CN214092252U

CN214092252U - Diaphragm pump with gas pressure induction start-stop device

Info

Publication number: CN214092252U
Application number: CN202023234622.0U
Authority: CN
Inventors: 史远吉
Original assignee: Changzhou Yuanwang Fluid Technology Co ltd
Current assignee: Changzhou Yuanwang Fluid Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-31
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a diaphragm pump with gas pressure response opens and stops device, including box, motor, the pump body and pump cover, the motor is fixed to be set up on the box top, motor output shaft runs through the setting inside the box, motor output shaft tip fixed surface is connected with the eccentric wheel, eccentric wheel one side articulates there is the connecting rod, connecting rod one end fixedly connected with diaphragm, the diaphragm is fixed to be set up in pump body one side, pump body opposite side connects to have intake pipe and outlet duct. The utility model discloses simple structure, convenient to use opens through opening the gas pressure response and stops the device setting on the diaphragm pump, can realize the automatic air supplement of gas pitcher, and degree of automation is high, not only can reduce the hand labor power, can also avoid the diaphragm pump to damage, the emergence of gas pitcher danger of exploding.

Description

Diaphragm pump with gas pressure induction start-stop device

Technical Field

The utility model relates to a diaphragm pump field, in particular to diaphragm pump with gas pressure response opens and stops device.

Background

Diaphragm pumps are a more particular form of positive displacement pump. It relies on the back and forth movement of a diaphragm to vary the volume of the working chamber to draw and expel fluid. The diaphragm pump mainly comprises a transmission part and a diaphragm cylinder head. The transmission part is a driving mechanism for driving the diaphragm to swing back and forth, and the transmission form of the driving mechanism is a mechanical diaphragm metering pump, hydraulic transmission, pneumatic transmission and the like.

When using the diaphragm pump to convey gas for the gas tank, the existing manufacturer needs to additionally arrange a pressure sensing device in the gas tank, and then controls the starting of the diaphragm pump through a control circuit, so that the phenomenon that the internal pressure of the gas tank is too large and the diaphragm pump is damaged is avoided.

Therefore, it is necessary to invent a diaphragm pump having a gas pressure sensing start-stop device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a diaphragm pump with gas pressure response opens and stops device opens and stops the device combination setting on the diaphragm pump with gas pressure response, when gas pitcher internal pressure was too big, diaphragm pump automatic shutdown avoided the diaphragm pump to damage to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a diaphragm pump with a gas pressure induction start-stop device comprises a box body, a motor, a pump body and a pump cover, wherein the motor is fixedly arranged at the top end of the box body, a motor output shaft penetrates through the box body, an eccentric wheel is fixedly connected to the surface of the end part of the motor output shaft, a connecting rod is hinged to one side of the eccentric wheel, a diaphragm is fixedly connected to one end of the connecting rod, the diaphragm is fixedly arranged at one side of the pump body, an air inlet pipe and an air outlet pipe are communicated with the other side of the pump body, the pump cover is fixedly connected to the pump body through a stud, the gas pressure induction start-stop device is fixedly arranged at one side of the box body and comprises a shell, a push rod, a spring, a piston and a limit switch, the shell comprises a gas pressure shell and a switch shell, the shell is fixedly connected with the box body, a connecting pipe is arranged at the top end of the gas pressure shell, the piston is movably arranged in the connecting pipe, the push rod top and piston bottom fixed connection, the push rod runs through the setting of pneumatic shell, and the push rod bottom communicates with the switch shell mutually, limit switch sets up inside the switch shell, and sets up under the push rod, the spring housing is established on the push rod surface, spring top and piston bottom fixed connection, the spring bottom and pneumatic shell bottom fixed surface are connected.

Preferably, the top end of the connecting pipe is fixedly connected with a three-way valve, one end of the three-way valve is communicated with the air outlet pipe through a pipeline, and the other end of the three-way valve is externally connected onto the air tank through a pipeline.

Preferably, the surface of the piston is sleeved with a sealing gasket.

Preferably, a through hole is formed in the bottom end of the air pressure shell, the push rod penetrates through the through hole, and a sealing ring is fixedly arranged on the inner wall of the through hole.

Preferably, the limit switch is a small-stroke limit duplex microswitch.

The utility model discloses a technological effect and advantage: simple structure, convenient to use opens through opening the gas pressure response and stops the device setting on the diaphragm pump, can realize the automatic air supplement of gas pitcher, and degree of automation is high, not only can reduce the hand labor power, can also avoid the diaphragm pump to damage, the emergence of gas pitcher explosion danger.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the utility model discloses a gas pressure response opens stops device overall structure sketch map.

Fig. 3 is the schematic view of the cross-sectional structure of the gas pressure sensing start/stop device of the present invention.

In the figure: the device comprises a box body 1, a motor 2, a pump body 3, a pump cover 4, an air inlet pipe 5, an air outlet pipe 6, a shell 7, a push rod 8, a spring 9, a piston 10, a limit switch 11, a pressure shell 12, a switch shell 13 and a connecting pipe 14.

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.

The utility model provides a diaphragm pump with a gas pressure induction start-stop device as shown in figures 1-3, which comprises a box body 1, a motor 2, a pump body 3 and a pump cover 4, wherein the motor 2 is fixedly arranged at the top end of the box body 1, an output shaft of the motor 2 is arranged inside the box body 1 in a penetrating way, the end surface of the output shaft of the motor 2 is fixedly connected with an eccentric wheel, one side of the eccentric wheel is articulated with a connecting rod, one end of the connecting rod is fixedly connected with a diaphragm, the diaphragm is fixedly arranged at one side of the pump body 3, the other side of the pump body 3 is communicated with an air inlet pipe 5 and an air outlet pipe 6, the pump cover 4 is fixedly connected on the pump body 3 through a stud, one side of the box body 1 is fixedly provided with the gas pressure induction start-stop device, the gas pressure induction start-stop device comprises a shell 7, a push rod 8, a spring 9, a piston 10 and a limit switch 11, the shell 7 comprises a gas pressure shell 12 and a switch shell 13,

shell

7 and 1 fixed connection of box, 12 tops of atmospheric pressure shell have connecting pipe 14, the activity of piston 10 sets up inside connecting

pipe

14, 8 tops of push rod and 10 bottom fixed connection of piston, push rod 8 runs through the setting of

atmospheric pressure shell

12, and 8 bottoms of push rod are linked together with switch shell 13, limit switch 11 sets up inside switch shell 13, and sets up under push rod 8, the cover of spring 9 is established on push rod 8 surface, the top of

spring

9 and 10 bottom fixed connection of piston, the surface fixed connection in spring 9 bottom and 12 bottoms of atmospheric pressure shell.

Further, in the above technical solution, the top end of the connecting pipe 14 is fixedly connected with a three-way valve, one end of the three-way valve is communicated with the gas outlet pipe 6 through a pipeline, and the other end is externally connected to the gas tank through a pipeline;

further, in the above technical solution, a sealing washer is sleeved on the surface of the piston 10;

further, in the above technical solution, a through hole is formed at the bottom end of the air pressure shell 12, the push rod 8 penetrates through the through hole, and a seal ring is fixedly arranged on the inner wall of the through hole;

further, in the above technical solution, the limit switch 11 is a small-stroke limit duplex micro switch, and the limit switch 11 is connected to the control circuit through a wire;

further, in the above technical solution, the specific model of the limit switch 11 is V-14-1C 25.

This practical theory of operation:

when gas needs to be added into the gas tank, the motor 2 is directly powered on (namely, the diaphragm pump works), at the moment, gas is input into the gas tank through the gas inlet pipe 5 and is conveyed into the gas tank through the gas outlet pipe 6, the gas adding function is realized, when the gas tank is filled up, the internal pressure of the gas tank is gradually increased, when the gas pressure is greater than the elastic force of the spring 9, the gas can push the piston 10 to move downwards through the three-way valve, the piston 10 moves downwards to drive the push rod 8 to move downwards, the bottom end of the push rod 8 touches the limit switch 11, and the control circuit controls the motor 2 to be powered off, so that the diaphragm pump stops working; gas pitcher is in the use, and gas pitcher internal pressure reduces gradually, and after the gas pitcher pressure release reached the certain degree, when gas pressure was less than spring 9's elasticity, spring 9 recovered deformation and drove push rod 8 and breaks away from limit switch 11, and control circuit control motor 2 circular telegram this moment, and the diaphragm pump works again, carries out the tonifying qi to the gas pitcher, circulates in proper order.

In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and can, for example, be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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 a diaphragm pump with gas pressure response opens and stops device, includes box (1), motor (2), the pump body (3) and pump cover (4), motor (2) are fixed to be set up on box (1) top, motor (2) output shaft runs through to set up inside box (1), motor (2) output shaft tip fixed surface is connected with the eccentric wheel, eccentric wheel one side articulates there is the connecting rod, connecting rod one end fixedly connected with diaphragm, the diaphragm is fixed to be set up in pump body (3) one side, another side of the pump body (3) is expert to have intake pipe (5) and outlet duct (6), pump cover (4) open and stop the device through double-screw bolt fixed connection on the pump body (3), box (1) one side is fixed to be provided with gas pressure response, its characterized in that: the gas pressure induction start-stop device comprises a shell (7), a push rod (8), a spring (9), a piston (10) and a limit switch (11), wherein the shell (7) comprises a gas pressure shell (12) and a switch shell (13), the shell (7) is fixedly connected with a box body (1), a connecting pipe (14) is arranged at the top end of the gas pressure shell (12), the piston (10) is movably arranged inside the connecting pipe (14), the top end of the push rod (8) is fixedly connected with the bottom end of the piston (10), the push rod (8) penetrates through the gas pressure shell (12), the bottom end of the push rod (8) is communicated with the switch shell (13), the limit switch (11) is arranged inside the switch shell (13) and under the push rod (8), the spring (9) is sleeved on the surface of the push rod (8), the top end of the spring (9) is fixedly connected with the bottom end of the piston (10), the bottom end of the spring (9) is fixedly connected with the bottom end surface of the air pressure shell (12).

2. A diaphragm pump with a gas pressure-sensitive start-stop device according to claim 1, characterized in that: the top end of the connecting pipe (14) is fixedly connected with a three-way valve, one end of the three-way valve is communicated with the air outlet pipe (6) through a pipeline, and the other end of the three-way valve is externally connected onto the air tank through the pipeline.

3. A diaphragm pump with a gas pressure-sensitive start-stop device according to claim 1, characterized in that: and a sealing washer is sleeved on the surface of the piston (10).

4. A diaphragm pump with a gas pressure-sensitive start-stop device according to claim 1, characterized in that: the bottom end surface of the air pressure shell (12) is provided with a through hole, the push rod (8) penetrates through the through hole, and a sealing ring is fixedly arranged on the inner wall of the through hole.

5. A diaphragm pump with a gas pressure-sensitive start-stop device according to claim 1, characterized in that: the limit switch (11) is a small-stroke limit duplex microswitch.