Diversion tunnel lining pumping concrete sealing device

Abstract

The utility model relates to the technical field of lining devices, in particular to a diversion tunnel lining pumping concrete sealing device which comprises a rock body and a diversion hole formed in the rock body, an embedded rod extending to the outer side of the rock body is fixed in the rock body, a blocking plate covers the front portion of the diversion hole, and the blocking plate is arranged in the rock body. The blocking plate is connected with the embedded rod through a fastener; wherein a flow guide hole is formed in the front end of the blocking plate, a weight box extending into the flow guide hole is fixed to the back end of the blocking plate, a lifting frame is detachably installed on the blocking plate, and a lifting mechanism is further arranged in front of the lifting frame. An operator is driven by the lifting mechanism to move upwards, so that when the concrete pumping device is connected, a grouting opening and a pumping pipeline can be conveniently connected and disassembled, and the problem that operation is inconvenient due to the fact that an existing grouting opening is high is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of lining devices, and in particular to a device for sealing the pumped concrete lining of a diversion tunnel. Background Technology

[0002] A diversion tunnel is a tunnel used for diverting water during construction. After the hydropower station is completed, a sealing device is needed to seal the diversion tunnel to prevent its presence from affecting the normal operation of the hydropower station.

[0003] The current sealing device involves installing a sealing plate at the front end of the diversion tunnel and a counterweight box at the rear end of the sealing plate for injecting concrete slurry to improve connection stability, as specifically disclosed in Chinese Patent No. CN222477357U.

[0004] However, in order to ensure the amount of grout injected into the counterweight box, the grouting port on the sealing plate is usually set at a high position. In actual concrete pumping, the connection operation of the grouting port is not convenient enough, so there is still room for improvement. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the grouting ports on the sealing plates being generally located at high positions, making the connection and operation of the grouting ports in actual concrete pumping inconvenient. Therefore, this invention proposes a sealing device for pumped concrete in the lining of a diversion tunnel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a pumped concrete sealing device for a diversion tunnel lining, comprising a rock mass and a diversion hole opened inside the rock mass, wherein a pre-embedded rod extending to the outside of the rock mass is fixed inside the rock mass, and a sealing plate is covered in front of the diversion hole, the sealing plate being connected to the pre-embedded rod by fasteners;

[0008] The sealing plate has a counterweight box fixed to its back end, which extends into the guide hole. The sealing plate is detachably mounted with a lifting frame, and a lifting mechanism is provided in front of the lifting frame.

[0009] Furthermore, the lifting mechanism includes sprockets rotatably connected inside both sides of the lifting frame, with the two sprockets on the same side driven by a chain, and the two opposing sprockets fixedly connected by a rotating shaft;

[0010] A motor is also fixedly installed on the side of the lifting frame, and the shaft end of the motor is fixedly connected to a sprocket.

[0011] Furthermore, a basket is slidably connected to the front end of the lifting frame, and the side of the basket is connected to one side of the chain.

[0012] Furthermore, guide rails are fixedly installed on both the front and rear sides of the lifting frame, and two guide wheels are rotatably connected to both sides of the suspended basket, with the guide wheels sliding against the guide rails.

[0013] Furthermore, the sealing plate has a grouting port at its front end that connects to the counterweight box.

[0014] Furthermore, it also includes a fall protection assembly installed on the lifting frame;

[0015] The fall arrestor assembly includes a drum fixed on an upper rotating shaft, with a steel wire rope wound around the outside of the drum. The other end of the steel wire rope is connected to the suspended basket. One end of the upper rotating shaft extends to the outside of the lifting frame. An installation plate is fixedly installed at the end of the rotating shaft. A groove is formed on the end face of the installation plate. The inside of the groove is slidably connected to a locking tooth by a tension spring. An internal toothed ring is fixedly installed on the outside of the lifting frame and sleeved on the outside of the installation plate.

[0016] The present invention provides a sealing device for pumped concrete lining of a diversion tunnel. The advantages of this device are as follows: By installing a lifting frame and a lifting mechanism at the front end of the sealing plate, the operator can be moved upward with the help of the lifting mechanism when sealing the diversion hole. This facilitates the easy connection and disassembly of the grouting port and the pumping pipeline when connecting the concrete pumping device, thereby solving the problem of inconvenient operation caused by the high height of the grouting port. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the lifting frame structure of this utility model;

[0019] Figure 3 for Figure 2 A magnified structural diagram of area A;

[0020] Figure 4 for Figure 2 An enlarged structural diagram of region B.

[0021] In the diagram: 1. Rock mass; 2. Diversion hole; 3. Embedded rod; 4. Sealing plate; 41. Grouting port; 5. Lifting frame; 6. Counterweight box; 7. Lifting mechanism; 71. Sprocket; 72. Chain; 73. Shaft; 74. Motor; 75. Suspended basket; 76. Guide rail; 77. Guide wheel; 78. Fall protection component; 781. Drum; 782. Wire rope; 783. Mounting plate; 784. Tension spring; 785. Gear; 786. Internal gear ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 In one embodiment of this utility model, a rock mass 1 and a flow guide hole 2 opened inside the rock mass 1 are disclosed. An embedded rod 3 extending to the outside of the rock mass 1 is fixed inside the rock mass 1. A sealing plate 4 is covered in front of the flow guide hole 2. The sealing plate 4 is connected to the embedded rod 3 by fasteners.

[0024] Of course, as described in the prior art, there are multiple pre-embedded rods 3, which are distributed along the outer circumference of the guide hole 2. In addition, the fasteners are bolts. In the specific installation, one end of the pre-embedded rod 3 is first inserted through the sealing plate 4, and then the entire sealing plate 4 can be fixed by connecting multiple bolts and the pre-embedded rod 3 in sequence.

[0025] The sealing plate 4 has a counterweight box 6 fixed to its back end, which extends into the guide hole 2. The interior of the counterweight box 6 is used to pour concrete, and the sealing device can more stably seal the guide hole 2 by relying on gravity. The sealing plate 4 is detachably equipped with a lifting frame 5, and a lifting mechanism 7 is also provided in front of the lifting frame 5. Specifically, in this embodiment, the lifting frame 5 can be connected to the sealing plate 4 by fasteners such as bolts, so as to facilitate subsequent disassembly and reuse.

[0026] In some embodiments, the lifting mechanism 7 of the present invention includes sprockets 71 rotatably connected to both sides of the lifting frame 5, the two sprockets 71 on the same side are driven by a chain 72, and the two opposing sprockets 71 are fixedly connected by a rotating shaft 73.

[0027] The lifting frame 5 is also fixedly mounted on the side of a motor 74, and the shaft end of the motor 74 is fixedly connected to a sprocket 71.

[0028] Of course, in this embodiment, the front end of the lifting frame 5 is slidably connected to the basket 75, and the side of the basket 75 is connected to one side of the chain 72.

[0029] In this utility model, a liftable basket 75 is used for lifting and lowering workers, which effectively solves the problem of inconvenient connection and disassembly caused by the high position of the grouting port 41 of the sealing plate 4.

[0030] Based on the above embodiments, the lifting frame 5 in this utility model is fixedly installed with guide rails 76 on both the front and rear sides, and two guide wheels 77 are rotatably connected to both sides of the suspended basket 75. The guide wheels 77 slide with the guide rails 76. It should be noted that the guide wheels 77 in this embodiment are set as V-shaped wheels, which are fitted on the outside of the guide rails 76 to improve the sliding stability of the suspended basket 75.

[0031] Of course, in order to facilitate the pumping of concrete into the interior of the counterweight box 6, the front end of the sealing plate 4 in this embodiment is provided with a grouting port 41 that connects to the counterweight box 6.

[0032] In addition, to ensure the safety of the suspended platform 75 during the lifting process and to avoid falling, this embodiment includes an anti-fall component 78 installed on the lifting frame 5;

[0033] The fall arrestor assembly 78 includes a drum 781 fixed on an upper rotating shaft 73. A steel wire rope 782 is wound around the outside of the drum 781. One end of the steel wire rope 782 is fixedly connected to the drum 781, and the other end of the steel wire rope 782 is connected to the suspended basket 75. One end of the upper rotating shaft 73 extends to the outside of the lifting frame 5. An installation plate 783 is fixedly installed at the end of the rotating shaft 73. A sliding groove is provided on the end face of the installation plate 783. A retaining tooth 785 is slidably connected inside the sliding groove through a tension spring 784. An internal toothed ring 786 is fixedly installed on the outside of the installation plate 783.

[0034] In this embodiment, the design of the steel wire rope 782 and the drum 781 means that when the motor 74 and the chain 72 are damaged, causing the transmission to fail, the suspended platform 75 will fall rapidly. When the suspended platform 75 falls, it will drive the steel wire rope 782 to unwind and drive the drum 781 to rotate. At the initial unwinding, the steel wire rope 782 is in a slack state. It is not until the steel wire rope 782 is taut that it begins to pull the drum 781 to rotate.

[0035] Since the drum 781 and the upper rotating shaft 73 are fixedly connected, the entire rotating shaft 73 will also rotate rapidly. When the rotating shaft 73 rotates, it will drive the mounting plate 783 to rotate rapidly. Under the action of centrifugal force, the locking tooth 785 overcomes a certain tension of the tension spring 784 and moves outward until the end of the locking tooth 785 is engaged in the inside of the inner gear ring 786 to complete the rotation limit of the rotating shaft 73. At this time, the rotating shaft 73 stops rotating. Under the action of the wire rope 782, the suspended basket 75 can be stopped, thus achieving the purpose of preventing falls.

[0036] In summary, by installing a lifting frame 5 and a lifting mechanism 7 at the front end of the sealing plate 4, the operator can be moved upward with the help of the lifting mechanism 7 when sealing the guide hole 2. This facilitates the easy connection and disassembly of the grouting port 41 and the pumping pipe when connecting the concrete pumping device, thereby solving the problem that the grouting port 41 is currently too high and causes inconvenience in operation.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing device for pumped concrete lining a diversion tunnel, characterized in that, include: The rock mass (1) and the guide hole (2) opened inside the rock mass (1) are provided. An embedded rod (3) extending to the outside of the rock mass (1) is fixed inside the rock mass (1). A sealing plate (4) is covered in front of the guide hole (2). The sealing plate (4) is connected to the embedded rod (3) by fasteners. The sealing plate (4) has a counterweight box (6) that extends into the guide hole (2) at its back end. The sealing plate (4) is detachably equipped with a lifting frame (5), and a lifting mechanism (7) is provided in front of the lifting frame (5).

2. The sealing device for pumped concrete lining a diversion tunnel according to claim 1, characterized in that: The lifting mechanism (7) includes sprockets (71) rotatably connected to both sides of the lifting frame (5). The two sprockets (71) on the same side are driven by a chain (72), and the two opposing sprockets (71) are fixedly connected by a rotating shaft (73). The side of the lifting frame (5) is also fixedly mounted with a motor (74), and the shaft end of the motor (74) is fixedly connected to a sprocket (71).

3. The device for sealing the pumped concrete lining of a diversion tunnel according to claim 2, characterized in that: The front end of the lifting frame (5) is slidably connected to a basket (75), and the side of the basket (75) is connected to one side of the chain (72).

4. The sealing device for pumped concrete lining a diversion tunnel according to claim 3, characterized in that: The lifting frame (5) is fixedly installed with guide rails (76) on both the front and rear sides, and two guide wheels (77) are rotatably connected to both sides of the basket (75). The guide wheels (77) and the guide rails (76) slide against each other.

5. A sealing device for pumped concrete lining a diversion tunnel according to claim 2, characterized in that: The sealing plate (4) has a grouting port (41) at its front end that connects to the counterweight box (6).

6. The sealing device for pumped concrete lining a diversion tunnel according to claim 3, characterized in that: It also includes a fall arrestor (78) installed on the lifting frame (5); The fall arrestor assembly (78) includes a drum (781) fixed on the upper rotating shaft (73), with a steel wire rope (782) wound around the outside of the drum (781). The other end of the steel wire rope (782) is connected to the basket (75). One end of the upper rotating shaft (73) passes through the outside of the lifting frame (5). An installation plate (783) is fixedly installed at the end of the rotating shaft (73). A groove is provided on the end face of the installation plate (783). A retaining tooth (785) is slidably connected inside the groove by a tension spring (784). An internal toothed ring (786) sleeved on the outside of the installation plate (783) is fixedly installed on the outside of the lifting frame (5).

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