CN216616577U - Self-locking type steel bar sleeve - Google Patents
Self-locking type steel bar sleeve Download PDFInfo
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- CN216616577U CN216616577U CN202123206158.9U CN202123206158U CN216616577U CN 216616577 U CN216616577 U CN 216616577U CN 202123206158 U CN202123206158 U CN 202123206158U CN 216616577 U CN216616577 U CN 216616577U
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Abstract
The utility model belongs to the technical field of assembled structure grouting, and discloses a self-locking steel bar sleeve, which aims to solve the problems in the connection and force transmission of an assembled structure in the prior art. The utility model adopts the double-thread taper technology, the taper of the sleeve is convenient for filling, and air is easier to discharge during filling. This technique is through changing the biography power mode, and the biography power route is more clear and definite, and the tradition mode is through the mutual parcel biography power between reinforcing bar, grout material, the sleeve, and this technique more is favorable to the reinforcing bar to pass power, has solved prefabricated assembled structure node and has passed power reliability.
Description
Technical Field
The utility model relates to the technical field of assembly type structure grouting, in particular to a self-locking type steel bar sleeve.
Background
The stress of a steel knot which is communicated up and down in a reinforced concrete structure is the key point of the stress of the structure, how to reliably transfer the stress of a steel bar up and down is a difficult point, and the steel bar joint dislocation technology is adopted during the binding of the traditional cast-in-place steel bar concrete structure steel bars, so that the percentage of the steel bar joints with the same section is strict, and the condition that the steel bar joints appear on the same section to increase the safety storage is avoided. If the prefabricated part steel bar joint is same cross-section, grout sleeve construction quality directly influences structural safety, and the nodal connection is the structural weak area and all assembled structure connected node is beam column core area, and beam column core area is earthquake easily damaged area.
The construction process of the steel bar sleeve grouting connection mainly comprises the steps of completing the connection of a sleeve and a steel bar by a prefabricated part in a factory, installing and fixing the sleeve on a template, connecting a grout inlet pipeline and a grout outlet pipeline with the sleeve, and completing the installation of the part, the sealing of a grouting cavity, the mixing of grouting materials by adding water and grouting the sleeve in a building construction site. At present cast-in-place steel structure concrete structure reinforcing bar mainly adopts welding or mechanical connection, is whole with the steel bar connection, mainly relies on power transmission between reinforcing bar, grout material and the sleeve, receives reinforcing bar butt joint to influence, and the steel sleeve is longer, and the easy hollowing of sleeve when pouring the grout material, and grout sleeve is pre-buried in the concrete, and the detection degree of difficulty is high, and prior art can't solve above-mentioned technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of assembly type structure connection and force transmission in the prior art, and provides a self-locking type steel bar sleeve grouting connection device which is simple in structure and capable of providing construction quality.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a from lock type steel sleeve, includes the sleeve, and telescopic one side is the slip casting mouth, and telescopic opposite side is the exhaust nozzle, runs through in the sleeve and is equipped with the reinforcing bar, and the rubber buffer all is equipped with at telescopic both ends, is equipped with the arc steel cap head on the reinforcing bar in the sleeve, and is equipped with a plurality of movable reaction between arc steel cap head and the telescopic inner wall and props, and the one end that the movable reaction propped and telescopic inner wall elastic connection, the other end that the movable reaction propped clamps on the arc steel cap head.
Furthermore, the inner wall and the outer wall of the sleeve are both provided with threads.
Further, the sleeve is a conical steel sleeve with two small ends and a large middle part.
Furthermore, the movable counter-force support is a locking steel plate, one end of the locking steel plate is connected to the inner wall of the sleeve through a spring, and the other end of the locking steel plate is matched with the arc-shaped steel cap head.
Compared with the prior art, the utility model has the following beneficial effects:
the self-locking type steel bar sleeve grouting connecting device is characterized in that the steel bar end part is provided with a steel cap head which is of an arc-shaped structure, force is dispersed and transmitted through the arc-shaped steel cap head when a steel bar is stressed, the self-locking type new grouting sleeve adopts a steel bar end part locking technology and changes the force transmission direction of the steel bar, the sleeve height is greatly reduced, and the stress diffusion is oblique. Partial force is transmitted to the conical sleeve through the counter-force bearing, the device directly changes the force transmission direction, the traditional structure can only transmit the stress through the vertical direction, and the connecting sleeve is long. The device will pass power through the slant, turns into horizontal force with partial vertical power, reduces vertical power transmission, reduces reinforcing bar anchor length, reduces the sleeve height, reserves reinforcing bar length short than traditional grout sleeve when assembling on the scene, is favorable to component transportation and hoist and mount, and construction technology improves greatly, and partial horizontal force is eliminated through the toper sleeve by oneself, does not exert an influence to horizontal atress. The tapered sleeve is in butt joint with two tapers, and the outer side of the sleeve forms a biconical shape, so that the tapered sleeve is linearly pulled compared with the traditional structure, and is more favorable for being stressed together with concrete.
The sleeve adopts a double-thread taper technology, the taper of the sleeve is convenient for filling, and air is easier to discharge during filling. This technique is through changing the biography power mode, and the biography power route is more clear and definite, and the tradition mode is through the mutual parcel biography power between reinforcing bar, grout material, the sleeve, and this technique more is favorable to the reinforcing bar to pass power, has solved prefabricated assembled structure node and has passed power reliability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the steel cap head of the present invention.
Fig. 3 is a schematic structural view of the movable reaction support of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 1.
The reference numerals have the following meanings: 1. concrete; 2. reinforcing steel bars; 3. an exhaust nozzle; 4. a movable reaction support; 41. a connecting bolt; 42. connecting the steel plates by bolts; 43. a spring; 44. a support steel plate; 45. locking the round steel; 5. an arc-shaped steel cap head; 6. a sleeve; 7, grouting nozzles; 8, rubber plug; 9. grouting material; 10. a convex arc surface.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 4, a self-locking steel sleeve comprises a sleeve 6, the sleeve 6 is a tapered steel sleeve with two small ends and a large middle part, and both the inner wall and the outer wall of the sleeve 6 are threaded surfaces.
The slip casting mouth 7 is on one side of sleeve 6, and the opposite side of sleeve 6 is exhaust nozzle 3, and the reinforcing bar 2 has all been penetrated at the both ends of sleeve 6, and steel cap head 5 is equipped with to 2 tip of reinforcing bar in the sleeve 6, and the rubber buffer 8 is equipped with in 2 departments of sleeve 6's both ends installation reinforcing bar, is equipped with locking mechanism between the inner wall of steel cap head 5 and sleeve 6.
The locking mechanism comprises a plurality of movable counter-force supports 4, one end of each movable counter-force support 4 is elastically connected with the inner wall of the sleeve 6, and the other end of each movable counter-force support 4 is clamped on the steel cap head 5. The steel cap head 5 is a cylindrical steel cap head welded at the end part of the steel bar 2, and a convex arc-shaped surface 10 matched with the end part of the movable counter-force support is arranged at the welding position of the cylindrical steel cap head and the steel bar 2.
The reaction supports are divided into an upper group and a lower group, and each group is provided with 3-4 reaction supports.
When the steel bar reinforcing sleeve is manufactured, a pair of conical sleeves is prefabricated, the size of a small conical opening of each conical sleeve is d +12mm, the size of a large conical opening of each conical sleeve is d +40mm, the minimum thickness of a conical side wall of each conical sleeve is 2mm, the height of each conical sleeve is 5dmm, and d is the diameter of a steel bar 2. And then welding a cylindrical steel cap head 5 at the end part of the steel bar 2, wherein the joint of the steel cap head 5 and the steel bar 2 is in arc transition, the diameter d +8mm of the steel cap head 5 is 10mm-16mm of the cylindrical steel cap head, the welding part is welded into a convex arc surface, and the height of a welding leg is 4-5 mm. Then, a plurality of reaction supporting round steel 45 are elastically welded at the position which is 2d away from the conical large opening through a spring 43, the diameter of each reaction supporting round steel 45 is 6-10mm, then an exhaust base pipe is welded at the position, close to the conical small opening, of one conical sleeve, a grouting base pipe is welded at the position, close to the conical small opening, of the other conical sleeve, and then a pair of conical sleeves are butt-welded to form a sleeve 6 which is large in the middle and small in two ends. And then, the steel bar 2 with the steel cap head 5 penetrates into the sleeve 6 from two ends of the sleeve 6 respectively, so that the steel cap head 5 is locked with the movable counter-force support 4, the rubber plug 8 is arranged at the conical small opening, the exhaust extension pipe is connected to the exhaust base pipe in a threaded manner, and the grouting extension pipe is connected to the grouting base pipe in a threaded manner.
The method can also be implemented when the counterforce support is manufactured: and a support steel plate 44 is welded on one side of each reaction force support round steel 45, two springs 43 are welded on the support steel plate 44, bolt connecting steel plates 42 are welded at the end parts of the springs 43, and the bolt connecting steel plates 42 are uniformly arranged at positions 2d away from the conical large opening through connecting bolts 41 to form a reaction force support.
During the use, prefabricate the assembled grout sleeve that will prepare in concrete 1, slip casting extension pipe and exhaust extension pipe reserve outside, then carry out grout 9 through slip casting extension pipe in to sleeve 6, stop when grout 9 overflows from exhaust extension pipe, form the effect of upper and lower biography power auto-lock anchor each other after the final set.
Claims (7)
1. The utility model provides a from lock type steel sleeve, includes sleeve (6), and one side of sleeve (6) is slip casting mouth (7), and the opposite side of sleeve (6) is exhaust nozzle (3), characterized by: the steel bar (2) are penetrated into the two ends of the sleeve (6), the steel cap head (5) is mounted at the end part of the steel bar (2) in the sleeve (6), and a locking mechanism is mounted between the steel cap head (5) and the inner wall of the sleeve (6).
2. The self-locking reinforcing steel bar sleeve as claimed in claim 1, wherein: the locking mechanism comprises a plurality of movable reaction supports (4), one end of each movable reaction support (4) is elastically connected with the inner wall of the sleeve (6), and the other end of each movable reaction support (4) is clamped on the steel cap head (5).
3. The self-locking reinforcing steel bar sleeve as claimed in claim 2, wherein: the steel cap head (5) is a cylindrical steel cap head welded at the end part of the steel bar (2), and a protruding arc-shaped surface (10) matched with the end part of the movable counter-force support is arranged at the welding position of the cylindrical steel cap head and the steel bar (2).
4. The self-locking reinforcing steel bar sleeve as claimed in claim 1, wherein: rubber plugs (8) are arranged at the positions of the two ends of the sleeve (6) where the reinforcing steel bars (2) are arranged.
5. A self-locking rebar sleeve as claimed in claim 3, wherein: the inner wall and the outer wall of the sleeve (6) are both threaded surfaces.
6. The self-locking reinforcing steel bar sleeve as claimed in claim 5, wherein: the sleeve (6) is a conical steel sleeve with two small ends and a large middle part.
7. A self-locking rebar sleeve as claimed in claim 3 or claim 5, wherein: the movable counter-force support (4) is locking round steel (45), one end of the locking round steel (45) is connected to the inner wall of the sleeve (6) through a spring (43), the other end of the locking round steel (45) is provided with a concave surface, and the concave surface is matched with the protruding arc-shaped surface (10) on the arc-shaped steel cap head (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123206158.9U CN216616577U (en) | 2021-12-20 | 2021-12-20 | Self-locking type steel bar sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123206158.9U CN216616577U (en) | 2021-12-20 | 2021-12-20 | Self-locking type steel bar sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN216616577U true CN216616577U (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123206158.9U Active CN216616577U (en) | 2021-12-20 | 2021-12-20 | Self-locking type steel bar sleeve |
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| Country | Link |
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| CN (1) | CN216616577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387541A (en) * | 2021-12-20 | 2022-11-25 | 甘肃建研建设工程有限公司 | Self-locking grouting sleeve with assembled structure and preparation method thereof |
-
2021
- 2021-12-20 CN CN202123206158.9U patent/CN216616577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387541A (en) * | 2021-12-20 | 2022-11-25 | 甘肃建研建设工程有限公司 | Self-locking grouting sleeve with assembled structure and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 730070 no.516, Beibinhe West Road, Anning District, Lanzhou City, Gansu Province Patentee after: GANSU CIB CONSTRUCTION LTD. Address before: 730050 No. 575, Xijin East Road, Qilihe District, Lanzhou, Gansu. Patentee before: GANSU CIB CONSTRUCTION LTD. |
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| CP02 | Change in the address of a patent holder |