Tunnel grouting device

Abstract

The invention relates to the technical field of tunnel construction, and provides a tunnel grouting device. The tunnel grouting device can comprise a connecting pipe section and an elastic pipe section which are connected; the elastic pipe section comprises an elastic inner pipe and an elastic outer pipe, a plurality of steel wire fixing parts are arranged on the outer peripheral surface of the elastic inner pipe, and the plurality of steel wire fixing parts are arranged in the circumferential direction of the elastic inner pipe at intervals; the connecting pipe section comprises a connecting inner pipe and a connecting outer pipe, the connecting inner pipe is connected with the elastic inner pipe, and the connecting outer pipe is connected with the elastic outer pipe; the multiple steel wire winding and unwinding devices are arranged between the connecting inner pipe and the connecting outer pipe, are arranged in the circumferential direction of the connecting inner pipe at intervals and correspond to the steel wire fixing parts one to one; and the steel wires extend out of the steel wire winding and unwinding device and are connected with the steel wire fixing part. According to the tunnel grouting device provided by the embodiment, the length of the corresponding position of the elastic pipe section can be controlled, and then the bending direction and angle of the elastic pipe section are changed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly relates to a tunnel grouting device. Background Art

[0002] Grouting is one of the important processes in construction engineering. It is to inject certain curable slurries into the cracks or pores of rock and soil foundations by appropriate methods. Through replacement, filling, extrusion, etc., the physical and mechanical properties of rock and soil foundations are improved. In tunnel construction, grouting has the functions of anti-seepage, water plugging, consolidation, preventing the tunnel from collapsing, and improving the bearing capacity of the tunnel.

[0003] After drilling holes on the inner wall of the tunnel and injecting cement slurry, the cement slurry is pressed into the rock cracks or soil layer cracks through the pre-drilled holes to play a role in foundation reinforcement. In the actual operation process, the grouting space is often not a straight hole with a consistent aperture, and there is a possibility that the hole diameter changes or the hole is bent. The head of the existing grouting pipe cannot be flexibly adjusted in the grouting hole, resulting in poor grouting effect. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present invention provides a tunnel grouting device.

[0005] The present application provides a tunnel grouting device, which may include: a connecting pipe section and an elastic pipe section. One end of the connecting pipe section is connected to the elastic pipe section, and the other end is connected to the head of the grouting pipe. The elastic pipe section includes an elastic inner pipe and an elastic outer pipe. The elastic outer pipe is sleeved on the circumferential outer side of the elastic inner pipe. A plurality of wire fixing parts are provided on the outer circumferential surface of the elastic inner pipe, and the plurality of wire fixing parts are circumferentially spaced apart on the elastic inner pipe. The connecting pipe section includes a connecting inner pipe and a connecting outer pipe. The connecting outer pipe is sleeved on the circumferential outer side of the connecting inner pipe. The connecting inner pipe is connected to the elastic inner pipe, and the connecting outer pipe is connected to the elastic outer pipe. A plurality of wire winding and unwinding devices are provided between the connecting inner pipe and the connecting outer pipe. The plurality of wire winding and unwinding devices are circumferentially spaced apart on the connecting inner pipe and correspond to the wire fixing parts one by one. A plurality of wires, the plurality of wires correspond to the plurality of wire fixing parts one by one. The wires extend from the wire winding and unwinding devices and are connected to the wire fixing parts. Wherein, the wire winding and unwinding devices are used for winding and unwinding the wires.

[0006] In this way, by winding and unwinding the corresponding wires through the wire winding and unwinding devices, the length of the corresponding position of the elastic pipe section can be controlled, and further the bending direction and angle of the elastic pipe section can be changed.

[0007] Specifically, the number of steel wire fixing parts is 2, and the angle between the two steel wire fixing parts is 180 degrees, wherein steel wire fixing part 1, steel wire 1 and steel wire retracting device 1 correspond to each other, and steel wire fixing part 2, steel wire 2 and steel wire retracting device 2 correspond to each other. When steel wire retracting device 1 retracts steel wire 1, the elastic inner tube on one side of the steel wire retracting device becomes shorter, and the elastic tube section bends toward the side where the steel wire fixing part 1 is located. By adjusting the retracted length of steel wire retracting device 1 and the retracted length of steel wire retracting device 2, the bending direction and bending angle of the elastic tube section can be adjusted.

[0008] In some embodiments of the present application, a plurality of the steel wire fixing portions are evenly spaced around the elastic inner tube.

[0009] In some embodiments of the present application, the tunnel grouting device further includes: a plurality of steel wire ring groups, the plurality of steel wire ring groups corresponding one-to-one to the plurality of steel wire fixing portions, and arranged on the outer peripheral wall of the elastic inner tube, each of the steel wire ring groups being located on the side of the corresponding steel wire fixing portion facing the connecting pipe section; wherein, the steel wire ring group includes a plurality of steel wire rings, the plurality of steel wire rings being spaced apart in the direction of the connecting pipe section toward the elastic pipe section, the steel wire rings being provided with wire holes, and the steel wires being passed through the wire holes.

[0010] In some embodiments of the present application, the tunnel grouting device also includes: a plurality of strip air bags, the plurality of strip air bags are arranged on the outer peripheral surface of the elastic inner tube, the plurality of strip air bags are arranged at circumferential intervals on the elastic inner tube, and the extension direction of the strip air bags is the same as the extension direction of the elastic tube segment; a plurality of air pumps, the plurality of air pumps are arranged between the connecting inner tube and the connecting outer tube, the plurality of air pumps are arranged at circumferential intervals on the connecting inner tube, and correspond one-to-one to the strip air bags; wherein, the air pumps are used to inflate and deflate the corresponding strip air bags.

[0011] In some embodiments of the present application, a plurality of the strip-shaped airbags are evenly spaced around the elastic inner tube.

[0012] In some embodiments of the present application, the tunnel grouting device further includes: a visual sensor, which is provided at an end of the elastic pipe section away from the connecting pipe section.

[0013] In some embodiments of the present application, the tunnel grouting device further includes: a rubber ring, which is sleeved on the circumferential outer side of the connecting pipe section and sealed with the inner wall of the grouting hole.

[0014] In some embodiments of the present application, the connecting pipe section includes a first connecting section and a second connecting section. One end of the first connecting section is connected to the elastic pipe section, and the other end is connected to the second connecting section. The tunnel grouting device includes a first connecting portion and a second connecting portion. The first connecting portion is disposed between the elastic pipe section and the first connecting section to achieve detachable connection between the elastic pipe section and the first connecting section. The second connecting portion is disposed between the first connecting section and the second connecting section to achieve detachable connection between the first connecting section and the second connecting section.

[0015] In some embodiments of the present application, the first connecting portion includes a first connecting head and a second connecting head. The first connecting head is connected to the elastic pipe section, the second connecting head is connected to the first connecting section, and the first connecting head and the second connecting head are snap-connected.

[0016] In some embodiments of the present application, the tunnel grouting device further includes: a controller, and the controller is communicatively connected to the wire winding and unwinding device. Description of the Drawings

[0017] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present invention and, together with the specification, are used to explain the principles of the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the tunnel grouting device provided by some embodiments of the present application; Figure 2 For Figure 1 Internal schematic diagram of the elastic pipe section shown in Figure 3 For Figure 1 Cross-sectional view of the elastic pipe section and the fixed pipe section shown in Figure 4 For Figure 1 Cross-sectional view of the second connecting section shown in Figure 5 For Figure 4 Schematic diagram of the wire winding and unwinding device shown in Figure 6 For Figure 2 Schematic diagram of the rubber sleeve ring shown in Figure 7 Schematic diagram of the first connecting portion provided by some embodiments of the present application.

[0020] Reference numerals: 100, Tunnel grouting device; 110, Elastic pipe section; 111, Elastic inner pipe; 112, Elastic outer pipe; 121, First connection section; 122, Second connection section; 101, Fixed pipe section; 102, Visual sensor; 130, Steel wire; 140, Steel wire retracting and releasing device; 150, Steel wire loop; 160, Strip-shaped airbag; 170, Air pump; 180, Rubber sleeve ring; 181, Pressure sensor; 182, Air supply pump; 183, Pressure relief hole; 190, First connection part; 191, First connector; 1911, First locking tooth; 1912, First locking hole; 1913, Positioning projection; 1914, Quick connector; 1915, Sealing ring; 192, Second connector; 1921, Second locking tooth; 1922, Second locking hole; 1923, Positioning groove. Detailed implementation manners

[0021] In order to more clearly understand the above objects, features and advantages of the present invention, the solution of the present invention will be further described below. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Grouting is one of the important processes in construction engineering. It is to inject certain curable slurries into the cracks or pores of the rock and soil foundation by appropriate methods, and improve the physical and mechanical properties of the rock and soil foundation through replacement, filling, extrusion, etc. In tunnel construction, grouting has the functions of anti-seepage, water blocking, consolidation, preventing tunnel collapse and improving tunnel bearing capacity.

[0024] After drilling holes in the inner wall of the tunnel and injecting cement slurry, the cement slurry is pressed into the rock cracks or soil layer cracks through the pre-drilled holes to play a role in foundation reinforcement. In the actual operation process, the grouting space is often not a straight hole with a uniform aperture, and the hole may have the possibility of diameter change or bending. The head of the existing grouting pipe cannot be flexibly adjusted in the grouting hole, resulting in poor grouting effect.

[0025] To solve the above technical problems, please refer to Figures 1 to 5 , this application provides a tunnel grouting device 100. The tunnel grouting device 100 is connected to the head of the grouting pipe. The tunnel grouting device 100 includes a connecting pipe section, an elastic pipe section 110, a plurality of steel wire retracting and releasing devices 140 and a plurality of steel wires 130.

[0026] One end of the connecting pipe segment is connected to the elastic pipe segment 110, and the other end is connected to the head of the grouting pipe.

[0027] Both the connecting pipe segment and the elastic pipe segment 110 are double-layer pipes.

[0028] Specifically, the elastic pipe segment 110 includes an elastic inner pipe 111 and an elastic outer pipe 112. The elastic outer pipe 112 is sleeved on the circumferential outer side of the elastic inner pipe 111. A plurality of wire fixing parts are provided on the outer circumferential surface of the elastic inner pipe 111, and the plurality of wire fixing parts are arranged at intervals in the circumferential direction of the elastic inner pipe 111.

[0029] The connecting pipe segment includes a connecting inner pipe and a connecting outer pipe. The connecting outer pipe is sleeved on the circumferential outer side of the connecting inner pipe. The connecting inner pipe is connected to the elastic inner pipe 111, and the connecting outer pipe is connected to the elastic outer pipe 112.

[0030] The wire winding and unwinding device 140 is arranged between the connecting inner pipe and the connecting outer pipe. A plurality of wire winding and unwinding devices 140 are arranged at intervals in the circumferential direction of the connecting inner pipe and correspond to the wire fixing parts one by one. A plurality of wires 130 correspond to the plurality of wire fixing parts one by one. The wires 130 extend from the wire winding and unwinding device 140 and are connected to the wire fixing parts. Among them, the wire winding and unwinding device 140 is used to wind and unwind the wires 130.

[0031] The wire winding and unwinding device 140 can be formed by a motor. The output shaft of the motor is connected to the wire 130. When the motor rotates forward, the wire 130 is wound, and when the motor rotates backward, the wire 130 is unwound.

[0032] Among them, the number of the wire winding and unwinding devices 140 can be 2, 3, 4, 5, etc. The number of the wires 130 is the same as the number of the wire winding and unwinding devices 140.

[0033] In this way, by winding and unwinding the corresponding wires 130 through the wire winding and unwinding device 140, the length of the corresponding position of the elastic pipe segment 110 can be controlled, and further the bending direction and angle of the elastic pipe segment 110 can be changed.

[0034] Specifically, taking the number of the wire fixing parts as 2, and the included angle between the two wire fixing parts as 180 degrees. Among them, the wire fixing part one, the wire one and the wire winding and unwinding device one correspond to each other, the wire fixing part two, the wire two and the wire winding and unwinding device two correspond to each other. When the wire winding and unwinding device one winds the wire one, the elastic inner pipe 111 at the corresponding position of the wire winding and unwinding device one becomes shorter, and the elastic pipe segment 110 bends toward the side where the wire fixing part one is located. By adjusting the winding length of the wire winding and unwinding device one and the winding length of the wire winding and unwinding device two, the bending direction and bending angle of the elastic pipe segment 110 can be adjusted.

[0035] In some embodiments of the present application, the plurality of wire fixing parts are evenly arranged at intervals in the circumferential direction of the elastic inner pipe 111.

[0036] Specifically, when the number of wire fixing parts is 2, the included angle between adjacent wire fixing parts is 180°. When the number of wire fixing parts is 3, the included angle between adjacent wire fixing parts is 120°. When the number of wire fixing parts is 4, the included angle between adjacent wire fixing parts is 90°. When the number of wire fixing parts is 5, the included angle between adjacent wire fixing parts is 72°. When the number of wire fixing parts is 6, the included angle between adjacent wire fixing parts is 60°.

[0037] It should be noted that in the above embodiments, the number of wire fixing parts, wire 130, and wire winding and unwinding device 140 is the same and they correspond to each other one by one.

[0038] In this way, by evenly spacing multiple wire fixing parts circumferentially on the elastic inner tube 111, it can be ensured that the elastic inner tube 111 can be bent in multiple directions.

[0039] In some embodiments of the present application, the tunnel grouting device 100 further includes multiple wire loop groups. The multiple wire loop groups correspond to the multiple wire fixing parts one by one and are arranged on the outer peripheral wall of the elastic inner tube 111. Each wire loop group is located on the side of its corresponding wire fixing part facing the connecting pipe section. Among them, the wire loop group includes multiple wire 130 loops. The multiple wire 130 loops are spaced apart in the direction of the connecting pipe section facing the elastic pipe section 110. The wire 130 loop is provided with a wire 130 hole, and the wire 130 passes through the wire 130 hole.

[0040] Thus, by providing the wire loop group, it is possible to prevent the wire 130 between the elastic inner tube 111 and the elastic outer tube 112 from shaking and prevent the adjacent wires 130 from winding around each other, ensuring the normal use of the equipment.

[0041] It can be understood that the outer peripheral surface of the connecting inner tube can also be provided with a wire loop group, which can prevent the wire 130 between the connecting inner tube and the connecting outer tube from shaking and prevent the adjacent wires 130 from winding around each other, ensuring the normal use of the equipment.

[0042] In some embodiments of the present application, the tunnel grouting device 100 further includes: multiple strip-shaped air bags 160 and multiple air pumps 170. The multiple strip-shaped air bags 160 are arranged on the outer peripheral surface of the elastic inner tube 111. The multiple strip-shaped air bags 160 are spaced apart circumferentially on the elastic inner tube 111. The extending direction of the strip-shaped air bag 160 is the same as the extending direction of the elastic pipe section 110. The multiple air pumps 170 are arranged between the connecting inner tube and the connecting outer tube. The multiple air pumps 170 are spaced apart circumferentially on the connecting inner tube and correspond to the strip-shaped air bags 160 one by one. Among them, the air pump 170 is used to inflate and deflate the corresponding strip-shaped air bag 160.

[0043] Among them, it should be noted that the elastic inner tube 111 can be formed into a corrugated tube structure. By arranging a plurality of strip-shaped air bags 160, the elongation of the elastic inner tube 111 can be realized, and further the adjustment of the length of the elastic tube section 110 can be realized.

[0044] Furthermore, the plurality of strip-shaped air bags 160 are evenly spaced in the circumferential direction of the elastic inner tube 111. Thus, on the one hand, the uniformity of the elongation of the elastic inner tube 111 can be ensured, and on the other hand, by adjusting the lengths of different strip-shaped air bags 160, the adjustment of the length, bending direction and bending angle of the elastic inner tube 111 can be further realized.

[0045] In some embodiments of the present application, the tunnel grouting device 100 further includes a vision sensor 102, and the vision sensor 102 is arranged at one end of the elastic tube section 110 away from the connecting tube section.

[0046] Thus, by arranging the vision sensor 102 at the head of the elastic tube section 110, the grouting environment in front of the elastic tube section 110 can be identified, and then the length, bending angle and bending direction of the elastic tube section 110 can be debugged specifically.

[0047] In some embodiments of the present application, the tunnel grouting device 100 may further include a controller, and the controller is electrically connected to both the air pump 170 and the wire winding and unwinding device 140.

[0048] In some embodiments of the present application, please refer to Figure 1 and Figure 6 , the tunnel grouting device 100 further includes a rubber sleeve ring 180, and the rubber sleeve ring 180 is sleeved on the circumferential outer side of the connecting tube section and is sealed with the inner wall of the grouting hole.

[0049] Thus, the sealing performance of the tunnel grouting device 100 is realized by arranging the rubber sleeve ring 180.

[0050] Among them, the rubber sleeve ring 180 is formed into an annular air bag, and an air supply pump 182 and a pressure sensor 181 are arranged inside the annular air bag. The air pressure inside the annular air bag is detected by the pressure sensor 181, and then it is judged whether the annular air bag is sealed with the inner wall of the grouting hole.

[0051] A pressure relief hole 183 is arranged on the rubber sleeve ring 180, and an electronic valve is arranged on the pressure relief hole 183. By controlling the opening and closing of the electronic valve, the pressure relief of the rubber sleeve ring 180 is realized.

[0052] In some embodiments of the present application, please refer to Figure 1 and Figure 7, the connecting pipe section includes a first connecting section 121 and a second connecting section 122. One end of the first connecting section 121 is connected to the elastic pipe section 110, and the other end is connected to the second connecting section 122; the tunnel grouting device 100 includes a first connecting portion 190 and a second connecting portion. The first connecting portion 190 is provided between the elastic pipe section 110 and the first connecting section 121 to achieve a detachable connection between the elastic pipe section 110 and the first connecting section 121; the second connecting portion is provided between the first connecting section 121 and the second connecting section 122 to achieve a detachable connection between the first connecting section 121 and the second connecting section 122.

[0053] Thus, by providing the first connecting portion 190 and the second connecting portion, a detachable connection of the elastic pipe section 110, the first connecting section 121, and the second connecting section 122 is achieved.

[0054] Furthermore, the first connecting portion 190 includes a first connecting head 191 and a second connecting head 192. The first connecting head 191 is connected to the elastic pipe section 110, and the second connecting head 192 is connected to the first connecting section 121. The first connecting head 191 and the connecting head are snap-connected.

[0055] It can be understood that the second connecting portion may include a third connecting head and a fourth connecting head. The third connecting head is connected to the first connecting section 121, and the fourth connecting head is connected to the second connecting section 122. The first connecting head 191 and the second connecting head 192 are detachably connected.

[0056] In this way, in the specific implementation process, the first connecting section 121 can be removed, and the first connecting section 121 with different apertures or lengths can be replaced according to the actual situation to achieve the grouting effect of the grouting holes under different working conditions.

[0057] Among them, the first connecting head 191 may be provided with a first locking tooth 1911 and a first locking hole 1912, and the second connecting head 192 may be provided with a second locking hole 1922 that cooperates with the first locking tooth 1911 and a second locking tooth 1921 that cooperates with the first locking hole 1912. The first locking tooth 1911 is snap-connected to the second locking hole 1922, and the second locking tooth 1921 is snap-connected to the first locking hole 1912, thereby realizing the detachable connection between the first connecting head 191 and the second connecting head 192.

[0058] Furthermore, the first connecting head 191 may also be provided with a positioning protrusion 1913, and the second connecting portion is provided with a positioning groove 1923. The positioning groove 1923 cooperates with the positioning protrusion 1913 to position the first connecting head 191 and the second connecting head 192.

[0059] In a specific implementation process, the tunnel grouting device 100 further includes a fixed pipe section 101. The fixed pipe section 101 is connected between the elastic pipe section 110 and the first connection section 121. The fixed pipe section 101 is fixedly connected to the elastic pipe section 110, and the fixed pipe section 101 is connected to the first connection section 121 through a first connection portion 190. The air pump 170 is disposed inside the fixed pipe section 101. The steel wire 130 passes through the elastic pipe section 110, the fixed pipe section 101, the first connection section 121, and the second connection section 122. The steel wire winding device 140 is disposed inside the second connection section 122. The rubber sleeve ring 180 is sleeved on the outer circumference of the second connection section 122.

[0060] In order to achieve quick disassembly and quick connection between the steel wire 130 of the fixed pipe section 101 and the corresponding steel wire 130 of the first connection section 121, they are connected through a quick connector 1914.

[0061] In order to ensure the sealing performance of the gap between the first connection head 191 and the second connection head 192, the outer circumference of the gap between the first connection head 191 and the second connection head 192 is sleeved with a sealing ring 1915.

[0062] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0063] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0064] In the description of the embodiments of the present invention, the term "and / or" refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally represents an "or" relationship between the front and rear associated objects.

[0065] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, "connected" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the components are connected to each other and the relative positional relationship after connection remains unchanged. In addition, the orientation terms mentioned in the embodiments of the present invention, such as "inside", "outside", etc., are only with reference to the direction of the accompanying drawings. Therefore, the orientation terms are used to better and more clearly illustrate and understand the embodiments of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present invention.

[0066] In the description of the embodiments of the present invention, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element.

[0067] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tunnel grouting device, the tunnel grouting device being connected to the head of a grouting pipe, characterized in that, include: A connecting pipe section and an elastic pipe section, wherein one end of the connecting pipe section is connected to the elastic pipe section, and the other end is connected to the head of the grouting pipe; The elastic tube section includes an elastic inner tube and an elastic outer tube, wherein the elastic outer tube is sleeved on the circumferential outer side of the elastic inner tube, and the outer circumferential surface of the elastic inner tube is provided with a plurality of steel wire fixing portions, and the plurality of steel wire fixing portions are arranged at intervals in the circumferential direction of the elastic inner tube; The connecting pipe section includes a connecting inner pipe and a connecting outer pipe, wherein the connecting outer pipe is sleeved on the circumferential outer side of the connecting inner pipe, the connecting inner pipe is connected to the elastic inner pipe, and the connecting outer pipe is connected to the elastic outer pipe; A plurality of steel wire retracting and releasing devices, each of which is provided between the connecting inner tube and the connecting outer tube, and each of which is spaced apart in the circumferential direction of the connecting inner tube and corresponds one to one with the steel wire fixing portions; A plurality of steel wires, each of the plurality of steel wires corresponding to the plurality of steel wire fixing portions, the steel wires extending from the steel wire retracting and releasing device and connected to the steel wire fixing portions; Wherein, the steel wire retracting and releasing device is used for retracting and releasing the steel wire.

2. The tunnel grouting device according to claim 1, characterized in that, The plurality of steel wire fixing portions are evenly spaced in the circumferential direction of the elastic inner tube.

3. The tunnel grouting device according to claim 1, characterized in that, Also includes: a plurality of steel wire ring groups, each corresponding to each of the plurality of steel wire fixing portions, and provided on the outer peripheral wall of the elastic inner tube, each of the steel wire ring groups being located on a side of the corresponding steel wire fixing portion facing the connecting pipe section; The steel wire ring group includes a plurality of steel wire rings, which are spaced apart in a direction from the connecting pipe section toward the elastic pipe section. The steel wire rings are provided with steel wire holes, and the steel wires are passed through the steel wire holes.

4. The tunnel grouting device according to claim 1, characterized in that, Also includes: A plurality of strip-shaped airbags, each of which is provided on the outer circumferential surface of the elastic inner tube and spaced apart in the circumferential direction of the elastic inner tube, wherein the extending direction of the strip-shaped airbags is the same as the extending direction of the elastic tube segment; A plurality of air pumps, the plurality of air pumps being arranged between the connecting inner tube and the connecting outer tube, the plurality of air pumps being arranged at intervals in the circumferential direction of the connecting inner tube and corresponding one-to-one to the strip-shaped airbags; Wherein, the air pump is used to inflate and deflate the corresponding strip-shaped airbag.

5. The tunnel grouting device according to claim 4, characterized in that, The plurality of strip-shaped airbags are evenly spaced around the elastic inner tube.

6. The tunnel grouting device according to claim 1, characterized in that, Also includes: A visual sensor is provided at one end of the elastic tube section away from the connecting tube section.

7. The tunnel grouting device according to claim 1, characterized in that, Also includes: A rubber sleeve is sleeved on the circumferential outer side of the connecting pipe section and is sealed with the inner wall of the grouting hole.

8. The tunnel grouting device according to claim 1, characterized in that, The connecting pipe section includes a first connecting section and a second connecting section, one end of the first connecting section is connected to the elastic pipe section, and the other end is connected to the second connecting section; The tunnel grouting device includes a first connecting portion and a second connecting portion, wherein the first connecting portion is provided between the elastic tube segment and the first connecting segment to achieve a detachable connection between the elastic tube segment and the first connecting segment; The second connecting portion is provided between the first connecting segment and the second connecting segment to achieve a detachable connection between the first connecting segment and the second connecting segment.

9. The tunnel grouting device according to claim 8, characterized in that, The first connecting portion includes a first connector and a second connector. The first connector is connected to the elastic pipe section, the second connector is connected to the first connecting section, and the first connector and the second connector are snap-connected.

10. The tunnel grouting device according to claim 1, characterized in that, It further includes: a controller, which is communicatively connected to the wire winding and unwinding device.

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