A kind of hard sealing angle valve
Technical field
The utility model belongs to valve technology field, relates to a kind of angle valve, particularly a kind of hard sealing angle valve.
Background technique
Angle valve is a staple product in the hot-water heating device.In tap water pipe line, angle valve is located between water pipe and the water tap usually, is used to open or close the water source inflow of water tap.Simultaneously, when damaging appears in water tap, can close angle valve, so that the repairing of water tap or replacing.
For example, the structure-improved of the disclosed a kind of angle valve of Chinese patent literature [publication number: CN2876467], form by valve body, spool and rotation hand wheel three parts, wherein valve body is provided with water intake, water outlet and the spool mounting hole that is connected with body cavity, described spool is positioned at body cavity, the spool mounting hole is passed in its rear end and handwheel is fixed together, the spool head is a spherical fuse, and described valve body water outlet and joint between the body cavity are provided with a taper platform seal ring that holds mutually with the spherical fuse of spool.During work mainly the outer edge surface by the spherical fuse of spool and valve body water outlet go up the taper platform seal ring that is provided with closely connectedly realize closing of angle valve.The shortcoming of the angle valve of this structure is that seal ring being easy to generate leakage under the situation of High Temperature High Pressure or through the space occurring after the long wear and aging, causes the sealing of angle valve well not guaranteed, has directly influenced the working life of angle valve; Seal ring damages the back replacing in addition and maintenance is also very inconvenient.Also there is similar problem in existing other technologies scheme.
Summary of the invention
The purpose of this utility model is at existing existing the problems referred to above, and the hard sealing angle valve of a kind of simple in structure, good seal performance, long service life is provided.
The purpose of this utility model can realize by following technical proposal: a kind of hard sealing angle valve, comprise spool, valve rod, handle and have water intake and the valve body of water outlet, on the described valve body bonnet is installed, described valve rod passes bonnet and its inner is connected with spool, the outer end of valve rod is stretched out valve body and is connected with handle, it is characterized in that, described spool end has and is cone shape sealing surface, have the sealing seat that matches with the sealing face in valve body, the sealing surface of above-mentioned spool can directly form hard sealing with the sealing seat when angle valve is in closed condition.
This hard sealing angle valve is to be used to open or close a kind of device that the water source of water tap flows into.Wherein the water inlet on the intake pipe of pipeline and the valve body, the outlet pipe of pipeline is connected the water outlet place of valve body.Handle can drive the rotation of valve rod, thereby controls moving up and down of spool.This hard sealing angle valve mainly is by being cone shape sealing surface directly and the match opening and closing of incompatible controlled angle valve of sealing seat, making that like this angle valve sealing is well guaranteed.
Move downward when handle with sleeve drives spool, make sealing surface and sealing seat directly form hard sealing, current can not outwards flow out by water outlet like this, and promptly this angle valve is in closed condition; Move upward when handle with sleeve drives spool, when making sealing surface depart from sealing seat, current just can outwards flow out by water outlet, and promptly angle valve is on state.Wherein to depart from the distance of sealing seat far away more for sealing surface, and it is big more that angle valve is also just opened.
In above-mentioned hard sealing angle valve, the inner and the spool of described valve rod constitute kinematic pair by screw-thread fit, and the sealing surface of above-mentioned spool is that line contacts with sealing seat when angle valve is in closed condition.Wherein valve rod and spool drive moving up and down of spool by the convenient valve rod of realizing of screw-thread fit, also make things convenient for the replacing and the maintenance of spool in addition.Sealing surface is that line contacts with sealing seat when angle valve is in closed condition, has guaranteed the sealability of whole angle valve.
In above-mentioned hard sealing angle valve, the water inlet of described valve body and water outlet place take over by be threaded into water adapter and water outlet respectively, and the water outlet place that is connected valve body by a set screw nut is taken in described water outlet.Be that for convenience valve body is connected with outlet pipe with intake pipe in the pipeline like this.
In above-mentioned hard sealing angle valve, the connection part between described water outlet adapter and the valve body is provided with the seal ring one that rubber material is made.
In above-mentioned hard sealing angle valve, the connection part between described water inlet adapter and the valve body is provided with the Sealing that metallic material is made.
Wherein seal ring one and Sealing have strengthened the sealability of angle valve.
In above-mentioned hard sealing angle valve, described handle is provided with gland, and above-mentioned valve rod and handle are to link together by this gland.This gland is installed in the top of handle by screw-thread fit, makes things convenient for the installation and removal of part like this.
Hard sealing angle valve kind above-mentioned is equipped with setscrew nut on the described bonnet, and above-mentioned valve rod is to be fixed in the bonnet by this setscrew nut.
Compared with prior art, the advantage of this hard sealing angle valve is: because the sealing surface of the spool that the employing metal is made and sealing seat directly form hard sealing, adopt seal ring and valve seat to form sealing with common angle valve and compare, have good seal performance prevent the space be easy to generate leakages, wear-resisting property by force, advantage such as long service life.
Description of drawings
Fig. 1 is the perspective view of this hard sealing angle valve.
Fig. 2 is the sectional structure schematic representation of this hard sealing angle valve.
Among the figure, 1, valve body; 2, bonnet; 3, valve rod; 4, spool; 4a, sealing surface; 5, handle; 6, sealing seat; 7, water inlet is taken over; 8, water outlet is taken over; 9, seal ring one; 10, seal ring two; 11, Sealing; 12, gland; 13, setscrew nut; 14, set screw nut.
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.
This hard sealing angle valve is that the water source that is used to open or close water tap flows into.As depicted in figs. 1 and 2, this hard sealing angle valve comprises component such as spool 4, valve rod 3, handle 5 and valve body 1.
Specifically, have water intake and water outlet on the valve body 1, water inlet and water outlet place at valve body 1 take over 8 by be threaded into water adapter 7 and water outlet respectively, wherein water outlet adapter 8 is connected the water outlet place of valve body 1 by set screw nut 14, water inlet is taken over 7 and is taken over 8 at right angles with water outlet, is connected on the tap water pipe line respectively.Bonnet 2 is installed on valve body 1, setscrew nut 13 is installed on the bonnet 2, above-mentioned valve rod 3 is to be fixed in the bonnet 2 by this setscrew nut 13, and valve rod 3 passes bonnet 2 and its inner is connected with spool 4, and the outer end of valve rod 3 is stretched out valve body 1 and is connected with handle 5.Wherein the inner of valve rod 3 and spool 4 constitute kinematic pair by screw-thread fit, make things convenient for valve rod 3 to drive moving up and down of spool 4 like this.Handle 5 is provided with gland 12, and above-mentioned valve rod 3 is to link together by this gland 12 with handle 5.
This hard sealing angle valve mainly is by being cone shape sealing surface 4a directly and the match opening and closing of incompatible controlled angle valve of sealing seat 6.Therefore spool 4 ends have and are cone shape sealing surface 4a, in valve body 1, has the sealing seat 6 that matches with sealing face 4a, the sealing surface 4a of above-mentioned spool 4 can directly form hard sealing with sealing seat 6 when angle valve is in closed condition, thereby omitted because of the variety of issue that seal ring and sealing seat 6 formation sealings are brought is set in spool 4 ends, made that like this angle valve sealing is well guaranteed.
In order to have strengthened the sealability of angle valve, the connection part between water outlet adapter 8 and valve body 1 is provided with the O RunddichtringO 1 that rubber material is made, and the connection part between water inlet adapter 7 and valve body 1 is provided with the Sealing 11 that metallic material is made.Between the middle part of valve rod 3 and valve body 1, be provided with O RunddichtringO 2 10 in addition, leak from the valve rod 3 and the contacting point of valve body 1 to prevent water stream.
When this angle valve uses, when thereby handle with sleeve 5 drive valve rods 3 make spool 4 move downward the appropriate location, make sealing surface 4a can be fully and sealing seat 6 directly form metal hard-sealings, current can not outwards flow out by water outlet like this, angle valve is in closed condition at this moment; When thereby handle with sleeve 5 drive valve rods 3 make spool 4 move upward to another appropriate location, sealing surface 4a can be in when departing from sealing seat 6 fully, current just can outwards flow out by water outlet, and promptly angle valve is in opening state.The distance that certain sealing surface 4a departs from sealing seat 6 is far away more, and angle valve is also also just big more with regard to opening degree.
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 terms such as valve body 1, bonnet 2, valve rod 3, spool 4, sealing surface 4a, handle 5, sealing seat 6, water inlet adapter 7, water outlet adapter 8, seal ring 1, seal ring 2 10, Sealing 11, gland 12, setscrew nut 13, set screw nut 14 morely, 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.