High-pressure plunger pump direct-pushing in-situ injection device

Abstract

The utility model relates to the technical field of soil and underground water remediation, and discloses a high-pressure plunger pump direct-push in-situ injection device which comprises a main drill rod, a drill bit is fixedly connected to one end of the main drill rod, a butt joint drill rod is arranged at the other end of the main drill rod, and a quick release assembly is arranged between the main drill rod and the butt joint drill rod. The main drill rod and the butt-joint drill rod are quickly disassembled, assembled and fixed through the quick disassembling assembly, the main drill rod and the butt-joint drill rod are of hollow structures, an injection nozzle is formed in the end, close to the drill bit, of the main drill rod, and injection conveying assemblies are arranged in the main drill rod and the butt-joint drill rod and convey external injection liquid to the injection nozzle. The anti-blocking assembly is arranged between the injection conveying assembly and the injection nozzle and prevents external particles from entering equipment through the injection nozzle, the drill rod is quickly disassembled and assembled through the quick disassembling assembly, different operation depths are flexibly adapted, the anti-blocking assembly achieves self-adaption anti-blocking and opening during injection, the problem that a traditional nozzle is frequently blocked is solved, and the anti-blocking effect is good. The problems that a traditional device is poor in adaptation and prone to blockage are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to soil and groundwater remediation technical field, concretely is a high pressure plunger pump direct push in situ injection device. BACKGROUND

[0002] The high pressure plunger pump direct push in situ injection device is a high-efficiency in situ medium conveying equipment specially designed for soil and groundwater remediation, engineering foundation reinforcement, ecological management and the like, and its core is that, without large-area excavation of strata, drilling tools are accurately sent to a target depth through direct push drilling technology, and then, relying on the power generated by the high pressure plunger pump, a remediation agent or the like is forcibly injected into the strata, so that the operation target of remediation is achieved, and the high pressure plunger pump direct push in situ injection device is different from traditional excavation remediation or low-pressure injection equipment and can adapt to complex working conditions such as low-permeability clay layers and gravel-containing strata.

[0003] The existing high pressure plunger pump direct push in situ injection device is mostly realized by cooperation of a drilling machine drill rod, a drill bit and an injection pipe to achieve the injection purpose. In injection construction, because the injection nozzle directly contacts the soil layer, granular soil is easily accumulated and blocked in the injection channel through the injection nozzle, and after the blockage, the machine needs to be stopped for cleaning, which greatly affects the construction efficiency. Therefore, the utility model provides a high pressure plunger pump direct push in situ injection device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a high pressure plunger pump direct push in situ injection device, to solve the problem that the existing high pressure plunger pump direct push in situ injection device is mostly realized by cooperation of a drilling machine drill rod, a drill bit and an injection pipe to achieve the injection purpose, in injection construction, because the injection nozzle directly contacts the soil layer, granular soil is easily accumulated and blocked in the injection channel through the injection nozzle, and after the blockage, the machine needs to be stopped for cleaning, which greatly affects the construction efficiency.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high pressure plunger pump direct push in situ injection device, which comprises: a main drill rod, one end of the main drill rod is fixedly connected with a drill bit, the other end of the main drill rod is provided with a butt joint drill rod, a quick release assembly is arranged between the main drill rod and the butt joint drill rod, the quick release assembly quickly disassembles and fixes the main drill rod and the butt joint drill rod, the main drill rod and the butt joint drill rod are hollow structures, an injection nozzle is arranged at one end of the main drill rod close to the drill bit, an injection transmission assembly is arranged in the main drill rod and the butt joint drill rod, the injection transmission assembly transmits external injection liquid to the injection nozzle, a blockage prevention assembly is arranged between the injection transmission assembly and the injection nozzle, and the blockage prevention assembly prevents external particles from entering the equipment through the injection nozzle.

[0006] The quick release assembly comprises a rotating groove arranged in the inner wall of one end of the main drill rod close to the butt joint drill rod, and an opening is arranged at the end of the main drill rod and communicates with the rotating groove.

[0007] Further include: the joint, the joint is fixedly connected with the butt joint drill rod, the outer ring of the joint is fixedly connected with the protruding block, the protruding block can enter the rotating groove through the opening and slide along the rotating groove;

[0008] The placing groove is arranged on the outer ring of the joint, the first spring is fixedly connected in the placing groove, and the end, away from the placing groove, of the first spring is fixedly connected with the clamping block;

[0009] The clamping groove is arranged on the side wall of the main drill rod, the extrusion block is arranged in the clamping groove, the side, away from the clamping block, of the extrusion block is fixedly connected with the pressing rod, and the other end of the pressing rod extends upwards along the height direction of the main drill rod to the outside of the main drill rod.

[0010] The injection transmission assembly comprises a plunger pump arranged outside the main drill rod, the liquid suction end of the plunger pump is connected with a liquid injection tank through a pipeline, the liquid outlet end of the plunger pump is threadedly connected with a transmission pipe, the transmission pipe extends to one end of the main drill rod close to the injection nozzle along the hollow structure of the main drill rod, the end of the transmission pipe close to the injection nozzle is provided with an injection cavity, and the injection cavity is arranged in the inside of the main drill rod and communicates with the injection nozzle.

[0011] The anti-blocking assembly comprises a blocking plate in sliding connection with the injection cavity, the blocking plate is in a barrel-shaped structure, the side, close to the drill bit, of the blocking plate is fixedly connected with a second spring, the end, away from the blocking plate, of the second spring is fixedly connected with the inner wall of the injection cavity, the second spring is internally provided with an extension rod, the end, close to the drill bit, of the extension rod is fixedly connected with the inner wall of the injection cavity, and the end, away from the drill bit, of the extension rod is fixedly connected with the blocking plate.

[0012] The second spring and the extension rod are provided with two groups, and the two groups of the second spring and the extension rod are uniformly and symmetrically arranged with the central axis of the blocking plate as a reference.

[0013] The end, away from the first spring, of the clamping block is provided with a guide inclined surface, the side, close to the clamping block, of the extrusion block is provided with an extrusion inclined surface, and the extrusion inclined surface is matched with the guide inclined surface.

[0014] The outer side of the quick release assembly is provided with a sealing ring.

[0015] The injection nozzle is provided with multiple groups, and the multiple groups are uniformly distributed in the circumferential direction of the main drill rod.

[0016] The clamping block and the clamping groove are provided with two groups and are symmetrically distributed at 180°, and the extension directions of the two groups of rotating grooves are consistent.

[0017] The end, away from the main drill rod, of the butt joint drill rod can be provided with the same quick release assembly, the butt joint drill rod can be connected and extended through the assembly, and the hollow structures of the butt joint drill rods are coaxially communicated after splicing.

[0018] The utility model at least has the following beneficial effects:

[0019] The utility model discloses a quick detachable assembly is arranged to realize quick dismounting and mounting drill rod, break through the traditional fixed size drill rod limit, flexible adaptation different operation depth, and the anti -blocking assembly realizes self -adaptation anti -blocking with the bucket -shaped baffle and the symmetrical spring, opens automatically when injecting, solves the traditional spout frequent blockage problem, improves the equipment continuous operation length, overall effective solution traditional device adaptation difference, low efficiency, easy to block etc. The pain point, realizes efficient, reliable, low -cost in -situ injection operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the quick detachable assembly partial schematic diagram of the utility model;

[0022] Figure 3 It is the main drill rod internal schematic diagram of the utility model;

[0023] Figure 4 It is the A area enlarged schematic diagram of the utility model;

[0024] Figure 5 It is the B area enlarged schematic diagram of the utility model.

[0025] In the drawing: 1, main drill rod;2, drill bit;3, butt joint drill rod;4, quick detachable assembly;41, rotary groove;42, opening;43, butt joint;44, protruding block;45, placement groove;46, first spring;47, clamping block;48, clamping groove;49, extrusion block;410, pressing rod;5, injection spout;6, injection transmission assembly;61, plunger pump;62, injection liquid tank;63, transmission pipe;64, injection cavity;7, anti -blocking assembly;71, baffle;72, second spring;73, telescopic rod;8, guide slope;9, extrusion slope;10, sealing ring. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] Please refer to Figures 1 to 5The utility model provides a technical scheme: a high pressure plunger pump straight pushes in situ injection device, including main drill rod 1, one end of main drill rod 1 is fixedly connected with drill bit 2, and the other end of main drill rod 1 is equipped with butt joint drill rod 3, and the quick release assembly 4 is equipped between main drill rod 1 and butt joint drill rod 3, and the quick release assembly 4 quickly disassembles and fixes with main drill rod 1 and butt joint drill rod 3, and main drill rod 1 and butt joint drill rod 3 are hollow structure, and the one end of main drill rod 1 near drill bit 2 is equipped with injection spout 5, and the inside of main drill rod 1 and butt joint drill rod 3 is equipped with injection transmission subassembly 6, and injection transmission subassembly 6 transmits the outside injection liquid to injection spout 5, and the injection transmission subassembly 6 is equipped with anti -blocking component 7 between injection spout 5, and anti -blocking component 7 prevents the outside particle to enter equipment through injection spout 5. Main drill rod 1 and butt joint drill rod 3 are made of 42CrMo high strength alloy steel material, and the material of the two is consistent and the same outer diameter, can bear axial pressure, adapts deep drilling demand, and drill bit 2 is WC-Co hard alloy material, and adapts sandy soil, clay, gravel containing complex stratum drilling, and quick release assembly 4 can realize the quick disassembly of main drill rod 1 and butt joint drill rod 3, and realizes the flexible adjustment of drilling depth through splicing. Main drill rod 1 and butt joint drill rod 3 are hollow structure, and design is both as injection liquid transmission path, and reduces overall weight, and injection transmission subassembly 6 can stably transmit the outside high pressure injection liquid to injection spout 5, and anti -blocking component 7 completely blocks injection spout 5 under non-injection state, prevents the invasion of the outside soil particle, and in injection state, automatically opens, does not hinder injection liquid flow.

[0028] The quick disassembly assembly 4 comprises a rotating groove 41 formed in the inner wall of the main drill rod 1 near the end of the butt joint drill rod 3, an opening 42 is formed in the end of the main drill rod 1, and the opening 42 is in communication with the rotating groove 41; further comprising: a butt joint 43, the butt joint 43 is fixedly connected with the butt joint drill rod 3, the outer ring of the butt joint 43 is fixedly connected with a protruding block 44, the protruding block 44 can enter the rotating groove 41 through the opening 42 and slide along the rotating groove 41; a placing groove 45 is formed in the outer ring of the butt joint 43, the first spring 46 is fixedly connected in the placing groove 45, and the clamping block 47 is fixedly connected at the end of the first spring 46 away from the placing groove 45; a clamping groove 48 is formed in the side wall of the main drill rod 1, the clamping groove 48 is provided with a pressing block 49, the pressing block 49 is fixedly connected with a pressing rod 410 at the side away from the clamping block 47, and the other end of the pressing rod 410 extends upward along the height direction of the main drill rod 1 to the outside of the main drill rod 1. The opening 42 is in communication with the axial section of the rotating groove 41 to allow the protruding block 44 to enter, the outer ring of the butt joint 43 is fixedly connected with two protruding blocks 44 in the circumferential direction, the size of the protruding block 44 is matched with the opening 42 and the rotating groove 41, the protruding block 44 can enter the axial section of the rotating groove 41 through the opening 42 and slide along the circumferential section of the rotating groove 41 to the locking position to realize the preliminary mechanical fixation. The clamping block 47 is made of 40Cr and has a surface hardness of HRC50-55 after quenching, is matched with the cross-sectional size of the clamping groove 48, can be clamped into the clamping groove 48 through the elastic force of the first spring 46, the clamping groove 48 is formed in the side wall of the main drill rod 1 and corresponds to the end of the circumferential section of the rotating groove 41, is fixed by the rotation positioning of the protruding block 44 and the elastic locking of the clamping block 47, is stable in connection and does not need tools for disassembly and assembly, solves the problems of time-consuming and laborious, and greatly improves the installation efficiency. When butt joint is needed, the protruding block 44 of the butt joint 43 is aligned with the opening 42 at the end of the main drill rod 1 and is inserted into the axial section of the rotating groove 41, is rotated clockwise to the end of the circumferential section, at this time, the first spring 46 in the placing groove 45 of the butt joint 43 pushes the clamping block 47 to pop out and is clamped into the clamping groove 48 of the main drill rod 1, double fixation is formed, when disassembled, the pressing rod 410 outside the main drill rod 1 is pressed, the pressing block 49 is driven to retract the clamping block 47 through the inclined surface cooperation to release the locking, the butt joint drill rod 3 is reversely rotated to make the protruding block 44 slide out of the opening 42 along the rotating groove 41, and the separation can be realized, and the whole process is completed without tools.

[0029] The injection transmission assembly 6 comprises a plunger pump 61 arranged outside the main drill rod 1, the liquid suction end of the plunger pump 61 is connected with an injection liquid tank 62 through a pipeline, the liquid outlet end of the plunger pump 61 is threadedly connected with a transmission pipe 63, the transmission pipe 63 extends along the hollow structure of the main drill rod 1 to one end of the main drill rod 1 close to the injection nozzle 5, an injection cavity 64 is formed in the end of the transmission pipe 63 close to the injection nozzle 5, and the injection cavity 64 is arranged in the main drill rod 1 and communicates with the injection nozzle 5. The injection liquid tank 62 stores the repair medicament, so that the injection liquid can be continuously supplied, the injection cavity 64 is arranged in the main drill rod 1 and communicates with each injection nozzle 5, the transmission pipe 63 is in sealing plug-in cooperation with the injection cavity 64, so that the leakage under high pressure can be avoided, and the whole process of stable transmission of the injection liquid from storage to injection can be realized.

[0030] The anti-blocking assembly 7 comprises a blocking plate 71 in sliding connection with the injection cavity 64, the blocking plate 71 is in a barrel structure, one side of the blocking plate 71 close to the drill bit 2 is fixedly connected with a second spring 72, one end of the second spring 72 away from the blocking plate 71 is fixedly connected with the inner wall of the injection cavity 64, the second spring 72 is internally provided with an extension rod 73, one end of the extension rod 73 close to the drill bit 2 is fixedly connected with the inner wall of the injection cavity 64, and the other end of the extension rod 73 away from the drill bit 2 is fixedly connected with the blocking plate 71. The blocking plate 71 is in a barrel structure, the gap between the outer wall of the blocking plate 71 and the inner wall of the injection cavity 64 is not greater than 0.1 mm, so that the sliding is smooth, and the particles are prevented from invading from the gap, and the extension rod 73 is used for limiting the deformation direction of the second spring 72, so that the blocking plate 71 is prevented from being stuck due to the deflection of the second spring 72. When the non-injection state, the barrel-shaped blocking plate 71 is tightly attached to the inner side of the injection nozzle 5 under the pre-tightening force of the second spring 72, and the sliding sealing cooperation between the blocking plate 71 and the injection cavity 64 completely blocks the invasion of the external soil particles and rock debris through the nozzle. When injection, the high-pressure injection liquid enters the injection cavity 64 to impact the blocking plate 71, overcomes the elastic force of the second spring 72, pushes the blocking plate 71 to compress the second spring 72 and slides along the injection cavity 64, so that the injection nozzle 5 communicates with the injection cavity 64, and the injection liquid is smoothly injected. After the injection is completed, the second spring 72 is automatically reset to push the blocking plate 71 to block the nozzle again, so that the whole process does not need to be manually operated, the problem that the traditional injection nozzle 5 is frequently blocked due to the invasion of particles is solved, and the continuous operation of the equipment is ensured.

[0031] The second spring 72 and the extension rod 73 are provided in two groups, and the two groups of the second spring 72 and the extension rod 73 are uniformly and symmetrically arranged with the center axis of the blocking plate 71 as the reference, so that the elastic force of the second spring 72 acting on the blocking plate 71 is balanced, the sliding is not biased, the sticking or sealing failure caused by unilateral force is avoided, and the service life of the anti-blocking assembly 7 is prolonged.

[0032] The guide inclined surface 8 is arranged at one end of the clamping block 47 away from the first spring 46, and the extrusion inclined surface 9 is arranged at one side of the extrusion block 49 close to the clamping block 47, the extrusion inclined surface 9 is matched with the guide inclined surface 8, the inclined angles of the extrusion inclined surface 9 and the guide inclined surface 8 are consistent, when the pressing rod 410 is pressed, the extrusion inclined surface 9 slides along the guide inclined surface 8, the axial force of the pressing rod 410 is converted into the radial force of the clamping block 47, the clamping block 47 is pushed to retract into the placing groove 45 against the elastic force of the first spring 46, the inclined surface matching design makes the unlocking action more labor-saving and reduces the wear of the clamping block 47 and the extrusion block 49.

[0033] The sealing ring 10 is arranged outside the quick release assembly 4, the sealing ring 10 is made of fluorine rubber, when the main drill rod 1 is connected with the butt joint drill rod 3, the sealing ring 10 is tightly attached to the outer walls of the main drill rod 1 and the butt joint drill rod 3, the gap between the main drill rod 1 and the butt joint drill rod 3 is completely sealed, and the mud is prevented from invading the inside of the quick release assembly 4 during drilling.

[0034] The injection nozzles are arranged in multiple groups and are uniformly distributed along the circumference of the main drill rod, the diameters of the injection nozzles 5 in each group are consistent, and the inner sides of the nozzles are all designed with round corner transitions to avoid vortex loss when the liquid medicine flows, the multiple groups of injection nozzles 5 are all directly communicated with the injection cavity 64 inside the main drill rod 1, the injection direction forms an angle of 45° with the axis of the main drill rod 1, and it is ensured that the injection liquid forms a ring-shaped coverage area when being sprayed, during work, the high-pressure injection liquid conveyed by the injection transmission assembly 6 is divided into each group of injection nozzles 5 through the injection cavity 64, because the nozzles are uniformly distributed in the circumference, the injection liquid can be sprayed out from different directions at the same time, and a 360° non-dead-angle spraying range is formed. The problem of concentrated accumulation or penetration blind area of the medicine caused by single-point injection is effectively avoided, and the medicine and the contaminated stratum are ensured to be fully contacted. At the same time, the uniformly distributed nozzle structure makes the pressure in the injection cavity 64 evenly distributed, reduces the impact of local high pressure on the main drill rod 1, and improves the structural stability of the device under the high-pressure injection working condition.

[0035] The clamping block and the clamping groove are both arranged in two groups and are symmetrically distributed at 180°, and the extension directions of the two groups of rotating grooves are consistent, during splicing, the two groups of protrusions 44 on the butt joint 43 are simultaneously inserted into the rotating grooves 41 through the opening 42 at the end of the main drill rod 1, when being rotated clockwise to the end, the two groups of clamping blocks 47 are simultaneously popped out under the elastic force of the first spring 46 and are respectively clamped into the corresponding clamping grooves 48, and a bidirectional symmetric locking structure is formed. The design makes the connection force of the main drill rod 1 and the butt joint drill rod 3 uniformly distributed on both sides, avoids the radial deflection or force concentration caused by a single locking structure, and greatly improves the connection stability compared with a single group structure. At the same time, the extension directions of the two groups of rotating grooves are consistent, the sliding tracks of the protrusions are ensured to be synchronous, the position does not need to be adjusted during disassembly and assembly, and the bidirectional synchronous unlocking can be realized by matching the symmetrically distributed pressing rod 410, the operation is more smooth, the unilateral wear of the clamping block and the clamping groove is reduced, and the service life of the quick release assembly 4 is prolonged.

[0036] The end of the butt joint drill rod 3 away from the main drill rod 1 can be provided with the same quick release assembly 4, through which the extension drill rod can be connected, and the hollow structure of the butt joint drill rod 3 is coaxially communicated after splicing, the number of the extension drill rod can be flexibly increased or decreased according to the requirement of the drilling target depth through the quick release assembly 4, and the whole drill rod equipment does not need to be replaced. The universality of each quick release assembly 4 makes the splicing operation completely consistent with the connection mode of the main drill rod 1 and the butt joint drill rod 3, and single joint splicing can be completed without additional tools. At the same time, the coaxially communicated hollow structure after splicing ensures that there is no leakage and no pressure loss of the high-pressure injection liquid in the transmission process, solves the problem that the traditional fixed-size drill rod cannot adapt to different depth pollution sources, greatly improves the operation range and practicality of the device, and reduces the construction cost.

[0037] During overall use, the main drill rod 1 and the butt joint drill rod 3 are spliced by the quick release assembly 4, the injection transmission assembly 6 is connected, then the drill rod with the drill bit 2 is driven by the straight push power equipment to penetrate the stratum to the target depth, in this process, the barrel-shaped blocking plate 71 of the anti-blocking assembly 7 is blocked under the action of the symmetrical second spring 72, after the plunger pump 61 is started, the high-pressure injection liquid pushes the blocking plate 71 to compress the second spring 72 through the transmission pipe 63 and the injection cavity 64, so that the injection port is communicated and the injection liquid is injected into the stratum, and after the injection is completed, the second spring 72 drives the blocking plate 71 to reset and block. Effectively solve the problem that the fixed size of the drill rod of the traditional device cannot adapt to different depth pollution sources, also avoid the problem that the particulate impurities enter the equipment through the injection port 5 to cause the equipment to be blocked, resulting in low efficiency, and realize efficient injection.

[0038] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or equipment.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high pressure plunger pump direct push in-place injection apparatus comprising: The utility model provides a main drill rod, its characterized in be: one end fixed connection has drill bit of main drill rod, another end is equipped with butt joint drill rod of main drill rod, is equipped with quick release assembly between main drill rod and butt joint drill rod, quick release assembly will main drill rod and butt joint drill rod quick detachable fixed, main drill rod and butt joint drill rod are hollow structure, the one end of main drill rod near drill bit is equipped with injection spout, main drill rod and butt joint drill rod inside are equipped with injection transmission assembly, injection transmission assembly will outside injection liquid transmission to injection spout, is equipped with anti -blocking subassembly between injection transmission assembly and injection spout, anti -blocking subassembly prevents outside particle to enter equipment through injection spout.

2. The high pressure syringe pump direct push in-place injection device of claim 1, wherein: The quick release assembly includes a rotating groove formed in the inner wall of the main drill rod near the butt joint drill rod, and the main drill rod end is provided with an opening, and the opening is communicated with the rotating groove. Further comprising: a butt joint, the butt joint is fixedly connected with the butt joint drill rod, the outer ring of the butt joint is fixedly connected with a protrusion, the protrusion can enter the rotating groove through the opening and slide along the rotating groove; A placing groove is formed on the outer ring of the butt joint, and a first spring is fixedly connected in the placing groove, and one end of the first spring away from the placing groove is fixedly connected with a clamping block; A clamping groove is formed on the side wall of the main drill rod, and an extrusion block is arranged in the clamping groove, one side of the extrusion block away from the clamping block is fixedly connected with a pressing rod, and the other end of the pressing rod extends upward along the height direction of the main drill rod to the outside of the main drill rod.

3. The high pressure syringe pump direct push in-place injection device of claim 1, wherein: The injection transmission assembly includes a plunger pump arranged outside the main drill rod, the suction end of the plunger pump is connected with an injection liquid tank through a pipeline, the outlet end of the plunger pump is threadedly connected with a transmission pipe, the transmission pipe extends along the hollow structure of the main drill rod to one end of the main drill rod near the injection spout, one end of the transmission pipe near the injection spout is provided with an injection cavity, and the injection cavity is formed in the main drill rod and communicated with the injection spout.

4. The high pressure syringe pump direct push in-place injection device of claim 1, wherein: The anti-blocking assembly includes a blocking plate slidably connected with the injection cavity, the blocking plate is in a barrel-shaped structure, one side of the blocking plate near the drill bit is fixedly connected with a second spring, one end of the second spring away from the blocking plate is fixedly connected with the inner wall of the injection cavity, the second spring is provided with a telescopic rod, one end of the telescopic rod near the drill bit is fixedly connected with the inner wall of the injection cavity, and the other end of the telescopic rod away from the drill bit is fixedly connected with the blocking plate.

5. The high pressure syringe pump direct push in-place injection device of claim 4, wherein: The second spring and the telescopic rod are provided with two groups, and the two groups of second springs and telescopic rods are uniformly and symmetrically arranged based on the central axis of the blocking plate.

6. The high pressure syringe pump direct push in-place injection device of claim 2, wherein: One end of the clamping block away from the first spring is provided with a guide inclined surface, and one side of the extrusion block near the clamping block is provided with an extrusion inclined surface, and the extrusion inclined surface is matched with the guide inclined surface.

7. The high pressure syringe pump direct push in-place injection device of claim 1, wherein: A sealing ring is arranged outside the quick release assembly.

8. The high pressure syringe pump direct push in-place injection device of claim 1, wherein: The injection spout is provided with multiple groups and is uniformly distributed along the circumference of the main drill rod.

9. The high pressure syringe pump direct push in-place injection device of claim 2, wherein: The clamping block and the clamping groove are provided with two groups and are symmetrically distributed at 180°, and the extension directions of the two groups of rotating grooves are consistent.

10. The high pressure syringe pump direct push in-place injection device of claim 1, wherein: One end of the butt joint drill rod away from the main drill rod can be provided with the same quick release assembly, the extended butt joint drill rod can be connected through the assembly, and the hollow structures of the butt joint drill rods are coaxially communicated after splicing.

Images