CN212743152U - Semi-grouting sleeve for fabricated building - Google Patents
Semi-grouting sleeve for fabricated building Download PDFInfo
- Publication number
- CN212743152U CN212743152U CN202021172817.4U CN202021172817U CN212743152U CN 212743152 U CN212743152 U CN 212743152U CN 202021172817 U CN202021172817 U CN 202021172817U CN 212743152 U CN212743152 U CN 212743152U
- Authority
- CN
- China
- Prior art keywords
- component
- steel bar
- grouting
- limiting piece
- deformed steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 230000000670 limiting effect Effects 0.000 claims abstract description 34
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims abstract description 17
- 239000011440 grout Substances 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses an assembly type is half grout sleeve for building for solve current half grout sleeve convenient to use, especially the problem that the screw-thread steel drops easily. The grouting semi-grouting sleeve is composed of a limiting piece, a component I and a component II, wherein the component I and the component II are in threaded connection and combined into a semi-grouting sleeve with a grouting cavity inside, and the limiting piece is clamped and fixed at an interface between the component I and the component II; the central position of the limiting piece is provided with a through hole and a narrow slit which takes the through hole as the center and radially exists around, and when the deformed steel bar passes through the limiting piece, a plurality of one-way limiting clamps are formed on the surface of the deformed steel bar around the through hole of the limiting piece. The use of the limiting piece enables the deformed steel bar to only have one-way insertion action in the insertion direction, has a limiting effect and ensures the connection and the positioning of the deformed steel bar.
Description
Technical Field
The utility model relates to a half grout sleeve belongs to spare part technical field for the assembly type structure.
Background
In order to meet the requirement of the anti-seismic performance of the fabricated concrete structure, the stressed deformed steel bar connection method comprises the step of inserting two deformed steel bar pairs to be connected into a grouting sleeve, wherein the grouting sleeve is divided into a full grouting sleeve and a half grouting sleeve according to a forming mode.
The semi-grouting sleeve is characterized in that one end of the semi-grouting sleeve is directly inserted into the sleeve by the connecting deformed steel bar and connected in a grouting mode, the other end of the semi-grouting sleeve is turned at the bottle opening part to form an internal thread of the connecting deformed steel bar, and the semi-grouting sleeve is screwed into the bottle opening section of the grouting sleeve after the straight thread is rolled by the end part of the connecting deformed steel bar to form mechanical connection.
In the existing construction technology of the semi-grouting sleeve, when the connected deformed steel bars are inserted into the sleeve, due to the fact that the connecting deformed steel bars are not limited, the prefabricated parts possibly shake relative to the main body in the grouting process to cause connection and installation dislocation, long-time maintenance and hardening are needed particularly in the grouting connection process, uncertainty is increased, once the prefabricated parts slide relative to the main body, connection failure is caused, and loss is huge.
Disclosure of Invention
In order to overcome the not enough of existing among the half grout sleeve technique of current screw-thread steel thick liquid anchor butt joint, the utility model provides a half grout sleeve uses ordinary steel pipe as the sleeve for solve half grout muffjoint in-process, can not the auto-lock between inserted screw-thread steel and the sleeve, the unqualified problem of connection that the easy dislocation caused.
The semi-grouting sleeve for the fabricated building is composed of a limiting piece, a component I and a component II and is characterized in that the component I and the component II are in threaded connection and combined into a semi-grouting sleeve with a grouting cavity inside, and the limiting piece is clamped and fixed at an interface between the component I and the component II;
the component I is provided with a threaded hole connected with the deformed steel bar, a grouting opening and a grout overflow opening;
and a round hole matched with the other deformed steel bar is formed in the component II, a through hole and a narrow slit which takes the through hole as the center and radially exists around are formed in the central position of the limiting piece, and when the deformed steel bar penetrates through the limiting piece, a plurality of one-way limiting clamps are formed on the surface of the deformed steel bar around the through hole of the limiting piece.
The narrow slit is a punching notch taking a through hole as a starting point.
The diameter of the through hole is one third to two thirds of the diameter of the deformed steel bar.
The limiting piece is a hard steel piece with the thickness of 1 mm.
The component I and the component II are made of iron castings.
A groove is arranged inside the component I.
The utility model discloses a connected mode has following advantage:
(1) the semi-grouting sleeve is composed of two components, can be processed and manufactured respectively, simplifies the process, and is not easy to influence the sleeve performance due to complex processing procedures.
(2) The use of the limiting piece enables the deformed steel bar to only have one-way insertion action in the insertion direction, has a limiting effect and ensures the connection and the positioning of the deformed steel bar.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a usage status diagram of the present invention.
Fig. 4 is a perspective view of the spacing piece.
Fig. 5 is a front view of the spacing piece.
Fig. 6 is a matching view of the limiting sheet and the deformed steel bar.
In the figure:
01 deformed steel bar I, 02 deformed steel bar II,
10 a component I, 11 a threaded hole, 12 a grouting opening, 13 a grout overflow opening,
20, a component I, 21 is in threaded connection, 22 is a round hole,
30 limiting sheets, 31 through holes, 32 narrow slits and 33 one-way limiting clamps.
Detailed Description
As shown in fig. 1 to 2, in the field of prefabricated construction, a screw thread having a diameter of 12mm to 40mm is generally used for connecting a screw steel, and the screw thread exists as a straight rib of a screw steel cage, and in the present embodiment, a connection of a screw steel having a diameter of 20mm is described in detail as an example. In this embodiment, two screw-thread steels to be connected are marked as screw-thread steel I01 and screw-thread steel II 02 respectively according to the difference of position, wherein screw-thread steel I is located below, and screw-thread steel II is located above, and two screw-thread steels reside in different prefabricated components respectively.
The semi-grouting sleeve in the embodiment is composed of a member I10 and a member II 20, wherein one end of the member I is a threaded hole 11 and is used for being connected with a deformed steel I01, the other end of the member I is an open end and is used for being matched with the member II, and specifically, a threaded connection 21 is formed between the member II 10 and the member I20. A grouting opening 12 and a grout overflow opening 13 are arranged on one side of the component I10 and are arranged on the side face in parallel.
A limiting sheet 30 is pressed at the matching part of the component I and the component II, the limiting sheet is a hard steel sheet with the thickness of 1 mm, referring to fig. 4 and 5, the limiting sheet is a round steel sheet, the edge of the limiting sheet is pressed by the component I and the component II, and the fixing of the limiting sheet is realized. The central position of the limiting sheet 30 is provided with a through hole 31 and a plurality of narrow slits 32 which take the through hole as a center and radially exist towards the periphery, the narrow slits are stamping notches taking the through hole as an initial point, and the narrow slits 32 are uniformly arranged around the through hole. The diameter of the through hole 31 is about half of the diameter of the deformed steel bar, specifically, the diameter of the through hole 31 is between one third and two thirds of the diameter of the straight rib of the deformed steel bar, so that when the deformed steel bar ii passes through the through hole 31, the position of the through hole of the position-limiting piece has a tendency and action of deforming towards the inserted direction, and due to the existence of the narrow slit, the position of the through hole of the position-limiting piece 30 forms a plurality of one-way position-limiting clamps 33 on the surface of the deformed steel bar, so that the deformed steel bar does not have reverse drawing capability, refer to fig. 6.
Specifically, the component II is in threaded connection with the component I, and meanwhile the component II 20 is provided with a round hole 22 in plug fit with the deformed steel II, and the round hole can be conveniently penetrated by the deformed steel II.
The above-mentioned members I and II are preferably cast iron members.
The improved measures are advanced, the threaded groove continuously arranged from the grouting opening to the grout overflow opening can be arranged in the component I, and the grouting effect is improved.
Referring to fig. 3, the fabricated construction method, first: the prefabricated component is installed at the corresponding position, then the deformed steel bar II penetrates into the component II from top to bottom, the deformed steel bar II reaches the specified depth, due to the effect of the limiting piece, the deformed steel bar II has one-way insertion action, the direction is limited when being extracted, and finally, the high-strength shrinkage-free cement-based grouting material is grouted from the pressure of the grouting opening from the low point, so that the grouting material is discharged from the grout overflow opening at the high point, the grout overflow opening is blocked, the grouting material is maintained to the specified strength, and a joint for the butt joint of the grout anchor deformed steel bar is formed.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (6)
1. The semi-grouting sleeve for the fabricated building is composed of a limiting piece, a component I and a component II and is characterized in that the component I and the component II are in threaded connection and combined into a semi-grouting sleeve with a grouting cavity inside, and the limiting piece is clamped and fixed at an interface between the component I and the component II;
the component I is provided with a threaded hole connected with the deformed steel bar, a grouting opening and a grout overflow opening;
and a round hole matched with the other deformed steel bar is formed in the component II, a through hole and a narrow slit which takes the through hole as the center and radially exists around are formed in the central position of the limiting piece, and when the deformed steel bar penetrates through the limiting piece, a plurality of one-way limiting clamps are formed on the surface of the deformed steel bar around the through hole of the limiting piece.
2. The fabricated semi-grouting sleeve for construction according to claim 1, wherein the narrow slit is a punched notch starting from a perforation.
3. The fabricated semi-grouted building sleeve of claim 1, wherein the perforations have a diameter of one-third to two-thirds of a diameter of the deformed steel bar.
4. The fabricated semi-grouting sleeve for a building as claimed in claim 1, wherein the limiting piece is a hard steel piece with a thickness of 1 mm.
5. The fabricated semi-grouting sleeve for a building as claimed in claim 1, wherein the members i and ii are iron castings.
6. The prefabricated construction half-grouting sleeve as claimed in claim 1, wherein a groove is formed in the member i.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021172817.4U CN212743152U (en) | 2020-06-22 | 2020-06-22 | Semi-grouting sleeve for fabricated building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021172817.4U CN212743152U (en) | 2020-06-22 | 2020-06-22 | Semi-grouting sleeve for fabricated building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212743152U true CN212743152U (en) | 2021-03-19 |
Family
ID=75010237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021172817.4U Expired - Fee Related CN212743152U (en) | 2020-06-22 | 2020-06-22 | Semi-grouting sleeve for fabricated building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212743152U (en) |
-
2020
- 2020-06-22 CN CN202021172817.4U patent/CN212743152U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20210319 |