CN201363452Y - Combined plastic ball valve - Google Patents
Combined plastic ball valve Download PDFInfo
- Publication number
- CN201363452Y CN201363452Y CNU2008200640826U CN200820064082U CN201363452Y CN 201363452 Y CN201363452 Y CN 201363452Y CN U2008200640826 U CNU2008200640826 U CN U2008200640826U CN 200820064082 U CN200820064082 U CN 200820064082U CN 201363452 Y CN201363452 Y CN 201363452Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- ball
- ball valve
- groove
- end cap
- 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
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Abstract
The utility model relates to a combined plastic ball valve comprising a ball valve seat, a valve seat end cover, a ball core, a ball rod, a sealing ring, a handle and a handle cover, wherein a dovetail groove is arranged on the top surface of the ball core; the lower end of the ball rod is provided with a dovetail key; the ball core and the ball rod are connected through the respective dovetail groove and the dovetail key; internal threads and an internal ring groove are arranged on the surface of a port internal hole of the ball valve seat; the external circular surface of the valve seat end cover is provided with external threads by injection molding and a concave ring groove; the ball valve seat and the ball seat end cover are connected together through threads; in addition, a limit ring is arranged between the internal ring groove on the ball valve seat and the concave ring groove on the valve seat end cover by injection molding. The combined plastic ball valve has simple structure, easy fabrication, attractive shape, free and flexible operation and better sealing effect of achieving no running and leakage of a drop of water.
Description
Affiliated technical field
The utility model belongs to valve field, specifically relates to a kind of ball valve made of plastic.
Background technique
Because plastics have non-corrosive and lightweight characteristics, it is widely used for making various valves already.Ball valve made of plastic is exactly a kind of in these Plastic valves.The ball core and the club of existing ball valve made of plastic generally are injection moulded into one.Because plastic cool aftershrinkage distortion is big, the mistake circularity of its ball core is bigger.Behind the quadric injection mould ball valve seat, tend to cause the rotation of sphere between the inboard both ends of the surface of ball valve seat of ball core tight like this, make the opening and closing of ball valve be difficult to operation by Ka Detai.After needing right use along with a period of time, the ball core can become more smooth through the friction of the inboard both ends of the surface of ball valve seat, the opening and closing of its ball valve also can be more flexibly, but also occur gap, the leakage that can produce ball valve between the inboard both ends of the surface of ball core and ball valve seat thereupon.Being connected between the valve seat end cap of existing in addition ball valve made of plastic and the ball valve seat is being threaded merely of adopting mostly, because the elasticity of plastic materials is big, distortion is big, so usually can produce leakage between valve seat end cap and ball valve seat.Also there is the mode that adopts sweat soldering being connected between the valve seat end cap of ball valve made of plastic and the ball valve seat, though its sealing is better, on sweat soldering face, can produce some and fly skin, influence very much the image appearance of product, handle so must carry out secondary operations, more bothersome.Therefore the structure of existing ball valve made of plastic presses for and improves.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned ` deficiency of the prior art, and provide a kind of ball core and ball valve seat good to neutrality, its ball core can move can be from motive sealing, and can guarantee the plastics combined type ball valve that never leaks that is connected between valve seat end cap and the ball valve seat.
The purpose of this utility model reaches by following technical measures: this plastics combined type ball valve includes ball valve seat, valve seat end cap, ball core, club, seal ring, handle and handle cover.One of its innovation is to have dovetail groove on the top of ball core, is provided with dovetail key in the lower end of club.Be to be slidingly connected between ball core and the club by their dovetail groove and dovetail keies separately.
Two of its innovation is that the port inner hole surface of at first ball valve seat is provided with internal thread, and has inner groove near the port on this inner hole surface; Next is to be injected with outside thread on the periphery of valve seat end cap, and also has concave ring groove on this periphery; Also between the concave ring groove on inner groove on the ball valve seat and the valve seat end cap, be injected with stop ring at last.
The port endoporus of ball valve seat also can be smooth inner hole surface in the utility model, and has inner groove near the port on this inner hole surface.And the outer round surface of valve seat end cap is smooth cylinder, and has concave ring groove on this cylinder.Adopt to be inserted between ball valve seat and the valve seat end cap to be connected, connect the back and between the concave ring groove on inner groove on the ball valve seat and the valve seat end cap, is injected with stop ring.Also on valve seat end cap cylindrical in the inner part, be equipped with seal ring in addition.
The utility model beneficial effect compared to existing technology be this valve arrangement simple, make easily, beautiful shape, flexible operation freely, its ball core good to neutrality, can do moving freely on the substantially horizontal along the dovetail key on the club, the hydraulic pressure of feed-water end can make ball valve tightly touch the seal ring of waterexit end like this, and its sealing effect is excellent.Being connected between the valve seat end cap of this valve and the ball valve seat can guarantee watertight simultaneously.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural drawing.
Fig. 2 is the utility model embodiment 2 a structural drawing.
Embodiment
The utility model is described further below in conjunction with drawings and Examples: this plastics combined type ball valve is made up of ball valve seat 2, valve seat end cap 4, ball core 6, club 8, seal ring 7, handle 1 and handle cover 10.Wherein on the end face of ball core 6, have dovetail groove.And be provided with dovetail key in the lower end of club 8.Be to couple together by their dovetail groove and dovetail keies separately between ball core 6 and the club 8, its ball core 6 can carry out the slip of substantially horizontal along the dovetail key on the club.The endoporus of the ball valve seat port of this ball valve made of plastic has internal thread, and is also having inner groove near the port; Simultaneously on the cylindrical of valve seat end cap 4, have outside thread, and have concave ring groove.Between its ball valve seat 2 and the valve seat end cap 4 is by outside being threaded, also between the concave ring groove on inner groove on the ball valve seat 2 and the valve seat end cap 4, also be injected with stop ring 3, do not produce leakage to guarantee being threaded between ball valve seat 2 and the valve seat end cap 4 by plastics double injection molding technology.The handle 1 of this ball valve made of plastic is that the bonding and club 8 by handle cover 10 links together.On the cylindrical of club 8, be provided with O-ring seal 5 in addition.More than be exactly embodiment 1 of the present utility model.
The utility model embodiment 2 structure is substantially the same manner as Example 1, and just ball valve seat 2 port endoporus are not threaded, and only keep smooth cylinder, and is having inner groove near the port.The outer fenestra of same valve seat end cap 4 is not threaded, only keeps smooth cylinder, and also has concave ring groove.Between its ball valve seat 2 and the valve seat end cap 4 by outside being connected movingly of sleeve type, also between the concave ring groove on inner groove on the ball valve seat 2 and the valve seat end cap 4 also by stop ring 3 in the injection moulding of plastics double injection molding technology, do not produce leakage to guarantee being connected between ball valve seat 2 and the valve seat end cap 4.Also on valve seat end cap 4 cylindrical in the inner part, be equipped with seal ring 9 in addition.Remaining structure and embodiment 1 are identical.
Claims (2)
1. a plastics combined type ball valve includes ball valve seat (2), valve seat end cap (4), ball core (6), club (8), seal ring (7), handle (1) and handle cover (10), it is characterized in that on the end face of ball core (6), having dovetail groove, lower end at club (8) is provided with dovetail key, be to be slidingly connected between ball core (6) and the club (8) by their dovetail groove and dovetail keies separately, and the port inner hole surface of ball valve seat (2) is provided with internal thread, and have inner groove near the port in this inner hole surface, on the periphery of valve seat end cap (4), be injected with outside thread, and on this periphery, have concave ring groove, also between the concave ring groove on inner groove on the ball valve seat (2) and the valve seat end cap (4), be injected with stop ring (3) in addition.
2. a plastics combined type ball valve includes ball valve seat (2), valve seat end cap (4), ball core (6), club (8), seal ring (7), handle (1) and handle cover (10), it is characterized in that on the end face of ball core (6), having dovetail groove, lower end at club (8) is provided with dovetail key, be to be slidingly connected between ball core (6) and the club (8) by their dovetail groove and dovetail keies separately, and the port endoporus of ball valve seat (2) is smooth inner hole surface, and on this inner hole surface, have inner groove near the port, the outer round surface of valve seat end cap (4) is smooth cylinder, and on this cylinder, have concave ring groove, adopt to be inserted between ball valve seat (2) and the valve seat end cap (4) and be connected, connect the back and between the concave ring groove on inner groove on the ball valve seat (2) and the valve seat end cap (4), be injected with stop ring (3), also on valve seat end cap (4) cylindrical in the inner part, be equipped with seal ring (9) in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200640826U CN201363452Y (en) | 2008-07-03 | 2008-07-03 | Combined plastic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200640826U CN201363452Y (en) | 2008-07-03 | 2008-07-03 | Combined plastic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363452Y true CN201363452Y (en) | 2009-12-16 |
Family
ID=41474117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200640826U Expired - Fee Related CN201363452Y (en) | 2008-07-03 | 2008-07-03 | Combined plastic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363452Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948762A (en) * | 2015-06-19 | 2015-09-30 | 何祺晃 | Self-locking ball valve faucet |
| US10359134B2 (en) | 2015-08-26 | 2019-07-23 | Swagelok Company | Component retaining structure for conduit fitting |
| US10648595B2 (en) | 2016-02-04 | 2020-05-12 | Swagelok Company | Component retaining structure for conduit fitting |
-
2008
- 2008-07-03 CN CNU2008200640826U patent/CN201363452Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948762A (en) * | 2015-06-19 | 2015-09-30 | 何祺晃 | Self-locking ball valve faucet |
| US10359134B2 (en) | 2015-08-26 | 2019-07-23 | Swagelok Company | Component retaining structure for conduit fitting |
| US10648595B2 (en) | 2016-02-04 | 2020-05-12 | Swagelok Company | Component retaining structure for conduit fitting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20160703 |