CN207349510U - A kind of check valve structure - Google Patents

Abstract

It the utility model is related to safety valve technical field, more particularly to a kind of check valve structure.The technical solution adopted in the utility model is：A kind of check valve structure, including hollow conical body structure, angle between the taper surface of agent structure and bottom surface is 100 degree, the bottom of agent structure is equipped with cylinder assembling base, the inner side circular conical surface of agent structure is equipped with integrally formed fixed branch angle, agent structure upper end center position is equipped with center drilling, the inner side of center drilling is closure boss, fixed branch angle is equipped with card slot, card slot is fastened togather with reversed convex type retainer, the center of retainer is circular groove, and spring, the removable valve of upper end connection of spring are equipped with groove.The utility model has the advantages that：It ensure that the leakproofness of check-valves when in use, improve the compactness that it is connected with other structures, make check-valves more safe and reliable in use, performance is more preferable, can be applied in the environment more demanding to check-valves.

Description

A kind of check valve structure

Technical field

It the utility model is related to safety valve technical field, more particularly to a kind of check valve structure.

Background technology

Safety valve is that opening and closing element is in normally off under by external force effect, when the pressure medium rise in equipment or pipeline is super When crossing setting, by outside system discharge medium prevent the pressure medium in pipeline or equipment from exceeding the particular usage valve of specified value Door.Safety valve belongs to automatic valve class, is mainly used for boiler, on pressure vessels and pipes, control pressure is no more than setting, to people Body safety and equipment have run important protective effect.Safety valve has to pass through pressure testing and could use.

Check-valves refers to flow in itself by medium and automatic open and close flap, for preventing the valve of medium refluence, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, its main function is to prevent medium from falling Flow, prevent pump and drive motor reversion, and vessel media from releasing.

Chinese valve industrial chain is numerous, but non-valve is made the country prosperous.It is overall to see that China has marched toward valve big country of the world up Ranks, but from product quality Lai Kan China from valve power still have a very long segment difference away from.The production concentration degree of industry is low, high The phenomenons such as the valve research and development ability that product matches is low, valve industry manufacturing technology level is low are held to still have, foreign trade Unfavourable balance constantly expands.

The coming years will be that the high speed of valve industry is shaken the phase, and the direct result that the concussion of this high speed is brought is to cause valve The trend to produce a polarization in cabinet brand camp expands.It is expected that the valve enterprise that a few years from now on really is able to commercially survive is exhausted It is so more to not having.But this high speed concussion of valve industry will bring huge chance, and the result of concussion will transport market Make more rationality.The road of the production domesticization of high-end valve is abnormal " frustration ".Basic part, which has become, restricts China's manufacturing industry to high-end Change the short slab of development, 12 period government will continue to increase to the production domesticization dynamics of high-end equipment parts.We select herein Take《Embodiment》In several feasibility analyses given priority to the representative valve of industry and carry out import substitution for referring to. From analysis we can see that each sub-industry valve inlet substitutes, feasibility difference is very big, and high-end valve urgently draw by more policies Lead and scientific research is helped.Valve industry is in the national economic development, as a manufacturing important step is prepared, plays very heavy The effect wanted.Since the country of China valve manufacture industry level still has certain gap compared with international most advanced level, a lot of high parameters, High temperature and pressure, the critical valves original of high pound level rely on import always, in order to make every effort to promote Valves localization, are assigned in State Council《Close In some opinions for accelerating development equipment manufacture》Afterwards, the localization of key equipment that national departments concerned is made according to country It is required that successively having made a series of great deployment, and taken the lead by National Development and Reform Committee, Chinese mechanical industry federation and old China hand use Together, the Valves localization schemes of association area Grand Equipments has been worked out in deployment for Machinery and Allied Products Institute, and repeatedly and relevant department Coordinate, nowadays Valves localization at home built consensus by valve industry.Active adoption international standard carries out product design；Absorb The design structure of foreign outstanding；Product testing, service check are strictly carried out by international standard；Absorb external vanguard technology warp Test the research and popularization and application for paying attention to new material；Understanding fully technical parameter and working condition of the high parameter valve products of import etc. is Increase the proportion of domestic goods more quickly, propulsion valve product is constantly updated, and realizes the unique channel of the production domesticization of valve comprehensively.

With the quickening of valve industry restructuring paces, following industry will be between valve products quality safety and product brand Competition, product to high-tech, high parameter, be able to bear strong corrosion, high life direction is developed, only by continuous technological innovation, open New product is sent out, is undergone technological transformation, can just step up product technology level, meets domestic matched with devices, realizes valve comprehensively Production domesticization.China's valve manufacture industry will show more preferable development prospect under huge demand environment.

Utility model content

The purpose of this utility model is to provide a kind of check valve structure, passes through tight structure design and more accurate knot Structure combines, and makes the performance of check-valves more preferable, more convenient when in use, and security during use is more reliable.

The technical solution of the utility model is as follows：

A kind of check valve structure, it is characterised in that：Including hollow conical body structure, the taper of the agent structure Angle between face and bottom surface is 100 degree, and the bottom of the agent structure is equipped with cylinder assembling base, the agent structure and Assembling circular arc is equipped between the assembling base, the outermost diameter of the assembling base is more than the agent structure maximum position The diameter at place, the inner side circular conical surface of the agent structure are equipped with four fixed branch that are equally distributed and being integrally formed Angle, the setting direction at the fixed branch angle is identical with the axis direction of the agent structure, the agent structure upper end center position Installed center drilling, the inner side of the center drilling is closure boss, and the fixed branch angle is equipped with card slot, the card slot and Reversed convex type retainer is fastened togather, and the center of the retainer is circular groove, and spring is equipped with the groove, described The removable valve of upper end connection of spring, the removable valve is closely joined together with the spring, with the spring The movement removable valve moved together, the removable valve center is equipped with circular trough, the circular trough Size it is identical with the size of the center drilling, the top end face of the agent structure is frosting, and the frosting passes through 9 A circular configuration composition being of same size, the bottom surface of the assembling base are equipped with circular seal groove.

Further, the bottom 5mm of base is assembled described in the distance from bottom of the retainer.

Further, the diameter of the spring is less than the diameter of the center drilling.

Further, the quantity of the circular seal groove is 5, and is evenly distributed on the bottom surface of the assembling base On.

The beneficial effects of the utility model：

The utility model ensure that the leakproofness of check-valves when in use, and it is tight with other structures mating connection to improve it Close property, makes check-valves more safe and reliable in use, performance is more preferable, can be applied to more demanding to check-valves In environment.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model；

Fig. 2 is the front schematic view of the utility model；

Fig. 3 is the new schematic top plan view of this practicality；

Fig. 4 is the diagrammatic cross-section of the utility model A-A positions；

Fig. 5 is the enlarged diagram of the utility model B-B positions；

Fig. 6 is the dimensional structure diagram of the utility model second direction；

In figure：1st, agent structure, 2, assembling base, 3, assembling circular arc, 4, center drilling, 5, fixed branch angle, 6, stop Part, 7, spring, 8, removable valve, 9, closure boss, 10, card slot, 11, frosting, 12, seal groove.

Embodiment

As shown in Figures 1 to 6, a kind of check valve structure, it compared with traditional check-valves have it is small, light-weight, Valve is closed quickly, and easy to install, runner is unobstructed, and liquid resistance is small, acts sensitiveer, better tightness, service life It is longer, the advantages that more reliable performance, it can be applied in the structure of various needs as needed, such as can be applied to liquid list In being controlled to flowing, gas atmosphere control structure is medium, very easy to use.It includes hollow conical body structure 1, cone Shape structure when in use can be more smooth.Angle between the taper surface of the agent structure 1 and bottom surface is 100 degree, described The bottom of agent structure 1 is equipped with cylinder assembling base 2, and component location guide is equipped between the agent structure and the assembling base 2 2 position of assembling base, is fastened togather, can make dress by the setting for assembling circular arc 3 by arc 3 with other structures when in use It is more preferable with effect, compared with right angle, more convenient assembling is set.The outermost diameter of the assembling base 2 is more than the agent structure 1 Diameter at maximum position.The inner side circular conical surface of the agent structure 1 be equipped with four it is equally distributed and be integrally formed Fixation branch angle 5, the setting direction at the fixed branch angle 5 is identical with the axis direction of the agent structure 1, for vertical distribution. The 1 upper end center position of agent structure is equipped with center drilling 4, and the position of center drilling 4 is flow-through opening position, in described The inner side of heart perforate 4 is closure boss 9, and the setting of closure boss 9 can facilitate the leakproofness at aperture position, make overall non-return The leakproofness of valve is more secure.The fixed branch angle 5 is equipped with card slot 10, and the card slot 10 is fastened on reversed convex type retainer 6 Together, retainer 6 is fixed on this position immovable, play the role of stop.The center of the retainer 6 is circle Connected in star, the groove is interior to be equipped with spring 7, and spring 7 will not drop out after placing, safer in use.The spring 7 The removable valve 8 of upper end connection, the removable valve 8 is closely joined together with the spring 7, with the spring 7 The mobile removable valve 8 is moved together, and removable 8 center of valve is equipped with circular trough, the circular trough Size it is identical with the size of the center drilling 4, circular trough is docking together completely with center drilling 4 when in use, can Make the connection of aperture position closer.The top end face of the agent structure 1 is frosting 11, when being connected with other structures part, Frosting 11 is able to ensure that even closer in connection.The frosting 11 is made up of 9 circular configurations being of same size, institute The bottom surface for stating assembling base 2 is equipped with circular seal groove 12, and in assembling, sealing is placed in the position of seal groove 12 to base 2 on bottom surface Bar, can be effectively increased the leakproofness of part connection, making part, performance is more preferable when in use.

Preferably, assembling the bottom 5mm of base 2 described in the distance from bottom of the retainer 6, the structural strength of part is more It is good, the service life of part can be made longer.

Preferably, the diameter of the spring 7 is less than the diameter of the center drilling 4, effect is more preferable when in use.

Preferably, the quantity of the circular seal groove 12 is 5, and it is evenly distributed on the bottom of the assembling base 2 On face, leakproofness of the part in connection is substantially increased by the setting of multiple seal grooves.

The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of principle described in the utility model is not departed from, some improvement or replacement can also be made, these improvement Or replace and also should be regarded as the scope of protection of the utility model.

Claims (4)

1. A kind of 1. check valve structure, it is characterised in that：Including hollow conical body structure (1), the agent structure (1) Angle between taper surface and bottom surface is 100 degree, and the bottom of the agent structure (1) is equipped with cylinder assembling base (2), described Assembling circular arc (3) is equipped between agent structure (1) and the assembling base (2), the outermost diameter of the assembling base (2) is big Diameter at the agent structure (1) maximum position, the inner side circular conical surface of the agent structure (1) are equipped with four and uniformly divide Cloth and the fixation branch angle (5) that is integrally formed, setting direction and the agent structure (1) of the fixed branch angle (5) Axis direction is identical, and agent structure (1) the upper end center position is equipped with center drilling (4), the inner side of the center drilling (4) For closure boss (9), the fixed branch angle (5) is equipped with card slot (10), and the card slot (10) engages with reversed convex type retainer (6) Together, the center of the retainer (6) is circular groove, and spring (7) is equipped with the groove, the spring (7) The removable valve (8) of upper end connection, the removable valve (8) is closely joined together with the spring (7), with the bullet The movement removable valve (8) of spring (7) is moved together, and removable valve (8) center is equipped with circular trough, The size of the circular trough is identical with the size of the center drilling (4), and the top end face of the agent structure (1) is frosting (11), the frosting (11) is made up of 9 circular configurations being of same size, and the bottom surface of the assembling base (2) is equipped with Circular seal groove (12).
2. A kind of 2. check valve structure according to claim 1, it is characterised in that：The distance from bottom institute of the retainer (6) State the bottom 5mm of assembling base (2).
3. A kind of 3. check valve structure according to claim 1, it is characterised in that：The diameter of the spring (7) is less than described The diameter of center drilling (4).
4. A kind of 4. check valve structure according to any one of claims 1 to 3, it is characterised in that：The circular seal groove (12) quantity is 5, and is evenly distributed on the bottom surface of the assembling base (2).