Water-rich sand layer geological shield receiving sealing device

Abstract

The utility model discloses a water-rich sand layer geology shield receiving sealing device which comprises an embedded ring, the inner ring wall of the embedded ring is fixedly connected with a first air bag, one side of the outer wall of the embedded ring is fixedly connected with a first air pump, and one end of the outer wall of the embedded ring is fixedly connected with an installation ring. The device comprises a mounting ring, a plurality of electric telescopic rods are fixedly connected to the outer wall of the mounting ring, a moving ring is fixedly connected to one end of each electric telescopic rod, a plurality of sliding blocks are fixedly connected to the inner side wall of each moving ring, and a plurality of connecting rods are fixedly connected to the side, away from the electric telescopic rods, of the outer wall of each moving ring. The device comprises a plurality of connecting rods, one end of each connecting rod is fixedly connected with a plug, second air bags are fixedly embedded in the rod walls of the connecting rods, and the second air bags are fixedly connected with air guide pipes. And the stability of the device at the hole is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to a receiving sealing device for a geological shield in a water-rich sand layer. Background Art

[0002] Water-rich sand layers are characterized by high water content and loose particles. Groundwater can easily flow into the working shaft during the shield tunneling phase, causing accidents such as water and sand inrush. Therefore, a shield tunneling seal is required to address these issues.

[0003] However, the current receiving sealing devices all pre-embed steel rings at the tunnel entrance. Since the particles inside the water-rich sand layer are loose, the tunnel entrance will collapse when the steel ring is installed, and the stability is very poor. Therefore, we propose a receiving sealing device for geological shield in water-rich sand layer. Utility Model Content

[0004] The purpose of the utility model is to provide a receiving sealing device for a geological shield in a water-rich sand layer, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a receiving sealing device for a geological shield in a water-rich sand layer, comprising a pre-buried ring, wherein the inner ring wall of the pre-buried ring is fixedly connected to a first air bag, one side of the outer wall of the pre-buried ring is fixedly connected to a first air pump, and the input end of the first air pump is connected to the inside of the first air bag, one end of the outer wall of the pre-buried ring is fixedly connected to a mounting ring, the outer wall of the mounting ring is fixedly connected to a plurality of electric telescopic rods, one end of the plurality of electric telescopic rods is fixedly connected to a mobile ring, and the inner side wall of the mobile ring is fixedly connected to a plurality of A slider, a plurality of connecting rods are fixedly connected to the outer wall of the movable ring away from the electric telescopic rod, one end of several connecting rods are fixedly connected to plugs, several connecting rod walls are fixedly embedded with second air bags, several second air bags are fixedly connected with air guide tubes, and the air guide tubes are embedded in the movable ring, connecting conduits are fixedly connected between several air guide tubes, an output tube is fixedly embedded in the bottom of the connecting conduit, a second air pump is fixedly connected to the lower end of the outer wall of the mounting ring, and the output end of the second air pump is connected to the output tube.

[0006] Preferably, the outer wall of the first airbag is embedded with a plurality of water stop strips.

[0007] Preferably, a plurality of sliding grooves are provided on the outer wall of the embedded ring close to the mounting ring, and the sliding blocks are all stuck in the sliding grooves.

[0008] Preferably, the diameter of the plug is larger than the diameter of the connecting rod.

[0009] Preferably, the plurality of plugs are arranged in a cone shape.

[0010] Compared with the prior art, the beneficial effects of the present invention are: first, several electric telescopic rods are started, and then, through the coordinated use of the provided moving ring, connecting rod, and plug, several second air bags can be inserted into the sand layer, and then, by starting the second air pump, through the coordinated use of the provided output pipe, connecting conduit, air guide tube, and second air bag, the second air bag can be expanded to squeeze the surrounding sand particles, making the surrounding sand particles tighter, avoiding the risk of cave collapse, and thereby improving the stability of the device at the cave entrance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the front view structure of the utility model Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the front view structure of the utility model Figure 2 ;

[0013] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the movable ring of the present invention.

[0015] In the figure: 1. Embedded ring; 101. Slide groove; 11. First air bag; 12. Water stop strip; 13. First air pump; 2. Mounting ring; 21. Electric telescopic rod; 22. Moving ring; 23. Slider; 24. Connecting rod; 25. Plug; 3. Second air bag; 31. Air guide tube; 32. Connecting duct; 33. Output pipe; 34. Second air pump. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-4The utility model provides a technical solution: a receiving sealing device for a geological shield in a water-rich sand layer, comprising a pre-buried ring 1, the inner ring wall of the pre-buried ring 1 is fixedly connected to a first air bag 11, one side of the outer wall of the pre-buried ring 1 is fixedly connected to a first air pump 13, and the input end of the first air pump 13 is connected to the inside of the first air bag 11, one end of the outer wall of the pre-buried ring 1 is fixedly connected to a mounting ring 2, the outer wall of the mounting ring 2 is fixedly connected to a plurality of electric telescopic rods 21, one end of the plurality of electric telescopic rods 21 is fixedly connected to a moving ring 22, the inner side wall of the moving ring 2 is fixedly connected to a plurality of sliders 23, and the moving ring Several connecting rods 24 are fixedly connected to the side of the outer wall 22 away from the electric telescopic rod 21, and one end of several connecting rods 24 is fixedly connected to a plug 25. Several connecting rods 24 are fixedly embedded with a second air bag 3 on the rod wall, and several second air bags 3 are fixedly connected to an air guide tube 31, and the air guide tube 31 is embedded in the movable ring 22. A connecting duct 32 is fixedly connected between the several air guide tubes 31, and an output tube 33 is fixedly embedded at the bottom of the connecting duct 32. A second air pump 34 is fixedly connected to the lower end of the outer wall of the mounting ring 2, and the output end of the second air pump 34 is connected to the output tube 33.

[0018] Furthermore, a plurality of water-stopping strips 12 are embedded in the outer wall of the first airbag 11. The water-stopping strips 12 have the function of absorbing water and expanding, and can fill small gaps.

[0019] Furthermore, a plurality of slide grooves 101 are provided on the outer wall of the embedded ring 1 close to the mounting ring 2, and the sliders 23 are all stuck in the slide grooves 101. The plurality of slide grooves 101 can limit the sliders 23, and the movable ring 22 slides along the slide grooves 101 through the sliders 23.

[0020] Furthermore, the diameter of the plug 25 is larger than that of the connecting rod 24, and the plug 25 can be punched.

[0021] Furthermore, the plurality of plugs 25 are all arranged in a cone shape, which facilitates drilling.

[0022] Specifically, when using the present invention, the embedded ring 1 is first inserted into the hole, and then several electric telescopic rods 21 are started to drive the moving ring 22. The moving ring 22 slides to one side along the slide groove 101 through the slider 23, thereby driving several connecting rods 24 to be inserted into the water-rich sand layer through the plug 25. Then the second air pump 34 is started to supply gas to the output pipe 33, and then the gas is transported to the inside of the second air bag 3 through the connecting conduit 32 and the air guide tube 31. The second air bag 3 can expand in the sand layer, thereby squeezing the surrounding sand particles, making them tighter, thereby improving the stability of the device at the hole.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A receiving sealing device for a geological shield in a water-rich sand layer, comprising a pre-buried ring (1), characterized in that: The inner ring wall of the embedded ring (1) is fixedly connected to a first airbag (11), one side of the outer wall of the embedded ring (1) is fixedly connected to a first air pump (13), and the input end of the first air pump (13) is connected to the inside of the first airbag (11), one end of the outer wall of the embedded ring (1) is fixedly connected to a mounting ring (2), the outer wall of the mounting ring (2) is fixedly connected to a plurality of electric telescopic rods (21), one end of the plurality of electric telescopic rods (21) is fixedly connected to a moving ring (22), the inner side wall of the moving ring (22) is fixedly connected to a plurality of sliders (23), and the outer wall of the moving ring (22) is fixedly connected to a side away from the electric telescopic rod (21). A plurality of connecting rods (24), one end of each of the connecting rods (24) is fixedly connected to a plug (25), a second air bag (3) is fixedly embedded in the rod wall of each of the connecting rods (24), a plurality of the second air bags (3) are fixedly connected to an air guide tube (31), and the air guide tube (31) is embedded in the movable ring (22), a connecting conduit (32) is fixedly connected between the plurality of air guide tubes (31), an output tube (33) is fixedly embedded in the bottom of the connecting conduit (32), a second air pump (34) is fixedly connected to the lower end of the outer wall of the mounting ring (2), and the output end of the second air pump (34) is connected to the output tube (33).

2. The receiving sealing device for a geological shield in a water-rich sand layer according to claim 1, characterized in that: A plurality of water-stopping strips (12) are embedded in the outer wall of the first airbag (11).

3. The receiving sealing device for a geological shield in a water-rich sand layer according to claim 1, characterized in that: A plurality of sliding grooves (101) are provided on the outer wall of the embedded ring (1) close to the mounting ring (2), and the sliding blocks (23) are all clamped in the sliding grooves (101).

4. The receiving and sealing device for a geological shield in a water-rich sand layer according to claim 1, characterized in that: The diameter of the plug (25) is larger than the diameter of the connecting rod (24).

5. The receiving and sealing device for a geological shield in a water-rich sand layer according to claim 1, characterized in that: The plurality of plugs (25) are all arranged in a cone shape.

Images