CN201277341Y - Plastic ball valve - Google Patents
Plastic ball valve Download PDFInfo
- Publication number
- CN201277341Y CN201277341Y CNU2008201670744U CN200820167074U CN201277341Y CN 201277341 Y CN201277341 Y CN 201277341Y CN U2008201670744 U CNU2008201670744 U CN U2008201670744U CN 200820167074 U CN200820167074 U CN 200820167074U CN 201277341 Y CN201277341 Y CN 201277341Y
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- valve
- metal tube
- plastic
- valve body
- ball valve
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Abstract
The utility model provides a plastic ball valve, which belongs to the technical field of valves and solves the problem that an existing plastic ball valve can not be connected with pipe fittings again. The plastic ball valve comprises a valve body which is made of plastic materials, a water inlet passage and a water outlet passage are arranged on the valve body, a valve rod is arranged in the valve body, one end of the valve rod is connected with a valve core, a valve core seat which is fixedly connected with the valve body is arranged between the valve body and the valve core, the other end of the valve rod is threaded through the valve core seat and is connected with a handle, the water inlet passage and the water outlet passage of the valve body are fixedly connected with a metal pipe, and one end of the metal pipe is connected with the valve core seat. The plastic ball valve adopts a structure that the water inlet passage and the water outlet passage of the valve body are fixedly connected with the metal pipe, and repeated connection with pipe fittings can be realized. The plastic ball valve has the advantages that the ball valve can be repeatedly disassembled and reconnected, and the service life is long.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of ball valve, particularly a kind of ball valve made of plastic.
Background technique
Ball valve is a kind of important pipe fitting in the pipework.But present ball valve is to adopt copper or stainless steel material to make mostly, has shortcomings such as manufacturing process complexity, seriously polluted, cost of production height.For economical with materials and reducing production costs, people have proposed a lot of technological schemes, and for example, Chinese patent literature discloses the one-time formed ball valve made of plastic of a kind of valve body [China Patent No.: ZL98216763.6; Authorize publication number: CN2347000Y], comprise one-time formed valve body and place the interior valve ball that has valve rod of valve body, be provided with clad in ball surface, the valve ball chamber liner of this clad formation valve body reaches the convex ring shape body corresponding to valve body liquid inlet and outlet hole direction.Self does not have screw connection structure the valve body of this structure, as connecting by heat seal, can't dismantle after the connection and utilize; As by being threaded, the screw thread of plastics quality problems such as insecure, sealing difference will occur connecting through after once connecting when connecting for the second time.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, connects the ball valve made of plastic that re-uses but proposed a kind of repeated removal.
The purpose of this utility model can realize by following technical proposal: a kind of ball valve made of plastic, comprise the valve body of making by plastic materials, have intake tunnel and exhalant canal on the valve body, in valve body, be provided with valve rod, one end of valve rod is connected with spool, between valve body and spool, be provided with the valve core case that is connected on the valve body, the other end of valve rod passes valve core case and is connected with handle, it is characterized in that, the intake tunnel of described valve body and exhalant canal place are fixed with metal tube, and an end of metal tube is connected with valve core case.
Metal tube is arranged on intake tunnel and exhalant canal place, connect by metal tube so ball valve made of plastic just is connected with pipeline, and the screw thread of metallic material is not fragile, has the advantage that can reuse, thereby has improved the working life of ball valve made of plastic.In order to guarantee the sealing that is connected of ball valve made of plastic and pipeline, can after parcel twines unsintered tape or linen thread on the outside thread of pipeline junction, connect again.
In above-mentioned ball valve made of plastic, an end of described metal tube is connected with valve core case, and the other end flushes with the end of intake tunnel and exhalant canal, and the inwall of metal tube has internal thread.
In above-mentioned ball valve made of plastic, an end of described metal tube is connected with valve core case, and the other end passes valve body, and the metal tube part outer wall that passes valve body has screw thread.
In above-mentioned ball valve made of plastic, be provided with the seal ring of making by plastics king material between described valve core case and the spool.Seal ring is positioned on the end outer side wall at valve core through hole two ends and by valve core case and presses, and this structure has improved the sealing between spool and the seal ring greatly.
In above-mentioned ball valve made of plastic, described metal tube one end is resisted against on the valve core case.
In above-mentioned ball valve made of plastic, described metal tube one end stretches in the valve core case and with the plastics spring and leans.In production technology, an end of metal tube is resisted against seal ring on the end outer side wall at valve core through hole two ends, and valve core case is set outside spool again, and an end of an end of spool, valve rod, seal ring, metal tube is wrapped in the valve core case.So metal tube is fixed on the valve core case, this structure has improved the sealing between spool and the seal ring greatly.
In above-mentioned ball valve made of plastic, the metal tube outer surface of described metal tube and valve body connection has groove, and the intake tunnel of valve body and the inwall of exhalant canal have convex body, and groove matches with convex body.Groove is set in order to increase frictional force and the fastness between metal tube and the valve body, when it is rotatably connected between grog ball valve and pipe fitting energetically, avoids metal tube and valve body that loosening break-off takes place.
In above-mentioned ball valve made of plastic, described groove comprises axial distribution at the groove one of metal tube outer surface with circumferentially be distributed in the groove two of metal tube outer surface, and groove one and groove two join.The rotation rotation that the groove one of axial distribution has limited metal tube causes loosening the disengaging, and the axial tension that circumferential grooves distributed two has limited metal tube causes loosening disengaging.
In above-mentioned ball valve made of plastic, described metal tube adopts copper product to make.Copper product avoid the getting rusty generation of phenomenon.
In above-mentioned ball valve made of plastic, described valve body adopts nylon material to make.
Compared with prior art, this ball valve made of plastic adopts the metal tube with internal thread that is connected at intake tunnel and exhalant canal place, when its ball valve made of plastic is connected with pipeline by metal threaded connection, thereby but have repeated removal and connect advantages such as use, long service life again.
Description of drawings
Fig. 1 is the external structure schematic representation of this ball valve made of plastic.
Fig. 2 is the sectional structure schematic representation of this ball valve made of plastic.
Fig. 3 is the another kind of sectional structure schematic representation of this ball valve made of plastic.
Fig. 3 is that the metal tube outer wall of this ball valve made of plastic launches schematic representation.
Among the figure, 1, valve body; 2, spool; 3, valve rod; 4, handle; 5, seal ring; 6, metal tube; 7, valve core case; 8, O RunddichtringO; 9, nut; 10, groove; 11, groove one; 12, groove two; 13, convex body.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, ball valve made of plastic comprises valve body 1, spool 2, valve rod 3, handle 4 and seal ring 5.
Specifically, valve body 1 can adopt material to have nylon, PPR, PVC etc. all to can be made into, have intake tunnel and exhalant canal on the valve body 1, in valve body 1, be provided with spool 2, spool 2 is spherical and has through hole, and when through hole connected intake tunnel and exhalant canal, ball valve was in opening state, when through hole blocked intake tunnel and exhalant canal, ball valve was in closed condition.Also be provided with valve rod 3 in the valve body 1, an end of valve rod 3 is connected with spool 2, and the other end of valve rod 3 passes valve body 1 and is connected with handle 4, and handle 4 is fixed on the end of valve rod 3 by nut 9, and handle with sleeve 4 can drive spool 2 and rotate, and realizes the open and close of ball valve.Be provided with the valve core case 7 that is connected on the valve body 1 between valve body 1 and the spool 2, above-mentioned valve rod 3 also passes valve core case 7, is provided with two groups of O RunddichtringOs 8 between valve core case 7 and valve rod 3, and O RunddichtringO 8 is set on the valve rod 3; Be provided with the seal ring of being made by plastics king material 5 between valve core case 7 and the spool 2, seal ring 5 is positioned on the end outer side wall at spool 2 through hole two ends and by valve core case 7 and presses.
The intake tunnel and the exhalant canal place of above-mentioned valve body 1 are fixed with metal tube 6, one end of metal tube 6 is resisted against on the valve core case 7, the other end flushes with the end of intake tunnel and exhalant canal, the inwall of metal tube 6 has internal thread, metal tube 6 outer surfaces have groove, the intake tunnel of valve body 1 and the inwall of exhalant canal have convex body, and groove matches with convex body.It is copper that above-mentioned metal tube 6 adopts material.
As shown in Figure 4, the groove of metal tube 6 outer surfaces comprises the groove one that axially is evenly distributed on metal tube 6 outer surfaces and circumferentially is evenly distributed on the groove two of metal tube 6 outer surfaces, groove one and groove two join, the rotation rotation that groove one has limited metal tube 6 causes loosening the disengaging, and the axial tension that groove two has limited metal tube 6 causes loosening the disengaging.
Embodiment two
As shown in Figure 3, present embodiment is basic identical with embodiment one structure and principle, and different place is: metal tube 6 one ends stretch in the valve core case 7 and with the plastics spring and lean.In production technology, an end of metal tube 6 is resisted against seal ring 5 on the end outer side wall at spool 2 through hole two ends, and valve core case 7 is set outside spool 2 again, and an end of an end of spool 2, valve rod 3, seal ring 5, metal tube 6 is wrapped in the valve core case 7.So metal tube 6 is fixed on the valve core case 7, this structure has improved the sealing between spool 2 and the seal ring 5 greatly.
Embodiment three
In order to be fit to different condition of contact and connecting means, also has a kind of scheme.Present embodiment is basic identical with embodiment one and embodiment's two structure and principle, different place is: an end of metal tube 6 is connected with valve core case 7, the other end passes valve body 1, have groove 10 with metal tube 6 outer walls of valve body 1 connection, the metal tube 6 part outer walls that pass valve body 1 have screw thread.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used valve body 1 morely; Spool 2; Valve rod 3; Handle 4; Seal ring 5; Metal tube 6; Valve core case 7; O RunddichtringO 8; Nut 9 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1, a kind of ball valve made of plastic, comprise the valve body of making by plastic materials (1), valve body has intake tunnel and exhalant canal on (1), in valve body (1), be provided with valve rod (3), one end of valve rod (3) is connected with spool (2), between valve body (1) and spool (2), be provided with the valve core case (7) that is connected on the valve body (1), the other end of valve rod (3) passes valve core case (7) and is connected with handle (4), it is characterized in that, the intake tunnel of described valve body (1) and exhalant canal place are fixed with metal tube (5), and an end of metal tube (5) is connected with valve core case (7).
2, ball valve made of plastic according to claim 1 is characterized in that, an end of described metal tube (5) is connected with valve core case (7), and the other end flushes with the end of intake tunnel and exhalant canal, and the inwall of metal tube (5) has internal thread.
3, ball valve made of plastic according to claim 1 is characterized in that, an end of described metal tube (5) is connected with valve core case (7), and the other end passes valve body (1), and metal tube (5) the part outer wall that passes valve body (1) has screw thread.
4, according to claim 1 or 2 or 3 described ball valve made of plastic, it is characterized in that, be provided with the seal ring of making by plastics king material (5) between described valve core case (7) and the spool (2).
According to claim 1 or 2 or 3 described ball valve made of plastic, it is characterized in that 5, described metal tube (5) one ends are resisted against on the valve core case (7).
According to claim 1 or 2 or 3 described ball valve made of plastic, it is characterized in that 6, described metal tube (5) one ends stretch in the valve core case (7) and with the plastics spring and lean.
7, according to claim 1 or 2 or 3 described ball valve made of plastic, it is characterized in that, described metal tube (5) has groove (11) with metal tube (5) outer surface of valve body (1) connection, the intake tunnel of valve body (1) and the inwall of exhalant canal have convex body (11), and groove (11) matches with convex body (11).
8, ball valve made of plastic according to claim 7, it is characterized in that, described groove (11) comprises axial distribution at the groove one (11) of metal tube (5) outer surface with circumferentially be distributed in the groove two (11) of metal tube (5) outer surface, and groove one (11) and groove two (11) join.
According to claim 1 or 2 or 3 described ball valve made of plastic, it is characterized in that 9, described metal tube (5) adopts copper product to make.
According to claim 1 or 2 or 3 described ball valve made of plastic, it is characterized in that 10, described valve body (1) adopts nylon material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201670744U CN201277341Y (en) | 2008-10-29 | 2008-10-29 | Plastic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201670744U CN201277341Y (en) | 2008-10-29 | 2008-10-29 | Plastic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277341Y true CN201277341Y (en) | 2009-07-22 |
Family
ID=40894926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201670744U Expired - Fee Related CN201277341Y (en) | 2008-10-29 | 2008-10-29 | Plastic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277341Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017041582A1 (en) * | 2015-09-08 | 2017-03-16 | 福建西河卫浴科技有限公司 | Button coupling flow regulation device |
-
2008
- 2008-10-29 CN CNU2008201670744U patent/CN201277341Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017041582A1 (en) * | 2015-09-08 | 2017-03-16 | 福建西河卫浴科技有限公司 | Button coupling flow regulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20121029 |