CN205745371U - A kind of gate valve using hydraulic thrust shadoof to make mechanism for opening/closing - Google Patents

Abstract

A kind of gate valve using hydraulic thrust shadoof to make mechanism for opening/closing, including valve body (1), valve plate (2), hydraulic thrust shadoof (4), it is characterized in that: hydraulic thrust shadoof (4) directly pushes away poppet-valve plate and opens and closes gate valve, realize the keying of automatic or manual control valve, it is widely used in the pipeline of pumping plant or more than bore DN400, play energy-conservation and power-saving function, especially prominent is by hydraulic thrust shadoof control valve, not in use by nut and screw mandrel, and because due to this, to push away shadoof external, the service life of gate valve can be greatly prolonged, easy to maintenance, pipeline work is not affected during maintenance；Meanwhile, what non-pumping plant used uses the portable shadoof that pushes away, and reduces the manufacturing cost of gate valve, and when pumping plant uses, configuration automatic control system replaces check-valves, reduces pump operation resistance, improves media flow effect, lowers consumption for energy saving in pumping station.The use of this gate valve means a great, and is worthy to be popularized.

Description

A kind of gate valve using hydraulic thrust shadoof to make mechanism for opening/closing

Technical field

This utility model is a kind of gate valve using hydraulic thrust shadoof to make mechanism for opening/closing, relates to pumping plant and transmission & distribution liquid, gas, belongs to Plumbing, supply field.

Background technology

In pumping plant and transmission & distribution liquid, feed channel, it is common to use gate valve, butterfly valve, check-valves etc., owing to butterfly valve plate can be to pipe Flow media in road forms resistance, blocks performance bad, easily cause leakage, therefore will progressively be eliminated during closedown, and tradition lock Valve uses nut and screw mandrel and is arranged on valve inner, during keying, relies on rotary screw to push away and proposes nut drive valve plate motion realization Opening and closing gate valve, in opening-closing process, owing to the flow media in pipeline has bigger thrust to valve plate so that each parts stress is multiple Miscellaneous, frictional force is relatively big, and screw mandrel and nut are easy to wear, shorten the service life of gate valve, safeguard the most extremely difficult, particularly open and close Gate valve frequently；Simultaneously as screw mandrel often rotates a circle, nut vertically move the most several millimeter, opening and closing gate valve is time-consuming to be taken Power, the gate valve of DN400, a people is the most operable, and the gate valve of more than DN500, a people does not just operate at all, needs multiple People operates, and operating difficulties.For extending the service life of gate valve, solve maintenance issues, be allowed to rapid operation, it is necessary to existing The structure of traditional gate valve improves.

Summary of the invention

For prior art products situation, for extending the service life of gate valve, maintain easily, solve to open and close asking of difficulty Topic, problem to be solved in the utility model is to remove nut, screw mandrel, simplifies valve inner structure, drive mechanism is moved on to valve External body, uses hydraulic thrust shadoof opening and closing gate valve.

For solving the problems referred to above, the scheme that this utility model is taked is: valve plate design becomes an entirety, is placed in valve body In, hydraulic thrust shadoof is placed in outside valve body, by suitable connected mode, pushes away poppet-valve plate and realizes opening and closing gate valve, and its component includes Valve body, valve plate, sealing gasket, tie down screw, connection seat, hydraulic thrust shadoof, it is characterised in that: valve plate upper end arranges one section with even Connecing the stainless steel column of screw thread, and arranging shoulder at valve plate, body top is installed with rubber ring pad and connects screw thread Rustless steel connects seat, and when gate valve fully opens, the stainless steel column on valve plate stretches out suitable length within connecting bore, in order to liquid Pressure connection pushes away shadoof, and hydraulic thrust shadoof front portion arranges female thread, and during opening and closing gate valve, steel column stainless with valve plate is connected, hydraulic thrust shadoof The anterior loose joint being provided with band sealing gasket of seat, is connected seat and connects with rustless steel, and hydraulic thrust shadoof moves downward closing gate valve, hydraulic pressure Pushing away shadoof to move upward breakdown gate valve, hydraulic thrust shadoof can be fixed, it is possible to portable general.

Compared with prior art product, of the present utility model have the active effect that one be extend gate valve service life, pass The system the most flimsy parts of gate valve are nut and screw mandrel, and this utility model has eliminated nut and screw mandrel；Two is maintenance side Just, this utility model relative flimsiness position is hydraulic thrust shadoof, and these parts are placed in outside valve body, and easily assembling does not affects during maintenance The normal work of gate valve, it is convenient that portable hydraulic pushes away shadoof maintenance；Three is the labor intensity reducing operator；Four is can Realization automatically controls.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model (longitudinal section view), label in figure: 1, valve body, 2, valve plate, 3, connect Seat, 4, hydraulic thrust shadoof, 5, loose joint, 6, polyethylene pads, 7, rubber ring, 8, tie down screw.

Detailed description of the invention

As it is shown in figure 1, a kind of gate valve using hydraulic thrust shadoof to make mechanism for opening/closing, including valve body 1, valve plate 2, connect seat 3, Hydraulic thrust shadoof 4, loose joint 5, polyethylene pads 6, rubber ring 7, tie down screw 8, detailed description of the invention: during closing gate valve, by hydraulic pressure Push away shadoof 4 to screw in the stainless steel column in valve plate 2 top and tighten, then loose joint 5 is screwed in connection seat 3 tighten, then unclamp tie down screw 8, Opening and push away valve injection pressure under hydraulic thrust shadoof 4 oil cylinder, hydraulic thrust shadoof moves downward, until gate valve is closed, keeps the pass of gate valve Closed state；When opening gate valve, opening the lifting valve injection pressure of hydraulic thrust shadoof, hydraulic thrust shadoof rises, and opens gate valve, fully opens Time, screw tie down screw 8, pin valve plate 2 spacing, be allowed to keep fully opened.

Claims (2)

1. using hydraulic thrust shadoof to make a gate valve for mechanism for opening/closing, its component includes valve body (1), valve plate (2), sealing gasket, lock Tight screw rod (8), connection seat (3), hydraulic thrust shadoof (4), it is characterised in that: valve plate (2) is integrally formed, and is placed in valve body (1) In, it is outside that hydraulic thrust shadoof (4) is placed in valve body (1), and valve plate (2) upper end arranges one section of stainless steel column with connection screw thread, and Arranging shoulder close to valve plate (2) place, body top is installed the rustless steel with rubber ring (7) and connection screw thread and is connected seat (3), When gate valve fully opens, the stainless steel column on valve plate (2) stretches out suitable length within connecting seat (3) hole, it is simple to connect hydraulic fluid Pressure pushes away shadoof (4), and hydraulic thrust shadoof (4) front portion arranges female thread, and during opening and closing gate valve, steel column stainless with valve plate is connected, and pushes away uncoupling rod bracket Front portion is provided with the loose joint (5) of band sealing gasket, is connected seat (3) with rustless steel and connects, and hydraulic thrust shadoof (4) moves downward cut out lock Valve, hydraulic thrust shadoof (4) moves upward breakdown gate valve, and hydraulic thrust shadoof (4) can be fixed, it is possible to portable general.

A kind of gate valve using hydraulic thrust shadoof to make mechanism for opening/closing the most according to claim 1, it is characterised in that: hydraulic thrust Shadoof (4) is connected directly between on valve plate (2), closes by pushing away poppet-valve plate (2) and opens gate valve.