CN210290882U - Medical gas safety valve - Google Patents

Abstract

The utility model discloses a medical gas safety valve, which comprises a valve body, separate into two cavitys through the baffle in the middle of the inside of valve body, open the inside of baffle has a plurality of drainage grooves, open the inside of baffle has the draw-in groove, and the both sides cavity communicates each other through drainage groove and draw-in groove, the inside of draw-in groove is closely laminated and is had the spheroid, the pull rod has been inserted in the middle of the inside of baffle, and the pull rod links to each other with the spheroid is fixed. This medical gas safety valve, be connected with gas container through dividing into two cavitys with the valve body, can control exhaust gas's pressure and the inside atmospheric pressure of container at rated safe atmospheric pressure within range, greatly increased security performance, the while has also saved the operation that the staff carries out the connection through many logical pipelines and a plurality of relief valves, the use of staff has been made things convenient for, arrange the pipe that pressure messenger rubber sleeve inflation hugs closely the gas appliances of connecting through the through-hole, greatly increased sealing performance, the effectual gaseous revealing of having prevented.

Description

Medical gas safety valve

Technical Field

The utility model relates to a relief valve technical field specifically is a medical gas relief valve.

Background

The gas safety valve is divided into the following structural forms: can be divided into closed type and non-closed type. The closed safety valve is used for discharging the discharged medium to a designated place along an outlet without leaking, and is generally used in toxic and corrosive media. For the safety valve for air and steam, a non-closed safety valve is basically adopted, the existing medical gas safety valve can only control the pressure of discharged gas, when the environmental temperature is overhigh, the pressure in a gas container can be increased, even the container is burst, the safety performance is greatly reduced, the operation of connecting a worker with a plurality of safety valves through a multi-way pipeline is required, the worker is inconvenient to operate, meanwhile, when harmful gas or anesthetic gas is used, the sealing performance of equipment connection is particularly important, the existing safety valve can not ensure the connection tightness only through the connection of a sealing ring and the like, the capacity of the gas container for bearing the gas pressure can be gradually reduced according to the service life, the existing safety valve can not change the rated pressure relief pressure according to the actual condition of the container, and the gas container can not bear the overlarge gas pressure and is damaged, greatly reducing the service life of the container.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical gas safety valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a medical gas safety valve comprises a valve body, wherein the middle inside of the valve body is divided into two cavities through a baffle plate, a plurality of drainage grooves are formed in the baffle plate, a clamping groove is formed in the baffle plate, the cavities on two sides are communicated with each other through the drainage grooves and the clamping groove, a ball body is tightly attached to the inside of the clamping groove, a pull rod is inserted into the middle inside of the baffle plate and is fixedly connected with the ball body, a first compression spring is movably sleeved on the outer wall of the pull rod, two sides of the compression spring are respectively attached to the pull rod and the baffle plate, a gland is arranged below the valve body, two sides above the gland are respectively communicated with the two cavities through a second guide pipe and the first guide pipe, a valve is rotatably connected to the inside of the second guide pipe, a piston is tightly attached to the inside of the first guide pipe, and a second compression spring is fixedly connected to one side, far away, one side rigid coupling that the piston was kept away from to second compression spring has the clamp plate, the internal thread of first pipe links to each other there is the double-screw bolt, and the double-screw bolt passes through the bearing and rotates with the clamp plate and link to each other, one side that the valve body is close to first pipe is opened there is the export, one side rigid coupling that the export was kept away from to the valve body has the nozzle, the outer wall annular groove of nozzle, open the inside of annular groove has a plurality of through-holes, the rubber sleeve has been cup jointed to the inside of annular groove, and the both ends of rubber sleeve link to each other with the inner.

Compared with the prior art, the beneficial effects of the utility model are that: this medical gas safety valve, be connected with gas container through dividing into two cavitys with the valve body, can control exhaust gas's pressure and the inside atmospheric pressure of container at rated safe atmospheric pressure within range, greatly increased security performance, the while has also saved the operation that the staff carries out the connection through many logical pipelines and a plurality of relief valves, the use of staff has been made things convenient for, discharge through the through-hole and press the pipe that makes the rubber sleeve inflation hug closely the gas appliances of connecting, greatly increased sealing performance, the effectual gaseous revealing of having prevented, cooperation through double-screw bolt and clamp plate, can make things convenient for the staff to adjust rated pressure release according to gas container's actual conditions, avoid the container to use after for a long time unable too big atmospheric pressure and damage, greatly increased the life of container.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the left-side view connection structure of the nozzle, the through hole and the rubber sleeve in fig. 1 of the present invention.

In the figure: 1. the valve comprises a valve body, 2, a pull rod, 3, a first compression spring, 4, a ball body, 5, a drainage groove, 6, a stud, 7, a pressure plate, 8, a second compression spring, 9, a piston, 10, a first guide pipe, 11, a gland, 12, a valve, 13, a nozzle, 14, a through hole, 15, a rubber sleeve, 16 and a second guide pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a medical gas safety valve comprises a valve body 1, the middle inside of the valve body 1 is divided into two cavities through a baffle, a plurality of drainage grooves are formed in the baffle, clamping grooves are formed in the baffle, the cavities on two sides are communicated with each other through the drainage grooves and the clamping grooves, a ball body 4 is tightly attached to the inside of the clamping grooves, the ball body 4 is made of rubber, a pull rod 2 is inserted into the middle inside of the baffle, the pull rod 2 is fixedly connected with the ball body 4, a first compression spring 3 is movably sleeved on the outer wall of the pull rod 2, two sides of the compression spring 3 are respectively attached to the pull rod 2 and the baffle, a gland 11 is arranged below the valve body 1, two sides above the gland 11 are respectively communicated with the two cavities through a second conduit 16 and a first conduit 10, the inside of the second conduit 16 is rotatably connected with a valve 12, a worker opens the valve 12, gas is discharged from a gas container and enters the inside of the valve body, and is discharged along the nozzle 13, when the air pressure in the valve body is close to the rated safe air pressure, the ball 4 is pushed under the action of the air pressure to overcome the pressure of the first compression spring 3 to move, and is discharged rightwards along the drainage groove 5 to be decompressed, the ball 4 is driven by the pull rod 2 to close the drainage groove 5 under the pressure of the first compression spring 3 after the pressure is recovered, the piston 9 is tightly attached to the inside of the first conduit 10, the second compression spring 8 is fixedly connected to one side of the piston 9 away from the second conduit 16, the pressing plate 7 is fixedly connected to one side of the second compression spring 8 away from the piston 9, the stud 6 is connected to the internal thread of the first conduit 10, the stud 6 is rotatably connected with the pressing plate 7 through a bearing, the stud 6 can be rotated by a worker according to the actual condition of the gas container, the stud 6 can clamp the first conduit 10 and drive the pressing plate 7 to move around the bearing, the pressing plate 7 drives the piston 9 to move through the second, thereby remove the pressure of the distance control pressure release in the exit above first pipe 10 through control piston 9, one side that valve body 1 is close to first pipe 10 is opened has the export, if the gas that uses has harmful gas such as corrosivity still need carry out sealing connection with the export on collection container and valve body 1 right side, one side rigid coupling that valve body 1 kept away from the export has nozzle 13, nozzle 13's outer wall annular groove, annular groove's inside is opened has a plurality of through-holes 14, rubber sleeve 15 has been cup jointed to annular groove's inside, and rubber sleeve 15's both ends and annular groove's inner wall are fixed continuous, gaseous through-hole 14 messenger rubber sleeve 15 inflation under the effect of atmospheric pressure, increase pipe connection's leakproofness.

In this embodiment, when in use, the gland 1 is fixedly connected with a gas container, a conduit of a user device is connected with the nozzle 13, if the used gas is harmful gas with corrosivity and the like, the collection container is also required to be hermetically connected with an outlet on the right side of the valve body 1, then a worker opens the valve 12, the gas is discharged from the gas container, enters the valve body 1 along the second conduit 16 and is discharged along the nozzle 13, the gas expands the rubber sleeve 15 through the through hole 14 under the action of air pressure to increase the tightness of conduit connection, when the air pressure in the valve body is close to rated safe air pressure, the ball 4 is pushed under the action of the air pressure to overcome the pressure of the first compression spring 3 to move and is discharged rightwards along the drainage groove 5 to be decompressed, the pressure is recovered, the ball 4 is driven by the pull rod 2 under the pressure of the first compression spring 3 to close the drainage groove 5, meanwhile, a worker can rotate the stud 6 according to the actual condition of the gas container, the stud 6 can clamp the first conduit 10 and drive the pressing plate 7 to move by rotating around the bearing, and the pressing plate 7 drives the piston 9 to move through the second compression spring 8, so that the pressure of pressure relief is controlled by controlling the distance from the piston 9 to the outlet above the first conduit 10.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. A medical gas safety valve, includes valve body (1), its characterized in that: the improved valve is characterized in that the middle of the interior of the valve body (1) is divided into two cavities through a baffle, a plurality of drainage grooves are formed in the baffle, a clamping groove is formed in the baffle, the cavities on two sides are communicated with each other through the drainage grooves and the clamping groove, a ball body (4) is tightly attached to the interior of the clamping groove, a pull rod (2) is inserted into the middle of the interior of the baffle, the pull rod (2) is fixedly connected with the ball body (4), a first compression spring (3) is movably sleeved on the outer wall of the pull rod (2), two sides of the compression spring (3) are respectively attached to the pull rod (2) and the baffle, a gland (11) is arranged below the valve body (1), two sides of the upper portion of the gland (11) are respectively communicated with the two cavities through a second guide pipe (16) and a first guide pipe (10) which are connected with each other, a valve (12) is rotated in the interior of the second guide pipe (16), and a piston, piston (9) keep away from one side rigid coupling of second pipe (16) has second compression spring (8), one side rigid coupling that piston (9) were kept away from in second compression spring (8) has clamp plate (7), the internal thread of first pipe (10) links to each other has double-screw bolt (6), and double-screw bolt (6) rotate with clamp plate (7) through the bearing and link to each other, one side that valve body (1) is close to first pipe (10) is opened there is the export, one side rigid coupling that the export was kept away from in valve body (1) has nozzle (13), the outer wall annular groove of nozzle (13), open the inside of annular groove has a plurality of through-holes (14), rubber sleeve (15) have been cup jointed to the inside of annular groove, and the both ends of rubber sleeve (15) link to each other with the inner wall of annular groove is fixed.

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