CN218292172U - Concrete drainage inspection shaft with built-in temporary fixing device - Google Patents
Concrete drainage inspection shaft with built-in temporary fixing device Download PDFInfo
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- CN218292172U CN218292172U CN202222311247.8U CN202222311247U CN218292172U CN 218292172 U CN218292172 U CN 218292172U CN 202222311247 U CN202222311247 U CN 202222311247U CN 218292172 U CN218292172 U CN 218292172U
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- fixing device
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Abstract
The utility model relates to the technical field of building construction, be a concrete drainage inspection shaft with built-in temporary fixing device particularly, including well lid, bottom plate and pit shaft, the bottom plate on be equipped with annular boss, the pit shaft sets up in the recess that annular boss constitutes, the recess in be equipped with a plurality of pre-buried steel rings, pre-buried steel ring one end is pre-buried in the bottom plate, the other end extends the bottom plate, restricts pit shaft horizontal direction position, annular boss on be equipped with the reinforcing bar built-in fitting, reinforcing bar built-in fitting one end is pre-buried in the bottom plate, the other end is connected with the nut that sets up the well lid top at the pit shaft top through the pull rod, reinforcing bar built-in fitting, pull rod and nut jointly fix bottom plate, pit shaft and well lid, the pre-buried steel ring outside bottom plate and the pit shaft can restrict the displacement of prefabricated section; the temporary fixing device can apply prestress to each prefabricated block before the adhesive between the prefabricated blocks is hardened, and can be used for backfilling in time.
Description
Technical Field
The utility model relates to a construction technical field is a concrete drainage inspection shaft with built-in interim fixing device particularly.
Background
Under the condition that the drainage pipeline groove needs to be refilled in time, the construction progress condition of the drainage inspection well becomes a key factor influencing the construction progress. Plastic prefabricated inspection wells have been available for smaller sized inspection wells, and their use has been limited for larger sizes and higher ground loads. Therefore, a large precast concrete drainage inspection well with a built-in temporary fixing device needs to be designed, can be rapidly assembled on a construction site, and is short in assembly time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the less problem of current inspection shaft size, provide a concrete drainage inspection shaft with built-in interim fixing device, can conveniently assemble.
In order to realize the purpose, a concrete drainage inspection well with a built-in temporary fixing device is designed, the concrete drainage inspection well comprises a well cover, a bottom plate and a shaft, wherein the bottom plate is provided with an annular boss, the shaft is arranged in a groove formed by the annular boss, the groove is internally provided with a plurality of embedded steel rings, one end of each embedded steel ring is embedded in the bottom plate, the other end of each embedded steel ring extends out of the bottom plate to limit the horizontal direction position of the shaft, the annular boss is provided with a steel bar embedded part, one end of each steel bar embedded part is embedded in the bottom plate, the other end of each steel bar embedded part is connected with a nut arranged above the well cover at the top of the shaft through a pull rod, and the steel bar embedded parts, the pull rod and the nut jointly fix the bottom plate, the shaft and the well cover.
The utility model discloses still have following preferred technical scheme:
1. the top of the well lid is provided with a pressing plate, and the nut is arranged on the pressing plate.
2. The shaft is composed of a plurality of sections, and each section is bonded through waterproof mortar and cement mortar bonding agent.
3. Polysulfide sealant is arranged between the boss of the bottom plate and the shaft.
Compared with the prior art, the utility model, its advantage lies in:
1. the factory prefabrication and field assembly are adopted, so that the construction time is short;
2. steel rings are embedded in the bottom plate and the outer side of the shaft, so that the displacement of the precast block can be limited; the temporary fixing device can apply prestress to each precast block before the adhesive between the precast blocks is hardened, so that the precast blocks can be used for backfilling in time;
3. the pressure resistance and the deformation resistance of the shaft are strong.
Drawings
FIG. 1 is a schematic view of the components of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is an enlarged view of portion C of FIG. 1; a (c)
Fig. 5 is a top view of the present invention;
fig. 6 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 5 in accordance with the present invention;
fig. 7 is a cross-sectional view B-B of fig. 5 in accordance with the present invention;
fig. 8 is a cross-sectional view of fig. 5, taken along line C-C, in accordance with the present invention;
in the figure: 1. the well cover comprises a base plate 2, a first well casing section 3, a second well casing section 4, a third well casing section 5, a well cover 6, a steel bar embedded part 7, a pressing plate 8, a nut 9, a pull rod 10, polysulfide sealant 11, waterproof mortar 12, a cement mortar adhesive 13 and an embedded steel ring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the structure and principle of the present invention will be clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model relates to a concrete drainage inspection shaft with built-in interim fixing device, each position constitutes as follows:
1. in the figure, a bottom plate, a first well cylinder section, a second well cylinder section, a third well cylinder section and a well cover are prefabricated reinforced concrete well bodies in blocks to form a main body of the reinforced concrete inspection well.
2. The temporary fixing device is composed of the steel bar embedded parts, the pressing plates, the nuts and the pull rods, and the precast concrete well body is fixed in the assembling and groove backfilling processes of the precast inspection well.
3. Waterproof mortar, cement mortar adhesive and polysulfide sealant are used for bonding the gaps between the prefabricated blocks.
The specific parts have the following functions:
1. the bottom plate is provided with an annular boss, the height of the annular boss is 150mm, the width of the annular boss is 200mm, 4 steel bar embedded parts are embedded in the boss and evenly distributed along the boss, the first wellbore section is arranged in a groove formed by the annular boss, polysulfide sealant is filled between the annular boss and the first wellbore section, a plurality of embedded steel rings are arranged in the groove, one ends of the embedded steel rings are embedded in the bottom plate, and the other ends of the embedded steel rings extend out of the bottom plate to limit the position of the first wellbore section in the horizontal direction.
2. The lower end of the first well barrel section is provided with a bellmouth along the outer ring, the height of the bellmouth is 120mm, the thickness of the bellmouth is 15mm, and the bellmouth is shown in detail in figure 2; the steel ring is anchored at the upper end of the first well barrel section, and when the steel ring meets a reserved hole of a pipeline, the steel ring N is cut off.
3. The lower end of the second well barrel section is provided with a bellmouth along the outer ring, the height is 120mm, the thickness is 15mm, and the details are shown in figure 2; the inner ring is provided with a V-shaped notch, see the detailed drawing 3; and a steel ring is anchored at the upper end of the second well barrel section.
4. The lower end of the third well cylinder section is provided with a bellmouth along the outer ring, the height is 120mm, the thickness is 15mm, and the detailed view is shown in figure 2; the inner ring is provided with a V-shaped notch, see detail figure 3; the upper end of the third well cylinder section is provided with a V-shaped notch, see detail figure 4.
5. 4 holes with the diameter of 30mm are reserved on the well cover and used for penetrating the pull rod D. The four holes correspond to the positions of the steel bar embedded parts.
6. The embedded part of the steel bar is made of round steel with the diameter of 20mm and is anchored on the bottom plate.
7. The press plate is made of a steel plate with the thickness of 20mmQ235 and the plane size is 200mm multiplied by 200mm.
8. The nut transmits the pulling force of the pull rod to the well lid through the pressing plate.
9. The pull rod is made of finish-rolled threads with the diameter of 20mm and used for providing tension so as to temporarily fix the reinforced concrete prefabricated blocks together.
10. The polysulfide sealant and the waterproof mortar are used for preventing water in the inspection well from leaking outwards and polluting the environment.
11. The cement mortar adhesive bonds the precast reinforced concrete blocks and fills gaps between the precast blocks.
12. The embedded steel ring between the bottom plate and the first well barrel section is made of a steel plate with the thickness of 10mmQ235, the height of the steel plate is 150mm, the diameter of an outer ring is the same as that of a well shaft of the inspection well, a steel bar anchoring rib is welded at the lower end of the steel ring, and the steel ring is embedded into the bottom plate of the inspection well for 50mm and exposed for 100mm. The wellbore is positioned and horizontal movement is limited.
13. The embedded steel rings between the shaft sections are made of steel plates with the thickness of 10mmQ235, the height of the embedded steel rings is 200mm, the diameter of the outer ring is the same as that of the shaft of the inspection well, the lower end of the embedded steel rings is anchored to the shaft concrete for 100mm and exposed for 100mm, and therefore positioning basis is provided for the upper section of the shaft and horizontal movement of the shaft is limited.
Claims (4)
1. The utility model provides a concrete drainage inspection shaft with built-in interim fixing device, includes well lid, bottom plate and pit shaft, its characterized in that: the bottom plate on be equipped with annular boss, the pit shaft sets up in the recess that annular boss constitutes, the recess in be equipped with a plurality of pre-buried steel rings, pre-buried steel ring one end is pre-buried in the bottom plate, the other end extends the bottom plate, restriction pit shaft horizontal direction position, annular boss on be equipped with the reinforcing bar built-in fitting, reinforcing bar built-in fitting one end is pre-buried in the bottom plate, the other end passes through the pull rod and is connected with the nut that sets up the well lid top at pit shaft top, reinforcing bar built-in fitting, pull rod and nut jointly fixed bottom plate, pit shaft and well lid.
2. The concrete drainage manhole with built-in temporary fixing device of claim 1, wherein: the top of the well lid is provided with a pressing plate, and the nut is arranged on the pressing plate.
3. The concrete drainage manhole with built-in temporary fixing device of claim 1, wherein: the shaft is composed of a plurality of sections, and each section is bonded through waterproof mortar and cement mortar bonding agent.
4. The concrete drainage manhole with built-in temporary fixing device of claim 1, wherein: and polysulfide sealant is arranged between the boss of the bottom plate and the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222311247.8U CN218292172U (en) | 2022-08-31 | 2022-08-31 | Concrete drainage inspection shaft with built-in temporary fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222311247.8U CN218292172U (en) | 2022-08-31 | 2022-08-31 | Concrete drainage inspection shaft with built-in temporary fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218292172U true CN218292172U (en) | 2023-01-13 |
Family
ID=84811312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222311247.8U Active CN218292172U (en) | 2022-08-31 | 2022-08-31 | Concrete drainage inspection shaft with built-in temporary fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218292172U (en) |
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2022
- 2022-08-31 CN CN202222311247.8U patent/CN218292172U/en active Active
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