Internal restraint mechanism for compensating shrinkage concrete
By designing half-pipe one and half-pipe two, and combining the columnar structure of the support components and the arc plate, the problem of the difficulty in quickly dismantling the internal constraint mechanism of the shrinkage-compensating concrete was solved, and efficient dismantling was achieved.
Patent Information
- Application Number
- CN202423074406.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing shrinkage-compensating concrete internal restraint mechanisms are difficult to separate quickly during dismantling, resulting in high operational difficulty and low dismantling efficiency.
The design employs two independent half-tubes, namely half-tube one and half-tube two. By removing the intermediate body, the internal constraint mechanism is separated into independent half-tubes, which are combined with the support components and the arc plate to form a columnar structure. A plastic film is wrapped on the outside, and the structure can be removed after the intermediate body is removed once it solidifies.
It enables rapid removal of the internal constraint mechanism, reduces operational difficulty, and improves disassembly efficiency.
Smart Images
Figure CN223647413U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of building engineering, in particular to an internal restraint mechanism for compensating shrinkage concrete. BACKGROUND
[0002] When a columnar cavity needs to be formed in the concrete, an internal restraint mechanism is needed to constrain the position of the concrete, so that the cavity formed after the concrete solidifies tends to be a predetermined shape.
[0003] The compensating shrinkage concrete is different from the ordinary concrete, and the compensating shrinkage concrete has an expanding agent added therein, and the compressive stress generated by the expansion of the compensating shrinkage concrete resists the tensile stress in the shrinkage process of the concrete, thereby reducing the deformation of the compensating shrinkage concrete. After the internal restraint mechanism is provided in the concrete, the internal restraint mechanism provides a compressive stress to the concrete, so that most of the compressive stress generated by the expansion of the compensating shrinkage concrete compensates for the tensile stress generated by the hardening shrinkage of the concrete. This makes the compensating shrinkage concrete tightly clamped with the internal restraint mechanism after solidification, and the internal restraint mechanism is difficult to remove. CONTENT OF THE INVENTION
[0004] In view of the deficiencies in the prior art, the present application provides an internal restraint mechanism for compensating shrinkage concrete. In the present application, a relatively independent half pipe one and a half pipe two are used. After the compensating shrinkage concrete is solidified, an operator can separate the internal restraint mechanism in the columnar structure into a relatively independent half pipe one and a half pipe two by extracting the intermediate body. This allows the operator to quickly remove the internal restraint mechanism from the hole of the concrete block in parts, reduces the difficulty of the operator in removing the internal restraint mechanism, and improves the disassembly efficiency of the operator.
[0005] The above application purpose of the present application is realized by the following technical scheme:
[0006] An internal restraint mechanism for compensating shrinkage concrete, comprising an intermediate body and symmetrically distributed half pipe one and half pipe two, the side opening directions of the half pipe one and the half pipe two are opposite, the inner sides of the half pipe one and the half pipe two are fixedly connected with support one, and the side openings of the half pipe one and the half pipe two are hingedly connected with arc-shaped plates;
[0007] The intermediate body is in the form of a strip, the intermediate body is between the half pipe one and the half pipe two, the outer side of the strip-shaped intermediate body has two symmetrically arranged first connecting portions and two symmetrically arranged second connecting portions, the ends of the two support one are respectively detachably connected with the two first connecting portions of the intermediate body, and the two second connecting portions of the intermediate body are detachably connected with support two;
[0008] In the assembled state, the arc-shaped plates on the half-pipe one and the half-pipe two are opened, the half-pipe one, the half-pipe two and the four arc-shaped plates form a cylindrical structure, the support piece two is away from one end of the intermediate body and abuts against the two arc-shaped plates on the same side, and the plastic film is sleeved outside the cylindrical structure.
[0009] Optionally, a strip-shaped mounting groove one is formed on the first connecting part, the mounting groove one and the central axis of the first connecting part are parallel to the central axis of the intermediate body, and the end of the support piece one is inserted into the mounting groove one.
[0010] Optionally, the support piece one comprises a connecting plate fixedly connected with the half-pipe one or the half-pipe two, the end of the connecting plate is fixedly connected to the end face of the stress block, the end face width of the stress block is greater than the thickness of the connecting plate, and in the assembled state, the stress block is inserted into the mounting groove one.
[0011] Optionally, a strip-shaped mounting groove two is formed on the second connecting part, the mounting groove two and the central axis of the second connecting part are parallel to the central axis of the intermediate body, and the end of the support piece two is inserted into the mounting groove two.
[0012] Optionally, the support piece two comprises an arc-shaped top plate, the inner side of the arc-shaped top plate is fixedly connected with a stress plate, one end of the stress plate away from the arc-shaped top plate is fixedly connected with a limiting strip, the limiting strip is inserted into the mounting groove two, the thickness of the stress plate is greater than the width of the mounting groove two, and the width of the mounting groove two is greater than the thickness of the limiting strip.
[0013] In the assembled state, the outer side of the arc-shaped top plate abuts against the inner side of the two arc-shaped plates on the same side.
[0014] Optionally, in the assembled state, the curved surface where the outer side of the arc-shaped plate is located has a spacing between the curved surface where the outer side of the half-pipe one and the half-pipe two is located, and the curved surface where the outer side of the arc-shaped plate is located is sleeved outside the half-pipe one and the half-pipe two.
[0015] Optionally, in the assembled state, a gap is formed between the two arc-shaped plates on the same side.
[0016] In summary, the present application has the following beneficial technical effects:
[0017] The embodiment of the present application is realized by using the relatively independent half-pipe one and the half-pipe two, after the shrinkage-compensating concrete is solidified, the operator can separate the inner restraint mechanism into the relatively independent half-pipe one and the half-pipe two by extracting the intermediate body, so that the operator can quickly remove the inner restraint mechanism from the hole of the concrete block in parts, thereby reducing the difficulty of the operator in removing the inner restraint mechanism and improving the disassembly efficiency of the operator. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is the overall assembly schematic diagram of an embodiment of the present application;
[0019] Figure 2is a schematic view of the top view of the overall assembly of an embodiment of the present application;
[0020] Figure 3 is a schematic view of the cylindrical structure of an embodiment of the present application;
[0021] Figure 4 is a schematic view of the top view of the cylindrical structure of an embodiment of the present application;
[0022] Figure 5 is a schematic view of the explosion of an embodiment of the present application.
[0023] Reference signs: 10, intermediate body; 11, first connecting part; 12, mounting groove one; 13, second connecting part; 14, mounting groove two;
[0024] 20, half pipe one;
[0025] 30, half pipe two;
[0026] 40, support one; 41, connecting plate; 42, stress block;
[0027] 50, support two; 51, arc-shaped top plate; 52, stress plate; 53, limiting strip;
[0028] 60, arc-shaped plate;
[0029] 70, plastic film. DETAILED DESCRIPTION
[0030] The following will be described in detail below in combination with the accompanying drawings Figure 1 - the accompanying drawings Figure 5 The present application will be further described in detail.
[0031] The embodiment of the present application provides an inner restraint mechanism for compensating shrinkage concrete, which comprises an intermediate body 10, and symmetrically distributed half pipe one 20 and half pipe two 30. The half pipe one 20 and the half pipe two 30 can be regarded as small half pipe parts corresponding to 170° central angle of the complete pipe part. The central axes of the half pipe one 20 and the half pipe two 30 are straight and parallel to each other. The central axes of the half pipe one 20 and the half pipe two 30 pass through the two end faces of the half pipe one 20 and the half pipe two 30. The opening directions of the half pipe one 20 and the half pipe two 30 in the lateral direction are opposite. The inner sides of the half pipe one 20 and the half pipe two 30 are fixedly connected with support one 40. The lateral opening ends of the half pipe one 20 and the half pipe two 30 are hingedly connected with arc-shaped plate 60.
[0032] The intermediate body 10 is strip-shaped and is located between half tube 20 and half tube 30. With the central axis of the strip-shaped intermediate body 10 as the baseline of symmetry, the outer side of the strip-shaped intermediate body 10 has two symmetrically arranged first connecting parts 11 and two symmetrically arranged second connecting parts 13. The ends of the two support members 40 are detachably connected to the two first connecting parts 11 of the intermediate body 10, and the two second connecting parts 13 of the intermediate body 10 are detachably connected to the support members 50.
[0033] In the assembled state, the arc plates 60 on half-pipe 1 20 and half-pipe 2 30 open, and half-pipe 1 20, half-pipe 2 30 and the four arc plates 60 form a columnar structure. The end of the support member 2 50 away from the intermediate body 10 abuts against the two arc plates 60 on the same side, and a plastic film 70 is sleeved on the outside of the columnar structure.
[0034] The following section will provide further details based on specific usage scenarios.
[0035] In use, the operator places half-pipe 20 and half-pipe 30 at the required grouting location, then places the strip-shaped intermediate body 10 between half-pipe 20 and half-pipe 30. Next, the ends of the two support members 40 on the inner side of half-pipe 20 and half-pipe 30 are respectively installed on the two first connecting parts 11 of the intermediate body 10. After the connection is completed, the positions of half-pipe 20, half-pipe 30 and intermediate body 10 are relatively fixed, and the outer surfaces of half-pipe 20 and half-pipe 30 are on the same annular curved surface.
[0036] After the main body is installed, the operator adjusts the position of the four arc-shaped plates 60 so that all four arc-shaped plates 60 are in an open state. That is, the annular curved surface where the outer side of the four arc-shaped plates 60 is located has the same central axis as the annular curved surface where the outer side of the two half-pipes is located. Then, the operator installs two support members 50, so that the two support members 50 are away from the end of the second connecting part 13 of the intermediate body 10 and abut against the four arc-shaped plates 60 at the two connecting points where the side openings of half-pipe 20 and half-pipe 30 are opposite. This makes half-pipe 20, half-pipe 30 and the four arc-shaped plates 60 form a columnar structure. After the installation of the two half-pipes and the four arc-shaped plates 60 is completed, the operator puts a plastic film 70 on the outside of the columnar structure to complete the grouting.
[0037] After solidification, the shrinkage of shrinkage-compensating concrete is much smaller than that of ordinary concrete, and the shrinkage rate of the inner hole diameter of the casting will also be much smaller than that of ordinary concrete. In other words, the connection between the internal constraint mechanism applied to shrinkage-compensating concrete and the solidified concrete is much tighter than that of ordinary concrete. After the concrete has solidified, the internal constraint mechanism used in this application only needs to pull the intermediate body 10 outward. The ends of the two support members 1 40 and the two support members 2 50 lose their fixed connection points, making the column structure unstable. This reduces the distance between the half-pipe 1 20 and the half-pipe 2 30 of the column structure, allowing the operator to gradually remove the half-pipe 1 20 and the half-pipe 2 30 and quickly dismantle the internal constraint mechanism.
[0038] In summary, the embodiments of this application utilize relatively independent half-pipe 20 and half-pipe 30. After the shrinkage-compensating concrete has solidified, the operator can extract the intermediate body 10 to divide the internal constraint mechanism of the column structure into relatively independent half-pipe 20 and half-pipe 30. This allows the operator to quickly and separately remove the internal constraint mechanism from the holes in the concrete block, reducing the difficulty of removing the internal constraint mechanism and improving the disassembly efficiency.
[0039] The support member 40 is detachably connected to the first connecting portion 11 of the intermediate body 10. In one possible implementation of this application embodiment, the first connecting portion 11 has a strip-shaped mounting groove 12. The central axis of the mounting groove 12 and the first connecting portion 11 is parallel to the central axis of the intermediate body 10. The end of the support member 40 is inserted into the mounting groove 12. The support member 40 includes a connecting plate 41 fixedly connected to half-pipe 20 or half-pipe 30. The end of the connecting plate 41 is fixedly connected to the end face of the stress block 42. The width of the end face is greater than the thickness of the connecting plate 41. In the assembled state, the stress block 42 is inserted into the mounting groove 12. When in use, the operator first places two half tubes, and then aligns the mounting groove 12 on the strip-shaped intermediate body 10 with the stress block 42 of the support member 40. The installation method is simple. After disassembly, the operator only needs to pull out the intermediate body 10 to make the half tube 20 and the half tube 30 independent of each other, which reduces the difficulty of disassembling the internal constraint mechanism and improves the disassembly efficiency of the operator.
[0040] The second support member 50 is detachably connected to the second connecting portion 13 of the intermediate body 10. In one possible implementation of this application embodiment, a strip-shaped mounting groove 14 is provided on the second connecting portion 13. The central axis of the mounting groove 14 and the second connecting portion 13 is parallel to the central axis of the intermediate body 10. The end of the second support member 50 is inserted into the mounting groove 14. The second support member 50 includes an arc-shaped top plate 51. A stress plate 52 is fixedly connected to the inner side of the arc-shaped top plate 51. A limiting strip 53 is fixedly connected to the end of the stress plate 52 away from the arc-shaped top plate 51. The limiting strip 53 is inserted into the mounting groove 14. The thickness of the stress plate 52 is greater than the width of the mounting groove 14. The width is greater than the thickness of the limiting strip 53. In the assembled state, the outer side of the arc-shaped top plate 51 abuts against the inner side of the two arc-shaped plates 60 on the same side. After the operator completes the installation of the two half-pipes and the intermediate body 10, the four arc-shaped plates 60 are all in the open state. Then, the limiting strip 53 of the support member 2 50 is inserted into the installation groove 2 14. The end of the limiting strip 53 away from the arc-shaped top plate 51 is in close contact with the inner wall of the installation groove 2 14. The arc-shaped top plate 51 abuts against the inner side of the arc-shaped plate 60, so that the internal constraint mechanism forms a columnar mechanism. When disassembly is required, the operator can remove the support member 2 50 to relax the arc-shaped plate 60 so that the operator can disassemble the internal constraint mechanism.
[0041] In some possible implementations of this application, in the assembled state, there is a gap between the outer surface of the arc plate 60 and the outer surfaces of the first half-pipe 20 and the second half-pipe 30. The outer surface of the arc plate 60 surrounds the first half-pipe 20 and the second half-pipe 30. In this way, after the concrete solidifies, the concrete on the outside of the arc plate 60 is concave to form a pit, which provides clearance for the disassembly of the internal constraint mechanism, reduces the difficulty of disassembling the internal constraint mechanism for the operator, and improves the disassembly efficiency of the operator. In addition, there is a gap between the two arc plates 60 on the same side, so that the plastic film 70 can be partially embedded between the two arc plates 60, thereby keeping the outer side of the plastic film 70 in a taut state. While improving the quality of the inner hole wall of the concrete component, it also improves the smoothness of the internal constraint during the disassembly process.
[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An internal restraint mechanism for compensating shrinkage concrete, characterized in that, It includes an intermediate body (10) and symmetrically distributed half-pipe one (20) and half-pipe two (30). The side openings of half-pipe one (20) and half-pipe two (30) are opposite to each other. Support member one (40) is fixedly connected to the inner side of half-pipe one (20) and half-pipe two (30). Arc plate (60) is hinged to both ends of the side openings of half-pipe one (20) and half-pipe two (30). The intermediate body (10) is strip-shaped and is located between half tube one (20) and half tube two (30). The strip-shaped intermediate body (10) has two symmetrically arranged first connecting parts (11) and two symmetrically arranged second connecting parts (13) on its outer side. The ends of the two support members one (40) are detachably connected to the two first connecting parts (11) of the intermediate body (10) respectively. Support members two (50) are detachably connected to the two second connecting parts (13) of the intermediate body (10). In the assembled state, the arc plates (60) on half tube one (20) and half tube two (30) are opened, and half tube one (20), half tube two (30) and four arc plates (60) form a columnar structure. The end of the support member two (50) away from the intermediate body (10) abuts against the two arc plates (60) on the same side, and a plastic film (70) is sleeved on the outside of the columnar structure.
2. The internal restraint mechanism for compensating shrinkage concrete according to claim 1, characterized in that, The first connecting part (11) has a strip-shaped mounting groove (12). The central axis of the mounting groove (12) and the first connecting part (11) is parallel to the central axis of the intermediate body (10). The end of the support member (40) is inserted into the mounting groove (12).
3. The internal restraint mechanism for compensating shrinkage concrete according to claim 2, characterized in that, Support component 1 (40) includes a connecting plate (41) fixedly connected to half pipe 1 (20) or half pipe 2 (30). A stress block (42) is fixedly connected to the end of the connecting plate (41). The end face width of the stress block (42) is greater than the thickness of the connecting plate (41). In the assembled state, the stress block (42) is inserted into the mounting groove 1 (12).
4. The internal restraint mechanism for compensating shrinkage concrete according to claim 1, characterized in that, The second connecting part (13) has a strip-shaped mounting groove (14). The central axis of the mounting groove (14) and the second connecting part (13) is parallel to the central axis of the intermediate body (10). The end of the support member (50) is inserted into the mounting groove (14).
5. The internal restraint mechanism for compensating shrinkage concrete according to claim 2, characterized in that, Support component two (50) includes an arc-shaped top plate (51), a stress plate (52) is fixedly connected to the inner side of the arc-shaped top plate (51), a limiting strip (53) is fixedly connected to one end of the stress plate (52) away from the arc-shaped top plate (51), the limiting strip (53) is inserted into the second mounting groove (14), the thickness of the stress plate (52) is greater than the width of the second mounting groove (14), and the width of the second mounting groove (14) is greater than the thickness of the limiting strip (53); In the assembled state, the outer side of the arc-shaped top plate (51) abuts against the inner side of the two arc-shaped plates (60) on the same side.
6. The internal restraint mechanism for compensating shrinkage concrete according to claim 1, characterized in that, In the assembled state, there is a gap between the outer surface of the arc plate (60) and the outer surfaces of half tube one (20) and half tube two (30), and the outer surface of the arc plate (60) is wrapped around half tube one (20) and half tube two (30).
7. The internal restraint mechanism for compensating shrinkage concrete according to claim 1, characterized in that, In the assembled state, there is a gap between the two arc-shaped plates (60) on the same side.