CN211574503U - Flame-retardant rod of first air guide inlet and outlet pipeline of explosion-proof electromagnetic valve - Google Patents
Flame-retardant rod of first air guide inlet and outlet pipeline of explosion-proof electromagnetic valve Download PDFInfo
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- CN211574503U CN211574503U CN202020127029.7U CN202020127029U CN211574503U CN 211574503 U CN211574503 U CN 211574503U CN 202020127029 U CN202020127029 U CN 202020127029U CN 211574503 U CN211574503 U CN 211574503U
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Abstract
The utility model relates to a flame-retardant rod of an explosion-proof electromagnetic valve air guide inlet and outlet pipeline, which comprises a matching end, wherein the matching end is arranged in the pipeline, the outer wall of the matching end and the inner wall of the pipeline are in interference fit to form a sealing state, the axial end face of the matching end is provided with a first air guide hole, and the gas in the pipeline flows from the first air guide hole; the rotary upright post is connected with the axial end face of the other side of the matched end, a second air guide hole is arranged in the radial direction of the rotary upright post, and the first air guide hole extends into the rotary upright post, so that the first air guide hole is communicated with the second air guide hole; the radial dimension of the rotary upright post is smaller than that of the matching end head, so that a buffer channel is formed between the rotary upright post and the inner wall of the pipeline. The utility model discloses utilize the special construction of flame retardant bar, arrange guide's gas business turn over pipeline in, make guide's gas must pass through the flame retardant bar, make guide's gas through one section buffer passage, can consume the gaseous energy of explosion, prevent the spark of explosion gas production to outwards transmit.
Description
Technical Field
The utility model relates to a flame retardant rod of an explosion-proof electromagnetic valve air-guide inlet and outlet pipeline.
Background
At present, most of explosion-proof electromagnetic valves in the market are high-power models, the power consumption is high, many devices do not need to use the high-power explosion-proof electromagnetic valves, low-power explosion-proof electromagnetic valves need to be correspondingly selected, and the coils in the low-power explosion-proof electromagnetic valves are easy to damage due to heat generation, so that the service life is short, and the explosion-proof electromagnetic valves are unreliable. Therefore, the inventor improves the prior art, replaces a low-power-consumption coil in the large-flow valve body with a two-position and two-position three-way miniature low-power-consumption electromagnetic valve, places the miniature low-power-consumption electromagnetic valve in an explosion-proof junction box as a pilot valve of the whole large-flow valve body, and drives a piston rod of the large-flow valve body to act through a control gas path of the miniature low-power-consumption electromagnetic valve; although the mode solves the reliability problem of the low-power electromagnetic valve, a coil which is easy to damage in the low-power electromagnetic valve is directly cancelled, a new problem is brought to flame-retardant explosion prevention, namely how to realize explosion prevention and flame retardance of an air inlet and outlet circuit of the miniature low-power electromagnetic valve, and because the standard in the industry requires that an explosion-proof product in the field needs to control the gap of a connecting position within a standard size and the current standard requirement is 0.02 mm, a certain explosion-proof and flame-retardant effect can be achieved, the inventor combines the technical problems and invents the flame-retardant rod in the scheme.
SUMMERY OF THE UTILITY MODEL
The utility model provides an explosion-proof solenoid valve leads flame retardant rod of air business turn over pipeline earlier, its structural design is reasonable, utilize flame retardant rod's special construction, arrange in guide's gas business turn over pipeline, make guide's gas must pass through flame retardant rod, and flame retardant rod's structure is formed with the gas circuit bend, make guide's gas pass through the gas circuit bend, and flame retardant rod makes guide's gas pass through one section buffer channel, buffer channel's clearance size control is at the standard size of industry requirement, can consume the gaseous energy of explosion, the spark that prevents the gaseous production of explosion is along the business turn over pipeline of guide's gas outwards transmission, explosion-proof requirement has been satisfied, the problem that exists in the prior art has been solved.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides an explosion-proof solenoid valve leads fire-retardant stick of air business turn over pipeline, includes:
the matching end is arranged in the pipeline, the outer wall of the matching end is in interference fit with the inner wall of the pipeline to form a sealing state, a first air guide hole is formed in the axial end face of the matching end, and gas in the pipeline flows from the first air guide hole;
the rotary upright column is connected with the axial end face of the other side of the matched end, a second air guide hole is arranged in the radial direction of the rotary upright column, and the first air guide hole extends into the rotary upright column so as to communicate the first air guide hole with the second air guide hole; the radial dimension of the convolute upright post is smaller than that of the matching end head, so that a buffer channel is formed between the convolute upright post and the inner wall of the pipeline;
the other end of the rotary upright post is matched with the inner wall of the pipeline through a sealing ring, a third air guide hole communicated with the buffer channel is radially arranged on the rotary upright post close to one side of the sealing ring, and a fourth air guide hole communicated with the third air guide hole is arranged on the axial end face of the rotary upright post.
Further, the radial dimension of the buffer channel between the outer wall of the rotary upright post and the inner wall of the pipeline is not more than 0.02 mm.
Further, the axial length of the buffer channel along the rotary upright post is not less than 9 mm.
Further, the radial dimension of the matching end is larger than the inner diameter dimension of the pipeline, so that the matching end is in interference fit with the pipeline.
Furthermore, the outer diameter of the sealing ring is larger than the radial dimension of the matching end, so that the rotary upright post presses the sealing ring in the pipeline.
Further, the first air guide hole, the second air guide hole, the third air guide hole and the fourth air guide hole have the same radial size.
Furthermore, the axial end parts of the matching end head and the rotary upright post are provided with chamfer structures.
The utility model adopts the above structure beneficial effect be, its structural design is reasonable, utilize the special construction of flame retardant rod, arrange in guide's gas business turn over pipeline, make guide's gas must pass through flame retardant rod, and flame retardant rod's structure is formed with the gas circuit bend, make guide's gas pass through the gas circuit bend, and flame retardant rod makes guide's gas pass through one section buffer passage, buffer passage's clearance dimensional control is at the standard size of trade requirement, can consume the gaseous energy of explosion, the spark that prevents explosion gas to produce is outwards transmitted along guide's gas business turn over pipeline, explosion-proof requirement has been satisfied.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the flame retardant rod of the present invention.
In the figure, 1, a mating terminal; 2. a rotary upright post; 3. a pipeline; 4. a first air guide hole; 5. a second air guide hole; 6. a buffer channel; 7. a seal ring; 8. a third air guide hole; 9. and a fourth air guide hole.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "center", "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 those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to 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.
As shown in fig. 1-2, the flame-retardant rod for the first gas guide inlet and outlet pipeline of the explosion-proof electromagnetic valve comprises a matching end 1 and a rotary upright post 2, wherein the matching end 1 is arranged in a pipeline 3, the outer wall of the matching end 1 and the inner wall of the pipeline 3 are in interference fit to form a sealing state, a first gas guide hole 4 is arranged on the axial end face of the matching end 1, and gas in the pipeline 3 flows from the first gas guide hole 4; the rotary upright post 2 is connected with the axial end face of the other side of the matching end 1, a second air guide hole 5 is arranged in the radial direction of the rotary upright post 2, and the first air guide hole 4 extends into the rotary upright post 2, so that the first air guide hole 4 is communicated with the second air guide hole 5; the radial dimension of the rotary upright post 2 is smaller than that of the matching end 1, so that a buffer channel 6 is formed between the rotary upright post 2 and the inner wall of the pipeline 3; the other end of the rotary upright post 2 is matched with the inner wall of the pipeline 3 through a sealing ring 7, a third air guide hole 8 communicated with the buffer channel 6 is radially arranged on the rotary upright post 2 close to one side of the sealing ring 7, and a fourth air guide hole 9 communicated with the third air guide hole 8 is arranged on the axial end face of the rotary upright post 2. When the explosion-proof pilot gas device is used, the special structure of the flame-retardant rod is utilized and is arranged in the pilot gas inlet and outlet pipeline, so that the pilot gas must pass through a first gas guide hole, a second gas guide hole, a buffer channel, a third gas guide hole and a fourth gas guide hole which are formed in the pipeline by the flame-retardant rod, the pilot gas passes through one section of buffer channel 6, the gap size of the buffer channel 6 is controlled to be in the standard size required by the industry, when the explosion-proof gas is generated, the heat of the explosion-proof gas can be attenuated to a safe value after the explosion-proof gas passes through the buffer channel, the spark generated by the explosion-proof gas is prevented from being transmitted outwards along the inlet and outlet pipeline of the pilot gas, and the explosion-.
It should be noted that, in order to meet the requirements of explosion-proof standards in the industry and achieve the corresponding explosion-proof effect, the radial size of the buffer channel 6 between the outer wall of the rotary upright post 2 and the inner wall of the pipeline 3 is not more than 0.02 mm.
Further, the buffer passage 6 has an axial length along the swiveling column 2 of not less than 9 mm. It is ensured that the buffer passage 6 has a sufficient axial length to consume the heat of the explosive gas, ensuring explosion-proof performance.
It will be appreciated that the radial dimension of the mating end 1 is greater than the internal diameter dimension of the conduit 3, so that the mating end 1 and conduit 3 are an interference fit.
It is worth mentioning that the outer diameter of the sealing ring 7 is larger than the radial dimension of the matching end 1, so that the convoluted upright post 2 compresses the sealing ring 7 in the pipeline 3.
In an alternative embodiment, the first gas holes 4, the second gas holes 5, the third gas holes 8 and the fourth gas holes 9 have the same radial dimension in order to ensure that the gas flow rate is kept constant before and after passing through the flame retardant rod.
For the convenient cooperation end 1 of flame retardant rod inserts pipeline 3, for the convenient stand 2 tip of circling round of flame retardant rod compresses tightly sealing washer 7, the axial tip of cooperation end 1 and the stand 2 that circles round all is equipped with the chamfer structure.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (7)
1. The utility model provides an explosion-proof solenoid valve leads fire-retardant stick of air business turn over pipeline earlier which characterized in that includes:
the matching end is arranged in the pipeline, the outer wall of the matching end is in interference fit with the inner wall of the pipeline to form a sealing state, a first air guide hole is formed in the axial end face of the matching end, and gas in the pipeline flows from the first air guide hole;
the rotary upright column is connected with the axial end face of the other side of the matched end, a second air guide hole is arranged in the radial direction of the rotary upright column, and the first air guide hole extends into the rotary upright column so as to communicate the first air guide hole with the second air guide hole; the radial dimension of the convolute upright post is smaller than that of the matching end head, so that a buffer channel is formed between the convolute upright post and the inner wall of the pipeline;
the other end of the rotary upright post is matched with the inner wall of the pipeline through a sealing ring, a third air guide hole communicated with the buffer channel is radially arranged on the rotary upright post close to one side of the sealing ring, and a fourth air guide hole communicated with the third air guide hole is arranged on the axial end face of the rotary upright post.
2. The flame retardant rod for the pilot gas inlet and outlet pipeline of the explosion-proof electromagnetic valve according to claim 1, wherein the radial dimension of the buffer channel between the outer wall of the convoluted upright post and the inner wall of the pipeline is not more than 0.02 mm.
3. The flame retardant rod for the pilot gas inlet and outlet pipeline of the explosion-proof electromagnetic valve according to claim 2, wherein the axial length of the buffer channel along the convoluted upright post is not less than 9 mm.
4. The flame retardant rod for the pilot gas inlet and outlet pipeline of the explosion-proof electromagnetic valve according to claim 3, wherein the radial dimension of the fitting end is larger than the inner diameter dimension of the pipeline, so that the fitting end and the pipeline are in interference fit.
5. The flame retardant rod for an explosion-proof solenoid valve pilot gas inlet and outlet pipeline according to claim 4, wherein the outer diameter dimension of the seal ring is greater than the radial dimension of the mating end, so that the convoluted post compresses the seal ring within the pipeline.
6. The flame retardant rod for the pilot gas inlet and outlet pipeline of the explosion-proof electromagnetic valve as recited in claim 5, wherein the first gas guide hole, the second gas guide hole, the third gas guide hole and the fourth gas guide hole have the same radial dimension.
7. The flame retardant rod for the pilot gas inlet and outlet pipeline of the explosion-proof electromagnetic valve according to claim 6, wherein the axial end parts of the matching end head and the convoluted upright post are provided with chamfer structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020127029.7U CN211574503U (en) | 2020-01-19 | 2020-01-19 | Flame-retardant rod of first air guide inlet and outlet pipeline of explosion-proof electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020127029.7U CN211574503U (en) | 2020-01-19 | 2020-01-19 | Flame-retardant rod of first air guide inlet and outlet pipeline of explosion-proof electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574503U true CN211574503U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020127029.7U Active CN211574503U (en) | 2020-01-19 | 2020-01-19 | Flame-retardant rod of first air guide inlet and outlet pipeline of explosion-proof electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574503U (en) |
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2020
- 2020-01-19 CN CN202020127029.7U patent/CN211574503U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: No.19, phase II, Zhongde Industrial Park, Zidong Avenue, Tianqiao District, Jinan City, Shandong Province Patentee after: Univo fluid control equipment (Shandong) Co., Ltd Address before: 250000 Dongyang Jiazhuang, Huashan Town, Licheng District, Jinan City, Shandong Province (south of Xiaoqing River) Patentee before: JINAN TIESEN AUTOMATIC CONTROL EQUIPMENT Co.,Ltd. |
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| CP03 | "change of name, title or address" |