CN202392207U

CN202392207U - Pressure regulating valve

Info

Publication number: CN202392207U
Application number: CN2011205509274U
Authority: CN
Inventors: 杜汉忠
Original assignee: Eezcare Medical Corp
Current assignee: Eezcare Medical Corp
Priority date: 2011-12-26
Filing date: 2011-12-26
Publication date: 2012-08-22
Anticipated expiration: 2021-12-26

Abstract

The utility model relates to a pressure regulating valve, which is characterized in that a ball and a spring are sequentially contained in an adapter tube. One end of the adapter tube is provided with an air inlet. A knob is combined to the other end of the adapter tube. Loop diameter of the middle of the spring is larger than loop diameter of the two ends of the spring, so that a gap between the spring and the inner wall of the adapter tube can be narrowed to reduce vibration amplitude of the spring and prevent noise. The spherical ball provides an air inlet allowing for stable passage of air to regulate air pressure, so that unstable interior air pressure of pressure equipment is prevented, and well pressure regulating is achieved.

Description

Pressure regulator valve

Technical field

The utility model refers to a kind of pressure regulator valve that prevents noise generation and stable regulation pressure facility gas inside pressure especially relevant for pressure regulator valve.

Background technique

Pressure regulator valve is installed on the pressure facility, is used to regulate pressure facility gas inside pressure, surpasses maximum allowable pressure with the pressure that prevents device interior.See also Fig. 4 and shown in Figure 5; The pressure regulator valve of existing technology, its main structure are to take over 50 inside in one to be equipped with a cone 60 and a curved spring 70 in regular turn, and this takes over 50 1 ends is an inlet hole 51; The other end is combined with a knob 80; The sidewall of adapter 50 is provided with two exhaust ports 52 that run through, and the two ends of this spring 70 are sheathed on the outside of knob 80 and cone 60 respectively, and cone 60 will be taken over 50 inlet hole 51 sealings.

When the gas pressure in the pressure facility surpasses the force value of setting; High pressure air is known from experience from inlet hole 51 pushing and pressing cone 60 and the pressure springs 70 of taking over 50; Make cone 60 no longer seal inlet hole 51 and be formed with the space; And then pressurized gas can reach the effect that downgrades pressure thus through this space and by exhaust port 52 discharges; After the gas pressure in the pressure facility returns back to the force value of setting, rely on the elastic force of spring 70 can promote cone 60 sealing inlet holes 51 to prevent gas leak, make the pressure in the pressure facility remain on certain force value.

Because the space that inlet hole 51 forms is very little; Make when pressurized gas carry out exhaust; Collision frequency between gas molecule can increase, and causes spring 70 resonance and the generation noise, and above-mentioned spring 70 is curved design; Can provide the two ends of spring 70 to be against the side of knob 80 and cone 60, and then reduce the Oscillation Amplitude of spring 70 and prevent that noise from producing; Yet; Curved spring 70 is when reality is used; Cause the position to produce deflection easily at the cone 60 of spring 70 1 ends; The cone 60 of deflection can't provide gas stable passing through inlet hole 51 and discharged by exhaust port 52, and then the phenomenon of air leakage amount inequality and pressure facility gas inside pressure transient takes place.

Summary of the invention

Because the shortcoming of aforementioned existing technology; The purpose of the utility model is to provide a kind of pressure regulator valve; By means of being designed with spherical ball and stage casing diameter spring, to reach the effect that prevents that noise from producing and preventing pressure facility gas inside pressure transient greater than the two ends diameter.

For reaching aforesaid model utility purpose; The pressure regulator valve that the utility model designed includes an adapter, a ball, a spring and a knob, and wherein: this takes over an end is an inlet hole; The other end is combined with this knob, and the sidewall of adapter is provided with two exhaust ports that run through; This ball be placed in take over inner and the position between inlet hole and exhaust port; The coil diameter in this spring stage casing is greater than the coil diameter at two ends, and this spring is placed in the receiving hole of adapter, and the spring position is between knob and ball, and spring one end is replaced on ball, makes ball with the inlet hole sealing of taking over.

Described pressure regulator valve, wherein: this adapter has a perforation that runs through, and this perforation one end is this inlet hole; This perforation the other end is a screw; This perforation stage casing is a receiving hole, and the aperture of receiving hole is greater than the aperture of inlet hole, and receiving hole and this exhaust port are interconnected; The external diameter of this ball is greater than the aperture of the inlet hole of taking over, and the external diameter of this ball is less than the aperture of the receiving hole of taking over, and this ball is placed in the receiving hole of adapter; This knob one end is formed with outside thread, and this knob mutually combines with the screw of this outside thread and adapter.

Described pressure regulator valve, wherein: the end face of this knob one end is outstanding to be provided with a projection, and this spring the other end is set in the outside of this projection.

Described pressure regulator valve, wherein: this end periphery that this adapter is combined with knob is formed with a fixed plate, runs through being provided with two fixed holes on this fixed plate.

The pressure regulator valve that the utility model provided; Advantage that can obtain and effect enhancement comprise at least: the stage casing coil diameter through with spring increases; Make the gap between spring and the nozzle inner wall face obtain to dwindle; Reaching the Oscillation Amplitude that reduces spring and to prevent the effect that noise produces, spherical ball can provide gas stable pass through inlet hole and by the exhaust port discharge, so the problem of air leakage amount inequality and pressure facility gas inside pressure transient can not take place.

Description of drawings

Fig. 1 is the stereo appearance figure of the utility model;

Fig. 2 is the exploded view of the utility model;

Fig. 3 is the sectional drawing of the utility model;

Fig. 4 is the sectional drawing of existing technology;

Fig. 5 is the exploded view of existing technology.

Description of reference numerals: 10-takes over; The 11-perforation; The 111-inlet hole; The 112-screw; The 113-receiving hole; The 12-exhaust port; The 13-fixed plate; The 131-fixed hole; The 20-ball; The 30-spring; The 40-knob; The 41-outside thread; The 42-projection.

Embodiment

See also Fig. 1 to shown in Figure 3, the pressure regulator valve of the utility model, it includes one and takes over 10, one ball 20, a spring 30 and a knob 40, wherein:

This adapter 10 is a threeway body, and it has an axial perforation 11 that runs through, and these perforation 11 1 ends are an inlet hole 111; The other end is a screw 112; The stage casing is a receiving hole 113, and the aperture of screw 112 is greater than the aperture of receiving hole 113, and the aperture of receiving hole 113 is greater than the aperture of inlet hole 111; The sidewall of adapter 10 is provided with two rod radial air vents 12 that run through; This exhaust port 12 is interconnected with receiving hole 113, and this end periphery that adapter 10 is provided with screw 112 is formed with a fixed plate 13, runs through being provided with two fixed holes 131 on this fixed plate 13;

The external diameter of this ball 20 is greater than the aperture of taking over 10 inlet hole 111 and less than the aperture of taking over 10 receiving hole 113, and this ball 20 is placed in to be taken in 10 the receiving hole 113;

This spring 30 is a helical spring, and the coil diameter in its stage casing is greater than the coil diameter at two ends, and this spring 30 is placed in the receiving hole 113 of adapter 10;

This knob 40 is a body of rod, and the one of which end is formed with outside thread 41, and the outstanding projection 42 that is provided with of the end face of this end; This knob 40 mutually combines with its set outside thread 41 and the screw 112 of taking over 10; Replace on ball 20 by spring 30 1 ends between knob 40 and ball 20 for 30 on aforementioned spring, makes ball 20 will take over 111 sealings of 10 inlet hole; Spring 30 the other ends are set in projection 42 outsides of knob 40, are incorporated into by adjustment knob 40 and take over the elastic force that 10 the degree of depth can change spring 30.

The pressure regulator valve of the utility model is when reality is used; Be to utilize fixed block to run through to take over 10 fixed hole 131 and be combined on the pressure facility; When force value that the gas pressure in the pressure facility surpass to be set, high pressure air is known from experience from inlet hole 111 pushing and pressing balls 20 and the pressure springs 30 of taking over 10, makes ball 20 no longer seal inlet hole 111 and is formed with the space; And then pressurized gas can reach the effect that downgrades pressure thus through this space and by exhaust port 12 discharges; After the gas pressure in the pressure facility returns back to the force value of setting; Just there is not pressurized gas pushing and pressing ball 20; At this moment, rely on the elastic force of spring 30 can promote ball 20 sealing inlet holes 111, make the pressure in the pressure facility remain on certain force value to prevent gas leak.

The characteristics of the utility model are; Stage casing coil diameter through with spring 30 increases; The gap that makes spring 30 and take between 10 internal faces obtains to dwindle, so when pressurized gas carried out exhaust, the Oscillation Amplitude of spring 30 can reduce the effect that prevents that to reach noise from producing; Spherical ball 20 can provide gas stable passing through inlet hole 111 and by exhaust port 12 discharges, effectively avoid the phenomenon of air leakage amount inequality and pressure facility gas inside pressure transient to take place.

Claims

1. pressure regulator valve is characterized in that: include an adapter, a ball, a spring and a knob, wherein:

This takes over an end is an inlet hole, and the other end is combined with this knob, and the sidewall of adapter is provided with two exhaust ports that run through;

This ball be placed in take over inner and the position between inlet hole and exhaust port;

The coil diameter in this spring stage casing is greater than the coil diameter at two ends, and this spring is placed in the receiving hole of adapter, and the spring position is between knob and ball, and spring one end is replaced on ball, makes ball with the inlet hole sealing of taking over.

2. pressure regulator valve as claimed in claim 1 is characterized in that:

This adapter has a perforation that runs through, and this perforation one end is this inlet hole, and this perforation the other end is a screw, and this perforation stage casing is a receiving hole, and the aperture of receiving hole is greater than the aperture of inlet hole, and receiving hole and this exhaust port are interconnected;

The external diameter of this ball is greater than the aperture of the inlet hole of taking over, and the external diameter of this ball is less than the aperture of the receiving hole of taking over, and this ball is placed in the receiving hole of adapter;

This knob one end is formed with outside thread, and this knob mutually combines with the screw of this outside thread and adapter.

3. pressure regulator valve as claimed in claim 1 is characterized in that: the end face of this knob one end is outstanding to be provided with a projection, and this spring the other end is set in the outside of this projection.

4. pressure regulator valve as claimed in claim 2 is characterized in that: the end face of this knob one end is outstanding to be provided with a projection, and this spring the other end is set in the outside of this projection.

5. like each described pressure regulator valve in the claim 1 to 4, it is characterized in that: this end periphery that this adapter is combined with knob is formed with a fixed plate, runs through being provided with two fixed holes on this fixed plate.