CN205938062U

CN205938062U - Sea valve

Info

Publication number: CN205938062U
Application number: CN201620744764.6U
Authority: CN
Inventors: 吕益成; 孙益盟
Original assignee: Yongjia 10% Petrochemical Machinery Co Ltd
Current assignee: Yongjia 10% Petrochemical Machinery Co Ltd
Priority date: 2016-07-15
Filing date: 2016-07-15
Publication date: 2017-02-08
Anticipated expiration: 2026-07-15

Abstract

The utility model discloses a stone oil valve, specifically speaking are sea valve, including the valve casing with install the case in the valve casing, oil -out and oil inlet have on the valve casing, mounting flange on the outer wall of valve casing, the case include the piston, with hinge joint's ejector pin and the reset spring of suit in the ejector pin outside, still set up cylinder drive arrangement in the inner chamber of valve casing, cylinder drive arrangement's output shaft is at the lower extreme of piston, owing to adopted above -mentioned technical scheme, a sea valve can make inseparable the sealing on the disk seat of piston through setting up closing device, avoid not hard up, use a period after, can not cause the case oil leak because of energy consumption yet, improve the life -span of using, the extension live time improves work efficiency.

Description

A kind of sea cock and valve

Technical field

This utility model is related to a kind of oil valve, specifically a kind of sea cock and valve.

Background technology

Sea cock and valve is a kind of safety-valve being arranged on liquid hazardous goods pot type automotive metal constant pressure tank body loading hatch.Sea Bottom valve is typically mounted on the tank bottom of tank truck, for from tank bottom charge of oil, during charge of oil, being pushed up by moving from driving cylinder Valve opening lobe, sea cock and valve is opened, and oil enters into valve pocket from medium channel, then enters into storage tank from valve pocket, thus completing oil-feed Process；Also carry out according to this principle during emptying.

Existing sea cock and valve the disadvantage is that, in use for some time, have energy loss between the piston of valve and side wall, Cause sea cock and valve during valve closing poorly sealed, thus impact is normal using.

Utility model content

In order to make up above deficiency, this utility model provides a kind of sea cock and valve avoiding valve seal not tight, to solve Problem in above-mentioned background technology.

The technical solution of the utility model is：

A kind of sea cock and valve, including valve casing and the valve element being arranged in valve casing, described valve casing has oil-out and oil-in, Mounting flange on the outer wall of described valve casing, described valve element includes push rod that piston is connected with piston and is sleeved on outside push rod Back-moving spring, also set up cylinder driver in the inner chamber of described valve casing, the output shaft of described cylinder driver is connected to The lower end of piston, setting on the inwall of described valve casing protrudes from the annular piston limit base of inwall setting, and described limit base is cone Shape, the lower end of described piston and limit base match setting, and the top of described piston is provided for for piston being pressed on limit base On hold down gag, described hold down gag includes the annular recess being arranged on valve casing inwall, installs ring-type in described groove Air bag, installs ring-type rubber closure at the slot opening outside described air bag, the upper and lower ends of described rubber closure are fixedly connected on recessed On the side wall of groove.

As preferred technical scheme, the side wall of described valve casing is provided with the passage of plug-in mounting breather, described breather One end is connected with air bag, and the other end of described breather is communicated in the cylinder chamber of cylinder driver, and described breather is gone here and there Connection intake valve.

As preferred technical scheme, the lower end of described piston is the taper cartridge part matching with limit base.

Due to employing technique scheme, a kind of sea cock and valve described in the utility model passes through setting hold down gag can be made Piston is closely sealed on valve seat, it is to avoid loosen, and after a period of time, also valve element will be caused to leak because of energy expenditure Oil, improves the life-span using, and extends use time, improves work efficiency.

Brief description

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, before not paying creative labor Put, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of this utility model embodiment；

Fig. 2 is the structure enlarged diagram of part A in Fig. 1.

Specific embodiment

Embodiment one：As shown in figure 1, a kind of sea cock and valve described in the utility model, including valve casing 1 be arranged on valve casing 1 Interior valve element, described valve casing 1 has oil-out 2 and oil-in 3, mounting flange 4 on the outer wall of described valve casing 1, described enter Hydraulic fluid port 2 is connected by ring flange 4 with the oil-out of tank body, and described oil-out 3 is connected with oil pipeline, for by tank car Crude oil exports.

Described valve element includes piston 5 push rod 6 being connected with piston and the back-moving spring 7 being sleeved on push rod 6 outside, piston 5 With the setting of valve casing 1 inner wall sealing, in the inner chamber of described valve casing 1, also set up cylinder driver 8, described cylinder driver 8 Output shaft is connected to the lower end of piston 5, is moved up and down by air cylinder driven band piston 5, and described oil-out 2 is arranged on piston 5 Upper end, after piston 5 moves, oil-out 2 is connected with oil-in 3, completes the unlatching of valve, and the inwall of described valve casing 1 is arranged Protrude from the annular piston limit base 9 of inwall setting, described limit base 9 is taper, the lower end of described piston 5 and limit base 9 phase Coupling setting, the lower end of described piston 5 is the taper cartridge part matching with limit base 9, in cartridge part insertion limit base 9, cone The limiting section 9 of shape makes the tighter of piston 5 clamp, better tightness, and the top of described piston 5 is provided for being pressed on piston 5 Hold down gag on limit base 9, described hold down gag includes the annular recess 10 being arranged on valve casing 1 inwall, described groove 10 The interior air bag 11 installing ring-type, installs ring-type rubber closure 12 at the slot opening in described air bag 11 outside, described rubber closure 12 Upper and lower ends are fixedly connected on the side wall of groove 10, by inflating in air bag 11, can make airbag inflation, make outside rubber stopper 12 Convex, it is stuck in the upper surface of piston 5, so that piston 5 is pressed in limit base 9.

The side wall of described valve casing 1 is provided with the passage of plug-in mounting breather 13, and one end of described breather 13 is with air bag 11 even Logical, the other end of described breather 13 is communicated in the cylinder chamber of cylinder driver 8, air inlet that described breather 13 is connected Valve, during cylinder operation, the indoor small portion of gas of cylinder enters in breather 13, is entered in air bag 11 by intake valve, completes Inflation action.

Of the present utility model ultimate principle, principal character and of the present utility model advantage have been shown and described above.One's own profession The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also Have various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This utility model Claimed scope is by appending claims and its equivalent thereof.

Claims

1. a kind of sea cock and valve, including valve casing（1）Be arranged on valve casing（1）Interior valve element, described valve casing（1）On there is oil-out （2）And oil-in（3）, described valve casing（1）Outer wall on mounting flange（4）, described valve element includes piston（5）, and piston is even The push rod connecing（6）Be sleeved on push rod（6）The back-moving spring in outside（7）, described valve casing（1）Inner chamber in also set up air cylinder driven Device（8）, described cylinder driver（8）Output shaft be connected to piston（5）Lower end it is characterised in that：Described valve casing（1） Inwall on setting protrude from inwall setting annular piston limit base（9）, described limit base（9）For taper, described piston（5） Lower end and limit base（9）Match setting, described piston（5）Top be provided for piston（5）It is pressed on limit base（9） On hold down gag, described hold down gag includes being arranged on valve casing（1）Annular recess on inwall（10）, described groove（10）Interior The air bag of ring-type is installed（11）, described air bag（11）Ring-type rubber closure is installed at the slot opening in outside（12）, described rubber closure （12）Upper and lower ends be fixedly connected on groove（10）Side wall on.

2. as claimed in claim 1 a kind of sea cock and valve it is characterised in that：Described valve casing（1）Side wall be provided with plug-in mounting ventilation Pipe（13）Passage, described breather（13）One end and air bag（11）Connection, described breather（13）The other end be communicated to Cylinder driver（8）Cylinder chamber in, described breather（13）Upper series connection intake valve.

3. as claimed in claim 2 a kind of sea cock and valve it is characterised in that：Described piston（5）Lower end be and limit base（9）Phase The taper cartridge part of coupling.