阅读说明：本技术 一种防堵式离心泵 (Anti-blocking centrifugal pump ) 是由 汪卫平 唐子一 李建新 黄文龙 汪渌 吴海洋 于 2021-08-30 设计创作，主要内容包括：一种防堵式离心泵,包括：基座、泵体、电机、传动箱；污水由进水导管进入至过滤筒中,经过滤筒中的弧形滤网过滤后进入至进水口处,由进水口进入至泵体中,电机在带动泵体中的叶轮轴转动时,叶轮轴通过齿轮连接带动中间轴转动,中间轴经底轴带动提升螺杆转动,提升螺杆转动时刮擦弧形滤网,有效防止杂物、沙石堵塞弧形滤网,由于提升螺杆的推动,将过滤筒中积存的杂物、沙石向上推动至收集罩中,当需要对杂物、泥沙进行清理时,仅需打开收集罩即可,简化操作流程,无需对进水口处的管路进行拆卸,大大提高了清理效率。(An anti-clogging centrifugal pump comprising: the device comprises a base, a pump body, a motor and a transmission case; sewage enters into the cartridge filter by the pipe of intaking, it is located to get into the water inlet after straining the arc filter screen in the section of thick bamboo, get into to the pump body by the water inlet in, when the motor is driving the impeller shaft rotation in the pump body, the impeller shaft passes through gear connection area countershaft rotation, the countershaft drives the lifting screw through the bottom shaft and rotates, scrape the arc filter screen when the lifting screw rotates, effectively prevent debris, gravel and sand blocks up the arc filter screen, because the promotion of lifting screw, the debris that store up in the cartridge filter, gravel and sand upwards promotes to collecting the cover, when needs are cleared up debris, silt, only need open and collect the cover can, simplify the operation flow, need not to dismantle the pipeline of water inlet department, the cleaning efficiency has been improved greatly.)

1. An anti-blocking centrifugal pump, comprising:

the device comprises a base, a pump body, a motor and a transmission case;

the pump body, the motor and the transmission case are all installed on the base, an impeller shaft is installed on the pump body, one end of the impeller shaft is provided with an impeller, the other end of the impeller shaft penetrates through the transmission case to be connected with an output shaft of the motor, an intermediate shaft is installed in the transmission case, the impeller shaft is connected with the intermediate shaft through a gear, the lower end of the intermediate shaft penetrates through the transmission case, a bottom shaft is installed on the base and is connected with the intermediate shaft through a gear;

be equipped with water inlet and delivery port on the pump body, water inlet department installs the cartridge filter, cartridge filter internally mounted has the ARC filter screen, form a cylindrical cavity structure between ARC filter screen and the cartridge filter inboard wall, cylindrical cavity structure's lateral part is connected with the pipe of intaking, the pipe connection of intaking is on the cartridge filter lateral wall, the cartridge filter upper end is fixed with the collection cover, cylindrical cavity structure internally mounted has lifting screw, the cartridge filter is worn out to the lifting screw lower extreme, the lifting screw lower extreme passes through the gear connection bottom shaft.

2. The centrifugal pump of claim 1, wherein the water inlet and the water inlet conduit are located on two sides of the arc-shaped screen.

3. The anti-blocking centrifugal pump according to claim 1, wherein the lower end of the filter cartridge and the upper part of the collecting cover are respectively fixed with a mounting cylinder, a supporting seat is respectively slidably mounted inside each mounting cylinder, the lifting screw is rotatably mounted on the supporting seat, two chucks are arranged on the upper part of the lifting screw, a synchronizing plate is arranged between the two chucks, the synchronizing plate is rotatably mounted on the lifting screw, a lifting rod is fixed on the synchronizing plate, the upper end of the lifting rod penetrates out of the collecting cover, a limiting plug is fixed on the upper end of the lifting rod, and an extrusion spring is arranged between the limiting plug and the collecting cover.

4. The anti-blocking centrifugal pump according to claim 3, wherein a separation plate is arranged between the upper end of the arc-shaped filter screen and the filter cartridge support, the separation plate is positioned at the upper part of the water inlet, a buffering inlet is arranged on the separation plate, the lower end of the lifting rod penetrates through the buffering inlet, and a sealing plug is fixed at the lower end of the lifting rod.

5. The anti-blocking centrifugal pump according to claim 3, wherein the collection cover upper portion is provided with a damping cylinder, the limiting plug slides inside the damping cylinder, a ventilation end cap is fixed to the upper end of the damping cylinder, a gas port is formed in the side portion of the ventilation end cap, a dust screen is installed at the gas port, a positioning shaft is installed on the gas port upper portion in a rotating mode, a sealing plate is installed on the positioning shaft in a rotating mode, a damping hole is formed in the sealing plate, and the sealing plate is located inside the ventilation end cap.

6. An anti-blocking centrifugal pump according to claim 3, wherein an electric push rod is fixed on the collection cover, a closing plate is fixed at the output end of the electric push rod, the closing plate is positioned at the upper part of the filter cartridge, the lifting screw rod slides through the closing plate, and a sewage discharge bin door is arranged on the side part of the collection cover and the lower part of the filter cartridge.

7. The centrifugal pump of claim 3, wherein the inner sidewall of the mounting cylinder has a guide groove along the axial direction, and the support seat has an outer protrusion slidably disposed in the guide groove.

Technical Field

The invention relates to the technical field of centrifugal pumps, in particular to an anti-blocking centrifugal pump.

Background

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.

When the centrifugal pump is used for carrying the sewage that contains impurity, for avoiding great debris, gravel in the sewage to enter into the pump body inside, need set up the filter screen in centrifugal pump body water inlet department, however when centrifugal pump live time is longer, gravel, debris can block up the filter screen, and then cause the centrifugal pump idle running, and then cause the mechanical seal damage of centrifugal pump, influence the life of centrifugal pump. When the filter screen of centrifugal pump water inlet took place to block up among the prior art, need the manual work to clear up the filter screen, and need dismantle complex operation to the pipeline of centrifugal pump water inlet department connection.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, when a filter screen at a water inlet of a centrifugal pump is blocked, the filter screen needs to be cleaned manually, a pipeline connected with the water inlet of the centrifugal pump needs to be disassembled, and the operation is complex, and provides an anti-blocking type centrifugal pump.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

an anti-clogging centrifugal pump comprising:

the device comprises a base, a pump body, a motor and a transmission case;

the pump body, the motor and the transmission case are all installed on the base, an impeller shaft is installed on the pump body, one end of the impeller shaft is provided with an impeller, the other end of the impeller shaft penetrates through the transmission case to be connected with an output shaft of the motor, an intermediate shaft is installed in the transmission case, the impeller shaft is connected with the intermediate shaft through a gear, the lower end of the intermediate shaft penetrates through the transmission case, a bottom shaft is installed on the base and is connected with the intermediate shaft through a gear;

be equipped with water inlet and delivery port on the pump body, water inlet department installs the cartridge filter, cartridge filter internally mounted has the ARC filter screen, form a cylindrical cavity structure between ARC filter screen and the cartridge filter inboard wall, cylindrical cavity structure's lateral part is connected with the pipe of intaking, the pipe connection of intaking is on the cartridge filter lateral wall, the cartridge filter upper end is fixed with the collection cover, cylindrical cavity structure internally mounted has lifting screw, the cartridge filter is worn out to the lifting screw lower extreme, the lifting screw lower extreme passes through the gear connection bottom shaft.

Furthermore, the water inlet and the water inlet conduit are respectively positioned at two sides of the arc-shaped filter screen.

Further, cartridge filter lower extreme and collection cover the top do not be fixed with an installation section of thick bamboo, and the inside slidable mounting respectively of every installation section of thick bamboo has the supporting seat, lifting screw rotates and installs on the supporting seat, lifting screw upper portion is equipped with two (holding) chucks, is equipped with synchronous board between two (holding) chucks, synchronous board rotates and installs on lifting screw, be fixed with the lifter on the synchronous board, the collection cover is worn out to the lifter upper end, the lifter upper end is fixed with spacing stopper, be equipped with extrusion spring between spacing stopper and the collection cover.

Furthermore, be equipped with the division board between arc filter screen upper end and the cartridge filter support, the division board is located water inlet upper portion, be equipped with the buffering entry on the division board, the lifter lower extreme passes the buffering entry, the lifter lower extreme is fixed with the sealing plug.

Further, it is equipped with a damping section of thick bamboo to collect cover upper portion, stopper slides and is located inside a damping section of thick bamboo, a damping section of thick bamboo upper end is fixed with the end cap of taking a breath, the end cap lateral part of taking a breath is equipped with the gas port, gas port department installs the dust screen, gas port upper portion is rotated and is installed the location axle, the epaxial shrouding of installing that rotates of location, be equipped with the damping hole on the shrouding, the shrouding is located inside the end cap of taking a breath.

Further, collect and cover and be fixed with electric putter, the electric putter output is fixed with the closing plate, the closing plate is located cartridge filter upper portion, the lifting screw slides and passes the closing plate, collect and cover lateral part and cartridge filter lower part and all be equipped with blowdown door.

Furthermore, the inner side wall of the installation cylinder is provided with a guide groove along the axis direction, the support seat is provided with an outer convex block, and the outer convex block is slidably positioned in the guide groove.

The invention has the beneficial effects that:

the sewage filter has a simple structure, sewage enters the filter cylinder from the water inlet guide pipe, enters the water inlet after being filtered by the arc-shaped filter screen in the filter cylinder, enters the pump body from the water inlet, the motor drives the impeller shaft in the pump body to rotate, the impeller shaft is connected with the intermediate shaft through the gear to rotate, the intermediate shaft drives the lifting screw to rotate through the bottom shaft, the arc-shaped filter screen is scraped when the lifting screw rotates, the arc-shaped filter screen is effectively prevented from being blocked by sundries and sand stones, the sundries and the sand stones accumulated in the filter cylinder are upwards pushed into the collecting cover due to the pushing of the lifting screw, when the sundries and the sand stones need to be cleaned, the collecting cover is only required to be opened, the operation flow is simplified, the pipeline at the water inlet does not need to be disassembled, and the cleaning efficiency is greatly improved.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a block diagram of the filter cartridge of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2 in accordance with the present invention;

FIG. 4 is a view of the mounting barrel of the present invention;

FIG. 5 is a cross-sectional view of the filter cartridge of the present invention;

in the figure: 1. a base; 2. a pump body; 3. a motor; 4. a transmission case; 12. an impeller shaft; 13. an impeller; 14. an intermediate shaft; 15. a bottom shaft; 21. a water inlet; 22. a water outlet; 23. a filter cartridge; 24. an arc-shaped filter screen; 25. a water inlet conduit; 26. a collection hood; 27. lifting the screw; 31. mounting the cylinder; 32. a supporting seat; 33. a chuck; 34. a synchronization board; 35. a lifting rod; 36. a limiting plug; 37. a compression spring; 38. a guide groove; 39. an outer bump; 41. a separator plate; 42. a buffer inlet; 43. a sealing plug; 51. a damping cylinder; 52. a ventilation end cap; 53. a gas port; 54. a dust screen; 55. positioning the shaft; 56. closing the plate; 57. a damping hole; 61. an electric push rod; 62. a closing plate; 63. a blowdown bin gate; 301. a buffer tank; 302. a driven bevel gear; 303. a driving bevel gear; 304. a buffer spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

Example 1

As shown in fig. 1, an anti-clogging centrifugal pump includes:

the device comprises a base 1, a pump body 2, a motor 3 and a transmission case 4;

the pump body 2, the motor 3 and the transmission case 4 are all installed on the base 1, the pump body 2 is provided with an impeller shaft 12, one end of the impeller shaft 12 is provided with an impeller 13, the other end of the impeller shaft passes through the transmission case 4 to be connected with an output shaft of the motor 3, an intermediate shaft 14 is installed in the transmission case 4, the impeller shaft 12 is connected with the intermediate shaft 14 through a gear, the lower end of the intermediate shaft 14 penetrates through the transmission case 4, the base 1 is provided with a bottom shaft 15, and the bottom shaft 15 is connected with the intermediate shaft 14 through the gear;

be equipped with water inlet 21 and delivery port 22 on the pump body 2, water inlet 21 department installs cartridge filter 23, cartridge filter 23 internally mounted has curved filter 24, curved filter 24 forms a cylindrical cavity structure with the inboard lateral wall of cartridge filter 23 within a definite time, cylindrical cavity structure's lateral part is connected with into water pipe 25, it connects on cartridge filter 23 lateral wall to intake water pipe 25, cartridge filter 23 upper end is fixed with collects cover 26, cylindrical cavity structure internally mounted has lifting screw 27, lifting screw 27 lower extreme wears out cartridge filter 23, lifting screw 27 lower extreme passes through gear connection bottom shaft 15.

The water inlet 21 and the water inlet conduit 25 are respectively positioned at two sides of the arc-shaped filter screen 24.

The sewage enters the filter cartridge 23 from the water inlet pipe 25, the sewage enters the water inlet 21 after being filtered by the arc-shaped filter screen 24 in the filter cartridge 23, the sewage enters the pump body 2 from the water inlet 21, when the motor 3 drives the impeller shaft 12 in the pump body 2 to rotate, the impeller shaft 12 drives the intermediate shaft 14 to rotate through gear connection, the intermediate shaft 14 drives the lifting screw 27 to rotate through the bottom shaft 15, the arc-shaped filter screen 24 is scraped when the lifting screw 27 rotates, the arc-shaped filter screen 24 is effectively prevented from being blocked by sundries and sand stones, the sundries and the sand stones accumulated in the filter cartridge 23 are upwards pushed to the collecting cover 26 due to the pushing of the lifting screw 27, when the sundries and the sand stones are required to be cleaned, only the collecting cover 26 needs to be opened, the operation flow is simplified, the pipeline at the water inlet 21 is not required to be disassembled, and the cleaning efficiency is greatly improved.

Example 2

Based on embodiment 1, as shown in fig. 1, 2, 4 and 5, when the motor 3 drives the impeller shaft 12 to rotate, the lifting screw 27 is driven to rotate by the intermediate shaft 14 and the bottom shaft 15, in this process, when the centrifugal pump is in operation, the lifting screw 27 always rotates, and when the arc-shaped filter screen 24 is not blocked, the lifting screw 27 rotates to increase the load of the motor 3, which causes energy waste, therefore, the mounting cylinders 31 are respectively fixed at the lower end of the filter cylinder 23 and the upper portion of the collecting cover 26, the supporting seat 32 is respectively slidably mounted inside each mounting cylinder 31, the lifting screw 27 is rotatably mounted on the supporting seat 32, the two chucks 33 are arranged at the upper portion of the lifting screw 27, the synchronizing plate 34 is arranged between the two chucks 33, the synchronizing plate 34 is rotatably mounted on the lifting screw 27, the lifting rod 35 is fixed on the synchronizing plate 34, the upper end of the lifting rod 35 penetrates through the collecting cover 26, the upper end of the lifting rod 35 is fixed with the limit plug 36, a compression spring 37 is arranged between the limiting plug 36 and the collecting cover 26.

The inner side wall of the installation cylinder 31 is provided with a guide groove 38 along the axial direction, the supporting seat 32 is provided with an outer convex block 39, and the outer convex block 39 is slidably positioned in the guide groove 38.

The lower end of the lifting screw 27 is provided with a buffer groove 301 along the axial direction, a driven bevel gear 302 is slidably mounted on the buffer groove 301, the driven bevel gear 302 is sleeved on the lifting screw 27 in a sleeved mode, a driving bevel gear 303 is mounted on the bottom shaft 15, the driven bevel gear 302 can be meshed with the driving bevel gear 303 when moving downwards, and a buffer spring 304 is arranged between the driven bevel gear 302 and the supporting seat 32.

When the arc filter screen 24 is blocked, the lifting rod 35 is pressed, the lifting rod 35 drives the synchronous plate 34 to move downwards together, the synchronous plate 34 and the lifting screw 27 move downwards together due to the fact that the synchronous plate 34 is limited by the chuck 33 on the lifting screw 27, when the lifting screw 27 moves downwards, the driven bevel gear 302 at the lower end of the synchronous plate is in contact with the driving bevel gear 303 on the bottom shaft 15, the buffering spring 304 is arranged to buffer the meshing of the driven bevel gear 302 and the driving bevel gear 303, the driven bevel gear 302 and the driving bevel gear 303 are prevented from being quickly separated after being meshed, the bottom shaft 15 drives the lifting screw 27 to rotate, when the arc filter screen 24 is not blocked, the limiting plug 36 and the lifting rod 35 move upwards together under the action of the extruding spring 37, the synchronous plate and the lifting screw 27 are driven to move upwards together, the gear at the lower end of the lifting screw 27 is separated from the gear on the bottom shaft 15, and the lifting screw 27 is prevented from rotating, the load of the motor 3 is reduced.

Example 3

On the basis of embodiment 2, as shown in fig. 1, 2, 4 and 5, a partition plate 41 is arranged between the upper end of the arc-shaped filter screen 24 and the filter cartridge 23, the partition plate 41 is positioned above the water inlet 21, a buffer inlet 42 is arranged on the partition plate 41, the lower end of the lifting rod 35 passes through the buffer inlet 42, and a sealing plug 43 is fixed at the lower end of the lifting rod 35.

When arc filter screen 24 takes place to block up, the inside impeller of the pump body 2 rotates and produces and inhales the pressure, because arc filter screen 24 is obstructed to cause the inside increase of inhaling of the pump body 2, and then can make sealing plug 43 downstream and cushion entry 42 separation, sealing plug 43 drives lifter 35 and together moves down, and then drives lifting screw 27 and descends to make the gear contact bottom shaft 15 gear of lifting screw 27 lower extreme, avoided the manual operation of pressing lifter 35.

Example 4

On the basis of embodiment 2, as shown in fig. 1 to 5, after the lifting rod 35 is moved downwards, if the lifting rod 35 stops exerting an external force, the lifting rod 35 can be quickly reset under the action of the extrusion spring 37, so that the lifting screw 27 has a short time to scrape the arc-shaped filter screen 24, which affects the cleaning effect, through the damping cylinder 51 arranged on the upper portion of the collection cover 26, the limit plug 36 is slidably located inside the damping cylinder 51, the ventilation end cap 52 is fixed on the upper end of the damping cylinder 51, the air port 53 is arranged on the side portion of the ventilation end cap 52, the dust screen 54 is installed at the air port 53, the positioning shaft 55 is rotatably installed on the upper portion of the air port 53, the sealing plate 56 is rotatably installed on the positioning shaft 55, the damping hole 57 is arranged on the sealing plate 56, and the sealing plate 56 is located inside the ventilation end cap 52.

When the lifting rod 35 moves downwards, the limiting plug 36 is driven to move downwards in the damping cylinder 51, when the limiting plug 36 moves downwards, the air pressure in the damping cylinder 51 at the upper part of the limiting plug 36 is reduced, at the moment, in order to ensure the air pressure balance, the external air can push the sealing plate 56 to deflect, at the moment, the external air can quickly enter the damping cylinder 51, so that the lifting rod 35 quickly descends, when the lifting rod 35 moves upwards, the limiting plug 36 moves upwards in the damping cylinder 51, so that the air at the upper part of the limiting plug 36 is compressed, the pressure intensity at the upper part of the limiting plug 36 is increased, the sealing plate 56 is closed at the air port 53 under the action of the air pressure, the high-pressure air at the upper part of the limiting plug 36 needs to be slowly discharged from the damping hole 57, so that the lifting rod 36 slowly rises, and because of the lifting rod 35 slowly rises, a longer meshing time can be provided for the gear at the lower end of the lifting screw 27 and the gear on the bottom shaft 15, ensuring that the lifting screw 27 has one rotation cycle.

Example 5

Based on the embodiment 2, as shown in fig. 2, an electric push rod 61 is fixed on the collection cover 26, a closing plate 62 is fixed at the output end of the electric push rod 61, the closing plate 62 is located at the upper part of the filter cartridge 23, the lifting screw 27 slides through the closing plate 62, and a sewage discharge bin door 63 is arranged at the side part of the collection cover 26 and the lower part of the filter cartridge 23.

When sundries and sand stones in the collecting cover 26 need to be cleaned, the electric push rod 61 extends out to push the closing plate 62 to cover and buckle the upper end of the filter cylinder 23, so that the upper end of the filter cylinder 23 is closed, the sewage discharge bin door 63 at the side part of the collecting cover 26 is opened at the moment, the sundries and the sand stones accumulated in the collecting cover 26 can be discharged, and the external air pressure can be prevented from entering the filter cylinder 23, when the sundries and the sand stones in the filter cylinder 23 are accumulated more, the motor 3 is closed, the sewage discharge bin door 63 at the lower part of the filter cylinder 23 is opened, the lifting screw 27 is rotated in the reverse direction manually, and the lifting screw 27 is used for pushing the sand stones in the filter cylinder 23 to be discharged.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.