CN216713592U

CN216713592U - Grouting sleeve for vertical steel bar connection

Info

Publication number: CN216713592U
Application number: CN202123250431.8U
Authority: CN
Inventors: 张硕; 祝雯; 唐孟雄; 胡贺松
Original assignee: Guangzhou Construction Quality And Safety Testing Center Co ltd; Guangzhou Municipal Construction Group Co ltd; Guangzhou Academy Of Building Sciences Group Co ltd; Guangzhou Construction Co Ltd
Current assignee: Guangzhou Construction Quality And Safety Testing Center Co ltd; Guangzhou Municipal Construction Group Co ltd; Guangzhou Academy Of Building Sciences Group Co ltd; Guangzhou Construction Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-10
Anticipated expiration: 2031-12-21

Abstract

The utility model belongs to the technical field of constructional engineering, and provides a grouting sleeve for connecting vertical steel bars, which comprises a sleeve body, wherein a spiral inner cavity is formed in the sleeve body in a hollow manner; and the outer peripheral surface of the sleeve body is provided with a grouting opening, the grouting opening is communicated with the spiral inner cavity, and the grouting opening is tangent to the cavity wall of the spiral inner cavity. According to the utility model, the structure of the sleeve is improved, so that the current situation that grouting is not full easily is improved from the perspective of the structural design of the sleeve.

Description

Grouting sleeve for vertical steel bar connection

Technical Field

The utility model belongs to the technical field of constructional engineering, and particularly relates to a grouting sleeve for connecting vertical steel bars.

Background

Compared with the traditional building, the assembly type building has the advantages of environmental protection, controllable quality, high construction efficiency and the like, so that the assembly type building is rapidly developed in China in recent years. The reinforcement connection performance of the fabricated building concrete member is particularly important to the safety and reliability of the entire structure, and thus has been receiving much attention.

The main mode of the existing assembled building concrete member steel bar connection is grouting sleeve connection, the fullness degree of grouting materials in a sleeve becomes a key attention index in construction, whether the members can be effectively connected or not is determined, and the engineering quality is directly influenced. At present, the main mode for ensuring the fullness of grouting material in the sleeve is to continuously perform grouting at a grouting port of the sleeve until slurry flows out from a slurry outlet, namely the grouting is considered to be full, the fullness detection is assisted, and the grouting is timely supplemented when the grouting is not full. However, in the field construction process, due to the reasons of irregular grouting operation, unstable grouting level, mismatched grouting equipment and the like, the situation of insufficient grouting still occurs, although the detection means can find part of the problems and can timely remedy the problems, the detection generally does not cover all sleeves based on the consideration of cost and efficiency, and therefore the problem of the grouting quality of the sleeves should be paid sufficient attention.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a grouting sleeve for connecting vertical steel bars, which improves the structural design of the sleeve to improve the current situation that grouting is not easy to fill.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a grouting sleeve for connecting vertical steel bars comprises a sleeve body, wherein a spiral inner cavity is formed in the sleeve body in a hollow mode; and the outer peripheral surface of the sleeve body is provided with a grouting opening, the grouting opening is communicated with the spiral inner cavity, and the grouting opening is tangent to the cavity wall of the spiral inner cavity.

Preferably, a slurry outlet is further formed in the outer peripheral surface of the sleeve body, the slurry outlet is communicated with the spiral inner cavity, and the slurry outlet is arranged in a tangent mode with the wall of the spiral inner cavity.

Preferably, the grout injection port and the grout outlet are respectively provided at both ends of the outer circumferential surface of the sleeve body.

Preferably, the grouting port and the grout outlet are respectively located on two sides of the axial line of the sleeve body along the axial direction of the grouting port.

Preferably, the axis of the grouting port and the axis of the grout outlet are arranged in parallel.

Preferably, the spiral inner cavity is communicated with two ends of the sleeve body to form an upper insertion hole and a lower insertion hole for inserting the reinforcing steel bar.

Preferably, the sleeve body, the grouting opening and the grout outlet are of an integrated structure.

Preferably, the upper jack and the lower jack are internally provided with rubber plugs, and the middle part of each rubber plug is provided with a through hole for the steel bar to pass through.

Compared with the prior art, the utility model has the beneficial effects that:

in the scheme, the spiral inner cavity is skillfully arranged in the sleeve body, and the grouting port is arranged on the side wall of the spiral inner cavity in the tangential direction corresponding to the spiral inner cavity and communicated with the spiral inner cavity; when the grouting operation is carried out, the slurry enters the sleeve body from the grouting port, rotational flow can be effectively formed, so that the formation of turbulent flow in the sleeve during the grouting operation in the traditional technology is reduced, and the grouting quality in the sleeve body can be fuller. The whole grouting sleeve is simple in structure, easy to form a full grouting state, free of special grouting equipment and compatible with the existing grouting mode, and cost investment can be further conveniently controlled on the premise that the connection quality of the steel bars of the assembly type building concrete member is effectively guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is an external structural view of the present invention.

Wherein:

1-sleeve body, 11-spiral inner cavity, 12-grouting opening, 13-grout outlet, 14-upper jack and 15-lower jack.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

As shown in fig. 1-2, the grouting sleeve for connecting vertical steel bars provided in this embodiment mainly includes a cylindrical sleeve body 1, where the sleeve body 1 is hollow and forms a spiral inner cavity 11; the outer peripheral surface of the sleeve body 1 is provided with a grouting opening 12 and a grout outlet 13, the grouting opening 12 and the grout outlet 13 are communicated with the spiral inner cavity 11, and the grouting opening 12 and the grout outlet 13 are tangentially arranged with the cavity wall of the spiral inner cavity 11, so that grout can form a rotational flow in the spiral inner cavity 11 during grouting operation, turbulent flow in the traditional technology is avoided, and grouting fullness is facilitated.

As a preferable scheme, the grouting port 12 and the grout outlet 13 in this embodiment are respectively disposed at two ends of the outer circumferential surface of the sleeve body 1, and are disposed one above the other when in use, wherein the grouting port 12 is disposed at the lower part, and the grout outlet 13 is disposed at the upper part; if the slurry overflows from the slurry outlet 13, the grouting material is full of the spiral inner cavity 11.

Meanwhile, along the axial direction of the grouting port 12, the grouting port 12 and the grout outlet 13 are respectively positioned at two sides of the axis of the sleeve body 1. And as a preferable scheme, the axial line of the grouting opening 12 and the axial line of the grout outlet 13 are arranged in parallel with each other.

In addition, in this embodiment, the sleeve body 1, the grouting port 12 and the grout outlet 13 are of an integrated structure. The manufacturing material is preferably carbon steel with good processing performance, the inside of the seamless steel pipe can be cut corresponding to the forming process of the sleeve body 1, the nodular cast iron material can be adopted, and the injection molding and the like can be selected corresponding to the forming process of the sleeve body 1.

Preferably, the spiral inner cavity 11 is communicated with both ends of the sleeve body 1 to form an upper insertion hole 14 and a lower insertion hole 15 into which a reinforcing bar (not shown) is inserted, respectively. Wherein, be provided with the rubber buffer (not shown in the figure) in going up jack 14, lower jack 15, the middle part of rubber buffer is provided with the via hole that supplies the reinforcing bar to pass. So that when upper portion reinforcing bar and lower part reinforcing bar were inserted, can pass through the rubber buffer carries out effectual sealed separation to avoid the excessive of thick liquids and ensure inside slip casting state.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The grouting sleeve for connecting the vertical steel bars is characterized by comprising a sleeve body, wherein a spiral inner cavity is formed in the sleeve body in a hollow mode; and the outer peripheral surface of the sleeve body is provided with a grouting opening, the grouting opening is communicated with the spiral inner cavity, and the grouting opening is tangent to the cavity wall of the spiral inner cavity.

2. The grouting sleeve for connecting the vertical steel bars as claimed in claim 1, wherein a grout outlet is further formed in the outer circumferential surface of the sleeve body, the grout outlet is communicated with the spiral inner cavity, and the grout outlet is tangent to the wall of the spiral inner cavity.

3. The grouting sleeve for connecting vertical reinforcing steel bars as claimed in claim 2, wherein the grouting port and the grout outlet are respectively provided at both ends of the outer circumferential surface of the sleeve body.

4. A grouting sleeve for connecting vertical steel bars according to claim 2 or 3, characterized in that the grouting port and the grout outlet are respectively located at two sides of the axial line of the sleeve body along the axial direction of the grouting port.

5. The grouting sleeve for connecting vertical steel bars according to claim 4, wherein the axis of the grouting port and the axis of the grout outlet are arranged in parallel.

6. The grouting sleeve for connecting vertical reinforcing steel bars according to any one of claims 2 to 3, wherein the spiral inner cavity is communicated with both ends of the sleeve body to form an upper insertion hole and a lower insertion hole for inserting reinforcing steel bars, respectively.

7. The grouting sleeve for connecting vertical steel bars according to claim 6, wherein the sleeve body, the grouting port and the grout outlet are of an integrated structure.

8. The grouting sleeve for connecting vertical steel bars according to claim 6, characterized in that rubber plugs are arranged in the upper jack and the lower jack, and a through hole for the steel bars to pass through is formed in the middle of each rubber plug.