Plugging cover for embedded pipe of subway segment

Abstract

The utility model relates to the relevant technical field of grouting plugging, in particular to a subway segment embedded pipe plugging cover which comprises a plugging cover body, movable rods are connected to the two sides of the plugging cover body, cylindrical grooves are formed in the two sides of the bottom of a grouting pipeline, elastic connecting assemblies are arranged in the cylindrical grooves, and the upper portions of the movable rods are connected with the elastic connecting assemblies. A push rod is installed at the bottom end of the slurry conveying pipeline, after the slurry conveying pipeline is installed on a grouting pipeline, the plugging cover can be pushed out of the bottom end of the grouting pipeline through the push rod, then the grouting pipeline is conducted, grouting operation is carried out, after grouting is finished, a push rod elastic connecting assembly drives the plugging cover to reset, the grouting pipeline is plugged, plugging is automatically completed, and the grouting efficiency is improved. And the slurry can be better prevented from flowing back into the grouting pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field related to grouting and plugging, in particular to a plugging cover for a subway pipe segment embedded pipe. Background Art

[0002] As an important infrastructure of modern cities, subways are being constructed on a large scale in my country. Most subway tunnels use shield technology, and the tunnel lining is assembled from precast concrete segments. Pre-buried grooves are widely used in subways. When in use, the pre-buried grooves need to be fixed on the segment template in advance, and then mud is injected into the segment template.

[0003] The use of segment formwork requires grouting and sealing, but grouting difficulties are often encountered during the construction process. The existing grouting pipe sealing cap is mostly set at the top of the grouting pipe, and the grouting pipe needs to be disconnected from the grouting pipe before the sealing cap is installed. The sealing cap is troublesome to install, and the mud can still flow back into the grouting pipe through the bottom end of the grouting pipe, and the sealing of the grouting pipe is not thorough. For this reason, technical personnel in this field have proposed a subway segment pre-buried pipe sealing cap to solve the problems raised in the above background. Utility Model Content

[0004] The utility model aims to provide a plugging cover for a subway pipe segment embedded pipe, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plugging cover for embedded pipes in subway segments, comprising a plugging cover, movable rods are connected to the outer walls on both sides of the plugging cover, the outer diameter of the plugging cover is consistent with the inner diameter of a grouting pipe, cylindrical grooves are arranged on both sides of the grouting pipe, the upper part of the movable rod is inserted into the interior of the cylindrical grooves arranged at corresponding positions, an elastic connecting component is arranged in the cylindrical grooves, the elastic connecting component is connected to the upper part of the movable rod, the top end of the grouting pipe is connected to the bottom end of a grouting pipe, a push rod is installed at the bottom end of the grouting pipe, the plugging cover normally blocks the bottom end of the grouting pipe, when the grouting pipe is installed on the grouting pipe, the push rod is inserted into the inner cavity of the grouting pipe, and the bottom end of the push rod pushes the plugging cover outward from the bottom end of the grouting pipe.

[0007] As a further solution of the utility model: the elastic connection assembly includes an elastic member and a limit plate, the limit plate is connected to the top end of the movable rod, the elastic member is sleeved on the upper part of the movable rod, the top end of the elastic member is connected to the bottom end of the limit plate, and the bottom end of the elastic member is connected to the inner bottom surface of the cylindrical groove.

[0008] As a further solution of the utility model: the outer wall of the limit plate is slidably fitted with the inner wall of the cylindrical groove.

[0009] As a further solution of the utility model: the top of the sealing cover is connected with a pointed cone, the top of the push rod is connected with the bottom end of the circular ring plate, the circular ring plate is detachably installed on the bottom end of the slurry conveying pipeline, and the bottom end of the push rod is provided with an inclined surface matching the pointed cone.

[0010] As a further solution of the utility model: the bottom end and the top end of the grouting pipe are respectively connected to the first mounting plate and the second mounting plate, the bottom end of the grouting pipe is connected to the third mounting plate, the first mounting plate is detachably mounted on the pipe segment template, and the second mounting plate is detachably mounted on the third mounting plate.

[0011] The utility model has the following advantages: the sealing cover is arranged at the bottom of the grouting pipe. Compared with the traditional sealing cover arranged at the top of the grouting pipe, the sealing cover can better seal the grouting pipe to prevent mud from flowing back into the grouting pipe. The sealing cover is connected to the grouting pipe through an elastic connecting component. When the grouting pipe is installed on the grouting pipe, the sealing cover can be pushed out from the bottom end of the grouting pipe by the push rod, so that the grouting pipe is connected and grouting operation is carried out. After the grouting is completed, the push rod elastic connecting component drives the sealing cover to reset and seal the grouting pipe. The sealing is automatically completed, which has a stronger sealing effect and flexibility in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall internal structure of an embodiment of the utility model in a working state.

[0013] Figure 2 It is a schematic diagram of the overall internal structure of another working state of an embodiment of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the circular ring plate in the embodiment of the utility model.

[0015] In the figure: 1. Segment formwork; 2. Grouting pipeline; 3. Slurry delivery pipeline; 4. First mounting plate; 5. Second mounting plate; 6. Third mounting plate; 7. Sealing cover; 8. Cone; 9. Columnar groove; 10. Movable rod; 11. Limiting plate; 12. Elastic member; 13. Circular plate; 14. Push rod; 15. Inclined surface. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0017] Example 1: Please refer to Figure 1, a subway segment embedded pipe sealing cover, including a sealing cover 7, the outer walls of both sides of the sealing cover 7 are connected with movable rods 10, the outer diameter of the sealing cover 7 is consistent with the inner diameter of the grouting pipe 2, and the two sides of the grouting pipe 2 are provided with cylindrical grooves 9, the upper part of the movable rod 10 is inserted into the inner part of the cylindrical grooves 9 arranged at the corresponding position, and an elastic connecting component is arranged in the cylindrical grooves 9, and the elastic connecting component is connected to the upper part of the movable rod 10, the top of the grouting pipe 2 is connected to the bottom end of the grouting pipe 3, and the bottom end of the grouting pipe 3 is installed with a push rod 14. Under normal circumstances, the sealing cover 7 blocks the bottom end of the grouting pipe 2. When the grouting pipe 3 is installed on the grouting pipe 2, the push rod 14 is inserted into the inner cavity of the grouting pipe 2, and the bottom end of the push rod 14 pushes the sealing cover 7 outward from the bottom end of the grouting pipe 2.

[0018] See also Figure 1 , Figure 2 The elastic connection component includes an elastic member 12 and a limit plate 11. The limit plate 11 is connected to the top end of the movable rod 10. The elastic member 12 is sleeved on the upper part of the movable rod 10. The top end of the elastic member 12 is connected to the bottom end of the limit plate 11. The bottom end of the elastic member 12 is connected to the inner bottom surface of the cylindrical groove 9. In this embodiment, the outer wall of the limit plate 11 is slidably fitted with the inner wall of the cylindrical groove 9. This arrangement is used to improve the movement stability of the movable rod 10 in the cylindrical groove 9.

[0019] Example 2: See Figures 1 to 3 On the basis of the first embodiment, the top of the blocking cover 7 is connected with a pointed cone 8, the top of the push rod 14 is connected with the bottom end of the circular ring plate 13, the circular ring plate 13 is detachably mounted on the bottom end of the slurry delivery pipeline 3, and the bottom end of the push rod 14 is provided with an inclined surface 15 cooperating with the pointed cone 8. The pointed cone 8 can prevent the transported mud from directly impacting the blocking cover 7, thereby reducing damage to the blocking cover 7.

[0020] See also Figure 1 , Figure 2 The bottom and top ends of the grouting pipe 2 are respectively connected to a first mounting plate 4 and a second mounting plate 5, and the bottom end of the grouting pipe 3 is connected to a third mounting plate 6. The first mounting plate 4 is detachably mounted on the segment template 1, and the second mounting plate 5 is detachably mounted on the third mounting plate 6. Each mounting plate is installed and fixed by bolts, and the annular plate 13 is detachably mounted on the bottom end of the grouting pipe 3 by bolts.

[0021] Working principle: When in use, the annular plate 13 is installed to the bottom end of the grouting pipe 3, and then the grouting pipe 3 is installed on the grouting pipe 2, and the pointed cone 8 is pushed by the push rod 14, and then the blocking cover 7 is pushed outward from the bottom end of the grouting pipe 2, and the grouting pipe 3 transports the external mud into the grouting pipe 2, and the mud is transported to the segment template 1 through the grouting pipe 2. After the grouting is completed, the grouting pipe 3 is disassembled, and the limit plate 11 is driven upward by the elastic member 12, and then the movable rod 10 is driven upward, and then the blocking cover 7 is driven upward and the bottom end of the grouting pipe 2 is blocked to prevent the mud from flowing back from the bottom end of the grouting pipe 2 into the grouting pipe 2.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plugging cover for a pre-buried pipe of a subway segment, comprising a plugging cover, characterized in that: The outer walls on both sides of the sealing cover are connected with movable rods, the outer diameter of the sealing cover is consistent with the inner diameter of the grouting pipe, and cylindrical grooves are arranged on both sides of the grouting pipe. The upper part of the movable rod is inserted into the inside of the cylindrical groove at the corresponding position, and an elastic connecting component is arranged in the cylindrical groove, and the elastic connecting component is connected to the upper part of the movable rod, the top end of the grouting pipe is connected to the bottom end of the grouting pipe, and a push rod is installed at the bottom end of the grouting pipe. Under normal circumstances, the sealing cover blocks the bottom end of the grouting pipe. When the grouting pipe is installed on the grouting pipe, the push rod is inserted into the inner cavity of the grouting pipe, and the bottom end of the push rod pushes the sealing cover outward from the bottom end of the grouting pipe.

2. A subway segment embedded pipe plugging cover according to claim 1, characterized in that: The elastic connection assembly includes an elastic member and a limit plate, the limit plate is connected to the top end of the movable rod, the elastic member is sleeved on the upper part of the movable rod, the top end of the elastic member is connected to the bottom end of the limit plate, and the bottom end of the elastic member is connected to the inner bottom surface of the cylindrical groove.

3. A subway segment embedded pipe plugging cover according to claim 2, characterized in that: The outer wall of the limiting plate is slidably fitted with the inner wall of the cylindrical groove.

4. The subway segment embedded pipe plugging cover according to claim 1, characterized in that: The top of the blocking cover is connected with a pointed cone, the top of the push rod is connected with the bottom end of the circular ring plate, the circular ring plate is detachably mounted on the bottom end of the slurry conveying pipeline, and the bottom end of the push rod is provided with an inclined surface matching with the pointed cone.

5. The subway segment embedded pipe plugging cover according to claim 1, characterized in that: The bottom and top ends of the grouting pipe are respectively connected to a first mounting plate and a second mounting plate, the bottom end of the grouting pipe is connected to a third mounting plate, the first mounting plate is detachably mounted on the segment template, and the second mounting plate is detachably mounted on the third mounting plate.

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