Grouting device based on water disaster prevention and control
By installing a water-absorbing mechanism and protective components on the grouting rod, the problems of grout dilution and premature solidification on the damp borehole wall of the grouting device are solved, thus achieving the reliability and stability of grouting and improving the roadway reinforcement and sealing effect.
Patent Information
- Application Number
- CN202511659728.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-02-24
AI Technical Summary
When the existing grouting equipment drills into fault zones or fracture development areas, the dampness of the borehole wall causes the grout to dilute and the temperature to drop, resulting in premature solidification of the grout and affecting the reinforcement and sealing effect of the roadway.
A water-absorbing mechanism is installed on the grouting rod, including a first water-absorbing component and a second water-absorbing component. By absorbing water vapor from the borehole wall and releasing heat, the humidity of the borehole wall is reduced. At the same time, a protective component and a triggering component are installed to ensure that the water-absorbing component is sealed before grouting to prevent grout from contacting the grout.
It effectively avoids grout dilution and premature solidification, improves the reliability and stability of grouting, ensures that the grout maintains good performance in the borehole, and enhances the roadway reinforcement and sealing effect.
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Figure CN121556891A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of grouting device technology, specifically a grouting device based on water hazard prevention. Background Technology
[0002] To improve the strength of the roadway and prevent the presence of channels for the flow of harmful substances such as water and gas, it is necessary to use a grouting device to inject grout into the surrounding rock of the roadway for active reinforcement and sealing, improve the mechanical properties of the surrounding rock, re-cement it from a broken state into a whole, and block the seepage channels.
[0003] When using the grouting device, the grouting rod is inserted into the grouting hole drilled in the roadway. Then, the grout is sent into the grouting rod through the external grouting equipment. The grout then enters the grouting hole and the cracks inside the hole through the grouting rod until the pressure inside the hole reaches the set value. At this point, the grouting is stopped and the grout is allowed to solidify, thus completing the sealing and reinforcement of the roadway.
[0004] While the aforementioned grouting device can effectively reinforce and seal the rock strata in tunnels, in actual use, when the grouting borehole is located in a fault zone or a fractured area, the rock mass itself contains a large number of fine fractures, forming a network for groundwater storage and transport. The borehole wall becomes damp due to its seepage characteristics. Therefore, during grouting, when the damp borehole wall comes into contact with the grout, it not only dilutes the grout and reduces its strength, but also lowers its temperature, causing the grout to solidify prematurely. In severe cases, it can even lead to grout segregation and incomplete solidification, which is detrimental to the reinforcement and sealing of the rock strata in the tunnel. Summary of the Invention
[0005] In view of this, the present invention proposes a grouting device based on water hazard prevention to solve the problems in the prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a grouting device based on water hazard prevention, comprising a grouting rod, wherein two sealed bags are fixedly sleeved on the outer surface of the grouting rod, and a water absorption mechanism is provided at one end of the grouting rod, wherein the water absorption mechanism is located at the insertion end of the grouting rod and is used to reduce the humidity inside the hole wall;
[0007] The water absorption mechanism includes an installation sleeve, which is fitted onto the outer surface of the grouting rod. A first water-absorbing element is fixedly fitted onto the outer surface of the installation sleeve. A hollow ring is fixedly connected to one end of the installation sleeve near the sealing bag. A second water-absorbing element is fixedly connected inside the hollow ring. Multiple water-absorbing holes are opened at the end of the hollow ring near the first water-absorbing element. The water-absorbing holes are covered by the first water-absorbing element. Both the first and second water-absorbing elements are used to absorb water vapor inside the hole wall.
[0008] Preferably, a number of mounting plates are fixedly connected to the side of the hollow ring near the sealing bag. The mounting plates are threaded with fastening bolts. The fastening bolts pass through the mounting plates by rotation, and when they pass through the mounting plates, they abut against the outer surface of the grouting rod.
[0009] Preferably, the water absorption mechanism further includes a protective component and a triggering component. The protective component includes a sealing sleeve that is slidably fitted onto the outer surface of the grouting rod. The sealing sleeve is located on the side of the mounting sleeve away from the first water absorption component. The triggering component drives the sealing sleeve to slide towards the first water absorption component after the grouting rod is inserted into the borehole and before grouting. The protective component is used to seal the first water absorption component before grouting.
[0010] Preferably, the triggering component includes a sliding block slidably connected to the side of the sealing sleeve away from the mounting sleeve. Two limiting blocks are fixedly connected to the sliding block. When the triggering component is not triggered, the limiting blocks abut against the grouting rod. A push rod is slidably connected to the grouting rod, which is located between the sliding block and the grouting rod. A guide block is fixedly connected to the push rod. An arc-shaped groove is formed at the bottom of the sliding block, and the top of the guide block contacts the arc-shaped groove. Several guide posts are fixedly connected inside the sealing sleeve. Each guide post is slidably connected to the mounting sleeve. A tension spring is sleeved on the outer surface of the guide post. The two ends of the tension spring are fixedly connected to the sealing sleeve and the mounting sleeve, respectively. When the push rod is pushed by the bottom of the hole, it drives the sliding block to slide under the cooperation of the guide block and the arc-shaped groove.
[0011] Preferably, the first absorbent element is an absorbent sponge, and the second absorbent element is quicklime.
[0012] Preferably, the end of the first water-absorbing element near the sealing sleeve is configured as a conical surface.
[0013] Preferably, a protective mesh is provided inside the water absorption hole.
[0014] Preferably, the hollow ring is made of metal.
[0015] Preferably, the guide block is configured with an arc-shaped surface on the side near the arc-shaped groove.
[0016] Preferably, the limiting block is provided with an anti-slip groove on the side that abuts against the grouting rod.
[0017] Compared with the prior art, the present invention provides a grouting device based on water hazard prevention, which has the following beneficial effects:
[0018] 1. This invention, by setting up a water absorption mechanism, utilizes the cooperation of the first water absorption component, hollow ring, second water absorption component, and water absorption hole during the insertion of the grouting rod into the borehole. This not only allows the first and second water absorption components to absorb moisture from the borehole wall, but also, through the heat released by the second water absorption component during water absorption, a certain degree of drying effect is achieved on the borehole wall under the heat conduction of the hollow ring. This reduces the humidity of the borehole wall and effectively avoids the phenomenon of premature solidification of the grout due to dilution of the grout during grouting in relatively damp boreholes. It overcomes the shortcomings of the prior art, ensuring that the grout maintains a better effect after entering the borehole, and improving the reliability of grouting.
[0019] 2. The present invention, through the setting of the first water-absorbing element, has good water absorption and elasticity. While it contacts the borehole wall and reduces the humidity inside the hole, its elasticity can adapt to holes of different sizes and uneven hole walls, thus improving its adaptability.
[0020] 3. By incorporating a protective component and a triggering component, this invention ensures that before the grouting rod enters the bottom of the borehole and before grouting begins, the mounting sleeve and the first water-absorbing component are sealed. The sealing of the first water-absorbing component also simultaneously seals the water-absorbing hole, ensuring that the first and second water-absorbing components are located within the sealing sleeve and hollow ring, preventing them from communicating with the outside world. This prevents the first and second water-absorbing components from coming into contact with the grout due to external interference or other uncontrollable factors during subsequent grouting, thus ensuring the stability of the grouting process. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a three-dimensional structural diagram of the water absorption mechanism of the present invention;
[0023] Figure 3 This is a diagram of the internal structure of the hollow ring of the present invention;
[0024] Figure 4 This is a three-dimensional structural diagram of the sealing sleeve of the present invention;
[0025] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;
[0026] Figure 6 This is a cross-sectional view of the sealing sleeve of the present invention.
[0027] In the picture:
[0028] 100. Grouting rod body; 101. Sealing bag;
[0029] 200. Water suction mechanism; 201. Mounting sleeve; 202. First water suction component; 203. Hollow ring; 204. Second water suction component; 205. Water suction hole; 206. Mounting plate; 207. Fastening bolt;
[0030] 211. Sealing sleeve; 212. Sliding block; 213. Limiting block; 214. Push rod; 215. Guide block; 216. Guide post; 217. Tension spring; 2121. Arc groove. Detailed Implementation
[0031] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.
[0032] Example 1
[0033] like Figures 1 to 6 As shown, this embodiment provides a grouting device based on water hazard prevention, including a grouting rod 100, two sealing bags 101 fixedly sleeved on the outer surface of the grouting rod 100, and a water absorption mechanism 200 provided at one end of the grouting rod 100. The water absorption mechanism 200 is located at the insertion end of the grouting rod 100 and is used to reduce the humidity inside the hole wall.
[0034] The water absorption mechanism 200 includes an installation sleeve 201, which is fitted onto the outer surface of the grouting rod 100. A first water absorption element 202 is fixedly fitted onto the outer surface of the installation sleeve 201. A hollow ring 203 is fixedly connected to one end of the installation sleeve 201 near the sealing bag 101. A second water absorption element 204 is fixedly connected inside the hollow ring 203. A plurality of water absorption holes 205 are opened at one end of the hollow ring 203 near the first water absorption element 202. The water absorption holes 205 are covered by the first water absorption element 202. Both the first water absorption element 202 and the second water absorption element 204 are used to absorb water vapor inside the hole wall.
[0035] Several mounting plates 206 are fixedly connected to the hollow ring 203 near the sealing bag 101. Fastening bolts 207 are threaded onto the mounting plates 206. The fastening bolts 207 pass through the mounting plates 206 by rotation, and when the fastening bolts 207 pass through the mounting plates 206, they abut against the outer surface of the grouting rod 100.
[0036] The water suction mechanism 200 also includes a protective component and a triggering component. The protective component includes a sealing sleeve 211, which is slidably sleeved on the outer surface of the grouting rod 100. The sealing sleeve 211 is located on the side of the mounting sleeve 201 away from the first water suction member 202. The triggering component drives the sealing sleeve 211 to slide towards the first water suction member 202 after the grouting rod 100 is inserted into the borehole and before grouting. The protective component is used to seal the first water suction member 202 before grouting.
[0037] The triggering assembly includes a sliding block 212 slidably connected to the sealing sleeve 211 on the side away from the mounting sleeve 201. Two limiting blocks 213 are fixedly connected to the sliding block 212. When the triggering assembly is not triggered, the limiting blocks 213 abut against the grouting rod body 100. A push rod 214 is slidably connected to the grouting rod body 100. The push rod 214 is located between the sliding block 212 and the grouting rod body 100. A guide block 215 is fixedly connected to the push rod 214. An arc-shaped groove 21 is formed at the bottom of the sliding block 212. 21. The top of the guide block 215 contacts the arc groove 2121. Several guide posts 216 are fixedly connected inside the sealing sleeve 211. Each guide post 216 is slidably connected to the mounting sleeve 201. A tension spring 217 is sleeved on the outer surface of the guide post 216. The two ends of the tension spring 217 are fixedly connected to the sealing sleeve 211 and the mounting sleeve 201 respectively. When the push rod 214 is pushed by the bottom of the hole, the sliding block 212 is driven to slide under the cooperation of the guide block 215 and the arc groove 2121.
[0038] Furthermore, the first absorbent component 202 is configured as an absorbent sponge, and the second absorbent component 204 is configured as quicklime. Both have good water absorption properties and are low in cost.
[0039] Furthermore, the end of the first water-absorbing component 202 near the sealing sleeve 211 is set as a conical surface. When the sealing sleeve 211 is performing sliding sealing work, the conical surface can guide the sealing sleeve 211 during sliding, thereby facilitating the sealing sleeve 211 to better seal the first water-absorbing component 202.
[0040] Optionally, a protective net is installed inside the water suction hole 205. When the hole is drilled on the roof of the roadway, the water suction hole 205 is set upward. Under the action of gravity, it can be ensured that the second water suction component 204 will not flow out of the water suction hole 205. If the hole is drilled on the side wall of the roadway, a protective net is needed to prevent the second water suction component 204 from flowing out of the hollow ring 203, so that the first water suction component 202 and the second water suction component 204 are isolated.
[0041] Furthermore, the hollow ring 203 is made of metal, such as copper, which has good thermal conductivity and improves the drying effect on the drilled hole.
[0042] Furthermore, the guide block 215 is configured with an arc-shaped surface on the side near the arc-shaped groove 2121. When the guide block 215 pushes the arc-shaped groove 2121, the contact surface between the two is set to arc-shaped, which can reduce the stress generated during extrusion, thereby improving the smoothness of extrusion and reducing the wear during extrusion.
[0043] Furthermore, the side of the limiting block 213 that abuts against the grouting rod 100 is provided with an anti-slip groove to improve the limiting abutment effect between the limiting block 213 and the grouting rod 100 when the triggering component is not triggered, and to prevent accidental disengagement.
[0044] The implementation of this embodiment not only absorbs moisture on the borehole wall through the first water-absorbing element 202 and the second water-absorbing element 204, but also generates a certain drying effect on the borehole wall through the heat released by the second water-absorbing element 204 when absorbing water, under the heat conduction of the hollow ring 203. This reduces the humidity of the borehole wall and effectively avoids the phenomenon of premature solidification of the grout due to dilution of the grout during grouting in relatively damp boreholes, thus overcoming the shortcomings of the prior art.
[0045] Example 2
[0046] like Figures 1 to 6 As shown, this embodiment provides a grouting device based on water hazard prevention, including a grouting rod 100, two sealing bags 101 fixedly sleeved on the outer surface of the grouting rod 100, and a water absorption mechanism 200 provided at one end of the grouting rod 100. The water absorption mechanism 200 is located at the insertion end of the grouting rod 100 and is used to reduce the humidity inside the hole wall.
[0047] The water absorption mechanism 200 includes an installation sleeve 201, which is fitted onto the outer surface of the grouting rod 100. A first water absorption element 202 is fixedly fitted onto the outer surface of the installation sleeve 201. A hollow ring 203 is fixedly connected to one end of the installation sleeve 201 near the sealing bag 101. A second water absorption element 204 is fixedly connected inside the hollow ring 203. A plurality of water absorption holes 205 are opened at one end of the hollow ring 203 near the first water absorption element 202. The water absorption holes 205 are covered by the first water absorption element 202. Both the first water absorption element 202 and the second water absorption element 204 are used to absorb water vapor inside the hole wall.
[0048] A number of mounting plates 206 are fixedly connected to the hollow ring 203 near the sealing bag 101. Fastening bolts 207 are threaded onto the mounting plates 206. The fastening bolts 207 penetrate the mounting plates 206 by rotation and abut against the outer surface of the grouting rod 100 when penetrating the mounting plates 206. The water suction mechanism 200 also includes a protective component and a triggering component. The protective component includes a sealing sleeve 211, which is slidably fitted onto the outer surface of the grouting rod 100. The sealing sleeve 211 is located on the side of the mounting sleeve 201 away from the first water suction element 202. The triggering component drives the sealing sleeve 211 to slide towards the first water suction element 202 after the grouting rod 100 is inserted into the borehole and before grouting. The protective component is used to seal the first water suction element 202 before grouting. The triggering component includes a sliding block 212 slidably connected to the side of the sealing sleeve 211 away from the mounting sleeve 201. Two limiting devices are fixedly connected to the sliding block 212. Position block 213, limiting block 213 abuts against grouting rod body 100 when the triggering component is not triggered. A push rod 214 is slidably connected to grouting rod body 100, located between sliding block 212 and grouting rod body 100. A guide block 215 is fixedly connected to push rod 214. An arc-shaped groove 2121 is formed at the bottom of sliding block 212, and the top of guide block 215 contacts the arc-shaped groove 2121. Several guides are fixedly connected inside sealing sleeve 211. Each guide post 216 is slidably connected to the mounting sleeve 201. A tension spring 217 is sleeved on the outer surface of the guide post 216. The two ends of the tension spring 217 are fixedly connected to the sealing sleeve 211 and the mounting sleeve 201 respectively. When the push rod 214 is pushed by the bottom of the hole, the sliding block 212 is driven to slide under the cooperation of the guide block 215 and the arc groove 2121. The first water-absorbing element 202 is set as a water-absorbing sponge, and the second water-absorbing element 204 is set as quicklime.
[0049] The hollow ring 203 has several heat dissipation holes on its top. In the first embodiment, it can be adapted to the drilling and grouting work on the top and side of the tunnel. In this embodiment, by opening several heat dissipation holes on the top of the hollow ring 203, it can be used for drilling and grouting work on the side. When in use, the heat dissipation holes face upwards, and under the influence of gravity, the second water-absorbing element 204 inside the hollow ring 203 will not overflow. At the same time, by opening the heat dissipation holes, the heat inside the hollow ring 203 can be better released. Although the adaptability is weaker, it improves its drying effect.
[0050] The working principle of all the content in the above embodiments is as follows:
[0051] Before operation, the water suction mechanism 200 is fitted onto the end of the grouting rod 100 that is inserted into the drill hole. When the mounting sleeve 201 slides to the appropriate position, several fastening bolts 207 are rotated so that the fastening bolts 207 pass through the mounting plate 206 and abut against the outer surface of the grouting rod 100, thereby completing the fixation of the mounting sleeve 201. At this time, the limiting block 213 abuts against the end face of the grouting rod 100, the tension spring 217 is in a stretched state, and the sealing sleeve 211 is located on the side of the mounting sleeve 201 away from the sealing bag 101, and does not cover the first water suction component 202.
[0052] The following explains the working principle and beneficial effects of the water absorption mechanism 200:
[0053] When the grouting rod 100 is inserted into the grouting borehole, the first water-absorbing element 202 at the inserted end of the grouting rod 100 has a diameter larger than the sealing bag 101. Therefore, the first water-absorbing element 202 contacts the borehole wall during insertion. Through the scraping action and water absorption characteristics of the first water-absorbing element 202, moisture on the borehole wall is absorbed. Simultaneously, through the second water-absorbing element 204 and the water-absorbing hole 205, the moisture absorbed by the first water-absorbing element 202 is absorbed by the second water-absorbing element 204 through the water-absorbing hole 205. During absorption, the second water-absorbing element 204 releases heat and transforms into quicklime. Furthermore, while absorbing water, the second water-absorbing element 204 also heats the hollow ring 203. As the hollow ring 203 moves through the borehole, the heat generated can dry the borehole wall, improving the dehumidification effect on the damp borehole wall.
[0054] By setting up a water absorption mechanism 200, during the insertion of the grouting rod 100 into the borehole, the cooperation of the first water absorption component 202, the hollow ring 203, the second water absorption component 204, and the water absorption hole 205 not only absorbs moisture from the borehole wall through the first water absorption component 202 and the second water absorption component 204, but also, through the heat released by the second water absorption component 204 during water absorption, a certain drying effect is produced on the borehole wall under the heat conduction of the hollow ring 203, reducing the humidity of the borehole wall. This effectively avoids the phenomenon of premature solidification of the grout due to dilution of the grout during grouting in relatively damp boreholes, thus overcoming the shortcomings of the existing technology. This allows the grout to maintain a better effect after entering the borehole, improving the reliability of grouting.
[0055] Furthermore, with the first water-absorbing element 202 in place, due to its excellent water absorption and elasticity, it can adapt to holes of different sizes and uneven hole walls while contacting the borehole wall and reducing the humidity inside the hole. This improves its adaptability.
[0056] Furthermore, before the grouting rod 100 enters the bottom of the borehole and before grouting begins, the grouting rod 100 approaches the bottom of the borehole, causing the push rod 214 to move closer to the bottom of the borehole. Pushed by the bottom of the borehole, the push rod 214 slides towards the sliding block 212, thereby causing the guide block 215 to slide. Through the arc-shaped groove 2121, the guide block 215, while sliding, can push the sliding block 212 upwards under the guidance of the arc-shaped groove 2121, thereby causing the limiting block 213 to move upwards. As the limiting block 213 moves upwards, it gradually shifts away from the contact point with the end of the grouting rod 100. At this time, under the tension of the tension spring 217, the sealing sleeve 211 is pulled to slide towards the mounting sleeve 201 under the guidance of the guide post 216. When sliding, the sealing sleeve 211 pushes the conical surface of the first water-absorbing element 202, so that the sealing sleeve 211 is compressed and enters between the mounting sleeve 201 and the sealing sleeve 211. When the tension spring 217 returns to the normal state, the sealing sleeve 211 completes the fitting of the mounting sleeve 201, the first water-absorbing element 202 and the outer surface of the hollow ring 203, and the inner surface of the sealing sleeve 211 is in contact with the outer surface of the mounting sleeve 201 and the hollow ring 203.
[0057] By setting up protective and triggering components, before the grouting rod 100 enters the bottom of the borehole and before grouting, the mounting sleeve 201 and the first water-absorbing component 202 are sealed. The sealing of the first water-absorbing component 202 also seals the water-absorbing hole 205. This ensures that the first water-absorbing component 202 and the second water-absorbing component 204 are located inside the sealing sleeve 211 and the hollow ring 203, preventing them from communicating with the outside world. This prevents the first water-absorbing component 202 and the second water-absorbing component 204 from coming into contact with the grout due to external interference or other uncontrollable factors during subsequent grouting, thus ensuring the stability of the grouting process.
[0058] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.
Claims
1. A grouting device for water hazard prevention, comprising a grouting rod (100), wherein two sealed bags (101) are fixedly sleeved on the outer surface of the grouting rod (100), characterized in that, A water-absorbing mechanism (200) is provided at one end of the grouting rod (100). The water-absorbing mechanism (200) is located at the insertion end of the grouting rod (100) and is used to reduce the humidity inside the hole wall. The water absorption mechanism (200) includes an installation sleeve (201), which is fitted onto the outer surface of the grouting rod body (100). A first water absorption element (202) is fixedly fitted onto the outer surface of the installation sleeve (201). A hollow ring (203) is fixedly connected to one end of the installation sleeve (201) near the sealing bag (101). A second water absorption element (204) is fixedly connected inside the hollow ring (203). A plurality of water absorption holes (205) are opened on one end of the hollow ring (203) near the first water absorption element (202). The water absorption holes (205) are covered by the first water absorption element (202). Both the first water absorption element (202) and the second water absorption element (204) are used to absorb water vapor in the hole wall.
2. The grouting device based on water hazard prevention according to claim 1, characterized in that: The hollow ring (203) is fixedly connected to a number of mounting plates (206) on the side near the sealing bag (101). The mounting plates (206) are threaded with fastening bolts (207). The fastening bolts (207) pass through the mounting plates (206) by rotation, and when the fastening bolts (207) pass through the mounting plates (206), they abut against the outer surface of the grouting rod (100).
3. The grouting device based on water hazard prevention according to claim 1, characterized in that: The water suction mechanism (200) further includes a protective component and a triggering component. The protective component includes a sealing sleeve (211), which is slidably sleeved on the outer surface of the grouting rod (100). The sealing sleeve (211) is located on the side of the mounting sleeve (201) away from the first water suction element (202). The triggering component drives the sealing sleeve (211) to slide towards the first water suction element (202) after the grouting rod (100) is inserted into the borehole and before grouting. The protective component is used to seal the first water suction element (202) before grouting.
4. A grouting device based on water hazard prevention according to claim 3, characterized in that: The triggering component includes a sliding block (212) slidably connected to the side of the sealing sleeve (211) away from the mounting sleeve (201). Two limiting blocks (213) are fixedly connected to the sliding block (212). When the triggering component is not triggered, the limiting blocks (213) abut against the grouting rod (100). A push rod (214) is slidably connected to the grouting rod (100). The push rod (214) is located between the sliding block (212) and the grouting rod (100). A guide block (215) is fixedly connected to the push rod (214). An arc-shaped groove is provided at the bottom of the sliding block (212). 2121), the top of the guide block (215) is in contact with the arc groove (2121), and a number of guide posts (216) are fixedly connected inside the sealing sleeve (211). Each guide post (216) is slidably connected to the mounting sleeve (201). A tension spring (217) is sleeved on the outer surface of the guide post (216). The two ends of the tension spring (217) are fixedly connected to the sealing sleeve (211) and the mounting sleeve (201) respectively. When the push rod (214) is pushed by the bottom of the hole, it drives the sliding block (212) to slide under the cooperation of the guide block (215) and the arc groove (2121).
5. A grouting device based on water hazard prevention according to claim 1, characterized in that: The first absorbent component (202) is configured as an absorbent sponge, and the second absorbent component (204) is configured as quicklime.
6. A grouting device based on water hazard prevention according to claim 1, characterized in that: The first water-absorbing element (202) is set as a conical surface at the end near the sealing sleeve (211).
7. A grouting device based on water hazard prevention according to claim 1, characterized in that: A protective net is installed inside the water absorption hole (205).
8. A grouting device for water hazard prevention according to claim 1, characterized in that: The hollow ring (203) is made of metal.
9. A grouting device based on water hazard prevention according to claim 4, characterized in that: The guide block (215) is configured with an arc-shaped surface on the side near the arc-shaped groove (2121).
10. A grouting device based on water hazard prevention according to claim 4, characterized in that: The limiting block (213) is provided with an anti-slip groove on the side that abuts against the grouting rod (100).