CN217683408U

CN217683408U - Vertical check valve

Info

Publication number: CN217683408U
Application number: CN202220104628.6U
Authority: CN
Inventors: 崔贵有
Original assignee: Individual
Current assignee: Cixi Weida Plastic Products Co ltd
Priority date: 2022-01-15
Filing date: 2022-01-15
Publication date: 2022-10-28
Anticipated expiration: 2032-01-15

Abstract

The utility model discloses a vertical check valve, which comprises a valve body, the bottom welding of valve body inner wall has the docking ring, the top swing joint of valve body inner wall has the support frame, the filter screen is installed to the inner wall of support frame, the through-hole has been seted up on the surface of support frame, the bottom of support frame is run through and is provided with the valve rod, be provided with the sealing washer between valve rod and the support frame, the surface of valve rod is installed respectively and is cleared up the subassembly and sealed subassembly of righting, the surface activity cover of valve rod is equipped with the spring. The utility model provides a current vertical check valve can not filter flowing water in the use mostly, because service life is all longer, can produce water rust or corrosives at the valve body inner wall, consequently rivers do not filter when carrying and can lead to the water source unclean, and spring direct contact fluid makes its life shorten simultaneously to the mechanism is right to the valve rod unguided, leads to the problem that the check valve can not seal easily.

Description

Vertical check valve

Technical Field

The utility model relates to a check valve technical field specifically is a vertical check valve.

Background

The check valve has the functions of only allowing a medium to flow in one direction and preventing the medium from flowing in the opposite direction, is divided into three types according to the structure, namely a lifting check valve, a swing check valve and a butterfly check valve, wherein the lifting check valve can be divided into two types, namely a vertical type and a straight-through type, the swing check valve is divided into three types, namely a single-flap type, a double-flap type and a multi-flap type, the butterfly check valve is a butterfly double-flap type, a butterfly single-flap type, and the check valves can be divided into four types, namely threaded connection, flange connection, welding and butt clamp connection, in the connection mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vertical check valve, possess and filter, the clearance, avoid spring direct contact fluid and valve rod direction to right the advantage, solved current vertical check valve and can not filter the flowing water in the use by a wide margin, because service life is all longer, can produce the scaling or corrosives at the valve body inner wall, consequently rivers do not filter when carrying and can lead to the water source unclean, spring direct contact fluid makes its life shorten simultaneously, and the valve rod does not have the direction and rights the mechanism, lead to the problem that the check valve can not seal easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a vertical check valve, includes the valve body, the bottom welding of valve body inner wall has the butt ring, the top swing joint of valve body inner wall has the support frame, the filter screen is installed to the inner wall of support frame, the through-hole has been seted up on the surface of support frame, the bottom of support frame is run through and is provided with the valve rod, be provided with the sealing washer between valve rod and the support frame, the surface of valve rod is installed respectively and is cleared up the subassembly and seal the subassembly of rightting, the movable cover in surface of valve rod is equipped with the spring, the bottom welding of valve rod has the valve block, the bottom fixedly connected with seal cover of valve block.

Preferably, the clearance subassembly includes the bull stick, the top at the valve rod is inlayed through the bearing activity to the one end of bull stick, the top welding of bull stick has the cleaning brush, the skin weld of bull stick has the blade.

Preferably, the sealed subassembly of righting includes the inner tube, the top of inner tube and the bottom welding of support frame, the surface cover of inner tube is equipped with the urceolus, the guide way has been seted up to the inner wall of urceolus, the fixed surface of inner tube is connected with the sealed piece of direction, the inner chamber of guide way is extended to one side of the sealed piece of direction, the bottom of urceolus and the top welding of valve block, the both ends of spring contact with the bottom of support frame and the inner wall of urceolus respectively.

Preferably, the top and the bottom of the valve body are both provided with mounting holes, and the inner wall of the support frame is welded with a pull plate.

Preferably, the top activity of support frame is inlayed and is connected with top clamping ring, the surface activity cover of support frame is equipped with the gasket, the surface of gasket contacts with the inner wall of valve body.

Preferably, the outer surface of the sealing ring is fixedly connected with the surface of the supporting frame, and the surface of the valve rod is connected with the inner wall of the sealing ring in a sliding mode.

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

1. the utility model discloses a valve body, the butt joint ring, the support frame, the filter screen, the through-hole, the valve rod, the sealing washer, the clearance subassembly, sealed subassembly of rightting, a spring, valve block and seal cover cooperate, possess and filter, the clearance, avoid the advantage that spring direct contact fluid and valve rod direction are right, it can not filter the flowing water to have solved current vertical check valve in the use mostly, because the service life is all longer, can produce the scaling or corrosives at the valve body inner wall, consequently rivers do not filter when carrying and probably lead to the water source unclean, spring direct contact fluid makes its life shorten simultaneously, and the valve rod does not have the direction mechanism of righting, lead to the problem that the check valve can not seal easily.

2. The utility model discloses a set up bull stick, clearance brush and blade, can clear up filter screen surface adnexed impurity, through setting up inner tube, urceolus, guide way and the sealed piece of direction, lead to the valve rod and right, avoid the seal cover on the valve block can't be sealed with the butt joint of butt joint ring, shelter from the spring simultaneously, avoid its direct contact fluid, make its life shorten.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic perspective view of the support frame and the sealing sleeve of the present invention;

FIG. 4 is a perspective enlarged view of the cleaning assembly of the present invention;

FIG. 5 is a schematic perspective view of the top clamping ring and the gasket according to the present invention;

fig. 6 is a schematic view of the sealing and centering assembly according to the present invention.

In the figure: the device comprises a valve body 1, a butt joint ring 2, a support frame 3, a filter screen 4, a through hole 5, a valve rod 6, a sealing ring 7, a cleaning assembly 8, a rotating rod 81, a cleaning brush 82, a blade 83, a sealing and centering assembly 9, an inner cylinder 91, an outer cylinder 92, a guide groove 93, a guide sealing block 94, a spring 10, a valve plate 11, a sealing sleeve 12, a mounting hole 13, a pulling plate 14, a jacking ring 15 and a gasket 16.

Detailed Description

Referring to fig. 1-6, a vertical check valve comprises a valve body 1, wherein a butt ring 2 is welded at the bottom of the inner wall of the valve body 1, a support frame 3 is movably connected at the top of the inner wall of the valve body 1, a filter screen 4 is installed on the inner wall of the support frame 3, a through hole 5 is formed in the surface of the support frame 3, a valve rod 6 is arranged at the bottom of the support frame 3 in a penetrating manner, a seal ring 7 is arranged between the valve rod 6 and the support frame 3, a cleaning assembly 8 and a seal centering assembly 9 are respectively installed on the surface of the valve rod 6, a spring 10 is movably sleeved on the surface of the valve rod 6, a valve plate 11 is welded at the bottom of the valve rod 6, and a seal sleeve 12 is fixedly connected at the bottom of the valve plate 11;

the cleaning assembly 8 comprises a rotating rod 81, one end of the rotating rod 81 is movably embedded at the top of the valve rod 6 through a bearing, a cleaning brush 82 is welded at the top of the rotating rod 81, a blade 83 is welded on the surface of the rotating rod 81, and impurities attached to the surface of the filter screen 4 can be cleaned through the rotating rod 81, the cleaning brush 82 and the blade 83;

the sealing and centering assembly 9 comprises an inner cylinder 91, the top of the inner cylinder 91 is welded with the bottom of the support frame 3, the surface of the inner cylinder 91 is sleeved with an outer cylinder 92, the inner wall of the outer cylinder 92 is provided with a guide groove 93, the surface of the inner cylinder 91 is fixedly connected with a guide sealing block 94, one side of the guide sealing block 94 extends to the inner cavity of the guide groove 93, the bottom of the outer cylinder 92 is welded with the top of the valve plate 11, two ends of the spring 10 are respectively contacted with the bottom of the support frame 3 and the inner wall of the outer cylinder 92, the valve rod 6 is guided and centered by arranging the inner cylinder 91, the outer cylinder 92, the guide groove 93 and the guide sealing block 94, the sealing sleeve 12 on the valve plate 11 is prevented from being in butt joint sealing with the butt joint ring 2, meanwhile, the spring 10 is shielded, direct contact with fluid is avoided, and the service life of the spring is shortened;

mounting holes 13 are formed in the top and the bottom of the valve body 1, a pulling plate 14 is welded on the inner wall of the support frame 3, the check valve is conveniently connected with a pipeline through the mounting holes 13, and components in the valve body 1 are conveniently pulled out for cleaning or replacing through the pulling plate 14;

the top of the support frame 3 is movably embedded and connected with a top pressure ring 15, a gasket 16 is movably sleeved on the surface of the support frame 3, the surface of the gasket 16 is in contact with the inner wall of the valve body 1, and the sealing performance of the check valve when the check valve is connected with a pipeline is improved by arranging the top pressure ring 15 and the gasket 16;

the surface fixed connection of sealing washer 7's surface and support frame 3, the surface of valve rod 6 and the inner wall sliding connection of sealing washer 7 through setting up sealing washer 7, seals between support frame 3 and the valve rod 6, avoids the fluid to enter into in the sealed subassembly 9 of rightting.

When the valve is used, liquid enters the valve body 1 through the bottom end of the valve body 1 and impacts the sealing sleeve 12, the sealing sleeve 12 drives the valve plate 11 and the valve rod 6 to move upwards and compress the spring 10 when being impacted, meanwhile, the valve plate 11 drives the outer cylinder 92 to move on the surface of the inner cylinder 91, the outer cylinder 92 and the valve rod 6 are guided under the action of the guide groove 93 and the guide sealing block 94, the sealing sleeve 12 on the valve plate 11 is accurately abutted to the abutting ring 2 to be sealed when falling back, the valve rod 6 moves upwards to drive the rotating rod 81, the cleaning brush 82 and the blades 83 to move upwards, the cleaning brush 82 is in contact with the surface of the filter screen 4, the liquid enters the support frame 3 through the through holes 5 and is filtered and discharged out of the valve body 1 through the filter screen 4, the rotating blade 83 is driven to rotate when the flowing liquid passes through the support frame 3, the rotating rod 81 and the cleaning brush 82 are further driven to rotate, the surface of the filter screen 4 is cleaned, and when backflow or flow rate is reduced, the valve rod 6, the valve plate 11 and the sealing sleeve 12 are pushed to move downwards to seal the valve body 1 through the elastic force of the spring 10.

In summary, the following steps: this vertical check valve, through valve body 1, butt-joint ring 2, support frame 3, filter screen 4, through-hole 5, valve rod 6, sealing washer 7, cleaning assembly 8, sealed subassembly 9 of righting, spring 10, valve block 11 and seal cover 12 cooperate, it can not filter the flowing water to have solved current vertical check valve in the use by a wide margin, because the service life is all longer, can produce water rust or corrosives at the valve body inner wall, consequently rivers do not filter when carrying and probably lead to the water source unclean, spring direct contact fluid makes its life shorten simultaneously, and the mechanism is right to the valve rod nothing direction, lead to the problem that the check valve can not seal easily.

Claims

1. A vertical check valve, includes valve body (1), its characterized in that: the welding of the bottom of valve body (1) inner wall has butt ring (2), the top swing joint of valve body (1) inner wall has support frame (3), filter screen (4) are installed to the inner wall of support frame (3), through-hole (5) have been seted up on the surface of support frame (3), the bottom of support frame (3) is run through and is provided with valve rod (6), be provided with between valve rod (6) and support frame (3) sealing washer (7), clearance subassembly (8) and sealed subassembly (9) of righting are installed respectively to the surface of valve rod (6), the surface activity cover of valve rod (6) is equipped with spring (10), the bottom welding of valve rod (6) has valve block (11), the bottom fixedly connected with seal cover (12) of valve block (11).

2. A vertical check valve as defined in claim 1 wherein: clearance subassembly (8) are including bull stick (81), the top at valve rod (6) is inlayed through the bearing activity to the one end of bull stick (81), the top welding of bull stick (81) has cleaning brush (82), the skin weld of bull stick (81) has blade (83).

3. A vertical check valve as set forth in claim 1 wherein: sealed subassembly (9) of righting includes inner tube (91), the top of inner tube (91) and the bottom welding of support frame (3), the surface cover of inner tube (91) is equipped with urceolus (92), guide way (93) have been seted up to the inner wall of urceolus (92), the fixed surface of inner tube (91) is connected with sealed piece of direction (94), the inner chamber of guide way (93) is extended to one side of sealed piece of direction (94), the bottom of urceolus (92) and the top welding of valve block (11), the both ends of spring (10) contact with the inner wall of the bottom of support frame (3) and urceolus (92) respectively.

4. A vertical check valve as set forth in claim 1 wherein: mounting holes (13) are formed in the top and the bottom of the valve body (1), and pull plates (14) are welded on the inner wall of the support frame (3).

5. A vertical check valve as defined in claim 1 wherein: the top activity of support frame (3) is inlayed and is connected with top clamping ring (15), the surface activity cover of support frame (3) is equipped with gasket (16), the surface of gasket (16) contacts with the inner wall of valve body (1).

6. A vertical check valve as defined in claim 1 wherein: the outer surface of the sealing ring (7) is fixedly connected with the surface of the support frame (3), and the surface of the valve rod (6) is connected with the inner wall of the sealing ring (7) in a sliding mode.