CN219605673U

CN219605673U - Horizontal multistage centrifugal pump

Info

Publication number: CN219605673U
Application number: CN202320051368.5U
Authority: CN
Inventors: 赵朝
Original assignee: Zhejiang Jiedi Pump Co ltd
Current assignee: Zhejiang Jiedi Pump Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-08-29
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to a horizontal multistage centrifugal pump, which comprises a centrifugal pump body, wherein a shock-proof seat is arranged on the centrifugal pump body and comprises an elastic piece, a base and a movable seat, the movable seat is arranged on the centrifugal pump body, a groove matched with the movable seat is formed in the top surface of the base, the movable seat is connected onto the groove in a sliding manner along the depth direction of the groove, and the elastic piece is arranged in the groove and supports the movable seat. The centrifugal pump body is placed on the ground, when the centrifugal pump body works, the centrifugal pump body vibrates, at the moment, the vibration of the centrifugal pump body cannot be directly transmitted to the ground due to the buffer effect of the first spring, noise generated by vibration of the centrifugal pump body and the ground can be reduced, and therefore the influence of noise generated by the multistage centrifugal pump during working on nearby workers is reduced.

Description

Horizontal multistage centrifugal pump

Technical Field

The utility model relates to the field of water pumps, in particular to a horizontal multistage centrifugal pump.

Background

A centrifugal pump is a pump that conveys liquid by centrifugal force generated when an impeller rotates. The multistage centrifugal pump is formed by integrating more than two centrifugal pumps with the same function, and the medium pressure relief port of the first stage is communicated with the inlet of the second stage in the fluid channel structure, and the medium pressure relief port of the second stage is communicated with the inlet of the third stage, so that the multistage centrifugal pump is formed by the mechanism connected in series.

When the multistage centrifugal pump works, the motor drives the multistage impeller to rotate at a high speed, liquid filled in the first-stage impeller is subjected to the action of the blades of the first-stage impeller, so that the pressure and the speed are increased simultaneously, the liquid is led to the impeller of the next stage through the flow channel of the guide shell, so that the pressure energy of the liquid is gradually increased, when the liquid flows out from the water outlet of the pump body, vacuum or low pressure is formed at the inlet of the impeller due to the discharge of the liquid, the subsequent liquid is continuously pressed into the inlet of the impeller, and then the rotating multistage impeller continuously sucks and discharges the liquid.

The utility model patent with publication number of CN101210567A discloses a horizontal multistage stainless steel centrifugal pump, which consists of a motor and a pump body, wherein the pump body consists of a water inlet section, a water outlet section, a multistage guide impeller and an impeller arranged in the guide impeller; the guide impeller consists of a shell, guide blades and a cover plate, and the impeller consists of a front cover plate, blades and a rear cover plate. The motor rotor is coaxial with the pump body, the water inlet of the water inlet section of the pump body is an axial suction inlet, the water outlet of the water outlet section is a radial discharge outlet, the shell, the guide vane and the cover plate of the guide vane are formed by one-step stamping and welding of stainless steel plates, and the front cover plate, the vane and the rear cover plate of the vane are formed into an integral structure by one-step stamping and welding of the stainless steel plates.

The related technical scheme has the following defects: the multistage centrifugal pump is placed on the ground to work, and when the multistage centrifugal pump works, noise is easy to generate with the ground vibration, and the physical and mental health of workers nearby can be damaged by long-time noise.

Disclosure of Invention

In order to reduce the influence of noise generated during the operation of the multistage centrifugal pump on nearby workers, the utility model provides a horizontal multistage centrifugal pump.

The utility model provides a horizontal multistage centrifugal pump which adopts the following technical scheme:

the utility model provides a horizontal multistage centrifugal pump, includes the centrifugal pump body, be equipped with the shock mount on the centrifugal pump body, the shock mount includes elastic component, base and removes the seat, it sets up on the centrifugal pump body to remove the seat, set up on the base top surface with remove the recess that the seat matches, remove the seat along the degree of depth direction sliding connection of recess on the recess, the elastic component sets up in the recess and supports and remove the seat.

Preferably, the elastic piece is a first spring, and two ends of the first spring are respectively abutted on the bottom wall of the groove and the bottom surface of the movable seat.

Preferably, a first limiting block is arranged on the outer wall of the movable seat, a first limiting groove matched with the first limiting block is formed in the side wall of the groove, and the first limiting block is slidably connected in the first limiting groove along the sliding direction parallel to the movable seat.

Preferably, the base is provided with a sucker, the opening of the sucker faces downwards, and the inner top surface of the sucker is flush with the bottom surface of the base.

Preferably, the plugging device further comprises a plurality of plugging devices and a plurality of fixing rods, the fixing rods respectively correspond to the plurality of suckers, the fixing rods are provided with communication channels communicated at two ends, the bottom ends of the fixing rods are fixed on the corresponding suckers, the top ends of the fixing rods extend into the grooves, through grooves which are completely communicated with the communication channels are formed in the inner surfaces of the suckers, the plugging devices respectively correspond to the plurality of fixing rods, the plugging devices comprise driving pieces and plugging blocks matched with the through grooves, the plugging blocks are movable in the grooves, and the driving pieces are used for controlling the plugging blocks to be moved to plug the through grooves and to be far away from the through grooves to be switched under two states.

Preferably, the driving piece comprises a push rod, a fixed block and a second spring, the fixed block is positioned in the groove and fixed on the bottom surface of the movable seat, a chute is formed in the bottom surface of the fixed block, the push rod is connected to the chute in a sliding manner along a sliding direction parallel to the movable seat, the second spring is positioned in the chute, two ends of the second spring are respectively fixed on the bottom wall of the chute and the push rod, and the blocking block is fixed at the bottom end of the push rod; when the weight of the centrifugal pump body is completely acted on the movable seat, the blocking block moves to block the through groove, and when the weight of the centrifugal pump body is not acted on the movable seat, the blocking block moves out of the blocking groove.

Preferably, the push rod is matched with the connecting channel, and the blocking block is opposite to the through groove when the push rod slides in the connecting channel.

Preferably, one end of the communication channel far away from the through groove is arranged in a gradually expanding mode.

The technical effects of the utility model are mainly as follows:

1. according to the utility model, due to the buffer effect of the first spring, vibration of the centrifugal pump body is not directly transmitted to the ground, and noise generated by vibration of the centrifugal pump body and the ground can be reduced, so that influence of noise generated by the multistage centrifugal pump in working on nearby workers is reduced.

2. According to the utility model, the sucker is arranged, so that the sucker can be adsorbed on the ground, the connection between the base and the ground can be increased, the phenomenon that the base is easy to deviate during vibration can be reduced, and the positioning effect of the horizontal multistage centrifugal pump is improved.

3. According to the utility model, the blocking block and the blocking groove are arranged, when the blocking block blocks the blocking groove, the sucker can adsorb on the ground after discharging the internal air, and when the blocking block moves out of the blocking groove, the gas in the groove can quickly enter the sucker, so that the sucker quickly loses the adsorption force, and an operator can conveniently carry the centrifugal pump body.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a shock mount and the like when the centrifugal pump body of the embodiment of the utility model is applied to the shock mount.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a cross-sectional view of a shock mount and the like when the centrifugal pump body of the embodiment of the utility model is not acting on the shock mount.

Fig. 5 is an enlarged view at B in fig. 4.

Reference numerals illustrate: 1. a centrifugal pump body; 11. a motor section; 12. a pump section; 121. a water inlet; 122. a water outlet; 2. a shock-proof seat; 21. a base; 211. a groove; 212. a first limit groove; 213. an avoidance groove; 22. a movable seat; 221. a first limiting block; 23. an elastic member; 231. a first spring; 24. a suction cup; 241. a through groove; 3. a plugging device; 31. blocking; 4. a driving member; 41. a push rod; 411. a second limiting block; 42. a fixed block; 421. a chute; 422. the second limit groove; 43. a second spring; 5. a fixed rod; 51. and a connecting channel.

Detailed Description

The present utility model will be further described in detail below with reference to fig. 1-5, so that the technical solution of the present utility model can be more easily understood and mastered.

The embodiment of the utility model discloses a horizontal multistage centrifugal pump.

Referring to fig. 1, a horizontal multistage centrifugal pump according to an embodiment of the present utility model includes a centrifugal pump body 1, the centrifugal pump body 1 is composed of a motor portion 11 and a pump portion 12, a motor is disposed in the motor portion 11, a pump shaft is rotatably connected to the pump portion 12, a multistage impeller is connected to the pump shaft, and an output shaft of the motor is fixedly connected to the pump shaft coaxially. The pump part 12 is also provided with a water inlet 121 and a water outlet 122, the starting motor drives the pump shaft to rotate so as to drive the multistage impeller on the pump shaft to rotate, and sewage is sucked into the pump shell from the water inlet 121 and then discharged through the water outlet 122.

Referring to fig. 1 and 2, a vibration-proof seat 2 is provided on a centrifugal pump body 1, the vibration-proof seat 2 includes an elastic member 23, a base 21, and a movable seat 22, the movable seat 22 is detachably connected to the centrifugal pump body 1 by a plurality of bolts, and the movable seat 22 is located right under the centrifugal pump body 1. A groove 211 matched with the movable seat 22 is formed in the top surface of the base 21 along the vertical direction, and when the base 21 is placed on a plane, the movable seat 22 is slidably connected to the groove 211 along the vertical direction. The elastic member 23 is disposed in the groove 211 and supports the movable seat 22, the elastic member 23 is a plurality of first springs 231, the plurality of first springs 231 are uniformly distributed in the groove 211, and two ends of the first springs 231 are respectively fixed on the bottom wall of the groove 211 and the bottom surface of the movable seat 22.

Referring to fig. 1 and 2, a first limiting block 221 is fixed on the outer sidewall of the movable seat 22, a first limiting groove 212 matched with the first limiting block 221 is formed on the inner wall of the groove 211 along the vertical direction, and the first limiting block 221 is slidably connected in the first limiting groove 212 along the vertical direction. The first spring 231 is always in a compressed state, and when the weight of the centrifugal pump body 1 does not act on the movable seat 22, the first limiting block 221 is always abutted against the end wall of the first limiting groove 212, which is close to the movable seat 22. When the weight of the centrifugal pump body 1 acts on the movable base 22, the movable base 22 moves downward, and in general, the first stopper 221 is not always in contact with the end wall of the first stopper groove 212 away from the movable base 22.

Referring to fig. 2 and 3, a plurality of suckers 24 are mounted on the base 21, the suckers 24 are uniformly distributed at the bottom end of the base 21, the inner top surface of the suckers 24 is flush with the bottom surface of the base 21, and a plurality of avoiding grooves 213 which correspondingly accommodate the suckers 24 are formed in the base 21. The sucking disc 24 is made of deformable material, such as silica gel or rubber material, when the base 21 is placed on the ground, especially smooth ground, the sucking disc 24 can be adsorbed on the ground, and the sucking disc 24 in the adsorption state is completely located in the corresponding avoiding groove 213 at this moment, so that the connection between the base 21 and the ground can be increased, the situation that the base 21 is easy to deviate during vibration can be reduced, and the positioning effect of the horizontal multistage centrifugal pump is improved.

Referring to fig. 2 and 3, the horizontal multistage centrifugal pump according to the embodiment of the utility model further includes a plurality of plugging devices 3 and a plurality of fixing rods 5, the plurality of fixing rods 5 respectively correspond to the plurality of suckers 24, the fixing rods 5 are vertically fixed in the movable seat 22, the fixing rods 5 are provided with communication channels 51 with two ends communicated, the bottom ends of the fixing rods 5 are fixed on the outer top surfaces corresponding to the suckers 24, and the top ends of the fixing rods 5 extend into the grooves 211. The suction cup 24 has a through groove 241 formed on an inner surface thereof, which is completely communicated with the communication passage 51, and both ends of the communication passage 51 are respectively communicated with the groove 211 and the through groove 241.

Referring to fig. 2 and 3, the plurality of plugging devices 3 correspond to the plurality of fixing rods 5, respectively, and the plugging devices 3 include a driving member 4 and a plugging block 31 matched with the through groove 241. The driving piece 4 includes push rod 41, fixed block 42 and second spring 43, fixed block 42 is located recess 211, fixed block 42 is vertical setting and the top of fixed block 42 is fixed on the removal seat 22 bottom surface, along vertical direction seted up spout 421 on the fixed block 42 bottom surface, push rod 41 is along vertical direction sliding connection on spout 421, second spring 43 is located spout 421 and the both ends of second spring 43 are fixed respectively on spout 421 diapire and push rod 41 top surface, second spring 43 is compression state all the time, the closure 31 is fixed on push rod 41 bottom surface.

Referring to fig. 2 to 5, the push rod 41 is matched with the communication channel 51, and the push rod 41 can be vertically slidably coupled to the corresponding communication channel 51. In order to better enable the push rod 41 to extend into the corresponding connecting channel 51, one end of the connecting channel 51, far away from the through groove 241, is gradually expanded, a certain guiding effect can be achieved, so that the push rod 41 smoothly extends into the corresponding connecting channel 51, when the end part of the push rod 41 is positioned in the connecting channel 51, the blocking piece 31 is opposite to the through groove 241, and the matching of the push rod 41 and the connecting channel 51 is also used for enabling the blocking piece 31 to better align with the upper through groove 241. The block 31 is made of a deformable material such as a silicone material or a rubber material.

Referring to fig. 3 and 5, a second limiting block 411 is fixed on the outer wall of the push rod 41, a second limiting groove 422 is provided on the inner wall of the sliding groove 421 along the vertical direction, and the second limiting block 411 is slidably connected in the second limiting groove 422 along the vertical direction.

Referring to fig. 1, 4 and 5, when the weight of the centrifugal pump body 1 is fully applied to the movable seat 22, the movable seat 22 moves down to drive the fixed block 42 to move down, the fixed block 42 drives the push rod 41 to move down, and the push rod 41 drives the blocking block 31 to extend into the through groove 241 to block the through groove 241 under the action of the second spring 43. Since the centrifugal pump body 1 has different weights, the moving seat 22 moves at different distances, and the centrifugal pump body 1 vibrates, the second spring 43 can overcome the above problem to stably block the through groove 241 by the block 31, and the suction cup 24 can suck the air on the ground after exhausting the air.

Referring to fig. 1-3, when an operator needs to move the centrifugal pump body 1 to a position, the operator carries the centrifugal pump body 1, at this time, the weight of the centrifugal pump body 1 is not acted on the moving seat 22, the moving seat 22 moves up to drive the fixed block 42 and the push rod 41 to move up, at this time, the push rod 41 moves out of the connecting channel 51, the blocking block 31 moves out of the through groove 241, and the gas in the groove 211 can quickly enter the suction cup 24, so that the suction cup 24 quickly loses the adsorption force, and the operator can conveniently carry the centrifugal pump body 1.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. Horizontal multistage centrifugal pump, including centrifugal pump body (1), its characterized in that: be equipped with shock mount (2) on centrifugal pump body (1), shock mount (2) include elastic component (23), base (21) and remove seat (22), remove seat (22) setting on centrifugal pump body (1), set up recess (211) that match with removing seat (22) on base (21) top surface, remove seat (22) along the depth direction sliding connection of recess (211) on recess (211), elastic component (23) set up in recess (211) and support and remove seat (22).

2. A horizontal multistage centrifugal pump according to claim 1, wherein: the elastic piece (23) is a first spring (231), and two ends of the first spring (231) are respectively abutted against the bottom wall of the groove (211) and the bottom surface of the movable seat (22).

3. A horizontal multistage centrifugal pump according to claim 1, wherein: the movable seat (22) is characterized in that a first limiting block (221) is arranged on the outer wall of the movable seat (22), a first limiting groove (212) matched with the first limiting block (221) is formed in the side wall of the groove (211), and the first limiting block (221) is slidably connected in the first limiting groove (212) along the sliding direction parallel to the movable seat (22).

4. A horizontal multistage centrifugal pump according to claim 1, wherein: the base (21) is provided with a sucker (24), the opening of the sucker (24) faces downwards, and the inner top surface of the sucker (24) is flush with the bottom surface of the base (21).

5. A horizontal multistage centrifugal pump according to claim 4, wherein: still include a plurality of plugging device (3) and a plurality of dead lever (5), a plurality of dead levers (5) correspond a plurality of sucking discs (24) respectively, set up intercommunication way (51) of both ends intercommunication on dead lever (5), the bottom mounting of dead lever (5) is on corresponding sucking disc (24), in the recess (211) is stretched on the top of dead lever (5), set up on the internal surface of sucking disc (24) with lead to groove (241) that communicate completely of intercommunication way (51), a plurality of plugging device (3) correspond a plurality of dead levers (5) respectively, plugging device (3) include driving piece (4) and with lead to groove (241) matched shutoff piece (31), shutoff piece (31) activity is in recess (211), driving piece (4) are used for controlling shutoff piece (31) and are carrying out the shutoff to leading to groove (241) and keep away from and switch under two kinds of states of groove (241).

6. A horizontal multistage centrifugal pump according to claim 5, wherein: the driving piece (4) comprises a push rod (41), a fixed block (42) and a second spring (43), wherein the fixed block (42) is positioned in the groove (211) and fixed on the bottom surface of the movable seat (22), a sliding groove (421) is formed in the bottom surface of the fixed block (42), the push rod (41) is connected onto the sliding groove (421) in a sliding mode parallel to the sliding direction of the movable seat (22), the second spring (43) is positioned in the sliding groove (421), two ends of the second spring (43) are respectively fixed on the bottom wall of the sliding groove (421) and the push rod (41), and the blocking block (31) is fixed at the bottom end of the push rod (41); when the weight of the centrifugal pump body (1) is completely acted on the movable seat (22), the blocking block (31) is moved to block the through groove (241), and when the weight of the centrifugal pump body (1) is not acted on the movable seat (22), the blocking block (31) is moved out of the blocking groove.

7. A horizontal multistage centrifugal pump according to claim 6, wherein: the push rod (41) is matched with the communication channel (51), and when the push rod (41) slides in the communication channel (51), the blocking block (31) is opposite to the through groove (241).

8. A horizontal multistage centrifugal pump according to claim 7, wherein: one end of the communication channel (51) far away from the through groove (241) is arranged in a gradually expanding mode.