CN212804418U - Novel household oxygenerator relief pressure valve - Google Patents

Abstract

The utility model discloses a novel domestic oxygenerator relief pressure valve, characterized by: the internal thread that casing assembly and last shells inner wall's lower part set up down is connected, the central part of casing assembly is installed under to the steady voltage subassembly, the sealing ring external diameter is concentric with the external diameter of diaphragm, terminal surface and casing assembly connection down under the diaphragm, the plane under the diaphragm up end connection sealing ring, the plane is connected with last casing on the sealing ring, the diaphragm fixed body is installed in the macropore of the shoulder hole of diaphragm, diaphragm support piece connection diaphragm up end, the core at diaphragm support piece is installed to the diaphragm fixed body, pressure regulating subassembly one end is connected with diaphragm support piece's core external diameter, casing internally mounted is outside last casing is passed to the other end of pressure regulating subassembly. The beneficial effects are that: the structure of the lower shell assembly replaces the existing threaded connection mode of the valve seat and the valve body installation groove, so that the central shaft of the lower shell assembly is quickly and concentrically installed on the lower shell assembly, the structure is simple, the installation is easy, the manufacture and the exchange are easy, and the continuous pressure stabilization in the oxygen delivery process is realized.

Description

Novel household oxygenerator relief pressure valve

Technical Field

The utility model relates to a pressure reducing valve, in particular to a novel household oxygenerator pressure reducing valve.

Background

The lower shell of the pressure reducing valve for the existing household oxygenerator is combined with two parts of a center seat through threaded connection, and the defect is that the center shaft is not vertical due to eccentricity caused by thread clearance after assembly, so that internal air pressure of the valve is leaked inwards when the pressure reducing valve is used. The reason is that: the internal thread that sets up of inferior valve, the center seat sets up the external screw thread, need join in marriage when its part machining usually and do to make the part after joining in marriage use in a relief pressure valve in pairs, machining efficiency is low, and the nature of each other is poor, is unfavorable for the maintenance in later stage to be changed. Secondly, air inlet joint and exhaust joint in the casing are integrative structure of non-detachable down, and in the aspect of the use, the inlet port of current domestic oxygenerator pressure-reducing valve is connected the connection form with domestic oxygenerator and is single, consequently can not match with the domestic oxygenerator of different models, and this kind of condition need be solved from newly changing the pressure-reducing valve usually, increases the cost.

Chinese utility model patent with application number CN201721318908.2 discloses an oxygenerator relief pressure valve is through setting up the mounting groove on the valve body, and the cover is equipped with rubber gasket above the external screw thread of disk seat, and rubber gasket is used for sealing with the mounting groove upper end cooperation. When the structure is installed, the valve seat is installed on the valve body installation groove through thread matching, the valve seat is influenced by the manufacturing precision of threads, the connection between the threads is separated to cause the center shaft to be not vertical, the center shaft cannot be continuously stabilized, and the oxygen delivery capacity is influenced. Secondly, the above-mentioned drawbacks result in the sealing of the rubber gasket not functioning as a seal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the weak point among the above-mentioned problem, provide a novel domestic oxygenerator relief pressure valve, be one kind easy manufacturing, easily exchange, simple structure simple to operate, air inlet joint can dismantle the domestic oxygenerator relief pressure valve of change.

In order to overcome the technical problem, the utility model discloses a technical scheme is:

including last casing, pressure regulating subassembly, diaphragm fixed body, diaphragm support piece, diaphragm, sealing ring, casing subassembly and steady voltage subassembly down, characterized by: the internal thread that casing assembly and last shells inner wall's lower part set up down is connected, the central part of casing assembly is installed under to the steady voltage subassembly, the sealing ring external diameter is concentric with the external diameter of diaphragm, terminal surface and casing assembly connection down under the diaphragm, the plane under the diaphragm up end connection sealing ring, the plane is connected with last casing on the sealing ring, the diaphragm fixed body is installed in the macropore of the shoulder hole of diaphragm, diaphragm support piece connection diaphragm up end, the core at diaphragm support piece is installed to the diaphragm fixed body, pressure regulating subassembly one end is connected with diaphragm support piece's core external diameter, casing internally mounted is outside last casing is passed to the other end of pressure regulating subassembly.

Further, the lower shell assembly comprises a lower shell, an air inlet connector body, a screw and a sealing ring, wherein threads are arranged on the outer portion of the lower shell, an exhaust connector communicated with the inner portion is further arranged on the outer portion of the lower shell, the air inlet connector body is installed at the bottom of the lower shell through the screw, and the sealing ring is installed in a groove in the lower end of the lower shell and is in contact with an inner hole of the air inlet connector body to form sealing connection.

Furthermore, the edge outline of the lower end of the diaphragm is provided with a semicircular boss, the center of the lower end of the diaphragm is provided with a boss, and a stepped hole is arranged in the boss, wherein a large hole in the stepped hole is communicated with the lower end face of the diaphragm, a small hole in the stepped hole is communicated with the upper end face of the diaphragm, and the large hole and the small hole end face of the stepped hole in the boss are in transition by a fillet.

Preferably, the membrane is made of EPDM.

Compared with the prior art, the beneficial effects of the utility model are that: the structure of the lower shell assembly replaces the existing threaded connection mode of the valve seat and the valve body mounting groove, so that the central shaft of the lower shell assembly is quickly and concentrically mounted on the lower shell assembly, the structure is simple, the mounting is convenient, the manufacture is easy, the exchange is easy, and the continuous pressure stabilization in the oxygen conveying process is realized.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

Fig. 2 is a front view of the lower housing of the present invention.

Fig. 3 is a schematic structural diagram of the membrane of the present invention.

Detailed Description

As shown in fig. 1-3, the pressure regulating device comprises an upper shell 1, a pressure regulating assembly 2, a membrane fixing body 3, a membrane supporting member 4, a membrane 5, a sealing ring 6, a lower shell assembly 7 and a pressure stabilizing assembly 8, and is characterized in that: lower casing subassembly 7 is connected with the internal thread that the lower part of last casing 1 inner wall set up, the central part of casing 7 subassembly is installed down to steady voltage subassembly 8, 6 external diameters of sealing ring are concentric with the external diameter of diaphragm 5, the terminal surface is connected with casing subassembly 7 down under the diaphragm 5, 6 lower planes of sealing ring are connected to the diaphragm 5 up end, the plane is connected with last casing 1 on the sealing ring 6, diaphragm stationary body 3 is installed in 5-3 macropores of the shoulder hole of diaphragm 5, diaphragm support piece 4 connects the diaphragm up end, diaphragm stationary body 3 is installed in the core of diaphragm support piece 4, 2 one end of pressure regulating subassembly is connected with the core external diameter of diaphragm support piece 4, the other end of pressure regulating subassembly 2 passes casing 1 internally mounted outside last casing 1.

Further, the lower shell assembly 7 comprises a lower shell 7-1, an air inlet connector body 7-2, a screw 7-3 and a sealing ring 7-4, wherein the outer portion of the lower shell 7-1 is provided with a thread 7-6, the outer portion of the lower shell 7-1 is also provided with an exhaust connector 7-5 communicated with the inner portion, the air inlet connector body 7-2 is installed at the bottom of the lower shell 7-1 through the screw 7-3, and the sealing ring 7-4 is installed in a groove 7-7 at the lower end of the lower shell 7-1 and is in contact with an inner hole of the air inlet connector body 7-2 to form sealing connection.

Furthermore, a semicircular boss 5-1 is arranged at the edge outline of the lower end of the diaphragm 5, a boss 5-2 is arranged at the center of the lower end of the diaphragm 5, and a stepped hole is arranged in the boss 5-2, wherein a large hole 5-3 in the stepped hole is communicated with the lower end face of the diaphragm 5, a small hole 5-4 in the stepped hole is communicated with the upper end face of the diaphragm 5, and the end faces of the large hole 5-3 and the small hole 5-4 in the stepped hole in the boss 5-2 are in transition by a fillet.

Preferably, the material of the diaphragm 5 is EPDM.

In the pressure regulating assembly 2, one end of a spring 2-4 is connected with a diaphragm support member 4, the other end of the spring 2-4 is connected with a pressure regulating support pad 2-3, the pressure regulating support pad 2-3 is connected with a screw rod 2-1, a damping nut 2-2 is arranged in an upper shell 1, the damping nut 2-2 is in threaded screwing connection with the screw rod 2-1, the pressure-bearing adjustment of the diaphragm support piece is realized by screwing the screw rod 2-1 to drive the pressure-regulating support pad 2-3 to compress or relax the spring 2-4, the sealing ring 6 at the upper end of the diaphragm 5 seals the upper shell 1 and the lower shell component 7, meanwhile, the pressure bearing capacity of the membrane 5 is reinforced, so that the flexible micro-adjustment of the air pressure can be realized with the best performance, meanwhile, the semicircular boss 5-1 of the diaphragm 5 is pressed on the end face of the lower shell component 7, so that the diaphragm is not deformed under the action of air pressure.

In the pressure stabilizing assembly 8, one end of a pressure stabilizing spring 8-3 is arranged in a counter bore in an air inlet joint body 7-2 of a lower shell assembly 7, the other end of the pressure stabilizing spring 8-3 is connected with a center seat 8-2, the center seat 8-2 is connected with a center shaft 8-1, the center seat 8-2 is arranged in a lower shell 7-1, the center shaft 8-1 concentrically penetrates through a through hole of the lower shell 7-1, the lower shell 7-1 and the air inlet joint body 7-2 are sealed through a sealing ring 7-4, when oxygen flows in from the air inlet joint body 7-2, the center seat 8-2 is pushed open through pressure, the pressure stabilizing spring 8-3 is compressed downwards, the center shaft 8-1 slides in a guide way in the through hole of the lower shell 7-1, so that the air enters the inner cavities of the upper shell 1 and the lower shell assembly 7, after the pressure range adjusted by the pressure adjusting component 2 is compensated by the flexible micro-scale of the diaphragm 5, the pressure stabilizing output is realized by the exhaust joint 7-5, and the defects that the prior art is influenced by the manufacturing precision of the screw threads, the connection between the screw threads is separated to cause the eccentricity so that the central shaft is not vertical, the continuous pressure stabilization of the central shaft can not be realized, and the oxygen delivery capacity is influenced are overcome.

In addition, the air inlet joint body 7-2 and the lower shell 7-1 are of a split structure, and the connection with different household oxygenerators is realized by replacing the air inlet joint body 7-2 with different connection forms. The household oxygen generator is matched with household oxygen generators of different models, is easy to exchange and saves cost.

The present invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (4)

1. The utility model provides a novel domestic oxygenerator relief pressure valve, includes casing, pressure regulating subassembly, diaphragm fixed body, diaphragm support piece, diaphragm, sealing ring, casing subassembly and steady voltage subassembly down, characterized by: the internal thread that casing assembly and last shells inner wall's lower part set up down is connected, the central part of casing assembly is installed under to the steady voltage subassembly, the sealing ring external diameter is concentric with the external diameter of diaphragm, terminal surface and casing assembly connection down under the diaphragm, the plane under the diaphragm up end connection sealing ring, the plane is connected with last casing on the sealing ring, the diaphragm fixed body is installed in the macropore of the shoulder hole of diaphragm, diaphragm support piece connection diaphragm up end, the core at diaphragm support piece is installed to the diaphragm fixed body, pressure regulating subassembly one end is connected with diaphragm support piece's core external diameter, casing internally mounted is outside last casing is passed to the other end of pressure regulating subassembly.

2. The novel household oxygenerator pressure reducing valve of claim 1, which is characterized in that: the lower shell assembly comprises a lower shell, an air inlet connector body, a screw and a sealing ring, wherein threads are arranged on the outer portion of the lower shell, an exhaust connector communicated with the inner portion is further arranged on the outer portion of the lower shell, the air inlet connector body is installed at the bottom of the lower shell through the screw, and the sealing ring is installed in a groove in the lower end of the lower shell and is in contact with an inner hole of the air inlet connector body to form sealing connection.

3. The novel household oxygenerator pressure reducing valve of claim 1, which is characterized in that: the edge profile of the lower end of the diaphragm is provided with a semicircular boss, the center of the lower end of the diaphragm is provided with a boss, and a stepped hole is arranged in the boss, wherein a large hole in the stepped hole is communicated with the lower end face of the diaphragm, a small hole in the stepped hole is communicated with the upper end face of the diaphragm, and the large hole and the small hole end face of the stepped hole in the boss are in transition by a fillet.

4. A novel household oxygen generator pressure reducing valve as claimed in claim 1 or claim 3, wherein: the membrane is made of EPDM.

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