Anti-blocking structure for submersible sewage pump

Abstract

The utility model relates to the technical field of water inlet anti-blocking of submersible sewage pumps, and provides an anti-blocking structure for a submersible sewage pump, which comprises a shell, a water inlet pipe is fixedly connected to one side of the shell, a drainage pipe is fixedly connected to the other side of the shell, a fixing groove is formed in one side of the top end of the shell, a sealing plate is movably connected to one side of the top end of the shell, and a water outlet pipe is fixedly connected to the other side of the shell. The bottom end of the sealing plate is fixedly connected with a filter screen extending into the shell, one side of the filter screen is provided with a cleaning assembly, and the bottom end of the part, on one side of the filter screen, of the shell is fixedly connected with a blow-off pipe. The scraper slides up and down to scrape and clean one side of the filter screen, so that impurities adhered to and filtered from one side of the filter screen can be guided through the flow guide groove and discharged from the blow-off pipe more quickly and more intensively, automatic cleaning action of the filter screen is realized, inconvenience in cleaning caused by accumulation of the impurities in the shell is avoided, and the practicability of the filter screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water inlet blocking prevention for submersible sewage pumps, in particular to an anti-blocking structure for submersible sewage pumps. Background Art

[0002] Submersible sewage pump is a kind of equipment specially used for transporting dirt and sewage. It is widely used in urban sewage treatment, industrial wastewater treatment, building drainage and other fields. It can effectively treat and discharge sewage and prevent environmental pollution. In order for the submersible sewage pump to work better, it is often necessary to add a filter screen to the water inlet of the submersible sewage pump to filter out large particles of impurities to avoid damage to the pump body or poor sewage discharge.

[0003] After searching, the existing patent (Announcement No.: CN219492716U) discloses a submersible sewage pump water inlet anti-blocking structure, including a pump body, one side of the pump body is connected to a connecting pipe, one end of the connecting pipe is connected to a first intermediate pipe, one end of the first intermediate pipe is provided with a second intermediate pipe, and one side of the second intermediate pipe is connected to a water inlet pipe. The utility model is provided with a hydraulic sensor, a motor, a worm, a worm gear, a connecting shaft, a valve body, a first intermediate pipe, a second intermediate pipe, a kit, a movable part, a chute, a slider, a fixing part, a filter assembly and a sealing sheet. During the use of pumping, the structure can automatically change the pipe used for pumping. When a filter assembly is blocked, it can automatically switch to another pumping structure for pumping operation. The degree of automation is high, and the use effect of the anti-blocking structure is improved. At the same time, the structure can realize the disassembly and replacement of the internal anti-blocking filter assembly without stopping the pump body, thereby improving the pumping efficiency of the pump.

[0004] However, in the above scheme, it is inconvenient to clean automatically, and the impurities filtered out by the filter will accumulate inside the pipe on one side of the filter. After the filter is removed, these impurities are not easy to remove from the pipe, and the staff needs to frequently remove and clean the filter, which makes it inconvenient to use.

[0005] In view of this, the utility model proposes an anti-blocking structure for a submersible sewage pump. Utility Model Content

[0006] The utility model provides an anti-blocking structure for a submersible sewage pump, which solves the problem of inconvenience in automatic cleaning in the related technology.

[0007] The technical solution of the utility model is as follows: a submersible sewage pump anti-blocking structure, comprising a shell, one side of the shell is fixedly connected to a water inlet pipe, the other side of the shell is fixedly connected to a drain pipe, a fixing groove is opened on one side of the top of the shell, a sealing plate is movably connected to one side of the top of the shell, a mounting assembly is provided on the top of the shell on one side of the sealing plate, a filter screen extending to the inside of the shell is fixedly connected to the bottom of the sealing plate, a cleaning assembly is provided on one side of the filter screen, and a sewage pipe is fixedly connected to the bottom of the shell on one side of the filter screen.

[0008] The cleaning assembly includes a pneumatic telescopic rod, which is fixedly connected to the top of a shell on one side of a sealing plate, an output end of the pneumatic telescopic rod extends to the interior of the shell and is fixedly connected to a fixing plate, one side of the fixing plate is provided with a slot, the inside of the slot is movably connected with a blocking block, one side of the blocking block is fixedly connected with a scraper extending to the outside of the slot, and the upper end of one end of the shell is fixedly connected to an inspection door through a hinge, and the fixed plate is lowered by the operation of the pneumatic telescopic rod to drive the scraper to lower and scrape and clean one side of the filter screen, and the impurities scraped off the filter screen and the impurities filtered out of the filter screen can be discharged faster and more thoroughly through the sewage pipe, thereby avoiding the cumbersome and inconvenient impurities filtered by the traditional filter screen that are difficult to clean from the inside of the shell, and realizing automatic cleaning of the filter screen, reducing the number of times the filter screen is disassembled, cleaned and installed, and improving its practicality.

[0009] Preferably, a locking structure is formed between the clamping block and the inside of the clamping slot, and the cross-section of the clamping slot and the clamping block is inverted convex, thereby improving the stability of the initial sliding installation between the scraper and the fixed plate.

[0010] Preferably, a bolt hole is provided on the inner wall of the slot, and a reserved groove penetrating the slot is provided at one end of the block, and a fixing bolt threadedly matched with the inside of the bolt hole is movably connected to the inner wall of the reserved groove to ensure the firm stability of the sliding engagement between the block and the inside of the slot.

[0011] Preferably, guide grooves are provided at both ends of the inner bottom wall of the shell on one side of the filter, and the inclination angle of the guide groove to the horizontal direction is thirty degrees, so that impurities scraped off the filter and impurities filtered by the filter can be discharged from the sewage pipe faster and more thoroughly, thereby improving the rate and effect of impurity removal.

[0012] Preferably, the mounting assembly includes a mounting groove, the mounting groove is provided at the top of the shell on one side of the sealing plate, the inner wall of the mounting groove is fixedly connected with a mounting spring, one end of the mounting spring is fixedly connected with a sliding block, the upper end of one side of the sliding block is fixedly connected with a positioning block, the upper end of the other side of the sliding block is fixedly connected with a pull rod, and positioning grooves are provided at both ends of one side of the sealing plate, and the positioning block can be inserted into or disengaged from the positioning groove by utilizing the elastic force of the mounting spring, so that after the positioning block is disengaged, it is convenient to remove the filter screen by the sealing plate, and after being inserted, the sealing plate and the top of the shell are firmly installed, so that the filter screen can be quickly disassembled and assembled, thereby avoiding the cumbersome and inconvenient disassembly and assembly of the filter screen caused by the traditional method of fixing with bolts.

[0013] Preferably, the top view of the pull rod is U-shaped, and one end of the pull rod and the upper end of one side of the sliding block are welded into an integrated structure, so that the pull rod can be pulled to drive the synchronous sliding of the two sliding blocks.

[0014] Preferably, a snap-fit ​​structure is formed between one end of the positioning block and the interior of the positioning groove, and the positioning block and the positioning groove are symmetrically distributed about the vertical center axis of the sealing plate, thereby improving the firmness and stability of the installation of the sealing plate and the top end of the shell.

[0015] Preferably, a sealing ring is fixedly connected to the lower end of the sealing plate surface, and the shape of the sealing ring in a top view is a U-shape, which improves the sealing performance between the sealing plate and the inside of the fixing groove after the sealing plate is snap-fitted and installed, and avoids leakage of the medium.

[0016] The working principle and beneficial effects of the utility model are:

[0017] The utility model discloses a filter screen that is easy to clean and easy to remove, and the filter screen that is easy to remove ...

[0018] The utility model provides an installation assembly and utilizes the elastic force of the installation spring so that the positioning block can be stuck in the positioning groove or detached from the positioning groove, so that after the positioning block is detached, the filter screen can be easily taken out by the sealing plate, and after being stuck in, the sealing plate and the top of the shell body can be firmly installed. At the same time, after the filter screen is installed, the sealing ring is utilized to improve the sealing performance between the sealing plate and the inside of the fixing groove after being engaged and installed, so as to avoid leakage of the medium, so as to realize the rapid disassembly and assembly of the filter screen, avoid the cumbersome and inconvenient disassembly and assembly of the filter screen caused by the traditional bolt fixing, reduce the difficulty of disassembly and assembly of the filter screen for cleaning or maintenance and replacement by the staff, improve its practicality, and thus realize the function of facilitating the disassembly and assembly of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the filter screen of the utility model;

[0023] Figure 4 It is a partial cross-sectional enlarged structural schematic diagram of the installation component of the utility model;

[0024] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1. Sealing plate; 2. Cleaning assembly; 201. Inspection door; 202. Pneumatic telescopic rod; 203. Scraper; 204. Fixing plate; 205. Slot; 206. Block; 207. Fixing bolt; 208. Reserved slot; 209. Bolt hole; 3. Shell; 4. Water inlet pipe; 5. Drain pipe; 6. Installation assembly; 601. Installation slot; 602. Pull rod; 603. Installation spring; 604. Sliding block; 605. Positioning block; 606. Positioning slot; 7. Guide slot; 8. Drain pipe; 9. Filter; 10. Fixing slot; 11. Sealing ring. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0027] The preferred embodiment of the anti-blocking structure for the submersible sewage pump provided by the utility model is as follows Figures 1 to 5 As shown: an anti-blocking structure for a submersible sewage pump, comprising a shell 3, a water inlet pipe 4 is fixedly connected to one side of the shell 3, a drain pipe 8 is fixedly connected to the other side of the shell 3, a fixing groove 10 is opened on one side of the top of the shell 3, a sealing plate 1 is movably connected to one side of the top of the shell 3, a mounting assembly 6 is arranged on the top of the shell 3 on one side of the sealing plate 1, a filter screen 9 extending to the inside of the shell 3 is fixedly connected to the bottom of the sealing plate 1, a cleaning assembly 2 is arranged on one side of the filter screen 9, and a sewage pipe 5 is fixedly connected to the bottom of the shell 3 on one side of the filter screen 9.

[0028] The cleaning component 2 includes a pneumatic telescopic rod 202, which is fixedly connected to the top of the shell body 3 on one side of the sealing plate 1. The output end of the pneumatic telescopic rod 202 extends to the inside of the shell body 3 and is fixedly connected to a fixed plate 204. A slot 205 is provided on one side of the fixed plate 204. A block 206 is movably connected to the inside of the slot 205. A scraper 203 extending to the outside of the slot 205 is fixedly connected to one side of the block 206. The upper end of one end of the shell body 3 is fixedly connected to the inspection door 201 through a hinge. Through the operation of the pneumatic telescopic rod 202, the fixed plate 204 is lowered to drive the scraper 203 to lower and scrape and clean one side of the filter screen 9. Impurities scraped off the filter screen 9 and impurities filtered out by the filter screen 9 can be discharged faster and more thoroughly through the sewage pipe 5, thereby avoiding the cumbersome inconvenience of impurities filtered by the traditional filter screen 9 being difficult to clean from the inside of the shell body 3, and reducing the number of times the filter screen 9 is disassembled, cleaned and installed.

[0029] In this embodiment, a locking structure is formed between the block 206 and the inside of the slot 205. The cross-sections of the slot 205 and the block 206 are inverted convex. The sliding locking between the inverted convex block 206 and the inside of the slot 205 is utilized to improve the stability of the initial sliding installation between the scraper 203 and the fixed plate 204.

[0030] In this embodiment, a bolt hole 209 is provided on the inner wall of the slot 205, and a reserved slot 208 penetrating the slot 206 is provided at one end of the block 206. A fixing bolt 207 threadedly matched with the inside of the bolt hole 209 is movably connected to the inner wall of the reserved slot 208. The fixing bolt 207 is threadedly matched with the inside of the bolt hole 209 to ensure the firmness and stability of the sliding engagement between the block 206 and the inside of the slot 205.

[0031] In this embodiment, guide grooves 7 are provided at both ends of the inner bottom wall of the shell 3 on one side of the filter screen 9. The guide grooves 7 are inclined at an angle of thirty degrees to the horizontal direction. By utilizing the inclined guide grooves 7, impurities scraped off the filter screen 9 and impurities filtered out by the filter screen 9 can be discharged from the sewage pipe 5 faster and more thoroughly, thereby improving the rate and effect of impurity discharge. Example 2

[0032] On the basis of Example 1, a preferred embodiment of the anti-blocking structure for a submersible sewage pump provided by the utility model is as follows: Figures 1 to 5 As shown: the installation component 6 includes a mounting groove 601, and the mounting groove 601 is opened at the top of the shell body 3 on one side of the sealing plate 1. The inner wall of the mounting groove 601 is fixedly connected with a mounting spring 603, and one end of the mounting spring 603 is fixedly connected with a sliding block 604, and the upper end of one side of the sliding block 604 is fixedly connected with a positioning block 605, and the upper end of the other side of the sliding block 604 is fixedly connected with a pull rod 602. Positioning grooves 606 are opened at both ends of one side of the sealing plate 1. By utilizing the elastic force of the mounting spring 603, the positioning block 605 can be inserted into the positioning groove 606 or detached from the positioning groove 606, so that after the positioning block 605 is detached, it is convenient for the sealing plate 1 to take out the filter screen 9, and after being inserted, the sealing plate 1 and the top of the shell body 3 are firmly installed, so that the filter screen 9 can be quickly disassembled and assembled.

[0033] In this embodiment, the top view of the pull rod 602 is U-shaped, and one end of the pull rod 602 and the upper end of one side of the sliding block 604 are welded into an integrated structure. By utilizing the welding between the U-shaped pull rod 602 and the sliding block 604, the pull rod 602 can be pulled to drive the two sliding blocks 604 to slide synchronously.

[0034] In this embodiment, a snap-fit ​​structure is formed between one end of the positioning block 605 and the inside of the positioning groove 606. The positioning block 605 and the positioning groove 606 are symmetrically distributed about the vertical center axis of the sealing plate 1. The snap-fit ​​between the positioning block 605 and the inside of the positioning groove 606 is utilized to improve the firmness and stability of the installation between the sealing plate 1 and the top end of the shell 3.

[0035] In addition, a sealing ring 11 is fixedly connected to the lower end of the surface of the sealing plate 1. The shape of the top view of the sealing ring 11 is a figure-eight shape. By using the figure-eight-shaped sealing ring 11, the sealing performance between the sealing plate 1 and the inside of the fixing groove 10 after snap-fit installation is improved, avoiding the leakage of the medium. And when there are较多 impurities filtered, the sewage discharge pipe 5 can be opened to discharge the impurities filtered by the filter screen 9. At the same time, by starting the pneumatic telescopic rod 202 to drive the fixing plate 204 to descend, the scraper 203 is further driven to descend to scrape and clean one side of the filter screen 9. At the same time, the sewage discharge pipe 5 is opened, and by using the inclined diversion groove 7, the impurities scraped off from the filter screen 9 and the impurities filtered out by the filter screen 9 can be discharged more quickly and thoroughly through the sewage discharge pipe 5, avoiding the cumbersome inconvenience of the impurities filtered by the traditional filter screen 9 being difficult to clean from the inside of the housing 3. And the automatic cleaning of the filter screen 9 can be realized, reducing the number of times of disassembling, cleaning and installing the filter screen 9, improving its practicability. At the same time, after the inspection door 201 is opened, a tool can be used to rotate the fixing bolt 207 until it completely disengages from the inside of the bolt hole 209, and then the scraper 203 is pulled to make the clamping block 206 slide out of the clamping groove 205, and the scraper 203 is taken out from the inspection door 201, so as to facilitate the thorough cleaning or replacement of the scraper 203, avoiding the influence of the overly dirty scraper 203 on the effect of automatically cleaning one side of the filter screen 9;

[0036] When the filter screen 9 needs to be disassembled for thorough cleaning or replacement, the pull rod 602 can be toggled to drive the sliding block 604 to slide in the installation groove 601 to compress the installation spring 603 until the positioning block 605 completely disengages from the inside of the positioning groove 606. Then, the filter screen 9 is taken out of the housing 3 through the sealing plate 1, facilitating the thorough cleaning or replacement of the filter screen 9. When installing the filter screen 9, first pull the pull rod 602 to drive the positioning block 605 to slide to a suitable position, and then insert the filter screen 9 into the housing 3 from the fixing groove 10. At this time, by using the sealing ring 11, the sealing performance between the sealing plate 1 and the inside of the fixing groove 10 after snap-fit installation is improved, avoiding the leakage of the medium. At the same time, the pull rod 602 is released, and by using the elastic force of the installation spring 603, the sliding block 604 slides to drive the positioning block 605 to snap into the inside of the positioning groove 606, realizing the limit fixation after the installation of the sealing plate 1, and then the quick disassembly and assembly of the filter screen 9 can be realized, avoiding the cumbersome inconvenience of disassembling and assembling the filter screen 9 caused by the traditional bolt fixation.

[0037] The working principle and usage process of the present utility model: First, connect the water inlet pipe 4 to an external water inlet, and connect the drain pipe 8 to the water inlet of the submersible sewage pump. Then, the filter screen 9 can be used to filter the sewage entering the submersible sewage pump and filter out the larger impurities.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A submersible sewage pump anti-blocking structure, comprising a housing (3), characterized in that: One side of the shell (3) is fixedly connected to a water inlet pipe (4), the other side of the shell (3) is fixedly connected to a drain pipe (8), one side of the top of the shell (3) is provided with a fixing groove (10), one side of the top of the shell (3) is movably connected to a sealing plate (1), the top of the shell (3) on one side of the sealing plate (1) is provided with a mounting assembly (6), the bottom end of the sealing plate (1) is fixedly connected to a filter screen (9) extending into the interior of the shell (3), one side of the filter screen (9) is provided with a cleaning assembly (2), and the bottom end of the shell (3) on one side of the filter screen (9) is fixedly connected to a sewage pipe (5); The cleaning assembly (2) comprises a pneumatic telescopic rod (202), the pneumatic telescopic rod (202) being fixedly connected to the top end of a shell (3) on one side of a sealing plate (1), the output end of the pneumatic telescopic rod (202) extending into the interior of the shell (3) and being fixedly connected to a fixing plate (204), one side of the fixing plate (204) being provided with a slot (205), the interior of the slot (205) being movably connected to a block (206), one side of the block (206) being fixedly connected to a scraper (203) extending to the outside of the slot (205), and the upper end of one end of the shell (3) being fixedly connected to an inspection door (201) via a hinge.

2. The anti-blocking structure for a submersible sewage pump according to claim 1, characterized in that: A locking structure is formed between the locking block (206) and the interior of the locking slot (205); the cross-sections of the locking slot (205) and the locking block (206) are inverted convex shapes.

3. The anti-blocking structure for a submersible sewage pump according to claim 1, characterized in that: The inner wall of the clamping slot (205) is provided with a bolt hole (209), one end of the clamping block (206) is provided with a reserved slot (208) penetrating the clamping block (206), and the inner wall of the reserved slot (208) is movably connected with a fixing bolt (207) threadedly matched with the inside of the bolt hole (209).

4. The anti-blocking structure for a submersible sewage pump according to claim 1, characterized in that: Guide grooves (7) are provided at both ends of the inner bottom wall of the shell (3) on one side of the filter screen (9), and the guide grooves (7) are inclined at an angle of thirty degrees to the horizontal direction.

5. The anti-blocking structure for a submersible sewage pump according to claim 1, characterized in that: The mounting assembly (6) comprises a mounting groove (601), wherein the mounting groove (601) is provided at the top end of the shell (3) on one side of the sealing plate (1), a mounting spring (603) is fixedly connected to the inner wall of the mounting groove (601), one end of the mounting spring (603) is fixedly connected to a sliding block (604), the upper end of one side of the sliding block (604) is fixedly connected to a positioning block (605), the upper end of the other side of the sliding block (604) is fixedly connected to a pull rod (602), and positioning grooves (606) are provided at both ends of one side of the sealing plate (1).

6. The anti-blocking structure for a submersible sewage pump according to claim 5, characterized in that: The pull rod (602) is U-shaped in a top view, and one end of the pull rod (602) and the upper end of one side of the sliding block (604) are welded into an integrated structure.

7. The anti-blocking structure for a submersible sewage pump according to claim 5, characterized in that: A snap-fit ​​structure is formed between one end of the positioning block (605) and the interior of the positioning groove (606); the positioning block (605) and the positioning groove (606) are symmetrically distributed about the vertical center axis of the sealing plate (1).

8. The anti-blocking structure for a submersible sewage pump according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the lower end of the surface of the sealing plate (1); the sealing ring (11) is in the shape of a Chinese umbilical cord when viewed from above.

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