CN111879472A

CN111879472A - Device for maintaining and detecting water seepage of dam cracks

Info

Publication number: CN111879472A
Application number: CN202010751457.1A
Authority: CN
Inventors: 郭超南
Original assignee: Ningbo Lutang Electronic Technology Co ltd
Current assignee: Ningbo Lutang Electronic Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2020-11-03

Abstract

The invention discloses a device for maintaining and detecting whether water seepage occurs in cracks of a dam, which comprises a shell, wherein two installation cavities with openings facing left are formed in the shell, a soft rod is fixedly installed on the right wall of each installation cavity, the left extension part of the soft rod extends out of the outside, sponge sleeves are fixedly installed on the peripheries of the soft rods, supporting blocks are fixedly installed on the upper side surface and the lower side surface of the shell, sliding sleeves are fixedly installed on the side surfaces, away from the shell, of the supporting blocks, sliding sleeves are fixedly installed on the side surfaces, away from the shell, sliding columns are arranged in the sliding sleeves in a left-right sliding mode, fixing mechanisms capable of being used for reinforcing fixing are arranged on the upper side surface and the lower side surface of the shell, each fixing mechanism comprises a sucking disc fixedly installed on the left side surface of each sliding column, the shell can be fixedly installed on the wall surface of.

Description

Device for maintaining and detecting water seepage of dam cracks

Technical Field

The invention relates to the technical field related to civil engineering, in particular to a device for maintaining and detecting whether water seepage occurs in dam cracks.

Background

The civil engineering includes surveying, building and maintaining engineering, wherein the maintaining engineering includes detecting items, such as dam maintaining engineering, the dam is required to be frequently detected in cracks, the dam is prevented from being infiltrated in the cracks, so that the dam wall is damaged, some small cracks are not known whether water is infiltrated inside, whether a waterproof material is required to be added in advance is not known in the plugging process, a general device is difficult to enter for detection, personnel are difficult to observe the internal condition, if the water in the cracks is infiltrated outside, the best maintenance time is missed, meanwhile, the concrete wall of the dam is difficult to install a fixing device on the premise of not damaging the wall, and therefore, in order to detect the internal condition of the cracks, a maintenance detecting device capable of solving the problems is necessary to be designed.

Disclosure of Invention

The invention aims to provide a device for maintaining and detecting whether cracks of a dam are permeable, which is used for overcoming the defects in the prior art.

The device for maintaining and detecting whether water seepage occurs to cracks of the dam comprises a shell, wherein two installation cavities with openings facing to the left are formed in the shell, a soft rod is fixedly installed on the right wall of each installation cavity, the left extending part of the soft rod extends out of the outside, sponge sleeves are fixedly arranged on the periphery of the soft rod, supporting blocks are fixedly arranged on the upper side surface and the lower side surface of the shell, sliding sleeves are fixedly arranged on the side surfaces, away from the shell, of the supporting blocks, sliding sleeves are fixedly arranged in the sliding sleeves, sliding columns are arranged in the sliding sleeves in a left-right sliding mode, fixing mechanisms capable of being used for reinforcing and fixing are arranged on the upper side surface and the lower side surface of the shell, each fixing mechanism comprises a sucking disc fixedly installed on the left side surface of the corresponding sliding column, a vacuum cavity with an opening facing to the left is formed in the corresponding sucking disc, a jacking column with an opening facing to the left is arranged in, a supporting disk is fixedly arranged on the left side surface of the sliding sleeve, an adhesive layer is fixedly arranged on the left side surface of the supporting disk, an air cavity is formed in the sliding column and is communicated with the vacuum cavity, an air valve is communicated and installed on the right side of the air cavity and can be communicated with the outside, a closed sliding block is arranged on the sliding column in a left-right sliding mode far away from the side surface of the shell, a top column is fixedly arranged on the left side surface of the sliding sleeve, a fixed body is fixedly arranged on the periphery of the sliding column, a sliding cavity with an opening facing the sliding column is formed in the shell, the fixed body is close to the side surface of the shell and is in sliding connection with the inner wall of the sliding cavity, a detection mechanism capable of giving out a warning effect through water absorption and guiding of the sponge sleeve is arranged in the shell, the detection mechanism comprises an induction cavity arranged in the shell, an adsorption sponge is fixedly arranged on the left, the sensing cavity is fixedly connected with the adsorption sponge, a lifting block is arranged on the right wall of the sensing cavity in an up-and-down sliding mode, a gravity sponge is fixedly arranged on the left side face of the lifting block and is in contact with the adsorption sponge, a screw cavity is formed in the right side of the sensing cavity, a launching cavity with a right opening is formed in the right side of the screw cavity in a communicating mode, a launching block is arranged on the inner wall of the launching cavity in a left-and-right sliding mode, the left extending portion of the launching block extends into the screw cavity, two vertically symmetrical moving blocks are arranged on the left wall of the screw cavity in a sliding mode, a bolt is fixedly arranged on the side face, close to each other, of the two moving blocks, two vertically symmetrical pin holes with openings facing the moving blocks are formed in the launching block, the bolt can be inserted into the pin holes, and.

According to a further technical scheme, a closed spring is fixedly installed between the left side face of the closed sliding block and the right side face of the fixed body, a through hole is formed in the closed sliding block and can be communicated with the air valve, a limiting cavity with an opening facing the sliding cavity is formed in the fixed body, a control cavity is formed in the sliding cavity and is communicated with the side close to the induction cavity, a limiting sliding block is arranged in the control cavity in a sliding mode, a rotating shaft is arranged on the front side face of the limiting sliding block in a rotating mode, a reset disc is fixedly arranged on the front side face of the rotating shaft, a limiting insertion block is fixedly arranged on the periphery of the reset disc and can be inserted into the limiting cavity, a torsion spring is fixedly installed between the rear side face of the reset disc and the front side face of the limiting sliding block, a limiting spring is fixedly installed between the side face of the limiting sliding cavity far away from the limiting sliding cavity and the inner wall of, and a manual rod is arranged on the inner wall of the moving cavity in a sliding manner, the rightward extending part of the manual rod extends out of the outside, and the leftward extending part of the manual rod extends into the control cavity and is fixedly connected with the limiting sliding block.

In a further technical scheme, a fixed screw is fixedly arranged on the top surface of the lifting block, a reset spring is fixedly arranged between the top surface of the lifting block and the top wall of the induction cavity, a pulley cavity is formed in the upper side of the induction cavity, a threaded sleeve is rotatably arranged between the upper wall and the lower wall of the pulley cavity, the upward extending part of the fixed screw penetrates through the threaded sleeve and is in threaded connection with the threaded sleeve, vertical screws are rotatably arranged on the upper wall and the lower wall of the screw cavity, the two vertical screws are fixedly connected with each other, the threads of the upper vertical screw and the lower vertical screw are opposite, the two vertical screws respectively penetrate through the two moving blocks, the vertical screws are in threaded connection with the inner wall of the moving block, the upward extending part of the vertical screw positioned on the upper side extends into the pulley cavity, and belt pulleys are fixedly arranged on the peripheries of the vertical screw positioned in the pulley cavity, a belt is arranged between the two belt wheels in a transmission connection way.

Further technical scheme, launch the chamber about both sides all communicate and seted up the rectangular cavity, it is equipped with the power piece to slide on the inner wall in rectangular cavity, the power piece with launch piece fixed connection, the right flank of power piece with fixed mounting has power spring between the right wall in rectangular cavity.

Further technical scheme, the storage chamber has been seted up to the downside intercommunication in response chamber, store the chamber and install the drain valve with external intercommunication right.

The invention has the beneficial effects that: the invention can fix the shell on the wall surface of the dam by the combined action of two modes of adhesive layer sticking and sucking disc adsorption, strengthen the stabilization effect, prevent the shell from dropping midway, simultaneously enable the inner space of the sucking disc to achieve the vacuum effect all the time, prevent air from entering, in addition, can be inserted into the crack gap of the dam by the soft rod, when the water seepage is detected, the water can be guided to permeate into the gravity sponge by the sponge outer sleeve, and then the warning board can be controlled to be ejected rightwards through gravity transmission, thereby achieving the warning effect.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present invention;

FIG. 2 is a top view of the closure slider 11 of the present invention;

FIG. 3 is an enlarged schematic view at A of FIG. 1 of the present invention;

FIG. 4 is an enlarged schematic view of the invention at B of FIG. 1;

FIG. 5 is a partial cross-sectional view taken in the direction D-D of FIG. 4 in accordance with the present invention;

fig. 6 is an enlarged schematic view at C of fig. 1 of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1 to 6, a device for maintenance and detection of water seepage of cracks of a dam according to an embodiment of the present invention includes a housing 40, two installation cavities 37 with openings facing left are formed in the housing 40, a soft rod 38 is fixedly installed on a right wall of the installation cavity 37, a left extension portion of the soft rod 38 extends out of the outside, a sponge sleeve 39 is fixedly installed on an outer circumference of the soft rod 38, supporting blocks 21 are fixedly installed on upper and lower sides of the housing 40, a sliding sleeve 20 is fixedly installed on a side of the supporting block 21 away from the housing 40, a sliding column 15 is slidably installed in the sliding sleeve 20 from left to right, fixing mechanisms 101 capable of being used for reinforcing and fixing are installed on upper and lower sides of the housing 40, each fixing mechanism 101 includes a suction cup 42 fixedly installed on a left side of the sliding column 15, a vacuum cavity 48 with an opening facing left is formed in the suction cup 42, an elastic cavity 43 with an opening facing left is formed in the, a top pressure column 45 is arranged in the elastic cavity 43 in a sliding manner, a left extending part of the top pressure column 45 extends into the vacuum cavity 48, a supporting disc 46 is fixedly arranged on the left side of the top pressure column, an adhesive layer 47 is fixedly arranged on the left side of the supporting disc 46, an air cavity 14 is arranged in the sliding column 15, the air cavity 14 is communicated with the vacuum cavity 48, an air valve 18 is arranged on the right side of the air cavity 14 in a communicating manner, the air valve 18 can be communicated with the outside, a closed sliding block 11 is arranged on the side surface of the sliding column 15 far away from the shell 40 in a sliding manner, a top column 19 is fixedly arranged on the left side surface of the sliding sleeve 20, a fixing body 13 is fixedly arranged on the periphery of the sliding column 15, a sliding cavity 17 with an opening towards the sliding column 15 is arranged in the shell 40, the fixing body 13 is connected with the inner wall of the sliding cavity 17 close to the side surface of the, the detection mechanism 102 for giving out a warning effect comprises an induction cavity 30 arranged in the housing 40, an adsorption sponge 32 is fixedly arranged on the left wall of the induction cavity 30, the rightward extending part of the sponge sleeve 39 extends into the induction cavity 30 and is fixedly connected with the adsorption sponge 32, a lifting block 31 is arranged on the right wall of the induction cavity 30 in an up-and-down sliding manner, a gravity sponge 33 is fixedly arranged on the left side surface of the lifting block 31, the gravity sponge 33 is in contact with the adsorption sponge 32, a screw cavity 60 is arranged on the right side of the induction cavity 30, an ejection cavity 61 with a rightward opening is communicated with the right side of the screw cavity 60, an ejection block 59 is arranged on the inner wall of the ejection cavity 61 in a left-and-right sliding manner, the leftward extending part of the ejection block 59 extends into the screw cavity 60, two vertically symmetrical moving blocks 56 are arranged on the left wall of the screw cavity 60 in a sliding manner, the two moving blocks 56 are fixedly provided with bolts 57 on the side surfaces close to each other, two pin holes 58 which are symmetrical up and down and have openings facing the moving blocks 56 are formed in the ejection block 59, the bolts 57 can be inserted into the pin holes 58, and the right side surface of the ejection block 59 is fixedly provided with a warning board 62.

In addition, in one embodiment, a sealing spring 12 is fixedly installed between the left side surface of the sealing slider 11 and the right side surface of the fixed body 13, a through hole 41 is formed in the sealing slider 11, the through hole 41 can be communicated with the air valve 18, a limiting cavity 16 with an opening facing the sliding cavity 17 is formed in the fixed body 13, a control cavity 50 is formed in the sliding cavity 17 and communicated with the side close to the sensing cavity 30, a limiting slider 49 is slidably installed in the control cavity 50, a rotating shaft 52 is rotatably installed on the front side surface of the limiting slider 49, a reset plate 53 is fixedly installed on the front side surface of the rotating shaft 52, a limiting insertion block 51 is fixedly installed on the periphery of the reset plate 53, the limiting insertion block 51 can be inserted into the limiting cavity 16, a torsion spring 55 is fixedly installed between the rear side surface of the reset plate 53 and the front side surface of the limiting slider 49, a limiting spring 54 is fixedly installed between the side surface of the limiting slider 49 far from the sliding cavity 17 and the, the right side of the control cavity 50 is provided with a moving cavity 23 with a right opening, the inner wall of the moving cavity 23 is provided with a manual rod 22 in a sliding manner, the rightward extending part of the manual rod 22 extends out of the outside, the leftward extending part of the manual rod 22 extends into the control cavity 50 and is fixedly connected with the limiting slide block 49, when a dam wall needs to be detected, the adhesive layer 47 and the dam wall can be adhered together only by tightly attaching the suction cup 42 to the wall, at the moment, the shell 40 is pressed leftward, the shell 40 can drive the sliding sleeve 20 to slide leftward, so that the top pillar 19 can push the sealing slide block 11 leftward, at the moment, the air valve 18 can be communicated with the through hole 41, the vacuum cavity 48 can be exhausted to the outside, and when the shell 40 is continuously pushed leftward, the sealing slide block 11 can close the air valve 18 again, the vacuum chamber 48 can be kept in a vacuum state, so that the suction effect of the suction cup 42 can be enhanced, meanwhile, when the housing 40 moves leftwards, the fixing body 13 moves rightwards relative to the housing 40, the limiting insertion block 51 can be inserted into the limiting chamber 16, so that the housing 40 can be limited to a left position, at this time, the sliding sleeve 20 can be prevented from moving to drive the closing slider 11, so that air can be kept from entering the vacuum chamber 48, when the housing 40 needs to be disassembled, the limiting insertion block 51 can be separated from the limiting chamber 16 by manually pulling the manual rod 22, so that the housing 40 can be reset, so that air can enter the vacuum chamber 48, and then the housing can be easily disassembled.

In addition, in one embodiment, a fixed screw 34 is fixedly arranged on the top surface of the lifting block 31, a return spring 35 is fixedly arranged between the top surface of the lifting block 31 and the top wall of the induction cavity 30, a pulley cavity 24 is formed on the upper side of the induction cavity 30, a threaded sleeve 36 is rotatably arranged between the upper wall and the lower wall of the pulley cavity 24, an upward extending portion of the fixed screw 34 penetrates through the threaded sleeve 36 and is in threaded connection with the threaded sleeve 36, vertical screws 27 are rotatably arranged on the upper wall and the lower wall of the screw cavity 60, the two vertical screws 27 are fixedly connected, the threads of the upper vertical screw 27 and the lower vertical screw 27 are opposite, the two vertical screws 27 respectively penetrate through the two moving blocks 56, the vertical screws 27 are in threaded connection with the inner wall of the moving blocks 56, the upward extending portion of the vertical screw 27 located on the upper side extends into the pulley cavity 24, belt pulleys 26 are fixedly arranged on the peripheries of the vertical screw 27 located in the pulley cavity 24 and the threaded sleeve 36, the belt 25 is arranged between the two belt wheels 26 in a transmission connection mode, when detection is needed, the soft rod 38 and the sponge sleeve 39 are inserted into a crack of a dam, when water seeps into the crack, the water can permeate into the gravity sponge 33 through the sponge sleeve 39 and the adsorption sponge 32, so that the weight of the gravity sponge 33 is increased, the gravity sponge 33 can drive the lifting block 31 to move downwards, the fixing screw 34 can move downwards, the screw sleeve 36 can drive the vertical screw 27 to rotate forwards through the belt 25, when the vertical screw 27 rotates forwards, the two moving blocks 56 can move towards the sides far away from each other, and the bolt 57 can leave the pin hole 58.

In addition, in an embodiment, ejection chamber 61 both sides all communicate about and have seted up rectangular cavity 63, the sliding power piece 65 that is equipped with on the inner wall of rectangular cavity 63, power piece 65 with ejection piece 59 fixed connection, the right flank of power piece 65 with fixed mounting has power spring 64 between the right wall of rectangular cavity 63, works as bolt 57 leaves when pinhole 58, through power spring 64's elastic reaction, can make power piece 65 drives ejection piece 59 is ejected to the right side, and then can make warning sign 62 is ejected the external world to the right side, reaches warning effect then.

In addition, in one embodiment, a storage chamber 28 is communicated with the lower side of the sensing chamber 30, a drain valve 29 is arranged at the right side of the storage chamber 28 and communicated with the outside, excess water can be stored through the storage chamber 28, and water can be drained through the drain valve 29.

In an initial state, the drain valve 29 is in a closed state, the gravity sponge 33 is in a rising state, the gravity sponge 33, the adsorption sponge 32 and the sponge sleeve 39 are in a dry state, the bolt 57 is inserted into the pin hole 58, the limiting insertion block 51 is not inserted into the limiting cavity 16, the air valve 18 is closed by the closed sliding block 11, and the top column 19 is not in contact with the closed sliding block 11.

When the device is used, when the dam wall needs to be detected, the adhesive layer 47 can be adhered to the dam wall only by tightly attaching the suction cup 42 to the wall, at this time, the shell 40 is pressed leftwards, the shell 40 drives the sliding sleeve 20 to slide leftwards, so that the ejection column 19 ejects the closed slide block 11 leftwards, at this time, the air valve 18 can be communicated with the through hole 41, so that the vacuum cavity 48 can exhaust outwards, when the shell 40 is continuously pushed leftwards, the closed slide block 11 can close the air valve 18 again, so that the vacuum cavity 48 can be in a vacuum state, the adsorption effect of the suction cup 42 can be enhanced, at the same time, when the shell 40 moves leftwards, the fixing body 13 moves rightwards relative to the shell 40, the limiting insert block 51 can be inserted into the limiting cavity 16, so that the shell 40 can be limited to the left side, at this time, the movement of the sliding sleeve 20 can be prevented from driving the closed slide block 11 to move, so that air does not enter the vacuum, when the shell 40 needs to be disassembled, the manual rod 22 is manually pulled, the limiting insertion block 51 can be separated from the limiting cavity 16, the shell 40 can be reset, air can enter the vacuum cavity 48, and then the shell can be easily taken down, when detection is needed, the soft rod 38 and the sponge sleeve 39 are inserted into the cracks of the dam, when water seeps into the cracks, the water can permeate into the gravity sponge 33 through the sponge sleeve 39 and the adsorption sponge 32, so that the weight of the gravity sponge 33 can be increased, the gravity sponge 33 can drive the lifting block 31 to move downwards, the fixed screw 34 can move downwards, the screw sleeve 36 can drive the vertical screw 27 to rotate forwards through the belt 25, when the vertical screw 27 rotates forwards, the two moving blocks 56 can move towards the mutually-away sides, the bolt 57 can be separated from the pin hole 58, when the bolt 57 is separated from the pin hole 58, through the elastic action of the power spring 64, the power block 65 can drive the ejection block 59 to eject rightwards, so that the warning board 62 can eject rightwards to the outside, the warning effect is achieved, redundant water can be stored through the storage cavity 28, and water can be discharged through the water discharge valve 29.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. The utility model provides a device for maintaining whether detect dykes and dams crack infiltration, includes the casing, its characterized in that: two installation cavities with openings facing left are formed in the shell, a soft rod is fixedly installed on the right wall of the installation cavity, the left extending part of the soft rod extends out of the outside, a sponge sleeve is fixedly arranged on the periphery of the soft rod, supporting blocks are fixedly arranged on the upper side and the lower side of the shell, a sliding sleeve is fixedly arranged on the side, away from the shell, of each supporting block, a sliding column is arranged in the sliding sleeve in a left-right sliding mode, fixing mechanisms capable of being used for reinforcing fixing are arranged on the upper side and the lower side of the shell, each fixing mechanism comprises a sucking disc fixedly installed on the left side of the corresponding sliding column, a vacuum cavity with an opening facing left is formed in each sucking disc, an elastic cavity with an opening facing left is formed in each sliding column, a jacking column is arranged in the elastic cavity in a sliding mode, the left extending part of each jacking column extends into the vacuum cavity, a supporting disc is fixedly, an air cavity is formed in the sliding column and is communicated with the vacuum cavity, an air valve is arranged on the right side of the air cavity in a communicating manner and can be communicated with the outside, a closed sliding block is arranged on the sliding column in a left-right sliding manner and is far away from the side face of the shell, a top column is fixedly arranged on the left side face of the sliding sleeve, a fixing body is fixedly arranged on the periphery of the sliding column, a sliding cavity with an opening facing the sliding column is formed in the shell, and the fixing body is connected with the inner wall of the sliding cavity in a sliding manner close to the side face of the shell; a detection mechanism capable of giving out a warning effect through water absorption and guidance of the sponge sleeve is arranged in the shell, the detection mechanism comprises an induction cavity arranged in the shell, an adsorption sponge is fixedly arranged on the left wall of the induction cavity, the rightwards extending part of the sponge sleeve extends into the induction cavity and is fixedly connected with the adsorption sponge, a lifting block is arranged on the right wall of the induction cavity in an up-and-down sliding manner, a gravity sponge is fixedly arranged on the left side surface of the lifting block and is in contact with the adsorption sponge, a screw cavity is arranged on the right side of the induction cavity, a right-opening ejection cavity is communicated with the right side of the screw cavity, an ejection block is arranged on the inner wall of the ejection cavity in a left-and-right sliding manner, the leftwards extending part of the ejection block extends into the screw cavity, two vertically symmetrical moving blocks are arranged on the left wall of the screw cavity in a sliding manner, and a bolt is fixedly arranged on the side surfaces of the, two pin holes which are symmetrical up and down and have openings facing the moving block are formed in the ejection block, the bolt can be inserted into the pin holes, and a warning board is fixedly mounted on the right side face of the ejection block.

2. The apparatus for maintenance inspection of dam cracks for water seepage according to claim 1, wherein: a closed spring is fixedly installed between the left side surface of the closed sliding block and the right side surface of the fixed body, a through hole is formed in the closed sliding block and can be communicated with the air valve, a limiting cavity with an opening facing the sliding cavity is formed in the fixed body, the sliding cavity is communicated with a control cavity close to the sensing cavity, a limiting sliding block is arranged in the control cavity in a sliding mode, a rotating shaft is arranged on the front side surface of the limiting sliding block in a rotating mode, a reset disc is fixedly arranged on the front side surface of the rotating shaft, a limiting insertion block is fixedly arranged on the periphery of the reset disc and can be inserted into the limiting cavity, a torsion spring is fixedly installed between the rear side surface of the reset disc and the front side surface of the limiting sliding block, a limiting spring is fixedly installed between the side surface of the limiting sliding block, far away from the sliding cavity, and the inner wall of the control cavity, and a, and a manual rod is arranged on the inner wall of the moving cavity in a sliding manner, the rightward extending part of the manual rod extends out of the outside, and the leftward extending part of the manual rod extends into the control cavity and is fixedly connected with the limiting sliding block.

3. The apparatus for maintenance inspection of dam cracks for water seepage according to claim 2, wherein: a fixed screw is fixedly arranged on the top surface of the lifting block, a return spring is fixedly arranged between the top surface of the lifting block and the top wall of the induction cavity, a belt wheel cavity is arranged at the upper side of the induction cavity, a threaded sleeve is rotatably arranged between the upper wall and the lower wall of the belt wheel cavity, the upward extending part of the fixed screw rod penetrates through the threaded sleeve, and is connected with the threaded sleeve by screw threads, the upper wall and the lower wall of the screw cavity are both rotatably provided with vertical screw rods, the two vertical screw rods are fixedly connected, the threads of the upper vertical screw rod and the lower vertical screw rod are opposite, the two vertical screw rods respectively penetrate through the two moving blocks, the vertical screw rod is in threaded connection with the inner wall of the moving block, the upward extending part of the vertical screw rod located on the upper side extends into the belt wheel cavity, belt wheels are fixedly arranged on the peripheries of the vertical screw rod and the threaded sleeve located in the belt wheel cavity, and a belt is arranged between the two belt wheels in a transmission connection mode.

4. The apparatus for maintenance inspection of dam cracks for water seepage according to claim 3, wherein: the ejection device is characterized in that rectangular cavities are formed in the upper side and the lower side of the ejection cavity in a communicated mode, a power block is arranged on the inner wall of each rectangular cavity in a sliding mode and fixedly connected with the ejection block, and a power spring is fixedly installed between the right side face of the power block and the right wall of each rectangular cavity.

5. The apparatus for maintenance inspection of dam cracks for water seepage according to claim 4, wherein: the downside intercommunication in response chamber has seted up the storage chamber, store the chamber and install the drain valve with external intercommunication right.