WO2016078534A1

WO2016078534A1 - Hand-operated switch of foot-operated pneumatic valve

Info

Publication number: WO2016078534A1
Application number: PCT/CN2015/094400
Authority: WO
Inventors: 王永革
Original assignee: 王永革
Priority date: 2014-11-19
Filing date: 2015-11-12
Publication date: 2016-05-26
Also published as: CN204267839U

Abstract

Disclosed is a hand-operated switch of a foot-operated pneumatic valve. A cylindrical opening (13) is provided on a valve cover (4), the opening (13) is in communication with the outside, a switch column (14) is provided at the opening (13), the switch column (14) is slidably connected to the opening (13), the middle part of the switch column (14) is provided with a seal ring (15), a switch collar (16) is provided above the switch column (14), the middle part of the switch column (14) is provided with an air hole (17), and the air hole (17) enable a cavity in a valve body (1) to communicate with the outside. By using a hand-operated mechanical switch, when an actuating element is damaged, the valve can directly communicate with a water path by pressing the switch collar so that a water flow is not foot-controlled by the pneumatic valve. The device achieves the technical effects of using the device only as a hand-operated switch when the valve is damaged and there is a need to perform an emergency treatment or in the case that the foot operation mode is inconvenient to be used, or alternatively using the device in two switch modes at will.

Description

Manual switch for pedal pneumatic valve

Technical field

The utility model relates to a valve switch, in particular to a manual switch for a pedal pneumatic valve.

Background technique

At present, the main working principle of the pedal pneumatic valve sold on the market is that the valve is opened and closed by the balance between the elastic force provided by the spring and the magnetic force of the magnet. The pedal pneumatic valve is characterized by low cost. The simple structure makes it easy for users to interact with humans and machines, and the precise water use can significantly reduce water consumption and save energy. Production, maintenance and use are convenient because no other auxiliary energy sources are used. Although the infrared inductive faucet has been fully recognized and widely used in the market, due to the need for electrical and control circuits, there is a loss of additional energy. The installation requires a major modification of the site, and the production and installation costs and failure rates are high. E-waste after scrapping can also cause pollution.

Although the structure of the pedal pneumatic valve is simple and reduces the point of failure, it may also be faulty due to environmental and material changes. For example, due to water quality problems, rusting of the metal parts in the internal parts may cause mechanical failure or even failure. Will affect the normal opening and closing of the valve, delay water use. In order to solve the problem that the faulty valve quickly returns to normal or guarantees water supply, a manual mechanical switch is provided for the original pedal pneumatic valve, and the pedal valve can be forcibly opened and closed by mechanical force. There is a need for a foot valve with a manual switch. When the foot valve fails, it can be handled urgently to ensure water supply. It can also be used as a manual switch for manual valves or faucets.

Summary of the invention

The utility model aims to provide a manual switch for a pedal pneumatic valve, so as to solve the emergency treatment when the pedal pneumatic valve fails, so that the pedal valve relies on a manual switch to ensure immediate normal water use. Or even if the valve does not malfunction, it can be used as a manual switch alone when the user is inconvenient to use the pedal.

The utility model adopts the following technical solutions:

A manual switch for a pedal pneumatic valve, comprising: a valve body (1), a valve seat air chamber (2), a valve cover (4), an air bag (5), an armature (6), a ring magnet (7), an air bag Reset spring (8), armature return spring (9), sealing diaphragm (10);

The valve body is a hollow cavity, the top of the valve body (1) is sealed by the valve cover (2), and the bottom of the valve body (1) is fixedly connected with the valve seat air chamber (2), a valve seat chamber (2) is provided with a hollow valve seat chamber; a lower portion of the valve body (1) is provided with a partition plate (11), and the partition plate (11) divides the valve body (1) into upper a chamber and a lower chamber; the lower chamber is in communication with the valve seat chamber;

In the upper chamber, the partition plate (11) is provided with a cylindrical hollow plastic sleeve (12) and communicates with the upper and lower chambers; the plastic sleeve (12) is externally sleeved with a balloon return spring ( 8) and a ring magnet (7), an upper end of the air bag return spring (8) is fixed in the ring magnet (7), and an air bag (5) is disposed above the plastic tube (12), the air bag (5) a lower portion of the airbag (5) is fixed to the annular magnet (7);

The middle portion of the air bag is provided with a rigid center tube (3) and its lower end is fixed on the ring magnet (7), and the center tube (3) is sleeved with the plastic sleeve (12).

The valve cover is provided with a cylindrical opening (13), a middle portion of the switch column (14) is slidably connected to the opening, and a middle portion of the switch column (14) is provided with a sealing ring (15) to seal the opening (13) The switch column (14) is located outside the valve body and is fixed with a switch collar (16). The middle of the switch column (14) is provided with a gas hole (17), and the air hole (17) will be the valve The inside of the body (1) is in communication with the outside, the lower end of the switch column (14) is located in the valve body and is disposed to press against the top of the central pipe (3), and the top of the switch column (14) communicates with the intake pipe .

The lower end of the switch column (14) is provided with a trapezoidal opening (18), and the bottom of the switch column is provided with a protruding collar (19).

A locking collar (20) is disposed under the switch collar (16) of the switch post (14), the locking collar (20) is provided with an external thread, and the inside of the cylindrical opening (13) is provided with Corresponding internal thread.

The plastic sleeve (12) is internally provided with the armature return spring (9), the armature return spring (9) is provided with an armature (6), and the armature (6) is inside the plastic sleeve (12). Sliding connection

The bottom and sides of the valve seat plenum (2) are provided with two vertical and horizontal nozzles communicating with the outside, and the lower chamber is provided with a sealing membrane (10) for the lower chamber and the valve seat The chamber is spaced apart, the sealing membrane (10) is slidably connected to the inner chamber of the lower chamber, and the sealing membrane (10) is provided with a central hole (101), a central hole (101) and the vertical nozzle ( 21) The plastic sleeve (12) is oppositely disposed, and a sealing hole (102) is disposed around the sealing membrane, and the pressure maintaining hole (102) communicates with the lower chamber and the valve seat chamber.

The advantages of the utility model are as follows:

1. When the manual action switch is used, when the action component is damaged, press the switch collar, the water flow does not pass the pedal control of the pneumatic valve, and directly connects the waterway.

2. The sealing ring is used to cooperate with the switch column to slide up and down, and the locking collar structure is further arranged to lock the sliding position, and the structure is more stable.

3. The trapezoidal structure connects the gas source and the internal gas path of the airbag. After the switch post is inserted into the opening, the collar is stuck at the lower end of the opening, and the installation is simple and convenient.

4. Simple structure, practical and reliable.

BRIEF DESCRIPTION OF THE DRAWINGS:

Figure 1 is a schematic view of the external structure of the present invention;

2 is a schematic structural view of a switch column of the present invention;

Figure 3 is a schematic view showing the internal opening state of the utility model;

Figure 4 is a schematic view showing the internal closed state of the present invention;

detailed description

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

The following examples are merely illustrative of the present invention and are not intended to limit the embodiments of the invention. Other variations or modifications may be made to those skilled in the art based on the following description, and such obvious changes or variations resulting from the spirit of the present invention are still protected by the present invention. In the range.

According to FIG. 1-4, a manual switch for a pedal pneumatic valve includes: a valve body 1, a valve seat air chamber 2, a valve cover 4, an air bag 5, an armature 6, a ring magnet 7, and a balloon return spring 8, An armature return spring 9, a sealing membrane 10;

The valve body is a hollow cavity, the top of the valve body 1 is sealed by the valve cover 2, the bottom of the valve body 1 is fixedly connected with the valve seat air chamber 2, and the valve seat air chamber 2 is provided with a hollow a valve seat chamber; a lower portion of the valve body 1 is provided with a partition 11 that divides the valve body 1 into an upper chamber and a lower chamber; the lower chamber and the valve seat chamber Room communication

In the upper chamber, the partition plate 11 is provided with a cylindrical hollow plastic sleeve 12 and communicates with the upper and lower chambers; the plastic sleeve 12 is externally sleeved with a balloon return spring 8 and a ring magnet 7 The upper end of the air bag return spring 8 is fixed in the ring magnet 7, and the air tube 5 is disposed above the plastic tube 12, the air bag 5 is an elastic member that is up-and-down telescopic, and the lower portion of the air bag 5 is fixed on the ring magnet 7;

a central portion 3 is disposed in the middle of the airbag, and a lower end is fixed on the annular magnet 7, and the central tube 3 is sleeved with the plastic sleeve 12;

The bonnet is provided with a cylindrical opening 13 , and a middle portion of the switch column 14 is slidably connected to the opening, and a middle portion of the switch column 14 is provided with a sealing ring 15 to seal the opening 13 , and the switch column 14 is located above a switch collar 16 is disposed outside the valve body, and a vent hole 17 is disposed in a middle portion of the switch column 14. The air hole 17 communicates with the outside of the valve body 1 in a cavity, and the lower end of the switch column 14 is located in the valve body. It is arranged to press against the top of the central pipe 3, and the top of the switch column 14 communicates with the intake pipe.

The lower end of the switch column 14 is provided with a trapezoidal opening 18, and the bottom of the switch column is provided with a protruding collar 19. When the switch column 14 slides up and down, the collar 19 abuts against the end of the opening 13 so that the switch post 14 does not slide out of the opening 13.

A locking collar 20 is disposed below the switch collar 16 of the switch post 14. The locking collar 20 is provided with an external thread, and the inside of the cylindrical opening 13 is provided with an internal thread corresponding thereto.

The armature return spring 9 is disposed inside the plastic sleeve 12, and the armature return spring 9 is disposed at an lower portion thereof, and the armature 6 is slidably connected in the plastic sleeve 12;

The bottom and sides of the valve seat plenum 2 are provided with two vertical and horizontal nozzles communicating with the outside, and the lower chamber is provided with a sealing membrane 10 separating the lower chamber from the valve seat chamber The sealing film 10 is slidably connected to the inner chamber of the lower chamber, and the sealing film 10 is provided with a central hole 101, and the central hole 101 is opposite to the vertical nozzle 21 and the opening of the plastic sleeve 12, the sealing A pressure maintaining hole 102 is disposed around the diaphragm, and the pressure maintaining hole 102 communicates with the lower chamber and the valve seat chamber.

The specific working process is as follows. When the pedal valve of the present invention is working normally, the switch column 14 is lifted up, and an external air source enters the inner cavity of the air bag 5 through the air hole 17 or is discharged, thereby realizing pulling of the air bag 5 Stretching or compressing, by balancing the elastic force of the airbag return spring 8 and the magnetic force of the ring magnet 7, the armature 6 is pressed or lifted by the armature 6, thereby isolating and opening the water inlet 22 and the The passage between the drains 21 is used to control the flow of water.

When the components of the pedal pneumatic valve of the present invention fail to be used normally, press the said The switch collar 16, when the switch column 14 is pressed, the elastic force of the air bag return spring 8 is disabled, the air bag 5 is forcibly stretched, and the magnetic force of the ring magnet 7 lifts the armature 6 The passage between the water inlet 22 and the water outlet 21 is opened, the valve body is in a normally open state, and the switch column 14 is rotated, the external thread of the locking collar 20, and the inside of the switch column 14 After the thread is screwed, the switch column 14 cannot be lifted, and the sealing ring 15 and the inner wall of the switch column 14 are matched to meet the functional requirements, and the threaded screw is used for double safety. At this time, the water flow can be controlled to open and close by an external faucet. It is also possible to pull up and press the switch column 14 to convert the foot valve into a manual valve or faucet.

Claims

A manual switch for a pedal pneumatic valve, comprising a valve body (1), a valve seat air chamber (2), a valve cover (4), an air bag (5), an armature (6), a ring magnet (7), and a balloon reset Spring (8), armature return spring (9), sealing diaphragm (10);

The valve body is a hollow cavity, the top of the valve body (1) is sealed by the valve cover (2), and the bottom of the valve body (1) is fixedly connected with the valve seat air chamber (2), a valve seat chamber (2) is provided with a hollow valve seat chamber; a lower portion of the valve body (1) is provided with a partition plate (11), and the partition plate (11) divides the valve body (1) into upper a chamber and a lower chamber; the lower chamber is in communication with the valve seat chamber;

In the upper chamber, the partition plate (11) is provided with a cylindrical hollow plastic sleeve (12) and communicates with the upper and lower chambers, and the outer sleeve of the plastic sleeve (12) is sleeved with a balloon return spring ( 8) and a ring magnet (7), an upper end of the air bag return spring (8) is fixed in the ring magnet (7), and an air bag (5) is disposed above the plastic tube (12), the air bag (5) A lower portion of the airbag (5) is fixed to the annular magnet (7) for an elastic member that is stretched up and down; and is characterized in that:

a central portion (3) is disposed in the middle of the airbag, and a lower end is fixed on the annular magnet (7), and the central tube (3) is sleeved with the plastic sleeve (12);

The valve cover is provided with a cylindrical opening (13), a middle portion of the switch column (14) is slidably connected to the opening, and a middle portion of the switch column (14) is provided with a sealing ring (15) to seal the opening (13) The switch column (14) is located outside the valve body and is fixed with a switch collar (16). The middle of the switch column (14) is provided with a gas hole (17), and the air hole (17) will be the valve The inside of the body (1) is in communication with the outside, the lower end of the switch column (14) is located in the valve body and is disposed to press against the top of the central pipe (3), and the top of the switch column (14) communicates with the intake pipe .
The manual switch of a pedal pneumatic valve according to claim 1, wherein a lower end of the switch column (14) is provided with a trapezoidal opening (18), and a bottom of the switch column is provided with a protruding collar ( 19).
A manual switch for a pedal pneumatic valve according to claim 1, wherein said opening A locking collar (20) is disposed under the switch collar (16) of the closing column (14), the locking collar (20) is provided with an external thread, and the inner side of the cylindrical opening (13) is provided with a corresponding internal thread.
A manual switch for a pedal pneumatic valve according to claim 1, wherein said plastic sleeve (12) is internally provided with said armature return spring (9), and said armature return spring (9) is disposed at a lower portion There is an armature (6), and the armature (6) is slidably connected within the plastic sleeve (12).
The manual switch of a pedal pneumatic valve according to claim 1, wherein the bottom and the side of the valve seat air chamber (2) are provided with two vertical and horizontal nozzles communicating with the outside, the lower The chamber is provided with a sealing membrane (10) separating the lower chamber from the valve seat chamber, and the sealing membrane (10) is slidably connected to the lower chamber inner chamber, the sealing membrane ( 10) a central hole (101) is disposed, the central hole (101) is opposite to the vertical nozzle (21) and the plastic sleeve (12), and a pressure maintaining hole (102) is disposed around the sealing membrane. The pressure maintaining hole (102) communicates with the lower chamber and the valve seat chamber.