Inspection well lifting inner mold supporting device
By using a support device that combines cylindrical airbags and thick rubber rings with long strips of sheet metal, the problems of cumbersome and shifting traditional internal mold support methods are solved, achieving quick and stable support for the manhole internal mold and ensuring the concrete pouring effect.
Patent Information
- Application Number
- CN202422076230.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Traditional internal formwork support methods are cumbersome and prone to displacement and grout leakage when lifting and pouring concrete in inspection wells, resulting in low construction efficiency and poor results.
The support device uses a cylindrical airbag and a thick rubber ring combined with a long strip of iron. After the airbag is inflated, it fits tightly against the inner wall of the inspection well. The rubber ring abuts against the well ring, and the long strip of iron is bent into a circle for fixation. It is then fixed with bolts and nuts to form a stable support structure.
It achieves quick and labor-saving support, prevents concrete leakage, provides uniform support force, avoids displacement of the inner formwork, and improves construction efficiency and quality.
Smart Images
Figure CN223660994U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to municipal works field especially, and it relates to a manhole lifting inner mold support device. BACKGROUND
[0002] After the road paving is completed, the manhole opening position needs to be repositioned, the road structure around the manhole is broken, the manhole is lifted, then the concrete is poured around the manhole, finally the manhole cover is installed on the manhole ring, so that the manhole cover is flush with the road surface. When the manhole is lifted and the concrete is poured, an inner mold needs to be erected in the manhole, and a wooden strip is used as an inner support to hold the inner mold. The current traditional inner mold support method is not only cumbersome to erect, but also prone to displacement and concrete leakage, which needs to be improved. SUMMARY
[0003] The problem to be solved by the present application is to overcome the shortcomings of the background art and provide a manhole lifting inner mold support device.
[0004] The present application is achieved by the following technical solutions:
[0005] A manhole lifting inner mold support device, comprising a cylindrical air bag, the maximum diameter of the cylindrical air bag after inflation is not less than the inner diameter of the manhole, a inflation nozzle is arranged on the upper surface of the cylindrical air bag, a thick rubber ring is integrally connected to the upper end of the cylindrical air bag, and the outer diameter of the thick rubber ring is equal to the inner diameter of the manhole; further comprising a long strip of iron, the long strip of iron has a plurality of adjusting holes at one end and a fixing bolt at the other end, the long strip of iron can be bent into a loop, the fixing bolt passes through the adjusting hole and fixes the loop formed by the bending of the long strip of iron through a nut, and the length of the long strip of iron is greater than the circumference of the inner circle of the thick rubber ring.
[0006] Preferably, the height of the cylindrical air bag is 40-50 cm.
[0007] Preferably, the height of the thick rubber ring is 10-15 cm.
[0008] Preferably, the width of the long strip of iron is 10-15 cm.
[0009] Preferably, the thick rubber ring is a rubber ring.
[0010] The manhole lifting inner mold support device of the present application is fast and time-saving, and the thick rubber ring can prevent the poured concrete from leaking into the manhole at the junction of the manhole ring and the manhole, has good sealing performance, and the device has uniform support force and is not prone to displacement when pouring concrete. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structure schematic view for use of the present embodiment;
[0012] Figure 2 It is a structure schematic view for use of the present embodiment;
[0013] Figure 3 The schematic diagram of the cylindrical air bag structure of the embodiment;
[0014] Figure 4 The schematic diagram of the long strip iron structure of the embodiment.
[0015] In the figure, 1 is a well circle, 2 is a cylindrical air bag, 3 is an inflation nozzle, 4 is a thick rubber ring, 5 is a long strip iron, 6 is an adjusting hole, 7 is a fixing bolt, and 8 is a nut. DETAILED DESCRIPTION
[0016] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application.
[0017] The embodiment includes a cylindrical air bag 2, the maximum diameter of which after inflation is not less than the inner diameter of the inspection well, that is, the cylindrical air bag 2 can fill the space in the inspection well after being inflated and inserted into the inspection well. Preferably, the maximum diameter of the cylindrical air bag 2 after inflation is slightly larger than the inner diameter of the inspection well by 1-3 cm. An inflation nozzle 3 is arranged at the middle position of the upper surface of the cylindrical air bag 2, through which the cylindrical air bag 2 is inflated. Preferably, the height of the cylindrical air bag 2 is between 40-50 cm.
[0018] A thick rubber ring 4 is integrally connected to the upper end of the cylindrical air bag 2 in the circumferential direction, and the outer diameter of the thick rubber ring 4 is equal to the inner diameter of the inspection well. The thick rubber ring 4 can be just put into the inspection well and tightly abut against the inner wall of the inspection well, or the outer diameter of the thick rubber ring 4 can be slightly larger than the inner diameter of the inspection well, for example, the outer diameter of the thick rubber ring 4 is 0.5-1 cm larger than the inner diameter of the inspection well, so that the thick rubber ring 4 can abut against the inner wall of the inspection well more tightly. Preferably, the thick rubber ring 4 is made of a rubber ring with a thickness of 5 cm. Preferably, the height of the thick rubber ring 4 is 10-15 cm.
[0019] Also included is a long strip iron 5 placed in the thick rubber ring 4, which is bent into a circle and unfolded into a rectangle, used to further support the thick rubber ring 4. The width of the long strip iron 5 is preferably 10-15 cm, i.e. the height of the long strip iron 5 after being bent into a circle is the same as the height of the thick rubber ring 4. A plurality of adjusting holes 6 are provided at one end of the long strip iron 5, and a fixing bolt 7 is provided at the other end, which can pass through the adjusting holes 6, and a matching nut 8 is provided on the fixing bolt 7. When the long strip iron 5 is bent into a circle, the bolt is passed through the adjusting holes 6, and then the nut 8 is used to fix the long strip iron 5 bent into a circle. Since the long strip iron 5 is used to support the thick rubber ring 4, the length of the long strip iron 5 is greater than the circumference of the inner circle of the thick rubber ring 4, so that the long strip iron 5 can be bent into a circle with an outer diameter equal to the inner diameter of the thick rubber ring 4 to support the thick rubber ring 4. The long strip iron 5 can be adjusted according to the inner diameter of the thick rubber ring 4, or the outer diameter of the long strip iron 5 bent into a circle can be slightly larger than the inner diameter of the thick rubber ring 4, so that the long strip iron 5 exerts a pressing force on the thick rubber ring 4.
[0020] In use, after the outer peripheral pavement structure layer of the inspection well is broken and the reinforcement is bound, the well ring 1 is placed on the inspection well, and then the cylindrical air bag 2 is placed in the inspection well, so that the outer wall of the thick rubber ring 4 is approximately in the middle position and abuts against the joint between the well ring 1 and the inspection well, which is equivalent to sealing the joint between the well ring 1 and the inspection well, and also providing a support to the inside of the well ring 1. Then, the cylindrical air bag 2 is inflated through the inflation nozzle 3, so that the cylindrical air bag 2 tightly abuts against the inside of the inspection well, and thus the position of the thick rubber ring 4 is fixed. Then, the long strip iron 5 is bent into a circle inside the thick rubber ring 4, and the long strip iron 5 bent into a circle tightly abuts against the inner wall of the thick rubber ring 4. After the diameter of the long strip iron 5 bent into a circle is adjusted, the fixing bolt 7 is passed through the corresponding adjusting hole 6 to fix the long strip iron 5 bent into a circle, which further supports the thick rubber ring 4, and the support inside the inspection well is completed. Finally, the concrete is poured outside the inspection well.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limiting. Those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some technical features can be replaced by equivalents. Such modifications or replacements do not change the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A support device for lifting the inner mold of a manhole, characterized in that: It includes a cylindrical airbag (2), the maximum diameter of the cylindrical airbag (2) after inflation is not less than the inner diameter of the inspection well, an inflation nozzle (3) is provided on the upper surface of the cylindrical airbag (2), and a thick rubber ring (4) is integrally connected to the upper end of the cylindrical airbag (2) around the circumference. The outer diameter of the thick rubber ring (4) is equal to the inner diameter of the inspection well. It also includes a long strip of iron sheet (5), one end of the long strip of iron sheet (5) is provided with several adjustment holes (6), and the other end is provided with a fixing bolt (7). The long strip of iron sheet (5) can be bent into a circle. The fixing bolt (7) passes through the adjustment hole (6) and is fixed by the nut (8) to the circle formed by bending the long strip of iron sheet (5). The length of the long strip of iron sheet (5) is greater than the inner circumference of the thick rubber ring (4).
2. The manhole lifting inner mold support device according to claim 1, characterized in that: The cylindrical airbag (2) is 40-50cm high.
3. The manhole lifting inner mold support device according to claim 1, characterized in that: The height of the thick rubber ring (4) is 10-15cm.
4. The manhole lifting inner mold support device according to claim 1, characterized in that: The long strip of iron (5) is 10-15cm wide.
5. The manhole lifting inner mold support device according to claim 1, characterized in that: The thick rubber ring (4) is a rubber ring.