CN107152066B - Gas driving device capable of switching gas outlet and drain valve - Google Patents
Gas driving device capable of switching gas outlet and drain valve Download PDFInfo
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- CN107152066B CN107152066B CN201710465446.5A CN201710465446A CN107152066B CN 107152066 B CN107152066 B CN 107152066B CN 201710465446 A CN201710465446 A CN 201710465446A CN 107152066 B CN107152066 B CN 107152066B
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- air outlet
- gas
- air
- flow channel
- air flow
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
- E03D5/09—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand
Abstract
The invention discloses a gas driving device capable of switching gas outlet and a water discharge valve, wherein the driving device comprises a body, a first driving element, a second driving element and a piston assembly, wherein a piston cavity is formed in the body; when the first driving element drives the piston assembly, gas in the piston cavity flows out of the first gas flow channel; when the second driving element drives the piston assembly, the switching element is driven to close the first air flow channel and open the second air flow channel at the same time, and air in the piston cavity flows out of the second air flow channel; the space occupation is reduced by sharing the piston cavity, and the switching element is used for controlling the normally open airflow channel and the normally closed airflow channel to switch to discharge air, so that the structure is simple and compact, the design concept is ingenious, and the cost is saved.
Description
Technical Field
The invention relates to a gas driving device capable of switching gas outlet and a water discharge valve.
Background
The existing gas actuating button for controlling the double-gear drain valve mostly uses two independent buttons, an independent piston cavity is arranged in each button, and a key for pressing the button drives a piston to compress gas in the piston cavity, so that the gas is discharged from a gas outlet of each piston cavity to actuate the drain valve to carry out full drainage or half drainage.
The structure of current gas actuation button need set up two solitary buttons and two solitary piston mechanism, and two button drive respective piston mechanism control the drain valve and carry out full drainage or half drainage, and this structure occupation space is big, is not suitable for when reserving button installation space less, can't satisfy some people to the demand of two buttons, and the cost is also great.
Disclosure of Invention
The invention aims to solve the problems and provides a gas driving device and a drain valve capable of switching gas outlet.
In order to realize the purpose, the invention adopts the technical scheme that:
a switchable gas output gas drive apparatus comprising: the gas flow switching device comprises a body (10) with a piston cavity (12) formed inside, a first driving element (20), a second driving element (30) and a piston assembly (11), wherein the first driving element, the second driving element and the piston assembly (11) are movably arranged on the body (10), the piston assembly (11) is movably arranged in the piston cavity (12), a normally open first gas flow passage (40) and a normally closed second gas flow passage (50) are further arranged in the body (10) and are communicated with the piston cavity (12), and the second driving element (30) is linked with a switching element (60);
when the first driving element (20) drives the piston assembly (11), gas in the piston cavity (12) flows out of the first gas flow passage (40);
when the second driving element (30) drives the piston assembly (11), the switching element (60) is driven to close the first air flow channel (40) and open the second air flow channel (50), and air in the piston cavity (12) flows out of the second air flow channel (50).
Preferably, the switching element (60) comprises a first slide bar (61) and a second slide bar (62) respectively cooperating with the second drive element (30), the first slide bar (61) cooperating with the first air flow channel (40) in a sliding manner, and the second slide bar (62) cooperating with the second air flow channel (50) in a sliding manner; when the second driving element (30) drives the piston assembly (11), the first sliding rod (61) is driven to slide and close the first air flow channel (40) and the second sliding rod (62) is driven to slide and open the second air flow channel (50), and the air in the piston cavity (12) flows out of the second air flow channel (50).
Preferably, the first air flow channel (40) comprises a normally open first air outlet (41), and the second air flow channel (50) comprises a normally closed second air outlet (51); when the second driving element (30) drives the piston assembly (11), the first slide rod (61) is driven to slide and close the first air outlet (41) to close the first air flow channel (40), and the second slide rod (62) is driven to slide and open the second air outlet (51) to open the second air flow channel (50), and the air in the piston cavity (12) flows out of the second air outlet (51).
Preferably, the first air outlet (41) is disposed on a side wall of the first air flow channel (40), the second air outlet (51) is disposed on a side wall of the second air flow channel (50), and the first slide bar (61) and the second slide bar (62) are respectively sleeved with a sealing member (64) for controlling opening and closing of the first air outlet (41) and the second air outlet (51).
Preferably, the sealing element (64) of the second slide bar (62) comprises a first sealing element (641) and a second sealing element (642) arranged at intervals along the axial direction of the second slide bar (62), the first sealing element (641) and the second sealing element (642) are respectively arranged at two sides of the second air outlet (51), the first sealing element (641) is arranged between the second air outlet (51) and the air outlet (121) arranged on the piston cavity (12), the first sealing element (641) moves towards the piston cavity air outlet (121) to open the second air outlet (51), and the air is prevented from leaking out from a gap between the second slide bar (62) and the inner wall of the second air flow channel (50) through the second sealing element (642).
Preferably, the side wall of the second air flow channel (50) is further provided with an air outlet (53), when the second slide bar (62) is not driven, the air outlet (53) is communicated with the second air outlet (51), and when the second slide bar (62) opens the second air outlet (51), the communication between the air outlet (53) and the second air outlet is blocked by the second sealing element (642).
Preferably, an air outlet groove (52) is formed in an inner wall of the second air flow channel (50) between the piston cavity air outlet (121) and the second air outlet (51), and when the first sealing member (641) moves to the position of the air outlet groove (52), the air outlet groove (52) is communicated with the piston cavity air outlet (121) and the second air outlet (51) to achieve opening control of the second air outlet (51).
Preferably, the switching element (60) comprises a third slide bar (63) cooperating with the second drive element (30), said third slide bar sliding between the first air flow channel (40) and the second air flow channel (50); when the second driving element (30) drives the piston assembly (11), the third sliding rod (63) is driven to slide to close the first air flow channel (40) and open the second air flow channel (50), and the air in the piston cavity (12) flows out of the second air flow channel (50).
Preferably, the first and second driving elements (20, 30) are corresponding to a first and second button, and the direction of the movement track of the switching element (60) is coincident with or parallel to the direction of the movement track of the second button.
In addition, the invention also provides a water discharge valve, which comprises the gas driving device capable of switching gas discharge, wherein the first gas flow passage (40) is matched with a first water discharge control mechanism of the water discharge valve, and when the first driving element (20) is operated to drive the piston assembly (11), gas in the piston cavity (12) flows out of the first gas flow passage (40) to control the water discharge valve to realize first water discharge; the second air channel (50) is matched with a second water discharge amount control mechanism of the water discharge valve, when the second driving element (30) is operated or the second driving element (30) and the first driving element (20) are simultaneously operated to drive the piston assembly (11), the second driving element (30) simultaneously drives the switching element (60) to close the first air channel (40) and open the second air channel (50), and the gas in the piston cavity (12) flows out from the second air channel (50) to control the water discharge valve to realize the second water discharge amount.
The beneficial effects of the invention are:
(1) The first driving element and the second driving element drive one piston assembly together, so that the overall size of the device is reduced, the occupied space is reduced, and the application range is wider;
(2) The invention controls a normally open airflow channel and a normally closed airflow channel to switch to discharge air through the switching element, and the switching element is only linked with one of the driving elements, so that the structure is simple and compact, the design concept is ingenious, and the cost is saved;
(3) The first driving element and the second driving element are correspondingly a first button and a second button, the direction of the motion track of the switching element is consistent with or parallel to the direction of the motion track of the second button, so that the pressing force of the second button is small, the second button and the switching piece are not easy to jam or block in the motion process, the function is more reliable, and the user experience is better.
(3) The sliding rod is used as the switching element, so that the sliding rod is in linkage fit with the second driving element, the sliding rod can be driven to switch on and off the two air channels when the second driving element is operated, no additional operation is needed, and the operation is more convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of a switchable gas output gas driving device according to the present invention;
FIG. 2 isbase:Sub>A cross-sectional view ofbase:Sub>A gas-driven apparatus with switchable gas-out according to the present invention inbase:Sub>A normal initial state (A-A direction);
FIG. 3 is a cross-sectional view of a gas-driven apparatus with switchable gas-out according to the present invention in a normal initial state (B-B direction);
FIG. 4 is a cross-sectional view of a gas-driven apparatus with switchable gas-out according to the present invention in a normal initial state (C-C direction);
FIG. 5 is a cross-sectional view of a gas-driven apparatus with switchable gas-out according to the present invention in a normal initial state (D-D direction);
fig. 6 isbase:Sub>A sectional structure view (base:Sub>A-base:Sub>A direction) ofbase:Sub>A first driving element ofbase:Sub>A switchable gas output driving apparatus according to the present invention;
fig. 7 is a cross-sectional view (B-B direction) of the first driving element of the switchable gas discharge driving apparatus according to the present invention;
fig. 8 is a sectional view (C-C direction) of a first driving element of a switchable gas output driving apparatus according to the present invention;
fig. 9 is a cross-sectional view (B-B direction) showing the structure of the second driving element pressed in the gas driving device with switchable gas discharge according to the present invention;
fig. 10 is a sectional view (C-C direction) of a second driving element of a switchable gas output driving apparatus according to the present invention;
fig. 11 is a cross-sectional view (D-D direction) showing the structure of the second driving element pressed in the gas driving device with switchable gas discharge according to the present invention;
FIG. 12 is a cross-sectional view of a switchable gas output driving apparatus according to another embodiment of the present invention in a normal initial state;
fig. 13 is a sectional structure view of a switchable gas output driving apparatus according to another embodiment of the present invention when pressing a first driving element;
fig. 14 is a sectional structure view of a second driving element of a switchable gas output driving apparatus according to another embodiment of the present invention.
In the figure:
10-a body; 11-a piston assembly; 12-a piston cavity; 121-piston chamber outlet; 1211 — a first piston chamber outlet port; 1212-second piston chamber outlet;
20-a first drive element;
30-a second drive element;
40-first air flow path (normally open); 41-first air outlet (normally open); 50-second flow channel (normally closed); 51-second outlet (normally closed); 52-an air outlet groove; 53-exhaust port;
60-a switching element; 61-a first slide bar; 62-a second slide bar; 63-a third slide bar; 64-seals (Y-ring, O' ring, gasket); 641-a first seal; 642-second seal.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1 to 5, a gas driving apparatus capable of switching gas output according to the present invention includes: the gas-liquid separator comprises a body 10, a first driving element 20, a second driving element 30, a piston assembly 11 and a piston cavity 12 formed in the body 10, wherein the first driving element 20, the second driving element 30 and the piston assembly 11 are movably arranged in the body 10, the piston assembly 11 is movably arranged in the piston cavity 12, and a normally open first gas flow passage 40 and a normally closed second gas flow passage 50 which are communicated with the piston cavity 12 are further arranged in the body 10.
The piston chamber 12 of this embodiment has two normally open outlet ports, namely a first piston chamber outlet port 1211 and a second piston chamber outlet port 1212, respectively, and the two piston chamber outlet ports 1211,1212 are respectively disposed at the bottom of the piston chamber 12 and respectively serve as inlet ports of a first air flow channel 40 and a second air flow channel 50, the first air flow channel 40 and the second air flow channel 50 are independently disposed, and the piston chamber 12 is located between the first air flow channel 40 and the second air flow channel 50.
The first gas flow passage 40 includes a first gas outlet 41 which is always open, and the gas flowing out of the first piston chamber gas outlet 1211 flows out of the first gas outlet 41 through the first gas flow passage 40. The second air flow channel 50 includes a second air outlet 51 which is normally closed, when the second air outlet 51 is opened, the air flowing out from the second piston chamber air outlet 1212 flows out from the second air outlet 51 through the second air flow channel 50, and an air outlet groove 52 is formed on the inner wall of the second air flow channel 50 between the second piston chamber air outlet 1212 and the second air outlet 51. The first air outlet 41 is disposed at a side wall of the first air flow passage 40, and the second air outlet 51 is disposed at a side wall of the second air flow passage 50.
As shown in fig. 6 to 8, when the first driving element 20 drives the piston assembly 11, the gas in the piston cavity 12 flows out from the first gas flow passage 40.
As shown in fig. 9 to 11, the second driving element 30 is linked with a switching element 60, when the second driving element 30 drives the piston assembly 11, the switching element 60 is driven to close the first air flow channel 40 and open the second air flow channel 50, and the air in the piston cavity 12 flows out of the second air flow channel 50.
The first air flow path 40 and the second air flow path 50 may be controlled to open or close in various ways, for example, the first air flow path 40 may be connected or disconnected by controlling the opening or closing of any one of the first air outlet 41 and the first piston chamber air outlet 1211, and the second air flow path 50 may be connected or disconnected by controlling the opening or closing of any one of the second air outlet 51 and the second piston chamber air outlet 1212. In this embodiment, when the second driving element 30 drives the piston assembly 11, the switching element 60 is driven to close the first air outlet 41 and open the second air outlet 51 at the same time, and the air in the piston cavity 12 flows out from the second air outlet 51 of the second air flow channel 50. In this embodiment, the switching element 60 controls the opening and closing of the second air outlet 51 by connecting or disconnecting the air outlet groove 52, specifically, when the first sealing element 641 described below moves to the position of the air outlet groove 52, the air outlet groove 52 connects the second piston chamber air outlet 1212 and the second air outlet 51, so as to control the opening of the second air outlet 51.
The switching element 60 comprises a first slide bar 61 and a second slide bar 62 which are both in linkage fit with the second driving element 30, the first slide bar 61 is in sliding fit with the first air flow channel 40, and the second slide bar 62 is in sliding fit with the second air flow channel 50; when the second driving element 30 drives the piston assembly 11, the first sliding rod 61 is driven to slide and close the first air flow channel 40, and the second sliding rod 62 is driven to slide and open the second air flow channel 50, and the air in the piston chamber 12 flows out from the second air flow channel 50, specifically, when the second driving element 30 drives the piston assembly 11, the first sliding rod 61 is driven to slide and close the first air outlet 41 to close the first air flow channel 40, and the second sliding rod 62 is driven to slide and open the second air outlet 51 to open the second air flow channel 50, and the air in the piston chamber 12 flows out from the second air outlet 51 of the second air flow channel 50.
The first slide bar 61 and the second slide bar 62 are respectively provided with a seal 64 for controlling the opening and closing of the first air outlet 41 and the second air outlet 51. More than one seal 64 per slide bar may be provided. The sealing member 64 is in sealing sliding fit with the inner wall of the first air flow channel 40 or the second air flow channel 50, on one hand, controls the opening and closing of the first air flow channel 40 or the second air flow channel 50, and on the other hand, guides the movement of the first slide bar 61 or the second slide bar 62.
In this embodiment, the sealing element 64 of the second slide bar 62 includes a first sealing element 641 and a second sealing element 642 axially spaced along the second slide bar 62, the first sealing element 641 and the second sealing element 642 are respectively disposed at two sides of the second air outlet 51, the first sealing element 641 is disposed between the second air outlet 51 and the second piston chamber air outlet 1212, and the first sealing element 641 moves towards the second piston chamber air outlet 1212 to open the second air outlet 51 and prevent the gas from leaking out from the gap between the second slide bar 62 and the inner wall of the second gas flow channel 50 through the second sealing element 642.
The side wall of the second flow channel 50 is further provided with an air outlet 53, when the second slide rod 62 is not driven, the air outlet 53 is communicated with the second air outlet 51, when the second slide rod 62 opens the second air outlet 51, the communication between the air outlet 53 and the second air outlet 51 is blocked by the second sealing element, the air outlet 53 is used for exhausting backflow gas, and when the gas driving device is used in a water drain valve device described below, the air outlet 53 enables gas for driving the water drain valve to drain water to be exhausted from the air outlet 53, so that the normal closing of the water drain valve is ensured.
In the present embodiment, the opening and closing of the first air outlet 41 can be controlled by providing only one sealing member 64 of the first slide bar 61, or two or more sealing members 64 of the first slide bar 61 may be provided as needed.
In addition, only one sealing member 64 may be disposed on the second sliding rod 62 in this embodiment, and in this case, the second sliding rod 62 may be moved away from the second piston chamber air outlet 1212 (i.e. in the upward direction in fig. 11), so that the second piston chamber air outlet 1212 is communicated with the second air outlet 51 and the moved-up sealing member 64 seals the gap between the second sliding rod 62 and the inner wall of the second air flow channel 50, and the air does not leak out from the gap between the second sliding rod 62 and the inner wall of the second air flow channel 50, which is also possible.
The seal 64 may be a Y-seal, an O-seal, a K-seal, a gasket, or the like, with similar effect.
In the present embodiment, the first driving element 20 and the second driving element 30 are corresponding to a first button and a second button, and preferably, the direction of the motion track of the first sliding rod 61 and the second sliding rod 62 is consistent with or parallel to the direction of the motion track of the second button (the second driving element 30), so that the pressing force of the second button is small, and the second button and the first sliding rod 61 and the second sliding rod 62 are not easily jammed or jammed during the motion process, the function is more reliable, and the user experience is better.
The specific working process of this embodiment is as follows:
as shown in fig. 2 to 5, in the normal initial state, the sealing element 64 on the first sliding rod 61 is located above the first air outlet 41, and the first air outlet 41 is in a communication state with the first piston chamber air outlet 1211, that is, the first air outlet 41 is in a normally open state; the first sealing element 641 on the second slide bar 62 is located above the air outlet groove 52, the first sealing element 641 cuts off the communication between the air outlet groove 52 and the second air outlet 51 and the second piston chamber air outlet 1212, so that the second air outlet 51 is in a normally closed state, and at this time, the second sealing element 642 on the second slide bar 62 is located above the air outlet 53, so that the second air outlet 51 is communicated with the air outlet 53, so that the air flowing back from the second air outlet 51 can be discharged through the air outlet 53, and when the air driving device is used in a water discharge valve device, which is described below, the air outlet 53 enables the air driving the water discharge valve to discharge water through the air outlet 53, thereby ensuring that the water discharge valve is normally closed.
As shown in fig. 6 to 8, when the first driving element 20 is pressed, the first and second sliding rods 61,62 are not moved, the first outlet port 41 is kept in an open state, the second outlet port 51 is kept in a closed state, and the gas compressed in the piston chamber 12 flows out of the first outlet port 41.
As shown in fig. 9 to 11, when the second driving element 30 is pressed, the first and second slide rods 61,62 move downward, the sealing member 64 on the first slide rod 61 moves downward below the first air outlet port 41, and the sealing member 64 cuts off the communication between the first air outlet port 41 and the first piston chamber air outlet 1211, that is, the first air outlet port 41 is switched to a closed state; the first sealing element 641 on the second sliding rod 62 moves down to the corresponding position of the air outlet groove 52, the first sealing element 641 loses the sealing function, so that the second air outlet 51 can communicate with the second piston chamber air outlet 1212 through the air outlet groove 52, and the second air outlet 51 is switched to the open state, and at this time, the second sealing element 642 on the second sliding rod 62 moves down below the air outlet 53, and the second sealing element 642 cuts off the communication between the second air outlet 51 and the air outlet 53, so that the air cannot leak out from the air outlet 53, and cannot leak out from the gap between the second sliding rod 62 and the inner wall of the second air flow channel 50, and thus, the air compressed in the piston chamber 12 flows out from the second air outlet 51, thereby realizing the switching of the opening and closing of the two air flow channels 40 and 50.
Referring to fig. 12 to fig. 14, fig. 12 to fig. 14 are schematic cross-sectional views of a gas driving device capable of switching gas outlet according to another embodiment of the present invention, and the difference between the embodiment and the above embodiment is: in the embodiment, the switching element 60 is provided with only one sliding rod, specifically, the switching element 60 includes a third sliding rod 63 cooperating with the second driving element 30, and the third sliding rod 63 slides between the first air flow channel 40 and the second air flow channel 50; when the second driving element 30 drives the piston assembly 11, the third sliding rod 63 is simultaneously driven to slide to close the first air flow channel 40 and open the second air flow channel 50, and the air in the piston cavity 12 flows out of the second air flow channel 50.
The air outlet of the piston chamber 12 of the present embodiment is provided with only one piston chamber air outlet 121, the first air flow channel 40 and the second air flow channel 50 are both communicated with the piston chamber air outlet 121, the sealing member 64 also includes a first sealing member 641 and a second sealing member 642, the first sealing member 641 is configured to switch the first air outlet 41 and the second air outlet 51, and the second sealing member 642 is configured to seal and cooperate the third sliding rod 63 with the inner wall of the air flow channel, so as to prevent a gap between the third sliding rod 63 and the inner wall of the air flow channel from leaking.
The following is a specific working process of this embodiment:
as shown in fig. 12, in the normal initial state, the first sealing element 641 is located between the piston chamber air outlet 121 and the second air outlet 51, at this time, the piston chamber air outlet 121 is communicated with the first air outlet 41, the first air outlet 41 is in the normally open state, the piston chamber air outlet 121 and the second air outlet 51 are blocked by the first sealing element 641, and the second air outlet 51 is in the closed state.
As shown in fig. 13, when the first driving element 20 is pushed, the third sliding rod 63 is not moved, the first sealing member 641 is kept at the same position, the first air outlet 41 is kept in the open state, the second air outlet 51 is kept in the closed state, and the gas compressed in the piston chamber 12 flows out of the first air outlet 41.
As shown in fig. 14, when the second driving element 30 is pushed, the third sliding rod 63 slides to make the first sealing member 641 located between the piston chamber air outlet 121 and the first air outlet 41, at this time, the first air outlet 41 and the piston chamber air outlet 121 are blocked by the first sealing member 641, the first air outlet 41 is switched to the closed state, the piston chamber air outlet 121 is communicated with the second air outlet 51, the second air outlet 51 is switched to the open state, and the compressed air in the piston chamber 12 flows out from the second air outlet 51.
In addition, the invention also provides a water discharge valve, which includes the gas driving device capable of switching to discharge gas as described in any one of the above embodiments, the first gas flow channel 40 cooperates with a first water discharge amount control mechanism (not shown) of the water discharge valve, when the first driving element 20 is operated to drive the piston assembly 11, the gas in the piston cavity 12 flows out from the first gas flow channel 40 to control the water discharge valve to realize a first water discharge amount; when the second flow channel 50 cooperates with a second discharge flow rate control mechanism (not shown) of the water discharge valve, and the second driving element 30 is operated or the second driving element 30 and the first driving element 20 are operated simultaneously to drive the piston assembly 11, the second driving element 30 drives the switching element 60 to close the first flow channel 40 and open the second flow channel 50 simultaneously, and the gas in the piston chamber 12 flows out of the second flow channel 50 to control the water discharge valve to achieve a second discharge flow rate. The structure and principle of the switchable gas output gas driving device are described above, and are not described in detail here.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A switchable gas output gas drive device, comprising: the gas flow switching device is characterized by comprising a body (10) with a piston cavity (12) formed inside, a first driving element (20), a second driving element (30) and a piston assembly (11), wherein the first driving element, the second driving element and the piston assembly (11) are movably arranged on the body (10), the piston assembly (11) is movably arranged in the piston cavity (12), the gas flow switching device is characterized in that a first gas flow passage (40) which is communicated with the piston cavity (12) and is normally open and a second gas flow passage (50) which is normally closed are further arranged in the body (10), and the second driving element (30) is linked with a switching element (60);
when the first driving element (20) drives the piston assembly (11), gas in the piston cavity (12) flows out of the first gas flow passage (40);
when the second driving element (30) drives the piston assembly (11), the switching element (60) is driven to close the first air flow channel (40) and open the second air flow channel (50), and the air in the piston cavity (12) flows out of the second air flow channel (50).
2. The gas driving device capable of switching gas discharge according to claim 1, wherein: the switching element (60) comprises a first slide bar (61) and a second slide bar (62) which are respectively in linkage fit with the second driving element (30), the first slide bar (61) is in sliding fit with the first air flow channel (40), and the second slide bar (62) is in sliding fit with the second air flow channel (50); when the second driving element (30) drives the piston assembly (11), the first sliding rod (61) is driven to slide and close the first air flow channel (40) and the second sliding rod (62) is driven to slide and open the second air flow channel (50), and the air in the piston cavity (12) flows out of the second air flow channel (50).
3. The gas-driven apparatus capable of switching gas discharge according to claim 2, wherein: the first air flow channel (40) comprises a normally open first air outlet (41), and the second air flow channel (50) comprises a normally closed second air outlet (51); when the second driving element (30) drives the piston assembly (11), the first sliding rod (61) is driven to slide and close the first air outlet (41) to close the first air flow passage (40), and the second sliding rod (62) is driven to slide and open the second air outlet (51) to open the second air flow passage (50), and the air in the piston cavity (12) flows out from the second air outlet (51).
4. The gas driving device capable of switching gas discharge according to claim 3, wherein: the first air outlet (41) is arranged on the side wall of the first air flow channel (40), the second air outlet (51) is arranged on the side wall of the second air flow channel (50), and the first sliding rod (61) and the second sliding rod (62) are respectively sleeved with a sealing element (64) for controlling the opening and closing of the first air outlet (41) and the second air outlet (51).
5. The gas driving device capable of switching gas discharge according to claim 4, wherein: the sealing element (64) of the second slide bar (62) comprises a first sealing element (641) and a second sealing element (642) which are arranged at intervals along the axial direction of the second slide bar (62), the first sealing element (641) and the second sealing element (642) are respectively arranged at two sides of the second air outlet (51), the first sealing element (641) is arranged between the second air outlet (51) and an air outlet (121) arranged on the piston cavity (12), the first sealing element (641) moves towards the direction of the piston cavity air outlet (121) to open the second air outlet (51), and the air is prevented from leaking out of a gap between the second slide bar (62) and the inner wall of the second air flow channel (50) through the second sealing element (642).
6. The gas driving device capable of switching gas discharge according to claim 5, wherein: an air outlet (53) is further formed in a side wall of the second air flow channel (50), when the second slide bar (62) is not driven, the air outlet (53) is communicated with the second air outlet (51), and when the second air outlet (51) is opened, the second slide bar (62) blocks the communication between the air outlet (53) and the second air outlet through the second sealing element (642).
7. The gas driving device capable of switching gas discharge according to claim 5, wherein: an air outlet groove (52) is formed in the inner wall of the second air flow channel (50) between the piston cavity air outlet (121) and the second air outlet (51), and when the first sealing element moves to the position of the air outlet groove (52), the air outlet groove (52) is communicated with the piston cavity air outlet (121) and the second air outlet (51) to further achieve opening control of the second air outlet (51).
8. The gas-driven apparatus capable of switching gas discharge according to claim 1, wherein:
the switching element (60) comprises a third slide bar (63) cooperating with the second drive element (30), said third slide bar sliding between the first and second gas flow channels (40, 50); when the second driving element (30) drives the piston assembly (11), the third sliding rod (63) is driven to slide to close the first air flow channel (40) and open the second air flow channel (50), and the air in the piston cavity (12) flows out of the second air flow channel (50).
9. A switchable gas outlet gas drive arrangement according to any of claims 1 to 8, wherein: the first driving element (20) and the second driving element (30) are a first button and a second button, and the direction of the motion trail of the switching element (60) is consistent with or parallel to the direction of the motion trail of the second button.
10. A drain valve, characterized by: the switchable gassing gas drive apparatus of any one of claims 1 to 9, the first gas flow path (40) cooperating with a first discharge control mechanism of the water discharge valve, the gas in the piston chamber (12) flowing out of the first gas flow path (40) when the first drive element (20) is operated to drive the piston assembly (11) to control the water discharge valve to achieve a first discharge; the second air channel (50) is matched with a second water discharge amount control mechanism of the water discharge valve, when the second driving element (30) is operated or the second driving element (30) and the first driving element (20) are simultaneously operated to drive the piston assembly (11), the second driving element (30) simultaneously drives the switching element (60) to close the first air channel (40) and open the second air channel (50), and the gas in the piston cavity (12) flows out from the second air channel (50) to control the water discharge valve to realize the second water discharge amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465446.5A CN107152066B (en) | 2017-06-19 | 2017-06-19 | Gas driving device capable of switching gas outlet and drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465446.5A CN107152066B (en) | 2017-06-19 | 2017-06-19 | Gas driving device capable of switching gas outlet and drain valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152066A CN107152066A (en) | 2017-09-12 |
| CN107152066B true CN107152066B (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710465446.5A Active CN107152066B (en) | 2017-06-19 | 2017-06-19 | Gas driving device capable of switching gas outlet and drain valve |
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| CN (1) | CN107152066B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107152066A (en) | 2017-09-12 |
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