CN213982159U

CN213982159U - Elastic sheet type one-way valve plate and valve with same

Info

Publication number: CN213982159U
Application number: CN202023287122.3U
Authority: CN
Inventors: 李泽平; 梁宗龙; 曾刚华; 曾强
Original assignee: Sichuan Peize Technology Co ltd
Current assignee: Sichuan Peize Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-17
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a general machinery equips and makes technical field, a shell fragment formula check valve piece and have valve of this valve piece is disclosed, it includes the disk seat, piston cylinder and valve piece, the disk seat passes through the bolt and installs on the piston cylinder, the valve piece is located between the piston chamber of disk seat and piston cylinder, the valve piece includes the metal sheet body, the logical groove of U type has been seted up on the metal sheet body, it is fluted to stretch on the metal sheet body, the recess is located the outside that the logical groove of U type, the air vent has been seted up to the tank bottom of recess, inlet port and venthole have been seted up on the disk seat, the recess is located the inlet end of venthole, the elasticity end cap is installed to the end of giving vent to anger of venthole, the axial lead of inlet port is located the inboard that the logical groove of U type. The utility model has the advantages that: through stretching a groove on the valve block and opening the vent hole at the bottom of the groove, the stretching part of the groove is clamped in the vent hole on the valve seat, and the valve block is prevented from shifting during installation.

Description

Elastic sheet type one-way valve plate and valve with same

Technical Field

The utility model relates to a general mechanical equipment makes technical field, especially a shell fragment formula check valve structure.

Background

The one-way valve block adopted in the existing inflator pump one-way valve is generally planar, the one-way valve block is arranged on the one-way valve by a pressing plate and a screw on two sides or riveted on a valve seat by a rivet, the planar one-way valve block cannot be positioned when being arranged and is easy to deviate, no filtering device is arranged between a vent hole on the valve seat and a vent hole on the one-way valve block, particles generated by friction between a piston sealing ring on the inflator pump and the inner wall of a cylinder body are easy to enter a sealing part of a pressure relief electromagnetic valve of the inflator pump, and air leakage is caused by poor sealing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shell fragment formula check valve to solve current planar check valve piece and take place the problem of skew easily when the installation.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a shell fragment formula check valve structure, includes disk seat, piston cylinder and valve block, the disk seat passes through the bolt to be installed on the piston cylinder, the valve block is located the disk seat with between the piston chamber of piston cylinder, the valve block includes the metal lamellar body, the logical groove of U type has been seted up on the metal lamellar body, it is tensile fluted on the metal lamellar body, the recess is located the outside that the groove was led to the U type, the air vent has been seted up to the tank bottom of recess, inlet port and venthole have been seted up on the disk seat, the recess is located the inlet end of venthole, the elasticity end cap is installed to the end of giving vent to anger of venthole, the axial lead of inlet port is located the inboard that the groove is led to the U type.

Preferably, the piston cylinder comprises a cylinder body, a cylinder body seat and a piston assembly, the cylinder body is installed on the cylinder body seat, a piston rod of the piston assembly is installed in the cylinder body seat, a piston of the piston assembly is located in the cylinder body, and the valve plate is located between the valve seat and an inner cavity of the cylinder body.

Preferably, the cylinder body with all seted up the ring channel on the contact surface of valve block, the disk seat with the contact surface of valve block, install the sealing washer in the ring channel, the sealing washer passes through the valve block is impressed in the ring channel.

Preferably, the notch of the U-shaped through slot faces the groove.

Preferably, the number of the vent holes is several, and the vent holes are uniformly distributed around the center of the groove.

Preferably, the groove has a drawing depth of 1 mm to 2 mm.

Preferably, the diameter of the vent hole is 0.2 mm to 0.5 mm.

The utility model has the advantages of it is following:

1. through stretching a groove on the valve block and opening the vent hole at the bottom of the groove, the stretching part of the groove is clamped in the vent hole on the valve seat, and the valve block is prevented from shifting during installation.

2. Set up unit area's air vent into a plurality of apertures, do not influence the air output of disk seat unit interval promptly, and the aperture can also filter particle impurity, avoids particle impurity to get into the pump.

Drawings

FIG. 1 is a schematic view of a conventional valve plate

FIG. 2 is a first schematic structural diagram of the valve plate of the present invention;

FIG. 3 is a schematic cross-sectional view of B-B of FIG. 2;

FIG. 4 is a schematic view of the mounting structure of the valve seat;

FIG. 5 is a schematic cross-sectional view of A-A in FIG. 4;

in the figure, 1-metal sheet body, 2-U-shaped through groove, 3-groove, 4-vent hole, 5-valve seat, 6-cylinder body, 7-cylinder body seat, 8-piston assembly, 9-sealing ring, 10-bolt and 11-elastic plug.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 4 and 5, the existing leaf spring type check valve structure comprises a valve seat 5, a piston cylinder and a valve plate, wherein a mounting hole is formed on the valve seat 5, a corresponding threaded hole is formed on the piston cylinder, a bolt 10 is screwed in the threaded hole through the mounting hole, so that the valve seat is detachably mounted on the piston cylinder, the piston cylinder comprises a cylinder body 6, a cylinder body seat 7 and a piston assembly 8, the cylinder body 6 is mounted on the cylinder body seat 7, a piston rod of the piston assembly 8 is mounted in the cylinder body seat 7, a piston of the piston assembly 8 is located in the cylinder body 6, the valve plate is located between the valve seat 5 and an inner cavity of the cylinder body 6, the valve plate comprises a metal plate body 1, a U-shaped through groove 2 is formed on the metal plate body 1, a U-shaped sealing elastic sheet is formed on the metal plate body 1 in the U-shaped through groove 2, an air vent 4 is further formed on the metal plate body 1, the air vent 4 is located outside the U-shaped through groove 2, an air inlet hole and an air outlet hole are formed on the valve seat 5, the axial lead of the air inlet is positioned at the inner side of the U-shaped through groove 2, the vent hole 4 is opposite to the air outlet, the air outlet end of the air outlet is provided with an elastic plug 11, when the piston assembly 8 moves towards the valve seat 5, the piston compresses air to enable the U-shaped sealing elastic sheet on the one-way valve sheet to seal the air inlet on the valve seat 5, the elastic plug 11 is pushed open, and the air enters the air storage device of the inflator pump; when the piston assembly 8 moves away from the valve seat 5, the elastic plug 11 retracts, the pressure in the cylinder body 6 is lower than the pressure of an upper air inlet hole of the valve seat 5, the U-shaped sealing elastic sheet on the one-way valve sheet is opened, so that gas enters the cylinder body 6, the valve sheet is planar, the valve sheet is installed by applying pressure to the valve body 6 by tightening a bolt for connecting the valve seat 5 and the cylinder body 6, because of surface-to-surface contact, the valve sheet is easy to deflect due to uneven stress when the bolt is initially installed and tightened, and air leakage is caused by untight sealing, so that the valve sheet is improved into that as shown in figures 2 and 3, a groove 3 is stretched on a metal sheet body 1, the stretching depth of the groove 3 is 1-2 mm, a notch of a U-shaped through groove 2 faces the groove 3, a vent hole 4 is formed at the bottom of the groove 3, the groove 3 is installed at the air inlet end of an air outlet hole, and the groove 3 clamped in the air outlet hole is used for avoiding the valve sheet from deflecting during initial installation and tightening of the bolt, resulting in a leak due to poor sealing.

In this embodiment, as shown in fig. 5, annular grooves are formed in the contact surfaces of the cylinder 6 and the valve plate and the contact surfaces of the valve seat 5 and the valve plate, a seal ring 9 is installed in the annular groove, and the seal ring 9 is pressed into the annular groove through the valve plate, so that compressed gas is prevented from leaking from a gap between the cylinder 6 and the valve plate or a gap between the valve seat 5 and the valve plate.

In this embodiment, as shown in fig. 2, the vent hole 4 is a plurality of, and around the central equipartition of recess 3, the diameter of vent hole 4 is 0.2 millimeter to 0.5 millimeter, sets up the vent hole 4 of unit area into a plurality of apertures, does not influence the air output of 5 unit times of disk seat promptly, and the aperture can also filter particulate impurity, avoids particulate impurity to get into the pump.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a shell fragment formula check valve piece, includes the metal sheet body, U type logical groove has been seted up on the metal sheet body, its characterized in that: the metal sheet body is stretched with a groove, the groove is positioned at the outer side of the U-shaped through groove, and a vent hole is formed in the bottom of the groove.

2. The spring plate type check valve plate of claim 1, wherein: the vent holes are a plurality of and are uniformly distributed around the center of the groove.

3. The spring plate type check valve plate according to claim 1 or 2, wherein: the notch of the U-shaped through groove faces the groove.

4. The spring plate type check valve plate of claim 3, wherein: the groove has a drawing depth of 1 mm to 2 mm.

5. The spring plate type check valve plate of claim 4, wherein: the diameter of the vent hole is 0.2 mm to 0.5 mm.

6. The utility model provides a shell fragment formula check valve which characterized in that: including disk seat, piston cylinder and claim 1 or 2 the valve block, the disk seat passes through the bolt and installs on the piston cylinder, the valve block is located the disk seat with between the piston chamber of piston cylinder, inlet port and venthole have been seted up on the disk seat, the recess is located the inlet end of venthole, the end of giving vent to anger of venthole installs elasticity end cap, the axial lead of inlet port is located the inboard that the groove was led to the U type.

7. The leaf spring type check valve of claim 6, wherein: the piston cylinder comprises a cylinder body, a cylinder body seat and a piston assembly, the cylinder body is installed on the cylinder body seat, a piston rod of the piston assembly is installed in the cylinder body seat, a piston of the piston assembly is located in the cylinder body, and the valve plate is located between the valve seat and an inner cavity of the cylinder body.

8. The leaf spring type check valve of claim 7, wherein: the cylinder body with all seted up the ring channel on the contact surface of valve block, the disk seat with on the contact surface of valve block, install the sealing washer in the ring channel, the sealing washer passes through the valve block is impressed in the ring channel.