Visual polymer grouting device for blocking leakage channels of earth-rock dams

Abstract

The present invention belongs to the technical field of polymer grouting. A visual polymer grouting device for plugging leakage channels of earth-rock dams comprises a guide pipe, a camera arranged in the guide pipe, a cleaning pipe and a grouting pipe, and an isolation sleeve, a lower sealing plate is arranged at the bottom of the isolation sleeve, the isolation sleeve is matched with a sliding sleeve arranged at the lower part of the guide pipe, a transparent part corresponding to the camera is arranged on the lower sealing plate, a cleaning nozzle and a grouting head are also arranged on the lower sealing plate, the cleaning nozzle is arranged corresponding to the transparent part, the cleaning nozzle is connected to the cleaning pipe through a first connecting unit, and the grouting head is connected to the grouting pipe through a second connecting unit; the first connecting unit is used to connect and separate the cleaning nozzle and the cleaning pipe, and the second connecting unit is used to connect and separate the grouting head and the grouting pipe. The present application can realize secondary precise positioning and real-time monitoring of the polymer reaction process, and the grouting device can be reused.

Description

Technical Field

[0001] The invention belongs to the technical field of polymer grouting, and in particular relates to a visual polymer grouting device for blocking a leakage channel of an earth-rock dam. Background Art

[0002] With the rapid development of my country's economy, the construction of various infrastructures is also advancing simultaneously. Complex and diverse geotechnical engineering problems will occur during the construction and service of infrastructures such as highways, railways, bridges, levees, and tunnels. At present, the development of polymer grouting materials and their grouting technology is becoming more and more perfect, and the effect is remarkable in solving specific geotechnical engineering disaster problems. It has become a key research direction in the field of geotechnical engineering. It has been widely used in the lifting process of underground pipelines, factory buildings, roads, ballastless tracks and other structures, as well as in the anti-seepage and plugging rescue operations of various underground projects and levee projects, and has achieved excellent results. Polymer grouting technology is an engineering maintenance technology developed in the late 1970s. It is mainly used for building foundation reinforcement or floor repair abroad. The basic principle of polymer grouting technology is: according to a certain ratio (1:1), a two-component polymer material (special resin and hardener) is injected into the foundation. After the two materials are mixed, a chemical reaction occurs, and the volume expands rapidly to form a foam-like solid, thereby achieving the purpose of filling the voids and reinforcing the foundation.

[0003] Since the 1970s, polymer grouting technology, an engineering maintenance technology, has been gradually developed, and its application research in dam anti-seepage and plugging has gradually become a hot direction. Its basic principle is to inject a certain ratio of two-component polymer materials (hardener and special resin) into the pores of the dam. After the two materials are mixed, a chemical reaction occurs, the volume expands and solidifies, and the purpose of filling the pores and preventing seepage and plugging leaks is achieved. This two-component polymer grouting technology has many excellent engineering characteristics such as rapid and adjustable response, high expansion rate, waterproof, environmental protection, fast construction process, small structural damage and good durability.

[0004] Most of the existing reservoirs in my country were built in the 1950s and 1960s. Due to the funding and technical conditions at the time, many reservoirs have safety hazards, and a large proportion of earth-rock dams are prone to leakage. The anti-seepage and plugging treatment of earth-rock dams is related to the national economy and people's livelihood. The introduction of polymer grouting technology has found an effective way to eliminate the dangers and reinforce the embankment diseases. How to achieve precise grouting for the leakage channel has become an issue that cannot be ignored. After the approximate location of the leakage channel is determined using detection methods such as electrical method, transient electromagnetic method, ground penetrating radar method and sonar, there is an urgent need for a device that can integrate secondary precise positioning, real-time monitoring and grouting. Summary of the invention

[0005] The purpose of the present invention is to provide a visual polymer grouting device for blocking leakage channels of earth-rock dams in view of the above-mentioned problems and shortcomings. The device has a reasonable structural design, can greatly improve the effect of grouting molding, and can fill the leakage diseased area. During the construction process, it can achieve secondary precise positioning and real-time monitoring of the polymer reaction process, and the grouting device can be reused.

[0006] To achieve the above purpose, the technical solution adopted is:

[0007] A visual polymer grouting device for blocking leakage channels of earth-rock dams, comprising:

[0008] Guide tube;

[0009] A camera device, a cleaning pipe and a grouting pipe arranged in the guide pipe; and

[0010] An isolation sleeve, wherein a lower sealing plate is provided at the bottom of the isolation sleeve, the isolation sleeve is matched with a sliding sleeve and is arranged at the lower part of the guide pipe, the lower sealing plate is provided with a transparent part corresponding to the camera device, and the lower sealing plate is also provided with a cleaning nozzle and a grouting head, the cleaning nozzle is arranged corresponding to the transparent part, the cleaning nozzle is connected to the cleaning pipe through a first connecting unit, and the grouting head is connected to the grouting pipe through a second connecting unit;

[0011] The first connection unit is used to connect and separate the cleaning nozzle and the cleaning pipe, and the second connection unit is used to connect and separate the grouting head and the grouting pipe.

[0012] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, the isolation sleeve and the guide pipe are tightly fitted plug-in structures.

[0013] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, a temperature detection probe and a pressure sensing sheet are also provided on the lower sealing plate, a temperature probe wire and a sensing sheet wire are provided in the guide pipe, quick-connect plugs are provided at the lower ends of the temperature probe wire and the sensing sheet wire, and quick-connect sockets corresponding to the corresponding quick-connect plugs are provided on the temperature detection probe and the pressure sensing sheet.

[0014] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, the isolation sleeve, cleaning nozzle, grouting head, temperature detection probe and pressure sensing sheet are all disposable products.

[0015] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, both the first connecting unit and the second connecting unit include:

[0016] A first connecting sleeve, which is arranged at the inner end of the corresponding cleaning nozzle or grouting head; and

[0017] The second connecting sleeve is arranged at the end of the corresponding cleaning pipe or grouting pipe, and the first connecting sleeve is connected to the second connecting sleeve through a tight-fitting plug-in structure.

[0018] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, both the first connecting unit and the second connecting unit include:

[0019] A first clamping sleeve, the first clamping sleeve is arranged at the inner end of the corresponding cleaning nozzle or grouting head, and an annular clamping groove is arranged on the first clamping sleeve;

[0020] A second clamping sleeve, which is arranged at the end of the corresponding cleaning pipe or grouting pipe, the first clamping sleeve is matched and inserted in the second clamping sleeve, and at least two eccentric clamping blocks are hingedly arranged on the second clamping sleeve, and the eccentric clamping blocks correspond to the annular clamping groove; and

[0021] A buckle pull rope is connected to the eccentric clamping block, and the buckle pull rope drives the eccentric clamping block to rotate.

[0022] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, both the first connecting unit and the second connecting unit include:

[0023] A first clamping sleeve, the first clamping sleeve is arranged at the inner end of the corresponding cleaning nozzle or grouting head, and an annular clamping groove is arranged on the first clamping sleeve;

[0024] A second clamping sleeve is arranged at the end of the corresponding cleaning pipe or grouting pipe, a driving ring is also slidably arranged on the second clamping sleeve, a spring is arranged between the driving ring and the second clamping sleeve, the first clamping sleeve is matched and inserted in the second clamping sleeve, a plurality of balls are arranged between the second clamping sleeve and the driving ring, a circular hole corresponding to the balls is opened on the second clamping sleeve, and a conical surface corresponding to the balls is arranged on the driving ring; and

[0025] A buckle pull rope is connected to the driving ring, and the buckle pull rope drives the driving ring to slide relative to the second clamping sleeve to achieve tightening and loosening of the ball.

[0026] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, an anti-backflow unit is provided between the cleaning nozzle and the first connecting unit and between the grouting head and the second connecting unit.

[0027] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, it also includes a plurality of extension pipes, wherein the extension pipes are connected to the guide pipes by threads, and two adjacent extension pipes are also connected by threads.

[0028] According to the visualized polymer grouting device for plugging leakage channels of earth-rock dams of the present invention, preferably, the imaging device comprises a fixing seat arranged in the guide tube, a camera and an infrared lamp arranged in the fixing seat, and the camera and the infrared lamp are both arranged corresponding to the transparent portion.

[0029] The beneficial effects achieved by adopting the above technical solution are:

[0030] The present application can conduct real-time visual detection of the environment inside the soil through a preset borehole, which is convenient for accurate secondary positioning of the leakage channel; the configured temperature sensing probe and pressure sensing sheet can monitor the temperature and pressure changes in the polymer slurry reaction process in real time, and accurately grasp the changes in the grouting process at the leakage point. After the grouting is completed, the isolation sleeve is contaminated with semi-solidified polymer slurry or completely fixed in the solidified polymer. At this time, the cleaning nozzle and the cleaning pipe can be separated, and the grouting pipe and the grouting head can be separated through the first connection unit and the second connection unit. The temperature sensing probe and the pressure sensing sheet are connected to the corresponding wires by quick plug-in. At this time, pulling the corresponding wire can realize the separation of the quick plug-in structure, and then realize the recovery of the guide tube and its internal structural components, and leave the isolation sleeve and its upper structural parts as disposable structural parts inside the borehole.

[0031] The anti-backflow unit provided in the present application can prevent backflow when the polymer expands after grouting. A one-way valve can be arranged on the pipeline as an anti-backflow unit. Since the subsequent cleaning nozzle and the cleaning pipe, and the grouting head and the grouting pipe need to be separated, the one-way valve is also a disposable product, which is arranged on the cleaning nozzle and the grouting head.

[0032] The arrangement of the overall structure of the present application can facilitate construction operations, improve the accuracy and effectiveness of leakage location detection and construction, and enable maintenance and repair operations for anti-seepage and anti-leakage of earth-rock dams, which will contribute to the further application of polymer grouting technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention, wherein the drawings are only used to illustrate some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0034] Figure 1 The diagram is a top view of the structure of a visualized polymer grouting device for plugging leakage channels in earth-rock dams according to an embodiment of the present invention.

[0035] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0036] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the BB direction.

[0037] Figure 4 Schematic diagram of the top structure of the isolation sleeve according to an embodiment of the present invention.

[0038] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the CC direction.

[0039] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure along the DD direction.

[0040] Figure 7 FIG. 1 is a schematic diagram of the structure of a first connecting unit according to an embodiment of the present invention.

[0041] Figure 8 Schematic diagram of the connection structure between a temperature detection probe and a temperature probe wire according to an embodiment of the present invention.

[0042] Fig. 9 This is a second structural schematic diagram of the first connecting unit according to an embodiment of the present invention.

[0043] Serial number in the picture:

[0044] 100 is a guide tube;

[0045] 110 is a camera device, 111 is a fixing base, 112 is a camera, 113 is an infrared lamp, 120 is a cleaning pipe, 130 is a grouting pipe, 140 is a temperature probe wire, 141 is a quick-connect plug, and 150 is a sensor wire;

[0046] 200 is an isolation sleeve, 210 is a cleaning nozzle, 220 is a grouting head, 221 is a grouting hole, 230 is a temperature detection probe, 231 is a quick-connect socket, 232 is a temperature probe wire perforation, 240 is a pressure sensing sheet, and 241 is a sensing sheet wire perforation;

[0047] 301 is a first clamping sleeve, 302 is a second clamping sleeve, 303 is a buckle pull rope, 304 is an annular clamping groove, 305 is an eccentric clamping block, 306 is a ball, and 307 is a driving ring;

[0048] 400 is the backflow prevention unit. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings of specific embodiments of the present invention to clearly and completely describe the exemplary scheme of the embodiment of the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field.

[0050] In the description of the present invention, it should be understood that the expressions “first” and “second” are used to describe the various elements of the present invention and do not represent any limitation of order, quantity or importance, but are only used to distinguish one component from another.

[0051] It should be noted that when one element is “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationships of direct connection and indirect connection are covered.

[0052] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a quantitative limitation. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0053] It should be noted that terms such as "up", "down", "left" and "right" indicating orientation or positional relationship are only used to indicate relative positional relationship. This is for the convenience of describing the present invention and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0054] See also Figure 1-Figure 8 The present application discloses a visualized polymer grouting device for plugging leakage channels of earth-rock dams, comprising a guide pipe 100, a camera device 110 arranged in the guide pipe 100, a cleaning pipe 120 and a grouting pipe 130, and an isolation sleeve 200, wherein a lower sealing plate is arranged at the bottom of the isolation sleeve 200, the isolation sleeve 200 is matched and slidably sleeved at the lower part of the guide pipe 100, the lower sealing plate is provided with a transparent part corresponding to the camera device, and the lower sealing plate is also provided with a cleaning nozzle 210 and a grouting head 220. 0, the cleaning nozzle 210 is arranged corresponding to the transparent part. When the transparent part is covered with mud, the cleaning liquid is sprayed out by the cleaning nozzle to clean the transparent part. The cleaning nozzle 210 is connected with the cleaning pipe 120 through a first connecting unit, and the grouting head 220 is connected with the grouting pipe 130 through a second connecting unit; the first connecting unit is used to connect and separate the cleaning nozzle 210 and the cleaning pipe 120, and the second connecting unit is used to connect and separate the grouting head 220 and the grouting pipe 130.

[0055] The camera device in the present application includes a fixing seat 111 arranged in the guide tube, a camera 112 and an infrared lamp 113 arranged in the fixing seat, and the camera 112 and the infrared lamp 113 are both arranged corresponding to the transparent part. Preferably, the isolation sleeve 200 and the guide tube 100 in this embodiment are a tight-fitting plug-in structure. The tight-fitting plug-in structure in this embodiment refers to the sliding sleeve connection between the guide tube 100 and the isolation sleeve 200, and the friction between the fitting surfaces between the two is greater than the weight of the isolation sleeve 200, so that the isolation sleeve 200 will not fall off the guide tube 100. When the isolation sleeve 200 is bonded to the casting material, the guide tube 100 is lifted upward, and the guide tube 100 can be easily detached from the isolation sleeve 200. Similar to the common connection between mobile phones and data cables in existing equipment, the guide tube and the isolation sleeve can be relatively fixed after being plugged in mainly by means of interference fit. The isolation sleeve protects the instruments and equipment inside the guide tube to prevent the polymer from entering the guide tube or sticking to the guide tube during pouring.

[0056] The isolation sleeve and the lower sealing plate of the present application are made of the same material, and they can both be an integrated structure of transparent plastic material, so there is no need to perform separate processing and setting on the transparent part; other materials can also be selected according to the performance requirements of the isolation sleeve and the lower sealing plate. In this case, the transparent part is made of transparent glass or plastic, which is matched and embedded in the lower sealing plate of the isolation sleeve. A temperature detection probe 230 and a pressure sensing sheet 240 are also provided on the lower sealing plate of the present application, and a temperature probe wire 140 and a sensing sheet wire 150 are provided in the guide tube 100. The lower ends of the temperature probe wire 140 and the sensing sheet wire 150 are both provided with quick-connect plugs 141, and the temperature detection probe 230 and the pressure sensing sheet 240 are provided with quick-connect sockets 231 corresponding to the corresponding quick-connect plugs 141, such as a plug and socket connection or a plug-in connection of a data cable port.

[0057] In specific practical applications, the temperature sensing probe can be fixed on the outside of the isolation sleeve by glue, and its data is connected to the reading device through a wire, so as to monitor the real-time reaction temperature of the polymer slurry reaction process. The pressure sensing sheet can be attached to the outside of the isolation sleeve by glue, and its data is connected to the reading device through a wire, so as to monitor the real-time pressure of the polymer slurry reaction.

[0058] The isolation sleeve, cleaning nozzle, grouting head, temperature detection probe and pressure sensing sheet of the present application are all disposable products and will not be recycled. After the pouring is completed, they are left in the drill hole. On the one hand, they have a sealing effect, and on the other hand, they are also convenient for stabilizing the internal structure performance, improving the efficiency and convenience of construction, and are more conducive to the application of polymers in anti-seepage and anti-leakage.

[0059] The structure of the first connecting unit and the second connecting unit can adopt a variety of different forms. Form 1: The first connecting unit and the second connecting unit of the present application both include a first connecting sleeve and a second connecting sleeve. The first connecting sleeve is arranged at the inner end of the corresponding cleaning nozzle or grouting head; the second connecting sleeve is arranged at the end of the corresponding cleaning pipe or grouting pipe. The first connecting sleeve and the second connecting sleeve are connected by a tight-fitting plug-in structure, which also adopts a plug-in structure to facilitate the separation between the two after the grouting is completed. In order to avoid accidental separation of the two due to grouting pressure during the grouting process, the first connecting sleeve and the isolation sleeve can be supported and fixed by a support member, and the second connecting sleeve and the guide pipe can be supported and fixed by a support member. At this time, the first connecting sleeve and the second connecting sleeve form a plug-in of a hard structural member, and the stability is better after plugging in.

[0060] Form 2: The first connecting unit and the second connecting unit in this embodiment both include a first clamping sleeve 301, a second clamping sleeve 302 and a buckle pull rope 303, the first clamping sleeve 301 is arranged at the inner end of the corresponding cleaning nozzle 210 or the grouting head 220, and the first clamping sleeve 301 is provided with an annular clamping groove 304 with an arc-shaped cross-section; the second clamping sleeve 302 is arranged at the end of the corresponding cleaning pipe 120 or the grouting pipe 130, the first clamping sleeve 301 is matched and inserted in the second clamping sleeve 302, and at least two eccentric clamping blocks 305 are hingedly provided on the second clamping sleeve 302, and the eccentric clamping blocks 305 correspond to the annular clamping groove 304; the buckle pull rope 303 is connected to the eccentric clamping block 305, and the buckle pull rope 303 drives the eccentric clamping block 305 to rotate. Through the action of the eccentric clamping block and the annular clamping groove, the connection between the first clamping sleeve and the second clamping sleeve is achieved, ensuring the stable connection between the grouting pipe and the grouting head, and the cleaning pipe and the cleaning nozzle. At the same time, separation can be achieved through the buckle pull rope, which facilitates the repeated recovery of the guide pipe and internal structural parts and is more convenient to operate.

[0061] Form 3: You can also use a snap-on joint structure similar to that on a washing machine, such as Figure 7 As shown, its action mode is basically the same as that in form 2, and the only difference is that the eccentric block is replaced by a ball 306, and a driving ring 307 and a spring are further provided on the second clamping sleeve, and the inner wall surface of the driving ring corresponding to the ball is a conical structure, so that the ball can be tightened and loosened when the driving ring is in action, and the ball matches the annular groove to achieve structural clamping, and the driving ring 307 is driven by the spring to tighten the ball 306, and the ball is correspondingly engaged with the annular groove of the first clamping sleeve; when separation is required, the driving ring is pulled by the buckle pull rope to overcome the action of the spring, so that the ball is no longer subjected to the pressure of the driving ring, and then the ball is separated from the annular groove to achieve separation.

[0062] The structures of the first connecting unit and the second connecting unit may also adopt other structural forms in the prior art, such as electrically controlled quick connectors, and electromagnetic effects to achieve separation and engagement of corresponding snap-fit ​​structures.

[0063] In order to avoid backflow, the present application provides an anti-backflow unit 400 between the cleaning nozzle 210 and the first connecting unit, and between the grouting head 220 and the second connecting unit. The anti-backflow unit can be a one-way valve, which is connected to the corresponding grouting head and cleaning nozzle, and is retained in the drilled hole as a disposable product to avoid expansion and overflow of the polymer after grouting.

[0064] The present application also provides a plurality of extension tubes, which are connected to the guide tube by threads, and adjacent extension tubes are also connected by threads. The extension tube and the guide tube can be exactly the same, that is, both are hollow metal tubes, and can be of the same length and size, or they can be of different lengths. The adjacent two tubes are connected and extended by threads, which is more convenient for construction operations of drilling holes of different depths.

[0065] During the construction process, the environment inside the soil can be visually detected in real time through the preset drilling holes, which is convenient for accurate secondary positioning of the leakage channel; the configured temperature sensor probe and pressure sensor can monitor the temperature and pressure changes in the polymer slurry reaction process in real time, and accurately grasp the leakage treatment process; after the grouting is completed, the plastic shell is contaminated with semi-solidified polymer slurry or completely fixed in the solidified polymer. At this time, pull the wire of the grouting pipe connection buckle, and the grouting pipe and the buckle will fall off (first pass high-pressure gas into the grouting pipe to completely discharge the polymer slurry), and then pull the cleaning fluid conduit, and the cleaning fluid conduit and the top of the disposable backflow prevention device will fall off at the socket position. Pull the wires of the temperature sensor probe and the pressure sensor to make their wires fall off from the temperature sensor probe and the pressure sensor, so that the main equipment except disposable items can be reused.

[0066] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the role of these embodiments is only to exemplify, and is not intended to limit the scope, applicability or configuration of the present invention in any way. The protection scope of the present invention is defined by the attached claims and their equivalents. A person of ordinary skill in the art can make many changes to the above embodiments under the guidance of the present invention, and these changes all fall within the protection scope of the present invention.

Claims

1. A visual polymer grouting device for plugging leakage channels of earth-rock dams, characterized in that: include: Guide tube; Camera equipment, cleaning pipes and grouting pipes arranged in the guide pipe; as well as An isolation sleeve, wherein a lower sealing plate is provided at the bottom of the isolation sleeve, the isolation sleeve is matched with a sliding sleeve and is arranged at the lower part of the guide pipe, the lower sealing plate is provided with a transparent part corresponding to the camera device, and the lower sealing plate is also provided with a cleaning nozzle and a grouting head, the cleaning nozzle is arranged corresponding to the transparent part, the cleaning nozzle is connected to the cleaning pipe through a first connecting unit, and the grouting head is connected to the grouting pipe through a second connecting unit; The first connection unit is used to connect and separate the cleaning nozzle and the cleaning pipe, and the second connection unit is used to connect and separate the grouting head and the grouting pipe; The first connection unit and the second connection unit both include: A first connecting sleeve, which is arranged at the inner end of the corresponding cleaning nozzle or grouting head; and A second connecting sleeve, which is arranged at the end of the corresponding cleaning pipe or grouting pipe, and the first connecting sleeve is connected to the second connecting sleeve through a tight-fitting plug-in structure; Alternatively, the first connection unit and the second connection unit both include: A first clamping sleeve, the first clamping sleeve is arranged at the inner end of the corresponding cleaning nozzle or grouting head, and an annular clamping groove is arranged on the first clamping sleeve; A second clamping sleeve, which is arranged at the end of the corresponding cleaning pipe or grouting pipe, the first clamping sleeve is matched and inserted in the second clamping sleeve, and at least two eccentric clamping blocks are hingedly arranged on the second clamping sleeve, and the eccentric clamping blocks correspond to the annular clamping groove; and A buckle pull rope, which is connected to the eccentric clamping block, and the buckle pull rope drives the eccentric clamping block to rotate; Alternatively, the first connection unit and the second connection unit both include: A first clamping sleeve, the first clamping sleeve is arranged at the inner end of the corresponding cleaning nozzle or grouting head, and an annular clamping groove is arranged on the first clamping sleeve; A second clamping sleeve is arranged at the end of the corresponding cleaning pipe or grouting pipe, a driving ring is also slidably arranged on the second clamping sleeve, a spring is arranged between the driving ring and the second clamping sleeve, the first clamping sleeve is matched and inserted in the second clamping sleeve, a plurality of balls are arranged between the second clamping sleeve and the driving ring, a circular hole corresponding to the balls is opened on the second clamping sleeve, and a conical surface corresponding to the balls is arranged on the driving ring; and A buckle pull rope connected to the driving ring, the buckle pull rope drives the driving ring to slide relative to the second clamping sleeve to achieve tightening and loosening of the ball; An anti-backflow unit is provided between the cleaning nozzle and the first connecting unit, and between the grouting head and the second connecting unit.

2. The visualized polymer grouting device for blocking leakage channels of earth-rock dams according to claim 1 is characterized in that: The isolation sleeve and the guide tube are a tightly matched plug-in structure.

3. The visualized polymer grouting device for blocking leakage channels of earth-rock dams according to claim 1 is characterized in that: A temperature detection probe and a pressure sensing sheet are also provided on the lower sealing plate, a temperature probe wire and a sensing sheet wire are provided in the guide tube, quick-connect plugs are provided at the lower ends of the temperature probe wire and the sensing sheet wire, and quick-connect sockets corresponding to the corresponding quick-connect plugs are provided on the temperature detection probe and the pressure sensing sheet.

4. The visualized polymer grouting device for blocking leakage channels of earth-rock dams according to claim 3 is characterized in that: The isolation sleeve, cleaning nozzle, grouting head, temperature detection probe and pressure sensing sheet are all disposable products.

5. The visualized polymer grouting device for blocking leakage channels of earth-rock dams according to claim 1 is characterized in that: It also includes a plurality of extension tubes, wherein the extension tubes are connected to the guide tube via threads, and two adjacent extension tubes are also connected via threads.

6. The visualized polymer grouting device for blocking leakage channels of earth-rock dams according to claim 1 is characterized in that: The camera device comprises a fixing seat arranged in the guide tube, a camera and an infrared lamp arranged in the fixing seat, and the camera and the infrared lamp are both arranged corresponding to the transparent part.

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