CN206368857U - A kind of pump front filter - Google Patents

Abstract

The utility model relates to a filter in front of a pump, which is enclosed by a cage bottom, a cage body and a cage top. The cage top and cage bottom are respectively installed at the upper end and the lower end of the cage body. Circular solid shape, the cage body is cylindrical; the middle part of the cage top is penetratingly provided with a through groove communicating with the cage body, and the middle part of the cage top extends upward to form a water outlet pipe connected to the pump suction port; The cage body includes an outer cage body and an inner cage body arranged coaxially, the filtration granularity of the outer cage body is larger than that of the inner cage body, and the outer cage body is formed by laying steel sheets along the horizontal and vertical directions, so The inner cage is braided by steel wires; the bottom of the cage is provided with at least two sewage outlets communicating with the outer cage, and valve blind plates are provided at the sewage outlets. The utility model relates to a filter in front of a pump, which is simple in structure, easy to manufacture, low in manufacturing cost, less in maintenance cost, high in filtering efficiency and reliable in filtering effect, and can ensure stable operation of the pump for a long time.

Description

A pre-pump filter

technical field

The utility model relates to the field of water pumps, in particular to a pre-pump filter.

Background technique

A submersible pump is a drainage machine in which the pump body and the motor can be immersed in water. When the submersible pump is working, it needs to pump water with a large flow rate. Due to the strong suction of the pump, it often absorbs a large amount of underground sediment into the pump, causing blockage of the pump pipeline, thereby affecting the pumping effect of the pump.

Utility model content

The utility model just aims at the deficiencies in the prior art, and provides a filter before the pump.

In order to solve the above problems, the technical scheme adopted by the utility model is as follows:

A pre-pump filter, which is enclosed by a cage bottom, a cage body and a cage top, the cage top and cage bottom are respectively installed on the upper and lower ends of the cage body, and the cage top and cage bottom are both round and solid , the cage body is cylindrical; the middle part of the cage top is penetratingly opened with a through groove communicating with the cage body, and the middle part of the cage top extends upwards to form a water outlet pipe connected to the pump suction port; the cage body It includes an outer cage body and an inner cage body arranged coaxially, the filtering granularity of the outer cage body is larger than that of the inner cage body, the outer cage body is made of steel sheets laid horizontally and vertically, and the inner cage body It is braided by steel wire; there are at least two sewage outlets connected with the outer cage on the bottom of the cage, and valve blind plates are provided at the sewage outlets.

Preferably, the bottom of the cage extends downwards to form a protrusion, and the sewage outlet is located on the protrusion.

Preferably, the valve blind plate and the cage bottom are connected by rivets.

Preferably, there are two sewage outlets, which are distributed symmetrically with respect to the axis of the cage.

The utility model compares with prior art, and the implementation effect of the utility model is as follows:

The whole filter is enclosed by the bottom of the cage, the body of the cage and the top of the cage. Its structure is simple, easy to manufacture, low in manufacturing cost and low in maintenance cost.

The cage body includes an outer cage body and an inner cage body arranged coaxially, the filtering granularity of the outer cage body is larger than that of the inner cage body, the outer cage body is made of steel sheets laid horizontally and vertically, and the inner cage body The cage body is woven by steel wire. This design can isolate larger organic or inorganic fragments outside the outer cage, and isolate smaller organic or inorganic fragments between the outer cage and the inner cage, and the filtered water flows out of the outlet pipe through the cage. It has high safety, high filtration efficiency and reliable filtration effect.

After working for a period of time, the impurities between the outer cage and the inner cage will continue to reduce the filtration efficiency. At this time, the blind plate of the valve can be opened to expose the sewage outlet, so as to discharge the impurities and ensure the filtration effect of the filter device.

Description of drawings

Fig. 1 is a schematic structural view of the pre-pump filter proposed by the utility model.

detailed description

The content of the present utility model will be described below in conjunction with specific embodiments.

As shown in Fig. 1, Fig. 1 is a structural schematic diagram of the pre-pump filter proposed by the utility model.

With reference to Fig. 1, the pre-pump filter proposed by the utility model is surrounded by a cage bottom 1, a cage body 2 and a cage top 3, and the cage top 3 and the cage bottom 1 are respectively installed at the upper end and the lower end of the cage body 2, The cage top 3 and the cage bottom 1 are solid circular, and the cage body 2 is cylindrical; the middle part of the cage top 3 is provided with a through groove communicating with the cage body 2. 3 The middle part extends upwards to form an outlet pipe 4 connected to the pump suction port; the cage body 2 includes an outer cage body 5 and an inner cage body 6 arranged coaxially, and the filtering granularity of the outer cage body 5 is larger than that of the inner cage body 6 The filter granularity, the outer cage 5 is formed by laying steel sheets along the horizontal and vertical directions, and the inner cage 6 is woven by steel wires; The sewage outlet 7 is provided with a valve blind plate 8 at the sewage outlet 7.

In the above solution, the whole filter is enclosed by the cage bottom 1, the cage body 2 and the cage top 3, and its structure is simple, easy to manufacture, low in manufacturing cost and low in maintenance cost.

The cage body 3 includes an outer cage body 5 and an inner cage body 6 arranged coaxially, the filtering granularity of the outer cage body 5 is greater than that of the inner cage body 6, and the outer cage body 5 is laid horizontally and vertically by steel sheets The inner cage body 6 is braided by steel wires. This design can isolate larger organic or inorganic fragments outside the outer cage body 5, and isolate smaller organic or inorganic fragments between the outer cage body 5 and the inner cage body. Between the cages 6, the filtered water flows out of the water outlet pipe 4 through the cage body 2. It has high safety, high filtration efficiency and reliable filtration effect.

After working for a period of time, the impurities between the outer cage body 5 and the inner cage body 6 will continue to reduce the filtration efficiency. At this time, the valve blind plate 8 can be opened to expose the sewage outlet 7, so as to discharge the impurities and ensure the filtration efficiency of the filter device. filter effect.

In order to reduce the influence of impurities between the outer cage body 5 and the inner cage body 6 on the filtering effect, the bottom of the cage 1 extends downward to form a protrusion, and the sewage outlet 7 is located on the protrusion. When filtering, the impurities fall on the sewage outlet 7 by their own weight. Since there is a gap between the protrusion and the cage body 2, the impurities are not easily exposed between the inner and outer cages, which ensures the filtering effect of the device.

In order to improve the reliability of the connection between the valve blind plate 8 and the cage bottom 1, and facilitate the disassembly of the valve blind plate 8, in the specific design, the valve blind plate 8 and the cage bottom 1 are connected by rivets.

In order to improve the sewage discharge efficiency of the device, in some embodiments, there are two sewage discharge outlets 7, which are symmetrically distributed with respect to the axis of the cage body 2 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. a pre-pump filter is characterized in that it is formed by enclosing the bottom of the cage, the cage body and the top of the cage, the top of the cage and the bottom of the cage are installed on the upper and lower ends of the cage body respectively, the top of the cage and the bottom of the cage They are all round and solid, and the cage body is cylindrical; the middle part of the cage top is penetrated with a through groove communicating with the cage body, and the middle part of the cage top extends upwards to form an outlet connected to the pump suction port. Water pipe; the cage body includes an outer cage body and an inner cage body arranged coaxially, the filtration granularity of the outer cage body is larger than that of the inner cage body, and the outer cage body is formed by laying steel sheets along the horizontal and vertical directions , the inner cage is braided by steel wire; at least two sewage outlets communicating with the outer cage are opened on the bottom of the cage, and valve blind plates are provided at the sewage outlets. 2 . The pre-pump filter according to claim 1 , wherein the bottom of the cage extends downward to form a protrusion, and the sewage outlet is located on the protrusion. 3 . 3. The pre-pump filter according to claim 1, characterized in that, the valve blind plate and the bottom of the cage are connected by rivets. 4 . The pre-pump filter according to claim 1 , wherein there are two sewage outlets, which are symmetrically distributed with respect to the axis of the cage body.