CN201053504Y

CN201053504Y - Plunger valve

Info

Publication number: CN201053504Y
Application number: CNU2007201561988U
Authority: CN
Inventors: 青绍江; 刘淑翻; 青东全; 沈淑青
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-30
Filing date: 2007-06-30
Publication date: 2008-04-30
Anticipated expiration: 2017-06-30

Abstract

The utility model relates to a plunger valve which comprises a valve body, a valve rod, a plunger valve core, a handwheel and a valve seat, wherein, the lower end of the valve rod is connected with the plunger valve core; the valve rod and the plunger valve core are arranged in the valve body; the valve body is connected with the valve seat which is provided with an inlet and an outlet; the valve rod and the plunger valve core are both provided with sealing grooves; an O-shaped sealing ring is arranged in the sealing groove. The seal of the valve rod and the valve body, and the seal of the plunger valve core and the valve seat in the utility model both adopt the O-shaped sealing rings which are double seal with good sealing effect and no leakage.

Description

Plunger valve

One, technical field:

The utility model relates to valve, what be specifically related to is a kind of plunger valve.

Two, background technique:

The needle value of common use generally is to be made of pressure cap, gland, valve rod, piston valve core, valve body, valve seat, the valve rod lower end connects piston valve core, and valve rod, piston valve core are installed in the valve body, and valve body connects valve seat, water intake and water outlet are arranged on the valve seat, make valve stem seal by pressure cap, gland.Because this valve seal is contacted with the metal between the iron is rigid by iron, sealing effect is undesirable, cause mutual damage and seepage easily, often can see in the industrial production, because of the valve rod seepage and the valve of this valve fits badly the run, drip, leak phenomenon that produces, influence managerial skills, cause environmental pollution; And in a single day valve damages seepage can make whole valve keep in repair, the lost of life, and waste is serious.

Three, summary of the invention:

The purpose of this utility model provides a kind of plunger valve, and this plunger valve is used to solve used needle value seepage and the problem that fits badly.

The technological scheme that its technical problem that solves the utility model adopts is: this plunger valve is made up of valve body, valve rod, plungers valve core, handwheel, valve seat, the valve rod lower end connects plungers valve core, valve rod, plungers valve core are installed in the valve body, valve body connects valve seat, import and outlet are arranged on the valve seat, seal groove is all arranged on valve rod and the plungers valve core, the O RunddichtringO is installed in the seal groove.

Import in the such scheme on the valve seat is a level with outlet.

Import in the such scheme on the valve seat is vertical mutually with outlet.

Beneficial effect:

Spool of the present utility model is a plungers valve core, and seal groove is all arranged on valve rod and the plungers valve core, the sealing of valve rod and valve body, and the O RunddichtringO is all adopted in the sealing of plungers valve core and valve seat, and is double seal, and good sealing effect is non-leakage.

Four, description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of valve rod in the utility model;

Fig. 3 is the structural representation of plungers valve core in this practicality;

Fig. 4 is the sectional drawing of valve seat among Fig. 1;

Fig. 5 is the sectional drawing of another kind of valve seat in the utility model.

1 valve body, 2 valve rods, 3 plungers valve cores, 4 handwheels, 5 valve seats, 6 imports, 7 outlets, 8 seal grooves, 9 O RunddichtringOs, 10 plunger slot

Five, embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

As shown in Figure 1, this plunger valve is made up of valve body 1, valve rod 2, plungers valve core 3, handwheel 4, valve seat 5, and valve rod 2 upper ends connect handwheel 4, and the lower end connects plungers valve core 3, and valve rod 2, plungers valve core 3 are installed in the valve body 1; Upper half part of valve body 1 inwall is smooth, and lower half portion has internal thread, and valve body 1 is threaded with valve rod 2, and valve body 1 bottom also has outside thread, and valve body 1 is threaded with valve seat 5; Import 6 and outlet 7 are arranged on the valve seat 5, on valve rod 2 and the plungers valve core 3 seal groove 8 is arranged all, O RunddichtringO 9 is installed in the seal groove 8.

As shown in Figure 2, the fixedly screw thread of handwheel 4 is arranged at the top of valve rod 2, the centre has the three seals groove 8 that three roads can add the O RunddichtringO, and the bottom has and can shift moving outside thread in valve body 1 inward turning, and the lower end design of valve rod 2 has a groove that can be fixed together with plungers valve core 3.

As shown in Figure 3, the design of plungers valve core 3 upper ends has one and valve rod 2 mutual heads in succession, and the centre is for cylindrical body and have a seal groove 8 that can add the O RunddichtringO, and the lower end is designed to cone.

As shown in Figure 4, the two ends, the left and right sides of valve seat 5 are respectively import 6 and outlet 7, import 6 is levels with outlet 7, import 6 and outlet 7 all have internal thread, and there is the circular threaded groove that is connected with valve body 1 upper end of valve seat 5, between this groove and the outlet passage are arranged, circular plunger slot 10 is arranged below this groove, plunger slot 10 is designed to two different concentric circular grooves of diameter, and the passage that is communicated with import 6 is arranged at plunger slot 10 bottoms, and import 6 and outlet 7 lay respectively at the both sides of plunger slot 10.The little groove below in the plunger slot 10 and the cone of plungers valve core 3 cooperatively interact and play seal action, top big circular groove and the O RunddichtringO on the plungers valve core 3 cooperatively interact and play seal action, remaining liquid in the valve closing rear valve base thoroughly can be isolated.

Fig. 5 provides the sectional drawing of another kind of valve seat in the utility model, and as shown in the figure, import on this valve seat 56 is orthogonal with outlet 7, import 6 be positioned at plunger slot 10 below, is communicated with plunger slot 10, export 7 sides that are positioned at plunger slot 10.Other structure and Fig. 4 show identical.

During the utility model work, rotation hand wheel 4, driving plungers valve core 3 by valve rod 2 moves up and down, move up and down the switch of control flow rate size and valve by plungers valve core 3, because valve rod 2 all adopts the O RunddichtringO to seal with the sealing and the plungers valve core 3 of valve body 1 with the sealing of valve seat 5, good sealing effect, non-leakage.

Claims

1. plunger valve, it is characterized in that: it is made up of valve body (1), valve rod (2), plungers valve core (3), handwheel (4), valve seat (5), valve rod (2) lower end connects plungers valve core (3), valve rod (2), plungers valve core (3) are installed in the valve body (1), valve body (1) connects valve seat (5), import (6) and outlet (7) are arranged on the valve seat (5), on valve rod (2) and the plungers valve core (3) seal groove (8) is arranged all, O RunddichtringO (9) is installed in the seal groove (8).

2. plunger valve according to claim 1 is characterized in that: the import (6) on the described valve seat (5) is a level with outlet (7).

3. plunger valve according to claim 2, it is characterized in that: import (6) on the described valve seat (5) and outlet (7) all have internal thread, there is the circular threaded groove that is connected with valve body (1) upper end of valve seat (5), this groove and outlet have passage between (7), circular plunger slot (10) is arranged below this groove, plunger slot (10) is designed to two different concentric circular grooves of diameter, the passage that is communicated with import (6) is arranged at plunger slot (10) bottom, and import (6) and outlet (7) lay respectively at the both sides of plunger slot (10).

4. plunger valve according to claim 1 is characterized in that: the import (6) on the described valve seat (5) is vertical mutually with outlet (7).

5. plunger valve according to claim 4, it is characterized in that: import (6) on the described valve seat (5) and outlet (7) all have internal thread, there is the circular threaded groove that is connected with valve body (1) upper end of valve seat (5), this groove and outlet have passage between (7), circular plunger slot (10) is arranged below this groove, plunger slot (10) is designed to two different concentric circular grooves of diameter, import (6) be positioned at plunger slot (10) below, be communicated with plunger slot (10), outlet (7) is positioned at the side of plunger slot (10).