CN212717110U

CN212717110U - Diaphragm pump

Info

Publication number: CN212717110U
Application number: CN202021627507.7U
Authority: CN
Inventors: 张速科
Original assignee: Zhejiang Hanzhou Pump Technology Co ltd
Current assignee: Zhejiang Hanzhou Pump Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-16
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a diaphragm pump, which comprises a cylinder, a pump body with an inner cavity, an elastic diaphragm and a T-shaped pipeline; the elastic diaphragm is arranged in the pump body to separate an inner cavity of the pump body into an air cavity and a liquid cavity; the air cylinder is arranged on the pump body, and a piston rod of the air cylinder penetrates through the air cavity and is fixedly connected with one surface of the diaphragm; one of them connector of T type pipeline and the liquid cavity intercommunication of the pump body, feed liquor valve and flowing back valve, its characterized in that are installed respectively to two other connectors: and a negative pressure suction component used for enhancing the compression amount of the conveying liquid is arranged at one end of the T-shaped pipeline provided with the liquid discharge valve. The utility model discloses the practicality is strong, easily promotes.

Description

Diaphragm pump

Technical Field

The utility model belongs to the technical field of the diaphragm pump technique and specifically relates to a diaphragm pump is related to.

Background

The diaphragm pump is also called as a pneumatic diaphragm pump, and is one of reciprocating pumps, and the pump is mainly divided into two parts which are not communicated with each other through an elastic film, corrosion-resistant rubber or an elastic metal sheet, wherein the two parts are respectively a conveyed liquid and an area where a plunger exists.

In this way, the plunger is not in contact with the liquid being transported. The reciprocating motion of the plunger is transmitted to the diaphragm through the medium on the same side, so that the diaphragm also reciprocates, and the liquid to be conveyed is sucked and discharged through the spherical valve.

Long-term tests and investigations of the company find that the elastic fatigue phenomenon exists after an elastic film in the existing diaphragm pump is used for a certain continuous use time in the use process, so that the insufficient compression amount of a transfusion area is caused, and the water diversion fault is caused; since the trouble shooting takes time and the working equipment needs to be stopped temporarily, the normal production of the enterprise is affected.

Therefore, the utility model provides a diaphragm pump with interim reinforcing conveying liquid compression volume aims at solving the problem that interim maintenance influences production.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a diaphragm pump with interim reinforcing conveying liquid compression capacity function.

The technical scheme of the utility model is realized like this: a diaphragm pump comprises a cylinder, a pump body with an inner cavity, an elastic diaphragm and a T-shaped pipeline; the elastic diaphragm is arranged in the pump body to separate an inner cavity of the pump body into an air cavity and a liquid cavity; the air cylinder is arranged on the pump body, and a piston rod of the air cylinder penetrates through the air cavity and is fixedly connected with one surface of the diaphragm; one of them connector of T type pipeline and the liquid cavity intercommunication of the pump body, feed liquor valve and flowing back valve, its characterized in that are installed respectively to two other connectors: one end of the T-shaped pipeline, which is provided with the liquid discharge valve, is provided with a negative pressure suction component for enhancing the compression amount of the conveying liquid;

the negative pressure suction component comprises a suction pipeline, a standby cylinder, an air inlet pipeline and a ventilation cavity, wherein the suction pipeline is sleeved at the liquid discharge end of the T-shaped pipeline; the standby air cylinder is arranged on the pump body through an air cylinder bracket, and the output end of the standby air cylinder is communicated with the air exchange cavity; one end of the suction pipeline close to the pump body is communicated with the air exchange cavity; the output end of the suction pipeline penetrates into a discharge port of the T-shaped pipeline through a conical sleeve; one end of the air inlet pipeline is communicated with the atmosphere, the other end of the air inlet pipeline is communicated with the ventilation cavity, an air inlet one-way valve is arranged in the air inlet pipeline, and an air outlet one-way valve is arranged in the suction pipeline.

Preferably: the inner wall of the suction pipeline is fixedly connected with the outer wall of the T-shaped pipeline through at least two support rods which are uniformly distributed along the circumferential direction of the discharge port of the T-shaped pipeline.

Preferably: and a reinforced angle iron is arranged at the bent part of the T-shaped pipeline, and a threaded hole is formed in the reinforced angle iron.

Preferably: the pump body comprises an upper pump body and a lower pump body which are connected through a bolt; the connecting surface of the upper pump body is provided with a convex sealing ring, and the connecting surface of the lower pump body is provided with a concave sealing ring matched with the convex sealing ring.

Preferably: the bottom of the pump body is provided with an installation bottom plate, and the T-shaped pipeline is fixedly connected with the installation bottom plate through a connecting block; and each corner of the mounting bottom plate is provided with a threaded mounting hole.

Compared with the prior art, the utility model discloses the beneficial effect who brings does:

1. through being provided with the negative pressure suction part, when the diaphragm pump is in the use, when the elastic fatigue phenomenon appears in inside elastic film, the staff can start negative pressure suction device, negative pressure suction device carries out suction work through reserve cylinder, outside air is under the reserve cylinder effect, inside getting into T type pipeline along the clearance between suction pipeline and the T type pipeline, this time in-process gas flow is through the taper pipe, the cross-section that supplies to ventilate reduces suddenly, consequently under the inconvenient condition of reserve cylinder output flow, the gas flow velocity increases suddenly, stroke Laval structure principle produces a negative pressure outside the bin outlet of T type pipeline this moment, with this liquid discharge of help pipeline inside, consequently, this diaphragm pump can normally work and maintain to equipment conventional rest time, the effectual problem of solving interim maintenance influence production of tradition.

2. Through being provided with the bracing piece, such mode can improve the structural strength of suction pipeline, avoids appearing relative displacement's phenomenon between and the T type pipeline.

3. Install at the department of buckling of T type pipeline and consolidate the angle bar, can improve the structural strength of T type pipeline, and set up threaded hole on consolidating the angle bar, can make this pump be applicable to the inconvenient installation of bottom space, the operating mode of the installation of being convenient for of side space to this practicality that improves this diaphragm pump.

4. The sealing rings which are matched with each other are arranged between the upper pump body and the lower pump body, so that the phenomenon of leakage of the pump body can be prevented.

5. The installation bottom plate is arranged at the bottom of the pump body, so that the pump body can be conveniently installed and laid.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the operation of the negative pressure suction means;

FIG. 3 is a schematic view of a portion of the pump body;

fig. 4 is a schematic structural view of the mounting baseplate.

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 efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-3, the utility model discloses a diaphragm pump, which comprises a cylinder 1, a pump body 2 with an inner cavity 21, an elastic diaphragm 3 and a T-shaped pipeline 4; the elastic diaphragm 3 is arranged in the pump body 2 to separate the inner cavity of the pump body 2 into an air cavity and a liquid cavity; the cylinder 1 is arranged on the pump body 2, and a piston rod of the cylinder 1 penetrates through the air cavity and is fixedly connected with one surface of the diaphragm 3; one of the connectors of the T-shaped pipeline 4 is communicated with the liquid cavity of the pump body 2, and the other two connectors are respectively provided with a liquid inlet valve 22 and a liquid outlet valve 23;

the negative pressure suction component 5 comprises a suction pipeline 51, a standby cylinder 52, an air inlet pipeline 53 and a ventilation cavity 54, wherein the suction pipeline 51, the standby cylinder 52, the air inlet pipeline 53 and the ventilation cavity 54 are sleeved at the liquid discharge end of the T-shaped pipeline 4; the spare air cylinder 52 is arranged on the pump body 2 through an air cylinder bracket, and the output end of the spare air cylinder 52 is communicated with the ventilation cavity 54; one end of the suction pipeline 51 close to the pump body is communicated with the ventilation cavity 54; the output end of the suction pipeline 51 penetrates into a discharge port of the T-shaped pipeline 4 through a conical sleeve 55; one end of the air inlet pipeline 53 is communicated with the atmosphere, the other end of the air inlet pipeline is communicated with the ventilation cavity 54, an air inlet one-way valve is arranged in the air inlet pipeline 53, and an air outlet one-way valve is arranged in the suction pipeline 51.

It should be noted that: the breather chamber 54 is mounted on the pump body 2.

The specific working principle of the negative pressure suction part is as follows: the spare cylinder is flexible, exhausts and inhales to the inside of the air exchange cavity, and it has the outside air to provide along the admission line to inhale, and exhaust suction pipe discharges, and the gas in the suction pipe gets into T type pipeline delivery outlet inner chamber, and the velocity of flow becomes fast, brings the negative pressure.

The utility model discloses in the concrete implementation mode, the inner wall of suction pipeline 2 is through at least two bracing pieces 6 and the 4 outer wall fixed connection of T type pipeline of evenly distributed along 4 bin outlet circumference of T type pipeline.

In the embodiment of the present invention, the pump body 2 includes an upper pump body 201 and a lower pump body 202 connected by bolts; a convex sealing ring 2011 is arranged on the connecting surface of the upper pump body 201, and a concave sealing ring 2012 matched with the convex sealing ring 2011 is arranged on the connecting surface of the lower pump body 202; during installation, the two sealing rings are mutually extruded under the action of the bolt, so that good air tightness is ensured.

Compared with the prior art, the beneficial effects of the utility model are that:

3. The sealing rings which are matched with each other are arranged between the upper pump body and the lower pump body, so that the phenomenon of leakage of the pump body can be prevented.

Example 2 differs from example 1 in that

As shown in fig. 4, in the embodiment of the present invention, the bottom of the pump body 2 is provided with a mounting bottom plate 6, and the T-shaped pipe 4 is fixedly connected to the mounting bottom plate 6 through a connecting block 61; the connecting block 61 can support the T-shaped pipeline 4 to prevent the T-shaped pipeline 4 from being stressed for a long time, and each corner of the mounting base plate 6 is provided with a threaded mounting hole.

The utility model discloses in the concrete implementation mode, the department of buckling of T type pipeline 4 installs and consolidates angle bar 7, has seted up the screw hole on this reinforcement angle bar 7.

1. install at the department of buckling of T type pipeline and consolidate the angle bar, can improve the structural strength of T type pipeline, and set up threaded hole on consolidating the angle bar, can make this pump be applicable to the inconvenient installation of bottom space, the operating mode of the installation of being convenient for of side space to this practicality that improves this diaphragm pump.

2. The installation bottom plate is arranged at the bottom of the pump body, so that the pump body can be conveniently installed and laid.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A diaphragm pump comprises a cylinder, a pump body with an inner cavity, an elastic diaphragm and a T-shaped pipeline; the elastic diaphragm is arranged in the pump body to separate an inner cavity of the pump body into an air cavity and a liquid cavity; the air cylinder is arranged on the pump body, and a piston rod of the air cylinder penetrates through the air cavity and is fixedly connected with one surface of the diaphragm; one of them connector of T type pipeline and the liquid cavity intercommunication of the pump body, feed liquor valve and flowing back valve, its characterized in that are installed respectively to two other connectors: one end of the T-shaped pipeline, which is provided with the liquid discharge valve, is provided with a negative pressure suction component for enhancing the compression amount of the conveying liquid;

2. A diaphragm pump according to claim 1, wherein: the inner wall of the suction pipeline is fixedly connected with the outer wall of the T-shaped pipeline through at least two support rods which are uniformly distributed along the circumferential direction of the discharge port of the T-shaped pipeline.

3. A diaphragm pump according to claim 2, wherein: and a reinforced angle iron is arranged at the bent part of the T-shaped pipeline, and a threaded hole is formed in the reinforced angle iron.

4. A diaphragm pump according to claim 3, wherein: the pump body comprises an upper pump body and a lower pump body which are connected through a bolt; the connecting surface of the upper pump body is provided with a convex sealing ring, and the connecting surface of the lower pump body is provided with a concave sealing ring matched with the convex sealing ring.

5. A diaphragm pump according to claim 3, wherein: the bottom of the pump body is provided with an installation bottom plate, and the T-shaped pipeline is fixedly connected with the installation bottom plate through a connecting block; and each corner of the mounting bottom plate is provided with a threaded mounting hole.