Filtering device for horizontal split multi-stage pump

Abstract

The utility model relates to the technical field of multi-stage pumps, and discloses a filtering device for a horizontal split multi-stage pump, which comprises a multi-stage pump body, the inlet end of the multi-stage pump body is fixedly connected with a filtering box, the inside of the filtering box is fixedly connected with a filtering plate, a cleaning assembly comprises a first sliding plate movably connected to one side of the filtering plate, and a second sliding plate movably connected to the other side of the filtering plate. A scraping plate is fixedly connected to one side of the first sliding plate, a pull rope is arranged outside a pulley, one end of the pull rope is fixedly connected with the first sliding plate, a movable plate is rotatably connected to the interior of the filtering box, the movable plate is fixedly connected with the other end of the pull rope, and the outer portions of the two sets of sliding rods are slidably connected with the same second sliding plate; according to the automatic impurity cleaning device, the problems that due to the fact that an integrated structure capable of automatically cleaning impurities is lacked, cleaning operation of the filter screen is troublesome, and normal use of a pump body is delayed are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage pumps, in particular to a filtering device for a horizontal split multi-stage pump. Background Art

[0002] A multistage pump is a centrifugal pump composed of multiple impellers connected in series. The pump uses the centrifugal force of the rotating impellers to convey materials. The output water pressure of a multistage pump can be very high. Its operating principle is to achieve suction, compression, and exhaust through changes in the pump chamber volume. Therefore, it is a variable-volume centrifugal pump. Multistage pumps play an important role in industrial applications, particularly in applications requiring high head, such as urban water supply, hydraulic engineering, and fire protection projects.

[0003] The Chinese utility model patent publication number CN221074604U discloses an automatic drainage water pump water filter device. The device can filter impurities in the water flow through a filter screen. At the same time, the filter screen can be removed separately after use, thereby facilitating the cleaning of impurities on the filter screen, so that the filter screen will not be clogged during the next use. With respect to the above-mentioned related technology, the inventor believes that there are the following defects:

[0004] When the filter screen is clogged during actual use, the device lacks an integrated structure that can automatically clean impurities, so the operator needs to shut down the pump body and then disassemble the filter screen to clean it. This is not only troublesome, but also delays the normal use of the pump body. For this reason, we provide a horizontal split multi-stage pump filtering device. Utility Model Content

[0005] In order to solve the problem in the above background technology that the filter cleaning operation is not only troublesome but also delays the normal use of the pump body due to the lack of an integrated structure that can automatically clean impurities, the utility model provides a horizontal center-open multi-stage pump filtering device.

[0006] The utility model adopts the following technical solutions to realize: a filtering device for a horizontal split multi-stage pump, comprising:

[0007] A multi-stage pump body, wherein the inlet end of the multi-stage pump body is fixedly connected to a filter box, a filter plate is fixedly connected to the inside of the filter box, a water inlet pipe is fixedly connected to one side of the top of the filter box, a sewage outlet is opened at the lower part of one side of the filter box, and a sealing door is movably connected to the outside of the sewage outlet;

[0008] The cleaning assembly comprises a slide plate movably connected to one side of the filter plate, one side of the slide plate is fixedly connected to a scraper, the top of the filter box is rotatably connected to a pulley, a pull rope is provided on the outside of the pulley and one end of the pull rope is fixedly connected to the slide plate, the inside of the filter box is rotatably connected to a movable plate and the movable plate is fixedly connected to the other end of the pull rope, two groups of sliding rods are symmetrically provided below one side of the movable plate and the sliding rods are fixedly connected to the inner wall of the filter box through a connecting seat, the outsides of the two groups of sliding rods are slidably connected to the same slide plate 2, and a connecting rod is symmetrically hinged between the slide plate 2 and the movable plate through a hinge, and the outer sleeve of the sliding rod is provided with a spring.

[0009] As a further improvement of the above solution, two groups of guide rods are symmetrically fixedly connected to one side of the filter plate, and the two groups of guide rods are slidably connected to the slide plate at the same time.

[0010] As a further improvement of the above solution, a counterweight is fixedly connected to the bottom of the slide plate.

[0011] As a further improvement of the above solution, the length of the scraper matches the length of the filter plate.

[0012] As a further improvement of the above solution, the movable plate is located directly below the water inlet pipe and the area of ​​the movable plate is larger than the cross-sectional area of ​​the water inlet pipe.

[0013] As a further improvement of the above solution, the two ends of the spring are fixedly connected to the connecting seat and the second slide plate respectively.

[0014] As a further improvement of the above solution, the inlet end of the multi-stage pump body is fixedly connected to a water pumping pipe, and the end of the pipe mouth of the water pumping pipe extends to the bottom of the inner cavity of the filter box.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When water is injected into the filter box through the water inlet pipe, the falling water flow will impact the movable plate. The sliding cooperation between the second slide plate and the slide rod, the hinged effect between the second slide plate and the movable plate and the connecting rod, and the rotation cooperation between the movable plate and the inner wall of the filter box are used to make the movable plate rotate downward. When the movable plate rotates downward, the first slide plate is pulled upward by the pull rope, so that the scraper can be driven to move upward to clean the surface of the filter plate, thereby ensuring a good filtering effect of the filter plate and having strong practicality.

[0017] 2. In the present invention, when impurities filtered out from the filter plate adhere to and form a blockage, the filtering effect deteriorates, causing the water level on the right side of the filter plate to continue to rise. When the water level submerges the movable plate, the falling water flow will directly impact the water body, which greatly reduces the impact on the movable plate. Under the rebound effect of the spring and the gravity of the counterweight, the movable plate will rotate upward again. At this time, the scraper will move downward again to scrape the surface of the filter plate again, thereby achieving the purpose of cleaning the impurities attached to the surface of the filter plate, effectively avoiding the problem that the filter cleaning operation is not only troublesome but also delays the normal use of the pump body due to the lack of an integrated structure that can automatically clean impurities, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the vertical sectional three-dimensional structure of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the connection structure of the skateboard, scraper, counterweight and guide rod of the utility model.

[0021] Description of main symbols:

[0022] 1. Multi-stage pump body; 2. Filter box; 3. Filter plate; 4. Water inlet pipe; 5. Water extraction pipe; 101. Slide plate 1; 102. Scraper; 103. Pulley; 104. Pull rope; 105. Movable plate; 106. Slide rod; 107. Slide plate 2; 108. Connecting rod; 109. Spring; 110. Guide rod; 111. Counterweight. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 1-3 A filtering device for a horizontal split multi-stage pump according to this embodiment includes:

[0026] A multi-stage pump body 1, the inlet end of the multi-stage pump body 1 is fixedly connected to a filter box 2, the interior of the filter box 2 is fixedly connected to a filter plate 3, one side of the top of the filter box 2 is fixedly connected to a water inlet pipe 4, a lower part of one side of the filter box 2 is provided with a sewage outlet, and the outside of the sewage outlet is movably connected to a sealing door;

[0027] The cleaning assembly includes a slide 101 movably connected to one side of the filter plate 3, a scraper 102 is fixedly connected to one side of the slide 101, a pulley 103 is rotatably connected to the top of the filter box 2, a pull rope 104 is provided on the outside of the pulley 103, and one end of the pull rope 104 is fixedly connected to the slide 101, the inside of the filter box 2 is rotatably connected to a movable plate 105, and the movable plate 105 is fixedly connected to the other end of the pull rope 104, two groups of sliding rods 106 are symmetrically provided on the lower side of one side of the movable plate 105, and the sliding rods 106 are fixedly connected to the inner wall of the filter box 2 through a connecting seat, the outer side of the two groups of sliding rods 106 are slidably connected to the same slide 2 107, and the slide 2 107 and the movable plate 105 are symmetrically hinged with connecting rods through hinges 108. The outer sleeve of the slide rod 106 is provided with a spring 109. The two ends of the spring 109 are fixedly connected to the connecting seat and the slide plate 2 107 respectively. One side of the filter plate 3 is symmetrically fixedly connected with two sets of guide rods 110 and the two sets of guide rods 110 are slidably connected to the slide plate 101 at the same time, which can guide the vertical movement of the scraper 102 to a certain extent. The bottom of the slide plate 101 is fixedly connected with a counterweight block 111. The length of the scraper 102 matches the length of the filter plate 3, which can ensure the thoroughness of the scraping of the filter plate 3. The movable plate 105 is directly below the water inlet pipe 4 and the area of ​​the movable plate 105 is larger than the cross-sectional area of ​​the water inlet pipe 4, which can ensure that the falling water flow completely impacts the movable plate 105.

[0028] The implementation principle of a horizontal center-open multi-stage pump filtering device in the embodiment of the present application is as follows: when in use, water is discharged into the filter box 2 through the water inlet pipe 4, and the falling water flow will impact the movable plate 105. The sliding cooperation between the slide plate 2 107 and the slide rod 106, the hinged effect between the slide plate 2 107 and the movable plate 105 and the connecting rod 108, and the rotation cooperation between the movable plate 105 and the inner wall of the filter box 2 make the movable plate 105 rotate downward. When the movable plate 105 rotates downward, the slide plate 101 is pulled upward by the pull rope 104, so that the scraper 102 can be driven to move upward to scrape the surface of the filter plate 3, thereby ensuring a good filtering effect of the filter plate 3. The water will flow to the other side after being filtered by the filter plate 3, and the multi-stage pump body 1 is started. The multi-stage pump body 1 can pump and discharge the filtered water. When the surface of the filter plate 3 is filtered out When impurities adhere to form a blockage, the water level on the right side of the filter plate 3 will continue to rise due to the deterioration of the filtering effect. When the water level submerges the movable plate 105, the falling water flow will directly impact the water body, which greatly reduces the impact on the movable plate 105. Under the rebound effect of the spring 109 and the gravity of the counterweight 111, the movable plate 105 will rotate upward again. At this time, the scraper 102 will move downward again to scrape the surface of the filter plate 3 again, thereby achieving the purpose of cleaning the impurities attached to the surface of the filter plate 3, effectively avoiding the problem that the lack of an integrated structure that can automatically clean impurities makes the filter cleaning operation not only troublesome, but also delays the normal use of the pump body. When the device is used up, the impurities inside the filter box 2 can be cleaned out through the sewage outlet by opening the sealing door.

[0029] Example 2:

[0030] Based on Example 1, this embodiment is further improved in that: the inlet end of the multi-stage pump body 1 is fixedly connected to the water suction pipe 5, and the end of the pipe mouth of the water suction pipe 5 extends to the bottom of the inner cavity of the filter box 2, so as to facilitate the complete emptying of the filtered water inside the filter box 2 to avoid residue.

[0031] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A filtering device for a horizontal split multi-stage pump, characterized in that: include: A multi-stage pump body (1), wherein the inlet end of the multi-stage pump body (1) is fixedly connected to a filter box (2), a filter plate (3) is fixedly connected inside the filter box (2), a water inlet pipe (4) is fixedly connected to one side of the top of the filter box (2), a sewage outlet is opened at the lower part of one side of the filter box (2), and a sealing door is movably connected to the outside of the sewage outlet; A cleaning assembly, the cleaning assembly comprising a slide plate (101) movably connected to one side of a filter plate (3), a scraper (102) fixedly connected to one side of the slide plate (101), a pulley (103) rotatably connected to the top of the filter box (2), a pull rope (104) provided on the outside of the pulley (103) and one end of the pull rope (104) fixedly connected to the slide plate (101), a movable plate (105) rotatably connected to the inside of the filter box (2) and the movable plate (105) ) is fixedly connected to the other end of the pull rope (104), two groups of sliding rods (106) are symmetrically arranged below one side of the movable plate (105), and the sliding rods (106) are fixedly connected to the inner wall of the filter box (2) through a connecting seat, and the external sliding connection of the two groups of sliding rods (106) is connected to the same slide plate 2 (107), and the slide plate 2 (107) and the movable plate (105) are symmetrically hinged with a connecting rod (108) through a hinge, and the external sleeve of the sliding rod (106) is provided with a spring (109).

2. A filtering device for a horizontal split multi-stage pump according to claim 1, characterized in that: Two groups of guide rods (110) are symmetrically fixedly connected to one side of the filter plate (3), and the two groups of guide rods (110) are slidably connected to the slide plate (101) at the same time.

3. A filtering device for a horizontal split multi-stage pump according to claim 1, characterized in that: The bottom of the slide plate (101) is fixedly connected with a counterweight (111).

4. A filtering device for a horizontal split multi-stage pump according to claim 1, characterized in that: The length of the scraper (102) matches the length of the filter plate (3).

5. A filtering device for a horizontal split multi-stage pump according to claim 1, characterized in that: The movable plate (105) is located directly below the water inlet pipe (4), and the area of ​​the movable plate (105) is larger than the cross-sectional area of ​​the water inlet pipe (4).

6. A filtering device for a horizontal split multi-stage pump according to claim 1, characterized in that: The two ends of the spring (109) are fixedly connected to the connecting seat and the second slide plate (107) respectively.

7. A filtering device for a horizontal split multi-stage pump according to claim 1, characterized in that: The inlet end of the multi-stage pump body (1) is fixedly connected to a water pumping pipe (5), and the end of the pipe mouth of the water pumping pipe (5) extends to the bottom of the inner cavity of the filter box (2).

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