CN218479473U - Assembly type structure for air duct at top of underground station rail - Google Patents
Assembly type structure for air duct at top of underground station rail Download PDFInfo
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- CN218479473U CN218479473U CN202222293592.3U CN202222293592U CN218479473U CN 218479473 U CN218479473 U CN 218479473U CN 202222293592 U CN202222293592 U CN 202222293592U CN 218479473 U CN218479473 U CN 218479473U
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- screw rod
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Abstract
The utility model discloses an assembled structure for a track top air duct of an underground station, which comprises a bottom plate, a screw rod and a nut; the two ends of the bottom plate are respectively provided with an operation hole, a plurality of screws are arranged, and the number of the nuts is matched with that of the screws; the fixed end of the screw is embedded in the hanging wall and the side wall respectively, and the free end of the screw penetrates into the operation hole; and after the free end of the screw rod penetrates to the bottom of the operation hole, the screw rod is screwed by the nut, and cement mortar is poured into the operation hole. The utility model has the advantages that: the device has the advantages of simple structure, convenience in installation and use, batch operation, and capability of quickly assembling the bottom plate of the air duct at the top of the rail of the underground station and reducing the construction period.
Description
Technical Field
The utility model relates to a construction technical field especially relates to an assembled structure that is used for subway station rail top wind channel.
Background
In recent years, with the rapid development of cities, the construction of rail transit is further accelerated, and large cities are willing to construct more subways, urban rails and the like for further expansion, but underground stations with large investment are mainly adopted for not influencing the appearance of cities in cities. In the structure construction process of an underground station, the construction of an air duct bottom plate, a hanging wall plate and a middle plate is an important component, and at present, the construction method mainly comprises a hanging wall cast-in-place bottom plate prefabricating scheme, a hanging type air duct scheme, a full-assembly type steel structure air duct scheme and a full-assembly type prefabricated concrete plate air duct scheme. The suspended air pipe has limited service life and high maintenance cost; the fully assembled steel structure air duct has high corrosion resistance requirement, large engineering quantity, low fireproof performance and high maintenance cost; the vertical atress node in prefabricated concrete slabs wind channel of full assembled requires highly, and the process is many and miscellaneous, and the installation accuracy requires highly, and installation space is also limited to some extent. Relatively speaking, the prefabricated scheme of the wall-hung cast-in-place bottom plate is reasonable, the popularization is high, and the overall structure is close to that of a complete cast-in-place structure. The concrete bracket is reserved to the lower string of wall bottom of more adoption in the market and through expansion bolts fixed + cement mortar joint filling connection, can bring the wholeness not high like this, and it is higher to bring the uncertainty for later stage fortune dimension, also increases the reinforced concrete material cost of string wall bottom and bracket simultaneously, can not fully embody the green's of assembled characteristics.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above-mentioned prior art not enough, providing an assembled structure that is used for subway station rail top wind channel.
The utility model discloses a realize through following technical scheme: an assembled structure for an air duct at the top of a track of an underground station comprises a bottom plate, a screw rod and a nut; the two ends of the bottom plate are respectively provided with an operation hole, a plurality of screws are arranged, and the number of the nuts is matched with that of the screws; the fixed end of the screw is embedded in the hanging wall and the side wall respectively, and the free end of the screw penetrates into the operation hole; and after the free end of the screw rod penetrates to the bottom of the operation hole, the screw rod is screwed by the nut, and cement mortar is poured into the operation hole.
The screw rod is matched with the operation hole for use, so that the bottom plate can be detachably installed and fixed; the bottom plate can be locked through the screw rod by the matching of the nut and the screw rod. Cement mortar is cast in the operation hole, so that the screw and the nut can be sealed, and the bottom plate can be fixed.
The operation hole comprises a first operation groove and a second operation groove; the second operation groove is positioned on the inner side of the bottom plate, the upper end of the second operation groove penetrates through the upper side surface of the bottom plate, and the lower end surface of the second operation groove is positioned in the bottom plate; the first operation groove comprises a vertical groove and a horizontal groove; the upper side of the vertical groove penetrates through the upper side surface of the bottom plate, and the lower side of the vertical groove is communicated with the horizontal groove; one side of the vertical groove penetrates through the outer side wall of the bottom plate, and the other side of the vertical groove is communicated with the second operation groove; the horizontal groove is positioned in the bottom plate, one end of the horizontal groove penetrates through the outer side wall of the bottom plate, and the other side of the horizontal groove is communicated with the second operation groove; the section of the first operation groove cut along the longitudinal direction is an L-shaped section; the bottom plate is lifted to an installation position, the screw rod descends to a position communicated with the horizontal groove from the vertical groove and moves the bottom plate, so that the screw rod is clamped in the horizontal groove; the nut is positioned in the second operation groove and screwed tightly on the screw rod. The screw rod is clamped into the horizontal groove from the vertical groove, and the bottom plate can be clamped and fixed.
The bottom plate is a fully prefabricated concrete slab. The bottom plate of the fully prefabricated concrete plate can be manufactured in batches, on-site wet operation is reduced, on-site labor is saved, seasonal influences are overcome, and the construction period of a building is shortened.
The cement mortar adopts high-grade cement mortar.
Two working holes are respectively formed in the two ends of the bottom plate, and the working holes in the two ends are opposite in position. Two ends of the bottom plate are respectively provided with two operation holes, so that enough supporting force can be provided for the bottom plate, and the operation holes at the two ends are opposite in position, so that the stress is balanced.
Compared with the prior art, the utility model has the advantages of: the device has the advantages of simple structure, convenience in installation and use, batch operation, and capability of quickly assembling the bottom plate of the air duct at the top of the rail of the underground station and reducing the construction period.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
fig. 4 is a top view of an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a side view direction according to an embodiment of the present invention.
The reference numerals in the drawings mean: 1. a base plate; 2. a screw; 3. a nut; 4. a first working tank; 51. a vertical slot; 52. a horizontal groove; 6. hanging a wall; 7. and a side wall.
Detailed Description
The following detailed description of the present invention is made with reference to the accompanying drawings.
Examples
Referring to fig. 1 to 5, the assembled structure for the rail top duct of the underground station includes a bottom plate 1, a screw rod 2 and a nut 3; the two ends of the bottom plate 1 are respectively provided with an operation hole, the number of the screw rods 2 is multiple, and the number of the nuts 3 is matched with that of the screw rods 2; the fixed end of the screw rod 2 is respectively embedded in the hanging wall 6 and the side wall 7, and the free end of the screw rod 2 penetrates into the operation hole; and after the free end of the screw rod 2 penetrates to the bottom of the operation hole, the screw rod is screwed by the nut 3, and cement mortar is poured into the operation hole.
The screw rod 2 is matched with the operation hole for use, and the bottom plate 1 can be detachably installed and fixed; the matching of the nut 3 and the screw rod 2 can lock the bottom plate 1 through the screw rod 2. Cement mortar is poured into the operation hole, so that the screw rod 2 and the nut 3 can be sealed, and the fixing of the bottom plate 1 is guaranteed.
The operation hole comprises a first operation groove 4 and a second operation groove; the second operation groove is positioned at the inner side of the bottom plate 1, the upper end of the second operation groove penetrates through the upper side surface of the bottom plate 1, and the lower end surface of the second operation groove is positioned in the bottom plate 1; the first working tank 4 includes a vertical tank 51 and a horizontal tank 52; the upper side of the vertical slot 51 penetrates the upper side surface of the bottom plate 1, and the lower side thereof is communicated with the horizontal slot 52; one side of the vertical groove 51 penetrates through the outer side wall of the bottom plate 1, and the other side thereof is communicated with the second working groove; the horizontal groove 52 is positioned inside the bottom plate 1, one end of the horizontal groove 52 penetrates through the outer side wall of the bottom plate 1, and the other side of the horizontal groove is communicated with the second working groove; the section of the first operation groove 4 cut along the longitudinal direction is an L-shaped section; the bottom plate 1 is lifted to the installation position, the screw rod 2 descends to a position communicated with the horizontal groove 52 from the vertical groove 51 and moves the bottom plate 1, so that the screw rod 2 is clamped in the horizontal groove 52; the nut 3 is positioned in the second operation groove to screw the screw rod 2. The screw rod 2 is clamped into the horizontal groove 52 from the vertical groove 51, so that the bottom plate 1 can be clamped and fixed.
The bottom plate 1 is a fully prefabricated concrete plate. The bottom plate 1 of the fully prefabricated concrete plate can be manufactured in batch, the field wet operation is reduced, the field labor is saved, the seasonal influence is overcome, and the building construction period is shortened.
The cement mortar adopts high-grade cement mortar.
Two ends of the bottom plate 1 are respectively provided with two operation holes, and the operation holes at the two ends are opposite in position. Two ends of the bottom plate 1 are respectively provided with two operation holes, so that enough supporting force can be provided for the bottom plate 1, and the operation holes at the two ends are opposite in position, so that the stress can be balanced.
The structure of this embodiment for hang wall 6, side wall 7 and medium plate cast-in-place simultaneously, hang wall 6, the pre-buried screw rod 2 of 7 bottom end positions of side wall, bottom plate 1 adopts complete prefabricated formula bottom plate 1 (complete prefabricated concrete slabs), and it reserves the operation hole that screw rod 2 penetrated and nut 3 fastenings, promotes to the installation site and makes screw rod 2 penetrate and reserve hole department with the help of rail mounted sliding tool lift truck, and the lift truck that can slide this moment is smooth to next operation unit, reserves the hole at last and pours into high-grade grout into in bottom plate 1.
The specific process flow is as follows:
the hanging wall 6 and the middle plate are cast in situ simultaneously, and the screw rods 2 used for connecting the bottom plate 1 are respectively embedded during construction of the hanging wall 6 and the side walls 7. The bottom plate 1 is a fully prefabricated concrete plate, and four hole sites convenient for the penetration of the screw rod 2 and the fastening operation of the nut 3 are reserved. During the installation, with the help of rail mounted sliding tool lift truck with prefabricated bottom plate 1 to mounting height, pre-buried screw rod 2 is worn to the hole bottom from the hole that reserves to be used for screw rod 2 to penetrate, then forward sliding lift truck to mounted position, is reserving 3 fastening operation hole sites of nut and is tightening hexagon nut 3, can slide rail mounted sliding tool lift truck this moment to next operation unit, reserves the hole at bottom plate 1 at last and pours into high-grade grout into.
In the present embodiment, although not being a design point of the present application, a plurality of terms are used, the terms are given as follows.
Mortar: the binding material for building bricks is made up of sand and cementing material (cement, lime paste, clay, etc.) through mixing with water, and is also called mortar. The mortar is prepared by mixing a cementing material (cement, lime, clay and the like) and fine aggregate (sand) with water. Cement mortars, mixed mortars (or cement lime mortars), lime mortars and clay mortars are commonly used.
The cement mortar is usually used for waterproofing, the strength of the cement mortar is stronger than that of mixed mortar, but the mixed mortar is used for waterproofing under plus or minus 0.000 in masonry and mixed mortar is used in basement, and the strength is small if the mixed mortar is common. The mortar has the marks of M3, M5, M7.5, M10, M12.5, M15, M20, M25, M30 and M40. The mortar is divided into masonry, plastering and joint according to the application, and is irrelevant to the grade. It must be said that the higher grade is used only where the higher strength points of the mortar are required, and vice versa, which is not really well explained. The cement mortar having a designation M15 or more is generally called high-designation cement mortar.
High grade cement mortar is an indicator of the "strength" of the cement. The strength of cement is the strength of a unit area, and refers to the firmness degree of cement after coagulation and hardening after being mixed with water (the strength of cement is related to factors such as mineral components forming the cement, the fineness of particles, the temperature and humidity during hardening, the proportion of water in the cement, and the like). The strength of cement is an index for determining the grade of cement and is also a main basis for selecting cement. The high-grade cement has high strength, large hydration heat when the cement mortar is coagulated, high shrinkage deformation and easy cracking. At this time, the water in the ceramic tile of the surface layer is excessively absorbed to cause the ceramic tile to be pulled apart, namely to be torn.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.
Claims (5)
1. The utility model provides an assembled structure that is used for subway station rail top wind channel which characterized in that: comprises a bottom plate, a screw rod and a nut; the two ends of the bottom plate are respectively provided with an operation hole, a plurality of screws are arranged, and the number of the nuts is matched with that of the screws; the fixed end of the screw is respectively embedded in the hanging wall and the side wall, and the free end of the screw penetrates into the operation hole; and after the free end of the screw rod penetrates to the bottom of the operation hole, the screw rod is screwed by the nut, and cement mortar is poured into the operation hole.
2. The fabricated construction for a subway station rail cap tunnel according to claim 1, wherein: the operation hole comprises a first operation groove and a second operation groove; the second operation groove is positioned on the inner side of the bottom plate, the upper end of the second operation groove penetrates through the upper side surface of the bottom plate, and the lower end surface of the second operation groove is positioned in the bottom plate; the first operation groove comprises a vertical groove and a horizontal groove; the upper side of the vertical groove penetrates through the upper side surface of the bottom plate, and the lower side of the vertical groove is communicated with the horizontal groove; one side of the vertical groove penetrates through the outer side wall of the bottom plate, and the other side of the vertical groove is communicated with the second operation groove; the horizontal groove is positioned in the bottom plate, one end of the horizontal groove penetrates through the outer side wall of the bottom plate, and the other side of the horizontal groove is communicated with the second operation groove; the section of the first operation groove cut along the longitudinal direction is an L-shaped section; the bottom plate is lifted to an installation position, the screw rod descends to a position communicated with the horizontal groove from the vertical groove and moves the bottom plate, so that the screw rod is clamped in the horizontal groove; the nut is positioned in the second operation groove and screwed tightly on the screw rod.
3. The fabricated construction for a subway station rail cap tunnel according to claim 1, wherein: the bottom plate is a fully prefabricated concrete slab.
4. The fabricated construction for a subway station rail cap tunnel according to claim 1, wherein: the cement mortar adopts high-grade cement mortar.
5. The fabricated construction for a subway station rail cap tunnel according to claim 1, wherein: two working holes are respectively formed in the two ends of the bottom plate, and the working holes in the two ends are opposite in position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222293592.3U CN218479473U (en) | 2022-08-29 | 2022-08-29 | Assembly type structure for air duct at top of underground station rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222293592.3U CN218479473U (en) | 2022-08-29 | 2022-08-29 | Assembly type structure for air duct at top of underground station rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218479473U true CN218479473U (en) | 2023-02-14 |
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ID=85165405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222293592.3U Active CN218479473U (en) | 2022-08-29 | 2022-08-29 | Assembly type structure for air duct at top of underground station rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218479473U (en) |
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2022
- 2022-08-29 CN CN202222293592.3U patent/CN218479473U/en active Active
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