CN217401117U

CN217401117U - Combined pump with check valve on inlet filter screen

Info

Publication number: CN217401117U
Application number: CN202220357741.5U
Authority: CN
Inventors: 王中全
Original assignee: Wenzhou Supertech Machine Co ltd
Current assignee: Wenzhou Supertech Machine Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-09-09
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses an import filter screen has combination pump of check valve, including the pump body, valve body, a lateral wall of the pump body is provided with the export by the rear side, the inside of export is provided with the nozzle, the one end fixed connection of nozzle is on the inside wall of export, be provided with first spring on the lateral wall of nozzle, the one end fixed connection of first spring is on a lateral wall of nozzle, the inside of the pump body of export one side is provided with first cavity, is located the inside of the pump body of first cavity one side is provided with the second cavity, the second cavity is provided with the through-hole with the junction of first cavity, the lateral wall fixed connection of valve body is on the inside wall of second cavity, the passageway runs through the lateral wall of valve body. The utility model discloses a set up the check valve in the inside of import, effectually avoided causing the phenomenon of liquid backward flow when the pump body is closed, improved the security of using.

Description

Combined pump with check valve on inlet filter screen

Technical Field

The utility model relates to a pump field especially relates to a combination pump that import filter screen has check valve.

Background

A pump is a machine that delivers or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solid. Pumps can be generally classified by their operating principle into three types, positive displacement pumps, dynamic pumps and other types of pumps.

The prior patent (publication number: CN204628016U) discloses a combination pump, which comprises a motor and a pump body, wherein the pump body comprises a water inlet joint and a multi-stage impeller pump group, one end of the water inlet joint is fixedly connected with the multi-stage impeller pump group, the other end of the water inlet joint is fixedly connected with the motor, the motor comprises a motor I and a motor II, the pump body comprises a pump I and a pump II, the motor I and the pump I form the pump I, the motor II and the pump II form the pump II, the water outlet end of the pump I is connected with one end of an extension pipe connector, the other end of the extension pipe connector is connected with one end of a sealing sleeve, the other end of the sealing sleeve is hermetically connected with the pump II, the connecting position is positioned at one end of the water inlet joint of the pump II, which is fixedly connected with the multi-stage impeller pump group, and the water inlet joint of the pump II and the motor are positioned in the sealing sleeve. The utility model discloses a still have some shortcomings in the use, the structure of this combination pump is too complicated, can not carry out the non return to inside rivers when equipment stops to use, leads to the liquid of taking out to be sucked back again by the combination pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a combined pump with an inlet filter screen provided with a check valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a combination pump with an inlet filter screen provided with a check valve comprises a pump body and a valve body, wherein an outlet is arranged on one side wall of the pump body close to the rear side, a nozzle is arranged in the outlet, one end of the nozzle is fixedly connected to the inner side wall of the outlet, a first spring is arranged on the outer side wall of the nozzle, one end of the first spring is fixedly connected to one side wall of the nozzle, a first cavity is arranged in the pump body on one side of the outlet, a second cavity is arranged in the pump body on one side of the first cavity, a through hole is formed at the joint of the second cavity and the first cavity, the side wall of the valve body is fixedly connected to the inner side wall of the second cavity, a channel is arranged at the center of the front side wall of the valve body, the channel penetrates through the side wall of the valve body, a fixed block is fixedly connected to the center of the front inner side wall of the channel, and a second spring is arranged at the center of the front side wall of the valve body, the rear end fixed connection of second spring is on the preceding lateral wall of valve body, the center department of second spring is provided with the dead lever, the rear end of dead lever runs through the preceding lateral wall and the fixed block of valve body, and tip fixedly connected with valve plate, be provided with sealed the pad on the preceding lateral wall of valve plate, the front end of dead lever is provided with the fixed pin, the one end of fixed pin runs through the dead lever.

As a further description of the above technical solution:

the valve body is provided with the annular on being close to the lateral wall of front side, the inside cover of annular is equipped with the sealing washer, the shape of sealing washer is the O type.

As a further description of the above technical solution:

the rear end of the fixed rod is fixedly connected to the center of the front side wall of the valve plate through a fixed nut.

As a further description of the above technical solution:

an inlet is formed in one side wall far away from the outlet of the pump body, and the inlet and the second cavity are in an intercommunicating state.

As a further description of the above technical solution:

all be provided with the filter screen on the lateral wall of export and import, just the filter screen adopts the steel wire to make.

As a further description of the above technical solution:

and the inner side wall of the outlet is provided with internal threads.

As a further description of the above technical solution:

the shape of the sealing gasket is circular ring-shaped, and the sealing gasket is made of rubber.

As a further description of the above technical solution:

the sealing gasket is fixedly connected to the front side wall of the valve plate through a fixing nut.

As a further description of the above technical solution:

the side wall of the pump body at the rear side of the inlet is provided with an observation port, and the observation port penetrates through the side wall of the pump body.

The utility model discloses following beneficial effect has:

the utility model discloses with the current contrast that sets up, be provided with the check valve through the import at the pump body, this check valve is closed under the effect of pressure after closing the pump, and the liquid of pump chamber just can not be poured back to and has been taken out the container, has improved the usability.

The utility model discloses with the current contrast that sets up, through set up the internal thread on the inside wall of export, conveniently connect the pipeline of discharging usefulness, it is all more convenient to make the installation with the dismantlement, leakproofness when improving the connection simultaneously.

Drawings

Fig. 1 is a modified cross-sectional view of a combination pump with a check valve in an inlet strainer according to the present invention;

FIG. 2 is a modified cross-sectional top view of a combination pump with a check valve in an inlet strainer, in accordance with the present invention;

fig. 3 is the utility model provides a sectional view that crouches down of valve body of a combination pump that import filter screen has check valve.

Illustration of the drawings:

1. a pump body; 2. an outlet; 3. an internal thread; 4. a nozzle; 5. a first spring; 6. a first cavity; 7. a through hole; 8. a second cavity; 9. a viewing port; 10. a valve body; 11. an inlet; 12. fixing the rod; 13. a fixing pin; 14. a ring groove; 15. a seal ring; 16. fixing a nut; 17. a valve plate; 18. a gasket; 19. filtering with a screen; 20. a second spring; 21. a fixed block; 22. a channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a combination pump with an inlet filter screen provided with a check valve comprises a pump body 1 and a valve body 10, wherein an outlet 2 is arranged on one side wall of the pump body 1 close to the rear side, inner side walls of the outlet 2 are provided with internal threads 3, a pipeline for discharging is convenient to connect, the combination pump is convenient to install and disassemble, meanwhile, the sealing performance during connection is improved, a nozzle 4 is arranged inside the outlet 2, one end of the nozzle 4 is fixedly connected to the inner side walls of the outlet 2, a first spring 5 is arranged on the outer side wall of the nozzle 4, one end of the first spring 5 is fixedly connected to one side wall of the nozzle 4, a first cavity 6 is arranged inside the pump body 1 on one side of the outlet 2, a second cavity 8 is arranged inside the pump body 1 on one side of the first cavity 6, a through hole 7 is arranged at the joint of the second cavity 8 and the first cavity 6, the side wall of the valve body 10 is fixedly connected to the inner side wall of the second cavity 8, a channel 22 is arranged at the center of the front side wall of the valve body 10, the passageway 22 runs through the lateral wall of valve body 10, the preceding inside wall center fixedly connected with fixed block 21 of passageway 22, the preceding lateral wall center department of valve body 10 is provided with second spring 20, the rear end fixed connection of second spring 20 is on the preceding lateral wall of valve body 10, the center department of second spring 20 is provided with dead lever 12, the rear end of dead lever 12 runs through the preceding lateral wall and the fixed block 21 of valve body 10, and tip fixedly connected with valve plate 17, be provided with sealed the pad 18 on the preceding lateral wall of valve plate 17, the rear end of dead lever 12 passes through fixation nut 16 fixed connection in the preceding lateral wall center department of valve plate 17, the front end of dead lever 12 is provided with fixed pin 13, the one end of fixed pin 13 runs through dead lever 12, fixed pin 13 plays and fixes the position of second spring 20, make it keep compression state always.

The check valve comprises a valve body 10, an annular groove 14 is formed in the outer side wall, close to the front side, of the valve body 10, a sealing ring 15 is sleeved inside the annular groove 14, the sealing ring 15 is O-shaped, an inlet 11 is formed in one side wall, far away from an outlet 2 of the pump body 1, of the side wall, the inlet 11 and the second cavity 8 are in an intercommunicating state, filter screens 19 are arranged on the side walls of the outlet 2 and the inlet 11 respectively, the filter screens 19 are made of steel wires, a sealing gasket 18 is circular and made of rubber, the sealing gasket 18 is fixedly connected to the front side wall of a valve plate 17 through a fixing nut 16, an observation port 9 is formed in the side wall of the pump body 1 behind the inlet 11, and the observation port 9 penetrates through the side wall of the pump body 1.

The working principle is as follows: the utility model relates to an import filter screen has combination pump of check valve, liquid enters into the inside of the pump body 1 through import 11 during the use, because the pressure that liquid flows pushes back sealed 18 surplus valve plates 17, liquid flows along the passageway 22 on the lateral wall before the valve body 10, then along with through-hole 7 through first cavity 6 through export 2 outflow, because inside pressure is great when stopping the pump body 1, the valve plate 17 of valve body 10 rear end and sealed 18 of filling up pull to the front side under the elastic action of the second spring 20 of dead lever 12 rear side this moment, make the inside passageway 22 of valve body 10 close, avoid liquid reflux.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an import filter screen has combination pump of check valve, includes the pump body (1), valve body (10), its characterized in that: an outlet (2) is arranged on the rear side of one side wall of the pump body (1), a nozzle (4) is arranged inside the outlet (2), one end of the nozzle (4) is fixedly connected to the inner side wall of the outlet (2), a first spring (5) is arranged on the outer side wall of the nozzle (4), one end of the first spring (5) is fixedly connected to one side wall of the nozzle (4), a first cavity (6) is arranged inside the pump body (1) on one side of the outlet (2), a second cavity (8) is arranged inside the pump body (1) on one side of the first cavity (6), a through hole (7) is formed in the joint of the second cavity (8) and the first cavity (6), the side wall of the valve body (10) is fixedly connected to the inner side wall of the second cavity (8), a channel (22) is arranged in the center of the front side wall of the valve body (10), the utility model discloses a valve plate, including passageway (22), preceding inside wall center department fixedly connected with fixed block (21) of passageway (22), the preceding lateral wall center department of valve body (10) is provided with second spring (20), the rear end fixed connection of second spring (20) is on the preceding lateral wall of valve body (10), the center department of second spring (20) is provided with dead lever (12), the rear end of dead lever (12) runs through preceding lateral wall and fixed block (21) of valve body (10), and tip fixedly connected with valve plate (17), be provided with sealed pad (18) on the preceding lateral wall of valve plate (17), the front end of dead lever (12) is provided with fixed pin (13), the one end of fixed pin (13) runs through fixed lever (12).

2. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: valve body (10) are provided with annular (14) on leaning on the lateral wall of front side, the inside cover of annular (14) is equipped with sealing washer (15), the shape of sealing washer (15) is the O type.

3. The combination pump of claim 1 having an inlet screen with a check valve, wherein: the rear end of the fixing rod (12) is fixedly connected to the center of the front side wall of the valve plate (17) through a fixing nut (16).

4. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: an inlet (11) is arranged on one side wall far away from the outlet (2) of the pump body (1), and the inlet (11) and the second cavity (8) are in a communicated state.

5. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: all be provided with filter screen (19) on the lateral wall of export (2) and import (11), just filter screen (19) adopt the steel wire to make.

6. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: and an internal thread (3) is arranged on the inner side wall of the outlet (2).

7. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: the shape of the sealing gasket (18) is circular ring-shaped, and the material is rubber.

8. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: the sealing gasket (18) is fixedly connected to the front side wall of the valve plate (17) through a fixing nut (16).

9. The pump of claim 1, wherein the inlet screen comprises a check valve, wherein: an observation port (9) is arranged on the side wall of the pump body (1) at the rear side of the inlet (11), and the observation port (9) penetrates through the side wall of the pump body (1).