Filling device for reserved hole of building structure

Abstract

The utility model relates to the technical field of building structures, in particular to a building structure reserved hole filling device which comprises an embedded sleeve pair and a supporting framework arranged in the embedded sleeve pair. Pre-embedded connecting bridges are clamped on the supporting framework, are symmetrically arranged by taking the center of the pre-embedded sleeve pair as the axis, and penetrate through the pre-embedded sleeve pair; the embedded connecting bridge comprises a sleeve bridge and reinforcing ribs located in the sleeve bridge. Cement mortar layers are filled in gaps between the pre-embedded sleeve pair and the supporting framework and gaps between the pre-embedded connecting bridge and the reinforcing ribs. According to the filling device for the reserved hole of the building structure, the supporting framework and the reinforcing ribs of the pre-buried connecting bridge jointly form a double structure for stabilizing the cement mortar, the filled cement mortar layer is effectively prevented from sliding down, cracks and water leakage are avoided, and potential safety hazards are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, and more specifically, to a filling device for reserved holes in building structures. Background Technique

[0002] Generally, the filling process of reserved holes in building structures is as follows: PVC pipes are pre-buried on the steel bar framework. After the concrete is poured and completed, the holes formed inside the PVC pipes are the reserved holes. After the later cantilever members are demolished, the reserved holes are filled tightly with cement mortar.

[0003] The patent with the publication number CN217326611 U discloses a filling device for reserved holes in building structures, which is provided with a pre-buried sleeve pair with a wider upper part and a narrower lower part. After the cement mortar filled in the pre-buried sleeve pair is formed, it is a cylindrical structure with a wider upper part and a narrower lower part, which can prevent the cement mortar in the reserved hole from sliding down; through the relative rotation between the upper cylinder and the lower cylinder, several splitting ribs are twisted into an hourglass-shaped mesh structure. After filling the cement mortar, this hourglass-shaped mesh structure can prevent water seepage. However, when thermal expansion and contraction occur in the above filling device for reserved holes in building structures, although it is a structure with a wider upper part and a narrower lower part, there is still a possibility of cracks after cold shrinkage. If the reserved hole is in a vertical state, the filling device inside it may still have a downward displacement after cold shrinkage, and there are still risks of water leakage and potential safety hazards. Content of the Utility Model

[0004] The utility model aims to provide a filling device for reserved holes in building structures to overcome the above-mentioned situations.

[0005] The filling device for reserved holes in building structures includes a pre-buried sleeve pair and a support framework arranged in the pre-buried sleeve pair; the support framework is clamped with a pre-buried connecting bridge, the pre-buried connecting bridge is symmetrically arranged with the center of the pre-buried sleeve pair as the axis of symmetry, and penetrates through the pre-buried sleeve pair; the pre-buried connecting bridge includes a sleeve bridge and a reinforcing bar located inside the sleeve bridge; the gap between the pre-buried sleeve pair and the support framework and the gap between the pre-buried connecting bridge and the reinforcing bar are filled with a cement mortar layer.

[0006] Further, the upper diameter of the pre-buried sleeve pair is larger than the lower diameter.

[0007] Further, the pre-buried sleeve pair and the pre-buried connecting bridge are simultaneously pre-buried in the building structure; the height of the pre-buried sleeve pair is the same as the thickness of the building structure, and the free end of the pre-buried connecting bridge inclines downward.

[0008] Further, the pre-buried sleeve pair is provided with through holes for the pre-buried connecting bridge to penetrate.

[0009] Further, the sleeve bridge is a circular pipe;

[0010] One end of the reinforcing rib is connected with a clamping member, and the clamping member includes a connecting section and a clamping plate.

[0011] Furthermore, the support framework includes a plurality of support disks arranged from top to bottom, and a steel bar group arranged between two adjacent support disks.

[0012] Furthermore, each support disk respectively includes an outer steel ring, an inner steel ring, and a plurality of horizontal steel bar segments arranged in the outer steel ring and the inner steel ring; the horizontal steel bar segments are radially distributed; the diameters of the outer steel rings of the support disks from top to bottom decrease in sequence.

[0013] Furthermore, the steel bar group includes obliquely arranged steel bar segments arranged in an annular matrix, the top ends of the obliquely arranged steel bar segments are fixedly connected to the outer steel ring, and the bottom ends are fixedly connected to the inner steel ring of the adjacent lower layer, forming an inverted frustum-shaped steel bar combination with a large upper opening and a small lower opening.

[0014] Furthermore, the number of the embedded connection bridges is adapted to the number of the support disks, and each reinforcing rib is placed on the outer steel ring.

[0015] Furthermore, each outer steel ring is provided with a groove for placing the reinforcing rib.

[0016] Furthermore, the clamping plate abuts against the inner side wall of the outer steel ring.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] For the filling device for the reserved hole of the building structure of the present utility model, the support disks and the steel bar group therebetween are assembled by welding to form a support framework, which is placed in the embedded sleeve pair, and the reinforcing rib in the embedded connection bridge is inserted into the sleeve bridge, and the clamping plate 24 is welded to the outer steel ring, and then cast-in-place filling with cement mortar is carried out. The gaps between the embedded sleeve pair and the support framework and between the sleeve bridge and the reinforcing rib are respectively filled with cement mortar layers. The support framework and the reinforcing rib of the embedded connection bridge jointly form a double structure for stabilizing the cement mortar, effectively avoiding the sliding of the filled cement mortar layer, avoiding the generation of cracks and water leakage, and effectively reducing potential safety hazards. Description of the Drawings

[0019] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the filling device for the reserved hole of the building structure in the embodiment.

[0021] Figure 2It is a schematic diagram of the embedded sleeve pair in the embodiment.

[0022] Figure 3 It is a partial cross-sectional view of the filling device for the reserved hole in the building structure in the embodiment.

[0023] Figure 4 It is a schematic diagram of the support skeleton and the embedded connection bridge in the embodiment.

[0024] Figure 5 It is a schematic diagram of the support skeleton in the embodiment.

[0025] In the figure: 1. Embedded sleeve pair; 11. Through hole;

[0026] 2. Embedded connection bridge; 21. Sleeve bridge; 22. Reinforcing rib; 23. Connection section; 24. Clamping plate;

[0027] 3. Support plate; 31. Outer steel ring; 32. Inner steel ring; 33. Horizontal steel bar section; 34. Groove;

[0028] 4. Reinforcing bar group. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1 - 5 shown, this embodiment provides a filling device for a reserved hole in a building structure, including an embedded sleeve pair 1 and a support skeleton arranged in the embedded sleeve pair 1; the support skeleton is clamped with an embedded connection bridge 2, and the embedded connection bridge 2 is symmetrically arranged with the center of the embedded sleeve pair 1 as the axis and penetrates through the embedded sleeve pair 1. In this embodiment, on the same plane, two groups of embedded connection bridges 2 are arranged. Each group of embedded connection bridges 2 includes a sleeve bridge 21 and a reinforcing rib 22 located in the sleeve bridge 21; the gap between the embedded sleeve pair 1 and the support skeleton and the gap between the sleeve bridge 21 and the reinforcing rib 22 are filled with a cement mortar layer.

[0031] Specifically, as Figure 1 and Figure 2As shown, the upper opening diameter of the embedded sleeve pair 1 is larger than the lower opening diameter, and the difference between the upper opening diameter and the lower opening diameter does not exceed 5 mm. The embedded sleeve pair 1 and the embedded connection bridge 2 are simultaneously embedded in the building structure. The height of the embedded sleeve pair 1 is consistent with the thickness of the building structure, and the free end of the embedded connection bridge 2 is arranged obliquely downward. And the embedded sleeve pair 1 is provided with a through hole 11 for the embedded connection bridge 2 to penetrate. After filling with cement mortar, the cement mortar fills the gaps between the embedded sleeve pair 1 and the support skeleton, and between the sleeve bridge 21 and the reinforcement bars 22, that is, a plurality of groups of obliquely downward reinforced support cement mortar columns arranged up and down are respectively formed on both sides of the reserved sleeve pair 1, which plays a good filling role in the reserved hole, and can effectively avoid phenomena such as water seepage, loosening, and detachment of the filling structure caused by thermal expansion and contraction.

[0032] In this embodiment, as Figures 3 - 5 shown, the support skeleton includes a plurality of support discs 3 arranged from top to bottom, and a steel bar group 4 arranged between two adjacent support discs 3. Among them, each support disc 3 respectively includes an outer steel ring 31, an inner steel ring 32, and a plurality of horizontal steel bar segments 33 arranged inside the outer steel ring 31 and the inner steel ring 32. Each horizontal steel bar segment 33 is radially distributed; the outer steel ring 31 and the inner steel ring 32 are respectively annular steel rings formed by strip steel plates. The diameters of the outer steel rings 31 of the support discs 3 from top to bottom gradually decrease, so as to be adapted to the upper thick and lower thin shape of the embedded sleeve pair 1.

[0033] Furthermore, the steel bar group 4 includes obliquely arranged steel bar segments arranged in an annular matrix. The top ends of the obliquely arranged steel bar segments are fixedly connected to the outer steel ring 31 flush with the top ends of the obliquely arranged steel bar segments, and the bottom ends are fixedly connected to the inner steel ring 32 of the adjacent lower layer, forming an inverted frustum-shaped steel bar combination with a large upper opening and a small lower opening.

[0034] More specifically, the sleeve bridge 21 in the embedded connection bridge 2 is a round tube, and its obliquely downward free end is closed, which can effectively prevent the slurry from entering the sleeve bridge during the pouring process of the building structure. The reinforcement bar 22 is an auxiliary steel bar segment arranged in the sleeve bridge 21, and the preferred arrangement position is the axial center line of the sleeve bridge 21. One end of the reinforcement bar 22 is connected with a clamping part, and the clamping part includes a connecting section 23 and a clamping plate 24. The clamping plate 24 abuts against the inner side wall of the corresponding outer steel ring 31. Among them, the connecting section 23 is made of a steel bar segment, the clamping plate 24 is made of a steel plate, and each outer steel ring 31 is respectively provided with a groove 34 for setting up the reinforcement bar 22.

[0035] It is worth noting that in the support skeleton, for the support disc 3 at the bottom, the bottom end of its outer steel ring 31 abuts against the inner side wall of the embedded sleeve pair 1, that is, the assembled support disc is erected inside the embedded sleeve pair 1 and will not fall off from the embedded sleeve pair 1.

[0036] To ensure the firm connection between the clamping plate 24 and the outer steel ring 31, after adjusting the positions of the clamping plate and the outer steel ring, the clamping plate 24 and the outer steel ring are welded to strengthen the fixation.

[0037] Among them, the number of groups of the embedded connection bridges 2 is adapted to the number of the support plates 3 of the support framework. In this embodiment, three groups of support plates 3 are arranged vertically, and two groups of steel bar groups 4 are respectively arranged between two adjacent support plates 3; correspondingly to the number of support plates 3, each group of support plates is provided with a group of embedded connection bridges 2, and each group of embedded connection bridge combinations is composed of two symmetrically arranged embedded connection bridge monomers, and a total of 3 groups of embedded connection bridges are arranged from top to bottom. In practical applications, each group of embedded connection bridge combinations can also be provided with three or more embedded connection bridge monomers, so as to strengthen the support and reinforcement effects on the embedded sleeve pair 1.

[0038] In practical applications, the grooves of the outer steel rings 31 of the support plates 3 are arranged at the lower edge of the outer steel rings 31. Correspondingly, the connecting sections 23 connected by the reinforcing ribs 22 in the embedded connection bridges 2 are located above the ends of the reinforcing ribs 22. Correspondingly, the clamping plates 24 are located above the connecting sections 23. When erected, the reinforcing ribs 22 together with the clamping plates 24 erect the outer steel rings 31. Whether the outer steel rings 31 are located above or below the clamping plates 24, the assembled support framework is erected in the embedded sleeve pair 1 and will not fall from the lower opening of the embedded sleeve pair 1. At the same time, each embedded connection bridge is arranged obliquely, so that the support framework and the reinforcing ribs 22 of the embedded connection bridges 2 jointly form a double structure for stabilizing the cement mortar, effectively preventing the filled cement mortar layer from sliding down, avoiding the generation of cracks, and effectively reducing potential safety hazards.

[0039] For the filling device for the reserved hole in the building structure provided in this embodiment, the embedded sleeve pair 1 and the embedded connection bridges 2 are embedded in the building structure. The large opening of the embedded sleeve pair 1 faces upward and the small opening faces downward. The free ends of the sleeve bridges 21 in the embedded connection bridges 2 are inclined downward, and the outer diameter of the sleeve bridge 21 is equal to the through hole 11 on the outer wall of the embedded sleeve pair 1. When applied, in order to prevent the embedded connection bridges 2 from detaching from the embedded sleeve pair 1 during the embedding process, a stop block is arranged at one end of the sleeve bridge 2 located inside the embedded sleeve pair 1, which can abut against the inner wall of the embedded sleeve pair 1 to prevent the sleeve bridge 2 from detaching from the embedded sleeve pair 1.

[0040] Three groups of support plates 3 and two groups of steel bar groups 4 therebetween are assembled by welding to form a support skeleton, which is placed in the embedded casing pair 1. And the reinforcing bars 22 in the embedded connection bridge 2 are inserted into the casing bridge 21, and the clamping plate 24 is welded to the outer steel ring. Subsequently, cast-in-place cement mortar is filled. The gaps between the embedded casing pair 1 and the support skeleton and between the casing bridge 21 and the reinforcing bars 22 are respectively filled with cement mortar layers, forming a reserved hole filling structure with a stable structure. The support skeleton and the reinforcing bars 22 arranged obliquely around can effectively prevent the cement mortar layer from sliding down after molding, effectively reduce cracks and eliminate potential safety hazards.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filling device for reserved holes in building structures, characterized in that: The invention comprises a pre-buried sleeve pair (1) and a support frame arranged in the pre-buried sleeve pair (1); the support frame is provided with a pre-buried connection bridge (2), the pre-buried connection bridge (2) is arranged symmetrically with the center of the pre-buried sleeve pair (1) as an axis, and passes through the pre-buried sleeve pair (1); the pre-buried connection bridge (2) comprises a sleeve bridge (21) and a reinforcing rib (22) located in the sleeve bridge (21); the gap between the pre-buried sleeve pair (1) and the support frame, and the gap between the pre-buried connection bridge (2) and the reinforcing rib (22) are filled with a cement mortar layer.

2. The filling device for reserved holes in building structures according to claim 1, characterized in that: The upper diameter of the embedded sleeve pair (1) is larger than the lower diameter.

3. The filling device for reserved holes in building structures according to claim 2, characterized in that: The embedded sleeve pair (1) and the embedded connection bridge (2) are embedded in the building structure at the same time; the height of the embedded sleeve pair (1) is consistent with the thickness of the building structure, and the free end of the embedded connection bridge (2) is inclined downward.

4. The filling device for reserved holes in building structures according to claim 3, characterized in that: The embedded sleeve pair (1) is provided with a through hole (11) for the embedded connecting bridge (2) to pass through.

5. The filling device for reserved holes in building structures according to claim 4, characterized in that: The sleeve bridge (21) is a round tube; One end of the reinforcing rib (22) is connected to a clamping piece, and the clamping piece comprises a connecting section (23) and a clamping plate (24).

6. The filling device for reserved holes in building structures according to claim 5, characterized in that: The support frame comprises a plurality of support plates (3) arranged from top to bottom, and a steel bar group (4) arranged between two adjacent support plates (3).

7. The filling device for reserved holes in building structures according to claim 6, characterized in that: Each of the support plates (3) comprises an outer steel ring (31), an inner steel ring (32), and a plurality of horizontal steel bar segments (33) arranged inside the outer steel ring (31) and the inner steel ring (32); each of the horizontal steel bar segments (33) is distributed in a radial shape; and the diameter of the outer steel ring (31) of each of the support plates (3) decreases from top to bottom.

8. The filling device for reserved holes in building structures according to claim 7, characterized in that: The steel bar group (4) comprises oblique steel bar segments arranged in a ring matrix, the top end of each oblique steel bar segment being fixedly connected to the outer steel ring (31) and the bottom end being fixedly connected to the inner steel ring (32) of the adjacent lower layer.

9. The filling device for reserved holes in building structures according to claim 8, characterized in that: The number of the pre-buried connection bridges (2) matches the number of the support plates (3), and each of the reinforcing ribs (22) is laid on the outer steel ring (31).

10. The filling device for reserved holes in building structures according to claim 9, characterized in that: Each of the outer steel rings (31) is provided with a groove (34) for arranging the reinforcing ribs (22); and the clamping plate (24) is in contact with the inner side wall of the outer steel ring (31).

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