A hand-controlled magnetic opening and closing controller

Abstract

The present invention relates to a manual magnetic on-off controller, comprising a valve body, a button assembly arranged inside the valve body, and an actuator whose action is triggered by the button assembly; a vacuum interface, an air interface and an output interface are arranged on the outer wall of the valve body, and a vacuum pipeline connected to the vacuum interface, an air pipeline connected to the air interface, and an output pipeline connected to the output interface are arranged in sequence inside; the actuator comprises a plug that is triggered to rise and fall by the button assembly and intermittently opens and closes the vacuum pipeline and the air pipeline, and a valve core assembly that is used to make the output interface intermittently connected to the vacuum interface and the air interface; the present invention mainly adopts manual triggering to realize the action of the controller, so that the output interface can switch to let in air or form a vacuum, thereby controlling the action of the vacuum drain valve, diaphragm valve, pneumatic water valve, etc. connected thereto, and the control is convenient and efficient; and it is suitable for occasions with a large range of air pressure changes and unstable pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of controllers for equipment related to the kitchen and bathroom fields such as vacuum toilets, including the technical field of controllers for related products such as vacuum toilets that require pneumatic control for vacuum sewage discharge, and particularly to a hand-controlled magnetic opening and closing controller. Background Art

[0002] Based on the vacuum technology of the pressure difference formed between the pressure lower than the atmospheric pressure and the atmospheric pressure, the vacuum toilet, under the action of the controller, discharges the human excrement and garbage in the vacuum toilet through the vacuum drain valve (called vacuum diaphragm valve abroad and diaphragm valve in China) and the manual ball valve into the vacuum sewer pipe, and then into the vacuum sewage conveying pipeline system; its basic working principle is as follows: when flushing the vacuum toilet, after pressing the controller button, the vacuum drain valve will open, relying on the driving force generated by the gas pressure difference acting on the sewage and solid garbage mixture in the vacuum toilet, the gas-liquid solid garbage mixture will be discharged into the sewer pipe after the vacuum drain valve and the manual ball valve, and then the garbage in the toilet will be cleaned up. When the toilet does not need to be flushed, the controller will be reset after a delay, and the vacuum drain valve will be closed, thereby stopping the power source of the pressure difference generated on both sides of the vacuum toilet and the solid garbage mixture, so that the toilet stops working.

[0003] Compared with traditional gravity siphon toilets and direct-flush toilets, the main advantages of vacuum toilets are energy and water saving and no hidden dangers of odor leakage. Therefore, its application areas are very wide, such as in hospitals, schools, hotels and other fields.

[0004] It is well known that vacuum toilets have a high frequency of controller failures during operation and are inconvenient to use. There are several types of controllers:

[0005] First, the pure mechanical type, the controller is mainly controlled by lever mechanism and cam mechanism, and the reference patents are CN1201057C and US6128789; the controller has related mechanical parts, a large number of parts, poor reliability, bulky and large size.

[0006] Second, the gas-controlled type includes two types of controllers:

[0007] (1) Single-button controllers, such as CN200680003008.7, CN201580081233.1, US5069243, US4373838, US4171853, US5570715;

[0008] (2) Two-button controller, such as the CN111677069A large and small water two-button controller and its vacuum sewage system.

[0009] The reasons for these controller failures and deficiencies are:

[0010] First, the mechanical electronic control controller has related mechanical parts, a large number of parts, a complex structure, poor reliability, and is bulky and large in size. Especially in the event of floods, the vacuum toilet is completely paralyzed.

[0011] Secondly, the known pneumatic air control controller (i.e., patent number CN111677069A, named a spring damping delay control device for vacuum toilet related equipment) has the function of pressing delay to connect, and the non-pressed state is the disconnected state. There are the following technical problems: First, the piston technology has the problems of high manufacturing precision and high cost; second, the eccentric configuration of the large and small water buttons produces a certain bending moment force on the valve stem of the actuator, which leads to poor rebound of the actuator or even jamming; third, the lip seal has poor sealing performance, short life, and large friction resistance with the stem, resulting in a relatively large button force; the pressure on the upper and lower end faces of the valve stem of the actuator is different, which will lead to a large rebound spring force, and then a large button force; fourth, the actuator will be affected by air pressure fluctuations, which will affect the effect and accuracy of the delay time; fifth, the opening pressure of the steel ball-spring one-way valve is very large, which cannot meet the requirements of high sensitivity and low opening pressure; sixth, the chamber drainage effect is not good, which will cause the service life of the parts therein to be reduced.

[0012] Therefore, in view of the many shortcomings of pneumatic air-controlled controllers, the present invention has developed a controller suitable for vacuum toilets and other related fields that require the use of vacuum technology to discharge sewage, namely a manual magnetic opening and closing controller, to solve the problems existing in the prior art. After searching, no technical solutions identical or similar to the present invention were found. Summary of the invention

[0013] The purpose of the present invention is to provide a hand-controlled magnetic opening and closing controller, which can be applied to vacuum toilets and other related technical fields that require the use of vacuum technology to discharge sewage, so as to solve a series of problems existing in the prior art.

[0014] The technical solution of the present invention is: a manual magnetic opening and closing controller, comprising a valve body, a button assembly arranged inside the valve body, and an actuator whose action is triggered by the button assembly; a vacuum interface, an air interface and an output interface are arranged on the outer wall of the valve body, and a vacuum pipeline connected to the vacuum interface, an air pipeline connected to the air interface, and an output pipeline connected to the output interface are arranged in sequence inside; the actuator includes a plug that is triggered to rise and fall by the button assembly and intermittently opens and closes the vacuum pipeline and the air pipeline, and a valve core assembly for intermittently connecting the output interface to the vacuum interface and the air interface.

[0015] Preferably, the valve body is provided with a first chamber, a second chamber, a third chamber, a fourth chamber and a fifth chamber in sequence from top to bottom; the button assembly passes through the upper end of the valve body and extends into the first chamber, and divides the first chamber into a first upper chamber and a first lower chamber; the plug sleeve is slidably fitted in the second chamber, and a vent hole connecting the vacuum line and the air line is provided below; the valve core assembly sleeve is slidably fitted between the third chamber and the fourth chamber, and the upper end is located in the third chamber, and the third chamber is divided into a second upper chamber and a second lower chamber, and the second upper chamber and the second lower chamber are connected. A throttling hole is arranged in between; the lower end of the valve core assembly extends into the fourth chamber, and can block the fifth chamber by lifting and lowering movement, and intermittently open and close the communication between the second lower chamber and the fourth chamber; the vacuum interface is respectively connected with the fifth chamber and the vent hole, and constitutes a vacuum pipeline; the air interface is connected with the second lower chamber, the second lower chamber is connected with the second upper chamber through the throttling hole, the second upper chamber is connected with the second chamber, and together constitute an air pipeline; the air interface is also connected with the first upper chamber; the output interface is connected with the fourth chamber, and constitutes an output pipeline.

[0016] Preferably, the button assembly includes a button rod, a large corrugated diaphragm and a magnet fixed in sequence at the lower end of the button rod, and a first return spring arranged between the bottom of the large corrugated diaphragm and the lower end surface of the first chamber; the upper end of the plug is provided with a magnetic lower insert and a second return spring; the valve core assembly includes a valve stem, a small corrugated diaphragm fixed at the upper end of the valve stem, and a third return spring arranged between the upper end of the small corrugated diaphragm and the upper end surface of the third chamber; a groove is provided on the side wall of the valve stem to realize the connection between the second lower chamber and the fourth chamber, and a sealing plate is provided at the lower end to realize the disconnection between the second lower chamber and the fourth chamber; the throttling hole is located on the small corrugated diaphragm.

[0017] Preferably, the interior of the button rod is hollow, and a pressing head is fixed to the upper end; a flushing volume adjustment component is also provided inside the button rod, and the flushing volume adjustment component includes a sealing rod plugged into the interior of the button rod, a dial fixedly connected to the upper end of the sealing rod, and a locking screw that penetrates the pressing head to lock the sealing rod; a "7"-shaped air guide pipe is formed between the lower end of the sealing rod and the side wall, an upper air guide pipe connecting the air guide pipe with the first upper chamber is provided on the inner side of the upper end of the valve body, and a lower air guide pipe connecting the air guide pipe with the second lower chamber is provided inside the button rod; the sealing rod realizes the connection and disconnection of the upper air guide pipe and the lower air guide pipe by rotation.

[0018] Preferably, when the side of the air guide pipe is aligned with the upper ventilation pipe, the upper ventilation pipe is connected to the lower ventilation pipe, and this is the small flushing mode; when the side of the air guide pipe is not aligned with the upper ventilation pipe, the upper ventilation pipe is not connected to the lower ventilation pipe, and this is the large flushing mode.

[0019] Preferably, the lower end of the dial has a protrusion, and the inside of the pressing head has a sliding groove for the protrusion to slide and cooperate with, and the sliding groove is in a 1 / 4 arc shape.

[0020] Preferably, the upper end surface of the dial is provided with a dial button protruding upward.

[0021] Preferably, the valve body includes an upper shell, a first middle shell, a second middle shell, a third middle shell, a fourth middle shell and a lower shell which are snapped and fixedly connected in sequence from top to bottom; the outer edge of the large corrugated diaphragm is snapped and fixed between the upper shell and the first middle shell, and the small corrugated diaphragm is snapped and fixed between the third middle shell and the fourth middle shell.

[0022] Preferably, the lower end of the button rod is provided with a magnet seat and an upper insert nested with the magnet seat, the magnet sleeve is arranged on the outside of the magnet seat, the lower end of the upper insert extends to the bottom of the magnet seat and presents a cylindrical structure with an open lower end, and the lower end surface of the first lower chamber is provided with an annular concave cavity surrounding the movement area of ​​the plug.

[0023] Preferably, a magnet seat and an upper insert that is nested with the magnet seat are provided at the lower end of the button rod, the magnet sleeve is arranged on the outside of the magnet seat, and the upper insert is arranged inside the magnet seat.

[0024] Preferably, a sealing member for sealingly cooperating with the lower end of the valve stem is nested on the inner wall of the upper end of the fifth chamber.

[0025] Preferably, a one-way valve assembly for discharging the air inside the first lower chamber and a needle valve assembly for allowing air to enter from the right outside to the inside are installed on the side wall of the valve body opposite to the first lower chamber.

[0026] Preferably, the one-way valve assembly includes a base, a rubber diaphragm installed on the base, a pressure plate that cooperates with the base and limits the middle part of the rubber diaphragm, and an end cover that covers the outer ends of the base and the pressure plate; an air outlet is jointly formed in the middle of the base, the pressure plate and the end cover to realize air discharge.

[0027] Preferably, the needle valve assembly includes a needle valve seat and a needle valve core plugged into the needle valve seat; the outer wall of the valve body is provided with an air inlet hole, the interior of the needle valve seat is hollow and connected with the air inlet hole, and the inner end has a flow limiting hole connected with the first lower chamber; the needle valve core is plugged into the flow limiting hole.

[0028] Preferably, the vacuum interface, air interface and output interface are all arranged on the lower end surface of the valve body, and there are three output interfaces in total.

[0029] Compared with the prior art, the advantages of the present invention are:

[0030] (1) The present invention mainly adopts manual triggering to realize the action of the controller, so that the output interface can be switched to allow air to enter or form a vacuum, thereby controlling the action of the vacuum drain valve, diaphragm valve, or pneumatic water valve connected thereto, and the control is convenient and efficient; and it is suitable for occasions where the air pressure variation range is large and the pressure is unstable.

[0031] (2) A flushing volume adjustment component is configured, and the device has large and small flushing functions during use. The large flushing function is used in situations where the water volume is large, and the small flushing function is used in situations where the water volume is small, thereby further reducing water consumption and improving water use energy efficiency. In the small flushing function state, the first upper chamber is connected to the first lower chamber, and the air pressure between the two can quickly reach equilibrium, so the button component can be quickly reset, thereby using less water. In the large flushing function state, the first upper chamber is not connected to the first lower chamber. At this time, the air in the first lower chamber needs to be obtained through the needle valve component, which has a delay function. The button component resets slowly, thereby using more water. At the same time, the delay function is adjustable, that is, the delay time of the large flushing function can be manually adjusted without disassembling the device, and the adjustment is quick and convenient.

[0032] (3) Through the reasonable design of the internal chamber, the manual controller can have an active drainage function to ensure that the condensed water formed inside the chamber can be discharged through the vacuum interface in a timely and unimpeded manner, thereby ensuring the efficient operation of the manual controller and avoiding the condensed water from affecting the sealing and movement flexibility of the controller, so that the devices connected to it can work normally and efficiently.

[0033] (4) The overall structure is compact, light and portable, and the size is flexible and adjustable. Injection molding is mostly used in production, and the transportation cost of a single product is low. Reasonable structural design can make installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0035] Figure 1 This is a structural schematic diagram of a hand-controlled magnetic opening and closing controller according to the present invention;

[0036] Figure 2 It is a cross-sectional view of a hand-controlled magnetic opening and closing controller according to the present invention;

[0037] Figure 3 is a cross-sectional view of the valve body of the present invention;

[0038] Figure 4 A bottom view of the valve body of the present invention;

[0039] Figure 5 It is a schematic diagram of the connection structure of the vacuum pipeline, the air pipeline and the output pipeline of the present invention;

[0040] Figure 6 is a cross-sectional view of the valve stem of the present invention;

[0041] Figure 7 This is an enlarged structural diagram of the upper insert of the present invention when it is convexly arranged;

[0042] Figure 8 This is an enlarged view of the structure when the upper insert of the present invention is set inward;

[0043] Fig. 9 is a cross-sectional view of the one-way valve assembly of the present invention;

[0044] Fig.10 It is a schematic diagram of the arrangement structure of the needle valve assembly and the valve body of the present invention;

[0045] Fig.11 is a cross-sectional view of the needle valve assembly of the present invention;

[0046] Fig.12 It is a cross-sectional view of the button rod and the flushing volume adjustment assembly of the present invention;

[0047] Fig.13 It is a cross-sectional view of the flushing volume adjustment assembly of the present invention when it is connected to the pressing head;

[0048] Fig.14 It is a structural schematic diagram of the flushing volume adjustment assembly of the present invention (the dial button is not provided on the upper end surface of the dial);

[0049] Fig.15 It is a structural schematic diagram of the flushing volume adjustment assembly of the present invention (a dial button is provided on the upper end surface of the dial);

[0050] Fig.16 This is a structural schematic diagram of the first upper chamber being connected to the first lower chamber when the flushing volume regulating assembly of the present invention is in the small flushing mode, that is, Figure 5 A magnified view of the structure at a in FIG.

[0051] Fig.17 It is a structural schematic diagram of the flushing volume regulating component of the present invention when it is in a large flushing mode;

[0052] Fig.18 It is a structural schematic diagram of the pressing head of the present invention;

[0053] Fig.19 It is a cross-sectional view of a hand-controlled magnetic opening and closing controller in a non-working state according to the present invention;

[0054] Fig. 20 This is a cross-sectional view of a hand-controlled magnetic opening and closing controller in the working state described in the present invention.

[0055] Among them: 1. Valve body;

[0056] 101, upper shell, 102, first middle shell, 103, second middle shell, 104, third middle shell, 105, fourth middle shell, 106, lower shell;

[0057] 11. First chamber, 12. Second chamber, 13. Third chamber, 14. Fourth chamber, 15. Fifth chamber, 16. Vacuum interface, 17. Air interface, 18. Output interface, 19. Ventilation hole;

[0058] 111, first upper chamber, 112, first lower chamber, 1121, annular concave cavity;

[0059] 161. Vacuum pipeline;

[0060] 171. Air pipeline;

[0061] 181, output pipeline;

[0062] 131, second upper chamber, 132, second lower chamber;

[0063] 2. Button component;

[0064] 21. button rod, 22. large corrugated diaphragm, 23. magnet, 24. first return spring, 25. pressing head, 26. upper insert (26a, 26b);

[0065] 251, chute;

[0066] 3. Plug;

[0067] 31. lower insert, 32. second return spring;

[0068] 4. Valve core assembly;

[0069] 41. valve stem, 42. small corrugated diaphragm, 43. third return spring;

[0070] 411, groove, 412, sealing plate;

[0071] 421, throttle hole;

[0072] 5. Check valve assembly;

[0073] 51. base, 52. rubber diaphragm, 53. pressing plate, 54. end cover, 55. air outlet;

[0074] 6. Needle valve assembly;

[0075] 61, air inlet hole, 62, needle valve seat, 63, needle valve core, 64, flow limiting hole;

[0076] 7. Flush volume adjustment component;

[0077] 71. sealing rod, 72. dial, 73. locking screw, 74. upper ventilation pipeline, 75. lower ventilation pipeline;

[0078] 711, gas pipeline;

[0079] 721, bump, 722, dial button. DETAILED DESCRIPTION

[0080] The present invention is further described in detail below in conjunction with specific embodiments:

[0081] like Figure 1 , Figure 2 As shown, a manual magnetic on-off controller comprises a valve body 1, a button assembly 2 arranged inside the valve body 1, and an actuator whose action is triggered by the button assembly 2; a vacuum interface 16, an air interface 17 and an output interface 18 are arranged on the outer wall of the valve body 1, and a vacuum pipeline 161 connected to the vacuum interface 16, an air pipeline 171 connected to the air interface 17, and an output pipeline 181 connected to the output interface 18 are arranged inside in sequence; the actuator comprises a plug 3 which is triggered to rise and fall by the button assembly 2 and intermittently opens and closes the vacuum pipeline 161 and the air pipeline 171, and a valve core assembly 4 for intermittently connecting the output interface 18 to the vacuum interface 16 and the air interface 17.

[0082] like Figure 3 As shown, the valve body 1 includes an upper shell 101, a first middle shell 102, a second middle shell 103, a third middle shell 104, a fourth middle shell 105 and a lower shell 106 which are sequentially buckled and fixedly connected from top to bottom; a first chamber 11, a second chamber 12, a third chamber 13, a fourth chamber 14 and a fifth chamber 15 are sequentially arranged inside from top to bottom, as shown in FIG. Figure 4 As shown, the vacuum interface 16 , the air interface 17 and the output interface 18 are all arranged on the lower end surface of the valve body 1 , and there are three output interfaces 18 in total.

[0083] Simple, such as Figure 2As shown, the button assembly 2 passes through the upper end of the valve body 1 and extends into the first chamber 11, and divides the first chamber 11 into a first upper chamber 111 and a first lower chamber 112; the plug 3 is slidably fitted in the second chamber 12, and a vent 19 connecting the vacuum line 161 and the air line 171 is provided below; the valve core assembly 4 is slidably fitted between the third chamber 13 and the fourth chamber 14, and the upper end is in the third chamber 13, and the third chamber 13 is divided into a second upper chamber 131 and a second lower chamber 132, and a throttle hole 421 is provided between the second upper chamber 131 and the second lower chamber 132; the lower end of the valve core assembly 4 extends into the fourth chamber 14, and the fifth chamber 15 can be blocked by lifting and lowering movement, and the communication between the second lower chamber 132 and the fourth chamber 14 is intermittently opened and closed; therefore, the specific communication mode of the above-mentioned vacuum interface 16, air interface 17 and output interface 18 is as follows:

[0084] like Figure 5 As shown, the vacuum interface 16 is respectively connected to the fifth chamber 15 and the vent hole 19, and constitutes a vacuum pipeline 161, as shown by the thick dotted line in the figure; the air interface 17 is connected to the second lower chamber 132, the second lower chamber 132 is connected to the second upper chamber 131 through the throttle hole 421, the second upper chamber 131 is connected to the second chamber 12, and together constitute an air pipeline 171, as shown by the thick solid line in the figure; the air interface 17 is also connected to the first upper chamber 111; the output interface 18 is connected to the fourth chamber 14, and constitutes an output pipeline 181, as shown by the thick dotted line with an arrow in the figure.

[0085] More specifically, Figure 2 As shown, the button assembly 2 includes a button rod 21, a large corrugated diaphragm 22 and a magnet 23 fixed to the lower end of the button rod 21 in sequence, and a first return spring 24 arranged between the lower end of the large corrugated diaphragm 22 and the lower end surface of the first chamber 11; a magnetic lower insert 31 and a second return spring 32 are arranged at the upper end of the plug 3; the valve core assembly 4 includes a valve stem 41, a small corrugated diaphragm 42 fixed to the upper end of the valve stem 41, and a third return spring 43 arranged between the upper end of the small corrugated diaphragm 42 and the upper end surface of the third chamber 13, wherein the throttle hole 421 is on the small corrugated diaphragm 42, combined with Figure 6 As shown, a groove 411 is provided on the side wall of the valve stem 41 for connecting the second lower chamber 132 with the fourth chamber 14, and a sealing plate 412 is provided at the lower end for disconnecting the second lower chamber 132 from the fourth chamber 14; the valve stem 41 is used to move downward and seal the upper end of the fifth chamber 15, and a sealing member is provided at the corresponding inner wall of the fifth chamber 15, and the sealing member is made of aluminum alloy 6061; wherein, the outer edge of the large corrugated diaphragm 22 is buckled and fixed between the upper shell 101 and the first middle shell 102, and the small corrugated diaphragm 42 is buckled and fixed between the third middle shell 104 and the fourth middle shell 105.

[0086] In this embodiment, the lower end of the button rod 21 is provided with a magnet seat and an upper insert 26 which is nested with the magnet seat. The magnet 23 is sleeved on the outer side of the magnet seat. The upper insert 26 has two configuration modes, such as Figure 7 As shown, the lower end of the upper insert 26a extends to below the magnet seat and is a cylindrical structure with an open lower end. The lower end surface of the first lower chamber 112 is provided with an annular concave cavity 1121 surrounding the movement area of ​​the plug 3, which plays an effective positioning role; Figure 8 As shown, the upper insert 26b is arranged inside the magnet seat; the upper insert 26 can be made of plastic material or non-magnetic stainless steel material.

[0087] like Figure 2 , Fig.10 As shown, a one-way valve assembly 5 for discharging the air inside the first lower chamber 112 and a needle valve assembly 6 for allowing the air to enter from the right outside to the inside are installed on the side wall of the valve body 1 opposite to the first lower chamber 112; Fig. 9 As shown, the one-way valve assembly 5 includes a base 51, a rubber diaphragm 52 installed on the base 51, a pressure plate 53 that cooperates with the base 51 and limits the middle of the rubber diaphragm 52, and an end cover 54 that covers the outer ends of the base 51 and the pressure plate 53; the base 51, the pressure plate 53 and the end cover 54 are jointly formed with an air outlet 55 in the middle of the end cover 54 to realize air discharge; Fig.11 As shown, the needle valve assembly 6 includes a needle valve seat 62 and a needle valve core 63 inserted into the needle valve seat 62; an air inlet hole 61 is provided on the outer wall of the valve body 1, the interior of the needle valve seat 62 is hollow and connected to the air inlet hole 61, and the inner end portion has a flow limiting hole 64 connected to the first lower chamber 112; the needle valve core 63 is inserted into the flow limiting hole 64.

[0088] At the same time, the present invention also has a large flushing mode and a small flushing mode, which are applicable to occasions with large and small water volumes. The specific structure is as follows:

[0089] like Fig.12 As shown, the button rod 21 is hollow inside, and a pressing head 25 is fixed to the upper end; a flushing volume adjustment component 7 is also provided inside the button rod 21, such as Fig.13 , Fig.14As shown, the flushing volume adjustment component 7 includes a sealing rod 71 inserted into the button rod 21, a dial 72 fixedly connected to the upper end of the sealing rod 71, and a locking screw 73 that penetrates the pressing head 25 to lock the sealing rod 71; a "7"-shaped air guide pipe 711 is formed between the lower end of the sealing rod 71 and the side wall, an upper air vent 74 that connects the air guide pipe 711 with the first upper chamber 111 is provided on the inner side of the upper end of the valve body 1, and a lower air vent 75 that connects the air guide pipe 711 with the second lower chamber 132 is provided inside the button rod 21; the sealing rod 71 realizes the connection and disconnection of the upper air vent 74 and the lower air vent 75 by rotation; as a further optimization of this embodiment, in order to facilitate the rotation of the sealing rod 71, as shown Fig.15 As shown, a dial button 722 protruding upward is provided on the upper end surface of the dial 72.

[0090] like Fig.16 As shown, when the side of the air guide pipe 711 is aligned with the upper ventilation pipe 74, the upper ventilation pipe 74 is connected to the lower ventilation pipe 75, and the communication path is shown by the dotted line in the figure. At this time, it is a small flushing mode; Fig.17 As shown, when the side of the air guide pipe 711 is not aligned with the upper ventilation pipe 74, the upper ventilation pipe 74 is not connected to the lower ventilation pipe 75, and this is the large flushing mode; in order to facilitate rotation, as shown in FIG. Fig.14 , Fig.15 As shown, a protrusion 721 is provided at the lower end of the dial 72. Fig.18 As shown, the pressing head 25 has a slide groove 251 inside for the protrusion 721 to slide with, and the slide groove 251 is in a 1 / 4 arc shape. The large flushing mode and the small flushing mode can be adjusted by rotating the dial 90° once.

[0091] The working principle of the present invention is as follows:

[0092] In non-working state: Fig.19 As shown, the button assembly 2 rebounds to the top under the action of the first return spring 24. At this time, the distance between the magnet 23 and the lower insert 31 is too far, and the magnetic force of the magnet 23 is insufficient to overcome the elastic force of the second return spring 32 at the upper end of the plug 3, so that the plug 3 closes the vent 19 under the action of the second return spring 32, and the vacuum pipeline 161 is not connected to the second chamber 12; under the action of the throttle hole 421 on the small corrugated diaphragm 42, the entire air pipeline 171 ( Figure 5The path passed by the thick solid line in the figure is all air. At this time, the second upper chamber 131 and the second lower chamber 132 are all air, and the air pressure is the same. Then, the valve core assembly 4 blocks the fifth chamber 15 under the spring force of the third return spring 43; due to the presence of the groove 411 on the side wall of the valve stem 41, the second lower chamber 132 is connected with the fourth chamber 14 at this time. Since the air interface 17 is connected with the second lower chamber 132, the output interface 18 is connected with the fourth chamber 14, and then the air interface 17 is connected with the output interface 18, and air is introduced into the output interface 18. The flow path of the air is shown by the thick dotted line in the figure.

[0093] In working state: Fig. 20 As shown, during the downward movement of the button assembly 2, the force applied by the human hand overcomes the spring force of the first return spring 24. At this time, the magnet 23 keeps approaching the lower insert 31. When the distance between the two gradually decreases, the magnetic force keeps increasing and overcomes the spring force of the second return spring 32 to attract the plug 3 and the lower insert 31 to rise, opening the vent 19. Since the throttle hole 421 on the small corrugated diaphragm 42 has no time to ventilate, a vacuum is formed in the second upper chamber 131, while the second lower chamber 132 is filled with air. A pressure difference is formed at the upper and lower ends of the small corrugated diaphragm 42. And a pressure differential force in an upward direction is generated, the valve core assembly 4 moves upward, the sealing plate 412 fits against the upper end surface of the fourth chamber 14, and the connection between the second lower chamber 132 and the fourth chamber 14 is closed. At this time, the fourth cavity is connected with the fifth chamber 15. Since the vacuum interface 16 is connected with the fifth chamber 15, the output interface 18 is connected with the fourth chamber 14, and then the vacuum interface 16 is connected with the output interface 18. A vacuum is formed at the output interface 18. The vacuum formation path is shown by the thick dotted line in the figure, and the air flow path is shown by the thick solid line in the figure.

[0094] In the delay function state: adjust the flushing volume adjustment component 7 to the large flushing mode. In the working state, the air inside the first lower chamber 112 is discharged to the outside of the valve body 1 through the one-way valve component 5. As the hand leaves, the button component 2 begins to reset and rebound under the action of the first reset spring 24. The first lower chamber 112 needs to be continuously replenished with air. Due to the current limiting effect of the needle valve component 6, the reset time is extended, thereby realizing the delay function.

[0095] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A hand-controlled magnetic opening and closing controller, characterized in that: It comprises a valve body, a button assembly arranged inside the valve body, and an actuator triggered by the button assembly; a vacuum interface, an air interface and an output interface are arranged on the outer wall of the valve body, and a vacuum pipeline connected to the vacuum interface, an air pipeline connected to the air interface, and an output pipeline connected to the output interface are arranged inside in sequence; the actuator comprises a plug that is triggered to rise and fall by the button assembly and intermittently opens and closes the vacuum pipeline and the air pipeline, and a valve core assembly used to make the output interface intermittently connected to the vacuum interface and the air interface; The valve body is provided with a first chamber, a second chamber, a third chamber, a fourth chamber and a fifth chamber from top to bottom in sequence; the button assembly passes through the upper end of the valve body and extends into the first chamber, and divides the first chamber into a first upper chamber and a first lower chamber; the plug sleeve is slidably fitted in the second chamber, and a vent hole connecting the vacuum pipeline and the air pipeline is provided below; the valve core assembly sleeve is slidably fitted between the third chamber and the fourth chamber, and the upper end is located in the third chamber, and the third chamber is divided into a second upper chamber and a second lower chamber, and a second upper chamber and a second lower chamber are provided between the second upper chamber and the second lower chamber. A throttling hole is provided; the lower end of the valve core assembly extends into the fourth chamber, and can block the fifth chamber by lifting and lowering movement, and intermittently open and close the communication between the second lower chamber and the fourth chamber; the vacuum interface is respectively connected to the fifth chamber and the vent hole, and forms a vacuum pipeline; the air interface is connected to the second lower chamber, the second lower chamber is connected to the second upper chamber through the throttling hole, the second upper chamber is connected to the second chamber, and together they form an air pipeline; the air interface is also connected to the first upper chamber; the output interface is connected to the fourth chamber, and forms an output pipeline; The button assembly includes a button rod, a large corrugated diaphragm and a magnet fixed to the lower end of the button rod in sequence, and a first return spring arranged between the lower end of the large corrugated diaphragm and the lower end surface of the first chamber; the upper end of the plug is provided with a magnetic lower insert and a second return spring; the valve core assembly includes a valve stem, a small corrugated diaphragm fixed to the upper end of the valve stem, and a third return spring arranged between the upper end of the small corrugated diaphragm and the upper end surface of the third chamber; a groove is arranged on the side wall of the valve stem to realize the communication between the second lower chamber and the fourth chamber, and a sealing plate is arranged at the lower end to realize the disconnection between the second lower chamber and the fourth chamber; the throttle hole is located on the small corrugated diaphragm; The interior of the button rod is hollow, and a pressing head is fixed to the upper end; a flushing volume adjustment component is also provided inside the button rod, and the flushing volume adjustment component includes a sealing rod plugged into the interior of the button rod, a dial fixedly connected to the upper end of the sealing rod, and a locking screw that penetrates the pressing head to lock the sealing rod; a "7"-shaped air guide pipeline is formed between the lower end of the sealing rod and the side wall, an upper air guide pipeline connecting the air guide pipeline with the first upper chamber is provided on the inner side of the upper end of the valve body, and a lower air guide pipeline connecting the air guide pipeline with the second lower chamber is provided inside the button rod; the sealing rod realizes the connection and disconnection of the upper air guide pipeline and the lower air guide pipeline by rotation.

2. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: When the side of the air guide pipeline is aligned with the upper ventilation pipeline, the upper ventilation pipeline is connected to the lower ventilation pipeline, and this is the small flushing mode; when the side of the air guide pipeline is not aligned with the upper ventilation pipeline, the upper ventilation pipeline is not connected to the lower ventilation pipeline, and this is the large flushing mode.

3. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: The lower end of the dial is provided with a protrusion, and the interior of the pressing head is provided with a sliding groove for sliding cooperation of the protrusion, and the sliding groove is in a 1 / 4 arc shape.

4. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: The upper end surface of the dial is provided with a dial button protruding upwards.

5. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: The valve body includes an upper shell, a first middle shell, a second middle shell, a third middle shell, a fourth middle shell and a lower shell which are snapped and fixedly connected in sequence from top to bottom; the outer edge of the large corrugated diaphragm is snapped and fixed between the upper shell and the first middle shell, and the small corrugated diaphragm is snapped and fixed between the third middle shell and the fourth middle shell.

6. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: The lower end of the button rod is provided with a magnet seat and an upper insert that is nested with the magnet seat. The magnet is sleeved on the outside of the magnet seat. The lower end of the upper insert extends to the bottom of the magnet seat and is a cylindrical structure with an open lower end. The lower end surface of the first lower chamber is provided with an annular concave cavity surrounding the movement area of ​​the plug.

7. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: The lower end of the button rod is provided with a magnet seat and an upper insert which is nested with the magnet seat. The magnet sleeve is arranged on the outside of the magnet seat, and the upper insert is arranged inside the magnet seat.

8. The hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: A sealing member for sealingly cooperating with the lower end of the valve stem is nested on the inner wall of the upper end of the fifth chamber.

9. A hand-controlled magnetic opening and closing controller according to claim 1, characterized in that: A one-way valve assembly for discharging the air inside the first lower chamber and a needle valve assembly for allowing air to enter from the right outside to the inside are installed on the side wall of the valve body opposite to the first lower chamber.

10. A hand-controlled magnetic opening and closing controller according to claim 9, characterized in that: The one-way valve assembly includes a base, a rubber diaphragm installed on the base, a pressure plate that cooperates with the base and limits the middle of the rubber diaphragm, and an end cover that covers the outer ends of the base and the pressure plate; the base, the pressure plate and the middle of the end cover are jointly formed with an air outlet for exhausting air.

11. A hand-controlled magnetic opening and closing controller according to claim 10, characterized in that: The needle valve assembly includes a needle valve seat and a needle valve core plugged into the needle valve seat; the outer wall of the valve body is provided with an air inlet hole, the interior of the needle valve seat is hollow and connected to the air inlet hole, and the inner end portion is provided with a flow limiting hole connected to the first lower chamber; the needle valve core is plugged into the flow limiting hole.

12. A hand-controlled magnetic opening and closing controller according to any one of claims 1 to 11, characterized in that: The vacuum interface, air interface and output interface are all arranged on the lower end surface of the valve body, and there are three output interfaces in total.

Images