CN212106285U - Circulating pump - Google Patents
Circulating pump Download PDFInfo
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- CN212106285U CN212106285U CN202020618419.4U CN202020618419U CN212106285U CN 212106285 U CN212106285 U CN 212106285U CN 202020618419 U CN202020618419 U CN 202020618419U CN 212106285 U CN212106285 U CN 212106285U
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Abstract
The utility model discloses a circulating pump, include: the shell comprises a mounting hole and a supporting part, the mounting hole and the supporting part are both arranged at the top of the shell, the mounting hole is communicated with the inside of the shell, and the supporting part surrounds the edge of the mounting hole; the shield cover assembly comprises a cover body, a connecting portion and a first pit, the cover body is inserted into the mounting hole, the connecting portion are arranged at the top of the cover body, the connecting portion are arranged on the periphery of the cover body in a surrounding mode, the bottom surface of the connecting portion is abutted to the top surface of the supporting portion, the first pit is multiple in number, all the first pits are arranged on the bottom surface of the connecting portion, and the top surface of the supporting portion is welded to the bottom surface of the connecting portion. The utility model discloses a casing and the shield cover subassembly junction of circulating pump form unevenness's faying face to improve the cohesion of supporting part and connecting portion, make casing and shield cover subassembly closely laminate and be connected, improve the sealing performance of casing and shield cover subassembly junction. The utility model discloses can be applied to in the liquid pump field.
Description
Technical Field
The utility model relates to a liquid pump field, in particular to circulating pump.
Background
The stator of circulating pump is adorned in the casing, and rotor and impeller setting are equipped with the housing between stator and the rotor in the pump chamber, and the housing separates stator and rotor, and the housing plays sealed effect to the stator, and the housing is kept apart in the stator outside with outside liquid. In the existing circulating pump, the shielding sleeve is connected to the casing, a sealing gasket is arranged between the shielding sleeve and the casing, the shielding sleeve and the casing are tightly pressed and hermetically connected through screws, however, the sealing performance of the connecting mode is poor.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a circulation pump to solve one or more technical problems in the prior art and to provide at least one of the beneficial options and creation conditions.
The technical scheme adopted for solving the technical problems is as follows:
a circulation pump, comprising:
the shell comprises a mounting hole and a supporting part, the mounting hole and the supporting part are both arranged at the top of the shell, the mounting hole is communicated with the inside of the shell, and the supporting part surrounds the edge of the mounting hole;
the shield cover subassembly, the shield cover subassembly is including the cover body, connecting portion and first pit, the cover body insert in the mounting hole, connecting portion set up in the top of the cover body, connecting portion around set up in the periphery of the cover body, the bottom surface of connecting portion with the top surface of supporting part offsets, first pit has a plurality ofly, all first pit all set up in on the bottom surface of connecting portion, the top surface of supporting part fuse in the bottom surface of connecting portion.
The utility model has the advantages that: the bottom surface of the connecting part of the sleeve body of the shielding sleeve assembly is provided with a plurality of first pits, the top surface of the supporting part at the edge of the mounting hole of the shell is abutted against the bottom surface of the connecting part, the top surface of the supporting part is welded on the bottom surface of the connecting part, the supporting part and the connecting part are welded into a whole to form sealing connection, partial material of the top surface of the supporting part is welded into the first pits on the bottom surface of the connecting part, and the shearing strength of the joint of the shell and the shielding sleeve assembly is improved; first pit makes the bottom surface roughness of connecting portion improve, after the partial material of the top surface of supporting part melts into first pit, the top surface roughness of supporting part improves, form unevenness's faying surface between the top surface of supporting part and the bottom surface of connecting portion, thereby improve the cohesion of the top surface of supporting part and the bottom surface of connecting portion, improve the intensity of casing and housing assembly junction, make casing and housing assembly closely laminate and be connected, improve the sealing performance of casing and housing assembly junction.
As a further improvement of the above technical solution, the shielding cover assembly further includes:
the sleeve body is of a hollow structure, the concave cavity is arranged in the sleeve body, the opening of the concave cavity faces upwards, and at least one part of the sleeve body is inserted into the mounting hole;
a plurality of second pits are formed, and all the second pits are arranged on the inner wall of the bottom of the concave cavity;
the mounting seat is arranged in the concave cavity, the bottom surface of the mounting seat is abutted against the inner wall of the bottom of the concave cavity, the bottom surface of the mounting seat is welded to the inner wall of the bottom of the concave cavity in a welding mode, the mounting seat comprises a shaft hole, and the shaft hole is vertically arranged in the mounting seat;
the central shaft is vertically arranged in the concave cavity, and the lower end of the central shaft is fixedly arranged in the shaft hole.
The inner wall of the bottom of the concave cavity in the sleeve body is provided with a second concave pit, the bottom surface of the mounting seat is welded on the inner wall of the bottom of the concave cavity, the mounting seat and the sleeve body are welded into a whole, the rotor rotates around the central shaft during working, the central shaft has a tendency of rotating along with the central shaft due to the action of friction force after rotating, the lower end of the central shaft is fixedly arranged in a shaft hole of the mounting seat, so that shearing force exists at the joint of the mounting seat and the inner wall of the bottom of the concave cavity, partial material of the bottom surface of the mounting seat is welded into the second concave pit of the inner wall of the bottom of the concave cavity; the roughness of the bottom inner wall of cavity is improved to the second pit, and after the partial material of the bottom surface of mount pad melted into the second pit, the bottom surface roughness of mount pad improved, formed concave-convex faying face between the bottom surface of mount pad and the bottom inner wall of cavity to improve the cohesion of the bottom surface of mount pad and the bottom inner wall of cavity, the mount pad was connected with the bottom inner wall of cavity in close fitting, prevented that the connection of mount pad and the bottom inner wall of cavity from losing efficacy.
As a further improvement of the above technical solution, the depth of the second concave pit is between one tenth and three tenths of the thickness of the bottom wall of the concave cavity.
The depth of the second concave pit is one tenth to three tenths of the thickness of the bottom wall of the concave cavity, so that a complete welding point can be formed, and the influence on the surface flatness of the outer wall of the bottom of the concave cavity is avoided.
As a further improvement of the technical scheme, the cross section of the lower end of the central shaft is D-shaped, and the cross section of the shaft hole is matched with that of the lower end of the central shaft.
The cross section shape of the lower end of the central shaft is D-shaped, the cross section shape of the shaft hole is matched with that of the central shaft, and the central shaft is fixed in the shaft hole, so that the relative rotation between the lower end of the central shaft and the shaft hole is avoided.
As a further improvement of the above technical solution, all the second recesses are uniformly distributed on the inner wall of the bottom of the cavity.
All second pits evenly distributed are on the bottom inner wall of cavity, and the bottom surface butt fusion of mount pad is on the bottom inner wall of cavity, and the joint strength of the different regions of junction of mount pad and cavity is roughly the same for the intensity of the junction of mount pad and cavity is whole to be improved, and the mount pad is difficult not hard up.
As a further improvement of the technical scheme, the mounting seat is made of plastics, and the sleeve body is made of stainless steel materials.
The cover body is made for stainless steel material, and the second pit on the bottom inner wall of cavity can form through the punching press fast, and manufacturing process is simple, and the mount pad is made for plastics, and the bottom surface butt fusion of mount pad is on the bottom inner wall of cavity, because the melting point of mount pad is lower, is favorable to the partial material of the bottom surface of mount pad to melt in the second pit to improve the shear strength of mount pad and cavity junction, make the butt fusion of mount pad and cavity more firm.
As a further improvement of the above technical solution, all the first concave pits are uniformly distributed on the bottom surface of the connecting portion.
All first pits evenly distributed are on the bottom surface of connecting portion, and the intensity of the different regions in junction of connecting portion and supporting part is roughly the same for the joint strength of casing and the junction of shield cover subassembly is whole to be improved, makes casing and shield cover subassembly closely laminate and is connected, thereby improves the sealing performance of casing and shield cover subassembly junction.
As a further improvement of the above technical solution, the connecting portion includes a bending portion, an edge of the connecting portion is bent downward to form the bending portion, the supporting portion includes a recessed portion, a portion of a top surface of the supporting portion is recessed downward to form the recessed portion, the recessed portion and the bending portion are matched with each other, and the bending portion is embedded in the recessed portion.
The connecting portion edge sets up the portion of bending downwards, sets up undercut's depressed part on the supporting part top surface, and the portion of bending imbeds in the depressed part, and the edge formation of connecting portion is bordured the structure, improves the intensity of the junction of connecting portion and supporting part, forms tortuous connection face between the portion of bending at connecting portion edge and the depressed part of supporting part for outside fluid is difficult for the infiltration, thereby improves the sealing performance of casing and housing assembly junction.
As a further improvement of the technical scheme, the sleeve body and the connecting part are made of stainless steel materials.
The sleeve body is made of stainless steel materials, the rotor is placed in the sleeve body, the rotor rotates when the circulating pump works, and the sleeve body and the connecting part are made of stainless steel materials, so that the wear resistance and the heat resistance of the sleeve body are improved, and the sleeve body is prevented from being worn and damaged after the circulating pump is used for a long time; connecting portion make for stainless steel material, and first pit on the bottom surface of connecting portion can form through the punching press fast, and manufacturing process is simple, and the casing is made for plastics, and the supporting part fuse of casing connects on the connecting portion of the cover body, and the melting point of casing is lower, is favorable to the partial material of the top surface of supporting part to melt in first pit to improve the shear strength of casing and shield cover subassembly junction, make the butt fusion of casing and shield cover subassembly more firm.
As a further improvement of the above technical solution, a depth of the first recess is between one tenth and three tenths of a thickness of the connecting portion.
The depth of the first concave pit is one tenth to three tenths of the thickness of the connecting part, so that a complete welding point can be formed, and the influence on the surface flatness of the top surface of the connecting part is avoided.
Drawings
The present invention will be further explained with reference to the drawings and examples;
FIG. 1 is a cross-sectional view of one embodiment of a circulation pump provided by the present invention;
fig. 2 is a sectional view of the circulating pump provided by the present invention, wherein the housing is assembled with the shielding case assembly;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
fig. 5 is a sectional view of the housing of an embodiment of the circulation pump provided by the present invention;
fig. 6 is a schematic perspective view of a sleeve and a connecting portion of an embodiment of the circulation pump of the present invention;
fig. 7 is a schematic perspective view of the circulating pump according to the present invention, wherein the sleeve body and the connecting portion are at another angle;
fig. 8 is a bottom view of the sleeve and the connecting portion in an embodiment of the circulation pump of the present invention;
fig. 9 is a top view of the sleeve and the connecting portion in an embodiment of the circulation pump of the present invention;
fig. 10 is a sectional view of the sleeve and the connecting portion in one embodiment of the circulation pump of the present invention.
100. The sealing structure comprises a shell, 110, mounting holes, 120, a supporting part, 121, a concave part, 200, a sleeve body, 210, a connecting part, 211, a first concave pit, 212, a bent part, 220, a concave cavity, 221, a second concave pit, 230, a mounting seat, 231, a shaft hole, 240, a central shaft, 300, a pump cover, 301, a sealing ring, 400, a stator, 500 and a rotor.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
With reference to fig. 1 to 10, the circulation pump of the present invention makes the following embodiments:
the circulating pump comprises a shell 100 and a shielding sleeve assembly, wherein an accommodating inner cavity is arranged inside the shell 100, a mounting hole 110 is formed in the top of the shell 100, the mounting hole 110 penetrates through the top wall of the shell 100, the mounting hole 110 is communicated with the inside of the shell 100, a supporting part 120 is arranged around the edge of the mounting hole 110, namely the top wall of the shell 100 is reserved outside the edge of the mounting hole 110, the top wall of the shell 100 forms the supporting part 120, the top surface of the supporting part 120 is a horizontal plane, the shielding sleeve assembly comprises a sleeve body 200, the sleeve body 200 is of a thin-wall sleeve structure, the middle part of the sleeve body 200 is downwards recessed to form a cavity 220, the opening of the cavity 220 is upward, the top edge of the sleeve body 200 horizontally extends outwards to form a connecting part 210, the connecting part 210 surrounds the top edge of the cavity 220 by one circle, the outer side wall of the cavity 220, that is, the interior of the cavity 220 can accommodate the rotor to rotate around the axis in the cavity 220, for example, the exterior of the rotor is a cylinder, the interior of the cavity 220 may be a prism with a volume larger than that of the rotor, the interior of the cavity 220 may also be a cylinder matched with the rotor, the interior of the cavity 220 may also be an irregular solid in which the rotor can rotate around the axis, in this embodiment, the cavity 220 is a cylindrical cavity, the mounting hole 110 is a circular hole, the mounting hole 110 is matched with the exterior of the cavity 220, the sleeve body 200 is inserted into the mounting hole 110 of the casing 100, the cavity 220 is disposed in the sleeve body 200, the opening of the cavity 220 faces upward, the top edge of the sleeve body 200 is surrounded by the connecting portion 210, the connecting portion 210 is an annular structure, the exterior of the casing 100 is a cylinder, the supporting portion 120 at the top of the casing 100 is, the bottom surface of the connection portion 210 abuts against the top surface of the support portion 120.
The bottom surface of the connecting portion 210 is provided with a plurality of first concave pits 211, the openings of the first concave pits 211 face downwards, the first concave pits 211 are micro grooves, the first concave pits 211 can be formed by means of stamping, for example, micro convex points protruding upwards are arranged on the top surface of a lower die of a stamping die, the bottom surface of the connecting portion 210 of the sleeve body 200 is placed on the top surface of the lower die, the bottom surface of the upper die is a plane, the bottom surface of the upper die abuts against the top surface of the connecting portion 210, the convex points are contacted with the bottom surface of the connecting portion 210 through stamping, and the convex points of the lower die form the first concave pits 211, which are concave upwards.
For example, when the jacket body 200, the connection portion 210 and the housing 100 are made of metal materials, the bottom surface of the connection portion 120 is abutted against the top surface of the support portion 120, and the top surface of the support portion 120 is welded to the bottom surface of the connection portion 210, and the jacket body 200, the connection portion 210 and the housing 100 are welded by pressure welding, the support portion 120 is heated to melt the top surface of the support portion 120, and after the top surface of the support portion 120 and the bottom surface of the connection portion 210 are compacted, a part of the material on the top surface of the support portion 120 is melted into the first recess 211 on the bottom surface of the connection portion 210, the roughness of the top surface of the support portion 120 is increased by the first recess 211, and an uneven joint surface is formed between the top surface of the support portion 120 and the bottom surface of the connection portion 210, so that the bonding force between the top surface of the support portion 120 and the bottom surface of the, so that the housing 100 is closely attached to the shielding sleeve assembly; in this embodiment, the sheath 200 and the connecting portion 210 are made of stainless steel, the housing 100 is made of plastic, the sheath 200 and the connecting portion 210 are used as inserts for injection molding of the housing 100, when the housing 100 is manufactured by injection molding, the sheath 200 and the connecting portion 210 are disposed in a mold, the sheath 200 and the connecting portion 210 form a part of the mold, when the housing 100 is formed by injection molding, the supporting portion 120 of the housing 100 abuts against the connecting portion 210, so that the top surface of the supporting portion 120 of the housing 100 is welded to the bottom surface of the connecting portion 210, a part of plastic on the top surface of the supporting portion 120 is melted into the first recess 211 on the bottom surface of the connecting portion 210, and in order to enhance the connection strength, a part of plastic wraps the end of.
The depth of the first concave pit 211 is between one tenth to three tenths of the thickness of the connecting portion 210, that is, the depth of the first concave pit 211 is related to the thickness of the connecting portion 210, and a part of the connecting portion 210 is recessed upwards to form the first concave pit 211.
The edge of the connecting portion 210 is bent downward to form a bent portion 212, in this embodiment, the edge of the connecting portion 210 is bent downward and vertically and then bent toward the horizontal direction, so that the cross section of the bent portion 212 forms an "L" shaped structure, that is, the edge of the annular connecting portion 210 forms an annular bent portion 212, the position of the casing 100 corresponding to the bent portion 212 is recessed downward to form a recessed portion 121, the shape of the recessed portion 121 is matched with the shape of the bent portion 212, the shape of the recessed portion 121 is an annular groove, and the bent portion 212 is embedded into the recessed portion 121.
The mounting seat 230 is arranged in the cavity 220 of the sleeve body 200, the bottom inner wall of the cavity 220 abuts against the bottom surface of the mounting seat 230, the bottom surface of the mounting seat 230 is welded on the bottom inner wall of the cavity 220, in the embodiment, the bottom surface of the mounting seat 230 abuts against the bottom inner wall of the cavity 220, the bottom surface of the mounting seat 230 is welded on the bottom inner wall of the cavity 220, a plurality of second concave pits 221 are arranged on the bottom inner wall of the cavity 220, the bottom inner wall of the cavity 220 is downwards sunken to form the second concave pits 221, all the second concave pits 221 are uniformly distributed on the bottom inner wall of the cavity 220, the manufacturing process of the second concave pits 221 is similar to that of the first concave pits 211, the bottom surface of the mounting seat 230 is welded on the bottom inner wall of the cavity 220, when the mounting seat 230 and the sleeve body 200 are made of metal materials, the welding can be realized by using pressure welding, the mounting seat 230 is heated, the bottom surface of the mounting seat 230 is melted, part of the material on the bottom surface of the mounting seat 230 is melted into the second concave pit 221 on the inner wall of the bottom of the concave cavity 220, the roughness of the inner wall of the bottom of the concave cavity 220 is improved by the second concave pit 221, after part of the material on the bottom surface of the mounting seat 230 is melted into the second concave pit 221, the roughness of the bottom surface of the mounting seat 230 is improved, a concave-convex combination surface is formed between the bottom surface of the mounting seat 230 and the inner wall of the bottom of the concave cavity 220, so that the combination force between the bottom surface of the mounting seat 230 and the inner wall of the bottom of the concave cavity 220 is improved, and the mounting seat 230 is; in this embodiment, the mounting base 230 is made of plastic, the sheath 200 is made of stainless steel, the sheath body 200 serves as an insert for injection molding of the mounting seat 230, and when the mounting seat 230 is manufactured by injection molding, the sleeve body 200 is disposed in a mold, the sleeve body 200 forms a portion of the mold, and when the mounting seat 230 is formed by injection molding, the bottom surface of the mounting seat 230 abuts against the inner wall of the bottom of the concave cavity 220 of the sleeve body 200, the outer side wall of the mounting seat 230 abuts against the inner side wall of the bottom of the concave cavity 220, so that the bottom surface of mounting block 230 is welded to the inner bottom wall of cavity 220, the outer sidewall of mounting block 230 is welded to the inner bottom wall of cavity 220, a portion of plastic on the bottom surface of mounting block 230 is melted into second recess 221 of the inner bottom wall of cavity 220, in order to increase the connection strength, a raised annular step is arranged at the edge of the inner wall of the bottom of the cavity 220, so that the bottom edge of the mounting seat 230 is better welded with the bottom inner wall edge of the cavity 220.
The depth of the second concave pit 221 is between one tenth and three tenths of the thickness of the bottom wall of the cavity 220, that is, the depth of the second concave pit 221 is related to the thickness of the bottom wall of the cavity 220, and a part of the cavity 220 is concave downwards to form the second concave pit 221.
The middle of mount pad 230 sets up shaft hole 231, shaft hole 231 is the round hole, shaft hole 231 sets up vertically in mount pad 230, center pin 240 is the cylinder axle, center pin 240 sets up vertically in cavity 220, the lower extreme of center pin 240 inserts in shaft hole 231, center pin 240 sets up fixedly in mount pad 230's shaft hole 231, the lower extreme cross-sectional shape of center pin 240 is "D" type, the cross-sectional shape of shaft hole 231 and the lower extreme cross-sectional shape phase-match of center pin 240, the upper portion of shaft hole 231 is the round hole, the lower part cross-sectional shape of shaft hole 231 is "D" type, the lower extreme of center pin 240 inserts in shaft hole 231.
The stator 400 of circulating pump sets up in casing 100, stator 400 sets up between the inside wall of casing 100 and the lateral wall of the cover body 200, the rotor 500 of circulating pump sets up in the cavity 220 of the cover body 200, rotor 500 overlaps locates on center pin 240, cover body 200 establishes pump cover 300 with the top lid of casing 100, the below of pump cover 300 is uncovered, a partial bottom surface at the below edge of pump cover 300 offsets with the top surface at the top edge of casing 100, be provided with sealing washer 301 on another part bottom surface at the below edge of pump cover 300, sealing washer 301 sets up between the bottom surface of pump cover 300 and the top surface of the portion of bending 212 of the cover body 200, the bottom surface of sealing washer 301 offsets with the top surface of the portion of bending 212 of the cover body 200.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (10)
1. A circulation pump, characterized by: the method comprises the following steps:
the shell (100), the shell (100) comprises a mounting hole (110) and a supporting part (120), the mounting hole (110) and the supporting part (120) are both arranged at the top of the shell (100), the mounting hole (110) is communicated with the interior of the shell (100), and the supporting part (120) surrounds the edge of the mounting hole (110);
the shield cover assembly, the shield cover assembly is including the cover body (200), connecting portion (210) and first pit (211), the cover body (200) insert in mounting hole (110), connecting portion (210) set up in the top of the cover body (200), connecting portion (210) around set up in the periphery of the cover body (200), the bottom surface of connecting portion (210) with the top surface of supporting part (120) offsets, first pit (211) have a plurality ofly, all first pit (211) all set up in on the bottom surface of connecting portion (210), the top surface of supporting part (120) fuse in the bottom surface of connecting portion (210).
2. The circulation pump of claim 1, wherein: the shield assembly further comprises:
the sleeve body (200) is of a hollow structure, the cavity (220) is arranged in the sleeve body (200), the opening of the cavity (220) faces upwards, and at least one part of the sleeve body (200) is inserted into the mounting hole (110);
a plurality of second concave pits (221), wherein all the second concave pits (221) are arranged on the inner wall of the bottom of the concave cavity (220);
the mounting seat (230) is arranged in the concave cavity (220), the bottom surface of the mounting seat (230) is abutted against the inner wall of the bottom of the concave cavity (220), the bottom surface of the mounting seat (230) is welded on the inner wall of the bottom of the concave cavity (220), the mounting seat (230) comprises a shaft hole (231), and the shaft hole (231) is vertically arranged in the mounting seat (230);
the central shaft (240) is vertically arranged in the cavity (220), and the lower end of the central shaft (240) is fixedly arranged in the shaft hole (231).
3. The circulation pump of claim 2, wherein: the depth of the second concave pit (221) is between one tenth and three tenths of the thickness of the bottom wall of the concave cavity (220).
4. The circulation pump of claim 2, wherein: the cross-sectional shape of the lower end of the central shaft (240) is D-shaped, and the cross-sectional shape of the shaft hole (231) is matched with the cross-sectional shape of the lower end of the central shaft (240).
5. The circulation pump of claim 2, wherein: all the second pits (221) are uniformly distributed on the inner wall of the bottom of the concave cavity (220).
6. The circulation pump of claim 2, wherein: the mounting seat (230) is made of plastics, and the sleeve body (200) is made of stainless steel materials.
7. The circulation pump of claim 1, wherein: all the first pits (211) are uniformly distributed on the bottom surface of the connecting part (210).
8. The circulation pump of claim 1, wherein: the connecting portion (210) comprises a bending portion (212), the edge of the connecting portion (210) is bent downwards to form the bending portion (212), the supporting portion (120) comprises a concave portion (121), one part of the top surface of the supporting portion (120) is recessed downwards to form the concave portion (121), the concave portion (121) and the bending portion (212) are matched with each other, and the bending portion (212) is embedded into the concave portion (121).
9. The circulation pump of claim 1, wherein: the shell (100) is made of plastics, and the sleeve body (200) and the connecting part (210) are made of stainless steel materials.
10. The circulation pump of claim 1, wherein: the depth of the first recess (211) is between one tenth and three tenths of the thickness of the connection portion (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020618419.4U CN212106285U (en) | 2020-04-22 | 2020-04-22 | Circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020618419.4U CN212106285U (en) | 2020-04-22 | 2020-04-22 | Circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212106285U true CN212106285U (en) | 2020-12-08 |
Family
ID=73612686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020618419.4U Active CN212106285U (en) | 2020-04-22 | 2020-04-22 | Circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212106285U (en) |
-
2020
- 2020-04-22 CN CN202020618419.4U patent/CN212106285U/en active Active
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