CN213629054U

CN213629054U - Check valve with good sealing performance and simple structure

Info

Publication number: CN213629054U
Application number: CN202021957159.XU
Authority: CN
Inventors: 尚良品; 张广才
Original assignee: Anhui Zongheng Pump & Valve Manufacturing Co ltd
Current assignee: Anhui Zongheng Pump & Valve Manufacturing Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-07-06
Anticipated expiration: 2030-09-09

Abstract

The utility model relates to the technical field of check valves, in particular to a check valve with good sealing performance and simple structure, which comprises a valve body, wherein a vertical partition plate is welded at the bottom of an inner cavity of the valve body, a transverse partition plate is welded at the left side of the vertical partition plate, the left side of the transverse partition plate is welded with the inner wall of the valve body, a hollow pipe is welded at the top of the inner cavity of the valve body, the inner cavity of the hollow pipe is in rolling connection with a ball, and a sealing platform is fixedly arranged at the bottom of the; the utility model discloses a valve body, erect baffle, cross slab, hollow tube, ball, sealed platform, lead to the setting of groove and ejecting subassembly, make the check valve possess the advantage that simple structure fault rate is low, solved current check valve simultaneously and mainly divided into over-and-under type, swing formula and butterfly, but the defect that the structure is comparatively complicated all exists in the check valve above, and the inside of valve includes too much subassembly, in long-time use, the too much problem that increases the fault rate easily of subassembly.

Description

Check valve with good sealing performance and simple structure

Technical Field

The utility model relates to a check valve technical field specifically is a simple structure's check valve is good to leakproofness.

Background

The check valve is a valve whose opening and closing part is a circular valve clack and acts by its own weight and medium pressure to block the medium from flowing backwards, and belongs to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve.

The existing check valve mainly comprises a lifting type check valve, a swing type check valve and a butterfly type check valve, but the check valve has the defect of complicated structure, the valve comprises too many components, and the failure rate is increased easily due to too many components in the long-time use process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure's check valve is good to leakproofness possesses the advantage that simple structure fault rate is low, has solved current check valve and has mainly divided into over-and-under type, swing formula and butterfly, but above check valve all has the comparatively complicated defect of structure, and the inside of valve includes too much subassembly, in long-time use, the too much problem that increases the fault rate easily of subassembly.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a good simple structure's of leakproofness check valve, includes the valve body, the bottom welding of valve body inner chamber has perpendicular baffle, the left side welding of perpendicular baffle has the cross slab, the left side of cross slab and the inner wall welding of valve body, the top welding of valve body inner chamber has the hollow tube, the inner chamber roll connection of hollow tube has the ball, the bottom fixed mounting in hollow tube inner chamber has the sealed platform, logical groove has been seted up to the surface of hollow tube and the top that is located the cross slab, the bottom of hollow tube runs through the cross slab and extends to the below of cross slab, the bottom welding of valve body has ejecting subassembly.

Preferably, the sealing platform is arranged in a hollow mode, and a sealing ring is fixedly installed at the top of the sealing platform.

Preferably, ejecting subassembly includes the accessory box, the top of accessory box and the bottom welding of valve body, the bottom welding of accessory box has last mounting disc, the bottom bolt joint of going up the mounting disc has down the mounting disc, the inner chamber of accessory box is provided with the roof, the center department welding at roof top has the ejector pin, the top of ejector pin runs through accessory box and valve body in proper order and extends to the inner chamber of valve body, the ejector pin is located the ball under.

Preferably, the surface cover of ejector pin is equipped with the spring, the bottom of spring and the top welding of roof, the top of spring and the top welding of accessory box.

Preferably, a sealing sleeve is arranged at the joint of the ejector rod, the valve body and the accessory box, the surface of the sealing sleeve is fixedly installed on the inner wall of the valve body, and the inner cavity of the sealing sleeve is in sliding connection with the surface of the ejector rod.

Preferably, the two sides of the valve body are welded with flange plates, and the bottom of the upper mounting plate and the top of the lower mounting plate are fixedly provided with sealing gaskets.

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

1. the utility model discloses a valve body, erect baffle, cross slab, hollow tube, ball, sealed platform, lead to the setting of groove and ejecting subassembly, make the check valve possess the advantage that simple structure fault rate is low, solved current check valve simultaneously and mainly divided into over-and-under type, swing formula and butterfly, but the defect that the structure is comparatively complicated all exists in the check valve above, and the inside of valve includes too much subassembly, in long-time use, the too much problem that increases the fault rate easily of subassembly.

2. The utility model discloses a setting of sealing washer can carry out the shutoff to the gap between ball and the seal land to increase the leakproofness between ball and the seal land, through the setting of ejecting subassembly, can be when the check valve needs backward flow, with ball jack-up, thereby can make the fluid from hollow tube department backward flow, with satisfy different user demands, through the setting of spring, can apply decurrent effort to the roof, prevent that the ejector pin from jacking the ball under the condition of no external force.

3. The utility model discloses a setting of seal cover can seal the junction of ejector pin and valve body and accessory box, prevents that the fluid from leaking, and the setting of ring flange can make things convenient for this check valve to be connected with the pipeline, and the setting of sealed pad can increase the leakproofness between mounting disc and the lower mounting disc.

Drawings

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

FIG. 2 is a schematic view of the three-dimensional structure of the hollow tube of the present invention;

FIG. 3 is a front sectional view of the hollow tube of the present invention;

FIG. 4 is a schematic perspective view of the sphere and the sealing table of the present invention;

fig. 5 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a vertical partition plate; 3. a diaphragm plate; 4. a hollow tube; 5. a ball; 6. a sealing table; 7. a through groove; 8. ejecting the assembly; 81. an accessory case; 82. an upper mounting plate; 83. a lower mounting plate; 84. a top plate; 85. a top rod; 9. a seal ring; 10. a spring; 11. sealing sleeves; 12. a flange plate; 13. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a check valve with good sealing performance and simple structure comprises a valve body 1, wherein a vertical partition plate 2 is welded at the bottom of an inner cavity of the valve body 1, a transverse partition plate 3 is welded at the left side of the vertical partition plate 2, the left side of the transverse partition plate 3 is welded with the inner wall of the valve body 1, a hollow tube 4 is welded at the top of the inner cavity of the valve body 1, a round ball 5 is connected with the inner cavity of the hollow tube 4 in a rolling manner, a sealing table 6 is fixedly installed at the bottom of the inner cavity of the hollow tube 4, a through groove 7 is formed in the surface of the hollow tube 4 and positioned above the transverse partition plate 3, the bottom end of the hollow tube 4 penetrates through the transverse partition plate 3 and extends to the lower side of the transverse partition plate 3, an ejection assembly 8 is welded at the bottom of the valve body 1, the vertical partition plate 2, the transverse partition plate 3, the hollow tube 4, the round, Swing formula and butterfly, but above check valve all has the comparatively complicated defect of structure, and the inside of valve contains too much subassembly, in long-time use, the too much problem that increases the fault rate easily of subassembly.

In this embodiment, specifically, the sealing table 6 is a hollow structure, the sealing ring 9 is fixedly installed at the top of the sealing table 6, and the sealing ring 9 is arranged to block a gap between the ball 5 and the sealing table 6, so as to increase the sealing performance between the ball 5 and the sealing table 6.

In this embodiment, it is specific, ejecting subassembly 8 includes accessory box 81, the top of accessory box 81 and the bottom welding of valve body 1, the bottom welding of accessory box 81 has last mounting disc 82, the bottom bolt of going up mounting disc 82 has lower mounting disc 83, the inner chamber of accessory box 81 is provided with roof 84, the welding of center department at roof 84 top has ejector pin 85, the top of ejector pin 85 runs through accessory box 81 and valve body 1 in proper order and extends to the inner chamber of valve body 1, ejector pin 85 is located ball 5 under, setting through ejecting subassembly 8, can be when the check valve needs the backward flow, jack-up ball 5, thereby can make the fluid follow the backward flow of hollow tube 4 department, in order to satisfy different user demands.

In this embodiment, specifically, the surface of the ejector rod 85 is sleeved with the spring 10, the bottom end of the spring 10 is welded to the top of the top plate 84, the top end of the spring 10 is welded to the top of the accessory box 81, and the spring 10 is arranged to apply a downward acting force to the top plate 84, so that the ejector rod 85 is prevented from ejecting the sphere 5 without an external force.

In this embodiment, specifically, a sealing sleeve 11 is disposed at a joint of the ejector rod 85 and the valve body 1 and the accessory box 81, a surface of the sealing sleeve 11 is fixedly mounted on an inner wall of the valve body 1, an inner cavity of the sealing sleeve 11 is slidably connected with a surface of the ejector rod 85, and the joint of the ejector rod 85 and the valve body 1 and the accessory box 81 can be sealed by the arrangement of the sealing sleeve 11, so as to prevent fluid leakage.

In this embodiment, specifically, the ring flange 12 has all been welded to the both sides of valve body 1, goes up the equal fixed mounting in bottom of mounting disc 82 and the top of mounting disc 83 down and has sealed the pad 13, and the setting of ring flange 12 can make things convenient for this check valve to be connected with the pipeline, and the setting of sealed pad 13 can increase the leakproofness between mounting disc 82 and the lower mounting disc 83.

The working principle is as follows: the main core structure of this check valve is only three, and one is hollow tube 4, and its two balls 5, its three are sealed platform 6, and this three core component all adopts the alloy material to make to guarantee its life, the non return principle of check valve as follows: the left side of the valve body 1 is communicated with a water inlet pipeline, the right side of the valve body is communicated with a water outlet pipeline, when fluid enters the valve body 1, the fluid can only enter the inner cavity of the hollow pipe 4 from the bottom of the hollow pipe 4 due to the obstruction of the vertical partition plate 2 and the transverse partition plate 3, the ball 5 can be jacked up when the fluid enters the inner cavity of the hollow pipe 4, meanwhile, the ball 5 gradually rises to the position of the through groove 7, the fluid below the ball 5 can flow out through the through groove 7, when the fluid flows backwards, downward thrust can be applied to the ball 5, the thrust can push the ball 5 to be tightly attached to the sealing table 6, so that an outlet below the hollow pipe 4 is plugged, the backflow prevention function is achieved, when the device needs to flow backwards in actual use, the bolt at the bottom of the lower mounting disc 83 is unscrewed, the lower mounting disc 83 is taken down, and promote roof 84 and make it drive ejector pin 85 rebound, ejector pin 85 can enter into the inside of hollow tube 4 through the export of hollow tube 4 below and jack up ball 5 to make fluid flow out from the export of hollow tube 4 below, this check valve simple structure, sealing performance is excellent, and application range is wide, is worth promoting very much.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machinery, parts and equipment adopt the conventional models in the prior art, and the structure and principle of the parts known by the skilled person can be known by the technical manual or by the conventional experimental method.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a good simple structure's of leakproofness check valve, includes valve body (1), its characterized in that: the welding of the bottom of valve body (1) inner chamber has perpendicular baffle (2), the welding of the left side of erecting baffle (2) has cross slab (3), the left side of cross slab (3) and the inner wall welding of valve body (1), the welding of the top of valve body (1) inner chamber has hollow tube (4), the inner chamber roll connection of hollow tube (4) has ball (5), the bottom fixed mounting of hollow tube (4) inner chamber has seal platform (6), logical groove (7) have been seted up on the surface of hollow tube (4) and the top that is located cross slab (3), the bottom of hollow tube (4) runs through cross slab (3) and extends to the below of cross slab (3), the bottom welding of valve body (1) has ejecting subassembly (8).

2. The check valve with good sealing performance and simple structure as claimed in claim 1, wherein: the sealing platform (6) is arranged in a hollow mode, and a sealing ring (9) is fixedly mounted at the top of the sealing platform (6).

3. The check valve with good sealing performance and simple structure as claimed in claim 1, wherein: ejecting subassembly (8) are including accessory box (81), the top of accessory box (81) and the bottom welding of valve body (1), the bottom welding of accessory box (81) has last mounting disc (82), the bottom bolt of going up mounting disc (82) has lower mounting disc (83), the inner chamber of accessory box (81) is provided with roof (84), the center department welding at roof (84) top has ejector pin (85), the top of ejector pin (85) runs through accessory box (81) and valve body (1) in proper order and extends to the inner chamber of valve body (1), ejector pin (85) are located ball (5) under.

4. A good sealing and simple structure check valve as claimed in claim 3, wherein: the surface cover of ejector pin (85) is equipped with spring (10), the bottom of spring (10) and the top welding of roof (84), the top of spring (10) and the top welding of accessory box (81).

5. A good sealing and simple structure check valve as claimed in claim 3, wherein: the connecting part of the ejector rod (85) and the valve body (1) and the accessory box (81) is provided with a sealing sleeve (11), the surface of the sealing sleeve (11) is fixedly installed on the inner wall of the valve body (1), and the inner cavity of the sealing sleeve (11) is in sliding connection with the surface of the ejector rod (85).

6. A good sealing and simple structure check valve as claimed in claim 3, wherein: the two sides of the valve body (1) are welded with flange plates (12), and the bottom of the upper mounting plate (82) and the top of the lower mounting plate (83) are fixedly provided with sealing gaskets (13).