CN207286853U - A kind of novel self-cleaning filtration device before pump - Google Patents

Abstract

The utility model discloses a novel filter device in front of a self-cleaning pump, which comprises a cylindrical filter screen (1), and is characterized in that the cylindrical filter screen (1) at least includes a cover A (1‑2), B (1‑3) and the filter body (1‑1), the cover A (1‑2) is provided with a fixed shaft (10), and the cover B (1‑3) is provided with an outlet pipe B(4), a bracket (7‑2) is provided between the fixed shaft (10) and the outlet pipe B (4), and the cylindrical filter screen (1) can be connected with the fixed shaft (10) and the outlet pipe B ( 4) For shaft rotation, a cleaning mechanism (9) is fixed in the cavity of the cylindrical filter screen (1), and at least two fan blades ( 8), the fan blade (8) can drive the cylindrical filter screen (1) to rotate under the impact of the water flow. Compared with the prior art, the utility model has a simple and compact structure and can better accomplish the purpose of self-cleaning without adding a driving mechanism.

Description

A new self-cleaning pump pre-filter device

technical field

The utility model relates to a novel filter device before a self-cleaning pump, which belongs to the technical field of filter equipment.

Background technique

Due to the depletion of water resources, how to effectively use water resources has become an urgent problem to be solved by all water industries in society, and the water consumption of agricultural irrigation accounts for a large part of domestic water, although agricultural irrigation in recent years has basically tended to Drip irrigation saves a lot of irrigation water, but drip irrigation has high requirements for water, and the impurities in the water must be strictly controlled. Therefore, it is required to filter the water quality before irrigation to avoid clogging the drip irrigation belt. During the use of the device, impurities in the water will accumulate on the filter net, thereby affecting the filtration of irrigation water.

In order to solve the above-mentioned technical problems, there are some self-cleaning pre-pump filter devices on the market. Most of these filter devices are equipped with cleaning mechanisms inside and/or outside the filter cartridge, and the cleaning mechanism rotates under the drive of the drive mechanism. To clean the filter screen wall, and the filter cartridge is static, but during the working process of the filter device, a large part of the impurities in the water are directly attached to the outside of the filter cartridge, but the existing self- The self-cleaning effect of the filter device before cleaning the pump is not ideal, and an additional driving mechanism is required, which not only complicates the working process, but also increases the production cost.

Therefore, a new type of self-cleaning pre-pump filter device that has a simple and compact structure and can better accomplish the purpose of self-cleaning without adding a new driving mechanism is proposed.

Contents of the invention

The purpose of this utility model is to provide a new self-cleaning pump front filter device.

In order to achieve the above object, the utility model provides the following technical solutions:

A new self-cleaning pump front filter device, including a cylindrical filter (1), characterized in that the cylindrical filter (1) at least includes a cover A (1-2), a cover B (1-3 ) and the filter body (1-1), and the filter body (1-1) is connected with the upper and lower covers to form a cavity, and the cover A (1-2) is provided with a fixed shaft (10) , the cover body B (1-3) is provided with an outlet pipe B (4), a bracket (7-2) is provided between the fixed shaft (10) and the outlet pipe B (4), and the cylindrical filter The net (1) can rotate around the fixed shaft (10) and the outlet pipe B (4), and a cleaning mechanism (9) is fixed in the cavity of the cylindrical filter screen (1), and the cleaning mechanism (9) At least include a brush (9-1), the brush (9-1) is a strip and axially attached to the inner wall of the filter screen body (1-1), and the brush (9-1) is relatively fixed to the shaft ( 10) and the outlet pipe B (4) are stationary, and at least two fan blades (8) are arranged at the opposite position on the outside of the filter screen body (1-1), and the fan blades (8) can withstand the impact of the water flow. Drive cylinder filter screen (1) to rotate.

Further, it also includes a water pump (2), the above-mentioned outlet pipe B (4) is the water inlet pipe of the water pump (2), and the other end of the water pump (2) is provided with an outlet pipe A (3), and the outlet pipe A (3) is provided with a return pipe (5), and the mouth of the free end of the return pipe (5) faces the fan blade (8). At this time, water with a certain pressure flowing out from the outlet pipe (5) impacts the fan blade ( 8), providing energy to make the fan blade (8) drive the cylindrical filter screen (1) to rotate.

Further, the cleaning mechanism (9) also includes a connecting rod (9-2), the connecting rod (9-2) is a rod-shaped body and the brush (9-1) is fixedly connected to the outlet pipe B (4) And on the fixed shaft (10).

Further, the cover A (1-2) is connected to the fixed shaft (10) and the cover B (1-3) is connected to the outlet pipe B (4) through bearings (6-1).

Further, fixed welding, fixed riveting, thread One or both of connections or screw connections.

During actual use: the support (7-2) is provided with a base (7-1) to fix the cylindrical filter (1) and put it into the pool, preferably the horizontal surface of the cover A (1-2) It is higher than the water surface. When working, the impurities in the pool are blocked by the filter body (1-1), and the impurity-free water enters the cavity of the cylindrical filter (1), and then flows through the water pump (2). The filtered water flows into the water pump (2) through the water inlet B (4-2) of the water outlet pipe B (4), and flows out from the water outlet pipe A (3) arranged at the other end of the water pump (2). A small part of the water flows to the return pipe (5), and because the diameter of the return pipe (5) is small, the water pressure from the return pipe (5) increases, and the water flow will have a certain impact on the fan blade (8). Under the action of this impact force, the fan blade (8) will drive the cylindrical filter screen (1) to rotate around the fixed shaft (10) and the outlet pipe A (3), and because the brush (9-1) is also fixed on the fixed shaft (10) and on the outlet pipe A (3), therefore, the brush (9-1) is also fixed, and during the rotation of the cylindrical filter screen (1), on the one hand, the brush (9-1) ) can clean the inner wall of the filter screen body (1-1), while on the outside, due to the rotation of the cylindrical filter screen (1) itself, the impurities attached to the outer wall of the filter screen body (1-1) will be due to the centrifugal force The role of the filter body (1-1) is far away from the screen body (1-1), and the eddy current generated by the movement of the fan blade (8) will also keep impurities away from the filter screen body (1-1), so that the self-cleaning of the filter device is more thorough.

Further, the free end of the water return pipe (5) is provided with a trumpet-shaped water outlet (5-2).

Furthermore, the return pipe (5) is provided with a return valve (5-1), and the return valve (5-1) is an automatic control valve. When working, the automatic control valve can be spaced The opening and closing of the cylinder can achieve the purpose of saving water under the premise of ensuring that sufficient power can be provided to rotate the cylindrical filter screen (1).

As an improvement, the outlet pipe B (4) is a tubular body with one end closed, and the outlet pipe B (4) is located in the cavity of the cylindrical filter (1) and connected to the cover A (1-2) and the cover B respectively. (1-3) are connected by bearings (6-1), and the outlet pipe B (4) is located on the wall of the cylinder filter (1) with multiple water inlets A (4-1);

In actual use, under the impact of the water flow, the water outlet pipe B (4) is fixed, and the fan blade (8) drives the cylindrical filter screen (1) to rotate around the water outlet pipe B (4) as the axis. The filtered water of the main body (1-1) flows into the water outlet pipe B (4) from the water inlet A (4-1).

Compared with the prior art, the utility model has a simple and compact structure, and can better complete the self-cleaning work without adding a driving mechanism.

Description of drawings

Fig. 1 is the structural representation when the utility model working state;

Fig. 2 is the structural representation of filter device of the present utility model;

Fig. 3 is a top view of Fig. 2, the large arrow in the figure indicates the rotation direction of the cylindrical filter screen, and the small arrow indicates the water flow direction of the water outlet;

Fig. 4 is the structural representation of the utility model embodiment 2;

As shown in the figure: 1 is the cylindrical filter, 1-1 is the filter body, 1-2 is the cover A, 1-3 is the cover B, 2 is the water pump, 3 is the outlet pipe A, 4 is the outlet pipe B, 4-1 is the water inlet A, 4-2 is the water inlet B, 5 is the return pipe, 5-1 is the return valve, 5-2 is the water outlet, 6-1 is the bearing, 6-2 is the bearing seat, 7-1 is a base, 7-2 is a support, 8 is a fan blade, 9 is a cleaning mechanism, 9-1 is a brush, 9-2 is a connecting rod, and 10 is a fixed shaft.

Detailed ways

Preferred embodiments of the present utility model will be described in detail below.

Embodiment 1: With reference to Figures 1 to 3, it is a schematic structural view of Embodiment 1 of the present utility model,

Including a cylindrical filter 1, the cylindrical filter 1 at least includes a cover A1-2, a cover B1-3 and a filter body 1-1, and between the filter body 1-1 and the upper and lower covers A cavity is formed by fixed connections such as welding or riveting, the cover A1-2 is provided with a fixed shaft 10, the cover B1-3 is provided with a water outlet pipe B4, and the cover A1-2 and the fixed shaft 10 and the cover B1-3 and the outlet pipe B4 are connected by a bearing 6-1, a support 7-2 is provided between the fixed shaft 10 and the outlet pipe B4, and the cylindrical filter screen 1 can be fixed with the shaft 10 And the outlet pipe B4 is a shaft rotation, the cavity of the cylindrical filter screen 1 is fixed with a cleaning mechanism 9, the cleaning mechanism 9 includes a brush 9-1 and a connecting rod 9-2, and the brush 9-1 is a bar Shaped body and axially attached to the inner wall of the filter screen body 1-1, the connecting rod 9-2 is a rod-shaped body and the brush 9-1 is fixedly connected to the outlet pipe B4 and the fixed shaft 10, which is the brush 9-1 1 is stationary relative to the fixed shaft 10 and the outlet pipe B4, and at least two fan blades 8 are arranged on the opposite side of the filter screen body 1-1, and the fan blades 8 can drive the cylindrical filter screen under the impact of the water flow 1 turn;

Also includes a water pump 2, the above-mentioned water outlet pipe B4 is the water inlet pipe of the water pump 2, the other end of the water pump 2 is provided with a water outlet pipe A3, and the water outlet pipe A3 is provided with a return pipe 5, and the free end of the return pipe 5 There is a horn-shaped water outlet 5-2 and the water outlet 5-2 faces the fan blade 8. During work, the water flow with a certain pressure in the water outlet pipe 5 flows out from the water outlet 5-2 and impacts the fan blade 8 to provide energy, so that The fan blade 8 drives the cylindrical filter screen 1 to rotate;

The above-mentioned return pipe 5 is provided with a return valve 5-1, and the return valve 5-1 is an automatic control valve. When working, the automatic control valve can be opened and closed at intervals to ensure that sufficient power can be provided. On the premise of rotating the cylindrical filter screen 1, the purpose of saving water is achieved.

In actual use: the support 7-2 is provided with a base 7-1, which can fix the cylindrical filter screen 1 and put it into the pool, so that the level of the cover A1-2 is higher than the water surface. During work, impurities in the pool Blocked under the action of the filter body 1-1, the impurity-free water enters the cavity of the cylindrical filter 1, and then the filtered water passes through the water inlet B4-2 of the outlet pipe B4 under the action of the water pump 2 It flows into the water pump 2 and flows out from the outlet pipe A3 arranged at the other end of the water pump 2, a small part of which flows to the return pipe 5, and because the diameter of the return pipe 5 is small, the water pressure from the return pipe 5 increases, The water flow will produce a certain impact force on the fan blade 8. Under the effect of this impact force, the fan blade 8 will drive the cylindrical filter screen 1 to rotate around the fixed shaft 10 and the outlet pipe A3, and because the brush 9-1 is also fixed on the fixed On the shaft 10 and the water outlet pipe A3, therefore, the brush 9-1 is stationary relative to the fixed shaft 10 and the water outlet pipe A. During the rotation of the cylindrical filter screen 1, on the one hand, the brush 9-1 can move the filter screen The inner wall of the main body 1-1 is cleaned, and on the outside, due to the rotation of the cylindrical filter screen 1 itself, the impurities attached to the outer wall of the filter screen main body 1-1 will be far away from the filter screen main body 1-1 due to centrifugal force. Moreover, the eddy current generated by the movement of the fan blade 8 will also keep impurities away from the filter screen body 1-1, making the self-cleaning of the filter device more thorough.

Embodiment 2: Referring to Fig. 4, it is a schematic structural diagram of Embodiment 2 of the present utility model. Compared with Embodiment 1, the difference of this embodiment is that the outlet pipe B4 is a tubular body with one end closed, and the outlet pipe B4 is located at The cylinder filter 1 cavity is connected with the cover A1-2 and the cover B1-3 respectively through the bearing 6-1, and the filter body 1-1 and the upper and lower covers are tightened by threads, screws, etc. The detachable connection of the firmware forms a cavity, and the outlet pipe B4 is located on the wall of the cylindrical filter 1 with multiple water inlets A4-1. When working, the water flow in the return pipe 5-2 impacts the fan blades 8. The outlet pipe B4 is fixed, and the fan blade 8 drives the cylindrical filter 1 to rotate around the outlet pipe B4, and the water filtered by the filter body 1-1 flows into the outlet pipe B4 from the water inlet A4-1 .

What has been described is only the preferred embodiment of the present utility model, and it should be pointed out that those skilled in the art can make several changes and improvements without departing from the inventive concept of the present utility model, and these all belong to Protection scope of the present utility model.

Claims (9)

1. a kind of novel self-cleaning filtration device before pump, including cylinder leaching net (1), it is characterised in that the cylinder leaching net (1) is extremely Lid A (1-2), lid B (1-3) and strainer body (1-1) are included less, and strainer body (1-1) is connected with upper and lower two lids A cavity is formed, the lid A (1-2) is equipped with fixing axle (10), and the lid B (1-3) is equipped with outlet pipe B (4), institute State and stent (7-2) is equipped between fixing axle (10) and outlet pipe B (4), and cylinder leaching net (1) can be with fixing axle (10) and water outlet Pipe B (4) rotates for axis, is fixed with cleaning mechanism (9) in the cavity of the cylinder leaching net (1), the cleaning mechanism (9) is at least Comprising brush (9-1), the brush (9-1) is set for the inner wall of strip shape body and axial fitting strainer body (1-1), and brush (9-1) is static relative to fixing axle (10) and outlet pipe B (4), and the position that the outside of the strainer body (1-1) is opposite is at least set There are two flabellums (8), the flabellum (8) can drive cylinder leaching net (1) to rotate under the impact of current.

2. novel self-cleaning filtration device before pump as claimed in claim 1, it is characterised in that further include：Water pump (2), it is above-mentioned Outlet pipe B (4) is the water inlet pipe of water pump (2), and the other end of the water pump (2) is equipped with outlet pipe A (3), the outlet pipe A (3) it is equipped with return pipe (5), mouth of pipe outflow impact flabellum (8) of the current in the return pipe (5) from free end.

3. novel self-cleaning filtration device before pump as claimed in claim 2, it is characterised in that the return pipe (5) is equipped with Back-water valve (BWV) (5-1), the back-water valve (BWV) (5-1) are autocontrol valve.

4. novel self-cleaning filtration device before pump as claimed in claim 2, it is characterised in that the freedom of the return pipe (5) End is equipped with horn-like water outlet (5-2).

5. the novel self-cleaning filtration device before pump as described in claim 1,2,3 or 4, it is characterised in that the lid A (1- 2) between strainer body (1-1) and lid B (1-3) and strainer body (1-1) it is fixed welding, fixed riveting, screw thread company Connect or screw connection one or both of.

6. the novel self-cleaning filtration device before pump as described in claim 1,2,3 or 4, it is characterised in that the cleaning mechanism (9) connecting rod (9-2) is further included, brush (9-1) for rhabodoid and is fixedly connected on outlet pipe B (4) by the connecting rod (9-2) In fixing axle (10).

7. the novel self-cleaning filtration device before pump as described in claim 1,2,3 or 4, it is characterised in that the lid A (1- 2) it is connected between fixing axle (10) and lid B (1-3) and outlet pipe B (4) by bearing (6-1).

8. the novel self-cleaning filtration device before pump as described in claim 1,2,3 or 4, it is characterised in that the lid A (1- 2) it is connected with fixing axle (10) and lid B (1-3) with outlet pipe B (4) by bearing (6-1).

9. the novel self-cleaning filtration device before pump as described in claim 1,2,3 or 4, it is characterised in that the outlet pipe B (4) it is the tubular body of one end closure, and outlet pipe B (4) be located in cylinder leaching net (1) cavity and respectively with lid A (1-2) and covering Body B (1-3) connections, and the tube wall that outlet pipe B (4) is located in cylinder leaching net (1) cavity is equipped with multiple water inlet As (4-1).