CN117868813A - A hydrogeological drilling device - Google Patents

Abstract

The invention discloses a hydrogeological drilling device, comprising a drilling machine, wherein the drilling machine comprises a drilling tool and a drilling hole, the drilling tool is located on the ground, a booster air pump and an extraction controller are installed on the top surface of the drilling tool, the drilling hole is opened on the ground, a drilling tool is movably plugged into the inside of the drilling hole, and the drilling tool can be connected to the drilling tool by transmission; by operating a fixed-angle driver, the fixed-angle driver can trigger a water supply structure, and the triggered water supply structure can open a corresponding sampler, so that water inside the intake structure enters the sampler under the action of pressure difference, thereby achieving the purpose of sampling, and using the water inside the sampler as a water sample to conduct groundwater survey, the survey result can better reflect the water situation in different strata, the survey result is more real, and the practicability of the hydrogeological drilling device is improved.

Description

A hydrogeological drilling device

Technical Field

The present invention relates to the field of geological drilling equipment, and more specifically, to a hydrogeological drilling device.

Background technique

Hydrogeological survey, also known as hydrogeological investigation, refers to the hydrogeological investigation and research work carried out to find out the hydrogeological conditions of a region. It aims to understand the causes, distribution and movement laws of groundwater and surface water, and provide a basis for the rational exploitation and utilization of water resources and the correct design and construction of foundation and piling projects. It includes two aspects: underground and ground hydrological surveys. Underground hydrological surveys mainly investigate and study the changes in groundwater levels, flow directions, chemical composition, etc. at different times of the year, find out the burial conditions and corrosiveness of groundwater, determine the possible changes and impacts of groundwater during the construction and use of buildings, and put forward prevention and control suggestions. Drilling equipment is required in hydrogeological surveys. The requirements of hydrogeological drilling are different from those of general mineral drilling. It requires a relatively large aperture and must be drilled with clean water. Otherwise, the obtained hydrogeological parameters may be distorted.

The existing hydrogeological drilling device is composed of a derrick, a drilling rig, a drill rod, a drilling tool, a water pump, etc., which utilizes a rotary drill tool and a water circulation method. The drilling process is to install the drill tool on a hollow drill rod, and the drilling rig drives the drill tool to rotate through the drill rod to achieve drilling. During the drilling process, the water pump continuously supplies water, and the water enters the drill rod through the water joint on the drill rod and is sent to the drill bit of the drill tool for spraying. The water plays a role in discharging muddy water and cooling. The discharged muddy water is used to investigate the chemical composition of groundwater. However, the water in the muddy water is a mixture of circulating clean water and groundwater in different strata. The result of using the water in the muddy water as a water sample for investigation cannot accurately reflect the water situation of each stratum, and the investigation result is distorted. Therefore, it is urgent to design a hydrogeological drilling device.

Summary of the invention

1. Technical problems to be solved

The existing hydrogeological drilling device in the prior art is composed of a derrick, a drilling rig, a drill rod, a drilling tool, a water pump, etc., which utilizes a rotary drill tool and a water circulation method. The drilling process is to install the drill tool on a hollow drill rod, and the drilling rig drives the drill tool to rotate through the drill rod to achieve drilling. During the drilling process, the water pump continuously supplies water, and the water enters the drill rod through the water joint on the drill rod and is sprayed onto the drill bit of the drill tool. The water plays a role in discharging muddy water and cooling. The discharged muddy water is used to investigate the chemical composition of groundwater. However, the water in the muddy water is a mixture of circulating clean water and groundwater in different strata. The result of the investigation using the water in the muddy water as a water sample cannot accurately reflect the water situation of each stratum, and the investigation result is distorted. The purpose of the present invention is to provide a hydrogeological drilling device, which can well solve the problems raised in the background technology.

2. Technical solution

To solve the above problems, the present invention adopts the following technical solutions.

A hydrogeological drilling device includes a drilling machine, which includes a drilling rig and a drilling hole. The drilling rig is located on the ground, a booster air pump and an extraction controller are installed on the top surface of the drilling rig, the drilling hole is opened on the ground, a drilling tool is movably inserted inside the drilling hole, and the drilling tool can be connected to the drilling rig through transmission.

Preferably, the drilling tool comprises a positioning outer tube, which is located inside the drilling hole, and the inner tube of the positioning outer tube is movably connected thereto, and the top of the pull-out inner tube is fixedly connected to the pull-out outer tube, and the inner wall of the pull-out outer tube is fixedly connected to a straightening bar, and the other end of the straightening bar is fixedly connected to a straightening ring, and the inner part of the straightening ring is movably connected thereto with a drilling feed tube, and the drilling feed tube can rotate and move up and down relative to the straightening ring, and the bottom end of the drilling feed tube extends to the outside of the positioning outer tube and is fixedly installed with a drilling head, the top of the pull-out outer tube is spliced with a spliced outer tube short section, and the top of the drilling feed tube is spliced with a spliced inner tube short section, the spliced outer tube short section and the spliced inner tube short section are adapted to the drilling machine, and the inner wall of the positioning outer tube is fixedly connected with a one-way ring, and the one-way ring is movably sleeved on the outer wall of the drilling feed tube The drilling feed pipe can only rotate relative to the one-way ring, a one-way tapered hole is provided on the top surface of the one-way ring, a one-way straight hole is provided on the bottom surface of the one-way ring, the one-way tapered hole is connected with the one-way straight hole, a one-way ball is movably inserted inside the one-way tapered hole, a U-shaped limit frame matched with the one-way ball is fixedly connected on the top surface of the one-way ring, a lower sealing piece is provided on the outside of the positioning outer tube, a capture structure is provided on the top surface of the lower sealing piece, an upper sealing piece is installed on the top of the capture structure, a water supply structure is installed on the top surface of the upper sealing piece, a sampler is installed on the water supply structure, and a fixed-angle driver located in the middle of the upper sealing piece is provided on the top surface of the upper sealing piece. A straightening bar and a straightening ring can be set on the inner wall of the spliced outer tube short section for straightening the spliced inner tube short section, and the spliced inner tube short section can move up and down and rotate relative to the straightening ring.

Preferably, the lower blocking member includes a lower blocking disk, which is fixedly sleeved on the outside of the positioning outer tube, and a signal line is fixedly inserted on the lower blocking disk, the signal line runs through the lower blocking disk, and the bottom end of the lower blocking disk is fixedly connected to a mud sensor, which is fixedly mounted on the surface of the positioning outer tube, and the other end of the signal line is electrically connected to the extraction controller; a lower annular groove is provided on the side of the lower blocking disk, and a lower ring-mounted airbag is movably sleeved inside the lower annular groove, and an air pressure tube is fixedly connected to the lower ring-mounted airbag, and the other end of the air pressure tube extends to the outside of the lower blocking disk and is connected to the booster air pump, and a lower sealing ring located on the outside of the lower ring-mounted airbag is movably sleeved inside the lower annular groove, and the outer side of the lower sealing ring extends from the inside of the lower annular groove, and a stop tube is fixedly mounted on the top surface of the lower blocking disk, and the stop tube can be extended and shortened but cannot be separated, and the signal line and the air pressure tube are both formed by connecting multiple sections of spliced short sections end to end, and the spliced short sections are connected by quick connectors.

Preferably, the intake structure includes an inner intake tube and an outer intake tube, both of which are fixedly connected to the top surface of the lower sealing disk, the outer intake tube is movably sleeved on the outside of the inner intake tube, the positioning outer tube, the signal line, the air pressure tube and the stop tube are movably inserted into the interior of the inner intake tube, the signal line and the air pressure tube are curved inside the inner intake tube, a water seepage hole is provided on the outer intake tube, a tubular piston is slidably inserted in the annular interlayer between the inner intake tube and the outer intake tube, four intake through holes are provided inside the tubular piston, the intake tube is slidably inserted in the interior of the intake through hole, a branch plate is fixedly connected to the bottom surface of the intake tube, and the bottom end of the branch plate is fixedly connected to the top surface of the lower sealing disk.

Preferably, the upper sealing member includes an upper sealing disk, which is fixedly sleeved on the outside of the pull-out outer tube, an upper ring groove is provided on the side of the upper sealing disk, an upper annular airbag is movably sleeved inside the upper ring groove, an upper sealing ring is movably sleeved outside the upper annular airbag, and the upper sealing ring is slidably inserted into the interior of the upper ring groove, four "X"-shaped channels are provided inside the upper sealing disk, and the four "X"-shaped channels are evenly distributed on the upper sealing disk, the top end of the tubular piston is fixedly connected to the bottom surface of the upper sealing disk, the bottom end of the "X"-shaped channel is connected to the intake through hole, the signal line and the air pressure tube pass through the upper sealing disk, the signal line and the air pressure tube are fixedly inserted into the interior of the upper sealing disk, the air pressure tube is fixedly connected to a branch pipe located inside the upper sealing disk, the branch pipe is connected to the upper annular airbag, and the top end of the stop tube is fixedly connected to the bottom surface of the upper sealing disk.

Preferably, the water supply structure includes a water supply ring, the bottom end of which is fixedly connected to the top surface of the upper sealing disk, the water supply ring is movably sleeved on the outside of the pull-out outer tube, four water supply internal thread grooves are provided on the top surface of the water supply ring, a water supply cone groove is provided on the bottom surface of the inner cavity of the water supply internal thread groove, a water supply channel is provided on the bottom surface of the inner cavity of the water supply cone groove, the bottom end of the water supply channel is open and the opening is provided on the bottom surface of the water supply ring, the four water supply channels correspond one-to-one to the four "X"-shaped channels, the top end of the "X"-shaped channel is connected to the bottom end of the water supply channel, and the inside of the water supply ring is provided with an energy storage chamber located on the left side of the water supply channel A guide channel is provided on the right side surface of the inner cavity of the energy storage chamber, and a sealing cone groove is provided on the right side surface of the inner cavity of the guide channel, which is connected to the water supply channel, and an energy storage piston is connected to the left side of the inner cavity of the energy storage chamber through an energy storage spring transmission, and the right end of the energy storage piston is fixedly connected to a guide column, which is slidably inserted in the interior of the guide channel, and the right end of the guide column is fixedly connected to a conical sealing part, which is adapted to the sealing cone groove, and the right end of the conical sealing part is fixedly connected to a linkage push rod, and the right end of the linkage push rod extends from the inner side of the water supply ring, and the linkage push rod is movably inserted in the interior of the water supply ring.

Preferably, the sampler includes a sampling tank, the bottom end of the sampling tank is movably inserted into the inside of the water supply internal thread groove, the water supply cone groove, and the water supply channel, an air vent is provided on the top surface of the sampling tank, an internal thread hole is provided in the middle of the sampling tank on the top surface, a lifting rod is movably inserted into the inside of the internal thread hole, a lifting ring is fixedly connected to the top end of the lifting rod, a fixed thread located at the bottom is fixedly connected to the surface of the lifting ring, the fixed thread cooperates with the thread of the internal thread hole, a closed piston located inside the sampling tank is movably sleeved at the bottom end of the lifting rod, the closed piston is slidably inserted into the inside of the sampling tank, a locking thread located at the bottom is installed on the outer surface of the sampling tank, the locking thread cooperates with the thread of the water supply internal thread groove, a water inlet check valve is installed on the bottom end of the sampling tank in cooperation with the thread, and the water inlet check valve is slidably inserted into the inside of the water supply channel.

Preferably, the fixed angle driver includes a positioning platform, which is fixedly connected to the top surface of the upper sealing disk and located on the inner side of the water supply ring, the positioning platform is fixedly sleeved on the outside of the pulling outer tube, a power ring cavity located at its top is opened inside the positioning platform, a positioning ring is fixedly connected to the inner side surface of the inner cavity of the power ring cavity, a driving wire wheel is movably sleeved on the outside of the positioning ring, a positioning ring groove is opened on the inner wall of the driving wire wheel, the positioning ring is slidably inserted in the interior of the positioning ring groove, a traction line is wound around the outside of the driving wire wheel, the other end of the traction line extends from the top surface of the positioning platform and is fixedly connected to the surface of the booster air pump, a return spring is fixedly connected between the top surface of the driving wire wheel and the top surface of the inner cavity of the power ring cavity, the return spring is inclined, and the return spring is used to apply rotational force to the driving wire wheel, an angle limit block is fixedly connected to the top surface of the driving wire wheel, two angle positioning blocks are provided inside the power ring cavity, and the angle The limit block is located between the two angle positioning blocks, and the angle positioning block is fixedly connected to the inner wall of the power ring cavity. An annular through hole is provided on the bottom surface of the inner cavity of the power ring cavity, and a transmission spring piece is fixedly connected to the bottom surface of the driving line wheel, and the transmission spring piece is movably inserted in the inside of the annular through hole. A mounting ring groove located at its bottom is provided on the side of the positioning platform, and a damping rubber pad is provided on the inner wall of the mounting ring groove to increase the friction force exerted on the rotating ring so that the rotating ring will not rotate in the opposite direction. A rotating ring is slidably inserted in the interior of the mounting ring groove, and a fixed ratchet ring is fixedly connected to the top surface of the rotating ring. The top end of the fixed ratchet ring is slidably inserted in the inside of the annular through hole and unidirectionally meshes with the transmission spring piece. A sloped arc platform is fixedly connected to the outer side surface of the rotating ring, and the sloped arc platform is adapted to the linkage top rod. The traction line is composed of multiple sections of spliced short sections connected end to end, and the spliced short sections are spliced with each other through quick connectors.

Preferably, it also includes a suction structure, which is arranged at the top of the drilling tool, and the suction structure includes a suction column, the bottom end of the suction column is fixedly connected with a docking tube, the docking tube is threadedly inserted into the inside of the spliced outer tube short section, a boss is fixedly connected to the top surface of the suction column, the outer thread of the boss is sleeved with a pressure cover located at its top, the inside of the boss is provided with a closed groove located in the middle, the inner wall of the closed groove is provided with a preliminary sealing ring located at its top, a pressing sleeve is slidably inserted into the inside of the closed groove, the preliminary sealing ring is slidably sleeved on the outside of the pressing sleeve, the top of the pressing sleeve extends to the outside of the closed groove and is fixedly connected with a pressure plate, the pressure plate The top surface is in contact with and connected with the top surface of the inner cavity of the pressure cover, a sealing packing is provided inside the closed groove, the bottom end of the pressure sleeve is pressed on the sealing packing, a suction cavity is provided inside the suction column, the suction cavity is connected with the butt pipe, a suction hole is provided on the surface of the suction column, the suction hole is connected with the suction cavity, an expansion disk is movably sleeved on the outside of the suction column, a buffer cavity is provided on the inner wall of the expansion disk, the buffer cavity is connected with the suction hole, a suction pipe is fixedly inserted on the outer side surface of the expansion disk, the other end of the suction pipe is connected with the extraction controller, and the spliced inner pipe short section is slidably inserted into the inside of the suction column, the butt pipe, the pressure cover, the closed groove, the pressure sleeve, the pressure plate, the sealing packing and the suction cavity.

3. Beneficial effects

Compared with the prior art, the advantages of the present invention are:

The drilling tool can be controlled by the drilling machine, not only to make the drilling tool drill downward inside the borehole, but also to lift the drilling tool upward so as to bring out the drilling tool. The acquisition structure can be controlled by the drilling tool so that groundwater can penetrate into the acquisition structure. The lower and upper sealing parts can be controlled by the drilling machine so that the lower and upper sealing parts can seal the borehole in sections. After the lower and upper sealing parts seal the borehole, the acquisition structure can be located in an independent space. Only the acquisition structure corresponds to The water in the formation can enter the intake structure, so that the water entering the intake structure can fully represent the water in its corresponding formation. By operating the fixed-angle driver, the fixed-angle driver can trigger the water supply structure, and the triggered water supply structure can open the corresponding sampler, so that the water inside the intake structure enters the sampler under the action of pressure difference, thereby achieving the purpose of sampling. The water inside the sampler is used as a water sample for groundwater survey. The survey results can better reflect the situation of water in different formations, and the survey results are more realistic, thereby improving the practicality of the hydrogeological drilling device.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of the structure of the drilling tool in FIG1 of the present invention;

FIG3 is a schematic diagram of the internal structure of FIG2 of the present invention;

FIG4 is a schematic diagram of the internal structure of the positioning outer tube in FIG3 of the present invention;

FIG5 is an enlarged schematic diagram of the structure at A in FIG4 of the present invention;

FIG6 is an enlarged schematic diagram of the structure at B in FIG4 of the present invention;

FIG7 is a schematic diagram of the internal structure of the ingestion structure in FIG3 of the present invention;

FIG8 is a schematic diagram of the internal structure of the upper blocking member in FIG3 of the present invention;

FIG9 is a schematic diagram of the internal structure of the fixed angle driver in FIG3 of the present invention;

FIG10 is a schematic diagram of the internal structure of the power ring cavity in FIG9 of the present invention from a top view;

FIG11 is a top view of the rotating ring in FIG9 of the present invention;

FIG12 is a schematic diagram of the internal structure of the water supply structure in FIG3 of the present invention;

FIG13 is a schematic diagram of the internal structure of the sampler in FIG3 of the present invention;

FIG14 is a schematic diagram of the internal structure of the suction structure in FIG1 of the present invention;

FIG. 15 is a schematic structural diagram of the bottom end of FIG. 4 of the present invention.

Description of the numbers in the figure:

1. Drilling machinery; 11. Drilling equipment; 12. Booster pump; 13. Extraction controller; 14. Drilling hole; 2. Drilling tools; 21. Positioning outer tube; 22. Pulling inner tube; 23. Pulling outer tube; 24. Straightening bar; 25. Straightening ring; 26. Drilling feed tube; 27. Drilling head; 28. Splicing outer tube short section; 29. Splicing inner tube short section; 210. One-way ring; 211. One-way tapered hole; 212. One-way straight hole; 213. One-way ball; 214. U-shaped limit frame; 3. Lower plugging piece; 31. Lower plugging plate; 32. Signal line; 33. Mud sensor; 34. Lower ring groove; 35, lower ring-mounted airbag; 36, air pressure tube; 37, lower sealing ring; 38, stop tube; 4, intake structure; 41, intake inner tube; 42, intake outer tube; 43, water seepage hole; 44, tubular piston; 45, intake through hole; 46, intake tube; 47, branching piece; 5, upper plugging piece; 51, upper plugging plate; 52, upper ring groove; 53, upper annular airbag; 54, upper sealing ring; 55, "J"-shaped channel; 6, water supply structure; 601, water supply ring; 602, water supply inner thread groove; 603, water supply cone groove; 604, water supply channel; 605, energy storage chamber; 606, Guide channel; 607, blocking cone groove; 608, energy storage spring; 609, energy storage piston; 610, guide column; 611, cone blocking piece; 612, linkage push rod; 7, sampler; 71, sampling tank; 72, air vent; 73, internal thread hole; 74, lifting rod; 75, lifting ring; 76, fixed thread; 77, closed piston; 78, locking thread; 79, water inlet check valve; 8, fixed angle driver; 801, positioning platform; 802, power ring cavity; 803, positioning ring; 804, driving line wheel; 805, positioning ring groove; 806, traction line; 807, Return spring; 808, angle limit block; 809, angle positioning block; 810, annular through hole; 811, transmission spring; 812, mounting ring groove; 813, rotating ring; 814, fixed ratchet ring; 815, slope arc platform; 9, suction structure; 901, suction column; 902, butt pipe; 903, boss; 904, pressure cover; 905, closed groove; 906, preliminary sealing ring; 907, pressure sleeve; 908, pressure plate; 909, sealing packing; 910, suction chamber; 911, suction hole; 912, expansion plate; 913, buffer chamber; 914, suction tube.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

Please refer to Figures 1-15, a hydrogeological drilling device includes a drilling machine 1, the drilling machine 1 includes a drilling tool 11 and a drilling hole 14, the drilling machine 11 is located on the ground, a booster air pump 12 and an extraction controller 13 are installed on the top surface of the drilling machine 11, the drilling hole 14 is opened on the ground, and a drilling tool 2 is movably inserted inside the drilling hole 14, and the drilling tool 2 can be connected to the drilling machine 11 by transmission.

The drilling tool 2 includes a positioning outer tube 21, which is located inside the drilling hole 14. A pull-out inner tube 22 is movably inserted inside the positioning outer tube 21. The top of the pull-out inner tube 22 is fixedly connected to a pull-out outer tube 23. A straightening bar 24 is fixedly connected to the inner wall of the pull-out outer tube 23. The other end of the straightening bar 24 is fixedly connected to a straightening ring 25. A drilling feed pipe 26 is movably inserted inside the straightening ring 25. The drilling feed pipe 26 can rotate and move relative to the straightening ring 25. The bottom end of the drilling feed pipe 26 extends to the outside of the positioning outer pipe 21 and is fixedly installed with a drilling head 27. The top of the pulling outer pipe 23 is spliced with a spliced outer pipe short section 28, and the top of the drilling feed pipe 26 is spliced with a spliced inner pipe short section 29. The spliced outer pipe short section 28 and the spliced inner pipe short section 29 are adapted to the drilling machine 11. A one-way ring 210 is fixedly connected to the inner wall of the positioning outer pipe 21. The one-way ring 210 is movably sleeved on the outside of the drilling feed pipe 26. The feed pipe 26 can only rotate relative to the one-way ring 210. A one-way tapered hole 211 is provided on the top surface of the one-way ring 210, and a one-way straight hole 212 is provided on the bottom surface of the one-way ring 210. The one-way tapered hole 211 is connected to the one-way straight hole 212. A one-way ball 213 is movably inserted inside the one-way tapered hole 211. A U-shaped limiting frame 214 adapted to the one-way ball 213 is fixedly connected to the top surface of the one-way ring 210. A lower blocking member 3 is provided on the outside of the positioning outer tube 21. The lower blocking member 3 An intake structure 4 is provided on the top surface of the component 3, an upper sealing component 5 is installed on the top of the intake structure 4, a water supply structure 6 is installed on the top surface of the upper sealing component 5, a sampler 7 is installed on the water supply structure 6, and a fixed-angle driver 8 is provided in the middle of the upper sealing component 5 on the top surface. A straightening bar 24 and a straightening ring 25 can be provided on the inner wall of the spliced outer pipe short section 28, which are used to straighten the spliced inner pipe short section 29. The spliced inner pipe short section 29 can move up and down and rotate relative to the straightening ring 25.

The lower plugging member 3 includes a lower plugging plate 31, which is fixedly sleeved on the outside of the positioning outer tube 21, and a signal line 32 is fixedly plugged on the lower plugging plate 31, and the signal line 32 runs through the lower plugging plate 31. The bottom end of the lower plugging plate 31 is fixedly connected to a mud sensor 33, and the mud sensor 33 is fixedly installed on the surface of the positioning outer tube 21. The other end of the signal line 32 is electrically connected to the extraction controller 13. A lower annular groove 34 is opened on the side of the lower plugging plate 31, and a lower ring-mounted airbag 35 is movably sleeved inside the lower annular groove 34. The lower ring-mounted airbag 35 is fixedly connected to the lower ring-mounted airbag 35. It is connected to an air pressure tube 36, the other end of which extends to the outside of the lower sealing disk 31 and is connected to the booster air pump 12. The lower ring groove 34 has an internal movable sleeve with a lower sealing ring 37 located on the outside of the lower ring-mounted airbag 35, and the outer side of the lower sealing ring 37 extends from the inside of the lower ring groove 34. A stop tube 38 is fixedly installed on the top surface of the lower sealing disk 31. The stop tube 38 can be extended and shortened but cannot be separated. The signal line 32 and the air pressure tube 36 are both composed of multiple sections of spliced short sections connected end to end, and the spliced short sections are connected by quick connectors.

The intake structure 4 includes an intake inner tube 41 and an intake outer tube 42, both of which are fixedly connected to the top surface of the lower sealing disk 31, and the intake outer tube 42 is movably sleeved on the outside of the intake inner tube 41, and the positioning outer tube 21, the signal line 32, the air pressure tube 36, and the stop tube 38 are movably inserted into the interior of the intake inner tube 41, and the signal line 32 and the air pressure tube 36 are curved inside the intake inner tube 41, and a water seepage hole 43 is opened on the intake outer tube 42, and a tubular piston 44 is slidably inserted in the annular interlayer between the intake inner tube 41 and the intake outer tube 42, and four intake through holes 45 are opened inside the tubular piston 44, and an intake tube 46 is slidably inserted inside the intake through hole 45, and a support plate 47 is fixedly connected to the bottom surface of the intake tube 46, and the bottom end of the support plate 47 is fixedly connected to the top surface of the lower sealing disk 31.

The upper plugging member 5 includes an upper plugging plate 51, which is fixedly sleeved on the outside of the pull-out outer tube 23. An upper annular groove 52 is provided on the side of the upper plugging plate 51. An upper annular airbag 53 is movably sleeved inside the upper annular groove 52. An upper sealing ring 54 is movably sleeved outside the upper annular airbag 53. The upper sealing ring 54 is slidably inserted inside the upper annular groove 52. Four "X"-shaped channels 55 are provided inside the upper plugging plate 51. The four "X"-shaped channels 55 are evenly distributed on the upper plugging plate. 51, the top end of the tubular piston 44 is fixedly connected to the bottom surface of the upper sealing disk 51, the bottom end of the X-shaped channel 55 is connected to the intake through hole 45, the signal line 32 and the air pressure tube 36 pass through the upper sealing disk 51, the signal line 32 and the air pressure tube 36 are fixedly plugged into the interior of the upper sealing disk 51, the air pressure tube 36 is fixedly connected to a branch tube located inside the upper sealing disk 51, the branch tube is connected to the upper annular airbag 53, and the top end of the stop tube 38 is fixedly connected to the bottom surface of the upper sealing disk 51.

The water supply structure 6 includes a water supply ring 601, the bottom end of which is fixedly connected to the top surface of the upper sealing plate 51, and the water supply ring 601 is movably sleeved on the outside of the pull-out outer tube 23. Four water supply internal thread grooves 602 are provided on the top surface of the water supply ring 601, and a water supply cone groove 603 is provided on the bottom surface of the inner cavity of the water supply internal thread groove 602. A water supply channel 604 is provided on the bottom surface of the inner cavity of the water supply cone groove 603, and the bottom end of the water supply channel 604 is open and the opening is provided on the bottom surface of the water supply ring 601. The four water supply channels 604 correspond to the four "X"-shaped channels 55 one by one, and the top of the "X"-shaped channel 55 is connected to the bottom end of the water supply channel 604. An energy storage chamber 605 is provided inside the water supply ring 601 and is located on the left side of the water supply channel 604. The inner cavity of the energy storage chamber 605 A guide channel 606 is provided on the right side surface, and a blocking cone groove 607 is provided on the right side surface of the inner cavity of the guide channel 606, and the blocking cone groove 607 is connected to the water supply channel 604. The left side of the inner cavity of the energy storage chamber 605 is connected to the energy storage piston 609 through the energy storage spring 608. The right end of the energy storage piston 609 is fixedly connected to the guide column 610, and the guide column 610 is slidably inserted in the guide channel 606. The right end of the guide column 610 is fixedly connected to the conical blocking member 611, which is adapted to the blocking cone groove 607. The right end of the conical blocking member 611 is fixedly connected to the linkage push rod 612, and the right end of the linkage push rod 612 extends from the inner side of the water supply ring 601, and the linkage push rod 612 is movably inserted in the water supply ring 601.

The sampler 7 includes a sampling tank 71, the bottom end of which is movably inserted into the water supply internal thread groove 602, the water supply cone groove 603, and the water supply channel 604. A vent hole 72 is provided on the top surface of the sampling tank 71, and an internal thread hole 73 is provided on the top surface of the sampling tank 71, which is located in the middle. A lifting rod 74 is movably inserted into the internal thread hole 73, and a lifting ring 75 is fixedly connected to the top of the lifting rod 74. A fixed thread 76 located at the bottom of the lifting ring 75 is fixedly connected to the surface of the lifting ring 75. The fixing thread 76 is threadedly matched with the internal threaded hole 73, and the bottom end of the lifting rod 74 is movably sleeved with a closed piston 77 located inside the sampling tank 71. The closed piston 77 is slidably inserted into the interior of the sampling tank 71. A locking thread 78 located at the bottom of the sampling tank 71 is installed on the outer surface of the sampling tank 71. The locking thread 78 is threadedly matched with the internal threaded groove 602 of the water supply. A water inlet check valve 79 is threadedly installed on the bottom end of the sampling tank 71, and the water inlet check valve 79 is slidably inserted into the interior of the water supply channel 604.

The fixed angle driver 8 includes a positioning platform 801, which is fixedly connected to the top surface of the upper sealing plate 51 and located on the inner side of the water supply ring 601. The positioning platform 801 is fixedly sleeved on the outside of the outer pulley 23. The interior of the positioning platform 801 is provided with a power ring cavity 802 located at the top thereof. A positioning ring 803 is fixedly connected to the inner side of the inner cavity of the power ring cavity 802. A driving wire wheel 804 is movably sleeved on the outside of the positioning ring 803. A positioning ring groove 805 is provided on the inner wall of the driving wire wheel 804. The positioning ring 803 is slidably inserted in the positioning ring groove 80 5, a traction line 806 is wound around the outside of the driving wire wheel 804, and the other end of the traction line 806 extends from the top surface of the positioning platform 801 and is fixedly connected to the surface of the booster air pump 12, and a return spring 807 is fixedly connected between the top surface of the driving wire wheel 804 and the top surface of the inner cavity of the power ring cavity 802, and the return spring 807 is inclined. The return spring 807 is used to apply a rotational force to the driving wire wheel 804, and an angle limit block 808 is fixedly connected to the top surface of the driving wire wheel 804. Two angle positioning blocks 809 are provided inside the power ring cavity 802. The angle limit block 808 is located between the two angle positioning blocks 809, and the angle positioning block 809 is fixedly connected to the inner wall of the power ring cavity 802. An annular through hole 810 is provided on the bottom surface of the inner cavity of the power ring cavity 802. A transmission spring piece 811 is fixedly connected to the bottom surface of the driving wire wheel 804. The transmission spring piece 811 is movably inserted in the inside of the annular through hole 810. A mounting ring groove 812 is provided on the side of the positioning platform 801 at its bottom. A damping rubber pad is provided on the inner wall of the mounting ring groove 812 to increase the friction force on the rotating ring 813 so that the rotating ring 813 can rotate. The swivel ring 813 will not rotate in the opposite direction, and the mounting ring groove 812 has a swivel ring 813 slidably inserted inside thereof, and a fixed ratchet ring 814 is fixedly connected to the top surface of the swivel ring 813, and the top end of the fixed ratchet ring 814 is slidably inserted into the annular through hole 810 and unidirectionally meshes with the transmission spring piece 811, and a sloped arc platform 815 is fixedly connected to the outer surface of the swivel ring 813, and the sloped arc platform 815 is adapted to the linkage top rod 612, and the traction line 806 is formed by connecting multiple sections of spliced short sections end to end, and the spliced short sections are spliced together by quick connectors.

The drilling tool 2 also includes a suction structure 9, which is arranged at the top of the drilling tool 2. The suction structure 9 includes a suction column 901, and the bottom end of the suction column 901 is fixedly connected with a docking tube 902, and the docking tube 902 is threadedly inserted into the interior of the spliced outer tube short section 28. A boss 903 is fixedly connected to the top surface of the suction column 901, and the outer thread of the boss 903 is sleeved with a pressure cover 904 located at the top thereof. The inside of the boss 903 is provided with a closed groove 905 located in the middle thereof, and the inner wall of the closed groove 905 is provided with a preliminary sealing ring 906 located at the top thereof. A pressing sleeve 907 is slidably inserted into the inside of the closed groove 905, and the preliminary sealing ring 906 is slidably sleeved on the outside of the pressing sleeve 907. The top of the pressing sleeve 907 extends to the outside of the closed groove 905 and is fixedly connected with a pressure plate 908, and the top surface of the pressure plate 908 is in contact with the top surface of the inner cavity of the pressure cover 904. A sealing packing 909 is provided inside the closed groove 905, and the bottom end of the pressing sleeve 907 is pressed on the sealing packing 909. A suction chamber 910 is provided inside the suction column 901, and the suction chamber 910 is communicated with the butt pipe 902. A suction hole 911 is provided on the surface of the suction column 901, and the suction hole 911 is communicated with the suction chamber 910. An expansion disk 912 is movably sleeved on the outside of the suction column 901, and a buffer chamber 913 is provided on the inner wall of the expansion disk 912, and the buffer chamber 913 is communicated with the suction hole 911. A suction pipe 914 is fixedly inserted on the outer surface of the expansion disk 912, and the other end of the suction pipe 914 is communicated with the extraction controller 13. The spliced inner pipe short section 29 is slidably inserted into the interior of the suction column 901, the butt pipe 902, the pressure cover 904, the closed groove 905, the pressing sleeve 907, the pressure plate 908, the sealing packing 909, and the suction chamber 910.

working principle:

First, the drilling machine 11 injects clean water into the interior of the spliced inner tube short section 29 under its own clean water injection function, and then the clean water passes through the drilling feed pipe 26 and flows out from the drilling head 27, and then the mud level inside the drilling hole 14 rises, and then the bottom end of the positioning outer tube 21 is immersed in the mud, and then the bottom of the mud sensor 33 is immersed in the mud, and then the mud sensor 33 sends a signal to the extraction controller 13 through the signal line 32, and then the extraction controller 13 generates a suction force, and then the mud inside the drilling hole 14 passes through the positioning outer tube 21, the inner tube 22, the outer tube 23, and the spliced outer tube short section under the action of the suction force. 28, the butt joint 902, the suction chamber 910, the suction hole 911, the buffer chamber 913, and the suction pipe 914 enter the extraction controller 13 and discharge the mud, thereby controlling the liquid level inside the drilling hole 14 so that the liquid level is not higher than the mud sensor 33, and then the spliced inner tube short section 29 is connected to the drilling machine 11 by transmission, and then the drilling machine 11 rotates with the drilling head 27 through the spliced inner tube short section 29 and the drilling feed pipe 26 under its own rotation drive function. In this process, an external force is applied to the spliced outer tube short section 28, so that the spliced outer tube short section 28 will not rotate with the spliced inner tube short section 29, and at the same time, the drilling machine 11 Under its own downward pressure function, the inner tube short section 29 and the drilling feed pipe 26 move downward with the drilling head 27 to achieve the effect of drilling. Then, the drilling feed pipe 26 moves downward with the positioning outer tube 21, the inner tube 22, the outer tube 23, the outer tube short section 28 and the suction structure 9 through the one-way ring 210. Then, when the length of the spliced outer tube short section 28 and the spliced inner tube short section 29 leaking from the top of the drilling hole 14 is short, the clean water injection function, the rotation drive function and the downward pressure function of the drilling machine 11 are turned off. After that, the mud level in the drilling hole 14 continues to drop with the continuous discharge, and then the mud sense The pressure sensor 33 is completely leaked from the mud, and then the controller 13 is extracted to shut down the suction force. Then the one-way ball 213 sinks into the one-way tapered hole 211 and blocks it to prevent the mud above the one-way ring 210 from flowing back. Then the spliced inner pipe short section 29 is separated from the transmission connection of the drilling rig 11, and then the pressure cap 904 is rotated. Then the pressure cap 904 moves upward relative to the boss 903, and then the pressure of the pressure sleeve 907 on the sealing packing 909 is reduced. Then the sealing packing 909 is radially restored and separated from the spliced inner pipe short section 29, and then the suction column 901 is rotated to disassemble the butt pipe 902 and the spliced outer pipe short section 28, and then The suction structure 9 moves upward until it is removed from the top of the spliced outer tube short section 28 and the spliced inner tube short section 29, then a spliced inner tube short section 29 is taken out and spliced to the top of the spliced inner tube short section 29, then a spliced outer tube short section 28 is taken out and sleeved on the outside of the spliced inner tube short section 29 and spliced to the top of the spliced outer tube short section 28, the splicing method adopts threaded splicing, then the suction structure 9 is sleeved on the outside of the spliced inner tube short section 29, then the suction structure 9 is spliced together with the spliced outer tube short section 28 through the butt tube 902, and then the gland 90 is rotated in the opposite direction. 4, then the gland 904 moves downward relative to the boss 903, and then the gland 904 applies pressure to the sealing packing 909 through the pressure plate 908 and the pressure sleeve 907, and then the sealing packing 909 is pressurized and radially extends to seal the gap between the spliced inner tube short section 29 and the sealing packing 909, and then the top of the spliced inner tube short section 29 is connected to the drilling machine 11 by transmission, and then the spliced short section is connected to the signal line 32, the air pressure tube 36, and the traction line 806 through the quick connector to extend the length of the signal line 32, the air pressure tube 36, and the traction line 806, and then the water injection function of the drilling machine 11 is turned on, The rotation drive function and the downward pressure function are turned on in sequence, and then the drilling head 27 continues to drill downward to increase the depth of the drilling hole 14. Then the positioning outer tube 21 moves downward with the lower plugging member 3, the intake structure 4, the upper plugging member 5, the water supply structure 6, the sampler 7, and the fixed angle driver 8. After that, the intake structure 4 reaches the first sampling depth, and then the water injection function, the rotation drive function, and the downward pressure function of the drilling machine 11 are turned off. Then the spliced inner tube short section 29 is separated from the drilling machine 11, and then the drilling machine 11 applies an upward lifting force to the spliced outer tube short section 28, and then the spliced outer tube short section 28 moves downward with the intake structure 4. The outer tube 23 is pulled upward, and then the outer tube 23 is pulled to move the upper blocking piece 5 upward, and then the lower blocking piece 3 is immobile under the action of gravity, and then the upper blocking piece 5 moves upward with the tubular piston 44, and then a receiving cavity is formed under the tubular piston 44, and then the spliced outer tube short section 28 is suspended, and then the booster air pump 12 is turned on, and then the booster air pump 12 inflates the lower annular airbag 35 and the upper annular airbag 53 through the air pressure tube 36, and then the lower annular airbag 35 and the upper annular airbag 53 radially extend and apply radial thrust to the lower sealing ring 37 and the upper sealing ring 54, and then the lower sealing ring 37 and the upper sealing ring 54 are It extends radially and fits with the inner wall of the drilling hole 14, and then an independent cavity is formed between the lower plugging disk 31 and the upper plugging disk 51. Then the water inside the corresponding formation of the independent cavity infiltrates into it, and then the water inside the independent cavity enters the receiving cavity through the seepage hole 43. Then wait for a period of time to make the water in the receiving cavity sufficient to ensure that the bottom end of the intake tube 46 is submerged in water, and then pull the traction line 806, and then the traction line 806 is released from the outside of the driving wheel 804 and drives it to rotate, and then the driving wheel 804 is separated from an angle positioning block 809 with an angle limit block 808, and then the driving wheel 804 is driven. 04 The meshing action between the transmission spring piece 811 and the fixed ratchet ring 814 drives the rotating ring 813 to rotate, and then the rotating ring 813 drives the slope arc platform 815 to rotate, and then the linkage push rod 612 contacts the inclined surface on the slope arc platform 815, and then the inclined surface on the slope arc platform 815 applies a thrust to the linkage push rod 612, and then the linkage push rod 612 drives the conical plugging member 611 to move to the left, and then the plugging cone groove 607 is opened, and then the water in the cavity is contained under the action of the pressure difference through the corresponding intake pipe 46, the intake through hole 45, the "X"-shaped channel 55, the water supply channel 604, the plugging cone groove 607. 07. The water inlet check valve 79 enters the sampling tank 71, and then the linkage push rod 612 slides onto the arc surface of the slope arc platform 815, and then the angle limit block 808 contacts another angle positioning block 809. At this time, the driving wire wheel 804 rotates forty-five degrees, causing the slope arc platform 815 to rotate forty-five degrees. Then the traction line 806 is released, and then the driving wire wheel 804 rotates in the opposite direction and resets under the elastic tension of the reset spring 807. During this process, the transmission spring 811 does not mesh with the fixed ratchet ring 814, and then the driving wire wheel 804 resets with the angle limit block 808, and then stops for a while. Allow enough water to enter the sampling tank 71, then pull the traction line 806 again to make the slope arc platform 815 rotate forty-five degrees again, then the linkage push rod 612 slides off the slope arc platform 815, and then the energy storage piston 609 moves to the right with the conical blocking member 611 through the guide column 610 under the action of the elastic force of the energy storage spring 608, and the conical blocking member 611 moves to the right with the linkage push rod 612, and then the conical blocking member 611 blocks the blocking cone groove 607, and the linkage push rod 612 is reset, and then the traction line 806 is released to reset the drive line wheel 804. At this time, the slope arc platform 815 is at the corresponding The upper sealing member 5 moves downward with the tubular piston 44 under the action of the gravity of the object on it, and then the tubular piston 44 squeezes the water in the cavity in the reverse direction, which has a blocking effect, until the bottom surface of the tubular piston 44 contacts the top surface of the lower sealing disk 31, and then the gas inside the lower annular airbag 35 and the upper annular airbag 53 is released through the booster air pump 12, and then the lower annular airbag 35 and the upper annular airbag 53 are elastically restored, and the lower sealing ring 37 and the upper sealing ring 54 are elastically restored, and then the lower sealing ring 37 , the upper sealing ring 54 is separated from the inner wall of the borehole 14, and then the drilling rig 11 is separated from the spliced outer tube short section 28, and then the spliced inner tube short section 29 is connected to the drilling rig 11 by transmission, and then the drilling work is continued, and the above is repeated to sample the water in the second, third and fourth target formations. After that, water samples are taken in the four sampling tanks 71, and then the spliced outer tube short section 28 and the spliced inner tube short section 29 are lifted up by the drilling rig 11 while disassembling the spliced outer tube short section 28 and the spliced inner tube short section 29. The process is the same as the traditional drilling process, and at the same time, the signal line 32, the air pressure tube 36, and the traction line 806 are Disassemble until the sampler 7 moves out from the top of the drilling hole 14, then rotate the sampler 7 to remove the sampler 7, then take out the empty sampler 7 and install it in the water supply internal thread groove 602, then pull the lifting rod 74 upward through the lifting ring 75, then the lifting rod 74 moves upward with the closed piston 77, then a vacuum state is formed in the cavity below the closed piston 77 inside the sampling tank 71, then the fixing thread 76 contacts the inner wall of the internal thread hole 73, then rotate the lifting rod 74, then the fixing thread 76 is threadedly fixed to the internal thread hole 73, and then the vacuum state inside the sampling tank 71 is Fix it, and then continue the sampling work. Then transport the removed sampler 7 to the detection site, and then rotate the lifting rod 74 in the opposite direction to separate the fixing thread 76 from the internal threaded hole 73. Then the sealing piston 77 moves downward for a distance under the action of the residual negative pressure inside the sampling tank 71. Then turn the sampler 7 over to make the bottom end of the sampling tank 71 tilt upward so that the water cannot flow out naturally. Then remove the water inlet check valve 79, and then press the lifting ring 75. Then the lifting ring 75 applies pressure to the water through the lifting rod 74 and the sealing piston 77, and then the water is injected into the detection container. Then the water is tested.

The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims (4)

1. A hydrogeological drilling device, comprising a drilling machine (1), characterized in that: the drilling machine (1) comprises a drilling tool (11) and a drilling hole (14), the drilling tool (11) is located on the ground, a booster air pump (12) and an extraction controller (13) are installed on the top surface of the drilling tool (11), the drilling hole (14) is opened on the ground, a drilling tool (2) is movably inserted inside the drilling hole (14), and the drilling tool (2) can be connected to the drilling tool (11) by transmission. 2. A hydrogeological drilling device according to claim 1, characterized in that: the drilling tool (2) comprises a positioning outer tube (21), the positioning outer tube (21) is located inside the drilling hole (14), a pull-out inner tube (22) is movably inserted inside the positioning outer tube (21), the top of the pull-out inner tube (22) is fixedly connected to the pull-out outer tube (23), a straightening bar (24) is fixedly connected to the inner wall of the pull-out outer tube (23), the other end of the straightening bar (24) is fixedly connected to a straightening ring (25), and the straightening ring (25) is fixedly connected to the inner wall of the pull-out outer tube (23). A drilling feed pipe (26) is movably inserted into the inner part of the drilling feed pipe (25), and the drilling feed pipe (26) can rotate and move up and down relative to the straightening ring (25). The bottom end of the drilling feed pipe (26) extends to the outside of the positioning outer pipe (21) and is fixedly installed with a drilling head (27). The top of the pulling outer pipe (23) is spliced with a spliced outer pipe short section (28), and the top of the drilling feed pipe (26) is spliced with a spliced inner pipe short section (29). The spliced outer pipe short section (28) and the spliced inner pipe short section (29) are compatible with the drilling machine (11). A one-way ring (210) is fixedly connected to the inner wall of the positioning outer tube (21), and the one-way ring (210) is movably sleeved on the outside of the drilling feed tube (26). The drilling feed tube (26) can only rotate relative to the one-way ring (210). A one-way tapered hole (211) is opened on the top surface of the one-way ring (210), and a one-way straight hole (212) is opened on the bottom surface of the one-way ring (210). The one-way tapered hole (211) is connected to the one-way straight hole (212), and a one-way ball (213) is movably inserted inside the one-way tapered hole (211). A U-shaped limit frame (214) matched with the one-way ball (213) is fixedly connected to the top surface of the one-way ring (210), a lower sealing member (3) is provided on the outside of the positioning outer tube (21), a collection structure (4) is provided on the top surface of the lower sealing member (3), an upper sealing member (5) is installed on the top of the collection structure (4), a water supply structure (6) is installed on the top surface of the upper sealing member (5), a sampler (7) is installed on the water supply structure (6), and a fixed angle driver (8) is provided on the top surface of the upper sealing member (5) located in the middle thereof. 3. A hydrogeological drilling device according to claim 2, characterized in that: the lower sealing member (3) includes a lower sealing disk (31), the lower sealing disk (31) is fixedly sleeved on the outside of the positioning outer tube (21), a signal line (32) is fixedly plugged on the lower sealing disk (31), the signal line (32) runs through the lower sealing disk (31), the bottom end of the lower sealing disk (31) is fixedly connected to a mud sensor (33), the mud sensor (33) is fixedly installed on the surface of the positioning outer tube (21), the other end of the signal line (32) is electrically connected to the extraction controller (13), and the lower sealing disk (31) is fixedly connected to the bottom end of the lower sealing disk (31). A lower annular groove (34) is provided on the side surface of the disk (31), a lower annular air bag (35) is movably sleeved inside the lower annular groove (34), an air pressure tube (36) is fixedly connected to the lower annular air bag (35), the other end of the air pressure tube (36) extends to the outside of the lower sealing disk (31) and is connected to the booster air pump (12), a lower sealing ring (37) located on the outside of the lower annular air bag (35) is movably sleeved inside the lower annular groove (34), the outer side of the lower sealing ring (37) extends from the inside of the lower annular groove (34), and a stop tube (38) is fixedly installed on the top surface of the lower sealing disk (31). 4. A hydrogeological drilling device according to claim 3, characterized in that it also includes a suction structure (9), the suction structure (9) is arranged at the top of the drilling tool (2), the suction structure (9) includes a suction column (901), the bottom end of the suction column (901) is fixedly connected with a butt pipe (902), the butt pipe (902) is threadedly inserted into the inside of the spliced outer pipe short section (28), and a boss (903) is fixedly connected to the top surface of the suction column (901), and the outer thread of the boss (903) is sleeved with a The top of the pressure cover (904) is provided with a sealed groove (905) in the middle of the boss (903), and the inner wall of the sealed groove (905) is provided with a preliminary sealing ring (906) at the top of the pressure cover (904). The inside of the sealed groove (905) is slidably inserted with a pressure sleeve (907), and the preliminary sealing ring (906) is slidably sleeved on the outside of the pressure sleeve (907). The top of the pressure sleeve (907) extends to the outside of the sealed groove (905) and is fixedly connected with a pressure plate (908). The top surface of the pressure plate (908) is in contact with the pressure cover (904). 04) is in contact with the top surface of the inner cavity, a sealing packing (909) is provided inside the sealed groove (905), the bottom end of the pressing sleeve (907) is pressed on the sealing packing (909), a suction cavity (910) is provided inside the suction column (901), the suction cavity (910) is connected with the butt pipe (902), a suction hole (911) is provided on the surface of the suction column (901), the suction hole (911) is connected with the suction cavity (910), an expansion disk (912) is movably sleeved outside the suction column (901), and the expansion disk (91 2) is provided with a buffer cavity (913), the buffer cavity (913) is communicated with the suction hole (911), a suction pipe (914) is fixedly plugged on the outer surface of the expansion disk (912), the other end of the suction pipe (914) is communicated with the extraction controller (13), and the spliced inner tube short section (29) is slidably plugged into the interior of the suction column (901), the butt tube (902), the pressure cover (904), the sealed groove (905), the pressure sleeve (907), the pressure plate (908), the sealing packing (909), and the suction cavity (910).