CN2430590Y

CN2430590Y - One way throttle valve device

Info

Publication number: CN2430590Y
Application number: CN 00243235
Authority: CN
Inventors: 任学民
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-10
Filing date: 2000-07-10
Publication date: 2001-05-16
Anticipated expiration: 2010-07-10

Abstract

The utility model provides a one way throttle valve device. An upper and a lower valve bodies are assembled separately, a valve rod is arranged on a through hole of a ribbed slab of the lower valve body and is provided orderly with a return spring, a valve plate, a sealing gasket and a sliding block which is connected with a copper bush at the lower end of a valve seat through hole in the inner cavity of the upper valve body, and a fastening bolt at the upper end of the valve rod is positioned in sliding movement. The utility model is characterized in that owing to the separate assembly of the valve bodies, inner cavity members are changed easily and maintained conveniently, the added return spring results in accurate action and effective returning movement, and the utility model has the advantages of good sealing property and reliable performance.

Description

Novel one-way throttle control valve unit

The utility model belongs to hydraulic fittings, particularly a kind of novel one-way throttle control valve unit.

Employed one-way throttle control valve unit on present water tank, oil cylinder and the pressure-less boiler, its structure is: valve body is the integral sealing formula, spool opens shape for revolving, it utilizes seal spool plate back-roll stationary axle freely to agitate to control the flow direction of fluid, but in use exist following defective: (one) is because long-term the use, sliding friction surface between sealing plate and the sealing and fixing axle corrosion occurs or sediments is arranged and causes its force of sliding friction to increase, and influences the sensitivity of its unlatching; (2) because flow velocity and pressure transient by the flowing medium in the valve body, the time and the angle that sealing plate opens to occur suddenly big or suddenly small, neglecting when big sealing plate can not return, neglects hour then not open; (3) owing to the whole shape that is designed to of valve body, cause maintenance inconvenience in other words owing to break down in the valve body, cause scrapping of whole one-way valve.

The purpose of this utility model is intended to overcome above-mentioned defective, and a kind of reliable performance is provided, good seal, the novel one-way throttle control valve unit of the valve body split of being convenient to keep in repair assembling.

The purpose of this utility model realizes with following technological scheme:

A kind of novel one-way throttle control valve unit, it is characterized in that, it has upper valve body, following valve body, O-ring seal, valve rod, slide block, copper sheathing, sealing gasket, valve plate and return spring are formed, on, following valve body is by the adpting flange of valve body end, installing O-ring seal therebetween additional is tightly connected by clamping bolt, the gusset that in the middle part of body cavity is shaped on down, has through hole, upper valve body inner chamber upper end is provided with the interior valve seat that the middle part has through hole, copper sheathing is loaded on interior valve seat through-hole lower end mouth, valve rod is loaded on down on the through hole of gusset of valve body, return spring is housed on the valve rod in succession, valve plate, sealing gasket, slide block, and slide block is provided with passage and be connected with the copper sheathing sliding fit, and the tightening nut that is loaded on the valve rod upper end is with the slide block positioning and fixing.

Characteristics of the present utility model are: because valve body is the split assembling, its inner chamber spare is changed easily, be convenient to maintenance, the return spring that installs additional makes its action accurately, and return is effective, and good airproof performance, reliable performance.

Below in conjunction with drawings and Examples in detail the utility model is described in detail.

Accompanying drawing 1 structural representation of the present utility model.

Accompanying drawing 2 slide block plan views of the present utility model.

Among the figure: 1 upper valve body, 2 times valve bodies, 3 O-ring seals, 4 valve rods, 5 slide blocks, 6 copper sheathings, 7 sealing gaskets, 8 valve plates, 9 return springs, 10 adpting flanges, 11 clamping bolts, 12 tightening nuts, 13 gussets, 14 interior valve seats, 15 passages.

As shown in Figure 1, valve body is the adpting flange 10 by upper valve body 1 and following valve body 2 ends, install rubber O-ring seal 3 therebetween additional, be tightly connected by clamping bolt 11, on the middle through hole of the gusset 13 that descends valve body 2 inner chambers, return spring 9 is housed in succession, valve body 8 rubber gaskets 7, copper slide block 5, and evenly be provided with three liquid liquid passages on the slide block 5 and be connected with copper sheathing 6 sliding fits of interior valve seat 14 through hole ports on the upper valve body 1, the tightening nut 12 that is loaded on valve body 4 upper ends is with slide block 5 positioning and fixing.

Its working principle is: when high-velocity fluid A to when the body cavity, under the pressure effect of fluid, make length of spring compressed by slide block 5 passages 15, thereby valve plate 3 is opened, and fluid is passed through, when fluid stops to flow, valve plate 8 is under the elastic force effect of return spring 9, and return seals rapidly.Effect with one-way throttle.

Claims

1, a kind of novel one-way throttle control valve unit, it is characterized in that, it has upper valve body, following valve body, O-ring seal, valve rod, slide block, copper sheathing, sealing gasket, valve plate and return spring are formed, on, following valve body is by the adpting flange of valve body end, installing O-ring seal therebetween additional is tightly connected by clamping bolt, the gusset that in the middle part of body cavity is shaped on down, has through hole, upper valve body inner chamber upper end is provided with the interior valve seat that the middle part has through hole, copper sheathing is loaded on interior valve seat through-hole lower end mouth, valve rod is loaded on down on the through hole of gusset of valve body, return spring is housed on the valve rod in succession, valve plate, the sealing gasket slide block, and slide block is provided with passage and be connected with the copper sheathing sliding fit, and the tightening nut that is loaded on the valve rod upper end is with the slide block positioning and fixing.