CN205171839U - Reinforcing bar grout connecting sleeve - Google Patents
Reinforcing bar grout connecting sleeve Download PDFInfo
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- CN205171839U CN205171839U CN201520827485.1U CN201520827485U CN205171839U CN 205171839 U CN205171839 U CN 205171839U CN 201520827485 U CN201520827485 U CN 201520827485U CN 205171839 U CN205171839 U CN 205171839U
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- sleeve
- grout
- sleeve body
- special joint
- steel
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Abstract
The utility model discloses a reinforcing bar grout connecting sleeve who uses in cast member, include: sleeve body, special joint and grout chamber port internal thread. The special joint is become by iron or steel, adopts welding or threaded connection with the sleeve body, and the part that the special joint was installed beyond the sleeve body is equipped with the slot, sleeve body accessible grout chamber port internal thread and steel sleeve mounting are connected to fix in prefabricated component's template. The utility model has the advantages that the special joint is reliable with this body coupling of sleeve, closes closely with grout, play thick liquid duct ligation, hourglass thick liquid problem has been avoided to firm in connection, the zero clearance of grout sleeve and template, has still improved telescopic installation accuracy, can show improvement prefabricated component production efficiency, reduce manufacturing cost, promotes the quality of prefabricated component product.
Description
Technical field
The utility model relates to a kind of reinforcing bar grouting branch sleeve be applied in prefabricated concrete structure prefabricated post, dry wall, adopts this sleeve to be that the prefabricated units production efficiency, cost, quality etc. of connector is better than existing grouting branch sleeve.
Background technology
In modern prefabricated concrete structure, the steel bar stress of prefabricated units mainly adopts sleeve grouting method of attachment to connect.After connecting reinforcement inserts the grouting chamber of grout sleeve, the special high-strength grout of sleeve connection is injected in grouting chamber, be anchored at by connecting reinforcement after grouting material sclerosis in sleeve grouting chamber, namely reinforcing bar and sleeve link together, and realize the connection of prefabricated units reinforcing bar with this.The international industry standard of China " reinforced bar sleeve grouting connects application technology code " JGJ355-2015, has made relevant regulations to the connection of sleeve grouting joint, application and examination.
When prefabricated units are produced, grouting branch sleeve is embedded in concrete component, component to be reserved the plasma discharge hole to the grout hole of joint branch sleeve grouting intra-bladder instillation grouting material and exhaust, discharge slurry, this hole is generally formed with plastic pipe, one end of pipe connects grout hole, the plasma discharge hole of grout sleeve, on the workpiece that the external surface or be connected to that the other end reaches concrete component is communicated with external surface of structural member.The grout sleeve that conventional casting techniques is produced is in order to reduce casting flaw, casting does not connect grouting, the joint of outlet pipe, but special grout hole is provided with on the sidewall of sleeve, plasma discharge hole, when prefabricated units are produced, with the grout pipe of hard material as PVC, discharge pipe is inserted in the grouting of sleeve, in plasma discharge hole, the grouting of pipe outer wall and sleeve, plasma discharge hole inwall is adjacent to, pipe end withstands on the limiting stand bottom hole, when preventing component from building with this, concrete slurry enters barrel bore, its weak point is: grouting, grouting on discharge pipe and branch sleeve, plasma discharge hole will coordinate closely, therefore to the outside dimension of plastic pipe, aperture precision etc. on the strength of materials and sleeve has strict requirement, if cannot above-mentioned requirements be reached, the cooperation in pipe and hole will have gap because of not tight, easily sleeve grouting chamber is entered from this spillage during concreting, the even serious spillage accident that comes off from hole of generator tube.The novel steel grout sleeve of China's exploitation is in recent years then processing grouting in sleeve lateral wall, plasma discharge hole, in grouting, special joint is installed in hole in plasma discharge, current special joint and installation thereof mainly contain two kinds of modes, a kind of is adopt the adapter of plastic be threaded, , another kind is the metallic pipe coupling compressing compression fit connection, but in practical application, these two kinds of joints and sleeve connection are not all 100% safe and reliable, because sleeve is when installing and carry and member reinforcing steel bar assembles, extruding between this special joint inevitable and reinforcing bar or other object, collision, these extruding, impact force can cause this joint and loosening of sleeve connection even to drop, joint looseness situation is also not easily found, and find that joint gets loose problem after the assembling of member reinforcing steel bar cage, be difficult to change or consolidation process this joint in densely arranged reinforcing bar, when finally causing component concreting, concrete mortar impacts joint and causes joint to depart from, the accident of sleeve spillage happens occasionally and is difficult to avoid.
In addition, grout sleeve is the connecting end portion being embedded in prefabricated units, for ensureing that component is connected smoothly with the reinforcing bar of other structure or component, except the position of the reinforcing bar insertion stomidium first ensureing sleeve grouting chamber is wanted accurately, also need to ensure that the axes normal of grout sleeve is in component connecting end surface, so that when Components installation, the reinforcing bar on another component not only can align the grout sleeve with this component respectively, and all connecting reinforcements can also be inserted into the degree of depth of regulation in sleeve grouting chamber smoothly.At present, component is produced middle sleeve fixture and is mainly adopted rubber plug fixation kit and axostylus axostyle jack type fixture, the deficiency of rubber plug fixation kit is: though rubber parts sealing effectiveness is good, but application life is limited, cost cannot reduce, and full grout sleeve that is large for size, Heavy Weight, rubber fixation kit is difficult to the axes normal precision ensureing sleeve; The deficiency of axostylus axostyle jack type fixture is: the gap of inserted link and jack is large, cannot ensure that sleeve end face and template fit tightly, also there is gap in axostylus axostyle and the sleeve chamber endoporus that is in the milk, not only there is sleeve axis skew problems, when also causing concreting, cement grout enters sleeve by the gap between sleeve end face and component template, sleeve grouting chamber endoporus and the gap of fixture axostylus axostyle, makes sleeve deflection and spillage become a common problem.
Therefore, material consumption, cost of labor, production efficiency, product quality that the grouting of existing grout sleeve, the special joint in plasma discharge hole and sleeve fixing component connected mode are all produced component cause many adverse effects, be difficult to make prefabricated concrete structure play low cost, high efficiency feature, affect industrialized building universal and development in China.
Utility model content
For the deficiency of described reinforcing bar grouting branch sleeve, the purpose of this utility model is: provide a kind of reinforcing bar grouting branch sleeve, realized by following technical scheme:
A kind of reinforcing bar grouting branch sleeve, be divided into the full grout sleeve of steel and steel half grout sleeve, full grout sleeve composition comprises: sleeve body, grout hole, special joint, grouting chamber, caging bolt, plasma discharge hole and rubber seal, half grout sleeve composition comprises: sleeve body, grout hole, special joint, grouting chamber, plasma discharge hole, position limiting convex ring, steel bar joint screw hole, is characterized in that:
The material of described special joint is iron or steel, one end of described special joint is arranged in grout hole, plasma discharge hole respectively, the other end is stayed outside sleeve body, the external surface that described special joint stays the outer part of sleeve body is provided with groove, and described special joint and sleeve body adopt and to be threaded or welding manner links together.
Described sleeve body is provided with straight thread near the port endoporus place in the grouting chamber of grout hole side, and the pitch of described straight thread is 1.5mm ~ 3mm, and reach is within 15mm.
The sleeve body of described half grout sleeve is threaded connection by plug screw and cylindrical shell to combine.
The utility model has the advantages that special joint adopts iron or steel to make, the strength of materials is high, not fragile under extruding at work, collision, special joint adopts with sleeve body and welds or be threaded, firmly, gapless, not easily loosen in sleeve use procedure or come off, special joint closely, not easily gets loose with the connection of the groove other end and grouting, pulp plastic pipe, sleeve body is near the grouting chamber port endoporus straight thread that place establishes of grout hole side, can be connected with mating externally threaded steel screw-type fixture, grout sleeve is strained and fixed on component template, the end face of sleeve body coordinates with template closely, the diameter of thread that sleeve is connected with steel screw-type fixture is large, fastening force is strong, the fastening required number of turns of rotating is few, significantly improve sealing effectiveness between grout sleeve and template, the positional precision of socket port and axis all obtains Reliable guarantee, component cement paste enters may significantly reducing of sleeve grouting chamber from joint and socket port, this outer sleeve adopts the rotation number of turns being threaded fastening to be greatly less than rubber plug fixture, supporting steel screw-type fixture far exceedes rubber plug sleeve fixing component application life, so the utility model can make the processing in precast unit manufacturing process, management, material cost significantly reduces, and work person works efficiency, component qualification rate, component quality significantly improves, popularizing application prospect is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation of full grout sleeve of the present utility model;
Fig. 2 is the structural representation of integral type half grout sleeve of the present utility model;
Fig. 3 is the structural representation of combined semi grout sleeve of the present utility model;
Fig. 4 is full grout sleeve installment state schematic diagram of the present utility model.
Fig. 5 is half grout sleeve installment state schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing Fig. 1 ~ Fig. 5 and embodiment, the utility model is described further.
See Fig. 1, shown a kind of reinforcing bar grouting branch sleeve is the full grout sleeve of steel, and the composition of the full grout sleeve of described steel comprises: sleeve body (1), grout hole (2), special joint (3), grouting chamber (4), caging bolt (5), plasma discharge hole (6), special joint external surface groove (7) and rubber seal (8).
Described special joint (4) is made up of iron or steel;
One end of described special joint (3) is arranged in grout hole (2) or plasma discharge hole (6) respectively, and the other end stays sleeve body (1) outward;
Described special joint (3) stay sleeve body (1) outward part external surface be provided with groove (7);
Described special joint (3) and sleeve body (1) adopt to be threaded or Type of Welding links together.
Described sleeve body (1) is provided with straight thread (9) near the port endoporus place in the grouting chamber (4) of grout hole (2) side;
The pitch of described straight thread (9) is 1.5mm ~ 3mm, and reach is within 15mm.
Embodiment 1, installment state schematic diagram shown in Figure 4.
Connecting reinforcement (19) is inserted through rubber seal (8) in the grouting chamber (4) of sleeve body (1), grouting, plasma discharge plastic pipe (16) is enclosed within two special joints (3) respectively and goes up and stride across special joint external surface groove (7), grouting, the other end of plasma discharge plastic pipe (16) is enclosed within the union (17) with magnet base respectively, grouting chamber (4) the end close member end face die plate (14) of sleeve body (1) near grout hole (2) side, from member end face die plate (14) outside, the externally threaded steel screw-type fixture (15) matched with the straight thread (9) with sleeve body (1) is inserted into the inner side of member end face die plate (14) through the sleeve locating hole member end face die plate (14), again grouting chamber (4) endoporus of sleeve body (1) aimed at and be enclosed within steel screw-type fixture (15) axle head, steel screw-type fixture (15) external end head from member end face die plate (14) outside is rotated with spanner, by the straight thread (9) of sleeve body (1) and being threaded of steel screw-type fixture (15), and the end face being screwed onto sleeve body (1) is close to member end face die plate (14) medial surface, rotational sleeve body (1) makes grout hole (2) again, special joint (3) on plasma discharge hole (6) is towards the table top (18) of member bottom section, grouting, the union with magnet base (17) that plasma discharge plastic pipe (16) connects is inhaled on table top (18), then sleeve body (1) is fixed, steel screw-type fixture (15) external end head is rotated with spanner, sleeve body (1) is fastened on member end face die plate (14) completely.Employing pitch is 1.5mm ~ 3mm, the short thread structure of reach within 15mm, can ensure that the supporting capacity of sleeve body (1) grouting chamber port can not have detailed reduction because of machining screw, and the required steel screw-type fixture (15) 3 that rotates of fastening sleeve body (1) encloses left and right, very securely sleeve body (1) can be fixed, the installation production efficiency of sleeve can be improved.Finally, again the middle part of connecting reinforcement (19) to sleeve body (1) is inserted until its end withstands on caging bolt (5), namely reach setting insertion depth, then with thin wire, connecting reinforcement (19) and other horizontal hoop etc. are bundled fixing.Successively grout sleeves all in component and connecting reinforcement are installed after fixing, each horizontal hoop adjusted position is also fixing, concrete members can be built, through vibrating, maintenance, after concrete reaches strength of mould stripping, back out steel screw-type fixture (15), check the shaping every presentation quality of prefabricated units, steaming kiln can be sent after qualified to carry out High Temperature Curing, until concrete members reaches intensity of dispatching from the factory, namely the production of this component accuse complete.
See Fig. 2, shown a kind of reinforcing bar grouting branch sleeve is steel integral half grout sleeve, and the composition of described steel half grout sleeve comprises: sleeve body (1), grout hole (2), special joint (3), grouting chamber (4), plasma discharge hole (6), special joint groove (7), reinforcing bar position limiting convex ring (10), steel bar joint screw hole (11).
Described special joint (4) is made up of iron or steel;
One end of described special joint (3) is arranged in grout hole (2) or plasma discharge hole (6), and the other end stays sleeve body (1) outward;
Described special joint (3) stay sleeve body (1) outward part external surface be provided with groove (7);
Described special joint (3) and sleeve body (1) adopt to be threaded or Type of Welding links together.
Described sleeve body (1) is provided with straight thread (9) near the port endoporus place in the grouting chamber (4) of grout hole (2) side;
The pitch of described straight thread (9) is 1.5mm ~ 3mm, and reach is within 15mm.
Described sleeve body (1) opposite side be provided with steel bar joint screw hole (11), the bottom of steel bar joint screw hole (11) is provided with reinforcing bar position limiting convex ring (10).
Embodiment 2, installment state schematic diagram shown in Figure 5.
The end of connecting reinforcement (19) is processed connecting thread and is screwed in the steel bar joint screw hole (11) of sleeve body (1), the termination of connecting reinforcement (19) holds out against on reinforcing bar position limiting convex ring (10), the installation presentation quality of reinforcing bar and screw-down torque value meet the related request of national sector standard JGJ107, then will be in the milk, plasma discharge plastic pipe (16) is inserted in two special joints (3) respectively and goes up and stride across special joint external surface groove (7).Following steps are identical with each step of embodiment 1, until component is produced complete.
Steel combination half grout sleeve of a kind of reinforcing bar grouting branch sleeve finally shown in Figure 3, the composition of described steel half grout sleeve comprises: sleeve body (1), grout hole (2), special joint (3), grouting chamber (4), plasma discharge hole (6), special joint external surface groove (7), plug screw (12), cylindrical shell (13) reinforcing bar position limiting convex ring (10), steel bar joint screw hole (11).
Described sleeve body (1) is threaded connection by plug screw (12) and cylindrical shell (13) and combines.
Described special joint (4) is made up of iron or steel;
One end of described special joint (3) is arranged in grout hole (2) or plasma discharge hole (6), and the other end stays sleeve body (1) outward;
Described special joint (3) stay sleeve body (1) outward part external surface be provided with groove (7);
Described special joint (3) and sleeve body (1) adopt to be threaded or Type of Welding links together.
Described sleeve body (1) is provided with straight thread (9) near the port endoporus place in the grouting chamber (4) of grout hole (2) side;
The pitch of described straight thread (9) is in 1.5mm ~ 3mm, and reach is in 1.5mm ~ 15mm.
Described sleeve body (1) opposite side be provided with steel bar joint screw hole (11), the bottom of steel bar joint screw hole (11) is provided with reinforcing bar position limiting convex ring (10).
Embodiment 3,
This embodiment difference from Example 2 is: sleeve body (1) is made up of plug screw (12), cylindrical shell (13), adopt fabricated structure, seamless steel pipe can be used to process sleeve body (13), with round steel or polygonal steel processing plug screw (12), again plug screw (12), cylindrical shell (13) are together by a threaded connection and make sleeve body (1), the problem that difficulty of processing is large, cost of production is high of Large-size rebar steel half grouting branch sleeve can be solved with this.Due to sleeve products dispatch from the factory before plug screw (12) be in place and reliably locked, therefore, the present embodiment installs and uses identical with steel integral half grout sleeve, specifically shown in Figure 5 installment state schematic diagram.
More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection domain of the present utility model.
Claims (2)
1. a reinforcing bar grouting branch sleeve, be divided into the full grout sleeve of steel and steel half grout sleeve, full grout sleeve composition comprises: sleeve body (1), grout hole (2), special joint (3), grouting chamber (4), caging bolt (5), plasma discharge hole (6) and rubber seal (8), half grout sleeve composition comprises: sleeve body (1), grout hole (2), special joint (3), grouting chamber (4), plasma discharge hole (6), position limiting convex ring (10), steel bar joint screw hole (11), is characterized in that:
Described special joint (3) is made up of iron or steel, one end of described special joint (3) is arranged in grout hole (2) or plasma discharge hole (6) respectively, the other end stays sleeve body (1) outward, the external surface that described special joint (3) stays sleeve body (1) part is outward provided with groove (7), and described special joint (3) and sleeve body (1) adopt to be threaded or Type of Welding links together;
Described sleeve body (1) is provided with straight thread (9) near grouting chamber (4) the port endoporus place of grout hole (2) side, the pitch of described straight thread (9) is 1.5mm ~ 3mm, and reach is within 15mm.
2. a kind of reinforcing bar grouting branch sleeve as claimed in claim 1, is characterized in that: the sleeve body (1) of described half grout sleeve is threaded connection by plug screw (12) and cylindrical shell (13) to combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827485.1U CN205171839U (en) | 2015-10-26 | 2015-10-26 | Reinforcing bar grout connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827485.1U CN205171839U (en) | 2015-10-26 | 2015-10-26 | Reinforcing bar grout connecting sleeve |
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| Publication Number | Publication Date |
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| CN205171839U true CN205171839U (en) | 2016-04-20 |
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| CN201520827485.1U Active CN205171839U (en) | 2015-10-26 | 2015-10-26 | Reinforcing bar grout connecting sleeve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501495A (en) * | 2016-10-21 | 2017-03-15 | 河海大学 | The detection means and detection method of grouting material degree of compaction in a kind of sleeve |
| CN106541490A (en) * | 2016-12-22 | 2017-03-29 | 华侨大学 | A kind of preparation facilitiess and its using method of prefabricated connecting hole |
-
2015
- 2015-10-26 CN CN201520827485.1U patent/CN205171839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501495A (en) * | 2016-10-21 | 2017-03-15 | 河海大学 | The detection means and detection method of grouting material degree of compaction in a kind of sleeve |
| CN106541490A (en) * | 2016-12-22 | 2017-03-29 | 华侨大学 | A kind of preparation facilitiess and its using method of prefabricated connecting hole |
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