CN202381867U - Gas drainage connecting hose - Google Patents
Gas drainage connecting hose Download PDFInfo
- Publication number
- CN202381867U CN202381867U CN2011204523560U CN201120452356U CN202381867U CN 202381867 U CN202381867 U CN 202381867U CN 2011204523560 U CN2011204523560 U CN 2011204523560U CN 201120452356 U CN201120452356 U CN 201120452356U CN 202381867 U CN202381867 U CN 202381867U
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- CN
- China
- Prior art keywords
- flexible pipe
- soft pvc
- gas extraction
- hose body
- flame retarding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses an underground gas drainage connecting hose for a coal mine, which comprises a hose body and a framework. The hose body is made of flexible polyvinyl chloride materials, and the framework is embedded into the hose body and consists of steel wires. The hose body is made of the flexible polyvinyl chloride materials, the requirement on bend property is met, manufacturing cost is low, the framework consisting of the steel wires is embedded into the hose body to strengthen the ring stiffness of the hose body, and accordingly the hose body cannot be flatly sucked and deform easily. In addition, the flexible polyvinyl chloride materials are flame-retardant and antistatic, and the requirements on flame retardance and antistatic property of the gas drainage connecting hose are met.
Description
Technical field
The utility model relates to a kind of tubing, particularly relates to a kind of coal mine gas extraction with connecting flexible pipe.
Background technique
Present domestic colliery is ripe relatively with straight hard tube, and its inside is flame-retardant layer, extrudes one deck flame-retardant and anti-static layer through the three-layer co-extruded inner and outer surface that makes.But the colliery is then less with connecting flexible pipe, because that soft material is difficult to realize simultaneously is fire-retardant and antistatic, and soft material is prone to inhale problem such as flat distortion and is difficult to develop.Existing connection flexible pipe generally adopts rubber material to process, and need could realize fire-retardant and anti-static electricity property at glue-line materials such as its outer wrap natural gum, neoprene and NBRs, and cost is higher, and the body ring stiffness is low, inhales flat distortion easily.
The model utility content
The technical problem that (one) will solve
The technical problem that the utility model will solve is how to solve existing gas extraction to use connection flexible pipe cost higher, and the body ring stiffness is low, inhales the defective of flat distortion easily.
(2) technological scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of gas extraction with connecting flexible pipe, comprise body of being processed by soft PVC materials and the skeleton that embeds in the said body, and said skeleton is made up of steel wire.
Wherein, said skeleton is made up of the helical steel wire.
Wherein, said body is processed by the soft PVC materials with flame retarding and antistatic behaviour.
Wherein, said body is processed by the soft PVC materials with flame retarding.
Wherein, the inside and outside surface of said body is provided with the soft PVC layer with flame retarding and antistatic behaviour.
Wherein, said soft PVC layer with flame retarding and antistatic behaviour adopts the co-extrusion mode to combine with said body.
Wherein, said soft PVC layer with flame retarding and antistatic behaviour adopts coating method to combine with said body.
(3) beneficial effect
A kind of gas extraction that technique scheme provided is with connecting flexible pipe, and the body that adopts soft PVC materials to process satisfies the requirement of sheathed; And the cost cost is lower; Adopt the steel-wire carcass that embeds in the body, strengthened the ring stiffness of body, make body be difficult for inhaling flat distortion; In addition, adopt soft PVC materials, to reach gas extraction with connecting the fire-retardant and anlistatig requirement of flexible pipe with flame retarding and antistatic behaviour.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1 gas extraction with the connection flexible pipe;
Fig. 2 is the structural representation of the utility model embodiment 2 gas extraction with the connection flexible pipe.
Wherein, 1, body; 2, skeleton; 3, inside and outside surface.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Fig. 1 has shown present embodiment gas extraction with the structure that connects flexible pipe, comprises body of being processed by soft PVC materials 1 and the skeleton 2 that embeds in the said body 1, and skeleton 2 is made up of the helical steel wire.Body 1 is processed by the soft PVC materials with flame retarding and antistatic behaviour.The body 1 that present embodiment adopts soft PVC materials with flame retarding and antistatic behaviour to process; Satisfy the requirement of flame retarding, antistatic behaviour and sheathed, the cost cost is lower, adopts the steel-wire carcass 2 that embeds in the body 1; Strengthened the ring stiffness of body 1, made body 1 be difficult for inhaling flat distortion.
Fig. 2 has shown present embodiment gas extraction with the structure that connects flexible pipe, and this connects the structure and the structural similarity that is connected flexible pipe shown in the embodiment 1 of flexible pipe, and its difference is that body 1 is processed by the soft PVC materials with flame retarding.Inside and outside surperficial 3 of body 1 is provided with the soft PVC layer with flame retarding and antistatic behaviour.Soft PVC layer with flame retarding and antistatic behaviour adopts co-extrusion or coating method to combine with body 1.Present embodiment adopts body 1 that soft PVC materials with flame retarding processes and adopts inside and outside surperficial 3 of soft PVC layer with flame retarding and antistatic behaviour; Further reduce gas extraction with connecting flexible pipe cost cost; Adopt the steel-wire carcass 2 that embeds in the body 1; Strengthened the ring stiffness of body 1, made body 1 be difficult for inhaling flat distortion.
In actual production; The flame retarding of soft PVC materials realizes in the following manner: well-known; PVC itself is a nonflammable material; Can improve its combustibility for improving its moulding plasticizing agent such as DOP that add, but only need add a small amount of fire retardant such as antimony trioxide, aluminium hydroxide, deca-BDE etc. can reach that it is fire-retardant.Further, in having the soft PVC materials of flame retarding, add anti-static agent and superconduction carbon black, can realize drawing out methane under the coal mine with the antistatic requirement of tubing through anti-static agent and superconduction carbon black coordinative role.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of the utility model.
Claims (7)
1. a gas extraction is characterized in that with connecting flexible pipe, comprises body of being processed by soft PVC materials and the skeleton that embeds in the said body, and said skeleton is made up of steel wire.
2. gas extraction as claimed in claim 1 is characterized in that with connecting flexible pipe said skeleton is made up of the helical steel wire.
3. gas extraction as claimed in claim 1 is characterized in that with connecting flexible pipe said body is processed by the soft PVC materials with flame retarding and antistatic behaviour.
4. gas extraction as claimed in claim 1 is characterized in that with connecting flexible pipe said body is processed by the soft PVC materials with flame retarding.
5. gas extraction as claimed in claim 4 is characterized in that with connecting flexible pipe the inside and outside surface of said body is provided with the soft PVC layer with flame retarding and antistatic behaviour.
6. gas extraction as claimed in claim 5 is characterized in that with connecting flexible pipe said soft PVC layer with flame retarding and antistatic behaviour adopts the co-extrusion mode to combine with said body.
7. gas extraction as claimed in claim 5 is characterized in that with connecting flexible pipe said soft PVC layer with flame retarding and antistatic behaviour adopts coating method to combine with said body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204523560U CN202381867U (en) | 2011-11-15 | 2011-11-15 | Gas drainage connecting hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204523560U CN202381867U (en) | 2011-11-15 | 2011-11-15 | Gas drainage connecting hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381867U true CN202381867U (en) | 2012-08-15 |
Family
ID=46630370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204523560U Expired - Lifetime CN202381867U (en) | 2011-11-15 | 2011-11-15 | Gas drainage connecting hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966375A (en) * | 2012-12-13 | 2013-03-13 | 李祥莹 | Coal mine underground safety channel |
-
2011
- 2011-11-15 CN CN2011204523560U patent/CN202381867U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966375A (en) * | 2012-12-13 | 2013-03-13 | 李祥莹 | Coal mine underground safety channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Jiahua hi tech Development Zone, Shanxi province Taiyuan city 030006 Street No. 7, block C (International High Shuai science building 11 floor) Patentee after: Shanxi Qingke Hengan Mining New Material Co., Ltd. Address before: 030006, new development building, No. 288, Changzhi Road, Taiyuan hi tech Zone, Shanxi, 4 Patentee before: Shanxi Qingke Hengan Mining New Material Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |