CN115013052A - A negative pressure pump - Google Patents

Abstract

The invention relates to a water pump, in particular to a negative pressure water pump. The technical problem is as follows: the negative pressure water suction pump avoids sludge blockage and improves the drainage efficiency. The technical scheme of the invention is as follows: the utility model provides a negative pressure suction pump, is including mounting disc, shell body, frame etc. of intaking, and the upper surface of mounting disc is provided with the shell body, and a plurality of inlet opening has evenly been seted up along its circumference in the lateral wall lower part of shell body, and the even rigid coupling of shell body inside wall upper portion along its circumference has a plurality of frame of intaking. According to the invention, the water inlet hole is shielded by the water retaining component when the water retaining component works, water in the rotating component is quickly discharged through the water outlet conversion component by matching the rotating component and the water outlet conversion component, so that negative pressure is generated in the rotating component, the water in the outer shell is quickly pumped into the rotating component by the negative pressure generated by the rotating component, and accumulated sludge is cleaned by the sludge cleaning component, so that the problem that the accumulated sludge blocks the equipment and causes inconvenience for pumping accumulated water in a water sump is avoided.

Description

A negative pressure pump

technical field

The invention relates to a pumping pump, in particular to a negative pressure pumping pump.

Background technique

In the process of underground mining, there is often water seepage or water gushing underground, and underground production water also flows into the mine roadway, all of which cause water to accumulate in the underground. If the mine water is not discharged in time, it will accumulate more and more, affecting the normal production of the mine. Therefore, it is the task of mine drainage to drain the mine water to the ground in time to create a water-free and more hygienic working environment.

At present, when the accumulated water in the water tank is extracted and discharged, the lifting drainage method is usually used, and the existing lifting drainage is to lift the water to the ground with the help of drainage equipment. When the accumulated water in the mine is pumped, the drainage equipment needs to be put into the water tank. At this time, the water outlet of the drainage equipment is in close contact with the bottom of the water tank. In this way, during the pumping process, the sludge at the bottom of the water tank is easy to block the water outlet. , After the water outlet of the existing drainage equipment is blocked, the drainage equipment needs to be taken out and the sludge should be cleaned up. Repeated cleaning of the sludge at the water outlet will affect the drainage progress of the accumulated water in the water tank.

In view of the shortcomings of the existing technology, we developed a negative pressure pump that avoids sludge blockage and improves drainage efficiency.

SUMMARY OF THE INVENTION

In order to overcome the fact that the water outlet of the existing drainage equipment is in close contact with the bottom of the stagnant pit, the mud easily blocks the water outlet during the pumping process, so it is necessary to take it out and clean up the mud, which repeatedly affects the drainage progress. The technical problem: Provided is a negative pressure pump that avoids sludge clogging and improves drainage efficiency.

The technical scheme of the present invention is: a negative pressure pumping pump, comprising an installation plate, an outer casing, a water inlet frame, an inner casing, a fixed plate, a sealing shell, an air inlet pipe and an air outlet pipe, and the upper surface of the installation plate is provided with a casing The lower part of the outer side wall of the outer casing is evenly provided with several water inlet holes along its circumferential direction; An inner casing is provided, the outer casing and the upper part of the outer side wall of the inner casing are evenly provided with a number of water inlets along the circumferential direction, the top of the outer casing is provided with a fixed disk, and the upper surface of the fixed disk is connected with a sealing shell. The rear wall is embedded with an air intake pipe, the front wall of the sealing shell is embedded with an air outlet pipe, and also includes a rotating component, a water outlet conversion component, a sludge removal component and a water blocking component. The inner upper surface of the sealing shell is provided with a rotating component. The disc is rotatably connected with it. A water outlet conversion assembly is arranged between the outer casing and the left wall of the inner casing. The water outlet conversion assembly is located on the upper side of the water inlet hole. The water outlet conversion assembly cooperates with the rotating assembly. , the sludge removal component is fixedly connected with the upper surface of the installation plate, the gap between the sludge removal component and the outer casing is provided with a water blocking component, and the upper part of the water blocking component and the outer casing is slidably arranged.

Preferably, the rotating assembly includes a filter housing, a positioning plate, a fixed housing, a sliding rail, an annular slider, a swing seat, a first rotating shaft, a fan blade, a disc, a connecting rod, a hinge plate, a sliding rod, a lifting frame, The first return spring, the sealing sheet, the moving plate, the fixed rod, the sliding frame, the wedge block and the water supply part, the filter shell is arranged on the lower surface of the fixed plate, the middle part of the upper surface of the filter shell is fixed with a positioning plate, and the filter shell The upper surface of the fixed casing is rotatably provided with a fixed casing, the fixed casing is located on the outer side of the positioning plate, the inner surface of the fixed casing is evenly connected with a number of slide rails along its circumferential direction, and an annular slide rail is slidably arranged between the several slide rails. The lower surface of the annular slider is provided with a limiting groove, the upper surface of the annular slider is evenly fixed with a number of swing seats along its circumferential direction, and the outer side wall of the fixed shell is evenly connected along its circumferential direction with a number of runners. A rotating shaft, a plurality of first rotating shafts and a plurality of sliding rails are arranged alternately, one end of the first rotating shaft is installed with a fan blade, the other end of the first rotating shaft is installed with a disc, and a connecting rod is fixed on the eccentric position of the side wall of the disc A hinge plate is rotatably arranged between the upper and lower adjacent connecting rods and the swing seat, the upper surface of the positioning plate is evenly slidable along its circumferential direction, and there are several sliding rods, and the upper ends of the several sliding rods are slidably arranged in the annular In the limit groove of the sliding block, a lifting frame is arranged between the lower ends of several sliding rods. The lifting frame is slidingly matched with the sludge removal component, and a number of first resets are fixed between the top of the lifting frame and the lower surface of the fixed plate. Springs, several first return springs are respectively wound on the outside of several sliding rods, the front and rear parts of the top of the lifting frame are connected with sealing sheets, the material of the sealing sheets is elastic material, and the sealing sheets on the front and rear sides are connected with the filter housing. The outer side walls of the filter housing are slidably matched, the left and right parts of the lifting frame are provided with moving plates, the lower part of the moving plate is provided with a wedge-shaped groove, the upper part of the right wall of the inner surface of the filter housing is installed with a fixed rod, and the upper part of the left wall of the inner surface of the filter housing is connected with a Sliding frame, a wedge-shaped block is installed in the middle of the inner bottom of the lifting frame, and a water supply component is fixed on the inner and upper surface of the fixed shell. The water supply component cooperates with the sludge cleaning component. The water supply component passes through the positioning plate and the fixed plate. The lower part of the inner side wall of the body is fixedly connected.

Preferably, the water supply component includes a rotating shaft, a sealing disc and a rotating water wheel, the inner and upper surface of the fixed casing is fixed with a rotating shaft, the rotating shaft cooperates with the sludge cleaning assembly, and the rotating shaft passes through the positioning plate and the fixed plate to be rotatably connected with it. A sealing disc is installed on the lower part of the inner surface of the casing, and a rotating shaft passes through the sealing disc to be connected in rotation with the rotating shaft.

Preferably, the water outlet conversion assembly includes a hollow frame, a trough frame, a mounting rod, a water outlet pipe, a discharge pipe, a hollow pipe, a first connecting plate, a limit plate, a sliding plate, a moving rod, a baffle, and a second connecting plate , moving plate, first spring, wedge-shaped frame and second spring, the upper part of the rotating shaft is covered with a hollow frame, the left and right walls of the hollow frame are installed with groove-shaped frames, and the groove-shaped frame on the right side and the fixed rod are slidingly arranged, The left and right trough-shaped frames are respectively matched with the left and right wedge-shaped grooves. The left wall of the left trough-shaped frame is fixedly connected with a mounting rod. A water outlet pipe is embedded in the lower part of the wall, and the water outlet pipe passes through the inner shell and the outer shell. The right part of the hollow tube is embedded in the left wall of the filter housing, the left part of the installation rod is located in the hollow tube, the right part of the hollow tube is fixed with a first connecting plate, and the installation rod passes through the first connecting plate and is slidably connected to it. The left part of the installation rod is provided with a chute, the left part of the installation rod is sleeved with a limit plate, a sliding plate is slidably arranged in the chute, a moving rod is installed in the center of the left wall of the sliding plate, and the moving rod passes through the mounting rod. The left part is slidably connected with it, the left end of the moving rod is installed with a baffle plate, the baffle plate is located in the discharge pipe, the left part of the hollow pipe is fixed with a second connecting plate, the moving rod passes through the second connecting plate and is slidably connected with it, and the The right part is fixed with a moving plate, a first spring is fixed between the left wall of the moving plate and the right wall of the second connecting plate, the first spring is wound around the outside of the moving rod, and the left part of the hollow tube is slidably provided with a wedge-shaped The wedge-shaped frame is located on the upper side of the limit plate, and two second springs are fixedly connected between the wedge-shaped frame and the outer side wall of the hollow tube.

Preferably, the right end of the wedge-shaped frame is longer than the left end.

Preferably, the sludge removal assembly includes a fixed frame, a mounting frame, a fixed frame, an external gear ring, a second rotating shaft, a first gear, a guide rod, an arc-shaped plate, a second return spring, an L-shaped rod, an arc-shaped splint, and a scraper. The fixing frame is fixed on the upper surface of the installation plate, the lifting frame passes through the fixing frame and is slidably connected to it, the fixing frame is located on the inner side of the outer casing, the bottom of the filter casing is connected with the installation frame, and the rotating shaft passes through the installation frame and rotates with it Connection, the inner and upper surface of the installation frame is fixed with a fixed frame, the inner bottom of the fixed frame is rotatably installed with an external gear ring, the left and right parts of the inner bottom of the fixed frame are rotatably installed with a second rotating shaft, and the upper end of the second rotating shaft is fixed. A first gear is connected, the first gears on both sides are located on the outside of the outer gear ring, the first gears on both sides are meshed with the outer gear ring, and the two inner walls of the outer gear ring are fixed with guide rods, and the guide rods on both sides are fixed. Arc-shaped plates are slidably arranged between the two parts of the rod, the rotating shaft is in contact with the arc-shaped plates on both sides, and two second return springs are fixedly connected between the arc-shaped plates on both sides, and the second return springs on both sides are fixed. The springs are respectively wound around the outer sides of the guide rods on both sides, and L-shaped rods are installed on the outer walls of the arc-shaped plates on both sides. The ends of the L-shaped rods are fixed with arc-shaped splints. A scraping part is arranged between the upper surface and the lower surface of the mounting frame, and the scraping part is engaged with the first gears on both sides.

Preferably, the scraping component includes an annular plate, a connecting block, an inner gear ring and a scraper, the annular plate is rotatably connected between the upper surface of the fixed frame and the lower surface of the mounting frame, and the inner side wall of the annular plate is along its circumferential direction. A number of connection blocks are evenly connected, an inner gear ring is fixed between the inner side walls of the several connection blocks, the first gears on both sides are meshed with the inner gear ring, and the outer surface of the annular plate is evenly connected along its circumferential direction. Several scrapers, all of which are slidingly matched with the filter housing.

Preferably, the water retaining assembly includes an annular water retaining plate, an annular limiting ring, an annular floating plate, a first fixing plate, a second fixing plate, an annular fixing plate, a third return spring and a pull rope, and the upper surface of the mounting plate rotates The annular water baffle is arranged between the outer casing and the fixed frame. The outer side wall of the annular water baffle is uniformly opened with a number of feeding ports along its circumferential direction. The upper part of the outer side wall of the outer casing is fixed with a The annular limit ring, the upper part of the outer side wall of the outer casing is slidably provided with an annular floating plate, the annular floating plate is located on the upper side of the annular limit ring, the top of the annular water retaining plate is provided with a groove, and the groove is evenly distributed along its circumferential direction. Several first fixing plates are fixedly connected, several second fixing plates are evenly slidable in the groove along its circumferential direction, and annular fixing plates are fixed between the upper surfaces of several second fixing plates. A third return spring is connected between a fixed plate and the second fixed plate, a pull rope is connected to the side wall of the second fixed plate, and the upper end of the pull rope passes through the adjacent first fixed plate, the annular fixed plate and the outer casing in sequence , the upper end of the pulling rope is fixedly connected with the annular floating plate.

Preferably, it also includes a second gear, a third gear, a crushing frame and a fourth gear, a second gear is installed on the lower end of the second rotating shaft, and a third gear is rotatably installed on both the upper surfaces of the fixed frame, The third gears on both sides mesh with the second gears on both sides respectively, and both parts of the fixed frame are rotatably provided with crushing racks. A fourth gear is installed on the lower part of the frame, and the fourth gears on both sides mesh with the third gears on both sides respectively.

The beneficial effects of the present invention are: the present invention utilizes the buoyancy of water to make the water blocking component work to block the water inlet hole, and through the cooperation of the rotating component and the water outlet transforming component, the water in the rotating component is quickly discharged through the water outlet transforming component, so that the Negative pressure is generated in the rotating component, and the rotating component generates negative pressure to quickly pump the water in the outer shell into it. The sludge removal component works to clean up the accumulated sludge, so as to prevent the sludge from clogging the equipment and causing inconvenience to the water in the water tank. ;Using the rapid rotation of the crushing rack to break up the sludge cleaned by the scraper, so that the dispersed sludge is mixed with water and discharged through the discharge pipe, so as to avoid the continuous accumulation of sludge and cause blockage, and pump the accumulated water in the water tank. cause hindrance.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a schematic cross-sectional three-dimensional structure diagram of the present invention.

FIG. 3 is a partial cross-sectional three-dimensional schematic diagram of the present invention.

FIG. 4 is a schematic cross-sectional three-dimensional structure diagram of the rotating assembly of the present invention.

FIG. 5 is a partial cross-sectional three-dimensional schematic view of the rotating assembly of the present invention.

FIG. 6 is a partial three-dimensional schematic diagram of the rotating assembly of the present invention.

FIG. 7 is a partial three-dimensional structural schematic diagram of the rotating assembly of the present invention.

FIG. 8 is a schematic three-dimensional structure diagram of the water outlet conversion assembly of the present invention.

9 is a schematic cross-sectional three-dimensional structure diagram of the water outlet conversion assembly of the present invention.

FIG. 10 is a schematic diagram of a partial three-dimensional structure of the water outlet conversion assembly of the present invention.

FIG. 11 is a schematic cross-sectional three-dimensional structure diagram of the sludge removal assembly of the present invention.

FIG. 12 is a partial perspective structural schematic diagram of the sludge removal assembly of the present invention.

FIG. 13 is a schematic diagram of a partial three-dimensional structure of the sludge removal assembly of the present invention.

FIG. 14 is a schematic view of a partially enlarged three-dimensional structure of the sludge removal assembly of the present invention.

FIG. 15 is a schematic three-dimensional structure diagram of the water blocking assembly of the present invention.

FIG. 16 is a schematic diagram of an enlarged three-dimensional structure of the present invention A. FIG.

Description of reference numerals: 1. Mounting plate, 2. Outer casing, 201, Water inlet hole, 202, Water inlet frame, 203, Inner casing, 204, Water inlet, 3, Fixed plate, 4, Sealing casing, 5, Intake pipe, 6, Outlet pipe, 7, Rotary assembly, 701, Filter housing, 702, Positioning plate, 703, Fixed housing, 704, Slide rail, 705, Ring slider, 706, Swing seat, 707, First Rotating shaft, 708, fan blade, 709, disc, 710, connecting rod, 711, hinge plate, 712, sliding rod, 713, lifting frame, 714, first return spring, 715, sealing sheet, 716, moving plate, 717 , wedge groove, 718, fixed rod, 719, sliding frame, 720, wedge block, 721, rotating shaft, 722, sealing disc, 723, rotating water wheel, 8, water outlet conversion assembly, 801, hollow frame, 802, groove Rack, 803, installation rod, 804, water outlet pipe, 805, discharge pipe, 806, hollow pipe, 807, first connecting plate, 808, chute, 809, limit plate, 810, sliding plate, 811, moving rod , 812, baffle plate, 813, second connecting plate, 814, moving plate, 815, first spring, 816, wedge frame, 817, second spring, 9, sludge removal assembly, 901, fixed frame, 902, mounting frame , 903, fixed frame, 904, outer ring gear, 905, second shaft, 906, first gear, 907, guide rod, 908, arc plate, 909, second return spring, 910, L-shaped rod, 911, Curved splint, 912, annular plate, 913, connecting block, 914, inner gear ring, 915, scraper, 10, water retaining assembly, 101, annular water retaining plate, 102, feed port, 103, annular limit ring , 104, annular floating plate, 105, groove, 106, first fixed plate, 107, second fixed plate, 108, annular fixed plate, 109, third return spring, 110, rope, 11, second gear, 12. Third gear, 13. Crushing frame, 14. Fourth gear.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Example 1

A negative pressure pump, as shown in Figures 1 and 2, includes a mounting plate 1, an outer casing 2, a water inlet frame 202, an inner casing 203, a fixed plate 3, a sealing shell 4, an air inlet pipe 5, and an air outlet pipe 6. The rotary assembly 7, the water outlet conversion assembly 8, the sludge removal assembly 9 and the water blocking assembly 10. The upper surface of the mounting plate 1 is provided with an outer casing 2, and the lower part of the outer side wall of the outer casing 2 is evenly provided with several inlets along its circumferential direction. In the water hole 201, the upper part of the inner side wall of the outer casing 2 is evenly fixed with a plurality of water inlet frames 202 along its circumferential direction, and an inner casing 203 is arranged between the inner walls of the plurality of water inlet frames 202. The upper part of the outer side wall of 203 is evenly provided with several water inlets 204 along its circumferential direction, the top of the outer casing 2 is provided with a fixed disk 3, the upper surface of the fixed disk 3 is connected with a sealing shell 4, and the rear wall of the sealing shell 4 is embedded with an inlet. The air pipe 5, the air outlet pipe 6 is embedded in the front wall of the airtight shell 4, the inner upper surface of the airtight case 4 is provided with a rotating assembly 7, and the rotating assembly 7 passes through the fixed disk 3 and is rotatably connected to it. The left wall of the outer casing 2 and the inner casing 203 A water outlet conversion assembly 8 is arranged between, the water outlet conversion assembly 8 is located on the upper side of the water inlet hole 201, the water outlet conversion assembly 8 cooperates with the rotary assembly 7, and the lower part of the rotary assembly 7 is provided with a sludge removal assembly 9, and the sludge removal assembly 9 is installed with the The upper surface of the disc 1 is fixedly connected, and a water blocking component 10 is arranged in the gap between the sludge removal component 9 and the outer casing 2 , and the water blocking component 10 and the upper part of the outer casing 2 are arranged in a sliding manner.

When it is necessary to extract the accumulated water in the water tank, the user connects the gas transmission equipment with the air inlet pipe 5, and at the same time the user connects the external pipe with the water outlet conversion component 8, and then the user puts the equipment into the water, and the buoyancy of the water acts The water blocking assembly 10 is operated down, and the water blocking assembly 10 completes the blocking of the water inlet hole 201, and the device floats in the water through the water blocking assembly 10, so as to prevent the device from sinking to the bottom of the water, while the water in the water tank is Subsequently, the water flows into the inner casing 203 through the water inlet 204 and the water inlet frame 202, and the water in the inner casing 203 then falls down into the lower part of the inner side of the outer casing 2. At this time, the user starts the gas delivery device to inflate the air inlet pipe 5, The air in the air intake pipe 5 then enters into the sealing shell 4, and continuously enters the sealing shell 4 through the air, so that the rotating assembly 7 works. In this way, a negative pressure is generated in the rotating assembly 7. At this time, the pressure of the outer casing 2 is greater than the internal pressure of the rotating assembly 7, so that the water of the outer casing 2 quickly enters the rotating assembly 7, and the water in the water outlet transformation assembly 8 flows out, and the water outlet transformation assembly 8. When the water flow out is relatively large, the water outlet conversion component 8 makes the rotating component 7 work, and the rotating component 7 works to release the power to the sludge removal component 9. Since there is some large sludge in the water, the rotating component 7 works on the sludge. To block, when the water output of the water outlet conversion assembly 8 is small, the water outlet conversion assembly 8 will make the rotating assembly 7 work, the rotating assembly 7 will work to make the sludge removal assembly 9 work, and the sludge removal assembly 9 will work to remove the sludge accumulated on the rotating assembly 7. Clean up, so as to prevent the sludge from clogging the equipment and causing inconvenience to the water extraction in the water tank. When the buoyancy no longer supports the water blocking assembly 10, the water blocking assembly 10 will be reset and the water inlet hole 201 will be opened, and the water in the water tank will flow into the outer casing 2 through the water inlet hole 201, so that it is convenient for the water in the lower part of the water tank. The accumulated water is extracted, and a large amount of sludge is prevented from entering the equipment, causing the equipment to be blocked. When the water in the water tank is extracted, the user will take the equipment out of the tank and release the gas transmission equipment from the air inlet pipe 5. At the same time, the connection between the external pipeline and the water outlet conversion component 8 can be released.

Example 2

On the basis of Embodiment 1, as shown in Figures 4-16, the rotating assembly 7 includes a filter housing 701, a positioning disc 702, a fixed housing 703, a slide rail 704, an annular slider 705, a swing seat 706, a first A rotating shaft 707, a fan blade 708, a disc 709, a connecting rod 710, a hinge plate 711, a sliding rod 712, a lifting frame 713, a first return spring 714, a sealing sheet 715, a moving plate 716, a fixing rod 718, a sliding frame 719, The wedge block 720 and the water supply component, the filter housing 701 is arranged on the lower surface of the fixed plate 3, the middle part of the upper surface of the filter housing 701 is fixed with a positioning plate 702, and the upper surface of the filter housing 701 is rotatably provided with a fixed housing 703 , the fixed casing 703 is located on the outside of the positioning plate 702, and the inner surface of the fixed casing 703 is evenly connected with four sliding rails 704 along its circumferential direction. The lower surface of the block 705 is provided with a limiting groove, the upper surface of the annular slider 705 is evenly fixed with four swing seats 706 along its circumferential direction, and the outer side wall of the fixed housing 703 is uniformly rotated along its circumferential direction. A rotating shaft 707, four first rotating shafts 707 and four sliding rails 704 are arranged alternately, the outer ends of the four first rotating shafts 707 are installed with fan blades 708, and the inner ends of the four first rotating shafts 707 are installed with discs 709 , connecting rods 710 are fixed on the eccentric positions of the inner walls of the four discs 709, a hinge plate 711 is rotatably arranged between the upper and lower adjacent connecting rods 710 and the swing seat 706, and the upper surface of the positioning disk 702 is uniform along its circumferential direction. The sliding type is provided with four sliding rods 712 , the upper ends of the four sliding rods 712 are all slidably arranged in the limiting grooves of the annular slider 705 , and a lifting frame 713 is arranged between the lower ends of the four sliding rods 712 . The lifting frame 713 In sliding cooperation with the sludge removal assembly 9 , four first return springs 714 are fixedly connected between the top of the lifting frame 713 and the lower surface of the fixed plate 3 , and the four first return springs 714 are respectively wound around the outer sides of the four sliding rods 712 The front and rear parts of the top of the lifting frame 713 are connected with sealing sheets 715, and the material of the sealing sheets 715 is elastic material. Both are provided with a moving plate 716, the lower part of the moving plate 716 is provided with a wedge-shaped groove 717, a fixing rod 718 is installed on the upper part of the right wall of the inner surface of the filter housing 701, and a sliding frame is connected on the upper part of the left wall of the inner surface of the filter housing 701 719, a wedge-shaped block 720 is installed in the middle of the inner bottom of the lifting frame 713. The wedge-shaped block 720 is in the shape of an inverted circular table. The inner and upper surface of the fixed housing 703 is fixed with a water supply component. The water supply component cooperates with the sludge cleaning component, and the water supply component passes through the positioning plate 702 The fixed plate 3 is rotatably connected to it, and the water supply component is fixedly connected to the lower part of the inner side wall of the filter housing 701 .

The water supply component includes a rotating shaft 721, a sealing disc 722 and a rotating water wheel 723. The inner and upper surface of the fixed casing 703 is fixed with a rotating shaft 721. The rotating shaft 721 cooperates with the sludge cleaning assembly. The rotating shaft 721 passes through the positioning plate 702 and is fixed. The disc 3 is rotatably connected with it, a sealing disc 722 is installed on the lower part of the inner surface of the filter housing 701, the rotating shaft 721 passes through the sealing disc 722 and is rotatably connected with it, and the lower part of the rotating shaft 721 is fixed with a rotating water wheel 723, The underside of disk 722.

The water outlet conversion assembly 8 includes a hollow frame 801, a trough frame 802, a mounting rod 803, a water outlet pipe 804, a discharge pipe 805, a hollow pipe 806, a first connecting plate 807, a limit plate 809, a sliding plate 810, and a moving rod 811 , baffle 812, second connecting plate 813, moving plate 814, first spring 815, wedge frame 816 and second spring 817, the upper part of the rotating shaft 721 is sleeved with a hollow frame 801, and the left and right walls of the hollow frame 801 are installed with The slot-shaped frame 802, the slot-shaped frame 802 on the right side is slidably arranged with the fixing rod 718, the slot-shaped frame 802 on the left and right sides is respectively matched with the wedge-shaped grooves 717 on the left and right sides, and the left wall of the slot-shaped frame 802 on the left side is fixedly connected There is a mounting rod 803. The mounting rod 803 passes through the sliding frame 719 and the filter housing 701 and slides therewith. The lower left wall of the filter housing 701 is embedded with a water outlet pipe 804, and the water outlet pipe 804 passes through the inner casing 203 and the outer casing 2. The left wall of the water outlet pipe 804 is provided with a discharge pipe 805, the upper part of the water outlet pipe 804 is embedded with a hollow pipe 806, the right part of the hollow pipe 806 passes through the outer casing 2 and the inner casing 203, and the right part of the hollow pipe 806 is embedded in the filter. On the left wall of the housing 701, the left part of the installation rod 803 is located in the hollow tube 806, and the right part of the hollow tube 806 is fixed with a first connecting plate 807. The left part of the rod 803 is provided with a chute 808, the left part of the installation rod 803 is sleeved with a limit plate 809, a sliding plate 810 is slidably arranged in the chute 808, and a moving rod 811 is installed in the center of the left wall of the sliding plate 810, The moving rod 811 passes through the left part of the installation rod 803 and is slidably connected with it. The left end of the moving rod 811 is installed with a baffle 812, the baffle 812 is located in the discharge pipe 805, and the left part of the hollow pipe 806 is fixed with a second connecting plate 813, the moving rod 811 passes through the second connecting plate 813 and is slidably connected to it, the right part of the moving rod 811 is fixed with a moving plate 814, and a second connecting plate 813 is fixed between the left wall of the moving plate 814 and the right wall of the second connecting plate 813. A spring 815, the first spring 815 is wound around the outside of the moving rod 811, the left part of the hollow tube 806 is slidably provided with a wedge frame 816, the right end of the wedge frame 816 is longer than the left end, and the wedge frame 816 is located on the limit plate 809 On the side, two second springs 817 are fixed between the wedge frame 816 and the outer side wall of the hollow tube 806 .

The sludge removal assembly 9 includes a fixed frame 901, a mounting frame 902, a fixed frame 903, an outer gear ring 904, a second shaft 905, a first gear 906, a guide rod 907, an arc-shaped plate 908, a second return spring 909, and an L-shaped The rod 910, the arc-shaped splint 911 and the scraping part, the fixing frame 901 is fixed on the upper surface of the mounting plate 1, the lifting frame 713 is slidably connected to it through the fixing frame 901, the fixing frame 901 is located on the inner side of the outer casing 2, and the filter casing The bottom of 701 is connected with a mounting frame 902, and the rotating shaft 721 passes through the mounting frame 902 and is rotatably connected with it. The inner and upper surface of the mounting frame 902 is fixed with a fixing frame 903, and the inner bottom of the fixing frame 903 is rotatably mounted in the middle with an outer gear ring 904. The left and right parts of the inner bottom of the fixing frame 903 are both rotatably mounted with a second rotating shaft 905. The upper end of the second rotating shaft 905 is fixed with a first gear 906. The first gears 906 on both sides are meshed with the outer gear ring 904. The inner wall of the outer ring gear 904 is fixed with guide rods 907 at the front and rear, and the guide rods 907 on the front and rear sides are slidably provided with arcs between the left and right parts. Shaped plate 908, the rotating shaft 721 is in contact with the left and right arc-shaped plates 908, two second return springs 909 are fixed between the left and right arc-shaped plates 908, and the second return springs 909 on the front and rear sides are respectively The outer sides of the guide rods 907 are wound around the front and rear sides. The outer walls of the arc plates 908 on the left and right sides are equipped with L-shaped rods 910. The ends of the L-shaped rods 910 are fixed with arc-shaped splints 911. The arc-shaped splint 911 is located at the wedge-shaped block 720. On the upper side of the fixed frame 901 and the lower surface of the mounting frame 902, a scraping member is provided, and the scraping member is engaged with the first gears 906 on both sides.

The scraping part includes an annular plate 912, a connecting block 913, an inner gear 914 and a scraper 915. The annular plate 912 is rotatably connected between the upper surface of the fixed frame 901 and the lower surface of the mounting frame 902, and the inner side of the annular plate 912 The wall is evenly connected with four connecting blocks 913 along its circumferential direction, an inner gear ring 914 is fixed between the inner side walls of the four connecting blocks 913, the first gears 906 on both sides are meshed with the inner gear 914, and the annular plate Four scrapers 915 are evenly connected to the outer surface of the 912 along its circumferential direction, and the four scrapers 915 are all slidably matched with the filter housing 701 .

The water blocking assembly 10 includes an annular water blocking plate 101 , an annular limiting ring 103 , an annular floating plate 104 , a first fixing plate 106 , a second fixing plate 107 , an annular fixing plate 108 , a third return spring 109 and a pulling rope 110 , The upper surface of the mounting plate 1 is rotatably provided with an annular water baffle 101, the annular water baffle 101 is located between the outer casing 2 and the fixed frame 901, and the outer side wall of the annular water baffle 101 is uniformly opened with a number of inlets along its circumferential direction. The material port 102, the upper part of the outer side wall of the outer casing 2 is fixedly connected with an annular limit ring 103, the upper part of the outer side wall of the outer casing 2 is slidably provided with an annular floating plate 104, and the annular floating plate 104 is located on the upper side of the annular limit ring 103, The top of the annular water baffle 101 is provided with a groove 105, and three first fixing plates 106 are evenly fixed in the groove 105 along its circumferential direction. Three second fixing plates are evenly slidable in the groove 105 along its circumferential direction 107, a ring-shaped fixing plate 108 is fixed between the upper surfaces of the three second fixing plates 107, a third return spring 109 is connected between the adjacent first fixing plates 106 and the second fixing plates 107, and the second fixing plate 107 A pull rope 110 is connected to the side wall of the pull rope. The upper end of the pull rope 110 passes through the adjacent first fixing plate 106, the annular fixing plate 108 and the outer casing 2 in sequence.

When in use, the user puts the device into the water tank, at this time, the annular floating plate 104 is moved upward by the buoyancy of the water, and the annular floating plate 104 moves upward through the pulling rope 110 and the second fixing plate 107, so that the annular water retaining plate 101 Rotate along the center point of the mounting plate 1, so that the water inlet hole 201 on the outer casing 2 is blocked by the annular water baffle 101, so that the water in the water tank enters the outer casing 2 through the water inlet 204 and the water inlet frame 202. Inside, the water flow in the upper part of the water tank is quickly extracted.

The user starts the air delivery device to input air into the sealing shell 4 through the air intake pipe 5, and the air continuously enters the sealing shell 4, so that the fan blade 708 is rotated by the air, and the rotation of the fan blade 708 makes the fixed casing 703 rotate, and the fixed casing 703 rotates to rotate the rotating shaft 721, the rotating shaft 721 rotates to rotate the water wheel 723, and the rotating water wheel 723 quickly transports the water in the filter housing 701 to the water outlet pipe 804. At this time, a negative pressure is generated in the filter housing 701, filtering The shell 701 generates negative pressure so that the water in the outer shell 2 is quickly drawn in, and the water in the outer shell 2 is filtered by the filter shell 701 to filter out the larger sludge in the water, so as to prevent the sludge from blocking the water outlet pipe 804 and supply the water silo. The water in the water is inconvenient to be extracted. The rotating water wheel 723 rotates to transport the water in the filter housing 701 to the water outlet pipe 804, the water in the water outlet pipe 804 flows out through the discharge pipe 805, and the water flowing out of the discharge pipe 805 Then it is transported to other positions through the external pipeline, and when the water in the discharge pipe 805 flows out to the left, push the baffle 812 to move to the left, the baffle 812 moves to the left, and the moving rod 811 moves the moving plate 814 to the left. The spring 815 is compressed accordingly, and at the same time, the sliding plate 810 is moved to the left by the moving rod 811, the sliding plate 810 moves to the left and pushes the limit plate 809 to move to the left, and the limit plate 809 moves to the left through the installation rod 803. The frame 802 moves to the left. When the limit plate 809 moves to the left, it squeezes the wedge frame 816, so that the wedge frame 816 moves upward, and the second spring 817 is stretched accordingly. When the limit plate 809 moves to the left, it does not squeeze the wedge frame. At 816, under the action of the elastic force of the second spring 817, the wedge-shaped frame 816 is moved downward to limit the position of the limit plate 809, and the left-hand slot frame 802 moves to the left to move the hollow frame 801 to the left, and the hollow frame 801 moves to the left. Moving to the left moves the slot frame 802 on the right side to the left, the slot frame 802 moves to the left and cooperates with the wedge-shaped slot 717 to move the moving plate 716 downward, and the moving plate 716 moves downward to move the lifting frame 713 downward. The frame 713 moves downward through the sliding rod 712 to move the annular slider 705 downward, the first return spring 714 is stretched accordingly, the annular slider 705 moves downward, and the swing seat 706 moves downward, and the swing seat 706 moves downward through The cooperation of the hinge plate 711 and the connecting rod 710 causes the disc 709 to rotate downward, the disc 709 rotates downward through the first rotating shaft 707 to swing and tilt the fan blade 708, and the lifting frame 713 moves downward to move the sealing sheet 715 downward, The sealing sheet 715 blocks the space where the lifting frame 713 slides up and down in the filter housing 701 to prevent the water in the inner housing 203 from entering the upper part of the filter housing 701. The block 720 moves downward and squeezes the arc-shaped frame plates on the left and right sides, and the arc-shaped splints 911 on the left and right sides move away from each other. The arc plates 908 on the left and right sides are kept away from each other, and the second return spring 9 09 is then stretched, and the arc-shaped plates 908 on the left and right sides then move away from the rotation shaft 721, so as to prevent the rotation of the rotation shaft 721 from driving the arc-shaped plates 908 on both sides to rotate.

Since the air input into the sealing shell 4 is constant, when the fan blade 708 swings and tilts, the fan blade 708 receives a small wind area, so that the rotating water wheel 723 rotates at a constant speed. The wind-receiving area of the blade 708 becomes larger, and the rotating water wheel 723 will drive the sludge removal component to work at the same time, which will increase the rotational torque required for the operation of the equipment. This will increase the rotational torque of the fan blade 708, thereby making the rotational speed of the rotating water wheel 723 constant, avoiding a large variation in the rotational speed of the rotating water wheel 723, causing a large amount of sludge to pour into the equipment and causing frequent blockages.

When a lot of sludge is accumulated at the lower part of the outer wall of the filter housing 701, the water entering the lower part of the filter housing 701 is reduced, thereby reducing the water input into the water outlet pipe 804. At this time, under the action of the elastic force of the first spring 815, the moving plate is moved. 814 is moved to the right to reset, the moving plate 814 is moved to the right, and the baffle 812 is moved to the right by the moving lever 811, and the moving lever 811 is reset to move the sliding plate 810 to the right. The frame 816 moves upward, the wedge frame 816 moves upward along with it, and the second spring 817 stretches accordingly. At this time, the wedge frame 816 releases the limit on the limit plate 809, and at the same time, under the action of the first return spring 714, the lift frame is lifted. 713 moves upward to reset, the lifting frame 713 moves upward to make the moving plate 716 move upward, at this time, the slot frame 802 moves to the right through the wedge-shaped groove 717 to reset, and the left slot frame 802 moves to the right through the installation rod 803 to limit the position The disk 809 moves to the right and resets, the wedge-shaped frame 816 resets upward under the action of the second spring 817, and the lifting frame 713 moves upward through the sliding rod 712 to move the annular slider 705 upward and reset. At this time, the fan blade 708 is rotated and reset to a vertical state. The lifting frame 713 moves upward to move the wedge-shaped block 720 upward, and the wedge-shaped block 720 moves upward to release the compression of the arc-shaped splints 911 on both sides. Move closer to each other, the arc-shaped plates 908 on both sides are in close contact with the circumferential wall of the rotating shaft 721 by the second return spring 909, and the rotating shaft 721 rotates to drive the arc-shaped plates 908 on both sides to rotate, and the arc-shaped plates 908 on both sides are rotated. The rotation passes the guide rod 907 to make the outer ring gear 904 rotate, the rotation of the outer ring gear 904 drives the first gear 906 on both sides to rotate, the first gear 906 on both sides rotates to make the inner gear 914 rotate, and the inner gear 914 rotates through the connecting block 913 rotates the annular plate 912, the annular plate 912 rotates to rotate the scraper 915, and the scraper 915 rotates to clean the outer wall of the filter housing 701. The water inside then enters the lower part of the filter housing 701 through the through holes in the lower part of the filter housing 701. At this time, the water output of the discharge pipe 805 increases accordingly, and the wedge-shaped block 720 moves downward to squeeze the arcs on both sides. The splint 911 makes the arc-shaped plates 908 on both sides away from the rotating shaft 721, so that the scraper 915 stops rotating, so as to facilitate the rapid extraction of the accumulated water in the water tank. The accumulated water in the water tank decreases accordingly. When the accumulated water surface of the water tank is lower than the annular limit ring 103, under the action of the third return spring 109, the annular floating plate 104 is moved downward by the pulling rope 110. At this time, the annular water baffle 101 is reset, and the water inlet hole 201 is opened at this time, and the water in the lower part of the water tank flows into the outer casing 2 through the water inlet hole 201, and the water in the water tank is extracted by this equipment. After that, the user takes out the equipment from the water tank, and removes the gas transmission equipment and the air intake pipe 5 The connection between the external pipe and the discharge pipe 805 can be released at the same time.

Example 3

On the basis of Embodiment 2, as shown in FIGS. 11-13 , the second gear 11 , the third gear 12 , the crushing frame 13 and the fourth gear 14 are further included, and the lower end of the second rotating shaft 905 is mounted with a second gear 11 . Gear 11, the left and right parts of the upper surface of the fixed frame 901 are rotatably mounted with third gears 12, the third gears 12 on the left and right sides are respectively meshed with the second gears 11 on the left and right sides, and the left and right sides of the fixed frame 901. A crushing rack 13 is installed in all parts of the crushing rack in a rotating manner. The upper part of the crushing rack 13 is located between the filter housing 701 and the annular water baffle 101. The lower part of the crushing rack 13 is installed with a fourth gear 14. The gears 14 mesh with the third gears 12 on the left and right sides, respectively.

The rotation of the first gear 906 causes the second gear 11 to rotate through the second shaft 905, the rotation of the second gears 11 on the left and right sides makes the third gears 12 on the left and right sides rotate, and the rotation of the third gears 12 on the left and right sides respectively makes the left and right sides rotate. The rotation of the fourth gears 14 on both sides, the rotation of the fourth gears 14 on the left and right sides respectively makes the crushing racks 13 on the left and right sides rotate rapidly, and the crushing racks 13 on the left and right sides rotate rapidly to carry out the cleaning of the scraper 915. Disperse, so that the dispersed sludge is mixed with water and discharged through the discharge pipe 805, so as to avoid the blockage caused by the continuous accumulation of sludge and hinder the extraction of accumulated water in the water tank.

The above descriptions are merely examples of embodiments of the present invention, and are not intended to limit the present invention. All equivalent replacements made within the principles of the present invention shall be included within the protection scope of the present invention. The content that is not described in detail in the present invention belongs to the prior art known to those skilled in the art.

Claims (9)

1. A negative pressure pump, comprising a mounting plate (1), an outer casing (2), a water inlet frame (202), an inner casing (203), a fixed plate (3), a sealing shell (4), an inlet The air pipe (5) and the air outlet pipe (6), the upper surface of the mounting plate (1) is provided with an outer casing (2), and the lower part of the outer side wall of the outer casing (2) is evenly provided with a plurality of water inlet holes (201) along its circumferential direction ), the upper part of the inner side wall of the outer casing (2) is evenly fixed with several water inlet frames (202) along its circumferential direction, and an inner casing (203) is arranged between the inner side walls of the several water inlet frames (202). The upper part of the outer side wall of the body (2) and the inner casing (203) is evenly provided with a plurality of water inlets (204) along the circumferential direction thereof, and the top of the outer casing (2) is provided with a fixed plate (3), and the fixed plate (3) The upper surface of the sealing shell (4) is connected with a sealing shell (4), the rear wall of the sealing shell (4) is embedded with an air inlet pipe (5), and the front wall of the sealing shell (4) is embedded with an air outlet pipe (6), which is characterized in that: it also includes a A rotating assembly (7), a water outlet conversion assembly (8), a sludge removal assembly (9) and a water blocking assembly (10), the inner upper surface of the sealing shell (4) is provided with a rotating assembly (7), and the rotating assembly (7) passes through The fixed plate (3) is rotatably connected with the outer casing (2) and the left wall of the inner casing (203) is provided with a water outlet conversion assembly (8), and the water outlet conversion assembly (8) is located above the water inlet hole (201). On the side, the water outlet conversion assembly (8) cooperates with the rotating assembly (7), the lower part of the rotating assembly (7) is provided with a sludge removal assembly (9), and the sludge removal assembly (9) is fixedly connected to the upper surface of the mounting plate (1), A water blocking component (10) is arranged in the gap between the sludge removal component (9) and the outer casing (2), and the upper part of the water blocking component (10) and the outer casing (2) is slidingly arranged. 2. A negative pressure pump according to claim 1, characterized in that: the rotating assembly (7) comprises a filter housing (701), a positioning disc (702), a fixed housing (703), a slide rail ( 704), annular slider (705), swing seat (706), first shaft (707), fan blade (708), disc (709), connecting rod (710), hinge plate (711), sliding rod ( 712), the lifting frame (713), the first return spring (714), the sealing sheet (715), the moving plate (716), the fixing rod (718), the sliding frame (719), the wedge block (720) and the water supply part, The filter housing (701) is arranged on the lower surface of the fixed plate (3), the middle of the upper surface of the filter housing (701) is fixed with a positioning plate (702), and the upper surface of the filter housing (701) is rotatably provided with a fixed The housing (703), the fixed housing (703) is located on the outer side of the positioning plate (702), and the inner surface of the fixed housing (703) is evenly connected with a plurality of slide rails (704) along its circumferential direction, and a plurality of slide rails ( 704) is slidably provided with an annular slider (705), the lower surface of the annular slider (705) is provided with a limiting groove, and the upper surface of the annular slider (705) is evenly fixed with a number of swing seats along its circumferential direction (706), the outer side wall of the fixed casing (703) is evenly connected to a plurality of first rotating shafts (707) in a rotational manner along its circumferential direction, and a plurality of first rotating shafts (707) and a plurality of sliding rails (704) are arranged in a staggered manner, A fan blade (708) is installed on one end of the first rotating shaft (707), a disk (709) is installed on the other end of the first rotating shaft (707), and a connecting rod ( 710), a hinge plate (711) is rotatably arranged between the upper and lower adjacent connecting rods (710) and the swing seat (706), and the upper surface of the positioning plate (702) is evenly slidable along its circumferential direction with several sliding plates. A rod (712), the upper ends of the plurality of sliding rods (712) are all slidably arranged in the limiting grooves of the annular slider (705), and a lifting frame (713) is provided between the lower ends of the plurality of sliding rods (712), The lift frame (713) is slidingly matched with the sludge removal assembly (9). A plurality of first return springs (714) are fixedly connected between the top of the lift frame (713) and the lower surface of the fixed plate (3). The return springs (714) are respectively wound around the outer sides of the plurality of sliding rods (712). The front and rear parts of the top of the lifting frame (713) are connected with sealing sheets (715). The sealing sheet (715) is made of elastic material. The side sealing sheets (715) are all slidingly matched with the outer side walls of the filter housing (701), the left and right parts of the lifting frame (713) are provided with moving plates (716), and the lower part of the moving plate (716) is provided with a wedge-shaped groove (717), a fixing rod (718) is installed on the upper right wall of the inner surface of the filter housing (701), a sliding frame (719) is connected to the upper left wall of the inner surface of the filter housing (701), and the lift frame (713) bottom middle A wedge-shaped block (720) is installed, a water supply component is fixed on the inner upper surface of the fixed casing (703), the water supply component cooperates with the sludge cleaning assembly, and the water supply component passes through the positioning plate (702) and the fixed plate (3) to be rotatably connected to it, The water supply component is fixedly connected to the lower part of the inner side wall of the filter housing (701). 3. A negative pressure pump as claimed in claim 2, characterized in that: the water supply component comprises a rotating shaft (721), a sealing disc (722) and a rotating water wheel (723), and the inside of the fixed casing (703) The upper surface is fixed with a rotating shaft (721), the rotating shaft (721) cooperates with the sludge cleaning assembly, the rotating shaft (721) passes through the positioning plate (702) and the fixed plate (3) to be rotatably connected with it, and the filter housing (701) A sealing disc (722) is installed on the lower part of the inner surface, the rotating shaft (721) passes through the sealing disc (722) and is rotatably connected with it. On the underside of the sealing disc (722). 4. A negative pressure pumping pump according to claim 3, characterized in that: the water outlet conversion assembly (8) comprises a hollow frame (801), a trough-shaped frame (802), a mounting rod (803), a water outlet pipe (801), and a hollow frame (801). 804), discharge pipe (805), hollow pipe (806), first connecting plate (807), limit plate (809), sliding plate (810), moving rod (811), baffle plate (812), Two connecting plates (813), a moving plate (814), a first spring (815), a wedge frame (816) and a second spring (817), the upper part of the rotating shaft (721) is covered with a hollow frame (801), the hollow frame The left and right walls of (801) are installed with slotted frames (802), the right slotted frame (802) and the fixing rod (718) are slidably arranged, and the left and right slotted frames (802) are respectively connected to the left and right two The wedge-shaped groove (717) on the side is matched, and the left wall of the groove-shaped frame (802) on the left side is fixed with a mounting rod (803), and the mounting rod (803) passes through the sliding frame (719) and the filter housing (701) to slide with it. Arrangement, the lower part of the left wall of the filter housing (701) is embedded with a water outlet pipe (804), the water outlet pipe (804) passes through the inner casing (203) and the outer casing (2), and the left wall of the water outlet pipe (804) is provided with The discharge pipe (805) and the upper part of the water discharge pipe (804) are embedded with a hollow pipe (806), and the right part of the hollow pipe (806) passes through the outer casing (2) and the inner casing (203), and the hollow pipe (806) The right part of the filter housing (701) is embedded in the left wall of the filter housing (701), the left part of the mounting rod (803) is located in the hollow tube (806), and the right part of the hollow tube (806) is fixed with a first connecting plate (807) , the installation rod (803) is slidably connected to it through the first connecting plate (807), the left part of the installation rod (803) is provided with a chute (808), and the left part of the installation rod (803) is sleeved with the limit plate (809) ), a sliding plate (810) is slidably arranged in the chute (808), a moving rod (811) is installed at the center of the left wall of the sliding plate (810), and the moving rod (811) passes through the left side of the installation rod (803). The left end of the moving rod (811) is installed with a baffle plate (812), the baffle plate (812) is located in the discharge pipe (805), and the left part of the hollow pipe (806) is fixed with a second connecting plate (813), the moving rod (811) is slidably connected to the second connecting plate (813) through the second connecting plate (813). A first spring (815) is fixedly connected between the right walls of the connecting plate (813), the first spring (815) is wound around the outside of the moving rod (811), and the left part of the hollow tube (806) is slidably provided with a wedge frame (816), the wedge-shaped frame (816) is located on the upper side of the limit plate (809), and two second springs (817) are fixedly connected between the wedge-shaped frame (816) and the outer side wall of the hollow tube (806). 5. The negative pressure pump according to claim 4, wherein the right end of the wedge-shaped frame (816) is longer than the left end. 6. A negative pressure pump according to claim 5, characterized in that: the sludge removal assembly (9) comprises a fixing frame (901), a mounting frame (902), a fixing frame (903), an outer gear ring ( 904), second shaft (905), first gear (906), guide rod (907), arc plate (908), second return spring (909), L-shaped rod (910), arc splint (911) ) and scraping parts, the fixing frame (901) is fixed on the upper surface of the mounting plate (1), the lifting frame (713) passes through the fixing frame (901) and is slidably connected to it, and the fixing frame (901) is located in the outer casing (2) The inner side of the filter housing (701) is connected with a mounting frame (902), the rotating shaft (721) passes through the mounting frame (902) and is rotatably connected with it, and the inner upper surface of the mounting frame (902) is fixed with a fixing frame (903) ), the inner bottom of the fixing frame (903) is rotatably installed with the outer gear ring (904) in the middle, and the left and right parts of the inner bottom of the fixing frame (903) are rotatably installed with a second rotating shaft (905), and the second rotating shaft (905 A first gear (906) is fixedly connected to the upper end of ), the first gears (906) on both sides are located outside the outer ring gear (904), and the first gears (906) on both sides are in phase with the outer ring gear (904). Meshing, guide rods (907) are fixedly connected to the two inner walls of the outer ring gear (904), and arc plates (908) are slidably provided between the two guide rods (907) on both sides. The rotating shaft (721) In contact with the arc-shaped plates (908) on both sides, two second return springs (909) are fixed between the arc-shaped plates (908) on both sides, and the second return springs (909) on both sides are respectively wound around L-shaped rods (910) are installed on the outer sides of the guide rods (907) on both sides and the outer walls of the arc-shaped plates (908) on both sides. The splint (911) is located on the upper side of the wedge-shaped block (720), and a scraping member is provided between the upper surface of the fixing frame (901) and the lower surface of the mounting frame (902), and the scraping member is connected to the first gears ( 906) are engaged. 7. A negative pressure pumping pump according to claim 6, characterized in that: the scraping component comprises an annular plate (912), a connecting block (913), an inner gear (914) and a scraper (915), The annular plate (912) is rotatably connected between the upper surface of the fixing frame (901) and the lower surface of the mounting frame (902), and a plurality of connecting blocks (913) are evenly connected to the inner side wall of the annular plate (912) along its circumferential direction. ), a ring gear (914) is fixed between the inner side walls of several connecting blocks (913), the first gears (906) on both sides are meshed with the ring gear (914), and the ring gear (912) The outer surface is evenly connected with several scrapers (915) along its circumferential direction, and the several scrapers (915) are all slidably matched with the filter housing (701). 8. The negative pressure pump according to claim 7, wherein the water blocking assembly (10) comprises an annular water blocking plate (101), an annular limiting ring (103), and an annular floating plate (104) , the first fixed plate (106), the second fixed plate (107), the annular fixed plate (108), the third return spring (109) and the pull rope (110), the upper surface of the mounting plate (1) is rotatably provided with The annular water baffle (101) is located between the outer casing (2) and the fixing frame (901), and the outer side wall of the annular water baffle (101) is evenly provided with a plurality of inlets along its circumferential direction. The material port (102), the upper part of the outer side wall of the outer casing (2) is fixedly connected with an annular limit ring (103), the upper part of the outer side wall of the outer casing (2) is slidably provided with an annular floating plate (104), and the annular floating plate ( 104) Located on the upper side of the annular limit ring (103), a groove (105) is opened on the top of the annular water baffle (101), and a plurality of first fixings are uniformly fixed in the groove (105) along its circumferential direction. Plate (106), a plurality of second fixing plates (107) are evenly slidable in the groove (105) along its circumferential direction, and annular fixing plates (107) are fixedly connected between the upper surfaces of the plurality of second fixing plates (107). 108), a third return spring (109) is connected between the adjacent first fixing plate (106) and the second fixing plate (107), and a pull rope (110) is connected to the side wall of the second fixing plate (107) , the upper end of the pulling rope (110) passes through the adjacent first fixing plate (106), the annular fixing plate (108) and the outer casing (2) in sequence, and the upper end of the pulling rope (110) is fixed with the annular floating plate (104) catch. 9. A negative pressure pump as claimed in claim 8, characterized in that: it further comprises a second gear (11), a third gear (12), a crushing frame (13) and a fourth gear (14) , a second gear (11) is installed on the lower end of the second rotating shaft (905), a third gear (12) is rotatably installed on the upper surface of the fixed frame (901), and the third gear (12) on both sides They are meshed with the second gears (11) on both sides respectively, and both parts of the fixed frame (901) are rotatably provided with a crushing rack (13), and the upper part of the crushing rack (13) is located at the filter housing (701) and Between the annular water baffles (101), a fourth gear (14) is installed on the lower part of the crushing frame (13), and the fourth gears (14) on both sides mesh with the third gears (12) on both sides respectively.

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