CN219298597U

CN219298597U - Grouting sleeve with adjustable bottom elevation

Info

Publication number: CN219298597U
Application number: CN202320285022.1U
Authority: CN
Inventors: 王廷廷; 周婧; 梁环跃; 邓恺坚
Original assignee: Guangzhou Panyu Polytechnic
Current assignee: Guangzhou Panyu Polytechnic
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-04
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a grouting sleeve with an adjustable bottom elevation, which comprises a sleeve body and a hollow bolt base, wherein a first connecting thread is arranged at the bottom of the sleeve body, the center of a hollow bolt is a cavity, a second connecting thread is arranged at the upper part of the hollow bolt base, the first connecting thread is matched with the second connecting thread, and a notch is formed in the bottom of the hollow bolt base. According to the grouting sleeve, the hollow bolt base is additionally connected with the sleeve body in a threaded manner, the seam height of the bottom of the prefabricated part can be adjusted through threads, an adjusting device or a cushion block is not required to be additionally embedded in the side edge or the corner of the bottom of the prefabricated part, the number of accessories is reduced, and meanwhile the damage of possible cracking and water seepage in the later stage of the bottom, particularly an outer wall part, is reduced.

Description

Grouting sleeve with adjustable bottom elevation

Technical Field

The utility model relates to the technical field of civil engineering, in particular to a grouting sleeve with an adjustable bottom elevation.

Background

The grouting sleeve is also called a grouting sleeve joint or a sleeve grouting joint, is a combination body assembled by a specially processed sleeve, matched grouting materials and reinforcing steel bars, and is connected with the sleeve by injecting quick-hardening shrinkage-free grouting materials and relying on the bonding and biting action between materials when the reinforcing steel bars are connected. It is a common structure and method in the construction of longitudinal structures such as walls, columns, etc. of fabricated structures.

The bottom of the existing grouting sleeve is only provided with one hole, so that grouting materials flow into a slurry layer at the bottom of the prefabricated part, and only a penetrating effect is achieved; the grouting sleeve has no bottom supporting function, and a cushion block is additionally placed at the bottom when the prefabricated component is installed on site, so that the height of a slurry layer can be guaranteed.

If the elevation of the bottom of the grouting sleeve is adjustable, no cushion blocks are needed to be additionally placed at the bottom during on-site installation of the prefabricated components, so that the number of accessories is reduced, and the damage of possible cracking and water seepage at the later stage of the bottom, especially the outer wall parts, is also reduced.

Disclosure of Invention

The utility model aims to overcome the defect that an adjusting device or a cushion block is needed to be embedded in the side edge or the corner of the bottom of a prefabricated part when the grouting sleeve in the prior art is used, and provides the grouting sleeve with adjustable bottom elevation, which reduces the number of accessories on one hand and reduces the damage of possible cracking and water seepage at the later stage of the bottom on the other hand, in particular to an outer wall part.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a grout sleeve of adjustable bottom elevation, its includes sleeve body, hollow bolt base, the bottom of sleeve body is equipped with first connecting thread, hollow bolt's center is the cavity, hollow bolt base's upper portion is equipped with the second connecting thread, first connecting thread with second connecting thread assorted, the breach has been seted up to hollow bolt base's bottom, the breach with the cavity intercommunication.

Further, the notches are arranged in pairs.

Further, the height of the notch is 5-20 mm.

Further, the sleeve body is provided with a grouting port, a slurry outlet and a slurry circulating port, the grouting sleeve further comprises a screw rod between the sleeves, and the screw rod between the sleeves is connected with the slurry circulating port.

Further, two ends of the screw rods between the sleeves are respectively embedded into the slurry flowing ports of the adjacent sleeve bodies.

Further, the inter-sleeve screw is a solid screw.

Further, the screw rod between the sleeves is a hollow screw rod.

Further, the inter-sleeve screw is in threaded connection with the flow slurry port.

Further, the flow-through grout port is the same as the grout outlet or the grout outlet in height.

Further, the flow slurry outlet and the slurry outlet or the slurry filling port are arranged in a staggered manner.

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

the grouting sleeve is provided with the hollow bolt base matched with the sleeve body, the sleeve body is connected with the hollow bolt base through threads, slurry in the sleeve body flows into the slurry layer through a side gap of the hollow bolt base after flowing into the hollow bolt base, and the height of a seam at the bottom of a prefabricated part can be adjusted through threads due to the fact that the hollow bolt base is additionally connected with the sleeve body through threads, an adjusting device or a cushion block is not required to be additionally embedded at the side edge or the corner of the bottom of the prefabricated part, the number of accessories is reduced, and meanwhile damage of water seepage caused by cracking at the later stage of the bottom is reduced, and particularly an outer wall part is reduced.

The utility model also adds a flow slurry port on the sleeve body and adds screw rods between the sleeves to connect adjacent sleeve bodies, thereby not only being used for reinforcing the connection between the sleeve bodies and ensuring the stability of the sleeve bodies in the component, but also being used for flowing among grouting of each sleeve body and ensuring the compactness of grouting.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a grouting sleeve with adjustable bottom elevation according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a hollow bolt base of a grouting sleeve with adjustable bottom elevation according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of section I-I of FIG. 2;

fig. 4 is a schematic structural view of an inter-sleeve screw of a grouting sleeve with adjustable bottom elevation according to an embodiment of the present utility model.

Wherein:

10. a sleeve body; 11. a grouting port; 12. a slurry outlet; 13. a flow-through pulp port; 10a, first connecting threads; 20. a hollow bolt base; 20a, second connecting threads; 20b, a notch; 30. a screw rod between the sleeves; 31. and a third connecting thread.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present utility model are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, a structure diagram of a grouting sleeve with adjustable bottom elevation according to an embodiment of the present utility model is disclosed. The grouting sleeve for adjusting the elevation of the bottom part of the present embodiment includes a sleeve body 10 and a hollow bolt base 20. The side wall of the sleeve body 10 is provided with a grouting opening 11 and a grout outlet 12. A first connecting screw 10a is provided at the bottom of the sleeve body 10. Referring to fig. 2 and 3, the hollow bolt base 20 has a hollow center, i.e. the center is through, and is communicated with the sleeve body, so as to ensure that the hollow bolt base 20 can be circulated from the sleeve body. The hollow bolt base 20 is detachably connected to the bottom of the sleeve body 10. The detachable connection mode is as follows: a second coupling screw thread 20a is provided at an upper portion of the hollow bolt base 20, and the second coupling screw thread 20a is screw-engaged with the first coupling screw thread 10a. A notch 20b is further formed in the side edge of the bottom of the hollow bolt base 20, and the notch 2b is communicated with the cavity. After entering from the grouting opening 11 of the sleeve body 10, the slurry flows to the bottom of the sleeve body 10, then enters the hollow bolt base, and flows into the slave slurry layer at the bottom of the prefabricated part from the notch 20 b. Because the upper portion of the hollow bolt base 20 is provided with the second connecting screw thread 20a, and is in threaded connection with the bottom of the sleeve body 10, the relative height of the hollow bolt base 20 can be adjusted through the screw thread, the joint height of the bottom of the prefabricated part can be adjusted, and the joint height is ensured to be not less than 20mm specified in the specification and more. Therefore, the side edges or the corners of the bottom of the prefabricated part do not need to be additionally embedded with adjusting devices or cushion blocks, the number of accessories is reduced, and meanwhile, the damage of possible cracking and water seepage at the later stage of the bottom, especially the outer wall parts, is reduced.

In this embodiment, the hollow bolt base 20 may have a hexagonal shape, an octagonal shape, or the like, and is limited by a wrench when being mounted.

In the present embodiment, the notches 20b provided in the hollow bolt base 20 are provided in pairs, and may be provided in a pair, or may be provided in two or more pairs, as shown in fig. 3. The height of the notch 20b is 5-20 mm.

Referring to fig. 4, in the present embodiment, a slurry flow port 13 is also provided in the sidewall of the sleeve body 10. The grouting sleeve of the present embodiment further includes an inter-sleeve screw 30. The inter-sleeve screw 30 is connected to the flow-through ports 13. The two ends of the inter-sleeve screw 30 are respectively embedded into the flow pulp ports 13 of the adjacent sleeve bodies 10. One end of the inter-sleeve screw 30 is provided with a third connecting screw thread 31, the flow-through grout port 13 is provided with a fourth connecting screw thread (not shown), and the inter-sleeve screw 30 is connected with the flow-through grout port 13 through screw threads.

In an alternative embodiment, the inter-sleeve screw 30 is a solid screw, and may be a hot-rolled steel bar such as primary steel, which is only used to strengthen the connection between the sleeve bodies 10, so as to ensure the stability of the sleeve bodies 10 in the components.

In an alternative embodiment, the inter-sleeve screw 30 is a hollow screw. The hollow screw is a hollow steel pipe or a plastic pipe, plays a role in circulating grouting materials among grouting materials besides a role of a solid screw, and ensures grouting compactness. The hollow screw rod can also be used as a grouting inlet and a grouting outlet which are exposed out of the component, the length is set according to the requirement, and the exposed component is ensured to be convenient for grouting operation. The length of the screw 30 between the sleeves is fixed relative to the standard components, so that mass production can be realized, and the screw is matched with the grouting slurry port 13 formed on the sleeve body. The distance between the sleeve bodies is guaranteed to screw rod 30 between the sleeve, do not shift, make things convenient for later stage hoist and mount sleeve body 10 grout reinforcing bar to connect, guarantee sleeve body 10 outside protective layer thickness, guarantee that the grout fully flows between the sleeve body and sit thick liquid layer, it is easier to be full of, exhaust and reduce space and bubble, guarantee the connection of reinforcing bar, strengthen the rigidity of connection between the sleeve, be favorable to prefabricated component whole atress, reducible sleeve outer stirrup quantity, increase protective layer thickness, reduce infiltration harm, the regional more and more concentrated of structural component bottom reinforcing bar connection, interconnect between screw rod 30 and sleeve body 10 between the sleeve, can improve the shear capacity and the deformability of structural component bottom, especially can effectively strengthen the restraint of edge component concrete, improve the shock resistance of structural component.

In this embodiment, the flow-through grout outlet 13 is at the same height as the grout outlet 12 or the grout outlet 11. Of course, the slurry circulation port 13 may be offset from the slurry outlet port 12 or the slurry filling port 11, so as to reduce the weakening of the sidewall of the sleeve body 10.

The sleeve body 10, the hollow bolt base 20 and the inter-sleeve screw 30 in this embodiment may be made of ductile cast iron, alloy structural steel, carbon structural steel, stainless steel, copper, other metals, nonmetal, or 3D printing building materials. The grouting sleeve of the embodiment is suitable for being used as various sleeves such as a full grouting sleeve, a half grouting sleeve and the like. The grouting sleeve of the embodiment is suitable for connecting and installing all precast reinforced concrete member grouting sleeves, including but not limited to precast concrete frame columns, precast concrete shear walls, inner and outer wall plates and the like.

The above has described the grouting sleeve with adjustable bottom elevation disclosed in the embodiment of the present utility model in detail, and specific examples are applied herein to illustrate the principle and implementation of the present utility model, and the above description of the embodiment is only used to help understand the method and core idea of the present utility model; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present utility model, the present disclosure should not be construed as limiting the present utility model in summary.

Claims

1. A grout sleeve of adjustable bottom elevation, its characterized in that: including sleeve body, hollow bolt base, the bottom of sleeve body is equipped with first connecting thread, hollow bolt's center is the cavity, hollow bolt base's upper portion is equipped with the second connecting thread, first connecting thread with second connecting thread assorted, the breach has been seted up to hollow bolt base's bottom, the breach with the cavity intercommunication.

2. The adjustable bottom level grouting sleeve of claim 1, wherein: the notches are arranged in pairs.

3. The grouting sleeve of claim 2, wherein the bottom elevation is adjustable, wherein: the height of the notch is 5-20 mm.

4. The adjustable bottom level grouting sleeve of claim 1, wherein: the grouting sleeve comprises a sleeve body and is characterized in that the sleeve body is provided with a grouting opening, a slurry outlet and a slurry circulating opening, the grouting sleeve further comprises a screw rod between the sleeves, and the screw rod between the sleeves is connected with the slurry circulating opening.

5. The adjustable bottom level grouting sleeve of claim 4, wherein: the two ends of the screw rod between the sleeves are respectively embedded into the slurry flowing ports of the adjacent sleeve bodies.

6. The adjustable bottom level grouting sleeve of claim 5, wherein: the screw rods between the sleeves are solid screw rods.

7. The adjustable bottom level grouting sleeve of claim 5, wherein: the screw rod between the sleeves is a hollow screw rod.

8. The adjustable bottom level grouting sleeve of claim 4, wherein: the screw rod between the sleeves is in threaded connection with the flow slurry port.

9. The adjustable bottom level grouting sleeve of claim 4, wherein: the flow slurry outlet is the same as the slurry outlet or the grouting outlet in height.

10. The adjustable bottom level grouting sleeve of claim 4, wherein: the flow slurry outlet and the slurry outlet or the grouting port are arranged in a staggered mode.