CN216230065U

CN216230065U - Grouting sleeve capable of realizing steel bar centering

Info

Publication number: CN216230065U
Application number: CN202122683737.6U
Authority: CN
Inventors: 王启明; 曾代忠
Original assignee: Shanxi Changhong Electric Equipment Co ltd
Current assignee: Shanxi Changhong Electric Equipment Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-08
Anticipated expiration: 2031-11-04

Abstract

The application relates to the technical field of prefabricated components of an assembly type building, and provides a grouting sleeve capable of realizing steel bar centering, which comprises a cylinder body, wherein steel bar inserting openings are respectively formed in two ends of the cylinder body, and a grouting hole and a grout discharging hole are formed in the side wall of the cylinder body; the depth positioning plate is arranged in the middle of the barrel body and is arranged in a radially inward protruding mode; the elastic center positioning piece is arranged between the steel bar insertion opening and the depth positioning plate; the elastic center positioning piece comprises a first elastic frame, a second elastic frame and a connecting edge for connecting the first elastic frame and the second elastic frame; the first elastic frame and the second elastic frame are both provided with at least three fan-shaped frames in a radial inward protruding mode, the top, close to the axis of the cylinder body, of each fan-shaped frame on the first elastic frame or the second elastic frame is located on the circumference of the same circle to form a centering hole, and the reinforcing steel bars are inserted into the rubber sealing plugs at the reinforcing steel bar insertion openings in a sealing mode and penetrate through the two centering holes to be arranged at intervals with the depth positioning plate. The grouting sleeve has the advantages of rapid insertion of the steel bars, high grouting efficiency, good grouting quality and good force transmission performance.

Description

Grouting sleeve capable of realizing steel bar centering

Technical Field

The application belongs to the technical field of prefabricated parts of assembly type structures, more specifically say, relate to a grout sleeve that can realize reinforcing bar centering.

Background

At present, the development of "building industrialization and housing industrialization" is ongoing. In recent years, research work on prefabricated mixed concrete structures is carried out by a plurality of scholars in China, and the application of the fabricated structure in China is getting rid of underestimation and is in an increasing trend. The reliable connection of the main stress ribs of the prefabricated part is the key for ensuring that the prefabricated concrete structure has good shock resistance.

The sleeve grouting connection technology is used as a main connection mode of longitudinal round thread steel bars in prefabricated concrete structural members, has high tensile strength, compressive strength and connection reliability, and is widely applied. The sleeve grouting connection technology is characterized in that a high-strength circular sleeve with concave-convex parts inside is used for inserting the threaded steel bars from two end parts, then high-strength grouting materials are injected, and after the grouting materials are solidified and solidified, the high-strength grouting materials and the threaded steel bars form bonding anchoring to realize the firm butt joint of the steel bars and combine the steel bars into a whole.

The plumpness of the grout material of prefabricated concrete structure sleeve grout connection is one of the difficult problem that awaits a diligent solution in the site operation always, and the plumpness of grout material is relevant with the position of inserting the reinforcing bar again, and the reinforcing bar position is off center or is shifted or crooked, can make grout material inhomogeneous even grout the unsatisfied condition often take place.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a grout sleeve that can realize reinforcing bar centering to there is the off-center or moves the position or crooked and lead to the not good technical problem of grout quality in the reinforcing bar position among the solution prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a grout sleeve capable of realizing reinforcement centering, including:

the device comprises a barrel, a plurality of reinforcing steel bar inserting holes, a plurality of rubber sealing plugs, a plurality of grouting holes and a plurality of grout discharging holes, wherein the reinforcing steel bar inserting holes are formed in two ends of the barrel respectively;

the depth positioning plate is arranged in the middle of the barrel body and is arranged in a radially inward protruding mode; and the number of the first and second groups,

the elastic center positioning piece is arranged between the steel bar inserting opening and the depth positioning plate; the elastic center positioning piece comprises a first elastic frame, a second elastic frame and a connecting edge for connecting the first elastic frame and the second elastic frame; the first elastic frame and the second elastic frame are both provided with at least three fan-shaped frames which are inwards projected in the radial direction, the tops of the fan-shaped frames on the first elastic frame or the second elastic frame, which are close to the axis of the cylinder body, are positioned on the circumference of the same circle to form a centering hole, and the reinforcing steel bar is hermetically inserted into the rubber sealing plug at the reinforcing steel bar insertion opening, penetrates through the two centering holes and then is arranged at intervals with the depth positioning plate.

In one embodiment, each of the fan-shaped frames is obliquely arranged to form a guide circular truncated cone hole, and the centering hole is a smaller end of the guide circular truncated cone hole and is far away from the reinforcing steel bar insertion opening.

In one embodiment, a first collar and a second collar are provided in the barrel and project radially inwardly, and the resilient centering element is fitted between the first collar and the second collar.

In one embodiment, there are at least two and an even number of the elastic centering elements.

In one embodiment, a central grout passing hole is formed in the depth positioning plate, and the diameter of the central grout passing hole is smaller than the diameter of the reinforcing steel bar.

In one embodiment, the depth referencing plate comprises at least two segments spaced apart.

In one embodiment, a plurality of convex rings are arranged in the cylinder at intervals, and a shear groove is formed between every two adjacent convex rings.

In one embodiment, the resilient centering element is a wire crimp.

In one embodiment, the connecting edges are arranged in two and spaced positions, the first elastic frame and the second elastic frame are both in a C-shaped structure, and the connecting plate is arranged at an opening of the C-shaped structure.

The application provides a can realize steel bar centering's grout sleeve's beneficial effect lies in: by arranging the elastic center positioning piece in the cylinder, double-layer positioning of the reinforcing steel bar can be realized by utilizing two centering holes formed on the first elastic frame and the second elastic frame at intervals, the reinforcing steel bar is ensured to be positioned at the center position after being inserted, the problems of deviation, displacement, inclination and the like of the reinforcing steel bar are avoided, and the grouting quality is ensured; first elasticity frame and second elasticity frame possess certain elasticity simultaneously for the aperture in centering hole has certain expansibility, consequently can be applicable to the reinforcing bar of different diameters and carry out the centering, thereby has the wide and grout of high quality advantage of range of application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a grout sleeve according to an embodiment of the present disclosure;

fig. 2 is a schematic side view of a grouting sleeve according to an embodiment of the present disclosure;

fig. 3 is a schematic perspective view of an elastic centering element in a grout sleeve according to an embodiment of the present disclosure.

Wherein, in the figures, the respective reference numerals:

1. a barrel; 11. inserting a reinforcing steel bar into the opening; 12. grouting holes; 13. a slurry discharge hole; 14. a first convex ring; 15. a second convex ring; 16. a shear groove; 2. a depth positioning plate; 21. a central slurry passing hole; 22. a sector block; 3. an elastic center locator; 31. a first elastic frame; 32. a second elastic frame; 33. a connecting edge; 34. a fan-shaped frame; 35. and (4) centering the hole.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, a grouting sleeve capable of centering reinforcing steel bars according to an embodiment of the present invention will be described. This can realize grout sleeve of reinforcing bar centering includes: barrel 1, degree of depth locating plate 2 and elasticity center locating piece 3. Wherein, barrel 1 is hollow structure, and the both ends of barrel 1 are equipped with reinforcing bar inserted hole 11 respectively, can supply two reinforcing bars to insert from a reinforcing bar inserted hole 11 respectively, and the reinforcing bar is sealed with sealing tool again after inserting, prevents that grout from flowing out from reinforcing bar inserted hole 11, and sealing tool is the rubber sealing plug, and the rubber sealing plug sets up in reinforcing bar inserted hole 11 department, and the reinforcing bar is through sealed the inserting to barrel 1 in of rubber sealing plug department. Be equipped with grout hole 12 on the one end periphery wall of barrel 1, be equipped with row's grout hole 13 on the other end periphery wall, grout hole 12 and row's grout hole 13 all with the inside intercommunication of barrel 1 to realize grout work.

The middle part and the radial inward convex setting that barrel 1 was located to degree of depth locating plate 2, and degree of depth locating plate 2's effect separates two reinforcing bars, prevents that the depth of insertion of one of them reinforcing bar is too much and causes the depth of insertion of another reinforcing bar not enough.

Wherein, the elastic center positioning piece 3 is arranged between the steel bar inserting opening 11 and the depth positioning plate 2; specifically, the elastic centering piece 3 includes a first elastic frame 31, a second elastic frame 32, and a connecting edge 33 connecting the first elastic frame 31 and the second elastic frame 32; at least three fan-shaped frames 34 are arranged on the first elastic frame 31 and the second elastic frame 32 in a radially inward protruding mode, the top, close to the axis of the barrel body 1, of each fan-shaped frame 34 on the first elastic frame 31 or the second elastic frame 32 is located on the circumference of the same circle to form a centering hole 35, namely the top of each fan-shaped frame 34 is located on the circumference of the centering hole 35, and the centering holes 35 are positioning holes for inserting steel bars; the reinforcing steel bar is inserted in a sealing mode through the rubber sealing plug at the position of the reinforcing steel bar insertion opening 11 and penetrates through the two centering holes 35 to be arranged at intervals with the depth positioning plate 2, so that the center positioning of the reinforcing steel bar is achieved, the two centering holes 35 are arranged at intervals, the principle that two points determine a straight line is utilized, the coaxial arrangement of the reinforcing steel bar and the cylinder body 1 is guaranteed, the grouting quality is guaranteed, and meanwhile, the reinforcing steel bar and the depth positioning plate 2 are arranged at intervals, so that grouting materials can be guaranteed to flow smoothly.

In the embodiment, the elastic center positioning piece 3 is arranged in the cylinder body 1, and the two centering holes 35 which are formed on the first elastic frame 31 and the second elastic frame 32 at intervals are utilized to realize double-layer positioning of the reinforcing steel bars, so that the reinforcing steel bars are ensured to be positioned at the center position after being inserted, the problems of deviation, displacement, inclination and the like of the reinforcing steel bars are avoided, and the grouting quality is ensured; first elasticity frame 31 and second elasticity frame 32 possess certain elasticity simultaneously for the aperture of centering hole 35 has certain expansibility, consequently can be applicable to the reinforcing bar of different diameters and carry out the centering, and first elasticity frame 31 and second elasticity frame 32's structure area occupied is little moreover, thereby can not influence the flow velocity of thick liquids in barrel 1, guaranteed grouting efficiency, consequently, the grout sleeve of this embodiment has the range of application extensively, the efficient and good advantage of grout of high quality of grout.

As shown in fig. 1 to 3, in the present embodiment, each of the fan-shaped frames 34 is obliquely disposed to form a guide circular truncated cone hole (not shown in the drawings), and the centering hole 35 is a smaller end of the guide circular truncated cone hole and is far from the rebar insertion opening 11; the fan-shaped frame 34 inclines to be arranged to have a guiding effect, and the fan-shaped frame 34 is prevented from blocking the reinforcing steel bars, so that the reinforcing steel bars can be rapidly inserted, and meanwhile, when the reinforcing steel bars with different diameters are inserted, the reinforcing steel bars can prop open the fan-shaped frames 34, and the reinforcing steel bars can be guaranteed to be positioned in the central position.

In this embodiment, a first protruding ring 14 and a second protruding ring 15 protruding inward in the radial direction are arranged in the cylinder 1, the elastic center positioning element 3 is assembled between the first protruding ring 14 and the second protruding ring 15, and the outer diameters of the first elastic frame 31 and the second elastic frame 32 are larger than the inner diameters of the first protruding ring 14 and the second protruding ring 15, so that the elastic center positioning element 3 can be clamped after being assembled between the first protruding ring 14 and the second protruding ring 15, thereby ensuring the installation firmness of the elastic center positioning element 3.

In this embodiment, the number of the elastic center positioning pieces 3 is at least two and is an even number, and one reinforcing steel bar is positioned by one elastic center positioning piece 3, but it is also possible to position one reinforcing steel bar by two or three elastic center positioning pieces 3, which can be specifically determined according to the length of the cylinder 1.

In this embodiment, the depth positioning plate 2 is provided with a central slurry passing hole 21, and the aperture of the central slurry passing hole 21 is smaller than the diameter of the steel bar, so that the central slurry passing hole 21 can play a role in separating and passing slurry. A plurality of slurry passing holes can be further formed in the depth positioning plate 2 and used for increasing slurry passing efficiency. Specifically, in the present embodiment, the depth positioning plate 2 includes at least two segments 22, preferably three segments, which are spaced apart from each other, and the top portions of the three segments 22 define a central slurry passing hole 21 therebetween, and the area between the two segments 22 can be passed through by slurry, thereby improving the slurry passing efficiency.

In this embodiment, a plurality of protruding rings are arranged in the cylinder 1 at intervals, a shear groove 16 is formed between two adjacent protruding rings, and the first protruding ring 14 and the second protruding ring 15 are only two of the plurality of protruding rings. The function of the bulge loop is to increase the structural strength of the cylinder 1. In practice, the resilient centring elements 3 are likewise arranged in the shear grooves 16.

In this embodiment, the elastic center positioning element 3 is a steel wire bending manufacturing element, so that the elastic center positioning element 3 is ensured to have elasticity, the positioning and damping effects can be achieved, and meanwhile, the large space is not occupied, and the slurry flowing is facilitated. Specifically, in this embodiment, two connecting edges 33 are arranged at intervals, the first elastic frame 31 and the second elastic frame 32 are both in a C-shaped structure, and the connecting edges 33 are arranged at the opening of the C-shaped structure, so that the elastic center positioning element 3 can be manufactured by bending a steel wire, such as bending by a bending machine or winding on a die; when exerting the extrusion force that relatively draws close to two connection limits 33 simultaneously, can make first elasticity frame 31 and second elasticity frame 32 diminish to can install between first bulge loop 14 and second bulge loop 15 from first bulge loop 14 department, when losing the extrusion force, first elasticity frame 31 and second elasticity frame 32 can automatic resume initial shape, thereby assemble in barrel 1, have simple to operate's advantage. Of course, there may be several connecting edges 33. In other embodiments, the resilient centering element 3 may be molded.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a grout sleeve that can realize reinforcing bar centering which characterized in that includes:

the mortar filling device comprises a barrel (1), wherein reinforcing steel bar inserting holes (11) are respectively formed in two ends of the barrel (1), a rubber sealing plug is arranged at each reinforcing steel bar inserting hole (11), a grouting hole (12) is formed in the outer peripheral wall of one end of the barrel (1), and a mortar discharging hole (13) is formed in the outer peripheral wall of the other end of the barrel;

the depth positioning plate (2) is arranged in the middle of the barrel (1) and is arranged in a radially inward protruding mode; and the number of the first and second groups,

the elastic center positioning piece (3) is arranged between the steel bar inserting opening (11) and the depth positioning plate (2); the elastic center positioning piece (3) comprises a first elastic frame (31), a second elastic frame (32) and a connecting edge (33) for connecting the first elastic frame (31) and the second elastic frame (32); the first elastic frame (31) and the second elastic frame (32) are both provided with at least three sector frames (34) in a radially inward protruding mode, the tops, close to the axis of the barrel body (1), of the sector frames (34) on the first elastic frame (31) or the second elastic frame (32) are located on the circumference of the same circle to form a centering hole (35), and the reinforcing steel bars are inserted into the two centering holes (35) through rubber sealing plugs at reinforcing steel bar insertion holes (11) in a sealing mode and are arranged at intervals with the depth positioning plate (2).

2. A grout sleeve capable of achieving rebar centering as defined in claim 1, wherein: each fan-shaped frame (34) is obliquely arranged to form a guide circular table hole, and the centering hole (35) is the smaller end of the guide circular table hole and is far away from the reinforcing steel bar insertion opening (11).

3. A grout sleeve capable of achieving rebar centering as defined in claim 2, wherein: a first convex ring (14) and a second convex ring (15) which are inwards convex in the radial direction are arranged in the cylinder body (1), and the elastic center positioning piece (3) is assembled between the first convex ring (14) and the second convex ring (15).

4. A grout sleeve capable of achieving rebar centering as defined in claim 3, wherein: the number of the elastic center positioning pieces (3) is at least two and is even.

5. A grout sleeve capable of achieving rebar centering as defined in claim 1, wherein: the depth positioning plate (2) is provided with a center slurry passing hole (21), and the aperture of the center slurry passing hole (21) is smaller than the diameter of the reinforcing steel bar.

6. A grout sleeve capable of achieving rebar centering as defined in claim 5, wherein: the depth positioning plate (2) comprises at least two fan-shaped blocks (22) arranged at intervals.

7. A grout sleeve capable of achieving rebar centering as defined in claim 1, wherein: a plurality of convex rings arranged at intervals are arranged in the cylinder body (1), and a shear groove (16) is formed between every two adjacent convex rings.

8. A rebar centering sleeve as claimed in any one of claims 1 to 7 wherein: the elastic center positioning piece (3) is a steel wire bending manufacturing piece.

9. A grout sleeve capable of achieving rebar centering as defined in claim 8, wherein: connect limit (33) to be provided with at least two and interval setting, first elasticity frame (31) with second elasticity frame (32) are C type structure, connect limit (33) and set up the opening part at C type structure.