CN215158569U

CN215158569U - Water conservancy construction feeding device of self-cleaning

Info

Publication number: CN215158569U
Application number: CN202121697638.7U
Authority: CN
Inventors: 卓常贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-12-14
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a water conservancy construction feeding device of self-cleaning, the on-line screen storage device comprises a base, the bottom four corners of base all rotates and installs the walking wheel, the top right side of base articulates there is the rotation seat, rotates the top fixedly connected with conveying cylinder of seat, and it has the first electric telescopic handle that two slopes set up to articulate between the bottom of conveying cylinder and the top of base, rotates between the both sides inner wall of conveying cylinder and installs the pillar, and welds the cover on the pillar and be equipped with spiral delivery leaf, and the bottom left side intercommunication of conveying cylinder is fixed with the discharging pipe, and the top right side intercommunication of conveying cylinder is fixed with the inlet pipe. The utility model relates to a rationally, be convenient for to the thick liquids defeated material, be convenient for adjust defeated material height, and be convenient for to the inside self-cleaning of conveying section of thick bamboo after the use, avoid leading to the thick liquids to solidify the phenomenon that causes the shutoff on conveying section of thick bamboo inner wall because of not cleaning, convenient next use, and need not personnel manual clearance, labour saving and time saving satisfies the user demand.

Description

Water conservancy construction feeding device of self-cleaning

Technical Field

The utility model relates to a defeated material equipment technical field especially relates to a water conservancy construction feeding device of self-cleaning.

Background

The water conservancy construction is an engineering which is built for controlling and allocating surface water and underground water in the nature to achieve the purposes of removing harm and benefiting benefit, and the water conservancy construction material conveying device is a conveying device for conveying concrete slurry in the water conservancy construction process; current water conservancy construction feeding device comprises base, the defeated feed cylinder of rotating adjustable installation at the base top and the spiral delivery leaf of rotating the installation in defeated feed cylinder, can utilize the spiral delivery leaf to carry thick liquids.

The existing water conservancy construction material conveying device has the defect that the interior of a material conveying cylinder is inconvenient to automatically clean after being used; if not wash, under long-time the use, the thick liquids solidifies easily on the conveying cylinder inner wall, causes the jam, influences the next use, can not satisfy the user demand, for this reason we have proposed a water conservancy construction feeding device of self-cleaning for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a self-cleaning water conservancy construction material conveying device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a self-cleaning water conservancy construction material conveying device comprises a base, wherein four corners of the bottom of the base are respectively and rotatably provided with a traveling wheel, a rotating seat is hinged on the right side of the top of the base, a material conveying cylinder is fixedly connected on the top of the rotating seat, two first electric telescopic rods which are obliquely arranged are hinged between the bottom of the material conveying cylinder and the top of the base, a rotating pipe is rotatably arranged between the inner walls of the two sides of the material conveying cylinder, and the rotary pipe is welded and sleeved with a spiral conveying blade, the left side of the bottom of the conveying cylinder is communicated and fixed with a discharging pipe, the right side of the top of the conveying cylinder is communicated and fixed with a feeding pipe, the top end of the feeding pipe is communicated and fixed with a storage bin, the right end of the rotary pipe extends out of the conveying cylinder, the rotary pipe is fixedly sleeved and sleeved with a first gear positioned at the right side of the conveying cylinder, a second gear is meshed with the bottom of the first gear, a driving motor is fixedly mounted at the top of the rotating seat, and an output shaft of the driving motor is fixedly connected with the right side of the second gear;

sliding connection has adjustable closed water spray to wash the mechanism in the runner, and adjustable closed water spray washes the right side of mechanism and extends to the right side of feed cylinder, and adjustable closed water spray washes mechanism fixed mounting at the top of rotating the seat, the left side fixedly connected with drive deblocking mechanism of feed cylinder, and the right-hand member of drive deblocking mechanism extend to in the runner and with adjustable closed water spray wash the left end rotation of mechanism and be connected.

Preferably, the adjustable closed water-spraying flushing mechanism comprises an inner pipe with a left end of a blocking structure, two limit blocks, a high-pressure water pump, a fixed plate, a hose and a water tank, wherein the inner pipe is sleeved in a rotating pipe in a sealing and sliding manner, a plurality of first water outlet holes which are obliquely arranged are formed in the inner wall of the top part and the inner wall of the bottom part of the rotating pipe respectively, a plurality of second water outlet holes which are obliquely arranged are formed in the inner wall of the top part and the inner wall of the bottom part of the inner pipe respectively, the second water outlet holes are positioned on the left side of the corresponding first water outlet holes and matched with the first water outlet holes, limit grooves are formed in the inner wall of the top part and the inner wall of the bottom part of the rotating pipe respectively, one sides of the two limit blocks, which are close to each other, are fixedly connected with the top parts of the corresponding limit grooves respectively, the bottom parts of the fixed plate are fixedly connected with the top parts of the rotating seats, the right side of the high-pressure water pump is fixedly connected with the left side of the fixed plate, the rotating pipe is sleeved outside of the water outlet end of the high-pressure water pump in a sealing and rotating manner, the bottom of water tank and the top fixed connection of base, the water tank is located between two electric telescopic handle, and the bottom intercommunication of hose is fixed in the right side bottom of water tank, and the top of hose and the end intercommunication of intaking of high pressure water pump are fixed, and the hose is located the rear side of rotating the seat.

Preferably, drive deblocking mechanism includes second electric telescopic handle and L shape axle, the right side of second electric telescopic handle and the left side fixed connection of feed cylinder, the end left end that stretches out of second electric telescopic handle and the left side inner wall fixed connection of L shape axle, the right-hand member of L shape axle extend to in the revolving tube and rotate with the left end of inner tube and be connected, and feed cylinder movable sleeve is established on L shape is epaxial.

Preferably, a rotating groove is formed in the inner wall of the left side of the material conveying cylinder, a first sealing bearing is fixedly sleeved in the rotating groove, a first round hole is formed in the inner wall of the right side of the material conveying cylinder, a second sealing bearing is fixedly sleeved in the first round hole, and the inner ring of the second sealing bearing and the inner ring of the first sealing bearing are fixedly sleeved with the outer side of the rotating pipe.

Preferably, the top left side fixedly connected with support of base, the top bonding of support is fixed with the crashproof cushion, and the crashproof cushion is located the below of feed delivery section of thick bamboo and cooperatees with the feed delivery section of thick bamboo.

Preferably, a third sealing bearing is fixedly sleeved in the rotating pipe, and an inner ring of the third sealing bearing is fixedly sleeved with the outer side of the water outlet end of the high-pressure water pump.

Preferably, the distance between the right inner wall of the second water outlet hole and the right inner wall of the corresponding first water outlet hole is the same as the distance between the right side of the limiting block and the right inner wall of the corresponding limiting groove.

Preferably, the left end of the inner tube is fixedly connected with a first bearing, and an inner ring of the first bearing is fixedly sleeved with the outer side of the L-shaped shaft.

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

through the base, the rotating seat, the material conveying cylinder, the material discharging pipe, the first electric telescopic rod, the rotating pipe, the spiral conveying blade, the first gear, the second gear, the driving motor, the first water outlet hole, the inner pipe, the second water outlet hole, the high-pressure water pump, the water tank, the hose, the L-shaped shaft, the second electric telescopic rod and the limiting blocks, the slurry is filled into the storage bin, the slurry enters the material conveying cylinder through the material feeding pipe, the driving motor is started to drive the second gear to rotate, the second gear drives the rotating pipe to rotate through the first gear, the rotating pipe drives the inner pipe to rotate through the two limiting blocks, the rotating pipe drives the spiral conveying blade to convey the slurry to the left, so that the slurry is discharged through the material discharging pipe gradually, the purpose of conveying the slurry is realized, the two first electric telescopic rods are started forward to drive the material conveying cylinder to rotate upwards, the material conveying cylinder drives the rotating seat to rotate, the material discharging pipe drives the material discharging pipe to displace upwards, and the inclination angle of the material conveying cylinder changes, the purpose of adjusting the conveying height is achieved;

when the interior of the conveying cylinder needs to be cleaned, a person firstly reversely starts the second electric telescopic rod to drive the L-shaped shaft to move rightwards, the L-shaped shaft drives the inner pipe to slide rightwards in the rotating pipe, the inner pipe drives the two limiting blocks to slide rightwards in the corresponding limiting grooves respectively, the inner pipe drives the second water outlets to move rightwards to be aligned with the first water outlets, the high-pressure water pump is started to pump water in the water tank through the hose and discharge the water into the rotating pipe, the water enters the inner pipe leftwards and then is sprayed out through the second water outlets and the first water outlets, the inner wall of the conveying cylinder is washed, impurities attached to the inner wall of the conveying cylinder can be washed away, the effect of the spiral conveying blade in rotation on leftward conveying the water can be matched, the impurities and the water can be conveyed and discharged through the discharging pipe, and the purpose of automatically cleaning the interior of the conveying cylinder after use is achieved.

The utility model relates to a rationally, be convenient for to the thick liquids defeated material, be convenient for adjust defeated material height, and be convenient for to the inside self-cleaning of conveying section of thick bamboo after the use, avoid leading to the thick liquids to solidify the phenomenon that causes the shutoff on conveying section of thick bamboo inner wall because of not cleaning, convenient next use, and need not personnel manual clearance, labour saving and time saving satisfies the user demand.

Drawings

Fig. 1 is a schematic sectional structural view of a self-cleaning water conservancy construction conveying device provided by the utility model;

FIG. 2 is an enlarged view of part A of FIG. 1;

fig. 3 is an enlarged schematic view of part B of fig. 1.

In the figure: the device comprises a base 1, a rotating seat 2, a material conveying cylinder 3, a discharging pipe 301, a first electric telescopic rod 4, a rotating pipe 5, a spiral conveying blade 6, a first gear 7, a second gear 8, a driving motor 9, a first water outlet hole 10, an inner pipe 11, a second water outlet hole 12, a high-pressure water pump 13, a water tank 14, a hose 15, a shaft 16L-shaped shaft 17, a second electric telescopic rod 18 and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a self-cleaning water conservancy construction feeding device comprises a base 1, walking wheels are rotatably mounted at four corners of the bottom of the base 1, a rotating seat 2 is hinged at the right side of the top of the base 1, a feeding cylinder 3 is fixedly connected to the top of the rotating seat 2, two first electric telescopic rods 4 which are obliquely arranged are hinged between the bottom of the feeding cylinder 3 and the top of the base 1, a rotating pipe 5 is rotatably mounted between inner walls of two sides of the feeding cylinder 3, a spiral conveying blade 6 is welded and sleeved on the rotating pipe 5, a discharging pipe 301 is communicated and fixed at the left side of the bottom of the feeding cylinder 3, a feeding pipe is communicated and fixed at the right side of the top of the feeding cylinder 3, a storage bin is communicated and fixed at the top end of the feeding pipe, the rotating pipe 5 extends out of the feeding cylinder 3, a first gear 7 which is positioned at the right side of the feeding cylinder 3 is fixedly sleeved on the rotating pipe 5, and a second gear 8 is meshed at the bottom of the first gear 7, a driving motor 9 is fixedly installed at the top of the rotating seat 2, and an output shaft of the driving motor 9 is fixedly connected with the right side of the second gear 8;

an adjustable closed water spraying and washing mechanism is connected in the rotating pipe 5 in a sliding mode, the right side of the adjustable closed water spraying and washing mechanism extends to the right side of the material conveying cylinder 3, the adjustable closed water spraying and washing mechanism is fixedly installed at the top of the rotating seat 2, the left side of the material conveying cylinder 3 is fixedly connected with a driving deblocking mechanism, and the right end of the driving deblocking mechanism extends into the rotating pipe 5 and is connected with the left end of the adjustable closed water spraying and washing mechanism in a rotating mode;

the adjustable closed water spraying and washing mechanism comprises an inner pipe 11 with a blocking structure at the left end, two limit blocks 18, a high-pressure water pump 13, a fixed plate, a hose 15 and a water tank 14, wherein the inner pipe 11 is sleeved in a rotary pipe 5 in a sealing and sliding manner, a plurality of first water outlet holes 10 which are obliquely arranged are respectively formed in the inner wall at the top and the inner wall at the bottom of the rotary pipe 5, a plurality of second water outlet holes 12 which are obliquely arranged are respectively formed in the inner wall at the top and the inner wall at the bottom of the inner pipe 11, the second water outlet holes 12 are positioned at the left side of the corresponding first water outlet holes 10 and matched with the first water outlet holes 10, limit grooves are respectively formed in the inner wall at the top and the inner wall at the bottom of the rotary pipe 5, the mutually close sides of the two limit blocks 18 are respectively and fixedly connected with the top and the bottom of the inner pipe 11, the limit blocks 18 are connected with the corresponding limit grooves in a sliding manner, the bottom of the fixed plate is fixedly connected with the top of the rotary seat 2, and the right side of the high-pressure water pump 13 is fixedly connected with the left side of the fixed plate, the rotating pipe 5 is sleeved outside the water outlet end of the high-pressure water pump 13 in a sealing and rotating mode, the bottom of the water tank 14 is fixedly connected with the top of the base 1, the water tank 14 is located between the two first electric telescopic rods 4, the bottom end of the hose 15 is communicated and fixed to the bottom of the right side of the water tank 14, the top end of the hose 15 is communicated and fixed with the water inlet end of the high-pressure water pump 13, and the hose 15 is located on the rear side of the rotating seat 2;

drive deblocking mechanism includes second electric telescopic handle 17 and L shape axle 16, the right side of second electric telescopic handle 17 and the left side fixed connection of defeated feed cylinder 3, the left side inner wall fixed connection of the end left end that stretches out and L shape axle 16 of second electric telescopic handle 17, L shape axle 16's right-hand member extends to in the runner 5 and rotates with the left end of inner tube 11 to be connected, and 3 movable sleeve of defeated feed cylinder are established on L shape axle 16, the utility model relates to a rationally, be convenient for defeated the material to the thick liquids, the defeated material height of adjustment of being convenient for, and be convenient for to defeated feed cylinder 3 inside self-cleaning after the use, avoid causing the phenomenon of shutoff because of not washing the thick liquids that leads to solidify on defeated feed cylinder 3 inner walls, convenient next use, and need not the manual clearance of personnel, labour saving and time saving satisfies the user demand.

In the utility model, a rotating groove is arranged on the left inner wall of a material conveying cylinder 3, a first sealing bearing is fixedly sleeved in the rotating groove, a first round hole is arranged on the right inner wall of the material conveying cylinder 3, a second sealing bearing is fixedly sleeved in the first round hole, the inner ring of the second sealing bearing and the inner ring of the first sealing bearing are fixedly sleeved with the outer side of a rotating pipe 5, a support is fixedly connected with the left side of the top of a base 1, an anti-collision rubber pad is fixedly bonded on the top of the support, the anti-collision rubber pad is positioned below the material conveying cylinder 3 and matched with the material conveying cylinder 3, a third sealing bearing is fixedly sleeved in the rotating pipe 5, the inner ring of the third sealing bearing is fixedly sleeved with the outer side of the water outlet end of a high-pressure water pump 13, the distance between the right inner wall of a second water outlet hole 12 and the right inner wall of a corresponding first water outlet hole 10 is the same as the distance between the right side of a limiting block 18 and the right inner wall of a corresponding limiting groove, the left end fixedly connected with first bearing of inner tube 11, and the fixed suit in the outside of the inner circle of first bearing and L shape axle 16, the utility model relates to a rationally, be convenient for to the thick liquids defeated material, the defeated material height of adjustment of being convenient for, and be convenient for to defeated material section of thick bamboo 3 inside self-cleaning after the use, avoid leading to the thick liquids to solidify the phenomenon that causes the shutoff on defeated material section of thick bamboo 3 inner walls because of not cleaning, convenient next use, and need not the manual clearance of personnel, labour saving and time saving satisfies the user demand.

The working principle is as follows: when the device is used, during material conveying, slurry is poured into the storage bin, the slurry enters the material conveying cylinder 3 through the material inlet pipe at the bottom of the storage bin, the driving motor 9 is started, the output shaft of the driving motor 9 drives the second gear 8 to rotate, the second gear 8 drives the rotary pipe 5 to rotate through the first gear 7 meshed with the second gear, the rotary pipe 5 drives the inner pipe 11 to rotate at the outer side of the water outlet end of the high-pressure water pump 13 through the two limiting blocks 18, the rotary pipe 5 drives the spiral conveying blade 6 to rotate, and the slurry can be conveyed leftwards when the spiral conveying blade 6 rotates, so that the slurry is gradually discharged through the material outlet pipe 301, and the purpose of conveying the slurry is achieved;

when the material conveying height of the material conveying cylinder 3 needs to be adjusted, the two first electric telescopic rods 4 are started in the forward direction, the extending ends of the two first electric telescopic rods 4 drive the material conveying cylinder 3 to rotate upwards, the material conveying cylinder 3 rotating upwards drives the two first electric telescopic rods 4 to rotate at the top of the base 1, the material conveying cylinder 3 drives the rotating seat 2 to rotate, meanwhile, the material conveying cylinder 3 drives the material discharging pipe 301 to move upwards, at the moment, the inclination angle of the material conveying cylinder 3 changes, and the purpose of adjusting the material conveying height is achieved;

after the material conveying is finished, when the interior of the material conveying cylinder 3 needs to be cleaned, a person reversely starts a second electric telescopic rod 17 at first, an extending end of the second electric telescopic rod 17 drives an L-shaped shaft 16 to move rightwards, the L-shaped shaft 16 drives an inner pipe 11 to slide rightwards in a rotating pipe 5, the inner pipe 11 drives two limiting blocks 18 to slide rightwards in corresponding limiting grooves respectively, meanwhile, the inner pipe 11 drives a plurality of second water outlet holes 12 to move rightwards, when the limiting blocks 18 move rightwards to be in contact with the inner wall of the right side of the corresponding limiting grooves, the person closes the second electric telescopic rod 17, the second water outlet holes 12 are aligned with the corresponding first water outlet holes 10, at the moment, a high-pressure water pump 13 is started, the high-pressure water pump 13 pumps water in a water tank 14 through a hose 15 and discharges the water into the rotating pipe 5, the water enters the inner pipe 11 leftwards, and then is sprayed outwards through the plurality of second water outlet holes 12 and the plurality of first water outlet holes 10 in sequence, spun water erodees the inner wall of feed delivery cylinder 3, can wash away 3 inner walls of feed delivery cylinder and be stained with the impurity that attaches, effect that screw transport leaf 6 in the cooperation rotation carried water left, can carry impurity and water through discharging pipe 301 and discharge, realize using the back to the inside self-cleaning's of feed delivery cylinder 3 purpose, avoid causing the phenomenon that the thick liquids solidifies on 3 inner walls of feed delivery cylinder because of not cleaning, convenient next use, and need not personnel manual clearance, time saving and labor saving.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A self-cleaning water conservancy construction material conveying device comprises a base (1), wherein walking wheels are rotatably arranged at four corners of the bottom of the base (1), and the self-cleaning water conservancy construction material conveying device is characterized in that a rotating seat (2) is hinged at the right side of the top of the base (1), a material conveying cylinder (3) is fixedly connected at the top of the rotating seat (2), two first electric telescopic rods (4) which are obliquely arranged are hinged between the bottom of the material conveying cylinder (3) and the top of the base (1), a rotating pipe (5) is rotatably arranged between inner walls at two sides of the material conveying cylinder (3), a spiral conveying blade (6) is welded on the rotating pipe (5), a discharging pipe (301) is communicated and fixed at the left side of the bottom of the material conveying cylinder (3), a feeding pipe is communicated and fixed at the right side of the top of the material conveying cylinder (3), a material storage bin is communicated and fixed at the top of the feeding pipe, and the right end of the rotating pipe (5) extends out of the material conveying cylinder (3), a first gear (7) positioned on the right side of the material conveying cylinder (3) is fixedly sleeved on the rotating pipe (5), a second gear (8) is meshed at the bottom of the first gear (7), a driving motor (9) is fixedly installed at the top of the rotating seat (2), and an output shaft of the driving motor (9) is fixedly connected with the right side of the second gear (8);

sliding connection has adjustable closed water spray to wash the mechanism in commentaries on classics pipe (5), and adjustable closed water spray washes the right side of mechanism and extends to the right side of conveying cylinder (3), and adjustable closed water spray washes mechanism fixed mounting and at the top of rotating seat (2), the left side fixedly connected with drive deblocking mechanism of conveying cylinder (3), and the right-hand member of drive deblocking mechanism extend to in commentaries on classics pipe (5) and wash the left end rotation of mechanism with adjustable closed water spray and be connected.

2. A self-cleaning water conservancy construction material conveying device according to claim 1, characterized in that the adjustable closed water spraying and flushing mechanism comprises an inner pipe (11) with a left end having a blocking structure, two limit blocks (18), a high pressure water pump (13), a fixing plate, a hose (15) and a water tank (14), the inner pipe (11) is sleeved in the rotating pipe (5) in a sealing and sliding manner, a plurality of first water outlet holes (10) are formed in the top inner wall and the bottom inner wall of the rotating pipe (5), a plurality of second water outlet holes (12) are formed in the top inner wall and the bottom inner wall of the inner pipe (11), the second water outlet holes (12) are located at the left side of the corresponding first water outlet holes (10) and are matched with the first water outlet holes (10), limit grooves are formed in the top inner wall and the bottom inner wall of the rotating pipe (5), one side of the two limit blocks (18) close to each other is fixedly connected with the top and the bottom of the inner pipe (11) respectively, stopper (18) and the spacing groove sliding connection who corresponds, the bottom of fixed plate and the top fixed connection who rotates seat (2), the right side of high pressure water pump (13) and the left side fixed connection of fixed plate, it establishes the play water end outside at high pressure water pump (13) to change sealed rotation cover in pipe (5), the bottom of water tank (14) and the top fixed connection of base (1), water tank (14) are located between two electric telescopic handle (4), the bottom intercommunication of hose (15) is fixed in the right side bottom of water tank (14), the top of hose (15) and the end intercommunication and the fixing of intaking of high pressure water pump (13), hose (15) are located the rear side of rotating seat (2).

3. A self-cleaning water conservancy construction feeding device according to claim 1, characterized in that the driving deblocking mechanism comprises a second electric telescopic rod (17) and an L-shaped shaft (16), the right side of the second electric telescopic rod (17) is fixedly connected with the left side of the feeding cylinder (3), the left end of the extending end of the second electric telescopic rod (17) is fixedly connected with the left inner wall of the L-shaped shaft (16), the right end of the L-shaped shaft (16) extends into the rotating pipe (5) and is rotatably connected with the left end of the inner pipe (11), and the feeding cylinder (3) is movably sleeved on the L-shaped shaft (16).

4. A self-cleaning water conservancy construction feeding device according to claim 1, characterized in that a rotating groove is formed on the left inner wall of the feeding cylinder (3), a first sealing bearing is fixedly sleeved in the rotating groove, a first round hole is formed on the right inner wall of the feeding cylinder (3), a second sealing bearing is fixedly sleeved in the first round hole, and the inner ring of the second sealing bearing and the inner ring of the first sealing bearing are fixedly sleeved on the outer side of the rotating pipe (5).

5. A self-cleaning water conservancy construction feeding device according to claim 1, characterized in that a support is fixedly connected to the left side of the top of the base (1), and an anti-collision rubber mat is fixedly bonded to the top of the support, is positioned below the feeding cylinder (3), and is matched with the feeding cylinder (3).

6. A self-cleaning water conservancy construction feeding device according to claim 2, characterized in that the rotating pipe (5) is internally fixed with a third sealing bearing, and the inner ring of the third sealing bearing is fixedly sleeved with the outer side of the water outlet end of the high-pressure water pump (13).

7. A self-cleaning water conservancy construction feeding device according to claim 2, characterized in that the distance between the right inner wall of the second water outlet hole (12) and the right inner wall of the corresponding first water outlet hole (10) is the same as the distance between the right side of the limiting block (18) and the right inner wall of the corresponding limiting groove.

8. A self-cleaning water conservancy construction feeding device according to claim 3, characterized in that the left end of the inner pipe (11) is fixedly connected with a first bearing, and the inner ring of the first bearing is fixedly sleeved with the outer side of the L-shaped shaft (16).