CN204062091U - A kind of polyethylene ball valve and valve end pipe connecting structure thereof - Google Patents
A kind of polyethylene ball valve and valve end pipe connecting structure thereof Download PDFInfo
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- CN204062091U CN204062091U CN201420384965.0U CN201420384965U CN204062091U CN 204062091 U CN204062091 U CN 204062091U CN 201420384965 U CN201420384965 U CN 201420384965U CN 204062091 U CN204062091 U CN 204062091U
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Abstract
The utility model relates to valve technology field, relate to a kind of polyethylene ball valve and valve end pipe connecting structure thereof, polyethylene ball valve valve end pipe connecting structure, the valve end pipe comprising valve body and be welded and fixed with valve body, the end of valve body is provided with thermal fusion welding hole, the end of valve end pipe is provided with the hot melt junctor coordinating welding with thermal fusion welding hole, the rear and front end in thermal fusion welding hole is respectively equipped with the first bypass channel and the second bypass channel, the rear and front end of hot melt junctor is respectively equipped with the 3rd bypass channel and the 4th bypass channel, when the thermal fusion welding hole of valve body and the hot melt junctor welding of valve end pipe are closed, formation first spill cavity closed by first bypass channel and the 3rd bypass channel, second bypass channel becomes the second spill cavity with the 4th bypass channel enclosed shape.This polyethylene ball valve valve end pipe connecting structure hot melt pearl overflow when welding is hidden in spill cavity, avoids the appearance quality affecting product; The valve body of this polyethylene ball valve and the two axial lines contact ratio of valve end pipe good, bending resistance square intensity is high, is suitable for applying.
Description
Technical field
The utility model relates to valve technology field, more specifically, relates to a kind of polyethylene ball valve and valve end pipe connecting structure thereof.
Background technique
One of most widely used plastics since polyethylene (PE) is mankind's model utility petrochemicals.Along with people are to the continuous understanding of polythene material and research and development, people recognize that polythene ball valve is in many-sided superiority such as performance, weight and prices gradually, and bring into use polythene valve to replace metal valve.Polyethylene valve is corrosion-resistant, ageing resistance strong, and working life can reach 50 years, is widely used in gas industry.
Traditional polythene valve, its valve end pipe and valve body generally adopt ring plain heat-melting butt-joint, this linkage structure, not only the two axial lines contact ratio of valve end pipe and valve body is poor, bending resistance square intensity is low, and the random overflow of plastic cement hot melt pearl is at outer surface, has had a strong impact on the appearance quality of product.
As existing Chinese patent notification number be CN201836497U patent discloses a kind of polyethylene ball valve, it comprises shell, be arranged on spool in shell and spool driving mechanism, wherein, electric melting pipe fittings is welded with in valve port, one end that this electric melting pipe fittings contacts with spool is provided with seal ring and supporting sleeve, and the other end of this electric melting pipe fittings is welded and fixed with end pipe.This polyethylene ball valve improves quality of processing, for the follow-up inspection of hermetic seal that carries out before welding provides conveniently, but can not solve the problem of the plastic cement hot melt pearl overflow of above-mentioned generation.
Model utility content
The utility model is intended to solve the problems of the technologies described above at least to a certain extent.
Primary and foremost purpose of the present utility model is to provide a kind of polyethylene ball valve valve end pipe connecting structure, forms a spill cavity respectively, the overflow of hot melt pearl is hidden in spill cavity, avoids the appearance quality affecting product in the front and back of valve body and valve end pipe face of weld.
Further object of the present utility model is to provide a kind of polyethylene ball valve adopting above-mentioned polyethylene ball valve valve end pipe connecting structure, and its bending resistance square intensity is high, is suitable for applying.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of polyethylene ball valve valve end pipe connecting structure is provided, the valve end pipe comprising valve body and be welded and fixed with described valve body, the end of described valve body is provided with thermal fusion welding hole, the end of described valve end pipe is provided with the hot melt junctor coordinating welding with described thermal fusion welding hole, the rear and front end in described thermal fusion welding hole is respectively equipped with the first bypass channel and the second bypass channel, the rear and front end of described hot melt junctor is respectively equipped with the 3rd bypass channel and the 4th bypass channel, when the thermal fusion welding hole of valve body and the hot melt junctor welding of valve end pipe are closed, formation first spill cavity closed by described first bypass channel and the 3rd bypass channel, described second bypass channel becomes the second spill cavity with the 4th bypass channel enclosed shape.
In such scheme, described front-end and back-end are relative reference direction.The center of valve body is for placing spool, the upper end of spool arranges the valve rod be in transmission connection with it, then centered by spool and the common axis of valve rod, this center is a wherein axis of also valve body, this axis is the two ends of valve body to the bearing of trend on both sides, namely with this axis of valve body for benchmark, namely the direction the closer to this axis is defined as front end.
As improvement, described thermal fusion welding hole is conical bore, and described hot melt junctor is the cone coordinated with described conical bore.With the profile design of conical bore and cone, the flowing of hot melt pearl when being convenient to valve end pipe and valve body welding.
Preferably, described thermal fusion welding hole is from front end to the back-end direction, and the conical surface diameter of conical bore expands gradually; Described hot melt junctor is held to the back-end on direction in the past, and the conical surface diameter of cone expands gradually.
Alternatively, the cross section of described first spill cavity and/or the second spill cavity is rectangle.
Further, be provided with spool bore in the middle part of described valve body, adjacent described spool bore is provided with cylindrical hole, and described cylindrical hole is located at the front end of described first bypass channel.
Further, the end of described valve end pipe is provided with cylindrical body, and the front end of described 3rd bypass channel is located at by cylindrical body, and described cylindrical body and described cylindrical hole are connected.
The utility model also provides a kind of polyethylene ball valve, comprise valve body, the spool be arranged in described valve body, the valve rod be in transmission connection with described spool and the valve end pipe be welded and fixed with described valve body, the linkage structure of described valve end pipe and described valve body adopt as above-mentioned arbitrary as described in polyethylene ball valve valve end pipe connecting structure.
Compared with prior art, the beneficial effects of the utility model are:
The utility model polyethylene ball valve valve end pipe connecting structure, it arranges bypass channel in the front end and back end of the face of weld of valve body and valve end pipe respectively, when making it the involutory contact of welding, a spill cavity is formed respectively before and after the common face of weld of valve body and valve end pipe, then hot melt pearl and overflow are hidden in spill cavity, avoid the appearance quality affecting product.
The utility model adopts the polyethylene ball valve of this valve end pipe connecting structure, and the two axial lines contact ratio of its valve body and valve end pipe is good, and bending resistance square intensity is high, extends the working life of ball valve, is more suitable for applying.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment's dimerized vinyl ball valve end pipe connecting structure.
Fig. 2 is the structural representation of embodiment two valve body.
Fig. 3 is the structural representation of embodiment two valve end pipe.
Fig. 4 is the structure for amplifying schematic diagram of part A in Fig. 1.
Embodiment
Below in conjunction with embodiment, the utility model is further described.
The corresponding same or analogous parts of same or analogous label in the accompanying drawing of the utility model embodiment; In description of the present utility model, it will be appreciated that, if have term " on ", D score, "left", "right", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be for based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the term describing position relationship in accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent.
In addition, if have the term such as " first ", " second " only for describing object, be mainly used for distinguishing different devices, element or constituent element (concrete kind is identical with structure possibility also may be different), not for showing or imply relative importance and the quantity of indicated device, element or constituent element, and instruction or hint relative importance can not be interpreted as.
embodiment one
First embodiment of the utility model polyethylene ball valve valve end pipe connecting structure, it valve end pipe comprising valve body and be welded and fixed with valve body, the end of valve body is provided with thermal fusion welding hole, the end of valve end pipe is provided with the hot melt junctor coordinating welding with thermal fusion welding hole, the rear and front end in thermal fusion welding hole is respectively equipped with the first bypass channel and the second bypass channel, the rear and front end of hot melt junctor is respectively equipped with the 3rd bypass channel and the 4th bypass channel, when the thermal fusion welding hole of valve body and the hot melt junctor welding of valve end pipe are closed, formation first spill cavity closed by first bypass channel and the 3rd bypass channel, second bypass channel becomes the second spill cavity with the 4th bypass channel enclosed shape.
When valve body and the pipe welding of valve end, thermal fusion welding hole coordinates the mutual welding in the face of welding jointly to form a hot welding layer with hot melt junctor, hot melt pearl is under the effect of extruding force, and overflow is entered two spill cavities before and after hot welding layer and is hidden naturally, avoids the appearance quality affecting product.
embodiment two
Be the second embodiment of the utility model polyethylene ball valve valve end pipe connecting structure as shown in Figures 1 to 4.As shown in Figure 1, it valve end pipe 2 comprising valve body 1 and be welded and fixed with valve body 1, as Fig. 2, shown in Fig. 3, the end of valve body 1 is provided with thermal fusion welding hole 11, the end of valve end pipe 2 is provided with the hot melt junctor 21 coordinating welding with thermal fusion welding hole 11, the rear and front end in thermal fusion welding hole 11 is respectively equipped with the first bypass channel 12 and the second bypass channel 13, the rear and front end of hot melt junctor 21 is respectively equipped with the 3rd bypass channel 22 and the 4th bypass channel 23, when the thermal fusion welding hole 11 of valve body 1 is closed with hot melt junctor 21 welding of valve end pipe 2, as shown in Figure 4, formation first spill cavity 3 closed by first bypass channel 12 and the 3rd bypass channel 22, formation second spill cavity 4 closed by second bypass channel 13 and the 4th bypass channel 23.
Be understandable that, so-called front-end and back-end are relative reference direction.The center of valve body 1 is for placing spool, the upper end of spool arranges the valve rod be in transmission connection with it, then centered by spool and the common axis of valve rod, this center is a wherein axis of also valve body 1, this axis is the two ends of valve body 1 to the bearing of trend on both sides, namely with this axis of valve body 1 for benchmark, namely the direction the closer to this axis is defined as front end.
In order to make the welding of valve end pipe 2 easier, the thermal fusion welding hole 11 of the present embodiment is conical bore, and hot melt junctor 21 is the cone coordinated with conical bore; Thermal fusion welding hole 11 is from front end to the back-end direction, and the conical surface diameter of conical bore expands gradually; Hot melt junctor 21 is from front end to the back-end direction, and the conical surface diameter of cone expands gradually.With the profile design of conical bore and cone, be also convenient to the flowing of valve end pipe 2 and hot melt pearl during valve body 1 welding.
The cross section of the first spill cavity 3 and/or the second spill cavity 4 is rectangle, this rectangle can also have certain angle according to actual service condition and horizontal line, namely the first bypass channel 12, second bypass channel 13, the 3rd bypass channel 22 and the 4th bypass channel 23 are obliquely installed, but still need guarantee formation first spill cavity 3 and the second spill cavity 4.
As shown in Figure 2, be provided with spool bore 14 in the middle part of the valve body 1 of the present embodiment, adjacent valve core bore 14 is provided with cylindrical hole 15, and cylindrical hole 15 is located at the front end of the first bypass channel 12; Correspondingly, as shown in Figure 3, the end of valve end pipe 2 is provided with cylindrical body 24, and the front end of the 3rd bypass channel 22 is located at by cylindrical body 24, and cylindrical body 24 and cylindrical hole 15 are connected.Be understandable that, as shown in Figure 2, the inner cylindrical surface 16 of cylindrical hole 15 and front-end face 17 are and the radial fit face of valve end pipe 2 welding and axial locating surface; Correspondingly, as shown in Figure 3, the external cylindrical surface 25 of cylindrical body 24 and front-end face 26 are and the radial fit face of valve body 1 welding and axial locating surface.
The polyethylene ball valve valve end pipe connecting structure of the utility model embodiment, it arranges bypass channel at valve body 1 and the front end and back end of the face of weld of valve end pipe 2 respectively, when making it the involutory contact of welding, a spill cavity is formed respectively before and after valve body 1 and the common face of weld of valve end pipe 2, then hot melt pearl and overflow are hidden in spill cavity, avoid the appearance quality affecting product.
embodiment three
The embodiment of the utility model polyethylene ball valve, comprise valve body, the spool be arranged in valve body, the valve rod be in transmission connection with spool and the valve end pipe be welded and fixed with valve body, the linkage structure of valve end pipe and valve body adopts the polyethylene ball valve valve end pipe connecting structure of above-mentioned any embodiment.
The polyethylene ball valve of the utility model embodiment, the two axial lines contact ratio of its valve body and valve end pipe is good, and bending resistance square intensity is high, extends the working life of ball valve, is more suitable for applying.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection domain that all should be included in the utility model claim.
Claims (7)
1. a polyethylene ball valve valve end pipe connecting structure, the valve end pipe comprising valve body and be welded and fixed with described valve body, it is characterized in that, the end of described valve body is provided with thermal fusion welding hole, the end of described valve end pipe is provided with the hot melt junctor coordinating welding with described thermal fusion welding hole, the rear and front end in described thermal fusion welding hole is respectively equipped with the first bypass channel and the second bypass channel, the rear and front end of described hot melt junctor is respectively equipped with the 3rd bypass channel and the 4th bypass channel, when the thermal fusion welding hole of valve body and the hot melt junctor welding of valve end pipe are closed, formation first spill cavity closed by described first bypass channel and the 3rd bypass channel, described second bypass channel becomes the second spill cavity with the 4th bypass channel enclosed shape.
2. polyethylene ball valve valve end pipe connecting structure according to claim 1, it is characterized in that, described thermal fusion welding hole is conical bore, and described hot melt junctor is the cone coordinated with described conical bore.
3. polyethylene ball valve valve end pipe connecting structure according to claim 2, is characterized in that, described thermal fusion welding hole is from front end to the back-end direction, and the conical surface diameter of conical bore expands gradually; Described hot melt junctor is held to the back-end on direction in the past, and the conical surface diameter of cone expands gradually.
4. polyethylene ball valve valve end pipe connecting structure according to claim 1, is characterized in that, the cross section of described first spill cavity and/or the second spill cavity is rectangle.
5. polyethylene ball valve valve end pipe connecting structure according to claim 1, it is characterized in that, be provided with spool bore in the middle part of described valve body, adjacent described spool bore is provided with cylindrical hole, and described cylindrical hole is located at the front end of described first bypass channel.
6. polyethylene ball valve valve end pipe connecting structure according to claim 5, is characterized in that, the end of described valve end pipe is provided with cylindrical body, and the front end of described 3rd bypass channel is located at by cylindrical body, and described cylindrical body and described cylindrical hole are connected.
7. a polyethylene ball valve, comprise valve body, the spool be arranged in described valve body, the valve rod be in transmission connection with described spool and the valve end pipe be welded and fixed with described valve body, it is characterized in that, the linkage structure of described valve end pipe and described valve body adopts polyethylene ball valve valve end pipe connecting structure as described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384965.0U CN204062091U (en) | 2014-07-14 | 2014-07-14 | A kind of polyethylene ball valve and valve end pipe connecting structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384965.0U CN204062091U (en) | 2014-07-14 | 2014-07-14 | A kind of polyethylene ball valve and valve end pipe connecting structure thereof |
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| CN204062091U true CN204062091U (en) | 2014-12-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165240A (en) * | 2014-07-14 | 2014-11-26 | 广东联塑科技实业有限公司 | Polyethylene ball valve and valve end pipe connection structure thereof |
| CN112265280A (en) * | 2020-09-30 | 2021-01-26 | 上海摩软通讯技术有限公司 | Mobile terminal hot melt glue overflow prevention structure |
-
2014
- 2014-07-14 CN CN201420384965.0U patent/CN204062091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165240A (en) * | 2014-07-14 | 2014-11-26 | 广东联塑科技实业有限公司 | Polyethylene ball valve and valve end pipe connection structure thereof |
| CN112265280A (en) * | 2020-09-30 | 2021-01-26 | 上海摩软通讯技术有限公司 | Mobile terminal hot melt glue overflow prevention structure |
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