CN215831158U

CN215831158U - Full-open type safety valve

Info

Publication number: CN215831158U
Application number: CN202121403489.9U
Authority: CN
Inventors: 曹毅; 陈小燕; 桑静; 夏兵
Original assignee: CHANGZHOU HUIFENG MARINE ACCESSORY PRODUCE CO LTD
Current assignee: CHANGZHOU HUIFENG MARINE ACCESSORY PRODUCE CO LTD
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-02-15
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to a full-open type safety valve which comprises a valve outer body with a discharge port, a lifting mechanism positioned in the valve outer body, an adjusting mechanism and a valve disc, wherein the adjusting mechanism and the valve disc are connected with the lifting mechanism and the valve outer body, a cushion block is arranged on the upper end surface of the valve disc, the valve disc is suitable for pushing the lifting mechanism to open the discharge port, and the adjusting mechanism is suitable for adjusting the lifting resistance of the lifting mechanism. This kind of open formula relief valve entirely, through the valve outer body and the valve disc be located the setting of earial drainage department, the break-make of this relief valve of control that can be fine, with the help of hoist mechanism's setting, thereby the valve disc of being convenient for overcomes hoist mechanism's damping force fine adaptation has the condition of safe pressure, and according to adjustment mechanism's setting, can the adaptation adjust the different damping force of hoist mechanism to guarantee whole good effect of opening and close.

Description

Full-open type safety valve

Technical Field

The utility model relates to a valve body, in particular to a full-open type safety valve.

Background

Chinese patent application No. 201020181711.0 discloses a high-pressure gas relief valve, including valve body, disk seat, valve disc and spring, the disk seat that has the inlet port is installed on the valve body, and the valve body has the valve pocket and is located valve pocket one side and is equipped with the venthole, and the valve disc is installed in the valve body and the laminating is at the inner wall of valve pocket, and adjusting bolt installs on valve body upper portion and the top spring holder, and lock nut installs on adjusting bolt, the valve disc in install down the spring holder, and the cone setting of spring holder bottom is in the cone of valve disc down, spring and return spring are respectively at last spring holder under and between the spring holder, and the disk seat connects in the valve body bottom soon, and disk seat and valve body junction crimping have soft gasket, and the upper portion of the inlet port of disk seat has the bulge loop platform, and the sealed pad is installed to the valve disc bottom, and sealed diameter of filling up is greater than bulge loop platform diameter. The utility model has the characteristics of reasonable structure, less gas medium leakage, quick action and reliable work.

Such a high-pressure gas safety valve has the following disadvantages:

1. the lower spring seat directly collides with the valve disc, so that the valve disc is easily damaged, the valve disc or the lower spring seat needs to be replaced, and the replacement cost is high;

2. directly through the spring direction, the centering effect of lower spring holder is relatively poor, makes lower spring holder and disk lateral wall striking and damage easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a full-open type safety valve which is convenient for protecting a valve disc and a lower spring seat so as to solve the problems.

In order to achieve the above object, an embodiment of the present invention provides a full-open safety valve, which includes a valve outer body having a discharge port, a lifting mechanism located in the valve outer body, a regulating mechanism connecting the lifting mechanism and the valve outer body, and a valve disc, wherein a pad is disposed on an upper end surface of the valve disc, wherein the valve disc is provided with a first pad, and the first pad is disposed on a first end surface of the valve disc, and the second pad is disposed on a second end surface of the valve disc, and the first pad is connected to the second pad

The valve disc is suitable for pushing the lifting mechanism to open the discharge port, and the adjusting mechanism is suitable for adjusting the lifting resistance of the lifting mechanism.

Preferably, the lifting mechanism comprises a lifting rod, a lower damping part fixed on the lifting rod;

the adjusting mechanism comprises an adjusting part fixed at the upper end of the valve outer body and an upper damping part fixed on the adjusting part; and

the lifting rod is sleeved in the adjusting part, and the adjusting part is suitable for adjusting the damping values of the upper damping part and the lower damping part; wherein

The valve disc is adapted to lift against the upper and lower damping portions in cooperation with the lift rod.

Preferably, the adjusting part comprises an outer sleeve which is in threaded connection with the valve outer body, a locking nut which is in threaded connection with the outer sleeve, and an upper damping part which is fixed at the lower end of the outer sleeve; and

the ends of the lifting rod are slidably disposed within the outer sleeve.

Preferably, the upper damping part comprises an upper damping seat fixed at the lower end of the outer sleeve, and an outer damping spring of which the upper end is fixed on the upper damping seat; the lower damping part comprises a lower damping seat fixed at the lower end of the lifting rod, and an inner damping spring of which the lower end is fixed on the lower damping seat; and

the upper end of the inner damping spring is fixed on the upper damping seat, the lower end of the outer damping spring is fixed on the lower damping seat, and the inner damping spring and the outer damping spring are sequentially sleeved on the lifting rod from inside to outside.

Preferably, a tip is formed at the end part of the lifting rod, and a tip groove matched with the tip is formed on the upper end surface of the cushion block; and

the pointed end is clamped in the pointed groove.

Preferably, the valve outer body has an inlet at the bottom and an outlet at the side, and

and a supporting ring platform is arranged at the inlet of the outlet channel, a contact ring platform is arranged at the bottom of the valve disc, and the contact ring platform is attached to the supporting ring platform.

Preferably, the cross section of the contact ring platform is an inverted trapezoid platform.

Preferably, the full-open safety valve further comprises a valve cap, and the valve cap is connected to the valve outer body in a threaded mode.

The utility model has the beneficial effects that:

this kind of open formula relief valve entirely, through the valve outer body and the valve disc be located the setting of earial drainage department, the break-make of this relief valve of control that can be fine, with the help of hoist mechanism's setting, thereby the valve disc of being convenient for overcomes hoist mechanism's damping force fine adaptation has the condition of safe pressure, and according to adjustment mechanism's setting, can the adaptation adjust the different damping force of hoist mechanism to guarantee whole good effect of opening and close.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram illustrating a full-open safety valve provided by an embodiment of the utility model;

fig. 2 is a schematic structural diagram illustrating a full-open safety valve provided by an embodiment of the utility model;

fig. 3 is a schematic structural diagram illustrating a full-open safety valve provided by an embodiment of the utility model;

FIG. 4 shows an enlarged view at A of FIG. 3;

FIG. 5 illustrates a valve disc movement, liquid flow diagram provided by an embodiment of the present invention.

In the figure:

100. the valve comprises a valve outer body 110, an inflow port 120, an outflow channel 130 and a supporting ring platform;

200. the lifting mechanism comprises a lifting mechanism 210, a lifting rod 211, a tip 220, an inner damping spring 230 and a lower damping seat;

300. the adjusting mechanism comprises an adjusting mechanism 310, an outer sleeve 320, a locking nut 330, an upper damping seat 340 and an outer damping spring;

400. valve disc, 410, contact land;

500. cushion, 600, valve cap.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Referring to fig. 1 to 5, a full open type safety valve comprises a valve outer body 100 with a leakage opening, a lifting mechanism 200 located in the valve outer body 100, an adjusting mechanism 300 and a valve disc 400 connecting the lifting mechanism 200 and the valve outer body 100, wherein a pad 500 is arranged on an upper end surface of the valve disc 400, the valve disc 400 is adapted to push the lifting mechanism 200 to open the leakage opening, and the adjusting mechanism 300 is adapted to adjust a lifting resistance of the lifting mechanism.

This kind of open formula relief valve entirely, the setting that is located the earial drainage department through valve outer body 100 and valve disc 400, the break-make of this relief valve of control that can be fine, with the help of the setting of hoist mechanism 200, thereby the valve disc 400 of being convenient for overcomes hoist mechanism 200's damping force fine adaptation has the condition of safe pressure, and according to adjustment mechanism 300's setting, can the adaptation adjust the different damping force of hoist mechanism 200 to guarantee whole good effect of opening and close.

A tip 211 is formed at the end of the lifting rod 210, and a tip groove adapted to the tip 211 is formed on the upper end surface of the spacer 500; and the pointed end 211 is clamped in the pointed groove. The tip 211 is matched in the tip groove, so that the effect of limiting and matching can be well achieved, and the positioning and supporting effects are good.

Specifically, the lifting mechanism 200 includes a lifting rod 210, a lower damping portion fixed to the lifting rod 210; the adjusting mechanism 300 includes an adjusting part fixed at the upper end of the valve outer body 100, and an upper damping part fixed on the adjusting part; and the lifting rod 210 is sleeved in the adjusting part, and the adjusting part is suitable for adjusting the damping values of the upper damping part and the lower damping part; wherein the valve disc 400 is adapted to lift against the upper and lower damping portions in cooperation with the poppet 210.

Wherein, the valve disc 400 pushes the lifting rod 210, so that the valve disc 400 overcomes the damping values of the upper damping part and the lower damping part, and pushes and opens the leakage port upwards, thereby realizing the leakage. The setting of regulating part can be used for adjusting the whole damping value of upper damping portion and lower damping portion to with this damping value under the different pressure adjustment of matching.

The adjusting part comprises an outer sleeve 310 which is in threaded connection with the valve outer body 100, a locking nut 320 which is in threaded connection with the outer sleeve 310, and an upper damping part which is fixed at the lower end of the outer sleeve 310; and the end of the lifting rod 210 is slidably disposed within the outer sleeve 310.

When the damping value needs to be adjusted and improved, firstly, the locking nut 320 is rotated anticlockwise to enable the locking nut 320 to be separated from the contact with the valve outer body 100, and then the outer sleeve 310 is rotated anticlockwise to enable the outer sleeve 310 to be lifted upwards, so that the damping values of the upper damping part and the lower damping part are improved; when the damping value needs to be adjusted and decreased, the lock nut 320 is first rotated counterclockwise to release the lock nut 320 from contact with the valve outer body 100, and then the outer sleeve 310 is rotated clockwise to press down the outer sleeve 310, thereby decreasing the damping values of the upper and lower damping portions.

Wherein, go up damping portion and lower damping portion's specific structure as follows:

the upper damping part comprises an upper damping seat 330 fixed at the lower end of the outer sleeve 310 and an outer damping spring 340 with the upper end fixed on the upper damping seat 330; the lower damping part includes a lower damping seat 230 fixed to a lower end of the lifting rod 210, and an inner damping spring 220 having a lower end fixed to the lower damping seat 230; and

the upper end of the inner damping spring 220 is fixed on the upper damping seat 330, the lower end of the outer damping spring 340 is fixed on the lower damping seat 230, and the inner damping spring 220 and the outer damping spring 340 are sequentially sleeved on the lifting rod 210 from inside to outside.

During the lifting of the valve disc 400, the spring forces of the inner damping spring 220 and the outer damping spring 340 need to be overcome; when the damping value is adjusted, the inner damping spring 220 and the outer damping spring 340 are stretched by rotating the outer sleeve 310 counterclockwise, so that the damping values of the inner damping spring 220 and the outer damping spring 340 are increased; by rotating the outer sleeve 310 clockwise, the lengths of the inner damping spring 220 and the outer damping spring 340 are reduced, thereby reducing the damping values of the inner damping spring 220 and the outer damping spring 340.

The valve outer body 100 has an inlet 110 at the bottom, an outlet 120 at the side, and a support ring 130 at the inlet of the outlet 120, the valve disc 400 has a contact ring 410 at the bottom, the contact ring 410 is attached to the support ring 130, and the cross section of the contact ring 410 is an inverted trapezoid. The supporting ring table 130 and the contact ring table 410 are matched with each other, so that the overall positioning and supporting effect is good, and the contact ring table 410 is an inverted trapezoid table, so that the overall structure is stable.

In order to protect the adjusting part better, the following technical scheme is adopted: the safety valve further includes a bonnet 600, and the bonnet 600 is threadedly coupled to the valve outer body 100. The bonnet 600 is configured to provide good shielding to the adjustment mechanism 300.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The full-open safety valve comprises a valve outer body with a discharge port, and is characterized in that the full-open safety valve also comprises a lifting mechanism positioned in the valve outer body, an adjusting mechanism and a valve disc which are connected with the lifting mechanism and the valve outer body, wherein a cushion block is arranged on the upper end surface of the valve disc, and the cushion block is arranged on the upper end surface of the valve disc

2. The full start safety valve of claim 1,

the lifting mechanism comprises a lifting rod and a lower damping part fixed on the lifting rod;

3. The full start safety valve of claim 2,

the adjusting part comprises an outer sleeve which is in threaded connection with the valve outer body, a locking nut which is in threaded connection with the outer sleeve, and an upper damping part which is fixed at the lower end of the outer sleeve; and

the ends of the lifting rod are slidably disposed within the outer sleeve.

4. The full start safety valve of claim 3,

the upper damping part comprises an upper damping seat fixed at the lower end of the outer sleeve, and an outer damping spring of which the upper end is fixed on the upper damping seat; the lower damping part comprises a lower damping seat fixed at the lower end of the lifting rod, and an inner damping spring of which the lower end is fixed on the lower damping seat; and

5. The full start safety valve of claim 2,

a tip is formed at the end part of the lifting rod, and a tip groove matched with the tip is formed in the upper end surface of the cushion block; and

the pointed end is clamped in the pointed groove.

6. The full start safety valve of claim 4,

the bottom of the valve outer body is provided with an inlet, the side part is provided with an outlet channel, an

7. The full start safety valve of claim 6,

the cross section of the contact ring platform is an inverted trapezoid platform.

8. The full start safety valve of claim 7,

the full-open safety valve further comprises a valve cap, and the valve cap is in threaded connection with the valve outer body.