CN2103060U

CN2103060U - Sealing rubber cavity valve

Info

Publication number: CN2103060U
Application number: CN 91225059
Authority: CN
Inventors: 刘万奇
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-11
Filing date: 1991-09-11
Publication date: 1992-04-29

Abstract

The utility model relates to a sealed gluey chamber valve for flow control, it includes the valve body and installs the adjusting screw on the valve body, and its special character lies in, has a pair of upper and lower clamp plate in the valve body, and the one end dress of this a pair of clamp plate is on a location slide bar, and the other end dress is in adjusting screw on, the screw thread of adjusting screw first end be right-handed thread, the screw thread of second end is left-handed thread, adorns a rubber valve pocket between the upper and lower clamp plate, the built-in arch valve tongue of valve pocket. The valve solves the defects that the existing valve sealing element is easy to damage and has poor reliability and the like, and can be used for opening, closing or adjusting fluid in various pipelines.

Description

Sealed rubber-cavity valve

The utility model relates to a kind of valve, is a kind of sealer chamber valve that is used for Flow-rate adjustment specifically.

Existing valve; mostly be sealing gasket to be housed and rotating flap carries out Flow-rate adjustment by one; the sealing gasket that is in rotary part tends to owing to friction damages, so the reliability of this valve is relatively poor, regular meeting produces leakage phenomenon opening and close often.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of sealability reliable, the difficult sealer chamber valve that leaks that produces.

Technical solution of the present utility model is: a kind of sealer chamber valve, comprise valve body and be installed in adjusting screw rod on the valve body, its special way is: have a pair of upper and lower pressing plate in the valve body, one end of this a pair of pressing plate is contained on the positioning rod, the other end is contained on the described adjusting screw rod, the screw thread of first end of adjusting screw rod is a left-handed thread, the screw thread of second end is a right-handed thread, adorn a rubber valve pocket between the upper and lower pressing plate, the two ends of valve pocket respectively are provided with a boss, adorn an arch clack valve between the boss.

For bearing strength, working life and the sealability that increases valve pocket, valve pocket can be made of two-layer rubber, also can be made of three layers or multilayer rubber.They not only can be made by rubber, also can be made by other rubber-like material.

Accompanying drawing has been described an embodiment of the present utility model.

Fig. 1 is this embodiment's a sectional structure chart;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the sectional structure chart after this embodiment closes;

Fig. 5 is the C-C sectional view of Fig. 4.

Referring to Fig. 1～3 as can be known, sealing glue chamber valve has a valve body 1, this valve body 1 is by last, following two-part cooperation forms, adorn an adjusting screw rod 2 on the valve body 1, a top board 3 and a press table 4 are housed in the valve body 1, press table 4 is the groove shape, one end of this a pair of pressing plate is contained on the adjusting screw rod 2, the other end is contained on the positioning rod 5, the screw thread of adjusting screw rod 2 upper ends is a left-handed thread 6, and the screw thread of lower end is a right-handed thread 7, and both helix direction of windings are just in time opposite, when adjusting screw rod 2 rotates, on, the movement direction of press table is also just in time opposite, on, adorn a valve pocket 8 that constitutes by two-layer rubber between the press table, folder finer wire or fabric between its outer layer rubber, to increase its toughness and wear resistance, internal layer rubber presss from both sides fabric or is gum.The two ends of valve pocket 8 inwalls respectively are provided with and adorn an arch clack valve 10 of being made by rubber between 9, two boss 9 of a boss, and the effect of boss 9 is in order to prevent that clack valve 10 from moving and overturn.

Referring to Fig. 4, Fig. 5, be rotated counterclockwise adjusting screw rod 2 by one handle during use, top board 3 moves down, press table 4 then moves up, both compress valve pocket 8 jointly, make in its groove that is pressed into press table 4, and by the cylindric flat that fades to, clack valve 10 fades to flat by arch shape, is then reduced gradually so that close fully by maximum by the fluid in the valve.During unlatching, backward rotation adjusting screw rod 2, valve will return to original position and reopen.

In conjunction with the foregoing description as can be seen, because the utility model adopts upper and lower pressing plate compression valve pocket and clack valve to come throttle down, when valve closing, the valve pocket inwall will closely paste mutually with the surface of clack valve, thereby having long working life, reliability preferably than prior art, when closing seldom leakage phenomenon can appear.

Claims

1, a kind of sealer chamber valve, comprise valve body and be installed in adjusting screw rod on the valve body, it is characterized in that: a pair of upper and lower pressing plate is housed in the valve body, one end of this a pair of pressing plate is contained on the positioning rod, and the other end is contained on the described adjusting screw rod, and the screw thread of first end of adjusting screw rod is a left-handed thread, the screw thread of second end is a right-handed thread, adorn a rubber valve pocket between the described upper and lower pressing plate, the two ends of valve pocket inwall respectively are provided with a boss, adorn an arch clack valve between the boss.

2, sealer according to claim 1 chamber valve, it is characterized in that: described rubber valve pocket is made of two-layer, folder steel wire or fabric between the outer layer rubber, folder fabric or be gum between the internal layer rubber.

3, sealer according to claim 1 and 2 chamber valve, it is characterized in that: described press table is the groove shape.