CN201434107Y

CN201434107Y - Ball valve

Info

Publication number: CN201434107Y
Application number: CN2009203034004U
Authority: CN
Inventors: 李志信
Original assignee: NINGBO DINGLONG BATH EQUIPMENTCO Ltd
Current assignee: DONGGUAN HONGCHANG PLASTIC HARDWARE LIGHTING PRODUCTS CO., LTD.
Priority date: 2009-05-21
Filing date: 2009-05-21
Publication date: 2010-03-31
Anticipated expiration: 2019-05-21

Abstract

The utility model discloses a ball valve, which comprises a shell, a valve ball, a fastening piece and a handle, and is characterized in that: the center of the shell is provided with a big-and-smallhead through hole; a big hole part is provided with a single sided vertical hole; a lining body is arranged in the through hole and the vertical hole; the inside of the lining body is provided with the valve ball; the valve ball is a sphere of which the center is provided with a through hole; the spherical surface vertical to the through hole is provided with a U-shaped groove which is connected with a handle mandrel passing through the vertical hole of the shell through a chain; the fastening piece is a cylinder body in which a liner is arranged; and one end of the cylinder body is in threaded connection with the big hole part of the shell. The ball valve has the advantages that: a valve body and the fastening piece are all provided with a liner, so that drinking water can flow between the valve ball and the liners; and the liners are used for separating the drinking water from a metal material of the valve body (mainly lead metal) to prevent the drinking water from contacting the meal material, and the valve ball is made of stainless steel (has no toxicity self), so the drinking water can be radically prevented from being polluted by the metal material when flowing in the ball valve, the lead content in the drinking water is naturally reduced, and the safety is ensured when the water is drunk.

Description

A kind of ball valve

Technical field:

The utility model relates to a kind of pipeline fittings, refers to a kind of drinking water using ball valve especially.

Technical background:

The employed potable water of the daily life of people in the present city, usually be connected by tap water pipe line, so that transportation is used, and employed tubing system of the system of potable water pipeline meets national drinking water standard, and the switch of a plurality of control flow rate can be set in the potable water pipeline, be referred to as " valve " (Valve),, conveniently carry out maintenance, the replacing of pipeline to control the flow between each section pipeline.General ball valve lies in and is movably equipped with valve ball in the valve seat, feel concerned about in this valve ball and be provided with a penetration hole, and be communicated with, so after the valve ball in the valve seat is rotated with the runner formation of valve seat, utilize between the penetration hole of valve ball and runner and relatively rotate formed screening effect, the current in the able to turn on or off runner.

Yet this valve body is by forging (Forging) or casting worker's methods such as (Sand casting, founding), use copper-zinc alloy (59% red metal, all the other compositions are zinc and lead, and lead tolerance is greater than 1%), so that carry out cutting, and valve ball also is to be made by copper-zinc alloy (chromium plating); Be subjected to the pollution of lead metal during by valve seat as potable water, lead tolerance in the potable water is increased, lead ion enter behind the human body then with water in carbon dioxide reaction generate water-soluble acid ceruse, and can with the calcium generation displacement bleaching in the bone, and cause chronic disease.Moreover more very, because lead metal has very strong affinity to nervous system, easier infringement children are in budding nervous system to children's murder by poisoning for lead metal.For example Chinese patent CN200965076Y relates to a kind of ball valve, comprises a valve seat, a supporting element, a spheroid, second ring liner and at least two links at least; The inner chamber that forms of this valve seat, the through hole of formation at least two these chambers of connection on the outer side relatively; This supporting element places this chamber, has a supporting surface that is circular arc camber; This spheroid is arranged in this chamber and places on this supporting surface the guide holes that this spheroid formation at least two is communicated with; This control base is arranged on this valve seat and with this spheroid and is connected; This link, has a perforation that connects respectively, this each link difference interlocking is on the through hole of this valve seat, the both ends open edge of this second ring liner is pressed respectively between this each link and this spheroid outer side, to limit the position of this supporting element, and being supported the height of this spheroid by this supporting element, the central axis of keeping this each guide hole and this each perforation is positioned on the same level height, circulates in fluid flow between perforation and guide hole with accurate grasp.The ball valve water of this structure still can touch the ball valve part, is not easy to use in potable water.

The model utility content:

One of the utility model purpose aims to provide a kind of ball valve, can not increase the lead tolerance of potable water in the pipeline, and guarantees the Security of drinking water.

For reaching above-mentioned purpose, a kind of ball valve of the utility model: comprise housing, valve ball, fastening piece, handle, it is characterized in that: there is a CONCENTRIC REDUCER through hole at described housing center, big bore portion has a single face upright opening, be provided with inner lining body in through hole and the upright opening, valve ball is installed in the inner lining body, valve ball is the spherical surface body that there is through hole at the center, a U-groove bevel is arranged on the sphere vertical with through hole, and U-groove bevel links with the handle core that passes the housing upright opening; Described fastening piece is a cylindrical shell, and liner is arranged in the cylindrical shell, and an end of cylindrical shell is threaded with the big bore portion of housing.

As preferably, handle ring, handle and handle cap are linked in sequence on the described handle core; Handle ring is threaded with the housing upright opening; Described housing upright opening peripheral hardware handlebar handle spacing preiection; Described handle is provided with protecting jacket outward.

As preferably, the apertura lateralis of described housing and cylindrical shell is total tapped hole with the outer stomidium of inner lining body and liner respectively.

The housing of this ball valve and fastening piece inwall coat and are provided with an inside liner, and ball valve two ends tapped hole is respectively housing and inner lining body, the common screw thread that forms of cylindrical shell and liner.Can avoid the liquid in the ball valve to contact with fastening piece like this with housing.

As preferably, the outer surface at described housing and tapped hole place, cylindrical shell outer end is respectively square body.Be convenient to the installation of ball valve.

As preferably, the threaded connection place of described valve ball through hole two outside spheres, handle core external diameter and housing and cylindrical shell is with seal ring respectively; Described inner lining body, liner and seal ring are respectively the non-toxic high molecular material manufacturing; Described valve ball is the stainless steel material manufacturing.Guarantee that the liquid that can not contact in the ball valve contains the lead metal components and parts.

In view of the above, the beneficial effect that the utility model brings is: because valve body and fastening piece are equipped with inside liner, make the potable water can be in valve ball and liner interflow, and being used for separating potable water, the liner series of strata contact with the metallic material (mainly being lead metal) of valve body, valve ball is again that stainless steel is made (itself is promptly nontoxic), in the time of then can thoroughly avoiding potable water to flow in ball valve, is subjected to the pollution of metallic material, naturally reduced the lead tolerance in the potable water, the safety when guaranteeing to drink water.

Description of drawings

The 1st figure is the three-dimensional exploded view of a kind of ball valve of the utility model.

The 2nd figure is the assembled sectional view of a kind of ball valve of the utility model.

The 3rd figure is the three-dimensional assembled sectional view of a kind of ball valve of the utility model.

The 4th figure is the use schematic representation () of a kind of ball valve of the utility model.

The 5th figure is the use schematic representation (two) of a kind of ball valve of the utility model.

Embodiment:

Below in conjunction with drawings and Examples the utility model is further specified.

Embodiment sees also shown in the 1st～3 figure, the utility model preferred embodiment, and main system comprises following member:

The valve body 1 of pipe shape, its central inside is axially to run through to be provided with big aperture Zhao aperture 11 and big bore portion 12, and coat together with the some of aperture 11 in big bore portion 12 and to be provided with an inner lining body 13, this inner lining body 13 is to adopt nontoxic macromolecule material, as: high density polyethylene (HDPE) (HighDensity Polyethylene, HDPE), polyoxyethylene methylene (Polyoxymethylene, POM) or linear polyethylene (LLDPE) etc., this big bore portion 12 is provided with a seal ring 14 with respect to an end opening place of aperture 11, and sealing circle 14 1 side-lines are provided with the plane of inclination; And the two ends of aperture 11 are respectively equipped with a helical thread portion 15, make aforesaid inner lining body 13 parts be formed with helical thread portion 15, for spiral shell when establishing water pipe 5, the potable water in the water pipe 5 can not contacted by the gap that spiral shell is established the position with metallic material; The vertical friendship of the top of this big bore portion 12 system provided a upright opening 16 in addition, and the outer wall system of upright opening 16 is provided with positioning convex 17 at least.

Valve ball 2, system's activity is located in the big bore portion 12 of valve body 1, the center of this valve ball 2 is provided with a penetration hole 21, its top is provided with a U-groove bevel 22, as shown in FIG., this U-groove bevel 22 is a long strip breach, and system is provided with leader's core 23 in the U-groove bevel 22, handle core 23 1 ends also pass the upright opening 16 at valve body 1 top, make handle core 23 and valve ball 2 form interlocks; This handle core 23 is provided with a seal ring 24 in upright opening 16 in addition.

Handle 3; one end system is connected with these handle core 23 ends; make valve ball 2 and handle 3 form interlock; these handle 3 central authorities are provided with one section zigzag part 31; surface system along zigzag part 31 is provided with a protecting jacket 32; and the set positioning convex 17 of upright opening 16 outer walls is to rotate as block handle 3, uses the purpose that reaches control valve ball 2 rotation angles.

Fastening piece 4, inner wall surface thereof system coats and is provided with a liner 41, liner 41 is to use nontoxic macromolecule material equally, these fastening piece 4 one end outer walls are provided with helical thread portion 42, be located at the helical thread portion 15 of valve body 1 contiguous big bore portion 12 for spiral shell, fastening piece 4 the other end inwalls are provided with helical thread portion 43, are formed with helical thread portion 43 so that establish the part of liner 41; The inwall of these fastening piece 4 one ends is provided with a seal ring 44 in addition, and sealing circle 44 1 side-lines are provided with the plane of inclination, and during this creation assembling, the seal ring 14 of valve body 1 and the seal ring 44 of fastening piece 4 can adhere well to valve ball 2 surfaces, so that current can not leak; Moreover 4 of valve body 1 and fastening pieces are provided with a seal ring 45, and the phenomenon that current leak is avoided producing in the gap when being used for filling up fastening piece 4 spiral shells and being located at valve body 1.

When assembling is used, for another example shown in the 4th, 5 figure, because the water pipe 5 ora terminalis outer walls of potable water pipeline system is provided with helical thread portion 51, be provided with this creation is assembled in 5 in two sections water pipes of potable water pipeline, and the

helical thread portion

15,43 of the ora terminalis of water pipe 5 to be spiral shell be located at valve body 1 and fastening piece 4, because valve body 1 is equipped with inner lining body 13, liner 41 with fastening piece 4; When utilizing handle 3 to switch the current unlatching, be that turning handle handle 3 and interlock valve ball 2 rotates, make the

penetration hole

21 and 11 of the apertures of valve ball 2 produce deflection angle, less than 90 degree, then current can smooth and easyly pass through, only the flow difference of current as deflection angle, equal 90 degree as deflection angle, penetration hole 21 is subjected to covering of valve body 1 inwall, and current then are blocked, and it is the rotation that utilizes the positioning convex 17 block handles 3 outside the valve body 1; Again as shown in FIG., when potable water flows in valve body 1, current only flow in penetration hole 21 and

inner lining body

13,41 of the liners of valve ball 2, and can not contact the metallic material of valve body 1, utilize inner lining body 13, liner 41 that the effect of separating potable water and metallic material is arranged, and the also not leaded metal components of valve ball that stainless steel is made 2 itself is so can avoid potable water to be subjected to the pollution of lead metal.

As mentioned above, shown in the 1st～5 figure, the utility model is when implementing, system is by inner lining body 13, the liner 41 of valve body 1 with fastening piece 4 inwalls, separate current and metallic material, and thoroughly avoid potable water ball valve 2 in, when mobile, to be subjected to the pollution of metallic material, reduce the lead tolerance in the potable water, the safety when guaranteeing to drink water.

Specific embodiment described herein only is that the utility model spirit is illustrated, it is fundamental type of the present utility model, shape for valve body, size, or the pattern of valve ball, or be the transition regimes such as material of inside liner, this paper does not enumerate one by one yet, this should be that the technician of technical field that the present invention belongs to can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, all be normal distortion, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. ball valve: comprise housing, valve ball, fastening piece, handle, it is characterized in that: there is a CONCENTRIC REDUCER through hole at described housing center, big bore portion has a single face upright opening, be provided with inner lining body in through hole and the upright opening, valve ball is installed in the inner lining body, valve ball is the spherical surface body that there is through hole at the center, and a U-groove bevel is arranged on the sphere vertical with through hole, and U-groove bevel links with the handle core that passes the housing upright opening; Described fastening piece is a cylindrical shell, and liner is arranged in the cylindrical shell, and an end of cylindrical shell is threaded with the big bore portion of housing.

2. a kind of ball valve according to claim 1 is characterized in that be linked in sequence on the described handle core handle ring, handle and handle cap.

3. a kind of ball valve according to claim 2 is characterized in that described handle ring is threaded with the housing upright opening.

4. a kind of ball valve according to claim 3 is characterized in that described housing upright opening peripheral hardware handlebar handle spacing preiection.

5. a kind of ball valve according to claim 4 is characterized in that described handle is provided with protecting jacket outward.

6. a kind of ball valve according to claim 1, the apertura lateralis that it is characterized in that described housing and cylindrical shell are total tapped hole with the outer stomidium of inner lining body and liner respectively.

7. according to claim 1 or 6 described a kind of ball valves, it is characterized in that the outer surface at described housing and tapped hole place, cylindrical shell outer end is respectively square body.

8. a kind of ball valve according to claim 1 is characterized in that the threaded connection place of described valve ball through hole two outside spheres, handle core external diameter and housing and cylindrical shell is with seal ring respectively.

9. according to claim 1 or 8 described a kind of ball valves, it is characterized in that described inner lining body, liner and seal ring are respectively the non-toxic high molecular material manufacturing.

10. a kind of ball valve according to claim 1 is characterized in that described valve ball is the stainless steel material manufacturing.