CN216518696U

CN216518696U - Prevent immersible pump of impurity entering

Info

Publication number: CN216518696U
Application number: CN202123297599.4U
Authority: CN
Inventors: 陈俊钢
Original assignee: Zhejiang Qiangong Pump Technology Co ltd
Current assignee: Zhejiang Qiangong Pump Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-13
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a submersible pump capable of preventing impurities from entering, and belongs to the technical field of submersible pumps. It has solved the drain pipe and has got into the problem that impurity water conservancy diversion leads to damage in the pump body easily. This prevent immersible pump of impurity entering, including the motor main part that has the motor shaft and the pump body that has water inlet and delivery port, the pump body is by last pump body, well pump body and lower pump body are constituteed, it is provided with the outside arch of axial on the outer terminal surface of delivery port department to go up the pump body, and the bulge loop portion that is connected with the discharge pipe, be provided with protruding ring on the internal perisporium of bulge loop portion, be provided with discharge structure between protruding ring and the discharge pipe, this discharge structure comprises assembly shell and the case that is cavity setting, be provided with support frame one and support frame two on the internal perisporium of protruding ring and assembly shell respectively, a plurality of opening has all been seted up on support frame one and the support frame two, be provided with the non return subassembly on the case. The utility model has the advantages of preventing backflow and isolating impurities from entering the discharge pipe.

Description

Prevent immersible pump of impurity entering

Technical Field

The utility model belongs to the technical field of submersible pumps, and relates to a submersible pump capable of preventing impurities from entering.

Background

The submersible pump is an important device for pumping water from a deep well. When in use, the whole unit is submerged to work, and underground water is extracted to the ground surface, so that the unit is used for domestic water, mine emergency, industrial cooling, farmland irrigation, seawater lifting and ship load regulation, and can also be used for fountain landscape. The motion mode is as follows: before starting the pump, the suction tube and the pump must be filled with liquid. After the pump is started, the impeller rotates at a high speed, liquid in the impeller rotates along with the blades, the liquid flies away from the impeller and is ejected outwards under the action of centrifugal force, the speed of the ejected liquid in a pump shell diffusion chamber is gradually reduced, the pressure is gradually increased, then the liquid flows to a corresponding water collecting position from a discharge pipe at the outlet of the pump, such as a water collecting pit, a water collecting tank and the like.

Disclosure of Invention

The present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a submersible pump which prevents backflow of liquid, reduces the entrance of foreign substances, and facilitates maintenance and replacement.

The purpose of the utility model can be realized by the following technical scheme: a submersible pump for preventing impurities from entering comprises a motor main body with a motor shaft and a pump body with a water inlet and a water outlet, wherein the motor main body is detachably connected with the pump body through a filter screen cylinder, the motor shaft in the motor main body extends into the pump body, and an impeller assembly is arranged on the motor shaft in the pump body, the submersible pump is characterized in that the pump body consists of an upper pump body, a middle pump body and a lower pump body, the water inlet and the water outlet are respectively arranged on the upper body and the lower pump body, the outer end face of the upper pump body, which is positioned at the water outlet, is provided with an axially outward bulge, and a bulge ring part connected with a discharge pipe, the inner peripheral wall of the bulge ring part is provided with a bulge ring which is radially inward bulge, a discharge structure which is opened through hydraulic pressure is arranged between the bulge ring and the discharge pipe, and the discharge structure consists of an assembly shell and a valve core which are arranged in a hollow way, one end of the assembly shell is connected with the discharge pipe, the other end of the assembly shell is abutted to the upper end face of the protruding ring, a mounting cavity for installing the valve core is formed, a first support frame and a second support frame which are radially and inwardly protruding and used for supporting the core shaft are respectively arranged on the inner peripheral walls of the protruding ring and the assembly shell, a plurality of circulation holes which are arranged along the circumferential direction of the first support frame and the second support frame and used for liquid to flow through are respectively formed in the first support frame and the second support frame, and a non-return assembly which is sleeved on the valve core and used for preventing liquid from flowing back is arranged on the valve core.

In the submersible pump capable of preventing impurities from entering, the convex ring part is connected with the discharge pipe through threads, the cross section of the discharge pipe is arranged in a step shape, the discharge pipe is arranged on an annular groove in the peripheral wall of the step surface, the discharge pipe is arranged in the annular groove and is provided with a sealing ring, and the assembly shell is connected with the discharge pipe through threads.

In foretell immersible pump that prevents impurity entering, the up end of bulge loop portion be provided with the outside bellied bulge loop piece of axial, the periphery wall of this bulge loop piece with the inner peripheral wall of assembly shell is laminated in sliding, above-mentioned support frame one sets up on the inner peripheral wall of bulge loop piece.

In foretell immersible pump that prevents impurity entering, non return subassembly constitute by seal gasket and non return spring one, the both ends of non return spring one are contradicted with seal gasket and support frame two respectively to make seal gasket and bulge loop piece inconsistent through non return spring one, seal gasket and non return spring one between be provided with the cover and locate just have the rubber ring piece of cushioning effect on the case.

In the submersible pump capable of preventing impurities from entering, the outer peripheral wall of the valve core is provided with a limiting ring which protrudes outwards in the radial direction and is abutted against the sealing gasket, and the valve core is prevented from penetrating out of the first retainer.

In foretell immersible pump that prevents impurity entering, the case on still be provided with the cover and locate on the case, and prevent the liquid reflux to strengthen the non return unit of leakproofness, this non return unit is located two outsides of support frame, the assembly shell be located the support frame three that is provided with radial inside arch and supplies the non return unit installation on the periphery wall of support unit department, support frame three on also seted up a plurality of and set up and supply the circulation hole that the liquid flowed through along its circumferencial direction, the non return unit constitute by baffle and non return spring two, the both ends of non return spring two contradict with baffle and support frame three-phase respectively.

Compared with the prior art, this prevent immersible pump of impurity entering has following advantage:

1. the discharging structure which is opened through hydraulic pressure is arranged between the protruding ring and the discharging pipe, the valve core is provided with the non-return assembly which is sleeved on the valve core and prevents liquid from flowing back, the non-return sealing structure is additionally arranged at the water outlet, impurities brought back by liquid backflow are effectively prevented from entering the pump body, and meanwhile, the pump body is relatively convenient to disassemble, assemble and replace.

Drawings

Fig. 1 is a schematic view of a partial sectional structure of the submersible pump for preventing foreign materials from entering.

Fig. 2 is an enlarged view of circle a in the submersible pump for preventing the entry of foreign substances.

In the figure, 1, a motor main body; 2. an upper pump body; 3. a middle pump body; 4. a lower pump body; 5. a convex ring part; 6. a raised ring; 7. assembling the shell; 8. a valve core; 9. a mounting cavity; 10. a first support frame; 11. a second support frame; 12. a flow-through hole; 13. an annular groove; 14. a convex ring block; 15. sealing gaskets; 16. a first check spring; 17. a rubber ring sheet; 18. a limiting ring; 19. a third support frame; 20. a baffle plate; 21. and a second check spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in figures 1 and 2, the submersible pump for preventing impurities from entering comprises a motor main body 1 with a motor shaft and a pump body with a water inlet and a water outlet, wherein the motor main body 1 is detachably connected with the pump body through a filter screen cylinder, the motor shaft in the motor main body 1 extends into the pump body, an impeller assembly is arranged on the motor shaft positioned in the pump body, a water outlet in the pump body is provided with a drain pipe connected with the water outlet, the pump body consists of an upper pump body 2, a middle pump body 3 and a lower pump body 4, the upper pump body 2, the middle pump body 3 and the lower pump body 4 are connected through a plurality of bolts, the water inlet and the water outlet are respectively arranged on the upper body and the lower pump body 4, an axial outward bulge is arranged on the outer end surface of the upper pump body 2 positioned at the water outlet and is connected with a discharge pipe, and a bulge ring part 5 for the motor shaft to extend into the installation is arranged, a bulge ring 6 which radially inward bulges is arranged on the inner peripheral wall of the bulge ring part 5, the protruding ring 6 is positioned right above a motor shaft, a discharge structure opened and discharged through hydraulic pressure is arranged between the protruding ring 6 and a discharge pipe, the discharge structure consists of an assembly shell 7 and a valve core 8 which are arranged in a hollow way, one end of the assembly shell 7 is connected with the discharge pipe, the other end of the assembly shell 7 is abutted against the upper end surface of the protruding ring 6 through the discharge pipe and forms an installation cavity 9 for installing the valve core 8, a first support frame 10 and a second support frame 11 which are protruded inwards in the radial direction and used for supporting the valve core are respectively arranged on the inner peripheral walls of the protruding ring 6 and the assembly shell 7, a plurality of circulation holes 12 which are arranged along the circumferential direction and used for liquid to flow through are respectively arranged on the first support frame 10 and the second support frame 11, a non-return assembly which is sleeved on the valve core 8 and used for preventing liquid from flowing back is arranged on the valve core 8, and the non-return assembly consists of a sealing gasket 15 and a first non-return spring 16, two ends of the first check spring 16 are respectively abutted against the sealing gasket 15 and the second support frame 11, the sealing gasket 15 is abutted against the convex ring block 14 through the first check spring 16, and a rubber ring sheet 17 which is sleeved on the valve core 8 and has a buffering effect is arranged between the sealing gasket 15 and the first check spring 16.

In a further elaboration, in order to facilitate loading and unloading and ensure connection stability, the protruding ring part 5 is connected with the discharge pipe through threads, the cross section of the peripheral wall of the discharge pipe is in a step shape, the discharge pipe is located on the peripheral wall of the step surface and is provided with the annular groove 13, the discharge pipe is located in the annular groove 13 and is provided with the sealing ring, the assembly shell 7 is connected with the discharge pipe through threads, the spiral direction of the assembly shell 7 is the same as the spiral direction of the assembly of the discharge pipe, and when the discharge pipe is assembled, the step surface of the discharge pipe is abutted to the upper end face of the protruding ring part 5.

Preferably, the upper end surface of the protruding ring part 5 is provided with a protruding ring block 14 protruding outward in the axial direction, the outer circumferential wall of the protruding ring block 14 is in sliding fit with the inner circumferential wall of the assembling shell 7, and the support frame 10 is arranged on the inner circumferential wall of the protruding ring block 14.

To put it more specifically, in order to prevent the valve core 8 from separating, a radially outward protrusion is disposed on the outer peripheral wall of the valve core 8, and abuts against the sealing gasket 15, and a stop ring 18 for preventing the valve core 8 from penetrating out of the first holder is disposed on the outer peripheral wall.

In order to further explain, in order to improve the non-return and sealing effect, still be provided with the cover on case 8 on the case 8, and prevent the liquid backward flow, and strengthen the non return unit of leakproofness, this non return unit is located outside support frame two 11, the assembly shell 7 is provided with radial inside arch and supplies support frame three 19 of non return unit installation on being located the periphery wall of support unit department, also seted up a plurality of on support frame three 19 along its circumferencial direction setting and the circulation hole 12 that supplies the liquid to flow through, the non return unit comprises baffle 20 and non return spring two 21, the both ends of non return spring two 21 respectively with baffle 20 and support frame three 19 inconsistent.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A submersible pump for preventing impurities from entering comprises a motor main body (1) with a motor shaft and a pump body with a water inlet and a water outlet, wherein the motor main body (1) is detachably connected with the pump body through a filter screen cylinder, the motor shaft in the motor main body (1) extends into the pump body, and an impeller assembly is arranged on the motor shaft in the pump body, and is characterized in that the pump body consists of an upper pump body (2), a middle pump body (3) and a lower pump body (4), the water inlet and the water outlet are respectively arranged on the upper pump body and the lower pump body (4), a convex ring part (5) which is axially outwards protruded and connected with a discharge pipe is arranged on the outer end surface of the upper pump body (2) at the water outlet, a convex ring (6) which is radially inwards protruded is arranged on the inner peripheral wall of the convex ring part (5), and a discharge structure which is opened and discharged through hydraulic pressure is arranged between the convex ring (6) and the discharge pipe, the discharge structure is composed of an assembly shell (7) and a valve core (8), wherein the assembly shell (7) is arranged in a hollow mode, one end of the assembly shell (7) is connected with the discharge pipe, the other end of the assembly shell (7) is abutted to the upper end face of the protruding ring (6) and forms an installation cavity (9) for installing the valve core (8), a first support frame (10) and a second support frame (11) which are radially and inwards protruding and used for supporting a mandrel are arranged on the inner peripheral walls of the protruding ring (6) and the assembly shell (7) respectively, a plurality of circulation holes (12) which are arranged along the circumferential direction of the first support frame (10) and the second support frame (11) and used for liquid flowing through are formed in the first support frame (10) and the second support frame (11), and a non-return assembly which is sleeved on the valve core (8) and prevents liquid from flowing back is arranged on the valve core (8).

2. The submersible pump for preventing the entry of foreign substances according to claim 1, wherein the collar (5) is connected to the discharge pipe by a screw thread, the discharge pipe has a stepped cross section, the discharge pipe is located in an annular groove (13) on the outer peripheral wall of the stepped cross section, a sealing ring is arranged in the annular groove (13), and the assembly housing (7) is connected to the discharge pipe by a screw thread.

3. The submersible pump for preventing the entry of foreign substances as set forth in claim 1, wherein the upper end surface of the collar portion (5) is provided with a collar piece (14) protruding axially outward, the outer peripheral wall of the collar piece (14) is in sliding engagement with the inner peripheral wall of the assembly housing (7), and the first support frame (10) is disposed on the inner peripheral wall of the collar piece (14).

4. The submersible pump capable of preventing impurities from entering is characterized in that the check assembly consists of a sealing gasket (15) and a check spring I (16), two ends of the check spring I (16) are respectively abutted to the sealing gasket (15) and a support frame II (11), the sealing gasket (15) is abutted to the convex ring block (14) through the check spring I (16), and a rubber ring sheet (17) which is sleeved on the valve core (8) and has a buffering effect is arranged between the sealing gasket (15) and the check spring I (16).

5. The submersible pump for preventing the impurities from entering according to claim 4, characterized in that the outer peripheral wall of the valve core (8) is provided with a limiting ring (18) which is protruded radially outwards and is abutted against the sealing gasket (15) and used for preventing the valve core (8) from penetrating out of the first retainer.

6. The submersible pump capable of preventing impurities from entering according to claim 1, wherein the valve core (8) is further provided with a check unit which is sleeved on the valve core (8) and prevents liquid from flowing back and enhances sealing performance, the check unit is positioned outside the second support frame (11), a third support frame (19) which is radially and inwardly protruded and used for installing the check unit is arranged on the peripheral wall of the assembly shell (7) positioned at the support unit, the third support frame (19) is also provided with a plurality of flow holes (12) which are arranged along the circumferential direction of the third support frame and used for liquid to flow through, the check unit is composed of a baffle plate (20) and a second check spring (21), and two ends of the second check spring (21) are respectively abutted against the baffle plate (20) and the third support frame (19).