CN208686575U - Immersible pump - Google Patents

Abstract

The utility model relates to a kind of immersible pumps, major design main points are, a kind of immersible pump, including stator, single screw rod and motor, connecting rod is provided between single screw rod and motor, connecting rod is for connecting motor output end and single screw rod, the stator is provided with short tube close to one end of motor, short tube is fixed with stator, connecting rod is located at short tube center, and short tube is provided with pedestal close to one end of motor, and pedestal is for fixing short tube in motor, water inlet is offered on pedestal, stator is provided with check valve far from one end of short tube.The utility model, which has, is mounted on water surface position below, makes to be maintained in medium between single screw rod and stator, improve service life.

Description

Immersible pump

Technical field

The utility model relates to a kind of water pump, in particular to a kind of immersible pump.

Background technique

Water pump is the machinery for conveying liquid or being pressurized liquid, it sends the mechanical energy of motor to liquid, enables liquid Amount increases, and is mainly used to convey liquid to include water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal etc., water pump mostly uses Vane pump, screw pump and gear pump.

Since the pressure of screw pump is big, so than wide, screw pump includes stator and single screw rod for use in deep well, Single screw rod, which is located in stator, generates suction to water with stator cooperation, and the output shaft of single screw rod and motor is fixed, and stator and motor are solid It is fixed, when motor drives single screw rod rotation, so that single screw rod be made to rotate in stator.

A kind of universal screw pump disclosed in the patent application document of application publication number CN107795482A, when in use, Screw pump and motor are typically mounted on the exterior top of Jing Chi, and water is first drawn onto screw pump from low spot by screw pump, then by It is squeezed out after screw pump pressurization, this screw pump on startup, since, without medium, frictional force is big between single screw rod and stator, holds It is easy to damage.

Utility model content

The purpose of this utility model is to provide a kind of immersible pumps, have and are mounted on water surface position below, make single spiral shell It is maintained in medium, improves service life between bar and stator.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of immersible pump, including stator, single screw rod and motor, are provided with connecting rod, connecting rod between single screw rod and motor For connecting motor output end and single screw rod, the stator is provided with short tube close to one end of motor, and short tube is fixed with stator, even Extension bar is located at short tube center, and short tube is provided with pedestal close to one end of motor, and pedestal is for fixing short tube on motor, pedestal Water inlet is offered, stator is provided with check valve far from one end of short tube.

By using above-mentioned technical proposal, in use, motor output end is connect by connecting rod with single screw rod, stator passes through Short tube and pedestal are fixed on motor, and motor drives single screw rod to rotate in stator, water inlet are offered on pedestal, immersible pump is whole Body is placed in well pond, and motor is in lower end, and water inlet is equipped with check valve in water, in one end of immersible pump water outlet, Water enters from the inlet in short tube, and hydraulic pressure is increased by single screw rod and stator, and opening check valve makes water from immersible pump Water outlet outflow, and when stopping extraction, closed check valve is retained in water in the gap between stator and single screw rod, thus spiral shell When bar pump starting next time, there is aqueous medium between single screw rod and stator, hydraulic pressure can be set up, reduce friction, prolong the service life.

The utility model is further arranged to: there are two the water inlets, and is symmetrically provided on pedestal.

By using above-mentioned technical proposal, there are two water inlets and is symmetrically provided on pedestal, makes water two from pedestal Side enters in short tube simultaneously, prevents unilateral water inlet, water impact connecting rod, connecting rod unilateral side stress, to avoid single screw rod In abrasion of the water impact to stator, prolong the service life.

The utility model is further arranged to: the short tube is cased with centering bracket, centering bracket packet close to one end of pedestal Intermediate casing and supporting leg are included, is uniformly arranged on the outer wall of intermediate casing on supporting leg circumferencial direction.

By using above-mentioned technical proposal, centering bracket is mounted on short tube, and supporting leg can be supported on the inner wall of Jing Chi, So that short tube, pedestal and motor is in the center of Jing Chi, absorbs water more convenient.

The utility model is further arranged to: one end on the stator far from short tube is cased with centering bracket.

By using above-mentioned technical proposal, the upper end on stator far from short tube is cased with centering bracket, the centering branch on stator Centering bracket on frame and short tube acts on immersible pump can be made integrally to keep vertical state simultaneously, facilitates water suction and the row of immersible pump Water.

The utility model is further arranged to: connector is provided between the short tube and stator, connector is for connecting short tube With stator, and concora crush hole is offered on the side wall of short tube, concora crush hole is connected to the inner cavity of short tube.

By using above-mentioned technical proposal, it is provided with connector between short tube and stator, concora crush hole is offered on connector, in list Screw rod suction side, single screw rod can generate the fluctuation of hydraulic pressure when rotating, pass through concora crush hole connecting stator suction side and connector exterior Pressure further decreases the impact to single screw rod to reduce the fluctuation of hydraulic pressure, improves the service life of stator.

The utility model is further arranged to: the second lifting lug is provided on the outer wall of the check valve.

By using above-mentioned technical proposal, the upper end of unidirectional valve position immersible pump is provided with the second lifting lug on check valve, Staff can be arranged rope on the second lifting lug and haul immersible pump, prevent immersible pump from falling.

The utility model is further arranged to: the first lifting lug is provided on the pedestal, and the first lifting lug is hung with second Ear is in the same plane.

By using above-mentioned technical proposal, the first lifting lug is mounted on the base, and the first lifting lug and the second lifting lug are apart Farthest, when staff hauls the first lifting lug and the second lifting lug at the same time, immersible pump can be made to keep vertical, appearance is compared in water suction Easily.

The utility model is further arranged to: the check valve is provided with pipe fitting far from one end of stator.

By using above-mentioned technical proposal, check valve is provided with pipe fitting far from one end of stator, and pipe fitting is for connecting Water pipe, to facilitate the connection of immersible pump and water pump.

In conclusion the utility model has the following beneficial effects:

1. being connected to the output end of motor by the single screw rod in stator, stator is fixed on motor, and electricity when using Machine is in lower end, check valve is arranged in the output end of stator, immersible pump slips into water, makes among single screw rod and stator filled with water Medium prolongs the service life to reduce friction；

2. passing through water inlet there are two symmetrically opening up on pedestal, enter water in short tube, reduces flow action and connecting Unidirectional force on bar prolongs the service life to reduce the power that single screw rod acts on stator；

3. reducing the water pressure fluctuations at the suction side of stator, to reduce single spiral shell by the concora crush hole opened up on connector The vibration that bar is generated by water pressure fluctuations, prolongs the service life.

Detailed description of the invention

Fig. 1 is the perspective view of immersible pump；

Fig. 2 is the half sectional view of immersible pump；

Fig. 3 is the attachment structure schematic diagram of motor and pedestal；

Fig. 4 is the half sectional view of short tube；

Fig. 5 is the portion the A enlarged drawing of Fig. 2；

Fig. 6 is the half sectional view of connector；

Fig. 7 is the explosive view of check valve and pipe fitting；

Fig. 8 is the perspective view of centering bracket.

In figure, 1, connecting rod；2, single screw rod；3, stator；31, liner；32, housing；4, connector；41, the second shoulders； 42, the second threaded portion；43, the second guide part；44, third shoulders；45, concora crush hole；5, pedestal；51, water inlet；52, tube body； 53, outward flange；54, the first lifting lug；55, connecting pin；551, First shoulder；552, the first threaded portion；553, the first guide part； 56, chamfering；6, short tube；7, check valve；71, the second lifting lug；8, pipe fitting；81, front end；82, rear end；9, centering bracket；91, in Between casing；92, supporting leg；93, V-shaped groove；10, motor.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to It is the direction in attached drawing 1, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry The direction at center.

A kind of immersible pump, with reference to Fig. 1 and Fig. 2, including motor 10, connecting rod 1, single screw rod 2 and stator 3, motor 10, connection The axis collinear of bar 1, single screw rod 2 and stator 3, single screw rod 2 are mounted in stator 3, and connecting rod 1 is located at single screw rod 2 and motor 10 Between, the both ends of connecting rod 1 are separately mounted to the end of motor 10 and single screw rod 2, and stator 3 is fixed with close to one end of motor 10 Connector 4 is fixedly installed pedestal 5 on motor 10, is connected with short tube 6 between pedestal 5 and connector 4, the both ends of short tube 6 respectively with bottom Seat 5 and connector 4 are fixed, and connecting rod 1 is located at the center of short tube 6, and motor 10 drives connecting rod 1 to rotate, and stator 3 passes through connector 4, short Pipe 6 and pedestal 5 are fixed on motor 10, so that single screw rod 2 rotates in stator 3.Water inlet 51 is offered on pedestal 5, is dived When pump working, immersible pump is placed on vertically in well pond, and motor 10 is in lower end, and immersible pump upper end water receiving pipe passes through single screw rod 2 It is rotated in stator 3, water is sucked immersible pump out of water inlet 51, be discharged after then hydraulic pressure increases from the upper end of immersible pump.

With reference to Fig. 3, pedestal 5 includes tube body 52, with the axis collinear of line and the output shaft of motor 10, water inlet in tube body 52 51 are provided on the side wall of tube body 52, and there are two water inlets 51 and is symmetrical arranged, and pedestal 5 is provided with close to one end of motor 10 Outward flange 53 is bolted outward flange 53 on motor 10, and water inlet 51 is provided with tube body 52 close to one end of motor 10, The first lifting lug 54, the first lifting lug 54, tube body 52 and outward flange 53 1 are fixed on the side wall of the one end of tube body 52 far from motor 10 Body is arranged to be formed；The one end of tube body 52 far from motor 10 is connecting pin 55, and connecting pin 55 includes First shoulder 551, the first spiral shell Line portion 552 and the first guide part 553, the first threaded portion 552 are internal screw thread, and the internal diameter of the first guide part 553 is greater than the first screw thread The internal diameter in portion 552, the first guide part 553 are located at end of the tube body 52 far from outward flange 53, and the interior lateral edge in connecting pin 55 Chamfering 56 is offered on circumferencial direction.

With reference to Fig. 3 and Fig. 4, short tube 6 offers external screw thread close to one end of pedestal 5, and externally threaded length is less than connecting pin 55 length, and external screw thread is threadedly engaged with the first threaded portion 552, short tube 6 is against First shoulder close to one end of pedestal 5 551, the outer wall of short tube 6 is equal to the internal diameter of the first guide part 553, makes the center line of short tube 6 and the centerline collineation of seat seat, short tube 6 both ends are identical, make short tube 6 during installation, and both ends are mountable on pedestal 5, and when installation is more convenient.

With reference to Fig. 5 and Fig. 6, connector 4 is mounted on the one end of short tube 6 far from pedestal 5, and connector 4 includes the second shoulders 41, the Two threaded portions 42 and the second guide part 43, the internal diameter of the second guide part 43 is identical as the internal diameter of the first guide part 553, the second screw thread The screw thread in portion 42 is identical as the screw thread of the first threaded portion 552, and the second shoulders 41 is located at the middle part of connector 4, during installation, due to Stator 3 and the requirement of the axial position of single screw rod 2 are relatively high, are against First shoulder 551 and second respectively by 6 both ends of short tube Shoulder 41, so that stator 3 and 10 relative mounting location of motor are controlled, and single screw rod 2 passes through the length control of connecting rod 1 and motor 10 relative mounting location, so that stator 3 and 2 relative position of single screw rod are controlled, so installation and the manufacturing are fairly simple.

With reference to Fig. 5 and Fig. 6, connector 4 is double helix hollow structure, stator inside stator 3 for connecting short tube 6 and stator 3 3 include liner 31 and housing 32, and liner 31 is made of elastic material, and housing 32 is tube-like piece made of stainless steel material, liner 31 are mounted in housing 32, and liner 31 is the inside double helix hollow structure of rubber pressure injection forming.Housing 32 close to connector 4 one End is threadedly coupled with connector 4, and connector 4 is provided with third shoulders 44 in the opposite position of the second shoulders 41, and housing 32 is inserted in One end in connector 4 is against third shoulders 44, and third shoulders 44 is used for the axially mounted position of positioning wrap 32.Stator 3 It is fixed on motor 10 by connector 4, short tube 6 and pedestal 5, and the screw thread on the thread rotary orientation of 32 end of housing and short tube 6 Rotation direction is identical, and the tangential force for being subject to stator 3 is directed toward the threaded joints tightened between pedestal 5, short tube 6, connector 4 and housing 32 Position direction.Concora crush hole 45 is offered on 4 outer wall of connector between second shoulders 41 and third shoulders 44, concora crush hole 45 is connected to The external cavity with inside connector 4, when water is drawn into short tube 6 out of water inlet 51, in stator 3 close to one end of connector 4 Water is drawn into stator 3, and one side single screw rod 2 rotates, and the pressure in the position of connector 4 can generate fluctuation, another aspect pressure It can reduce.It is connected to by concora crush hole 45 with 4 external water of connector, reduces pressure oscillation, additionally it is possible to make single screw rod 2 close to connector 4 The pressure at place is higher, to improve water outlet efficiency.

With reference to Fig. 7, stator 3 is provided with check valve 7 far from one end of connector 4, and check valve 7 is installed far from one end of stator 3 There is pipe fitting 8, check valve 7 is connected from stator 3 to the direction of pipe fitting 8, is reversely not turned on, single when immersible pump needs to drain It is opened to valve 7, when immersible pump does not need work, check valve 7 is used to bear the pressure in water pipe, and hydraulic pressure is avoided to act on stator 3 and single screw rod 2 on, making stator 3 with single screw rod 2, the service life is longer.The outside of check valve 7 has been wholely set the second lifting lug 71, the second lifting lug 71 and the first lifting lug 54 are coplanar.

With reference to Fig. 7, pipe fitting 8 includes front end 81 and rear end 82, and front end 81 and the end thread of check valve 7 cooperate, and Front end 81 is external screw thread, and screw thread is pipe screw thread, and rear end 82 is for connecting water pipe, and rear end 82 is internal screw thread and screw thread is pipe screw thread. Pipe fitting 8 is divided into multiple kinds of models according to the diameter difference of 82 internal screw thread of rear end, thus when accessing the water pipe of different diameters, As long as installing pipe fitting 8 corresponding with water pipe, the water pipe of immersible pump access different-diameter is realized.

With reference to Fig. 8, for immersible pump when being mounted in well pond, submerged pump water-sucking is convenient, is cased on short tube 6 to middle bracket 9, Centering bracket 9 includes intermediate casing 91 and supporting leg 92, and intermediate casing 91 is wholely set with supporting leg 92, and centering bracket 9 uses Nitrile rubber, ageing-resistant performance is high and has flexible deformation, and intermediate casing 91 is enable to embrace on the outer wall of short tube 6.Supporting leg It there are three 92 and is circumferentially disposed on the outer wall of intermediate casing 91, the center of casing 91, and branch towards the middle of supporting leg 92 The radius that is equidistant and be greater than motor 10 of 92 outermost of leg apart from 91 center of intermediate casing, is supported on well by supporting leg 92 The inner wall in pond causes to absorb water unsmooth to prevent water inlet 51 close to the inner wall of Jing Chi.In order to keep immersible pump vertically-mounted In well pond, also it is equipped on housing 32 to middle bracket 9,92 outermost of supporting leg of two centering brackets 9 is apart from intermediate casing 91 centers are equidistant, and when installing, and two centering brackets 9 are installed in one end far from connector 4, make two centering branch The distance of frame 9 is farthest, preferably keeps immersible pump vertical state.Due to be related to first digging a well during the installation process pond the case where, When selecting immersible pump, the outermost diameter of supporting leg 92 if it is greater than Jing Chi internal diameter, to can not be mounted in well pond, thus Multiple parallel V-shaped grooves 93 are offered on supporting leg 92, supporting leg 92 is parallel to the axis of intermediate casing 91, and V-shaped groove for plate 93 are symmetrically provided with the two sides of supporting leg 92, and V-shaped groove 93 opens up the axis for being oriented parallel to intermediate casing 91, by from V-shaped groove 93 Position can quickly fracture supporting leg 92, reduce the outermost diameter of supporting leg 92.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of immersible pump, including stator (3), single screw rod (2) and motor (10), are arranged between single screw rod (2) and motor (10) Have connecting rod (1), connecting rod (1) is for connecting motor (10) output end and single screw rod (2), it is characterised in that: the stator (3) One end close to motor (10) is provided with short tube (6), and short tube (6) and stator (3) are fixed, and connecting rod (1) is located in short tube (6) The heart, short tube (6) are provided with pedestal (5) close to the one end of motor (10), pedestal (5) for fixing short tube (6) in motor (10), It is offered on pedestal (5) water inlet (51), stator (3) is provided with check valve (7) far from the one end of short tube (6).

2. immersible pump according to claim 1, it is characterised in that: there are two the water inlets (51), and symmetrically opens up On pedestal (5).

3. immersible pump according to claim 2, it is characterised in that: the short tube (6) is cased with pair close to the one end of pedestal (5) Middle bracket (9), centering bracket (9) include intermediate casing (91) and supporting leg (92), are uniformly arranged on supporting leg (92) circumferencial direction On the outer wall of intermediate casing (91).

4. immersible pump according to claim 3, it is characterised in that: one end on the stator (3) far from short tube (6) is cased with Centering bracket (9).

5. immersible pump according to claim 4, it is characterised in that: be provided with connector between the short tube (6) and stator (3) (4), connector (4) is for connecting short tube (6) and stator (3), and concora crush hole (45), concora crush are offered on the side wall of short tube (6) Hole (45) is connected to the inner cavity of short tube (6).

6. immersible pump according to claim 5, it is characterised in that: be provided with second on the outer wall of the check valve (7) and hang Ear (71).

7. immersible pump according to claim 6, it is characterised in that: it is provided with the first lifting lug (54) on the pedestal (5), and And first lifting lug (54) and the second lifting lug (71) it is in the same plane.

8. immersible pump according to claim 7, it is characterised in that: the check valve (7) is arranged far from the one end of stator (3) There are pipe fitting (8).