Filtering device of self-priming water pump

Abstract

The utility model relates to the technical field of water suction pumps, discloses a filtering device of a self-suction water pump, and solves the problem that the working efficiency is influenced as the filtering device of the conventional self-suction water pump needs to be shut down when a filtering basket is cleaned or replaced. The filtering device comprises an upper cylinder body, a lower cylinder body, a first filtering cylinder, a second filtering cylinder, a connecting pipe, a water inlet pipe, a water drainage pipe and a flow direction switching mechanism. The flow direction switching mechanism comprises an I-shaped shaft seat, a round valve plate, a crank, a cross rod and a grip, and the interior of the barrel can be sealed or opened by the round valve plate by operating the grip, so that the water flow direction is controlled. The filter basket is installed in the filter cylinder through the clamping grooves and the limiting strips, grading filter holes are formed in the side wall, a handle is arranged at the top end, and a compression spring and a contact pin are arranged at the bottom. A pressure sensor is arranged at the edge of the inner bottom surface of the first filter cartridge. According to the filtering device, the filtering basket can be cleaned or replaced under the non-stop condition, the continuous operation of the filtering device is ensured, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water suction pump technical field, concretely is a kind of filter device of self-priming water pump. BACKGROUND

[0002] Self-priming pump belongs to self-priming centrifugal pump, in some application scenarios, for example, when pumping well water, water can contain silt and other impurities, these impurities not only cause water quality to drop, but also easily block the filter screen of self-priming pump, reduce the water delivery capacity of self-priming pump, and the silt with smaller particles is also easy to wear the internal structure of self-priming pump after passing through the filter screen, reduce the service life of self-priming pump, so it is necessary to filter self-priming water pump.

[0003] The existing Chinese patent with publication number CN217632950U discloses a kind of anti-blocking self-cleaning sewage pump, this anti-blocking self-cleaning sewage pump mainly by sewage pump body, water suction pipe, drive motor, shaft, connecting rod, sealing bearing, filter cover, cleaning brush, anti-blocking cover and other components are constituted, when working, anti-blocking cover and filter cover one end are put into water, start drive motor, motor drives shaft, impeller and connecting rod rotate, impeller generates water suction force and makes sewage be sucked into water suction pipe through anti-blocking cover and filter cover filter hole, simultaneously, connecting rod drives cleaning brush to rotate, outer brush and inner brush of cleaning brush clean anti-blocking cover and filter cover respectively, although the sewage pump has anti-blocking self-cleaning function, but the impurities filtered out are not treated, long-term use can affect filtering and cleaning effect, cause impurities to accumulate at anti-blocking cover and filter cover, need to stop when cleaning accumulation, affect work efficiency problem.

[0004] For the above-mentioned related technology, a filter device for a self-priming water pump is now provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of filter device of self-priming water pump, work is carried out using this device, to solve the problem that existing self-priming water pump filter device needs to stop when washing or replacing filter basket, affect work efficiency.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of filter device of self-priming water pump, including upper cylinder and lower cylinder, the flange of upper cylinder both ends is fixedly connected with first filter cylinder and second filter cylinder by bolt respectively, two connecting pipes are communicated and arranged on first filter cylinder and second filter cylinder, connecting pipe is divided into upper connecting pipe and lower connecting pipe, wherein the upper connecting pipe of first filter cylinder and second filter cylinder is communicated with upper cylinder, the flange of lower connecting pipe of first filter cylinder and second filter cylinder is fixedly communicated with lower cylinder by bolt, the middle part of upper cylinder is fixedly communicated with inlet pipe, the middle part of lower cylinder is fixedly connected with drain pipe.The communication place of first filter cylinder and second filter cylinder and upper cylinder and lower cylinder is equipped with flow direction switching mechanism.

[0007] The flow direction switching mechanism comprises two I-shaped shaft seats, both of which are rotationally connected at the flange connection of the upper cylinder and the lower cylinder, both ends of the middle shaft rod of the I-shaped shaft seat extend into the inside of the upper cylinder and the lower cylinder, and the end of the middle shaft rod of the I-shaped shaft seat is fixedly provided with a circular valve piece, both of which are rotationally arranged on the inner wall of the cylinder of the upper cylinder and the lower cylinder, and the circular valve piece can seal the inside of the cylinder when rotating by 90 degrees or 180 degrees, the middle outer wall of both I-shaped shaft seats is fixedly connected with a crank, the other end of both cranks is movably connected with a cross rod through a connecting piece, one end of the cross rod connected with the crank is fixedly provided with a handle, and the handle is provided with anti-skid lines.

[0008] Preferably, the first filter cartridge and the second filter cartridge are both π-shaped structure pipe cartridges, the internal components are the same, and are symmetrically arranged on both sides of the upper cylinder and the lower cylinder.

[0009] Preferably, the inner wall of the first filter cartridge and the second filter cartridge is circumferentially distributed with three clamping grooves, and the bottom surface of the clamping groove is higher than the inner bottom surface of the first filter cartridge and the second filter cartridge.

[0010] Preferably, a filter basket is slidably connected in the clamping groove, a limiting strip is fixedly arranged on the outer wall of the filter basket at the position corresponding to the clamping groove, and the limiting strip is embedded with the clamping groove.

[0011] Preferably, the side wall of the filter basket is uniformly provided with a plurality of graded filter holes, and the hole size of the graded filter hole gradually decreases along the height direction of the filter basket.

[0012] Preferably, a handle is movably connected to the top end of the filter basket.

[0013] Preferably, a compression spring is fixedly arranged at the bottom end of the limiting strip, and the other end of the compression spring is fixedly connected with the inner bottom surface of the first filter cartridge.

[0014] Preferably, a pressure sensor is fixedly arranged at the inner bottom surface edge of the first filter cartridge, and the pressure sensor is electrically connected with an external control panel.

[0015] Preferably, a plurality of insertion pins are fixedly arranged at the inner bottom surface of the first filter cartridge, and the insertion pins are matched with the holes at the bottom end of the filter basket.

[0016] Preferably, the filter basket is located below the communication position of the first filter cartridge, the second filter cartridge and the upper cylinder.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The filter device of the self-priming water pump, the flow direction switching mechanism is arranged, water flow can be guided to another filter cartridge when the filter basket is cleaned or replaced, and continuous operation of the filter device is ensured. At the same time, the circular valve piece can seal the inside of the cylinder body when it rotates by 90 degrees or 180 degrees, ensuring the accuracy and reliability of the flow direction switching.

[0019] 2. The filter device of the self-priming water pump, the filter basket is uniformly provided with a plurality of graded filter holes in the side wall, the hole size of the graded filter holes gradually decreases along the height direction of the filter basket, and the graded filter holes can realize the graded filtration of impurities of different sizes, thereby improving the filtration effect. In addition, the handle at the top end of the filter basket facilitates the removal and cleaning of the filter basket, thereby improving the convenience of operation. BRIEF DESCRIPTION OF DRAWINGS

[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 first filter cartridge structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the filter basket structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the flow direction switching mechanism structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the bottom structure of the utility model.

[0025] In the drawing: 1, upper cylinder; 11, first filter cartridge; 12, second filter cartridge; 120, clamping groove; 2, lower cylinder; 3, water inlet pipe; 4, drain pipe; 5, connecting pipe; 51, upper connecting pipe; 52, lower connecting pipe; 6, flow direction switching mechanism; 61, I-shaped shaft seat; 62, circular valve piece; 63, crank; 64, cross rod; 65, handle; 7, filter basket; 70, graded filter hole; 71, limiting strip; 72, handle; 73, compression spring; 74, pressure sensor; 8, pin. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0028] Combine Figures 1-5 , a filtering device of a self-priming water pump comprises an upper cylinder 1 and a lower cylinder 2, the flanges at both ends of the upper cylinder 1 are fixedly connected with a first filter cartridge 11 and a second filter cartridge 12 by bolts respectively, and the first filter cartridge 11 and the second filter cartridge 12 are both connected with two connecting pipes 5, the connecting pipe 5 is divided into an upper connecting pipe 51 and a lower connecting pipe 52, wherein the upper connecting pipe 51 of the first filter cartridge 11 and the second filter cartridge 12 is connected to the upper cylinder 1, and the flanges of the lower connecting pipe 52 of the first filter cartridge 11 and the second filter cartridge 12 are fixedly connected with the lower cylinder 2 by bolts, the middle part of the upper cylinder 1 is fixedly connected with a water inlet pipe 3, and the middle part of the lower cylinder 2 is fixedly connected with a drain pipe 4. A flow direction switching mechanism 6 is provided at the connection between the first filter cartridge 11 and the second filter cartridge 12 and the upper cylinder 1 and the lower cylinder 2; the flow direction switching mechanism 6 can conveniently control the direction of water flow. When the filter basket 7 needs to be cleaned or replaced, the water flow can be directed to another filter cartridge through the flow direction switching mechanism 6 to ensure the continuous operation of the filtering device.

[0029] The flow direction switching mechanism 6 includes an I-type shaft seat 61. The two I-type shaft seats 61 are rotatably connected to the flange connection of the upper cylinder 1 and the lower cylinder 2. The two ends of the shaft rod in the middle of the I-type shaft seat 61 extend into the upper cylinder 1 and the lower cylinder 2 respectively. The ends of the shaft rod in the middle of the I-type shaft seat 61 are fixed with a circular valve plate 62, which provides a stable support for the rotation of the circular valve plate 62 and ensures the reliability of the flow direction switching. The two circular valve plates 62 are rotatably arranged on the inner wall of the cylinder of the upper cylinder 1 and the lower cylinder 2. The circular valve plate 62 can be rotated ninety degrees or one hundred and eighty degrees to the inside of the cylinder. In order to seal and control the direction of water flow, a crank 63 is fixedly connected to the middle outer wall of the two I-shaped shaft seats 61, and the other ends of the two cranks 63 are movably connected to a cross bar 64 through a connecting piece. One end of the cross bar 64 connected to the crank 63 is fixedly provided with a handle 65, and the handle 65 is provided with anti-slip grooves. By pushing the handle 65, one of the cranks 63 is driven to rotate, and at the same time, the cross bar 64 is used to push the other crank 63 to rotate, so that the circular valve disc 62 on one side is opened to the inside of the cylinder and the circular valve disc 62 on the other side is sealed to the inside of the cylinder, thereby realizing flow direction switching.

[0030] The first filter cartridge 11 and the second filter cartridge 12 are both π-shaped tubes, have the same internal components, and are symmetrically arranged on both sides of the upper cylinder body 1 and the lower cylinder body 2. The symmetrically arranged filter cartridge structure can improve the filtering efficiency and ensure uniform distribution of the water flow; three clamping grooves 120 are circumferentially distributed on the inner walls of the first filter cartridge 11 and the second filter cartridge 12, and the bottom surface of the clamping groove 120 is higher than the inner bottom surface of the first filter cartridge 11 and the second filter cartridge 12. The clamping groove 120 provides positioning and support for the installation of the filter basket 7, ensuring the stability of the filter basket 7; the filter basket 7 is slidably connected in the clamping groove 120, and a limiting strip 71 is fixedly arranged on the outer wall of the filter basket 7 at a position corresponding to the clamping groove 120, the limiting strip 71 is embedded in the clamping groove 120, and the limiting strip 71 ensures the stable sliding of the filter basket 7 in the clamping groove 120, preventing the filter basket 7 from falling off; the side wall of the filter basket 7 is uniformly provided with a plurality of graded filter holes 70, and the hole size of the graded filter hole 70 gradually decreases along the height direction of the filter basket 7; the graded filter hole 70 can realize the graded filtering of impurities of different sizes, improving the filtering effect; a handle 72 is movably connected to the top end of the filter basket 7; the handle 72 facilitates the removal and cleaning of the filter basket 7, improving the convenience of operation. The bottom end of the limiting strip 71 is fixedly provided with a compression spring 73, and the other end of the compression spring 73 is fixedly connected to the inner bottom surface of the first filter cartridge 11; the compression spring 73 can provide a certain buffering effect for the filter basket 7, preventing the filter basket 7 from being damaged under the impact of the water flow. A pressure sensor 74 is fixedly installed at the edge of the inner bottom surface of the first filter cartridge 11, and the pressure sensor 74 is electrically connected to the external control panel; the pressure sensor 74 can monitor the pressure change in the filter cartridge in real time, and when the pressure is too large, the filter basket 7 can be cleaned or replaced in time, ensuring the normal operation of the filtering device.

[0031] A plurality of insertion pins 8 are fixedly arranged at the middle part of the inner bottom surface of the first filter cartridge 11 in a circumferential direction, the insertion pins 8 are matched with the holes at the bottom end of the filter basket 7, the insertion pins 8 can further fix the filter basket 7, prevent the filter basket 7 from shaking under the impact of the water flow, and clean the blockage at the bottom end of the filter basket 7; the filter basket 7 is located below the communication position of the first filter cartridge 11, the second filter cartridge 12 and the upper cylinder body 1, and this position arrangement can ensure that the water flow passes through the filter basket 7 first and then enters the lower cylinder body 2.

[0032] Working principle: water from the inlet pipe 3 into the upper cylinder 1, through the handle 65 operation flow to the switching mechanism 6, round valve 62 rotation to achieve the sealing or open side of the cylinder inside, so that one-way flow to the first filter cartridge 11 or second filter cartridge 12. When the water flow through the first filter cartridge 11 or second filter cartridge 12 in the filter basket 7, the classification filter hole 70 on different size impurities classification filtration interception, when the impurities in the filter basket 7 to a certain degree, the filter basket 7 begins to slide along the card slot 120, constantly extruding compression spring 73 until the filter basket 7 bottom and pressure sensor 74 contact, at this time the signal feedback to the control panel of pressure sensor 74, prompt need to clean or replace the filter basket 7, then push the handle 65 drive one of the crank 63 rotation direction, while using the cross bar 64 with drive another crank 63 rotation direction, to achieve the flow direction switching, open the sealed side of the filter cartridge top cover to take out the filter basket 7 to be processed, while the open side of the filter cartridge still maintain the filtering operation state.

[0033] It should be noted that in this document, the terms "first" and "second" and similar terms are used only to distinguish one entity or action from another, and do not necessarily require or imply any actual relationship or order between or among these entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A filtering device for a self-priming water pump, comprising an upper cylinder (1) and a lower cylinder (2), wherein flanges at both ends of the upper cylinder (1) are fixedly connected to a first filter cartridge (11) and a second filter cartridge (12) by bolts, and the first filter cartridge (11) and the second filter cartridge (12) are both connected with two connecting pipes (5), and the connecting pipes (5) are divided into an upper connecting pipe (51) and a lower connecting pipe (52), wherein the upper connecting pipe (51) of the first filter cartridge (11) and the second filter cartridge (12) is connected to the upper cylinder (1), and the flanges of the lower connecting pipe (52) of the first filter cartridge (11) and the second filter cartridge (12) are fixedly connected to the lower cylinder (2) by bolts, the middle of the upper cylinder (1) is fixedly connected to a water inlet pipe (3), and the middle of the lower cylinder (2) is fixedly connected to a drain pipe (4), characterized in that: A flow direction switching mechanism (6) is provided at the connection points between the first filter cartridge (11) and the second filter cartridge (12) and the upper cylinder (1) and the lower cylinder (2); The flow direction switching mechanism (6) includes an I-type shaft seat (61), and the two I-type shaft seats (61) are both rotatably connected to the flange connection of the upper cylinder (1) and the lower cylinder (2), and the two ends of the shaft rod in the middle of the I-type shaft seat (61) extend into the upper cylinder (1) and the lower cylinder (2), respectively. The ends of the shaft rod in the middle of the I-type shaft seat (61) are fixed with round valve plates (62), and the two round valve plates (62) are rotatably arranged on the upper cylinder (1). ) and the inner wall of the cylinder of the lower cylinder (2), the circular valve plate (62) can seal the inside of the cylinder when it rotates ninety degrees or one hundred and eighty degrees, and a crank (63) is fixedly connected to the middle outer wall of the two I-shaped shaft seats (61). The other ends of the two cranks (63) are movably connected to a cross bar (64) through a connecting piece, and one end of the cross bar (64) connected to the crank (63) is fixedly provided with a handle (65), and the handle (65) is provided with anti-slip lines.

2. The filtering device of a self-priming water pump according to claim 1, characterized in that: The first filter cartridge (11) and the second filter cartridge (12) are both tubes with a π-shaped structure, have the same internal components, and are symmetrically arranged on both sides of the upper cylinder (1) and the lower cylinder (2).

3. The filtering device of a self-priming water pump according to claim 1, characterized in that: Three slots (120) are circumferentially distributed on the inner walls of the first filter cartridge (11) and the second filter cartridge (12), and the bottom surfaces of the slots (120) are higher than the inner bottom surfaces of the first filter cartridge (11) and the second filter cartridge (12).

4. The filtering device of a self-priming water pump according to claim 3, characterized in that: A filter basket (7) is slidably connected in the slot (120), and a limiting strip (71) is fixedly provided on the outer wall of the filter basket (7) at a position corresponding to the slot (120), and the limiting strip (71) is engaged with the slot (120).

5. The filtering device of a self-priming water pump according to claim 4, characterized in that: The side wall of the filter basket (7) is evenly provided with graded filter holes (70), and the hole sizes of the graded filter holes (70) decrease step by step along the height direction of the filter basket (7).

6. The filtering device of a self-priming water pump according to claim 4, characterized in that: The top end of the filter basket (7) is movably connected to a handle (72).

7. The filtering device of a self-priming water pump according to claim 4, characterized in that: A compression spring (73) is fixedly provided at the bottom end of the limiting strip (71), and the other end of the compression spring (73) is fixedly connected to the inner bottom surface of the first filter cartridge (11).

8. The filtering device of a self-priming water pump according to claim 1, characterized in that: A pressure sensor (74) is fixedly mounted on the edge of the inner bottom surface of the first filter cartridge (11), and the pressure sensor (74) is electrically connected to an external control panel.

9. The filtering device of a self-priming water pump according to claim 4, characterized in that: Insertion pins (8) are fixedly provided on the central circumference of the inner bottom surface of the first filter cartridge (11), and the insertion pins (8) are adapted to the holes at the bottom end of the filter basket (7).

10. The filtering device of a self-priming water pump according to claim 4, characterized in that: The filter basket (7) is located below the connection point between the first filter cartridge (11) and the second filter cartridge (12) and the upper cylinder (1).

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