An underground tunnel grouting hole sealing construction equipment
The problem of thread blockage at the grouting pipe interface was solved by using a limiting rod and an airbag structure, which enabled convenient disassembly and installation of the grouting pipe and improved the sealing performance and efficiency of the construction equipment.
Patent Information
- Application Number
- CN202423121282.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-18
AI Technical Summary
When disassembling existing underground tunnel grouting hole sealing equipment, the grouting pipe interface is prone to the slurry drying and solidifying in the thread groove, causing thread blockage and affecting the next construction and installation.
The system employs a limiting rod and an airbag structure. The limiting rod limits and fixes the interface plate through the channel, while the airbag is inflated by a micro air pump to wrap around the outer wall of the grouting pipe, preventing the grout from drying inside the threads. Combined with the rubber layer, this improves the sealing effect.
It effectively prevents thread blockage, simplifies the disassembly and installation process of grouting pipes, and improves construction efficiency and sealing performance.
Smart Images

Figure CN223594147U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of underground tunnel grouting hole hole sealing construction equipment, belong to water conservancy and hydropower engineering field. BACKGROUND
[0002] Underground tunnel grouting hole hole sealing construction is to prevent groundwater seepage and ensure the stability of tunnel structure by injecting grouting material to close hole or crack in underground tunnel, its construction method is to realize grouting hole sealing by using grouting hole hole sealing device to connect grouting pipe, grouting hole hole sealing device is mainly composed of sealing plug, integral closed structure, grouting pipe interface etc., sealing plug is inserted into hole, one end of grouting pipe is screw-mounted with grouting pipe interface, and hole sealing construction can be realized by grouting.
[0003] But the grouting pipe interface of most of the existing underground tunnel grouting hole hole sealing construction equipment in the market is connected with grouting pipe by thread, when grouting pipe is disassembled and removed after hole sealing construction is completed, there is excess mud attached in the inner wall thread groove of interface, and the inner wall of interface thread groove is blocked after mud hardens, which causes difficulty in installing grouting pipe next time. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of prior art, the utility model aims at providing a kind of underground tunnel grouting hole hole sealing construction equipment to solve the problems raised in the above background, when grouting pipe is removed, mud will not be solidified in thread, and there will be no thread blockage, which will not affect the installation of grouting pipe next time.
[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of underground tunnel grouting hole hole sealing construction equipment, including hole sealing column and grouting pipe, the bottom of the hole sealing column is fixedly connected with hole sealing plug, the top of the hole sealing column is equipped with grouting rod, the top of the grouting rod is fixedly connected with interface pipe, the top of the interface pipe is equipped with recess, the inner wall of the recess is rotatably connected with rotating rod, the outer wall of the rotating rod is fixedly sleeved with limiting rod, the outer wall of the grouting pipe is fixedly sleeved with limiting plate, the outer wall of the grouting pipe is equipped with thread surface, the outer wall of the thread surface is screw-threaded with thread cylinder, the bottom of the grouting pipe is fixedly connected with interface plate, the top of the interface plate is equipped with passageway, the outer wall of the interface pipe is provided with sealing component.
[0006] Further, the outer wall of the limiting rod is fixedly connected with spring, and one end of the spring is fixedly connected with the inner side wall of the recess.
[0007] Further, the outer wall of the thread cylinder is inclined surface, and the limiting rod is slidably sleeved with the passageway.
[0008] Further, the sealing component comprises a mounting plate fixedly sleeved on the outside of the interface pipe, an outer wall of the mounting plate is fixedly connected with a micro air pump, one side of the micro air pump is fixedly connected with an air pipe.
[0009] Further, one end of the air pipe penetrates the interface pipe and extends to the inside of the interface pipe, the air pipe is fixedly connected with the interface pipe, and one end of the air pipe is fixedly connected with an air bag.
[0010] Further, the air bag is in a "circular ring" structure, an outer wall of the air bag is fixedly connected with an inner wall of the interface pipe, and an inner wall of the air bag is fixedly connected with a rubber layer.
[0011] The utility model discloses beneficial effects:
[0012] 1. one end of the grouting pipe penetrates the interface pipe and inserts into the inside of the grouting rod, the limiting rod penetrates the channel at this time, then the threaded cylinder is rotated, the threaded cylinder moves downward on the grouting pipe, the bottom of the threaded cylinder can make a plurality of limiting rods rotate outward, the limiting rod plays a limiting and fixing role on the interface plate through the channel, and then the interface plate is installed on the interface pipe, and when the grouting pipe is taken down, the mud is not dry and solid in the screw thread, the threaded cylinder is not blocked, and the next construction and installation of the grouting pipe are not affected.
[0013] 2. the bottom of the grouting pipe inserts into the inside of the grouting rod through the interface pipe, the micro air pump can inflate through the air pipe, the air bag is inflated, the air bag is wrapped outside the grouting pipe, the air bag is tightly wrapped around the outer wall of the grouting pipe, the rubber layer can play a sealing role, and the sealing effect of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 It is the structural schematic diagram of the utility model one kind for underground tunnel grouting hole hole sealing construction equipment;
[0016] Figure 2 It is the structural schematic diagram of the utility model grouting pipe;
[0017] Figure 3 It is the inside structure schematic diagram of the utility model interface pipe;
[0018] Figure 4 It is Figure 3 the enlarged view of structure in A of the utility model;
[0019] In the figure: 1, hole sealing column; 2, hole sealing plug; 3, grouting rod; 4, interface pipe; 5, groove; 6, rotating rod; 7, spring; 8, limiting rod; 9, grouting pipe; 10, limiting plate; 11, threaded surface; 12, threaded cylinder; 13, interface plate; 14, channel; 15, mounting plate; 16, miniature air pump; 17, air pipe; 18, air bag; 19, rubber layer. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of underground tunnel grouting hole hole sealing construction equipment, including hole sealing column 1 and grouting pipe 9, one end of grouting pipe 9 is connected with the grouting mechanism outside, one end of grouting pipe 9 can out grout, the bottom of hole sealing column 1 is fixedly connected with hole sealing plug 2, hole sealing plug 2 is inserted into hole, hole sealing plug 2 can be plugged to hole, the top of hole sealing column 1 is equipped with grouting rod 3, the top of grouting rod 3 is fixedly connected with interface pipe 4, the bottom of grouting pipe 9 will be inserted into the inside of grouting rod 3 by interface pipe 4, the top of interface pipe 4 is equipped with groove 5, the inner wall of groove 5 is rotatably connected with rotating rod 6, the outer wall of rotating rod 6 is fixedly sleeved with limiting rod 8, the outer wall of grouting pipe 9 is fixedly sleeved with limiting plate 10, limiting plate 10 can play the role of limiting, and then threaded cylinder 12 moves upwards and is limited by limiting plate 10, cannot move to the middle part of grouting pipe 9, the outer wall of grouting pipe 9 is equipped with threaded surface 11, threaded surface 11 is threadedly sleeved with threaded cylinder 12, threaded cylinder 12 can rotate on threaded surface 11, and then threaded cylinder 12 can move downwards, the bottom of threaded cylinder 12 can make multiple limiting rods 8 rotate outward, the bottom of grouting pipe 9 is fixedly connected with interface plate 13, the top of interface plate 13 is equipped with channel 14, limiting rod 8 will play the role of limiting and fixing interface plate 13 by channel 14, the outer wall of interface pipe 4 is provided with sealing component.
[0022] The outer wall of limiting rod 8 is fixedly connected with spring 7, and one end of spring 7 is fixedly connected with the inner side wall of groove 5, spring 7 is in compression state, when the outer wall of limiting rod 8 is not limited by the outer wall of threaded cylinder 12, limiting rod 8 will reset by spring 7.
[0023] The outer wall of threaded cylinder 12 is inclined surface, and limiting rod 8 is slidably sleeved with channel 14, threaded cylinder 12 can rotate on threaded surface 11, and then threaded cylinder 12 can move downwards, the bottom of threaded cylinder 12 can make multiple limiting rods 8 rotate outward, limiting rod 8 will play the role of limiting and fixing interface plate 13 by channel 14.
[0024] The sealing component comprises a mounting plate 15 fixedly sleeved on the outside of the interface pipe 4, the outer wall of the mounting plate 15 is fixedly connected with a micro air pump 16, one side of the micro air pump 16 is fixedly connected with an air pipe 17, the micro air pump 16 is a small air pump, which is a mature device on the market at present, and thus will not be explained too much here, the micro air pump 16 can inflate, pressurize and the like through the air pipe 17.
[0025] One end of the air pipe 17 penetrates the interface pipe 4 and extends to the inside of the interface pipe 4, the air pipe 17 is fixedly connected with the interface pipe 4, one end of the air pipe 17 is fixedly connected with an air bag 18, the micro air pump 16 can inflate through the air pipe 17, and thus the air bag 18 will slowly swell.
[0026] The air bag 18 is a "circular ring" structure, the outer wall of the air bag 18 is fixedly connected with the inner wall of the interface pipe 4, the inner wall of the air bag 18 is fixedly connected with a rubber layer 19, the bottom of the grouting pipe 9 will be inserted into the inside of the grouting rod 3 through the interface pipe 4, and thus the air bag 18 is wrapped outside the grouting pipe 9, the air bag 18 swells to tightly wrap the outer wall of the grouting pipe 9, and the rubber layer 19 can play a sealing role.
[0027] Working principle: firstly, one end of the grouting pipe 9 penetrates the interface pipe 4 and is inserted into the inside of the grouting rod 3, at this time, the limiting rod 8 penetrates the channel 14, then the threaded cylinder 12 is rotated, the threaded cylinder 12 moves downward on the grouting pipe 9;
[0028] Secondly, the bottom of the threaded cylinder 12 can make the plurality of limiting rods 8 rotate outward, the limiting rod 8 plays a limiting and fixing role on the interface plate 13 through the channel 14, and thus the interface plate 13 is installed on the interface pipe 4;
[0029] Finally, the bottom of the grouting pipe 9 is inserted into the inside of the grouting rod 3 through the interface pipe 4, the micro air pump 16 can inflate through the air pipe 17, and thus the air bag 18 swells, and thus the air bag 18 is wrapped outside the grouting pipe 9, the air bag 18 swells to tightly wrap the outer wall of the grouting pipe 9, and the rubber layer 19 can play a sealing role.
[0030] Although the present specification is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A construction equipment for sealing a hole in a tunnel grouting, comprising a hole sealing column (1) and a grouting pipe (9), characterized in that: The bottom of the hole sealing column (1) is fixedly connected with a hole sealing plug (2), the top of the hole sealing column (1) is provided with a grouting rod (3), the top of the grouting rod (3) is fixedly connected with a connector pipe (4), the top of the connector pipe (4) is provided with a groove (5), the inner wall of the groove (5) is rotatably connected with a rotating rod (6), the outer wall of the rotating rod (6) is fixedly sleeved with a limiting rod (8), the outer wall of the grouting pipe (9) is fixedly sleeved with a limiting plate (10), the outer wall of the grouting pipe (9) is provided with a threaded surface (11), the outer wall of the threaded surface (11) is threadedly sleeved with a threaded cylinder (12), the bottom of the grouting pipe (9) is fixedly connected with a connector plate (13), the top of the connector plate (13) is provided with a channel (14), and the outer wall of the connector pipe (4) is provided with a sealing member.
2. The underground tunnel grouting hole sealing construction equipment according to claim 1, characterized in that: The outer wall of the limiting rod (8) is fixedly connected with a spring (7), and one end of the spring (7) is fixedly connected with the inner side wall of the groove (5).
3. The construction equipment for sealing a grouting hole of an underground tunnel according to claim 1, characterized in that: The outer wall of the threaded cylinder (12) is a slope, and the limiting rod (8) and the channel (14) are slidably sleeved.
4. The underground tunnel grouting hole sealing construction equipment according to claim 1, characterized in that: The sealing member comprises a mounting plate (15), the mounting plate (15) is fixedly sleeved outside the connector pipe (4), the outer wall of the mounting plate (15) is fixedly connected with a micro air pump (16), one side of the micro air pump (16) is fixedly connected with an air pipe (17).
5. The construction equipment for sealing a grouting hole of an underground tunnel according to claim 4, characterized in that: One end of the air pipe (17) penetrates through the connector pipe (4) and extends into the inside of the connector pipe (4), the air pipe (17) is fixedly connected with the connector pipe (4), and one end of the air pipe (17) is fixedly connected with an air bag (18).
6. The construction equipment for sealing a grouting hole of an underground tunnel according to claim 5, characterized in that: The air bag (18) is a "circular ring" structure, the outer wall of the air bag (18) is fixedly connected with the inner wall of the connector pipe (4), and the inner wall of the air bag (18) is fixedly connected with a rubber layer (19).