CN213145424U

CN213145424U - Mechanical interlocking type compressed air pipe automatic water drainage device

Info

Publication number: CN213145424U
Application number: CN202020457639.3U
Authority: CN
Inventors: 李强; 李磊; 郜慧青; 荣乾坤; 郭宏; 杜梦远
Original assignee: Shanxi Lu'an Environmental Energy Development Co ltd Wangzhuang Coal Mine
Current assignee: Shanxi Lu'an Environmental Energy Development Co ltd Wangzhuang Coal Mine
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-05-07
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to an automatic water discharging device of mechanical interlocking type compressed air pipe, which utilizes a pneumatic control system to drive a piston and a pipe hole in a water storage mechanism to move, utilizes the movement of a valve core and the piston to plug and stagger a water discharging hole, utilizes one part of the upper piston and the lower valve core of the water storage mechanism to plug the water discharging hole completely, and the other part can begin to expose the working mechanism of the water discharging hole, realizes the mechanical interlocking between the two parts, and thoroughly avoids the pressure loss of the compressed air pipe caused by the water discharging of the water storage mechanism; the PLC is adopted for control, so that the circuit is simplified, and the stability and the reliability of the circuit are improved; the device utilizes a crank-slider mechanism to drive a piston and a valve core and transfer acting force of a cylinder and a spring; the three-position five-way electromagnetic valve is adopted to switch the extension and the shortening of the cylinder, and the three-position five-way electromagnetic valve can be immediately powered off through a reed switch on the cylinder, so that the three-position five-way electromagnetic valve is in a neutral position, the phenomenon that a coil is heated and burnt out due to the fact that the coil of the electromagnetic valve is electrified for a long time is avoided, and the three-position five-way electromagnetic valve and a machine in a feed switch.

Description

Mechanical interlocking type compressed air pipe automatic water drainage device

Technical Field

The utility model relates to a mine safety technical field, more specifically say, relate to an automatic water discharging device of mechanical interlocking formula pressure tuber pipe.

Background

Pneumatic tools such as an underground air pick, an air pump, an air drill and the like are all driven by wind power in the air compression pipe. After compressed air generated by the pressure fan enters the pressure air pipe, moisture contained in the air is gradually condensed into water drops which are deposited in the pipeline. After a long time, the accumulated water in the pipeline occupies a certain space, so that the sectional area of the gas flowing through the pipeline is reduced, the resistance of the gas flowing is increased, and the head loss of the gas is increased. The pneumatic tool is insufficient in air pressure due to excessive pressure head loss, so that the torque of an air pump, an air pick and an air drill is reduced, and the work of drainage, drilling, tunneling and the like is influenced. Therefore, the influence of the accumulated water of the air compressing pipe and the air leakage of the air compressing pipe on the wind power of the air compressing pipe is the same. Present water storage mechanism needs artifical switching valve to drain, but often because workman's carelessness, does not in time drain, when the water level risees to the compressed air pipe position, can interrupt the process of draining, causes the phenomenon of compressed air pipe ponding once more.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an automatic water discharging device of mechanical interlocking formula compressed air pipe.

The utility model provides a technical scheme that its technical problem adopted is: the mechanical interlocking type compressed air pipe automatic water discharging device is constructed and comprises a water storage mechanism, a water discharging piston mechanism, a pneumatic control mechanism and an air cylinder electric control mechanism;

the water storage mechanism is a cubic container, a water inlet pipe sleeve and a water outlet pipe sleeve which extend inwards are arranged at positions on the side wall of the water storage mechanism, which are close to the top and the bottom, a water inlet pipe is arranged in the water inlet pipe sleeve, the water inlet pipe penetrates through the side wall from the outside of the water storage mechanism and enters the water inlet pipe sleeve, a water inlet is arranged at a first position in the water inlet pipe sleeve, and a water inlet penetrates through the water inlet pipe sleeve and communicates the inside of the water inlet pipe sleeve with the inside of the water storage mechanism; meanwhile, a water outlet communicated with the inside of the water storage mechanism and the inside of the water discharge pipe sleeve is arranged at a second position at the top of the water discharge pipe sleeve, and a communicated water discharge pipe is arranged between a third position at the bottom of the water discharge pipe sleeve and the side wall of the water storage mechanism, so that water in the water storage mechanism is discharged out of the water storage mechanism through the water outlet and the water discharge pipe; a floating ball switch is arranged on the inner side wall of the water storage mechanism, and an upper limit switch and a lower limit switch of the floating ball switch are arranged at the upper limit position and the lower limit position of the water level in the water storage mechanism;

the water drainage piston mechanism comprises a cylinder, a first crank, a push-pull handle, a piston, a second crank, a push-pull rod and a valve core; the first crank comprises a long crank arm and a short crank arm which are connected through a rotating shaft, a piston rod of the air cylinder is connected with the long crank arm of the first crank through a connecting pin, one end of the short crank arm is connected with the long crank arm, a protruding cylindrical sliding block is arranged at the other end of the short crank arm, the push-pull handle is of a rectangular structure with the middle hollowed out as a sliding hole, and the sliding block extends into the sliding hole of the push-pull handle and moves relative to the sliding hole; a piston rod provided with a piston, wherein one end of the piston rod penetrates into the water storage mechanism to be connected with the piston, and the other end of the piston rod is fixedly connected to the middle part of the push-pull handle; a spring fixing seat is arranged on a rod body of the piston rod positioned in the water storage mechanism, a spring is arranged between the spring fixing seat and the inner wall of the water storage mechanism, and the spring is wound on the rod body of the piston rod arranged between the spring fixing seat and the inner wall of the water storage mechanism; the section of the piston is matched with the section of the water inlet pipe, so that the piston does reciprocating motion relative to the water inlet pipe sleeve under the action of the piston rod; the push-pull rod is connected with the valve core, and the section of the valve core is matched with the section of the water drain pipe, so that the valve core does reciprocating motion relative to the water drain pipe sleeve under the action of the push-pull rod; the valve core is internally provided with a pipe hole, the two ends of which are vertically turned upwards and downwards respectively and penetrate through the outside of the valve core, and when the inlet of the pipe hole is superposed with the position of the water outlet, the outlet of the pipe hole is also moved to the position superposed with the pipe orifice of the water outlet pipe; the piston rod and the push-pull rod are both provided with a sliding block, and the two sliding blocks are connected with a second crank; the second crank comprises a first crank arm and a second crank arm, and the first crank arm and the second crank arm are of rectangular structures with the middle parts hollowed out into sliding holes; a rotating shaft penetrates between the two crank arms so as to enable the second crank to rotate around the rotating shaft; the piston rod and the sliding block on the push-pull rod respectively extend into the sliding holes of the first crank arm and the second crank arm;

the pneumatic control mechanism comprises an electromagnetic valve which is respectively connected to a rod cavity and a rodless cavity of the cylinder through air pipes so as to control the extension and compression of the cylinder;

the cylinder electric control mechanism comprises a PLC controller, contacts of a button, a floating ball switch and a reed switch are respectively connected with input ports of the PLC controller, and then sequentially form a closed loop with a 24V direct-current power supply and a com end; the output port is connected with a coil of the electromagnetic valve, and forms a closed loop with a 36V alternating current power supply and a com end;

the power-on condition of a coil connected with the PLC controller is controlled through the floating ball switch, the button and the reed switch, so that the working condition of the electromagnetic valve is changed, the expansion of the electromagnetic valve control cylinder drives the piston and the valve core to move, and automatic water drainage in the water storage mechanism is realized.

In the automatic water discharging device of mechanical interlocking compressed air pipe, the solenoid valve is a three-position five-way valve, two coils are arranged on the left and right sides of the solenoid valve, and the solenoid valve is connected to the output port of the PLC controller.

In the mechanical interlocking type compressed air pipe automatic water drainage device of the utility model, the two ends of the air cylinder are respectively provided with the reed switch, and the edge of the air cylinder piston is provided with the magnetic ring; the fixed position of reed switch sets up in: the cylinder is extended to a position where the cylinder piston is opposite to the cylinder wall when the piston is just completely staggered with the water inlet, and the cylinder is shortened to a position where the cylinder piston is opposite to the cylinder wall when the water outlet and the pipeline inlet are completely overlapped.

In the mechanical interlocking type automatic water drain device for the compressed air pipe, the contact switch of the reed switch is also connected to the input port of the PLC controller, and sequentially forms a closed loop with the 24V direct-current power supply and the com end.

Mechanical interlocking formula compressed air pipe automatic water discharging device in, two blast pipes and an intake pipe are connected respectively to the port of tribit five-way valve, insert a back pressure valve in two blast pipes respectively for the cylinder can stop at once when keeping the stability when the cylinder moves and cutting off the power supply.

Different from the prior art, the utility model provides an automatic water discharging device of mechanical interlocking formula forced draft pipe utilizes pneumatic control system to drive the piston and the case that set up in water storage mechanism and remove, utilizes the removal of piston and case to realize the shutoff and the switch-on of water storage mechanism income (putting) mouth of a river, ingenious application gas, the principle of liquid control system component; the mechanical interlocking between the upper piston and the lower valve core of the water storage mechanism is realized by utilizing the working mechanism that one of the upper piston and the lower valve core of the water storage mechanism completely blocks the water inlet (water outlet) and the other one can start to expose the water inlet (water outlet), thereby thoroughly avoiding the pressure loss of the air pipe caused by the water discharge of the water storage mechanism; because the number of position switch type electrical appliances is large and the circuit is complex, the device adopts PLC control, simplifies the circuit and improves the stability and reliability of the circuit; the device skillfully utilizes the crank-slider mechanism to drive the piston and the valve core and transfer the acting force of the cylinder and the spring; the three-position five-way electromagnetic valve is adopted to switch the extension and the shortening of the cylinder, and the three-position five-way electromagnetic valve can be immediately powered off through a reed switch on the cylinder to be positioned at a middle position, so that the phenomenon that a coil is heated and burnt out due to the fact that the coil of the electromagnetic valve is electrified for a long time is avoided, and the three-position five-way electromagnetic valve and a machine in a feed switch keep different curves and the same work.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic structural view of an automatic water discharging device of a mechanical interlocking compressed air pipe provided by the utility model.

Fig. 2 is a schematic structural view of a pneumatic control mechanism of an automatic water discharging device of a mechanical interlocking compressed air pipe provided by the utility model.

Fig. 3 is an electrical connection schematic diagram of an air cylinder electric control mechanism of the mechanical interlocking type compressed air pipe automatic water discharging device provided by the utility model.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the mechanical interlocking type automatic water discharging device for the compressed air pipe of the present invention comprises a water storage mechanism 1, a water discharging piston mechanism 2, a pneumatic control mechanism 3 and an air cylinder electric control mechanism 4;

the water storage mechanism 1 is a cubic container, a water inlet pipe sleeve 11 and a water outlet pipe sleeve 12 which extend inwards are arranged at positions on the side wall of the water storage mechanism 1 close to the top and the bottom, a water inlet pipe 13 is arranged in the water inlet pipe sleeve 11, the water inlet pipe 13 penetrates through the side wall from the outside of the water storage mechanism and enters the water inlet pipe sleeve 11, a water inlet 14 is arranged at a first position in the water inlet pipe sleeve 11, and the water inlet 14 penetrates through the water inlet pipe sleeve 11 to communicate the inside of the water inlet pipe sleeve 11 with the inside of the water storage mechanism 1; meanwhile, a water outlet 15 communicated with the inside of the water storage mechanism 1 and the inside of the water discharge pipe sleeve 12 is arranged at a second position at the top of the water discharge pipe sleeve 12, and a communicated water discharge pipe 16 is arranged between a third position at the bottom of the water discharge pipe sleeve 12 and the side wall of the water storage mechanism, so that water in the water storage mechanism is discharged out of the water storage mechanism 1 through the water outlet 15 and the water discharge pipe 16; a float switch 17 is arranged on the inner side wall of the water storage mechanism 1, and an upper limit switch and a lower limit switch of the float switch are arranged at the upper limit position and the lower limit position of the water level in the water storage mechanism 1;

the water drainage piston mechanism 2 comprises a cylinder 21, a first crank 22, a push-pull handle 23, a piston 24, a second crank 25, a push-pull rod 26 and a valve core 27; the first crank 22 comprises a long crank arm 221 and a short crank arm 222, the long crank arm 221 and the short crank arm 222 penetrate through the rotating shaft between the two arms, the piston rod 211 of the cylinder 21 is connected with the long crank arm 221 of the first crank through a connecting pin, one end of the short crank arm 222 is connected with the long crank arm 221, the other end of the short crank arm is provided with a protruding cylindrical sliding block 2221, the push-pull handle 23 is of a rectangular structure, the middle of the push-pull handle is hollowed into the sliding hole 231, and the cylindrical sliding block 2221 extends into the sliding hole 231 of the push-pull handle 23 and moves; a piston rod 241 provided with a piston 24, one end of which penetrates into the water storage mechanism 1 and is connected with the piston 24, and the other end of which is fixedly connected with the middle part of the push-pull handle 23; a spring fixing seat 28 is arranged on the rod body of the piston rod 241 positioned in the water storage mechanism 1, a spring 281 is arranged between the spring fixing seat 28 and the inner wall of the water storage mechanism 1, and the spring 281 is wound on the rod body of the piston rod 241 between the spring fixing seat 28 and the inner wall of the water storage mechanism 1; the section of the piston 24 is matched with the section of the water inlet pipe sleeve 11, so that the piston 24 reciprocates relative to the water inlet pipe sleeve 11 under the action of the piston rod 241; the push-pull rod 26 is connected with the valve core 27, the section of the valve core 27 is matched with the cross section of the drain pipe sleeve 12, so that the valve core 27 reciprocates relative to the drain pipe sleeve 12 under the action of the push-pull rod 26; the valve core 27 is internally provided with a pipe hole 271, two ends of the pipe hole 271 vertically turn upwards and downwards respectively and penetrate through the outside of the valve core, the pipeline is arranged in a Z shape, the inlet of the pipe hole 271 is arranged on the upper surface of the valve core 27, the outlet of the pipeline is arranged on the lower surface of the valve core 27, and when the inlet of the pipeline moves to a position overlapped with the water outlet 15, the outlet of the pipe hole is overlapped with the pipe orifice of the water outlet pipe 16; the piston rod 241 and the push-pull rod 26 are both provided with a slide block 2411 and a slide block 261, and the two slide blocks are connected with a second crank 25; the second crank 25 comprises a first crank arm 251 and a second crank arm 252, which are rectangular structures with hollow-out sliding

holes

2511 and 2521 in the middle; a rotating shaft is arranged between the first crank arm 251 and the second crank arm 252, the crank 25 can rotate around the rotating shaft, and the

sliding blocks

2411 and 261 on the piston rod and the push-pull rod respectively extend into the

sliding holes

2511 and 2521 of the first crank arm and the second crank arm;

the pneumatic control mechanism 3 comprises an electromagnetic valve 31 which is respectively connected to a rod cavity 211 and a rodless cavity 212 of the cylinder 21 through air pipes 32 and 33 so as to control the extension and compression of the cylinder 21;

the cylinder electric control mechanism 4 comprises a PLC (programmable logic controller) 41, and contacts of a control button, a float switch 17 and two

reed switches

213 and 214 are respectively connected with each input port of the PLC, and then sequentially form a closed loop with a 24V direct-current power supply and a com end; the output port is connected with a coil of the electromagnetic valve, and forms a closed loop with a 36V alternating current power supply and a com end;

the energizing condition of a coil connected with the PLC 41 is controlled by a float switch, a reed switch and a button, so that the working condition of the electromagnetic valve 31 is changed, the expansion and contraction of the cylinder 21 are controlled by the electromagnetic valve 31, the piston 24 and the valve core 27 are driven to move, and the plugging and the connection of a water inlet (a water inlet) of the water storage mechanism are realized.

In the automatic water discharging device of mechanical interlocking compressed air pipe, the solenoid valve 31 is a three-position five-way valve, and two coils are arranged on the left and right sides and are connected to the output port of the PLC controller 41.

In the mechanical interlocking type compressed air pipe automatic water discharging device of the utility model, two ends of the air cylinder 21 are respectively provided with the

reed switches

213 and 214, and the edge of the air cylinder piston 215 is provided with the magnetic ring 216; the fixed position of reed switch sets up in: the cylinder 21 is extended to a position where the cylinder piston 215 opposes the cylinder wall immediately after the piston 24 is completely displaced from the water inlet 14, and the cylinder 21 is shortened to a position where the cylinder piston 215 opposes the cylinder wall when the discharge port 15 and the valve body 27 completely overlap.

In the mechanical interlocking type automatic water discharging device for the compressed air pipe, the contacts of the

reed switches

213 and 214 are also connected to the input port of the PLC controller 41, and sequentially form a closed loop with the 24V dc power supply and the com end.

Mechanical interlocking formula compressed air pipe automatic water discharging device in, two blast pipes and an intake pipe are connected respectively to the port of tribit five-way valve, insert a back pressure valve 32 in two blast pipes respectively for the cylinder can stop at once when keeping the stability when the cylinder moves and cutting off the power supply.

The pneumatic control mechanism 3 is constructed as shown in fig. 2, in which a permanent magnetic ring is attached to a piston 215 of a cylinder, and reed switches are fixed to housings at predetermined positions on the upper and lower portions of a cylinder 21 by steel bands, respectively. The rodless cavity 212 and the rod cavity 211 are respectively connected with two air pipes, and the other ends of the two air pipes are respectively connected to a working port of the three-position five-way valve. Two exhaust pipes and an air inlet pipe are respectively connected below the three-position five-way valve.

The structure of the cylinder electric control mechanism 4 is shown in fig. 3. In FIG. 3, FR is a thermistor and FU is a fuse. The three-position five-way valve is provided with coils YV1 and YV2 on the left and right sides, control buttons SB2 and SB3 corresponding to the coils YV1 and YV2 are arranged inside the three-position five-way valve respectively, and the coils YV1 and YV2 are electrified by closing contact switches SB2 and SB3, so that the expansion and contraction of the air cylinder 21 are further controlled. Specifically, the button SB2 or the lower limit normally-closed point SQ2 of the float switch 17 is pressed to be disconnected, the coil YV1 is electrified, so that the air pipe inflates the rodless cavity 212 through the three-position five-way valve, the rod cavity 211 exhausts air outwards, and the air cylinder 21 extends; when the piston 215 of the driving cylinder is close to the position of the reed switch 213, the contact SQ3 of the reed switch 213 is closed, the coil YV1 is powered off through logic control, the three-position five-way valve stops moving to the rodless cavity 212, and the cylinder 21 stops extending; pressing the button SB3 or closing the upper limit normal open point SQ1 of the float switch 17, electrifying the coil YV2, inflating the air pipe into the rod cavity 211 through the three-position five-way valve, exhausting the air out of the rodless cavity 212 and shortening the air cylinder 21; when the piston 215 of the cylinder is shortened to a position close to the reed switch 214, the contact switch SQ4 of the reed switch 214 is closed, the coil YV2 is de-energized through logic control, the three-position five-way valve stops charging the rod cavity 212, and the cylinder 21 stops shortening. In fig. 3, a contact switch SB1 is a stop button of the electromagnetic valve 31, SQ1 and SQ2 are an upper limit switch and a lower limit switch of the float switch 17, SB2 and SB3 respectively control the energization of the coils YV1 and YV2 through a PLC controller, SQ1 and SQ2 respectively are upper limit contacts and lower limit contacts of the float switch, and are arranged in the water storage mechanism 1, when the water level in the water storage mechanism 1 rises, the float switch 17 rises with the water level, so that a normally open point of the upper limit switch SQ1 is closed, and the internal logic control of the PLC controller 41 is used to electrify the coil YV2 on the left side of the electromagnetic valve 31, so that an air pipe inflates the rod-containing cavity 211 through the electromagnetic valve 31, and simultaneously exhausts the rodless cavity 212, so that the air cylinder 21 shortens; when the water level drops, the float switch 17 drops along with the water level, the normally closed point of the lower limit switch SQ2 is disconnected, the coil YV2 on the right side of the electromagnetic valve 31 is electrified through the internal logic control of the PLC 41, the air pipe is inflated into the rodless cavity 212 through the electromagnetic valve 31, the rod cavity 211 of the air cylinder is exhausted, and the air cylinder 21 is extended. SQ3 and SQ4 are the contacts of the

reed switches

213 and 214 respectively provided in the cylinder 21, and in the present embodiment, the reed switch 213 is provided in the rod chamber 211 of the cylinder 21, and the reed switch 214 is provided in the rodless chamber 212 of the cylinder 21, and the positions of the arrangement are as described above. When the cylinder 21 shortens, the cylinder piston 215 moves to the reed switch 214 in the rodless cavity 212, when the piston 24 blocks the water inlet 14, and the pipe hole inlet and the pipe hole outlet of the pipeline 271 arranged in the valve core 27 are respectively aligned with the pipe orifices of the water outlet 15 and the water outlet 16, the cylinder piston 215 moves to the position aligned with the reed switch 214, and the contact SQ4 of the reed switch 214 closes the cylinder 21 to stop shortening; when the cylinder 21 extends, the cylinder piston 215 moves towards the reed switch 213 in the rod cavity 211, when the piston 24 is staggered with the water inlet 14, the valve core 27 moves towards the direction away from the right side wall of the water storage mechanism 1 under the pulling of the push-pull rod 26, and the pipe inlet and the pipe outlet of the pipe hole 271 arranged inside are staggered with the pipe orifices of the water outlet 15 and the water outlet 16 respectively, the cylinder piston 215 is blocked by the valve core 27, the cylinder piston 215 moves to the position aligned with the reed switch 213, and the contact switch SQ3 of the reed switch 213 closes the cylinder 21 to stop extending. The logical control relationship of each contact and the connection relationship with the PLC controller 41 are shown in table 1:

in the use process, the state shown in fig. 1 is that the cylinder 21 extends to the maximum distance allowed by the reed switch with rod cavity 213, at this time, the piston 24 is just completely staggered with the water inlet 14, and the accumulated water in the air compression pipe flows into the water storage mechanism 1. The pipe 271 of the valve core 27 is completely blocked to prevent the leakage of air in the air pressing pipe. When the water level in the water storage mechanism 1 rises to a certain position, the upper limit normally open contact SQ1 of the float switch 17 is closed. At the moment, the PLC 41 enables the left coil YV2 of the three-position five-way electromagnetic valve to be electrified, the air cylinder 21 has a rod cavity 211 for air intake and a rodless cavity 212 for air exhaust, the air cylinder 21 is shortened, and the first crank 22 hinged with the air cylinder is pulled to rotate clockwise, namely, the long arm of the crank rotates downwards while the short arm of the crank rotates upwards. When the short crank arm 222 is rotated upward, the slider 2221 at the end thereof is horizontally spaced from the fixed rotation shaft, and the push-pull handle 23 is pushed leftward. At this time, the spring 281 is in a compressed state and has a spring force to the left, so that the spring force of the spring 281 plus the thrust of the piston rod 241 is greater than the thrust of the compressed air in the water inlet pipe 13 to the 24 piston, so that the piston rod 241 moves to the left, and then the 24 piston is pushed to move to the left, and the water inlet 14 is completely blocked. When the piston rod 241 moves to the left, the slider 2411 thereon pushes the second crank 25 to rotate clockwise, and the slide hole at the lower part of the second crank 25 pushes the push-pull rod 26 to move to the right through the slider 261, and then pushes the valve core 27 to move to the right. When the upper piston 24 completely blocks the water inlet 14, the pipe hole inlet and the pipe hole outlet arranged inside the valve core 27 are respectively aligned with the pipe openings of the water outlet 15 and the water outlet 16, so that the air leakage in the air pressing pipe is completely avoided, and meanwhile, the accumulated water inside the water storage mechanism 1 can be discharged from the water outlet 16. At this time, the cylinder piston 215 moves to the position of the lower reed switch 214, the normally open contact SQ4 is closed, and the PLC controller 41 deenergizes the left coil YV2 to stop shortening the cylinder 21.

When the water in the water storage mechanism 1 falls to a certain position, the lower limit normally closed contact SQ2 of the float switch 17 is opened, and the cylinder 21 starts to extend. The following sequence of actions and the working principle are exactly opposite to those of the shortened cylinder 21, and are not described in detail herein.

While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides an automatic water discharging device of mechanical interlocking type pressure tuber pipe which characterized in that includes:

the water storage mechanism, the water discharge piston mechanism, the pneumatic control mechanism and the air cylinder electric control mechanism are arranged in the cylinder body;

the cylinder electric control mechanism comprises a PLC (programmable logic controller), a solenoid valve switch button and a contact switch of a float switch are respectively connected with an input port of the PLC, and then sequentially form a closed loop with a 24V direct-current power supply and a com end; the output port is connected with a coil of the electromagnetic valve, and forms a closed loop with a 36V alternating current power supply and a com end;

through float switch, button and reed switch, the circular telegram condition of the coil of connecting the PLC controller is changed, and then changes the behavior of solenoid valve, through the flexible of solenoid valve control cylinder, drives the removal of piston and case, realizes the inside automatic of water storage mechanism and drains.

2. The mechanical interlocking type automatic water discharging device of a compressed air pipe as claimed in claim 1, wherein the electromagnetic valve is a three-position five-way valve, and left and right coils are arranged and connected to an output port of the PLC controller.

3. The mechanical interlocking type compressed air pipe automatic water discharging device as claimed in claim 1, wherein reed switches are respectively arranged outside two cavities of the cylinder, and a magnetic ring is arranged at the edge of a piston of the cylinder; the fixed position of reed switch sets up in: the cylinder is extended to a position where the cylinder piston is opposed to the cylinder wall when the piston is just completely misaligned with the water inlet, and the cylinder is shortened to a position where the cylinder piston is opposed to the cylinder wall when the water discharge hole and the pipe hole inlet are completely overlapped.

4. The mechanical interlocking compressed air pipe automatic water discharging device as claimed in claim 3, wherein a contact switch of the reed switch is also connected to an input port of the PLC controller and forms a closed loop with the 24V direct current power supply and the com end in sequence.

5. The automatic water discharge device of claim 1, wherein the ports of the three-position five-way valve are respectively connected with two exhaust pipes and an intake pipe, and a backpressure valve is respectively connected to the two exhaust pipes for keeping the cylinder stable during operation and immediately stopping the cylinder during power failure.