CN202265941U - Connecting sleeve used for pressure grouting - Google Patents
Connecting sleeve used for pressure grouting Download PDFInfo
- Publication number
- CN202265941U CN202265941U CN 201120407529 CN201120407529U CN202265941U CN 202265941 U CN202265941 U CN 202265941U CN 201120407529 CN201120407529 CN 201120407529 CN 201120407529 U CN201120407529 U CN 201120407529U CN 202265941 U CN202265941 U CN 202265941U
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- Prior art keywords
- hole
- sleeve
- sleeve body
- connecting sleeve
- grouting
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- Expired - Lifetime
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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model relates to the technical field of building construction, and in particular to a connecting sleeve used for pressure grouting. The connecting sleeve comprises a tubular sleeve body with two open ends, and a grouting hole and an overflow hole are formed on the side wall of the sleeve body and communicated with the inner cavity of the sleeve body. The utility model is characterized in that internal threads are formed on the walls of the overflow hole and the grouting hole. The utility model has the advantages as follows: the connecting sleeve has a simple structure and is convenient to use, and the capacity of bearing pressure on the grouting hole of the connecting sleeve is greatly improved.
Description
Technical field
The utility model relates to technical field of building construction, is specifically related to a kind of branch sleeve that is used for pressure type slip casting.
Background technology
In the prior art that building reinforced concrete is built, two reinforcing bars are connected one mainly contain following several kinds of modes: the mutual welding of reinforcing bar, sleeve pipe press joining method, crooked binding method.The construction of above-mentioned several kinds of connected modes is comparatively complicated, and must before concreting, accomplish the reinforcing bar connection, is not suitable for the assembling construction of precast concrete.And in the construction of prefabricated reinforced concrete structure, adopt a kind of reinforcing steel bar connecting sleeve tube to connect usually.This connected mode principle is roughly following: see through the hollow type reinforcing steel bar connecting sleeve tube of casting, reinforcing bar penetrates sleeve inner from both ends open, need not overlap or fuse, and between reinforcing bar and sleeve, fills the structural mortar of high strength microdilatancy, promptly accomplishes the steel bar joining action.The mechanism of its connection mainly receives the Shu Zuoyong that encloses of sleeve with mortar; Add and itself have the microdilatancy characteristic; Positive acting power between enhancing and reinforcing bar, sleeve inboard by this, reinforcing bar promptly by the frictional force of this positive force and rough surface generation, transmits reinforcement stresses.Grout sleeve syndeton bonding strength is good, and easy to operate, in the prefabricated reinforced concrete structure, is used widely.
But in the above-mentioned sleeve connected mode, need from the grout hole of its sidewall, pour into the structural mortar of high strength microdilatancy, the slit that filled with mortar tube wall and reinforcing bar form.And in filling process, between the formed slit of tube wall and reinforcing bar, especially have certain proportion in the gap of two steel bar ends and hole occurs, cause the bonding strength of reinforcing bar to reduce.And when prefabricated building components was installed, whether the reinforced bar sleeve after grouting is accomplished did not have plant and instrument can nondestructive testing qualified, and not with the method for its dismounting.In case resident air and then hole occurs in the slip casting will cause building potential safety hazard to occur.Still do not have at present and a kind ofly can guarantee branch sleeve grouting qualified constructure scheme fully.
Summary of the invention
The purpose of the utility model is the weak point according to above-mentioned prior art; A kind of branch sleeve that is used for pressure type slip casting is proposed; This branch sleeve is provided with internal thread on grout hole and overfolw hole inwall; Cooperate to have externally threaded grout pipe,, improved the qualification rate of grouting through the mode of pressure type slip casting.
The purpose of the utility model is accomplished by following technical scheme:
A kind of branch sleeve that is used for pressure type slip casting; The tubular sleeve body that comprises a both ends open; Offer grout hole and overfolw hole with its internal communication on the said sleeve body sidewall, it is characterized in that: the hole wall of said overfolw hole and grout hole is provided with internal thread.
Be equipped with the floor of some convexities on the said sleeve body inwall, and the height of projection of the floor of nearly said overfolw hole is greater than the floor height of projection of nearly said grout hole.
The utility model has the advantages that: simple in structure, easy to use; Improved the ability of bearing pressure at branch sleeve grout hole place greatly.
Description of drawings
Fig. 1 is the utility model branch sleeve generalized section.
The specific embodiment
Through embodiment the utility model characteristic and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As shown in Figure 1, mark 1-8 is respectively among the figure: sleeve body 1, first port 2, second port 3, limited block 4, floor 5, grout hole 6, overfolw hole 7, internal thread 8.
Referring to accompanying drawing 1, the branch sleeve that is used for pressure type slip casting is its main body with the sleeve body 1 of hollow tubular, and these sleeve body 1 two ends have first port 2 and second port 3 respectively, is used for reinforcing bar insertion sleeve body 1.Lobed floor 5 on sleeve body 1 inwall is used for the reinforcing steel bar and the mortar that pours into and solidifies the anchored force between back and the sleeve body 1, improves bonding strength.Wherein floor 5 heights of projection of first port, 2 side inwalls are greater than the floor 5 of second port, 3 sides.Since when precast unit is made usually in mounting conditions such as factory place preferably; And the purpose of this kind setting is as precast reinforced insertion end with first port 2; Sleeve body 1 internal diameter of 5 constraint qualifications of first port, 2 side rib plates can just make precast reinforced insertion, and first port 2 is suitable as with embedded bar and is connected.And when the prefabricated units lifting with branch sleeve; Because operation and construction environment are complicated; When second port, 3 side inwall internal diameters much larger than with it the butt joint the assembling bar diameter time; Can reduce the difficulty of lifting construction, also can guarantee to assemble in the smooth insertion of reinforcing bar second port 3 even the assembling steel bar end on another member has than mistake.So second port 3 is the insertion end of assembling reinforcing bar.In the center of sleeve body 1 inner chamber, inwall convexes with two symmetrically arranged limited blocks 4, is used to limit the reinforcing bar position that any port inserts, and has avoided an end bar long and cause the not enough situation of other end reinforcing bar length.
For pouring into slurries in the inner chamber that is implemented in sleeve body 1, the side-walls of nearly first port 2 offers the grout hole 6 with its internal communication on the sleeve body 1, and grout hole 6 is by the outward extending pipe shape of sleeve body 1 sidewall; The side-walls of nearly second port 3 offers the overfolw hole 7 with its internal communication on the sleeve body 1, and overfolw hole 7 is by the outward extending pipe shape of sleeve body 1 sidewall equally; The internal diameter of grout hole 6 is greater than overfolw hole 7 internal diameters, and grout hole 6 and overfolw hole 7 inwalls are provided with internal thread 8.Internal thread on the grout hole 6 is used for and the grout pipe threaded engagement; And the internal thread of overfolw hole 7 can be used for equipment such as assembling pressure table, one way valve; Guaranteed the sealing of grouting thus, grout pipe is to sleeve body 1 internal pressure slip casting, through manometric pressure display; Set the qualified threshold value of grouting, can guarantee the qualification rate of branch sleeve grouting.
The performance of carrying out for above-mentioned cover reinforcing steel bar connecting sleeve tube is examined experiment entirely, all meets the I level joint performance class requirement of " reinforcing steel bar machinery connects the current techique rules " JGJ107-2010 3.0.4 bar.Joint tensile strength is not less than by the actual tensile strength of connecting reinforcement or 1.1 times of reinforcing bar tensile strength standard values, and has high property and tensile and compressive property repeatedly.
Claims (2)
1. branch sleeve that is used for pressure type slip casting; The tubular sleeve body that comprises a both ends open; Offer grout hole and overfolw hole with its internal communication on the said sleeve body sidewall, it is characterized in that: the hole wall of said overfolw hole and grout hole is provided with internal thread.
2. a kind of branch sleeve that is used for pressure type slip casting as claimed in claim 1; It is characterized in that: be equipped with the floor of some convexities on the said sleeve body inwall, and the height of projection of the floor of nearly said overfolw hole is greater than the floor height of projection of nearly said grout hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120407529 CN202265941U (en) | 2011-10-24 | 2011-10-24 | Connecting sleeve used for pressure grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120407529 CN202265941U (en) | 2011-10-24 | 2011-10-24 | Connecting sleeve used for pressure grouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265941U true CN202265941U (en) | 2012-06-06 |
Family
ID=46156739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120407529 Expired - Lifetime CN202265941U (en) | 2011-10-24 | 2011-10-24 | Connecting sleeve used for pressure grouting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202265941U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652712A (en) * | 2015-02-12 | 2015-05-27 | 同济大学 | Epoxy resin connecting sleeve |
| CN106988487A (en) * | 2016-01-20 | 2017-07-28 | 上海标仕建筑工程材料有限公司 | Half grouting formula steel bar connector |
| CN107130742A (en) * | 2017-05-08 | 2017-09-05 | 上海住总工程材料有限公司 | A kind of full grout sleeve of prefabricated assembled bridge |
| CN109235780A (en) * | 2018-10-22 | 2019-01-18 | 北京工业大学 | A kind of half grouting connection sleeve suitable for highly seismic region and its apply method |
-
2011
- 2011-10-24 CN CN 201120407529 patent/CN202265941U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652712A (en) * | 2015-02-12 | 2015-05-27 | 同济大学 | Epoxy resin connecting sleeve |
| CN104652712B (en) * | 2015-02-12 | 2017-01-18 | 同济大学 | epoxy resin connecting sleeve |
| CN106988487A (en) * | 2016-01-20 | 2017-07-28 | 上海标仕建筑工程材料有限公司 | Half grouting formula steel bar connector |
| CN107130742A (en) * | 2017-05-08 | 2017-09-05 | 上海住总工程材料有限公司 | A kind of full grout sleeve of prefabricated assembled bridge |
| CN109235780A (en) * | 2018-10-22 | 2019-01-18 | 北京工业大学 | A kind of half grouting connection sleeve suitable for highly seismic region and its apply method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI UBAN CONSTRUCTION GROUP MUNICIPAL ENGINEE Free format text: FORMER NAME: SHANGHAI NO.2 MUNICIPAL ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 200232 Xuhui District, Liuzhou Wu Road, Lane No. 13, No. 3, No. Patentee after: Shanghai urban construction Municipal Engineering (Group) Co., Ltd. Address before: 200232 Xuhui District, Liuzhou Wu Road, Lane No. 13, No. 3, No. Patentee before: Shanghai No.2 Municipal Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |
|
| CX01 | Expiry of patent term |