Plugging structure for prefabricated exterior wall hanging grouting

Abstract

The utility model relates to the technical field of building construction, and discloses a plugging structure for hanging grouting of a prefabricated exterior wall, which comprises a rubber pipe, one end of the rubber pipe is provided with a non-return part, the other end of the rubber pipe is fixedly connected with a positioning ring, and the maximum diameter of the positioning ring is larger than that of the rubber pipe; and the opening assembly is movably arranged in the other end of the rubber tube in a penetrating manner, and the opening assembly selectively opens the rubber tube. The non-return part is arranged on the rubber pipe, so that the possibility that grout flows out can be reduced after the grouting pipe is pulled out, and the combination firmness between the grouting sleeve and the connecting steel bar is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially is related to a kind of for prefabricated outer wall hanging grouting's plugging structure. BACKGROUND

[0002] In modern construction engineering, the use of prefabricated outer wall is increasingly widespread. Prefabricated outer wall usually needs to be hung and installed on the construction site, and then the grouting process is used to ensure the connection strength and sealing between the wall and the main structure.

[0003] Patent No. CN221919838U discloses a kind of concrete prefabricated wallboard grouting plugging structure, which is arranged on the outer side of rubber cylinder in several rows of barbs, when the support assembly is expanded to a certain extent, the barb tip is embedded in the inner wall of grouting port, at the same time, the outer peripheral side of rubber cylinder extrudes grouting port, effectively prevents rubber cylinder from falling off, and the barb tip is directed obliquely upwards, when the barb tends to fall outwards, the barb tip will further penetrate into the inner wall of grouting port, so that the rubber cylinder is further locked, effectively enhancing the stability of grouting port plugging.

[0004] However, such plugging structure has the following defects: on the one hand, there is a gap between the multiple top plates, which cannot guarantee that the opposite rubber cylinder and the inner wall of the grouting port are tightly fitted, and grouting leakage may occur; on the other hand, after grouting is completed, the grouting port is immediately plugged after the grouting pipe is pulled out, but there may still be some grouting liquid flowing out during this process, resulting in insufficient grouting and reducing the bonding strength between the prefabricated outer wall and the reinforcement. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of for prefabricated outer wall hanging grouting's plugging structure to overcome the above situation deficiency.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A kind of for prefabricated outer wall hanging grouting's plugging structure, comprising:

[0008] Rubber tube, one end of the rubber tube is provided with a check part, the other end is fixedly connected with a positioning ring, the maximum diameter of the positioning ring is greater than the maximum diameter of the rubber tube; and

[0009] The support assembly is selectively expanded by the rubber tube.

[0010] Further, the support assembly comprises:

[0011] The support block is slidably connected to the inner side wall of the other end of the rubber tube; and

[0012] A circular truncated cone connected with or integrated with one end of the supporting block close to the check portion, the upper base of the circular truncated cone is arranged towards the check portion.

[0013] Further, an extrusion assembly for driving the supporting block to slide along the inner wall of the rubber tube is further included.

[0014] Further, the end surface of the positioning ring away from the check portion is coaxially and fixedly connected with a connecting ring, and the side wall of the connecting ring is provided with a plurality of connecting sliding grooves.

[0015] The extrusion assembly includes a blocking cover, the cover of the blocking cover is arranged on the side of the end of the supporting block away from the circular truncated cone, and the outer side wall of the blocking cover is slidably connected with the inner side wall of the connecting ring, the outer side wall of the blocking cover is fixedly connected with a plurality of sliding protrusions, and the plurality of sliding protrusions are slidably connected with the plurality of connecting sliding grooves one by one, by driving the relative rotation between the blocking cover and the connecting ring, the circular truncated cone can be driven to be close to or away from the check portion.

[0016] Further, the connecting sliding groove includes:

[0017] A sliding-in section parallel to the axis direction of the connecting ring, an opening is arranged at the end of the sliding-in section away from the positioning ring;

[0018] An inclined section, one end of the inclined section is connected with the end of the sliding-in section close to the positioning ring; and

[0019] A locking section perpendicular to the axis direction of the connecting ring, one end of the locking section is connected with the other end of the inclined section, and the sliding protrusion is selectively slidably connected with one of the sliding-in section, the inclined section and the locking section.

[0020] Further, a blind hole is arranged at the end surface of the supporting block away from the circular truncated cone, a compression spring is arranged in the blind hole, one end of the compression spring is connected with the end wall of the blind hole;

[0021] The extrusion assembly further includes a connecting rod fixedly connected with the end cover on the side of the blocking cover close to the supporting block, and an extrusion block fixedly connected with the other end of the connecting rod, the extrusion block is slidably connected with the inner side wall of the blind hole, and the other end of the extrusion block abuts against the compression spring.

[0022] Further, a stop block is fixedly connected with the side wall of the blind hole, the stop block is slidably connected with the outer side wall of the connecting rod, and the stop block selectively abuts against the end surface of the supporting block away from the other end of the compression spring.

[0023] Further, the check portion is in a duckbill structure, and the flat mouth end thereof extends away from the end of the positioning ring.

[0024] Further, the outer side wall of the other end of the rubber tube extends to the peripheral side to form a connecting edge, and the connecting edge is fixedly connected with the positioning ring.

[0025] Further, the outer edge of the positioning ring extends outward to form a plurality of protruding portions, and the plurality of protruding portions are arranged at intervals along the outer edge of the positioning ring, and the protruding portions are detachably connected with cement nails.

[0026] Compared with the prior art, the utility model has at least the following advantages:

[0027] In use, one end of the rubber tube is inserted into the grouting opening, the positioning ring is fixed with the prefabricated outer wall, the grouting pipe injects slurry into the grouting opening through the rubber tube, when the grouting is stopped and the grouting pipe is pulled out of the rubber tube, the check portion can effectively prevent the backflow of the slurry, and then the opening assembly is installed in the rubber tube, so that the rubber tube is opened and better adheres to the inner side wall of the grouting opening to realize the plugging work of the grouting opening. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0029] Fig. 1 It is the overall structure schematic view of the utility model for the plugging structure of the hanging grouting of the prefabricated outer wall;

[0030] Fig. 2 It is the sectional view of the utility model for the plugging structure of the hanging grouting of the prefabricated outer wall;

[0031] Fig. 3 It is the assembly schematic view of the utility model opening assembly and stop block.

[0032] The drawings are as follows: 1, rubber tube;2, check portion;3, positioning ring;4, support block;5, circular table;6, connecting ring;7, connecting sliding groove;8, plugging cover;9, sliding protrusion;10, blind hole;11, compression spring;12, connecting rod;13, extrusion block;14, stop block;15, connecting edge;16, protruding portion;17, cement nail;701, sliding-in section;702, inclined section;703, locking section. DETAILED DESCRIPTION

[0033] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] With reference to Figs. 1-3 The present application provides a plugging structure for precast outer wall hanging and grouting, which comprises a rubber pipe 1, a positioning ring 3 and a strutting assembly.

[0036] The rubber pipe 1 is made of flexible material and has a certain elasticity, which can adapt to different diameters of grouting ports. One end of the rubber pipe 1 is provided with a check part 2, and the other end is connected with the positioning ring 3. The check part 2 has a duckbill-shaped structure, and the flat mouth end thereof extends away from the one end of the positioning ring 3. This design enables the check part 2 to effectively prevent the backflow of grout during the grouting process, and at the same time, after the grouting is completed, the check part 2 can quickly shrink and close the pipeline to ensure the grouting quality. The other end of the rubber pipe 1 is fixedly connected with the positioning ring 3, and the material of the positioning ring 3 can be selected from metal or hard plastic, etc., which has a certain strength and rigidity. The maximum diameter of the positioning ring 3 is greater than that of the rubber pipe 1. During installation, the positioning ring 3 is clamped on the surface of the precast outer wall, and one end of the rubber pipe 1 extends into the grouting port. Thus, the positioning ring 3 can achieve the limiting effect, prevent the rubber pipe 1 from excessively extending into the grouting port, and ensure the stability and reliability of the plugging structure. The strutting assembly is movably arranged in the other end of the rubber pipe 1, and the strutting assembly selectively expands the rubber pipe 1.

[0037] During use, one end of the rubber pipe 1 extends into the grouting port, the positioning ring 3 is fixed with the precast outer wall, and the grouting pipe injects grout into the grouting port through the rubber pipe 1. When the grouting is stopped and the grouting pipe is pulled out of the rubber pipe 1, the check part 2 can effectively prevent the backflow of grout. Then, by installing the strutting assembly in the rubber pipe 1, the rubber pipe 1 is expanded and better adheres to the inner wall of the grouting port to achieve the plugging work of the grouting port.

[0038] The present application sets the check part 2 on the rubber pipe 1, which can reduce the possibility of grout flowing out after the grouting pipe is pulled out, and enhance the combination firmness between the grouting sleeve and the connecting steel bar.

[0039] The prop-up assembly comprises a prop block 4 in sliding connection with the inner side wall of the other end of the rubber tube 1, and a circular table 5 connected with or integrally formed with one end of the prop block 4 close to the check portion 2, the prop block 4 is in the shape of a cylinder, the diameter of the prop block 4 is equal to the diameter of the lower bottom surface of the circular table 5, the prop block 4 is fixedly connected with the lower bottom surface of the circular table 5 coaxially or integrally formed, and the upper bottom surface of the circular table 5 faces the check portion 2. The prop block 4 can be made of metal or hard plastic, etc., has certain strength and wear resistance, and can freely slide in the rubber tube 1.

[0040] When the rubber tube 1 needs to be proped up, an external force is applied to the inside of the rubber tube 1, for example, in the form of knocking, to push the prop block 4 to slide along the inner wall of the rubber tube 1 towards the check portion 2. At this time, the prop block 4 drives the circular table 5 to move towards the check portion 2, the upper bottom surface of the circular table 5 contacts with the inner side wall of the check portion 2, and extrusion force is generated to gradually prop up the rubber tube 1. The design of the circular table 5 and the prop block 4 can extrude the rubber tube 1 in the circumferential direction, realize uniform extrusion effect, and make the rubber tube 1 closely fit the inner wall of the grouting opening, thereby reducing the grouting leakage.

[0041] Preferably, the utility model also comprises an extrusion assembly for driving the prop block 4 to slide along the inner wall of the rubber tube 1. The extrusion assembly is used for driving the prop block 4 to slide along the inner wall of the rubber tube 1, comprising a blocking cover 8, a connecting rod 12 and an extrusion block 13.

[0042] The end surface of the positioning ring 3 away from the check portion 2 is fixedly connected with a connecting ring 6 coaxially, a plurality of connecting sliding grooves 7 are arranged on the side wall of the connecting ring 6; the cover of the blocking cover 8 is arranged on the one end of the prop block 4 away from the circular table 5, and the outer side wall of the blocking cover 8 is in sliding connection with the inner side wall of the connecting ring 6. The outer side wall of the blocking cover 8 is fixedly connected with a plurality of sliding protrusions 9, and the plurality of sliding protrusions 9 are in one-to-one sliding connection with the plurality of connecting sliding grooves 7. By driving the relative rotation between the blocking cover 8 and the connecting ring 6, the circular table 5 can be driven to approach or move away from the check portion 2. In specific operation, the blocking cover 8 is held and rotated, the sliding protrusions 9 slide in the connecting sliding grooves 7, thereby pushing the prop block 4 to slide along the inner wall of the rubber tube 1, and the prop-up or contraction of the rubber tube 1 is realized.

[0043] Specifically, the connecting ring 6 is coaxially fixedly connected to the end face of the positioning ring 3 away from the check portion 2, and the side wall of the connecting ring 6 is provided with a plurality of connecting sliding grooves 7. The connecting sliding groove 7 comprises a sliding-in section 701, an inclined section 702 and a locking section 703, and the sliding protrusion 9 is selectively connected to one of the sliding-in section 701, the inclined section 702 and the locking section 703. The sliding-in section 701 is parallel to the axis direction of the connecting ring 6, and the end of the sliding-in section 701 away from the positioning ring 3 is provided with a notch, and the sliding protrusion 9 can enter or slide out of the sliding-in section 701; during sliding on the inclined section 702, the support block 4 can be pushed to slide along the inner wall of the rubber pipe 1, so as to achieve the expansion or contraction of the rubber pipe 1; the locking section 703 is arranged perpendicular to the axis direction of the connecting ring 6, and when sliding to the locking section 703, the rubber pipe 1 can be in interference fit between the circular table 5 and the inner wall of the grouting hole, so as to realize the sealing of the grouting hole.

[0044] The end face of the support block 4 away from the circular table 5 is provided with a blind hole 10, and the blind hole 10 is provided with a compression spring 11, one end of the compression spring 11 being connected to the end wall of the blind hole 10. The extrusion assembly further comprises a connecting rod 12 fixedly connected to the end cover of the plugging cover 8 near the support block 4, and an extrusion block 13 fixedly connected to the other end of the connecting rod 12, the extrusion block 13 being slidably connected to the inner side wall of the blind hole 10, and the other end of the compression spring 11 abutting against the extrusion block 13.

[0045] When the extrusion block 13 moves into the blind hole 10, the compression spring 11 is compressed, and the elastic force of the compression spring 11 can push the extrusion block 13 towards the check portion 2, driving the support block 4 and the circular table 5 to slide along the inner wall of the rubber pipe 1, so as to achieve the expansion effect of the rubber pipe 1.

[0046] The side wall of the blind hole 10 is fixedly connected with a stop block 14, the stop block 14 is slidably connected with the outer side wall of the connecting rod 12, and the stop block 14 selectively abuts against the end face of the support block 4 away from the other end of the compression spring 11. The function of the stop block 14 is that when the support block 4 and the circular table 5 are taken out, the plugging cover 8 is pulled out, which can drive the support block 4 and the circular table 5 to be taken out of the rubber pipe 1.

[0047] The outer edge of the positioning ring 3 extends outward to form a plurality of protruding portions 16, and the protruding portions 16 are arranged at intervals along the outer edge of the positioning ring 3. The protruding portions 16 are detachably connected with cement nails 17, and the material of the cement nails 17 can be selected from metal or high-strength plastic. When installing the plugging structure, the cement nails 17 are nailed into the surface of the prefabricated outer wall, which can realize the fixing process of the positioning ring 3.

[0048] The plugging structure realizes effective plugging of the hanging grouting hole of the prefabricated outer wall through the cooperation of the rubber pipe 1, the check portion 2, the positioning ring 3, the expansion assembly and the extrusion assembly, and has the advantages of simple structure, convenient operation, good plugging effect, etc., and can be widely applied in the field of building construction to improve the construction efficiency and quality.

[0049] The utility model discloses working principle:

[0050] In initial state, the prop block 4 and the circular platform 5 are not inserted into the rubber tube 1, at this moment, the rubber tube 1 is in the state, before grouting, need the one end of rubber tube 1 into the grouting mouth, through cement nail 17 with prefabricated outer wall fixed, then grouting is carried out and is combined, when grouting is completed, the grouting pipe is pulled out from rubber tube 1, check portion 2 can realize the effect of preventing the backflow of slurry, then prop block 4 and circular platform 5 are inserted into rubber tube 1, and the sliding protrusion 9 on the blocking cover 8 is sequentially slid into the sliding section 701, the inclined section 702 and the locking section 703, simultaneously, prop block 4 and circular platform 5 move towards check portion 2, make rubber tube 1 prop open, realize the interference fit of rubber tube 1 between grouting mouth and circular platform 5, thereby complete the plugging of grouting mouth.

[0051] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0052] The above-described embodiments are only preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A sealing structure for precast outer wall hanging grouting, characterized in that, The utility model relates to a rubber tube (1) one end is equipped with the nonreturn part (2), the other end fixedly connected with the locating ring (3), the locating ring (3) maximum diameter is greater than the maximum diameter of rubber tube (1), and the utility model relates to a support component that is movably arranged in the other end of rubber tube (1) inside, and the support component selectively supports rubber tube (1) apart. The support component includes: The support block (4) is slidably connected with the inner wall of the other end of the rubber tube (1), and the circular truncated cone (5) is connected with or integrally formed with one end of the support block (4) close to the nonreturn part (2), and the upper bottom surface of the circular truncated cone (5) is arranged towards the nonreturn part (2).

2. The sealing structure for precast outer wall hanging grouting according to claim 1, characterized in that, Further comprising a pressing assembly for driving the support block (4) to slide along the inner wall of the rubber tube (1). The end surface of the locating ring (3) away from the nonreturn part (2) is coaxially fixedly connected with a connecting ring (6), and the side wall of the connecting ring (6) is provided with a plurality of connecting sliding grooves (7); The pressing assembly includes a blocking cover (8), the cover of the blocking cover (8) is arranged on one end of the support block (4) away from the circular truncated cone (5), the outer side wall of the blocking cover (8) is slidably connected with the inner side wall of the connecting ring (6), a plurality of sliding protrusions (9) are fixedly connected with the outer side wall of the blocking cover (8), the plurality of sliding protrusions (9) are slidably connected with the plurality of connecting sliding grooves (7) one by one, by relatively rotating the blocking cover (8) and the connecting ring (6), the circular truncated cone (5) can be driven to be close to or away from the nonreturn part (2).

3. The sealing structure for precast outer wall hanging grouting according to claim 2, characterized in that, The connecting sliding groove (7) includes:

4. The sealing structure for precast outer wall hanging grouting according to claim 3, characterized in that, The sliding-in section (701) is parallel to the axis direction of the connecting ring (6), and the sliding-in section (701) is provided with an opening away from one end of the locating ring (3); The inclined section (702) is connected with one end of the sliding-in section (701) close to the locating ring (3); 5. The sealing structure for precast outer wall hanging grouting according to claim 4, characterized in that, And The locking section (703) is perpendicular to the axis direction of the connecting ring (6), one end of the locking section (703) is connected with the other end of the inclined section (702), and the sliding protrusion (9) is selectively slidably connected with one of the sliding-in section (701), the inclined section (702) and the locking section (703). The end surface of the support block (4) away from the circular truncated cone (5) is provided with a blind hole (10), the blind hole (10) is provided with a compression spring (11), one end of the compression spring (11) is connected with the end wall of the blind hole (10); The pressing assembly further includes a connecting rod (12) fixedly connected with an end cover on one side of the blocking cover (8) close to the support block (4), and an extrusion block (13) fixedly connected with the other end of the connecting rod (12), the extrusion block (13) is slidably connected with the inner side wall of the blind hole (10), and the extrusion block (13) abuts against the other end of the compression spring (11). ​ 6. The sealing structure for precast outer wall hanging grouting according to claim 5, characterized in that, ​ ​ 7. The sealing structure for precast outer wall hanging grouting according to claim 6, characterized in that, The side wall of the blind hole (10) is fixedly connected with a stop block (14), the stop block (14) is in sliding connection with the outer side wall of the connecting rod (12), and the stop block (14) selectively abuts against the end face of the other end of the supporting block (4) away from the compression spring (11).

8. The sealing structure for precast outer wall hanging grouting according to any one of claims 1 to 7, characterized in that, The reverse stop portion (2) is in a duckbill-shaped structure, and the flat mouth end thereof extends away from one end of the positioning ring (3).

9. The sealing structure for precast outer wall hanging grouting according to any one of claims 1 to 7, characterized in that, The other end of the rubber tube (1) extends outward to form a connecting edge (15), and the connecting edge (15) is fixedly connected with the positioning ring (3).

10. The sealing structure for precast outer wall hanging grouting according to claim 9, characterized in that, The outer edge of the positioning ring (3) extends outward to form a plurality of protruding portions (16), and the plurality of protruding portions (16) are arranged at intervals along the outer edge of the positioning ring (3), and the protruding portions (16) are detachably connected with cement nails (17).

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