CN203560542U

CN203560542U - Novel spring one-way valve

Info

Publication number: CN203560542U
Application number: CN201320492028.2U
Authority: CN
Inventors: 谢名锋; 周超光; 陈超男
Original assignee: HUIHUANG PLUMBING GROUP CO Ltd
Current assignee: HUIHUANG PLUMBING GROUP CO Ltd
Priority date: 2013-08-13
Filing date: 2013-08-13
Publication date: 2014-04-23
Anticipated expiration: 2023-08-13

Abstract

The utility model puts forward a novel spring one-way valve. The novel spring one-way valve comprises a valve body and a valve cover. The valve body and the valve cover are of an integral structure. A valve core comprises a valve clack, springs, a rubber gasket and a pressing ring. The springs are arranged outside the valve clack in a sleeving mode and are arranged between the pressing ring and the rubber gasket in an expanding mode. The springs are tapered springs which become thicker from the pressing ring to the rubber gasket. The pressing ring is slidably connected with the valve clack via a guiding hole. The position of the guiding hole, corresponding to the valve clack, of the pressing ring is provided with a guiding flange. The pressing ring is in threaded connection with the valve cover. By adoption of the above technical scheme, the novel spring one-way valve has following beneficial effects: defects including complicated operation and fluid leakage-prone due to poor sealing performance produced by the fact that the conventional valve body of the spring one-way valve is connected with the valve cover by threads or glue are overcome; and compared with the conventional spring one-way valve, the novel spring one-way valve is concise in operation, high in sealing capability, simple and reasonable in structure and high in practicality and is capable of effectively preventing fluid from leaking.

Description

A kind of novel spring safety check

Technical field

The utility model relates to valve structure field, is specifically related to a kind of novel spring safety check that can effectively avoid fluid leakage situation to occur.

Background technique

Safety check (One-way valve) claims that again check valve, one-way valve or check valve, its effect are to guarantee flowing medium directional flow in pipeline and unlikely refluence.The bottom valve of for example water pump suction pipe also belongs to the one of safety check.

The valve body structure of traditional safety check roughly comprises valve body and valve gap, as Chinese utility model patent CN201120129194.7 proposes a kind of safety check, comprise valve gap and valve seat (valve body), female valve gap is set to be enclosed within and to be provided with on externally threaded valve seat, the inside of valve gap is cavity, in valve seat, be provided with gas channel, the cavity of described valve gap inside is provided with valve plate, valve plate one side is connected with spring, described valve plate another side is connected with an end face of valve seat, on described valve plate, be provided with the pore of inclination, one end outlet of described pore is positioned at the center of valve plate, the other end outlet is connected with an end face of valve seat.The valve body structure formula of this model utility is threaded connection rear formation by valve body and valve gap, in actual use, between valve body and valve gap often because sealing the situations such as fluid leakage that occur not in place, had a strong impact on the normal work of safety check, and complex structure, its practicability has been subject to certain restriction.On market, also there is the scheme that connects valve body and valve gap by modes such as glue, as shown in Figure 1, comprise valve body 1 ' and pass through glue valve gap 2 ' cemented together with valve body 1 ', spool 3 ' is equipped with in inside, but this scheme also all there will be the problems referred to above equally, not from solving check valve body complex structure, the problem that sealing is poor with this.

Given this, this case inventor further investigate the problems referred to above, then has this case to produce.

Model utility content

The purpose of this utility model is to provide a kind of operation succinct, and sealing is strong, and the novel spring safety check that can effectively avoid the situations such as fluid leakage to occur is simple and reasonable, practical.

In order to achieve the above object, the utility model adopts such technological scheme:

A kind of novel spring safety check, comprises that valve body, valve gap and dress close valve body and described valve gap described in the spool in the two and be structure as a whole; Described spool comprises flap, spring, rubber sheet gasket and trim ring; Described spring dress is used for outside described flap, and opens and be located between described trim ring and described rubber sheet gasket; Described spring is served as reasons described trim ring to the described rubber sheet gasket volute spring of chap gradually; Described trim ring is slidably connected by pilot hole and described flap, and described trim ring is provided with guide rib at the described pilot hole place described flap of correspondence; Described trim ring and described valve gap are threaded togather.

Adopt after technique scheme, novel spring safety check of the present utility model, break through the structural form of conventional springs safety check, itself and the corresponding valve body of conventional springs safety check and valve gap are structure as a whole, overcome conventional springs safety check need by the Placement such as screw thread or gummed connect complex procedures that valve body and valve gap bring and sealing poor and the defects such as fluid leakage easily occur, compared with prior art, novel spring safety check of the present utility model, its operation is succinct, sealing is strong, can effectively avoid the situations such as fluid leakage to occur, simple and reasonable, practical.

Accompanying drawing explanation

Fig. 1 is the cross-sectional schematic of existing spring-loaded check valve;

Fig. 2 is the sectional structure schematic diagram of valve body structure;

Fig. 3 is the cross-sectional schematic of the utility model spring-loaded check valve.

In figure:

1 '-valve body 2 '-valve gap

3 '-spool

1-valve body 2-valve gap

3-spool 31-flap

32-spring 33-rubber sheet gasket

34-trim ring

Embodiment

In order further to explain, be described in detail the technical solution of the utility model below by specific embodiment.

A kind of novel spring safety check of the present utility model, as Figure 2-3, comprises valve body 1 and valve gap 2.

Improvements are, valve body 1 is structure as a whole with valve gap 2, and spool 3 comprises flap 31, spring 32, rubber sheet gasket 33 and trim ring 34; Spring 32 is set in outside flap 31, and opens and be located between trim ring 34 and rubber sheet gasket 33; Spring 32 is to rubber sheet gasket 33 volute spring of chap gradually by trim ring 34; Trim ring 34 is slidably connected by pilot hole and flap 31, and trim ring 34 is provided with guide rib at described pilot hole place correspondence flap 31; Trim ring 34 is threaded togather with valve gap 2, overcome conventional springs safety check need by the Placements such as screw thread or gummed connect complex procedures that valve body and valve gap bring and sealing poor and the defects such as fluid leakage easily occur.

Novel spring safety check of the present utility model, spool is existing spring-loaded check valve valve core structure, concrete structure can be adjusted and design according to actual requirement, and can be and coordinate the technical solution of the utility model and do adaptive structural adjustment; Valve body and valve gap are an overall structure, as being formed in one, there is not in actual use obvious valve body and valve gap structure and the boundary structure of the two, the utility model, just for the ease of public understanding, is equal to the valve body of existing valve body structure and the description of valve gap function and adopted.

Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable variation or the modification of similar thinking to it, all should be considered as not departing from patent category of the present utility model.

Claims

1. a novel spring safety check, comprises that valve body, valve gap and dress close the spool in the two; Described valve body and described valve gap are structure as a whole; It is characterized in that: described spool comprises flap, spring, rubber sheet gasket and trim ring; Described spring housing is loaded on outside described flap, and opens and be located between described trim ring and described rubber sheet gasket; Described spring is served as reasons described trim ring to the described rubber sheet gasket volute spring of chap gradually; Described trim ring is slidably connected by pilot hole and described flap, and described trim ring is provided with guide rib at the described pilot hole place described flap of correspondence; Described trim ring and described valve gap are threaded togather.