CN114857023B

CN114857023B - Pressurized anti-countercurrent water pump

Info

Publication number: CN114857023B
Application number: CN202210451127.XA
Authority: CN
Inventors: 史瑞; 陈卓; 李长鹏
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2023-09-08
Anticipated expiration: 2042-04-26
Also published as: CN114857023A

Abstract

The invention relates to the field of water pumps, in particular to a pressurized anti-backflow water pump which comprises a water pump main body, an inlet and outlet mechanism, a pipe inlet, a pipe outlet, an anti-backflow mechanism, a mounting cylinder, a sealing plug, a sealing ring, a blocking rod, an inner frame, a limiting rod, a sliding block, an exhaust mechanism, an exhaust pipe, an air plug, a supporting rod, a connecting block, a first spring, an air guide rod, a floating ball and a filtering mechanism. According to the invention, after water enters the water inlet pipe, the bottom end of the blocking rod is extruded and pushed due to the impact force of water flow, at the moment, the blocking rod slides in the inner frame and is gradually lifted, at the moment, water flow flows into the water inlet pipe in the water pump main body from the opened notch and finally is discharged through the calandria, and after the water pump main body stops working, the blocking rod is not impacted by the water flow, the blocking rod falls mainly under the action of gravity and blocks the notch on the water inlet pipe again, so that the condition that water stored in the water pump main body flows back can be prevented when the water pump is used, and inconvenience in use is avoided.

Description

Pressurized anti-countercurrent water pump

Technical Field

The invention relates to the field of water pumps, in particular to a pressurized anti-backflow water pump.

Background

The water pump is a machine for transporting or pressurizing a liquid. It transmits mechanical energy or other external energy of prime mover to liquid to increase energy of liquid, and is mainly used for conveying liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion and liquid metal. Liquids, gas mixtures, and liquids containing suspended solids may also be delivered. Technical parameters of the water pump performance include flow, suction lift, shaft power, water power, efficiency and the like; according to different working principles, the water pump can be divided into a volumetric water pump, a vane pump and the like. The displacement pump uses the change of the volume of the working chamber to transfer energy; the vane pump is a type of centrifugal pump, axial flow pump, mixed flow pump, etc. that uses the interaction of rotary vanes with water to transfer energy.

During actual use, when the water pump stops working, part of water is stored in any cavity in the pump body, so that backflow can be possibly caused, and inconvenience is caused to use; in addition, when a liquid containing a large amount of gas is extracted, a large amount of bubbles are generated in the extraction process, and the gas is difficult to discharge in the water pump, so that a certain influence can be caused in the water pump.

Disclosure of Invention

The invention aims to solve the problems and provide a pressurized anti-reflux water pump which can prevent water stored in a cavity of a pump body from flowing back when in use, avoid inconvenience in use and can conveniently discharge gas in an extracting solution.

The invention realizes the aim through the following technical scheme that the pressurized anti-countercurrent water pump comprises a water pump main body, wherein inlet and outlet mechanisms are arranged at two sides of the water pump main body, the inlet and outlet mechanisms comprise a water inlet pipe and a water outlet pipe, one side of the water pump main body is connected with the water inlet pipe, the other side of the water pump main body is connected with the water outlet pipe, the top of the water inlet pipe is provided with an anti-countercurrent mechanism, the anti-countercurrent mechanism comprises a placement cylinder, a sealing plug, a plugging rod, an inner frame, a limiting rod and a sliding block, the top of the water inlet pipe is connected with the placement cylinder, the top of the placement cylinder is clamped with the sealing plug, the inner frame is fixed in the sealing plug, the plugging rod is clamped in the inner frame, two opposite sides of the plugging rod, close to the top end position, are respectively connected with the sliding block, the sliding block is clamped on the side wall of the limiting rod, the limit rod is fixed in the inner frame, the top of one side of the water pump main body is provided with an exhaust mechanism, the exhaust mechanism comprises an exhaust pipe, an air plug, a supporting rod, a connecting block, a first spring, an air guide rod and a floating ball, the top of one side of the water pump main body is provided with the exhaust pipe, the top of the exhaust pipe is clamped with the air plug, the bottom ends of the opposite sides of the air plug are respectively connected with one connecting block, the top of the connecting block is connected with the first spring, the top of the first spring is fixed in the inner wall of the exhaust pipe, the inner wall of the exhaust pipe is fixedly connected with the air guide rod, the air guide rod is fixedly connected with the floating ball, the upper part of the floating ball is fixedly provided with two mutually parallel supporting rods, the inside of the floating ball is provided with a notch, the top of the notch is communicated with the air guide rod, the surface of the floating ball is sleeved with a sealing plate, the sealing plate is of an arc-shaped structure, the sealing plate is attached to the inner wall of the exhaust pipe, a sliding block is arranged on the side wall of the sealing plate, the sliding block is matched with a sliding groove, the sliding groove is formed in the inner side wall of the exhaust pipe, and a filtering mechanism is arranged in the exhaust pipe.

Preferably, in order to facilitate water flowing in and out of the water pump main body, two opposite sides of the water pump main body are respectively provided with two placement frames, and the two placement frames are placed in parallel.

Preferably, in order to improve the tightness between the mounting cylinder and the sealing plug, the backflow prevention mechanism further comprises a sealing ring, wherein the sealing ring is arranged between the mounting cylinder and the sealing plug, and the sealing ring is in a circular ring shape.

Preferably, in order to facilitate the resetting of the limiting rod, the anti-backflow mechanism further comprises a second spring, the bottom of the sliding block is connected with the second spring, the second spring is wound on the limiting rod, and the bottom end of the second spring is abutted against the inner wall of the sealing plug.

Preferably, for the convenience to filter the drainage, filtering mechanism includes filter screen, mounting groove, third spring and fixture block, the inside of calandria is equipped with the filter screen, be equipped with one on the inner wall of filter screen opposite sides respectively the mounting groove, the filter screen is being equipped with on the inner wall at mounting groove position be equipped with the third spring, the other end of third spring is connected with the fixture block.

Preferably, in order to facilitate the fixing and clamping of the clamping block, the filtering mechanism further comprises a clamping groove and a sliding groove, one sliding groove is respectively arranged on two opposite sides of the inner wall of the calandria, and one clamping groove is respectively arranged on two opposite sides of the inner wall of the calandria.

The beneficial effects of the invention are as follows:

(1) The water pump is characterized in that the water inlet pipe and the water outlet pipe are respectively connected with corresponding flowing pipelines, then, a user can connect the water pump main body with a power supply, the water pump main body pumps the water pump through the water inlet pipe, after the water enters the water inlet pipe, the bottom end of the blocking rod can be extruded and pushed due to the impact force of water flow, at the moment, the blocking rod can slide in the inner frame under the driving of the sliding block and gradually pushed and lifted, at the moment, water flow can flow into the water inlet pipe inside the water pump main body from the opened notch and finally is discharged through the water outlet pipe, after the water pump main body stops working, the blocking rod is not impacted by the water flow, the blocking rod falls down mainly under the action of gravity, the notch on the water inlet pipe is blocked again, and therefore, the water stored in the water pump main body can be prevented from flowing back during use, and the use inconvenience is avoided.

(2) After rivers get into in the pipe, probably can produce a large amount of gases, after rivers get into the blast pipe, simultaneously along with the continuous increase of atmospheric pressure, the floater will rise gradually, drives the butt and extrudees the promotion to the air lock, makes first spring by tensile, and the through-hole in the air lock will expose in the air to the convenience is discharged a large amount of gases that produce in the liquid rivers, further avoids causing the influence in the water pump main part.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the connection structure of the inlet and outlet mechanism, the anti-reflux mechanism and the exhaust mechanism shown in FIG. 1;

FIG. 3 is a schematic view of the exhaust mechanism shown in FIG. 1;

FIG. 4 is a schematic view of a connection structure between the inlet and outlet mechanism and the filtering mechanism shown in FIG. 1;

FIG. 5 is an enlarged schematic view of portion A shown in FIG. 2;

FIG. 6 is an enlarged schematic view of portion B shown in FIG. 4;

FIG. 7 is a schematic view of the seal plate and slider arrangement shown in FIG. 1.

In the figure: 1. the water pump comprises a water pump main body, 2, a mounting frame, 3, an inlet and outlet mechanism, 31, an inlet pipe, 32, a discharge pipe, 4, an anti-backflow mechanism, 41, a mounting cylinder, 42, a sealing plug, 43, a sealing ring, 44, a blocking rod, 45, an inner frame, 46, a limiting rod, 47, a sliding block, 48, a second spring, 5, an exhaust mechanism, 51, an exhaust pipe, 52, an air plug, 53, a supporting rod, 54, a connecting block, 55, a first spring, 56, an air guide rod, 57, a floating ball, 58, an opening groove, 59, a sealing plate, 510, a sliding block, 511, a sliding groove, 6, a filtering mechanism, 61, a filter screen, 62, a mounting groove, 63, a third spring, 64, a clamping block, 65, a clamping groove, 66 and a sliding groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, a pressurized anti-backflow water pump comprises a water pump main body 1, inlet and outlet mechanisms 3 are arranged at two sides of the water pump main body 1, the inlet and outlet mechanisms 3 comprise a water inlet pipe 31 and a water discharge pipe 32, one side of the water pump main body 1 is connected with the water inlet pipe 31, the other side of the water pump main body 1 is connected with the water discharge pipe 32, an anti-backflow mechanism 4 is arranged at the top of the water inlet pipe 31, the anti-backflow mechanism 4 comprises a placement cylinder 41, a sealing plug 42, a blocking rod 44, an inner frame 45, a limiting rod 46 and a sliding block 47, the top of the water inlet pipe 31 is connected with the placement cylinder 41, the sealing plug 42 is clamped at the top of the placement cylinder 41, the inner frame 45 is fixed in the blocking plug 42, the blocking rod 44 is clamped in the inner frame 45, the two sides of the blocking rod 44, which are close to the top end and are opposite, are respectively connected with the sliding block 47, the slide block 47 is clamped on the side wall of the limit rod 46, the limit rod 46 is fixed in the inner frame 45, an exhaust mechanism 5 is arranged at the top of one side of the water pump main body 1, the exhaust mechanism 5 comprises an exhaust pipe 51, an air plug 52, a supporting rod 53, a connecting block 54, a first spring 55, an air guide rod 56 and a floating ball 57, the exhaust pipe 51 is arranged at the top of one side of the water pump main body 1, the air plug 52 is clamped at the top of the exhaust pipe 51, one connecting block 54 is respectively connected with the bottom ends of two opposite sides of the air plug 52, the top of the connecting block 54 is connected with the first spring 55, the top of the first spring 55 is fixed on the inner wall of the exhaust pipe 51, the air guide rod 56 is fixed on the inner wall of the exhaust pipe 51, the floating ball 57 is fixedly connected on the air guide rod 56, two mutually parallel supporting rods 53 are fixed on the upper part of the floating ball 57, the inside of floater 57 has seted up the notch 58, the top of notch 58 with air guide bar 56 intercommunication, the surface cover of floater 57 is equipped with closing plate 59, closing plate 59 is convex structure, closing plate 59 with the inner wall of blast pipe 51 laminating mutually, the lateral wall of closing plate 59 is provided with slider 510, slider 510 and spout 511 looks adaptation, spout 511 is seted up on the inside wall of blast pipe 51, the inside of calandria 32 is equipped with filtering mechanism 6. Through the cooperation of slider 510 and spout 511 that sets up, can make slider 510 reciprocate in the inside of spout 511, thereby practical drainage's function, can seal with blast pipe 51 through the closing plate 59 that sets up, when water begins to get into blast pipe 51 bottom, because blast pipe 51 top is by air lock 52 sealed, after the inside of blast pipe 51 is constantly gone into to water, can produce atmospheric pressure in blast pipe 51, thereby promote air lock 52 upwards, until the inside through-hole of air lock 52 discharges, after the inside of blast pipe 51 is discharged to some gas, the inside gas pressure of blast pipe 51 reduces, air lock 52 can slowly move downwards, the inside gas of blast pipe 51 can continue to discharge, when water continues to extrude to the inside of blast pipe 51, floater 57 can upwards promote, thereby floater 57 drives the butt 53 of its top and contradicts to air lock 52, before butt 53 butt to air lock 52, when water pressure is big enough, water can get into the inside of air guide 56 from the groove 58, water pressure, thereby can not reduce water pressure and can not take place backward flow.

As a technical optimization scheme of the invention, two placement frames 2 are respectively arranged on two opposite sides of the water pump main body 1, and the two placement frames 2 are placed in parallel.

As a technical optimization scheme of the present invention, the anti-backflow mechanism 4 further includes a sealing ring 43, the sealing ring 43 is disposed between the placement cylinder 41 and the sealing plug 42, and the sealing ring 43 is in a ring shape.

As a technical optimization scheme of the present invention, the anti-backflow mechanism 4 further includes a second spring 48, the bottom of the slider 47 is connected with the second spring 48, the second spring 48 is wound on the stop lever 46, and the bottom end of the second spring 48 abuts against the inner wall of the seal plug 42.

As a technical optimization scheme of the present invention, the filtering mechanism 6 includes a filter screen 61, a placement groove 62, a third spring 63 and a clamping block 64, the filter screen 61 is disposed in the calandria 32, the placement groove 62 is disposed on inner walls of two opposite sides of the filter screen 61, the third spring 63 is disposed on an inner wall of a portion where the placement groove 62 is disposed of the filter screen 61, and the clamping block 64 is connected to the other end of the third spring 63.

As a technical optimization scheme of the present invention, the filtering mechanism 6 further includes a clamping groove 65 and a sliding groove 66, one sliding groove 66 is respectively provided on two opposite sides of the inner wall of the calandria 32, and one clamping groove 65 is respectively provided on two opposite sides of the inner wall of the calandria 32.

When the device is used, firstly, the water pump main body 1 is fixedly arranged at a required proper position through the mounting frame 2, and the preparation work of the device before use is completed; in the actual operation process, the inlet pipe 31 and the drain pipe 32 are respectively connected with corresponding flow pipes, then, a user can switch on the water pump main body 1 to suck the water pump through the inlet pipe 31, after the water enters the inlet pipe 31, the bottom end of the blocking rod 44 is extruded and pushed due to the impact force of the water flow, at the moment, the blocking rod 44 slides in the inner frame 45 under the drive of the sliding block 47 and is pushed and lifted gradually, at the moment, the water flow flows into the inlet pipe 31 in the water pump main body 1 from an opened notch and finally is discharged through the drain pipe 32, after the water pump main body 1 stops working, the blocking rod 44 is mainly fallen under the action of gravity because the blocking rod 44 is not impacted by the water flow, the notch on the inlet pipe 31 is blocked again, so that the condition of backflow of the water stored in the water pump main body 1 can be prevented during use, and inconvenience in use is avoided; meanwhile, after the water flow enters the inlet pipe 31, a large amount of gas can be generated, when the water flow enters the exhaust pipe 51, the floating ball 57 gradually rises along with the continuous increase of the air pressure, the supporting rod 53 is driven to push the air plug 52, the first spring 55 is compressed, the through hole in the air plug 52 is exposed to the air, so that a large amount of gas generated in the liquid water flow is conveniently discharged, and the influence on the inside of the water pump main body 1 is further avoided; on the other hand, in the water flow discharging process, when water flow enters the drain pipe 32, the water flow passes through the filter screen 61, so that the filter screen 61 can remove impurities in the discharged water flow, after a period of use, a user can rotate the filter screen 61, the clamping block 64 is separated from the clamping groove 65 and is clamped into the sliding groove 66 under the action of the third spring 63, the filter screen 61 can be detached, and impurities on the filter screen 61 can be removed conveniently.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a pressurization prevents against current formula water pump, includes water pump main part (1), its characterized in that: inlet and outlet mechanism (3) are arranged on two sides of water pump main body (1), inlet and outlet mechanism (3) are including advancing pipe (31) and calandria (32), one side of water pump main body (1) is connected with advance pipe (31), the opposite side of water pump main body (1) is connected with calandria (32), the top of advance pipe (31) is equipped with anti-reflux mechanism (4), anti-reflux mechanism (4) are including settling section of thick bamboo (41), sealing up (42), putty (44), inside casing (45), gag lever post (46) and slider (47), the top of advance pipe (31) is connected with settling section of thick bamboo (41), settling section of thick bamboo (41) top block has sealing up (42), sealing up (42) inside is fixed with inside casing (45), inside block of inside casing (45) has putty (44), the both sides that top position is close to opposite sides of being close to in back to each other are connected with slider (47), slider (47) block in on the top of sealing up (46) is fixed in inner casing (45) side wall (5), air pump (5) are located inside casing (5), air pump (5) are included in top (5) The utility model discloses a sealing plate, including air lock (52), butt pole (53), connecting block (54), first spring (55), air guide pole (56) and floater (57), the top of water pump main part (1) one side is equipped with blast pipe (51), the top block of blast pipe (51) has air lock (52), the bottom of the opposite sides of air lock (52) is connected with one respectively connecting block (54), the top of connecting block (54) is connected with first spring (55), first spring (55) top is fixed in the inner wall of blast pipe (51), be fixed with on the inner wall of blast pipe (51) air guide pole (56), fixedly connected with on air guide pole (56) floater (57), floater (57) upper portion is fixed with two butt poles (53) that are parallel to each other, open the inside of floater (57) has cut out groove (58), the top of cut out groove (58) with air guide pole (56) intercommunication, the top of connecting block (54) is connected with first spring (55), be fixed with on the inner wall of blast pipe (51), be fixed with on the inner wall (59) of blast pipe (51) sealing plate (59), the chute (511) is arranged on the inner side wall of the exhaust pipe (51), and a filtering mechanism (6) is arranged in the exhaust pipe (32).

2. The pressurized anti-reflux water pump as set forth in claim 1, wherein: two opposite sides of the water pump main body (1) are respectively provided with two placement frames (2), and the two placement frames (2) are placed in parallel.

3. The pressurized anti-reflux water pump as set forth in claim 1, wherein: the anti-backflow mechanism (4) further comprises a sealing ring (43), the sealing ring (43) is arranged between the placement cylinder (41) and the sealing plug (42), and the sealing ring (43) is in a circular ring shape.

4. The pressurized anti-reflux water pump as set forth in claim 1, wherein: the anti-backflow mechanism (4) further comprises a second spring (48), the bottom of the sliding block (47) is connected with the second spring (48), the second spring (48) is wound on the limiting rod (46), and the bottom end of the second spring (48) is abutted against the inner wall of the sealing plug (42).

5. The pressurized anti-reflux water pump as set forth in claim 1, wherein: the filtering mechanism (6) comprises a filter screen (61), a placement groove (62), a third spring (63) and a clamping block (64), wherein the filter screen (61) is arranged in the calandria (32), one placement groove (62) is respectively arranged on the inner walls of the two opposite sides of the filter screen (61), the third spring (63) is arranged on the inner wall of the placement groove (62) of the filter screen (61), and the other end of the third spring (63) is connected with the clamping block (64).

6. The pressurized anti-reflux water pump as set forth in claim 1, wherein: the filtering mechanism (6) further comprises a clamping groove (65) and a sliding groove (66), wherein one sliding groove (66) is respectively arranged on two opposite sides of the inner wall of the calandria (32), and one clamping groove (65) is respectively arranged on two opposite sides of the other inner wall of the calandria (32).