CN220747439U - Inversion type grouting sleeve without grout holes on side - Google Patents

Abstract

The application relates to the technical field of precast concrete member construction, in particular to a side-edge slurry-hole-free inverted grouting sleeve, which comprises a half grouting cylinder and a full grouting cylinder; the semi-grouting cylinder comprises a connecting part for connecting prefabricated steel bars and a sleeve main body integrally formed with the connecting part, a grouting cavity for filling slurry is formed in the sleeve main body, one end of the grouting cavity is opened and positioned at the end part of the semi-grouting cylinder, and the assembly steel bars can be inserted into the grouting cavity; the full grouting cylinder comprises a connecting cavity and an assembling cavity, the connecting cavity and the assembling cavity are mutually communicated, openings of the connecting cavity and the assembling cavity are respectively located at two ends of the full grouting cylinder, prefabricated reinforcing steel bars can be inserted into the connecting cavity, and assembling reinforcing steel bars can be inserted into the assembling cavity. The grouting structure has the effect of reducing the possibility of being not full in grouting during construction so as to improve the stability of the connecting structure.

Description

Inversion type grouting sleeve without grout holes on side

Technical Field

The application relates to the field of precast concrete member construction technology, in particular to a side slurry-hole-free inverted grouting sleeve.

Background

With the development of modern building industry technology, assembled concrete structures are widely used. In fabricated concrete structures, a large number of precast concrete elements are generally used, and the connection between the precast concrete elements, particularly the connection of the reinforcing bars, is a key technology of the fabricated concrete structure.

The connection mode of the steel bars recorded in the related art mainly adopts a grouting sleeve, the grouting sleeve is commonly used for connecting prefabricated steel bars and assembled steel bars, the grouting sleeve is divided into a full grouting cylinder and a half grouting cylinder, and the full grouting sleeve is more used for connecting the steel bars of the component wall column and the transverse component beam; the half grouting sleeve is more used for connecting vertical steel bars such as shear walls, frame columns and the like.

When in actual use, the grouting sleeve is provided with a slurry inlet and a slurry outlet in the lateral direction, the slurry inlet is positioned below the slurry overflow hole, grouting is performed in the grouting sleeve through the slurry inlet until grouting material overflows from the slurry overflow hole, grouting can be stopped, and the assembly connection is completed after the grouting material is solidified. However, under normal conditions, a distance exists between the grouting hole and the top of the grouting sleeve, and as the grouting condition inside the grouting sleeve cannot be observed outside, the phenomenon of incomplete grouting easily occurs, namely, the grouting sleeve cannot be filled with grouting material, gaps can occur between the grouting sleeve and the steel bars, and the strength of the building structure and the stability of the whole structure are further affected.

Disclosure of Invention

In order to reduce the possibility of incomplete grouting during construction and improve the stability of a connecting structure, the application provides a lateral grouting-free inverted grouting sleeve.

The application provides a side does not have slurry hole inversion formula first grout sleeve adopts following technical scheme:

an inverted grouting sleeve without slurry holes at the side comprises a half grouting cylinder and a full grouting cylinder;

the semi-grouting cylinder comprises a connecting part for connecting prefabricated steel bars and a sleeve main body integrally formed with the connecting part, a grouting cavity for filling slurry is formed in the sleeve main body, one end of the grouting cavity is opened, the opening is positioned at the end part of the semi-grouting cylinder, and the assembled steel bars can be inserted into the grouting cavity;

the full grouting cylinder comprises a connecting cavity and an assembling cavity, the connecting cavity and the assembling cavity are communicated with each other, openings of the connecting cavity and the assembling cavity are respectively positioned at two ends of the full grouting cylinder, prefabricated reinforcing steel bars can be inserted into the connecting cavity, and assembling reinforcing steel bars can be inserted into the assembling cavity;

when two half grout cylinders are connected, two full grout cylinders are connected or the half grout cylinders are connected with the full grout cylinders, the two half grout cylinders are coaxially arranged, and the end parts are connected with the end parts.

By adopting the technical scheme, during construction, according to actual construction conditions, a half grouting cylinder, a full grouting cylinder or a combination is selected to be used, during grouting, the prefabricated reinforcing steel bars are connected to the half grouting cylinder, a certain length of the prefabricated reinforcing steel bars is reserved at the top of the lower-layer vertical component, the cast-in-place connection part is reserved at the top of the lower-layer vertical component to fixedly connect the prefabricated reinforcing steel bars, grouting is carried out from the opening of the grouting chamber, after grouting is fully observed in the grouting chamber, the prefabricated component is hoisted in place, the assembly reinforcing steel bars are inserted into the grouting chamber which is just fully grouted, a certain overflow space is reserved after the grouting is pressed, the grouting chamber is always in a fully grouting state, and after the grouting reaches a certain strength, the installation of the prefabricated component is completed; then, after the slurry is solidified, the assembled steel bars inserted into the grouting cavity can be used as new prefabricated steel bars, a half grouting cylinder or a full grouting cylinder is selected, and the operation is repeated, so that the continuous installation of the components can be realized. Similarly, when the full grouting barrel is selected, the prefabricated reinforcing steel bars are inserted into the connecting cavity, the opening of the connecting cavity is in a closed state, grouting is conducted through the opening of the assembling cavity until the connecting cavity and the assembling cavity are all in a full state of slurry, at the moment, the assembling reinforcing steel bars are inserted into the assembling cavity, and the subsequent installation is continued after the slurry is solidified. The influence of excessive holes on the fullness is reduced, the steel bars are inserted again in the state of complete grouting inside the half grouting cylinder and the full grouting cylinder, the possibility of incomplete grouting during construction is reduced, and the grouting sleeve in the application reduces the lateral grouting holes, so that the processing production cost of the grouting sleeve can be saved.

Optionally, ribs are formed on the inner walls of the half grouting cylinder and the full grouting cylinder.

By adopting the technical scheme, after the injected slurry is solidified, namely grouting has certain strength, the convex rib can be combined with the slurry, and the combination property of the half grouting cylinder or the full grouting cylinder and the slurry is enhanced.

Optionally, the bead is provided with a plurality of, and a plurality of the bead is followed the semicrystalline grouting section of thick bamboo or the length direction interval distribution of holoaming section of thick bamboo.

Through adopting above-mentioned technical scheme, a plurality of bosss make half grout section of thick bamboo or full grout section of thick bamboo stronger with the cohesiveness of thick liquid, joint strength is higher.

Optionally, a locating piece is formed on the inner wall of the full grouting barrel, the locating piece is perpendicular to the axis of the full grouting barrel, and the locating piece is a dividing line of the connecting cavity and the assembling cavity.

Through adopting above-mentioned technical scheme, the spacer plays the effect of location, and with the assembly reinforcing bar is constantly in depth, when the butt on the spacer, just can't remove any more to play the positioning effect.

Optionally, a sealing plug is arranged at one end of the full grouting barrel, which is close to the connecting cavity, and the assembly reinforcing steel bar penetrates through the sealing plug.

By adopting the technical scheme, the sealing plug can play a sealing role, and the possibility of slurry leakage is reduced.

Optionally, a groove is formed at one end of the full grouting barrel, which is close to the connecting cavity, and the sealing plug can be embedded in the groove.

Through adopting above-mentioned technical scheme, install the sealing plug in the recess, the sealing plug of being convenient for is fixed, and the recess can be spacing the sealing plug, improves the leakproofness.

Optionally, the prefabricated steel bar is detachably connected with the connecting part.

Through adopting above-mentioned technical scheme, prefabricated reinforcing bar can dismantle with connecting portion and be connected, equipment and dismantlement when can be convenient for construction.

Optionally, the prefabricated steel bar is in threaded connection with the connecting part.

Through adopting above-mentioned technical scheme, threaded connection both can satisfy the dismantlement requirement, can improve the leakproofness of junction again, reduces the possibility that leaks thick liquid.

Optionally, a boss is formed on the inner wall of the half grouting barrel, and the grouting cavity is funnel-shaped.

By adopting the technical scheme, the grouting chamber is funnel-shaped, so that the fullness of grouting can be improved.

Alternatively, the half grouting cylinder and the full grouting cylinder can be used independently.

Through adopting above-mentioned technical scheme, according to the actual conditions of construction, can select the suitable type grout sleeve for the connection of reinforcing bar has higher practicality and adaptability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the utility model provides a side does not have grout hole inversion formula and fills in first sleeve, with grout sleeve as prefabricated end to the connecting hole is replaced to the installation end reinforcing bar inserts the grout hole, inserts the installation reinforcing bar after filling in earlier, cancels conventional grout hole and play design of grout hole. The influence of excessive holes on the fullness is reduced, the possibility of incomplete grouting during construction is reduced, the grouting sleeve in the application reduces the side grouting holes, the processing production cost of the grouting sleeve can be saved, and meanwhile, the grouting sleeve in the application is utilized, so that the construction is more convenient and rapid, and the construction period is shortened;

2. the grouting sleeve in the application can be divided into a half grouting sleeve and a full grouting sleeve, and a proper type of grouting sleeve can be selected according to the actual condition of construction, so that the grouting sleeve is used for connecting reinforcing steel bars, has higher practicability and adaptability, and can meet different working requirements;

3. in this application, the main flow of construction is: reserving a half grouting sleeve with the prefabricated end steel bars connected on the top of a lower layer vertical component, reserving a plate thickness height at the top of the component as a cast-in-situ connection part, grouting according to a grouting direction, hoisting the prefabricated component in place after observing that the grouting sleeve is full, inserting the assembled end steel bars into the grouting sleeve which is just full in grouting, enabling the grouting to have a certain overflow space after being pressed, and then adjusting the verticality; and after the grouting material reaches a certain strength, the prefabricated part is installed. Thus, construction is simpler, and grouting quality can be improved.

Drawings

FIG. 1 is an elevation view of a full grout sleeve in an inverted, side-port-less, pre-grout sleeve of the present application;

FIG. 2 is an elevation view of a semi-grout sleeve in the side-port-less inverted prior-grout sleeve of the present application;

FIG. 3 is a cross-sectional view of a half grouting barrel in an inverted pre-grouting sleeve without a grout hole on the side of the present application;

FIG. 4 is a cross-sectional view of a full grout sleeve in an inverted pre-grout sleeve with no grout holes on the sides of the present application;

fig. 5 is a schematic diagram of a connection structure between a full grouting cylinder and a full grouting cylinder in an inverted grouting sleeve without slurry holes on the side.

Reference numerals illustrate: 1. a semi-grouting cylinder; 11. a connection part; 12. a grouting chamber; 13. a boss; 14. a sleeve body; 2. a full grouting cylinder; 21. a connecting chamber; 22. assembling the chamber; 3. a rib; 4. a positioning sheet; 5. a sealing plug; 6. a groove; 7. prefabricating reinforcing steel bars; 8. and (5) assembling reinforcing steel bars.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses side no-slurry-hole inversion type first grout sleeve, refer to fig. 1 and 2, side no-slurry-hole inversion type first grout sleeve includes half grout cylinder 1 and full grout cylinder 2, prefabricated reinforcing steel bar 7 can be connected in the one end of half grout cylinder 1, assembly reinforcing steel bar 8 can be inserted from the other end of half grout cylinder 1, prefabricated reinforcing steel bar 7 and assembly reinforcing steel bar 8 can be inserted from the both ends of full grout cylinder 2 respectively, and slurry can be injected from the one end of half grout cylinder 1 or full grout cylinder 2.

When in construction, a half grouting cylinder 1 or a full grouting cylinder 2 is selected to be used according to actual construction conditions, when the half grouting cylinder 1 is used, a prefabricated steel bar 7 is connected to the half grouting cylinder 1, grouting is conducted from an opening of one end of the half grouting cylinder 1, which is far away from the prefabricated steel bar 7, after the half grouting cylinder 1 is full of slurry, hoisting prefabricated parts in place, inserting an assembly steel bar 8 into the half grouting cylinder 1, which is just full of slurry, and after the slurry is pressed, a certain overflow space is reserved, so that the half grouting cylinder 1 is always in a state of full of slurry, and after the slurry reaches a certain strength, the prefabricated parts are installed; then, after the slurry is solidified, the assembly reinforcing steel bars 8 inserted into the semi-grouting barrel 1 can be used as new prefabricated reinforcing steel bars 7, and the above operation is repeated, so that the continuous installation of the components can be realized.

Similarly, when the full grouting barrel 2 is selected, the prefabricated steel bars 7 are inserted into the full grouting barrel 2 from one end, at the moment, the end parts of the full grouting barrel 2, inserted into the prefabricated steel bars 7, are in a closed state, grouting is performed through the opening of the other end of the full grouting barrel 2 until the whole full grouting barrel 2 is in a state of full slurry, at the moment, the assembly steel bars 8 are inserted into the full grouting barrel 2 from one grouting end, the assembly steel bars 8 inserted into the full grouting barrel 2 can be used as new prefabricated steel bars 7 after the slurry is solidified, and the operation is repeated, so that the subsequent installation is continued. The influence of excessive holes on the fullness is reduced, the possibility of incomplete grouting during construction is reduced by inserting the assembly reinforcing steel bars 8 in the state of complete grouting inside the half grouting cylinder 1 and the full grouting cylinder 2, and the grouting sleeve in the application reduces the side grouting holes, so that the processing production cost of the grouting sleeve can be saved.

Specifically, referring to fig. 2 and 3, the semi-grouting barrel 1 includes a connection part 11 and a sleeve body 14, the connection part 11 and the sleeve body 14 are integrally formed, and the prefabricated steel bar 7 is detachably connected with the connection part 11, so that the assembly and the disassembly during construction can be facilitated. Preferably, the prefabricated steel bar 7 is in threaded connection with the connecting part 11, and the tightness of the connecting part can be improved through the threaded connection, so that the detachable requirement can be met, the tightness of the connecting part can be improved, and the possibility of slurry leakage is reduced.

Further, a grouting chamber 12 is formed on the sleeve body 14, and the grouting chamber 12 is provided with an opening at the end of the semi-grouting cylinder 1. After the prefabricated reinforcing steel bars 7 are in threaded connection with the connecting parts 11, mortar can be injected into the grouting cavity 12, and along with continuous injection of the mortar, the mortar can be filled in the grouting cavity 12, at the moment, the assembly reinforcing steel bars 8 are inserted into the grouting cavity 12, the mortar in the grouting cavity 12 is extruded, part of the mortar overflows, and the plumpness of the mortar in the grouting cavity 12 can be ensured after the mortar overflows.

Referring to fig. 2 and 3, a boss 13 is formed on the inner wall of the semi-grouting barrel 1, and the grouting chamber 12 is funnel-shaped, that is, the grouting chamber 12 is divided into two parts under the action of the boss 13, and the diameter of the part far from the connecting part 11 is larger than that of the part near the connecting part 11. The grouting chamber 12 is funnel-shaped, so that the fullness of grouting can be improved, and during grouting, slurry close to the connecting portion 11 can be extruded by slurry above, so that the end portion, close to the connecting portion 11, of the assembly reinforcing steel bar 8 is fixed more firmly, and the stability is higher.

Referring to fig. 4 and 5, the full grouting barrel 2 includes a connection chamber 21 and an assembly chamber 22, the connection chamber 21 and the assembly chamber 22 are communicated with each other, openings of the connection chamber 21 and the assembly chamber 22 are respectively located at both ends of the full grouting barrel 2, the prefabricated reinforcing bars 7 can be inserted into the connection chamber 21, and the assembly reinforcing bars 8 can be inserted into the assembly chamber 22. When grouting, the prefabricated reinforcing steel bars 7 are inserted into the connecting cavity, at the moment, the opening of the connecting cavity 21 is in a closed state, grouting is performed through the opening of the assembling cavity 22 until the connecting cavity 21 and the assembling cavity 22 are all in a full state of slurry, at the moment, the assembling reinforcing steel bars 8 are inserted into the assembling cavity 22, the assembling reinforcing steel bars 8 inserted into the assembling cavity 22 can serve as new prefabricated reinforcing steel bars 7 after the slurry is solidified, and then subsequent installation can be continued.

Of course, referring to fig. 3, 4 and 5, according to actual construction conditions, the full grouting cylinder 2 may be used alone, the half grouting cylinder 1 may be used alone, or the full grouting cylinder 2 and the half grouting cylinder 1 may be used in combination, and when the two half grouting cylinders 1 are connected, the two full grouting cylinders 2 are connected, or the half grouting cylinder 1 and the full grouting cylinder 2 are connected, both are coaxially arranged and the end is connected with the end.

Further, referring to fig. 3 and 4, ribs 3 are formed on the inner walls of the half grouting cylinder 1 and the full grouting cylinder 2, the ribs 3 are provided in plurality, and the ribs 3 are uniformly distributed at intervals along the length direction of the half grouting cylinder 1 or the full grouting cylinder 2. When the injected slurry is solidified, i.e. the slurry has a certain strength, the ribs 3 can be combined with the slurry to enhance the combination of the half grouting cylinder 1 or the full grouting cylinder 2 with the slurry. And the plurality of ribs 3 make the combination of the half grouting cylinder 1 or the full grouting cylinder 2 and the slurry stronger, and the connection strength is higher.

Further, referring to fig. 4, a spacer 4 is formed on the inner wall of the full grouting barrel 2, the spacer 4 is disposed perpendicular to the axis of the full grouting barrel 2, and the spacer 4 is a dividing line connecting the chamber 21 and the assembly chamber 22. The locating piece 4 plays a role in locating, and along with the continuous penetration of the prefabricated steel bars 7 or the assembled steel bars 8, the locating piece 4 can not move any more when being abutted to the prefabricated steel bars, so that the locating effect is achieved.

Of course, the positioning plate 4 may be replaced by a positioning pin, and the positioning pin may be provided to be detachable or may be designed to be integral with the full grouting barrel 2.

Referring to fig. 4, a sealing plug 5 is provided at one end of the full grouting barrel 2 near the connection chamber 21, and an assembly reinforcing steel bar 8 is penetrated on the sealing plug 5. The sealing plug 5 can play a sealing role, and the possibility of slurry leakage is reduced. In the present embodiment, the type of the sealing plug 5 is not particularly limited, and only the working requirements need to be satisfied. The end of the full grouting barrel 2, which is close to the connecting cavity 21, is provided with a groove 6, and the sealing plug 5 can be embedded in the groove 6. Install sealing plug 5 in recess 6, sealing plug 5 is fixed of being convenient for, and recess 6 can be spacing sealing plug 5, improves the leakproofness.

Note that, the materials of the half grouting barrel 1 and the full grouting barrel 2 may be metal, ultra-high performance concrete, fiber reinforced composite material or polyvinyl chloride, and in this embodiment, the materials of the half grouting barrel 1 and the full grouting barrel 2 are not particularly limited.

Of course, the axes of the precast reinforcement 7 and the assembled reinforcement 8 should be arranged in line with the axes of the half grouting cylinder 1 and the full grouting cylinder 2. Thus, after the slurry is solidified, the stress is uniform, and the strength of the whole structure is high.

The implementation principle of the inverted grouting sleeve without the grout holes on the side edge is as follows: during construction, according to actual construction conditions, the half grouting cylinder 1, the full grouting cylinder 2 or the combination is selected to be used, when grouting, the prefabricated reinforcing steel bars 7 are connected to the connecting parts 11, a certain length of the prefabricated reinforcing steel bars 7 are reserved at the tops of the lower-layer vertical members, cast-in-place connecting parts are reserved at the tops of the lower-layer vertical members to fixedly connect the prefabricated reinforcing steel bars 7, grouting is carried out from the openings of the grouting chambers 12, after grouting is carried out in the grouting chambers 12, the prefabricated members are hoisted in place, the assembled reinforcing steel bars 8 are inserted into the grouting chambers 12 which are just grouted, a certain overflow space is reserved after the grouting is pressed, the grouting chambers 12 are always in a state of full grouting, and after the grouting reaches a certain strength, the installation of the prefabricated members is completed; then, after the slurry is solidified, the assembly reinforcing steel bars 8 inserted into the grouting chamber 12 can be used as new prefabricated reinforcing steel bars 7, then the half grouting cylinder 1 or the full grouting cylinder 2 is selected, and the operation is repeated, so that the continuous installation of the next layer of components can be realized. Similarly, when the full grouting barrel 2 is selected, the prefabricated reinforcing steel bars 7 are inserted into the connecting cavity 21, the opening of the connecting cavity 21 is in a closed state, grouting is performed through the opening of the assembling cavity 22 until the connecting cavity 21 and the assembling cavity 22 are all in a full state of slurry, at the moment, the assembling reinforcing steel bars 8 are inserted into the assembling cavity 22, and after the slurry is solidified, the assembling reinforcing steel bars 8 inserted into the assembling cavity 22 can be used as new prefabricated reinforcing steel bars 7, so that subsequent installation can be continued. The influence of excessive holes on the fullness is reduced, the assembly reinforcing steel bars 8 are inserted again under the condition that the inner parts of the half grouting barrel 1 and the full grouting barrel 2 are fully grouting, the possibility of non-fullness grouting during construction is reduced, and the grouting sleeve in the application reduces the side grouting holes, so that the processing production cost of the grouting sleeve can be saved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a side does not have slurry hole inversion formula first grout sleeve which characterized in that: comprises a half grouting cylinder (1) and a full grouting cylinder (2);

the semi-grouting cylinder (1) comprises a connecting part (11) for connecting prefabricated steel bars (7) and a sleeve main body (14) which is integrally formed with the connecting part (11), a grouting cavity (12) for filling slurry is formed in the sleeve main body (14), one end of the grouting cavity (12) is opened, the opening is positioned at the end part of the semi-grouting cylinder (1), and an assembly steel bar (8) can be inserted into the grouting cavity (12);

the full grouting cylinder (2) comprises a connecting cavity (21) and an assembling cavity (22), the connecting cavity (21) and the assembling cavity (22) are communicated with each other, openings of the connecting cavity (21) and the assembling cavity (22) are respectively positioned at two ends of the full grouting cylinder (2), a prefabricated reinforcing steel bar (7) can be inserted into the connecting cavity (21), and an assembling reinforcing steel bar (8) can be inserted into the assembling cavity (22);

when two half grouting cylinders (1) are connected, two full grouting cylinders (2) are connected or the half grouting cylinders (1) and the full grouting cylinders (2) are connected, the two half grouting cylinders are coaxially arranged, and the end parts are connected with the end parts.

2. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: and ribs (3) are formed on the inner walls of the half grouting cylinder (1) and the full grouting cylinder (2).

3. The side-port-free inverted pre-grouting sleeve according to claim 2, wherein: the multi-layer grouting device is characterized in that a plurality of ribs (3) are arranged, and the ribs (3) are distributed at intervals along the length direction of the half grouting cylinder (1) or the full grouting cylinder (2).

4. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: the inner wall of the full grouting barrel (2) is provided with a locating piece (4), the locating piece (4) is perpendicular to the axis of the full grouting barrel (2), and the locating piece (4) is a dividing line of the connecting cavity (21) and the assembling cavity (22).

5. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: one end of the full grouting barrel (2) close to the connecting cavity (21) is provided with a sealing plug (5), and the assembly reinforcing steel bars (8) penetrate through the sealing plug (5).

6. The side-port-less inverted pre-grouting sleeve according to claim 5, wherein: one end of the full grouting barrel (2) close to the connecting cavity (21) is provided with a groove (6), and the sealing plug (5) can be embedded in the groove (6).

7. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: the prefabricated steel bar (7) is detachably connected with the connecting part (11).

8. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: the prefabricated steel bar (7) is in threaded connection with the connecting part (11).

9. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: the inner wall of the semi-grouting barrel (1) is provided with a boss (13), and the grouting cavity (12) is funnel-shaped.

10. The side-port-free inverted pre-grouting sleeve according to claim 1, wherein: the half grouting cylinder (1) and the full grouting cylinder (2) can be used independently.