CN214304529U

CN214304529U - Integral plastic pump housing and water pump having the same

Info

Publication number: CN214304529U
Application number: CN202120169940.9U
Authority: CN
Inventors: 杨性楷; 谢华; 李道芳
Original assignee: Taizhou Yimin Electric Machinery Co Ltd
Current assignee: Taizhou Yimin Electric Machinery Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-28
Anticipated expiration: 2031-01-21

Abstract

The integral plastic pump shell comprises an A half shell and a B half shell; the edges of the half shell A and the half shell B are respectively provided with a welding edge A and a welding edge B, and the half shell A and the half shell B are connected into a whole through hot melting welding of the welding edge A and the welding edge B; through holes are formed in the centers of the half shell A and the half shell B to form a central opening; the shell A and the shell B are respectively provided with an annular connecting boss A and an annular connecting boss B, and the central opening is superposed with the central line of the annular connecting boss; the outer sides of the half shell A and the half shell B correspond to the welding edge A and the welding edge B respectively and are provided with an extruding groove A and an extruding groove B, and the top of the extruding groove A is abutted to the top of the extruding groove B. The utility model discloses an integral plastics pump case and water pump that has integral plastics pump case simple structure, outward appearance are pleasing to the eye, the reliability is high and light in weight.

Description

Integral plastic pump housing and water pump having the same

Technical Field

The utility model relates to a water pump case and water pump, concretely relates to integral plastics pump case and water pump that has integral plastics pump case.

Background

The pump casing of water pump is also called the pump body, spiral case, casing, has two kinds of materials of metal and nonmetal, and the metal material is mostly whole casting or punching press welding forming, and for the drawing of patterns is convenient, and the nonmetal pump casing is mostly plastics injection or mould pressing into two halves, then through mechanical assembly, it is taut with two halves casing through the bolt promptly, makes up into a complete pump casing.

The mechanical assembling combined shell has the following defects and shortcomings: the pump shell is a pressure-bearing part, and in order to prevent liquid leakage, the two half pump shells need to be tightened by adopting dense bolts, so that the structure is complicated; because the pump body is tightened by bolts, a joint surface must have certain rigidity, so that the connecting flange surfaces of the two half pump shell bodies must be thicker than the pressure-resistant thickness of the shell body and larger than the size of the pump body. Because of the requirement of corrosion resistance, the connecting bolts are all made of stainless steel, so that the manufacturing cost is undoubtedly increased by a large number of stainless steel bolts and the pump body with larger size; now the user requires the pump to be as light as possible for easy handling. The joint surface of the mechanical assembly type pump body adopts a large number of bolts, so that the weight of the shell is increased undoubtedly, and the requirement of a user on lighter weight is better;

the principle of the hot-melt welding is that after a welding port of the pump shell is heated to a molten state by a heating tool, the heating tool is taken out, two molten welding end faces of the pump shell are quickly attached and extruded together, specified pressure is applied and maintained for a certain time under the pressure, and the two molten welding end faces of the pump shell are fully cooled to normal temperature, so that the welding ports of the pump shell are mutually connected and fused and are fused into a whole to form a hot-melt welding joint meeting the requirements. In the prior art, there is a lack of integral plastic pump housing products obtained by using a hot-melt welding technique, and therefore, there is a need to develop an integral plastic pump housing and a water pump having the same.

SUMMERY OF THE UTILITY MODEL

To prior art's weak point, the utility model provides an integral plastics pump case and water pump that has integral plastics pump case, this integral plastics pump case and water pump that has integral plastics pump case simple structure, outward appearance pleasing to the eye, the reliability is high and light in weight.

The utility model discloses technical scheme as follows:

the integral plastic pump shell comprises an A half shell and a B half shell; the edges of the half shell A and the half shell B are respectively provided with a welding edge A and a welding edge B, and the half shell A and the half shell B are connected into a whole through hot melting welding of the welding edge A and the welding edge B; through holes are formed in the centers of the half shell A and the half shell B to form a central opening; the shell A and the shell B are respectively provided with an annular connecting boss A and an annular connecting boss B, and the central opening is superposed with the central line of the annular connecting boss; the outer sides of the half shell A and the half shell B are respectively provided with an A extruding groove and a B extruding groove corresponding to the welding edge A and the welding edge B, and the top of the A extruding groove is abutted to the top of the B extruding groove.

Compared with the prior art, the utility model discloses an integral plastics pump case has gained following beneficial effect who is showing:

1) the structure is simple. The two half shells are directly connected by hot-melt welding without connecting structures such as bolts and the like, and the pump body mechanism is simple;

2) the appearance is beautiful. Because be equipped with the crowded silo in the welding limit outside, can be sealed the confined space that the crowded silo formed by the unnecessary material of being extruded, can guarantee like this that the water pump shell is smooth clean and tidy.

3) The reliability is high. Pressure butt joint is adopted during welding, the strength of a welding seam reaches 90% of that of a base body, and the requirements of pumps with various pressures are met;

4) the weight is light. A large number of bolts are eliminated, the weight of the shell is reduced, and the requirement that the lighter the user is, the better the user is met.

Preferably, in the integral plastic pump shell of the integral plastic pump shell, the annular connecting boss A and the annular connecting boss B are provided with threaded holes which are arranged in an annular manner, and the threaded holes are used for connection in the assembling process, so that the connection is simple and reliable.

Preferably, in the integral plastic pump shell of the integral plastic pump shell, the thickness of the welding edge A and the thickness of the welding edge B are larger than that of the pump shell, and the welding edge is the joint of the two half shells and is also a weak joint, so that the thickness of the welding edge is increased, and the bonding strength of the pump shell is improved. The thickness of the welding edge A and the welding edge B is 4-8mm larger than that of the pump shell.

Preferably, in the integral plastic pump shell of the integral plastic pump shell, the connecting parts of the outlets of the half shell A and the half shell B are respectively provided with a clamping strip for quick assembly and disassembly, and the clamping strips are simple and reliable in assembly. The number of the clamping strips at the outlet connection part of the half shell A and the half shell B is two.

Preferably, in the integral plastic pump casing of the integral plastic pump casing, the outlet connection parts of the half shell a and the half shell B are respectively provided with a reinforcing block. Because the atress of exit linkage department is big, for the weak department of intensity, can strengthen the bonding strength of exit linkage department after setting up the boss.

The water pump with the integral plastic pump shell comprises a pump shell, a water pump motor, a water inlet joint and a base with a water suction port, wherein the pump shell is the integral plastic pump shell; the water pump motor, the water inlet joint and the annular connecting boss A are fixedly connected through threaded connection, a rotating shaft of the water pump motor is fixedly connected with the impeller, the central line of the impeller is overlapped with the central line of the central opening, and the base with the water suction port is fixedly connected with the annular connecting boss B through threaded connection. The water pump adopting the integral plastic pump shell has the advantages of simple structure, attractive appearance, high reliability and light weight.

Preferably, in the water pump with the integral plastic pump casing, the impeller is a double-suction impeller, the impeller includes a blade, an impeller hub and an impeller cover plate, one end of the blade is fixed to the impeller hub, the other end of the blade is fixed to the impeller cover plate, and the two sides of the impeller hub are symmetrically provided with the blade and the impeller cover plate. The impeller adopts the double suction impeller, and impeller wheel hub's bilateral symmetry is equipped with blade and impeller apron, and the double suction impeller can improve the flow of drawing water, can guarantee the water pump steady operation simultaneously.

Drawings

Fig. 1 is a schematic structural view of an integral plastic pump casing of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a view B-B of FIG. 2;

FIG. 5 is an enlarged view taken within circle C of FIG. 2;

fig. 6 is a schematic diagram of a hot water pump with an integral plastic pump housing.

The labels in the figures are: the device comprises a 1-A half shell, a 101-A annular connecting boss, a 102-A welding edge and a 103-A extruding groove; a 2-B half shell, a 201-B annular connecting boss, a 202-B welding edge and a 203-B extruding groove; 3-a water pump motor; 4-impeller, 401-blade, 402-impeller hub, 403-impeller cover plate; 5-a threaded hole; 6-clamping strips; 7-a reinforcing block; 8-a central opening; 9-water inlet section; 10-base with water suction port.

Detailed Description

The following description of the present invention, including the examples, is provided in connection with the accompanying drawings and the detailed description, but not intended as a basis for limiting the invention.

Example 1

Referring to fig. 1-5, the integral plastic pump casing of the present invention comprises a half casing a 1 and a half casing B2; the edges of the A half shell 1 and the B half shell 2 are respectively provided with an A welding edge 102 and a B welding edge 202, and the A welding edge 102 and the B welding edge 202 enable the A half shell 1 and the B half shell 2 to be connected into a whole through hot melting welding; through holes are formed in the centers of the half shell A1 and the half shell B2 to form a central opening 8; the shell A1 and the shell B2 are respectively provided with an annular connecting boss A101 and an annular connecting boss B201, and the central opening 8 is superposed with the central line of the annular connecting boss; the outer sides of the A half shell 1 and the B half shell 2 are respectively provided with an A extruding groove 103 and a B extruding groove 203 corresponding to the A welding edge 102 and the B welding edge 202, and the top of the A extruding groove 103 is abutted to the top of the B extruding groove 203.

See figures 1-5 for a specific embodiment of the present invention:

the ring-shaped connection boss 101A and the ring-shaped connection boss 201B are provided with ring-shaped array threaded holes 5, and the water pump motor 3, the water inlet joint 9 and the pump shell are connected through threads in the assembling process, so that the connection is simple and reliable.

The thickness of the welding edge A102 and the welding edge B202 is larger than that of the pump shell, and the welding edge is the joint of the two half shells and is also a weak joint, so that the thickness of the welding edge is increased, and the bonding strength of the pump shell is improved. The thickness of the welding edge A102 and the welding edge B202 is 4-8mm larger than that of the pump shell.

The outlet connection parts of the half shell A1 and the half shell B2 are respectively provided with a clamping strip 6 for quick assembly and disassembly, and the clamping strips 6 are simple and reliable in assembly. The number of the clamping strips 6 at the outlet connection part of the half shell A1 and the half shell B2 is two respectively.

And reinforcing blocks 7 are respectively arranged at the connection positions of the outlets of the half shell A1 and the half shell B2. Because the atress of exit linkage department is big, for the weak department of intensity, can strengthen the bonding strength of exit linkage department after setting up reinforcing block 7.

Example 2

Referring to fig. 6, the water pump with an integral plastic pump shell comprises a pump shell, a water pump motor 3, a water inlet joint 9 and a base 10 with a water suction port, wherein the pump shell is the integral plastic pump shell; the water pump motor 3, the water inlet joint 9 and the A annular connecting boss 101 are fixedly connected through threaded connection, a rotating shaft of the water pump motor 3 is fixedly connected with the impeller 4, the central line of the impeller 4 is superposed with the central line of the central opening 8, and the base 10 with the water suction port is fixedly connected with the B annular connecting boss 201 through threaded connection.

When the water pump is used, the water pump is installed as described in the above section, the water pipe is connected to the outlet of the water pump, the water pump sinks into water, the impeller 4 is driven to rotate after the water pump motor 3 is powered on, and water flows into the pump shell from the inlet of the pump shell through the water pipe and then is discharged from the outlet of the pump shell.

See fig. 6 for a specific embodiment of the present invention:

the impeller 4 is a double-suction impeller, the impeller 4 includes a blade 401, an impeller hub 402 and an impeller cover plate 403, one end of the blade 401 is fixed on the impeller hub 402, the other end is fixed on the impeller cover plate 403, and the two sides of the impeller hub 402 are symmetrically provided with the blade 401 and the impeller cover plate 403. The impeller 4 adopts a double-suction impeller, blades 401 and an impeller cover plate 403 are symmetrically arranged on two sides of an impeller hub 402, the double-suction impeller can improve the flow of pumping water, and the stable operation of the water pump can be ensured.

The above general description of the invention and the description of its specific embodiments in this application should not be construed as limiting the scope of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the scope of the present application according to the disclosure of the present application without departing from the components of the present invention.

Claims

1. Integral plastics pump case, its characterized in that: comprises a half shell A (1) and a half shell B (2); the edge of the half shell A (1) and the edge of the half shell B (2) are respectively provided with a welding edge A (102) and a welding edge B (202), and the welding edge A (102) and the welding edge B (202) are welded by hot melting to enable the half shell A (1) and the half shell B (2) to be connected into a whole; through holes are formed in the centers of the half shell A (1) and the half shell B (2) to form a central opening (8); the shell A (1) and the shell B (2) are respectively provided with an annular connecting boss A (101) and an annular connecting boss B (201), and the central opening (8) is superposed with the central line of the annular connecting boss; the outside of half shell (1) and half shell (2) of B corresponds with A welding limit (102) and B welding limit (202) respectively and is equipped with A crowded silo (103) and B crowded silo (203), the top of A crowded silo (103) top and the top of B crowded silo (203) offset.

2. The unitary plastic pump housing of claim 1, wherein: the A annular connecting boss (101) and the B annular connecting boss (201) are provided with threaded holes (5) which are arranged in an annular mode.

3. The unitary plastic pump housing of claim 1, wherein: the thickness of the welding edge A (102) and the thickness of the welding edge B (202) are larger than that of the pump shell.

4. The unitary plastic pump housing of claim 3, wherein: the thickness of the welding edge A (102) and the thickness of the welding edge B (202) are 4-8mm larger than that of the pump shell.

5. The unitary plastic pump housing of claim 1, wherein: and the outlets of the half shell A (1) and the half shell B (2) are respectively provided with a clamping strip (6) for quick assembly and disassembly.

6. The unitary plastic pump housing of claim 5, wherein: the outlets of the half shell A (1) and the half shell B (2) are respectively provided with two clamping strips (6) for quick assembly and disassembly.

7. The unitary plastic pump housing of claim 1, wherein: and reinforcing blocks (7) are respectively arranged at the outlet connection parts of the half shell A (1) and the half shell B (2).

8. Water pump with integral plastics pump case, including pump case and water pump motor (3), water inlet festival (9) and take water sucking mouth base (10), its characterized in that: the pump housing is an integral plastic pump housing of claim 1; the water pump motor (3), the water inlet joint (9) and the A annular connecting boss (101) are fixedly connected through threaded connection, a rotating shaft of the water pump motor (3) is fixedly connected with the impeller (4), the central line of the impeller (4) is coincided with the central line of the central opening (8), and the B annular connecting boss (201) is fastened with the base (10) with the water suction port through threaded connection.

9. The water pump having an integral plastic pump housing of claim 8, wherein: the impeller (4) is a double-suction impeller, the impeller (4) comprises blades (401), an impeller hub (402) and an impeller cover plate (403), one end of each blade (401) is fixed on the impeller hub (402), the other end of each blade is fixed on the impeller cover plate (403), and the blades (401) and the impeller cover plate (403) are symmetrically arranged on two sides of the impeller hub (402).