A sewage pump protection device

Abstract

The present invention relates to the technical field of sewage pumps, and discloses a sewage pump protection device, which includes a pump body, a bracket, a water inlet pipe and a water outlet pipe, and further includes: a protection component, which is arranged at one end of the water inlet pipe. The protection component includes a fixed block fixedly connected to one end of the water inlet pipe. A water passing cavity and a plurality of partition cavities communicated with it are respectively formed inside the fixed block. The water passing cavity is communicated with the water inlet pipe. An outer sleeve block is slidably connected to the surface of the fixed block. A plurality of filter grids adapted to the partition cavities are arranged near both ends of the surface of the outer sleeve block. A plurality of partition grids are fixedly connected to the surface of the outer sleeve block. Through the setting of two partition cavities communicated with the water passing cavity in the present invention, only one partition cavity is used at a time. When one side of the partition cavity is blocked, it is timely switched to the other side of the partition cavity to be communicated with the water passing cavity, stably maintaining the sewage discharge effect, and at the same time collecting sundries to avoid re-blocking.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage pumps, and more specifically, it relates to a sewage pump protection device. Background Art

[0002] A sewage pump is a device used to pump and drain sewage and wastewater. Its main function is to pump sewage, wastewater, etc. from one place to another for treatment or discharge. Due to factors such as the working environment of the sewage pump and the properties of the pumped liquid, it is often necessary to protect it to avoid blockage of the pump body and affect the sewage discharge effect.

[0003] For the existing protection devices of sewage pumps, most of them place the filter screen at the suction port of the pump body. When the sewage pump is working normally, the water sucked in is filtered by the filter screen, solving the problem of blockage of the internal flow channel of the sewage pump. However, although the filter screen can filter debris, due to the suction force generated at the suction port of the sewage pump, the debris will be tightly sucked onto the surface of the filter screen, resulting in blockage of the suction port, reduction of the pumping pressure, and insufficient sewage being sucked into the pump body, making it difficult for the sewage pump to stably maintain the sewage discharge effect and requiring frequent shutdown for treatment. Although there are devices that can scrape the debris on the surface of the filter screen during operation, the scraped debris still floats near the water pump and continues to adhere to the surface of the filter screen with the water flow, having an adverse impact on the operation of the sewage pump. Summary of the Invention

[0004] The present invention provides a sewage pump protection device to solve the technical problems raised in the above background art.

[0005] The present invention provides a sewage pump protection device, which includes a pump body, a bracket, a water inlet pipe, and a water outlet pipe, and further includes:

[0006] A protection component, which is arranged at one end of the water inlet pipe. The protection component includes a fixed block fixedly connected to one end of the water inlet pipe. A water passing cavity and a number of partition cavities communicating with it are respectively opened inside the fixed block. The water passing cavity is communicated with the water inlet pipe. An outer sleeve block is slidably connected to the surface of the fixed block. A number of filter grids adapted to the partition cavities are arranged near both ends of the surface of the outer sleeve block. A number of partition grids are fixedly connected to the surface of the outer sleeve block;

[0007] A switching component, which is arranged at the connection position between the water passing cavity and the partition cavity. The switching component includes a rotating shaft rotatably connected inside the fixed block. A partition plate adapted to the partition cavity is fixedly connected to the surface of the rotating shaft. The rotating shaft is connected to the outer sleeve block through a connection component;

[0008] The top of the fixed block is fixedly connected with a top cover. A groove is formed between the fixed block and the top cover. A communication hole communicating with the partition cavity is formed in the groove. A communication pipe is fixedly connected to the surface of the top cover. One end of the communication pipe is connected to the external air, and the other end is communicated with the inside of the groove. The connecting component is located in the groove. Collection components adapted to the outer sleeve blocks are arranged on both sides of the fixed block.

[0009] Preferably, the connecting component includes an arc-shaped block fixedly connected to the surface of the rotating shaft. Tooth grooves are arranged on the surface of the arc-shaped block, and the arc-shaped block is located in the groove. A connecting gear is rotatably connected to the bottom of the groove. The connecting gear meshes with the tooth grooves on the surface of the arc-shaped block. A rack is formed on the surface of the outer sleeve block, and the rack meshes with the connecting gear.

[0010] Preferably, a baffle adapted to the communication hole is fixedly connected to the side of the arc-shaped block away from the tooth groove.

[0011] Preferably, an adjusting component for facilitating the switching of the partition is further included. The adjusting component includes a rotating frame rotatably connected in the fixed block. An activity groove is formed in the fixed block. The rotating frame rotates on the inner wall of the activity groove. Both ends of the rotating frame are respectively arranged on both sides of the rotating shaft. Positioning rings adapted to the partition cavity are fixedly connected to both ends of the rotating rod frame. A plurality of magnetic blocks are installed in the positioning rings. The partition is a plate made of a material with magnetization characteristics. Two air rods are fixedly connected in the fixed block. A square plate is fixedly connected to the output end of the air rod. A push plate is fixedly connected to one side of the square plate. Adjusting blocks adapted to the push plate are fixedly connected to both sides of the rotating frame.

[0012] Preferably, the air rods are filled with conventional air, and the output ends of the air rods are not at the maximum stroke.

[0013] Preferably, a plurality of sealing curtains are fixedly connected to the inner wall of the activity groove, and the sealing curtains are fixedly connected to the rotating frame.

[0014] Preferably, the collection component includes collection blocks fixedly connected to both sides of the fixed block. An activity cavity and a collection cavity are respectively formed in the collection blocks. The activity cavity and the collection cavity communicate with each other. Two positioning shafts are rotatably connected to the inner wall of the activity cavity. A plurality of clamping blocks are fixedly connected to the surface of the positioning shafts. The positioning shafts are connected to the collection blocks through torsion springs.

[0015] Preferably, a sliding groove is formed in the inner wall of the activity cavity, and a pushing plate is slidably connected through the sliding groove. A connecting block is fixedly connected to one side of the pushing plate. The connecting block is connected to the collection block through a tension spring.

[0016] Preferably, a gap adapted to the connecting block exists between the two positioning shafts.

[0017] Preferably, a sealing cover is arranged at the top of the collecting block near the upper position of the collecting cavity.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. Through the arrangement of two partition cavities communicated with the water passing cavity, only one partition cavity is used at a time. When one side partition cavity is blocked, it is timely switched to the other side partition cavity to communicate with the water passing cavity, and in cooperation with the rotatable outer sleeve block, the filter grid is timely switched, so as to stably maintain the sewage discharge effect of the sewage pump, avoid the problem of frequent shutdown for treatment, and improve the sewage discharge efficiency to a certain extent.

[0020] 2. By setting the collecting component, when the outer sleeve block rotates, the blocked filter grid is inserted into the collecting block to prevent the sundries on the surface of the filter grid from floating into the surrounding water and further affecting the water pumping effect of the water pump. At the same time, when the outer sleeve block rotates in reverse and the filter grid is pulled out from the collecting block, the sundries on the surface of the filter grid are peeled off by several clamping blocks, once again avoiding the problem that the sundries enter the surrounding water and cause the pump body to be blocked by the sundries for the second time, and improving the protection effect. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the exploded view of the fixing block and the outer sleeve block of the present invention;

[0023] Figure 3 is the schematic diagram of the bottom structure of the top cover of the present invention;

[0024] Figure 4 is the sectional view of the internal structure of the fixing block of the present invention;

[0025] Figure 5 is the top view sectional view of the internal structure of the fixing block of the present invention;

[0026] Figure 6 is the present invention Figure 5 the enlarged view of A in;

[0027] Figure 7 is the schematic diagram of the collecting component of the present invention;

[0028] Figure 8 is the schematic diagram of the state when the outer sleeve block is completely inserted into the collecting block of the present invention;

[0029] Figure 9 is the schematic diagram showing the cooperation relationship between the push plate and the clamping block alone of the present invention.

[0030] In the figure: 1. Pump body; 11. Bracket; 12. Water inlet pipe; 13. Water outlet pipe; 2. Fixed block; 21. Top cover; 211. Connecting pipe; 22. Outer sleeve block; 221. Filter grid; 222. Rack; 223. Partition grid; 3. Water passing cavity; 31. Partition cavity; 32. Rotating shaft; 321. Partition plate; 322. Arc-shaped block; 323. Baffle; 324. Connecting gear; 325. Connecting hole; 33. Air rod; 331. Square plate; 332. Pushing plate; 34. Rotating frame; 341. Positioning ring; 342. Adjusting block; 343. Sealing curtain; 4. Collection block; 41. Moving cavity; 411. Chute; 412. Pushing plate; 413. Connecting block; 414. Tension spring; 42. Collection cavity; 43. Positioning shaft; 431. Clamping block; 432. Torsion spring; 44. Sealing cover. Detailed implementation mode

[0031] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0032] In one embodiment of the present invention, a sewage pump protection device is disclosed, as Figures 1-9 shown, including: a pump body 1, a bracket 11, a water inlet pipe 12, and a water outlet pipe 13. The bracket 11 is fixed to the bottom of the pump body 1, and the water inlet pipe 12 and the water outlet pipe 13 are respectively connected to the surface of the pump body 1. Water is pumped through the water inlet pipe 12, and water is drained through the water outlet pipe 13. It further includes: a protection component, arranged at one end of the water inlet pipe 12 for water inlet protection to prevent sundries from entering the pump body 1. The protection component includes a fixed block 2 fixedly connected to one end of the water inlet pipe 12. The fixed block 2 is circular, and a water passing cavity 3 and a plurality of partition cavities 31 communicated with it are respectively formed inside the fixed block 2. In this article, two partition cavities 31 are provided, and the partition cavities 31 penetrate the fixed block 2, and their openings are arranged on the surface of the fixed block 2 for water inlet. The water passing cavity 3 is communicated with the water inlet pipe 12. An outer sleeve block 22 is slidably connected to the surface of the fixed block 2. A plurality of filter grids 221 adapted to the partition cavities 31 are arranged near both ends of the surface of the outer sleeve block 22. When the filter grids 221 are located at the outlets of the partition cavities 31, they protect and block the incoming water to prevent sundries from entering during the water absorption process. A plurality of partition grids 223 are fixedly connected to the surface of the outer sleeve block 22. Specifically, the partition grids 223 are arranged on the surface of the outer sleeve block 22 and are located between the two filter grids 221 on both sides, for blocking the two filter grids 221 on both sides to prevent sundries on the surface of one group of filter grids 221 from moving to the surface of the other group of filter grids 221.

[0033] The switching component is arranged at the connecting position between the water passing cavity 3 and the partition cavity 31. The switching component includes a rotating shaft 32 rotatably connected in the fixed block 2. A partition plate 321 adapted to the partition cavity 31 is fixedly connected to the surface of the rotating shaft 32. The partition plate 321 can completely block one of the partition cavities 31, so that the water passing cavity 3 is only connected to the other partition cavity 31. Water is pumped through a single partition cavity 31, which is the normal working state. A sealing gasket can be arranged at the contact position between the partition plate 321 and the partition cavity 31 to improve the sealing performance of the partition cavity 31. The rotating shaft 32 is connected to the outer sleeve block 22 through a connecting component. The rotation of the rotating shaft 32 can drive the outer sleeve block 22 to move synchronously. The top of the fixed block 2 is fixedly connected with a top cover 21. The outer sleeve block 22 is slidably limited at the bottom of the top cover 21. A groove is formed between the fixed block 2 and the top cover 21. A communication hole 325 communicating with the partition cavity 31 is formed in the groove. There are two communication holes 325, which are respectively communicated to the two partition cavities 31. A communication pipe 211 is fixedly connected to the surface of the top cover 21. One end of the communication pipe 211 is connected to the external air, and the other end is communicated with the inside of the groove. The connecting component is located in the groove. Collection components adapted to the outer sleeve block 22 are arranged on both sides of the fixed block 2.

[0034] Specifically, the pump body 1 is placed in the sewage to be pumped out, so that its water inlet pipe 12 is immersed in the water, and the communication pipe 211 extending from the surface of the top cover 21 is placed in the external air to ensure that the inside of the groove is communicated with the external air and the air pressure is the same as the external air pressure. At this time, the partition plate 321 is on the inner wall of one of the partition cavities 31 and blocks it, and the external opening of the partition cavity 31 is blocked by the outer sleeve block 22. The water passing cavity 3 is communicated with the other partition cavity 31. The opening of the partition cavity 31 is blocked by the filter grid 221 on the surface of the outer sleeve block 22. By turning on the pump body 1 to pump water, water enters through the partition cavity 31 with the opening unblocked, so as to pump and transport the sewage. When the sewage is difficult to enter due to sundries blocking the surface of the filter grid 221, since the pump body 1 is continuously working, a negative pressure suction force is generated in the water inlet pipe 12, and the amount of water entering from the partition cavity 31 gradually decreases, resulting in the gradual decrease of the pressure in the partition cavity 31 and the water passing cavity 3. For the other partition cavity 31 blocked by the partition plate 321, since it is communicated with the inside of the groove through the communication hole 325, and the groove is connected to the external air through the communication pipe 211, the pressure in the blocked partition cavity 31 is at normal atmospheric pressure. Due to the continuous decrease of the pressure in the other partition cavity 31 and the water passing cavity 3, under the action of the atmospheric pressure, the air pressure in the blocked partition cavity 31 will push open the partition plate 321 and drive the rotating shaft 32 to rotate. The rotating shaft 32 drives the outer sleeve block 22 to move through the connecting component, so that the filter grid 221 at one end of the outer sleeve block 22 moves to the opening of the blocked partition cavity 31, and the filter grid 221 blocked by sundries at the other end moves into the collection component. While completing the switching of the partition plate 321 and making the pump body 1 work normally, the sundries will also be collected by the collection component, avoiding the sundries floating in the water and blocking the filter grid 221 again.

[0035] As shown Figure 2 in the figure, in this embodiment, the connecting component includes an arc-shaped block 322 fixedly connected to the surface of the rotating shaft 32. The surface of the arc-shaped block 322 is provided with tooth grooves, and the arc-shaped block 322 is located in the groove. A connecting gear 324 is rotatably connected to the bottom of the groove. The connecting gear 324 meshes with the tooth grooves on the surface of the arc-shaped block 322. A rack 222 is formed on the surface of the outer sleeve block 22, and the rack 222 meshes with the connecting gear 324.

[0036] Specifically, when the partition 321 rotates to drive the rotating shaft 32 to rotate synchronously, the arc-shaped block 322 makes a circular motion along the rotating shaft 32 in the groove, thereby causing the connecting gear 324 that cooperates with it to rotate, so that the connecting gear 324 drives the rack 222 to move, and further enables the outer sleeve block 22 to move on the surface of the fixed block 2, thereby synchronously completing the switching of the filter grids 221 on both sides of the outer sleeve block 22.

[0037] It should be noted that in the normal state of the filter grids 221 on both sides of the outer sleeve block 22, one side of the filter grid 221 is inserted into the collection component, and the other side of the filter grid 221 is at the opening of one of the partition chambers 31 on the surface of the fixed block 2 to block sundries. When switching, the filter grid 221 located in the collection component is moved out to the opening of the other partition chamber 31, and the blocked filter grid 221 is inserted into the collection component to collect sundries.

[0038] Furthermore, in this embodiment, a baffle 323 adapted to the communication hole 325 is fixedly connected to the side of the arc-shaped block 322 away from the tooth groove. There are two baffles 323, corresponding to the two communication holes 325 respectively. When one baffle 323 blocks one communication hole 325, the other baffle 323 does not block the other communication hole 325. Furthermore, it is ensured that when the partition 321 blocks one of the partition chambers 31, the inside of this partition chamber 31 can ensure air pressure balance with the outside through the communication hole 325, while for the other partition chamber 31 through which sewage passes, its communication hole 325 is blocked by the baffle 323 and is not connected to the outside air, facilitating the formation of negative pressure inside it to pump water.

[0039] As Figure 4 , Figure 5 and Figure 6As shown, in this embodiment, it further includes an adjusting component for facilitating the switching of the partition plate 321. The adjusting component includes a rotating frame 34 rotatably connected to the fixed block 2. An activity groove is formed in the fixed block 2, and the rotating frame 34 rotates on the inner wall of the activity groove. Both ends of the rotating frame 34 are respectively arranged on both sides of the rotating shaft 32, and both ends thereof are respectively located in two partition chambers 31. A positioning ring 341 adapted to the partition chamber 31 is fixedly connected to both ends of the rotating rod frame. The inner diameter of the positioning ring 341 is adapted to the inner diameter of the partition chamber 31. A plurality of magnetic blocks are installed in the positioning ring 341. The partition plate 321 is a plate made of a material with magnetization characteristics. The partition plate 321 can be magnetically adsorbed on the surface of the positioning ring 341. When the positioning ring 341 on one side adsorbs the partition plate 321, the rotating frame 34 where the positioning ring 341 on this side is located will be tightly attached to the surface of the rotating shaft 32, thereby stabilizing the partition plate 321, while the positioning ring 341 on the other side will move away from the surface of the rotating shaft 32 along with the rotating frame 34. As Figure 6 shown in the state, two air rods 33 are fixedly connected in the fixed block 2. The output ends of the two air rods 33 are opposite and are respectively located in two different partition chambers 31. A square plate 331 is fixedly connected to the output end of the air rod 33. The square plate 331 is used to protect the internal air rod 33 to prevent sewage from entering. And the two air rods 33 are not connected to each other. A push plate 332 is fixedly connected to one side of the square plate 331. Adjusting blocks 342 adapted to the push plate 332 are fixedly connected to both sides of the rotating frame 34.

[0040] Furthermore, the air rod 33 is filled with normal air, and the output end of the air rod 33 is not at the maximum stroke. Since the output end of the air rod 33 is not at the maximum stroke, during the process that the internal pressure in one of the partition chambers 31 continues to be small due to blockage, the air rod 33 with normal internal air pressure will move its output end forward under the push of the air pressure, and then push the square plate 331 and the push plate 332 forward. The forward movement of the push plate 332 will correspondingly push the adjusting block 342, causing the rotating frame 34 to rotate accordingly. The positioning ring 341 magnetically adsorbed to the partition plate 321 will be separated from the partition plate 321 under the rotation of the rotating frame 34, thereby weakening the adsorption effect on the partition plate 321 and facilitating the subsequent rotation and switching of the partition plate 321. And the positioning ring 341 on the other side moves synchronously with the rotating frame 34 to the connection position, facilitating magnetic positioning after the partition plate rotates over.

[0041] It should be noted that when the partition plate 321 is pushed to switch the partition chamber 31 by the air pressure difference, if the rotation of the partition plate 321 does not reach the sealing state for one side of the partition chamber 31, the partition plate 321 will also be pushed to the predetermined position under the impact of the inhaled water flow.

[0042] Even further, a plurality of sealing curtains 343 are fixedly connected to the inner wall of the activity groove. The sealing curtains 343 are fixedly connected to the rotating frame 34. The sealing curtains 343 are made of materials such as nylon and rubber, and are used to seal both ends of the activity groove to prevent the two partition chambers 31 from communicating with each other and affecting the pumping effect.

[0043] As Figure 7 , Figure 8 and Figure 9 shown, in this embodiment, the collection component includes collection blocks 4 fixedly connected to both sides of the fixed block 2. Activity cavities 41 and collection cavities 42 are respectively formed in the collection blocks 4. The activity cavity 41 and the collection cavity 42 communicate with each other. Two positioning shafts 43 are rotatably connected to the inner wall of the activity cavity 41. The two positioning shafts 43 are respectively located at the top and bottom of the inner wall of the activity cavity 41. A number of clamping blocks 431 are fixedly connected to the surface of the positioning shaft 43. The clamping blocks 431 are in the shape of hooks. The positioning shaft 43 is connected to the collection block 4 through a torsion spring 432. When the torsion spring 432 is in a relaxed state, the clamping blocks 431 do not block the outer sleeve block 22 from entering the collection block 4, and the arrangement of the number of clamping blocks 431 is staggered from the filter grid 221.

[0044] Specifically, when the outer sleeve block 22 carries the sundries blocked on its surface into the collection block 4, it will not be blocked by the clamping blocks 431 during the entry process. When the outer sleeve block 22 is removed from the collection block 4, the hook-shaped clamping blocks 431 will rotate due to the sundries on the surface of the filter grid 221, so that the clamping blocks 431 are clamped into the gaps between a number of filter grids 221, thereby filtering off the sundries blocked on the surface of the filter grid 221 and retaining them on the surface of the clamping blocks 431. After the outer sleeve block 22 is completely removed, under the resilience of the torsion spring 432, the clamping blocks 431 rebound and retain the sundries between the clamping blocks 431 and the inner wall of the activity cavity 41, preventing the sundries from floating in the water again and continuing to block the filter grid 221.

[0045] It should be noted that when one end of the outer sleeve block 22 is completely inserted into the collection block 4, the other end will not be completely separated from the collection block 4 on the other side, which can prevent the sundries in the collection block 4 from floating out from its outlet.

[0046] Furthermore, a sliding groove 411 is formed in the inner wall of the activity cavity 41, and a push plate 412 is slidably connected through the sliding groove 411. A connecting block 413 is fixedly connected to one side of the push plate 412. The connecting block 413 is connected to the collection block 4 through a tension spring 414. Both ends of the tension spring 414 are fixedly connected to the connecting block 413 and the collection block 4 respectively.

[0047] Specifically, during the process of the outer sleeve block 22 being inserted into the collection block 4, the outer sleeve block 22 will push the connecting block 413, and drive the push plate 412 to slide in the activity cavity 41 and stretch the tension spring 414, pushing the sundries collected by the clamping blocks 431 into the collection cavity 42 for collection. Subsequently, when the outer sleeve block 22 is pulled out of the collection block 4, the tension spring 414 rebounds synchronously and pulls the push plate 412 back to the initial position.

[0048] Wherein, there is a gap adapted to the connecting block 413 between the two positioning shafts 43, and this gap allows the connecting block 413 to pass through, avoiding the positioning shafts 43 from obstructing the connecting block 413.

[0049] A sealing cover 44 is arranged at the top of the collecting block 4 near the upper position of the collecting cavity 42. A through hole adapted to the sealing cover 44 is provided at the top of the collecting block 4. The sealing cover 44 is connected to the through hole by means such as damping and buckles. By removing the sealing cover 44, the sundries in the collecting cavity 42 can be cleaned.

[0050] Working principle: Place the pump body 1 into the sewage to be pumped out, so that its water inlet pipe 12 is immersed in the water, and connect the end of the connecting pipe 211 extending from the surface of the top cover 21 away from the top cover 21 to the external air. At this time, the partition plate 321 is located on the inner wall of one of the partition cavities 31 and seals it. The external opening of this partition cavity 31 is blocked by the outer sleeve block 22. The water passing cavity 3 is connected to the other partition cavity 31. The opening of this partition cavity 31 is blocked by the filter grid 221 on the surface of the outer sleeve block 22. Start the pump body 1 to pump water. Water enters through the partition cavity 31 with the opening not blocked, so as to pump and transport the sewage. When the sewage is difficult to enter due to sundries blocking the surface of the filter grid 221, since the pump body 1 is continuously working, a negative pressure suction is generated in the water inlet pipe 12, and the amount of water entering from the partition cavity 31 gradually decreases due to the blockage, resulting in the pressure in the partition cavity 31 and the water passing cavity 3 gradually decreasing. For the other partition cavity 31 blocked by the partition plate 321, since it is connected to the inside of the groove through the communication hole 325, and the groove is connected to the external air through the connecting pipe 211, the air pressure in the blocked partition cavity 31 is at normal atmospheric pressure. Due to the continuous decrease of the pressure in the other partition cavity 31 and the water passing cavity 3, under the action of the atmospheric pressure, the air pressure in the blocked partition cavity 31 will push open the partition plate 321, cooperate with the movement of the adjustment assembly, switch the partition plate 321, the partition plate 321 drives the rotating shaft 32 to rotate, the rotating shaft 32 drives the connecting gear 324 to rotate through the arc-shaped block 322, and then the connecting gear 324 drives the outer sleeve block 22 to move, so that the filter grid 221 at one end of the outer sleeve block 22 moves to the opening of the blocked partition cavity 31, and the filter grid 221 blocked by sundries at the other end is inserted into the collecting block 4 to complete the switching. The pump body 1 continues to work, and at the same time, the sundries are collected in the collecting block 4.

[0051] The embodiments of the present invention have been described above, but these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are only illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make more equivalent embodiments in various forms, all of which fall within the protection scope of this embodiment.

Claims

1. A sewage pump protection device, comprising a pump body (1), a bracket (11), a water inlet pipe (12) and a water outlet pipe (13), characterized in that, Further included are: A protection component, which is arranged at one end of the water inlet pipe (12). The protection component includes a fixed block (2) fixedly connected to one end of the water inlet pipe (12). A water passing cavity (3) and several partition cavities (31) communicated with it are respectively formed inside the fixed block (2). The water passing cavity (3) is communicated with the water inlet pipe (12). An outer sleeve block (22) is slidably connected to the surface of the fixed block (2). A plurality of filter grids (221) adapted to the partition cavities (31) are arranged near both ends of the surface of the outer sleeve block (22). A plurality of partition grids (223) are fixedly connected to the surface of the outer sleeve block (22); A switching component, which is arranged at the connection position between the water passing cavity (3) and the partition cavities (31). The switching component includes a rotating shaft (32) rotatably connected inside the fixed block (2). A partition plate (321) adapted to the partition cavities (31) is fixedly connected to the surface of the rotating shaft (32). The rotating shaft (32) is connected to the outer sleeve block (22) through a connection component. When the surface of the filter grid (221) at one end of the outer sleeve block (22) is blocked by sundries and it is difficult for sewage to enter, the partition plate (321) rotates to switch the connection state between the water passing cavity (3) and the partition cavities (31). The rotating shaft (32) drives the outer sleeve block (22) to move through the connection component, so that the filter grid (221) at the other end of the outer sleeve block (22) moves to the opening of the partition cavity (31) that is connected to the water passing cavity (3) after the partition plate (321) rotates; A top cover (21) is fixedly connected to the top of the fixed block (2). A groove is formed between the fixed block (2) and the top cover (21). Communication holes (325) respectively communicated with the partition cavities (31) are formed in the groove. A communication pipe (211) is fixedly connected to the surface of the top cover (21). One end of the communication pipe (211) is connected to the external air, and the other end is communicated with the inside of the groove. The connection component is located in the groove. Collection components adapted to the outer sleeve block (22) are arranged on both sides of the fixed block (2). When sewage enters from the filter grid (221) at one end of the outer sleeve block (22), the communication hole (325) at the partition cavity (31) communicated with the water passing cavity (3) is not communicated with the external air, and the communication hole (325) at the partition cavity (31) not communicated with the water passing cavity (3) is communicated with the external air.

2. The sewage pump protection device according to claim 1, characterized in that, The connection component includes an arc-shaped block (322) fixedly connected to the surface of the rotating shaft (32). Tooth grooves are arranged on the surface of the arc-shaped block (322), and the arc-shaped block (322) is located in the groove. A connecting gear (324) is rotatably connected to the bottom of the groove. The connecting gear (324) meshes with the tooth grooves on the surface of the arc-shaped block (322). A rack (222) is formed on the surface of the outer sleeve block (22). The rack (222) meshes with the connecting gear (324).

3. The sewage pump protection device according to claim 2, wherein, A baffle (323) adapted to the communication hole (325) is fixedly connected to the side of the arc-shaped block (322) away from the tooth groove.

4. A sewage pump protection device according to any one of claims 1-3, characterized in that, It further includes an adjustment component for facilitating the switching of the partition plate (321). The adjustment component includes a rotating frame (34) rotatably connected within the fixed block (2). An activity slot is provided within the fixed block (2), and the rotating frame (34) rotates on the inner wall of the activity slot. Both ends of the rotating frame (34) are respectively disposed on both sides of the rotating shaft (32). Both ends of the rotating frame (34) are fixedly connected with positioning rings (341) adapted to the separation cavity (31). A number of magnetic blocks are installed within the positioning rings (341). The partition plate (321) is a plate made of a material with magnetization characteristics. Two air cylinders (33) are fixedly connected within the fixed block (2). The output end of the air cylinder (33) is fixedly connected with a square plate (331). One side of the square plate (331) is fixedly connected with a push plate (332). Adjustment blocks (342) adapted to the push plate (332) are fixedly connected to both sides of the rotating frame (34).

5. The sewage pump protection device according to claim 4, characterized in that, The air cylinder (33) is filled with normal air, and the output end of the air cylinder (33) is not at the maximum stroke.

6. The sewage pump protection device according to claim 4, characterized in that, A number of sealing curtains (343) are fixedly connected to the inner wall of the activity slot, and the sealing curtains (343) are fixedly connected with the rotating frame (34).

7. The sewage pump protection device according to claim 1, characterized in that, The collection component includes collection blocks (4) fixedly connected to both sides of the fixed block (2). Activity cavities (41) and collection cavities (42) are respectively provided within the collection blocks (4). The activity cavity (41) and the collection cavity (42) are interconnected. Two positioning shafts (43) are rotatably connected to the inner wall of the activity cavity (41). A number of clamping blocks (431) are fixedly connected to the surface of the positioning shafts (43). The positioning shafts (43) are connected to the collection blocks (4) through torsion springs (432).

8. A sewage pump protection device according to claim 7, characterized in that, A sliding slot (411) is provided on the inner wall of the activity cavity (41), and a pushing plate (412) is slidably connected through the sliding slot (411). One side of the pushing plate (412) is fixedly connected with a connecting block (413). The connecting block (413) is connected to the collection block (4) through a tension spring (414).

9. The sewage pump protection device according to claim 8, characterized in that, There is a gap adapted to the connecting block (413) between the two positioning shafts (43).

10. A sewage pump protection device according to claim 7, characterized in that, A sealing cover (44) is provided at the top of the collection block (4) near the upper position of the collection cavity (42).

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