CN215486062U - Telescopic pouring structure - Google Patents
Telescopic pouring structure Download PDFInfo
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- CN215486062U CN215486062U CN202121611634.2U CN202121611634U CN215486062U CN 215486062 U CN215486062 U CN 215486062U CN 202121611634 U CN202121611634 U CN 202121611634U CN 215486062 U CN215486062 U CN 215486062U
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Abstract
The utility model provides a telescopic pouring structure. The pouring device comprises an outer sleeve assembly and a pouring inner tube, wherein the pouring inner tube is arranged in an outer tube of the outer sleeve assembly in a sliding manner; the outer pipe is arranged on a pouring window of the trolley template; one end of the pouring inner tube is connected with the jacking power part, and the other end of the pouring inner tube is provided with a pouring opening for enabling the pouring opening in the pouring inner tube to extend out of the pouring window for pouring under the action of the jacking power part. According to the utility model, by adopting the telescopic pouring structure, pouring is carried out while stretching, the height position of the pouring opening on the pouring inner pipe can be changed, and the possibility of forming the cofferdam is reduced, so that the vault crown cavity formed by the cofferdam on the tunnel vault is reduced, and the pouring quality is improved.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a telescopic pouring structure.
Background
In the prior art, the top of the tunnel is vertically poured by adopting a fixed pouring opening 8, and the gap between the trolley template and the tunnel excavation contour surface is filled by utilizing concrete through gravity self-flowing. Because the concrete mobility is poor, after pouring opening (pouring opening) concrete pours to the summit, whole pouring vertical section is the isosceles triangle normal distribution basically, as shown in fig. 5, the isosceles side of isosceles triangle changes along with the size of pouring opening interval, the pouring opening interval is bigger, the isosceles triangle's waist is longer, it means that the pouring thickness is not enough and the sky is bigger, the appearance of the hole phenomenon when pouring through fixed pouring opening 8 is unavoidable, the great influence pours the quality.
In view of the above, there is a need for a retractable casting structure to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a telescopic pouring structure to solve the problem of serious cavity phenomenon in vertical pouring.
In order to achieve the purpose, the utility model provides a telescopic pouring structure, which comprises an outer sleeve assembly and a pouring inner pipe, wherein the pouring inner pipe is arranged in an outer pipe of the outer sleeve assembly in a sliding manner; the outer pipe is arranged on a pouring window of the trolley template; one end of the pouring inner tube is connected with the jacking power part, and the other end of the pouring inner tube is provided with a pouring opening for enabling the pouring opening in the pouring inner tube to extend out of the pouring window for pouring under the action of the jacking power part.
Preferably, the pouring opening is formed in the end face of the pouring inner pipe, and the outer sleeve assembly comprises an insert plate used for sealing the pouring opening.
Preferably, the inserting plate is movably connected with the outer pipe, and the plate surface of the inserting plate is perpendicular to the axis of the outer pipe.
Preferably, the insertion plate and the outer pipe are connected in a sliding manner.
Preferably, sealing elements are arranged on two plate surfaces of the inserting plate.
Preferably, the pouring opening is formed in the side wall of the pouring inner tube, and the pouring opening is sealed through sleeving of the inner wall of the outer tube.
Preferably, the outer sleeve assembly comprises a seal assembly; the sealing assembly is arranged between the outer pipe and the pouring inner pipe.
Preferably, the sealing assembly comprises a sealing ring and a guide ring which are arranged on the inner wall of the outer pipe.
Preferably, the axis of the outer tube is arranged obliquely with respect to the casting window plane.
Preferably, the pouring inner pipe is connected with the jacking power part through a horn interface, and the jacking power part is a concrete conveying pipe connected with the telescopic mechanism.
The technical scheme of the utility model has the following beneficial effects:
(1) according to the utility model, by adopting the telescopic pouring structure, pouring is carried out while stretching, the height position of a pouring opening on the pouring inner pipe can be changed, and the possibility of forming a cofferdam is reduced, so that a vault crown cavity formed by the cofferdam on a tunnel vault is reduced, and the pouring quality is improved.
(2) In the utility model, the jacking power part is a concrete conveying pipe connected with the telescopic mechanism, and drives the pouring inner pipe and the pouring outer pipe to slide relatively while conveying concrete to the pouring inner pipe.
(3) In the utility model, when the end part of the pouring inner pipe is provided with a pouring opening, the outer sleeve assembly comprises an inserting plate for closing the pouring opening; the picture peg and outer tube swing joint, and the face of picture peg is perpendicular with the axis of outer tube, all is equipped with the sealing member on two faces of picture peg for realize stably sealing the opening of pouring the inner tube, prevent to produce and leak.
(4) According to the utility model, the sealing ring and the guide ring are arranged between the outer pipe and the pouring inner pipe, so that the sealing performance between the pouring inner pipe and the outer pipe can be ensured, the uniform gap between the pouring inner pipe and the outer pipe can be ensured, and the blocking condition in the expansion process can be prevented.
(5) According to the utility model, when the pouring opening is arranged on the side wall of the pouring inner pipe, no additional inserting plate is needed, the pouring opening is directly sleeved on the inner wall of the outer pipe to realize sealing, and the failure rate caused by the blocking of cement paste when the inserting plate is arranged can be reduced.
(6) According to the utility model, the axis of the outer pipe is obliquely arranged relative to the plane of the pouring window, so that the pouring range of the telescopic pouring structure can be enlarged, and the pouring quality of the telescopic pouring structure can be improved.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of a telescopic casting structure in embodiment 1 of the present application;
FIG. 2 is an enlarged detail view of part A of FIG. 1 in example 1 of the present application;
FIG. 3 is a schematic view of the insert plate closing the casting opening in example 1 of the present application;
FIG. 4 is a schematic view of a concrete molding profile obtained by using a retractable casting structure in example 1 of the present application;
FIG. 5 is a schematic representation of a prior art concrete molding profile using a fixed pour opening;
fig. 6 is a schematic structural view of a telescopic casting structure in embodiment 2 of the present application;
fig. 7 is a schematic structural view of a telescopic casting structure in embodiment 3 of the present application;
fig. 8 is a schematic structural view of a telescopic casting structure in embodiment 4 of the present application;
the concrete pouring device comprises an outer sleeve assembly 1, an outer tube 1.1, an inserting plate 1.2.1, a sealing element 1.3, a sealing assembly 1.3.1, a sealing ring 1.3.2, a guide ring 2, a pouring inner tube 2.1, a pouring opening 3, a jacking power element 4, a horn connector 5, a trolley template 6, a concrete forming profile 7, a tunnel excavation rear profile 8 and a fixed pouring opening.
Detailed Description
Embodiments of the utility model will be described in detail below with reference to the drawings, but the utility model can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1 to 5, the present embodiment is applied to casting of a lining surface of a tunnel.
A telescopic casting structure, see fig. 1, comprising an outer sleeve assembly 1 and a casting inner tube 2, wherein the casting inner tube 2 is slidably arranged in an outer tube 1.1 of the outer sleeve assembly 1 to realize relative sliding between the outer tube 1.1 and the casting inner tube 2; the outer pipe 1.1 is fixedly arranged on a pouring window of the trolley template 5 through bolt connection; one end of the pouring inner tube 2 is connected with the jacking power part 3, and the other end of the pouring inner tube 2 is provided with a pouring opening 2.1, so that the pouring opening 2.1 on the pouring inner tube 2 extends out of the pouring window for pouring under the action of the jacking power part 3, the pouring height of the pouring inner tube 2 is changed, and the phenomenon of a cavity after pouring is reduced, as shown in fig. 4; when pouring inner tube 2 is higher than platform truck template 5, compare the concrete shaping profile 6 that forms in figure 4 and the concrete shaping profile 6 that forms in figure 5, can find that this application adopts telescopic casting structure to pour the back, and the cavity between the concrete shaping profile 6 that forms and the tunnel excavation back profile 7 obviously reduces, can promote the quality of pouring.
The casting inner pipe 2 is connected with the jacking power part 3 through the horn interface 4, the jacking power part 3 is a concrete conveying pipe connected with the telescopic mechanism, and the casting inner pipe 2 and the outer pipe 1.1 are driven to slide relatively when the concrete is conveyed to the casting inner pipe 2.
Referring to fig. 3, the pouring opening 2.1 is disposed on an end surface of the pouring inner tube 2, and the outer sleeve assembly 1 includes an insert plate 1.2 for closing the pouring opening 2.1.
The inserting plate 1.2 is movably connected with the outer pipe 1.1, and the plate surface of the inserting plate 1.2 is perpendicular to the axis of the outer pipe 1.1 and used for stably sealing a pouring opening 2.1 of the pouring inner pipe 2.
The connection mode of the inserting plate 1.2 and the outer pipe 1.1 is sliding connection, and when the inner pipe 2 needs to be extended out for pouring, the inserting plate 1.2 slides out; when the pouring opening 2.1 needs to be sealed, the pouring inner pipe 2 is retracted, the inserting plate 1.2 is slid in, and the pouring opening 2.1 is sealed.
In order to avoid leakage between the pouring opening 2.1 and the inserting plate 1.2, the two plate surfaces of the inserting plate 1.2 are respectively provided with a sealing element 1.2.1, the sealing element 1.2.1 can be selected from an elastic rubber pad or an elastic rubber ring, and in the embodiment, the upper surface and the lower surface of the inserting plate 1.2 are respectively provided with the elastic rubber ring.
Referring to fig. 2, the outer sleeve assembly 1 includes a seal assembly 1.3; the sealing assembly 1.3 is arranged between the outer pipe 1.1 and the pouring inner pipe 2.
Seal assembly 1.3 including set up in the sealing washer 1.3.1 and the guide ring 1.3.2 of outer tube 1.1 inner wall, in this embodiment, adopt rubber seal and nylon guide ring can guarantee to pour the sealing performance between inner tube 2 and the outer tube 1.1, still can guarantee to pour the clearance between inner tube 2 and the outer tube 1.1 even simultaneously, prevent to appear blocking the condition at flexible in-process.
The using method of the telescopic pouring structure comprises the following steps: the pouring inner tube 2 is in sliding connection with the outer sleeve assembly 1, the outer sleeve assembly 1 is installed on a pouring window of the trolley template 5 through bolts, relative sliding between the pouring inner tube 2 and the outer tube 1.1 is achieved through the jacking power part 3, so that the pouring position of the pouring opening 2.1 is changed, after pouring is completed, the pouring inner tube 2 is retracted, and the inserting plate 1.2 is slid, so that the inserting plate 1.2 can close the pouring opening 2.1 at the end part of the pouring inner tube 2.
Example 2:
referring to fig. 6, the embodiment is applied to pouring of a tunnel lining surface.
The difference between the embodiment and the embodiment 1 lies in that the pouring opening 2.1 is arranged on the side wall of the pouring inner pipe 2, the top end of the pouring inner pipe 2 is sealed, the sealing of the pouring opening 2.1 is realized by the nesting of the inner wall of the outer pipe 1.1, the pouring opening 2.1 is not required to be additionally sealed by the inserting plate 1.2, and the failure rate of cement paste blocking caused by the arrangement of the inserting plate 1.2 is reduced.
Example 3:
referring to fig. 7, the embodiment is applied to pouring of a tunnel lining surface.
The difference between this embodiment and embodiment 2 is that the axis of the outer tube 1.1 is arranged obliquely with respect to the casting window plane, the range of the inclination angle α is optimally 45 ° to 90 °, and the casting range of the telescopic casting structure can be expanded.
Example 4:
referring to fig. 8, the embodiment is applied to pouring of a tunnel lining surface.
The difference between this embodiment and embodiment 2 is that the pouring inner tube 2 is of an elbow structure, which facilitates the arrangement of a telescopic pouring structure, and at this time, a telescopic mechanism is disposed below the elbow to realize the relative sliding between the pouring inner tube 2 and the outer tube 1.1 in the vertical direction.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The telescopic pouring structure is characterized by comprising an outer sleeve assembly (1) and a pouring inner pipe (2), wherein the pouring inner pipe (2) is arranged in an outer pipe (1.1) of the outer sleeve assembly (1) in a sliding manner; the outer pipe (1.1) is arranged on a pouring window of the trolley template; one end of the pouring inner tube (2) is connected with the jacking power part (3), the other end of the pouring inner tube (2) is provided with a pouring opening (2.1) for realizing that the pouring opening (2.1) on the pouring inner tube (2) extends out of the pouring window for pouring under the action of the jacking power part (3).
2. Telescopic casting structure according to claim 1, wherein the casting opening (2.1) is provided on an end face of the casting inner tube (2), the outer sleeve assembly (1) comprising an insert plate (1.2) for closing the casting opening (2.1).
3. Telescopic casting structure according to claim 2, wherein the insert plate (1.2) is movably connected to the outer tube (1.1), and the surface of the insert plate (1.2) is perpendicular to the axis of the outer tube (1.1).
4. Telescopic casting structure according to claim 3, wherein the insert plate (1.2) is connected to the outer tube (1.1) in a sliding manner.
5. Telescopic casting structure according to claim 4, wherein the insert plate (1.2) is provided with sealing elements (1.2.1) on both plate surfaces.
6. Telescopic casting structure according to claim 1, wherein the casting opening (2.1) is provided in the side wall of the inner casting tube (2), and the closure of the casting opening (2.1) is achieved by the inner wall of the outer tube (1.1) fitting.
7. Telescopic casting structure according to any of claims 2-6, wherein the outer sleeve assembly (1) comprises a sealing assembly (1.3); the sealing assembly (1.3) is arranged between the outer pipe (1.1) and the pouring inner pipe (2).
8. Telescopic casting structure according to claim 7, wherein the sealing assembly (1.3) comprises a sealing ring (1.3.1) and a guiding ring (1.3.2) arranged on the inner wall of the outer tube (1.1).
9. Telescopic casting structure according to claim 1, wherein the axis of the outer tube (1.1) is arranged obliquely with respect to the casting window plane.
10. The telescopic casting structure according to claim 1, wherein the casting inner pipe (2) is connected with the jacking power member (3) through a horn connector (4), and the jacking power member (3) is a concrete conveying pipe connected with the telescopic mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121611634.2U CN215486062U (en) | 2021-07-15 | 2021-07-15 | Telescopic pouring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121611634.2U CN215486062U (en) | 2021-07-15 | 2021-07-15 | Telescopic pouring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486062U true CN215486062U (en) | 2022-01-11 |
Family
ID=79727890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121611634.2U Active CN215486062U (en) | 2021-07-15 | 2021-07-15 | Telescopic pouring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486062U (en) |
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2021
- 2021-07-15 CN CN202121611634.2U patent/CN215486062U/en active Active
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