A cave treatment drilling apparatus

Abstract

The application discloses a kind of cave processing drilling devices, it is related to cave processing technical field.The cave processing drilling device of the application includes the drilling mechanism of vertical arrangement, and the drilling mechanism bottom is provided with drilling tooth, under the drive of drilling mechanism, it can slowly drill in;Drilling mechanism upper portion is vertically communicated and is installed with feed pipe, slurry flows through feed pipe, through grouting chamber, guide slot inner wall, and flows out through discharge port;Feed pipe lower end is sealed by external sealing mechanism, sealing block is sealed to feed pipe under the cooperation of grouting chamber, and then the top of grouting chamber is formed to be sealed, positioning sliding sleeve is coaxially sleeved and connected in the intercommunication area between limiting groove and positioning groove, and sealing mechanism is driven to slide up and down by positioning sliding sleeve;Drilling mechanism lower portion is transversely installed with stirring mechanism along its circumference equidistantly, under the action of centrifugal force, stirring mechanism extends to the outside of drilling mechanism, under the drive of drilling mechanism, it stirs the slurry of pouring, so that it is mixed uniformly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of karst cave treatment, and more particularly to a drilling device for karst cave treatment. BACKGROUND

[0002] During the construction of pile foundation, karst caves are often encountered. Since pile foundation excavation is a concealed underground project, karst caves cause great inconvenience to the construction process, and effective and reliable measures must be taken to ensure the smooth and safe progress of the construction.

[0003] Currently, there are four methods for drilling pile construction in karst hole regions: mud wall building method, static pressure chemical grouting method, casing following method and energy transmission method. In the prior art, the mud wall building method first drills a hole through a drill bit. However, when drilling into the top of the karst cave, the drill bit is first removed and mud is injected into the karst cave through a feeding pipe. After the injection is completed, the drill bit is sent into the hole and drilling continues to achieve continuous drilling to the required depth. The stability of the hole wall can be ensured by the injected mud. However, since the mud injection operation and the drilling operation require the exchange of operation equipment, the mud material equipment and the drilling equipment cannot be matched with each other. The drill bit must be completely removed before the grouting operation can be performed, and similarly, the grouting feeding equipment must be removed before the drill bit equipment can be inserted again to continue the drilling operation. Therefore, the construction efficiency is greatly reduced, and the operation of the workers is greatly inconvenient. Therefore, it is necessary to develop a device for treating karst caves in drilling that has high treatment efficiency and higher wall stability. SUMMARY

[0004] 1. Technical problem to be solved by the application

[0005] In view of the problem that the existing mud injection operation and drilling operation require the exchange of operation equipment, resulting in low efficiency, the present application provides a drilling device for karst cave treatment, which includes a drilling mechanism arranged vertically. The drilling mechanism is provided with drilling teeth at the bottom and can slowly drill under the drive of the drilling mechanism. A feeding pipe is vertically connected and installed on the upper part of the drilling mechanism. Mud flows through the feeding pipe, the grouting chamber and the inner wall of the material guide groove, and flows out through the discharge port, so that if a karst cave is encountered during the drilling of the pile foundation, mud can be injected at any time to reinforce the pile hole drilling, without the need to remove the drilling mechanism for grouting operation, thereby greatly improving the treatment efficiency of the karst cave during drilling.

[0006] 2. Technical solution

[0007] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows:

[0008] The utility model provides a kind of cave treatment drilling device, including drilling mechanism, the drilling mechanism is vertically arranged, and its lower surface is installed with drilling tooth in equal interval along circumference, and drilling tooth is driven under drilling mechanism to make it slowly drill, to reach the purpose of driving whole drilling mechanism drilling forward;Slurry chamber is vertically opened in the inside of the drilling mechanism, and the lower part of the slurry chamber is vertically opened with guide chute in communication, and the outlet of the guide chute is vertically opened with discharge port in communication, and the discharge port is vertically through the bottom of the drilling mechanism;The upper part of the drilling mechanism is vertically installed with feed pipe, and the upper end of the feed pipe is stretched out on the upper surface of the drilling mechanism, and the lower end of the feed pipe is vertically stretched into the slurry chamber, by pouring slurry into the feed pipe, slurry enters slurry chamber through feed pipe, then is discharged from discharge port to the cave in the bottom of the drilling mechanism through guide chute, to ensure that pile foundation drilling meets cave, and slurry can be poured at any time to reinforce pile hole drilling, without removing drilling mechanism to carry out grouting operation, to greatly improve the processing efficiency of cave when drilling;The lower end of the feed pipe is sealed by external sealing mechanism, and the sealing mechanism is vertically moved in the slurry chamber by external positioning sliding sleeve along circumference, and sealing mechanism is blocked in the lower end of the feed pipe, to play the role of blocking slurry, in positioning sliding sleeve drives sealing mechanism to move down, to ensure that pouring slurry can flow along the inner wall of slurry chamber and guide chute and be discharged from discharge port, so that drilling mechanism and drilling tooth drilling can fill the bottom cave at the same time.

[0009] Further technical solutions, the upper surface of the drilling mechanism is provided with mounting seat along the circumference of the feed pipe, and the hoisting frame is vertically installed on the mounting seat for external driving mechanism, to drive the rotation of the drilling mechanism, to further drive the whole drilling mechanism to drill vertically forward by drilling tooth.

[0010] Further technical solutions, the upper part of the drilling mechanism is vertically opened with limiting slot along its circumference, and the lower part of the drilling mechanism is vertically opened with positioning slot along its circumference, and the limiting slot and the positioning slot are communicated, and the positioning sliding sleeve is coaxially sleeved in the communication area between the limiting slot and the positioning slot, and the positioning sliding sleeve can slide up and down between the limiting slot and the positioning slot, to further drive the sealing mechanism to slide up and down, to realize the opening and closing of the lower end of the feed pipe.

[0011] Further technical solutions, the coaxial limiting sliding groove is opened between the outer circumferential surface of the positioning sliding sleeve and the drilling mechanism, and the lower surface of the limiting sliding groove is flush with the upper surface of the guide chute;The limiting spring is coaxially sleeved in the limiting sliding groove, and the limiting sliding sleeve is installed on the upper surface of the limiting spring, and the limiting sliding sleeve is arranged along the circumference of the limiting sliding groove, and downward pressure is applied to realize that the limiting sliding sleeve drives the positioning sliding sleeve to move downward, to further press the limiting spring;When the positioning sliding sleeve is not pressed by external force, the limiting spring pushes the limiting sliding sleeve to move upward and resets under the action of its elastic force, to further drive the positioning sliding sleeve to move upward, to realize that the sealing mechanism blocks the feed pipe.

[0012] Further technical solutions, the sealing mechanism includes a sealing block, the outer peripheral surface of the sealing block is fixedly connected with the positioning sliding sleeve through a connecting rod, the connecting rod is equidistantly arranged between the outer peripheral surface of the sealing block and the inner side surface of the positioning sliding sleeve; a sealing plug is vertically installed on the middle part of the upper surface of the sealing block, and the sealing plug can be adaptively plugged into the lower port of the material conveying pipe.

[0013] Further technical solutions, the sealing block upper surface and the contact area of the drilling mechanism are also provided with a sealing gasket, which can greatly improve the sealing performance of the sealing block on the grouting chamber, further ensure the sealing effect under the blocking and sealing effect of the sealing plug on the material conveying pipe, and improve the stability of one-way flow.

[0014] Further technical solutions, the stirring mechanism is equidistantly transversely installed on the lower part of the drilling mechanism along the circumference thereof, the stirring mechanism includes a through hole transversely formed on the outer peripheral surface of the drilling mechanism, a chute is transversely formed on the inner side surface of the drilling mechanism corresponding to the position of the through hole, and a stirring rod is transversely installed in the chute along the length direction of the chute, the width of the stirring rod is smaller than the opening width of the through hole, so that the stirring rod can be stretched out of the through hole, and the stirring rod can stir the grouting mud in the solution cavity while following the rotation of the drilling mechanism, so that the mud is uniformly mixed.

[0015] Further technical solutions, a positioning spring is coaxially sleeved on the outer periphery of the stirring rod, a anti-slip block is connected to the end of the stirring rod away from the through hole, and the positioning spring is located between the inner side surface of the anti-slip block and the inner side surface of the through hole, so that the positioning spring can be compressed by the anti-slip block when the stirring rod is stretched out, thereby preventing the stirring rod from separating from the drilling mechanism; under the elastic restoring force of the positioning spring, the stirring rod can be retracted into the chute, thereby facilitating the continuous downward drilling of the drilling mechanism.

[0016] Further technical solutions, a tapered groove is formed in the middle part of the stirring rod along the length direction of the stirring rod, the tapered groove has a hollow triangular prism structure, the density of the end of the stirring rod away from the anti-slip block is greater than the density of the other end, so that the stirring rod has a stronger centrifugal force effect under the transmission of the drilling mechanism, and the grouting mud can move upward under the guidance of the inclined surface of the tapered groove in the stirring rod, so that the grouting mud can quickly occupy the upper space and the air can be pressed downward, thereby avoiding the situation that the air remains in the grouting wall after grouting and reduces the stability of the grouting wall.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solutions provided by the present application have the following beneficial effects:

[0019] (1) A drilling device for treating karst caves according to the present invention includes a vertically arranged drilling mechanism. The bottom of the drilling mechanism is provided with drilling teeth, which can slowly drill under the drive of the drilling mechanism. A material conveying pipe is vertically connected to the upper part of the drilling mechanism. The mud flows through the material conveying pipe through the grouting chamber and the inner wall of the guide trough, and flows out through the discharge port. This ensures that if a karst cave is encountered during the drilling of the pile foundation, mud can be injected at any time to reinforce the pile hole without having to remove the drilling mechanism for grouting operation, thereby greatly improving the efficiency of karst cave treatment during drilling.

[0020] (2) A drilling device for karst cave treatment according to the present invention, wherein the lower end of the conveying pipe is sealed by an external sealing mechanism, and the sealing block, in cooperation with the grouting chamber, blocks the conveying pipe, thereby forming a seal on the top of the grouting chamber. The positioning sleeve is coaxially sleeved in the connecting area between the limiting groove and the positioning groove. The positioning sleeve can slide up and down between the limiting groove and the positioning groove, thereby driving the sealing mechanism to slide up and down, thereby realizing the opening and closing of the lower end of the conveying pipe;

[0021] (3) A drilling device for karst cave treatment of the present invention, wherein a limiting groove is coaxially formed between the outer peripheral surface of the positioning sleeve and the drilling mechanism, and a limiting spring is coaxially sleeved in the limiting groove. The limiting sleeve is installed on the upper surface of the limiting spring. The limiting sleeve is arranged circumferentially along the limiting groove. Pressing down can cause the limiting sleeve to drive the positioning sleeve to move downward, thereby pressing down the limiting spring. Under its elastic recovery action, the limiting spring pushes the limiting sleeve to move upward and reset, thereby driving the positioning sleeve to move upward, so as to realize the sealing mechanism to block the material conveying pipe;

[0022] (4) A drilling device for treating karst caves according to the present invention, wherein a sealing gasket is provided in the area where the upper surface of the sealing block contacts the drilling mechanism. With the cooperation of the sealing gasket, the tightness of the contact between the sealing block and the inner wall of the grouting chamber can be improved, thereby further improving the sealing effect. Then, under the elastic recovery action of the limit spring, the sealing block and the guide sealing plug can cooperate with the grouting chamber to form a one-way valve mechanism. With the cooperation of the positioning sleeve, it can ensure that the grouting mud can flow along the inner wall of the grouting chamber, the positioning sleeve and the guide groove and flow out through the discharge port, thereby filling the karst cave at the bottom when the drilling mechanism and the drilling teeth are drilling.

[0023] (5) A drilling device for karst cave treatment according to the present invention, wherein a stirring mechanism is installed horizontally at equal intervals along the circumference of the lower part of the drilling mechanism, the stirring mechanism includes a through hole opened horizontally on the outer circumferential surface of the drilling mechanism, a sluice is opened horizontally in the drilling mechanism corresponding to the position of the through hole, and a stirring rod is installed horizontally in the sluice along its length direction. The stirring rod is driven to rotate around the axis of the drilling mechanism through the sluice, thereby making the stirring rod have centrifugal force. Therefore, under the action of centrifugal force, the stirring rod can extend from the inside of the sluice to the outside of the drilling mechanism, and under the drive of the drilling mechanism, it stirs the injected mud.

[0024] (6) The cave treatment drilling device of the present application, a conical groove is opened in the middle of the stirring rod along the length direction, the conical groove is a hollow triangular prism structure, under the transmission of the drilling mechanism, the stirring rod has stronger centrifugal force effect; under the guidance of the inclined surface of the conical groove, the mud has the tendency of upward movement, so that the air left in the upper layer during mud pouring can be avoided, and at the same time, the elastic recovery performance can be obtained by extruding the positioning spring through the anti-slip block under the limitation of the chute, so that the stirring rod can be reset conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional structure schematic diagram of the cave treatment drilling device of the present application;

[0026] Figure 2 It is Figure 1 a structure schematic diagram of the bottom view state;

[0027] Figure 3 It is a structure schematic diagram of the side longitudinal section of the cave treatment drilling device of the present application;

[0028] Figure 4 It is a structure schematic diagram of the front longitudinal section of the cave treatment drilling device of the present application;

[0029] Figure 5 It is Figure 4 a structure schematic diagram of the enlarged A part;

[0030] Figure 6 It is a front view of the grouting state of the cave treatment drilling device of the present application;

[0031] Figure 7 It is Figure 6 a structure schematic diagram of the internal connecting frame of the cave treatment drilling device in

[0032] Figure 8 It is Figure 7 a top view of

[0033] Figure 9 It is Figure 4 a structure schematic diagram of the stirring rod in the state of being thrown out;

[0034] Figure 10 It is Figure 9 a structure schematic diagram of the internal connecting frame in

[0035] In the diagram: 1-Drilling mechanism; 11-Grouting chamber; 12-Guide chute; 13-Discharge port; 14-Limiting groove; 15-Positioning groove; 16-Limiting slide; 2-Mounting base; 3-Conveying pipe; 4-Lifting frame; 5-Drilling teeth; 6-Mixing mechanism; 61-Through hole; 62-Slide; 63-Mixing rod; 631-Conical groove; 64-Anti-detachment slider; 65-Positioning spring; 7-Sealing mechanism; 71-Sealing block; 72-Sealing plug; 73-Connecting rod; 74-Sealing gasket; 8-Positioning slide; 9-Limiting spring; 10-Limiting slide. Detailed Implementation

[0036] To further understand the content of this invention, a detailed description of the invention is provided in conjunction with the accompanying drawings.

[0037] Example 1

[0038] This embodiment provides a drilling device for treating karst caves, such as... Figures 1-2 The diagram shows a drilling mechanism 1, which is vertically arranged. Drilling teeth 5 are evenly spaced along the circumference of its lower surface. Driven by the drilling mechanism, the drilling teeth 5 slowly advance, thereby propelling the entire drilling mechanism 1 forward through the borehole. Figure 3 As shown, the drilling mechanism 1 has a vertically oriented grouting chamber 11 inside. A guide chute 12 is vertically oriented at the lower part of the grouting chamber 11, and a discharge port 13 is vertically oriented at the lower outlet of the guide chute 12, penetrating the bottom of the drilling mechanism 1. A conveying pipe 3 is vertically connected to the upper part of the drilling mechanism 1. The upper end of the conveying pipe 3 extends beyond the upper surface of the drilling mechanism 1, and the lower end of the conveying pipe 3 extends vertically into the grouting chamber 11. Mud is injected into the conveying pipe 3, and the mud flows through… The material enters the grouting chamber 11 through the conveying pipe 3, and then is discharged from the discharge port 13 through the guide chute 12 into the karst cave at the bottom of the drilling mechanism 1. This ensures that if a karst cave is encountered during the drilling of the pile foundation, mud can be injected at any time to reinforce the pile hole without having to remove the drilling mechanism 1 for grouting operations, thereby greatly improving the efficiency of karst cave treatment during drilling. The lower end of the conveying pipe 3 is sealed by an external sealing mechanism 7, which moves vertically within the grouting chamber 11 through an external positioning sliding sleeve 8.

[0039] In this embodiment, a mounting base 2 is provided on the upper surface of the drilling mechanism 1 along the circumference of the feed pipe 3. A lifting frame 4 is vertically mounted on the mounting base 2 for connecting an external drive mechanism to drive the drilling mechanism 1 to rotate, and then drive the entire drilling mechanism 1 to advance vertically through the drilling teeth 5. During the grouting operation, with the cooperation of the positioning sliding sleeve 8, it is ensured that the grouting slurry can flow along the inner wall of the grouting chamber 11 and the guide trough 12 and flow out through the discharge port 13, so that the drilling mechanism 1 and the drilling teeth 5 can be drilled simultaneously to fill the bottom karst cave. During the drilling operation, the sealing mechanism 7 is sealed at the lower end of the feed pipe 3 to block the slurry.

[0040] Embodiment 2

[0041] The cave treatment drilling device of the embodiment has the same basic structure as that of Embodiment 1, but is different and improved in that, as shown in Figure 2 a limiting sliding groove 16 is coaxially arranged between the outer circumferential surface of the positioning sliding sleeve 8 and the drilling mechanism 1, and the lower surface of the limiting sliding groove 16 is flush with the upper surface of the material guiding groove 12; as shown in Figure 6 a limiting spring 9 is coaxially sleeved in the limiting sliding groove 16, and a limiting sliding sleeve 10 is mounted on the upper surface of the limiting spring 9, the limiting sliding sleeve 10 is circumferentially arranged along the limiting sliding groove 16, and is downwardly pressed to realize downward movement of the positioning sliding sleeve 8 driven by the limiting sliding sleeve 10, and further downward pressing of the limiting spring 9; when the positioning sliding sleeve 8 is not pressed by external force, the limiting spring 9 pushes the limiting sliding sleeve 10 to move upward and reset under the action of elastic recovery of the limiting spring 9, and further drives the positioning sliding sleeve 8 to move upward, so as to realize sealing of the material conveying pipe 3 by the sealing mechanism 7.

[0042] In the embodiment, a limiting groove 14 is vertically arranged along the circumference of the upper part of the drilling mechanism 1, and a positioning groove 15 is vertically arranged along the circumference of the lower part of the drilling mechanism 1, the limiting groove 14 and the positioning groove 15 are connected, the positioning sliding sleeve 8 is coaxially sleeved in the connected region between the limiting groove 14 and the positioning groove 15, the positioning sliding sleeve 8 can slide up and down between the limiting groove 14 and the positioning groove 15, and further drives the sealing mechanism 7 to slide up and down, so as to realize opening and closing of the lower end of the material conveying pipe 3.

[0043] Embodiment 3

[0044] The cave treatment drilling device of the embodiment has the same basic structure as that of Embodiment 2, but is different and improved in that, as shown in Figure 6 the sealing mechanism 7 includes a sealing block 71, and the outer circumferential surface of the sealing block 71 is fixedly connected with the positioning sliding sleeve 8 through an external connecting rod 73, as shown in Figures 7-8 the connecting rod 73 is equidistantly arranged between the outer circumferential surface of the sealing block 71 and the inner side surface of the positioning sliding sleeve 8; a sealing plug 72 is vertically mounted on the upper surface of the sealing block 71, and the sealing plug 72 can be adaptively plugged into the lower end port of the material conveying pipe 3.

[0045] Further, the sealing gasket 74 is further arranged on the contact region between the upper surface of the sealing block 71 and the drilling mechanism 1, so that the sealing property of the sealing block 71 to the grouting chamber 12 can be greatly improved, the sealing effect can be further ensured under the sealing effect of the sealing plug 72 to the material conveying pipe 3, and the stability of one-way flow can be improved, and under the action of elastic recovery of the limiting spring 9, the sealing block and the guide sealing plug can cooperate with the grouting chamber to form a one-way valve mechanism.

[0046] Embodiment 4

[0047] The cave treatment drilling device of the embodiment has the same basic structure as that of embodiment 3, but is different and improved in that, as shown in Figure 4 the lower part of the drilling mechanism 1 is transversely provided with stirring mechanisms 6 at equal intervals along the circumference thereof, as shown in Figures 5-6 , 9-10, the stirring mechanism 6 comprises a through hole 61 transversely formed in the outer circumferential surface of the drilling mechanism 1, a sliding groove 62 transversely formed in the drilling mechanism 1 at the position corresponding to the through hole 61, and a stirring rod 63 transversely mounted in the sliding groove 62 along the length direction thereof, the width of the stirring rod 63 being smaller than the opening width of the through hole 61 so that the stirring rod 63 can be extended out of the through hole 61, and the stirring rod 63 can stir the mud poured into the cave while following the rotation of the drilling mechanism 1 so as to make the mud mixed uniformly.

[0048] The outer periphery of the stirring rod 63 is coaxially sleeved with a positioning spring 65, and the end of the stirring rod 63 away from the through hole 61 is connected with an anti-slip block 64, the positioning spring 65 being located between the inner side surface of the anti-slip block 64 and the inner side surface of the through hole 61, and the stirring rod 63 being extended to compress the positioning spring 65 through the anti-slip block 64 so as to prevent the stirring rod 63 from being separated from the drilling mechanism 1, as shown in Figure 9 the positioning spring 65 can drive the stirring rod 63 to be retracted into the sliding groove 62 under the elastic restoring force of the positioning spring 65, so as to facilitate the drilling mechanism 1 to continue drilling downward.

[0049] Embodiment 5

[0050] The cave treatment drilling device of the embodiment has the same basic structure as that of embodiment 4, but is different and improved in that, as shown in Figure 5 the middle part of the stirring rod 63 is provided with a tapered groove 631 along the length direction thereof, the tapered groove 631 being a hollow triangular prism structure, the density of the end of the stirring rod 63 away from the anti-slip block 64 being greater than that of the other end, so that the stirring rod 63 can have a stronger centrifugal force effect under the transmission of the drilling mechanism 1, and the completed poured mud can have a tendency to move upward under the guidance of the inclined surface of the tapered groove 631 in the stirring rod 63, so that the mud can quickly occupy the space above and make the air be pressed downward to avoid the situation that the air is left in the protection wall after pouring to reduce the stability of the protection wall.

[0051] The above description of the present application and its embodiments is illustrative and has no limitation, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired thereby, without departing from the purpose of the present application, similar structural modes and embodiments can be designed without creativity, which shall all belong to the protection scope of the present application.

Claims

1. A cavern treatment drilling apparatus, characterized by: The drilling mechanism (1) is vertically arranged, and the lower surface thereof is circumferentially and equidistantly provided with drilling teeth (5); a grouting chamber (11) is vertically formed in the drilling mechanism (1); a material guide groove (12) is vertically and communicatively formed at the lower part of the grouting chamber (11); a material discharge port (13) is communicatively formed at the lower end of the material guide groove (12), and vertically penetrates through the bottom of the drilling mechanism (1); a material conveying pipe (3) is vertically and communicatively arranged at the upper part of the drilling mechanism (1), the upper end of the material conveying pipe (3) extends out of the upper surface of the drilling mechanism (1), and the lower end of the material conveying pipe (3) vertically extends into the grouting chamber (11); the lower end of the material conveying pipe (3) is sealed by an external sealing mechanism (7), and the sealing mechanism (7) moves vertically in the grouting chamber (11) through an external positioning sliding sleeve (8). The sealing mechanism (7) comprises a sealing block (71), the outer circumferential surface of the sealing block (71) is fixedly connected with the positioning sliding sleeve (8) through an external connecting rod (73), the connecting rod (73) is equidistantly arranged between the outer circumferential surface of the sealing block (71) and the inner side surface of the positioning sliding sleeve (8); a sealing plug (72) is vertically arranged at the middle part of the upper surface of the sealing block (71), and the sealing plug (72) can be adaptively plugged into the lower part of the material conveying pipe (3). The lower part of the drilling mechanism (1) is laterally and equidistantly provided with a stirring mechanism (6) along the circumference thereof, the stirring mechanism (6) comprises a through hole (61) laterally formed in the outer circumferential surface of the drilling mechanism (1), a sliding groove (62) is laterally formed in the drilling mechanism (1) at the position corresponding to the through hole (61), a stirring rod (63) is laterally arranged in the sliding groove (62) along the length direction thereof, and the width of the stirring rod (63) is smaller than the opening width of the through hole (61); a positioning spring (65) is coaxially sleeved on the outer periphery of the stirring rod (63), and an anti-slip block (64) is connected to the end of the stirring rod (63) away from the through hole (61), and the positioning spring (65) is located between the inner side surface of the anti-slip block (64) and the inner side surface of the through hole (61).

2. A cavern treatment drilling apparatus according to claim 1, wherein: The upper surface of the drilling mechanism (1) is provided with a mounting seat (2) along the circumference of the material conveying pipe (3), and a lifting frame (4) is vertically arranged on the mounting seat (2).

3. A cavern treatment drilling apparatus according to claim 2, wherein: A limiting groove (14) is vertically formed in the upper part of the drilling mechanism (1) along the circumference thereof, and a positioning groove (15) is vertically formed in the lower part of the drilling mechanism (1) along the circumference thereof, the limiting groove (14) and the positioning groove (15) are connected, and the positioning sliding sleeve (8) is coaxially sleeved in the connected region between the limiting groove (14) and the positioning groove (15).

4. A cavern treatment drilling apparatus according to claim 3, wherein: A limiting sliding groove (16) is coaxially formed between the outer circumferential surface of the positioning sliding sleeve (8) and the drilling mechanism (1), and the lower surface of the limiting sliding groove (16) is flush with the upper surface of the material guide groove (12); a limiting spring (9) is coaxially sleeved in the limiting sliding groove (16), a limiting sliding sleeve (10) is arranged on the upper surface of the limiting spring (9), and the limiting sliding sleeve (10) is arranged along the circumference of the limiting sliding groove (16).

5. A cavern treatment drilling apparatus according to claim 4, characterised in that: The upper surface of the sealing block (71) is provided with a sealing gasket (74) in the contact area with the drilling mechanism (1).

6. A cavern treatment drilling apparatus according to claim 5, wherein: A tapered groove (631) is formed in the middle of the stirring rod (63) along the length direction, and the tapered groove (631) is a hollow triangular prism structure.

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