CN215830692U

CN215830692U - Telescopic air sac pump device

Info

Publication number: CN215830692U
Application number: CN202121583884.XU
Authority: CN
Inventors: 徐力; 常中东; 沈凯桦
Original assignee: Shanghai Zhichun Precision Manufacturing Co ltd
Current assignee: Shanghai Zhichun Precision Manufacturing Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-15
Anticipated expiration: 2031-07-12

Abstract

The utility model provides a telescopic air sac pump device, which comprises a pump body, wherein a water inlet and a water outlet are formed in the same side wall of the pump body, and the water inlet and the water outlet are respectively communicated with a water inlet interface and a water outlet interface; the water inlet and the water outlet are respectively fixedly connected with a dual-purpose check valve in a sealing manner, and air bags are fixedly arranged on the outer sides of the water inlet and the water outlet in a sealing manner. The utility model can randomly change the positions of the water inlet and the water outlet of the air sac pump, so that the air sac pump can be adapted to various pipelines, and the pipeline maintenance cost is saved.

Description

Telescopic air sac pump device

Technical Field

The utility model relates to the technical field of air sac pumps, in particular to a telescopic air sac pump device.

Background

In current air sac pump, the water inlet is established the outlet opening rigidity, but in the practicality, the rigidity of pipeline, when air sac pump in the pipeline appears damaging the air sac pump that needs the renewal, for with be used for the pipeline in the liquid flow direction phase-match, need use the air sac pump of the same model to change usually, increased the replacement cost of air sac pump. Therefore, a telescopic air sac pump is needed, the position of a water inlet and a water outlet of the air sac pump can be changed at will, the air sac pump can be adapted to various pipelines, and the pipeline maintenance cost is saved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a telescopic air bag pump device, which can separate a strong corrosive liquid such as acid and alkali from a driving mechanism for driving the air bag pump to work, so as to prevent the strong corrosive liquid such as acid and alkali from damaging a driving technician.

In order to solve the technical problems, the utility model adopts the technical scheme that:

a telescopic air sac pump device comprises a pump body, wherein a water inlet and a water outlet are formed in the same side wall of the pump body, and the water inlet and the water outlet are respectively communicated with a water inlet interface and a water outlet interface;

the water inlet and the water outlet are respectively fixedly connected with a dual-purpose check valve in a sealing manner, and air bags are fixedly arranged on the outer sides of the water inlet and the water outlet in a sealing manner.

Further, the dual-purpose check valve is including the connection shell of siphunculus structure, coaxial arrangement has the conduction valve in the connection shell, the conduction valve is the sealed tubular structure of one end, the conduction valve open end cup joints reset spring one end.

Furthermore, the conduction valve is sealed to be of an end circular truncated cone structure, and a circulation hole communicated with the opening end of the conduction valve is formed in the inclined side wall of the conduction valve.

Furthermore, the connecting shell is connected with the water inlet and the water outlet through threads, and a limiting boss is additionally arranged on the inner wall of the suspended end of the connecting shell.

Further, dual-purpose check valve is including positive check valve and anti-check valve, the sealed end of conduction valve sets up towards spacing boss in the positive check valve, the sealed end of conduction valve keeps away from spacing boss setting in the anti-check valve.

Furthermore, a reverse one-way valve is arranged at the water inlet, and a forward one-way valve (51) is fixedly arranged at the water outlet.

Furthermore, the inner diameters of the water inlet, the water outlet and the limiting boss are slightly larger than the minimum outer diameter of the sealing end of the conduction valve.

Furthermore, a circulation cavity with a cylindrical structure is formed between the air sac and the pump body.

Furthermore, the air sac is of a barrel-shaped structure, and the side wall of the air sac is of an accordion structure.

The utility model has the advantages and positive effects that:

through all installing dual-purpose check valve in the water inlet and the mouth of a river department of the pump body, dual-purpose check valve is including connecting the shell, conduction valve and reset spring coaxial arrangement are inside connecting the shell, reset spring has been cup jointed to conduction valve's open end, connect shell one end and water inlet and mouth of a river department sealed fixed connection simultaneously, conduction valve is towards the link setting of connecting the shell, when link pressure is greater than free end pressure, the check valve switches on, use as anti-check valve, conduction valve is located the free end setting of connecting the shell, when link pressure is less than free end pressure, the check valve switches on, do positive check valve and use, when using, the orientation of conduction valve in the dual-purpose check valve is changed to the accessible, the position of control bellows pump business turn over hand mouth, and then make things convenient for being connected of bellows pump and pipeline, practice thrift pipeline cost of maintenance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front view of a telescoping bellows pump device of the present invention;

FIG. 2 is a front view of a telescoping bellows pump device of the present invention with the bellows removed;

fig. 3 is an overall structural view of a telescopic bellows pump device of the present invention.

In the figure: 1. a pump body; 2. a wind sac; 3. a water outlet interface; 301. a water outlet; 4. a water inlet interface; 401. a water inlet; 5. a dual-purpose check valve; 51. a positive check valve; 52. a reverse check valve; 501. a connecting shell; 502. a return spring; 503. a conduction valve; 5031. and (4) a flow hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a telescopic air sac pump device, which comprises a pump body 1 for circulating liquid, wherein a water inlet 401 and a water outlet 301 are formed in the same side wall of the pump body 1, an air sac 2 is hermetically arranged on the outer sides of the water inlet 401 and the water outlet 301, and the air sac 2 is conveniently arranged by forming the water inlet 401 and the water outlet 301 in the same side wall. A sealed circulation cavity can be formed between the air bag 2 and the pump, the water inlet 401 and the water outlet 301 are respectively communicated with the water inlet interface 4 and the water outlet interface 3, the water inlet interface 4 and the water outlet interface 3 are connected with an external pipeline, external liquid enters the circulation cavity from the water inlet pipe, and the liquid in the circulation cavity is discharged from the water outlet pipe.

The water inlet 401 and the water outlet 301 are respectively fixedly connected with a dual-purpose check valve 5 in a sealing manner (the two dual-purpose check valves 5 are both in the flow-through cavity), and the dual-purpose check valve 5 can be arranged at the water inlet 401 or the water outlet 301. As shown in fig. 2, the dual-purpose check valve 5 includes a connecting housing 501 having a through pipe structure, and a return spring 502 and a conducting valve 503 are coaxially installed in the connecting housing 501. When the pressure at the two ends of the conduction valve 503 changes, the conduction valve 503 moves axially, so that the connection shell 501 is sealed or conducted, and the reset spring 502 is used for enabling the conduction valve 503 to return to the original position (when the conduction valve 503 returns to the original position, the dual-purpose one-way valve 5 is in a sealed state) so that the sealing of the dual-purpose one-way valve 5 is not influenced by gravity.

The conduction valve 503 is a tubular structure with one end sealed, and the opening end of the conduction valve 503 is sleeved with a return spring 502. The sealing end of the conduction valve 503 is in a truncated cone structure, the inclined side wall of the conduction valve 503 is provided with a circulation hole 5031 communicated with the opening end of the conduction valve 503, and the included angle between the circulation hole 5031 and the liquid flow direction is smaller, so that the loss in the liquid flow is reduced, and the flow of the dual-purpose one-way valve 5 is further improved. The end face of the sealing end of the conduction valve 503 is a sealing surface, the dual-purpose check valve 5 is connected to the water inlet 401 and the water outlet 301, the sealing surface blocks the water inlet and the water inlet of the hanging end of the connection pipe, and after the sealing surface is removed from the sealing position, the liquid at the two ends of the connection pipe flows through the circulation hole 5031.

The connecting shell 501 is in threaded connection with the water inlet 401 and the water outlet 301, and meanwhile, a limiting boss is additionally arranged on the inner wall of the suspended end of the connecting shell 501. The dual-purpose check valve 5 comprises a positive check valve 51 and a reverse check valve 52, wherein the positive check valve 51 is a limiting boss of which the sealing end of the conduction valve 503 faces the connecting shell 501, and the sealing surface of the conduction valve 503 seals the limiting boss to prevent the positive check valve 51 from flowing. The radius of the sealing surface is smaller than the inner diameter of the limiting boss, so that when the conduction valve 503 seals the limiting boss, the sealing surface extends into the limiting boss, and the sealing effect of the conduction valve 503 is improved.

The anti-check valve 52 is the connection end that the sealed end of conduction valve 503 was connected the shell 501 towards, after anti-check valve 52 installed in water inlet 401 department, water inlet 401 was plugged up to the sealed face degree of conduction valve 503, makes anti-check valve 52 not circulate, and sealed face radius slightly is lighter than the setting of water inlet 401 and delivery port 301 internal diameter, makes the sealed water inlet 401 of conduction valve 503 or delivery port 301 time, and the sealed face on the conduction valve 503 can stretch into in water inlet 401 and the delivery port 301, improves the leakproofness of water inlet 401 and delivery port 301 department.

Because the dual-purpose check valves 5 (the forward check valve 51 and the reverse check valve 52) installed at the water inlet 401 and the water outlet 301 are the same in used parts, the orientation of the conduction valve 503 in the dual-purpose check valve 5 can be changed in the installation and use of the air sac pump, so that liquid in the air sac pump reversely flows, the positions of the water inlet 401 and the water outlet 301 of the air sac pump are changed, and the air sac pump is convenient to match with a pipeline. And the two dual-purpose check valves 5 are not influenced mutually, and if the dual-purpose check valve 5 at the water inlet 401 or the water outlet 301 is damaged, the dual-purpose check valve can be directly replaced.

The air bag 2 is fixedly arranged on the outer sides of the water inlet 401 and the water outlet 301 in a sealing mode, a circulation cavity body with a cylindrical structure is formed between the air bag 2 and the pump body 1, and liquid sucked from the water inlet 401 is stored in the circulation cavity body. The flow cavity is of a cylindrical structure, so that the volume of the flow cavity can be increased to the maximum extent (the area of a circle is the largest under the condition that the side lengths are the same). The air sac 2 is of a barrel-shaped structure, the side wall of the air sac 2 is a telescopic side wall of an accordion structure, when the air sac 2 is telescopic, the inner diameter of the air sac 2 is not easy to change, and the action of the dual-purpose one-way valve 5 is prevented from being influenced.

The working principle and the working process of the utility model are as follows:

when the air sac pump absorbs water, a pulling force towards the axial outer side of the air sac 2 is exerted on the bottom surface of the air sac 2, the air sac 2 stretches to increase the volume of the circulation cavity, so that the pressure at the water inlet 401 and the water outlet 301 is greater than the pressure in the circulation cavity, the pressure at two sides of the upper sealing surface of the conduction valve 503 changes, and the conduction valve 503 in the dual-purpose one-way valve 5 is subjected to the force of axial movement and moves towards the inside of the circulation cavity.

The sealing surface of the conduction valve 503 in the reverse check valve 52 moves axially to expose the water inlet 401, two ends of the reverse check valve 52 are communicated through the communication hole 5031, and liquid is sucked into the communication cavity from the water inlet 401 because the pressure in the communication cavity is lower than that at the water inlet 401; the conduction valve 503 in the dual-purpose check valve 5 at the water outlet 301 moves axially and is blocked by the limiting boss, so that the sealing end of the conduction valve 503 in the positive check valve 51 is tightly pressed on the limiting boss, and the sealing performance of the positive check valve 51 is enhanced.

When the air sac pump drains water, pressure towards the axial inner side of the air sac 2 is applied to the bottom surface of the air sac 2, the air sac 2 is compressed, the volume of the circulation cavity is further reduced, the pressure in the circulation cavity is larger than the pressure at the water inlet 401 and the water outlet 301, the pressure on two sides of the upper sealing surface of the conduction valve 503 is changed, and the conduction valve 503 in the dual-purpose one-way valve 5 can be subjected to axial movement force and moves towards the outside of the circulation cavity.

The conducting valve 503 in the reverse one-way valve 52 blocks the water inlet 401 again, the reverse one-way valve 52 is closed, the air sac pump stops sucking water, the conducting valve 503 in the forward one-way valve 51 moves to a position close to the water outlet 301, the circulation cavity is communicated with the water outlet 301 through the circulation hole 5031, and liquid in the circulation cavity is pressed out of the water outlet 301 because the pressure in the circulation cavity is higher than the pressure at the water outlet 301.

When the air bag pump connected to the pipeline is damaged and needs to be replaced, the orientation of the conduction valve 503 in the dual-purpose one-way valve 5 can be adjusted according to the flowing direction of liquid on the pipeline, the positions of the water inlet 401 and the water outlet 301 of the air bag pump are automatically determined, the flowing direction of the liquid in the air bag pump is matched with the pipeline, and the air bag pump is convenient to replace.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The telescopic air sac pump device is characterized by comprising a pump body (1), wherein a water inlet (401) and a water outlet (301) are formed in the same side wall of the pump body (1), and the water inlet (401) and the water outlet (301) are respectively communicated with a water inlet interface (4) and a water outlet interface (3);

the air bag (2) is fixedly installed on the outer sides of the water inlet (401) and the water outlet (301) in a sealing mode, and the two-purpose check valve (5) is fixedly connected to the positions of the water inlet (401) and the water outlet (301) in a sealing mode respectively.

2. The telescopic bellows pump device according to claim 1, wherein the dual-purpose check valve (5) comprises a connecting shell (501) with a through pipe structure, a conducting valve (503) is coaxially installed in the connecting shell (501), the conducting valve (503) is of a tubular structure with one sealed end, and a return spring (502) is sleeved at the open end of the conducting valve (503).

3. The telescopic bellows pump device of claim 2, wherein the conduction valve (503) is sealed in an end truncated cone structure, and a through hole (5031) communicated with the opening end of the conduction valve (503) is formed in the inclined side wall of the conduction valve (503).

4. The telescopic bellows pump device of claim 2, characterized in that the connecting shell (501) is connected to the water inlet (401) and the water outlet (301) in a threaded manner, and a limit boss is additionally arranged on the inner wall of the free end of the connecting shell (501).

5. A telescopic bellows pump device according to claim 3, characterized in that the dual-purpose check valve (5) comprises a positive check valve (51) and a negative check valve (52), the sealing end of the conduction valve (503) in the positive check valve (51) is arranged towards the limit boss, and the sealing end of the conduction valve (503) in the negative check valve (52) is arranged far away from the limit boss.

6. A telescopic bellows pump device according to claim 5, characterized in that a reverse check valve (52) is installed at the water inlet (401) and a forward check valve (51) is fixedly installed at the water outlet (301).

7. The telescopic bellows pump device of claim 4, wherein the inner diameters of the water inlet (401), the water outlet (301) and the limiting boss are slightly larger than the minimum outer diameter of the sealing end of the conduction valve (503)

8. A telescopic bellows pump device according to claim 1, characterized in that a cylindrically configured flow-through chamber is formed between the bellows (2) and the pump body (1).

9. A telescopic bellows pump device according to claim 1, characterized in that the bellows (2) is of a barrel-like structure and the side walls of the bellows (2) are of an accordion structure.