CN112728127A - Valve, gas cylinder and gas outlet system - Google Patents

Abstract

The invention discloses a valve, a gas cylinder and a gas outlet system. The valve, including the valve casing, be provided with first blow vent and second blow vent on the valve casing, gas passage has between first blow vent and the second blow vent, still including the limit device, the limit device includes: the piston is arranged in the gas channel, a resisting part is arranged in the gas channel, a vent hole in the middle of the resisting part is blocked when the first end of the piston is in contact with the resisting part, and the vent hole in the middle of the resisting part is in a conducting state when a gap is formed between the first end of the piston and the resisting part; the limiting assembly can limit the piston to move towards the direction close to the stopping part. The structural design of the valve can effectively improve the confusion of operation and management and reduce the loss of economic benefits.

Description

Valve, gas cylinder and gas outlet system

Technical Field

The invention relates to the technical field of valves, in particular to a valve, a gas cylinder and a gas outlet system.

Background

In recent years, liquefied petroleum gas as a novel fuel rapidly enters people's lives with the advantages of convenience, rapidness, cleanness and the like, and brings great convenience to people.

The liquefied petroleum gas steel cylinder (steel cylinder for short) utilizes means such as other control admits air to realize certain management and control in filling the use, but can't obtain effective control in liquefied gas valve delivery link of use, and the distribution operation enterprise interests can't obtain fine guarantee, and the steel cylinder is carried out the back from filling the website and is sent out illegal personnel such as worker private gas guide phenomenon very general by oneself, leads to terminal customer to use gas quality to guarantee.

These situations bring confusion in operation and management and loss of economic benefits to the liquefied petroleum gas operation enterprises, and also cause significant potential safety hazards (such as 'gas quality cannot be guaranteed', 'source tracing and responsibility tracing after accident' and the like) to the end users, seriously threaten the life and property safety of the users, and become increasingly serious problems.

In order to solve these problems, improve the level of management and administration of the lpg management enterprises and ensure the safety of the end users, it is necessary to enhance the management and control of the lpg cylinders in each link of delivery and use.

Therefore, the realization of the reasonable management and control of the liquefied petroleum gas steel cylinder becomes a technical problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In view of the above, a first object of the present invention is to provide a valve having a structural design that is effective in improving operational and management confusion and reducing economic loss, and a second object of the present invention is to provide a gas cylinder and a gas outlet system including the valve.

In order to achieve the first object, the invention provides the following technical scheme:

a valve, includes the valve casing, be provided with first blow vent and second blow vent on the valve casing, gas passage has between first blow vent and the second blow vent, still including the device of restricting out, the device of restricting out includes:

the piston is arranged in the gas channel, a resisting part is arranged in the gas channel, a vent hole in the middle of the resisting part is blocked when the first end of the piston is in contact with the resisting part, and the vent hole in the middle of the resisting part is in a conducting state when a gap is formed between the first end of the piston and the resisting part;

the limiting assembly can limit the piston to move towards the direction close to the stopping part.

Preferably, in the above valve, the limiting assembly includes a housing and a driving member disposed in the housing, the driving member is in sliding fit with the housing, and the driving member can slide relative to the housing to an end thereof close to the piston, so as to limit the piston to move in a direction close to the abutting portion.

Preferably, in the above valve, the driving member is made of a magnetic metal material;

the valve further comprises a coil matched with the driving piece, and the driving piece is driven to move towards the direction close to the piston under the action of a magnetic field of the coil after the coil is electrified so as to limit the piston to move towards the direction close to the stopping part.

Preferably, in the above valve, the limiting assembly further includes an iron core fixedly connected to the housing, the driving member is a driving ring sleeved outside the iron core, and the driving ring slides along the iron core when sliding relative to the housing;

the end part of the driving ring, which is close to the piston, is provided with a limiting bulge, and the limiting bulge is used for contacting with the piston to limit the piston to move towards the direction close to the resisting part.

Preferably, in the above valve, the limiting assembly further includes a first return spring disposed inside the housing, and one end of the first return spring abuts against the driving member and the other end of the first return spring abuts against the inner wall of the housing.

Preferably, in the above valve, the limiting assembly further includes a power member for driving the driving member to slide.

Preferably, in the above valve, the piston includes a piston rod, a piston head fixedly connected to the first end of the piston rod, and a baffle fixedly connected to the piston rod, a gap is formed between the baffle and the plug head, and the driving member can slide until its end portion near the piston extends into the gap between the baffle and the plug head;

the edge of the side face, facing the plug head, of the baffle is provided with a guide inclined face.

Preferably, the valve further includes a second return spring, and the second return spring can drive the piston to move toward the direction approaching the abutting portion.

A gas cylinder comprising a cylinder body and a valve as claimed in any one of the above claims, the valve being disposed at the mouth of the cylinder body.

An air egress system, comprising:

according to the gas cylinder, the driving piece of the valve of the gas cylinder is made of magnetic metal;

a coil cooperating with the drive member and a power source capable of supplying power to the coil.

When the valve provided by the embodiment is applied, when other manufacturers or individuals want to use the valve, the gas flow discharged enters the gas channel through the first gas vent, the piston in the gas channel can move towards the direction close to the resisting part under the action of the gas pressure of the gas flow until the first end of the piston is abutted against the resisting part, the piston plugs the vent hole in the middle of the resisting part at the moment, the gas channel is in a non-conduction state, the gas in the gas cylinder can not flow out through the gas channel, the purpose of gas discharge limitation is realized, and the gas cylinder can be prevented from being used by other manufacturers or individuals privately.

When this factory used the gas cylinder, start spacing subassembly, spacing subassembly can prevent the piston to move towards the direction that is close to the department of blocking this moment, has the clearance between the first end of piston and the department of blocking, and when giving vent to anger, the gas in the gas cylinder can flow out behind first blow vent, gas channel, the air vent and the second blow vent of department of blocking.

Therefore, when the valve provided by the invention is used, the air can be discharged when the piston is limited to move by the limiting component, and the air cannot be discharged when the piston is not limited to move. Therefore, other manufacturers or individuals can be prevented from using the gas cylinder privately, and the condition of disordered use is improved.

In order to achieve the second object, the invention also provides a gas cylinder and a gas outlet system, wherein the gas cylinder and the gas outlet system comprise any one of the valves. Because the valve has the technical effects, the gas cylinder and the gas outlet system with the valve also have corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a partial cross-sectional view of a valve in a gas-restricted state according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a valve in a venting state according to an embodiment of the present invention;

fig. 3 is an external schematic view of a valve according to an embodiment of the present invention.

In fig. 1-3:

1-valve shell, 2-shell, 3-iron core, 4-driving ring, 5-first return spring, 6-second return spring, 7-piston and 8-base.

Detailed Description

A first object of the present invention is to provide a valve having a structural design effective for improving operational and management confusion and reducing economic loss, and a second object of the present invention is to provide a gas cylinder and a gas outlet system including the valve.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-3, the valve of the present invention includes a valve housing 1, wherein a first vent and a second vent are disposed on the valve housing 1, and a gas passage is disposed between the first vent and the second vent. The first and second vent ports are used to communicate the outside and inside of the valve housing 1. The first vent port is for connection with the gas cylinder, i.e. the first vent port is for communication with the interior of the gas cylinder. The gas channel is used for communicating the first vent and the second vent, in other words, the two ends of the gas channel are the first vent and the second vent respectively.

The important point is that the valve further comprises a limiting device, and the limiting device comprises a piston 7 and a limiting assembly. Wherein the piston 7 is arranged in the gas channel along which the piston 7 can slide. The gas channel is provided with a resisting part which is positioned between the piston 7 and the second vent. The middle of the resisting part is hollow to form a vent hole, the vent hole in the middle of the resisting part is blocked when the first end of the piston 7 is in contact with the resisting part, and the gas channel is in a non-conducting state at the moment. Namely, when the first end of the piston 7 is abutted against the abutting portion, the first end can block the vent hole in the middle of the abutting portion, and then the gas can not flow out of the gas cylinder through the gas channel. The first end of the piston 7 is the end of the piston 7 near the abutment.

When a gap is formed between the first end of the piston 7 and the resisting part, the vent hole in the middle of the resisting part is in a conducting state. When the first end of the piston 7 is not abutted against the abutting part, gas can flow out of the gas cylinder through the gas channel.

The limiting component can limit the piston 7 to move towards the direction close to the resisting part.

When the valve provided by the embodiment is applied, when other manufacturers or individuals want to use the valve, the gas flow discharged enters the gas channel through the first gas vent, the piston 7 in the gas channel can move towards the direction close to the resisting part under the action of the gas pressure of the gas flow until the first end of the piston 7 is abutted against the resisting part, at the moment, the piston 7 blocks the vent hole in the middle of the resisting part, the gas channel is in a non-conduction state, and the gas in the gas cylinder can not flow out through the gas channel, so that the purpose of gas limiting is realized, and the gas cylinder can be prevented from being used by other manufacturers or individuals under the private circumstances.

When this factory used the gas cylinder, start spacing subassembly, spacing subassembly can prevent the piston 7 to move towards the direction that is close to the portion of keeping out this moment, has the clearance between the first end of piston 7 and the portion of keeping out, and when giving vent to anger, the gas in the gas cylinder can flow out behind first blow vent, gas channel, the air vent and the second blow vent of portion of keeping out.

Therefore, when the valve provided by the invention is used, the air can be discharged when the piston 7 is limited to move by the limiting component, and the air cannot be discharged when the piston 7 is not limited to move. Therefore, other manufacturers or individuals can be prevented from using the gas cylinder privately, and the condition of disordered use is improved.

Preferably, the limiting assembly comprises a housing 2 and a driving member arranged in the housing 2, the driving member is in sliding fit with the housing 2, and the driving member can slide relative to the housing 2 until the end part of the driving member close to the piston 7 can limit the piston 7 to move towards the direction close to the abutting part. If the end of the driver close to the piston 7 is the first end, the first end of the driver can slide to the first end of the driver to limit the piston 7 from moving toward the valve element when the first end of the driver slides toward the piston 7.

When the gas outlet device is used in a factory, the limiting assembly is started, the driving piece slides towards the direction close to the piston 7, the driving piece slides to the first end of the driving piece to limit the piston 7 to move towards the direction close to the stopping part, the limiting effect of the driving piece can prevent the piston 7 from moving towards the direction close to the stopping part, and gas can flow out through the gas channel and the vent hole of the stopping part when gas is discharged. When the valve provided by the invention is used, the limiting or non-limiting of the piston 7 can be realized through the sliding of the driving piece, the air can be discharged when the piston 7 is limited to move, and the air cannot be discharged when the piston 7 is not limited to move. Therefore, other manufacturers or individuals can be prevented from using the gas cylinder, and the situation of disordered use is prevented.

In the above embodiment, the driving member is made of a magnetic metal material. The valve further comprises a coil which is matched with the driving piece, and the magnetic field of the coil drives the driving piece to move towards the direction close to the piston 7 after the coil is electrified so as to limit the piston 7 to move towards the direction close to the resisting part. That is, after the coil is energized, the driving member is magnetically acted in the magnetic field to move in a direction approaching the piston 7, and the first end of the driving member restricts the piston 7 from moving in a direction approaching the abutting portion.

In the above embodiment, the driving member may be an aluminum member or other non-ferromagnetic metal member, and the coil may be disposed on the valve or other devices, and the valve may be used in cooperation with other devices. Preferably, when the driving member is made of other non-ferromagnetic metal material, the coil is arranged on other equipment so as to design the volume of the coil.

Further, spacing subassembly still includes the iron core 3 with shell 2 fixed connection, and the driving piece is the cover and is established at the outside driving ring 4 of iron core 3, and driving ring 4 slides along iron core 3 when sliding for shell 2. So set up, more stable when the driving piece slides, can prevent the dislocation. In addition, the iron core 3 can increase the stress of the driving piece, so that the driving piece can slide rapidly.

In order to facilitate the cooperation with the piston 7, the end of the driving ring 4 close to the piston 7 is provided with a limit protrusion for contacting with the piston 7 to limit the movement of the piston 7 to the direction close to the resisting portion. The shape of the limit projection can be a rod, so that the end part of the driving ring 4 is prevented from being wholly abutted against the piston 7.

In addition, the limiting assembly can further comprise a first return spring 5 arranged inside the shell 2, one end of the first return spring 5 abuts against the driving piece, and the other end of the first return spring abuts against the inner wall of the shell 2. All be provided with the butt arch on 2 inner walls of shell and the driving piece, the both ends of first reset spring 5 respectively with 2 inner walls of shell and the protruding counterbalance of butt on the driving piece. The first return spring 5 acts to disengage the first end of the driver from the piston 7. After the air outlet is finished, other external forces disappear, and the elastic force of the first return spring 5 drives the driving piece to move towards the direction far away from the piston 7, so that the first end of the driving piece is separated from the piston 7.

Preferably, the driving member compresses the first return spring 5 when sliding in the direction close to the piston 7, and when the air outlet is completed, other external force disappears, and the elastic force of the first return spring 5 drives the driving member to return.

I.e. when the coil is de-energised, the magnetic field disappears and the first end of the driver member is now separated from the piston 7 by the action of the first return spring 5.

Of course, the limiting assembly can also comprise a power part for driving the driving part to slide along the guide hole.

The power part can be a motor or a cylinder. Alternatively, the power member may be a worm gear mechanism, etc., and is not limited herein.

In a particular embodiment, the piston 7 comprises a piston rod, a piston head and a baffle. The piston head is fixedly connected with the first end of the piston rod. The baffle is fixedly connected with the piston rod, and the baffle is connected with the middle part of the piston rod. There is a gap between the baffle and the plug, and the driving member can slide until its end near the piston 7 extends into the gap between the baffle and the plug. After the driving piece can slide to the end part of the driving piece close to the piston 7 and stretch into the gap between the baffle and the plug head, the driving piece can prevent the baffle from moving towards the direction close to the resisting part, and then the driving piece can prevent the piston 7 from moving towards the direction close to the resisting part.

Further, the edge of the side face, facing the plug head, of the baffle is provided with a guide inclined face, so that the driving piece can slide along the guide inclined face.

In a specific embodiment, the abutment may be embodied as a conical bore, the cross-section of which tapers in a direction away from the piston 7. So set up, the piston head moves along the taper hole, and until the piston head offsets with the inner wall of taper hole, and then can block up the taper hole.

In the above embodiment, the piston head has a spherical crown shape, and the cross section of the spherical crown shape gradually increases in a direction away from the stopper portion.

Of course, the piston head may also be frustum-shaped, and is not limited herein.

The resisting part may also be an annular protrusion, which is not limited herein.

In addition, the valve may further include a second return spring 6, and the second return spring 6 may drive the piston 7 to move toward the abutting portion. When the driving member is separated from the piston 7, the elastic force of the second return spring 6 drives the piston 7 to move towards the direction close to the stopping portion, so that the valve returns to the gas-limiting state.

The inside of valve casing 1 is provided with base 8, and the both ends of second reset spring 6 offset with baffle and base 8 respectively. When the coil is de-energised the magnetic field disappears and the first end of the drive member is now separated from the piston 7 by the action of the first return spring 5. The action of the second return spring 6 drives the piston 7 to move towards the direction close to the resisting part, so that the piston head blocks the through hole in the middle of the resisting part, and the valve returns to the air-out limiting state.

The housing 2 and the valve housing 1 may be of an integral structure to facilitate manufacturing.

Based on the valve provided in the embodiment, the invention also provides a gas cylinder, which comprises a gas cylinder body and any one of the valves in the embodiment, wherein the valve is arranged at the bottle mouth of the gas cylinder body. Because the valve in the above embodiment is adopted in the gas cylinder, please refer to the above embodiment for the beneficial effect of the gas cylinder.

The invention also provides an air outlet system which comprises any one of the air cylinders, wherein a driving piece of a valve of the air cylinder is made of a magnetic metal material. The air outlet system further comprises a coil matched with the driving piece and a power supply capable of supplying power to the coil. When the air outlet system works, air outlet or air outlet limitation is realized by controlling the on-off of the power supply and the coil. When the power supply supplies power to the coil, the driving piece can move towards the direction close to the piston 7 under the action of magnetic force in the magnetic field, and then the first end of the driving piece limits the piston 7 to move towards the direction close to the stopping part. When the power supply stops supplying power to the coil, the magnetic field disappears, and the valve can return to the air-out limiting state.

In the above embodiments, the coil may be located on the valve or on other devices. Where the other device may be an air egress device.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (10)

1. The utility model provides a valve, includes valve casing (1), be provided with first blow vent and second blow vent on valve casing (1), gas passage has between first blow vent and the second blow vent, its characterized in that still includes and restricts out the device, it includes to restrict out the device:

the piston (7) is arranged in the gas channel, a resisting part is arranged in the gas channel, the vent hole in the middle of the resisting part is blocked when the first end of the piston (7) is in contact with the resisting part, and the vent hole in the middle of the resisting part is in a conducting state when a gap is formed between the first end of the piston (7) and the resisting part;

the limiting assembly can limit the piston (7) to move towards the direction close to the stopping part.

2. The valve according to claim 1, wherein the limiting assembly comprises a housing (2) and a driving member arranged in the housing (2), the driving member is in sliding fit with the housing (2), and the driving member can slide relative to the housing (2) until the end of the driving member close to the piston (7) can limit the piston (7) from moving towards the abutting portion.

3. The valve according to claim 2, wherein the driving member is made of a magnetic metal material;

the valve further comprises a coil matched with the driving piece, and the driving piece is driven by the magnetic field of the coil to move towards the direction close to the piston (7) after the coil is electrified so as to limit the piston (7) to move towards the direction close to the stopping part.

4. The valve according to claim 3, wherein the limiting assembly further comprises an iron core (3) fixedly connected with the housing (2), the driving member is a driving ring (4) sleeved outside the iron core (3), and the driving ring (4) slides along the iron core (3) when sliding relative to the housing (2);

the end part of the driving ring (4) close to the piston (7) is provided with a limiting bulge, and the limiting bulge is used for being in contact with the piston (7) to limit the piston (7) to move towards the direction close to the resisting part.

5. The valve according to claim 2, wherein the limiting assembly further comprises a first return spring (5) disposed inside the housing (2), one end of the first return spring (5) abuts against the driving member and the other end abuts against the inner wall of the housing (2).

6. The valve of claim 2, wherein the stop assembly further comprises a power member for driving the driving member to slide.

7. The valve according to claim 2, wherein the piston (7) comprises a piston rod, a piston head fixedly connected to a first end of the piston rod, and a baffle fixedly connected to the piston rod, wherein a gap is provided between the baffle and the plug, and the driving member is slidable until an end portion thereof adjacent to the piston (7) extends into the gap between the baffle and the plug;

the edge of the side face, facing the plug head, of the baffle is provided with a guide inclined face.

8. Valve according to claim 1, further comprising a second return spring (6), said second return spring (6) being capable of driving said piston (7) towards a direction approaching said abutment.

9. A gas cylinder comprising a cylinder body and a valve as claimed in any one of claims 1 to 8, the valve being provided at the mouth of the cylinder body.

10. An air outlet system, comprising:

the gas cylinder according to claim 9, wherein a driving member of a valve of the gas cylinder is made of a magnetic metal material;

a coil cooperating with the drive member and a power source capable of supplying power to the coil.

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