CN215058226U - Clean miniature water pump - Google Patents

Abstract

The utility model provides a clean micro water pump, which comprises a motor, a main shaft, a front shell, a rear shell, a forming water blade and a water-proof pressing sheet, wherein one end of the water-proof pressing sheet is provided with a sealing component, and a plurality of screw parts positioned in the inner cavity of the water-proof pressing sheet are hermetically arranged in the sealing component; utilize the outside one end fixed mounting that extends of boss to go up the outward flange all around in shaft hole in the shell in the front, the marginal fixed mounting of water proof preforming is in the front on the shell terminal surface simultaneously for the screw position seal installation that is arranged in the water proof preforming is in the enclosure space that water proof preforming inner wall and boss outer wall formed, thereby makes the screw position that is arranged in the water proof preforming inner chamber unable and water source contact, has just also avoided harmful substance's production.

Description

Clean miniature water pump

Technical Field

The utility model relates to a water pump product technical field, concretely relates to clean miniature water pump.

Background

The machines for pumping liquid by lifting liquid, conveying liquid or increasing pressure of liquid, that is, changing the mechanical energy of prime mover into liquid energy, are generally called water pumps, which generally comprise a driving part and a pump body, wherein the pump body is provided with an inlet and an outlet, water enters from the inlet and exits from the outlet, and the miniature water pumps are small and pocket water pumps.

An authorization publication No. CN212407057U, the patent name is "an environmental protection micro water pump of leak protection water", it has reduced the use of magnet and magnetic ring through installing the shaping hydrofoil on the main shaft of the electrical machinery directly, avoid the water source pollution brought by wearing and tearing, avoid the human body to suck the heavy metal, because the main shaft drives directly at the same time, reduce the transmission consumption, reduce the power consumption, energy-conservation; but because the front shell and the motor are fixedly installed by adopting screws, in the working process of the water pump, external moisture can enter the inner cavity of the waterproof pressing sheet, so that the screws are in contact with water, the screws can release harmful substances after being soaked in the water for a long time, and the human health can be injured after long-term use of the water source.

Disclosure of Invention

To the defect that exists among the prior art, the utility model aims to provide a clean miniature water pump, this water pump can avoid being arranged in the screw position of water proof preforming inner chamber and contact with the water source, guarantees the safe reference nature at water source.

The embodiment of the application provides a clean miniature water pump, the water pump includes motor, main shaft, preceding shell, backshell, shaping water leaf and water proof preforming, the motor links to each other through a plurality of screw fixation that are provided with preceding shell, the terminal surface of preceding shell is provided with the shaft hole, the water proof preforming be provided with main shaft complex centre bore, the one end of water proof preforming is provided with seal assembly, is located a plurality of in the water proof preforming inner chamber screw position seal installation is in the seal assembly.

Furthermore, the sealing assembly comprises a boss with one end extending outwards through the water-stop sheet, the center hole is formed in the boss, one end of the boss extending outwards is fixedly installed at the peripheral outer edge of the shaft hole, the water-stop sheet is fixedly installed on the end face of the front shell, and a plurality of screw parts in the inner cavity of the water-stop sheet are hermetically installed in a closed space formed by the inner wall of the water-stop sheet and the outer wall of the boss.

Furthermore, the sealing assembly comprises a plurality of screw posts which are arranged at one end of the waterproof pressing sheet and correspond to and extend outwards in a matched mode with a plurality of screws, each screw post is of a hollow structure with an opening at one end, one end of each screw post with an opening is fixedly installed on the end face of the front shell, and the screw part in the inner cavity of the waterproof pressing sheet is accommodated in the inner cavity of the screw post.

Further, the boss is of a cylindrical boss structure.

Further, the boss and the waterproof pressing sheet are fixedly installed through ultrasonic welding respectively.

Furthermore, the open-ended one end of screw post passes through ultrasonic fixed welding on the front shell terminal surface.

The utility model has the advantages that:

1. the clean micro water pump in the embodiment of the application utilizes the outward extending end of the boss to be fixedly arranged on the peripheral outer edge of the shaft hole on the front shell through the arranged boss, and simultaneously, the edge of the water-proof pressing sheet is fixedly arranged on the end surface of the front shell, so that the screw part in the water-proof pressing sheet is hermetically arranged in the closed space formed by the inner wall of the water-proof pressing sheet and the outer wall of the boss, the screw part in the inner cavity of the water-proof pressing sheet can not be contacted with a water source, and the generation of harmful substances is avoided;

2. through being provided with a plurality of screw posts, the screw position that the screw post can further be located in the water proof preforming inner chamber is sealed, further avoids the contact of screw and water source, prevents harmful substance's production effectively.

Drawings

Fig. 1 is a schematic view illustrating an assembled and disassembled structure of a clean micro-pump according to an embodiment of the present disclosure.

Fig. 2 is a schematic view illustrating an assembled and disassembled structure of a clean micro-pump at another angle according to an embodiment of the present disclosure.

Fig. 3 is a schematic view illustrating an assembled and disassembled structure of a clean micro-pump according to a second embodiment of the present application.

Fig. 4 is a schematic view illustrating an assembled and disassembled structure of a clean micro-pump according to a third embodiment of the present application.

In the figure:

1-motor, 2-front shell, 3-screw, 4-water-proof tablet, 5-forming water blade, 6-rear shell, 11-main shaft, 21-shaft hole, 22-end face, 41-center hole, 42-boss and 43-screw column.

Detailed Description

The present invention will be described in further detail with reference to the drawings and the following detailed description.

Example one

Referring to fig. 1 to 2, fig. 1 is a schematic view illustrating an assembly and disassembly structure of a clean micro-water pump according to a first embodiment of the present disclosure; fig. 2 is a schematic view illustrating an assembly and disassembly structure of a clean micro-pump at another angle according to an embodiment of the present application. The embodiment of the application provides a clean miniature water pump, including motor 1, main shaft 11, preceding shell 2, backshell 6, shaping water leaf 5, water proof preforming 4. The motor 1 is fixedly connected with the front shell 2 through a plurality of screws 3, a shaft hole 21 is formed in the end face 22 of the front shell 2, and the water-stop pressing sheet 4 is provided with a center hole 41 matched with the spindle 11. One end of the water stop sheet 4 is provided with a sealing assembly, and the positions of the screws 3 in the inner cavity of the water stop sheet 4 are hermetically arranged in the sealing assembly.

In the first embodiment of the present application, the sealing assembly includes a boss 42 (for example, the boss 42 may adopt a cylindrical shape structure, and certainly, other shape structures may also be adopted, without limitation) provided to extend outward through a center portion of one end of the water stop sheet 4, the center hole 41 is provided in a middle portion of the boss 42, one end of the boss 42 extending outward is fixedly installed on an outer edge of the periphery of the shaft hole 21, that is, the outer dimension of the boss 42 is greater than the outer dimension of the shaft hole 21, so that when the boss 42 is installed, the periphery of the shaft hole 21 can be sealed. The water stop sheet 4 is fixedly installed on the front shell end face 22, and the plurality of screw 3 positions in the inner cavity of the water stop sheet 4 are hermetically installed in a closed space formed by the inner wall of the water stop sheet 4 and the outer wall of the boss 42.

Clean micro-water pump in the embodiment of the application is through the boss 42 that is provided with, utilize boss 42 outside extending one end fixed mounting in the preceding shell 2 go up the outward flange all around of shaft hole 21, simultaneously the marginal fixed mounting of water proof preforming 4 is in the front on shell end face 22, make 3 position seal installations of screw that are arranged in water proof preforming 4 in the enclosure space of water proof preforming 4 inner wall and 42 outer wall formation of boss, thereby make 3 positions of screw that are arranged in the 4 inner chambers of water proof preforming unable and contact with the water source, just also avoided harmful substance's production.

In some embodiments of the present application, the boss 42 is preferably fixed to the peripheral outer edge of the shaft hole 21 by ultrasonic welding, and the water stop sheet 4 is preferably fixed to the front shell end surface 22 by ultrasonic welding; it is understood that the fixing manner of the boss 42 and the water stop sheet 4 may be other manners, and only the sealing property needs to be ensured.

Example two

Referring to fig. 3, fig. 3 is a schematic view illustrating an assembly and disassembly structure of a clean micro-water pump according to a second embodiment of the present application. The second embodiment of the present application is different from the first embodiment of the present application only in that the sealing assembly in the second embodiment of the present application is different from the sealing assembly in the first embodiment of the present application in structure.

The sealing assembly in this application embodiment two includes that the one end through water proof pressure piece 4 is provided with and corresponds and cooperate a plurality of screw posts 43 that outwards extend with a plurality of screws 3, and each screw post 43 is one end open-ended hollow structure, and on the preceding shell end face 22 of open-ended one end fixed mounting of each screw post 43, the 3 positions of screw that are arranged in the 4 inner chambers of water proof pressure piece hold in the inner chamber of screw post 43. Through being provided with screw post 43 for hollow structure, screw 3 holds in the inner chamber of screw post 43, can be so that lie in screw 3 and possess sealed effect. In other embodiments of the present application, the open end of the screw stud 43 is welded to the front housing end surface 22 by ultrasonic fixing, but other sealing installation forms can be adopted, and the invention is not limited thereto.

EXAMPLE III

Referring to fig. 4, fig. 4 is a schematic view illustrating an assembly and disassembly structure of a clean micro-pump according to a third embodiment of the present application. The third embodiment of the present application is different from the first and second embodiments in that the seal assembly in the third embodiment of the present application includes the specific seal assembly structure in the first and second embodiments.

In order to further ensure the sealing performance of the screw 3 in the water stop sheet 4, one end of the water stop sheet 4 in the embodiment of the present application includes not only the boss 42 in the first embodiment, but also the plurality of screw posts 43 in the second embodiment, and the periphery of the boss 42 where the plurality of screw posts 43 are arranged. The seal assembly in this application embodiment three can be so that be located screw 3 and possess the dual seal effect, and the sealed space that constitutes through boss 42 and water proof pressure piece 4 promptly has arranged screw post 43 again in this sealed space simultaneously again, utilizes the inner chamber of screw post 43 to form sealed once more to screw 3.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalent technologies, the present invention is also intended to include such modifications and variations.

Claims (6)

1. The utility model provides a clean miniature water pump, the water pump includes motor, main shaft, preceding shell, backshell, takes shape water leaf and water proof preforming, the motor links to each other through a plurality of screw fixation that are provided with preceding shell, the terminal surface of preceding shell is provided with the shaft hole, the water proof preforming be provided with main shaft complex centre bore, its characterized in that, the one end of water proof preforming is provided with seal assembly, is located a plurality of in the water proof preforming inner chamber screw position seal installation in seal assembly.

2. The water pump according to claim 1, wherein the sealing assembly includes a boss extending outward through one end of the water stop sheet, the central hole is formed in the boss, one end of the boss extending outward is fixedly mounted on the peripheral outer edge of the shaft hole, the water stop sheet is fixedly mounted on the front housing end face, and a plurality of screw portions located in an inner cavity of the water stop sheet are sealingly mounted in a closed space formed by an inner wall of the water stop sheet and an outer wall of the boss.

3. The water pump according to claim 1 or 2, wherein the sealing assembly includes a plurality of screw posts extending outward and correspondingly engaged with the plurality of screws through one end of the water stop sheet, each screw post is a hollow structure with an open end, the open end of each screw post is fixedly mounted on the end surface of the front housing, and a screw portion located in an inner cavity of the water stop sheet is accommodated in an inner cavity of the screw post.

4. The water pump of claim 2, wherein the boss is a cylindrical boss structure.

5. The water pump of claim 2, wherein the boss and the water stop sheet are fixedly mounted by ultrasonic welding, respectively.

6. The water pump of claim 3, wherein one end of the screw post opening is fixedly welded to the front case end surface by ultrasonic waves.

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