CN219452484U

CN219452484U - Chemical pump

Info

Publication number: CN219452484U
Application number: CN202320806162.9U
Authority: CN
Inventors: 禹资荣; 易海波
Original assignee: Dongguan Jiekai Industrial Equipment Co ltd
Current assignee: Dongguan Jiekai Industrial Equipment Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-08-01
Anticipated expiration: 2033-04-12

Abstract

The utility model relates to the technical field of chemical pumps, and discloses a chemical pump which comprises a motor, wherein an output end of the motor is provided with an output shaft; a pump body connected to the motor; an impeller cover connected to the pump body; the impeller is arranged in the impeller cover and is connected with the tail end of the output shaft; the surface of the output shaft is provided with a film, and the film is a teflon film. The utility model provides a teflon film arranged on the surface of an output shaft, which belongs to an oily film, and corrosive liquid automatically slides down under the action of gravity and cannot adhere to the output shaft, so that the corrosive liquid is prevented from crystallizing on the output shaft.

Description

Chemical pump

Technical Field

The utility model relates to the technical field of chemical pumps, in particular to a chemical pump.

Background

The chemical pump mainly designates an etching pump or an acid-base chemical liquid conveying pump, chemical liquid flows behind the pump in a high-pressure pump cavity, liquid residues are caused, when the pump stops operating, the liquid residues in the pump cavity cannot flow back and can be remained on an output shaft of a motor, crystallization is easy, once the crystallization can increase the burden of the output shaft, meanwhile, the motor is started again after the crystallization, and a crystallized substance can rub with the output shaft under high-speed rotation to influence the service life of the motor.

Disclosure of Invention

Based on the above, the utility model aims at a chemical pump, and the corrosive liquid on the output shaft can automatically flow back under the gravity, so that the corrosive liquid is prevented from crystallizing on the output shaft.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a chemical pump, comprising:

the output end of the motor is provided with an output shaft;

a pump body connected to the motor;

an impeller cover connected to the pump body;

an impeller arranged in the impeller cover and connected with the tail end of the output shaft,

the surface of the output shaft is provided with a film, and the film is a teflon film.

Preferably, the pump further comprises a motor mounting plate, wherein the motor is mounted on the motor mounting plate, and the top of the pump body is connected with the motor mounting plate.

Preferably, the connection position of the output shaft and the motor mounting plate is sleeved with a teflon sleeve, the teflon sleeve is arranged on a sleeve fixing seat, and the sleeve fixing seat is connected with the motor mounting plate.

Preferably, the top of axle sleeve fixing base is provided with the external screw thread, be provided with on the motor mounting panel with the internal screw thread of external screw thread looks adaptation.

Preferably, a water throwing ring is further sleeved on the output shaft, and the water throwing ring is arranged below the teflon shaft sleeve.

Preferably, the outer periphery of the bottom of the pump body is provided with external threads, the top of the impeller cover is provided with internal threads, and the pump body is in threaded connection with the impeller cover.

Preferably, the impeller cover comprises an impeller upper cover and an impeller lower cover, and the impeller upper cover and the impeller lower cover are in threaded connection.

Preferably, the impeller upper cover is provided with an outflow opening, the impeller lower cover is provided with an inflow opening, and the inflow opening is provided with a filter screen.

The beneficial effects of the utility model are as follows:

the utility model provides a teflon film arranged on the surface of an output shaft, which belongs to an oily film, and corrosive liquid automatically slides down under the action of gravity and cannot adhere to the output shaft, so that the corrosive liquid is prevented from crystallizing on the output shaft.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a chemical pump provided in some embodiments;

FIG. 2 is an exploded view of a chemical pump provided in some embodiments;

fig. 3 is a schematic cross-sectional structure of the pump body and motor connection location of fig. 1.

In the figure:

1. a motor; 2. a pump body; 3. an impeller cover; 31. an impeller upper cover; 32. an impeller lower cover; 321. a filter screen; 4. a motor mounting plate; 5. an output shaft; 51. a teflon film; 6. a teflon sleeve; 7. the shaft sleeve fixing seat; 8. a water throwing ring; 9. an impeller.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 to 3, in some embodiments there is provided a chemical pump comprising a motor 1, the output of which is provided with an output shaft 5; a pump body 2 connected to the motor 1; an impeller cover 3 connected to the pump body 2; the impeller 9 is disposed in the impeller cover 3 and connected to the end of the output shaft 5, and a film is disposed on the surface of the output shaft 5, and is a teflon film 51. Specifically, in the embodiment of the utility model, a layer of teflon film 51 is arranged on the surface of the output shaft 5, the teflon film 51 belongs to an oily film, under the action of gravity, corrosive liquid can automatically slide down and cannot adhere to the output shaft 5, so that the corrosive liquid is prevented from crystallizing on the output shaft 5, and the service life of a chemical pump is ensured.

Referring to fig. 1 to 3, in some embodiments, in order to fix the motor 1, a motor mounting plate 4 is further included, the motor 1 is mounted on the motor mounting plate 4, and the top of the pump body 2 is connected to the motor mounting plate 4. Specifically, the motor 1 is fixedly connected to the motor mounting plate 4 by screws, and the pump body 2 is preferably connected to the lower side of the motor mounting plate 4 by welding.

Referring to fig. 1 to 3, in some embodiments, in order to prevent corrosive liquid from penetrating into the motor 1, a connection position between the output shaft 5 and the motor mounting plate 4 is sleeved with a teflon sleeve 6, the teflon sleeve 6 is disposed on a sleeve fixing seat 7, and the sleeve fixing seat 7 is connected with the motor mounting plate 4. Preferably, the output shaft 5 is further sleeved with a water-throwing ring 8, and the water-throwing ring 8 is arranged below the teflon shaft sleeve 6. Specifically, in the embodiment of the utility model, through the water throwing ring 8, the shaft sleeve fixing seat 7 and the teflon shaft sleeve 6, the normal rotation of the output shaft 5 is ensured, and meanwhile, the penetration of corrosive liquid into the motor 1 can be effectively prevented.

Referring to fig. 2 and 3, in some embodiments, in order to facilitate the assembly and disassembly of the sleeve fixing seat 7, an external thread is provided on the top of the sleeve fixing seat 7, and an internal thread adapted to the external thread is provided on the motor mounting plate 4.

Referring to fig. 2 and 3, in some embodiments, in order to facilitate the installation and removal of the pump body 2 and the impeller cover 3, the outer circumference of the bottom of the pump body 2 is provided with external threads, the top of the impeller cover 3 is provided with internal threads, and the pump body 2 is screw-coupled to the impeller cover 3.

Referring to fig. 2 and 3, in some embodiments, for convenience in mounting the impeller 9 and in mounting and dismounting the impeller cover 3, the impeller cover 3 includes an impeller upper cover 31 and an impeller lower cover 32, and the impeller upper cover 31 and the impeller lower cover 32 are screw-coupled.

Referring to fig. 2 and 3, in some embodiments, in order for large particle impurities to be caught in the impeller 9, the impeller upper cover 31 is provided with an outflow port, and the impeller lower cover 32 is provided with an inflow port, and the inflow port is provided with a filter screen 321.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. A chemical pump, comprising:

the motor (1) is provided with an output shaft (5) at the output end;

a pump body (2) connected to the motor (1);

an impeller cover (3) connected to the pump body (2);

the impeller is arranged in the impeller cover (3) and is connected with the tail end of the output shaft (5);

the surface of the output shaft (5) is provided with a film, and the film is a teflon film (51).

2. A chemical pump according to claim 1, further comprising a motor mounting plate (4), wherein the motor (1) is mounted on the motor mounting plate (4), and wherein the top of the pump body (2) is connected to the motor mounting plate (4).

3. A chemical pump according to claim 2, characterized in that the connection position of the output shaft (5) and the motor mounting plate (4) is sleeved with a teflon sleeve (6), the teflon sleeve (6) is arranged on a sleeve fixing seat (7), and the sleeve fixing seat (7) is connected with the motor mounting plate (4).

4. A chemical pump according to claim 3, characterized in that the top of the shaft sleeve fixing seat (7) is provided with external threads, and the motor mounting plate (4) is provided with internal threads adapted to the external threads.

5. A chemical pump according to claim 3, characterized in that the output shaft (5) is further sleeved with a water-throwing ring (8), and the water-throwing ring (8) is arranged below the teflon shaft sleeve (6).

6. A chemical pump according to any one of claims 1 to 5, characterized in that the periphery of the bottom of the pump body (2) is provided with external threads, the top of the impeller cover (3) is provided with internal threads, and the pump body (2) is screwed to the impeller cover (3).

7. A chemical pump according to claim 1, characterized in that the impeller cover (3) comprises an impeller upper cover (31) and an impeller lower cover (32), the impeller upper cover (31) and the impeller lower cover (32) being screwed together.

8. A chemical pump according to claim 7, characterized in that the impeller upper cover (31) is provided with an outflow opening, the impeller lower cover (32) is provided with an inflow opening, and the inflow opening is provided with a filter screen (321).