Sewage pump bottom valve filtering device

Abstract

The utility model relates to a sewage pump bottom valve filtering device which comprises a stainless steel filter and a transition connector with the top connected with a water pumping pipe. The bottom of the transition joint is connected with the stainless steel filter; the upper sealing plate matching pore plate and the lower sealing plate matching pore plate are fixedly arranged in the transition joint; a gap is formed between the upper sealing plate matching pore plate and the lower sealing plate matching pore plate, and a nylon sealing plate is movably mounted between the upper sealing plate matching pore plate and the lower sealing plate matching pore plate through a fixing pin; one end of the fixing pin is movably mounted in the middle of the upper sealing plate matching pore plate, and the other end of the fixing pin is fixedly provided with the nylon sealing plate and extends into a lower water outlet through hole in the middle of the lower sealing plate matching pore plate; and a stainless steel spring is arranged between the top of the nylon sealing plate and the bottom of the upper sealing plate matching pore plate and is wound on the fixing pin. The passive control device consisting of the upper sealing plate, the lower sealing plate, the pore plate and the nylon sealing plate is matched with the stainless steel filter, so that sewage can be discharged more quickly, impurities in a pool are convenient to clean, and the maintenance frequency of the sewage pump is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to a kind of bottom valve filtration technical field, for galvanization pretreatment sewage pump sewage process, especially involve a kind of sewage pump bottom valve filtering device. BACKGROUND

[0002] Galvanizing production line needs to use a large amount of water to clean and cool the equipment, and the intermediate running equipment will produce some iron filings, broken cloth heads, nylon threads and other sundries together into the pretreatment sewage pit, and the sewage pump will discharge the water in the sewage pit. The staff found that the sewage pump often does not have water, which causes the pretreatment equipment to be flooded many times, damaging many motors and seriously affecting production safety.

[0003] When the sewage pump does not have water, a large number of manpower is needed to maintain the smooth operation of production, and the staff found that the reason for the sewage pump not having water is that the sundries block the filter gap. The device in the prior art to solve such problems is as disclosed in the utility model patent with the patent number CN201420750498.9, the publication number CN204311542U and the patent name Anti-clogging and easy-to-start sewage pumping device. The device can effectively prevent clogging and collect sundries through two layers of filter screens for easy cleaning by the staff, but the device is applied to the tobacco sheet production technical field, and the specific types and quantities of sundries generated in the production process are quite different from those in the galvanizing production line, so the pretreatment sewage pump bottom valve needs to be redesigned and improved. SUMMARY

[0004] The utility model provides a sewage pump bottom valve filtering device to solve the technical problems in the prior art, which ensures that the sewage in the galvanizing pretreatment sewage tank can be discharged better and faster, and facilitates the cleaning of sundries in the sewage tank.

[0005] The utility model discloses the following technical solutions:

[0006] A sewage pump bottom valve filtering device comprises a stainless steel filter and a transition joint connected to the top of the water pumping pipe. The bottom of the transition joint is connected to the stainless steel filter, and the transition joint is fixed with an upper sealing plate cooperation hole plate and a lower sealing plate cooperation hole plate. A spacing is provided between the upper sealing plate cooperation hole plate and the lower sealing plate cooperation hole plate, and a nylon sealing plate is movably installed between the two through a fixed pin. One end of the fixed pin is movably installed in the middle of the upper sealing plate cooperation hole plate, and the other end is fixed with the nylon sealing plate and extends into the lower water outlet through hole in the middle of the lower sealing plate cooperation hole plate. A stainless steel spring is provided between the top of the nylon sealing plate and the bottom of the upper sealing plate cooperation hole plate, and the stainless steel spring is wound around the fixed pin.

[0007] When the device is not working, the nylon sealing plate is attached to the lower sealing plate hole plate under the action of the stainless steel spring, so that the water below the sewage pump does not leak, ensuring the sealing; after the sewage pump is started, the device starts to work, the sewage flows upward under the suction of the pump, pushing the nylon sealing plate upward, the nylon sealing plate drives the fixed pin to move upward, extruding the stainless steel spring and being in the lifted state, so that the sewage continuously passes through.

[0008] Further, the main body of the stainless steel filter is in a hollow cylindrical shape, and uniform filter holes are arranged on the wall of the cylinder; the main body of the stainless steel filter is provided with a first connecting flange at both ends.

[0009] Further, the filter holes are in a vertical long rectangular shape, so as to introduce small sundries into the filter for subsequent cleaning.

[0010] Further, the upper end of the stainless steel filter is connected with a transition joint, and the lower end is connected with a filter sealing plate.

[0011] Further, the transition joint is provided with a second connecting flange at both ends, and the second connecting flange is connected with the water pumping pipe or the first connecting flange through bolts.

[0012] Further, the diameter of the upper water outlet through hole on the upper sealing plate hole plate is smaller than that of the lower water outlet through hole on the lower sealing plate hole plate.

[0013] Further, the distribution range of the lower water outlet through hole is within the area covered by the nylon sealing plate.

[0014] Further, the diameter of the nylon sealing plate is smaller than the inner diameter of the main body of the transition joint.

[0015] Further, the thickness of the nylon sealing plate is smaller than the spacing between the upper sealing plate hole plate and the lower sealing plate hole plate.

[0016] Further, the length of the fixed pin is greater than the spacing between the upper sealing plate hole plate and the lower sealing plate hole plate.

[0017] The utility model has the advantages and positive effects:

[0018] 1. The passive control device composed of the upper sealing plate hole plate, the lower sealing plate hole plate and the nylon sealing plate cooperates with the stainless steel filter to ensure that the sewage in the galvanizing pretreatment sewage pool can be better and faster discharged, and the sundries in the sewage discharge pool can be conveniently cleaned, the maintenance frequency of the sewage pump and the labor intensity of the workers are reduced, and the sewage discharge equipment capacity and the service life of the parts are increased.

[0019] 2. The stainless steel filter adopted by the utility model can be reused, and the flange connection mode ensures the connection versatility with other equipment.

[0020] 3、The utility model discloses simple structure and only one nylon sealing plate of damaged part, save the report of spare parts, save the stock pressure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic diagram of example 1;

[0022] Figure 2 It is the structure schematic diagram of upper sealing plate cooperation hole plate;

[0023] Figure 3 It is the structure schematic diagram of lower sealing plate cooperation hole plate;

[0024] Figure 4 It is the schematic diagram of example 1 non - working state;

[0025] Figure 5 It is the schematic diagram of example 1 working state;

[0026] In the drawing, 1-transition joint;101-second connecting flange;2-first stainless steel filter;201-first connecting flange;4-pumping pipe;5-filter sealing plate;

[0027] 6-upper sealing plate cooperation hole plate;601-upper water outlet through -hole;7-lower sealing plate cooperation hole plate;701-lower water outlet through -hole;8-fixing pin;9-nylon sealing plate;10-stainless steel spring. DETAILED DESCRIPTION

[0028] In order to further disclose the content, characteristics and effects of the present application, the following examples are given and described in detail in combination with the drawings. In the description of the following examples, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present patent and simplifying the description, and therefore cannot be understood as limiting the present patent in terms of indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present patent.

[0029] In the description of the following examples, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For ordinary skilled in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0030] Example 1: refer to the drawingsFigures 1-5 A sewage pump bottom valve filtration device includes a first stainless steel filter 2 and a transition joint 1 connected to a water pumping pipe 4 at the top. The bottom of the transition joint 1 is connected to the first stainless steel filter 2, one end of the first stainless steel filter 2 is connected to the transition joint 1, and the other end is connected to a filter sealing plate 5. An upper sealing plate mating orifice plate 6 and a lower sealing plate mating orifice plate 7 are fixedly installed inside the transition joint 1. There is a gap between the upper sealing plate mating orifice plate 6 and the lower sealing plate mating orifice plate 7, and a nylon sealing plate 9 is movably installed between them by a fixing pin 8. One end of the fixing pin 8 is movably installed in the middle of the upper sealing plate mating orifice plate 6, and the other end is fixedly installed with the nylon sealing plate 9 and extends into the lower water outlet through hole 701 in the middle of the lower sealing plate mating orifice plate 7. A stainless steel spring 10 is provided between the top of the nylon sealing plate 9 and the bottom of the upper sealing plate mating orifice plate 6, and the stainless steel spring 10 is wound around the fixing pin 8.

[0031] The main body of the first stainless steel filter 2 is a hollow cylindrical shape, and the cylindrical wall is provided with uniformly spaced filter holes. The filter holes are vertically elongated rectangular to facilitate the introduction of fine debris into the filter for subsequent cleaning. Both ends of the main body of the first stainless steel filter 2 are provided with first connecting flanges 201. Both ends of the transition joint 1 are provided with second connecting flanges 101, which are bolted to either the water suction pipe 4 or the first connecting flanges 201.

[0032] like Figures 2-3 As shown, the diameter of the upper water outlet hole 601 on the upper sealing plate mating orifice plate 6 is smaller than the diameter of the lower water outlet hole 701 on the lower sealing plate mating orifice plate 7. The lower water outlet hole 701 is distributed within the area covered by the nylon sealing plate 9.

[0033] The diameter of the nylon sealing plate 9 is smaller than the inner diameter of the transition joint 1 body. The thickness of the nylon sealing plate 9 is smaller than the distance between the upper sealing plate mating hole plate 6 and the lower sealing plate mating hole plate 7. The length of the fixing pin 8 is greater than the distance between the upper sealing plate mating hole plate 6 and the lower sealing plate mating hole plate 7.

[0034] Working principle: such as Figure 4 As shown, when this device is not in operation, the nylon sealing plate 9, under the action of the stainless steel spring 10, fits against the lower sealing plate and the orifice plate 7, preventing water leakage below the sewage pump and ensuring a tight seal; Figure 5As shown, after the sewage pump is started, the device starts to work, the sewage flows upward under the suction of the pump, the nylon sealing plate 9 is pushed upward, the fixed pin 8 is moved upward to extrude the stainless steel spring 10 and is in the lifted state, and the sewage continuously passes through.

[0035] Although the preferred embodiments of the present application are described above, the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms without departing from the spirit of the present application and the scope of protection of the claims under the inspiration of the present application. These all belong to the protection scope of the present application.

Claims

1. A sewage pump foot valve filter device, characterized in that: The device includes a stainless steel filter and a transition joint for connecting a top-mounted water pump pipe. The bottom of the transition joint is connected to the stainless steel filter, and an upper sealing plate and a lower sealing plate are fixedly installed inside the transition joint. A gap exists between the upper and lower sealing plates, and a nylon sealing plate is movably installed between them via a fixing pin. One end of the fixing pin is movably installed in the middle of the upper sealing plate, and the other end is fixed to the nylon sealing plate and extends into the lower water outlet hole in the middle of the lower sealing plate. A stainless steel spring is provided between the top of the nylon sealing plate and the bottom of the upper sealing plate, and the stainless steel spring is wound around the fixing pin.

2. The sewage pump foot valve filter device according to claim 1, characterized in that: The main body of the stainless steel filter is in the shape of a hollow cylinder, and the cylinder wall is provided with uniform filter holes; both ends of the main body of the stainless steel filter are provided with a first connecting flange.

3. The sewage pump foot valve filter device according to claim 2, characterized in that: The filter holes are vertically elongated rectangular in shape.

4. The sewage pump foot valve filter device according to claim 2, characterized in that: The stainless steel filter is connected to a transition joint at the upper end and a filter sealing plate at the lower end.

5. A sewage pump foot valve filter device according to claim 2, characterized in that: The transition joint is provided with a second connecting flange at both ends, and the second connecting flange is connected to the water pipe or the first connecting flange by bolts.

6. The sewage pump foot valve filter device according to claim 1, characterized in that: The diameter of the upper water outlet hole on the upper sealing plate mating orifice plate is smaller than the diameter of the lower water outlet hole on the lower sealing plate mating orifice plate.

7. The sewage pump foot valve filter device according to claim 6, characterized in that: The distribution range of the lower water outlet holes is within the area covered by the nylon sealing plate.

8. The sewage pump foot valve filter device according to claim 7, characterized in that: The diameter of the nylon sealing plate is smaller than the inner diameter of the transition joint body.

9. The sewage pump foot valve filter device according to claim 1, characterized in that: The thickness of the nylon sealing plate is less than the distance between the upper sealing plate mating orifice and the lower sealing plate mating orifice.

10. The sewage pump foot valve filter device according to claim 9, characterized in that: The length of the fixing pin is greater than the distance between the upper sealing plate mating orifice and the lower sealing plate mating orifice.

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