CN210372175U

CN210372175U - Air suction valve

Info

Publication number: CN210372175U
Application number: CN201921203785.7U
Authority: CN
Inventors: 王雪飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-21
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to an air suction valve relates to a valve, belongs to pipeline accessory technical field, and it includes valve body, valve rod and valve gap, be provided with the suction channel on the valve gap, just the valve gap sets up in valve body one end, the cover is equipped with reset spring on the valve rod, just the valve rod is located between valve body and the valve gap, a tip that the valve rod is close to the valve gap is provided with the separation blade, reset spring's one end is supported on the separation blade, and the other end supports and leans on in the valve body, be provided with the gasket that is used for sealed suction channel on the gasket, the gasket supports constantly on suction channel with the help of reset spring's elasticity, the utility model aims at providing an overall structure is simple, and regulation performance is good, makes simple and simple to operate.

Description

Air suction valve

Technical Field

The utility model belongs to the technical field of the pipe fitting, a valve is related to, refer in particular to an inspiratory valve.

Background

The suction valve is a safety valve, and its mainly used container or water supply pipe, when pipeline and container produced negative pressure or vacuum because of system operation or stopped, this suction valve can open automatically, can destroy vacuum and negative pressure effect, and protection pipeline and other equipment are unlikely to produce phenomenons such as flat, the concave crack, are used for the safety of protection equipment, and the suction valve wide application is in fields such as drainage, dock, power plant, shipbuilding, probably satisfies the demand of most operating modes. When the traditional air suction valve is used, the adjusting performance is poor, the whole structure is complex, and the air suction valve is difficult to install and manufacture.

Disclosure of Invention

The utility model aims at providing an overall structure is simple, and the regulation performance is good, makes simple and simple to operate's suction valve.

The purpose of the utility model is realized like this:

the utility model provides a suction valve, includes valve body, valve rod and valve gap, be provided with the passageway of breathing in on the valve gap, just the valve gap sets up in valve body one end, the cover is equipped with reset spring on the valve rod, just the valve rod is located between valve body and the valve gap, a tip that the valve rod is close to the valve gap is provided with the separation blade, reset spring's one end is supported on the separation blade, and the other end supports and leans on in the valve body, be provided with the gasket that is used for sealed passageway of breathing in on the baffle, the gasket supports constantly on the passageway of breathing in.

In the above air suction valve, the valve body is internally and integrally formed with a limiting frame, the limiting frame is provided with a connecting hole for the valve rod to pass through, one end of the reset spring is abutted against the limiting frame, and the other end of the reset spring is abutted against the baffle.

In the above-mentioned suction valve, a step portion is provided on the valve rod, and the step portion is provided at an end close to the limiting frame.

According to the air suction valve, the sealing sheet is provided with the limiting sheet, a sealing sheet placing groove is formed between the limiting sheet and the blocking sheet, and the sealing sheet is located in the sealing sheet placing groove.

In the above-mentioned air suction valve, the limiting piece and the valve rod are of an integrally formed structure.

In the above-mentioned suction valve, the diameter of the stopper piece is smaller than the diameter of the suction passage.

In the above air suction valve, the baffle is provided with a positioning boss, and one end of the return spring is sleeved on the positioning boss.

In the above suction valve, the valve body and the valve cover are connected together in a threaded connection manner.

In the above air suction valve, the valve cover is provided with anti-slip threads for facilitating the unscrewing or screwing of the valve cover.

In the above suction valve, the other end of the valve body is provided with a thread, and an outer hexagon convenient for dismounting the valve body is arranged at one end close to the thread.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model discloses simple structure, through the valve body, the valve rod, the valve gap, an air suction valve is constituteed to reset spring and gasket, it is simple to make, the gasket can support constantly at the inspiratory channel of valve gap with the help of reset spring's elasticity, can guarantee the sealing performance in its pipeline like this, form vacuum or negative pressure in the pipeline, outside air can inwards promote gasket and valve rod, in the outside air can get into the pipeline, destroy vacuum or the negative pressure phenomenon in the pipeline, it is the installation of the convenient air suction valve to be provided with outer hexagonal on the valve body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a full sectional view of the present invention;

fig. 3 is one of the explosion diagrams of the present invention;

fig. 4 is a schematic structural view of the valve cover of the present invention;

fig. 5 is a schematic view of the valve body structure of the present invention.

The reference numerals in the figures denote the meanings:

1-a valve body; 2-a valve stem; 3-valve cover; 4-a baffle plate; 5-sealing the sheet; 6-a limiting frame; 7-limiting sheet;

11-a step portion; 12-a thread; 13-outer hexagon; 21-a return spring; 31-anti-skid lines;

41-positioning a boss; 51-a sealing sheet placement groove; 61-connecting hole.

Detailed Description

The invention will be further described with reference to specific embodiments below:

as shown in fig. 1-5, an air suction valve comprises a valve body 1, a valve rod 2 and a valve cover 3, wherein an air suction channel is arranged on the valve cover 3, the valve cover 3 is arranged at one end of the valve body 1, the valve rod 2 is sleeved with a return spring 21, the valve rod 2 is positioned between the valve body 1 and the valve cover 3, a baffle plate 4 is arranged at one end part of the valve rod 2 close to the valve cover 3, one end of the reset spring 21 is propped against the baffle 4, the other end is propped against the inside of the valve body 1, a sealing sheet 5 for sealing the air suction channel is arranged on the baffle 4, the sealing plate 5 is constantly pressed against the suction channel by the elastic force of the return spring 21, which ensures the sealing performance in the duct thereof, when vacuum or negative pressure is formed in the pipeline, the sealing sheet and the valve rod are pushed inwards by external air, and the external air can enter the pipeline to destroy the vacuum or negative pressure phenomenon in the pipeline.

In foretell suction valve, integrated into one piece has spacing 6 in the valve body 1, be provided with the connecting hole 61 that is used for supplying valve rod 2 to pass on spacing 6, reset spring 21 one end supports and leans on spacing 6, and its other end supports and leans on separation blade 4, and the spacing of design is that cooperation reset spring uses, and it mainly is used for supporting reset spring, be provided with step portion 11 on the valve rod 2, step portion 11 is close to the one end setting of spacing 6, and the displacement distance of valve rod can be restricted with the cooperation of step portion to spacing, and step portion can prevent that the valve rod from excessively moving, guarantees that suction valve can normally work.

The root is in foretell suction valve, be provided with spacing piece 7 on the gasket 5, form gasket standing groove 51 between spacing piece 7 and the separation blade 4, can guarantee like this that the suction valve is at the in-process of using, the gasket can not break away from the valve rod, gasket 5 is located gasket standing groove 51, spacing piece 7 and valve rod 2 be the integrated into one piece structure, spacing piece 7's diameter is less than the diameter of inhaling the passageway, is so in order to guarantee that the gasket can directly seal the passageway of breathing in, guarantees the inside sealing performance of suction valve.

In foretell suction valve, be provided with location boss 41 on separation blade 4, reset spring 21's a pot head is in on the boss 41 of location, the location boss of design plays the effect of guaranteeing the reset spring position, prevents that reset spring from rocking under operating condition perhaps, guarantees suction valve's job stabilization nature, also is the sealed passageway of breathing in order to guarantee that the gasket can be accurate simultaneously, further improves suction valve's sealing performance.

In the above-mentioned suction valve, the valve body 1 and the valve cover 3 are connected together in a threaded connection mode, and the above-mentioned scheme is for making things convenient for suction valve preparation and installation, can great improvement suction valve's production efficiency.

In the above-mentioned suction valve, the valve cover 3 is provided with the anti-slip threads 31 for facilitating the unscrewing or screwing of the valve cover 3, the designed anti-slip threads are convenient for a user to install and disassemble, the other end of the valve body 1 is provided with the threads 12 (the threads are not drawn in the figure), one end close to the threads 12 is provided with the outer hexagonal socket 13 for facilitating the disassembling and assembling of the valve body 1, and the designed outer hexagonal socket is convenient for the user to install the suction valve.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An inhalation valve characterized by: including valve body, valve rod and valve gap, be provided with the passageway of breathing in on the valve gap, just the valve gap sets up in valve body one end, the cover is equipped with reset spring on the valve rod, just the valve rod is located between valve body and the valve gap, a tip that the valve rod is close to the valve gap is provided with the separation blade, reset spring's one end is supported on the separation blade, and the other end supports and leans on in the valve body, be provided with the gasket that is used for sealed passageway of breathing in on the separation blade, the gasket supports constantly on the passageway of breathing in with the.

2. The inhalation valve according to claim 1, wherein: the valve body is internally and integrally formed with a limiting frame, a connecting hole for the valve rod to pass through is formed in the limiting frame, one end of the reset spring is abutted against the limiting frame, and the other end of the reset spring is abutted against the baffle.

3. The inhalation valve of claim 2, wherein: the valve rod is provided with a step part, and the step part is arranged at one end close to the limiting frame.

4. A suction valve according to claim 1, 2 or 3, characterized in that: be provided with spacing piece on the gasket, form the gasket standing groove between spacing piece and the separation blade, the gasket is located the gasket standing groove.

5. The inhalation valve of claim 4, wherein: the limiting piece and the valve rod are of an integrally formed structure.

6. The inhalation valve of claim 5, wherein: the diameter of the limiting sheet is smaller than that of the air suction channel.

7. The inhalation valve according to claim 1, wherein: a positioning boss is arranged on the baffle, and one end of the reset spring is sleeved on the positioning boss.

8. The inhalation valve of claim 7, wherein: the valve body is connected with the valve cover through a threaded connection mode.

9. The inhalation valve of claim 8, wherein: the valve cover is provided with anti-slip lines which facilitate the unscrewing or screwing of the valve cover.

10. The inhalation valve of claim 9, wherein: the other end of the valve body is provided with a thread, and an outer hexagon convenient for disassembly and assembly of the valve body is arranged at one end close to the thread.