CN115289025A

CN115289025A - Water pump

Info

Publication number: CN115289025A
Application number: CN202210930102.8A
Authority: CN
Inventors: 孙作俊; 陈伟桃; 陈嘉祺; 阳重阳; 梁善衡; 钱伟斌; 柏艳艳; 周俊芳
Original assignee: Guangdong Beikong Environmental Protection Equipment Co ltd
Current assignee: Guangdong Beikong Environmental Protection Equipment Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-04

Abstract

The invention discloses a water pump, which comprises an impeller, a pump body and a cutter platform, wherein the pump body is provided with a rotating shaft, and the impeller comprises an impeller body, a buffering shaft sleeve, a buffering shaft inner sleeve and a buffering elastic piece; the buffering shaft sleeve is inserted into a shaft sleeve of the impeller body, the rotating shaft is in transmission connection with the buffering shaft sleeve, and a first bulge structure is arranged on the outer side wall of the buffering shaft sleeve; the buffering shaft sleeve penetrates through the buffering shaft inner sleeve, and the first bulge structure of the buffering shaft sleeve drives the impeller body to rotate through the buffering shaft inner sleeve; the buffering elastic part is arranged in the buffering shaft inner sleeve, and the buffering shaft sleeve penetrates through the buffering elastic part. The buffering elastic piece is sleeved on the buffering shaft sleeve, and the buffering elastic piece is abutted against the impeller body, so that the impeller body is elastically connected with the buffering shaft sleeve, and when sundries are blocked at the front end of the impeller, the impeller body can retreat, so that the sundries are prevented from being blocked, and the impeller is prevented from being blocked. The invention can be widely applied to the technical field of water pumps.

Description

Water pump

Technical Field

The invention relates to the technical field of water pumps, in particular to a water pump.

Background

The water pump is as the equipment that sewage treatment was used commonly, and in the use of water pump, the sewage is thoughtlessly had debris often, because the impeller of current water pump itself does not have the cutting function, after debris entering water pump slightly, debris can not pass through the impeller, blocks up easily, blocks up the damage that the impeller leads to the unable normal operation of water pump or even leads to the water pump.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present invention provides a water pump, which adopts the following technical scheme.

The water pump provided by the invention comprises an impeller, a pump body and a cutter platform, wherein the cutter platform is positioned at the front end of the impeller, the pump body is provided with a rotating shaft, the impeller comprises an impeller body, a buffering shaft sleeve, a buffering shaft inner sleeve and a buffering elastic member, the front end of the impeller body is provided with blades, and the blades are provided with cutting edges; the buffering shaft sleeve is inserted into the shaft sleeve of the impeller body, the rotating shaft is inserted into the buffering shaft sleeve, the rotating shaft is in transmission connection with the buffering shaft sleeve, and a first protruding structure is arranged on the outer side wall of the buffering shaft sleeve; the buffering shaft sleeve is arranged in the shaft sleeve of the impeller body, the buffering shaft sleeve penetrates through the buffering shaft sleeve, and the first protruding structure of the buffering shaft sleeve drives the impeller body to rotate through the buffering shaft sleeve; the buffering elastic part is arranged in the buffering shaft inner sleeve, and the buffering shaft sleeve penetrates through the buffering elastic part; the shaft sleeve of the impeller body is provided with a first hole shoulder facing the rear end of the impeller body, one end of the buffering elastic piece is used for abutting against the first hole shoulder, and the other end of the buffering elastic piece is used for abutting against the first protruding structure.

In some embodiments of the present invention, the impeller includes a buffer shaft sleeve disposed in a shaft sleeve of the impeller body, the buffer shaft sleeve penetrates the buffer shaft sleeve, and the buffer shaft sleeve abuts against a rear end of the buffer shaft sleeve.

In some embodiments of the invention, the impeller includes a rubber sleeve disposed in the buffer shaft outer sleeve, and the buffer shaft sleeve penetrates the rubber sleeve.

In some embodiments of the invention, the impeller comprises a first threaded connection provided with an external thread, the buffer shaft sleeve is provided with an internal thread, the first threaded connection is in threaded connection with the buffer shaft sleeve, and the first threaded connection is used for connecting with the rotating shaft.

In some embodiments of the present invention, the first threaded connector is provided with a first connection hole, the first connection hole penetrates through the first threaded connector in an axial direction of the first threaded connector, a front end of the rotating shaft is mounted with the first threaded connector through a second threaded connector penetrating through the first connection hole, and a threaded hole connected with the second threaded connector is provided at the front end of the rotating shaft.

In some embodiments of the invention, the impeller includes a locking ring, the side wall of the locking ring is provided with an axial notch, the axial notch extends from the front end to the rear end of the locking ring, the locking ring has a tapered hole, the tapered hole penetrates through the locking ring, the large diameter end of the tapered hole is located at the rear end of the locking ring, the front end side wall of the rotating shaft is provided with a tapered side wall, the front end of the rotating shaft is inserted into the locking ring, and the outer wall of the locking ring is in contact with the inner wall of the buffer shaft sleeve.

In some embodiments of the invention, the buffer shaft inner sleeve is provided with a clamping hole, and the clamping hole penetrates through the buffer shaft inner sleeve along the axial direction of the buffer shaft inner sleeve; under the condition that the buffering shaft sleeve rotates, the first protruding structure of the buffering shaft sleeve abuts against the inner wall of the clamping hole, so that the buffering shaft sleeve is in transmission connection with the buffering shaft inner sleeve.

In some embodiments of the present invention, a gap is left between the inner wall of the card hole and the first protrusion structure.

In some embodiments of the invention, a sewage draining groove is arranged on the rear side surface of the cutter platform, and two ends of the sewage draining groove respectively extend to the inner wall and the outer wall of the cutter platform to form two ports.

In some embodiments of the invention, the dirt discharge groove is arranged on the rear side of the cutter platform along the spiral track of the blade.

The embodiment of the invention has at least the following beneficial effects: the buffering elastic piece is sleeved on the buffering shaft sleeve, and the buffering elastic piece is used for abutting against the impeller body, so that elastic connection between the impeller body and the buffering shaft sleeve is realized, when sundries block the front end of the impeller, the impeller body can retreat, the sundries are prevented from blocking an area between the impeller and the cutter platform, and the impeller is prevented from being blocked by the sundries. The invention can be widely applied to the technical field of water pumps.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings.

FIG. 1 is a block diagram of an impeller, a spindle, and a tool post.

Fig. 2 is a structural view of the tool post.

Fig. 3 is a structural view of the impeller and the rotating shaft.

Fig. 4 is an exploded view of the structure of fig. 3.

Fig. 5 is a cross-sectional view of the structure of fig. 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., are used in an orientation or positional relationship indicated based on the drawings, it is merely for convenience of description and simplicity of description, and it is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, is not to be considered as limiting the present invention. The features defined as "first" and "second" are used to distinguish feature names rather than having a special meaning, and further, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention relates to a water pump, which comprises an impeller and a pump body, wherein the pump body is provided with a rotating shaft 201, and the rotating shaft 201 is used for being in transmission connection with the impeller. The impeller comprises an impeller body 100, blades are arranged at the front end of the impeller body 100, the blades are provided with cutting edges, the pump body drives the impeller body 100 to rotate, and the cutting edges of the blades can cut sundries in the rotating process of the impeller.

With reference to the drawings, the water pump includes a cutter platform 202, the cutter platform 202 is arranged at the front end of the water pump, specifically, the cutter platform 202 is located at the front end of the impeller, a cavity is formed in the middle of the cutter platform 202, impurities enter from the cavity in the middle of the cutter platform 202, and the rotating impeller cuts the impurities.

In some examples, the rear side of the tool post 202 is provided with a drainage groove 203, two ends of the drainage groove 203 respectively extend to the inner wall and the outer wall of the tool post 202 to form two ports, and specifically, the drainage groove 203 extends from the side of the cavity in the middle of the tool post 202 to the outer side of the tool post 202, so that debris chips formed by impeller cutting can be discharged along the drainage groove 203.

Further, the dirt discharge groove 203 is arranged on the rear side face of the cutter platform 202 along the spiral track of the blade, debris chips formed by cutting of the impeller can be thrown out along the spiral track of the blade, and the dirt discharge groove 203 is arranged along the spiral track, so that the debris chips can be conveniently discharged.

With reference to the drawings, a shaft sleeve is provided in the middle of the impeller body 100, the shaft sleeve penetrates from the front end to the rear end of the impeller body 100, the impeller includes a buffer shaft sleeve 101, the buffer shaft sleeve 101 is inserted into the shaft sleeve of the impeller body 100, and a seal ring 109 is provided between the front end side wall of the shaft sleeve of the impeller body 100 and the outer wall of the buffer shaft sleeve 101.

The rotating shaft 201 is inserted into the buffering shaft sleeve 101, and the rotating shaft 201 is in transmission connection with the buffering shaft sleeve 101. Specifically, the rotating shaft 201 is inserted into the rear end of the buffer shaft sleeve 101, and the buffer shaft sleeve 101 drives the impeller body 100 to rotate.

As an embodiment, the impeller includes a first threaded connection 107, the first threaded connection 107 is provided with an external thread, the buffer shaft sleeve 101 is provided with an internal thread, the first threaded connection 107 is installed from the rear end of the buffer shaft sleeve 101, the first threaded connection 107 is in threaded connection with the buffer shaft sleeve 101, and the first threaded connection 107 is used for connecting with the rotating shaft 201. With reference to the drawings, a head portion protruding to the side surface is provided at the rear end of the first threaded connection member 107 for abutting against a shaft shoulder of the inner wall of the shaft sleeve of the buffer shaft sleeve 101, so that the first threaded connection member 107 is screwed with the inner wall of the buffer shaft sleeve 101.

First threaded connection 107 is provided with first connecting hole, and first threaded connection 107 is run through along the axial of first threaded connection 107 in first connecting hole, and through the installation of second threaded connection 204 that runs through first connecting hole with the front end of pivot 201 and first threaded connection 107, second threaded connection 204 is provided with the external screw thread, and the front end of pivot 201 is provided with the screw hole. In particular, the second threaded connection 204 is provided as a bolt or screw.

Referring to the drawings, the second threaded connector 204 extends through the first connection hole from the front end of the first threaded connector 107, the second threaded connector 204 is connected with the threaded hole at the front end of the rotating shaft 201, the head of the second threaded connector 204 abuts against the front end of the first threaded connector 107, and the rotating shaft 201, the first threaded connector 107 and the buffer shaft sleeve 101 are installed by locking the second threaded connector 204.

Further, the impeller includes a locking ring 108, the locking ring 108 having a tapered bore extending through the locking ring 108 from the front end to the rear end of the locking ring 108, the major diameter end of the tapered bore being located at the rear end of the locking ring 108. With reference to the drawings, the side wall of the front end of the rotating shaft 201 is provided with a tapered side wall, the front end of the rotating shaft 201 is inserted into the locking ring 108, and the outer wall of the locking ring 108 contacts with the inner wall of the buffer shaft sleeve 101. Specifically, in the process of locking the second threaded connector 204, the tapered side wall of the front end of the rotating shaft 201 is gradually and fixedly pressed against the inner wall of the tapered hole of the locking ring 108, and the locking ring 108 plays a role of fixed connection between the side wall of the front end of the rotating shaft 201 and the inner wall of the sleeve of the buffer shaft sleeve 101.

Further, the side wall of the locking ring 108 is provided with an axial notch extending from the front end to the rear end of said locking ring 108. It can be understood that during the process of screwing the second threaded connector 204, the locking ring 108 is gradually tightened in the circumferential direction, and the axial gap is gradually narrowed until the second threaded connector 204, the locking ring 108, the front end of the rotating shaft 201, the first threaded connector 107 and the buffer shaft sleeve 101 are fixedly connected.

With reference to the drawings, the impeller includes a buffer shaft inner sleeve 102, the buffer shaft inner sleeve 102 is disposed in a shaft sleeve of the impeller body 100, and an outer wall of the buffer shaft inner sleeve 102 is in interference fit with an inner wall of the shaft sleeve of the impeller body 100, so that the buffer shaft sleeve is fixedly connected with the impeller body 100. The buffer shaft sleeve 101 penetrates through the buffer shaft inner sleeve 102, and the buffer shaft sleeve 101 is in transmission connection by clamping the buffer shaft inner sleeve 102 in the rotating process.

Specifically, the outer side wall of the buffer shaft sleeve 101 is provided with a first protruding structure 104, and the first protruding structure 104 of the buffer shaft sleeve 101 drives the impeller body 100 to rotate through the buffer shaft inner sleeve 102. Referring to the drawings, the first protrusion structure 104 is formed around the outer side wall of the buffer shaft sleeve 101 as a boss having a corner structure, and the corner structure formed by the first protrusion structure 104 is used for abutting against the inner wall of the buffer shaft sleeve 102.

It can be understood that the buffer shaft inner sleeve 102 is provided with a clamping hole, the clamping hole penetrates through the buffer shaft inner sleeve 102 along the axial direction of the buffer shaft inner sleeve 102, and under the condition that the buffer shaft sleeve 101 rotates, the first convex structure 104 of the buffer shaft sleeve 101 abuts against the inner wall of the clamping hole, so that the buffer shaft sleeve 101 is in transmission connection with the buffer shaft inner sleeve 102. Specifically, a corner structure is formed on the inner wall of the clamping hole, and the corner structure formed by the first protrusion structure 104 is matched with the corner structure of the clamping hole to be clamped, so that transmission between the buffer shaft sleeve 101 and the buffer shaft inner sleeve 102 is realized.

With reference to the drawings, the first protruding structures 104 are rectangular, and the corner structures formed by the first protruding structures 104 are rounded structures with arc-shaped transition.

Further, a gap is reserved between the inner wall of the designed clamping hole and the first protruding structure 104, so that a moving space is formed between the outer wall of the first protruding structure 104 and the inner wall of the buffer shaft inner sleeve 102, and the impeller can move under the condition that sundries are clamped between the cutter platform 202 and the impeller, so that the impeller is prevented from being clamped.

For improving impeller, water pump ability of shocking resistance, avoid debris to block up, the dead impeller of card, avoid the structure of water pump, impeller impaired, improve cutting effect, the design impeller includes buffering elastic component 103, and buffering elastic component 103 sets up in buffering axle endotheca 102, and buffering axle sleeve 101 runs through buffering elastic component 103, and buffering elastic component 103 has compression deformation ability, specifically, buffering elastic component 103 sets up to compression spring.

It can be understood that when the sundries block the space between the impeller and the knife platform 202, the sundries push against the impeller, the impeller can move towards the rear end along the rotating shaft 201, and after the sundries are cleaned or cut up, the impeller can move towards the front end along the rotating shaft 201 to reset under the elastic action of the buffering elastic piece 103.

With reference to the accompanying drawings, a first hole shoulder facing the rear end of the impeller body 100 is arranged on a shaft sleeve of the impeller body 100, the buffering elastic member 103 is located in an annular cavity formed by the first hole shoulder, the front end side face of the first protruding structure 104, the inner side face of the buffering shaft inner sleeve 102 and the outer side face of the buffering shaft sleeve 101, in the process that sundries push the impeller to move backwards, the buffering elastic member 103 is compressed, one end of the buffering elastic member 103 is used for pushing against the first hole shoulder, and the other end of the buffering elastic member 103 is used for pushing against the first protruding structure 104, so that elastic connection between the impeller and the rotating shaft 201 is achieved.

In the case that the impeller is squeezed by impurities to move backwards, the buffer shaft sleeve 101 is axially fixed on the rotating shaft 201, so that the front end side face of the first protruding structure 104 on the buffer shaft sleeve 101 can provide support for the buffer elastic piece 103.

Further, the impeller includes buffering axle overcoat 105, and buffering axle overcoat 105 sets up in the axle sleeve of impeller body 100, and the lateral surface of buffering axle overcoat 105 and the medial surface interference fit of buffering axle sleeve 101 to make buffering axle overcoat 105 and buffering axle sleeve 101 fixed connection, buffering axle sleeve 101 runs through buffering axle overcoat 105. With reference to the drawings, a third hole shoulder is formed on the inner side surface of the buffer shaft sleeve 101 near the rear end, the buffer shaft outer sleeve 105 is located in an area formed by the third hole shoulder in the buffer shaft sleeve 101, and the buffer shaft outer sleeve 105 abuts against the rear end of the buffer shaft inner sleeve 102, so that the buffer shaft inner sleeve 102 is prevented from being separated from the impeller body 100, and the stability of the impeller structure assembly is improved.

With reference to the drawings, the impeller includes a rubber sleeve 106, the rubber sleeve 106 is disposed in the buffer shaft sleeve 105, the buffer shaft sleeve 101 penetrates through the rubber sleeve 106, and the rubber sleeve 106 fills a gap between the buffer shaft sleeve 105 and the buffer shaft sleeve 101, so as to improve the stability of the impeller structure.

In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

In the description of the present invention, the appearances of the patent names "and" in the patent specification are the same as each other, but the patent names "and" are not necessarily the same as each other. For example, the patent names "a and B" illustrate that the claimed invention is: the technical scheme with the subject name of A and the technical scheme with the subject name of B.

Claims

1. A water pump, characterized by: the impeller comprises an impeller, a pump body and a knife platform (202), wherein the knife platform (202) is positioned at the front end of the impeller, the pump body is provided with a rotating shaft (201), and the impeller comprises a rotating shaft

The impeller comprises an impeller body (100), wherein the front end of the impeller body (100) is provided with a blade, and the blade is provided with a blade edge;

the buffering shaft sleeve (101), the buffering shaft sleeve (101) is inserted into a shaft sleeve of the impeller body (100), the rotating shaft (201) is inserted into the buffering shaft sleeve (101), the rotating shaft (201) is in transmission connection with the buffering shaft sleeve (101), and a first protruding structure (104) is arranged on the outer side wall of the buffering shaft sleeve (101);

the buffering shaft inner sleeve (102), the buffering shaft inner sleeve (102) is arranged in a shaft sleeve of the impeller body (100), the buffering shaft sleeve (101) penetrates through the buffering shaft inner sleeve (102), and the first protruding structure (104) of the buffering shaft sleeve (101) drives the impeller body (100) to rotate through the buffering shaft inner sleeve (102);

the buffering elastic part (103), the buffering elastic part (103) is arranged in the buffering shaft inner sleeve (102), and the buffering shaft sleeve (101) penetrates through the buffering elastic part (103);

the impeller comprises an impeller body (100), and is characterized in that a first hole shoulder facing the rear end of the impeller body (100) is arranged on a shaft sleeve of the impeller body (100), one end of a buffering elastic piece (103) is used for abutting against the first hole shoulder, and the other end of the buffering elastic piece (103) is used for abutting against a first protruding structure (104).

2. The water pump of claim 1, wherein: the impeller comprises a buffering shaft outer sleeve (105), the buffering shaft outer sleeve (105) is arranged in a shaft sleeve of the impeller body (100), the buffering shaft sleeve (101) penetrates through the buffering shaft outer sleeve (105), and the buffering shaft outer sleeve (105) abuts against the rear end of the buffering shaft inner sleeve (102).

3. The water pump of claim 2, wherein: the impeller comprises a rubber sleeve (106), the rubber sleeve (106) is arranged in the buffering shaft outer sleeve (105), and the buffering shaft sleeve (101) penetrates through the rubber sleeve (106).

4. The water pump of claim 1, wherein: the impeller includes first threaded connection spare (107), first threaded connection spare (107) are provided with the external screw thread, buffering axle sleeve (101) are provided with the internal thread, first threaded connection spare (107) with buffering axle sleeve (101) threaded connection, first threaded connection spare (107) be used for with pivot (201) are connected.

5. The water pump of claim 4, wherein: first threaded connection spare (107) is provided with first connecting hole, first connecting hole is followed the axial of first threaded connection spare (107) is run through first threaded connection spare (107), through running through second threaded connection spare (204) of first connecting hole will the front end of pivot (201) with first threaded connection spare (107) installation, the front end of pivot (201) is provided with the connection the screw hole of second threaded connection spare (204).

6. The water pump of claim 5, wherein: the impeller comprises a locking ring (108), an axial notch is formed in the side wall of the locking ring (108), the axial notch extends from the front end to the rear end of the locking ring (108), the locking ring (108) is provided with a tapered hole, the tapered hole penetrates through the locking ring (108), the large-diameter end of the tapered hole is located at the rear end of the locking ring (108), the side wall of the front end of the rotating shaft (201) is provided with a tapered side wall, the front end of the rotating shaft (201) is connected with the locking ring (108) in an inserted mode, and the outer wall of the locking ring (108) is in contact with the inner wall of the buffering shaft sleeve (101).

7. The water pump of claim 1, wherein: the buffer shaft inner sleeve (102) is provided with a clamping hole, and the clamping hole penetrates through the buffer shaft inner sleeve (102) along the axial direction of the buffer shaft inner sleeve (102); under the condition that the buffering shaft sleeve (101) rotates, the first protruding structure (104) of the buffering shaft sleeve (101) abuts against the inner wall of the clamping hole, so that the buffering shaft sleeve (101) is in transmission connection with the buffering shaft inner sleeve (102).

8. The water pump of claim 7, wherein: a gap is reserved between the inner wall of the clamping hole and the first protruding structure (104).

9. The water pump of claim 1, wherein: the rear side of the knife rest (202) is provided with a sewage discharge groove (203), and two ends of the sewage discharge groove (203) respectively extend to the inner wall and the outer wall of the knife rest (202) to form two ports.

10. The water pump of claim 9, wherein: the sewage draining groove (203) is arranged on the rear side of the cutter platform (202) along the spiral track of the blade.