CN216022809U

CN216022809U - One-way valve for high-pressure carbon dioxide fire extinguishing equipment

Info

Publication number: CN216022809U
Application number: CN202122235555.2U
Authority: CN
Inventors: 刘景玮
Original assignee: Tianjin Zhengan Fire Fighting Equipment Co ltd
Current assignee: Tianjin Zhengan Fire Fighting Equipment Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-15
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a one-way valve for high-pressure carbon dioxide fire extinguishing equipment, which comprises a valve body, a connecting pipe and a mounting cap, wherein the connecting pipe is fixedly mounted at two ends of the valve body; the locating part is kept away from valve body one side and is installed first sealed pad, the connecting pipe is kept away from valve body one end and is installed the third sealing member, the sealed pad of second is installed to spacing groove one side inner wall, the sealed pad one side of second and the sealed pad one side contact of first, the sealed pad of fourth is installed to mounting hole one end inner wall. The sealing performance of the one-way valve can be improved, and the one-way valve is easy to popularize.

Description

One-way valve for high-pressure carbon dioxide fire extinguishing equipment

Technical Field

The utility model relates to the technical field of one-way valves, in particular to a one-way valve for high-pressure carbon dioxide fire extinguishing equipment.

Background

The carbon dioxide fire extinguisher utilizes the filled liquid carbon dioxide to spray out the fire extinguisher for extinguishing fire. The device comprises a cylinder, a cylinder valve, an injection system and other components. The fire extinguishing agent is low in price, easy to obtain and prepare, mainly depends on the suffocation effect and partial cooling effect to extinguish fire, and is suitable for extinguishing the initial fire of various combustible liquids and combustible gases.

And the one-way valve is arranged between the metal hose and the collecting pipe, so that the fire extinguishing agent can only flow in one direction, and the fire extinguishing agent is prevented from flowing back from the collecting pipe. However, after the existing one-way valve for carbon dioxide extinguishers is installed, the sealing performance between the connecting part and the valve body is poor, and the leakage phenomenon is easy to occur, so that the improvement is needed.

For this purpose, we propose a check valve for high pressure carbon dioxide fire extinguishing equipment.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a one-way valve for high-pressure carbon dioxide fire extinguishing equipment, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the check valve for the high-pressure carbon dioxide fire extinguishing equipment comprises a valve body, a connecting pipe and a mounting cap, wherein the connecting pipe is fixedly mounted at two ends of the valve body, a limiting part is fixedly sleeved at the outer side of the connecting pipe and is of an annular structure, the two limiting parts are arranged in parallel relatively, one end, away from the valve body, of the connecting pipe is connected with the mounting cap, a limiting groove is formed at one end, close to the valve body, of the mounting cap, a mounting hole is formed in the inner wall of one side of the limiting groove, the limiting part is located in the limiting groove, and the connecting pipe is located in the mounting hole;

the locating part is kept away from valve body one side and is installed first sealed pad, the connecting pipe is kept away from valve body one end and is installed the third sealing member, through the design of spacing groove and first thread groove, makes the installation cap be connected with the locating part.

Further, the second is sealed to install the sealed pad of spacing groove one side inner wall, the sealed pad one side of second and the sealed one side contact of first sealed pad, the sealed pad of fourth is installed to mounting hole one end inner wall, the sealed pad one side of fourth and the sealed one side contact of pad of third.

Further, first sealed pad and third sealed pad are the ring shape structure, first sealed diameter of filling up is greater than the sealed diameter of filling up of third, and first sealed pad, the sealed pad of second, the sealed pad of third and the sealed pad of fourth are the rubber material, and the diameter of first sealed pad is the same with the sealed diameter of the pad of second, and the sealed diameter of the pad of third is the same with the sealed diameter of the pad of fourth.

Further, limiting groove inner wall and the locating part outside all are equipped with first thread groove, the connecting pipe outside and mounting hole inner wall all are equipped with the second thread groove, locating part, connecting pipe all with installation cap threaded connection to be convenient for the installation and the dismantlement of installation cap.

Further, the locating part is located the sealed position of filling up of first and the spacing groove is located the sealed position of filling up of second and has all seted up first seal groove, first sealed pad, the sealed first seal groove of the equal fixed embedding of second pad.

Further, the connecting pipe is located the sealed position of filling up of third and the mounting hole is located the sealed position of filling up of fourth and has all seted up the second seal groove, sealed pad, the sealed equal fixed embedding second seal groove of fourth of third, the installation cap is equipped with two relatively.

Compared with the prior art, the utility model has the following beneficial effects: through the design of spacing groove and first thread groove, make the mounting cap can be connected with the locating part, design through the locating part, the installation of the first sealed pad of being convenient for, the installation of the sealed pad of second of being convenient for through the design of spacing groove, the sealed pad one side of second contacts with sealed pad one side of first, the sealed pad one side of fourth contacts with sealed pad one side of third, above-mentioned double seal structure's design, can further improvement the leakproofness between connecting pipe and the mounting cap, because the locating part, the connecting pipe all with mounting cap threaded connection, thereby be convenient for the installation of mounting cap and dismantlement.

Drawings

FIG. 1 is a schematic structural view of a check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to the present invention.

Fig. 2 is a perspective view of the check valve for a high pressure carbon dioxide fire extinguishing apparatus according to the present invention.

Fig. 3 is an enlarged view of a check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to the present invention at a point a in fig. 2.

FIG. 4 is a perspective view of a mounting cap of the check valve for a high pressure carbon dioxide fire extinguishing apparatus according to the present invention.

In the figure: 1. a valve body; 2. a connecting pipe; 3. installing a cap; 4. a limiting member; 5. a first gasket; 6. a second gasket; 7. a third gasket; 8. a fourth gasket; 9. a limiting groove; 10. mounting holes; 11. a first thread groove; 12. a second thread groove; 13. a first seal groove; 14. a second seal groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-4, the check valve for a high-pressure carbon dioxide fire extinguishing apparatus comprises a valve body 1, a connecting pipe 2 and a mounting cap 3, wherein the connecting pipe 2 is fixedly mounted at both ends of the valve body 1, a limiting member 4 is fixedly sleeved outside the connecting pipe 2, the limiting member 4 is of a circular ring structure, two limiting members 4 are arranged in parallel, the mounting cap 3 is connected to one end of the connecting pipe 2, which is far away from the valve body 1, the mounting cap 3 is provided with a limiting groove 9 at one end, which is close to the valve body 1, the inner wall of one side of the limiting groove 9 is provided with a mounting hole 10, the limiting member 4 is located in the limiting groove 9, and the connecting pipe 2 is located in the mounting hole 10;

the locating part 4 is kept away from valve body 1 one side and is installed first sealed 5, connecting pipe 2 is kept away from valve body 1 one end and is installed third sealing member 7, through the design of spacing groove 9 and first thread groove 11, makes mounting cap 3 can be connected with locating part 4.

Wherein, the sealed 6 of second packing is installed to 9 one side inner walls of spacing groove, the sealed 6 one side of second packing contacts with 5 one side of first packing, the sealed 8 of fourth packing is installed to mounting hole 10 one end inner wall, the sealed 8 one side of fourth packing contacts with 7 one side of third packing.

Wherein, first sealed 5 and the sealed 7 ring circular structure that are of filling up of third of filling up, first sealed 5 diameters of filling up are greater than the sealed 7 diameters of filling up of third, and first sealed 5, the sealed 6, the sealed 7 and the sealed 8 of the sealed pad of third of filling up of second are the rubber material, and first sealed 5 diameters of filling up are the same with the sealed 6 diameters of the sealed pad of second, and the sealed 7 diameters of the sealed pad of third is the same with the sealed 8 diameters of the sealed pad of fourth.

Wherein, 9 inner walls of spacing groove and the 4 outsides of locating part all are equipped with

first thread groove

11, 2 outsides of connecting pipe and the 10 inner walls of mounting hole all are equipped with second thread groove 12, locating part 4, connecting pipe 2 all with 3 threaded connection of mounting cap to be convenient for the installation and the dismantlement of mounting cap 3, connecting pipe 2 and 1 integrated into one piece of valve body.

The position of the limiting member 4 at the first sealing gasket 5 and the position of the limiting groove 9 at the second sealing gasket 6 are both provided with a first sealing groove 13, and the first sealing gasket 5 and the second sealing gasket 6 are both fixedly embedded in the first sealing groove 13.

Wherein, connecting pipe 2 is located the position that third sealed 7 of filling up and mounting hole 10 is located the position that fourth sealed 8 of filling up and has all seted up second seal groove 14, third sealed 7, fourth sealed 8 of filling up all fixed embedding second seal groove 14 in, mounting cap 3 is equipped with two relatively.

It should be noted that, in the check valve for a high-pressure carbon dioxide fire extinguishing apparatus, when in use, one end of each of the two mounting caps 3 is fixedly and hermetically connected with the corresponding pipeline, then the mounting cap 3 is in threaded connection with the connecting pipe 2, the mounting cap 3 is in threaded connection with the limiting part 4, the limiting part 4 is located in the limiting groove 9 in the mounting cap 3, one side of the first sealing gasket 5 on the limiting part 4 is in contact with one side of the second sealing gasket 6 in the limiting groove 9, and one side of the third sealing gasket 7 at one end of the connecting pipe 2 is in contact with one side of the fourth sealing gasket 8 in the mounting hole 10, so that the sealing property between the connecting pipe 2 and the mounting cap 3 can be increased, and further the sealing property of the valve body 1 is improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The check valve for the high-pressure carbon dioxide fire extinguishing equipment comprises a valve body (1), and is characterized by further comprising a connecting pipe (2) and a mounting cap (3), wherein the connecting pipe (2) is fixedly mounted at two ends of the valve body (1), a limiting part (4) is fixedly sleeved on the outer side of the connecting pipe (2), the limiting part (4) is of a circular ring structure, two limiting parts (4) are arranged in parallel relatively, one end, away from the valve body (1), of the connecting pipe (2) is connected with the mounting cap (3), one end, close to the valve body (1), of the mounting cap (3) is provided with a limiting groove (9), the inner wall of one side of the limiting groove (9) is provided with a mounting hole (10), the limiting part (4) is located in the limiting groove (9), and the connecting pipe (2) is located in the mounting hole (10);

the locating part (4) is kept away from valve body (1) one side and is installed first sealed pad (5), valve body (1) one end is kept away from in connecting pipe (2) and third sealed pad (7) are installed.

2. The check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to claim 1, wherein: the second is sealed to seal up (6) is installed to spacing groove (9) one side inner wall, the sealed pad of second (6) one side contacts with first sealed pad (5) one side, the sealed pad of fourth (8) is installed to mounting hole (10) one end inner wall, the sealed pad of fourth (8) one side contacts with the sealed pad of third (7) one side.

3. The check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to claim 1, wherein: the first sealing gasket (5) and the third sealing gasket (7) are both in circular ring structures, and the diameter of the first sealing gasket (5) is larger than that of the third sealing gasket (7).

4. The check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to claim 1, wherein: spacing groove (9) inner wall and locating part (4) outside all are equipped with first thread groove (11), the connecting pipe (2) outside and mounting hole (10) inner wall all are equipped with second thread groove (12), locating part (4), connecting pipe (2) all with mounting cap (3) threaded connection.

5. The check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to claim 1, wherein: the locating part (4) are located first sealed pad (5) position and spacing groove (9) are located second sealed pad (6) position and have all seted up first seal groove (13), first sealed pad (5), second sealed pad (6) are all fixed to be embedded in first seal groove (13).

6. The check valve for a high-pressure carbon dioxide fire extinguishing apparatus according to claim 1, wherein: connecting pipe (2) are located the sealed pad (7) position of third and mounting hole (10) are located the sealed pad (8) position of fourth and have all seted up second seal groove (14), sealed pad (7), the sealed pad (8) of fourth of third all fixedly imbed in second seal groove (14).