CN210290045U

CN210290045U - Centrifugal pump air extractor and centrifugal pump thereof

Info

Publication number: CN210290045U
Application number: CN201920998335.5U
Authority: CN
Inventors: 隗小松
Original assignee: Hebei Around Asia Pump Industry Co ltd
Current assignee: Hebei Around Asia Pump Industry Co ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-04-10
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses a centrifugal pump air exhaust device and centrifugal pump thereof, the centrifugal pump includes the second motor, impeller and the pump body, fixedly connected with centrifugal pump air exhaust device on the pump body, centrifugal pump air exhaust device includes the air discharge chamber, air discharge chamber bottom fixed mounting has intake pipe and blast pipe, all install the check valve in intake pipe and the blast pipe, fixed mounting has air exhaust mechanism in the air discharge chamber, air exhaust mechanism includes electric telescopic handle, first piston ring, baffle and second piston ring, electric telescopic handle one end fixedly connected with slide, electric telescopic handle's other end coupling has first motor. The utility model discloses utilizing electric telescopic handle's flexible, driving piston ring and baffle reciprocate, the oppression setting makes the gas compression in the gasbag at the inside gasbag of piston ring, and then makes the piston ring lateral wall take place deformation, increases the area of contact of piston ring and exhaust chamber inner wall, makes the sealed effect of piston ring better, can be to a certain extent, neglects the wearing and tearing of piston ring, can use for a long time.

Description

Centrifugal pump air extractor and centrifugal pump thereof

Technical Field

The utility model belongs to the technical field of the centrifugal pump technique and specifically relates to a centrifugal pump air exhaust device and centrifugal pump thereof is related to.

Background

The centrifugal pump needs to fill water into a pump cavity and a water inlet pipeline when being started due to a special working principle and a special working environment, and the existing water filling method comprises the following steps: the manual water filling method, the vacuum water tank water filling method and the vacuum pump water filling method, however, the manual water filling method requires a specially-assigned person to use other water filling tools to fill water in a matching manner, so that the labor and tool cost is increased, and the water filling process wastes time; the vacuum water tank used in the vacuum water tank water filling method has a large volume, occupies a construction site, and causes site waste.

In order to realize that the centrifugal pump fills water more conveniently and more practice thrift the place, the most part of current centrifugal pump adopts the vacuum pump to realize filling water, but uses the vacuum pump to fill water the cost higher, also consequently few partial centrifugal pumps use other air exhaust device to realize filling water, like the utility model patent of patent number "201220361801.7", just utilize the principle of pressurized-water well, use the device similar to the piston, the manual work is evacuated to find time the air in the pipeline, forms negative pressure state to the realization is filled water for the centrifugal pump. However, the air extractor can be realized only by manual work, and the key factor of water filling in the patent lies in the sealing effect of the valve core and the valve, and only with good sealing effect, the air between the centrifugal pump and the water surface can be pumped out to form negative pressure to realize water filling. Therefore, a centrifugal pump air extractor which does not need manual operation, has a good sealing effect and can be used for a long time is needed, and air in a centrifugal pump can be pumped out, so that the centrifugal pump is filled with water.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a centrifugal pump air exhaust device and centrifugal pump thereof, can solve the not enough of prior art, need not special messenger and use other instrument cooperations to fill water, do not occupy the place, not only sealed effectual improves air exhaust device's work efficiency, still provides convenience for the automatic water that fills of centrifugal pump simultaneously, and then has improved the life of centrifugal pump.

In order to solve the technical problem, the utility model adopts the following technical proposal.

A centrifugal pump air extractor comprises an exhaust chamber, an air inlet pipe and an exhaust pipe are fixedly installed at the bottom of the exhaust chamber, check valves are installed in the air inlet pipe and the exhaust pipe, an air extracting mechanism is arranged in the exhaust chamber and comprises an electric telescopic rod, a first piston ring, a baffle and a second piston ring, one end of the electric telescopic rod is fixedly connected with a sliding plate, the other end of the electric telescopic rod is connected with a first motor in a shaft mode, a sliding cavity and a first air bag are arranged in the first piston ring, the sliding cavity is located above the first air bag, the sliding plate is in sliding connection with the inner wall of the sliding cavity, the baffle is fixedly connected with the electric telescopic rod, the second piston ring is in sliding connection with the electric telescopic rod, the baffle is located above the first piston ring, and the second piston ring is located above the baffle, the baffle is fixedly connected with a first push block, a second air bag is arranged in the second piston ring, a sliding groove is formed in the bottom of the second piston ring, the sliding groove is connected with the second push block in a sliding mode, and the first piston ring and the outer wall of the second piston ring are all provided with convex edges.

Preferably, a steel sheet is fixed on the inner wall of the sliding cavity, and the bottom of the sliding cavity is of a wave-shaped structure.

Preferably, the first piston ring and the second piston ring are rubber piston rings, and the rib is a rubber rib.

The centrifugal pump with the centrifugal pump air extracting device comprises a second motor, an impeller and a pump body, wherein the motor is fixedly connected with the pump body, the impeller is connected with the motor in a shaft mode, and the pump body is fixedly connected with the centrifugal pump air extracting device.

Preferably, pump body top fixed mounting has the air discharge chamber, be provided with the intake chamber in the pump body, the intake chamber is located the air discharge chamber below, intake pipe one end with the air discharge chamber intercommunication, the intake pipe other end and intake chamber intercommunication, blast pipe one end with the air discharge chamber intercommunication, the blast pipe other end with the pump body communicates outward, install inlet tube and drain pipe on the pump body, the inlet tube with the drain pipe with all install the check valve between the pump body, the inlet tube with the intake chamber intercommunication, the drain pipe is located the impeller top.

Preferably, the top end of the water inlet chamber is higher than the top end of the impeller.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the utility model discloses utilize electric telescopic handle's flexible, it reciprocates to drive piston ring and baffle, the oppression sets up the gasbag inside the piston ring, make the gas compression in the gasbag, and then make the piston ring lateral wall take place deformation, increase the area of contact of piston ring and exhaust chamber inner wall, make the sealed effect of piston ring better, the check valve in cooperation intake pipe and the blast pipe, make the gas in the intake chamber can only get into in the exhaust chamber, and the gas in the exhaust chamber can only discharge outside the pump body, through electric telescopic handle's continuous flexible, finally make the gas in the intake chamber manage to find time, make water enter into the intake chamber through the inlet tube, satisfy the condition that the centrifugal pump drew water. The utility model provides an air exhaust device bleeds sealed effectual, utilizes the characteristics that piston ring lateral wall can take place deformation, can be to a certain extent, neglects the wearing and tearing of piston ring, can use for a long time, when utilizing air exhaust device to fill water for the centrifugal pump, only need open air exhaust device just can realize filling water for the centrifugal pump, and the process of filling water is simple, improves air exhaust device's work efficiency, still provides convenience for the automatic water that fills of centrifugal pump simultaneously, and then has improved the life of centrifugal pump.

Drawings

Fig. 1 is a schematic structural view of a centrifugal pump of the present invention.

Fig. 2 is a schematic view of the air exhaust mechanism in the middle exhaust chamber of the present invention.

In the figure: 1. a first motor; 2. an impeller; 3. a pump body; 4. a water inlet chamber; 5. a water inlet pipe; 6. a drain pipe; 7. an exhaust chamber; 8. a one-way valve; 9. a second motor; 10. an electric telescopic rod; 11. a first piston ring; 12. a baffle plate; 13. a second piston ring; 14. a first air bag; 15. A slide plate; 16. a sliding cavity; 18. a rib; 19. a first push block; 20. a second push block; 21. A second air bag; 22. an air inlet pipe; 23. an exhaust pipe; 24. a steel sheet; 25. a chute.

Detailed Description

The utility model discloses the standard part that well used all can be purchased from the market, and dysmorphism piece all can be customized according to the description with the record of attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding, pasting among the prior art, no longer detailed description here.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-2, a specific embodiment of the present invention is a centrifugal pump air extractor, which comprises an exhaust chamber 7, an air inlet pipe 22 and an air outlet pipe 23 are fixedly installed at the bottom of the exhaust chamber 7, check valves 8 are installed in the air inlet pipe 22 and the air outlet pipe 23, so that air in the exhaust chamber 7 can only enter from the air inlet pipe 22 and be discharged from the air outlet pipe 23, an air extracting mechanism is installed in the exhaust chamber 7, the air extracting mechanism comprises an electric telescopic rod 10, a first piston ring 11, a baffle plate 12 and a second piston ring 13, one end of the electric telescopic rod 10 is fixedly connected with a sliding plate 15, the other end of the electric telescopic rod 10 is coupled with a first motor 1, a sliding cavity 16 and a first air bag 14 are installed in the first piston ring 11, the sliding plate 15 is slidably connected with the inner wall of the sliding cavity 16, the baffle plate 12, baffle 12 is located first piston ring 11 top, and second piston ring 13 is located baffle 12 top, and the first ejector pad 19 of fixedly connected with is provided with second gasbag 21 in the second piston ring 13 on the baffle 12, and second piston ring 13 bottom is provided with spout 25, and spout 25 sliding connection has second ejector pad 20, all is provided with bead 18 on first piston ring 11 and the second piston ring 13 outer wall.

When the electric telescopic rod 10 is driven by the first motor 1 to contract upwards, the baffle 12 is driven to move upwards, the sliding plate 15 on the electric telescopic rod 10 is used for driving the first piston ring 11 to move upwards, the first push block 19 on the baffle 12 can be in contact with the second push block 20 on the second piston ring 13 and push the second push block 20 to move upwards, so that the second push block 20 applies pressure to the second air bag 21, and the gas in the second air bag 21 is compressed, so that the side wall of the second piston ring 13 is deformed, the contact area between the convex edge 18 and the inner wall of the exhaust chamber 7 is increased, the sealing effect is improved, and the gas enters the exhaust chamber 7; when the electric telescopic rod 10 is driven by the first motor 1 to extend downwards, the first piston ring 11 and the baffle 12 are driven to move downwards, the sliding plate 15 on the electric telescopic rod 10 slides in the sliding cavity 16 in the first piston ring 11 and applies pressure to the first air bag 14, the air in the first air bag 14 is compressed, the side wall of the first piston ring 11 is deformed, the contact area between the convex edge 18 and the inner wall of the exhaust chamber 7 is increased, the sealing effect is improved, the gas in the exhaust chamber 7 is exhausted out of the pump body 3, one-time pumping and exhausting operation is completed, and the gas in the sealed space can be pumped vacuum by repeating the above operation, and under the condition that the convex edge 18 on the piston ring is worn in long-term use, the deformation of the side wall of the piston ring can still be utilized, so that the piston ring can be in full contact with the inner wall of the exhaust chamber 7, a good sealing effect is kept, and the vacuumizing of gas in a sealed space is further better completed. Because all be provided with rubber bead 18 in first piston ring 11 and second piston ring 13 outside, also can play sealed effect, when electric telescopic handle 10 contracts, air exhaust mechanism also can compress the gas of second piston ring 13 top, when electric telescopic handle 10 extends, the gas release pressure of second piston ring 13 top makes second piston ring 13 can follow electric telescopic handle 10 equidirectional removal, makes air exhaust device can not receive the influence of second piston ring 13 when repetitive operation.

According to the further optimized scheme, the steel sheet 24 is fixed on the inner wall of the sliding cavity 16, so that the inner wall of the sliding cavity 16 can be prevented from deforming when the gas in the first air bag 14 is compressed, the deformation of the side wall of the first piston ring 11 can not be influenced, and the sealing effect of the first piston ring 11 can be ensured; the bottom of the sliding cavity 16 is of a wave-shaped structure, so that the bottom of the sliding cavity 16 is easier to deform when the sliding plate 15 compresses the first air bag 14, and the situation that the bottom of the sliding cavity 16 is broken is prevented.

In a further optimized scheme, the first piston ring 11 and the second piston ring 13 are rubber piston rings, and the rib 18 is a rubber rib.

The utility model provides a centrifugal pump, includes second motor 9, impeller 2 and the pump body 3, motor and the fixed connection of the pump body 3, impeller 2 and motor coupling, fixedly connected with centrifugal pump air exhaust device on the pump body 3.

According to a further optimization scheme, an exhaust chamber 7 is fixedly mounted at the top of a pump body 3, a water inlet chamber 4 is arranged in the pump body 3, the water inlet chamber 4 is positioned below the exhaust chamber 7, one end of an air inlet pipe 22 is communicated with the exhaust chamber 7, the other end of the air inlet pipe 22 is communicated with the water inlet chamber 4, one end of an air exhaust pipe 23 is communicated with the exhaust chamber 7, the other end of the air exhaust pipe 23 is communicated with the outside of the pump body 3, when the air in the water inlet chamber 4 is vacuumized through an air exhaust device, the air in the water inlet chamber 4 firstly enters the exhaust chamber 7 through the air inlet pipe 22, the air in the water inlet chamber 4 is exhausted out of the pump body 3 through the air exhaust pipe 23, a water inlet pipe 5 and a water exhaust pipe 6 are mounted on the pump body 3, check valves 8 are mounted between the water inlet pipe 5 and the water exhaust pipe 6 and the pump body 3, so that water can only enter the water inlet pipe, the inlet tube 5 communicates with the inlet chamber 4, and after the gas in the inlet chamber 4 was managed to find time, under the effect of atmospheric pressure, make water enter into the inlet chamber 4 by the inlet tube 5 in, and then cover impeller 2, satisfy the condition of opening the centrifugal pump after, open the centrifugal pump, make water discharge by the drain pipe 6 that is located 2 tops of impeller, realize filling of centrifugal pump.

Further optimize the scheme, the top of intake chamber 4 is higher than the top of impeller 2, when being full of by water in intake chamber 4, the water in intake chamber 4 can be by air exhaust device suction to exhaust chamber 7 in to discharge by blast pipe 23 outside the pump body 3, operating personnel can judge whether the water in the centrifugal pump satisfies the opening condition of centrifugal pump according to the water of discharging outside the pump body 3.

The utility model discloses utilize electric telescopic handle 10's flexible, it reciprocates to drive piston ring and baffle 12, the oppression sets up the gasbag inside the piston ring, make the gas compression in the gasbag, and then make the piston ring lateral wall take place deformation, increase the area of contact of piston ring and exhaust chamber 7 inner wall, make the sealed effect of piston ring better, the check valve 8 in cooperation intake pipe 22 and the blast pipe 23, make the gas in the intake chamber 4 can only get into in the exhaust chamber 7, and the gas in the exhaust chamber 7 can only be discharged outside the pump body 3, constantly stretch out and draw back through electric telescopic handle 10, finally make the gas in the intake chamber 4 manage to find time, make water enter into the intake chamber 4 through inlet tube 5, satisfy the condition that the centrifugal pump drew water. The utility model provides an air exhaust device bleeds sealed effectual, utilizes the characteristics that piston ring lateral wall can take place deformation, can ignore the wearing and tearing of piston ring to a certain extent, improves air exhaust device's work efficiency, still provides convenience for the centrifugal pump is automatic to fill water simultaneously, and then has improved the life of centrifugal pump.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a centrifugal pump air extraction device which characterized in that: comprises an exhaust chamber (7), an air inlet pipe (22) and an exhaust pipe (23) are fixedly installed at the bottom of the exhaust chamber (7), one-way valves (8) are installed in the air inlet pipe (22) and the exhaust pipe (23), an air pumping mechanism is arranged in the exhaust chamber (7), the air pumping mechanism comprises an electric telescopic rod (10), a first piston ring (11), a baffle plate (12) and a second piston ring (13), one end of the electric telescopic rod (10) is fixedly connected with a sliding plate (15), the other end of the electric telescopic rod (10) is connected with a first motor (1) in a shaft mode, a sliding cavity (16) and a first air bag (14) are arranged in the first piston ring (11), the sliding cavity (16) is located above the first air bag (14), the sliding plate (15) is connected with the inner wall of the sliding cavity (16) in a sliding mode, and the baffle plate (12) is fixedly connected with the electric, the second piston ring (13) with electric telescopic handle (10) sliding connection, baffle (12) are located first piston ring (11) top, second piston ring (13) are located baffle (12) top, the first ejector pad of fixedly connected with (19) on baffle (12), be provided with second gasbag (21) in second piston ring (13), second piston ring (13) bottom is provided with spout (25), spout (25) sliding connection has second ejector pad (20), first piston ring (11) with all be provided with bead (18) on second piston ring (13) outer wall.

2. A centrifugal pump extraction apparatus according to claim 1, wherein: the steel sheet (24) is fixed on the inner wall of the sliding cavity (16), and the bottom of the sliding cavity (16) is of a wave-shaped structure.

3. A centrifugal pump extraction apparatus according to claim 1, wherein: the first piston ring (11) and the second piston ring (13) are rubber piston rings, and the rib (18) is a rubber rib.

4. A centrifugal pump having the centrifugal pump pumping apparatus of any one of claims 1 to 3, characterized in that: including second motor (9), impeller (2) and the pump body (3), second motor (9) with the pump body (3) fixed connection, impeller (2) with second motor (9) coupling, fixedly connected with centrifugal pump air exhaust device on the pump body (3).

5. The centrifugal pump of claim 4, wherein: the utility model discloses a pump body, including pump body (3), intake pipe (23), exhaust chamber (7), intake pipe (22) one end and exhaust chamber (7), intake chamber (4) are located exhaust chamber (7) below, intake pipe (22) one end with exhaust chamber (7) intercommunication, intake pipe (22) other end and intake chamber (4) intercommunication, blast pipe (23) one end with exhaust chamber (7) intercommunication, blast pipe (23) other end with the outer intercommunication of pump body (3), install inlet tube (5) and drain pipe (6) on the pump body (3), inlet tube (5) with drain pipe (6) with all install check valve (8) between the pump body (3), inlet tube (5) with intake chamber (4) intercommunication, drain pipe (6) are located impeller (2) top.

6. The centrifugal pump of claim 5, wherein: the top end of the water inlet chamber (4) is higher than the top end of the impeller (2).