CN216832320U - Connecting structure for cold shrinkage fixation between PE pipe and steel pipe of wallboard core pipe - Google Patents
Connecting structure for cold shrinkage fixation between PE pipe and steel pipe of wallboard core pipe Download PDFInfo
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- CN216832320U CN216832320U CN202220386315.4U CN202220386315U CN216832320U CN 216832320 U CN216832320 U CN 216832320U CN 202220386315 U CN202220386315 U CN 202220386315U CN 216832320 U CN216832320 U CN 216832320U
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Abstract
The utility model provides a fixed connection structure of shrinkage between PE pipe and steel pipe of wallboard core pipe, core pipe include PE pipe, inside lining pipe, processing steel pipe and draw the ring, and the interface portion of processing steel pipe inner is connected in inside lining pipe, and the drawing ring is fixed to the connecting portion of outer end, and middle circumference outer wall sets gradually smooth portion, recess, crest portion, PE pipe begins to wrap up inside lining pipe, processing steel pipe's smooth portion, recess, crest portion in proper order from the end of inside lining pipe, and ends in the connecting portion of processing steel pipe until its open end; the seamless steel pipe is sleeved on the section of the PE pipe close to the opening end of the PE pipe and wrapped by the processing steel pipe, cold shrinkage necking treatment is carried out on the seamless steel pipe, the PE pipe is extruded to each groove and crack on the circumferential outer wall of the processing steel pipe, the pipe body of the PE pipe is fixed together with the processing steel pipe, the condition that the PE pipe wrapped outside is reduced when the core pipe is pulled out from the wallboard, and therefore the production efficiency and the quality of the section in wallboard production are improved.
Description
Technical Field
The utility model relates to a building technical field, concretely relates to fixed connection structure of shrinkage between PE pipe of wallboard core pipe and steel pipe.
Background
The continuous development of society and the urgent need of people for the development and construction of urban and rural areas and the continuous improvement of social public services lead to that the wallboard used by the existing building is not in line with the environmental protection and lightweight requirement of the current era, and further, the material use and the manufacturing process of the building wallboard also put forward higher requirements, and the building wallboard can not be produced by the traditional production mode, and under the requirement, the rapid development of light wallboard production equipment is greatly promoted.
In the production process of the light wall board, a core pipe is generally inserted when the wall board is formed, and the core pipe is required to be drawn out after the forming is finished. The outer layer of the part of the core pipe, which is inserted into the wall body from one end to just leak out of the wall body, is wrapped with a layer of PE pipe, namely the core pipe is not completely wrapped by the PE pipe and only wraps the part close to the drawing ring at the other end of the core pipe. In the core pulling stage of the prior production of the light wall board, because the core pipe is arranged inside the solidified wall board, and the PE pipe outside the core pipe always falls off due to unreliable installation in the core pipe pulling process, a new connecting structure for fixing the PE pipe of the core pipe of the wall board and the steel pipe in a shrinkage mode is needed to be designed, and the PE pipe outside the core pipe cannot fall off in the core pulling stage.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model discloses a technical scheme as follows:
a connecting structure for cold contraction fixation between a PE pipe and a steel pipe of a wallboard core pipe comprises the PE pipe, an inner lining pipe, a processing steel pipe and a drawing ring, wherein the PE pipe is wrapped on the outermost layer, one end of the PE pipe is in a thermoplastic conical closed structure, the other end of the PE pipe is in an open structure, and the inner lining pipe penetrates through the PE pipe; the groove and the wave crest part are annularly arranged along the circumferential outer wall of the processing steel pipe, the circumferential outer diameter of the smooth part is the same as that of the lining pipe, and the highest point circumferential outer diameter of the wave crest part is the same as that of the smooth part; the PE pipe wraps the processed steel pipe from the tail end of the lining pipe, sequentially wraps the smooth part, the groove and the wave crest part of the processed steel pipe until the opening end of the PE pipe is terminated at the connecting part of the processed steel pipe, the inner diameter of the PE pipe is matched with the outer diameter of the lining pipe and the outer diameter of the smooth part of the processed steel pipe, and the processed steel pipe, the lining pipe and the PE pipe are coaxially arranged; and sleeving a section of the PE pipe close to the opening end of the PE pipe with a seamless steel pipe on a pipe body wrapped by the processing steel pipe, performing cold-shrinking necking treatment on the seamless steel pipe, and extruding the PE pipe to fix the pipe body of the PE pipe and the processing steel pipe together.
Preferably, 2-3 grooves are formed in the outer wall of the circumference of the steel pipe to be processed, 2-3 wave crest portions are formed in the outer wall of the circumference of the steel pipe to be processed, and the smooth portions, the grooves and the wave crest portions are sequentially and alternately arranged.
Preferably, the grooves are formed in the circumferential outer wall of the processed steel pipe by 2, and the wave crest portions are formed in the circumferential outer wall of the processed steel pipe by 2.
Preferably, the crest portions are zigzag with flat vertex angles along the tangent plane of the center line of the processed steel pipe, and incline towards the connecting portions at the outer ends, and each crest portion has two crests inclined towards the connecting portions at the outer ends.
Preferably, the circumferential outer diameter of the connecting part of the processed steel pipe is matched with the inner diameter of the lining pipe, and the connecting part is just inserted into the inner diameter of the lining pipe; the circumference external diameter of the highest point of the connecting part of the processing steel pipe is the same as the circumference external diameter of the smooth part wrapping the PE pipe.
Preferably, at least 1 seamless steel tube is arranged, and the sleeved part corresponds to the whole or partial structure of the smooth part, the groove and the wave crest part of the processed steel tube of the inner sleeve.
Preferably, the number of the seamless steel pipes is 2.
Preferably, the length of the seamless steel tube is matched with the length of all or part of the structure of the smooth part, the groove and the wave crest part of the sleeved corresponding processing steel tube.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the utility model discloses a fixed connection structure of shrinkage between PE pipe of wallboard core pipe and steel pipe, through setting the smooth portion to in proper order with processing steel pipe interlude, a groove, the crest portion, will extrude PE pipe after the shrink necking down is handled like this and extrude PE pipe to the smooth portion of processing steel pipe, in each recess and the crack between recess and the crest portion, make the body of PE pipe firmly fix together with the processing steel pipe, the core pipe has greatly been reduced and the condition that the in-process parcel externally PE pipe drops is taken out from the wallboard, and then the production efficiency of this link and the product quality of production in the wallboard production have been improved.
Drawings
In order to clearly illustrate the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it should be apparent that the drawings in the following description are some examples of the embodiments of the present invention.
FIG. 1 is a sectional view of the structure of the present invention, which includes a drawing ring of the core tube, a lining tube of the core tube, and a sectional view of the closed end;
fig. 2 is a sectional view of the steel pipe processing apparatus of the present invention.
In the figure, 1-machining a steel pipe; 2-PE pipe; 3-seamless steel pipe; 5-lining the tube; 6-drawing ring; 11-a connecting portion; 12-wave crest; 13-groove, 14-smooth portion; 15 an interface part.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for a better understanding of the present embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; for those skilled in the art, some well-known structures in the drawings and descriptions thereof may be omitted; the terms "upper", "lower", "one end", "the other end", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
It should also be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The following is further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, a connecting structure for fixing a wall panel core pipe by shrinking between a PE pipe and a steel pipe, the core pipe comprises a PE pipe 2, an inner lining pipe 5, a processed steel pipe 1 and a drawing ring 6, the PE pipe 2 is wrapped on the outermost layer, one end of the PE pipe is thermoplastically formed into a tapered closed structure, the other end of the PE pipe is formed into an open structure, the inner lining pipe 5 is arranged in the PE pipe 2 in a penetrating manner, the connecting part 15 at the inner end of the processed steel pipe 1 is connected to the inner lining pipe 5, the drawing ring 6 is fixed to a connecting part 11 at the outer end of the processed steel pipe, and a smooth part 14, a groove 13 and a wave crest part 12 protruding and inclining towards the outer end are arranged on the circumferential outer wall between the connecting part 15 and the connecting part 11; the grooves 13 and the crest portions 12 are annularly arranged along the circumferential outer wall of the processing steel pipe 1, the circumferential outer diameter of the smooth portion 14 is the same as that of the lining pipe 5, and the circumferential outer diameter of the highest point of the crest portion 12 is the same as that of the smooth portion 14; the PE pipe 2 wraps the processing steel pipe 1 from the tail end of the lining pipe 5, the smooth part 14, the groove 13 and the crest part 12 of the processing steel pipe 1 are sequentially wrapped until the opening end of the PE pipe is terminated at the connecting part 11 of the processing steel pipe 1, and the processing steel pipe 1, the lining pipe 5 and the PE pipe 2 are coaxially arranged; and a section of the PE pipe 2 close to the opening end of the PE pipe and a pipe body wrapped by the processing steel pipe 1 are sleeved with a seamless steel pipe 3, and the seamless steel pipe 3 is subjected to cold-shrinking necking treatment to extrude the PE pipe 2 so as to fix the pipe body of the PE pipe 2 and the processing steel pipe 1 together.
In order to wrap the PE pipe without a gap, the inner lining pipe 5 and the outer wall of the processed steel pipe 1 can be tightly attached to the inner wall of the PE pipe 2, and the inner diameter of the PE pipe 2 is matched with the outer diameter of the inner lining pipe 5 and the outer diameter of the smooth part 14 of the processed steel pipe 1. Under the effect of the cold-shrinking necking of the seamless steel pipe 3, the PE pipe 2 is extruded to each gap and groove on the circumferential outer wall of the processed steel pipe 1.
As shown in fig. 2, the number of the concave grooves 13 is 2 on the circumferential outer wall of the processed steel pipe 1, the number of the crest portions 12 is 2 on the circumferential outer wall of the processed steel pipe 1, and the smooth portions 14, the concave grooves 13, and the crest portions 13 are alternately arranged in this order. The crest portions 12 are zigzag with flat apex angles along the tangent plane of the central line of the processing steel pipe 1, and are inclined toward the connecting portions 11 at the outer ends, and each crest portion 12 has two crest inclined toward the connecting portions at the outer ends.
Further, the circumferential outer diameter of the connecting part 15 of the processed steel pipe 1 is matched with the inner diameter of the lining pipe 5, and the connecting part 15 is just inserted into the inner diameter of the lining pipe 5; the circumference outer diameter of the highest point of the connecting part 11 of the processed steel pipe 1 is the same as the circumference outer diameter of the smooth part 14 wrapping the PE pipe 2.
Furthermore, 2 seamless steel pipes 3 are provided, and the sleeved positions correspond to the whole or partial structures of the smooth part 14, the groove 13 and the crest part 12 of the processed steel pipe 1 of the inner sleeve. The length of the seamless steel tube 3 is matched with the length of all or part of the structure of the smooth part 14, the groove 13 and the crest part 12 of the corresponding processing steel tube 1 which is sleeved.
The connection method comprises the following steps: 2 install the seamless steel pipe 3 of processing steel pipe 1 and PE pipe 2 outside and do the shrink neck processing of shrinking under the effect of pipe equipment, each seamless steel pipe 3 tightly hoops the processing steel pipe 1 of PE pipe 2 and endotheca, and extrude PE pipe 2, extrude PE pipe 2 to processing in smooth portion 14 of steel pipe 1, each recess and the crack between recess 13 and crest portion 12, make PE pipe 2 be close to the open end and closely fix on processing steel pipe 1 with one section that processing steel pipe 1 wrapped up mutually, the condition that the PE pipe drops in the core tube drawing process has greatly been reduced.
The pipe reducing equipment adopts the pipe reducing equipment of the end of the hydraulic oil pipe.
The thickness of the wall of the processed steel pipe 1 is thick enough, so that the circumferential outer wall of the processed steel pipe can be provided with a plurality of grooves 13 and wave crest parts 12, and the force of the shrinkage necking treatment on the seamless steel pipe 3 by the pipe shrinkage equipment can be borne.
Example 2
The grooves 13 are arranged on the outer wall of the circumference of the processed steel pipe 1 in 3 strips, the crest portions 12 are arranged on the outer wall of the circumference of the processed steel pipe 1 in 3 strips, the seamless steel pipe 3 is arranged in 1 strip, and other modes are the same as those of the embodiment 1.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses the standard part that uses all can purchase from the market, perhaps customs according to the picture presentation, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt conventional model among the prior art, and conventional connection mode in the circuit connection adopted prior art is not detailed here again.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (8)
1. A connecting structure for cold contraction fixation between a PE pipe and a steel pipe of a wallboard core pipe comprises the PE pipe, an inner lining pipe, a processing steel pipe and a drawing ring, wherein the PE pipe is wrapped on the outermost layer, one end of the PE pipe is in a thermoplastic conical closed structure, the other end of the PE pipe is in an open structure, and the inner lining pipe penetrates through the PE pipe; the groove and the wave crest part are annularly arranged along the circumferential outer wall of the processing steel pipe, the circumferential outer diameter of the smooth part is the same as that of the lining pipe, and the highest point circumferential outer diameter of the wave crest part is the same as that of the smooth part; the PE pipe wraps the processing steel pipe from the tail end of the lining pipe, the smooth part, the groove and the wave crest part of the processing steel pipe are sequentially wrapped until the opening end of the PE pipe is terminated at the connecting part of the processing steel pipe, the inner diameter of the PE pipe is matched with the outer diameter of the lining pipe and the outer diameter of the smooth part of the processing steel pipe, and the processing steel pipe, the lining pipe and the PE pipe are coaxially arranged; and sleeving a section of the PE pipe close to the opening end of the PE pipe with a seamless steel pipe on a pipe body wrapped by the processing steel pipe, performing cold-shrinking necking treatment on the seamless steel pipe, and extruding the PE pipe to fix the pipe body of the PE pipe and the processing steel pipe together.
2. The wallboard core tube connecting structure for cold shrinking fixation between the PE pipe and the steel pipe as claimed in claim 1, wherein the grooves are disposed 2-3 on the outer circumferential wall of the machined steel pipe, the wave crest portions are disposed 2-3 on the outer circumferential wall of the machined steel pipe, and the smooth portions, the grooves and the wave crest portions are alternately disposed in sequence.
3. The wallboard core pipe connection structure for cold shrink fastening between a PE pipe and a steel pipe of claim 2, wherein the grooves are provided with 2 on the circumferential outer wall of the processed steel pipe, and the wave crest portions are provided with 2 on the circumferential outer wall of the processed steel pipe.
4. The structure of claim 3, wherein the crest portions are in the shape of a saw-tooth with an inclined apex angle along a tangent plane of the center line of the processed steel tube, and are inclined toward the connection portions at the outer ends, and each crest portion has two peaks inclined toward the connection portions at the outer ends.
5. The structure of claim 1, wherein the circumferential outer diameter of the connecting portion of the processed steel tube is adapted to the inner diameter of the inner liner tube, and the connecting portion is inserted into the inner diameter of the inner liner tube; the circumference external diameter of the highest point of the connecting part of the processing steel pipe is the same as the circumference external diameter of the smooth part wrapping the PE pipe.
6. The wallboard core tube connecting structure with cold shrink fixation between PE tube and steel tube of claim 1, wherein at least 1 seamless steel tube is provided, and the sleeved position corresponds to the whole or partial structure of the smooth part, the groove and the wave crest part of the processed steel tube of the inner sleeve.
7. The wallboard core tube connecting structure for cold shrink fixing between the PE tube and the steel tube according to claim 6, wherein 2 seamless steel tubes are provided.
8. The connecting structure for the cold shrinkage fixation between the PE pipe and the steel pipe of the wallboard core pipe according to claim 7, wherein the length of the seamless steel pipe is matched with the length of the whole or partial structure of the smooth part, the groove and the wave crest part of the corresponding processed steel pipe which is sleeved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220386315.4U CN216832320U (en) | 2022-02-25 | 2022-02-25 | Connecting structure for cold shrinkage fixation between PE pipe and steel pipe of wallboard core pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220386315.4U CN216832320U (en) | 2022-02-25 | 2022-02-25 | Connecting structure for cold shrinkage fixation between PE pipe and steel pipe of wallboard core pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216832320U true CN216832320U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220386315.4U Active CN216832320U (en) | 2022-02-25 | 2022-02-25 | Connecting structure for cold shrinkage fixation between PE pipe and steel pipe of wallboard core pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216832320U (en) |
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2022
- 2022-02-25 CN CN202220386315.4U patent/CN216832320U/en active Active
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Address after: 266400 No. 177, Qian Jia Shan Road, Huangdao District, Qingdao, Shandong. Patentee after: Qingdao Global Heavy Industry Technology Co.,Ltd. Address before: 266400 No. 177, Qian Jia Shan Road, Huangdao District, Qingdao, Shandong. Patentee before: QINGDAO HICORP GROUP Co.,Ltd. |