CN210397268U - Energy-saving centrifugal pump with automatic drainage system - Google Patents

Abstract

The utility model discloses an energy-conserving centrifugal pump with automatic drainage system belongs to centrifugal pump technical field. The utility model provides an energy-conserving centrifugal pump with automatic drainage system, includes the pump body, and pump body water sucking mouth flange joint has the inlet tube, and inlet tube tip movable mounting has the rose box, and the mounting groove has been seted up to the rose box front end, and the embedding filter screen that is equipped with in the mounting groove has two supports in the symmetrical welding of rose box left and right sides, is provided with the automatic transmission subassembly between two supports, from transmission subassembly front end middle part and filter screen leading flank sliding connection. The utility model discloses an install the rose box additional at the inlet tube tip to set up self-drive assembly in the rose box, utilize the suction that the pump body produced to drive rivers, thereby make the blade change into the power that the foreign matter was struck off to reciprocal about the scraper blade in the in-process with rivers friction, compare the way of directly installing the filter screen additional at the inlet tube tip among the prior art, the utility model has the advantages of reasonable design, powerful prevents blocking effectually.

Description

Energy-saving centrifugal pump with automatic drainage system

Technical Field

The utility model relates to a centrifugal pump technical field, more specifically say, relate to an energy-conserving centrifugal pump with automatic drainage system.

Background

Centrifugal pumps are widely used in various industries such as electric power, metallurgy, coal, building materials, etc., as a kind of rotating equipment for transporting water, and are almost indispensable equipment in water treatment systems. In the coal mine industrial production, the centrifugal pump plays an important role, not only conveys water to working units such as a fully mechanized mining team, a machine digging team, a preparation area, a dust prevention area, a ventilation area and the like in a coal mine, but also takes the task of discharging natural water of an underground operation place to the ground, and can discharge waste water out of the well in time when water leakage accidents happen underground. The centrifugal pump is also suitable for urban water supply and drainage, high-rise pressurizing water supply, garden sprinkling irrigation, cold and hot water pressurizing, equipment matching and the like. The patent document with the publication number of CN201820932627.4 in the prior art provides an automatic control drainage system of a centrifugal pump, wherein a pressure relief exhaust valve is arranged on the centrifugal pump, the water level in the pump is monitored through the pressure relief exhaust valve, meanwhile, a water shortage and overtemperature protection sensor is arranged on a pump body to monitor the fault condition that water cannot be supplied in the pump, and meanwhile, the pump filling and starting and stopping operations are carried out on the centrifugal pump through the sensor on the pressure relief exhaust valve and the signals of the water shortage and overtemperature protection sensor, a high water level sensor and a low water level sensor, so that the automatic control drainage of the centrifugal pump can be realized, and the pump can be stopped and an alarm signal can be sent out in time when the centrifugal pump fails, so that unattended operation and people; when the pump is filled, the pressure relief exhaust valve can automatically exhaust air in the pump body, so that the influence of residual air on the drainage of the pump is reduced, and the efficiency of equipment is improved; when the pump is stopped, the pressure can be automatically released, so that the impact on the water pump and the bottom valve is reduced, and the system is protected; the water shortage and overtemperature protection can monitor the fault of the water pump, automatically stop the pump and avoid burning out the water pump; when the main pump is not watered, the standby pump can be automatically started and stopped, and the water sump is prevented from being submerged when one pump is powered off or fails. Although the device has more beneficial effects, the following problems still exist: for avoiding among the prior art that the water inlet of centrifugal pump inlet tube 2 receives the foreign matter to block, install the filter screen additional at water inlet tip usually, but only install the filter screen additional, easily cause the foreign matter to pile up, influence centrifugal pump pumping efficiency, still can cause centrifugal pump idle running when serious. In view of this, we propose an energy-saving centrifugal pump with an automatic drainage system.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide an energy-conserving centrifugal pump with automatic drainage system to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

An energy-saving centrifugal pump with an automatic drainage system comprises a pump body, wherein a water inlet pipe is connected to a water suction port of the pump body in a flange mode, a filter box is movably mounted at the end part of the water inlet pipe, a filter cavity is formed in the middle of the interior of the filter box, and the filter cavity is communicated with the end part of the water inlet pipe;

the filter box is characterized in that a mounting groove is formed in the front end of the filter box, a filter screen is embedded in the mounting groove, two supports are symmetrically welded on the left side and the right side of the filter box and are of an L-shaped structure, an automatic transmission assembly is arranged between the supports, and the middle of the front end of the automatic transmission assembly is connected with the front side face of the filter screen in a sliding mode.

Preferably, from transmission assembly including setting up in the inside transmission shaft of filter chamber, transmission shaft both sides tip all passes the rose box inner wall and extends to outside and coaxial fixedly connected with driving gear, the transmission shaft middle part outside is annular equidistant welding has a plurality of blades, two relatively the blade width sum and the high looks adaptation of filter chamber.

Preferably, the front side of the transmission gear is provided with a driven gear, the middle part of the driven gear is rotationally connected with the inner wall of the front end of the bracket through a connecting shaft fixedly connected with the driven gear, and the outer side of the driven gear is in meshing transmission with the outer side of the transmission gear through a chain.

Preferably, the inner end of the connecting shaft is sleeved with arc-shaped teeth, the outer sides of the arc-shaped teeth are provided with limiting blocks, the limiting blocks are of hollow ellipsoidal structures, and tooth grooves in meshing contact with the arc-shaped teeth are formed in the inner sides of the limiting blocks.

Preferably, two the welding has the scraper blade between the stopper, the fillet has been seted up to scraper blade rear end outer fringe, fillet and filter screen front side surface sliding connection.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an install the rose box additional at the inlet tube tip to set up self-drive assembly in the rose box, utilize the suction that the pump body produced to drive rivers, thereby make the blade change into the power that the foreign matter struck off reciprocally from top to bottom at the scraper blade with the in-process of rivers friction, compare the way of directly installing the filter screen additional at the inlet tube tip among the prior art, the utility model has the advantages of reasonable design, powerful prevents blocking effectually, is favorable to marketing.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the self-driving assembly of the present invention.

The reference numbers in the figures illustrate: 1. a pump body; 2. a water inlet pipe; 3. a filter box; 301. filtering with a screen; 302. a support; 4. a self-driven component; 401. a drive shaft; 402. a transmission gear; 403. a blade; 404. a driven tooth; 405. a connecting shaft; 406. a chain; 407. arc-shaped teeth; 408. a limiting block; 409. a scraper.

Detailed Description

The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; rather than all embodiments. Based on the embodiment of the utility model; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.

Referring to fig. 1-2, the present invention provides a technical solution:

an energy-saving centrifugal pump with an automatic drainage system comprises a pump body 1, wherein a water inlet pipe 2 is connected to a water suction port of the pump body 1 in a flange mode, a filter box 3 is movably mounted at the end part of the water inlet pipe 2, a filter cavity is formed in the middle inside the filter box 3, and the filter cavity is communicated with the end part of the water inlet pipe 2;

the mounting groove has been seted up to 3 front ends of rose box, and the mounting groove is embedded to be equipped with filter screen 301, and 3 left and right bilateral symmetry of rose box have two supports 302, and support 302 is L type structure to be provided with between two supports 302 from transmission subassembly 4, from transmission subassembly 4 front end middle part and filter screen 301 leading flank sliding connection.

From transmission subassembly 4 including setting up in the inside transmission shaft 401 of filter chamber, transmission shaft 401 both sides tip all passes 3 inner walls of rose box and extends to outside and coaxial fixedly connected with driving tooth 402, and the transmission shaft 401 middle part outside is the welding of annular equidistant having a plurality of blades 403, two relative blade 403 width sums and the high looks adaptation of filter chamber.

The front side of the transmission gear 402 is provided with a driven gear 404, the middle part of the driven gear 404 is rotatably connected with the inner wall of the front end of the bracket 302 through a connecting shaft 405 fixedly connected with the driven gear, and the outer side of the driven gear 404 is in meshing transmission with the outer side of the transmission gear 402 through a chain 406. The inner end of the connecting shaft 405 is sleeved with the arc-shaped teeth 407, the outer sides of the arc-shaped teeth 407 are provided with the limiting blocks 408, the limiting blocks 408 are of hollow ellipsoidal structures, and tooth grooves in meshing contact with the arc-shaped teeth 407 are formed in the inner sides of the limiting blocks 408. It is worth noting that the utility model discloses well arc tooth 407's size should satisfy, and when arc tooth 407 one end and stopper 408 one side tooth's socket contacted, the arc tooth 407 other end just separated with stopper 408 opposite side tooth's socket to guarantee that stopper 408 does not drop.

The scraper 409 is welded between the two limiting blocks 408, a fillet is formed in the outer edge of the rear end of the scraper 409, and the fillet is connected with the front side surface of the filter screen 301 in a sliding mode. The utility model discloses in set up the fillet at scraper blade 409 rear end, avoid scraper blade 409 to damage filter screen 301, prolong filter screen 301's life.

The utility model relates to an energy-conserving centrifugal pump with automatic drainage system because still there is the following problem among the prior art: for avoiding the water inlet of centrifugal pump inlet tube to receive the foreign matter blocking among the prior art, install the filter screen additional at the water inlet tip usually, but only install the filter screen additional, easily cause the foreign matter to pile up, influence centrifugal pump pumping efficiency, still can cause centrifugal pump idle running when serious. Therefore we are through installing filter tank 3 additional at inlet tube 2 tip to set up from transmission assembly 4 in filter tank 3, utilize pump body 1 to drive rivers, rivers drive blade 403, blade 403 drives transmission shaft 401, transmission shaft 401 drives driving tooth 402, driving tooth 402 drives driven tooth 404 through chain 406, driven tooth 404 drives arc tooth 407 through even axle 405, thereby make arc tooth 407 drive rather than the stopper 408 of meshing connection, and then make stopper 408 drive scraper blade 409 realize scraping from top to bottom filter screen 301.

The above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the utility model. Furthermore, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Several of the elements recited in the product claims may also be implemented by one element in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims (5)

1. An energy-saving centrifugal pump with an automatic drainage system comprises a pump body (1), and is characterized in that: the water suction port of the pump body (1) is connected with a water inlet pipe (2) in a flange mode, the end part of the water inlet pipe (2) is movably provided with a filter box (3), the middle part inside the filter box (3) forms a filter cavity, and the filter cavity is communicated with the end part of the water inlet pipe (2);

the mounting groove has been seted up to rose box (3) front end, embedded filter screen (301) that is equipped with of mounting groove, rose box (3) left and right sides symmetrical welding has two supports (302), support (302) are L type structure, and two be provided with between support (302) from transmission subassembly (4), from transmission subassembly (4) front end middle part and filter screen (301) leading flank sliding connection.

2. The energy-saving centrifugal pump with an automatic water drainage system according to claim 1, wherein: from transmission subassembly (4) including setting up in transmission shaft (401) of filter chamber inside, transmission shaft (401) both sides tip all passes filter box (3) inner wall and extends to outside and coaxial fixedly connected with driving gear (402), transmission shaft (401) middle part outside is the welding of annular equidistant having a plurality of blades (403), two relatively the high looks adaptation of blade (403) width sum and filter chamber.

3. An energy-saving centrifugal pump with an automatic water discharge system according to claim 2, characterized in that: the front side of the transmission gear (402) is provided with a driven gear (404), the middle part of the driven gear (404) is rotatably connected with the inner wall of the front end of the bracket (302) through a connecting shaft (405) fixedly connected with the driven gear, and the outer side of the driven gear (404) is in meshing transmission with the outer side of the transmission gear (402) through a chain (406).

4. An energy-saving centrifugal pump with an automatic water drainage system according to claim 3, wherein: arc tooth (407) has been cup jointed to even axle (405) inner, arc tooth (407) outside is provided with stopper (408), stopper (408) are hollow ellipsoid structure to stopper (408) inboard is seted up with arc tooth (407) meshing contact's tooth's socket.

5. The energy-saving centrifugal pump with an automatic water drainage system as claimed in claim 4, wherein: two the welding has scraper blade (409) between stopper (408), the fillet has been seted up to scraper blade (409) rear end outer fringe, fillet and filter screen (301) front side surface sliding connection.

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