CN214860788U

CN214860788U - High-strength direct-injection type carbon dioxide valve

Info

Publication number: CN214860788U
Application number: CN202120904018.XU
Authority: CN
Inventors: 王苗泉; 何梦佳; 潘小明; 何行成; 余钟清
Original assignee: Ningbo Kaituo Valve Co ltd
Current assignee: Ningbo Kaituo Valve Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-26
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a high strength direct injection formula carbon dioxide valve, include: the valve body is provided with a working cavity, a valve outlet and a valve inlet; the valve outlet and the valve air inlet are respectively communicated with the working cavity; the position of the working cavity communicated with the valve outlet is provided with a limiting part, the limiting part comprises a first working surface close to one side of the working cavity, and the first working surface is a plane; an air inlet channel communicated with each other is arranged between the working cavity and the air inlet of the valve; a vertical pipe seat communicated with the working cavity is fixedly arranged at the bottom of the working cavity; one end of the valve rod is inserted into the valve body and is connected with a sealing assembly; the utility model provides a high strength direct injection formula carbon dioxide valve, the first working face of spacing portion and the sealed second working face that fills up are the plane of mutually supporting, are plane seal when spacing portion and sealed pad contact, and the valve rod adopts integrative rubber coating structure for sealed face lifting surface area increases, sealed pad non-deformable or fracture, factor of safety is high.

Description

High-strength direct-injection type carbon dioxide valve

Technical Field

The utility model relates to a fire-fighting equipment technical field especially relates to a high strength direct injection formula carbon dioxide valve.

Background

The fire extinguisher is a portable fire extinguishing tool, and chemical articles are placed in the fire extinguisher for rescuing and extinguishing fire. The fire extinguisher is one of common fire-proof facilities, is stored in public places or places where fire disasters may happen, and different fire extinguishers of different types are filled with different components and are specially designed for different fires. The carbon dioxide gas filled in the existing portable carbon dioxide fire extinguisher is gas with lower temperature, so that the phenomena of shrinkage and cold brittleness of rubber fittings in the valve body easily occur, and the stress area of sealing parts designed by some valves is smaller, so that the rubber fittings are cracked and deformed.

Therefore, there is a need for further research and practice of the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the technical problem that a high strength direct injection formula carbon dioxide valve is provided, the simple operation, sealing member non-deformable or fracture, factor of safety is high.

(II) technical scheme

The utility model provides a technical scheme that above-mentioned problem adopted is:

a high strength direct injection carbon dioxide valve comprising:

the valve body is provided with a working cavity, a valve outlet and a valve inlet; the valve outlet and the valve air inlet are respectively communicated with the working cavity; a limiting part is arranged at the position where the working cavity is communicated with the valve outlet, the limiting part comprises a first working surface close to one side of the working cavity, and the first working surface is a plane; an air inlet channel communicated with each other is arranged between the working cavity and the valve air inlet; a vertical pipe seat communicated with the working cavity is fixedly arranged at the bottom of the working cavity;

the valve rod is of an integrated rubber coating structure, and one end of the valve rod is inserted into the valve body and is connected with a sealing assembly; the sealing assembly comprises a sealing gasket and a fixing cap, a mounting groove is formed in the fixing cap, the sealing gasket is mounted in the mounting groove in a matching mode, one side, away from the fixing cap, of the sealing gasket extends outwards to be flush with the fixing cap to form a sealing part, the sealing part comprises a second working surface matched with the first working surface of the limiting part, and the second working surface is a plane; an elastic piece is sleeved at the other end of the valve rod, and a stop block is arranged at the top of the valve rod; one end of the elastic piece is connected with the valve body, and the other end of the elastic piece is connected with the stop block;

the handle assembly is arranged on the valve body and comprises a pressing handle and a lifting handle; the handle assembly is provided with a safety pin for limiting the movement of the pressing handle.

In the technical scheme, the first working surface of the limiting part and the second working surface of the sealing gasket are mutually matched planes, the limiting part is in plane sealing when being contacted with the sealing gasket, and the valve rod adopts an integrated rubber coating structure, so that the stress area of the sealing surface is increased, the sealing gasket is not easy to deform or crack, and the safety coefficient is high; the elastic piece is arranged outside the valve body, so that the valve body is convenient to replace; the safety pin is pulled out, the pressing handle is pressed downwards, the pressing handle rotates and presses the valve rod downwards, the elastic element is compressed, the valve rod pushes the sealing gasket to be separated from the limiting part to generate a working gap, and carbon dioxide gas is sprayed out from the outlet of the valve through the working gap.

Further, be provided with safety bolt in the valve air inlet, safety bolt includes the bolt, the bolt is close to inlet channel's one end is provided with the rupture disc, the rupture disc is kept away from one side of bolt is provided with the red copper gasket, the bolt is kept away from inlet channel's one end is provided with the safety helmet.

Among the above-mentioned technical scheme, the fire extinguisher is sealed through the insurance bolt after being full of carbon dioxide gas through the valve air inlet, through setting up rupture disc and red copper gasket, improves sealed effect.

Furthermore, a hinge is arranged between the safety pin and the carrying handle, one end of the hinge is connected with the safety pin, and the other end of the hinge is connected with the carrying handle.

Further, be provided with first sealing washer mounting groove on the valve rod, be provided with first sealing washer in the first sealing washer mounting groove, first sealing washer with the inner wall of valve body contacts.

Among the above-mentioned technical scheme, through setting up first sealing washer, prevent that carbon dioxide gas from leaking through the top of valve body.

(III) advantageous effects

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model provides a high strength direct injection formula carbon dioxide valve, the first working face of spacing portion and the sealed second working face that fills up are the plane of mutually supporting, are plane seal when spacing portion and sealed pad contact, and the valve rod adopts integrative rubber coating structure for sealed face lifting surface area increases, sealed pad non-deformable or fracture, factor of safety is high.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention;

fig. 3 is a cross-sectional view of the safety bolt at the air inlet of the valve according to the embodiment of the present invention.

Wherein: 1 is a valve body, 11 is a working cavity, 12 is a valve outlet, 13 is a valve inlet, 14 is a limiting part, 141 is a first working surface, 15 is an air inlet channel, 16 is a vertical tube seat, 17 is a safety bolt, 171 is a bolt, 172 is a safety disc, 173 is a red copper gasket, 174 is a safety cap, 2 is a valve rod, 21 is a sealing gasket, 211 is a sealing part, 212 is a second working surface, 22 is a fixing cap, 221 is an installation groove, 23 is an elastic part, 231 is a stop block, 24 is a first sealing ring, 25 is a first sealing ring installation groove, 3 is a handle component, 31 is a pressing handle, 32 is a lifting handle, 33 is a safety pin and 34 is a hinge.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Examples

As shown in fig. 1-3, the utility model provides a high strength direct injection type carbon dioxide valve, include: the valve comprises a valve body 1, wherein a working cavity 11, a valve outlet 12 and a valve inlet 13 are arranged on the valve body 1; the valve outlet 12 and the valve inlet 13 are respectively communicated with the working cavity 11; a limiting part 14 is arranged at a position where the working cavity 11 is communicated with the valve outlet 12, the limiting part 14 comprises a first working surface 141 close to one side of the working cavity 11, and the first working surface 141 is a plane; an air inlet channel 15 which is communicated with each other is arranged between the working cavity 11 and the valve air inlet 13; a vertical pipe seat 16 communicated with the working cavity 11 is fixedly arranged at the bottom of the working cavity 11; the valve rod 2 is of an integrated encapsulation structure, and one end of the valve rod 2 is inserted into the valve body 1 and connected with a sealing component; the sealing assembly comprises a sealing gasket 21 and a fixing cap 22, wherein a mounting groove 221 is formed in the fixing cap 22, the sealing gasket 21 is mounted in the mounting groove 221 in a matching manner, one side, far away from the fixing cap 22, of the sealing gasket 21 extends outwards to be flush with the fixing cap 22 to form a sealing part 211, the sealing part 211 comprises a second working surface 212 matched with the first working surface 141 of the limiting part 14, and the second working surface 212 is a plane; an elastic piece 23 is sleeved on the other end of the valve rod 2, and a stop block 231 is arranged at the top of the valve rod 2; one end of the elastic piece 23 is connected with the valve body 1, and the other end of the elastic piece 23 is connected with the stop block 231; the handle assembly 3 is arranged on the valve body 1, and the handle assembly 3 comprises a pressing handle 31 and a lifting handle 32; the handle assembly 3 is provided with a safety pin 33 for limiting the movement of the pressing handle 31.

The first working surface 141 of the limiting part 14 and the second working surface 212 of the sealing gasket 21 are mutually matched planes, the limiting part 14 is in plane sealing when contacting with the sealing gasket 21, and the valve rod 2 adopts an integrated encapsulation structure, so that the stress area of a sealing surface is increased, the sealing gasket 21 is not easy to deform or crack, and the safety factor is high; the elastic piece 23 is arranged outside the valve body 1, so that the replacement is convenient; the safety pin 33 is pulled out, the pressing handle 31 is pressed downwards, the pressing handle 31 rotates and presses the valve rod 2 downwards, the elastic element 23 is compressed, the valve rod 2 pushes the sealing gasket 21 to be separated from the limiting part 14 to generate a working gap, and carbon dioxide gas is sprayed out from the valve outlet 12 through the working gap.

A safety bolt 17 is arranged in the valve air inlet 13, the safety bolt 17 comprises a bolt 171, a safety disc 172 is arranged at one end of the bolt 171 close to the air inlet channel 15, a red copper gasket 173 is arranged at one side of the safety disc 172 far away from the bolt 171, and a safety cap 174 is arranged at one end of the bolt 171 far away from the air inlet channel 15; after the fire extinguisher is filled with carbon dioxide gas through the valve air inlet 13, the fire extinguisher is sealed through the safety bolt 17, and the sealing effect is improved by arranging the safety disc 172 and the red copper gasket 173.

A hinge 34 is arranged between the safety pin 33 and the handle 32, one end of the hinge 34 is connected with the safety pin 33, and the other end of the hinge 34 is connected with the handle 32; a first sealing ring mounting groove 25 is formed in the valve rod 2, a first sealing ring 24 is arranged in the first sealing ring mounting groove 25, and the first sealing ring 24 is in contact with the inner wall of the valve body 1; by providing the first seal ring 24, carbon dioxide gas is prevented from leaking through the top of the valve body 1.

As described above, the above embodiments are not limiting embodiments of the present invention, and modifications or equivalent variations made by those skilled in the art based on the substance of the present invention are within the technical scope of the present invention.

Claims

1. A high strength direct injection carbon dioxide valve comprising:

the valve comprises a valve body (1), wherein a working cavity (11), a valve outlet (12) and a valve inlet (13) are arranged on the valve body (1); the valve outlet (12) and the valve inlet (13) are respectively communicated with the working cavity (11); a limiting part (14) is arranged at the position where the working cavity (11) is communicated with the valve outlet (12), the limiting part (14) comprises a first working surface (141) close to one side of the working cavity (11), and the first working surface (141) is a plane; an air inlet channel (15) which is communicated with each other is arranged between the working cavity (11) and the valve air inlet (13); a vertical pipe seat (16) communicated with the working cavity (11) is fixedly arranged at the bottom of the working cavity (11);

the valve rod (2) is of an integrated encapsulation structure, and one end of the valve rod (2) is inserted into the valve body (1) and connected with a sealing assembly; the sealing assembly comprises a sealing gasket (21) and a fixing cap (22), a mounting groove (221) is formed in the fixing cap (22), the sealing gasket (21) is mounted in the mounting groove (221) in a matched mode, one side, far away from the fixing cap (22), of the sealing gasket (21) extends outwards to be flush with the fixing cap (22) to form a sealing portion (211), the sealing portion (211) comprises a second working surface (212) matched with the first working surface (141) of the limiting portion (14), and the second working surface (212) is a plane; an elastic piece (23) is sleeved at the other end of the valve rod (2), and a stop block (231) is arranged at the top of the valve rod (2); one end of the elastic piece (23) is connected with the valve body (1), and the other end of the elastic piece (23) is connected with the stop block (231);

the handle assembly (3), the handle assembly (3) is arranged on the valve body (1), and the handle assembly (3) comprises a pressing handle (31) and a lifting handle (32); the handle component (3) is provided with a safety pin (33) for limiting the movement of the pressure handle (31).

2. The high-strength direct injection type carbon dioxide valve as claimed in claim 1, wherein a safety bolt (17) is arranged in the valve air inlet (13), the safety bolt (17) comprises a bolt (171), a safety disc (172) is arranged at one end of the bolt (171) close to the air inlet channel (15), a red copper gasket (173) is arranged at one side of the safety disc (172) far away from the bolt (171), and a safety cap (174) is arranged at one end of the bolt (171) far away from the air inlet channel (15).

3. The high-strength direct injection carbon dioxide valve as claimed in claim 1, wherein a hinge (34) is provided between the safety pin (33) and the handle (32), one end of the hinge (34) is connected to the safety pin (33), and the other end of the hinge (34) is connected to the handle (32).

4. The high-strength direct injection carbon dioxide valve as claimed in claim 1, wherein a first sealing ring mounting groove (25) is formed in the valve stem (2), a first sealing ring (24) is disposed in the first sealing ring mounting groove (25), and the first sealing ring (24) is in contact with an inner wall of the valve body (1).