CN201101811Y - Manual safety valve - Google Patents

Abstract

The utility model discloses a manual safety valve, comprising a casing with a casing cavity, at least one valve body arranged in the casing cavity and a valve plug corresponding to the value body, wherein, the valve body is provided with an air inlet port, an air outlet port, a relief port and a valve chamber communicated with the air inlet port, the air outlet port and the relief port; an elastic body is arranged in the valve chamber; a push button is installed on the casing; the valve plug passes across the air outlet port and is arranged between the elastic body and the push button; the valve plug is provided with a part positioned in the valve chamber, and the part is provided with a sealing part the outer diameter of which is more than the caliber of the relief port. The manual safety valve is connected in series between a gas bag of an air pressure massager and an air supply, and the relief port of the valve body is sealed by the sealing part when the manual safety valve is in normal use under the elastic force of the elastic body. When emergency occurs, the button is pressed, and then the valve plug moves transversely against the elasticity of the elastic body, the sealing part relieves the sealing of the relief port, air in the valve chamber is discharged momently, and a user can be protected effectively.

Description

manual safety valve

technical field

The utility model relates to an air valve, in particular to an air valve applied to a massage device which utilizes the expansion and contraction of an air bag for massage.

Background technique

The air pressure massager uses the pressure change of the gas to realize the periodic expansion and contraction of the air bag, so as to massage the user. The massage frequency and massage intensity can be selected according to the needs. The air pressure massager can relieve the pressure of the pressed parts, relieve pain, improve blood circulation, relieve fatigue and relax nerves.

The existing air pressure massager includes an air pump, a solenoid valve and an air bag. Air is supplied to the air bag through the air pump, and the air pressure can be released through the solenoid valve. The air bag can be inflated or contracted through periodic inflation and deflation, so as to realize the effect on the human body. massage. However, when the solenoid valve breaks down, the air pump will always supply air to the air bag, increasing the air pressure, which will easily cause injury and mental panic to the user; cause harm to the user.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a manual safety valve capable of rapid pressure release.

The technical solution adopted by the present invention to solve the technical problem is: a manual safety valve, including a shell with a shell cavity, at least one valve body and a valve core corresponding to the valve body arranged in the shell cavity, the valve body It has an air inlet, an air outlet, an air discharge port and a valve chamber connected to the air inlet, air outlet and air discharge port. An elastic body is arranged in the valve chamber, a button is installed on the housing, and the valve core crosses the discharge port. The air port is arranged between the elastic body and the button, and the valve core has a part located in the valve chamber, and the part is provided with a sealing part whose outer diameter is larger than that of the air release port.

An elastic sealing ring is also provided in the valve cavity, and the sealing ring is sleeved on the valve core and located between the sealing part and the air release port.

The valve core is plugged and matched with the button.

The casing has an opening, and the button is arranged on the opening, and the button has a flange, and the flange is buckled on the inner edge of the opening.

The valve body also has a mounting port, the mounting port is closed by a valve cover, the valve cover is fixed to the valve body, the valve cover has a cylinder, and one end of the elastic body is sleeved on the cylinder of the valve cover, and its The other end is sleeved on the cylinder of the spool.

The elastic body is a spring and placed laterally.

There are at least two valve bodies and at least two valve cores.

Each of the valve cores is matched with the button.

The casing is composed of an upper casing and a lower casing, and a casing cavity is formed between the upper casing and the lower casing.

The beneficial effect of the present invention is that the manual safety valve is connected in series between the air bag and the air source of the air pressure massager. During normal use, under the elastic force of the elastic body, the sealing part closes the air release port of the valve body; When the button is pressed, the valve core moves laterally against the elastic force of the elastic body, the sealing part unseals the air release port, and the gas in the valve cavity can be released instantly, which can effectively protect the user.

Description of drawings

Fig. 1 is a perspective view of the manual safety valve of the present embodiment;

Fig. 2 is the front view of the manual safety valve of the present embodiment;

3 and 4 are cross-sectional views of FIG. 2 along the B-B direction and the A-A direction, respectively.

Detailed ways

As shown in FIGS. 1 to 4 , the manual safety valve of this embodiment includes a housing 1 , two valve bodies 2 , two valve covers 3 , a button 4 , two valve cores 5 and two elastic bodies 6 . The casing 1 is composed of an upper casing 11 and a lower casing 12 , and a casing cavity 13 is formed between the upper casing 11 and the lower casing 12 . Each valve body 2 has an air inlet 21 , an air outlet 22 and an air outlet 23 , and the air inlet 21 , air outlet 22 and air outlet 23 are connected through a valve cavity 24 , that is, the valve body 2 is roughly a three-way structure. Each valve body 2 also has an installation port 25 , the installation port 25 is closed by the valve cover 3 , the valve cover 3 is fixed to the valve body 2 , and the valve cover 3 is provided with a cylinder 31 . The upper case 11 has an opening 111 through which the button 4 fits into the opening 111. The button 4 has a flange 41 with an outer diameter larger than that of the opening 111. The flange 41 buckles the edge of the opening 111 on the inside. , so as to effectively prevent the button 4 from being pulled out of the opening 111 . The two spools 5 respectively traverse the air release ports 23 of the two valve bodies and have gaps with the air release ports 23 . Each valve core 5 has a first part 51 located in the shell cavity 13 and a second part 52 located in the valve cavity 24 , the first part 51 is plug-fitted with the button 4 to realize the linkage between the button 4 and the valve core 5 , and the second part 52 has a sealing part 521 whose outer diameter is larger than that of the air release port 23 . The second part of the valve core 52 also has a cylinder 522, each elastic body 6 is placed laterally, and the two ends of each elastic body 6 are respectively sleeved on the cylinder 522 of the valve core and the cylinder 31 of the valve cover. , the elastic body 6 can expand and contract laterally, which is like an existing spring. An O-ring sealing ring 7 is sleeved on the second portion 52 of each valve core. The sealing ring 7 is elastic and deformable under pressure. The sealing ring 7 is placed between the sealing portion 521 and the air release port 23 . During normal use, under the elastic force of the elastic body 6, the air release port 23 is closed by the sealing ring 7 to prevent the gas in the valve cavity 24 from leaking; when the pressure needs to be relieved urgently, press the button 4, and the valve core 5 overcomes the elasticity. The elastic force of the body 6 moves laterally to remove the seal of the vent 23, and the high-pressure gas in the valve cavity 24 can be released instantly. The transverse direction is the direction of movement of the button.

When the manual deflation valve is in use, the air inlet 21 of the valve body is connected to the air source through the air pipe 8, and the air outlet 22 of the valve body is connected to the air bag through the air pipe. In normal use, the air release port 23 of the valve body is closed, and the high-pressure gas in the air source is delivered to the air bag, and the air pressure massage on the human body is realized through the air bag; in an emergency, press the button, the air release port 23 is unblocked, and the gas passes through the shell cavity exhausted to the outside atmosphere.

The utility model manual safety valve comprises a shell with a shell cavity, at least one valve body arranged in the shell cavity and a valve core corresponding to the valve body, the valve body has an air inlet, an air outlet, an air discharge port and a The valve cavity of the air inlet, the air outlet and the air release port, the valve cavity is provided with an elastic body, the housing is equipped with a button, the valve core crosses the air release port and is placed between the elastic body and the button, The valve core has a part located in the valve cavity, and the part is provided with a sealing part whose outer diameter is larger than that of the air release port. There can be one, two or more valve bodies, and each valve body corresponds to a valve core. Each valve body is set separately or integrally. For the sealing of the air release port, it can be sealed through the integrally formed part of the valve core with an outer diameter larger than the diameter of the air release port, which is the sealing part; it can also be sealed by an additional component. The component is arranged on the valve core, and its outer diameter also needs to be larger than the caliber of the air release port. The component is like the aforementioned sealing ring, that is, the sealing ring is equivalent to the sealing part.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (9)

1. manual safety valve, it is characterized in that: comprise the housing with shell chamber, at least one valve body that is arranged at this shell intracavity and the spool corresponding with valve body, this valve body has air inlet, gas outlet, gas vent and is communicated with the valve pocket of this air inlet, gas outlet and gas vent, be provided with elastomer in this valve pocket, on this housing button is installed, this spool cross this gas vent and place this elastomer and this button between, this spool has the part that is positioned at valve pocket, and this part is provided with the sealing of external diameter greater than this gas vent bore.

2. manual safety valve according to claim 1 is characterized in that: also be provided with the rubber-like sealing ring in the described valve pocket, the sealing snare is on this spool and between sealing portion and this gas vent.

3. manual safety valve according to claim 1 is characterized in that: described spool is pegged graft with this button and is cooperated.

4. manual safety valve according to claim 3 is characterized in that: described housing has opening, and this button is arranged on this opening, and this button has bead, and this bead is buckled on the edge of this opening inboard.

5. manual safety valve according to claim 1, it is characterized in that: described valve body also has installing port, this installing port is sealed by valve gap, this valve gap and this valve body are fixed, this valve gap has cylinder, this elastomeric end is enclosed within on the cylinder of this valve gap, and its other end is enclosed within on the cylinder of this spool.

6. manual safety valve according to claim 5 is characterized in that: described elastomer is spring and laterally places.

7. according to any described manual safety valve among the claim 1-6, it is characterized in that: described valve body has two at least, and spool is also to there being at least two.

8. manual safety valve according to claim 7 is characterized in that: described each spool all cooperates with this button.

9. manual safety valve according to claim 1 is characterized in that: described housing is made up of upper shell and lower house, and the shell chamber is formed between this upper shell and this lower house.

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