CN215633792U

CN215633792U - Multi-stage pump

Info

Publication number: CN215633792U
Application number: CN202121983119.7U
Authority: CN
Inventors: 宋晓庆; 王真; 李岩; 郭建梅
Original assignee: Dalian Baorui Pump Co ltd
Current assignee: Dalian Baorui Pump Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-25
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a multistage pump which comprises a pump body and a motor base, wherein the motor base is arranged on the right side of the pump body, a power assembly is arranged in the center of the interior of the pump body, the power assembly comprises a pinch plate, a bearing, a motor, a packing gland, an impeller, a guide vane, a first-stage impeller, packing, a sealing ring and a rotating shaft, the motor is fixedly connected to the upper end of the motor base, and the pinch plate is fixedly connected with the pump body. This multistage pump, structure scientific and reasonable, convenience safe in utilization, be provided with the pump body, the sleeve, the drain pipe, the flange, first spring, the fixture block, cooperation between third spring and the diaphragm, the user can outwards pull out the fixture block and upwards rotate through the sleeve, rotate to vertical back, loosen the fixture block slowly and make fixture block and top flange form the block, the realization is assisted spacingly to top flange and drain pipe, avoid leading to the easy not hard up problem of junction because water pressure and the flow rate glue the piece to cause the vibrations of drain pipe connection department easily at the in-process of drainage.

Description

Multi-stage pump

Technical Field

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

Background

The multi-stage pump is a centrifugal pump combining a water inlet section and a water outlet section with a middle section through a pull rod, the output water pressure of the multi-stage pump can be very high, the centrifugal force is obtained by the rotation of an impeller, so that materials are pumped out when the gas density reaches the working range of the mechanical vacuum pump, and high vacuum is gradually obtained.

Although the multistage pump in the prior art can be used, the prior art has the problem that the joint is easy to loosen due to the vibration of the joint of the drain pipe caused by the water pressure and the flow rate rubber block easily in the drainage process, and meanwhile, the problem that a user needs to regularly and continuously supplement lubricating oil to the bearing is still existed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multistage pump to solve the problem that the joint is easy to loosen due to the vibration of the joint of a drain pipe caused by water pressure and a flow rate rubber block easily in the process of draining.

In order to achieve the purpose, the utility model provides the following technical scheme: a multi-stage pump comprises a pump body and a motor base, wherein the motor base is arranged on the right side of the pump body, and a power assembly is installed in the center of the interior of the pump body;

the power assembly comprises a pinch plate, a bearing, a motor, a packing gland, an impeller, a guide vane, a first-stage impeller, packing, a sealing ring and a rotating shaft;

the utility model discloses a packing machine, including motor, impeller, pump body, sealing washer, bearing, buckle, bearing, buckle, motor base, motor shaft, stator, pump body, bearing, buckle, pump body, sealing washer, motor rigid coupling, motor shaft, stator, pump body, bearing, buckle, pump body, bearing, buckle, pump body, sealing washer, pivot, bearing, pump body, bearing, pump body, bearing, spring, etc.

Preferably, the outer wall of the packing gland is provided with anti-slip lines for avoiding falling off the hand.

Preferably, a lubricating component is arranged on the outer side of the pinch plate;

the lubricating component comprises an oil pipe, a ball body, a vertical pipe, a lantern ring, a first vertical rod, a first piston, a second vertical rod, a second piston and a second spring;

it is a plurality of the equal rigid coupling of standpipe is in the lower extreme outside of buckle, the inside clearance fit of standpipe has the second montant, the upper and lower both sides difference rigid coupling of second montant have second piston and spheroid, the outer wall of second montant is equipped with the second spring, the upper and lower both sides of second spring are fixed continuous with the outer wall baffle of standpipe and second montant respectively, the second piston is laminated mutually with the standpipe, and is a plurality of the equal rigid coupling of oil pipe is in the outer wall left side of buckle, the inner wall of oil pipe has all laminated and has linked to each other first piston, the inside rigid coupling of first piston has first montant, the inboard equal rigid coupling of first montant and second montant has the lantern ring.

Preferably, an oil groove is formed in the first piston.

Preferably, a drainage component is arranged at a right drainage port above the pump body;

the drainage assembly comprises a clamping block, a drainage pipe, a flange, a first spring, a third spring, a sleeve and a transverse plate;

the diaphragm rigid coupling is at the right-hand member top outer wall of the pump body, the below of drain pipe is linked together through the flange and the pump body, the outer wall left and right sides of diaphragm all rotates and links to each other there is the sleeve, telescopic inside clearance fit has the fixture block, and the fixture block and the mutual joint of top flange, telescopic inside is equipped with the third spring, the upper and lower both sides of third spring are fixed continuous with fixture block and sleeve respectively, the sleeve is equipped with first spring with the junction of diaphragm, the both sides of first spring are fixed continuous with diaphragm and sleeve respectively.

Preferably, the lower extreme rigid coupling of the pump body and motor cabinet has the base, the top left side intercommunication of the pump body has the inlet tube.

Compared with the prior art, the utility model has the beneficial effects that: this multistage pump, structure scientific and reasonable, convenience safe in utilization:

be provided with the pump body, the sleeve, the drain pipe, the flange, first spring, the fixture block, cooperation between third spring and the diaphragm, make drain pipe accessible flange and the drain outlet department of the pump body communicate, accomplish the intercommunication installation back, the user can outwards pull out the fixture block and upwards rotate through the sleeve, rotate to vertical back, loosen the fixture block slowly and make fixture block and top flange form the block, the realization is assisted spacingly to top flange and drain pipe, avoid leading to the easy not hard up problem of junction because water pressure and velocity of flow glue the piece and cause the easy vibrations of drain pipe connection department at the in-process of drainage.

Be provided with the motor, the apparatus further comprises a rotating shaft, the first impeller, the bearing, the buckle, oil pipe, the standpipe, first piston, the second piston, the cooperation between second spring and the lantern ring, under the lubricating oil condition of constantly using of messenger's bearing department, the oil level height constantly descends, make the oil pressure reduce, the elasticity of second spring can promote the lantern ring and make first piston rebound, make the inside oil groove of first piston and oil pipe's intercommunication, realize the replenishment of lubricating oil, the problem that need the user regularly and constantly carry out lubricating oil replenishment to bearing department has been avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the pump body, the ball and the second spring of FIG. 1;

FIG. 3 is a schematic view of the pump body, bearings and first piston of FIG. 1;

fig. 4 is a schematic structural view of the latch, the cross plate and the first spring in fig. 1.

In the figure: 1. the pump body, 2, drainage component, 201, fixture block, 202, drain pipe, 203, flange, 204, first spring, 205, third spring, 206, sleeve, 207, diaphragm, 3, power component, 301, buckle, 302, bearing, 303, motor, 304, gland, 305, impeller, 306, guide vane, 307, first-stage impeller, 308, filler, 309, sealing ring, 310, pivot, 4, lubricating component, 401, oil pipe, 402, spheroid, 403, standpipe, 404, lantern ring, 405, first montant, 406, first piston, 407, second montant, 408, second piston, 409, second spring, 5, motor cabinet, 6, base, 7, inlet tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a multi-stage pump comprises a pump body 1 and a motor base 5, wherein the right side of the pump body 1 is provided with the motor base 5 for limiting the relative position of the pump body 1 and the motor base 5, the inner center of the pump body 1 is provided with a power assembly 3, the power assembly 3 comprises a pinch plate 301, a bearing 302, a motor 303, a packing gland 304, an impeller 305, a guide vane 306, a first-stage impeller 307, a packing 308, a sealing ring 309 and a rotating shaft 310, the motor 303 is fixedly connected to the upper end of the motor base 5, the model of the motor 303 is BLD-09, the output shaft of the motor 303 is fixedly connected with the rotating shaft 310, the output shaft of the motor 303 can drive the rotating shaft 310 to rotate and support, the left end of the outer wall of the rotating shaft 310 is fixedly connected with the first-stage impeller 307, the rotating shaft 310 can drive the first-stage impeller 307 and the impeller 305 to rotate, the right side of the outer wall of the rotating shaft 310 is fixedly connected with a plurality of impellers 305, the guide vanes 306 are arranged on the right sides of the impeller 305 and the first-stage impeller 307, and the relative position of the guide vane 306, and the first-stage impeller 305 are limited, the guide vane 306 is fixedly connected with the pump body 1, the pump body 1 can support the guide vane 306, the outer walls of the left side and the right side of the rotating shaft 310 are respectively provided with a packing 308, the outer sides of the packing 308 are tightly attached with a packing gland 304, sealing is realized by extrusion of the packing gland 304, the packing gland 304 is in threaded connection with the pump body 1, the left end and the right end of the outer wall of the rotating shaft 310 are rotatably connected with a pinch plate 301 through a bearing 302, the pinch plate 301 can rotatably support the rotating shaft 310 through the bearing 302, the pinch plate 301 is fixedly connected with the pump body 1, a plurality of sealing rings 309 are fixedly connected to the inner side and the outer side of the inner wall of the pinch plate 301 respectively, the sealing rings 309 are mutually attached with the rotating shaft 310, the rotating shaft 310 can continuously rotate in the sealing rings 309, relative sealing in the rotating process is guaranteed, the pump body 1 can support the pinch plate 301, and anti-slip threads for avoiding hand drop are processed on the outer wall of the packing gland 308.

The lubricating component 4 is installed on the outer side of the buckle plate 301, the lubricating component 4 comprises an oil pipe 401, a ball 402, vertical pipes 403, a lantern ring 404, a first vertical rod 405, a first piston 406, a second vertical rod 407, a second piston 408 and a second spring 409, the vertical pipes 403 are all fixedly connected to the outer side of the lower end of the buckle plate 301, the second vertical rod 407 is in clearance fit with the inner portion of the vertical pipes 403, the second vertical rod 407 can move inside the vertical pipes 403, the upper side and the lower side of the second vertical rod 407 are fixedly connected with the second piston 408 and the ball 402 respectively, the ball 402 can drive the second piston 408 to move through the second vertical rod 407, a second spring 409 is arranged on the outer wall of the second vertical rod 407, the elastic coefficient K of the second spring 409 is 500N/m, the upper side and the lower side of the second spring 409 are fixedly connected with outer wall baffles of the vertical pipes 403 and the second vertical rods 407 respectively, the vertical rods 407 can stretch the second spring 409 when moving downwards, and the second piston 408 is attached to the vertical pipes 403, second piston 408 can remove in the inside of standpipe 403, and guarantee to remove the relative seal of in-process, the equal rigid coupling of a plurality of oil pipes 401 is on the left of the outer wall of buckle 301, buckle 301 can support oil pipe 401, oil pipe 401's inner wall all laminates and has linked to first piston 406, first piston 406 can remove in oil pipe 401's inside, and guarantee to remove the relative seal of in-process, the inside rigid coupling of first piston 406 has first montant 405, it is that first montant 405 can drive first piston 406 and remove, the inboard equal rigid coupling of first montant 405 and second montant 407 has lantern ring 404, first montant 405 and second montant 407 accessible lantern ring 404 remove, the internal processing of first piston 406 has the oil groove.

The drainage assembly 2 is installed at a drainage port on the right side above the pump body 1, the drainage assembly 2 comprises a fixture block 201, a drainage pipe 202, a flange 203, a first spring 204, a third spring 205, a sleeve 206 and a transverse plate 207, the transverse plate 207 is fixedly connected to the outer wall on the upper right side of the pump body 1, the pump body 1 can support the transverse plate 203, the lower side of the drainage pipe 202 is communicated with the pump body 1 through the flange 203, the pump body 1 can be connected with the drainage pipe 207 in a sealing mode through the flange 203, the left side and the right side of the outer wall of the transverse plate 207 are rotatably connected with the sleeve 206, the sleeve 206 can be rotatably connected with the left end and the right end of the transverse plate 207 through the left end and the right end, the fixture block 201 is in clearance fit with the sleeve 206, the fixture block 201 can move inside the sleeve 206, the fixture block 201 and the upper flange 203 are clamped with each other, the upper flange 203 and the drainage pipe 202 can be fixed in position, the third spring 205 is arranged inside the sleeve 206, the elastic coefficient K of the third spring 205 is 1000N/m, the upper side and the lower side of the third spring 205 are respectively fixedly connected with the fixture block 201 and the sleeve 206, the fixture block 201 moves upwards to stretch the third spring 205, the joint of the sleeve 206 and the transverse plate 207 is provided with the first spring 204, the first spring 204 is a volute spiral spring with the elastic coefficient K of 500N/m, the two sides of the first spring 204 are respectively fixedly connected with the transverse plate 207 and the sleeve 206, the sleeve 206 rotates outwards to stretch the first spring 204, the lower ends of the pump body 1 and the motor base 5 are fixedly connected with the base 6, the base 6 can support the pump body 1 and the motor base 5, and the left side of the upper part of the pump body 1 is communicated with the water inlet pipe 7.

When the multistage pump is required to be used, firstly, a user can communicate the water inlet pipe 7 with an external water source position, the drain pipe 202 is communicated and installed with the pump body 1 through the flange 203, then the fixture block 201 rotates inwards and moves outwards from the inside of the sleeve 206, the first spring 204 and the third spring 205 are stretched simultaneously, then the fixture block 201 is loosened, the first spring 204 and the third spring 205 are enabled to realize clamping connection of the fixture block 201 and the upper flange 203, re-fixing between the pump body 1 and the drain pipe 202 except for installation of the flange 203 is realized, then, the user can start the motor 303, an output shaft of the motor 303 can drive the first-stage impeller 307 and the impeller 305 to rotate through the rotating shaft 310, water flow at the water inlet pipe 7 is conveyed to the drain pipe 202 through air pressure change inside the pump body 1, in the using process, the oil amount at the bearing 302 continuously drops, the oil pressure is reduced after dropping, the elastic force of the second spring 409 can move the second piston 408 upwards, so that the first vertical rod 405, the second vertical rod 407 and the lantern ring 404 drive the first piston 406 to move upwards, the oil groove in the first piston 406 is communicated with the oil pipe 201, the supplement of the bearing 302 is realized, and the sufficient oil quantity of the bearing 302 can be realized only when the lubricating oil in the oil pipe 201 is sufficient.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multistage pump, includes the pump body (1) and motor cabinet (5), the right side of the pump body (1) is equipped with motor cabinet (5), its characterized in that: a power assembly (3) is arranged in the center of the interior of the pump body (1);

the power assembly (3) comprises a pinch plate (301), a bearing (302), a motor (303), a packing gland (304), an impeller (305), a guide vane (306), a first-stage impeller (307), packing (308), a sealing ring (309) and a rotating shaft (310);

the utility model discloses a pump, including motor (303), motor seat (5), output shaft rigid coupling of motor (303) has pivot (310), the outer wall left end rigid coupling of pivot (310) has first-order impeller (307), the outer wall right side rigid coupling of pivot (310) has a plurality of impeller (305), the right side of impeller (305) and first-order impeller (307) is equipped with stator (306), and stator (306) and pump body (1) are fixed to be linked to each other, the left and right sides outer wall of pivot (310) all is equipped with filler (308), the outside of filler (308) all closely laminates gland (304), gland (304) all links to each other with pump body (1) screw thread, both ends all rotate with buckle (301) through bearing (302) about the outer wall of pivot (310) and link to each other, buckle (301) are fixed with pump body (1) and link to each other, a plurality of sealing washer (309) rigid coupling is in the inner wall inside and outside both sides of buckle (301) respectively, and the sealing ring (309) is mutually attached to the rotating shaft (310).

2. A multistage pump according to claim 1, wherein: the outer wall of the packing gland (304) is provided with anti-slip lines for avoiding falling off the hand.

3. A multistage pump according to claim 1, wherein: a lubricating component (4) is arranged on the outer side of the pinch plate (301);

the lubricating component (4) comprises an oil pipe (401), a ball body (402), a vertical pipe (403), a lantern ring (404), a first vertical rod (405), a first piston (406), a second vertical rod (407), a second piston (408) and a second spring (409);

a plurality of vertical pipes (403) are all fixedly connected at the outer side of the lower end of the buckle plate (301), second vertical rods (407) are in clearance fit in the vertical pipes (403), the upper side and the lower side of the second vertical rod (407) are respectively fixedly connected with a second piston (408) and a sphere (402), a second spring (409) is arranged on the outer wall of the second vertical rod (407), the upper side and the lower side of the second spring (409) are respectively fixedly connected with the vertical pipe (403) and the outer wall baffle of the second vertical rod (407), the second piston (408) is attached to the vertical pipe (403), a plurality of oil pipes (401) are fixedly connected to the left side of the outer wall of the pinch plate (301), the inner walls of the oil pipes (401) are connected with first pistons (406) in an attaching mode, first vertical rods (405) are fixedly connected inside the first pistons (406), and lantern rings (404) are fixedly connected to the inner sides of the first vertical rod (405) and the second vertical rod (407).

4. A multistage pump according to claim 3, wherein: an oil groove is formed in the first piston (406).

5. A multistage pump according to claim 1, wherein: a drainage component (2) is arranged at a right drainage port above the pump body (1);

the drainage assembly (2) comprises a clamping block (201), a drainage pipe (202), a flange (203), a first spring (204), a third spring (205), a sleeve (206) and a transverse plate (207);

diaphragm (207) rigid coupling is in the right-hand member top outer wall of the pump body (1), the below of drain pipe (202) is linked together with the pump body (1) through flange (203), the outer wall left and right sides of diaphragm (207) all rotates and has linked to each other sleeve (206), the inside clearance fit of sleeve (206) has fixture block (201), and fixture block (201) and top flange (203) joint each other, the inside of sleeve (206) is equipped with third spring (205), the upper and lower both sides of third spring (205) are fixed continuous with fixture block (201) and sleeve (206) respectively, sleeve (206) are equipped with first spring (204) with the junction of diaphragm (207), the both sides of first spring (204) are fixed continuous with diaphragm (207) and sleeve (206) respectively.

6. A multistage pump according to claim 1, wherein: the lower extreme rigid coupling of the pump body (1) and motor cabinet (5) has base (6), the top left side intercommunication of the pump body (1) has inlet tube (7).