CN213271177U

CN213271177U - Full-open type threaded connection safety valve

Info

Publication number: CN213271177U
Application number: CN202021317487.3U
Authority: CN
Inventors: 傅炳亮
Original assignee: Zhejiang Fuchao Safety Valve Manufacturing Co ltd
Current assignee: Zhejiang Fuchao Safety Valve Manufacturing Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-05-25
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a open formula threaded connection relief valve entirely belongs to relief valve assembly technical field. The utility model discloses a valve body, the middle-end threaded connection at valve body top has the threaded rod, there is the fixed block bottom of threaded rod through bearing swing joint, the bottom fixedly connected with second spring of fixed block, the bottom fixedly connected with connecting rod of second spring. The utility model discloses a when rotating the threaded rod, the threaded rod can be along valve body downstream, the threaded rod removes and drives the fixed block and remove, the fixed block removes and drives the second spring and removes, the second spring removes and drives the connecting rod and removes, the connecting rod removes and drives first spring downstream, first spring downstream drives sealed disk seat and sealed the pad downstream, when sealed the pad contacts with the surface of valve body inner chamber, under the rotation of threaded rod continuous, first spring and second spring all produced elastic deformation, can be to sealed disk seat and sealed relative effort of pad simultaneously, make sealed the internal surface of hugging closely the valve body of pad.

Description

Full-open type threaded connection safety valve

Technical Field

The utility model belongs to the technical field of the relief valve assembly, specifically be open formula threaded connection relief valve entirely.

Background

The relief valve belongs to an automatic valve, mainly used control boiler, pressure vessel, internal pressure such as pipeline is no longer than the specified value, in order to prevent that pressure from damaging equipment or hindering the people too high, wherein the spring opens formula relief valve entirely is comparatively common, when medium pressure (internal pressure) risees to enough to overcome the spring pretightning force, the valve clack is automatic to be opened, it makes the internal pressure decline to discharge the medium, when internal pressure drops to the specified value, valve clack self-closing under the spring force effect, the medium stops to discharge, traditional relief valve is mostly the single spring formula, because the spring can lead to the elastic potential performance weakening of spring self under long-time user state, cause the relief valve to become invalid, the life of relief valve has been.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formula threaded connection relief valve opens entirely possesses long service life's advantage, has solved traditional relief valve and has mostly been the single spring formula, because the spring can lead to the elastic potential performance weak of spring self under long-time user state, causes the relief valve inefficacy, has reduced relief valve life's problem.

The utility model provides a following technical scheme: open formula threaded connection relief valve entirely, including the valve body, the middle-end threaded connection at valve body top has the threaded rod, the bottom of threaded rod has the fixed block through bearing swing joint, the bottom fixedly connected with second spring of fixed block, the bottom fixedly connected with connecting rod of second spring, the first spring of bottom fixedly connected with of connecting rod, the bottom fixedly connected with seal valve seat of first spring, and the surface swing joint of seal valve seat in the internal surface of connecting rod, the bottom fixedly connected with of seal valve seat is sealed to fill up, and the bottom swing joint who fills up in the surface of valve body inner chamber.

The bottom of the valve body is provided with an air inlet, and the lower end of the outer surface of the valve body is provided with a thread groove.

The periphery of the surface of the valve body is provided with vent holes, and the vent holes are rectangular.

The upper end fixedly connected with product label on the positive surface of valve body, the middle-end on the positive surface of valve body has seted up the bleeder vent.

The upper end of the threaded rod is movably connected with a stress application ring, and the specification of the stress application ring is six millimeters at two points.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model can move downwards along the valve body when the threaded rod is rotated, the threaded rod moves to drive the fixed block to move, the fixed block moves to drive the second spring to move, the second spring moves to drive the connecting rod to move, the connecting rod moves to drive the first spring to move downwards, the first spring moves downwards to drive the sealing valve seat and the sealing gasket to move downwards, when the sealing gasket contacts with the surface of the inner cavity of the valve body, under the continuous rotation of the threaded rod, the first spring and the second spring both generate elastic deformation, and simultaneously, a relative acting force can be applied to the sealing valve seat and the sealing gasket to enable the sealing gasket to cling to the inner surface of the valve body, thereby achieving the sealing effect, when one of the springs is damaged, and the sealing effect is invalid, the threaded rod can continue to move downwards, under the acting force of the other useful spring, the sealing gasket can cling to the inner surface, reach sealed effect once more for the valve body still can reach good sealed effect when one of them spring damages, has improved the life of valve body, has reduced because the valve body damages the cost expenditure that brings, has solved traditional relief valve and has mostly been the single spring formula, because the spring can lead to the elasticity trend performance weak of spring self under long-time user state, causes the relief valve to become invalid, has reduced relief valve life's problem.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the front view structure of the present invention.

In the figure: 1. a threaded rod; 2. a fixed block; 3. an exhaust hole; 4. a valve body; 5. an air inlet; 6. a gasket; 7. sealing the valve seat; 8. a first spring; 9. a connecting rod; 10. a second spring; 11. a force applying ring; 12. a product label; 13. air holes are formed; 14. a thread groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, the full-open type threaded connection safety valve comprises a valve body 4, an air inlet 5 is arranged at the bottom of the valve body 4, a thread groove 14 is arranged at the lower end of the outer surface of the valve body 4, vent holes 3 are formed all around the surface of the valve body 4, the vent holes 3 are rectangular, a product label 12 is fixedly connected to the upper end of the front surface of the valve body 4, an air vent 13 is formed at the middle end of the front surface of the valve body 4, a threaded rod 1 is connected to the middle end of the top of the valve body 4 through threads, a force applying ring 11 is movably connected to the upper end of the threaded rod 1, the specification of the force applying ring 11 is two-point six millimeters, a fixed block 2 is movably connected to the bottom of the threaded rod 1 through a bearing, a second spring 10 is fixedly connected to the bottom of the fixed block 2, a connecting rod 9 is fixedly connected, and the outer surface of the sealing valve seat 7 is movably connected with the inner surface of the connecting rod 9, the bottom of the sealing valve seat 7 is fixedly connected with the sealing gasket 6, and the bottom of the sealing gasket 6 is movably connected with the surface of the inner cavity of the valve body 4, when the threaded rod 1 is rotated, the threaded rod 1 can move downwards along the valve body 4, the threaded rod 1 moves to drive the fixed block 2 to move, the fixed block 2 moves to drive the second spring 10 to move, the second spring 10 moves to drive the connecting rod 9 to move, the connecting rod 9 moves to drive the first spring 8 to move downwards, the first spring 8 moves downwards to drive the sealing valve seat 7 and the sealing gasket 6 to move downwards, when the sealing gasket 6 is contacted with the surface of the inner cavity of the valve body 4, under the continuous rotation of the threaded rod 1, the first spring 8 and the second spring 10 both generate elastic deformation, and simultaneously, a, make sealed 6 internal surface of hugging closely valve body 4 of filling up, reach sealed effect, damage when one of them spring, when leading to sealed effect inefficacy, can continue rotatory threaded rod 1 and move downwards, under the effort of another useful spring, can make sealed 6 and valve body 4's internal surface hug closely, reach sealed effect once more, make valve body 4 still can reach good sealed effect when one of them spring damages, valve body 4's life has been improved, the cost expenditure that brings because valve body 4 damages has been reduced, it is mostly single spring formula to have solved traditional relief valve, because the spring can lead to the elastic potential performance weakening of spring self under long-time user state, cause the relief valve to become invalid, safety valve life's problem has been reduced.

The utility model provides an all parts are the parts that general standard spare or technical staff in the field know, its structure and principle all are this technical staff all can learn through the technical manual or learn through conventional experimental method, the standard part that uses in this application file simultaneously all can purchase from the market, each part can all be customized according to the record of description and attached drawing in this application file, the concrete joining mode of each part all adopts conventional means such as ripe bolt in the prior art, rivets, welding, machinery, part and equipment all adopt conventional model among the prior art.

The utility model discloses a when rotatory threaded rod 1, threaded rod 1 can move down along valve body 4, threaded rod 1 moves and drives fixed block 2 to move, fixed block 2 moves and drives second spring 10 to move, second spring 10 moves and drives connecting rod 9 to move, connecting rod 9 moves and drives first spring 8 to move down, first spring 8 moves down and drives sealing valve seat 7 and sealing gasket 6 to move down, when sealing gasket 6 contacts with the surface of the inner chamber of valve body 4, under the continuous rotation of threaded rod 1, first spring 8 and second spring 10 all produce elastic deformation, can make sealing valve seat 7 and sealing gasket 6 a relative effort simultaneously, make sealing gasket 6 hug closely the internal surface of valve body 4, reach sealed effect, when one of them spring damages, lead to the sealed effect to lose efficacy, can continue to rotate threaded rod 1 and move down, under the action force of another useful spring, the sealing gasket 6 can be tightly attached to the inner surface of the valve body 4 to achieve the sealing effect again, so that the valve body 4 still can achieve a good sealing effect when one of the springs is damaged, the service life of the valve body 4 is prolonged, and the cost caused by the damage of the valve body 4 is reduced.

Claims

1. Open formula threaded connection relief valve entirely, including valve body (4), its characterized in that: the middle-end threaded connection at valve body (4) top has threaded rod (1), there is fixed block (2) bottom of threaded rod (1) through bearing swing joint, the bottom fixedly connected with second spring (10) of fixed block (2), the bottom fixedly connected with connecting rod (9) of second spring (10), the first spring of bottom fixedly connected with (8) of connecting rod (9), the sealed disk seat (7) of the bottom fixedly connected with of first spring (8), and the surface swing joint of sealed disk seat (7) in the internal surface of connecting rod (9), the sealed pad (6) of the bottom fixedly connected with of sealed disk seat (7), and the bottom swing joint of sealed pad (6) in the surface of valve body (4) inner chamber.

2. The full start threaded connection safety valve of claim 1, wherein: the bottom of valve body (4) is provided with air inlet (5), the lower extreme of valve body (4) surface is provided with thread groove (14).

3. The full start threaded connection safety valve of claim 2, wherein: the periphery of the surface of the valve body (4) is provided with vent holes (3), and the vent holes (3) are rectangular.

4. The full start threaded connection safety valve of claim 3, wherein: the upper end fixedly connected with product label (12) on valve body (4) positive surface, bleeder vent (13) have been seted up to the middle-end on valve body (4) positive surface.

5. The full start threaded connection safety valve of claim 4, wherein: the upper end of the threaded rod (1) is movably connected with a stress ring (11), and the specification of the stress ring (11) is six millimeters at two points.