CN221053703U - Novel prefabricated plate anti-floating device - Google Patents
Novel prefabricated plate anti-floating device Download PDFInfo
- Publication number
- CN221053703U CN221053703U CN202323311935.5U CN202323311935U CN221053703U CN 221053703 U CN221053703 U CN 221053703U CN 202323311935 U CN202323311935 U CN 202323311935U CN 221053703 U CN221053703 U CN 221053703U
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- China
- Prior art keywords
- connecting piece
- precast slab
- floating
- semicircular
- ditch template
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- 238000007667 floating Methods 0.000 title claims abstract description 39
- 238000009415 formwork Methods 0.000 claims 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a novel anti-floating device for a precast slab, which relates to the technical field of subway precast slabs and comprises a first connecting piece, a supporting screw rod, an adjustable semicircular ditch template, an anti-floating side-shifting pull rod and a second connecting piece, wherein the first connecting piece is arranged on two sides of a track precast slab; the first connecting piece and the second connecting piece are connected to the edge of the upper end face of the track precast slab through bolts; the upper thread of the first connecting piece is connected with a supporting screw rod and is used for supporting the track precast slab; the outer side end of the first connecting piece is connected with an adjustable semicircular ditch template through a semicircular ditch template bracket. According to the utility model, the two sides of the track precast slab are connected to the inner wall of the tunnel pipe piece through the anti-floating side-shifting pull rod, so that the stability of the precast slab body is improved, the problem of floating in the concrete pouring process is avoided, and meanwhile, the relative position of the precast slab and the tunnel wall pipe piece can be controlled by adjusting the outer sleeve, so that the effect of adjusting the direction of the precast slab is achieved.
Description
Technical Field
The utility model relates to the technical field of subway precast slabs, in particular to a novel precast slab anti-floating device.
Background
Urban rail transit works as the backbone of urban public transportation. The system has the characteristics of energy conservation, land conservation, large transportation capacity, all weather, no pollution, safety and the like, belongs to a green environment-friendly traffic system, accords with the principle of sustainable development, and is particularly suitable for construction of large and medium cities. At present, a great amount of work of underground line track bed construction of urban rail transit engineering is completed in an underground line tunnel, the limited construction workload of a construction space is large, and multi-working-surface construction cannot be carried out. The construction operation surface of the underground line space limited track is blocked, the construction progress is slow, in order to improve the construction progress and the construction quality of the underground line bed, the cast-in-situ integral track bed in the subway construction is gradually replaced by various novel integral track beds, compared with the precast slab integral track bed constructed before, the precast slab integral track bed of the QD type track precast slab is not required to be constructed without a foundation pad layer, the precast slab can be directly erected, the precast slab is finely adjusted in place, pouring is carried out, and finally the track feeding operation is carried out, so that the construction technology of the precast slab integral track bed of the QD type track has wide popularization space.
However, the existing prefabricated plate tool adopts a pressing rod to prevent the prefabricated plate ballast bed from floating up in the concrete pouring operation process, so that the deviation of geometric data of a track is easy to cause, the later operation and maintenance are easy, the workload of track adjustment is large, the long-term use safety of the track is directly affected, and meanwhile, the existing prefabricated plate tool is large in weight and size, the underground line construction space is limited, and the problem exists in the process of the operation and the transportation and installation of the tool. In order to control the stability of a precast slab in the pouring process, a novel precast slab anti-floating device is designed.
Disclosure of utility model
The utility model aims to provide a novel precast slab anti-floating device.
In order to solve the technical problems, the utility model provides the following technical scheme: the novel precast slab anti-floating device comprises a first connecting piece, a supporting screw rod, an adjustable semicircular ditch template, an anti-floating side-shifting pull rod and a second connecting piece, wherein the first connecting piece is arranged on two sides of a track precast slab; the first connecting piece and the second connecting piece are connected to the edge of the upper end face of the track precast slab through bolts; the upper thread of the first connecting piece is connected with a supporting screw rod and is used for supporting the track precast slab; the outside end of connecting piece one has adjustable semicircular ditch template through semicircular ditch template support connection, prevent that the side of floating moves the pull rod one side top with connecting piece one fixed connection, prevent that the other end of floating moves the pull rod and fix on tunnel wall section of jurisdiction through expansion bolts.
Preferably, the anti-floating side-shifting pull rod comprises an outer sleeve and two threaded rods, the two threaded rods are respectively in threaded connection with two ends of the outer sleeve, and the length of the anti-floating side-shifting pull rod is adjusted by rotating the outer sleeve.
Preferably, the adjustable semicircular ditch template is placed on the first connecting piece and the second connecting piece to be fixed.
Preferably, the adjustable semicircular ditch template comprises a semicircular ditch template support, an adjusting bolt, an adjusting rod and a ditch template, wherein the semicircular ditch template support is fixedly connected with the ditch template through a connecting rod to form a whole, the adjusting rod is fixedly arranged on the first connecting piece and the second connecting piece, and two ends of the semicircular ditch template support are connected to the adjusting rod through the adjusting bolt in a threaded manner; the relative distance between the adjusting rod and the semicircular ditch template support can be changed by rotating the adjusting bolt, so that the position of the lower ditch template is adjusted, the relative position of the ditch template and the track precast slab is changed, and the accuracy of the positions of the drainage ditches on two sides of the ballast bed in the tunnel is achieved.
Compared with the related art, the novel precast slab anti-floating device provided by the utility model has the following beneficial effects:
1. The utility model provides a novel precast slab anti-floating device, wherein two sides of a track precast slab are connected to the inner wall of a tunnel pipe piece through an anti-floating side-shifting pull rod, so that the stability of a precast slab body is improved, the problem of floating in the concrete pouring process is avoided, and meanwhile, the relative position of the precast slab and the tunnel pipe piece can be controlled by adjusting an outer sleeve, so that the effect of adjusting the direction of the precast slab is achieved.
2. According to the utility model, the relative distance between the adjusting rod and the semicircular ditch template support can be changed by rotating the adjusting bolt, so that the position of the lower ditch template is adjusted, the relative position of the ditch template and the track precast slab is changed, and the accuracy of the position of the ditch is achieved.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an enlarged schematic view of the adjustable semicircular ditch template of the present utility model;
FIG. 3 is a top view of the anti-floating tool of the present utility model;
FIG. 4 is an enlarged schematic view of the anti-floating side shift drawbar according to the present utility model.
Reference numerals in the drawings: 1. tunnel wall segments; 2. a track precast slab; 3. a concrete funnel; 4. a first connecting piece; 5. supporting a screw rod; 6. an adjustable semicircular ditch template; 7. anti-floating lateral movement pull rod; 8. a semicircular ditch template bracket; 9. an adjusting bolt; 10. an adjusting rod; 11. a second connecting piece; 12. a gutter template; 13. a threaded screw rod; 14. an outer screw cylinder.
Detailed Description
Referring to fig. 1-4, the present utility model provides a technical solution: the novel precast slab anti-floating device comprises a first connecting piece 4, a supporting screw rod 5, an adjustable semicircular ditch template 6, an anti-floating side-shifting pull rod 7 and a second connecting piece 11 which are arranged on two sides of a track precast slab 2; the first connecting piece 4 and the second connecting piece 11 are connected to the edge of the upper end face of the track precast slab 2 through bolts; the upper thread of the first connecting piece 4 is connected with a supporting screw rod 5 for supporting the track precast slab 2; the outside end of connecting piece one 4 is connected with adjustable semicircular ditch template 6 through semicircular ditch template support 8, prevent that the side of floating moves pull rod 7 top with connecting piece one 4 fixed connection, prevent that the other end of floating moves pull rod 7 passes through expansion bolts to be fixed on tunnel wall section of jurisdiction 1.
In this embodiment, the anti-floating side-shift pull rod 7 includes an outer sleeve 14 and two threaded rods 13, the two threaded rods 13 are respectively in threaded connection with two ends of the outer sleeve 14, and the length of the anti-floating side-shift pull rod 7 is adjusted by rotating the outer sleeve 14.
In this embodiment, the adjustable semicircular ditch template 6 is placed on the first connecting piece 4 and the second connecting piece 11 to be fixed.
In this embodiment, the adjustable semicircular ditch template 6 includes a semicircular ditch template support 8, an adjusting bolt 9, an adjusting rod 10, and a ditch template 12, where the semicircular ditch template support 8 is fixedly connected with the ditch template 12 through a connecting rod to form a whole, the adjusting rod 10 is fixedly installed on the first connecting piece 4 and the second connecting piece 11, and two ends of the semicircular ditch template support 8 are screwed on the adjusting rod 10 through the adjusting bolt 9; the relative distance between the adjusting rod 10 and the semicircular ditch template support 8 can be changed by rotating the adjusting bolt 9, so that the position of the lower ditch template 12 is adjusted, the relative position of the ditch template and the track precast slab is changed, and the accuracy of the positions of the drainage ditches on two sides of the ballast bed in the tunnel is achieved.
Working principle:
The first connecting piece 4 is used for connecting the support screw rod 5 with the track precast slab 2 and the anti-floating lateral moving pull rod 7, the height of the precast slab can be adjusted through the rotation of the support screw rod 5, the precast slab can be prevented from floating up in the pouring process through the floating lateral moving pull rod 7, meanwhile, the relative position of the precast slab relative to the tunnel wall segment 1 can be controlled through adjusting the outer sleeve 14, the direction of the precast slab can be adjusted, the adjustable semicircular ditch template 6 is achieved, the adjustable semicircular ditch template 6 comprises a semicircular ditch template support 8, an adjusting bolt 9, an adjusting rod 10 and a ditch template 12, the adjustable semicircular ditch template 6 is placed on the first connecting piece and the second connecting piece and fixed, the relative distance between the adjusting rod 10 and the semicircular ditch template support 8 can be changed through rotating the adjusting bolt 9, so that the position of the lower ditch template 12 is adjusted, the relative position of the ditch template and the track precast slab is changed, and the accuracy of the ditch position is achieved.
Claims (4)
1. The novel anti-floating device for the precast slab comprises a first connecting piece (4), a supporting screw rod (5), an adjustable semicircular ditch template (6), an anti-floating side-shifting pull rod (7) and a second connecting piece (11), wherein the first connecting piece is arranged on two sides of the track precast slab (2); the device is characterized in that the first connecting piece (4) and the second connecting piece (11) are connected to the edge of the upper end face of the track precast slab (2) through bolts; the upper thread of the first connecting piece (4) is connected with a supporting screw rod (5) for supporting the track precast slab (2); the outside end of connecting piece one (4) is connected with adjustable semicircular ditch template (6) through semicircular ditch template support (8), prevent that one side top of come-up side moves pull rod (7) with connecting piece one (4) fixed connection, prevent that the other end of come-up side moves pull rod (7) and passes through expansion bolts to be fixed on tunnel wall section of jurisdiction (1).
2. The novel prefabricated plate anti-floating device according to claim 1, wherein the anti-floating lateral movement pull rod (7) comprises an outer sleeve (14) and two threaded rods (13), the two threaded rods (13) are respectively connected with two ends of the outer sleeve (14) in a threaded mode, and the length of the anti-floating lateral movement pull rod (7) is adjusted by rotating the outer sleeve (14).
3. The novel prefabricated slab anti-floating device according to claim 1, wherein the adjustable semicircular ditch template (6) is placed on the first connecting piece (4) and the second connecting piece (11) to be fixed.
4. The novel prefabricated slab anti-floating device according to claim 3, wherein the adjustable semicircular ditch formwork (6) comprises a semicircular ditch formwork support (8), an adjusting bolt (9), an adjusting rod (10) and a ditch formwork (12), the semicircular ditch formwork support (8) is fixedly connected with the ditch formwork (12) through a connecting rod to form a whole, the adjusting rod (10) is fixedly arranged on a first connecting piece (4) and a second connecting piece (11), and two ends of the semicircular ditch formwork support (8) are in threaded connection with the adjusting rod (10) through the adjusting bolt (9); the relative distance between the adjusting rod (10) and the semicircular ditch template support (8) can be changed by rotating the adjusting bolt (9), so that the position of the lower ditch template (12) is adjusted, the relative position of the ditch template and the track precast slab is changed, and the accuracy of the positions of the drainage ditches on two sides of the ballast bed in the tunnel is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323311935.5U CN221053703U (en) | 2023-11-30 | 2023-11-30 | Novel prefabricated plate anti-floating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323311935.5U CN221053703U (en) | 2023-11-30 | 2023-11-30 | Novel prefabricated plate anti-floating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221053703U true CN221053703U (en) | 2024-05-31 |
Family
ID=91198333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323311935.5U Active CN221053703U (en) | 2023-11-30 | 2023-11-30 | Novel prefabricated plate anti-floating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221053703U (en) |
-
2023
- 2023-11-30 CN CN202323311935.5U patent/CN221053703U/en active Active
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