technical scheme directly apply to other occasion, are regarded as protection domain of the present utility model.
Claims (3)
1. a leakproof ball valve made of plastic, it is characterized in that, the core including valve body, being located at valve inner, the rubber ring being located between valve body with core, valve rod, the handle being connected with valve rod and the handle cover being connected with handle, the lower end of described core is provided with anti-offset structure, and described anti-offset structure includes the planar structure being located at core lower end and the boss being connected with planar structure；The inner bottom surface of described valve body matches with anti-offset structure；
The top of described valve body is provided with shoulder hole, and described valve rod is connected through shoulder hole with core；Described shoulder hole includes upper shoulder hole and downstairs hole；Described valve rod includes that upper valve rod and lower valve rod, described upper valve rod and lower valve rod are connected to form up-small and down-big multidiameter structure, and described lower valve rod contacts connection with downstairs hole, and the upper surface of described lower valve rod is concordant with the bottom surface of upper shoulder hole；O RunddichtringO I it is provided with between described lower valve rod and downstairs hole；Gap is formed between described upper valve rod and upper shoulder hole；In the insertion gap, lower end of described handle；It is provided with O RunddichtringO II between the lower end of described handle and the upper surface of lower valve rod and the bottom surface of upper shoulder hole.
Leakproof ball valve made of plastic the most according to claim 1, it is characterised in that the vertical central axis of described boss and the vertical central axis of core are on same straight line.
Leakproof ball valve made of plastic the most according to claim 1, it is characterised in that described O RunddichtringO I is integral type structure with valve rod and core；Described rubber ring and valve body are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396308.7U CN205592421U (en) | 2016-05-05 | 2016-05-05 | Leak protection plastic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396308.7U CN205592421U (en) | 2016-05-05 | 2016-05-05 | Leak protection plastic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205592421U true CN205592421U (en) | 2016-09-21 |
Family
ID=56932779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620396308.7U Active CN205592421U (en) | 2016-05-05 | 2016-05-05 | Leak protection plastic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205592421U (en) |
-
2016
- 2016-05-05 CN CN201620396308.7U patent/CN205592421U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |