CN215084432U - Nitrogen gas inlet mechanism of fire extinguishing agent tank - Google Patents

Abstract

The utility model provides a nitrogen gas inlet mechanism of an extinguishing agent tank, which is arranged on a tank body of the extinguishing agent tank and comprises a joint and an air inlet pipe, wherein one end of the joint is arranged on the tank body, the air inlet pipe is arranged in an inner hole of the joint in an alternating way, the side wall of the air inlet pipe is provided with a connecting hole, the periphery of the air inlet pipe is sleeved with an elastic rubber pipe, the elastic rubber pipe covers the connecting hole, a split type joint and air inlet pipe structural design is adopted, when the tank body is inflated, the air pressure in the connecting hole pushes the elastic rubber pipe outwards to push the elastic rubber pipe away from the outer wall of the air inlet pipe, the connecting hole and the inner cavity of the tank body form an air inlet channel, nitrogen gas enters the tank body through the air inlet channel, the elastic rubber pipe is sealed on the outer wall of the air inlet pipe in a fitting manner under the effect of elastic deformation after the inflation, the connecting hole is closed, the nitrogen gas leakage is further avoided, the structure is simple and reliable, the manufacturing cost is low, and the maintenance and the replacement of the elastic rubber tube are convenient.

Description

Nitrogen gas inlet mechanism of fire extinguishing agent tank

Technical Field

The utility model relates to a nitrogen gas inlet mechanism of fire extinguishing agent jar.

Background

The fire extinguishing agent tank is a storage tank for holding fire extinguishing agent for fill fire extinguishing agent to conventional fire extinguisher, when filling fire extinguishing agent to the fire extinguisher, generally dashes into high-pressure nitrogen gas to the internal jar through air inlet mechanism, makes the internal pressure increase of jar drive fire extinguishing agent and fills the fire extinguisher in, and air inlet mechanism among the prior art generally is overall structure, and the structure is complicated, and high in manufacturing cost, and long-time work back, the easy gas leakage phenomenon that appears.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the mechanism of admitting air among the prior art generally is overall structure, and the structure is complicated, and high in manufacturing cost, and long-time work back, the phenomenon of leaking gas easily appears, the utility model provides a nitrogen gas mechanism of admitting air of fire extinguishing agent jar solves above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: a nitrogen gas inlet mechanism of a fire extinguishing agent tank is arranged on a tank body of the fire extinguishing agent tank and comprises a joint and a gas inlet pipe, wherein one end of the joint is fixedly arranged on the tank body and is communicated with an inner cavity of the tank body; the intake pipe is installed from outer toward interior interlude in the hole that connects, and extend to the jar is internal, be provided with the connecting hole on the lateral wall of intake pipe, the inner chamber of intake pipe passes through the connecting hole with the inner chamber of the jar body is linked together, the periphery cover of intake pipe is equipped with the elasticity rubber tube, the inner wall of elasticity rubber tube with the outer wall laminating of intake pipe sets up, and covers on the connecting hole.

Further: a pressing cap is mounted at one end of the joint far away from the tank body, an internal thread is arranged at one end of the pressing cap close to the joint, and a mounting hole penetrating through the air inlet pipe is formed in the other end of the pressing cap; the joint is provided with an external thread matched with the internal thread, a limiting hole which is protruded inwards along the radial direction is arranged in an inner hole of the joint, a limiting clamping table which is protruded outwards along the radial direction is arranged in the middle of the air inlet pipe, the inner diameter size of the limiting hole is larger than the outer diameter size of the air inlet pipe and smaller than the outer diameter size of the limiting clamping table, and the air inlet pipe is sequentially inserted and installed in the installation hole and the inner hole of the joint from outside to inside; in the intake pipe, the outside cover that is located spacing ka tai is equipped with the sleeve pipe, the sleeve pipe slides and sets up in the hole that connects, internal thread in the pressure cap is screwed can drive on the external screw thread sleeve pipe inwardly moved, and make spacing ka tai to spacing hole removes.

Further: and a sealing gasket is arranged between the limiting hole and the limiting clamping table.

Further: the number of connecting holes is a plurality of, and is a plurality of the connecting hole evenly sets up along circumference.

The beneficial effects of the utility model are that, the utility model discloses the nitrogen gas admission mechanism of fire extinguishing agent jar adopts split type joint and intake pipe structural design, when aerifing to the jar body through the intake pipe, the outside top of atmospheric pressure in the connecting hole pushes away the elastic rubber pipe, the outer wall of intake pipe is kept away from to the elastic rubber pipe, make the inner chamber of connecting hole and jar body form inlet channel, nitrogen gas gets into jar in the body through inlet channel, after the inflation, the elastic rubber pipe is laminated once more sealed on the outer wall of intake pipe under the elastic deformation effect, close the connecting hole, and then avoid nitrogen gas to leak, moreover, the steam generator is simple in structure reliable, low in manufacturing cost, and be convenient for the maintenance and the change of elastic rubber pipe.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural view of a nitrogen gas intake mechanism of the fire extinguishing agent tank of the present invention;

FIG. 2 is a schematic view of the structure of the joint;

FIG. 3 is a schematic view of the structure of an intake pipe;

fig. 4 is a schematic structural view of the press cap.

In the figure, the sealing device comprises a tank body 1, a tank body 2, a joint 3, an air inlet pipe 4, a connecting hole 5, an elastic rubber pipe 6, a pressing cap 7, an internal thread 8, a mounting hole 9, an external thread 10, a limiting hole 11, a limiting clamping table 12, a sleeve pipe 13 and a sealing gasket.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, 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.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

As shown in fig. 1, the utility model provides a nitrogen gas inlet mechanism of a fire extinguishing agent tank, which is arranged on a tank body 1 of the fire extinguishing agent tank and comprises a joint 2 and an air inlet pipe 3, wherein one end of the joint 2 is fixedly arranged on the tank body 1 and is communicated with the inner cavity of the tank body 1; intake pipe 3 from outer toward interior alternate install in connect 2 in the hole, and extend to jar body 1 is interior, be provided with connecting hole 4 on the lateral wall of intake pipe 3, the inner chamber of intake pipe 3 passes through connecting hole 4 with the inner chamber of jar body 1 is linked together, the periphery cover of intake pipe 3 is equipped with elasticity rubber tube 5, the inner wall of elasticity rubber tube 5 with the outer wall laminating of intake pipe 3 sets up, and covers on the connecting hole 4.

When the tank body 1 is inflated through the air inlet pipe 3, the air pressure in the connecting hole 4 pushes the elastic rubber pipe 5 outwards, the elastic rubber pipe 5 is far away from the outer wall of the air inlet pipe 3, so that an air inlet channel is formed by the connecting hole 4 and the inner cavity of the tank body 1, nitrogen enters the tank body 1 through the air inlet channel, after the inflation is finished, the elastic rubber pipe 5 is attached to and sealed on the outer wall of the air inlet pipe 3 again under the action of elastic deformation force, the connecting hole 4 is closed, and the nitrogen leakage is avoided.

As shown in fig. 2, 3 and 4, a pressing cap 6 is mounted at one end of the joint 2 far away from the tank body 1, an internal thread 7 is arranged at one end of the pressing cap 6 close to the joint 2, and a mounting hole 8 inserted into the air inlet pipe 3 is arranged at the other end of the pressing cap; the joint 2 is provided with an external thread 9 matched with the internal thread 7, a limiting hole 10 protruding inwards along the radial direction is formed in an inner hole of the joint 2, a limiting clamping table 11 protruding outwards along the radial direction is arranged in the middle of the air inlet pipe 3, the inner diameter of the limiting hole 10 is larger than the outer diameter of the air inlet pipe 3 and smaller than the outer diameter of the limiting clamping table 11, and the air inlet pipe 3 is sequentially inserted and installed in the installation hole 8 and the inner hole of the joint 2 from outside to inside; on the intake pipe 3, be located the outside cover of spacing ka tai 11 is equipped with sleeve pipe 12, sleeve pipe 12 slides and sets up in the hole that connects 2, internal thread 7 in the pressure cap 6 is screwed can drive on the external screw thread 9 sleeve pipe 12 inwardly moved, and make spacing ka tai 11 to spacing hole 10 removes. And a sealing gasket 13 is arranged between the limiting hole 10 and the limiting clamping table 11.

The pressure cap 6 is installed on the joint 2 through the external thread 9 and the internal thread 7 in a threaded connection mode, and the sleeve 12 is pushed by the rotation of the pressure cap 6, so that the limiting clamping table 11 moves towards the limiting hole 10 and is tightly pressed on the sealing gasket 13, the nitrogen can be prevented from leaking outwards through the sealing gasket 13, the sleeve 12 can play a role in driving the air inlet pipe 3 to slide stably, the air inlet pipe 3 is prevented from deflecting to cause poor sealing, and meanwhile, the sealing gasket 13 and the elastic rubber pipe 5 can be conveniently replaced through the structure of the pressure cap.

The number of the connecting holes 4 is multiple, and the connecting holes 4 are uniformly arranged along the circumferential direction. The arrangement of a plurality of connecting holes 4 is compared in the haplopore setting, and the work of aerifing that can be faster, and more do benefit to elastic rubber tube 5 and seal.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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, a schematic representation of the term does 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.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (4)

1. The utility model provides a nitrogen gas inlet mechanism of fire extinguishing agent jar installs on jar body (1) of fire extinguishing agent jar, its characterized in that: the device comprises a joint (2) and an air inlet pipe (3), wherein one end of the joint (2) is fixedly arranged on a tank body (1) and is communicated with an inner cavity of the tank body (1); intake pipe (3) from outer toward interior alternate install in connect in the hole of (2), and extend to in jar body (1), be provided with connecting hole (4) on the lateral wall of intake pipe (3), the inner chamber of intake pipe (3) passes through connecting hole (4) with the inner chamber of the jar body (1) is linked together, the periphery cover of intake pipe (3) is equipped with elasticity rubber tube (5), the inner wall of elasticity rubber tube (5) with the outer wall laminating of intake pipe (3) sets up, and covers on connecting hole (4).

2. The nitrogen gas admission mechanism for a fire suppressant tank of claim 1 wherein: a pressing cap (6) is mounted at one end of the joint (2) far away from the tank body (1), an internal thread (7) is arranged at one end of the pressing cap (6) close to the joint (2), and a mounting hole (8) penetrating through the air inlet pipe (3) is formed at the other end of the pressing cap; the joint (2) is provided with an external thread (9) matched with the internal thread (7), a limiting hole (10) protruding inwards along the radial direction is formed in an inner hole of the joint (2), a limiting clamping table (11) protruding outwards along the radial direction is arranged in the middle of the air inlet pipe (3), the inner diameter of the limiting hole (10) is larger than the outer diameter of the air inlet pipe (3) and smaller than the outer diameter of the limiting clamping table (11), and the air inlet pipe (3) is sequentially inserted and installed in the installation hole (8) and the inner hole of the joint (2) from outside to inside;

on intake pipe (3), be located the outside cover of spacing ka tai (11) is equipped with sleeve pipe (12), sleeve pipe (12) slide to be set up in the hole that connects (2), internal thread (7) in pressure cap (6) are screwed can drive on external screw thread (9) sleeve pipe (12) inward movement, and make spacing ka tai (11) to spacing hole (10) remove.

3. A nitrogen inlet mechanism for a fire suppressant tank as recited in claim 2, wherein: and a sealing gasket (13) is arranged between the limiting hole (10) and the limiting clamping table (11).

4. The nitrogen gas admission mechanism for a fire suppressant tank of claim 1 wherein: the number of the connecting holes (4) is multiple, and the connecting holes (4) are uniformly arranged along the circumferential direction.

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