CN2929368Y

CN2929368Y - Valve

Info

Publication number: CN2929368Y
Application number: CN 200620074469
Authority: CN
Inventors: 金哲龙
Original assignee: Individual
Current assignee: JIANGSU LONGLISHEN FINE TECHNOLOGY Co Ltd
Priority date: 2006-06-23
Filing date: 2006-06-23
Publication date: 2007-08-01
Anticipated expiration: 2016-06-23

Abstract

A valve comprises a valve body, a valve stem, a valve core. A second channel connected to the inlet channel is provided on the valve body, a third channel connected to the outlet channel is further provided on the valve body, a first channel is provided on the valve stem, a valve cavity is formed between the inner wall of the cavity of the valve body and the upper end face of the valve core. The valve core has two operating mode, and the second channel is connected with the valve cavity through the first channel when the valve is in the first operating mode, and the third channel is connected with the valve cavity through the first channel when the valve core is in the second operating mode. The valve core is provided with a hydraulic acting force area, and the hydraulic acting force has a first forced face which makes the valve core tend into the second operating mode from the first operating mode, the valve can be opened or closed by depending on self-action of water flow. The manner of open and close does not need manpower to overcome pressure of fluid.

Description

Valve

Technical field

The utility model relates to a kind of valve.

Background technique

Valve is the parts of often using in a kind of daily life and the industrial production.Traditional valve all is to remove the regulating valve switch with hand, in the process of regulating valve switch, need manpower to remove to overcome the pressure of fluid, usually need could open for large-scale valve by instruments such as spanners, artificial open and close valve difficulty, labor intensity is big, and these all make when valve uses very inconvenient.

Model utility number is a kind of labour-saving manually-operated gate of " CN02253864.X ", adopts rubber sleeve to be enclosed within the outside of valve rod base, and the flange of rubber sleeve does sealing between valve gap and valve body, makes this valve seal better, and is laborsaving again.

Model utility number discloses a kind of side Open valve for " CN200420003945.0 ", and this valve is obliquely installed in the oblique chamber of valve body down by the valve stem part that outer leading screw and interior leading screw are constituted and makes that its unlatching is more flexible, and is time saving and energy saving.

Though these model utilitys are in the problem that has partly solved the valve manpower that needs are very big when opening, its basic dependence overcomes this mode of the opened by pressure valve of fluid and does not still avoid.

Summary of the invention

The purpose of this utility model provides a kind of valve, and described valve is as long as use very little power just to open or close.

The utility model can be implemented by the following technical programs:

A kind of valve, comprise the valve body that is provided with cavity, be slidably disposed on spool in the described valve body, be arranged on the valve rod on the described valve body rotationally, offer the intake tunnel and the exhalant canal that communicate on the described valve body respectively, described spool has two working staties, first working state is a closed condition, spool is blocked by spool between described intake tunnel and the described exhalant canal between described intake tunnel and described exhalant canal at this moment; Second working state is an opening state, this moment, described intake tunnel was connected with described exhalant canal, have the second channel that communicates with described intake tunnel on the described valve body, also have the third channel that communicates with described exhalant canal on the described valve body, have first passage on the described valve rod, form valve pocket between the cavity inner wall of described valve body and the upper-end surface of described spool, when described spool was in first working state, described second channel communicated with described valve pocket by first passage; When described spool was in second working state, described third channel communicated with described valve pocket by described first passage; Have hydraulic action power district on the described spool, this hydraulic action power district has makes spool be tending towards entering from first working state first stress surface of second working state.

Described spool also has the 3rd working state, and this moment, described second channel all communicated with described first passage with described third channel, and described intake tunnel is connected with described exhalant canal.

The upper end of described valve body has groove, and described groove communicates with described valve pocket.

Described hydraulic action power district also has makes spool be tending towards entering from second working state second stress surface of first working state, described first stress surface along the area of contour of the movement direction of described spool greater than the area of contour of described second stress surface along described spool movement direction.

Compared with the prior art the utility model has following advantage: described valve relies on current that first stress surface in the spool hydraulic action district active force that makes progress is overcome the spool that the pressure of water in the gravity of spool self and the valve pocket backs down between intake tunnel and exhalant canal and comes Open valve, by second channel and the first passage water filling in valve pocket that is connected, rely on the pressure of water in the valve pocket to make spool block intake tunnel and the exhalant canal throttle down that communicates.This open and close mode does not need manpower to remove to overcome the pressure of fluid, and the working state that needs only the very little power conversion valve rod of use just can the open and close valve.Need just can not open for large-scale valve yet, overcome artificial open and close valve difficulty in the past, the drawback that labor intensity is big by instruments such as spanners.

Description of drawings

Sectional view when accompanying drawing 1 is in first working state for the valve rod of valve of the present utility model;

Accompanying drawing 2 is the zoomed-in view of accompanying drawing 1 along the A-A direction;

Sectional view when accompanying drawing 3 is in second working state for the valve rod of valve of the present utility model;

Accompanying drawing 4 is the zoomed-in view of accompanying drawing 3 along the B-B direction;

Sectional view when accompanying drawing 5 is in the 3rd working state for the valve rod of valve of the present utility model;

Accompanying drawing 6 is the zoomed-in view of accompanying drawing 5 along the C-C direction;

Wherein: 1, valve body; 2, spool; 3, hole; 4, valve rod; 5, intake tunnel; 6, exhalant canal; 8, second channel; 9, third channel; 10, first passage; 11, valve pocket; 12, groove; 13, hydraulic action power district; 14, first stress surface; 15, second stress surface.

Embodiment

As Fig. 1, Fig. 3, valve shown in Figure 5, comprise the valve body 1 that is provided with cavity, be slidably disposed on the spool 2 in the described valve body 1, be arranged on the valve rod 4 on the described valve body 1 rotationally, offer porose 3 on the upper wall of described valve body 1, described valve rod 4 rotating being inserted in the described hole 3, offer the intake tunnel 5 and the exhalant canal 6 that communicate on the described valve body 1 respectively, have the second channel 8 that communicates with described intake tunnel 5 on the described valve body 1, also have the third channel 9 that communicates with described exhalant canal 6 on the described valve body 1, have first passage 10 on the described valve rod 4, form valve pocket 11 between the upper-end surface of the cavity inner wall of described valve body 1 and described spool 2, the upper end of described valve body 2 has groove 12, and described groove 12 communicates with described valve pocket 11.

Has hydraulic action power district 13 on the described spool 2, this hydraulic action power district 13 has makes spool 2 be tending towards entering from first working state first stress surface 14 of second working state, described hydraulic action power district 13 also has makes spool 2 be tending towards entering from second working state second stress surface 15 of first working state, described first stress surface 14 along the area of contour of the movement direction of described spool 2 greater than the area of contour of described second stress surface 15 along described spool 2 movement directions.

Described spool 2 has three working staties:

Valve as shown in Figure 1 and Figure 2, this moment described valve to be positioned at first working state be closed condition, this moment, described second channel 8 communicated with described valve pocket 11 by first passage 10, since the upper semisection pipe of described second channel 8 be curved shape and not with a lower semisection Guan Zaiyi plane in, so dissect less than, therefore dot the upper semisection pipe.The intake tunnel 5 of water by communicating, second channel 8, first passage 10 is filled with described valve pocket 11 and groove 12, the active force that described spool is subjected to for 2 this moments comprises the downward gravity of described spool 2 self, the downward pressure that water produces spool 2 in valve pocket 11 and the groove 12, current upward pressure in the intake tunnel 5 that pressure in the intake tunnel 5 that described second stress surface 15 is subjected under the current direction and described first stress surface 14 are subjected to, the downward total pressure that wherein said spool 2 is subjected to is greater than the total pressure that makes progress, spool 2 is blocked by spool 2 between described intake tunnel 5 and the described exhalant canal 6 between described intake tunnel 5 and described exhalant canal 6;

Valve as shown in Figure 3, Figure 4, it is opening state that the valve of this moment is in second working state, this moment, described third channel 9 communicated with described valve pocket 11 by described first passage 10, since the upper semisection pipe of described third channel 9 be curved shape and not with a lower semisection Guan Zaiyi plane in, so dissect less than, therefore dot the upper semisection pipe.The active force that described spool is subjected to for 2 this moments comprises the downward gravity of described spool 2 self, the down pressure that water produces spool 2 in valve pocket 11 and the groove 12, current upward pressure in the intake tunnel 5 that pressure in the intake tunnel 5 that described second stress surface 15 is subjected under the current direction and described first stress surface 14 are subjected to, with described valve pocket 11 communicate by described first passage 10 owing to described third channel 9 this moment, water in the valve pocket 11 will blow back in the exhalant canal 6 along the passage of this connection and go (passage of this moment is equivalent to syphon tube), because the water in the valve pocket 11 tails off, water also will reduce the pressure that spool 2 produces, when pressure is reduced to downward total pressure that described spool 2 is subjected to less than the total pressure that makes progress, spool 2 will move up, water in the valve pocket 11 continues along first passage 10, third channel 9, enter in the exhalant canal 6, described intake tunnel 5 is connected with described exhalant canal 6.

As Fig. 5, valve shown in Figure 6, this moment, described spool 2 was in the 3rd working state, this moment, described second channel 8 all communicated with described first passage 10 with described third channel 9, same reason, the shown second channel 8 and the upper semisection of third channel 9 all dissect less than, therefore dot, this moment, whole second channel 8 was unimpeded passages, and third channel 9 also is like this.Described intake tunnel 5 is connected with described exhalant canal 6; Be generally the position when regulating water flow as required when being in this position, when valve rod 4 was in state, the flow of water was between maximum and zero in the valve body 1.

Claims

1, a kind of valve, comprise the valve body (1) that is provided with cavity, be slidably disposed on the spool (2) in the described valve body (1), be arranged on the valve rod (4) on the described valve body (1) rotationally, offer the intake tunnel (5) and the exhalant canal (6) that communicate on the described valve body (1) respectively, described spool (2) has two working staties, first working state is a closed condition, spool this moment (2) is positioned between described intake tunnel (5) and the described exhalant canal (6), is blocked by spool (2) between described intake tunnel (5) and the described exhalant canal (6); Second working state is an opening state, described intake tunnel this moment (5) is connected with described exhalant canal (6), it is characterized in that: have the second channel (8) that communicates with described intake tunnel (5) on the described valve body (1), also have the third channel (9) that communicates with described exhalant canal (6) on the described valve body (1), have first passage (10) on the described valve rod (4), form valve pocket (11) between the upper-end surface of the cavity inner wall of described valve body (1) and described spool (2), when described spool (2) was in first working state, described second channel (8) communicated with described valve pocket (11) by first passage (10); When described spool (2) was in second working state, described third channel (9) communicated with described valve pocket (11) by described first passage (10); Have hydraulic action power district (13) on the described spool (2), this hydraulic action power district (13) has makes spool (2) be tending towards entering from first working state first stress surface (14) of second working state.

2, valve according to claim 1, it is characterized in that: described spool (2) also has the 3rd working state, described second channel this moment (8) all communicates with described first passage (10) with described third channel (9), and described intake tunnel (5) is connected with described exhalant canal (6).

3, valve according to claim 1 is characterized in that: the upper end of described valve body (2) has groove (12), and described groove (12) communicates with described valve pocket (11).

4, valve according to claim 1, it is characterized in that: described hydraulic action power district (13) also has makes spool (2) be tending towards entering from second working state second stress surface (15) of first working state, described first stress surface (14) along the area of contour of the movement direction of described spool (2) greater than the area of contour of described second stress surface (15) along described spool (2) movement direction.