CN211114438U

CN211114438U - Grouting sleeve of anti-deformation dislocation punching press

Info

Publication number: CN211114438U
Application number: CN201921453249.2U
Authority: CN
Inventors: 原睿; 张庆雷; 刘晓; 马冰洋; 魏金龙; 潘产金
Original assignee: Shanghai Baoye Group Corp Ltd; Shanghai Baoye Engineering Technology Co Ltd
Current assignee: Shanghai Baoye Group Corp Ltd; Shanghai Baoye Engineering Technology Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-07-28
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a grout sleeve of resistance to deformation dislocation punching press, this grout sleeve include grout sleeve body, and grout sleeve body both ends section of thick bamboo wall is equipped with grout mouth and grout outlet respectively, and grout sleeve body outer wall is equipped with the annular groove that a plurality of non-link up along the circumferencial direction interval, and the annular groove cross-section is semi-circular and forms annular groove's breach position between the annular groove both ends. The grouting sleeve overcomes the defects of an inner rib and a rolling groove of the traditional grouting sleeve, effectively reduces the weak link of stress concentration generated by grouting materials, and ensures the bonding force of a steel bar and the grouting sleeve and the connection reliability of assembled building components.

Description

Grouting sleeve of anti-deformation dislocation punching press

Technical Field

The utility model relates to a grout sleeve of resistance to deformation dislocation punching press.

Background

Grout sleeve is used for the steel bar connection of assembled building component, the grout sleeve of nodular cast iron processing that generally uses at present, its manufacturing cost is high, the popularization and the application of assembled concrete structure building have been restricted to a certain extent, nodular cast iron grout sleeve inner wall has several interior ribs, there is the sudden change in sleeve inner cross-section along the axis direction, in the actual engineering application, the position department grout material at interior rib produces very big stress concentration easily, form weak link, cause the grout material of in-service use interior rib department to be crowded garrulous easily. In addition, a grouting sleeve with a groove formed by rolling is also available, and a rolling groove is formed in the steel pipe by rolling, so that the groove of the grouting sleeve with the rolling groove is narrow and has a function similar to that of an inner rib, and grouting materials at the position of the rolling groove are easy to generate large stress concentration. Under the action of repeated load, concrete is easily crushed due to stress concentration at the inner rib of the nodular cast iron and the rolling groove of the rolling groove grouting sleeve, so that the bonding force between a steel bar and the sleeve is reduced, the durability of the whole sleeve structure is reduced, and the connection reliability of the assembled building components is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem that a grout sleeve of anti-deformation dislocation punching press is provided, the defect of rib and rolling groove in traditional grout sleeve is overcome to this grout sleeve, effectively reduces grout material and produces stress concentration's weak link, ensures the reliability of reinforcing bar and grout telescopic cohesive force and assembled building component connection.

For solving the technical problem, the utility model discloses grout sleeve of resistance to deformation dislocation punching press includes the grout sleeve body, grout sleeve body both ends section of thick bamboo wall is equipped with grout mouthful and grout outlet respectively, grout sleeve body outer wall is equipped with the annular groove that a plurality of non-link up along the circumferencial direction interval, the annular groove cross-section is semi-circular and forms annular groove's breach position between the annular groove both ends.

Furthermore, the gap parts of the plurality of annular grooves are arranged in a staggered manner.

Furthermore, the annular grooves are arranged at equal intervals, and the gap parts of the adjacent annular grooves are staggered by an angle of 180 degrees.

Further, a plurality of annular grooves pass through stamping forming, a plurality of annular grooves are in grout sleeve body inner wall forms a plurality of inner ribs.

Because the utility model discloses the grout sleeve of resistance to deformation dislocation punching press has adopted above-mentioned technical scheme, and this grout sleeve includes the grout sleeve body promptly, and grout sleeve body both ends section of thick bamboo wall is equipped with grout mouth and grout outlet respectively, and grout sleeve body outer wall is equipped with the annular groove that a plurality of non-link up along the circumferencial direction interval, and the annular groove cross-section is semi-circular and form annular groove's breach position between the annular groove both ends. The grouting sleeve overcomes the defects of an inner rib and a rolling groove of the traditional grouting sleeve, effectively reduces the weak link of stress concentration generated by grouting materials, and ensures the bonding force of a steel bar and the grouting sleeve and the connection reliability of assembled building components.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

fig. 1 is a schematic structural view of the grouting sleeve with deformation and dislocation resistant stamping of the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic view of the processing of the annular groove in the grout sleeve.

Detailed Description

Embodiment is shown in fig. 1 and 2, the utility model discloses grout sleeve of anti-deformation dislocation punching press includes grout sleeve body 1, grout sleeve body 1 both ends section of thick bamboo wall is equipped with grout mouth 11 and grout outlet 12 respectively, grout sleeve body 1 outer wall is equipped with a plurality of non-through's annular groove 13 along the circumferencial direction interval, annular groove 13 cross-section is semi-circular and forms annular groove 13's breach position 14 between the annular groove 13 both ends.

Preferably, the gap portions 14 of the plurality of annular grooves 13 are arranged in a staggered manner.

Preferably, the plurality of annular grooves 13 are arranged at equal intervals, and the gap portions 14 of adjacent annular grooves 13 are staggered by an angle of 180 degrees.

Preferably, the plurality of annular grooves 13 are formed by stamping, and the plurality of annular grooves 13 are formed on the inner wall of the grouting sleeve body 1 to form a plurality of inner ribs. As shown in fig. 3, the grouting sleeve body 1 is formed by cold pressing a high-strength seamless steel tube, the grouting sleeve body 1 is arranged between an upper stamping die 2 and a lower stamping die 3, semicircular stamping tools 21 and 31 are arranged on the surfaces of the upper stamping die 2 and the lower stamping die 3 at intervals and are placed at different angles, and a plurality of annular grooves 13 on the outer wall of the grouting sleeve body 1 are formed by stamping; the processing technology is simple, the efficiency is high, and the production cost of the grouting sleeve can be greatly reduced.

A plurality of annular grooves of this grout sleeve body outer wall are equivalent to traditional grout sleeve's inner rib and rolling groove, and it plays the effect the same. This grout sleeve belongs to the punching press sleeve, and is more similar with the roll-in sleeve, adds man-hour through outer wall toward the sleeve on the punching press, makes the punching press position on the sleeve inner wall to the inside arch of sleeve to reach the effect of inner rib, and the outer wall does not have the part of punching press, owing to can not be to the inside arch of sleeve, so become the shear force groove naturally. The traditional rolling sleeve is also rolled on the outer wall of the sleeve, the rolling position protrudes towards the inside of the sleeve to form an inner rib, but the inner rib is a closed circular ring, so that the shear grooves are relatively independent, and the inner rib of the grouting sleeve is not a closed circular ring and can be communicated with the shear grooves, so that the grouting sleeve is a whole. Therefore, the annular groove of the grouting sleeve is of a non-through structure, a gap part is formed between two ends of the annular groove, and due to the existence of the gap part, stress concentration of grouting materials cannot be formed at the positions of the annular grooves, so that the concrete is prevented from being crushed by extrusion. Meanwhile, the angles of the gap parts of the plurality of annular grooves are staggered, so that the stress of the grouting material in the whole section of the grouting sleeve forms a whole, the stress of the grouting material is more uniform under the condition of repeated load, and the grouting material is not easy to damage and pull off; and because the traditional grouting sleeve has the rolling grooves or the inner ribs, the stress conditions of the grouting materials between the rolling grooves and the inner ribs are mutually independent, and the phenomena of grouting material damage and pull-off are easily caused.

Claims

1. The utility model provides a grout sleeve of anti-deformation dislocation punching press, includes the grout sleeve body, grout sleeve body both ends section of thick bamboo wall is equipped with grout mouth and grout outlet, its characterized in that respectively: the outer wall of the grouting sleeve body is provided with a plurality of non-through annular grooves at intervals along the circumferential direction, the cross section of each annular groove is semicircular, and a gap part of each annular groove is formed between two ends of each annular groove.

2. The deformation dislocation punching resistant grout sleeve of claim 1, wherein: the gap parts of the plurality of annular grooves are arranged in a staggered manner.

3. The deformation dislocation punching resistant grouting sleeve of claim 1 or 2, characterized in that: the annular grooves are arranged at equal intervals, and the gap parts of the adjacent annular grooves are staggered by 180 degrees.

4. The deformation dislocation punching resistant grout sleeve of claim 3, wherein: the annular grooves are formed through punch forming, and the inner wall of the grouting sleeve body is provided with a plurality of inner ribs.