Engineering pile rock entering judgment equipment and judgment method thereof

Abstract

The invention relates to engineering pile rock entering judgment equipment and a judgment method thereof, and belongs to the technical field of drilling rigs. A rock debris filtering assembly is arranged, the rock debris filtering assembly is used for filtering rock blocks mixed in slurry, when the slurry passes through a filter screen arranged in a rock debris filtering shell, the slurry can be conveyed into a sedimentation tank through the filter screen; the rock blocks mixed in the mud can stay in the rock debris filtering shell, then a pushing block arranged in the rock debris filtering shell extends out through the output end of a pushing cylinder, the rock blocks located in the rock debris filtering shell are moved towards the filtering groove holes, and during the period, the sealing matching relation between the sealing block and the filtering groove holes is relieved; rock blocks located in the rock debris filtering shell are removed out of the rock debris filtering shell, and the rock entering condition of the engineering pile is judged by observing the condition of the rock blocks removed out of the rock debris filtering shell.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling machines, and in particular relates to a device for judging the penetration of an engineering pile into rock and a method thereof. Background Art

[0002] When constructing cast-in-place concrete piles, the design drawings often require that the bearing layer at the end of the pile be rock and must enter the rock layer to a certain depth. The rock layer is buried deep underground and the situation is extremely complex. It is not only important but also difficult to determine whether to enter the bearing layer. Usually, a reverse circulation drilling rig is used to drill holes in the well, and the rock blocks in the well are directly pumped out of the well to determine the rock layer where the bearing layer at the end of the pile is located.

[0003] For example, the utility model patent with patent authorization announcement number: CN219431767U includes a reverse circulation drilling rig body, which includes a carrier, a drilling rig mechanism is arranged at one end of the carrier, a reverse circulation flushing mechanism is arranged on the upper surface of the carrier, and the reverse circulation flushing mechanism includes a cuttings filter cylinder, and a slag discharge pipe is movably installed at one end of the cuttings filter cylinder, and the slag discharge pipe is used to discharge rock blocks extracted from the well.

[0004] Based on the search of patent authorization announcement numbers and the shortcomings found therein:

[0005] The existing rock cutting filter cartridges set up in reverse circulation drilling rigs all need to manually release the valve port, and the operator needs to remove the rock blocks in the rock cutting filter cartridge from the rock cutting filter cartridge to facilitate subsequent observation of the rock blocks. Such a setting is not only cumbersome, but also will delay the speed and efficiency of the drilling rig equipment. At the same time, if the rock cutting filter cartridge causes congestion, the operator will open the valve port, which will cause the mud in the rock cutting filter cartridge to gush out and splash onto the operator, posing a safety hazard. Summary of the invention

[0006] In order to solve the problem that the existing reverse circulation drilling rigs are equipped with a cuttings filter cartridge that requires manual release of the valve port, and the operator removes the rock blocks in the cuttings filter cartridge from the cuttings filter cartridge to facilitate subsequent observation of the rock blocks, such a setting is not only cumbersome, but also delays the speed and efficiency of the drilling rig equipment. At the same time, if the cuttings filter cartridge causes congestion, the operator opens the valve port and the mud in the cuttings filter cartridge gushes out and splashes onto the operator, posing a safety hazard. The present invention provides an engineering pile rock penetration judgment device and a judgment method thereof.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A device for judging whether an engineering pile has entered a rock, comprises a drilling assembly and a sedimentation tank, wherein the drilling assembly is connected to the sedimentation tank, the drilling assembly is used to extend into a well to drill and sample the rock formation, and transfer mud to the sedimentation tank, and also comprises a cuttings filter assembly and a push rod assembly, wherein the cuttings filter assembly comprises an internally hollow cuttings filter housing, a filter screen and a sealing block, the two ends of the cuttings filter housing are respectively connected to the drilling assembly and the sedimentation tank, the filter screen is sealed at the connection between the cuttings filter housing and the sedimentation tank, a pushing slot is provided on the side wall of the cuttings filter housing, the push rod assembly comprises a pushing block and a pushing cylinder, the pushing block is slidably and sealingly provided in the pushing slot, the pushing cylinder is provided outside the cuttings filter housing, the output end of the pushing cylinder is connected to the pushing block, the side wall of the cuttings filter housing is also provided with a filtering slot, the filtering slot is arranged opposite to the pushing slot, and the sealing block can lock or release its sealing cooperation relationship with the filtering slot.

[0009] As a preferred technical solution of the present invention, a side wall surface at one end of the pushing slot hole and a side wall surface at one end of the filtering slot hole are both on the same vertical plane as the surface of the filter screen.

[0010] As a preferred technical solution of the present invention, the surface of the pushing block is provided with a plurality of filter hole groups, which are opened on the surface of the pushing block at equal intervals along the vertical direction; the filter hole group includes a plurality of filter holes, which are opened on the surface of the pushing block at equal intervals along the horizontal direction, and the filter holes can lock or release their connection relationship with the filter net.

[0011] As a preferred technical solution of the present invention, the cuttings filtering assembly further comprises a sensing valve, the sensing valve is sealingly arranged at the connection point between the drilling assembly and the cuttings filtering housing, and the sensing valve is communicatively connected with the pushing cylinder.

[0012] As a preferred technical solution of the present invention, the rock cuttings filter assembly also includes a push rod, a sliding slot is provided on the top side wall of the rock cuttings filter housing, the push rod is slidably arranged in the sliding slot, one end of the push rod is connected to the sealing block, and the other end of the push rod is connected to the push block through a connecting piece, and a connecting slot is also provided on the top side wall of the rock cuttings filter housing, the connecting slot is respectively connected to the sliding slot and the interior of the rock cuttings filter housing, and the connecting piece is slidably arranged in the connecting slot.

[0013] As a preferred technical solution of the present invention, the rock cuttings filter assembly also includes a sealing ring, and the top side wall of the rock cuttings filter shell is also provided with a sealing rectangular groove, the central axis of the connecting slot hole is parallel to the moving direction of the pushing block, and the connecting slot hole is connected to one end of the sealing rectangular groove, the sealing ring is slidably sealed in the sealing rectangular groove, the sealing ring is provided with a sealing slot hole, and the connecting piece is sealingly matched with the sealing slot hole.

[0014] As a preferred technical solution of the present invention, the rock cuttings filtering assembly also includes a recovery shell, the recovery shell is provided with an inclined slot hole, the recovery shell and the side wall of the rock cuttings filtering shell are fitted together, the slot at the higher end of the inclined slot hole wraps the filtering slot hole, the recovery shell is also provided with a collecting slot hole, the collecting slot hole is located at the bottom of the inclined slot hole, the recovery shell is also provided with a plurality of connecting slot holes, the plurality of connecting slot holes are vertically arranged in the recovery shell at equal intervals along the central axis direction of the inclined slot hole, the two ends of the connecting slot hole are respectively connected to the inclined slot hole and the collecting slot hole, and the collecting slot hole is used to collect mud overflowing from the filtering slot hole.

[0015] As a preferred technical solution of the present invention, the rock cuttings filtering assembly also includes a hinged door, which is rotatably hinged at one end of the recovery shell away from the rock cuttings filtering shell, and the hinged door can lock or release its sealing cooperation relationship with the lower end of the inclined slot hole.

[0016] As a preferred technical solution of the present invention, the rock cutting filter assembly also includes a hinge rod, a sliding rod, a locking block and a locking spring, the rock cutting filter shell and the recovery shell jointly form a vertical hinge slot, the middle end of the hinge rod is hingedly arranged in the hinge slot, and the recovery shell is also provided with a horizontally arranged locking slot, the sliding rod is slidably arranged in the locking slot, the locking spring is arranged in the locking slot, and the two ends of the locking spring are respectively connected to the sliding rod and the recovery shell, one end of the sliding rod can be hingedly arranged with the bottom end of the hinge rod slidably along the axial direction of the hinge rod, and the other end of the sliding rod is connected to the locking block, the sealing block can lock or release its abutting relationship with the top end of the hinge rod through an abutment, and the locking block can lock or release its abutting relationship with the end of the hinged door away from the hinge.

[0017] A method for judging whether an engineering pile has entered a rock comprises the following steps:

[0018] S1: the drilling assembly starts working and transfers mud to the cuttings filtering housing;

[0019] S2: The mud in the cuttings filter housing is transferred to the sedimentation tank through the filter screen;

[0020] S3: the sealing block starts to move, releasing the sealing cooperation relationship between the sealing block and the filter slot hole;

[0021] S4: During the execution of step S3, the pushing cylinder drives the pushing block to move toward the filter slot hole to remove the rock blocks in the rock debris filter housing out of the rock debris filter housing;

[0022] S5: The pushing block and the sealing block are reset.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a rock filter assembly, which is used to filter the rock blocks mixed in the mud. When the mud passes through the filter screen provided in the rock filter housing, the mud will be transmitted to the sedimentation tank through the filter screen, and the rock blocks mixed in the mud will stay in the rock filter housing. Then, the pushing block provided in the rock filter housing extends out through the output end of the pushing cylinder to move the rock blocks in the rock filter housing toward the filter slot. During this period, the sealing block releases its sealing cooperation relationship with the filter slot, so that the rock blocks in the rock filter housing are removed from the rock filter housing. This solves the problem that the rock filter cartridge provided in the existing reverse circulation drilling rig needs to manually release the valve port, and the operator removes the rock blocks in the rock filter cartridge from the rock filter cartridge, so as to facilitate the subsequent observation of the rock blocks. Such a setting not only makes the process cumbersome, but also delays the speed and efficiency of the drilling equipment. At the same time, if the rock filter cartridge causes congestion, the operator opens the valve port, which will cause the mud in the rock filter cartridge to gush out and splash onto the operator, posing a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 This is an overall diagram of a device for judging the penetration of an engineering pile into rock according to the present invention;

[0027] Figure 2 This is a front view of a device for judging the penetration of an engineering pile into rock according to the present invention;

[0028] Figure 3 This is an internal diagram of a rock debris filter housing of a device for judging the penetration of an engineering pile into rock according to the present invention;

[0029] Figure 4 This is an internal diagram of a rock debris recovery housing of a device for judging the penetration of an engineering pile into rock according to the present invention;

[0030] Figure 5This is an internal view of a hinged slot hole of an engineering pile rock penetration judgment device of the present invention.

[0031] Description of main symbols

[0032] In the figure: 1. drilling assembly; 2. sedimentation tank; 3. cuttings filter housing; 4. filter screen; 5. sealing block; 6. push rod assembly; 601. push block; 6011. filter hole; 602. push cylinder; 8. push rod; 9. connector; 10. sealing ring; 11. recovery housing; 1101. inclined slot; 1102. collecting slot; 1103. connecting slot; 12. hinged door; 13. hinged rod; 14. sliding rod; 15. locking block; 16. locking spring. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0034] See also Figure 1-5The present embodiment provides a device for judging whether an engineering pile has entered a rock, including a drilling assembly 1 and a sedimentation tank 2. The drilling assembly 1 is connected to the sedimentation tank 2. The drilling assembly 1 is used to extend into the well to drill and sample the rock formation and transfer the mud to the sedimentation tank 2. The device also includes a rock cutting filter assembly and a push rod assembly 6. The rock cutting filter assembly includes a rock cutting filter housing 3 with a hollow interior, a filter screen 4 and a sealing block 5. The two ends of the rock cutting filter housing 3 are respectively connected to the drilling assembly 1 and the sedimentation tank 2. The filter screen 4 is sealed and arranged at the connection between the rock cutting filter housing 3 and the sedimentation tank 2. The side wall is provided with a push slot, and the push rod assembly 6 includes a push block 601 and a push cylinder 602. The push block 601 can be slidably sealed in the push slot, and the push cylinder 602 is arranged outside the rock dust filter housing 3. The push cylinder 602 is connected to the outer wall of the rock dust filter housing 3, and the output end of the push cylinder 602 is connected to the push block 601. The side wall of the rock dust filter housing 3 is also provided with a filter slot, and the filter slot is arranged opposite to the push slot. The sealing block 5 can lock or release its sealing cooperation relationship with the filter slot; this scheme is provided with a rock dust filter assembly, and the rock dust filter assembly is used In order to filter the rock blocks mixed in the mud, when the mud passes through the filter screen 4 set in the rock filter housing 3, the mud will be transmitted to the sedimentation tank 2 through the filter screen 4, and the rock blocks mixed in the mud will stay in the rock filter housing 3, and then the push block 601 set in the rock filter housing 3 is extended through the output end of the push cylinder 602 to move the rock blocks in the rock filter housing 3 toward the filter slot. During this period, the sealing block 5 releases its sealing cooperation relationship with the filter slot, so that the rock blocks in the rock filter housing 3 are removed from the rock filter housing 3. The rock blocks outside the rock filter shell 3 are cleared out, and then the rock penetration condition of the engineering pile is judged, which solves the problem that the rock filter cartridge set in the existing reverse circulation drilling rig needs to manually release the valve port, and the operator removes the rock blocks in the rock filter cartridge out of the rock filter cartridge, which is convenient for subsequent observation of the rock blocks. Such a setting is not only cumbersome, but also will delay the speed and efficiency of the drilling rig equipment. At the same time, if the rock filter cartridge causes congestion, the operator will open the valve port, which will cause the mud in the rock filter cartridge to gush out and splash onto the operator, posing a safety hazard.

[0035] Furthermore, due to the force of the mud, rocks will eventually accumulate in front of the filter 4. In order to ensure that the rocks accumulated in front of the filter 4 will not cause blockage of the filter 4, it is necessary to ensure that the rocks accumulated in front of the filter 4 of this scheme are cleared out of the rock debris filter shell 3. Based on this, the side wall surface of one end of the push slot and the side wall surface of one end of the filter slot of this scheme are both on the same vertical plane with the surface of the filter 4, and the width of the push slot is the same as the width of the push block 601.

[0036] In addition, when the rock blocks in front of the filter screen 4 accumulate to a certain extent, there is a situation where the rock blocks will block the mesh of the filter screen 4, which will cause the mud in the rock chip filter housing 3 to be unable to be transmitted to the sedimentation tank 2, but can only accumulate in the rock chip filter housing 3. Based on this, in order to solve this problem, the surface of the push block 601 of this solution is provided with a plurality of filter hole 6011 groups, and the plurality of filter hole 6011 groups are opened on the surface of the push block 601 at equal intervals along the vertical direction; the filter hole 6011 group includes a plurality of filter holes 6011, and the plurality of filter holes 6011 are opened on the surface of the push block 601 at equal intervals along the horizontal direction. The filter hole 6011 can lock or release its connection relationship with the filter screen 4. It is worth mentioning that when the pushing block 601 is retracted in the pushing slot, the filter hole 6011 arranged on the surface of the pushing block 601 is hidden in the pushing slot, and the filter hole 6011 and the filter screen 4 are in a mutually sealed relationship; when the pushing block 601 is extended out of the pushing slot, the pushing block 601 can clear the rock blocks accumulated in front of the filter screen 4, the filter hole 6011 and the filter screen 4 are in a mutually connected relationship, and the mud located in the rock debris filter shell 3 will pass through the filter hole 6011 and the filter screen 4, thereby realizing the mud transmission to the sedimentation tank 2.

[0037] Furthermore, the cuttings filtering assembly of the present solution further comprises a sensing valve, which is sealed and arranged at the connection point between the drilling assembly 1 and the cuttings filtering housing 3, and is in communication connection with the push cylinder 602. Before the push cylinder 602 is ready to work, the sensing valve will first be closed to prevent the mud in the drilling assembly 1 from being transferred to the cuttings filtering housing 3. After the push cylinder 602 completes its work, the sensing valve will be reopened, and the mud in the drilling assembly 1 can be transferred to the cuttings filtering housing 3 again.

[0038] Furthermore, the rock cuttings filtering assembly of the present scheme also includes a pushing rod 8, a sliding slot is provided on the top side wall of the rock cuttings filtering shell 3, the pushing rod 8 is slidably arranged in the sliding slot, one end of the pushing rod 8 is connected to the sealing block 5, and the other end of the pushing rod 8 is connected to the pushing block 601 through the connecting piece 9. A connecting slot is also provided on the top side wall of the rock cuttings filtering shell 3, and the connecting slot is respectively connected to the sliding slot and the interior of the rock cuttings filtering shell 3, the connecting piece 9 is slidably arranged in the connecting slot, and the connecting piece 9 is vertically arranged in the rock cuttings filtering shell 3. Through such an arrangement, when the pushing cylinder 602 drives the pushing block 601 to move in the direction of extending out of the sliding slot, due to the arrangement of the sliding rod 14, the sealing block 5 moves following the movement of the pushing block 601, so that the sealing block 5 releases its sealing cooperation relationship with the filtering slot.

[0039] As mentioned in the above embodiment, in order to achieve the linkage effect between the push block 601 and the sealing block 5, a sliding rod 14 and a connecting member 9 are provided. At the same time, in order to meet the structural requirements of the sliding rod 14 and the connecting member 9 sliding, a connecting slot and a sliding slot are provided, and the connecting slot is respectively connected to the sliding slot and the internal space of the rock chip filter housing 3, so that the mud in the rock chip filter housing 3 flows into the sliding slot through the connecting slot, thereby causing the sliding rod 14 in the sliding slot to be unable to operate normally. In order to solve this problem, the rock chip filter assembly of this scheme The component also includes a sealing ring 10. A sealing rectangular groove is also provided on the top side wall of the cuttings filtering housing 3. The central axis of the connecting groove hole is parallel to the moving direction of the push block 601, and the connecting groove hole is connected to one end of the sealing rectangular groove. The sealing ring 10 is slidably sealed in the sealing rectangular groove. The sealing ring 10 is provided with a sealing groove hole. The connecting component 9 is sealingly connected with the sealing groove hole. Due to the provision of the sealing ring 10, the sealing ring 10 seals the sliding groove hole and the interior of the cuttings filtering housing 3 to ensure that the mud in the cuttings filtering housing 3 will not flow into the sliding groove hole.

[0040] Specifically, the above embodiment has described that when rock blocks accumulate on the filter screen 4 and cause the filter screen 4 to be blocked, the rock chip filter housing 3 is also filled with mud, and the sealing block 5 and the push block 601 of the present solution are linked to move. Such a setting will inevitably cause the mud in the rock chip filter housing 3 to overflow to the outside of the rock chip filter housing 3 through the filter slot. In order to reduce the occurrence of mud overflowing outside the equipment, the rock chip filter assembly of the present solution also includes a recovery housing 11, and the recovery housing 11 is provided with an inclined slot 1101. The recovery housing 11 and the side wall of the rock chip filter housing 3 are fitted together, and the higher end slot of the inclined slot 1101 wraps the filter slot. The recovery housing 11 is also provided with a collection slot 1102. The collection slot 1102 is located at the bottom of the inclined slot 1101, and the recovery shell 11 is also provided with a plurality of connecting slots 1103, and the plurality of connecting slots 1103 are vertically arranged in the recovery shell 11 at equal intervals along the central axis direction of the inclined slot 1101, and the two ends of the connecting slot 1103 are respectively connected with the inclined slot 1101 and the collecting slot 1102, and the collecting slot 1102 is used to collect the mud overflowing from the filtering slot. By providing the recovery shell 11, when the mud in the cuttings filtering shell 3 overflows into the recovery shell 11, due to the existence of the connecting slot 1103, the mud will fall into the collecting slot 1102 through the connecting slot 1103, thereby realizing the collection of the mud overflowing to the outside of the cuttings filtering shell 3.

[0041] In addition, in addition to collecting the overflowed mud, the recovery shell 11 also needs to collect the rocks removed from the debris filter shell 3. Based on this, the debris filter assembly of this solution also includes a hinged door 12, which is rotatably hinged at one end of the recovery shell 11 away from the debris filter shell 3. The hinged door 12 can lock or release its sealing relationship with the lower end of the inclined slot 1101. It should be noted that when the sealing block 5 of this solution releases its sealing relationship with the filter slot, the rocks in the debris filter shell 3 will pass through the filter. The slot hole falls into the recovery shell 11. If the hinged door 12 can be opened at this time, that is, the hinged door 12 releases its sealing cooperation relationship with the lower end of the inclined slot hole 1101, the rock block will slide out of the recovery shell 11 through the inclined slot hole 1101, and due to the inertia of the rock block, the rock block will continue to slide out of the recovery shell 11, posing a safety hazard to the operator. Based on this, when the sealing block 5 of the present scheme releases its sealing cooperation relationship with the filter slot hole, the hinged door 12 needs to lock its sealing cooperation relationship with the lower end of the inclined slot hole 1101.

[0042] Based on this, in order to achieve the above-mentioned structural effect, the rock cuttings filtering assembly of the present scheme also includes a hinge rod 13, a sliding rod 14, a locking block 15 and a locking spring 16. The rock cuttings filtering shell 3 and the recovery shell 11 are jointly formed with a vertical hinge slot. The middle end of the hinge rod 13 is hingedly arranged in the hinge slot. The recovery shell 11 is also provided with a horizontally arranged locking slot. The top end of the hinge slot is interconnected with the higher end of the inclined slot 1101, and the bottom end of the hinge slot is interconnected with the locking slot. The sliding rod 14 is slidably arranged in the locking slot, and the locking spring 16 is arranged in the lock. In the stop slot hole, the two ends of the locking spring 16 are respectively connected to the sliding rod 14 and the recovery shell 11, and the bottom side wall of the hinge rod 13 is provided with a hinge groove bar, and the central axis direction of the hinge groove bar is parallel to the central axis direction of the hinge rod 13. One end of the sliding rod 14 can be slidably hinged on the hinge groove bar, so that one end of the sliding rod 14 can be slidably hinged to the bottom end of the hinge rod 13 along the axis direction of the hinge rod 13, and the other end of the sliding rod 14 is connected to the locking block 15. The sealing block 5 can lock or release its abutment with the top end of the hinge rod 13 through the abutment member. The locking block 15 can lock or release its abutment with the end of the hinged door 12 away from the hinge. It is worth noting that when the sealing block 5 seals the filter slot, the abutment connected to the sealing block 5 presses the top of the hinge rod 13, so that the top of the hinge rod 13 rotates away from the filter slot. Due to the hinged relationship at the middle end of the hinge rod 13, the bottom of the hinge rod 13 moves toward the locking slot, so that the sliding rod 14 connected to the bottom of the hinge rod 13 moves toward the direction close to the hinged door 12, thereby locking the locking block connected to the sliding rod 14. 15 releases its abutting and matching relationship with the hinged door 12, and the hinged door 12 can be opened normally; similarly, when the sealing block 5 releases its sealing and matching relationship with the filter slot hole, the abutting piece connected to the sealing block 5 releases its pressing relationship with the top of the hinged rod 13, and due to the locking spring 16, the sliding rod 14 will move in the direction close to the bottom of the hinged rod 13, thereby causing the bottom of the hinged rod 13 to move in the direction away from the locking slot hole, and then the locking block 15 connected to the sliding rod 14 locks its abutting and matching relationship with the hinged door 12, and the hinged door 12 cannot be opened.

[0043] A method for judging whether an engineering pile has entered a rock comprises the following steps:

[0044] S1: The drilling assembly 1 starts working and transfers mud to the cuttings filter housing 3;

[0045] S2: The mud in the cuttings filter housing 3 is transferred to the sedimentation tank 2 through the filter screen 4;

[0046] S3: The sealing block 5 starts to move, releasing the sealing relationship between it and the filter slot hole;

[0047] S4: During the execution of step S3, the push cylinder 602 drives the push block 601 to move toward the filter slot, so as to remove the rock blocks in the rock debris filter housing 3 out of the rock debris filter housing 3;

[0048] S5: The pushing block 601 and the sealing block 5 are reset.

[0049] The above description is only an example of a preferred implementation of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An engineering pile rock penetration judgment device, comprising a drilling assembly and a sedimentation tank, wherein the drilling assembly is connected to the sedimentation tank, and the drilling assembly is used to extend into the well to drill and sample the rock formation, and transfer the mud to the sedimentation tank, characterized in that: It also includes a cuttings filter assembly and a push rod assembly, the cuttings filter assembly includes an internally hollow cuttings filter shell, a filter screen and a sealing block, the two ends of the cuttings filter shell are respectively connected to the drilling assembly and the sedimentation tank, the filter screen is sealed at the connection between the cuttings filter shell and the sedimentation tank, the side wall of the cuttings filter shell is provided with a pushing slot, the push rod assembly includes a pushing block and a pushing cylinder, the pushing block is slidably and sealedly arranged in the pushing slot, the pushing cylinder is arranged outside the cuttings filter shell, the output end of the pushing cylinder is connected to the pushing block, the side wall of the cuttings filter shell is also provided with a filtering slot, the filtering slot is arranged opposite to the pushing slot, and the sealing block can lock or release its sealing cooperation relationship with the filtering slot.

2. The equipment for judging whether an engineering pile has entered a rock according to claim 1, characterized in that: One end side wall surface of the pushing slot hole and one end side wall surface of the filtering slot hole are both on the same vertical plane as the surface of the filter screen.

3. The equipment for judging whether an engineering pile has entered a rock according to claim 1, characterized in that: The surface of the pushing block is provided with a plurality of filter hole groups, which are opened on the surface of the pushing block at equal intervals along the vertical direction; the filter hole group includes a plurality of filter holes, which are opened on the surface of the pushing block at equal intervals along the horizontal direction, and the filter holes can lock or release their connection relationship with the filter net.

4. The equipment for judging whether an engineering pile has entered a rock according to claim 1, characterized in that: The cuttings filtering assembly further comprises a sensing valve, which is sealingly arranged at the connection point between the drilling assembly and the cuttings filtering housing, and the sensing valve is in communication connection with the pushing cylinder.

5. The equipment for judging whether an engineering pile has entered a rock according to claim 1, characterized in that: The cuttings filter assembly also includes a push rod, a sliding slot is provided on the top side wall of the cuttings filter housing, the push rod is slidably arranged in the sliding slot, one end of the push rod is connected to the sealing block, and the other end of the push rod is connected to the push block through a connecting piece, and a connecting slot is also provided on the top side wall of the cuttings filter housing, the connecting slot is respectively connected to the sliding slot and the interior of the cuttings filter housing, and the connecting piece is slidably arranged in the connecting slot.

6. The equipment for judging whether an engineering pile has entered a rock according to claim 5, characterized in that: The rock cuttings filter assembly also includes a sealing ring. The top side wall of the rock cuttings filter housing is also provided with a sealing rectangular groove. The central axis of the connecting slot hole is parallel to the moving direction of the push block, and the connecting slot hole is connected to one end of the sealing rectangular groove. The sealing ring is slidably and sealedly disposed in the sealing rectangular groove. The sealing ring is provided with a sealing slot hole, and the connecting piece is sealingly and cooperatively connected with the sealing slot hole.

7. The equipment for judging whether an engineering pile has entered a rock according to claim 1, characterized in that: The cuttings filtering assembly also includes a recovery shell, which is provided with an inclined slot hole. The recovery shell and the side wall of the cuttings filtering shell are fitted together, and the slot at the higher end of the inclined slot hole wraps the filtering slot hole. The recovery shell is also provided with a collecting slot hole, and the collecting slot hole is located at the bottom of the inclined slot hole. The recovery shell is also provided with a plurality of connecting slot holes, and the plurality of connecting slot holes are vertically arranged in the recovery shell at equal intervals along the central axis direction of the inclined slot hole. The two ends of the connecting slot hole are respectively connected with the inclined slot hole and the collecting slot hole, and the collecting slot hole is used to collect mud overflowing from the filtering slot hole.

8. The equipment for judging whether an engineering pile has entered a rock according to claim 7, characterized in that: The cuttings filtering assembly further comprises a hinged door, which is rotatably hingedly arranged at one end of the recovery housing away from the cuttings filtering housing, and the hinged door can lock or release its sealing cooperation relationship with the lower end of the inclined slot hole.

9. The equipment for judging whether an engineering pile has entered a rock according to claim 8, characterized in that: The rock cutting filter assembly also includes a hinge rod, a sliding rod, a locking block and a locking spring, the rock cutting filter shell and the recovery shell jointly form a vertical hinge slot, the middle end of the hinge rod is hingedly arranged in the hinge slot, and the recovery shell is also provided with a horizontally arranged locking slot, the sliding rod is slidably arranged in the locking slot, the locking spring is arranged in the locking slot, and the two ends of the locking spring are respectively connected to the sliding rod and the recovery shell, one end of the sliding rod can be hingedly arranged with the bottom end of the hinge rod slidably along the axial direction of the hinge rod, and the other end of the sliding rod is connected to the locking block, the sealing block can lock or release its abutting cooperation relationship with the top end of the hinge rod through an abutment, and the locking block can lock or release its abutting cooperation relationship with the end of the hinged door away from the hinge.

10. A method for judging whether an engineering pile has entered a rock, applicable to the device for judging whether an engineering pile has entered a rock according to any one of claims 2 to 9, characterized in that: The following steps are involved: S1: the drilling assembly starts working and transmits mud to the cuttings filtering housing; S2: The mud in the cuttings filter housing is transferred to the sedimentation tank through the filter screen; S3: the sealing block starts to move, releasing the sealing cooperation relationship between the sealing block and the filter slot hole; S4: During the execution of step S3, the pushing cylinder drives the pushing block to move toward the filter slot hole to remove the rock blocks in the rock debris filter housing out of the rock debris filter housing; S5: The pushing block and the sealing block are reset.

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