Grouting device

Abstract

The utility model provides a grouting device which comprises a grouting pipe provided with a first end and a second end which are oppositely arranged, the first end is located in a drill hole, the second end extends out of the drill hole, the grouting pipe is used for being communicated with the drill hole, and a first sealing structure is arranged between the first end of the grouting pipe and the drill hole; the cable body is arranged in the grouting pipe in a penetrating mode, the cable body is provided with a first end and a second end which are oppositely arranged, the first end of the cable body is used for being fixed in the drill hole, and the second end of the cable body extends out of the grouting pipe; the grouting assembly is arranged at the second end of the cable body, one end of the grouting assembly abuts against the inner wall of the roadway, the other end of the grouting assembly is fixedly connected with the second end of the cable body, the grouting assembly is provided with a grouting channel and a grouting hole which communicate with each other, and the grouting channel communicates with the grouting pipe; the end, away from the grouting channel, of the grouting hole extends in the direction away from the inner wall of the roadway. By means of the technical scheme, the problem that in the prior art, grout leakage is prone to occurring between a drill hole and an anchor cable can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting devices, and particularly to a grouting device. Background Art

[0002] During the process of coal mining, it is necessary to support the mine shaft. In the prior art, anchor cables are usually used to support the mine roadway. The anchor cable support has the advantages of a large anchoring range, high breaking force, convenient installation and construction, etc., and a grouting structure is used to grout the inside of the drill hole to achieve full-length anchoring. However, during the actual construction process, slurry leakage is extremely likely to occur between the drill hole and the anchor cable, thus affecting the grouting and anchoring effects. Content of the Utility Model

[0003] The utility model provides a grouting device to solve the problem that slurry leakage is extremely likely to occur between the drill hole and the anchor cable in the prior art.

[0004] The utility model provides a grouting device, which includes: a grouting pipe for being arranged in a drill hole. The grouting pipe has a first end and a second end arranged oppositely. The first end of the grouting pipe is located inside the drill hole, and the second end of the grouting pipe extends to the outside of the drill hole. The grouting pipe is used to communicate with the drill hole, and a first sealing structure is arranged between the first end of the grouting pipe and the drill hole; a cable body is arranged inside the grouting pipe. The cable body has a first end and a second end arranged oppositely. The first end of the cable body is used to be fixed inside the drill hole, and the second end of the cable body extends to the outside of the grouting pipe; a grouting assembly is arranged at the second end of the cable body. One end of the grouting assembly abuts against the inner wall of the roadway, and the other end of the grouting assembly is fixedly connected to the second end of the cable body. The grouting assembly has a grouting channel and a grouting hole which are communicated with each other. The grouting channel is communicated with the grouting pipe, and one end of the grouting hole far from the grouting channel extends along the direction away from the inner wall of the roadway.

[0005] Further, the grouting assembly includes: a receiving member, one side of which abuts against the inner wall of the roadway; a grouting structure which has a grouting channel and a first end and a second end arranged oppositely. The first end of the grouting structure abuts against the other side of the receiving member, and the second end of the grouting structure is fixedly connected to the second end of the cable body, and the second end of the grouting pipe extends into the grouting channel.

[0006] Further, the grouting structure has a connecting channel which is communicated with the grouting channel. The connecting channel is arranged on the side of the grouting channel far from the grouting pipe. The cable body is fixed inside the connecting channel. The cable body sequentially passes through the grouting channel and the connecting channel, and a second sealing structure is arranged between the connecting channel and the cable body.

[0007] Further, the grouting structure includes: a grouting block having a grouting channel, grouting holes, connecting holes, and locking holes. The connecting holes are provided between the grouting channel and the locking holes. The connecting holes and the locking holes cooperate to form a connecting channel. A second sealing structure is provided between the connecting holes and the cable body. The diameter of the locking holes gradually increases in a direction away from the connecting holes; a wedge, provided between the locking holes and the cable body, and the structure of the wedge is adapted to the structure of the locking holes.

[0008] Further, the angle between the grouting holes and the axis of the grouting structure is set between 45° and 75°.

[0009] Further, the first sealing structure includes a sealing body and a plurality of sealing rings. The sealing body is sleeved on the first end of the grouting pipe, and the plurality of sealing rings are axially spaced apart on the sealing body.

[0010] Further, the outer diameter of the sealing ring is larger than the diameter of the drilling hole, and the difference between the outer diameter of the sealing ring and the diameter of the drilling hole is set between 1 mm and 8 mm.

[0011] Further, the first sealing structure and the second sealing structure are made of flexible materials.

[0012] Further, the length of the first sealing structure is set between 50 mm and 200 mm.

[0013] Further, the second end of the grouting pipe is threadedly connected to the grouting channel.

[0014] Applying the technical solution of the present utility model, the grouting pipe is arranged in the drilling hole, and a first sealing structure is arranged between the grouting pipe and the drilling hole. The cable body is threaded through the grouting pipe. The grouting channel of the grouting assembly is communicated with the grouting pipe and the grouting holes. During the grouting process, the staff injects slurry into the grouting channel, the grouting pipe, and the drilling hole through the grouting holes, so as to realize the support of the roadway. Among them, the first sealing structure can stop the slurry and prevent slurry leakage, thereby ensuring the grouting and anchoring effects, and further ensuring the support and reinforcement effects on the surrounding rock of the roadway. And the grouting holes are inclined, which is convenient for the grouting holes to communicate with the grouting device, so as to facilitate the delivery of the slurry into the grouting holes, improve the grouting efficiency, and reduce the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 shows a schematic structural diagram of the grouting device provided by the present utility model;

[0017] Figure 2 shows Figure 1 a partially enlarged view at location A in

[0018] Among them, the above-mentioned drawings include the following reference numerals:

[0019] 10, grouting pipe;

[0020] 20, cable body;

[0021] 30, grouting assembly;

[0022] 31, receiving member;

[0023] 32, grouting structure;

[0024] 321, grouting block;

[0025] 3211, grouting channel;

[0026] 3212, grouting hole;

[0027] 3213, connecting channel;

[0028] 32131, connecting hole; 32132, locking hole;

[0029] 322, collet;

[0030] 40, first sealing structure; 41, sealing main body; 42, sealing ring;

[0031] 50, second sealing structure;

[0032] 1, drilling hole. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present utility model provides a grouting device, which includes a grouting pipe 10, a cable body 20, and a grouting assembly 30. The grouting pipe 10 is configured to be disposed in a borehole 1. The grouting pipe 10 has a first end and a second end disposed opposite to each other. The first end of the grouting pipe 10 is located in the borehole 1, and the second end of the grouting pipe 10 extends to the outside of the borehole 1. The grouting pipe 10 is used to communicate with the borehole 1, and a first sealing structure 40 is provided between the first end of the grouting pipe 10 and the borehole 1. The cable body 20 is threaded through the grouting pipe 10. The cable body 20 has a first end and a second end disposed opposite to each other. The first end of the cable body 20 is used to be fixed in the borehole 1, and the second end of the cable body 20 extends to the outside of the grouting pipe 10. The grouting assembly 30 is disposed at the second end of the cable body 20. One end of the grouting assembly 30 abuts against the inner wall of the roadway, and the other end of the grouting assembly 30 is fixedly connected to the second end of the cable body 20. The grouting assembly 30 has a grouting channel 3211 and a grouting hole 3212 that communicate with each other. The grouting channel 3211 is communicated with the grouting pipe 10, and one end of the grouting hole 3212 away from the grouting channel 3211 extends in a direction away from the inner wall of the roadway. In this application, the grouting hole 3212 is communicated with a grouting device, and the grouting device is used to convey slurry into the grouting hole 3212.

[0035] Applying the technical solution of this application, the grouting pipe 10 is disposed in the borehole 1, and a first sealing structure 40 is provided between the grouting pipe 10 and the borehole 1. The cable body 20 is threaded through the grouting pipe 10. The grouting channel 3211 of the grouting assembly 30 is communicated with the grouting pipe 10, and the grouting channel 3211 is communicated with the grouting hole 3212. Among them, during the grouting process, the staff injects slurry into the grouting channel 3211, the grouting pipe 10, and the borehole 1 through the grouting hole 3212, so as to realize the support of the roadway. Among them, the first sealing structure 40 can block the slurry and prevent the slurry from leaking, so as to ensure the grouting and anchoring effects, and further ensure the support and reinforcement effects on the surrounding rock of the roadway. And, the grouting hole 3212 is inclined. With such a setting, it is convenient for the grouting hole 3212 to communicate with the grouting device, so as to facilitate the conveyance of the slurry into the grouting hole 3212, improve the grouting efficiency, and reduce the labor intensity of the staff.

[0036] Specifically, in this application, the first end of the cable body 20 is a resin anchoring section, the middle part of the cable body 20 is a grouting anchoring section, and the second end of the cable body 20 is an exposed section.

[0037] In this application, the diameter of the grouting pipe 10 is 4 mm larger than the diameter of the cable body 20. With such a setting, it is convenient for the slurry to flow and avoid blockage of the slurry.

[0038] Optionally, the grouting pipe 10 can be a metal pipe or a non-metal pipe.

[0039] Further, in this application, the cable body 20 is made of 1×7 or 1×19 steel strands.

[0040] Among them, the grouting assembly 30 includes a receiving member 31 and a grouting structure 32. One side of the receiving member 31 abuts against the inner wall of the roadway. With such a setting, the receiving member 31 can press tightly against the roadway surface, provide a pre-tightening force for the cable body 20, and spread the pre-tightening force into the coal and rock mass around the cable body 20, ensuring the support effect of the grouting device on the surrounding rock of the roadway.

[0041] The grouting structure 32 has a grouting channel 3211 and a first end and a second end arranged oppositely. The first end of the grouting structure 32 abuts against the other side of the receiving member 31, the second end of the grouting structure 32 is fixedly connected to the second end of the cable body 20, and the second end of the grouting pipe 10 extends into the grouting channel 3211. With such a setting, it is convenient to inject slurry into the grouting channel 3211 and the grouting pipe 10, and the structure is simple and the operation is convenient.

[0042] Specifically, the grouting structure 32 has a connecting channel 3213, the connecting channel 3213 is communicated with the grouting channel 3211, the connecting channel 3213 is arranged on the side of the grouting channel 3211 away from the grouting pipe 10, the cable body 20 is fixed in the connecting channel 3213, the cable body 20 is sequentially arranged in the grouting channel 3211 and the connecting channel 3213, and there is a second sealing structure 50 between the connecting channel 3213 and the cable body 20. With such a setting, it can prevent the slurry from leaking from the gap between the cable body 20 and the grouting structure 32, further avoiding slurry leakage, and thus further ensuring the grouting and anchoring effects.

[0043] Further, the grouting structure 32 includes a grouting block 321 and a clamping piece 322. The grouting block 321 has a grouting channel 3211, a grouting hole 3212, a connecting hole 32131 and a locking hole 32132. The connecting hole 32131 is arranged between the grouting channel 3211 and the locking hole 32132, the connecting hole 32131 and the locking hole 32132 cooperate to form the connecting channel 3213, and the second sealing structure 50 is arranged between the connecting hole 32131 and the cable body 20. With such a setting, it is convenient to assemble the grouting structure 32 and at the same time convenient to process the grouting block 321.

[0044] The diameter of the locking hole 32132 gradually increases in the direction away from the connecting hole 32131. The clamping piece 322 is arranged between the locking hole 32132 and the cable body 20, and the structure of the clamping piece 322 is adapted to the structure of the locking hole 32132. With such a setting, the stability and safety of the anchoring can be ensured.

[0045] Specifically, in this application, the shape of the grouting block 321 is cylindrical.

[0046] Moreover, one end of the grouting block 321 abuts against the receiving member 31. The end of the grouting block 321 has an arc-shaped protrusion, and the receiving member 31 has an arc-shaped groove. The structures of the arc-shaped protrusion and the arc-shaped groove are adapted to each other. With such a setting, it is convenient for the grouting block 321 to abut against the receiving member 31 and for centering.

[0047] Among them, the diameter of the connection hole 32131 is larger than the diameter of the cable body 20. The difference between the diameter of the connection hole 32131 and the diameter of the cable body 20 is set between 2 mm and 5 mm. That is, in this application, the connection hole 32131 is adapted to the structure of the second sealing structure 50.

[0048] With such a setting, when the difference between the diameter of the connection hole 32131 and the diameter of the cable body 20 is less than 2 mm, it is difficult to assemble the second sealing structure 50; when the difference between the diameter of the connection hole 32131 and the diameter of the cable body 20 is greater than 5 mm, gaps are likely to occur between the connection hole 32131 and the cable body 20, and a second sealing structure 50 with a larger size is required, resulting in an increase in sealing cost. Therefore, the difference between the diameter of the connection hole 32131 and the diameter of the cable body 20 is set between 2 mm and 5 mm, which not only facilitates the assembly of the grouting block 321 and the second sealing structure 50, but also can prevent the slurry from leaking and reduce the sealing cost.

[0049] Optionally, the difference between the diameter of the connection hole 32131 and the diameter of the cable body 20 can be set to 2 mm, 4 mm or 5 mm. In this application, the difference between the diameter of the connection hole 32131 and the diameter of the cable body 20 is set to 4 mm.

[0050] Furthermore, in this application, the second sealing structure 50 is a tubular structure, and the second sealing structure 50 is sleeved on the cable body 20.

[0051] Optionally, the diameter of the connection hole 32131 gradually decreases in the direction away from the locking hole 32132. With such a setting, it is convenient to process the connection hole 32131 and the locking hole 32132; or, the diameter of the connection hole 32131 is the same at all positions along the axial direction. With such a setting, it is convenient to assemble the second sealing structure 50.

[0052] Among them, in this application, a limiting protrusion is provided at one end of the connection hole 32131 away from the locking hole 32132 to limit the second sealing structure 50.

[0053] Specifically, the included angle between the grouting hole 3212 and the axis of the grouting structure 32 is set between 45° and 75°. When the included angle between the grouting hole 3212 and the axis of the grouting structure 32 is less than 45°, it is not easy for the grouting hole 3212 to communicate with the grouting device, resulting in difficult grouting; when the included angle between the grouting hole 3212 and the axis of the grouting structure 32 is greater than 75°, it is difficult to machine the grouting hole 3212; therefore, the included angle between the grouting hole 3212 and the axis of the grouting structure 32 is set between 45° and 75°, which facilitates the connection between the grouting hole 3212 and the grouting device and is also convenient for machining the grouting hole 3212, with a simple structure and convenient operation.

[0054] Optionally, the included angle between the grouting hole 3212 and the axis of the grouting structure 32 can be 45°, 60° or 75°. In this application, the included angle between the grouting hole 3212 and the axis of the grouting structure 32 is 60°.

[0055] Among them, the first sealing structure 40 includes a sealing main body 41 and a plurality of sealing rings 42. The sealing main body 41 is sleeved on the first end of the grouting pipe 10, and the plurality of sealing rings 42 are axially spaced apart on the sealing main body 41. With such a setting, the sealing effect of the first sealing structure 40 can be ensured, and further leakage of the grout can be avoided.

[0056] Further, the outer diameter of the sealing ring 42 is greater than the diameter of the drilling hole 1, and the difference between the outer diameter of the sealing ring 42 and the diameter of the drilling hole 1 is set between 1 mm and 8 mm.

[0057] When the difference between the outer diameter of the sealing ring 42 and the diameter of the drilling hole 1 is less than 1 mm, the first sealing structure 40 cannot effectively seal the drilling hole 1. When the difference between the outer diameter of the sealing ring 42 and the diameter of the drilling hole 1 is greater than 8 mm, it is difficult to assemble the first sealing structure 40, increasing the installation difficulty of the grouting device; therefore, the difference between the outer diameter of the sealing ring 42 and the diameter of the drilling hole 1 is set between 1 mm and 8 mm, which can not only ensure the sealing effect between the drilling hole 1 and the grouting pipe 10, but also facilitate the assembly of the first sealing structure 40 and the grouting pipe 10, reducing the installation difficulty of the grouting device.

[0058] Optionally, the difference between the outer diameter of the sealing ring 42 and the diameter of the drilling hole 1 can be 1 mm, 5 mm or 8 mm. In this application, the difference between the outer diameter of the sealing ring 42 and the diameter of the drilling hole 1 is 5 mm.

[0059] Specifically, the first sealing structure 40 and the second sealing structure 50 are made of flexible materials. With such a setting, it is convenient to install the first sealing structure 40 and the second sealing structure 50, and at the same time, the sealing effects of the first sealing structure 40 and the second sealing structure 50 are ensured.

[0060] Optionally, the first sealing structure 40 and the second sealing structure 50 can be made of rubber or soft plastic materials.

[0061] Among them, the length of the first sealing structure 40 is set between 50 mm and 200 mm. With such a setting, when the length of the first sealing structure 40 is less than 50 mm, the sealing effect of the first sealing structure 40 is poor and it cannot effectively avoid slurry leakage; when the length of the first sealing structure 40 is greater than 200 mm, it will lead to an increase in the sealing cost; therefore, the length of the first sealing structure 40 is set between 50 mm and 200 mm, so that while ensuring the sealing effect, the sealing cost can be reduced.

[0062] Furthermore, the second end of the grouting pipe 10 is threadedly connected to the grouting channel 3211. With such a setting, it is convenient to connect the grouting pipe 10 to the grouting channel 3211, and at the same time, the stability of the connection between the grouting pipe 10 and the grouting channel 3211 can be ensured.

[0063] Optionally, the second end of the grouting pipe 10 and the grouting channel 3211 can be fixed by welding.

[0064] Moreover, in this application, the diameter of the grouting channel 3211 is more than 10 mm larger than the diameter of the cable body 20. With such a setting, it is convenient for the slurry to flow through and avoid slurry blockage.

[0065] Among them, in order to better understand the solution of this application, the usage process of the grouting device is as follows:

[0066] 1. Carry out drilling 1 construction according to the design requirements;

[0067] 2. Sequentially put resin anchoring agents and the cable body 20 into the drilling 1, and stir the resin for end anchoring;

[0068] 3. Assemble the grouting pipe 10, the first sealing structure 40, the receiving member 31, the grouting block 321, the second sealing structure 50, put them on the cable body 20 in the drilling 1, and then fix the wedge 322 in the locking hole 32132;

[0069] 4. After tensioning and pre-tightening, grout through the grouting hole 3212.

[0070] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0071] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the description. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof in subsequent drawings is not required.

[0072] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0073] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc. can be used here to describe the spatial positional relationships between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0074] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present utility model.

[0075] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A grouting device, characterized in that, The grouting device includes: A grouting pipe (10) for being arranged in a drill hole (1). The grouting pipe (10) has a first end and a second end arranged oppositely. The first end of the grouting pipe (10) is located in the drill hole (1), and the second end of the grouting pipe (10) extends outside the drill hole (1). The grouting pipe (10) is used for communicating with the drill hole (1), and a first sealing structure (40) is arranged between the first end of the grouting pipe (10) and the drill hole (1); A cable body (20) is inserted into the grouting pipe (10). The cable body (20) has a first end and a second end arranged oppositely. The first end of the cable body (20) is used for being fixed in the drill hole (1), and the second end of the cable body (20) extends outside the grouting pipe (10); A grouting assembly (30). The grouting assembly (30) is arranged at the second end of the cable body (20). One end of the grouting assembly (30) abuts against the inner wall of the roadway, and the other end of the grouting assembly (30) is fixedly connected to the second end of the cable body (20). The grouting assembly (30) has a grouting channel (3211) and a grouting hole (3212) that communicate with each other. The grouting channel (3211) is communicated with the grouting pipe (10), and one end of the grouting hole (3212) far from the grouting channel (3211) extends in a direction away from the inner wall of the roadway.

2. The grouting device according to claim 1, characterized in that, The grouting assembly (30) includes: A receiving member (31), one side of which abuts against the inner wall of the roadway; A grouting structure (32) having the grouting channel (3211) and a first end and a second end arranged oppositely. The first end of the grouting structure (32) abuts against the other side of the receiving member (31), and the second end of the grouting structure (32) is fixedly connected to the second end of the cable body (20), and the second end of the grouting pipe (10) extends into the grouting channel (3211).

3. The grouting device according to claim 2, characterized in that, The grouting structure (32) has a connecting channel (3213) that communicates with the grouting channel (3211). The connecting channel (3213) is arranged on a side of the grouting channel (3211) far from the grouting pipe (10). The cable body (20) is fixed in the connecting channel (3213). The cable body (20) is sequentially inserted into the grouting channel (3211) and the connecting channel (3213), and a second sealing structure (50) is arranged between the connecting channel (3213) and the cable body (20).

4. The grouting device according to claim 3, characterized in that, The grouting structure (32) includes: The grouting block (321), the grouting block (321) has the grouting channel (3211), the grouting hole (3212), the connecting hole (32131) and the locking hole (32132), the connecting hole (32131) is arranged between the grouting channel (3211) and the locking hole (32132), the connecting hole (32131) and the locking hole (32132) cooperate to form the connecting channel (3213), the second sealing structure (50) is arranged between the connecting hole (32131) and the cable body (20), and the diameter of the locking hole (32132) gradually increases in the direction away from the connecting hole (32131); The wedge (322) is arranged between the locking hole (32132) and the cable body (20), and the structure of the wedge (322) is adapted to the structure of the locking hole (32132).

5. The grouting device according to claim 2, wherein The included angle between the axis of the grouting hole (3212) and the axis of the grouting structure (32) is set between 45° and 75°.

6. The grouting device according to claim 1, wherein, The first sealing structure (40) includes a sealing main body (41) and a plurality of sealing rings (42), the sealing main body (41) is sleeved on the first end of the grouting pipe (10), and the plurality of sealing rings (42) are axially spaced apart on the sealing main body (41).

7. The grouting device according to claim 6, wherein The outer diameter of the sealing ring (42) is larger than the diameter of the drilling hole (1), and the difference between the outer diameter of the sealing ring (42) and the diameter of the drilling hole (1) is set between 1 mm and 8 mm.

8. The grouting device according to claim 3, characterized in that, The first sealing structure (40) and the second sealing structure (50) are made of flexible materials.

9. The grouting device according to claim 1, wherein, The length of the first sealing structure (40) is set between 50 mm and 200 mm.

10. The grouting device according to claim 2, wherein, The second end of the grouting pipe (10) is threadedly connected to the grouting channel (3211).

Images