Hollow block self-supporting core column steel bar positioning and fixing device
By using a hollow block self-supporting core column reinforcement positioning and fixing device, and by using a limiting ring and an elastic support rod to fix the core column reinforcement, the problem of the inability to fix the middle part of the core column reinforcement is solved, and the accurate positioning and fixing of the reinforcement is achieved, thus ensuring the construction quality.
Patent Information
- Application Number
- CN202423056337.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-11
AI Technical Summary
During the construction of hollow blocks, the middle part of the core column steel bar cannot be fixed, resulting in inaccurate positioning and weak fixation. When pouring concrete, the steel bar is prone to displacement, which affects the construction quality.
A hollow block self-supporting core column reinforcement positioning and fixing device is adopted, including a limiting ring and an elastic support rod. The limiting ring is fixed in the hole of the hollow block by the bending deformation of the elastic support rod, and the middle part of the elastic support rod is fixed by a fixing clip to prevent the reinforcement from shifting.
It effectively prevents the core column reinforcement from shifting during concrete pouring, ensuring the construction quality of the core column. The device is reusable and suitable for reinforcement bars of different diameters.
Smart Images
Figure CN223577445U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a hollow block core column construction tool, in particular to a hollow block self-supporting core column steel bar positioning and fixing device. BACKGROUND
[0002] When hollow blocks are used in secondary structures, the specification stipulates that the setting principle of wall structure columns and core columns is as follows:
[0003] 1. When the wall length is less than or equal to 8m or the layer height is twice, the core column can replace the structure column when the MS type block is used for the infill wall. The setting principle is as follows:
[0004] When the wall length is less than 3m, the core column or structure column can not be set.
[0005] When the wall length is greater than 3m, a through-height core column should be set in the middle section of the wall, with a reinforcement of 2φ12, preferably filled with Cb20 concrete, and the core column spacing is less than or equal to 3m.
[0006] 2. The core column should be set on both sides of the door and window openings and the reserved openings. When the core column is through-height, 2φ12 steel bars are placed diagonally in the hole; when the core column is not through-height, 1φ12 steel bars are placed in the center of the hole, and are connected to the horizontal tie beam or frame beam above and below.
[0007] When the seismic fortification intensity is 8 degrees and the width of the door and window openings is greater than 1.8m, the through-height core column should be set on both sides.
[0008] The core column steel bars should be embedded in the structure or connected to the pre-embedded steel bars in the structure, and the connection form is lap joint connection.
[0009] Since the core column steel bars can only be connected to the main body reserved steel bar at the bottom and top, the middle part of the core column steel bars cannot be fixed, the steel bar positioning is not accurate, the fixing is not firm, the steel bar is prone to displacement during concrete pouring, and the core column construction quality cannot be guaranteed. UTILITY MODEL CONTENTS
[0010] The utility model aims to provide a hollow block self-supporting core column steel bar positioning and fixing device to solve the problem that the middle part of the core column steel bars cannot be fixed during the core column construction, causing inaccurate steel bar positioning, firm fixing, and easy displacement of the steel bar during concrete pouring.
[0011] The utility model discloses a hollow block self -supporting type core column steel bar positioning and fixing device, including two limit rings, two limit rings are connected through two elastic support bars between, two elastic support bars are mutually symmetrical and set up, and the elastic support bar is curved to the inside and slightly curved and goes up, and the middle part of two elastic support bars is close to each other and is connected each other through fixed card.
[0012] As the further improvement of the utility model, the deformation compensation strip is arranged between the inner ring and the outer ring and close to the opening, the deformation compensation strip connects the inner ring and the outer ring, and the first U-shaped bending part is arranged on the deformation compensation strip.
[0013] As the further improvement of the utility model, the second U-shaped bending part is arranged on the outer ring, and the second U-shaped bending part is close to the opening position.
[0014] As the further improvement of the utility model, the non-axial limiting strip is arranged on the inner side surface of the inner ring.
[0015] As the further improvement of the utility model, the flexible limiting block is arranged on the opening of the inner ring, and the inner side of the flexible limiting block gradually approaches each other.
[0016] As the further improvement of the utility model, the fixed card includes two butt blocks, the two parallel fixed slots are arranged on the butt surface of the butt block, the clamping slot is arranged on the two sides of one butt block, the clamping pin is arranged on the two sides of another butt block, and the two butt blocks are fixedly connected through the clamping slot and the clamping pin.
[0017] As the further improvement of the utility model, the connecting part is arranged on the side of the limit ring away from the opening, the end surface of the connecting part away from the opening is a flat end surface, and the end of the elastic support bar is connected with the flat end surface.
[0018] The utility model is suitable for the condition of placing two core column steel bars diagonally in the hollow hole of hollow block, two limiting rings are placed in the hollow hole of hollow block, in the process of putting in, two limiting rings are close to each other to make the elastic supporting rod bend and deform, simultaneously make two core column steel bars be located in the inner ring of two limiting rings respectively, the bent elastic supporting rod extrudes two limiting rings to both ends, make two limiting rings contact with the inner wall of the hollow hole of hollow block respectively, thereby the position of two limiting rings is fixed. Because the elastic supporting rod bends to the inside and slightly bends upward at the same time, the middle part of two elastic supporting rods is fixed by using fixed card, make the elastic supporting rod not bend and deform along the horizontal plane when bending and deforming, but bend and deform upward, avoid that the elastic supporting rod and fixed card sink into the concrete surface downward when pouring concrete.
[0019] The utility model discloses the position of core column steel bar is limited and fixed through limiting ring and elastic supporting rod, the utility model bears the deformation force of steel bar itself, can prevent the displacement of core column steel bar when pouring core column concrete, thereby guaranteeing the forming quality of core column.
[0020] The deformation compensation structure of the opening position of the limiting ring can facilitate the core column steel bar to quickly enter the inner ring of the limiting ring, and can prevent the steel bar from being pulled out of the limiting ring. The non-axial limiting strip in the inner ring can make the utility model applicable to steel bars of different diameters. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the structure diagram of the utility model.
[0022] Figure 2 It is the use reference drawing of the utility model.
[0023] Figure 3 It is Figure 2 The top view of
[0024] Figure 4 It is the sectional view of the fixed card of the utility model.
[0025] Figure 5 It is the side view of the elastic supporting rod of the utility model.
[0026] In the drawing: 1, limiting ring, 2, elastic supporting rod, 3, fixed card, 4, hollow block, 5, core column steel bar, 1-1, outer ring, 1-2, inner ring, 1-3, axial supporting strip, 1-4, opening, 1-5, deformation compensation strip, 1-6, first U-shaped bending part, 1-7, second U-shaped bending part, 1-8, non-axial limiting strip, 1-9, flexible limiting block, 1-10, connecting part, 3-1, butt block, 3-2, fixed groove, 3-3, card slot, 3-4, card pin. DETAILED DESCRIPTION
[0027] The specific embodiments of this utility model will now be described with reference to the accompanying drawings.
[0028] like Figure 1 As shown, the hollow block 4 self-supporting core column steel bar 5 positioning and fixing device of this utility model includes two limiting rings 1, which are connected by two elastic support rods 2. The two elastic support rods 2 are symmetrically arranged, bent inward and slightly upward, and their middle parts are close to each other and connected by fixing clips 3.
[0029] The limiting ring 1 specifically includes an inner ring 1-2, an outer ring 1-1, and axial support bars 1-3. The outer ring 1-1 is connected to the ends of two elastic support rods 2. The inner ring 1-2 and the outer ring 1-1 are concentric and connected by several axial support bars 1-3. The axial support bars 1-3 are evenly distributed around the center of the inner ring 1-2 or the outer ring 1-1. An opening 1-4 is provided on the same side of the inner ring 1-2 and the outer ring 1-1. The opening 1-4 is generally located away from the elastic support rods 2 and is located between two adjacent axial support bars 1-3. The core column steel bar 5 can enter the inner ring 1-2 through the opening 1-4.
[0030] To prevent the core column steel bar 5 from detaching from the inner ring 1-2, the width of the opening 1-4 at the inner ring 1-2 is generally smaller than the diameter of the core column steel bar 5. This way, when the core column steel bar 5 passes through the opening 1-4, it will open the axial support bars 1-3 on both sides. In order to facilitate the entry of the core column steel bar 5 and prevent damage to the limiting ring 1, some of the axial support bars 1-3 are replaced with deformation compensation bars 1-5. Generally, the second axial support bar 1-3 near the opening 1-4 is replaced with a deformation compensation bar 1-5.
[0031] The deformation compensation strip 1-5 is provided with a first U-shaped bending part 1-6. When the core column steel bar 5 deforms the limiting ring 1 through the opening 1-4, the first U-shaped bending part shrinks to adapt to the deformation.
[0032] A second U-shaped bend 1-7 is provided on the outer ring 1-1. The second U-shaped bend 1-7 faces the interior of the outer ring 1-1 and is symmetrically arranged on both sides of the opening 1-4. When the core column steel bar 5 deforms the limiting ring 1 through the opening 1-4, the second U-shaped bend also shrinks to adapt to the deformation.
[0033] Several non-axial limiting strips 1-8 are provided on the inner side of the inner ring 1-2. The non-axial limiting strips 1-8 form a certain angle deviation with the axis of the inner ring 1-2 or the outer ring 1-1. When core column steel bars 5 of different diameters enter the inner ring 1-2, they automatically adapt by swinging the non-axial limiting strips 1-8, and ensure that the core column steel bars 5 are located at the center of the inner ring 1-2.
[0034] The non-axial limiting strips 1-8 on both sides of the opening 1-4 are symmetrical to each other and are inclined to the direction away from the opening 1-4, so as to facilitate the entering of the core column steel bars 5.
[0035] In order to prevent the core column steel bars 5 from being pulled out from the opening 1-4, flexible limiting blocks 1-9 are arranged on both sides of the opening 1-4 of the inner ring 1-2, the inner sides of the flexible limiting blocks 1-9 gradually approach each other to form a fish-tail shape, when the core column steel bars 5 enter from the opening 1-4, the two flexible limiting blocks 1-9 are forced apart, when the core column steel bars 5 enter into the inner ring 1-2, the two flexible limiting blocks 1-9 reset to block the opening 1-4.
[0036] As shown in Figure 4 , the fixed clamp 3 comprises two clamping blocks 3-1, two parallel fixed grooves 3-2 are arranged on the clamping surface of the clamping block 3-1, two elastic supporting strips are arranged in the two fixed grooves 3-2 respectively, a clamping groove 3-3 is arranged on both sides of one clamping block 3-1, a clamping pin 3-4 is arranged on both sides of the other clamping block 3-1, the two clamping blocks 3-1 are fixedly connected through the clamping groove 3-3 and the clamping pin 3-4, and the two clamping blocks 3-1 clamp the middle parts of the two elastic supporting strips together after clamping.
[0037] A connecting part 1-10 is arranged on the side of the limiting ring 1 away from the opening 1-4, the end face of the connecting part 1-10 away from the opening 1-4 is a flat end face, and the end of the elastic supporting rod 2 is connected with the flat end face.
[0038] As shown in Figure 2 , Figure 3 , the method of the utility model is as follows: positioning and paying off wire, the core column steel bars 5 are connected with the main body reserved steel bars through binding; after arranging bricks, two skin bricks are laid, then the two limiting rings 1 are placed in the hollow holes of the hollow blocks 4, in the placing process, the two limiting rings 1 approach each other to make the elastic supporting rod 2 bend and deform, and at the same time, the two core column steel bars 5 are respectively located in the inner rings 1-2 of the two limiting rings 1, the bent elastic supporting rod 2 extrudes the two limiting rings 1 to the two ends, so that the two limiting rings 1 are in contact with the inner walls of the hollow holes of the hollow blocks 4 respectively, and the positions of the two limiting rings 1 are fixed, thereby the two core column steel bars 5 are positioned and fixed; pouring core column concrete, pouring and tamping are carried out simultaneously, when pouring reaches the position below the limiting ring 1, the utility model is taken out, at this time, the core column steel bars 5 are fixed through the lower concrete; the foregoing steps are repeated until the laying is completed, and the utility model can be repeatedly used in the laying process.
[0039] As shown in Figure 5As shown, since the elastic support rods 2 are bent inwardly and slightly upwardly, the middle portions of the two elastic support rods 2 are fixed by using the fixing clamps 3, so that the elastic support rods 2 are not bent and deformed along the horizontal plane when being bent and deformed, but are bent and deformed upwardly, thereby avoiding that the elastic support rods 2 and the fixing clamps 3 sink into the concrete surface downwardly when the concrete is poured.
Claims
1. A self-supporting core column steel bar positioning and fixing device for hollow blocks, characterized in that, The two limiting rings are connected by two elastic supporting rods, which are symmetrically arranged, and the elastic supporting rods are inwardly and slightly upwardly curved, and the middle parts of the two elastic supporting rods are close to each other and are connected by a fixed clamp; the limiting ring comprises an inner ring, an outer ring and an axial supporting strip, the outer ring is connected with the end of the two elastic supporting rods, the inner ring and the outer ring are connected by a plurality of axial supporting strips, and the same side of the inner ring and the outer ring is provided with an opening for the core column steel bar to pass into the inner ring.
2. The hollow block self-contained core column rebar positioning and securing device of claim 1, wherein, A deformation compensation strip is arranged between the inner ring and the outer ring close to the opening position, and the deformation compensation strip connects the inner ring and the outer ring, and a first U-shaped bending part is arranged on the deformation compensation strip.
3. The hollow block self-contained core column rebar positioning and securing device of claim 1, wherein, A second U-shaped bending part is arranged on the outer ring, and the second U-shaped bending part is close to the opening position.
4. The hollow block self-contained core column rebar positioning and securing device of claim 1, wherein, A plurality of non-axial limiting strips are arranged on the inner side of the inner ring.
5. The hollow block self-contained core column rebar positioning and securing device of claim 1, wherein, Flexible limiting blocks are arranged on both sides of the opening of the inner ring, and the inner sides of the flexible limiting blocks gradually approach each other.
6. The hollow block self-contained core column rebar positioning and securing device of claim 1, wherein, The fixed clamp comprises two clamping blocks, two parallel fixed grooves are arranged on the clamping surface of the clamping block, a clamping groove is arranged on both sides of one clamping block, and a clamping pin is arranged on both sides of the other clamping block, and the two clamping blocks are fixedly connected through the clamping groove and the clamping pin.
7. The hollow block self-contained core column rebar positioning and securing device of claim 1, wherein, A connecting part is arranged on the side of the limiting ring away from the opening, the end face of the connecting part away from the opening is a flat end face, and the end of the elastic supporting rod is connected with the flat end face.