CN112357045A

CN112357045A - Pneumatic single-action driving head closed gas circuit device

Info

Publication number: CN112357045A
Application number: CN202011322698.0A
Authority: CN
Inventors: 王兆强; 刘俊红; 孔维文; 霍海鳌; 王磊; 孙烨; 盖晓丽; 王绍勃
Original assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Current assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-02-12

Abstract

The invention discloses a pneumatic single-action driving head closed type air path device which comprises a driving head and an adjusting component, wherein the adjusting component is provided with a working port, an exhaust port and a first air inlet; in the first state, the exhaust port is disconnected with the working port and the first air inlet, the working port and the connecting port are communicated; and in the second state, the first air inlet is disconnected with the working port and the exhaust port, and the connecting port, the working port, the exhaust port and the atmosphere inlet are communicated. Through the switching of the state that the adjusting part is in, the inside gas that finally realizes pneumatic single action driving head is all instrument gas for outside high humidity, high salt's air need not to get into in the pneumatic single action driving head closed gas circuit device, thereby has guaranteed the service function of pneumatic single action driving head closed gas circuit device, has prolonged life.

Description

Pneumatic single-action driving head closed gas circuit device

Technical Field

The invention relates to a pneumatic single-action driving head closed type air path device.

Background

Abundant water resource in the sea evaporates a large amount of water vapor to the air every day, and because the sea water splashes, the water foam atomizes, salt in the sea water can be dispersed to the air along with the air current, so that the air in the sea has the characteristics of high humidity and high salt. When the actuator in the ship works in the sea air, high-humidity and high-salt air can easily enter the interior of the actuator, which can seriously affect the function and service life of the actuator.

However, the gas used in the actuators is generally air, so that the excessive moisture and salt in the sea air can affect the working efficiency of the actuators.

Disclosure of Invention

The invention aims to overcome the defect that the working efficiency of an actuating mechanism is affected by overhigh moisture and salt in the existing ocean air, and provides a pneumatic single-action driving head closed type air path device.

The invention solves the technical problems through the following technical scheme:

a pneumatic single-action driving head closed gas circuit device comprises a driving head and an adjusting component, wherein the adjusting component is provided with a working port, an exhaust port and a first gas inlet, the driving head is provided with an atmosphere inlet and a connecting port, the working port is connected with the connecting port, the exhaust port is connected with the atmosphere inlet, and the adjusting component is used for adjusting and switching a first state and a second state; when the air inlet is in the first state, the air outlet is disconnected with the working port and the first air inlet, the working port and the connecting port are communicated; and in the second state, the first air inlet is disconnected with the working port and the exhaust port, and the connecting port, the working port, the exhaust port and the atmosphere inlet are communicated.

In this scheme, adopt above-mentioned structural style, can switch the intercommunication mode of adjusting part and drive head, make during the unable drive head that gets into of air of external high humidity, high salt, guarantee that the gas in the drive head is whole for instrument gas, and then has prolonged the life of drive head to work efficiency has been improved.

Preferably, pneumatic single-action driving head closed gas circuit device still includes exhaust apparatus, exhaust apparatus includes muffler and check valve, the check valve includes second air inlet and gas outlet, the second air inlet with the atmosphere access connection, the muffler set up in the gas outlet position.

In this aspect, with the above configuration, the gas in the drive head in the first state can be discharged through the exhaust device, and the gas in the drive head can be kept stable.

Preferably, the muffler includes a muffling cartridge communicating with the air outlet.

In the scheme, the structure is adopted, the exhaust noise is eliminated by the partition plate in the silencing cylinder, and the noise interference is reduced.

Preferably, the check valve comprises a valve body, a valve core and a valve seat, the valve core and the valve seat are positioned in the valve body, and the valve core moves in the valve body to realize the contact or disconnection between the valve core and the valve seat.

In this scheme, adopt above-mentioned structural style, outside air can't overcome spring force and frictional force and make the check valve open. By utilizing the unidirectionality of the check valve, the air with high temperature and high salt outside cannot enter, so that all the gas in the driving head is instrument gas.

Preferably, the driving head includes a housing and a piston, the piston is slidably disposed in the housing and divides the housing into a first cavity and a second cavity, the connection port and the atmosphere inlet are located on the housing, the connection port is communicated with the first cavity, and the atmosphere inlet is communicated with the second cavity.

In this scheme, adopt above-mentioned structural style, can circulate the gas in two chambeies in the drive head, guaranteed that all be instrument gas in two chambeies of drive head.

Preferably, the drive head further comprises an adjustment member connected to the piston for driving the piston to move within the housing.

In this scheme, adopt above-mentioned structural style, when the regulating part applied force to the piston, can break the gaseous balance in two chambeies in the driving head, realized the gaseous quick circulation in two chambeies in the driving head.

Preferably, the driving head further comprises an elastic member, the elastic member is located in the second cavity, and two ends of the elastic member respectively abut against the housing and the piston.

In this scheme, adopt above-mentioned structural style, can utilize the elasticity of spring to force the piston motion, make the atmospheric pressure change in first chamber and the second chamber in the drive head for the circulation of the gaseous of drive head.

Preferably, the elastic member is sleeved on the adjusting member.

In this scheme, adopt above-mentioned structural style, with the spring housing on the regulating part, can save installation space and use cost.

Preferably, the elastic member is a spring.

The positive progress effects of the invention are as follows:

according to the pneumatic single-action driving head closed gas circuit device, the state of the adjusting assembly is switched, and the fact that all internal gas of the pneumatic single-action driving head is instrument gas is finally achieved, so that external high-humidity and high-salt air does not need to enter the pneumatic single-action driving head closed gas circuit device, the use function of the pneumatic single-action driving head closed gas circuit device is guaranteed, and the service life of the pneumatic single-action driving head closed gas circuit device is prolonged.

Drawings

Fig. 1 is a schematic view of a pneumatic single-acting driving head closed air path device according to an embodiment of the present invention.

Description of reference numerals:

drive head 1

Connection port 11

Atmosphere inlet 12

Housing 13

Piston 14

Adjusting part 15

First chamber 16

Elastic member 17

Second chamber 18

Adjusting assembly 2

Working opening 21

Exhaust port 22

First air inlet 23

Exhaust device 3

Second air inlet 31

Check valve 32

Muffler 33

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 1, the pneumatic single-acting driving head closed air path device of the present invention includes a driving head 1 and an adjusting assembly 2, wherein the adjusting assembly 2 has a working port 21, an exhaust port 22 and a first air inlet 23, the driving head 1 has an atmosphere inlet 12 and a connecting port 11, the working port 21 is connected to the connecting port 11, the exhaust port 22 is connected to the atmosphere inlet 12, and the adjusting assembly 2 is used for adjusting and switching between a first state and a second state; in the first state, the exhaust port 22 is disconnected from the working port 21 and the first intake port 23, the working port 21 and the connection port 11 are communicated; in the second state, the first intake port 23 is disconnected from the working port 21 and the exhaust port 22, and the connection port 11, the working port 21, the exhaust port 22 and the atmosphere inlet 12 communicate with each other.

When the adjusting assembly 2 is powered on, instrument gas enters from the first gas inlet 23 of the adjusting assembly 2 and enters the driving head 1 through the working port 21 and the connecting port 11. After adjusting part 2 outage, instrument gas in the drive head 1 flows from connector 11, get into adjusting part 2 through working port 21, get into drive head 1 through atmosphere import 12 from gas vent 22 again, it is instrument gas to have realized the gas in the drive head 1, make outside high humidity, the air of high salt need not to get into in the pneumatic single action drive head closed gas circuit device, thereby the service function of pneumatic single action drive head closed gas circuit device has been guaranteed, the life of pneumatic single action drive head closed gas circuit device has been prolonged.

Pneumatic single-action driving head closed gas circuit device still includes exhaust apparatus 3, and exhaust apparatus 3 includes muffler 33 and check valve 32, and check valve 32 includes second air inlet 31 and gas outlet, and second air inlet 31 is connected with atmosphere import 12, and muffler 33 sets up in the gas outlet position.

When the adjusting assembly 2 is powered on, air in the driving head 1 can be exhausted through the exhaust device 3, and the gas in the driving head 1 can be kept stable due to the addition of the exhaust device 3, so that the normal circulation of the gas is guaranteed.

The silencer 33 includes a silencing pot which is communicated with the air outlet. Due to the existence of the silencing cylinder, the noise generated when the exhaust device 3 exhausts is reduced, and the interference of the noise to personnel is eliminated.

The check valve 32 includes a valve body, a spool, and a valve seat, which are located in the valve body, and the spool moves inside the valve body to achieve contact or disconnection of the spool with the valve seat. The check valve 32 cannot be developed by external air against spring force and friction force, so that the check valve 32 has the advantage of no backflow, and the external air cannot flow into the pneumatic single-action driving head closed air path device due to the existence of the check valve 32, so that high-humidity and high-salt air cannot enter the driving head 1.

The driving head 1 comprises a shell 13 and a piston 14, the piston 14 is slidably arranged in the shell 13 and divides the shell 13 into a first cavity 16 and a second cavity 18, a connecting port 11 and an atmosphere inlet 12 are positioned on the shell 13, the connecting port 11 is communicated with the first cavity 16, and the atmosphere inlet 12 is communicated with the second cavity 18.

When the adjusting assembly 2 is powered on, the instrument gas flows into the first cavity 16, the piston 14 is forced to move downwards due to the increase of the gas pressure in the first cavity 16, at the moment, the second cavity 18 enables the gas in the second cavity 18 to be exhausted due to the reduction of the volume, and after the adjusting assembly 2 is powered off, the instrument gas can flow into the second cavity 18 from the first cavity 16, so that the instrument gas in the two cavities can be communicated.

The drive head 1 further comprises an adjustment member 15, the adjustment member 15 being connected to the piston 14 and being adapted to drive the piston 14 to move within the housing 13.

When the adjusting assembly 2 is powered off, the gas in the two cavities reaches a stable state, and in order to realize the rapid circulation of the gas in the two cavities, the adjusting piece 15 is required to apply force to the piston 14 so as to move the piston 14 upwards, thereby realizing the rapid circulation of the gas in the two cavities.

The drive head 1 further comprises an elastic member 17, the elastic member 17 is located in the second chamber 18, and two ends of the elastic member 17 abut against the housing 13 and the piston 14, respectively.

When the adjustment assembly 2 is energized, the elastic member 17 is in a compressed state due to the downward movement of the piston 14, storing an elastic force. When the adjusting assembly 2 is powered off, the piston 14 moves upwards under the action of the adjusting member 15, the elastic member 17 pushes the piston 14 to move towards the first cavity 16 due to the elastic force stored in the previous stage, and at this time, the instrument gas in the first cavity 16 enters the second cavity 18 of the driving head 1 through the adjusting assembly 2, so that the circulation of the gas in the two cavities of the driving head 1 is accelerated.

The elastic member 17 is sleeved on the adjusting member 15. The operation space can be saved by using the structure.

The elastic member 17 is a spring. The use of a spring to store the spring force to urge the piston 14 saves installation and operating costs.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. The closed gas circuit device of the pneumatic single-action driving head comprises a driving head and is characterized by further comprising an adjusting component, wherein the adjusting component is provided with a working port, an exhaust port and a first gas inlet, the driving head is provided with an atmosphere inlet and a connecting port, the working port is connected with the connecting port, the exhaust port is connected with the atmosphere inlet, and the adjusting component is used for adjusting and switching a first state and a second state;

when the air inlet is in the first state, the air outlet is disconnected with the working port and the first air inlet, the working port and the connecting port are communicated;

and in the second state, the first air inlet is disconnected with the working port and the exhaust port, and the connecting port, the working port, the exhaust port and the atmosphere inlet are communicated.

2. The pneumatic single-acting driver head closed gas circuit device according to claim 1, further comprising an exhaust device, wherein the exhaust device comprises a silencer and a check valve, the check valve comprises a second gas inlet and a gas outlet, the second gas inlet is connected to the atmosphere inlet, and the silencer is disposed at the gas outlet.

3. The pneumatic single-acting drive head closed air passage device according to claim 2, wherein the muffler includes a muffling cylinder, the muffling cylinder communicating with the air outlet.

4. The pneumatic single-acting drive head closed air passage device according to claim 2, wherein the check valve comprises a valve body, a valve core and a valve seat, the valve core and the valve seat are positioned in the valve body, and the valve core moves inside the valve body to realize the contact or disconnection of the valve core and the valve seat.

5. The pneumatic single-acting drive head closed air path device as claimed in claim 1, wherein the drive head comprises a housing and a piston, the piston is slidably disposed in the housing and divides the housing into a first chamber and a second chamber, the connection port and the atmosphere inlet are located on the housing, the connection port is communicated with the first chamber, and the atmosphere inlet is communicated with the second chamber.

6. The pneumatic single-acting drive head closed air passage device of claim 5, wherein the drive head further comprises an adjustment member connected to the piston and configured to drive the piston within the housing.

7. The pneumatic single-acting actuator closed air passage device of claim 6, wherein the actuator further comprises an elastic member, the elastic member is located in the second chamber, and both ends of the elastic member respectively abut against the housing and the piston.

8. The pneumatic single-acting drive head closed air passage device of claim 7, wherein the resilient member is sleeved on the adjusting member.

9. The pneumatic single acting actuator closed air passage device of claim 8 wherein said resilient member is a spring.