CN214941666U - No. 45 steel half grout sleeve structure - Google Patents
No. 45 steel half grout sleeve structure Download PDFInfo
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- CN214941666U CN214941666U CN202021023284.3U CN202021023284U CN214941666U CN 214941666 U CN214941666 U CN 214941666U CN 202021023284 U CN202021023284 U CN 202021023284U CN 214941666 U CN214941666 U CN 214941666U
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Abstract
The utility model discloses a 45 half grout sleeve structure of steel, including sleeve, prefabricated end reinforcing bar, assembly end reinforcing bar, grout outlet and grout outlet, telescopic front end is prefabricated end, excessive fixed connection assembly end is passed through to the one end of prefabricated end, threaded hole is opened to the one end of prefabricated end, the external screw thread of screw hole threaded connection prefabricated end reinforcing bar one end, the assembly end reinforcing bar is installed to the one end of assembly end, open the surface of assembly end has spiral roll extrusion recess, and the internal surface is provided with spiral roll extrusion arch, grout outlet is installed to surface one side of assembly end, and grout outlet is installed to one side in addition. According to the cast semi-grouting sleeve structure and the method thereof, the yield is high in the production process, the appearance of the spun semi-grouting sleeve is concise and free of defects, the wall thickness of the mechanical connecting end after necking is increased, the tensile resistance of the mechanical connecting end is improved under the control of temperature, the semi-grouting sleeve is adopted to simulate the use working condition to be made into a connecting test piece, and the sleeve is not easy to damage.
Description
Technical Field
The utility model relates to a socks production field, more specifically say, relate to a half grout sleeve structure of No. 45 steel.
Background
The construction industry is a traditional industry, and because the traditional steel bar connection mode such as lap joint, welding and other connection modes mainly adopts a cast-in-place construction process in our country at present, the requirement of rapid development of the construction industry is not met in connection quality, efficiency and operability. Particularly, after 2010, people have more and more requirements on a beautiful environment, so that the country proposes housing industrialization and advocates green, energy-saving and environment-friendly buildings. With the rapid development of the prefabricated building along with the transformation and upgrading of the construction industry, the conventional reinforcing bar connecting technology has to be reformed in such a large background. Through the research of related scientific research institutes in China, the vertical connection problem of concrete members in the fabricated building is well solved through the steel bar grouting sleeve connection. The vertical connection of reinforcing bar mainly adopts half grout muffjoint in assembly integral shear wall structure system and assembly integral concrete frame structure system, and the stress that needs the transmission is born to the mode through mechanical connection to the screw thread of sleeve upper end reinforcing bar mantle fiber and telescopic screw, and the sleeve lower extreme inserts the reinforcing bar, pours special grout material, and after the sclerosis, the reinforcing bar is tightly interlock with grout material and sleeve inner wall and is ensured the vertical connection quality of reinforcing bar, reaches I level joint performance.
The half grout sleeve commonly used on the existing market is divided into the casting sleeve of nodular cast iron and the steel sleeve of steel according to the material, and the former is with low costs but the quality is difficult to guarantee, and the steel sleeve adopts split type more, and the quality is difficult to guarantee, and the smooth and concrete bond stress of sleeve outer arm is less simultaneously, and production efficiency is low simultaneously, the material loss is big, with high costs.
And for the small-diameter semi-grouting sleeve with the diameter of 12-22 mm, a bar is adopted, the inside of the small-diameter semi-grouting sleeve is hollowed to form a grouting cylinder cavity, and then a thread and a convex rib inside the grouting end are milled from the top mechanical connecting end.
And for the large-diameter half grouting sleeve with the diameter of more than 25mm, seamless steel pipes with different thick walls are milled to form a grouting cylinder body, and then the grouting cylinder body and the grouting cylinder body are connected together in a threaded fit mode.
The grouting sleeve produced by the two manufacturing processes has good performance, but the cost is extremely high due to low mechanical processing production efficiency and excessive produced waste. Meanwhile, the quality of the split type assembled sleeve is unreliable.
Therefore, a new process is adopted, and the semi-grouting sleeve produced by using the seamless steel tube is utilized, so that the cost of the sleeve is reduced, the mechanical property of the semi-grouting sleeve is improved, and the quality of the semi-grouting sleeve is improved.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a half grout sleeve structure of No. 45 steel, for solving above-mentioned problem, the utility model discloses a following technical scheme.
The utility model provides a 45 # steel half grout sleeve structure, includes sleeve, prefabricated end reinforcing bar, assembly end reinforcing bar, play thick liquid mouth and grout mouth, telescopic front end is prefabricated end, excessive fixed connection assembly end is passed through to the one end of prefabricated end, threaded hole is opened to the one end of prefabricated end, the external screw thread of threaded hole threaded connection prefabricated end reinforcing bar one end, the assembly end reinforcing bar is installed to the one end of assembly end, open the surface of assembly end has the spiral roll extrusion recess, and the internal surface is provided with the spiral roll extrusion arch, play thick liquid mouth is installed to surface one side of assembly end, and grout mouth is installed to one side in addition, the assembly end reinforcing bar includes single blank and two blank pieces, single blank passes through a blank mould extrusion, two blank pieces pass through two blank mould extrusion, single blank and two blank all include excessive section, A correction section, a necking section and a central shaft control.
Furthermore, the single-piece blank is integrally formed by a neck section, a transition section and a correction section, a central shaft control through hole is formed in the middle of the single-piece blank, and the secondary structure is used for producing the single-piece blank, namely a single sleeve structure.
Furthermore, two blank by correction section, excessive section, necking down section, excessive section and correction section integrated into one piece, and open at the middle part has central axle accuse through-hole, inferior structure is used for producing two blank, double-sleeve structure promptly, then the symmetry cuts off into single sleeve structure, improvement production efficiency that can be better.
Furthermore, the sleeve is processed by adopting a seamless steel pipe, and the seamless steel pipe is produced and processed by spinning necking and spiral rolling processes, so that the production efficiency is improved, and the quality of the semi-grouting sleeve is improved.
Furthermore, the number of the spiral rolling grooves and the number of the corresponding spiral rolling bulges are 4-8.
Further, the transition end is of a radian structure.
Furthermore, friction lines are formed on the surfaces of the prefabricated end reinforcing steel bars and the surfaces of the assembly end reinforcing steel bars, so that the prefabricated end reinforcing steel bars are convenient to take and friction force is improved.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses this scheme the yield is high in the production process, and the succinct flawless of half grout sleeve outward appearance of screw-out, mechanical link wall thickness after the necking down increases, and under the control of temperature, mechanical link stretching resistance improves, adopts this half grout sleeve simulation to use the operating mode to make and connects the test piece, and the sleeve is difficult for damaging.
(2) The process is complete and convenient for automatic processing and production, the waste and the cost are both reduced, and the production efficiency is greatly improved.
(3) The self quality of the grouting sleeve is improved, and the hidden danger of drilling in the grouting sleeve is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the overall explosion structure of the present invention;
fig. 3 is a schematic sectional structure of the present invention;
FIG. 4 is a schematic cross-sectional view of the sleeve of the present invention;
FIG. 5 is a schematic view of the installation structure of the single blank and the single blank mold of the present invention;
FIG. 6 is a schematic view of the installation structure of the two-piece blank member and the two-piece blank member mold of the present invention;
FIG. 7 is a schematic structural view of a single blank mold according to the present invention;
fig. 8 is a schematic structural view of the two-piece blank mold of the present invention.
The reference numbers in the figures illustrate:
the steel bar splicing and straightening device comprises a sleeve 1, a prefabricated end steel bar 2, an external thread 21, an assembly end steel bar 3, a grout outlet 4, a grouting nozzle 5, a prefabricated end 6, an excessive end 7, an assembly end 8, a spiral rolling protrusion 81, a spiral rolling groove 9, a threaded hole 10, a single blank 11, a 111 single blank mold, a 12 double blank mold, a 121 double blank mold, an excessive section 13, a 14 correction section, a 15 necking section and a 16 central shaft control.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-8, a No. 45 steel semi-grouting sleeve structure comprises a sleeve 1, a prefabricated end steel bar 2, an assembly end steel bar 3, a grout outlet 4 and a grout outlet 5, wherein the front end of the sleeve 1 is a prefabricated end 6, one end of the prefabricated end 6 is fixedly connected with the assembly end 8 through a transition end 7, one end of the prefabricated end 6 is provided with a threaded hole 10, the threaded hole 10 is in threaded connection with an external thread 21 at one end of the prefabricated end steel bar 2, one end of the assembly end 8 is provided with the assembly end steel bar 3, the outer surface of the assembly end 8 is provided with a spiral rolling groove 9, the inner surface is provided with a spiral rolling bulge 81, one side of the outer surface of the assembly end 8 is provided with the grout outlet 4, the other side is provided with the grout outlet 5, the assembly end steel bar 3 comprises a single-piece blank piece 11 and a double-piece blank piece 12, the single-piece blank piece 11 is extruded through a double-piece blank mold 111, the double-piece blank piece 12 is extruded and extruded through a double-piece mold 121, the single piece blank 11 and the double piece blank 12 each include a transition section 13, a correction section 14, a neck section 15, and a central axis control 16.
Further preferably, the single-piece blank 11 is integrally formed by the necking section 15, the transition section 13 and the correction section 14, the central portion of the single-piece blank is provided with a central shaft control 16 through hole, and the secondary structure is used for producing the single-piece blank 11, namely, a single sleeve structure.
Preferably, the two-piece blank 12 is formed by integrally forming a correction section 14, a transition section 13, a necking section 15, the transition section 13 and the correction section 14, and a central shaft control 16 through hole is formed in the middle, and a secondary structure is used for producing the two-piece blank 12, namely, a double-sleeve structure, and then symmetrically cut into a single-sleeve structure, so that the production efficiency can be better improved.
Further preferably, the sleeve 1 is processed by adopting a seamless steel tube, and the seamless steel tube is produced and processed by spinning necking and spiral rolling processes, so that the production efficiency is improved, and the quality of the semi-grouting sleeve is improved.
Further preferably, the number of the spirally rolled grooves 9 and the number of the corresponding spirally rolled protrusions 81 are 4-8, the inner and outer wall forming shapes of the half-grouting sleeve, the number of the spirally rolled grooves 9 and the number of the corresponding inner wall protrusions are determined by the spiral roll forming process, and the specification of the half-grouting sleeve is determined according to the diameter of the connecting steel bars, including but not limited to all connecting steel bars with the diameter of 12mm to 40 mm.
Further preferably, the transition end 7 is of a curved configuration.
Further preferred, the friction lines are formed on the surfaces of the prefabricated end reinforcing steel bars 2 and the surfaces of the assembly end reinforcing steel bars 3, the prefabricated end reinforcing steel bars are convenient to take, and friction force is improved.
Further preferably, the production method of the antibacterial and deodorant sock comprises the following steps:
p1: the sleeve 1 is processed by adopting a seamless steel pipe, firstly, an annealing treatment is carried out on a raw material (the seamless steel pipe), the raw material is cut according to the specification of a half-grouting sleeve, and the specification of the sleeve 1 is from 12mm to 40mm in diameter;
p2: heating one end of the seamless steel pipe, adopting a special die, forming a mechanical connecting end blank by using a spinning necking process, performing internal surface treatment by a numerical control lathe, milling threads by machining, wherein the thread pitch is 2-3 mm, the length of a threading end is 1.4-1.6M (M refers to the diameter of a connecting steel bar), and the thickness of the mechanical connecting end is 40% thicker than that of the original seamless steel pipe;
p3: the inner surface and the outer surface of a cylinder body of the semi-grouting sleeve adopt a spiral rolling ring process on the surface of a seamless steel pipe, key grooves are formed in the cylinder body, the outer wall of the sleeve 1 is provided with 4-8 grooves, the bond stress between the sleeve 1 and concrete is increased, the grooves extend along the circumferential direction of the outer wall and correspond to the protrusions on the inner wall of the grooves, the height of the protrusions is 1.5-2.5mm, the wall thickness of the cylinder body is 4mm, and the bond stress between grouting materials and the inner wall of the sleeve is increased;
p4: and automatically punching a grouting hole and a grout outlet at the scribing position of the cylinder, and performing annular automatic welding on a grouting nozzle 5 and the grout outlet 4 by adopting carbon dioxide gas shielded welding to form a complete semi-grouting sleeve.
Further preferably, the P1 annealed state cannot be bypassed by electroplating, polishing, cutting, etc.
The utility model has the advantages that:
(1) the utility model discloses this scheme the yield is high in the production process, and the succinct flawless of half grout sleeve outward appearance of screw-out, mechanical link wall thickness after the necking down increases, and under the control of temperature, mechanical link stretching resistance improves, adopts this half grout sleeve simulation to use the operating mode to make and connects the test piece, and the sleeve is difficult for damaging.
(2) The process is complete and convenient for automatic processing and production, the waste and the cost are both reduced, and the production efficiency is greatly improved.
(3) The self quality of the grouting sleeve is improved, and the hidden danger of drilling in the grouting sleeve is avoided.
The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (7)
1. The utility model provides a 45 half grout sleeve structure of steel, includes sleeve (1), prefabricated end reinforcing bar (2), assembly end reinforcing bar (3), grout outlet (4) and grout outlet (5), its characterized in that: the front end of the sleeve (1) is a prefabricated end (6), one end of the prefabricated end (6) is fixedly connected with an assembly end (8) through a transition end (7), a threaded hole (10) is formed in one end of the prefabricated end (6), the threaded hole (10) is in threaded connection with an external thread (21) at one end of a prefabricated end reinforcing steel bar (2), the assembly end reinforcing steel bar (3) is installed at one end of the assembly end (8), a spiral rolling groove (9) is formed in the outer surface of the assembly end (8), a spiral rolling bulge (81) is formed in the inner surface of the assembly end, a grout outlet (4) is installed on one side of the outer surface of the assembly end (8), a grouting nozzle (5) is installed on the other side of the assembly end reinforcing steel bar (3), the assembly end reinforcing steel bar comprises a single-piece blank piece (11) and a double-piece blank piece (12), and the single-piece blank piece (11) is extruded and formed through a single-piece blank piece mold (111), the two-piece blank (12) is formed by extrusion through a two-piece blank die (121), and the single-piece blank (11) and the two-piece blank (12) respectively comprise a transition section (13), a correction section (14), a necking section (15) and a central shaft control (16).
2. The steel 45 # half grouting sleeve structure according to claim 1, wherein: the single-piece blank (11) is integrally formed by a necking section (15), a transition section (13) and a correction section (14), and a central shaft control (16) through hole is formed in the middle of the single-piece blank.
3. The steel 45 # half grouting sleeve structure according to claim 1, wherein: the double-piece blank (12) is formed by integrally forming a correcting section (14), a transition section (13), a necking section (15), the transition section (13) and the correcting section (14), and a central shaft control (16) through hole is formed in the middle of the double-piece blank.
4. The steel 45 # half grouting sleeve structure according to claim 2, wherein: the sleeve (1) is processed by adopting a seamless steel pipe.
5. The steel 45 # half grouting sleeve structure according to claim 1, wherein: the number of the spiral rolling grooves (9) corresponds to the number of the spiral rolling protrusions (81), and 4-8 grooves are formed in the spiral rolling grooves (9).
6. A45 # steel semi-grouting sleeve structure as claimed in claim 4, wherein: the transition end (7) is of a radian structure.
7. The steel 45 # half grouting sleeve structure according to claim 1, wherein: the surfaces of the prefabricated end reinforcing steel bars (2) and the surfaces of the assembly end reinforcing steel bars (3) are both provided with friction grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021023284.3U CN214941666U (en) | 2020-06-07 | 2020-06-07 | No. 45 steel half grout sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021023284.3U CN214941666U (en) | 2020-06-07 | 2020-06-07 | No. 45 steel half grout sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214941666U true CN214941666U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021023284.3U Expired - Fee Related CN214941666U (en) | 2020-06-07 | 2020-06-07 | No. 45 steel half grout sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214941666U (en) |
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2020
- 2020-06-07 CN CN202021023284.3U patent/CN214941666U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Jiheng metal material Co.,Ltd. Assignor: Shandong Jinheng Precision Steel Pipe Co.,Ltd. Contract record no.: X2021370000008 Denomination of utility model: A 45 steel semi grouting sleeve structure Granted publication date: 20211130 License type: Common License Record date: 20210325 Assignee: SHENZHEN CITY MODERN BUILDING SCIENCE AND TECHNOLOGY Co.,Ltd. Assignor: Shandong Jinheng Precision Steel Pipe Co.,Ltd. Contract record no.: X2021370000007 Denomination of utility model: A 45 steel semi grouting sleeve structure Granted publication date: 20211130 License type: Common License Record date: 20210325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |