CN212641646U - Air pressure button device of drain valve - Google Patents

Abstract

The utility model discloses a drain valve air pressure button device, which is used for starting drain valve drainage, comprising an air pump, an air pressure button, a button seat, a push rod, a cavity is arranged on the button seat, a through hole is arranged at the bottom of the cavity, the lower part of the push rod extends out of the through hole and is used for pushing against a starting key of the drain valve, an elastic part is arranged between the upper part of the push rod and the bottom of the cavity, the air pressure button is arranged in the cavity and is positioned at the upper part of the push rod, the air pressure button comprises a telescopic air bag, a pressure release part and a push part, the upper part of the telescopic air bag is provided with an air inlet hole, the air inlet hole is communicated with the air pump through an air pipe, the bottom of the telescopic air bag is provided with a leakage hole, the pressure release part is blocked on the leakage hole, the push part is blocked on the pressure release part, deflating the telescopic air bag. The utility model discloses a drain valve drainage is opened to atmospheric pressure, need not manually press, and safety and sanitation easily realize the electronization.

Description

Air pressure button device of drain valve

Technical Field

The utility model relates to a button device, in particular to drain valve atmospheric pressure button device of opening of drain valve.

Background

In real life, in order to start the drainage valve in the toilet water tank to drain, install the manually drain valve button device who presses on the toilet water tank apron usually, this drain valve button device adopts mechanical drive mechanism, including button, key seat, ejector pin, button, ejector pin ann device are on the key seat, and the manual button of pressing drives and is concertina movement or rotation on the key seat at the ejector pin to the transmission realizes the drain valve drainage to the rising of driving the drain valve inner core pipe on the drain valve.

Along with the improvement of living standard of people, people pay more and more attention to the health, especially receive the influence of new crown epidemic situation, people hope to open the drain valve drainage in the closestool water tank under the non-contact condition also, and not press the button to realize with the hand instead of pressing.

Therefore, the utility model relates to a press key device for opening drainage by a pneumatic pressing mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drain valve atmospheric pressure button device, this drain valve atmospheric pressure button device realize people through pneumatic mode and open the drain valve under the condition of non-contact button, simple structure, dependable performance.

To achieve the above object, the solution of the present invention is:

the utility model provides a drain valve atmospheric pressure button device for starting drain valve drainage, this button device includes air pump, atmospheric pressure button, button seat, ejector pin, the button seat on be equipped with the cavity, the bottom of cavity is equipped with the through-hole and supplies the ejector pin to pass, the lower part of ejector pin stretches out the through-hole and is used for pushing away the start key of supporting the drain valve, the upper portion of ejector pin is arranged in the cavity, be equipped with the elastic component between the upper portion of ejector pin and the bottom of cavity, the atmospheric pressure button arrange in the cavity and be located the top of the upper portion of ejector pin, the atmospheric pressure button includes flexible gasbag, pressure release spare, push away the piece, the upper portion of flexible gasbag is equipped with the inlet port, the inlet port is linked together through trachea and air pump, the bottom of flexible gasbag is equipped with disappointing hole, pressure release spare shutoff on disappointing hole, push away piece joint on pressure release spare and, the counterforce of the limit part abutting against the bottom of the cavity pushes the pressure relief piece to plug the air release hole, and the telescopic air bag is released.

Preferably, the upper part of the cavity is provided with an opening, the opening is provided with a cover plate, the upper part of the telescopic air bag is fixed on the cover plate, and the vent hole of the telescopic air bag is arranged on the cover plate.

Preferably, the elastic part adopts a spring, and the telescopic air bag adopts a silica gel air bag.

Preferably, the pressure release spare include spliced pole, shutoff dish, stop, the spliced pole diameter is less than the hole of disappointing, the diameter of shutoff dish is greater than the hole of disappointing, and the shutoff dish sets up the upper end of spliced pole, the radial protruding establishing on the spliced pole of stop and the shutoff dish between keep the clearance of disappointing, the clearance of disappointing is greater than the wall thickness of the bottom of flexible gasbag, when the pressure release spare sets up on the hole of disappointing, the inboard of the bottom of flexible gasbag is arranged in to the shutoff dish, the outside of the bottom of flexible gasbag is arranged in to the stop, the spliced pole is arranged in the hole of disappointing in the part between shutoff dish and the stop, the lower extreme at the spliced pole of push away a joint.

Preferably, the stop is provided with an air leakage channel.

Preferably, the elastic clamp is formed at the lower end of the connecting column and comprises a radial annular flange formed at the lower end of the connecting column, an abdicating sectional groove is axially formed at the lower end of the connecting column, a clamping hole is formed in the pushing piece, the radial annular flange penetrates through the clamping hole, the lower end of the connecting column is elastically deformed and contracted through the abdicating sectional groove, and the pushing piece is clamped between the annular flange at the lower end of the connecting column and the stopper through the clamping hole.

Preferably, the air pump comprises a half-exhaust pump and a full-exhaust pump which have the same structure, the telescopic air bags of the air pressure key comprise two half-row telescopic air bags and a full-row telescopic air bag which have the same structure, the pressure relief piece comprises two half-drainage pressing pieces and a full-drainage pressing piece which have the same structure, the pushing piece comprises a half-row pushing piece and a full-row pushing piece, the limiting piece of the pushing piece comprises a half-row limiting piece and a full-row limiting piece, the half-row limiting piece and the full-row limiting piece are respectively convexly arranged on the bottom surfaces of the half-row pushing piece and the full-row pushing piece, the half-row limit pieces are higher than the full-row limit pieces, the half-exhaust pump, the half-row telescopic air bags, the half-drainage pressing pieces and the half-row pushing pieces are combined together to form a half-exhaust air pressure button of the drain valve, the half-row limit pieces and the bottom of the cavity are abutted against the reaction force to block the air leakage holes by the half-drainage pressing pieces, and the half-row telescopic air bags are subjected to half-row air leakage; the full-exhaust pump, the full-exhaust telescopic air bag, the full-drainage pressing piece and the full-exhaust pushing piece are combined together to form a full-exhaust pressing button of the drain valve, the full-exhaust limiting piece and the bottom of the cavity are abutted against reaction force to push the full-drainage pressing piece to plug the air release hole, and the full-exhaust telescopic air bag is subjected to full-exhaust air release.

Preferably, the half-exhaust pressure button and the full-exhaust pressure button are respectively arranged in the cavity from left to right, and the half-row pushing piece and the full-row pushing piece are respectively arranged on the upper part of the ejector rod from left to right to respectively push the ejector rod.

Preferably, the half-row pushing piece and the upper part of the ejector rod are formed into a whole, and the full-row pushing piece and the upper part of the ejector rod are formed into a whole.

The utility model has the working principle that the air pump inflates the telescopic air bag through the air pipe and the air inlet hole, the telescopic air bag expands to push the pressure relief piece to seal the air release hole, the telescopic air bag continues to expand under the action of air pressure, the pressure relief piece drives the pressure relief piece to move downwards to push against the upper part of the ejector rod, the elastic piece between the upper part of the ejector rod and the bottom of the cavity is compressed, the ejector rod extends out of the through hole at the bottom of the cavity, and the lower part of the ejector rod pushes against the starting key of the drain valve to start the drain valve to; produce reaction force when pushing away the piece and moving down the bottom conflict of locating part and cavity to promote the joint and open the shutoff to the disappointing hole at the pressure release piece that pushes away on the piece, flexible gasbag loses heart from disappointing hole, and the upper portion of ejector pin loses the thrust that pushes away the piece, and the elastic component upwards moves under the elastic force effect and resets and drive the ejector pin rebound, and the upper portion of ejector pin supports to push away a promotion flexible gasbag shrink reconversion.

After the technical scheme is adopted, the beneficial effects of the utility model reside in that: aerify the power that provides the drain valve and open for flexible gasbag through the air pump, compare the transmission and provide the power that the drain valve opened through the manual button of pressing, the utility model discloses realize the electronization more easily, for example set up the electronic inductor on the closestool, the electronic inductor is connected with the air pump electricity, through opening and closing of electronic inductor control air pump, people need not press the button, just can open drain valve drainage, safety and sanitation.

Drawings

Fig. 1 is a perspective view of the pneumatic button device of the drain valve and the drain valve of the present invention;

FIG. 2 is a schematic sectional view of a pneumatic button device of the drain valve of the present invention;

fig. 3 is a schematic sectional view of the drain valve full drainage starting device of the pneumatic button device for the drain valve of the present invention;

fig. 4 is a schematic sectional view of a full-exhaust press button of the pneumatic press button device of the drain valve of the present invention;

FIG. 5 is an enlarged view of a portion of section A of FIG. 4;

FIG. 6 is an enlarged view of a portion B of FIG. 3 in section;

fig. 7 is a schematic sectional view of the drain valve of the pneumatic button device for drain valve according to the present invention after the completion of the drain;

FIG. 8 is an enlarged view of a portion C of FIG. 7 in section;

fig. 9 is a schematic sectional view of a half-discharge water discharge of the water discharge valve starting air pressure button device of the present invention;

fig. 10 is a schematic sectional view of a half-venting press key of the venting valve press key device of the present invention;

FIG. 11 is an enlarged view in partial section of D in FIG. 10;

FIG. 12 is an enlarged view of E in FIG. 9, partially in section;

fig. 13 is a schematic sectional view showing the completion of the half-discharge of the drain valve of the pneumatic button device for the drain valve of the present invention;

fig. 14 is an enlarged view of a portion F of fig. 13 in section.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the utility model provides a drain valve air pressure button device for starting the drain valve to drain, the button device comprises an air pump 1, an air pressure button 7, a button seat 5 and a push rod 6, the button seat 5 is provided with a cavity 51, the bottom 52 of the cavity 51 is provided with a through hole 53 for the push rod 6 to pass through, the lower part 62 of the push rod 6 extends out of the through hole 53 for pushing against the start key of the drain valve, the upper part 61 of the push rod 6 is arranged in the cavity 51, the elastic member 63 is arranged between the upper part 62 of the push rod 6 and the bottom 52 of the cavity 51, the elastic member 63 can be a spring, a spring sheet and the like, the air pressure button 7 is arranged in the cavity 51 and above the upper part 61 of the push rod 6, the air pressure button 7 comprises a telescopic air bag 72, a pressure relief member 73 and a push member 74, the telescopic air bag 72 is a, the inlet hole 71 is linked together through trachea 10 and air pump 1, and the bottom 77 of flexible gasbag 72 is equipped with disappointing hole 75, pressure release piece 73 shutoff on disappointing hole 75, push away 74 joint on pressure release piece 73 and lie in the upper portion 61 top of ejector pin 6, push away 74 be used for promoting ejector pin 6, be equipped with locating part 76 on pushing away 74, the reaction force that locating part 76 and the bottom 52 of cavity 51 contradict pushes away the shutoff of pressure release piece 73 to disappointing hole 75, loses heart flexible gasbag 72.

As shown in fig. 2, an opening 54 is formed in the upper portion of the cavity 51, so that the air bag 72, the pressure relief member 73, the pushing member 74, the push rod 6 and the elastic member 63 can be conveniently placed in the cavity 51, a cover plate 55 is arranged on the opening, the upper portion of the air bag 72 is fixed on the cover plate 55, and a vent hole 71 of the air bag 72 is formed in the cover plate 55.

As shown in fig. 2, 4-5, and 10-11, the pressure relief piece 73 includes a connecting column 731, a blocking disc 732, and a stopper 733, the diameter of the connecting column 731 is smaller than that of the relief hole 75, the diameter of the blocking disc 732 is larger than that of the relief hole 75, the blocking disc 732 is disposed at the upper end of the connecting column 731, the stopper 733 is radially protruded on the connecting column 731 and maintains a relief gap 734 with the blocking disc 732, the relief gap 734 is larger than the wall thickness of the bottom 77 of the telescopic airbag 72, when the pressure relief piece 73 is disposed on the relief hole 75, the blocking disc 732 is disposed at the inner side of the bottom 77 of the telescopic airbag 72, the stopper 733 is disposed at the outer side of the bottom 77 of the telescopic airbag 72, in order to avoid the gas overflow of the relief hole 735 caused by the fit of the bottom 77 of the telescopic airbag 72 and the stopper 733, a passage (as shown in fig. 5) is disposed on the stopper 733, the portion of the connecting column 731 between the blocking disc 732 and the stopper, the pushing element 74 is clamped at the lower end of the connecting column 731.

As shown in fig. 2, 4-5, and 10-11, the lower end of the connecting column 731 is formed with an elastic clip, the elastic clip includes a radial annular flange 736 formed at the lower end of the connecting column 731, an abdicating sectional slot 737 is axially formed at the lower end of the connecting column 731, a clamping hole 742 is formed on the pushing element 74, the radial annular flange 735 passes through the clamping hole 742, the lower end of the connecting column 731 is elastically deformed and contracted through the abdicating sectional slot 736, and the pushing element 74 is clamped between the annular flange 735 at the lower end of the connecting column 731 and the stopper 733 through the clamping hole 742.

As shown in fig. 1-2, 4-5, and 10-11, the air pump 1 includes a half-row air pump 18 and a full-row air pump 19, the air bag 72 of the air button 7 includes two half-row air bags 728 and a full-row air bag 729, the pressure releasing member 73 of the air button 7 includes two half-row pressure releasing members 738 and a full-row pressure releasing member 739, the pushing member 74 of the air button 7 includes a half-row pushing member 748 and a full-row pushing member 749, the limiting member 76 of the pushing member 74 includes a half-row limiting member 768 and a full-row limiting member 769, the half-row limiting member 768 and the full-row limiting member 769 are respectively protruded on the bottom surfaces of the half-row pushing member and the full-row pushing member 749, wherein the height of the half-row limiting member 768 is greater than the height of the full-row limiting member 769, the half-row air pump 18, the half-row air bags 728, the half-row pressure releasing member 738 and the half-row pushing member are combined together to form a half-row air pressure releasing, the half-row limiting pieces 768 abut against the bottom 52 of the cavity 51, and the counterforce half-discharge pressing piece 738 is abutted to block the air release hole 75, so that the half-row telescopic air bag 728 is subjected to half-row air release; the full-exhaust pump 19, the full-row telescopic air bag 729, the full-drainage pressing piece 739 and the full-row pushing piece 749 are combined together to form a full-exhaust pressing button 79 of the drain valve, the full-row limiting piece 769 pushes the full-drainage pressing piece 739 to plug the air release hole 75 by resisting and reacting force with the bottom 52 of the cavity 51, and the full-row telescopic air bag 729 is subjected to full-exhaust air release.

As shown in fig. 2, 4 and 10, the half-exhaust pressure button 78 and the full-exhaust pressure button 79 are respectively disposed in the cavity 51 at left and right, and the half-row pusher 748 and the full-row pusher 749 are respectively disposed at left and right on the upper portion 61 of the top bar 6 to respectively push the top bar 6.

As shown in fig. 2, 4-5, and 10-11, the half-row pusher 748 is formed integrally with the upper portion 61 of the lift pin 6, and the full-row pusher 749 is formed integrally with the upper portion 61 of the lift pin 6.

As shown in fig. 1 to 14, the application of the above-mentioned pneumatic button device for a drain valve in a drain valve is disclosed, which is a double-drain valve 4, comprising a start key 41, a drain valve body 42, a half-drain limiting device 43, a full-drain limiting device 44, an inner core tube 45, a lever 46 and a water sealing sheet 47, wherein the half-drain limiting device 43 and the full-drain limiting device 44 are arranged in the drain valve body 42, the half-drain limiting device 43 in the drain valve body 42 is higher than the full-drain limiting device 44, the half-drain limiting device 43 comprises a half-drain float 431, a half-drain rotating frame 432, a half-drain hook 433 and an adjusting rod 434, the adjusting rod 434 is fixed in the drain valve body 42, the half-drain float 431 is fixed on the adjusting rod 434, one side of the half-drain rotating frame 432 is rotatably fixed on the adjusting rod 434, the other side of the half-drain rotating frame 432 is provided with a half-drain hook 433, the full-, A full-discharge hook 443, a full-discharge rotating frame 442 is rotationally fixed in the drain valve body 42, one side of the full-discharge rotating frame 442 is rotationally provided with a full-discharge floating barrel 431, the other side of the full-discharge rotating frame 442 is provided with a full-discharge hook 443, an inner core tube 45 penetrates through the drain valve body 42, the middle parts of the inner core tube 45 respectively penetrate through the central holes of the half-discharge rotating frame 432 and the full-discharge rotating frame 442, the middle part of the inner core tube 45 forms a half-discharge clamping point 451 and a full-discharge clamping point 452, the half-discharge clamping point 451 is higher than the full-discharge clamping point 452, the half-discharge clamping point 451 is clamped with the half-discharge hook 433, the full-discharge clamping point 452 is clamped with the full-discharge hook 443, the lower part of the inner core tube 45 is provided with a water sealing sheet 47 for sealing the water outlet 48 at the bottom of the drain valve body 42, the upper part of the inner core tube 45 abuts against a driven end 461 of a lever 46, the lever 46 is rotationally fixed on the drain valve body 42, an active end 462, there are two kinds of typical drain valves, a kind of line-controlled drain valve, a kind of direct-pressing drain valve, this embodiment is a kind of line-controlled drain valve, the active end 462 of the lever 46 is connected with the start key 41 through the guy rope 40, the start key 41 is set in the button box 49 rotationally, the button box 49 is set under the key base 5 of the above-mentioned kind of drain valve air pressure button device, the lower part 62 of the top rod 6 stretches into the button box 49 to lean against the start key 41, another kind of direct-pressing drain valve (not shown in this scheme), the main characteristic is that the start key is set on the top of the drain valve body, the lower end of the start key is directly lean against the active end of the lever, the upper end of the start key is lean against the lower part of the top rod of the above-mentioned kind of drain valve air pressure button device, push the start key to move down through the top rod, the start key stirs the active end of the lever to make the, thereby open the drain valve drainage, if this kind of directly press the drain valve is double drain valve, then the start key includes half row start key and full row start key, half row start key and full row start key lower extreme lean on with the initiative end of lever respectively, foretell a drain valve atmospheric pressure button device's ejector pin includes half row ejector pin and full row ejector pin, half row ejector pin and full row ejector pin are half row atmospheric pressure button respectively, full exhaust presses the button to be connected, half row ejector pin and full row ejector pin are pressed respectively to half row atmospheric pressure button, full exhaust presses the button to stir the initiative end of lever and make the lever rotate on the drain valve body, the driven end perk of lever moves the core pipe and shifts up, open the drainage.

As shown in fig. 7 and 13, when the toilet tank is filled with water, the water sealing piece 47 at the lower end of the inner core tube 45 seals the water outlet 48 of the body 42.

As shown in fig. 1-8, when a full-discharge flush is required, the full-discharge press button 79 starts to operate, that is, the full-discharge pump 12 inflates the full-discharge telescopic airbag 729 through the air tube 10 and the air inlet hole 71 within a set period of time, the full-discharge telescopic airbag 729 expands to push the blocking plate 732 of the full-discharge press part 739 to cling to the bottom 77 of the full-discharge telescopic airbag 729, so as to block the air release hole 75 of the full-discharge telescopic airbag 729, at this time, the full-discharge telescopic airbag 729 forms a closed airbag, the full-discharge telescopic airbag 729 continues to expand under the action of air pressure, the full-discharge press part 749 clamped on the full-discharge press part 739 is driven to move downwards in the cavity 51 of the key base 5, the full-discharge press part 749 presses against the upper part 61 of the push rod 6, the elastic part 63 between the upper part 62 of the push rod 6 and the bottom 52 of the cavity 51 is compressed, the lower part 62 of the push rod 6 extends out, the actuating button 41 rotates in the button box 49, the lever 46 is pulled by the pulling rope 40 to rotate in the drain valve body 42, the driven end 461 of the lever 46 pushes against the upper part of the inner core tube 45, so that the inner core tube 45 ascends in the drain valve body 42, the lower water sealing sheet 47 of the inner core tube 45 releases the sealing of the water outlet 48, the drain valve realizes full drainage (as shown in fig. 3, 4 and 5), when the full drainage limiting piece 769 of the full drainage pushing piece 749 is abutted against the bottom 52 of the cavity 51, the full drainage pushing piece 749 can not move downwards any more, because the sealing disc 732 of the full drainage pressing piece 739 and the blocking piece 733 have the air release gap 734, the bottom 77 of the full drainage air bag 729 is separated from the abutting of the sealing disc 732 of the full drainage 739 under the action of air pressure and is stopped by the blocking 733, at this time, the air release hole 75 of the full drainage air bag 729 is opened, and the air in the full drainage air bag 729 overflows between the air release gap 75 and the air release gap 734 (as shown in fig. 4, 5), the air pressure of the full-row telescopic airbag 729 disappears, the push rod 6 moves upward and returns under the elastic force of the elastic member 63, the upper portion 61 of the push rod 6 pushes the full-row pushing member 749 to move upward, so as to drive the full-discharge pressing member 739 to move upward, the stopper 733 of the full-discharge pressing member 739 pushes the bottom 77 of the full-row telescopic airbag 729 to move upward, the full-row telescopic airbag 729 contracts and returns (as shown in fig. 4, 5 and 7), at this time, the bottom 77 of the full-row telescopic airbag 729 is not attached to the blocking disc 732 of the full-discharge pressing member 739, that is, the full-row telescopic airbag 729 is communicated with the atmosphere through the air release hole 75 and the air release gap 734, so that the full-row telescopic airbag 729 can retract smoothly.

When the full-discharge water is flushed, the full-discharge limit part 769 of the full-discharge pushing part 749 abuts against the bottom 52 of the cavity 51, and the full-discharge pushing part 749 cannot move downward any more, the inner core tube 45 rises to the maximum stroke of full discharge in the water discharge valve body 42, at this time, the full-discharge clamping point 452 on the inner core tube 45 is lifted to the position above the full-discharge hook 443 of the full-discharge limit device 44 and is hooked by the full-discharge hook 443 (as shown in fig. 3 and 6), the lower water sealing sheet 47 of the inner core tube 45 is separated from the water discharge port 48 to realize full-discharge water discharge, when the water level falls to the full-discharge floating barrel 441 and loses buoyancy, the full-discharge floating barrel 441 drives the full-discharge rotating frame 442 to rotate, the full-discharge clamping point 452 is separated from the hook 443 of the full-discharge hook, the inner core tube 45 falls, and the water sealing sheet 47 blocks the water discharge port 48 again to realize full-discharge water discharge.

Of course, during full-discharge flushing, the half-discharge clamping point 451 on the inner core tube 45 is also mentioned above the half-discharge hook 433 of the half-discharge limiting device 43, but the position of the half-discharge limiting device 43 is higher than that of the full-discharge limiting device 44, before the water level falls to the full-discharge floating barrel 441 and loses buoyancy, the half-discharge floating barrel 431 of the half-discharge limiting device 43 loses buoyancy before the full-discharge floating barrel 441, and the half-discharge clamping point 451 is already disengaged from the hook of the half-discharge hook 433, so that the inner core tube 45 can smoothly fall.

Similarly, the half-discharge principle of the water discharge valve is the same as the full-discharge principle, as shown in fig. 1, 2 and 9-14, when half-discharge water is needed, the half-discharge air pressure button 78 starts to operate, that is, the half-discharge air pump 11 inflates the half-discharge telescopic air bag 728 through the air pipe 10 and the air inlet hole 71 in a set time period, the half-discharge telescopic air bag 728 expands to push the blocking plate 732 of the half-discharge pressing member 738 to be closely attached to the bottom 77 of the half-discharge telescopic air bag 728, the air release hole 75 of the half-discharge telescopic air bag 728 is blocked, at this time, the half-discharge telescopic air bag 728 forms a closed air bag, the half-discharge telescopic air bag 728 continues to expand under the action of air pressure, the half-discharge pushing member snapped on the half-discharge pressing member 738 is driven to move downwards in the cavity 51 of the key base 5, the half-discharge pushing member 748 pushes against the upper portion 61 of the push rod 6, and the elastic member 63, the lower part 62 of the mandril 6 extends out of the through hole 53 to push against the start key 41, the start key 41 rotates in the button box 49, the lever 46 is pulled by the pull rope 40 to rotate in the drain valve body 42, the driven end 461 of the lever 46 pushes against the upper part of the inner core tube 45, so that the inner core tube 45 is lifted in the drain valve body 42, the lower water sealing sheet 47 of the inner core tube 45 releases the sealing of the drain opening 48, the drain valve realizes half-row drainage (as shown in figures 9, 10 and 11), when the half-row 768 limiting piece of the half-row pushing piece 748 is abutted against the bottom 52 of the cavity 51, the half-row pushing piece 748 can not move downwards any more because the air release gap 734 exists between the sealing disc 732 and the stop 733 of the half-row pushing piece 748, the bottom 77 of the half-row telescopic air bag 728 is separated from the abutting of the sealing disc 732 of the half-row draining 738 under the action of air pressure and is stopped and limited by the stop 733, and the air release hole, the gas in the half-row telescopic airbag 728 overflows between the air release hole 75 and the air release gap 734 (as shown in fig. 10 and 11), the air pressure of the half-row telescopic airbag 728 disappears, the ejector rod 6 moves upwards to reset under the elastic force of the elastic member 63, the upper portion 61 of the ejector rod 6 pushes the full-row push member 749 to move upwards, so as to drive the half-row pressure-relief member 738 to move upwards, the stop 733 of the half-row pressure-relief member 738 pushes the bottom 77 of the half-row telescopic airbag 728 to move upwards, the half-row telescopic airbag 728 contracts to reset (as shown in fig. 10, 11 and 13), at this time, the bottom 77 of the half-row telescopic airbag 728 is not attached to the blocking plate 732 of the half-row pressure-relief member 738, that is, the half-row telescopic airbag 728 is communicated with the atmosphere through the air release hole 75 and the air release gap 734, so that the half-row telescopic airbag.

When half-row flushing is performed, when the half-row limiting piece 768 of the half-row pushing piece 748 abuts against the bottom 52 of the cavity 51, and the half-row pushing piece 748 cannot move downwards any more, the inner core tube 45 rises to the maximum stroke of half-row in the drain valve body 42, at this time, the half-row clamping point 451 on the inner core tube 45 is lifted to the position above the half-row hook 433 of the half-row limiting device 43 and is hung by the half-row hook 433 (as shown in fig. 9 and 12), the lower water sealing sheet 47 of the inner core tube 45 breaks away from the blocking of the water outlet 48 to realize half-row drainage, after the water level falls to the half-row floating barrel 431 and loses buoyancy, the half-row floating barrel 431 drives the half-row rotating frame 432 to rotate, the half-row clamping point 451 breaks away from the hooking of the half-row hook 433, the inner core tube 45 falls, the water sealing sheet 47 blocks the water outlet 48 again.

Of course, during half-flush, since the height of the half-line stopper 768 of the half-line pusher 748 is greater than the height of the full-line stopper 769 of the full-line pusher 749, the distance that the half-line pusher 748 pushes the plunger 6 out of the through hole 53 is shorter than the distance that the full-line pusher 749 pushes the plunger 6 out of the through hole 53, and since the half-line stopper 43 is located higher than the full-line stopper 44, the inner core tube 45 does not rise to the height during full-flush during half-flush, and when the half-line catch point 451 on the inner core tube 45 is caught by the half-line catch 433 of the half-line stopper 43, the full-line catch point 452 on the inner core tube 45 does not rise above the full-line catch 443 of the full-line stopper 44, and the full-line catch point 452 is not caught by the full-line catch 443 (see fig. 13 and 14), the inner core tube 45 can smoothly fall down.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present application, and all equivalent changes made according to the design key of the present application fall within the protection scope of the present application.

Claims (9)

1. The utility model provides a drain valve atmospheric pressure button device for start the drain valve drainage, its characterized in that: the key device comprises an air pump, an air pressure key, a key base and a push rod, wherein the key base is provided with a cavity, the bottom of the cavity is provided with a through hole for the push rod to pass through, the lower part of the push rod extends out of the through hole and is used for pushing a starting key of a drain valve, the upper part of the push rod is arranged in the cavity, an elastic part is arranged between the upper part of the push rod and the bottom of the cavity, the air pressure key is arranged in the cavity and is positioned above the upper part of the push rod, the air pressure key comprises a telescopic air bag, a pressure release part and a push part, the upper part of the telescopic air bag is provided with an air inlet hole, the air inlet hole is communicated with the air pump through an air pipe, the bottom of the telescopic air bag is provided with an air leakage hole, the pressure release part is blocked on the air leakage hole, the push part is clamped on the pressure release part and is positioned above the upper, deflating the telescopic air bag.

2. The air pressure button device of the drain valve according to claim 1, characterized in that: pressure release piece include spliced pole, shutoff dish, stop, the spliced pole diameter is less than the hole of disappointing, the diameter of shutoff dish is greater than the hole of disappointing, and the shutoff dish sets up the upper end of spliced pole, the radial protruding establishing of stop on the spliced pole and the shutoff dish between keep the clearance of disappointing, the clearance of disappointing is greater than the wall thickness of flexible gasbag's bottom, when releasing the piece setting on the hole of disappointing, the inboard of flexible gasbag's bottom is arranged in to the shutoff dish, the outside of flexible gasbag's bottom is arranged in to the stop, the spliced pole is located the portion between shutoff dish and the stop and arranges in the hole of disappointing, the lower extreme of piece joint at the spliced pole that pushes away.

3. The air pressure button device of the drain valve according to claim 2, characterized in that: the lower end of the connecting column is provided with an elastic clamp, the elastic clamp comprises a radial annular flange formed at the lower end of the connecting column, an abdicating sectional groove is axially formed at the lower end of the connecting column, a clamping hole is formed on the pushing piece, the radial annular flange penetrates through the clamping hole, the lower end of the connecting column is elastically deformed and contracted through the abdicating sectional groove, and the pushing piece is clamped between the annular flange at the lower end of the connecting column and the stopper through the clamping hole.

4. The air pressure button device of the drain valve according to claim 2, characterized in that: and the stop is provided with an air leakage channel.

5. The air pressure button device of the drain valve according to claim 1, characterized in that: the air pump comprises a half-exhaust pump and a full-exhaust pump which have the same structure, the telescopic air bags of the air pressure key comprise two half-row telescopic air bags and a full-row telescopic air bag which have the same structure, the pressure relief piece comprises two half-drainage pressing pieces and a full-drainage pressing piece which have the same structure, the pushing piece comprises a half-row pushing piece and a full-row pushing piece, the limiting piece of the pushing piece comprises a half-row limiting piece and a full-row limiting piece, the half-row limiting piece and the full-row limiting piece are respectively convexly arranged on the bottom surfaces of the half-row pushing piece and the full-row pushing piece, the half-row limit pieces are higher than the full-row limit pieces, the half-exhaust pump, the half-row telescopic air bags, the half-drainage pressing pieces and the half-row pushing pieces are combined together to form a half-exhaust air pressure button of the drain valve, the half-row limit pieces and the bottom of the cavity are abutted against the reaction force to block the air leakage holes by the half-drainage pressing pieces, and the half-row telescopic air bags are subjected to half-row air leakage; the full-exhaust pump, the full-exhaust telescopic air bag, the full-drainage pressing piece and the full-exhaust pushing piece are combined together to form a full-exhaust pressing button of the drain valve, the full-exhaust limiting piece and the bottom of the cavity are abutted against reaction force to push the full-drainage pressing piece to plug the air release hole, and the full-exhaust telescopic air bag is subjected to full-exhaust air release.

6. The air pressure button device of the drain valve according to claim 5, characterized in that: the half-exhaust pressure button and the full-exhaust pressure button are respectively arranged in the cavity from left to right, and the half-exhaust pushing piece and the full-exhaust pushing piece are respectively arranged on the upper part of the ejector rod from left to right to respectively push the ejector rod.

7. The air pressure button device of the drain valve according to claim 5, characterized in that: the half-row pushing piece and the upper part of the ejector rod are formed into a whole, and the full-row pushing piece and the upper part of the ejector rod are formed into a whole.

8. The air pressure button device of the drain valve according to claim 1, characterized in that: the upper portion of cavity be equipped with the opening, be equipped with the apron on the opening, the upper portion of flexible gasbag is fixed on the apron, the air vent setting of flexible gasbag is on the apron.

9. The air pressure button device of the drain valve according to claim 1, characterized in that: the elastic part adopt a spring, and the telescopic air bag adopts a silica gel air bag.

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