CN215715671U - Assembly type dredger pipeline conveying, air-entrapping, pressurizing and row spacing increasing device - Google Patents

Abstract

The utility model discloses an assembly type dredger pipeline transportation air-entrapping and pressurizing row spacing increasing device, which comprises: conveyer pipe, flotation device and pressure device, the one end and the dredger hull connection of conveyer pipe, flotation device and duct connections for float the conveyer pipe on the surface of water, and present certain slope and make the transport more smooth and easy, the row spacing is farther, pressure device is connected with flotation device, be used for pressurizeing in order to increase the row spacing to the conveyer pipe, can make the quick installation of flotation device and accomodate simultaneously, this assembled dredger pipeline transport air entrainment pressure boost increases the row spacing device, pressure is less when having solved current assembled dredger pipeline transport, leads to being difficult to transport overlength distance, and implements with high costs, the big problem of safe risk, the device installation is simple, the simple operation, the cost is lower, be convenient for install and accomodate, can be stable increase the row spacing for conveyer pipe pressurization, improved work efficiency, make things convenient for people to use.

Description

Assembly type dredger pipeline conveying, air-entrapping, pressurizing and row spacing increasing device

Technical Field

The utility model relates to the technical field of pipeline transportation of an assembled dredger, in particular to an air-entrapping and pressurizing row spacing increasing device for pipeline transportation of the assembled dredger.

Background

The dredger is used for dredging water channels and river silt so that other ships can smoothly pass through the dredger. Or a sharp tool for blowing sand to fill the sea. There are cutter suction dredger, trailing suction dredger, etc. The smooth river channel is totally expected to the dredger.

The domestic research in the pipeline conveying field is developed rapidly in recent years, but due to late starting, the application of related theories and technologies is not mature enough. Research results are mainly focused on the later stage of the 90 s in the 20 th century, the research make internal disorder or usurp on the industrial field of two-phase flow in the forms of gas-liquid, gas-solid and solid-liquid is more, the research make internal disorder or usurp on solid-liquid-gas three-phase flow conveying is less, and the research on the field of dredging engineering is mainly limited to the traditional solid-liquid two-phase flow conveying. For the research on air-entrapping boosting slurry delivery, only a scholars of Wuhan theory university researches the feasibility of air-entrapping boosting, and a resistance calculation model of three-phase flow in a pipeline is established; since 2010, the original air-entrapping transportation test platform is optimized and transformed by the panding, the effects of different air-entrapping devices and the air-entrapping transportation drag reduction effect are evaluated, and a theoretical basis and a test basis are provided for the pipeline air-entrapping transportation technology.

At present, the dredging industry expands the business to the environment-friendly dredging field of river, lake and reservoir, aiming at the problem that the row spacing of a small-sized assembly type cutter suction dredger in more environment-friendly dredging projects of river, lake and reservoir is difficult to meet the requirement, and the traditional dredging field mainly adopts a relay pump station to increase the row spacing. However, the relay pump station is difficult to install and maintain, high in implementation cost and high in safety risk, and secondary pollution is caused to a stagnant flood area due to the problems of oil leakage of equipment and the like. Therefore, the device for increasing the row spacing by aerating and pressurizing is put forward in a pipeline conveying way of the fabricated dredger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an assembly type dredger pipeline conveying gas-filling and pressurizing row spacing increasing device which is convenient for increasing row spacing and is convenient to mount and dismount, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: assembly type dredge pipeline transport adds air entrainment pressure boost and increases row spacing device, its characterized in that includes: one end of the conveying pipe is connected with the dredger body; the floating device is connected with the conveying pipe, is used for floating the conveying pipe on the water surface, presents a certain gradient to ensure that the conveying is smoother, and has a longer row distance; the pressurizing device is connected with the floating device and used for pressurizing the conveying pipe to increase the row spacing, meanwhile, the floating device can be rapidly installed and stored, the device is simple to install, convenient to operate, low in cost and convenient to install and store, the row spacing can be increased by pressurizing the conveying pipe stably, the working efficiency is improved, and people can use the device conveniently.

Preferably, the flotation device includes the gas tube, a plurality of floats of the outer wall fixedly connected with of conveyer pipe, it is a plurality of the radius size of floating the flotation pontoon is steadilyd decrease along the conveyer pipe, and is a plurality of the equal fixedly connected with in both sides of floating the flotation pontoon is rather than the spacing flotation block that prevents the conveyer pipe pivoted that is linked together, the gas tube runs through and communicates all floats the flotation pontoon, the gas tube is connected with pressure device, be equipped with the loading system who is convenient for pressurize the conveyer pipe and transport in the float flotation pontoon, be convenient for make the conveyer pipe present certain inclination and carry, reach the purpose that increases the array pitch.

Preferably, the pressurization mechanism is including seting up a plurality of pressurized tank on floating pontoon and conveyer pipe, and is a plurality of the pressurized tank is the incline direction, is convenient for promote inside muddy water and transports, be equipped with the one-way pressurization exhaust of being convenient for in the pressurized tank and prevent the air inlet and exhaust device against the current of gas, be convenient for carry out the air entrainment pressurization to the muddy water in the conveyer pipe, increase the array pitch.

Preferably, the pressurizing device comprises a machine body, the bottom of the machine body is fixedly connected with a base, the base is in threaded connection with a plurality of nuts for being in threaded connection with a dredger body, a device cavity is formed in the machine body, a motor is fixedly connected in the device cavity, an output end of the motor is fixedly connected with a driving disc, a rotating shaft is fixedly connected to the top surface of the driving disc, a pushing rod is rotatably connected to the rotating shaft, a pressurizing cavity is formed in the machine body, a pressurizing block is slidably connected in the pressurizing cavity, a groove is formed in the side surface of the pressurizing block, one end, far away from the rotating shaft, of the pushing rod is rotatably connected with the groove, a switching device is arranged on the machine body and used for rapidly switching the pressurizing direction of the device cavity, so that the pressurizing direction of the inflating tube can be conveniently pressurized or the inflating tube can be pumped out, and the floating device can be conveniently started and disassembled, the floating cylinder is convenient to pressurize and pump, thereby facilitating the use and the disassembly of the device.

Preferably, the switching device includes the rotation groove of seting up on the organism, it is connected with the carousel to rotate the inslot internal rotation, set up the intercommunication chamber that is linked together with the pressurization chamber on the carousel, communicating pipe has all been seted up to the both sides in intercommunication chamber, two blast pipes that are linked together with communicating pipe, arbitrary one are seted up to the side of organism the one end fixed connection of blast pipe and gas tube, and rather than being linked together, the side fixedly connected with handle of carousel, be equipped with on the organism and be convenient for carry out spacing stop device, two to the carousel all set up air inlet and outlet means in the intercommunication pipe, the pressurization direction in the quick switching device chamber of being convenient for is convenient for pressurize the gas tube or is bled the gas tube to the start-up and the dismouting of the flotation device of being convenient for.

Preferably, the limiting device comprises an insertion block penetrating through the top surface of the machine body and connected with the machine body in a sliding mode, two insertion slots symmetrically distributed along the circle center of the rotary table are formed in the rotary table, the insertion block is inserted into any one insertion slot, a handle is fixedly connected to the top end of the insertion block, and a first spring fixedly connected with the machine body is fixedly connected to the bottom surface of the handle, so that the rotary table is limited conveniently, and the position of the rotary table is stable and does not deviate when the rotary table works.

Preferably, the air inlet and exhaust device includes the fixed pipe with the inner wall fixed connection of communicating pipe or pressure tank, first through-hole has been seted up in the fixed intraductal, sliding connection has the slip pipe in the first through-hole, be equipped with the annular chamber between slip pipe and the fixed pipe, the side fixedly connected with of slip pipe and fixed pipe fixed connection's second spring, the bell mouth has been seted up to the one end of slip pipe, set up the second through-hole that is linked together with the bell mouth on the slip pipe, the side opening that communicates with the second through-hole is seted up to the side of slip pipe, a plurality of third through-holes that are linked together with the side opening have been seted up on the fixed pipe, set up the fourth through-hole that is linked together with the annular chamber on the fixed pipe, be convenient for realize gaseous one-way flow, prevent gas and muddy water against the current.

Preferably, the handle is provided with a direction indicator which is convenient for indicating the direction of the airflow, so that the direction of the airflow is convenient to indicate, and people can conveniently judge whether the handle is in a pressurizing state or an exhausting state.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model solves the problems that the pipeline conveying of the existing assembly type dredger is difficult to transport for overlong distance due to small pressure, high in implementation cost and large in safety risk, the floating device is arranged, the conveying pipe is convenient to float on the water surface, the conveying is smoother due to a certain gradient, the row spacing is farther, the pressurizing device is arranged, the conveying pipe is convenient to pressurize to increase the row spacing, meanwhile, the floating device can be quickly installed and stored, the device is simple to install, convenient to operate, low in cost and convenient to install and store, the row spacing can be stably increased by pressurizing the conveying pipe, the working efficiency is improved, and the assembly type dredger is convenient for people to use.

Drawings

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

FIG. 2 is a schematic view of the floating device of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a cross-sectional view of the overall construction of the present invention;

FIG. 5 is an enlarged view of area B of FIG. 4;

FIG. 6 is an enlarged view of area C of FIG. 4;

FIG. 7 is an enlarged view of area D of FIG. 4;

FIG. 8 is a cross-sectional view of an intake and exhaust apparatus according to the present invention;

fig. 9 is an enlarged view of region E in fig. 8.

In the figure: 1-a conveying pipe; 2-a floatation device; 3-a pressurizing device; 4-a gas-filled tube; 5-floating a buoy; 6-limiting floating block; 7-a pressurizing mechanism; 8-a pressure tank; 9-air inlet and outlet devices; 10-body; 11-a base; 12-a nut; 13-a device cavity; 14-a motor; 15-a drive disc; 16-a rotating shaft; 17-a push rod; 18-a pressurized chamber; 19-pressing the block; 20-grooves; 21-a switching device; 22-a rotation slot; 23-a turntable; 24-a communicating chamber; 25-communicating tube; 26-an exhaust pipe; 27-a handle; 28-a stop device; 29-an insert block; 30-slot; 31-a handle; 32-a first spring; 33-a stationary tube; 34-a first via; 35-a sliding tube; 36-a ring cavity; 37-a second spring; 38-a tapered hole; 39-second via; 40-side holes; 41-third through hole; 42-a fourth via; 43-beacon.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: assembly type dredge pipeline transport adds air entrainment pressure boost and increases row spacing device includes: conveyer pipe 1, flotation device 2 and pressure device 3, the one end and the dredger hull connection of conveyer pipe 1, flotation device 2 is connected with conveyer pipe 1 for float conveyer pipe 1 on the surface of water, and present certain slope and make the transport more smooth and easy, the row spacing is farther, pressure device 3 is connected with flotation device 2 for pressurize in order to increase the row spacing to conveyer pipe 1, can make flotation device 2 install fast and accomodate simultaneously, the device simple installation, the simple operation, the cost is lower, be convenient for the installation with accomodate, can be stable increase the row spacing for conveyer pipe 1 pressurization, improved work efficiency, make things convenient for people to use.

The flotation device 2 comprises an inflation tube 4, a plurality of float bowls 5 are fixedly connected to the outer wall of the conveying pipe 1, the radius of the float bowls 5 is gradually reduced along the conveying pipe 1, the float bowls 5 are arranged in a plurality of positions which are communicated with the inflation tube 1 and are used for preventing the conveying pipe 1 from rotating, a limiting floating block 6 is arranged on each of two sides of each float bowl 5, the inflation tube 4 penetrates through and communicates with all the float bowls 5, the inflation tube 4 is connected with a pressurizing device 3, a pressurizing mechanism 7 which is convenient for pressurizing and conveying the conveying pipe 1 is arranged in each float bowl 5, air is conveyed to the inflation tube 4 through the pressurizing device 3, the float bowl 5 is filled with gas, the conveying pipe 1 can be stably floated on the water surface under the action of the limiting floating block 6, the radius of the float bowl 5 is gradually reduced along the conveying pipe 1, so that the conveying pipe 1 is of a certain downward inclined slope, and the muddy water in the conveying pipe 1 is conveyed more rapidly under the influence of gravity, the resistance is reduced, the row spacing is increased, simultaneously the energy is saved, the pressurizing mechanism 7 can pressurize and transport the conveying pipe 1, and the row spacing is greatly increased.

Pressurizing mechanism 7 is including seting up a plurality of pressurized groove 8 on floating pontoon 5 and conveyer pipe 1, and is a plurality of pressurized groove 8 is the incline direction, is convenient for promote inside muddy water and transports, be equipped with the one-way pressurization exhaust of being convenient for in pressurized groove 8 and prevent the air admission and exhaust apparatus 9 of gas adverse current, pressure device 3 is in to floating pontoon 5 continuous pressor the time, and it is too big to float 5 internal gas pressure of section of thick bamboo, can promote air admission and exhaust apparatus 9 and discharge inside gaseous along conveyer pipe 1's direction of delivery to promote inside muddy water fast flow, increase the row apart from.

The pressurizing device 3 comprises a machine body 10, a base 11 is fixedly connected to the bottom of the machine body 10, a plurality of nuts 12 used for being in threaded connection with a dredger hull are in threaded connection with the base 11, a device cavity 13 is formed in the machine body 10, a motor 14 is fixedly connected in the device cavity 13, a driving disc 15 is fixedly connected to the output end of the motor 14, a rotating shaft 16 is fixedly connected to the top surface of the driving disc 15, a push rod 17 is rotatably connected to the rotating shaft 16, a pressurizing cavity 18 is formed in the machine body 10, a pressurizing block 19 is slidably connected in the pressurizing cavity 18, a groove 20 is formed in the side surface of the pressurizing block 19, one end, far away from the rotating shaft 16, of the push rod 17 is rotatably connected with the groove 20, a switching device 21 is arranged on the machine body 10, the switching device 21 is used for rapidly switching the pressurizing direction of the device cavity 13, and is convenient for pressurizing the gas-filled tube 4 or extracting the gas-filled tube 4, thereby be convenient for flotation device 2's start-up and dismouting, install organism 10 and base 11 on the hull through nut 12, starter motor 14, drive-disc 15 rotates, drive-disc 15 drives pivot 16 and rotates, because pivot 16 is not installed in the centre of a circle department of drive-disc 15, pivot 16 drives catch bar 17 constantly to promote with briquetting 19 flexible in pressurization chamber 18, take outside air into gas tube 4, can accomplish the pressurization to gas tube 4 and showy section of thick bamboo 5, after rotating auto-change over device 21, can change the direction of pressurization, thereby take out the gas in the float flotation pontoon 5, outside exhaust, thereby reach the mesh of quick exhaust accomodating float flotation pontoon 5.

The switching device 21 comprises a rotating groove 22 formed in the machine body 10, a rotating disc 23 is rotatably connected in the rotating groove 22, a communicating cavity 24 communicated with the pressurizing cavity 18 is formed in the rotating disc 23, communicating pipes 25 are respectively formed in two sides of the communicating cavity 24, two exhaust pipes 26 communicated with the communicating pipes 25 are formed in the side surface of the machine body 10, any one of the exhaust pipes 26 is fixedly connected with one end of the inflation tube 4 and communicated with the inflation tube, a handle 27 is fixedly connected to the side surface of the rotating disc 23, a limiting device 28 convenient for limiting the rotating disc 23 is arranged on the machine body 10, an air inlet and exhaust device 9 is arranged in each of the two communicating pipes 25, the handle 27 is rotated to drive the rotating disc 23 to rotate, the directions of the air inlet and exhaust devices 9 in the two communicating pipes 25 can be changed, the inlet and outlet directions of air can be rapidly switched, and the pressurizing or exhausting function can be realized, the turntable 23 can be limited by the limiting device 28, and the turntable 23 is prevented from deviating.

The limiting device 28 comprises an inserting block 29 which penetrates through the top surface of the machine body 10 and is in sliding connection with the machine body 10, two inserting grooves 30 which are symmetrically distributed along the circle center of the rotating disc 23 are formed in the rotating disc 23, the inserting block 29 is inserted into any one of the inserting grooves 30, a handle 31 is fixedly connected to the top end of the inserting block 29, a first spring 32 which is fixedly connected with the bottom surface of the handle 31 and the machine body 10 is fixedly connected to pull the handle 31, the inserting block 29 is separated from the inserting connection with the inserting groove 30, the first spring 32 is stretched, the rotating disc 23 can be rotated at the moment, after the rotating disc rotates 180 degrees, the gas inlet and outlet direction of the gas inlet and outlet device 9 can be changed, the handle 31 is loosened, the spring is recovered, the inserting block 29 into the inserting groove 30, and the limiting of the rotating disc 23 can be completed.

The air inlet and exhaust device 9 comprises a fixed pipe 33 fixedly connected with the inner wall of the communicating pipe 25 or the pressurizing groove 8, a first through hole 34 is formed in the fixed pipe 33, a sliding pipe 35 is slidably connected in the first through hole 34, an annular cavity 36 is formed between the sliding pipe 35 and the fixed pipe 33, a second spring 37 fixedly connected with the side of the sliding pipe 35 and fixedly connected with the fixed pipe 33 is arranged at one end of the sliding pipe 35, a tapered hole 38 is formed in one end of the sliding pipe 35, a second through hole 39 communicated with the tapered hole 38 is formed in the sliding pipe 35, a side hole 40 communicated with the second through hole 39 is formed in the side of the sliding pipe 35, a plurality of third through holes 41 communicated with the side hole 40 are formed in the fixed pipe 33, a fourth through hole 42 communicated with the annular cavity 36 is formed in the fixed pipe 33, and the pressurizing device 3 is in a pressurizing state: the pressurizing block 19 continuously moves in the pressurizing cavity 18, the gas in the annular cavity 36 at one side is pumped into the pressurizing cavity 18 through the fourth through hole 42, the second spring 37 is compressed, the sliding tube 35 moves until the side hole 40 is communicated with the third through hole 41, the outside gas flows into the pressurizing cavity 18, the sliding tube 35 at the other side moves towards the pressurizing cavity 18, the second spring 37 is stretched, the side hole 40 is not communicated with the third through hole 41, the gas cannot flow to the pressurizing cavity 18 from the gas filling tube 4, when the pressurizing block 19 pushes, the gas pressure in the pressurizing cavity 18 is increased, the gas flows to the annular cavity 36 through the fourth through hole 42 at the moment, the second spring 37 at the side close to the outside rebounds, the sliding tube 35 moves to disconnect the side hole 40 from the third through hole 41, the gas cannot flow to the outside, only the sliding tube 35 at one side of the gas filling tube 4 can be pushed to move, the second spring 37 is compressed, and therefore the side hole 40 is communicated with the third through hole 41, the gas in the pressurizing cavity 18 can be pushed into the gas-filled tube 4 to realize the pressurizing function; the state of the pressurizing mechanism 7 at this time is: when the floating buoy 5 needs to be exhausted and stored, the rotary disc 23 is rotated to change the direction of the air inlet and exhaust device 9, and the purpose of continuously exhausting the air in the inflation pipe 4 to the outside in the process of continuously drawing the pressurizing block 19 can be realized; the state of the pressurizing mechanism 7 at this time is: the air pressure in the floating buoy 5 is reduced, the second spring 37 rebounds, the side hole 40 is disconnected with the third through hole 41, and therefore muddy water in the conveying pipe 1 cannot flow back into the floating buoy 5.

The handle 27 is provided with a pointer 43 for indicating the direction of the air flow, so that the direction of the air flow is indicated, and people can conveniently judge whether the air flow is in a pressurizing state or an exhausting state.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Assembly type dredge pipeline transport adds air entrainment pressure boost and increases row spacing device, its characterized in that includes:

a delivery pipe (1) with one end connected with the dredger body;

a floating device (2) connected with the delivery pipe (1) and used for floating the delivery pipe (1) on the water surface;

and the pressurizing device (3) is connected with the floating device (2) and is used for pressurizing the conveying pipe (1) to increase the row pitch and simultaneously enabling the floating device (2) to be quickly installed and stored.

2. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 1, wherein: flotation device (2) are including gas tube (4), a plurality of flotation pontoon (5) that float of outer wall fixedly connected with of conveyer pipe (1), a plurality of the radius size of floating pontoon (5) is steadilyd decrease along conveyer pipe (1), and is a plurality of the equal fixedly connected with in both sides of floating pontoon (5) prevents conveyer pipe (1) pivoted spacing floating block (6) rather than being linked together, gas tube (4) run through and communicate all float pontoon (5), gas tube (4) are connected with pressure device (3), be equipped with in the floating pontoon (5) and be convenient for pressurize loading mechanism (7) of transportation to conveyer pipe (1).

3. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 2, wherein: pressurization mechanism (7) are including seting up a plurality of pressurized groove (8) on floating pontoon (5) and conveyer pipe (1), a plurality of pressurized groove (8) are the incline direction, are convenient for promote inside muddy water and transport, be equipped with in pressurized groove (8) and be convenient for one-way pressurization exhaust and prevent air intake and exhaust device (9) against the current.

4. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 3, wherein: the pressurizing device (3) comprises a machine body (10), a base (11) is fixedly connected to the bottom of the machine body (10), a plurality of nuts (12) which are used for being in threaded connection with a dredger hull are in threaded connection with the base (11), a device cavity (13) is formed in the machine body (10), a motor (14) is fixedly connected in the device cavity (13), a driving disc (15) is fixedly connected to the output end of the motor (14), a rotating shaft (16) is fixedly connected to the top surface of the driving disc (15), a pushing rod (17) is rotatably connected to the rotating shaft (16), a pressurizing cavity (18) is formed in the machine body (10), a pressurizing block (19) is slidably connected in the pressurizing cavity (18), a groove (20) is formed in the side surface of the pressurizing block (19), and one end, far away from the rotating shaft (16), of the pushing rod (17) is rotatably connected with the groove (20), the machine body (10) is provided with a switching device (21), the switching device (21) is used for rapidly switching the pressurizing direction of the device cavity (13), so that the inflation tube (4) is pressurized or the inflation tube (4) is pumped, and the floating device (2) is started and disassembled conveniently.

5. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 4, wherein: switching device (21) include rotation groove (22) of seting up on organism (10), it is connected with carousel (23) to rotate groove (22) internal rotation, set up intercommunication chamber (24) that are linked together with pressurization chamber (18) on carousel (23), communicating pipe (25) have all been seted up to the both sides in intercommunication chamber (24), two blast pipes (26) that are linked together with communicating pipe (25), arbitrary one are seted up to the side of organism (10) blast pipe (26) and the one end fixed connection of gas tube (4), and rather than being linked together, the side fixedly connected with handle (27) of carousel (23), be equipped with on organism (10) and be convenient for carry out spacing stop device (28), two to carousel (23) all set up in communicating pipe (25) and advance exhaust apparatus (9).

6. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 5, wherein: stop device (28) including running through organism (10) top surface and with organism (10) sliding connection's inserted block (29), two slots (30) along carousel (23) centre of a circle symmetric distribution have been seted up on carousel (23), inserted block (29) and arbitrary one slot (30) are to pegging graft, the top fixedly connected with handle (31) of inserted block (29), the bottom surface fixedly connected with of handle (31) and organism (10) fixed connection's first spring (32).

7. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 6, wherein: advance exhaust apparatus (9) include with inner wall fixed connection's of communicating pipe (25) or pressurization groove (8) fixed pipe (33), first through-hole (34) have been seted up in fixed pipe (33), sliding connection has sliding tube (35) in first through-hole (34), be equipped with annular chamber (36) between sliding tube (35) and fixed pipe (33), the side fixedly connected with of sliding tube (35) and fixed pipe (33) fixed connection's second spring (37), bell mouth (38) have been seted up to the one end of sliding tube (35), set up second through-hole (39) that are linked together with bell mouth (38) on sliding tube (35), side hole (40) that are linked together with second through-hole (39) have been seted up to the side of sliding tube (35), set up a plurality of third through-holes (41) that are linked together with side hole (40) on fixed pipe (33), and a fourth through hole (42) communicated with the annular cavity (36) is formed in the fixed pipe (33).

8. The assembly type dredger pipe conveying gas-filling and pressurizing row spacing increasing device according to claim 7, wherein: the handle (27) is provided with a pointer (43) which is convenient for indicating the direction of the airflow.

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