CN214713962U - Gas nozzle suitable for various complex working conditions - Google Patents
Gas nozzle suitable for various complex working conditions Download PDFInfo
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- CN214713962U CN214713962U CN202121202233.1U CN202121202233U CN214713962U CN 214713962 U CN214713962 U CN 214713962U CN 202121202233 U CN202121202233 U CN 202121202233U CN 214713962 U CN214713962 U CN 214713962U
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Abstract
The utility model relates to a fire-fighting equipment technical field provides a gas shower nozzle that can be applicable to various complicated operating modes, including cavity valve body, valve rod, spring, case and nozzle body, the case sets up in the cavity valve body, and the valve rod passes cavity valve body and case, and the nozzle body is connected to valve rod one end, sets up the spring between the other end and the case, and the spring provides the restoring force and makes nozzle body normal state down with cavity valve body sealing connection. The device has the advantages of reasonable structure and low cost, can meet the installation requirements of various container walls, and has good sealing effect; in addition, when the gas nozzle does not work, the horn-shaped opening of the hollow valve body is in an airtight state, so that material pollution is avoided, and the service life of the gas nozzle is effectively prolonged.
Description
Technical Field
The utility model relates to a fire-fighting equipment technical field, in particular to can be applicable to the gas shower nozzle of various complicated operating modes.
Background
Gas fire protection is a method for industrial fire protection, and a gas nozzle is an important part for gas fire protection; most of gas nozzles used in the market at present are open nozzles, however, in some scenes, the open nozzles are easily blocked, so that when gas is sprayed to extinguish fire, the fire extinguishing effect is affected. For example, under the condition that solid powder such as coal scuttles, feed bins is more, common gas shower nozzle blocks up extremely easily, and then produces bigger harm, does not have fine solution yet among the prior art. In addition, the gas nozzles are generally installed on the wall of the container, in actual operation, a reserved threaded hole is formed in one wall of the container, a long hole is formed in one wall of the container, the existing gas nozzles cannot adapt to the two installation modes at the same time, and the gas nozzles of specific structures are generally designed and produced according to each installation mode, so that the product types are numerous, and the replaceability is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can be applicable to the gas shower nozzle of various complicated operating modes to solve the problem of proposing in the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a gas nozzle applicable to various complex working conditions comprises a hollow valve body, a valve rod, a spring, a valve core and a nozzle body, wherein the outer contour of the hollow valve body is in a step shape with a high middle part and two low sides, the step surface at the leftmost side is used for connecting a gas pipeline, and the step surface at the middle part is provided with external threads;
the valve core is plugged at the left side of the hollow valve body, the center of the valve core is provided with a valve rod through hole, and the valve core is provided with a plurality of gas through holes;
the valve rod comprises a rod body and a rod head, the rod head is positioned on the left side of the rod body, the spring is sleeved on the rod body, one end of the spring is abutted against the left end face of the valve core, and the other end of the spring is abutted against the rod head; the rod body penetrates into the hollow valve body through the valve rod through a hole; the right end surface of the rod body is fixedly connected with a nozzle body;
the right end of the inner cavity of the hollow valve body is a trumpet-shaped opening with a large opening and a small inner part, and the minimum inner diameter of the trumpet-shaped opening is larger than the outer diameter of the valve rod body; the nozzle body is positioned on the right side of the horn-shaped opening, and the maximum outer diameter of the nozzle body is larger than the minimum inner diameter of the horn-shaped opening;
under normal state, the spring pushes against the valve rod head to make the valve rod body draw the nozzle body to be in sealing contact with the horn-shaped mouth of the hollow valve body.
Preferably, the leftmost stepped surface of the outer contour of the hollow valve body has a truncated cone shape with a smaller left side and a larger right side. The stepped surface is mainly used for being connected with the gas connecting pipe and is arranged into a truncated cone shape with a small left and a large right, so that the gas connecting pipe can be inserted conveniently, and the good sealing between the gas connecting pipe and the gas connecting pipe can be kept.
Preferably, two parallel tangent planes are arranged on the middle step plane, and the tangent plane is a non-through tangent plane of the middle step plane from left to right. Middle ladder face mainly be used for with container wall fixed connection, two truncation tangent planes that set up on middle ladder face can make middle ladder face not only can be applicable to the installing port of circular screw thread, also can be applicable to the interface of long circular hole form and have the effect of preventing changeing, and this structure makes the gas shower nozzle of this application can provide the mounting means of more variety, can be suitable for the container of different grade type.
Specifically, the side surface of the nozzle body is not completely attached to the inner surface of the horn-shaped opening of the hollow valve body, and the side surface of the nozzle body is recessed towards the axis direction of the nozzle body, so that after air injection, materials in the container occasionally fall into a gap between the nozzle body and the horn-shaped opening of the hollow valve body, if the side surface of the nozzle body is completely matched with the inner surface of the horn-shaped opening of the hollow valve body, a local clamping condition can occur under the condition of the tensile force of a spring, the nozzle body is not tightly sealed, the coaxiality between the nozzle body and the horn-shaped opening of the hollow valve body can be damaged due to local extrusion of the materials, and the side surface of the nozzle body is recessed towards the axis direction of the nozzle body, so that a gap can be formed between the nozzle body and the horn-shaped opening of the hollow valve body, and even if the materials fall, the clamping cannot occur between the nozzle body and the horn-shaped opening of the hollow valve body.
Specifically, an annular groove is formed in the position, close to the right stepped surface, of the middle stepped surface of the outer contour of the hollow valve body, and an O-shaped sealing ring is arranged in the annular groove. The structure can provide a double seal after the middle step surface is fixedly connected with the container wall and the O-shaped sealing ring.
The working principle of this application does: the middle step surface on the outline of the hollow valve body is fixedly connected with the container wall, the left step surface on the outline of the hollow valve body is connected with the gas connecting pipe, when fire fighting gas injection is needed, fire fighting gas is introduced into the gas connecting pipe, the nozzle body moves rightwards under the pressure action of the fire fighting gas, so that an opening is formed between the nozzle body and the horn-shaped opening of the hollow valve body, and the fire fighting gas is sprayed out from the opening; after the operation is finished, the fire-fighting gas is turned off, and the nozzle body is reset under the restoring action of the spring and is in sealing contact with the horn-shaped opening of the hollow valve body, so that the effect of isolating dust is achieved.
The device has the advantages of reasonable structure and low cost, can meet the installation requirements of various container walls, and has good sealing effect; in addition, when the gas nozzle does not work, the horn-shaped opening of the hollow valve body is in an airtight state, so that material pollution is avoided, and the service life of the gas nozzle is effectively prolonged.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following description of embodiments thereof, which is made for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
Example 1
Referring to fig. 1 and 2, the gas nozzle applicable to various complex working conditions comprises a hollow valve body 1, a valve rod 2, a spring 3, a valve core 4 and a nozzle body 5, wherein the outer contour of the hollow valve body is in a step shape with a high middle and two low sides, the leftmost step surface 101 is used for connecting a gas pipeline, and the middle step surface 102 is provided with an external thread;
the valve core is blocked at the left side of the hollow valve body, the center of the valve core is provided with a valve rod through hole 401, and the valve core is provided with a plurality of gas through holes 402;
the valve rod 2 comprises a rod body 201 and a rod head 202, the rod head is positioned on the left side of the rod body, the spring is sleeved on the rod body, one end of the spring is abutted against the left end face of the valve core, and the other end of the spring is abutted against the rod head; the rod body penetrates into the hollow valve body through the valve rod through a hole; the right end surface of the rod body is fixedly connected with a nozzle body;
the right end of the inner cavity of the hollow valve body is a trumpet-shaped opening with a large opening and a small inner part, and the minimum inner diameter of the trumpet-shaped opening is larger than the outer diameter of the valve rod body; the nozzle body is positioned on the right side of the horn-shaped opening, and the maximum outer diameter of the nozzle body is larger than the minimum inner diameter of the horn-shaped opening;
under normal conditions, the spring pushes against the valve rod head, so that the valve rod body pulls the nozzle body to be in sealing contact with the flared bell 104 of the hollow valve body.
In a further preferred embodiment of the present invention, the leftmost stepped surface of the outer contour of the hollow valve body has a truncated cone shape with a small left and a large right. The stepped surface is mainly used for being connected with the gas connecting pipe and is arranged into a truncated cone shape with a small left and a large right, so that the gas connecting pipe can be inserted conveniently, and the good sealing between the gas connecting pipe and the gas connecting pipe can be kept.
As a further preferable scheme of this embodiment, two parallel sections 1021 are arranged on the middle step surface 102, and the sections are non-through sections of the middle step surface from left to right. Middle ladder face mainly be used for with container wall fixed connection, two truncation tangent planes that set up on middle ladder face can make middle ladder face not only can be applicable to the installing port of circular screw thread, also can be applicable to the interface of long circular hole form and have the effect of preventing changeing, and this structure makes the gas shower nozzle of this application can provide the mounting means of more variety, can be suitable for the container of different grade type.
As a further preferable mode of this embodiment, the side surface of the nozzle body is not completely bonded to the inner surface of the flare of the hollow valve body, the side surface of the nozzle body is recessed in the axial direction thereof, the structure can prevent the materials in the container from accidentally falling into a gap between the nozzle body and the flare of the hollow valve body after the air injection, if the side surface of the nozzle body is completely matched with the inner surface of the flare of the hollow valve body, under the tension of the spring, a local clamping condition can occur, which can lead to the nozzle body not being tightly sealed, and the partial extrusion of the material can also break the coaxiality between the nozzle body and the horn-shaped opening of the hollow valve body, the side surface of the nozzle body is recessed toward the axial direction thereof, a gap is generated between the nozzle body and the flare of the hollow valve body, even if materials fall into the nozzle body, the materials cannot be blocked between the nozzle body and the horn-shaped opening of the hollow valve body.
As a further preferable scheme of this embodiment, an annular groove 1022 is provided at a position, close to the right stepped surface 103, of the intermediate stepped surface 102 of the outer contour of the hollow valve body, and an O-shaped sealing ring 6 is provided in the annular groove. The structure can provide a double seal after the middle step surface is fixedly connected with the container wall and the O-shaped sealing ring.
The present invention has been described above with reference to the accompanying drawings, as long as it is a variety of insubstantial improvements made by using the method concept and technical solutions of the present invention; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (5)
1. The utility model provides a can be applicable to the gas shower nozzle of various complicated operating modes, includes the cavity valve body, its characterized in that: the hollow valve body is in a ladder shape with a high middle and two low sides, wherein the left ladder surface is used for connecting a gas pipeline, and the middle ladder surface is provided with external threads;
the valve core is plugged at the left side of the hollow valve body, the center of the valve core is provided with a valve rod through hole, and the valve core is provided with a plurality of gas through holes;
the valve rod comprises a rod body and a rod head, the rod head is positioned on the left side of the rod body, the spring is sleeved on the rod body, one end of the spring is abutted against the left end face of the valve core, and the other end of the spring is abutted against the rod head; the rod body penetrates into the hollow valve body through the valve rod through a hole; the right end surface of the rod body is fixedly connected with a nozzle body;
the right end of the inner cavity of the hollow valve body is a trumpet-shaped opening with a large opening and a small inner part, and the minimum inner diameter of the trumpet-shaped opening is larger than the outer diameter of the valve rod body; the nozzle body is positioned on the right side of the horn-shaped opening, and the maximum outer diameter of the nozzle body is larger than the minimum inner diameter of the horn-shaped opening;
under normal state, the spring pushes against the valve rod head to make the valve rod body draw the nozzle body to be in sealing contact with the horn-shaped mouth of the hollow valve body.
2. The gas shower nozzle that can be adapted to various complicated operating conditions of claim 1, characterized in that: the left side step surface of the outline of the hollow valve body is in a truncated cone shape with a small left and a big right.
3. The gas shower nozzle that can be adapted to various complicated operating conditions of claim 2, characterized in that: two parallel tangent planes are arranged on the middle step plane of the outer contour of the hollow valve body, and the tangent plane is a non-through tangent plane of the middle step plane from left to right.
4. A gas shower nozzle suitable for various complicated working conditions according to claim 3, wherein: the side surface of the nozzle body is not completely attached to the inner surface of the horn-shaped opening of the hollow valve body, and the side surface of the nozzle body is recessed toward the axis direction thereof.
5. The gas shower nozzle that can be adapted to various complicated operating conditions of claim 4, characterized in that: an annular groove is arranged on the middle step surface of the outline of the hollow valve body close to the right step surface, and an O-shaped sealing ring is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121202233.1U CN214713962U (en) | 2021-05-31 | 2021-05-31 | Gas nozzle suitable for various complex working conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121202233.1U CN214713962U (en) | 2021-05-31 | 2021-05-31 | Gas nozzle suitable for various complex working conditions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214713962U true CN214713962U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121202233.1U Active CN214713962U (en) | 2021-05-31 | 2021-05-31 | Gas nozzle suitable for various complex working conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214713962U (en) |
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2021
- 2021-05-31 CN CN202121202233.1U patent/CN214713962U/en active Active
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